CN102413544B - The searching method and system of LTE network - Google Patents
The searching method and system of LTE network Download PDFInfo
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- CN102413544B CN102413544B CN201110398567.5A CN201110398567A CN102413544B CN 102413544 B CN102413544 B CN 102413544B CN 201110398567 A CN201110398567 A CN 201110398567A CN 102413544 B CN102413544 B CN 102413544B
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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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Abstract
The present invention provides a kind of searching method of LTE network and systems, wherein this method includes：The terminal for exiting LTE network receives the LTE network coverage information for the LA that the MSC that MSC mobile switching centres send is administered after the network for entering other standards, wherein LTE network coverage information is used to indicate whether administered LA supports LTE network to cover；The terminal for exiting LTE network searches for LTE network according to LTE network coverage information in the LA for supporting LTE network covering.The present invention solves the problems, such as that the terminal in the prior art when not knowing LTE network coverage condition constantly searches for LTE network on a large scale, to improve search success rate, reduces the power consumption of terminal.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of LTE (Long-Term Evolution, long term evolution)
The searching method and system of network.
Background technology
Initial stage is disposed in LTE (Long-Term Evolution, long term evolution) network, is thrown for conventional mobile network
The protection of money and deployment strategy to LTE/SAE (System Architecture Evolution, System Architecture Evolution) network
The considerations of, in the stage that LTE/SAE puts into effect, part operator wishes still to provide CS using 2G or 3G wireless networks
(Circuit Switch, circuit switching) voice service.So CS Fallback (CS voice rollbacks business) technology will be for that will stay
The user pricked in the lte networks is switched in CS networks to complete the processing procedure of CS business.In this case, operator can
The MSC (Mobile Switching Center, mobile switching centre) that can select only upgrading 2G/3G networks, without upgrading base
It stands, to reduce investment.
Under above-mentioned LTE network coverage condition, terminal can use LTE network to complete Packet Service, can also use 2G/
3G network completes Circuit Service.But when terminal enters 2G/3G networks, terminal does not have the neighbour of LTE network when being in Idle state
Cell information, when not knowing LTE network coverage condition, terminal needs constantly search for LTE network on a large scale, therefore cause to drop
Low search success rate, has sharply increased terminal power consumption amount.
Invention content
The present invention provides a kind of searching method of LTE network and system, at least to solve in the prior art do not knowing
The problem of terminal constantly searches for LTE network on a large scale when road LTE network coverage condition.
According to an aspect of the invention, there is provided a kind of searching method of LTE network comprising：Exit LTE network
Terminal receives the LA's (Location Area, position area) that the MSC that MSC is sent is administered after the network for entering other standards
LTE network coverage information, wherein LTE network coverage information is used to indicate whether administered LA supports LTE network to cover；It moves back
The terminal for going out LTE network searches for LTE network according to LTE network coverage information in the LA for supporting LTE network covering.
Preferably, the terminal MSC that reception MSC is sent after the network for entering other standards for exiting LTE network is administered
LA LTE network coverage information before, the searching method of above-mentioned LTE network includes：In the terminal for exiting LTE network at other
During the network of standard carries out location updating, LTE network coverage information that MSC is preserved, which is sent to, exits LTE network
Terminal；And/or during exiting network progress CS business of the terminal of LTE network in other standards, MSC is preserved
LTE network coverage information be sent to the terminal for exiting LTE network.
Preferably, the terminal for exiting LTE network is searched according to LTE network coverage information in the LA for supporting LTE network covering
The step of rope LTE network includes：Exit LAI (the Location Area in the terminal acquisition LTE network coverage information of LTE network
Identifier, Location Area Identification), wherein LAI is used to indicate the LA for supporting LTE network covering；Judged according to the LAI of acquisition
Exit whether the LA residing for the terminal of LTE network supports LTE network to cover；If supporting LTE network covering, LTE network is exited
Terminal search for LTE network in exiting the LA residing for the terminal of LTE network.
Preferably, judging whether the LA exited residing for the terminal of LTE network supports LTE network to cover according to the LAI of acquisition
After lid, the searching method of above-mentioned LTE network further includes：If judging to exit the LA residing for the terminal of LTE network does not support LTE
The network coverage, then exit the terminal of LTE network support LTE network covering and with exit the LA residing for the terminal of LTE network
LTE network is searched in adjacent LA.
Preferably, the step of searching for LTE network in the LA for supporting LTE network covering according to LTE network coverage information is wrapped
It includes：The terminal of LTE network is exited in Idle state, is searched in the LA for supporting LTE network covering according to LTE network coverage information
LTE network；If searching LTE network cell, the terminal for exiting LTE network judges whether to need to access the LTE network searched；
If judging to need to access the LTE network searched, the terminal for exiting LTE network is linked into the LTE network searched.
Preferably, LTE network coverage information is further used for indicating whether the cell on administered LA supports LTE network
Covering.
According to another aspect of the present invention, a kind of search system of LTE network is provided comprising：Terminal, wherein eventually
End includes：Receiving unit, for after LTE network exits, receiving what MSC was sent after the network for entering other standards in terminal
The LTE network coverage information for the LA that MSC is administered, wherein LTE network coverage information is used to indicate whether administered LA supports
LTE network covers；Search unit, for searching for LTE nets in the LA for supporting LTE network covering according to LTE network coverage information
Network.
Preferably, the search system of above-mentioned LTE network includes：MSC, wherein MSC includes：First transmission unit is used for
The terminal of LTE network is exited during the network of other standards carries out location updating, the LTE network that MSC is preserved covers
Information is sent to the terminal for exiting LTE network；And/or second transmission unit, for being made at other in the terminal for exiting LTE network
During the network of formula carries out CS business, the MSC LTE network coverage informations preserved are sent to the terminal for exiting LTE network.
Preferably, search unit includes：Acquisition module, for obtaining the LAI in LTE network coverage information, wherein LAI
It is used to indicate the LA for supporting LTE network covering；First judgment module, the end for exiting LTE network according to the LAI of acquisition judgements
Whether the residing LA in end supports LTE network to cover；First search module, for judging to exit residing for the terminal of LTE network
LA support LTE network covering after, search for LTE network in exiting the LA residing for the terminal of LTE network.
Preferably, the first search module is additionally operable to not support LTE nets judging to exit the LA residing for the terminal of LTE network
After network covering, LTE nets are searched in support LTE network covering and adjacent with the LA residing for the terminal for exiting LTE network LA
Network.
Preferably, search unit includes：Second search module, for when the terminal for exiting LTE network is in Idle state,
According to LTE network coverage information LTE network is searched in the LA for supporting LTE network covering；Second judgment module, for searching for
To after LTE network, judge whether to need to access the LTE network searched；Processing module, for judging to need to access search
After the LTE network arrived, the terminal that will move out LTE network is linked into the LTE network searched.
In the present invention, exit what the terminal of LTE network was administered by receiving the MSC that MSC mobile switching centres send
The LTE network coverage information of LA, learns LTE network coverage condition, is targetedly searched in the LA for supporting LTE network covering
LTE network solves the terminal in the prior art when not knowing LTE network coverage condition and constantly searches for LTE nets on a large scale
The problem of network, reduces the power consumption of terminal to improve search success rate.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of preferred structure chart of the search system of LTE network according to the ... of the embodiment of the present invention；
Fig. 2 is the preferred structure chart of another kind of the search system of LTE network according to the ... of the embodiment of the present invention；
Fig. 3 is a kind of preferred structure chart of search unit according to the ... of the embodiment of the present invention；
Fig. 4 is the preferred structure chart of another kind of search unit according to the ... of the embodiment of the present invention；
Fig. 5 is a kind of preferred flow chart of the searching method of LTE network according to the ... of the embodiment of the present invention；
Fig. 6 is the preferred flow chart of another kind of the searching method of LTE network according to the ... of the embodiment of the present invention；
Fig. 7 is another preferred flow chart of the searching method of LTE network according to the ... of the embodiment of the present invention.
Specific implementation mode
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
In the following examples, communication can be realized by the combination of wireless connection or wired connection or both,
The present invention does not limit this.
Embodiment 1
Fig. 1 is a kind of preferred structure chart of the search system of LTE network according to the ... of the embodiment of the present invention, as shown in Figure 1,
The search system of the LTE network includes：Terminal 102, wherein terminal includes：Receiving unit 1021, in terminal from LTE nets
After network exits, into other standards network and receive the LTE network coverage information of LA that the MSC of MSC transmissions administered,
In, LTE network coverage information is used to indicate whether administered LA supports LTE network to cover；Search unit 1022, it is single with receiving
Member 1021 communicates, for searching for LTE network in the LA for supporting LTE network covering according to LTE network coverage information.Preferably,
The network of other above-mentioned standards refers to：With the network of LTE network different systems, it may for example comprise：TD-SCDMA network, WCDMA nets
Network, CDMA2000 networks or GSM network.
In above preferred embodiment, exit LTE network terminal enter other standards network after by receive MSC move
The LTE network coverage information for the LA (Location Area, position area) that the MSC that dynamic switching centre sends is administered, learns LTE
Network coverage situation is targetedly searched for LTE network in the LA for supporting LTE network covering, is solved in the prior art
The problem of terminal constantly searches for LTE network on a large scale when not knowing LTE network coverage condition, searches for successfully to improve
Rate reduces the power consumption of terminal.
The above-mentioned terminal for exiting LTE network can be that the terminal of the cell in other standard networks is reselected under Idle state
Or the terminal that the cell in other standard networks is reselected to after LTE network covers is lost, can also be to carry out CS business procedures
In be linked into the terminal of cell in other standard networks.Preferably, the network of other above-mentioned standards refers to：Not with LTE network
With the network of standard, it may for example comprise：TD-SCDMA network, WCDMA networks, CDMA2000 networks or GSM network.
Further, on the basis of the above embodiments, LTE network coverage information can further indicate to be administered
Whether the cell on LA supports LTE network to cover.In this preferred embodiment, LTE network coverage information is accurate to cell, makes
Obtaining can more accurately indicate to exit the terminal progress LTE network search of LTE network, and exiting the terminal of LTE network can prop up
It holds in the cell of LTE network covering and searches for LTE network, so as to shorten the time needed for search LTE network, saved search
Resource needed for LTE network improves search success rate.
On the basis of the above embodiments, the present invention has done further improvement to the search system of above-mentioned LTE network, such as
Shown in Fig. 2, the search system of the LTE network includes：MSC 202, wherein MSC 202 includes：First transmission unit 2021 is used
In the LTE network that during network of other standards carries out location updating, MSC is preserved in the terminal for exiting LTE network
Coverage information is sent to the terminal for exiting LTE network；And/or second transmission unit 2022, in the terminal for exiting LTE network
During the network of other standards carries out CS business, the MSC LTE network coverage informations preserved are sent to and exit LTE nets
The terminal of network.In the present embodiment, MSC 202 sends LTE network covering letter under different scenes to the terminal for exiting LTE network
Breath, the terminal to exit LTE network obtain real-time, effective LTE network coverage information, improve and exit LTE network
The success rate of terminal searching enhances the flexibility of the present invention.Preferably, the network of other above-mentioned standards refers to：With LTE network
The network of different systems, it may for example comprise：TD-SCDMA network, WCDMA networks, CDMA2000 networks or GSM network.
On the basis of above-mentioned each preferred embodiment, the present invention provides a kind of preferred search units 1022, such as Fig. 3 institutes
Show, which includes：Acquisition module 302, for obtaining the LAI in LTE network coverage information, wherein LAI is used for
It indicates to support the LA that LTE network covers；First judgment module 304, communicates with acquisition module 302, for being sentenced according to the LAI of acquisition
Whether the disconnected LA exited residing for the terminal of LTE network supports LTE network to cover；First search module 306, with the first judgment module
304 communications, for after judging to exit the LA residing for the terminal of LTE network and supporting LTE network covering, exiting LTE network
Terminal residing for LA in search for LTE network.In the present embodiment, according to the LAI for the LA for supporting LTE network covering
(Location Area Identifier, Location Area Identification) judges whether the LA exited residing for the terminal of LTE network supports LTE
The network coverage preferentially searches for LTE network, to exit LTE nets if supporting in exiting the LA residing for the terminal of LTE network
The terminal of network can promptly scan for the operation of LTE network, shorten the terminal determination progress LTE nets for exiting LTE network
Time needed for the LA of network search.
Further, after judging to exit the LA residing for the terminal of LTE network and LTE network is not supported to cover, first searches
Rope module 306 is it is also an option that in LA that support LTE network covering and adjacent with the LA residing for the terminal for exiting LTE network
Middle search LTE network, to ensure that the terminal for exiting LTE network can search for LTE network in the LA for supporting LTE network covering,
Improve search success rate.
On the basis of the various embodiments described above, the present invention has also done further improvement to search unit 1022, such as Fig. 4 institutes
Show, which includes：Second search module 402, for when the terminal for exiting LTE network is in Idle state, root
According to LTE network coverage information LTE network is searched in the LA for supporting LTE network covering；Second judgment module 404, is searched with second
Rope module 402 communicates, and needs to access the LTE network searched for after searching LTE network, judging whether；Processing module
406, it is communicated with the second judgment module 404, for after judging to need to access the LTE network searched, will move out LTE network
Terminal be linked into the LTE network searched.In the present embodiment, the terminal for exiting LTE network in Idle state is being searched for
To after LTE network, the LTE network that access searches can be chosen whether as needed, to meet the different demands of terminal,
Enhance the practicability of the present invention.
Embodiment 2
On the basis of figures 1-4, the present invention provides a kind of searching methods of preferred LTE network, as shown in figure 5, should
The searching method of LTE network includes：
S502：The terminal for exiting LTE network receives what the MSC that MSC is sent was administered after the network for entering other standards
The LTE network coverage information of LA, wherein LTE network coverage information is used to indicate whether administered LA supports LTE network to cover
Lid；
S504：The terminal for exiting LTE network is searched for according to LTE network coverage information in the LA for supporting LTE network covering
LTE network.Preferably, the network of other above-mentioned standards refers to：With the network of LTE network different systems, it may for example comprise：TD-
SCDMA networks, WCDMA networks, CDMA2000 networks or GSM network.
In above preferred embodiment, the terminal of LTE network is exited after the network for entering other standards by receiving MSC
The LTE network coverage information for the LA that the MSC of transmission is administered, learns LTE network coverage condition, is targetedly supporting LTE
LTE network is searched in the LA of the network coverage, solves the terminal big model in the prior art when not knowing LTE network coverage condition
The problem of constantly searching for LTE network is enclosed, to improve search success rate, the time needed for search LTE network is shortened, subtracts
The power consumption of terminal is lacked.
The above-mentioned terminal for exiting LTE network can be that the terminal of the cell in other standard networks is reselected under Idle state
Or the terminal that the cell in other standard networks is reselected to after LTE network covers is lost, can also be to carry out CS business procedures
In be linked into the terminal of cell in other standard networks.Preferably, the network of other above-mentioned standards refers to：Not with LTE network
With the network of standard, it may for example comprise：TD-SCDMA network, WCDMA networks, CDMA2000 networks or GSM network.
Further, on the basis of the above embodiments, LTE network coverage information can further indicate to be administered
Whether the cell on LA supports LTE network to cover.In this preferred embodiment, LTE network coverage information is accurate to cell, makes
Can more accurately indicate that the terminal for exiting LTE network carries out LTE network search, the terminal for exiting LTE network can be
It supports to search for LTE network in the cell of LTE network covering, so as to shorten the time needed for search LTE network, has saved search
Resource needed for LTE network improves search success rate.
On the basis of the above embodiments, the present invention has done further improvement to the searching method of above-mentioned LTE network,
Terminal to exit LTE network obtains real-time, effective LTE network coverage information.Specifically, above-mentioned LTE network is searched
Suo Fangfa includes：Exit LTE network terminal receive the LTE network coverage information of LA that the MSC that MSC is sent is administered before,
Exiting the terminal of LTE network during the network of other standards carries out location updating, the LTE network that MSC is preserved
Coverage information is sent to the terminal for exiting LTE network；And/or it is carried out in the network of other standards in the terminal for exiting LTE network
During CS business, the LTE network coverage information that MSC is preserved is sent to the terminal for exiting LTE network.In the present embodiment
In, MSC sends LTE network coverage information under different scenes to the terminal for exiting LTE network, to exit the end of LTE network
End obtains real-time, effective LTE network coverage information, improves the success rate for the terminal searching for exiting LTE network, enhances
The flexibility of the present invention.Preferably, the network of other above-mentioned standards refers to：With the network of LTE network different systems, for example, packet
It includes：TD-SCDMA network, WCDMA networks, CDMA2000 networks or GSM network.
On the basis of above-mentioned each preferred embodiment, the present invention provides a kind of preferred terminal roots for exiting LTE network
The method for searching for LTE network in the LA for supporting LTE network covering according to LTE network coverage information, to exit the end of LTE network
End can promptly scan for the operation of LTE network.Specifically, the above-mentioned terminal for exiting LTE network is covered according to LTE network
Information support LTE network covering LA in search LTE network method include：The terminal for exiting LTE network obtains LTE network
LAI in coverage information, wherein LAI is used to indicate the LA for supporting LTE network covering；LTE is exited according to the LAI of acquisition judgements
Whether the LA residing for the terminal of network supports LTE network to cover；If supporting LTE network covering, the terminal for exiting LTE network exists
It exits in the LA residing for the terminal of LTE network and searches for LTE network.In the present embodiment, according to the LA's for supporting LTE network covering
LAI judges whether the LA exited residing for the terminal of LTE network supports LTE network to cover, if supporting, is preferentially exiting LTE nets
LTE network is searched in LA residing for the terminal of network, the terminal to exit LTE network can promptly scan for LTE network
Operation, shorten exit LTE network terminal determine carry out LTE network search LA needed for time.
Further, on the basis of the above embodiments, it does not support judging to exit the LA residing for the terminal of LTE network
LTE network covering after, exit LTE network terminal be also an option that support LTE network covering and with exit LTE network
Terminal residing for the adjacent LA of LA in search for LTE network, to ensure that the terminal for exiting LTE network can support LTE network
LTE network is searched in the LA of covering, improves search success rate.
On the basis of the various embodiments described above, the present invention exists to the terminal for exiting LTE network according to LTE network coverage information
The method for supporting search LTE network in the LA of LTE network covering has done further improvement, to meet the different need of terminal
It asks.Specifically, the above-mentioned terminal for exiting LTE network is searched for according to LTE network coverage information in the LA for supporting LTE network covering
The method of LTE network further includes：The step of LTE network is searched in the LA for supporting LTE network covering according to LTE network coverage information
Suddenly include：The terminal of LTE network is exited in Idle state, according to LTE network coverage information in the LA for supporting LTE network covering
Search for LTE network；If searching LTE network, the terminal for exiting LTE network judges whether to need to access the LTE network searched；
If judging to need to access the LTE network searched, the terminal for exiting LTE network is linked into the LTE network searched.At this
In embodiment, the terminal for exiting LTE network in Idle state can choose whether as needed after searching LTE network
The LTE network searched is accessed, to meet the different demands of terminal, enhances the practicability of the present invention.
Embodiment 3
On the basis of above-mentioned each preferred embodiment, the present invention provides the another kinds of the searching method of LTE network preferably
Method, as shown in fig. 6, the searching method of the LTE network includes：
S602：Terminal is normally stationed under LTE network, the case where measuring other wireless access technologys, in this case,
General LTE base station information can broadcast different system information of adjacent cells；
S604：Gravity treatment arrives other to terminal after gravity treatment to other standard cells or loss LTE network covering under Idle state
Standard cell (is equivalent to terminal and exits LTE network)；
S606：After terminal enters the cell of other standards, launch position renewal process；
S608：MSC preserves the information of the corresponding LTE network covering of the cell in administered LA, in position updating process
Whether the corresponding LA of middle instruction LAI has LTE network covering, the information of instruction to can be as accurate as cell；
S610：After terminal returns to Idle state, searched in the corresponding LA of LAI or cell that are covered there are LTE network in instruction
LTE network；
S612：If corresponding LA or cell do not support LTE network to cover, terminal can according to correlation setting determine with compared with
LTE network adjacent area is not searched in long periodic searches LTE network adjacent cell, and above-mentioned related setting is included whether to search for and be searched
The period of rope；
S614：Terminal changes whether Idle state occurs position area, changes if position area occurs in Idle state, repeats to walk
Rapid S606-S612, if terminal initiates CS business, if generating switching, the basis in handover request in CS business procedures
The corresponding LTE network coverage information of cell in its LA administered that MSC is preserved indicates whether the LA has LTE network covering,
The LTE network coverage information can arrive cell level in detail, and after CS service endings, whether terminal has LTE nets according to residing LA
Network MPS process decides whether to search for LTE network cell, changes if position area does not occur in Idle state, go to step S616；
S616：If terminal has searched LTE network cell under Idle state, decided whether according to cell re-selection procedure
It needs to be stationed the LTE network cell searched, once terminal gravity treatment, to the LTE network cell searched, terminal initiates joint
Routing Area Update executes step S602.
In the above-described embodiments, when terminal enters the network of other standards, MSC and MME (Mobile Management
Entity, mobility management entity) there are a SGs interfaces, MSC preserves the corresponding LTE network coverage conditions of LA of itself covering, can be with
It notifies terminal has LTE network covering in which position area in position updating process or in CS business procedures, and can indicate
Cell level-one, terminal enter corresponding LA or cell searching LTE wireless networks under Idle state, realize that terminal can be targeted
Search LTE network, without it is no instruction LTE cell informations other standards cell in always on LTE network cell
Search, to reduce the power consumption of terminal, meanwhile, operator is not necessarily to upgrade the base station of the network of other standards to notify terminal
LTE network cell information in the network of other standards, to reduce upgrade cost.
On the basis of the above embodiments, the present invention also provides another preferred sides of the searching method of LTE network
Method, as shown in fig. 7, the searching method of the LTE network includes：
S702：Terminal is normally stationed under LTE network, the case where measuring other wireless access technologys, in this case,
General LTE base station information can broadcast different system information of adjacent cells；
S704：Terminal needs to carry out CS business, completes CS-Fallback (CS voice rollbacks business) mistake in the lte networks
Journey；
S706：After terminal completes CS-Fallback processes, the cell that terminal enters other standards carries out CS business；
S708：If generating switching in the CS business procedures, according to MSC is preserved, it is administered in handover request
The corresponding LTE network coverage information of cell in LA indicates whether the LA has LTE network covering, which can
To arrive cell level in detail, if not switching generation, acquiescence supports LTE network covering；
S710：After terminal discharges CS circuits, if quartered at without redirection information or LTE network relevant information, terminal
How the network cell of other standards searches for LTE network according to the decision of LTE network coverage information；
S712：If corresponding LA or cell do not support LTE network to cover, terminal can with longer periodic searches or
LTE network cell is not searched for, if corresponding LA or cell support LTE network covering, terminal to start to search for LTE network cell；
S714：Whether terminal occurs the variation of position area, changes in case of position area, repeats the step S606- in Fig. 6
S612 goes to step S716 if the variation of position area does not occur；
S716：If searching LTE network cell, decides whether to be stationed according to cell re-selection procedure and search
LTE network cell, once gravity treatment, to the LTE network cell searched, terminal initiates the update of joint route area, then executes Fig. 6
In step S602.
In the above-described embodiments, when terminal enters the network of other standards, MSC and MME (Mobile Management
Entity, mobility management entity) there are a SGs interfaces, MSC preserves the corresponding LTE network coverage conditions of LA of itself covering, can be with
It notifies terminal has LTE network covering in which position area in position updating process or in CS business procedures, and can indicate
Cell level-one, terminal enter corresponding LA or cell searching LTE wireless networks under Idle state, realize that terminal can be targeted
Search LTE network, without it is no instruction LTE cell informations other standards cell in always on LTE network cell
Search, to reduce the power consumption of terminal, meanwhile, operator is without upgrading the base station of other standards to notify terminal at other
LTE network cell information in the network of standard, to reduce upgrade cost.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be with different from shown in sequence execution herein
The step of going out or describing, either they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of searching method of LTE network, which is characterized in that including：
The terminal for exiting long term evolution LTE network receives what moving exchanging center MSC was sent after the network for entering other standards
The LTE network coverage information for the position area LA that the MSC is administered, wherein the LTE network coverage information, which is used to indicate, is managed
Whether the LA of linchpin supports the LTE network to cover；
The terminal for exiting LTE network is searched according to the LTE network coverage information in the LA for supporting the LTE network covering
Rope LTE network, wherein according to the LTE network coverage information in the LA for supporting LTE network covering described in search
The step of LTE network includes：
The terminal for exiting LTE network is supporting the LTE network in Idle state, according to the LTE network coverage information
The LTE network is searched in the LA of covering；
If searching the LTE network, the terminal for exiting LTE network judges whether to need to access the LTE searched
Network；
If judge to need to access the LTE network that searches, the terminal for exiting LTE network, which is linked into, to be searched
The LTE network.
2. according to the method described in claim 1, it is characterized in that, the terminal for exiting LTE network is entering other standards
Network after receive the LTE network coverage information of LA that the MSC that MSC is sent is administered before, including：
In the terminal for exiting LTE network during the network of other standards carries out location updating, the MSC will
Its described LTE network coverage information preserved is sent to the terminal for exiting LTE network；And/or
In the terminal for exiting LTE network during the network of other standards carries out circuit switching (CS) business, institute
It states the LTE network coverage information that MSC is preserved and is sent to the terminal for exiting LTE network.
3. according to the method described in claim 1, it is characterized in that, the terminal for exiting LTE network is according to the LTE network
Coverage information searches for the step of LTE network in the LA for supporting LTE network covering and includes：
The terminal for exiting LTE network obtains the Location Area Identification LAI in the LTE network coverage information, wherein described
LAI is used to indicate the LA for supporting the LTE network covering；
The LTE network whether is supported to cover according to the LA exited residing for the terminal of LTE network described in the LAI of acquisition judgements
Lid；
If the LTE network is supported to cover, the terminal for exiting LTE network is exited described residing for the terminal of LTE network
LA in search for the LTE network.
4. according to the method described in claim 3, it is characterized in that, exiting LTE nets described in judging according to the LAI of acquisition
After whether the LA residing for the terminal of network supports the LTE network to cover, further include：If exiting LTE network described in judging
LA residing for terminal does not support the LTE network to cover, then the terminal for exiting LTE network is supporting the LTE network to cover
Lid and search for the LTE network with described exit in the adjacent LA of the LA residing for the terminal of LTE network.
5. according to claim 1-4 any one of them methods, which is characterized in that the LTE network coverage information is further used
The LTE network whether is supported to cover in the cell on the administered LA of instruction.
6. a kind of search system of LTE network, which is characterized in that including：Terminal, wherein the terminal includes：
Receiving unit, for after LTE network exits, MSC transmissions to be received after the network for entering other standards in the terminal
The MSC LTE network coverage informations of LA administered, wherein the LTE network coverage information, which is used to indicate, is administered
Whether LA supports the LTE network to cover；
Search unit, for searching for LTE nets in the LA for supporting the LTE network covering according to the LTE network coverage information
Network, wherein described search unit is additionally operable to according to the LTE network coverage information in the LA for supporting the LTE network covering
Search for the LTE network；
The terminal for exiting LTE network is additionally operable to judge whether to need to access the LTE network searched；
It is additionally operable to the terminal for exiting LTE network and is linked into the LTE network searched.
7. system according to claim 6, which is characterized in that including：MSC, wherein the MSC includes：
First transmission unit, for carrying out location updating in the network of other standards in the terminal for exiting LTE network
During, the LTE network coverage information that the MSC is preserved is sent to the terminal for exiting LTE network；And/or
Second transmission unit, for carrying out CS business in the network of other standards in the terminal for exiting LTE network
In the process, the LTE network coverage information that the MSC is preserved is sent to the terminal for exiting LTE network.
8. system according to claim 6, which is characterized in that described search unit includes：
Acquisition module, for obtaining the LAI in the LTE network coverage information, wherein the LAI is used to indicate described in support
The LA of LTE network covering；
First judgment module, for whether being propped up according to the LA exited residing for the terminal of LTE network described in the LAI of acquisition judgements
Hold the LTE network covering；
First search module, for judging the LA supports exited residing for the terminal of the LTE network LTE network covering
Afterwards, the LTE network is searched in described exit in the LA residing for the terminal of LTE network.
9. system according to claim 8, which is characterized in that first search module is additionally operable to judging described move back
Go out after the LA residing for the terminal of LTE network do not support the LTE network to cover, support the LTE network covering and with institute
It states to exit in the adjacent LA of the LA residing for the terminal of LTE network and searches for the LTE network.
10. system according to claim 6, which is characterized in that described search unit includes：
Second search module, for when the terminal for exiting LTE network is in Idle state, being covered according to the LTE network
Information searches for the LTE network in the LA for supporting the LTE network covering；
Second judgment module needs to access the LTE nets searched for after searching the LTE network, judging whether
Network；
Processing module, for after judging to need to access the LTE network that searches, by the end for exiting LTE network
End is linked into the LTE network that described search arrives.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110398567.5A CN102413544B (en) | 2011-12-05 | 2011-12-05 | The searching method and system of LTE network |
| PCT/CN2012/077296 WO2013082932A1 (en) | 2011-12-05 | 2012-06-21 | Search method and system for lte network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110398567.5A CN102413544B (en) | 2011-12-05 | 2011-12-05 | The searching method and system of LTE network |
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| CN102413544A CN102413544A (en) | 2012-04-11 |
| CN102413544B true CN102413544B (en) | 2018-08-17 |
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| CN201110398567.5A Active CN102413544B (en) | 2011-12-05 | 2011-12-05 | The searching method and system of LTE network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102413544B (en) * | 2011-12-05 | 2018-08-17 | 南京中兴新软件有限责任公司 | The searching method and system of LTE network |
| CN104284380A (en) * | 2013-07-09 | 2015-01-14 | ***通信集团公司 | Network return method of multi-mode terminal and multi-mode terminal |
| CN103546862A (en) * | 2013-09-30 | 2014-01-29 | 酷派软件技术（深圳）有限公司 | Cloud server, intelligent terminal and method and system for accessing intelligent terminal to LTE (long term evolution) network |
| CN104754695B (en) * | 2013-12-26 | 2019-01-08 | ***通信集团公司 | A kind of method for network access and user equipment |
| CN103906190A (en) * | 2014-04-15 | 2014-07-02 | 宇龙计算机通信科技(深圳)有限公司 | Network search method and device and terminal |
| CN103906189B (en) * | 2014-04-15 | 2017-12-15 | 宇龙计算机通信科技(深圳)有限公司 | Network search method and web search device, terminal |
| CN103906188A (en) * | 2014-04-15 | 2014-07-02 | 宇龙计算机通信科技(深圳)有限公司 | Network search method and device and terminal |
| CN103906195B (en) * | 2014-04-15 | 2018-06-15 | 宇龙计算机通信科技(深圳)有限公司 | Network search method and web search device, terminal |
| CN103906191B (en) * | 2014-04-15 | 2017-12-22 | 宇龙计算机通信科技(深圳)有限公司 | Network search method and web search device, terminal |
| CN105101346A (en) * | 2014-05-21 | 2015-11-25 | 中兴通讯股份有限公司 | Network selection and cell searching method and device while single-card double-standby terminal is powered on |
| US9585065B2 (en) * | 2014-06-03 | 2017-02-28 | Mediatek Inc. | Mobile communications devices and methods for inter-radio access technology performance enhancement |
| CN105338591B (en) * | 2014-08-11 | 2020-11-27 | 中兴通讯股份有限公司 | Method and device for searching high-speed network in high-speed network edge cell |
| CN104899275A (en) * | 2015-05-27 | 2015-09-09 | 深圳市金立通信设备有限公司 | Cell search method and terminal |
| WO2017201694A1 (en) * | 2016-05-25 | 2017-11-30 | 华为技术有限公司 | Csfb implementation method and access network device |
| CN115515206A (en) * | 2016-07-28 | 2022-12-23 | 中兴通讯股份有限公司 | Network searching method based on cloud service, terminal and cloud server |
| CN109565899A (en) * | 2016-08-12 | 2019-04-02 | 华为技术有限公司 | It was found that the method and terminal device of adjacent cell |
| CN110557796B (en) * | 2019-09-17 | 2021-09-10 | 中国联合网络通信集团有限公司 | Method and apparatus for returning to long term evolution network |
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| CN101365249A (en) * | 2008-09-24 | 2009-02-11 | ***电信传输研究所 | Method supporting cross-system residence and switching by multi-mode terminal |
| US8265009B2 (en) * | 2009-10-22 | 2012-09-11 | Cisco Technology, Inc. | Systems and methods for selecting tracking areas and reducing tracking area updates |
| CN101720118B (en) * | 2009-12-15 | 2013-04-24 | 华为技术有限公司 | Method, device and system for network access |
| CN102143555B (en) * | 2010-12-09 | 2014-04-16 | 华为技术有限公司 | Terminal cell search method and relevant equipment and system |
| CN102413544B (en) * | 2011-12-05 | 2018-08-17 | 南京中兴新软件有限责任公司 | The searching method and system of LTE network |
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| WO2013082932A1 (en) | 2013-06-13 |
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