CN100486268C - Method for saving energy of mobile terminal MS - Google Patents
Method for saving energy of mobile terminal MS Download PDFInfo
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- CN100486268C CN100486268C CNB2006100600881A CN200610060088A CN100486268C CN 100486268 C CN100486268 C CN 100486268C CN B2006100600881 A CNB2006100600881 A CN B2006100600881A CN 200610060088 A CN200610060088 A CN 200610060088A CN 100486268 C CN100486268 C CN 100486268C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The method comprises: a) checking the mobile station (MS) to decide if it always stays in same serving cell and the serving cell is un-changed; b) if yes, the resource management layer prolongs the executing cycle of the periodical task; otherwise the resource management layer executes the periodical task according to the original cycle.
Description
Technical field
The present invention relates to portable terminal (MS Mobile Station) technical field, specifically, relate to the MS power conservation techniques.
Background technology
MS (portable terminal) also plays a greater and greater role in the amusement demand side that satisfies the user except the communication need that satisfies the user, has become a kind of personal entertainment center gradually.Under this development trend, the user uses the time of MS to increase substantially, and the user just needs to consume more electric energy to the increase of MS service time, therefore, and the power index of the MS ever more important that just seems.
In existing GAS (GPRS/GSM Access Stratum GPRS/GSM Access Layer) protocol stack, when MS is in idle condition, can regularly go triggering to carry out three periodic activities:
1, per system message that read Serving cell in 30 seconds fully, the purpose of this task is in order to guarantee that MS can normally reside in current area and the system parameters of current service cell of upgrading in time, seldom changes even changes hardly but the actual conditions of current network are the system parameterss of Serving cell.Therefore, if can guarantee MS resident be same sub-district the time, the system parameters of going to upgrade the sub-district that the cycle is frequent there is no need.
2, read the strongest six adjacent system information of subdistricts in per 5 minutes, the purpose of this task is to be sub-district gravity treatment service: the one, check that can MS normally receive the system message (this is the prerequisite of persistent district) of adjacent Cell Broadcast CB; The 2nd, upgrade the system parameters of adjacent sub-district so that use when carrying out the sub-district gravity treatment.If when MS is in a situation that seldom moves, just mean also when adjacent sub-district is seldom changed that the system message and the update system parameter of going to read adjacent sub-district that the cycle is frequent also there is no need.
3, go the BSIC (base station identity code) and the synchronizing information of checking the strongest six adjacent sub-district BCCH (broadcast channel) carrier frequency per 30 seconds.This periodic task also is to be sub-district gravity treatment service, main purpose is to guarantee that MS monitors that the strongest six adjacent sub-districts do not change (because a sub-district is determined by BCCH+BSIC is unique, if BCCH does not change, but variation has taken place in BSIC, also represents the sub-district that variation has taken place).If during the situation that MS is in seldom to be moved (MS is in a relatively-stationary position, and MS can fixedly reside on the Serving cell and cell change can not take place in this case), the situation that this BISC changes is impossible exist.
When MS is in a situation that seldom moves (in fact for most of working clans, except the commuter time, other times MS resides on the fixing Serving cell), current resident Serving cell and the strongest six adjacent sub-districts of MS supervision can not change, so three kinds of above-mentioned periodic tasks all there is no need frequently to carry out, and the task executions of these three kinds of fixed cycles all is to be undertaken by physical layer, and they all are one of principal elements that expends the MS electric energy.Radio resource (GPRS/GSM Access Layer) is directly being undertaken the task of managing radio resources and the work of scheduling MS phy chip as the center of managing radio resources, also becomes one of important process task of radio resource for MS saves electric energy.But in the 3GPP prior protocols, do not consider under the prerequisite that does not influence the MS normal function, how to help MS to save electric energy.
Summary of the invention
The object of the present invention is to provide a kind of method of saving energy of mobile terminal MS, thereby under the situation that does not influence the MS normal function, save the purpose that its power consumption prolongs its service time to reach.
For achieving the above object, the present invention adopts following technical scheme: a kind of method of saving energy of mobile terminal MS, this method comprises the steps:
A, MS measure the Serving cell of MS and the broadcast channel BCCH received signal intensity and the while execution cycle property task of all adjacent sub-districts thereof;
B, described measurement result show that Serving cell and the strongest adjacent sub-district do not have to change and the base station identity code BSIC of strong adjacent sub-district do not change, and when the result who carries out described periodic task showed described Serving cell and the system parameters of strong adjacent sub-district does not change, resource management layer prolonged the cycle of execution cycle property task; Otherwise resource management layer is carried out described periodic task by primitive period.
Wherein step b specifically comprises:
If the described measurement result of b1 shows that Serving cell and the strongest adjacent sub-district do not have to change and the base station identity code BSIC of strong adjacent sub-district do not change, and when the result who carries out described periodic task shows described Serving cell and the system parameters of strong adjacent sub-district does not change, change step b2c, otherwise re-execute step a;
B2, resource management layer prolong the cycle of carrying out described periodic task respectively, and MS carries out described periodic task according to the cycle after prolonging, and measures the BCCH received signal intensity of described Serving cell and all adjacent sub-districts thereof simultaneously;
If the described measurement result of b3 shows that described Serving cell and the strongest adjacent sub-district do not have to change and the base station identity code of strong adjacent sub-district do not change, and when the result who carries out described periodic task shows described Serving cell and the system parameters of strong adjacent sub-district does not change, constant or the prolongation again of the cycle of the newly-installed execution cycle property task that the resource management layer maintenance is above-mentioned, otherwise resource management layer is re-set as primitive period with the cycle of described execution cycle property task.
Wherein step a repeats repeatedly and writes down each result; Wherein step b gathers judgement according to the result that step a carries out for many times.
Whether the strongest adjacent sub-district of wherein judging described Serving cell changes by judging that BCCH and BSIC realize, if BCCH and BSIC do not have to change, then described adjacent sub-district does not change, if BCCH and/or BSIC change, then described adjacent sub-district changes.
Wherein said periodic task comprises the system information that reads Serving cell, BSIC and the synchronizing information that reads six adjacent system information of subdistricts and/or the strongest six adjacent sub-district BCCH carrier frequency.
The present invention overcomes the deficiencies in the prior art, prolong the cycle of its execution cycle property task when MS being in seldom mobile status by adopting, reduce the technical scheme of the execution frequency of periodic task, under the situation that does not influence the MS function, saved its electric energy, prolong the service time of MS, improved the stand-by time of MS, solved the short problem of the ubiquitous stand-by time of present MS, make portable terminal better meet user's request, simultaneously by having prolonged the service time of MS, improve the stand-by time of MS, made the charging times of MS reduce, thereby prolonged the useful life of MS battery.
Description of drawings
Fig. 1 is a transition schematic diagram between the present invention's " mover state " and " economizing the electronics state ";
Fig. 2 is the present invention's " mover state " action flow chart of MS down;
Fig. 3 is the action flow chart of MS under the present invention " economizes the electronics state ".
Embodiment
Basic principle of the present invention is at first to detect to judge whether mobile terminal MS fixedly resides in same Serving cell and the Serving cell change does not take place, when the Serving cell change does not take place if MS fixedly resides in same Serving cell, resource management layer prolongs the cycle of execution cycle property task, otherwise resource management layer is carried out described periodic task by primitive period.
The present invention is described in detail below in conjunction with specific embodiments and the drawings.
As shown in Figure 1, technical scheme provided by the invention is further divided into the MS Idle state " mover state " and " economizing the electronics state " two sub-states.At three kinds of above-mentioned periodic tasks of distinguishing execution under the different sub-states: when MS is in " mover state ", carry out three above-mentioned periodic tasks according to existing technology (consensus standard); Simultaneously, MS self detect to judge or is detected by the external movement detection system and judges whether MS is in a relatively-stationary state, when MS fixedly garrisons when at a Serving cell change of Serving cell not taking place, MS can be transitted towards " economizing the electronics state ", perhaps judge that by the user MS is in when the state that seldom moves, enter " economizing the electronics state " by button or function choosing-item control MS, under this state,, MS frequently carries out saving the MS electric energy with what avoid periodic task thereby can prolonging under the idle condition task executions cycle periodically.
Below specify:
After carrying out cell selecting or sub-district gravity treatment, the resident current service cell of MS also is transitted towards " mover state " under the Idle state, and this moment, three above-mentioned periodic tasks began to carry out, and MS enters " slow startup stage " simultaneously.A counter C sum counter D at first is set in the present embodiment, initial value all is made as 0, counter C is used for detecting to judge whether MS is in a relatively-stationary situation by the tracking to the received signal intensity of Serving cell and adjacent sub-district, and whether counter D is used for following the tracks of the system parameters that detects Serving cell and adjacent sub-district and changes.
The motion flow of MS is as shown in Figure 2 under " mover state ":
A) MS measures the BCCH received signal intensity of all adjacent sub-districts of Serving cell and this Serving cell;
Received signal intensity according to adjacent sub-district obtains the strongest six adjacent sub-districts (MS is according to the strongest six adjacent sub-districts of the measurement result of adjacent sub-district being safeguarded and upgraded current service cell);
Periodically the decode BSIC of the strongest six adjacent sub-districts of MS;
After MS whenever finishes a wheel measurement, decide counter C whether to add 1 according to following three conditions:
A) | the Serving cell received signal intensity of new Serving cell received signal intensity-last time |＜preset value delta (Δ is that a family of power and influence refers to, when condition can think that Serving cell received signal intensity does not change during less than Δ)
B) the strongest six the adjacent sub-districts that measure by the received signal intensity to adjacent sub-district do not change;
C) obtaining BSIC by the strongest six the adjacent sub-districts of decoding does not change;
If top three conditions all satisfy, show that MS is current and be in a relatively more fixing position that counter C adds 1; Otherwise, show that MS is in a mobile state, with the clear O of counter C.
B) when carrying out A, MS is also carrying out following step:
Cycle receives the system message of Serving cell;
Cycle receives the strongest six adjacent domain system messages;
Decide calculator D whether to add 1 according to following two conditions:
A) system parameters of Serving cell does not change.
B) system parameters of the strongest six adjacent sub-districts does not change;
If top two conditions all satisfy, show the current network steady running and be not in the network configuration parameters stage of adjusting that counter D adds 1; Otherwise network may be in a period of adjusting network configuration parameters, and counter D clear 0;
C) above-mentioned step circulates always and carries out, take turns circulation several device C sum counter D that fall into a trap at each and add 1 or clear 0 according to above-mentioned judged result, until when the value of counter C and D during all greater than a threshold value threshold_C and threshold_D, " slow startup stage " finishes, and MS enters into " economizing the electronics state ".Wherein the value of threshold_C and threshold_D is decided according to test value.
According to technical scheme of the present invention, enter the execution cycle that " economize electronics state " back MS will change above-mentioned three periodic tasks, concrete flow process as shown in Figure 3:
A) in case after MS enters into " economizing the electronics state ", resource management layer is adjusted into the cycle of three above-mentioned periodic tasks n times of " mover state " following cycle, the value of n can be integer or decimal, and the function that does not influence MS to reach best power saving effect is as the criterion.
In order to reach better power saving effect, under " economizing the electronics state ", cycle timer one triggering (overtime) whenever above-mentioned three periodic tasks of control, 1 times of the cycle stretch-out of again cycle timer being set when three periodic tasks are carried out in resource management layer control, promptly under " economizing the electronics state ", it is long that the cycle timer time of above-mentioned three periodic tasks is pressed the index multiplication.
B) under " economize electronics state " state, MS still carries out the measurement of received signal intensity to the BCCH carrier frequency of all adjacent sub-districts of Serving cell and this Serving cell continuously.MS can be according to the strongest six adjacent sub-districts of the measurement result of adjacent sub-district being safeguarded and upgraded current service cell.
After MS whenever finishes a wheel measurement, can decide the state of current MS according to following two conditions:
1) | the received signal intensity of the Serving cell of the received signal intensity-last time of new Serving cell |＜preset value delta, the value of Δ obtains according to test value.
2) basis is to the measurement result ordering of the signal strength signal intensity of adjacent sub-district, and the strongest six adjacent sub-districts do not change.
If two above-mentioned conditions all satisfy, MS keeps " economizing the electronics state ", if one of them condition does not satisfy, MS can withdraw from " economize electronics state " immediately and enter into " mover state " again down and restart " slow startup stage ", and resource management layer is according to above-mentioned activities such as flow process control detection judgement.
Overtime when described cycle timer, three periodic tasks are carried out in resource management layer (MS) control, and after described three periodic tasks executed separately, resource management layer (MS) decided the state of current MS according to following three conditions:
The system parameters of Serving cell does not change.
The system parameters of the strongest six adjacent sub-districts does not change.
The BSIC of the strongest six adjacent sub-districts does not change.
When if above-mentioned each condition satisfies respectively, it is constant that MS remains on " economizing the electronics state ", if one of them condition does not satisfy, MS can withdraw from " economize electronics state " immediately and enter into " mover state " again down and restart " slow startup stage ", and resource management layer (MS) is according to above-mentioned activities such as flow process control detection judgement.
In actual applications, according to technical scheme of the present invention, enter " economize electronics state " back MS and also can only prolong each or wantonly two execution cycle in above-mentioned three periodic tasks, even when the quantity of later periodic task surpasses three, also can adopt this method to prolong the execution cycle of described periodic task.
In addition, MS in the switching between " mover state " and " economize electronics state " except adopting above-mentioned mode controls, also can adopt other mode, for example a button is being set on the MS or in software, is increasing function corresponding, (user rests on fixed place the long period when MS enters a state that seldom moves, as office), MS is switched to " economizing the electronics state " by the user by button or feature operation, MS is with the cycle stretch-out of execution cycle property task; Perhaps by external movement detection system or network measuring when MS is in seldom mobile status, send the default signal of " MS fixedly reside in same Serving cell and the Serving cell change does not take place ", trigger the MS terminal and enter " province's electronics state ".
Technical scheme provided by the invention is by prolonging the cycle of MS execution cycle property task, under the situation that does not influence the MS normal function, effectively saved the consumption of MS self to electric energy, prolonged the service time of MS, improved the stand-by time of MS, solved the short problem of the ubiquitous stand-by time of present MS, make portable terminal better meet user's request, simultaneously by having prolonged the service time of MS, improved the stand-by time of MS, make the charging times of MS reduce, thereby prolonged the useful life of MS battery.
Claims (5)
1, a kind of method of saving energy of mobile terminal MS is characterized in that, this method comprises the steps:
A, MS measure the Serving cell of MS and the broadcast channel BCCH received signal intensity and the while execution cycle property task of all adjacent sub-districts thereof;
If the described measurement result of b shows that Serving cell and the strongest adjacent sub-district do not have to change and the base station identity code BSIC of strong adjacent sub-district do not change, and when the result who carries out described periodic task showed described Serving cell and the system parameters of strong adjacent sub-district does not change, resource management layer prolonged the cycle of execution cycle property task; Otherwise resource management layer is carried out described periodic task by primitive period.
2, the method for saving energy of mobile terminal MS according to claim 1 is characterized in that,
Wherein step b specifically comprises:
If the described measurement result of b1 shows that Serving cell and the strongest adjacent sub-district do not have to change and the base station identity code BSIC of strong adjacent sub-district do not change, and when the result who carries out described periodic task shows described Serving cell and the system parameters of strong adjacent sub-district does not change, change step b2, otherwise re-execute step a;
B2, resource management layer prolong the cycle of carrying out described periodic task, and MS carries out described periodic task according to the cycle after prolonging, and measures the BCCH received signal intensity of described Serving cell and all adjacent sub-districts thereof simultaneously;
If the described measurement result of b3 shows that described Serving cell and the strongest adjacent sub-district do not have to change and the base station identity code of strong adjacent sub-district do not change, and when the result who carries out described periodic task shows described Serving cell and the system parameters of strong adjacent sub-district does not change, constant or the prolongation again of the cycle of the described periodic task of newly-installed execution that the resource management layer maintenance is above-mentioned, otherwise resource management layer is re-set as primitive period with the cycle of described execution cycle property task.
3, the method for saving energy of mobile terminal MS according to claim 1 is characterized in that, wherein step a repeats repeatedly and write down each result; Wherein step b gathers judgement according to the result that step a carries out for many times.
4, the method for saving energy of mobile terminal MS according to claim 1, it is characterized in that, whether the strongest adjacent sub-district of wherein judging described Serving cell changes by judging that BCCH and BSIC realize, if BCCH and BSIC do not have to change, then described adjacent sub-district does not change, if BCCH and/or BSIC change, then described adjacent sub-district changes.
5, according to the method for any described saving energy of mobile terminal MS of claim 1-4, it is characterized in that wherein said periodic task comprises the system information that reads Serving cell, BSIC and the synchronizing information that reads six adjacent system information of subdistricts and/or the strongest six adjacent sub-district BCCH carrier frequency.
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| CNB2006100600881A CN100486268C (en) | 2006-03-28 | 2006-03-28 | Method for saving energy of mobile terminal MS |
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| CNB2006100600881A CN100486268C (en) | 2006-03-28 | 2006-03-28 | Method for saving energy of mobile terminal MS |
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