CN105898812A - Fast network return method and device - Google Patents
Fast network return method and device Download PDFInfo
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- CN105898812A CN105898812A CN201610329694.2A CN201610329694A CN105898812A CN 105898812 A CN105898812 A CN 105898812A CN 201610329694 A CN201610329694 A CN 201610329694A CN 105898812 A CN105898812 A CN 105898812A
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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
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a fast network return method and device, used for solving the problems that the failure probability is relatively high and the autonomous FR performance is low when an existing CSFB voice communication is over and an LIE network is returned to. The method comprises the following steps of: storing information of multiple frequency points measured in a first network as first frequency point set information when a terminal is accessed to the first network which does not support a voice service; returning to a second network supporting the voice service in need of initializing the voice service, and obtaining change information for representing the position change of the terminal from the second network; when the change information satisfies a set condition, measuring a received frequency point in the first network, and updating the first frequency point set information; and fast returning to the first network based on the latest stored first frequency point set information after the voice service is over. Therefore, the FR failure problem due to the fact that the frequency point, which a voice service release area belongs to, is not included in the frequency points memorized by the original terminal can be avoided; and thus, the autonomous FR performance is improved.
Description
Technical field
The present invention relates to wireless technical field, particularly relate to the method and device of a kind of quick falling network.
Background technology
LTE (Long Term Evolution, Long Term Evolution) the network full IP of employing (Internet Protocol,
Interconnection protocol) structure, there is not CS (Circuit Switched, circuit switching) territory, to speech business
Supporting Shortcomings, therefore, scheme is just for CSFB (Circuit Switched Fallback, circuit domain rollback)
Arise at the historic moment.
CSFB is a kind of working method singly treated, preferably resides in LTE network after starting up of terminal, when there being language
Fall back to 2G/3G circuit domain by CSFB technology during sound business perform, after speech business terminates, then pass through
Technology quickly returns LTE network to FR (Fast Return quickly falls after rise), and data service is without falling after rise,
The most not only can realize the seriality of speech business, moreover it is possible to realize the seriality of data service.
When terminal returns LTE network by autonomous FR flow process, the LTE frequency point number needing search is the fewest, and
Searched for frequency with its residing for community and adjacent area frequency the most identical, then FR function is the most excellent, returns the fastest.Cause
This, how with minimum cost obtain closer to FR return to the pass that frequency point information is autonomous FR function
Key place.
Present in prior art, a solution is, as it is shown in figure 1, at CSFB voice call process
In, terminal periodic measures the LTE frequency point in broadcast one by one, when hanging up according to speech business nearest one
Secondary measurement result, it is judged that whether measure suitable LTE community at the end of speech business, if there is meeting
The LTE community of condition, then trigger certainly after network side issues Channel Release (channel release) message
Main FR flow process, uses the LTE frequency point information meeting condition recorded before this to attempt being back to the LTE of correspondence
Community;If not having the LTE community being suitable for resident after Channel Release message, or touch at FR
Return the failure of LTE community after Faing, then the persistent district being still in original CSFB business is resident.
In this solution, in CSFB communication process, terminal periodic measures LTE frequency point one by one, this
Periodically, the LTE frequency point frequently carried out measures the consumption that not only can increase terminal power;If CSFB it
The rear terminal call time is the shortest, or very short time abnormal release, then may have little time to carry out LTE frequency point survey
Measure or do not measure effective LTE frequency point, causing autonomous FR failure.
Present in prior art, another kind of solution is, as in figure 2 it is shown, tie in CSFB speech business
Shu Shi, after network issues Channel Release message terminal according to this pre-test to and preserve once
Through the LTE subdistrict frequency point information of resident mistake, attempt triggering autonomous FR and return to LTE community.If in regulation
Suitable LTE community is measured, it tries access LTE community in time;If attempting accessing LTE community
Failure, or fail to measure suitable LTE community, then it is still in former CSFB business persistent district resident.
In this solution, autonomous FR frequency depends on the memory frequency of passing accumulation, it is impossible to the most anti-
Presenting situation nearby, FR depends on frequency search after triggering, if LTE belonging to speech business release areas is little
District is not included in the LTE frequency point of terminal memory, then can FR failure;If the LTE frequency point of terminal memory
Too much, it is stipulated that time in possibly all LTE frequency point cannot be carried out frequency sweep, cause FR failure, and
Along with existing network LTE frequency point disposes the increase of quantity, this risk by memory frequency search community can be gradually
Increase, cause FR probability of failure to increase.
Summary of the invention
The embodiment of the present invention provides the method and device of a kind of quick falling network, to solve existing CSFB
At the end of voice call, fall after rise to probability of failure during LIE network relatively big, the problem of autonomous FR degraded performance.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
First aspect, the embodiment of the present invention provides a kind of method of quick falling network, including:
Terminal, when being linked into the first network not supporting speech business, will be under described first network measurement
The multiple frequency point information arrived preserve as the first frequency collection information;
Described terminal is when speech business initiated by needs, based on CSFB mode rollback to supporting speech business
Second network, and in described second network, obtain the change information for characterizing the change of described terminal location;
Described terminal is when described change information meets and imposes a condition, when described terminal is in the second network
Frequency in the first network receive described terminal measures, and based on measuring the result obtained to institute
First frequency collection information of stating is updated;
Described terminal is at the end of speech business, and the first frequency collection information FR based on up-to-date preservation is to described
First network.
Due to, terminal, after first network CSFB to second network, is switched by community or pilot signal
Signal intensity difference judge whether terminal there occurs large-scale change in location, there occurs on a large scale
The frequency starting first network during change in location is measured, and enters the frequency point information of the first network that terminal preserves
Row updates, and ensures that the frequency point information of the first network of the up-to-date preservation of terminal discharges in speech business with terminal as far as possible
Time residing first network subdistrict frequency point consistent or close, it is to avoid occur belonging to speech business release areas
FR failure is caused time in the frequency of the first network that the subdistrict frequency point of first network is not included in terminal memory
Problem.
On the basis of first aspect, optionally, described change information includes:
There is the information of community switching in described terminal;And/or
The Serving cell at described terminal place signal intensity difference in setting duration.
On the basis of first aspect, optionally, described terminal change information meet impose a condition time,
Frequency in first network when described terminal is in the second network received described terminal measures,
And based on measuring the result obtained, described first frequency collection information is updated, including:
When there is community switching in described terminal or the Serving cell at place is at the signal intensity set in duration
When difference exceedes predetermined threshold value, first described terminal received when described terminal is in the second network
Frequency in network measures, and multiple frequency point information measurement obtained are as the second frequency collection information
Described first frequency point information preserved is updated to described second frequency point information by described terminal.
On the basis of first aspect, optionally, described terminal is at the end of speech business, based on up-to-date guarantor
The the first frequency collection information deposited quickly falls FR after rise to described first network, including:
Described terminal, at the end of speech business, is determined in the described first frequency collection information of up-to-date preservation
Meet pre-conditioned frequency, and based on a determination that the frequency gone out is attempted quickly falling FR after rise to described first network.
On the basis of first aspect, optionally, described signal intensity difference be signal quality variation difference or
Signal level variation difference.
Second aspect, it is provided that the device of a kind of quick falling network, described device is applied to terminal, including:
Memory element, for when being linked into the first network not supporting speech business, will be in described first
The multiple frequency point information measured under network preserve as the first frequency collection information;
Acquiring unit, for when speech business initiated by needs, based on CSFB mode rollback to supporting voice
Second network of business, and in described second network, obtain the change for characterizing the change of described terminal location
Information;
Measuring unit, for when described change information meets and imposes a condition, being in the second net in described terminal
Frequency in first network time in network received described terminal measures, and the knot obtained based on measurement
Described first frequency collection information is updated by fruit;
Processing unit, is used at the end of speech business, the first frequency collection information FR based on up-to-date preservation
To described first network.
On the basis of second aspect, optionally, described change information includes:
There is the information of community switching in described terminal;And/or
The Serving cell at described terminal place signal intensity difference in setting duration.
On the basis of second aspect, optionally, described measuring unit change information meet impose a condition time,
Frequency in the first network received described terminal when described terminal is in the second network is surveyed
Amount, and when described first frequency collection information is updated by the result obtained based on measurement, specifically for:
When there is community switching or the Serving cell at place exceedes in the signal intensity difference set in duration
During predetermined threshold value, in the first network described terminal received when described terminal is in the second network
Frequency measures, and multiple frequency point information measurement obtained are as the second frequency collection information
Described first frequency point information preserved is updated to described second frequency point information.
On the basis of second aspect, optionally, described processing unit is at the end of speech business, based on
When new the first frequency collection information FR preserved is to described first network, specifically for:
At the end of speech business, determine in the described first frequency collection information of up-to-date preservation meet default
The frequency of condition, and based on a determination that the frequency gone out is attempted quickly falling FR after rise to described first network.
On the basis of second aspect, optionally, described signal intensity difference be signal quality variation difference or
Signal level variation difference.
The third aspect, it is provided that a kind of terminal, including
Memorizer, have program stored therein in described memorizer instruction;
At least one processor, is used for performing described programmed instruction;
Described programmed instruction includes:
When being linked into the first network not supporting speech business, will be under described first network what measurement was arrived
Multiple frequency point information preserve as the first frequency collection information;
When speech business initiated by needs, the second network based on CSFB mode rollback to support speech business,
And in described second network, obtain the change information for characterizing the change of described terminal location;
When described change information meets and imposes a condition, when described terminal is in the second network to described end
Frequency in the first network that termination receives measures, and based on measuring the result obtained to described first frequency
Point set information is updated;
At the end of speech business, the first frequency collection information FR based on up-to-date preservation is to described first network.
Thering is provided the scheme of a kind of quick falling network in the embodiment of the present invention, the method is that terminal is being linked into not
When supporting the first network of speech business, multiple frequency point information of measuring under first network will be in as the
One frequency collection information preserves;When speech business initiated by needs, the second network of rollback to support speech business,
And obtain the change information for characterizing the change of described terminal location in the second network;At described change information
Meet when imposing a condition, the frequency in the first network received is measured, to the first frequency collection information
It is updated;At the end of speech business, the first frequency collection information FR based on up-to-date preservation is to the first net
Network, in such manner, it is possible to avoid the frequency belonging to speech business release areas to be not included in the frequency of former terminal memory
Inside cause problem failed for FR, improve autonomous FR performance;Avoid terminal during carrying out speech business
Frequently initiate the measurement of the subdistrict frequency point of first network, reduce the consumption of terminal power.
Accompanying drawing explanation
Fig. 1 be in prior art a kind of FR to the process schematic of LTE network;
Fig. 2 be in prior art a kind of FR to the process schematic of LTE network;
Fig. 3 is the signaling process figure that terminal initiates CSFB caller;
Fig. 4 is the signaling process figure that terminal receives CSFB caller;
Fig. 5 is the method flow diagram quickly falling network in the embodiment of the present invention after rise;
Fig. 6 is the method flow diagram quickly falling LTE network in the embodiment of the present invention from 2G/3G network after rise;
Fig. 7 is the apparatus structure schematic diagram quickly falling network in the embodiment of the present invention after rise;
Fig. 8 is the terminal structure schematic diagram in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present invention, is not
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
The embodiment of the present invention provides the method and device of a kind of quick falling network, to solve existing CSFB
At the end of voice call, fall after rise to probability of failure during LIE network relatively big, the problem of autonomous FR degraded performance.
Wherein, method and apparatus is based on same inventive concept, owing to method and device solves the principle phase of problem
Seemingly, therefore the enforcement of apparatus and method can repeat no more in place of repetition with cross-reference.
Below in conjunction with the accompanying drawings embodiments of the present invention are described in detail.
As a example by LTE system, LTE is mono-after terminal is attached to LTE network, resides in LTE network,
Cannot transmission circuit territory service signal so that terminal LTE network access under can initiate voice etc.
CS business and receive the paging of the CS business such as voice, uses CSFB technology, i.e. LTE network to cover
Terminal under Gai is when processing speech business, and terminal first return back to CS territory network, in CS territory network processes
Speech business, returns again to LTE network after service ending.Detailed process, see shown in Fig. 3.
See Fig. 3, Fig. 3 and show the signaling process figure of terminal initiation CSFB caller.
S31: terminal passes through eNodeB to MME (Mobility Management Entity, mobile management
Entity) send ESR (request of Extended Service Request expansion service) message, this ESR message
In comprise CSFB instruction.
After S32:MME receives ESR message, send S1-AP (S1Application to eNodeB
Protocol, S1 Application Part agreement) ask message to eNodeB, this message comprises CS Fallback
Indicator (instruction of circuit domain rollback), is used for indicating eNodeB, and terminal is because of CS Fallback service needed
Fall back to UTRAN (Evolved Universal Terrestrial Radio Access Network, leading to of evolution
With terrestrial access network)/GERAN (SM EDGE Radio Access Network, GSM (Global
System for Mobile communication, global system for mobile communications)/EDGE (Enhanced Data
Rate for GSM Evolution, enhanced data rates for gsm evolution technology) wireless access network).
S33:eNodeB sends RRC (Radio Resource Control, wireless heterogeneous networks) to terminal
Connection release message, it is desirable to terminal starts the cell measurement of different system, and obtain the measurement report of terminal to report,
Determine the target system cells of redirection.Then send, to terminal, the radio configuration information that goal systems is concrete,
And discharge RRC connection.
S34: terminal accesses target system cells, initiates the CM service request (CM in CS territory
(Connection Management, connection management) service request).
S35: if MSC (Mobile Switching Center, the mobile switch of target system cells ownership
Center) with terminal attachment EPS (Evolved Packet System, the grouping system of evolution) network time step on
The MSC of note is different, then when this MSC receives the CM service request of terminal, owing to this is not eventually
The information of end, can take implicit location more new technological process, accepts user's request.If MSC does not support hidden
Formula location updating, and MSC do not have user data (i.e. service MSC Yu EPS/IMSI (International
Mobile Subscriber Identification Number, international mobile subscriber identity) MSC that registers is not
With), then refuse the CM service request of this user.If the CM service of MSC refusal user
Request can cause terminal to initiate a CS territory position update flow.
S36:CS territory audio call Establishing process.
See Fig. 4, Fig. 4 to show terminal and receive signaling process figure called for CSFB.
S41:MSC receives IAM (Initial Address Message, the initial address that calling terminal sends
Message) after, according to the SGs association existed and MME information, send paging request message, such as, send
SGsAP-PAGING-REQUEST message (carries IMSI, TMSI (Temporary Mobile
Subscriber Identity, interim identity), Service indicator (service instruction), calling number,
Location area information) message is to MME.
S42:MME sends the Paging that Paging (paging) message is initiated to eat dishes without rice or wine to eNodeB, eNodeB
Flow process.
S43: terminal is set up and is connected and send ESR message to MME.
S44:MME sends SGsAP-SERVICE-REQUEST message to MSC.MSC receives this
Message, no longer retransmits paging request message to MME.For avoiding in call-connection process, calling terminal etc.
Treat that overlong time, MSC receive the SGs Service Request message comprising Idle state instruction, first notify main
Being terminal, calling is just in handshaking procedure.
S45:MME sends Initial UE Context Setup (foundation of initial terminal context) message and gives
ENodeB, comprises CS Fallback Indicator in this message.For indicating eNodeB, terminal is because of CS
Fallback service needed falls back to UTRAN/GERAN.
S46: terminal is switched to UTRAN/GERAN from E-UTRAN.
S47: along with eating dishes without rice or wine, A/Iu-CS interface establishment of connection, terminal returns paging response and (seeks
Exhale response) message is to MSC.Even if RNC did not initiated paging request to this terminal, RNC here
Need the page response of energy processing terminal.If the location area information in page-response message and VLR
Preserve in (Visitor Location Register, VLR Visitor Location Register) is inconsistent, then VLR is at mirror
After weighing successfully, SGs association is set to NULL (empty).
After S48:MSC receives the page-response message of terminal, cut off page response intervalometer and set up CS
Connect.
The embodiment of the present invention applies autonomous FR after terminal carries out speech business by CSFB rollback to CS territory
To the scene of LTE network, voice call process obtains after CSFB the change in location information of terminal,
Change in location information based on terminal determines whether to trigger the measurement to LTE frequency point, promotes having of frequency measurement
Effect property, reduces measurement unnecessary, LTE frequency point frequently, promotes fast to LTE network of autonomous FR
Speed and accuracy, reduce terminal power consumption further.
Shown in Figure 5, Fig. 5 is the method flow diagram quickly falling network in the embodiment of the present invention after rise, specifically
Process is:
Step 500: terminal, when being linked into the first network not supporting speech business, will be in described first
The multiple frequency point information measured under network preserve as the first frequency collection information.
Optionally, described first network is LTE network.
Step 501: described terminal is when speech business initiated by needs, based on CSFB mode rollback to supporting
Second network of speech business, and obtain in described second network for characterizing the change of described terminal location
Change information.
Optionally, described second network is UTRAN network or GERAN network.
Described change information includes: described terminal occurs the information of community switching;And/or described terminal place
Serving cell signal intensity difference in setting duration.Wherein, described signal intensity difference is signal quality
Change difference or signal level variation difference.
Step 502: described terminal, when described change information meets and imposes a condition, is in the in described terminal
Frequency in first network time in two networks received described terminal measures, and obtains based on measurement
Result described first frequency collection information is updated.
Concrete, described terminal, when change information meets and imposes a condition, is in the second network in described terminal
Frequency in first network time middle received described terminal measures, and the result obtained based on measurement
Being updated described first frequency collection information, detailed process is:
When there is community switching in described terminal or the Serving cell at place is at the signal intensity set in duration
When difference exceedes predetermined threshold value, first described terminal received when described terminal is in the second network
Frequency in network measures, and multiple frequency point information measurement obtained are as the second frequency collection information
Described first frequency point information preserved is updated to described second frequency point information by described terminal.
Step 503: described terminal at the end of speech business, the first frequency collection information based on up-to-date preservation
FR is to described first network.
Concrete, described terminal is at the end of speech business, and the first frequency collection information based on up-to-date preservation is fast
Speed falls FR after rise:
Described terminal, at the end of speech business, is determined in the described first frequency collection information of up-to-date preservation
Meet pre-conditioned frequency, and based on a determination that the frequency gone out attempts FR to described first network.
In the present embodiment, terminal, after first network CSFB to second network, is switched by community or leads
Frequently the signal intensity difference of signal judges whether terminal there occurs large-scale change in location, big there occurs
The frequency starting first network during the change in location of scope is measured, and the frequency to the first network that terminal preserves
Information is updated, and the frequency point information of the first network ensureing the up-to-date preservation of terminal of trying one's best and terminal are in voice industry
The subdistrict frequency point of first network residing during business release is consistent or close, it is to avoid speech business release areas occur
FR is caused time in the frequency of the first network that the subdistrict frequency point of affiliated first network is not included in terminal memory
Failed problem;Avoid terminal frequent subdistrict frequency point initiating first network during carrying out speech business
Measure, reduce the consumption of terminal power, especially remain stationary as in communication process as user or by a small margin
Time mobile;Even if the air time is the shortest after terminal CSFB, or very short time abnormal release, have little time
The frequency carrying out first network is measured, and the frequency point information of the first network preserved before CSFB still can be done certainly
Main FR triggers FR to first network;The frequency number avoiding the first network of terminal accumulation memory is too much, contracting
Short frequency sweep flow process, increases the autonomous FR probability of success;Be conducive to reducing speech business process and carry out data simultaneously
Business, the data traffic quality introduced during measuring because of the frequency of first network reduces probability.
Below with first network as LTE network, the second network be 2G (the second generation,
Secondary mobile communication technology) network or 3G (the third generation, G mobile communication) net
Describing the method quickly falling network after rise in Fig. 5 as a example by network in detail, idiographic flow is with reference to shown in Fig. 6.
Step 61: terminal is when LTE community is resident, by electric by reference signal for the LTE frequency point information measured
Flat or quality size order (desirable N number of, N is positive integer) also enters as the first LTE frequency point collection information
Row preserves.
Step 62: when terminal initiates CSFB calling procedure, the MME of terminal transmission ESR message to network side,
This ESR message comprises CSFB instruction, triggers network side and initiate CSFB Service Request (CSFB
Service request) flow process, make terminal fall back to 2G or 3G community and carry out speech business.
Step 63: terminal obtains the change letter for characterizing the change of described terminal location in voice call process
Breath.
Concrete, whether terminal judges there occurs that (it is little from one that connected state lower network controls terminal in community switching
District enters the behavior of another community), or pilot tone measured under current resident 2G or 3G Serving cell
Whether signal intensity difference exceedes preset value, judges whether terminal has carried out large-scale change in location with this,
Thus decide whether that the reference signal initiating LTE frequency point is measured.
In a kind of optional embodiment, what signal intensity difference exceeded predetermined threshold value can be by following mistake
Journey judges:
S1, the pilot signal level value returning to measurement in 2G or 3G voice call process based on terminal or matter
Value, averages in the time period at Δ T (3 pilot signal measurement durations the most altogether);
S2, based on anchor point value M1 based on above-mentioned meansigma methods, and set a certain as the threshold value compared
Threshold, the difference one if within the Δ t time, between measured signal mass M and basis anchor point value M1
Straight more than or equal to this comparison threshold value threshold, start the reference signal to LTE frequency point the most immediately and measure;
S3, the reference signal of LTE frequency point are measured after starting, and above-mentioned basis anchor point value M1 remeasures and counts
Calculate, repeat the judgement flow process of above-mentioned S1-S2.
Step 64: if terminal judges to there occurs that community switches in communication process, then perform step 66;
Otherwise, step 63 is continued executing with.
Step 65: if the signal intensity difference of the pilot signal of terminal measurement has exceeded the threshold value preset,
Then perform step 66;Otherwise, step 63 is continued executing with.
Step 66: start the reference signal to LTE frequency point and measure, by the LTE frequency point information measured by joining
Examine signal level or quality size order (desirable N number of, N is positive integer) and as the second LTE frequency point
Collection information preserves.
Step 67: by above-mentioned second LTE frequency point collection information, with the first LTE frequency point information preserved before this
Compare, if unanimously, be not updated, continue executing with step 69;If inconsistent, perform step
68.
Step 68: be updated being the 2nd LIE frequency collection information to the first LTE frequency point information preserved.
Step 69: at the end of speech business, terminal the first LTE frequency point collection information based on up-to-date preservation,
Deciding whether that initiating autonomous FR flow process returns to LTE network, if initiating FR flow process, then issuing in base station
After CHANNEL_RELEASE (channel release) message (release 2G or 3G channel), preferentially utilize
First LTE frequency point collection information of up-to-date preservation, first search or return on the community of these LTE frequency point.
Thus avoid the occurrence of LTE community belonging to speech business release areas and be not included in the LTE frequency point of terminal memory
Inside cause problem failed for FR, it is to avoid terminal frequently initiates LTE community frequency during carrying out speech business
The measurement of point, reduces the consumption of terminal power.
The method quickly falling network after rise provided based on above-described embodiment, with reference to shown in Fig. 7, the present invention implements
Example provides the device 700 of a kind of quick falling network, and this device 700 is applied to terminal, and Fig. 7 show this
The structural representation of the device 700 that inventive embodiments provides, as it is shown in fig. 7, this device 700 includes storage
Unit 701, acquiring unit 702, measuring unit 703 and processing unit 704, wherein:
Memory element 701, for when being linked into the first network not supporting speech business, will be in described
The multiple frequency point information measured under first network preserve as the first frequency collection information;
Acquiring unit 702, for when speech business initiated by needs, based on CSFB mode rollback to supporting
Second network of speech business, and obtain in described second network for characterizing the change of described terminal location
Change information;
Measuring unit 703, for when described change information meets and imposes a condition, being in the in described terminal
Frequency in first network time in two networks received described terminal measures, and obtains based on measurement
Result described first frequency collection information is updated;
Processing unit 704, is used at the end of speech business, the first frequency collection information based on up-to-date preservation
FR is to described first network.
Optionally, described change information includes:
There is the information of community switching in described terminal;And/or
The Serving cell at described terminal place signal intensity difference in setting duration.
Optionally, described measuring unit 703, when change information meets and imposes a condition, is in described terminal
Frequency in first network time in second network received described terminal measures, and based on measuring
To result described first frequency collection information is updated time, specifically for:
When there is community switching or the Serving cell at place exceedes in the signal intensity difference set in duration
During predetermined threshold value, in the first network described terminal received when described terminal is in the second network
Frequency measures, and multiple frequency point information measurement obtained are as the second frequency collection information.
Described first frequency point information preserved is updated to described second frequency point information.
Optionally, described processing unit 704 at the end of speech business, the first frequency based on up-to-date preservation
When collection information quickly falls FR after rise to described first network, specifically for:
At the end of speech business, determine in the described first frequency collection information of up-to-date preservation meet default
The frequency of condition, and based on a determination that the frequency gone out is attempted quickly falling FR after rise to described first network.
Optionally, described signal intensity difference is signal quality variation difference or signal level variation difference.
The above-mentioned device 700 related to of the embodiment of the present invention, can be independent parts, it is also possible to be integrated with
In miscellaneous part, the said apparatus 700 that such as embodiment of the present invention provides can be in existing communication network
Terminal, it is also possible to the parts being integrated with in terminal.
It should be noted that the functional realiey of the unit of device 700 in the embodiment of the present invention and friendship
Mode can not repeat them here with further reference to the description of related method embodiment mutually.
It addition, above each " unit " can pass through ASIC (application-specific
Integrated circuit, ASIC), perform one or more software or the processor of firmware program and memorizer,
Integrated logic circuit, and/or other can provide the device of above-mentioned functions to realize.
Based on same inventive concept, with reference to shown in Fig. 8, the embodiment of the present invention provides a kind of terminal 800, figure
8 structural representations showing the terminal 800 that the embodiment of the present invention provides, as shown in Figure 8, terminal 800
Including processor 801 and memorizer 802, the program code performing the present invention program is saved in memorizer 802
In, and controlled to perform by processor 801.
In memorizer 802, the program of storage performs the method quickly falling network after rise for instruction processing unit 801,
Including: when terminal is linked into the first network not supporting speech business, survey will be under described first network
The multiple frequency point information measured are saved in described memorizer 802 as the first frequency collection information;Need in terminal
During speech business to be initiated, the second network based on CSFB mode rollback to support speech business, and in institute
State the change information obtained in the second network for characterizing the change of described terminal location;Full at described change information
When foot imposes a condition, in the first network described terminal received when described terminal is in the second network
Frequency measure, and based on measuring the result that obtains, described first frequency collection information is updated;?
At the end of speech business, the first frequency collection information FR based on up-to-date preservation is to described first network.
Optionally, described change information includes:
There is the information of community switching in described terminal;And/or
The Serving cell at described terminal place signal intensity difference in setting duration.
Optionally, described processor, specifically for:
When there is community switching or the Serving cell at place exceedes in the signal intensity difference set in duration
During predetermined threshold value, in the first network described terminal received when described terminal is in the second network
Frequency measures, and multiple frequency point information measurement obtained are as the second frequency collection information
Described first frequency point information preserved is updated to described second frequency point information.
Optionally, described processor, specifically for:
At the end of speech business, determine in the described first frequency collection information of up-to-date preservation meet default
The frequency of condition, and based on a determination that the frequency gone out attempts FR to described first network.
It is understood that the terminal 800 of the present embodiment can be used for realizing relating in said method embodiment Fig. 5
And all functions of terminal, it implements process and is referred to terminal execution method in said method embodiment
Associated description, here is omitted.
It is understood that the processor 801 related in the above-mentioned terminal of the embodiment of the present invention 800 can be one
Individual general central processor (CPU), microprocessor, ASIC, or one or more use
In controlling the integrated circuit that the present invention program program performs.One or more storages that computer system includes
Device, can be that read only memory (read-only memory, ROM) maybe can store static information and instruction
Other kinds of static storage device, random access memory (random access memory, RAM)
Or the other kinds of dynamic memory of information and instruction can be stored, it is also possible to be disk memory.This
A little memorizeies are connected with processor by bus.
Memorizer 802, such as RAM, preserves operating system and performs the program of the present invention program.Operation system
System is for controlling the operation of other programs, the program of management system resource.
These memorizeies 802 can be connected with processor 801 by bus, or can also be by special
Connecting line be connected with processor 801 respectively.
By processor 801 being designed programming, by right for the method institute shown in embodiment of the present invention Fig. 5
The code answered is cured in chip, so that chip is operationally able to carry out the method shown in Fig. 5.How
It is designed being programmed for technology known in those skilled in the art to processor 801, repeats no more here.
In sum, in the embodiment of the present invention, terminal is when being linked into the first network not supporting speech business,
Preserve being in the multiple frequency point information measured under first network as the first frequency collection information;Send out at needs
When playing speech business, the second network of rollback to support speech business, and obtain in the second network for table
Levy the change information of described terminal location change;When described change information meets and imposes a condition, to receiving
First network in frequency measure, the first frequency collection information is updated;Terminate in speech business
Time, the first frequency collection information FR based on up-to-date preservation is to first network, in such manner, it is possible to avoid voice industry
Business frequency belonging to release areas causes problem failed for FR in being not included in the frequency of former terminal memory, carries
High autonomous FR performance.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot
The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more
Computer-usable storage medium containing computer usable program code (include but not limited to disk memory,
CD-ROM, optical memory etc.) form of the upper computer program implemented.
The present invention is with reference to method, equipment (system) and computer program product according to embodiments of the present invention
The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/
Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding
The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating
The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one
The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set
In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory
Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart
The function specified in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes
Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices
Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one
The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know base
This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted
Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not take off
Spirit and scope from the embodiment of the present invention.So, if these amendments of the embodiment of the present invention and modification belong to
Within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention be also intended to comprise these change and
Including modification.
Claims (11)
1. the method for a quick falling network, it is characterised in that including:
Terminal, when being linked into the first network not supporting speech business, will be under described first network measurement
The multiple frequency point information arrived preserve as the first frequency collection information;
Described terminal is when speech business initiated by needs, based on circuit domain rollback CSFB mode rollback to supporting
Second network of speech business, and obtain in described second network for characterizing the change of described terminal location
Change information;
Described terminal is when described change information meets and imposes a condition, when described terminal is in the second network
Frequency in the first network receive described terminal measures, and based on measuring the result obtained to institute
First frequency collection information of stating is updated;
Described terminal is at the end of speech business, and the first frequency collection information based on up-to-date preservation quickly falls after rise
FR is to described first network.
2. the method for claim 1, it is characterised in that described change information includes:
There is the information of community switching in described terminal;And/or
The Serving cell at described terminal place signal intensity difference in setting duration.
3. method as claimed in claim 2, it is characterised in that described terminal meets at change information and sets
Frequency during fixed condition, in the first network described terminal received when described terminal is in the second network
Point measures, and is updated described first frequency collection information based on measuring the result obtained, including:
When there is community switching in described terminal or the Serving cell at place is at the signal intensity set in duration
When difference exceedes predetermined threshold value, first described terminal received when described terminal is in the second network
Frequency in network measures, and multiple frequency point information measurement obtained are as the second frequency collection information
Described first frequency point information preserved is updated to described second frequency point information by described terminal.
4. the method for claim 1, it is characterised in that described terminal at the end of speech business,
The first frequency collection information FR based on up-to-date preservation to described first network, including:
Described terminal, at the end of speech business, is determined in the described first frequency collection information of up-to-date preservation
Meet pre-conditioned frequency, and based on a determination that the frequency gone out attempts FR to described first network.
5. method as claimed in claim 3, it is characterised in that described signal intensity difference is signal matter
Amount change difference or signal level variation difference.
6. the device of a quick falling network, it is characterised in that be applied to terminal, including:
Memory element, for when being linked into the first network not supporting speech business, will be in described first
The multiple frequency point information measured under network preserve as the first frequency collection information;
Acquiring unit, for when speech business initiated by needs, based on circuit domain rollback CSFB mode rollback
To the second network of support speech business, and acquisition is used for characterizing described terminal location in described second network
The change information of change;
Measuring unit, for when described change information meets and imposes a condition, being in the second net in described terminal
Frequency in first network time in network received described terminal measures, and the knot obtained based on measurement
Described first frequency collection information is updated by fruit;
Processing unit, at the end of speech business, the first frequency collection information based on up-to-date preservation is quick
Fall FR after rise to described first network.
7. device as claimed in claim 6, it is characterised in that described change information includes:
There is the information of community switching in described terminal;And/or
The Serving cell at described terminal place signal intensity difference in setting duration.
8. device as claimed in claim 7, it is characterised in that described measuring unit is full at change information
When foot imposes a condition, in the first network described terminal received when described terminal is in the second network
Frequency measure, and based on measure the result that obtains described first frequency collection information is updated time,
Specifically for:
When there is community switching or the Serving cell at place exceedes in the signal intensity difference set in duration
During predetermined threshold value, in the first network described terminal received when described terminal is in the second network
Frequency measures, and multiple frequency point information measurement obtained are as the second frequency collection information
Described first frequency point information preserved is updated to described second frequency point information.
9. device as claimed in claim 6, it is characterised in that described processing unit is tied in speech business
Shu Shi, when the first frequency collection information FR based on up-to-date preservation is to described first network, specifically for:
At the end of speech business, determine in the described first frequency collection information of up-to-date preservation meet default
The frequency of condition, and based on a determination that the frequency gone out attempts FR to described first network.
10. device as claimed in claim 8, it is characterised in that described signal intensity difference is signal matter
Amount change difference or signal level variation difference.
11. 1 kinds of terminals, it is characterised in that include
Memorizer, have program stored therein in described memorizer instruction;
At least one processor, is used for performing described programmed instruction;
Described programmed instruction includes:
When being linked into the first network not supporting speech business, will be under described first network what measurement was arrived
Multiple frequency point information preserve as the first frequency collection information;
When speech business initiated by needs, based on circuit domain rollback CSFB mode rollback to supporting speech business
The second network, and in described second network obtain for characterize described terminal location change change information;
When described change information meets and imposes a condition, when described terminal is in the second network to described end
Frequency in the first network that termination receives measures, and based on measuring the result obtained to described first frequency
Point set information is updated;
At the end of speech business, the first frequency collection information based on up-to-date preservation quickly falls FR after rise to described
First network.
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