CN103906191A

CN103906191A - Method and device for network searching and terminal

Info

Publication number: CN103906191A
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: 2014-07-02
Anticipated expiration: 2034-04-15
Also published as: WO2015158039A1; CN103906191B

Abstract

The invention provides a method for network searching. The method comprises the steps that a terminal is separated from a first network or does not register at the first network and resides in a second network; when the variable quantity of the signal strength of the terminal in a corresponding service cell and/or a neighbor cell in the second network is larger than or equal to the preset variable quantity, the terminal conducts searching operation on the first network. The invention further provides a corresponding device for network searching and the terminal. According to the technical scheme, the frequency and/or the number of times of network searching of the terminal can be controlled according to the position changing condition of the terminal, waste of terminal power consumption caused by frequent blind network searching is avoided, the terminal can be assisted in being rapidly connected to the specific network, and the user experience is improved.

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, the whole network architecture has had very large variation compared with 2G/3G, and voice service is as the most important demand of fundamental sum of wireless telecommunications, how in 4G, to realize and to have brought no small trouble to Virtual network operator and terminal business, present stage each large chip manufacturer and 3GPP tissue proposed different solutions and selected for operator, mainly comprise the two schemes (SGLTE/SVLTE) for the treatment of of single deck tape-recorder, circuit domain dropping scheme (CSFB), SRVCC/VOLTE, wherein SVLTE(Simultaneous Voice and LTE, LTE is synchronizeed and is supported with voice network) single deck tape-recorder is two treats that scheme has no special requirements to network, network side is changed little, do not need to dispose IMS, enjoy Domestic Carriers favor.

Present stage, the 4G network coverage did not also reach seamless coverage in the 4G networking initial stage, and even operator takes regional covering for the consideration of cost in some city and area, and this certainly exists 4G off-grid problem concerning mobile terminal.

As shown in Figure 1, suppose in Fig. 1 (a), UE treats or singly treats 4G network at 3G and 4G network pair; In the time that UE leaves 4G network's coverage area, can cause 4G network off-grid, thereby may enter the situation shown in Fig. 1 (b), be connected to 2G and 3G network, or in the time that UE leaves 4G and 3G network overlay area, may enter the situation shown in Fig. 1 (c), only be connected to 2G network; And come back to 4G network lower time as UE, as shown in Figure 1 (d) shows, the obvious hope of user can fast return 4G network, but for the consideration to power consumption of terminal, obviously can not make UE ceaselessly attempt search and the access operation to 4G network always.

Therefore, how to avoid blindly searching the UE electric weight waste that net causes, can make again UE access as early as possible particular network (as 4G network), become technical problem urgently to be resolved hurrily at present.

Summary of the invention

The present invention is just based on the problems referred to above, a kind of new technical scheme has been proposed, can be according to the change in location situation of terminal, web search frequency and/or number of times that can either control terminal, avoid blindly searching frequently the waste that net causes power consumption of terminal, can help again terminal to access as early as possible particular network, contribute to promote user and experience.

In view of this, the present invention proposes a kind of network search method, comprising: terminal is from first network off-grid or have not yet registered to described first network, and reside in second network; In the time that the variable quantity of described terminal signal strength signal intensity of corresponding Serving cell and/or adjacent cell in described second network is more than or equal to default variable quantity, described terminal is carried out the search operation to described first network.

In this technical scheme, for multimode terminal, when terminal is from first network off-grid, can be by residing in second network, to guarantee the continuity of communication.In second network, because terminal must be connected near community, make the situation of change by recognizing terminal signal strength signal intensity of corresponding Serving cell and/or adjacent cell in second network, just can directly reflect the change in location situation of terminal under second network, the variation that is the signal strength signal intensity of Serving cell and/or adjacent cell must be because the change in location of terminal causes, and the change in location of larger distance occurs terminal most probably.Or, the application's technical scheme is also applicable to other scenes, while start in the region that does not cover first network such as terminal, can first be registered to second network, and the search operation changing in conjunction with above-mentioned position-based, guarantee that terminal fast search is to time first network, avoid blindly searching net, contribute to reduce power consumption of terminal.

Therefore, in the time that the change in location of terminal generation is more than or equal to predetermined value, terminal probably enters/reenters the overlay area of first network, now by carrying out the search operation to first network, both increased and searched net success rate, can avoid again blindly searching net and cause the power consumption of terminal to increase, contribute to extend the stand-by time of terminal.

Wherein, first network and second network can be any two different mobile radio networks, and such as the base station under same position, the coverage of first network may be less than the coverage of second network.Comparatively concrete and preferably, such as first network can be 4G network (as LTE), and second network can be 2G network (as GSM, GPRS, EDGE CDMA1X etc.) or 3G network (as CDMA2000, TD-SCDMA/TD-HSPA, WCDMA/HSPA etc.).2G/3G network because the layout time early, the network optimization is perfect, so conventionally its network coverage than large and complete of the 4G network of layout afterwards, therefore 4G off-grid and 2G/3G not the situation of off-grid easily occur in some region.

In technique scheme, preferably, also comprise: in the time that the continuous frequency of failure of the search operation of described terminal to described first network is more than or equal to preset times, described terminal stops carrying out the search operation to described first network of the variable quantity based on described signal strength signal intensity.

In this technical scheme, by the statistics to the continuous frequency of failure, make when the continuous frequency of failure more (such as the continuous frequency of failure is more than or equal to preset times), to show may not cover first network in a big way.Thereby in follow-up operation, even if corresponding Serving cell and/or the adjacent cell of terminal changes, can not carry out accordingly the search operation to first network yet, and contribute to terminal to reduce power consumption, extend the stand-by time of terminal.

In technique scheme, preferably, in the time that the continuous frequency of failure of the search operation of described terminal to described first network is more than or equal to preset times, also comprise: start timer, and described terminal, after described timer expiry, is initiated the search operation to described first network.

In this technical scheme, adopt the web search mode based on timer, after timer expiry, terminal is carried out the search operation to first network, if success, accesses first network, otherwise replacement timer, after waiting for that this timer is again overtime, re-execute the search operation to first network.

Due in the time that the frequency of failure is more continuously, terminal stops carrying out the net operation of searching changing based on community (Serving cell and/or adjacent cell), thereby by the above-mentioned operation of the web search based on timer, make in reducing power consumption of terminal, can guarantee to a certain extent the promptness that first network is searched for, the overlay area of avoiding user to enter/return first network but cannot be registered for a long time.

In technique scheme, preferably, also comprise: if the search operation to described first network that described terminal is initiated after described timer expiry failure, the described continuous frequency of failure is deducted to default value, to be re-executed the search operation to described first network of the variable quantity based on described signal strength signal intensity by described terminal.

In this technical scheme, when searching net operation when failure based on timer, for the situation that net frequency is lower of searching based on timer, again access the promptness of first network in order to improve terminal, can, by change " frequency of failure continuously ", as the continuous frequency of failure is reduced to and is less than preset times, thereby make terminal can re-execute once the net operation of searching of the variable quantity based on signal strength signal intensity, avoid the overtime overlong time of waiting timer, contribute to shorten user's stand-by period.

In technique scheme, preferably, also comprise: when the failure of the search operation to described first network initiated after described timer expiry when described terminal, restart immediately described timer, or increase the timing time of described timer and restart described timer according to predetermined manner.

In this technical scheme, by increasing the timing time of timer, can further reduce terminal and carry out the frequency of the search operation to first network, thereby contribute to reduce the power consumption of terminal, be conducive to saving power for terminal, especially for when on a large scale without the region fast moving of the LTE network coverage, can obviously reduce searching times.Certainly, also can adopt fixing timing length, thereby without timing is adjusted.

In technique scheme, preferably, in the time that the continuous frequency of failure of the search operation of described terminal to described first network is more than or equal to preset times, also comprise: if described terminal is initiated routing region updating request or band of position update request, initiate the search operation to described first network.

In this technical scheme, due to the initiation of routing region updating request or band of position update request, must be accompanied by the change in location of terminal, and terminal probably comes back to the overlay area of first network due to the variation of the band of position, thereby accordingly the search operation of first network is not blindly carried out, may successfully search first network greatlyr but have, contribute to user's success, return to first network rapidly, promote user and experience.

In technique scheme, preferably, also comprise: if the failure of the search operation to described first network based on routing region updating request or band of position update request that described terminal is initiated, the described continuous frequency of failure is deducted to default value, to be re-executed the search operation to described first network of the variable quantity based on described signal strength signal intensity by described terminal.

In this technical scheme, if based on routing region updating request or band of position update request to search net operation still failed, again access the promptness of first network in order to improve terminal, can be by change " frequency of failure continuously ", as the continuous frequency of failure is reduced to and is less than preset times, thereby make terminal can re-execute once the net operation of searching of the variable quantity based on signal strength signal intensity, avoid waiting for the overlong time of terminal initiation routing region updating request or band of position update request, contribute to shorten user's stand-by period.

In above-mentioned arbitrary technical scheme, preferably, also comprise: in the time that described terminal exists data traffic requirement, and/or be less than default variable quantity at the variable quantity of described signal strength signal intensity, judge when described terminal corresponding Serving cell and/or adjacent cell in described second network change, and/or be less than default variable quantity at the variable quantity of described signal strength signal intensity, the changing value of judging the one or more selected parameters of described terminal under described second network is more than or equal to while presetting changing value accordingly, and/or be more than or equal to default variable quantity at the variable quantity of described signal strength signal intensity, the changing value of judging the one or more selected parameters of described terminal under described second network is more than or equal to while presetting changing value accordingly, allow described terminal to carry out the search operation to described first network, wherein, described selected parameter comprise following at least one or a combination set of: the change in location distance of the signal to noise ratio that the error rate that the emission delay that the transmission power intensity of described terminal and/or transmit signal strength, described terminal are corresponding and/or reception delay, described terminal are corresponding and/or Block Error Rate, described terminal are corresponding and/or signal interference ratio, described terminal.

In this technical scheme, in second network, because terminal must be connected near community, make by recognizing terminal corresponding Serving cell and/or situation of change of adjacent cell in second network, just can directly reflect the change in location situation of terminal under second network, the variation that is Serving cell and/or adjacent cell must be because the change in location of terminal causes, and the change in location of larger distance occurs terminal most probably.

In the time there is the change in location of larger distance in terminal, except the variation of Serving cell and/or adjacent cell, also changing value (as being more than or equal to corresponding default changing value) greatly of above-mentioned various selected parameters will be caused, and therefore terminal probably enters/returns the overlay area of first network.So, by determining of the changing value to above-mentioned selected parameter, can reflect the change in location situation of terminal, determine whether to allow terminal to carry out the search operation to first network at this point, can avoid to a certain extent blindly searching net, contribute to reduce the power consumption of terminal, be conducive to saving power for terminal.

Or, can also, only when existing in terminal in the situation of data traffic requirement, just carry out the search operation to first network, thereby both meet user's applied mental, contribute to again to recover in time and being connected of first network, and avoided the blindness of terminal to search net operation.

The invention allows for a kind of web search device, comprise: detecting signal unit, for in terminal from first network off-grid or have not yet registered to described first network, and while residing in second network, detect described terminal corresponding Serving cell and/or signal strength signal intensity of adjacent cell in described second network; Variable quantity judging unit, is more than or equal to default variable quantity for judging whether the variable quantity of described signal strength signal intensity meets; Web search unit, for be satisfied in judged result in the situation that, carries out the search operation to described first network.

In technique scheme, preferably, described web search unit also for: the continuous frequency of failure of the search operation in described terminal to described first network is more than or equal to preset times, stops carrying out the search operation to described first network of variable quantity based on described signal strength signal intensity.

In technique scheme, preferably, also comprise: timer management unit, the continuous frequency of failure for the search operation to described first network in described terminal is more than or equal to preset times, start timer, with by described web search unit after described timer expiry, initiate search operation to described first network.

In technique scheme, preferably, also comprise: web search frequency control unit, for in the time that the search operation to described first network of initiating after described timer expiry is failed, the described continuous frequency of failure is deducted to default value, to be re-executed the search operation to described first network of the variable quantity based on described signal strength signal intensity by described web search unit.

In technique scheme, preferably, described timer management unit also for: when the failure of the search operation to described first network initiated after described timer expiry when described terminal, restart immediately described timer, or increase the timing time of described timer and restart described timer according to predetermined manner.

In technique scheme, preferably, described web search unit also for: the continuous frequency of failure of the search operation in described terminal to described first network is more than or equal to preset times, if described terminal is initiated routing region updating request or band of position update request, initiate the search operation to described first network.

In technique scheme, preferably, also comprise: web search frequency control unit, for in the time that the search operation to described first network based on routing region updating request or band of position update request of initiating is failed, the described continuous frequency of failure is deducted to default value, to be re-executed the search operation to described first network of the variable quantity based on described signal strength signal intensity by described web search unit.

In above-mentioned arbitrary technical scheme, preferably, also comprise: combination condition judging unit, for judging whether described terminal meets following combination condition: there is data traffic requirement; And/or be less than default variable quantity at the variable quantity of described signal strength signal intensity, judge that described terminal corresponding Serving cell and/or adjacent cell in described second network changes; And/or be less than default variable quantity at the variable quantity of described signal strength signal intensity, judge that the changing value of the one or more selected parameters of described terminal under described second network is more than or equal to corresponding default changing value; And/or be more than or equal to default variable quantity at the variable quantity of described signal strength signal intensity, judge that the changing value of the one or more selected parameters of described terminal under described second network is more than or equal to corresponding default changing value; Wherein, the search operation to described first network, in the situation that described terminal meets corresponding conditions, is initiated in described web search unit; And described selected parameter comprise following at least one or a combination set of: the change in location distance of the signal to noise ratio that the error rate that the emission delay that the transmission power intensity of described terminal and/or transmit signal strength, described terminal are corresponding and/or reception delay, described terminal are corresponding and/or Block Error Rate, described terminal are corresponding and/or signal interference ratio, described terminal.

The invention allows for a kind of terminal, comprising: the web search device as described in any one in technique scheme.

By above technical scheme, can be according to the change in location situation of terminal, web search frequency and/or number of times that can either control terminal, avoid blindly searching frequently the waste that net causes power consumption of terminal, can help again terminal to access as early as possible particular network, contribute to promote user and experience.

Brief description of the drawings

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

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

Fig. 3 shows the schematic flow sheet of the execution of the variable quantity based on signal strength signal intensity web search according to an embodiment of the invention;

Fig. 4 A to Fig. 4 C shows variable quantity based on signal strength signal intensity according to an embodiment of the invention and timer carries out the schematic flow sheet of web search;

Fig. 5 A to Fig. 5 C shows variable quantity based on signal strength signal intensity according to an embodiment of the invention and area update carries out the schematic flow sheet of web search;

Fig. 6 shows variable quantity based on signal strength signal intensity according to an embodiment of the invention and data traffic requirement carries out the schematic flow sheet of web search;

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

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

The variable quantity that Fig. 9 A and Fig. 9 B show variable quantity based on signal strength signal intensity according to an embodiment of the invention and auxiliary parameter is carried out 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

In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that not conflicting, the feature in the application's embodiment and embodiment can combine mutually.

A lot of details are set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not subject to the restriction of following public specific embodiment.

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

As shown in Figure 2, network search method according to an embodiment of the invention, comprising:

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

Step 204, in the time that the variable quantity of described terminal signal strength signal intensity of corresponding Serving cell and/or adjacent cell in described second network is more than or equal to default variable quantity, described terminal is carried out the search operation to described first network.

Wherein, first network and second network can be any two different mobile radio networks, and such as the base station under same position, the coverage of first network may be less than the coverage of second network.Comparatively concrete and preferably, such as first network can be 4G network (as LTE), and second network can be 2G network (as GSM, GPRS, EDGE CDMA1X etc.) or 3G network (as CDMA2000, TD-SCDMA/TD-HSPA, WCDMA/HSPA etc.).

One, idiographic flow

Below in conjunction with Fig. 3, technique scheme is elaborated.Wherein, Fig. 3 shows the schematic flow sheet of the execution of the variable quantity based on signal strength signal intensity web search according to an embodiment of the invention.

As shown in Figure 3, the flow process of the execution of the variable quantity based on signal strength signal intensity web search according to an embodiment of the invention comprises:

Step 302, UE(subscriber equipment, i.e. terminal) from LTE off-grid, and enter LTE background search work state.

Particularly, here taking LTE as " first network ", 2G/3G network describes as " second network " as example.

Step 304, after UE is registered to 2G/3G network, records the Serving cell of UE under 2G/3G network and/or the signal strength signal intensity of adjacent cell.

Step 306, according to the signal strength signal intensity of record, judges that whether the variable quantity Q of this signal strength signal intensity meets and be greater than or not less than default Strength Changes amount Q0.If meet, enter step 308, otherwise continue to wait for.

Particularly, on the one hand, in UE, store the signal strength signal intensity of precedence record; On the other hand, UE also constantly obtains new signal strength signal intensity.Therefore, the signal strength signal intensity of current signal strength signal intensity and precedence record is subtracted each other and taken absolute value, can determine the variable quantity of signal strength signal intensity.

Step 308, based in step 306, for the judged result of the variable quantity of signal strength signal intensity, carries out a LTE search registration.

Particularly, because the variable quantity of signal strength signal intensity means that the change in location of larger distance has occurred UE when larger, it is probably re-moved to LTE coverage, thereby can either avoid blindly searching the terminal power loss that net causes, can improve UE again and again access the success rate of LTE network.

Step 310, judges that whether LTE search registration operation is successful, if success enters step 312, otherwise returns to step 304.

Step 312, UE exits LTE background search work state, enters normal operating conditions.

Certainly, only describe as an example of " off-grid " scene example herein.In fact, technical scheme of the present invention is also applicable to other scenes.Such as not covering as UE while starting shooting in the region of LTE network, can be by being first registered to 2G/3G network, the then flow process based on as shown in Figure 3, realize the search to LTE network, thereby can either fast search LTE network, can avoid again blindly searching net, contribute to reduce the power consumption of UE.

Three, terminal power saving

Preferably, in technical scheme as shown in Figure 2 or Figure 3, can add up the continuous frequency of failure of the LTE search operation of this variable quantity based on signal strength signal intensity, i.e. the continuous frequency of failure.When the continuous frequency of failure more (such as the continuous frequency of failure is more than or equal to preset times), show may not cover first network in a big way.Thereby in follow-up operation, can adopt following processing mode:

In the time that the continuous frequency of failure of the search operation of described terminal to described first network is more than or equal to preset times, described terminal stops carrying out the search operation to described first network of the variable quantity based on signal strength signal intensity, contribute to terminal to reduce power consumption, extend the stand-by time of terminal.

Four, cell change combines with other technologies means

After the search operation of first network is stopped, may affecting the timely access of terminal to LTE network (being first network), thereby can be in conjunction with other technologies means, to solve this drawback.

Embodiment mono-: timer

In technique scheme, preferably, in the time that the continuous frequency of failure of the search operation of described terminal to described first network is more than or equal to preset times, also comprise: start timer, and described terminal, after described timer expiry, is initiated the search operation to described first network; Wherein, if described timer is restarted in the search operation to described first network that described terminal is initiated after described timer expiry failure.

Due in the time that the frequency of failure is more continuously, terminal stops carrying out the net operation of searching of position-based variation distance, thereby by the above-mentioned operation of the web search based on timer, make in reducing power consumption of terminal, can guarantee to a certain extent the promptness that first network is searched for, the overlay area of avoiding user to enter/return first network but cannot be registered for a long time.

In technique scheme, preferably, also comprise: when the failure of the search operation to described first network initiated when described terminal, increase the timing time of described timer according to predetermined manner after described timer expiry.

Particularly, Fig. 4 A shows variable quantity based on signal strength signal intensity according to an embodiment of the invention and timer and carries out the schematic flow sheet of web search.

As shown in Figure 4 A, the flow process that variable quantity based on signal strength signal intensity according to an embodiment of the invention and timer are carried out web search comprises:

Step 402, UE is from LTE off-grid or have not yet registered to LTE network, and enters LTE background search work state.

Step 404, UE carries out the LTE search registration process of the variable quantity based on signal strength signal intensity, specifically, referring to Fig. 2 or Fig. 3, repeats no more herein.

Step 406, continuous frequency of failure N when statistics UE carries out LTE search registration.

Wherein, if frequency of failure N is greater than or not less than preset times N1 continuously, enters step 408, otherwise return to step 404.

Step 408, starts timer, supposes that its timing time is Tresearch, and particularly, the time span of Tresearch can arrange as required.

Step 410, judges that whether timer is overtime, if overtime, enters step 412, otherwise continues to wait for.

Step 412, controls UE and carries out a LTE search registration.

Because the time span of Tresearch is longer than the LTE search registration interval under default situations, thereby contribute to UE economize on electricity; Meanwhile, the LTE search registration based on timer, can enter/return behind the overlay area of LTE network at UE, guarantees that UE accesses LTE in time, avoids period of reservation of number long.

Step 414, judges that whether LTE search registration is successful, if success enters step 416, otherwise enters step 418.

Step 416, UE exits LTE background search work state, and enters normal operating conditions.

Step 418, increases the numerical value of the timing time Tresearch of timer, and returns to step 408.By increasing the numerical value of Tresearch, to reduce the number of times of LTE search registration, contribute in a big way, not have the LTE network coverage, or while there is not larger distance mobile in user reduction UE power consumption.Certainly the timing length of timer also can not adjusted, but is set to fixing timing length.

Wherein, increase process for the numerical value of Tresearch, can be in the following way:

(1) threshold value Threshold=n × Tresearch is set, and corresponding to same Threshold, n represents to carry out the number of times of LTE search registration.

(2) after n LTE search registration, Threshold is increased to doubly (such as m=2 or other numerical value) of original m, still keep Threshold=n × Tresearch simultaneously, Tresearch also increases to original m doubly.

(3) until Threshold increases to default maximum of T hreshold_max, stop adjusting the numerical value of Threshold and Tresearch.

Certainly, aforesaid way is only for giving an example; Those skilled in the art are appreciated that, obviously also can adopt other modes, are n × Tresearch such as making the timing time of timer, and n is the number of times of LTE search registration.

As shown in Figure 4 B, on the basis of the technical scheme shown in Fig. 4 A, step 418 ' can also adjust the numerical value of continuous frequency of failure N in (corresponding to the step 418 shown in Fig. 4 A).Particularly, the numerical value of this continuous frequency of failure N should be reduced (such as subtracting 1), when making to return to step 406, the LTE that re-executes the variable quantity based on signal strength signal intensity in step 404 due to N < N1 searches for registration process, thereby by " variable quantity of signal strength signal intensity " and " timer " utilization that mutually combines, can either reduce by " timer " power consumption of searching net frequency, reduction UE of UE, can guarantee that UE accesses the promptness of LTE again by " variable quantity of signal strength signal intensity " again.

It should be noted that:

In Fig. 4 B, the implication of " continuously frequency of failure N " is the variable quantity of UE based on signal strength signal intensity and continuous failed number of times while carrying out LTE search registration; And in the time adopting other counting modes, also can expand out more technical scheme.

For example, the frequency of failure when LTE search realizing based on " variable quantity of signal strength signal intensity " and " timer " can be registered is unified counting, as long as carried out LTE search registration operation failure, will make " frequency of failure N continuously " to change, thereby without the triggering factors of distinguishing LTE search registration operation, contribute to reduce the complexity of algorithm.Particularly, in the time that " continuously frequency of failure N " searches for the frequency of failure while registering corresponding to the LTE realizing by " variable quantity of signal strength signal intensity " and " timer " simultaneously, the step 418 in Fig. 4 B ' can be divided into the following step in Fig. 4 C:

Step 418 ' A, when initiate based on " timer " LTE search registration behavior failure time, frequency of failure N adds 1 continuously.

Step 418 ' B, increase the timing time of timer according to predetermined manner, and the continuous frequency of failure is subtracted to 2(or larger numerical value), guarantee N < N1 when making to return to step 406, thereby trigger the LTE search registration process of the variable quantity based on signal strength signal intensity.Certainly the timing length of timer also can not adjusted, but is set to fixing timing length.

Embodiment bis-: area update

Fig. 5 A shows variable quantity based on signal strength signal intensity according to an embodiment of the invention and area update carries out the schematic flow sheet of web search.

As shown in Figure 5A, the flow process that variable quantity based on signal strength signal intensity according to an embodiment of the invention and area update are carried out web search comprises:

Step 502, UE is from LTE off-grid or have not yet registered to LTE network, and enters LTE background search work state.

Step 504, UE carries out the LTE search registration process of the variable quantity based on signal strength signal intensity, specifically, referring to Fig. 2 or Fig. 3, repeats no more herein.

Step 506, continuous frequency of failure N when statistics UE carries out LTE search registration.

Wherein, if frequency of failure N is greater than or not less than preset times N1 continuously, enters step 508, otherwise return to step 504.

Step 508, judges whether UE has initiated RAU(Routing Area Updating, routing region updating) or LAU(Location Area Updating, the band of position is upgraded) request, if so, enter step 510, otherwise continue to wait for.

Step 510, carries out a LTE search registration.

Particularly, due to the initiation of routing region updating request or band of position update request, must be accompanied by the change in location of UE, and UE probably comes back to the overlay area of LTE network due to the variation of the band of position, thereby accordingly the search operation of LTE network is not blindly carried out, may successfully search first network greatlyr but have, contribute to user's success, return to LTE network rapidly, promote user and experience.

Step 512, judges that whether LTE search registration is successful, if success enters step 514, otherwise returns to step 508.

Step 514, UE exits LTE background search work state, and enters normal operating conditions.

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

Step 516, when initiate based on " area update RAU/LAU " LTE search registration behavior failure time, the continuous frequency of failure is subtracted to 1(or larger numerical value) and return to step 506, guarantee N < N1 when making to return to step 506, thereby trigger the LTE search registration process of the variable quantity based on signal strength signal intensity.

It should be noted that:

Frequency of failure when " frequency of failure N continuously " in Fig. 5 B only registers corresponding to the LTE search realizing by " variable quantity of signal strength signal intensity "; And in the time adopting other counting modes, also can expand out more technical scheme.

For example, the frequency of failure when LTE search realizing based on " variable quantity of signal strength signal intensity " and " area update RAU/LAU " can be registered is unified counting, as long as carried out LTE search registration operation failure, will make " frequency of failure N continuously " to change, thereby without the triggering factors of distinguishing LTE search registration operation, contribute to reduce the complexity of algorithm.Concrete, in the time that " frequency of failure N continuously " searches for the frequency of failure while registering corresponding to the LTE realizing by " variable quantity of signal strength signal intensity " and " area update RAU/LAU " simultaneously, the step 516 in Fig. 5 B can be divided into the following step in Fig. 5 C:

Step 516A, when initiate based on " area update RAU/LAU " LTE search registration behavior failure time, frequency of failure N adds 1 continuously.

Step 516B, subtracts 2(or larger numerical value by the continuous frequency of failure), guarantee N < N1 when making to return to step 506, thereby trigger the LTE search registration process of the variable quantity based on signal strength signal intensity.

Embodiment tri-: data traffic requirement

Fig. 6 shows variable quantity based on signal strength signal intensity according to an embodiment of the invention and data traffic requirement carries out the schematic flow sheet of web search.

As shown in Figure 6, the flow process that variable quantity based on signal strength signal intensity according to an embodiment of the invention and data traffic requirement are carried out web search comprises:

Step 602, UE is from LTE off-grid or have not yet registered to LTE network, and enters LTE background search work state.

Step 604, whether the variable quantity that detects the signal strength signal intensity of the Serving cell of UE under 2G/3G network and/or adjacent cell is more than or equal to set point, if so, enters step 606, otherwise continues to wait for.Particularly, can, referring to Fig. 2 or Fig. 3, repeat no more for the detection of signal strength signal intensity herein.

Step 606, detects in UE whether have data traffic requirement, if exist, enters step 608, otherwise returns to step 604.

Particularly, when the variable quantity of the signal strength signal intensity of Serving cell corresponding to UE and/or adjacent cell is when large (such as being more than or equal to default change in signal strength amount), be likely the movement that larger distance has occurred due to UE, UE is entered in the coverage of LTE, thereby improve the success rate of the search registration of UE to LTE network.

And in the situation that UE can search LTE network, data traffic requirement embodies user for whether needing execution to register the search of LTE network.Therefore,, by the variation of community ID is combined with the judgement of data traffic requirement, can make the each search for LTE network, all can either improve search success rate, can meet again user's actual demand, to reduce as far as possible searching times, reduce UE power consumption.

Step 608, carries out a LTE search registration.

Step 610, judges that whether LTE search registration is successful, if success enters step 612, otherwise returns to step 604.

Step 612, UE exits LTE background search work state, and enters normal operating conditions.

Embodiment tetra-: parameter changes

In the time that the variable quantity of the signal strength signal intensity of Serving cell corresponding to UE and/or adjacent cell is larger, probably there is the movement of larger distance due to UE, UE is entered in the coverage of LTE, thereby improve the success rate of the search registration of UE to LTE network.

Execution mode one: cell change

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

As shown in Figure 7, the flow process that variable quantity based on signal strength signal intensity according to an embodiment of the invention and cell change are carried out web search comprises:

Step 702, UE is from LTE off-grid or have not yet registered to LTE network, and enters LTE background search work state.

Step 704, whether the variable quantity that detects the signal strength signal intensity of the Serving cell of UE under 2G/3G network and/or adjacent cell is more than or equal to set point, if so, enters step 708, otherwise enters step 706.Particularly, can, referring to Fig. 2 or Fig. 3, repeat no more for the detection of signal strength signal intensity herein.

Step 706, whether the Serving cell that detection UE is corresponding and/or the community ID of adjacent cell change, if change, enter step 708, otherwise return to step 704.

Particularly, in the time having there is the variation of Serving cell and/or adjacent cell in UE, can prove that the movement of larger distance has occurred UE really, thereby promote the possibility that UE enters LTE overlay area, contribute to improve the success rate of LTE network being searched for to registration, so that minimizing searching times, reduces UE power consumption.

Step 708, carries out a LTE search registration.

Step 710, judges that whether LTE search registration is successful, if success enters step 712, otherwise returns to step 704.

Step 712, UE exits LTE background search work state, and enters normal operating conditions.

Execution mode two: change in location distance

Fig. 8 shows variable quantity based on signal strength signal intensity according to an embodiment of the invention and change in location distance carries out the schematic flow sheet of web search.

As shown in Figure 8, variable quantity and the change in location based on signal strength signal intensity according to an embodiment of the invention comprises apart from the flow process of carrying out web search:

Step 802, UE is from LTE off-grid or have not yet registered to LTE network, and enters LTE background search work state.

Step 804, whether the variable quantity that detects the signal strength signal intensity of the Serving cell of UE under 2G/3G network and/or adjacent cell is more than or equal to set point, if so, enters step 808, otherwise enters step 806.Particularly, can, referring to Fig. 2 or Fig. 3, repeat no more for the detection of signal strength signal intensity herein.

Step 806, according to the real-time position information of the UE obtaining, determines the whether satisfied predeterminable range that is more than or equal to of change in location distance of UE, if meet, enters step 808, otherwise returns to step 804.

Particularly, the change in location of UE distance can be from UE in the time that once LTE searches for unsuccessfully, start, to till current time, the distance that UE is moved.

By the direct-detection to position displacement and judgement, can guarantee that the movement of larger distance has occurred UE, thereby promote the possibility that UE enters LTE overlay area, contribute to improve the success rate of LTE network being searched for to registration, so that minimizing searching times, reduces UE power consumption.

Step 808, carries out a LTE search registration.

Step 810, judges that whether LTE search registration is successful, if success enters step 812, otherwise returns to step 804.

Step 812, UE exits LTE background search work state, and enters normal operating conditions.

Execution mode three: auxiliary parameter

The variable quantity that Fig. 9 A shows variable quantity based on signal strength signal intensity according to an embodiment of the invention and auxiliary parameter is carried out the schematic flow sheet of web search.

As shown in Figure 9 A, the flow process that the variable quantity of variable quantity based on signal strength signal intensity according to an embodiment of the invention and auxiliary parameter is carried out web search comprises:

Step 902, UE is from LTE off-grid or have not yet registered to LTE network, and enters LTE background search work state.

Step 904, whether the variable quantity that detects the signal strength signal intensity of the Serving cell of UE under 2G/3G network and/or adjacent cell is more than or equal to set point, if so, enters step 908, otherwise enters step 906.Particularly, can, referring to Fig. 2 or Fig. 3, repeat no more for the detection of signal strength signal intensity herein.

Step 906, whether the variable quantity that detects the auxiliary parameter of UE or its corresponding Serving cell and/or adjacent cell meets is more than or equal to default variable quantity, if meet, enters step 908, otherwise returns to step 904.

Particularly, this auxiliary parameter can comprise following at least one or a combination set of: the error rate that the emission delay that the transmission power intensity of UE and/or transmit signal strength, UE are corresponding and/or reception delay, UE are corresponding and/or Block Error Rate, signal to noise ratio and/or signal interference ratio that UE is corresponding.

Step 908, carries out a LTE search registration.

Step 910, judges that whether LTE search registration is successful, if success enters step 912, otherwise returns to step 904.

Step 912, UE exits LTE background search work state, and enters normal operating conditions.

The variable quantity that Fig. 9 B shows the variable quantity based on signal strength signal intensity according to another embodiment of the invention and auxiliary parameter is carried out the schematic flow sheet of web search.

' (corresponding to the step 904 shown in Fig. 9 A) and step 906 ' (should in the step 906 shown in Fig. 9 A) adjusted as shown in Figure 9 B, on the basis of the technical scheme shown in Fig. 9 A, only step 904, specific as follows:

Step 904 ', whether the variable quantity that detects the signal strength signal intensity of the Serving cell of UE under 2G/3G network and/or adjacent cell is more than or equal to set point, if so, enters step 906 ', otherwise reenter step 904 '.

Step 906 ', whether the variable quantity that detects the auxiliary parameter of UE or its corresponding Serving cell and/or adjacent cell meets is more than or equal to default variable quantity, if meet, enters step 908, otherwise returns to step 904 '.

Further, can, after the variable quantity of the signal strength signal intensity of Serving cell corresponding to UE and/or adjacent cell is large, the variable quantity of above-mentioned one or more auxiliary parameters be detected.In the time that the variable quantity of above-mentioned one or more auxiliary parameters is more than or equal to corresponding default variable quantity, can further determine that the movement of larger distance may occur UE, thereby initiate the search registration operation to LTE network, with the success rate of lifting LTE search registration, help avoid LTE blindly and search for the waste of registering operation and cause UE power consumption.

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, comprise: detecting signal unit 1002, for in terminal from first network off-grid or have not yet registered to described first network, and while residing in second network, detect described terminal corresponding Serving cell and/or signal strength signal intensity of adjacent cell in described second network; Variable quantity judging unit 1004, is more than or equal to default variable quantity for judging whether the variable quantity of described signal strength signal intensity meets; Web search unit 1006, for be satisfied in judged result in the situation that, carries out the search operation to described first network.

In technique scheme, preferably, described web search unit 1006 also for: the continuous frequency of failure of the search operation in described terminal to described first network is more than or equal to preset times, stops carrying out the search operation to described first network of variable quantity based on described signal strength signal intensity.

In technique scheme, preferably, also comprise: timer management unit 1008, the continuous frequency of failure for the search operation to described first network in described terminal is more than or equal to preset times, start timer, to be initiated the search operation to described first network after described timer expiry by described web search unit 1006.

In technique scheme, preferably, also comprise: web search frequency control unit 1010, for in the time that the search operation to described first network of initiating after described timer expiry is failed, the described continuous frequency of failure is deducted to default value, to be re-executed the search operation to described first network of the variable quantity based on described signal strength signal intensity by described web search unit 1006.

In technique scheme, preferably, described timer management unit 1010 also for: when the failure of the search operation to described first network initiated after described timer expiry when described terminal, restart immediately described timer, or increase the timing time of described timer and restart described timer according to predetermined manner.

In technique scheme, preferably, described web search unit 1006 also for: the continuous frequency of failure of the search operation in described terminal to described first network is more than or equal to preset times, if described terminal is initiated routing region updating request or band of position update request, initiate the search operation to described first network.

In technique scheme, preferably, also comprise: web search frequency control unit 1010, for in the time that the search operation to described first network based on routing region updating request or band of position update request of initiating is failed, the described continuous frequency of failure is deducted to default value, to be re-executed the search operation to described first network of the variable quantity based on described signal strength signal intensity by described web search unit 1006.

In above-mentioned arbitrary technical scheme, preferably, also comprise: combination condition judging unit 1012, for judging whether described terminal meets following combination condition: there is data traffic requirement; And/or be less than default variable quantity at the variable quantity of described signal strength signal intensity, judge that described terminal corresponding Serving cell and/or adjacent cell in described second network changes; And/or be less than default variable quantity at the variable quantity of described signal strength signal intensity, judge that the changing value of the one or more selected parameters of described terminal under described second network is more than or equal to corresponding default changing value; And/or be more than or equal to default variable quantity at the variable quantity of described signal strength signal intensity, judge that the changing value of the one or more selected parameters of described terminal under described second network is more than or equal to corresponding default changing value; Wherein, the search operation to described first network, in the situation that described terminal meets corresponding conditions, is initiated in described web search unit; And described selected parameter comprise following at least one or a combination set of: the change in location distance of the signal to noise ratio that the error rate that the emission delay that the transmission power intensity of described terminal and/or transmit signal strength, described terminal are corresponding and/or reception delay, described terminal are corresponding and/or Block Error Rate, described terminal are corresponding and/or signal interference ratio, described terminal.

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

More than be described with reference to the accompanying drawings technical scheme of the present invention, the present invention proposes a kind of network search method, a kind of web search device and a kind of terminal, can be according to the change in location situation of terminal, web search frequency and/or number of times that can either control terminal, avoid blindly searching frequently the waste that net causes power consumption of terminal, can help again terminal to access as early as possible particular network, contribute to promote user and experience.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a network search method, is characterized in that, comprising:

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

In the time that the variable quantity of described terminal signal strength signal intensity of corresponding Serving cell and/or adjacent cell in described second network is more than or equal to default variable quantity, described terminal is carried out the search operation to described first network.

2. network search method according to claim 1, is characterized in that, also comprises:

In the time that the continuous frequency of failure of the search operation of described terminal to described first network is more than or equal to preset times, described terminal stops carrying out the search operation to described first network of the variable quantity based on described signal strength signal intensity.

3. network search method according to claim 2, is characterized in that, in the time that the continuous frequency of failure of the search operation of described terminal to described first network is more than or equal to preset times, also comprises:

Start timer, and described terminal is after described timer expiry, initiates the search operation to described first network.

4. network search method according to claim 3, is characterized in that, also comprises:

If the search operation to described first network that described terminal is initiated after described timer expiry failure, the described continuous frequency of failure is deducted to default value, to be re-executed the search operation to described first network of the variable quantity based on described signal strength signal intensity by described terminal.

5. network search method according to claim 3, is characterized in that, also comprises:

After described timer expiry, initiate when described terminal the failure of the search operation to described first network time, restart immediately described timer, or increase the timing time of described timer and restart described timer according to predetermined manner.

6. network search method according to claim 2, is characterized in that, in the time that the continuous frequency of failure of the search operation of described terminal to described first network is more than or equal to preset times, also comprises:

If described terminal is initiated routing region updating request or band of position update request, initiate the search operation to described first network.

7. network search method according to claim 6, is characterized in that, also comprises:

If the failure of the search operation to described first network based on routing region updating request or band of position update request that described terminal is initiated, the described continuous frequency of failure is deducted to default value, to be re-executed the search operation to described first network of the variable quantity based on described signal strength signal intensity by described terminal.

8. according to the network search method described in any one in claim 1 to 7, it is characterized in that, also comprise:

In the time there is data traffic requirement in described terminal, and/or be less than default variable quantity at the variable quantity of described signal strength signal intensity, judge when described terminal corresponding Serving cell and/or adjacent cell in described second network change, and/or be less than default variable quantity at the variable quantity of described signal strength signal intensity, the changing value of judging the one or more selected parameters of described terminal under described second network is more than or equal to while presetting changing value accordingly, and/or be more than or equal to default variable quantity at the variable quantity of described signal strength signal intensity, the changing value of judging the one or more selected parameters of described terminal under described second network is more than or equal to while presetting changing value accordingly, allow described terminal to carry out the search operation to described first network,

Wherein, described selected parameter comprise following at least one or a combination set of:

The change in location distance of the signal to noise ratio that the error rate that the emission delay that the transmission power intensity of described terminal and/or transmit signal strength, described terminal are corresponding and/or reception delay, described terminal are corresponding and/or Block Error Rate, described terminal are corresponding and/or signal interference ratio, described terminal.

9. a web search device, is characterized in that, comprising:

Detecting signal unit, in terminal from first network off-grid or have not yet registered to described first network, and while residing in second network, detect described terminal corresponding Serving cell and/or signal strength signal intensity of adjacent cell in described second network;

Variable quantity judging unit, is more than or equal to default variable quantity for judging whether the variable quantity of described signal strength signal intensity meets;

Web search unit, for be satisfied in judged result in the situation that, carries out the search operation to described first network.

10. web search device according to claim 9, is characterized in that, described web search unit also for:

The continuous frequency of failure of the search operation in described terminal to described first network is more than or equal to preset times, stops carrying out the search operation to described first network of the variable quantity based on described signal strength signal intensity.

11. web search devices according to claim 10, is characterized in that, also comprise:

Timer management unit, the continuous frequency of failure for the search operation to described first network in described terminal is more than or equal to preset times, start timer, with by described web search unit after described timer expiry, initiate search operation to described first network.

12. web search devices according to claim 11, is characterized in that, also comprise:

Web search frequency control unit, for in the time that the search operation to described first network of initiating after described timer expiry is failed, the described continuous frequency of failure is deducted to default value, to be re-executed the search operation to described first network of the variable quantity based on described signal strength signal intensity by described web search unit.

13. web search devices according to claim 11, is characterized in that, described timer management unit also for:

14. web search devices according to claim 10, is characterized in that, described web search unit also for:

The continuous frequency of failure of the search operation in described terminal to described first network is more than or equal to preset times, if described terminal is initiated routing region updating request or band of position update request, initiates the search operation to described first network.

15. web search devices according to claim 14, is characterized in that, also comprise:

Web search frequency control unit, for in the time that the search operation to described first network based on routing region updating request or band of position update request of initiating is failed, the described continuous frequency of failure is deducted to default value, to be re-executed the search operation to described first network of the variable quantity based on described signal strength signal intensity by described web search unit.

16. according to the web search device described in any one in claim 9 to 15, it is characterized in that, also comprises:

Combination condition judging unit, for judging whether described terminal meets following combination condition: there is data traffic requirement; And/or be less than default variable quantity at the variable quantity of described signal strength signal intensity, judge that described terminal corresponding Serving cell and/or adjacent cell in described second network changes; And/or be less than default variable quantity at the variable quantity of described signal strength signal intensity, judge that the changing value of the one or more selected parameters of described terminal under described second network is more than or equal to corresponding default changing value; And/or be more than or equal to default variable quantity at the variable quantity of described signal strength signal intensity, judge that the changing value of the one or more selected parameters of described terminal under described second network is more than or equal to corresponding default changing value;

Wherein, the search operation to described first network, in the situation that described terminal meets corresponding conditions, is initiated in described web search unit; And

Described selected parameter comprise following at least one or a combination set of:

17. 1 kinds of terminals, is characterized in that, comprising: the web search device as described in any one in claim 9 to 16.