CN103906191B

CN103906191B - Network search method and web search device, terminal

Info

Publication number: CN103906191B
Application number: CN201410151833.8A
Authority: CN
Inventors: 李伟清; 黄育盛; 孙振飞
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2014-04-15
Filing date: 2014-04-15
Publication date: 2017-12-22
Anticipated expiration: 2034-04-15
Also published as: WO2015158039A1; CN103906191A

Abstract

The invention provides a kind of network search method, including：Terminal is from first network off-grid or has not yet registered to the first network, and resides in the second network；When the variable quantity of terminal signal intensity of corresponding serving cell and/or adjacent cell in second network is more than or equal to default variable quantity, the terminal performs the search operation to the first network.The present invention also proposes corresponding web search device and terminal.Pass through technical scheme, according to the change in location situation of terminal, the web search frequency and/or number of terminal can either be controlled, and avoiding frequently blindly searching net causes the waste of power consumption of terminal, and can enough helps terminal to access particular network as early as possible, helps to lift Consumer's Experience.

Description

Network search method and web search device, terminal

Technical field

The present invention relates to wireless communication technology field, in particular to a kind of network search method, a kind of web search Device and a kind of terminal.

Background technology

The communications field enters the 4G epoch, and whole network framework has a very big change compared with 2G/3G, and voice service As the most basic and most important demand of wireless telecommunications, how to realize in 4G, brought not to Virtual network operator and terminal business Small trouble, major chip manufacturer and 3GPP tissues propose different solutions for operator's selection, main bag at this stage Include single-card double-standby scheme（SGLTE/SVLTE）, circuit domain dropping scheme（CSFB）, SRVCC/VOLTE, wherein SVLTE （Simultaneous Voice and LTE, LTE is synchronous with voice network to be supported）Single-card double-standby scheme has no special requirements to network, Network side change is small, it is not necessary to disposes IMS, enjoys Domestic Carriers to favor.

Seamless coverage, or even operator are not reached also for cost in 4G networking initial stage, the 4G network coverages at this stage Consider to take Regional covering in some cities and area, this certainly exists 4G off-grid problems for mobile terminal.

As shown in Figure 1, it is assumed that in Fig. 1（a）In, UE is in 3G and 4G networks double standby or singly treats 4G networks；When UE leaves 4G nets During network overlay area, 4G network off-grids can be caused, so as into Fig. 1（b）Shown situation, that is, it is connected to 2G and 3G nets Network, or when UE leaves 4G and 3G network overlay area, possibly into Fig. 1（c）Shown situation, that is, it is only connected to 2G nets Network；And when UE is come back under 4G networks, such as Fig. 1（d）Shown, user is it is clearly desirable that 4G networks can quickly be returned to, but go out In the consideration to power consumption of terminal, it is clear that UE can not be caused ceaselessly to attempt search and access operation to 4G networks always.

Therefore, how to avoid UE electricity caused by blindly searching net from wasting, enable to UE to access particular network as early as possible again（Such as 4G networks）, turn into technical problem urgently to be resolved hurrily at present.

The content of the invention

The present invention is based on above mentioned problem, it is proposed that a kind of new technical scheme, can be according to the change in location of terminal Situation, the web search frequency and/or number of terminal can either be controlled, avoiding frequently blindly searching net causes the wave of power consumption of terminal Take, and can enough helps terminal to access particular network as early as possible, helps to lift Consumer's Experience.

In view of this, the present invention proposes a kind of network search method, including：Terminal is from first network off-grid or not yet notes Volume resides in the second network to the first network；When the terminal in second network corresponding serving cell and/ Or the variable quantity of the signal intensity of adjacent cell, when being more than or equal to default variable quantity, the terminal is performed to the first network Search operation.

,, can be by residing in second after terminal is from first network off-grid for multimode terminal in the technical scheme Network, to ensure the continuity of communication.In the second network, because terminal is necessarily connected to neighbouring cell so that pass through Solve the situation of change of terminal signal intensity of corresponding serving cell and/or adjacent cell in the second network, it becomes possible to directly Reflect change in location situation of the terminal under the second network, i.e. the change of the signal intensity of serving cell and/or adjacent cell must Be due to so terminal change in location caused by, and the change in location of relatively large distance most probably occurs for terminal.Or the application Technical scheme be also applied for other scenes, such as terminal do not cover started shooting in the region of first network when, can note first Volume combines the above-mentioned search operation based on change in location to the second network, it is ensured that terminal fast search to the same of first network When, avoid blindly searching net, help to reduce power consumption of terminal.

Therefore, when change in location caused by terminal is more than or equal to predetermined value, terminal is highly likely to enter/reentered The overlay area of one network, then now both added by performing the search operation to first network and searched net success rate, and can is enough Avoiding blindness from searching net causes the power consumption of terminal to increase, and helps to extend the stand-by time of terminal.

Wherein, first network and the second network can be the different mobile radio networks of any two, such as Base station under same position, the coverage of first network are likely less than the coverage of the second network.It is more specific and preferred Ground, such as first network can be 4G networks（Such as LTE）, and the second network can be 2G networks（Such as GSM, GPRS, EDGE CDMA1X etc.）Or 3G network（Such as CDMA2000, TD-SCDMA/TD-HSPA, WCDMA/HSPA）.2G/3G networks are because layout Time is early, the network optimization is perfect, so generally its network coverage is than the large and complete face of 4G networks that was laid out later, therefore 4G takes off The situation of net and 2G/3G not off-grid easily occurs in some regions.

In the above-mentioned technical solutions, it is preferable that also include：When the company of the search operation of first network described in the terminal-pair When the continuous frequency of failure is more than or equal to preset times, the terminal stop variable quantity of the execution based on the signal intensity to institute State the search operation of first network.

In the technical scheme, pass through the statistics to the continuous frequency of failure so that when the continuous frequency of failure is more（For example connect The continuous frequency of failure is more than or equal to preset times）When, show not cover first network interior in a big way.Thus rear In continuous operation, even if serving cell corresponding to terminal and/or adjacent cell change, it will not also perform accordingly to first network Search operation, contribute to terminal to reduce power consumption, extend the stand-by time of terminal.

In the above-mentioned technical solutions, it is preferable that when the continuous failure of the search operation of first network described in the terminal-pair When number is more than or equal to preset times, in addition to：Start timer, and the terminal is initiated after the timer expiry To the search operation of the first network.

In the technical scheme, using the web search mode based on timer, i.e., per after when the timer times out, terminal is held Row, if successful, access first network, otherwise resets timer, to wait the timer again to the search operation of first network After secondary time-out, the search operation to first network is re-executed.

Cell is based on because when the continuous frequency of failure is more, terminal stops performing（Serving cell and/or adjacent cell）Become That changes searches net operation, thus is operated by the above-mentioned web search based on timer so that while power consumption of terminal is reduced, energy Enough promptnesses for ensuring to scan for first network to a certain extent, avoid the covering of user's entrance/return first network Region can not but register for a long time.

In the above-mentioned technical solutions, it is preferable that also include：If the terminal initiated after the timer expiry to institute The search operation failure of first network is stated, then the continuous frequency of failure is subtracted into default value, to be held again by the terminal The search operation to the first network of variable quantity of the row based on the signal intensity.

In the technical scheme, when based on timer search net operation failure when, for searching net frequency based on timer Relatively low situation, can be by changing " the continuous frequency of failure ", such as in order to improve the promptness that terminal accesses first network again The continuous frequency of failure is reduced to less than preset times, so as to make terminal to re-execute the once variable quantity based on signal intensity The overlong time searched net operation, avoid waiting for timer expiry, contribute to shorten user stand-by period.

In the above-mentioned technical solutions, it is preferable that also include：Initiated after the terminal is in the timer expiry to institute When stating the search operation failure of first network, the timer is restarted immediately, or increase the timer according to predetermined manner Timing time simultaneously restarts the timer.

In the technical scheme, by increasing the timing time of timer, it can further reduce terminal and perform to first The frequency of the search operation of network, so as to help to reduce the power consumption of terminal, be advantageous to saving power for terminal, particularly with a wide range of When region without LTE network covering is quickly moved, searching times can be significantly reduced.It is of course also possible to use fixed timing Duration, without being adjusted to timing.

In the above-mentioned technical solutions, it is preferable that when the continuous failure of the search operation of first network described in the terminal-pair When number is more than or equal to preset times, in addition to：If the terminal initiates routing region updating request or band of position renewal Request, then initiate the search operation to the first network.

It is inevitable adjoint due to routing region updating request or the initiation of band of position renewal request in the technical scheme The change in location of terminal, and terminal probably due to the change of the band of position and come back to the overlay area of first network, Thus the search operation accordingly to first network is not blindly to perform, but may be successfully searched first network with larger, Contribute to user's success, rapidly recover to first network, lift Consumer's Experience.

In the above-mentioned technical solutions, it is preferable that also include：If the terminal initiate based on routing region updating request or The search operation to the first network of band of position renewal request fails, then the continuous frequency of failure is subtracted into present count Value, to re-execute the search operation to the first network of the variable quantity based on the signal intensity by the terminal.

In the technical scheme, if searching net operation still based on what routing region updating request or band of position renewal were asked Failure, then, can be by changing " the continuous frequency of failure " in order to improve the promptness that terminal accesses first network again, such as will even The continuous frequency of failure is reduced to less than preset times, so as to make terminal to re-execute once searching for the variable quantity based on signal intensity Net operation, the overlong time that terminal initiates routing region updating request or band of position renewal request is avoided waiting for, helps to contract The stand-by period of short user.

In any of the above-described technical scheme, it is preferable that also include：When data traffic requirement be present in the terminal, and/or In the case where the variable quantity of the signal intensity is less than default variable quantity, judge that the terminal is corresponding in second network Serving cell and/or adjacent cell be less than the feelings of default variable quantity when changing, and/or in the variable quantity of the signal intensity Under condition, judge that one or more of the terminal under second network selectes the changing value of parameter more than or equal to corresponding During default changing value, and/or in the case where the variable quantity of the signal intensity is more than or equal to default variable quantity, described in judgement When the changing value that one or more of the terminal under second network selectes parameter is more than or equal to default changing value accordingly, The terminal is allowed to perform the search operation to the first network；Wherein, the selected parameter include at least one of or It is combined：Emission delay corresponding to the transmission power intensity and/or transmission signal intensity of the terminal, the terminal and/or connect Signal to noise ratio and/or signal interference ratio, the end corresponding to the bit error rate corresponding to receipts delay, the terminal and/or Block Error Rate, the terminal The change in location distance at end.

In the technical scheme, in the second network, because terminal is necessarily connected to neighbouring cell so that pass through understanding To terminal in the second network the situation of change of corresponding serving cell and/or adjacent cell, it becomes possible to directly reflect that terminal exists The change of change in location situation under second network, i.e. serving cell and/or adjacent cell is necessarily due to the change in location of terminal Caused by, and the change in location of relatively large distance most probably occurs for terminal.

When the change in location of relatively large distance occurs for terminal, except the change of serving cell and/or adjacent cell, will also cause The changing value of above-mentioned various selected parameters is larger（Such as larger than or equal to corresponding default changing value）, and therefore terminal is likely to Into/return first network overlay area.So determination by the changing value to above-mentioned selected parameter, you can reflect The change in location situation of terminal, this is determined whether that terminal performs the search operation to first network, can be in certain journey Avoid blindly searching net on degree, help to reduce the power consumption of terminal, be advantageous to saving power for terminal.

Or it can also just perform the search to first network only in the case of it data traffic requirement be present in terminal Operation, so as to both meet the applied mental of user, contribute to recover the connection with first network in time again, and avoid terminal Blindness search net operation.

The invention also provides a kind of web search device, including：Detecting signal unit, in terminal from first network Off-grid has not yet registered to the first network, and when residing in the second network, detects the terminal in second network The signal intensity of corresponding serving cell and/or adjacent cell；Variable quantity judging unit, for judging the change of the signal intensity Whether amount meets to be more than or equal to default variable quantity；Web search unit, in the case of in judged result to meet, perform To the search operation of the first network.

In the above-mentioned technical solutions, it is preferable that the web search unit is additionally operable to：In the first net described in the terminal-pair In the case that the continuous frequency of failure of the search operation of network is more than or equal to preset times, stops execution and be based on the signal intensity Variable quantity the search operation to the first network.

In the above-mentioned technical solutions, it is preferable that also include：Timer management unit, for described in the terminal-pair In the case that the continuous frequency of failure of the search operation of one network is more than or equal to preset times, start timer, with by described Web search unit initiates the search operation to the first network after the timer expiry.

In the above-mentioned technical solutions, it is preferable that also include：Web search frequency control unit, for when the timer When the search operation to the first network initiated after time-out fails, the continuous frequency of failure is subtracted into default value, with The search operation to the first network of the variable quantity based on the signal intensity is re-executed by the web search unit.

In the above-mentioned technical solutions, it is preferable that the timer management unit is additionally operable to：When the terminal is in the timing When the search operation to the first network initiated after device time-out fails, the timer is restarted immediately, or according to default side Formula increases the timing time of the timer and restarts the timer.

In the above-mentioned technical solutions, it is preferable that the web search unit is additionally operable to：In the first net described in the terminal-pair In the case that the continuous frequency of failure of the search operation of network is more than or equal to preset times, if the terminal initiates Routing Area more New request or band of position renewal request, then initiate the search operation to the first network.

In the above-mentioned technical solutions, it is preferable that also include：Web search frequency control unit, for when initiate based on , will be described continuous when routing region updating is asked or the search operation to the first network of band of position renewal request fails The frequency of failure subtracts default value, to re-execute pair of the variable quantity based on the signal intensity by the web search unit The search operation of the first network.

In any of the above-described technical scheme, it is preferable that also include：Combination condition judging unit, for judging the terminal Whether following combination conditions are met：Data traffic requirement be present；And/or it is less than default change in the variable quantity of the signal intensity In the case of amount, judge that the terminal corresponding serving cell and/or adjacent cell in second network change；With/ Or in the case where the variable quantity of the signal intensity is less than default variable quantity, judge the terminal under second network The changing value of the selected parameter of one or more is more than or equal to default changing value accordingly；And/or the change in the signal intensity In the case that change amount is more than or equal to default variable quantity, judge that one or more of the terminal under second network is selected The changing value of parameter is more than or equal to default changing value accordingly；Wherein, the web search unit meets phase in the terminal In the case of answering condition, the search operation to the first network is initiated；And the selected parameter includes at least one of Or its combination：Emission delay corresponding to the transmission power intensity and/or transmission signal intensity of the terminal, the terminal and/or It is signal to noise ratio corresponding to the bit error rate corresponding to reception delay, the terminal and/or Block Error Rate, the terminal and/or signal interference ratio, described The change in location distance of terminal.

The invention also provides a kind of terminal, including：Web search device as any one of above-mentioned technical scheme.

By above technical scheme, the web search of terminal according to the change in location situation of terminal, can either be controlled Frequency and/or number, avoiding frequently blindly searching net causes the waste of power consumption of terminal, and it is specific that and can enough helps terminal to access as early as possible Network, help to lift Consumer's Experience.

Brief description of the drawings

Fig. 1 shows UE off-grids in correlation technique and searches the schematic diagram of network process again；

Fig. 2 shows the schematic flow sheet of network search method according to an embodiment of the invention；

Fig. 3 shows that the variable quantity according to an embodiment of the invention based on signal intensity performs the stream of web search Journey schematic diagram；

Fig. 4 A to Fig. 4 C show variable quantity and timer according to an embodiment of the invention based on signal intensity To perform the schematic flow sheet of web search；

Fig. 5 A to Fig. 5 C show the variable quantity according to an embodiment of the invention based on signal intensity and region more Newly arrive and perform the schematic flow sheet of web search；

Fig. 6 show the variable quantity according to an embodiment of the invention based on signal intensity and data traffic requirement come Perform the schematic flow sheet of web search；

Fig. 7 shows the variable quantity according to an embodiment of the invention based on signal intensity and cell change to perform The schematic flow sheet of web search；

Fig. 8 shows that the variable quantity according to an embodiment of the invention based on signal intensity and change in location distance are come Perform the schematic flow sheet of web search；

Fig. 9 A and Fig. 9 B show that the variable quantity according to an embodiment of the invention based on signal intensity and auxiliary are joined Several variable quantities performs the schematic flow sheet of web search；

Figure 10 shows the schematic block diagram of web search device according to an embodiment of the invention；

Figure 11 shows the schematic block diagram of terminal according to an embodiment of the invention.

Embodiment

It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application Feature in example and embodiment can be mutually combined.

Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

Fig. 2 shows the schematic flow sheet of network search method according to an embodiment of the invention.

As shown in Fig. 2 network search method according to an embodiment of the invention, including：

Step 202, terminal from first network off-grid or has not yet registered to the first network, and resides in the second network；

Step 204, when the terminal in second network signal intensity of corresponding serving cell and/or adjacent cell Variable quantity when being more than or equal to default variable quantity, the terminal performs the search operation to the first network.

Wherein, first network and the second network can be the different mobile radio networks of any two, such as Base station under same position, the coverage of first network are likely less than the coverage of the second network.It is more specific and preferred Ground, such as first network can be 4G networks（Such as LTE）, and the second network can be 2G networks（Such as GSM, GPRS, EDGE CDMA1X etc.）Or 3G network（Such as CDMA2000, TD-SCDMA/TD-HSPA, WCDMA/HSPA）.

First, idiographic flow

Above-mentioned technical proposal is described in detail with reference to Fig. 3.Wherein, Fig. 3 shows one according to the present invention The variable quantity based on signal intensity of embodiment performs the schematic flow sheet of web search.

As shown in figure 3, the variable quantity according to an embodiment of the invention based on signal intensity performs web search Flow includes：

Step 302, UE（User equipment, i.e. terminal）From LTE off-grids, and enter LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions.

Specifically, illustrated here so that LTE is " first network ", 2G/3G networks are " the second network " as an example.

Step 304, after UE is registered to 2G/3G networks, serving cells and/or neighbour of the record UE under 2G/3G networks The signal intensity of cell.

Step 306, according to the signal intensity of record, judge whether the variable quantity Q of the signal intensity meets to be more than or not small In default Strength Changes amount Q0.If satisfied, then entering step 308, otherwise continue waiting for.

Specifically, on the one hand, the signal intensity of precedence record is stored with UE；On the other hand, UE is also constantly obtained newly Signal intensity.Therefore, the signal intensity of current signal intensity and precedence record is subtracted each other and taken absolute value again, you can it is determined that The variable quantity of signal intensity.

Step 308, based in step 306, for the judged result of the variable quantity of signal intensity, a LTE search is performed Registration.

Specifically, due to meaning that UE there occurs the change in location of relatively large distance, makes when the variable quantity of signal intensity is larger It is likely to re-move to LTE coverages, thus terminal power caused by blindly searching net can either be avoided to be lost, and can Enough improve the success rate that UE accesses LTE network again.

Step 310, judge whether LTE search registration operations succeed, if success, into step 312, otherwise return to step 304。

Step 312, UE exits LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions, into normal operating conditions.

Certainly, only illustrated herein by taking " off-grid " scene as an example.In fact, technical scheme is also applied for it His scene.Such as when UE do not cover started shooting in the region of LTE network when, can be by being first registered to 2G/3G networks, Ran Houji In flow as shown in Figure 3, realize the search to LTE network, so as to can either fast search LTE network, and can enough avoids blind Mesh searches net, helps to reduce UE power consumption.

3rd, terminal power saving

Preferably, can be to the LTE of the variable quantity based on signal intensity in technical scheme as shown in Figure 2 or Figure 3 The continuous frequency of failure of search operation is counted, i.e., the continuous frequency of failure.When the continuous frequency of failure is more（Such as continuous failure Number is more than or equal to preset times）When, show not cover first network interior in a big way.Thus in follow-up behaviour In work, following processing modes can be used：

When the continuous frequency of failure of the search operation of first network described in the terminal-pair is more than or equal to preset times, The terminal stops performing the search operation to the first network of the variable quantity based on signal intensity, contributes to terminal to reduce Power consumption, extend the stand-by time of terminal.

4th, cell change is combined with other technologies means

After stopping to the search operation of first network, terminal-pair LTE network may be influenceed（That is first network）And When access, thus other technologies means can be combined, to solve the drawback.

Embodiment one：Timer

In the above-mentioned technical solutions, it is preferable that when the continuous failure of the search operation of first network described in the terminal-pair When number is more than or equal to preset times, in addition to：Start timer, and the terminal is initiated after the timer expiry To the search operation of the first network；Wherein, if the terminal initiated after the timer expiry to first net The search operation failure of network, then restart the timer.

Because when the continuous frequency of failure is more, terminal stops performing the net operation of searching based on change in location distance, thus Operated by the above-mentioned web search based on timer so that, can be true to a certain extent while power consumption of terminal is reduced The promptness scanned for first network is protected, avoids the overlay area of user's entrance/return first network from for a long time can not but Registration.

In the above-mentioned technical solutions, it is preferable that also include：Initiated after the terminal is in the timer expiry to institute When stating the search operation failure of first network, increase the timing time of the timer according to predetermined manner.

Specifically, Fig. 4 A show variable quantity and timer according to an embodiment of the invention based on signal intensity To perform the schematic flow sheet of web search.

As shown in Figure 4 A, variable quantity and timer according to an embodiment of the invention based on signal intensity perform The flow of web search includes：

Step 402, UE from LTE off-grids or has not yet registered to LTE network, and enters LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions.

Step 404, UE performs the LTE search registration processes of the variable quantity based on signal intensity, referring specifically to Fig. 2 or Fig. 3, Here is omitted.

Step 406, continuous frequency of failure N when UE performs LTE search registrations is counted.

Wherein, if continuous frequency of failure N is more than or not less than preset times N1, into step 408, step is otherwise returned to Rapid 404.

Step 408, timer is started, it is assumed that its timing time is Tresearch, specifically, Tresearch time length Degree can be configured as needed.

Step 410, judge whether timer is overtime, if overtime, into step 412, otherwise continue waiting for.

Step 412, UE is controlled to perform a LTE search registration.

Because Tresearch time span is longer than the LTE search registration intervals under default situations, thus contribute to UE Economize on electricity；Meanwhile the LTE search registrations based on timer, can be behind the overlay area of UE entrance/return LTE network, it is ensured that UE Access LTE in time, avoids period of reservation of number long.

Step 414, judge that LTE search registers whether success, if success, into step 416, otherwise into step 418.

Step 416, UE exits LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions, and enters normal operating conditions.

Step 418, the timing time Tresearch of timer numerical value, and return to step 408 are increased.Pass through increase Tresearch numerical value, to reduce the number of LTE search registrations, help to cover in the interior LTE network that is not present in a big way, Or user do not occur relatively large distance it is mobile when, reduce UE power consumptions.The timing length of certain timer can not also adjust, but It is arranged to fixed timing length.

Wherein, process is increased for Tresearch numerical value, can be in the following way：

（1）Threshold value Threshold=n × Tresearch is set, and corresponds to same Threshold, n represents to perform The number of LTE search registrations.

（2）After n LTE search registration, Threshold is increased to original m times（Such as m=2 or other numbers Value）, while still keeping Threshold=n × Tresearch, i.e. Tresearch also increases to original m times.

（3）Until Threshold increases to default maximum of T hreshold_max, then stop adjustment Threshold and Tresearch numerical value.

Certainly, aforesaid way is only used for illustrating；Skilled in the art realises that be, it is clear that its other party can also be used Formula, for example so that the timing time of timer is n × Tresearch, n is the number of LTE search registrations.

As shown in Figure 4 B, on the basis of the technical scheme shown in Fig. 4 A, step 418 '（Corresponding to the step shown in Fig. 4 A 418）In continuous frequency of failure N numerical value can also be adjusted.Specifically, should be by the numerical value of the continuous frequency of failure N Reduce（For example subtract 1）, during causing return to step 406, re-executed due to N ＜ N1 in step 404 based on signal intensity Variable quantity LTE search registration processes, can so as to which " variable quantity of signal intensity " and " timer " be combined with each other utilization Enough power consumptions searched net frequency, reduce UE that UE is reduced by " timer ", and can it is enough by " variable quantity of signal intensity " come Ensure that UE accesses LTE promptness again.

It should be noted that：

In figure 4b, " continuous frequency of failure N " is meant that UE performs LTE search notes based on the variable quantity of signal intensity The number of continuous failure during volume；And when using other counting modes, more technical schemes can also be expanded out.

For example, when can be by registration be searched for based on " variable quantity of signal intensity " and " timer " come the LTE realized The frequency of failure carry out unified counting, operated and failure as long as performing LTE search registrations, will make it that " continuous failure is secondary Number N " changes, and without distinguishing the triggering factors of LTE search registration operations, helps to reduce the complexity of algorithm.Tool Body, when " continuous frequency of failure N " while corresponding to the pass " variable quantity of signal intensity " and " timer " search come the LTE realized During frequency of failure when rope is registered, the step 418 in Fig. 4 B ' following step in Fig. 4 C can be divided into：

Step 418 ' A, when the LTE search registration behavior failures initiated based on " timer ", continuous frequency of failure N adds 1。

Step 418 ' B, increase the timing time of timer according to predetermined manner, and the continuous frequency of failure is subtracted 2（Or The bigger numerical value of person）, N ＜ N1 are ensured during causing return to step 406, so as to trigger the LTE of the variable quantity based on signal intensity Search for registration process.The timing length of certain timer can not also adjust, and be arranged to fixed timing length.

Embodiment two：Area update

Fig. 5 A show the variable quantity based on signal intensity and area update according to an embodiment of the invention to hold The schematic flow sheet of row web search.

As shown in Figure 5A, variable quantity and area update according to an embodiment of the invention based on signal intensity are held The flow of row web search includes：

Step 502, UE from LTE off-grids or has not yet registered to LTE network, and enters LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions.

Step 504, UE performs the LTE search registration processes of the variable quantity based on signal intensity, referring specifically to Fig. 2 or Fig. 3, Here is omitted.

Step 506, continuous frequency of failure N when UE performs LTE search registrations is counted.

Wherein, if continuous frequency of failure N is more than or not less than preset times N1, into step 508, step is otherwise returned to Rapid 504.

Step 508, judge whether UE has initiated RAU（Routing Area Updating, routing region updating）Or LAU （Location Area Updating, band of position renewal）Request, if so, then entering step 510, otherwise continue waiting for.

Step 510, a LTE search registration is performed.

Specifically, because routing region updating request or the band of position update the initiation of request, it is necessarily accompanied with UE position Put change, and UE probably due to the change of the band of position and come back to the overlay area of LTE network, thus accordingly to LTE The search operation of network is not blindly to perform, but may be successfully searched first network with larger, contribute to user's success, Rapidly recover to LTE network, lift Consumer's Experience.

Step 512, judge that LTE search registers whether success, if success, into step 514, otherwise return to step 508.

Step 514, UE exits LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions, and enters normal operating conditions.

As shown in Figure 5 B, on the basis of shown in Fig. 5 A, can also comprise the steps：

Step 516, when based on " area update RAU/LAU " and initiate LTE search registration behavior failures when, will continuously lose Lose number and subtract 1（Or bigger numerical value）And return to step 506, N ＜ N1 are ensured during causing return to step 506, so as to trigger The LTE search registration processes of variable quantity based on signal intensity.

It should be noted that：

In Fig. 5 B " continuous frequency of failure N " corresponds only to search for the LTE that realizes by " variable quantity of signal intensity " Frequency of failure during registration；And when using other counting modes, more technical schemes can also be expanded out.

For example, can be by based on " variable quantity of signal intensity " and " area update RAU/LAU " searches come the LTE realized Frequency of failure when rope is registered carries out unified counting, as long as performing LTE search registration operations and failure, will cause " even Continuous frequency of failure N " changes, and without distinguishing the triggering factors of LTE search registration operations, helps to reduce answering for algorithm Miscellaneous degree.Specifically, when " continuous frequency of failure N " while corresponding to the pass " variable quantity of signal intensity " and " area update RAU/ When LAU " searches for frequency of failure when registering come the LTE realized, the step 516 in Fig. 5 B can be divided into following steps in Fig. 5 C Suddenly：

Step 516A, when based on " area update RAU/LAU " and initiate LTE search registration behavior failures when, it is continuous to lose Lose times N and add 1.

Step 516B, the continuous frequency of failure is subtracted 2（Or bigger numerical value）, N ＜ are ensured during causing return to step 506 N1, so as to trigger the LTE of the variable quantity based on signal intensity search registration processes.

Embodiment three：Data traffic requirement

Fig. 6 show the variable quantity according to an embodiment of the invention based on signal intensity and data traffic requirement come Perform the schematic flow sheet of web search.

As shown in fig. 6, variable quantity and data traffic requirement according to an embodiment of the invention based on signal intensity Include to perform the flow of web search：

Step 602, UE from LTE off-grids or has not yet registered to LTE network, and enters LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions.

Step 604, detecting the variable quantity of the signal intensity of serving cells and/or adjacent cell of the UE under 2G/3G networks is It is no to be more than or equal to setting value, if so, then entering step 606, otherwise continue waiting for.Specifically, for the detection of signal intensity Fig. 2 or Fig. 3 is may refer to, here is omitted.

Step 606, detect in UE and whether there is data traffic requirement, if in the presence of into step 608, otherwise return walks Rapid 604.

Specifically, when the variable quantity of serving cell corresponding to UE and/or the signal intensity of adjacent cell is larger（Such as be more than or Equal to default change in signal strength amount）When, it is likely that it is due to that there occurs the movement of relatively large distance by UE so that UE enters LTE Coverage in, so as to improve UE to LTE network search register success rate.

And in the case where UE can search LTE network, data traffic requirement then embodies user for whether needing Perform the search registration to LTE network.Therefore, by the way that cell ID change is combined with the judgement of data traffic requirement, energy Enough each search caused for LTE network, can either all improve search success rate, and and can enough meets the actual demand of user, To reduce searching times as far as possible, UE power consumptions are reduced.

Step 608, a LTE search registration is performed.

Step 610, judge that LTE search registers whether success, if success, into step 612, otherwise return to step 604.

Step 612, UE exits LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions, and enters normal operating conditions.

Example IV：Parameters variation

When the variable quantity of serving cell corresponding to UE and/or the signal intensity of adjacent cell is larger, it is likely that because UE is sent out The movement of relatively large distance is given birth to so that UE enters in LTE coverage, so as to improve search registrations of the UE to LTE network Success rate.

Embodiment one：Cell change

Fig. 7 shows the variable quantity according to an embodiment of the invention based on signal intensity and cell change to perform The schematic flow sheet of web search.

As shown in fig. 7, variable quantity and cell change according to an embodiment of the invention based on signal intensity are held The flow of row web search includes：

Step 702, UE from LTE off-grids or has not yet registered to LTE network, and enters LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions.

Step 704, detecting the variable quantity of the signal intensity of serving cells and/or adjacent cell of the UE under 2G/3G networks is It is no to be more than or equal to setting value, if so, then entering step 708, otherwise into step 706.Specifically, for the inspection of signal intensity Survey may refer to Fig. 2 or Fig. 3, and here is omitted.

Step 706, detect whether serving cell and/or the cell ID of adjacent cell corresponding to UE change, if change, Into step 708, otherwise return to step 704.

Specifically, when UE is there occurs during the change of serving cell and/or adjacent cell, being able to demonstrate that UE, there occurs larger really The movement of distance, so as to improve the possibility that UE enters LTE overlay areas, it is favorably improved and LTE network is scanned for noting The success rate of volume, to reduce searching times, reduce UE power consumptions.

Step 708, a LTE search registration is performed.

Step 710, judge that LTE search registers whether success, if success, into step 712, otherwise return to step 704.

Step 712, UE exits LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions, and enters normal operating conditions.

Embodiment two：Change in location distance

Fig. 8 shows that the variable quantity according to an embodiment of the invention based on signal intensity and change in location distance are come Perform the schematic flow sheet of web search.

As shown in figure 8, variable quantity and change in location distance according to an embodiment of the invention based on signal intensity Include to perform the flow of web search：

Step 802, UE from LTE off-grids or has not yet registered to LTE network, and enters LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions.

Step 804, detecting the variable quantity of the signal intensity of serving cells and/or adjacent cell of the UE under 2G/3G networks is It is no to be more than or equal to setting value, if so, then entering step 808, otherwise into step 806.Specifically, for the inspection of signal intensity Survey may refer to Fig. 2 or Fig. 3, and here is omitted.

Step 806, according to the UE of acquisition real-time position information, determine UE change in location distance whether meet to be more than or Equal to pre-determined distance, if satisfied, then enter step 808, otherwise return to step 804.

Specifically, UE change in location distance can be since UE when upper once LTE searches for failure, to current time Untill, distance that UE is moved.

Pass through the direct detection and judgement to position displacement, it can be ensured that UE there occurs the movement of relatively large distance, from And the possibility that UE enters LTE overlay areas is improved, the success rate that registration is scanned for LTE network is favorably improved, with Just searching times are reduced, reduce UE power consumptions.

Step 808, a LTE search registration is performed.

Step 810, judge that LTE search registers whether success, if success, into step 812, otherwise return to step 804.

Step 812, UE exits LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions, and enters normal operating conditions.

Embodiment three：Auxiliary parameter

Fig. 9 A show the change of the variable quantity according to an embodiment of the invention based on signal intensity and auxiliary parameter Change amount performs the schematic flow sheet of web search.

As shown in Figure 9 A, the change of variable quantity and auxiliary parameter according to an embodiment of the invention based on signal intensity Change amount includes to perform the flow of web search：

Step 902, UE from LTE off-grids or has not yet registered to LTE network, and enters LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions.

Step 904, detecting the variable quantity of the signal intensity of serving cells and/or adjacent cell of the UE under 2G/3G networks is It is no to be more than or equal to setting value, if so, then entering step 908, otherwise into step 906.Specifically, for the inspection of signal intensity Survey may refer to Fig. 2 or Fig. 3, and here is omitted.

Step 906, detect UE or whether the variable quantity of the auxiliary parameter of its corresponding serving cell and/or adjacent cell meets More than or equal to default variable quantity, if satisfied, then enter step 908, otherwise return to step 904.

Specifically, the auxiliary parameter can include at least one of or its combination：UE transmission power intensity and/or hair Penetrate signal intensity, believe corresponding to the bit error rate and/or Block Error Rate, UE corresponding to emission delay corresponding to UE and/or reception delay, UE Make an uproar than and/or signal interference ratio.

Step 908, a LTE search registration is performed.

Step 910, judge that LTE search registers whether success, if success, into step 912, otherwise return to step 904.

Step 912, UE exits LTE BUCKET-BASED SEARCHING BACKGROUNDSearch working conditions, and enters normal operating conditions.

Fig. 9 B show variable quantity based on signal intensity according to another embodiment of the invention and auxiliary parameter Variable quantity performs the schematic flow sheet of web search.

As shown in Figure 9 B, on the basis of the technical scheme shown in Fig. 9 A, only step 904 '（Corresponding to shown in Fig. 9 A Step 904）With step 906 ' (it should be adjusted in the step 906) shown in Fig. 9 A, it is specific as follows：

Step 904 ', the variable quantity of the signal intensity of serving cells and/or adjacent cell of the detection UE under 2G/3G networks is It is no to be more than or equal to setting value, if so, then entering step 906 ', otherwise reenter step 904 '.

Step 906 ', whether the variable quantity for detecting UE or the auxiliary parameter of its corresponding serving cell and/or adjacent cell is full Foot is more than or equal to default variable quantity, if satisfied, then enter step 908, otherwise return to step 904 '.

It is possible to further after the variable quantity of serving cell corresponding to UE and/or the signal intensity of adjacent cell is larger, The variable quantity of above-mentioned one or more auxiliary parameters is detected.When the variable quantity of above-mentioned one or more auxiliary parameters is more than Or during equal to corresponding default variable quantity, you can further determine that UE may have occurred the movement of relatively large distance, so as to initiate pair The search registration operation of LTE network, to lift the success rate of LTE search registrations, help avoid the LTE search registration behaviour of blindness Make and cause the waste of UE power consumptions.

Figure 10 shows the schematic block diagram of web search device according to an embodiment of the invention.

As shown in Figure 10, web search device 1000 according to an embodiment of the invention, including：Detecting signal unit 1002, for from first network off-grid or being had not yet registered in terminal to the first network, and when residing in the second network, detection Terminal signal intensity of corresponding serving cell and/or adjacent cell in second network；Variable quantity judging unit 1004, whether the variable quantity for judging the signal intensity meets to be more than or equal to default variable quantity；Web search unit 1006, in the case of in judged result to meet, perform the search operation to the first network.

In the above-mentioned technical solutions, it is preferable that the web search unit 1006 is additionally operable to：Described in the terminal-pair In the case that the continuous frequency of failure of the search operation of one network is more than or equal to preset times, stops execution and be based on the signal The search operation to the first network of the variable quantity of intensity.

In the above-mentioned technical solutions, it is preferable that also include：Timer management unit 1008, in the terminal-pair institute State the search operation of first network the continuous frequency of failure be more than or equal to preset times in the case of, start timer, with by The web search unit 1006 initiates the search operation to the first network after the timer expiry.

In the above-mentioned technical solutions, it is preferable that also include：Web search frequency control unit 1010, for when described fixed When device time-out after initiate when failing to the search operation of the first network, the continuous frequency of failure is subtracted into present count Value, with by the web search unit 1006 re-execute the variable quantity based on the signal intensity to the first network Search operation.

In the above-mentioned technical solutions, it is preferable that the timer management unit 1010 is additionally operable to：When the terminal is described When the search operation to the first network initiated after timer expiry fails, the timer is restarted immediately, or according to pre- If mode increases the timing time of the timer and restarts the timer.

In the above-mentioned technical solutions, it is preferable that the web search unit 1006 is additionally operable to：Described in the terminal-pair In the case that the continuous frequency of failure of the search operation of one network is more than or equal to preset times, if the terminal initiates Route Area Area update is asked or band of position renewal request, then initiates the search operation to the first network.

In the above-mentioned technical solutions, it is preferable that also include：Web search frequency control unit 1010, for when initiation When the search operation to the first network based on routing region updating request or band of position renewal request fails, by described in The continuous frequency of failure subtracts default value, to re-execute the change based on the signal intensity by the web search unit 1006 The search operation to the first network of change amount.

In any of the above-described technical scheme, it is preferable that also include：Combination condition judging unit 1012, it is described for judging Whether terminal meets following combination conditions：Data traffic requirement be present；And/or the signal intensity variable quantity be less than it is default In the case of variable quantity, judge that the terminal corresponding serving cell and/or adjacent cell in second network change； And/or in the case where the variable quantity of the signal intensity is less than default variable quantity, judge the terminal in second network Under one or more select the changing value of parameter and be more than or equal to default changing value accordingly；And/or in the signal intensity Variable quantity be more than or equal to default variable quantity in the case of, judge one or more of the terminal under second network The changing value of selected parameter is more than or equal to default changing value accordingly；Wherein, the web search unit is expired in the terminal In the case of sufficient corresponding conditionses, the search operation to the first network is initiated；And the selected parameter include it is following at least One or a combination set of：Emission delay corresponding to the transmission power intensity and/or transmission signal intensity of the terminal, the terminal And/or signal to noise ratio corresponding to the bit error rate corresponding to reception delay, the terminal and/or Block Error Rate, the terminal and/or letter are done Than the change in location distance of the, terminal.

As shown in figure 11, terminal 1100 according to an embodiment of the invention, including web search as shown in Figure 10 Device 1000.

Be described in detail technical scheme above in association with accompanying drawing, the present invention propose a kind of network search method, A kind of web search device and a kind of terminal, according to the change in location situation of terminal the network of terminal can either be controlled to search Rope frequency and/or number, avoiding frequently blindly searching net causes the waste of power consumption of terminal, and and can enough helps terminal to access spy as early as possible Determine network, help to lift Consumer's Experience.

The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims

A kind of 1. network search method, it is characterised in that including：

Terminal is from first network off-grid or has not yet registered to the first network, and resides in the second network；

When the terminal, the variable quantity of the signal intensity of corresponding serving cell and/or adjacent cell is more than in second network Or during equal to default variable quantity, the terminal performs the search operation to the first network；

It is described when the continuous frequency of failure of the search operation of first network described in the terminal-pair is more than or equal to preset times Terminal stops performing the search operation to the first network of the variable quantity based on the signal intensity；

When the continuous frequency of failure of the search operation of first network described in the terminal-pair is more than or equal to preset times, also wrap Include：If the terminal initiates routing region updating request or band of position renewal request, initiation are searched to the first network Rope operates；

If the terminal initiate based on routing region updating request or band of position renewal request to the first network Search operation fails, then the continuous frequency of failure is subtracted into default value, to be re-executed by the terminal based on the letter The search operation to the first network of the variable quantity of number intensity；

It is less than default variable quantity when the terminal has data traffic requirement, and/or in the variable quantity of the signal intensity In the case of, when judging the terminal corresponding serving cell and/or adjacent cell changing in second network, and/or In the case where the variable quantity of the signal intensity is less than default variable quantity, one of the terminal under second network is judged The changing value of individual or multiple selected parameters is more than or equal to when presetting changing value accordingly, and/or the change in the signal intensity In the case that change amount is more than or equal to default variable quantity, judge that one or more of the terminal under second network is selected When the changing value of parameter is more than or equal to default changing value accordingly, it is allowed to which the terminal performs the search to the first network Operation；

Wherein, the selected parameter includes at least one of or its combination：

Emission delay corresponding to the transmission power intensity and/or transmission signal intensity of the terminal, the terminal and/or receive prolongs When, signal to noise ratio corresponding to the bit error rate corresponding to the terminal and/or Block Error Rate, the terminal and/or signal interference ratio, the terminal Change in location distance.
2. network search method according to claim 1, it is characterised in that when searching for first network described in the terminal-pair When the continuous frequency of failure of rope operation is more than or equal to preset times, in addition to：

Start timer, and the terminal initiates the search operation to the first network after the timer expiry.
3. network search method according to claim 2, it is characterised in that also include：

If the search operation to the first network that the terminal is initiated after the timer expiry fails, by the company The continuous frequency of failure subtracts default value, with by the terminal re-execute the variable quantity based on the signal intensity to described The search operation of one network.
4. network search method according to claim 2, it is characterised in that also include：

When the search operation to the first network that the terminal is initiated after the timer expiry fails, restart immediately The timer, or increase the timing time of the timer according to predetermined manner and restart the timer.
A kind of 5. web search device, it is characterised in that including：

Detecting signal unit, for from first network off-grid or being had not yet registered in terminal to the first network, and reside in During two networks, terminal signal intensity of corresponding serving cell and/or adjacent cell in second network is detected；

Whether variable quantity judging unit, the variable quantity for judging the signal intensity meet to be more than or equal to default variable quantity；

Web search unit, in the case of in judged result to meet, perform the search operation to the first network；

The web search unit is additionally operable to：It is big in the continuous frequency of failure of the search operation of first network described in the terminal-pair In or equal in the case of preset times, stopping performing the searching the first network of the variable quantity based on the signal intensity Rope operates；The web search unit is additionally operable to：In the continuous failure time of the search operation of first network described in the terminal-pair In the case that number is more than or equal to preset times, if the terminal initiates routing region updating request or band of position renewal please Ask, then initiate the search operation to the first network；

Web search frequency control unit, for updating request based on routing region updating request or the band of position when initiation When failing to the search operation of the first network, the continuous frequency of failure is subtracted into default value, to be searched by the network Cable elements re-execute the search operation to the first network of the variable quantity based on the signal intensity；

Combination condition judging unit, for judging whether the terminal meets following combination conditions：Data traffic requirement be present； And/or in the case where the variable quantity of the signal intensity is less than default variable quantity, judge the terminal in second network In corresponding serving cell and/or adjacent cell change；And/or it is less than default variable quantity in the variable quantity of the signal intensity In the case of, judge that the changing value of the selected parameter of one or more of the terminal under second network is more than or equal to phase The default changing value answered；And/or in the case where the variable quantity of the signal intensity is more than or equal to default variable quantity, judge institute State one or more of the terminal under second network and select the changing value of parameter more than or equal to default changing value accordingly；

Wherein, the web search unit is initiated to the first network in the case where the terminal meets corresponding conditionses Search operation；And

The selected parameter includes at least one of or its combination：

Emission delay corresponding to the transmission power intensity and/or transmission signal intensity of the terminal, the terminal and/or receive prolongs When, signal to noise ratio corresponding to the bit error rate corresponding to the terminal and/or Block Error Rate, the terminal and/or signal interference ratio, the terminal Change in location distance.
6. web search device according to claim 5, it is characterised in that also include：

Timer management unit, for being more than in the continuous frequency of failure of the search operation of first network described in the terminal-pair or In the case of preset times, start timer, with by the web search unit after the timer expiry, initiate pair The search operation of the first network.
7. web search device according to claim 6, it is characterised in that also include：

Web search frequency control unit, for the search operation to the first network initiated when the timer expiry after During failure, the continuous frequency of failure is subtracted into default value, to be re-executed by the web search unit based on the letter The search operation to the first network of the variable quantity of number intensity.
8. web search device according to claim 6, it is characterised in that the timer management unit is additionally operable to：

When the search operation to the first network that the terminal is initiated after the timer expiry fails, restart immediately The timer, or increase the timing time of the timer according to predetermined manner and restart the timer.
A kind of 9. terminal, it is characterised in that including：Web search device as any one of claim 5 to 8.