CN104754717A

CN104754717A - Power control method and user equipment

Info

Publication number: CN104754717A
Application number: CN201310733651.7A
Authority: CN
Inventors: 张家佶
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2013-12-26
Filing date: 2013-12-26
Publication date: 2015-07-01
Anticipated expiration: 2033-12-26
Also published as: CN104754717B

Abstract

The invention discloses a power control method and user equipment, relates to the technical field of communication, and aims to solve the problem of increase in the call drop rate of the user equipment since a base station is unable to accurately receive or respond to a signal transmitted by the user equipment through an uplink DPCCH (Dedicated Physical Control Channel) under the condition of poorer transmission quality of a downlink DPCCH. The method can comprise the following specific steps: acquiring the receiving quality of a downlink control channel of the base station; if the receiving quality is lower than target receiving quality, acquiring the air interface attenuation value and the load bottom noise value of the base station respectively, and correctly receiving the demodulation threshold value of an uplink control channel by the base station; acquiring a transmitting power guard interval according to the air interface attenuation value, the load bottom noise value and the demodulation threshold value; judging whether or not the current transmitting power of the uplink control channel falls into the transmitting power guard interval; and if the current transmitting power of the uplink control channel does not fall into the transmitting power guard interval, adjusting the current transmitting power according to the transmitting power guard interval. The power control method and the user equipment can be applied to setting of the transmitting power of the uplink control channel.

Description

A kind of Poewr control method and subscriber equipment

Technical field

The present invention relates to communication technical field, particularly relate to Poewr control method and subscriber equipment.

Background technology

Before subscriber equipment communicates with base station, the corresponding information configuration ascending control channel that first subscriber equipment can issue according to base station is as DPCCH(Dedicated Physical Control Channel, Dedicated Physical Control Channel) transmitting power, then subscriber equipment can send signal according to the transmitting power that this configures to base station by ascending control channel.

Subscriber equipment can comprise according to the transmitting power of the up DPCCH of corresponding information configuration that base station issues:

Subscriber equipment is to descending DPCCH(or F-DPCH(Fractional-Dedicated PhysicalChannel, fractional dedicated physical channel)) in TPC(Transmission Power Control, transmitting power control) territory resolves, and obtains the TPC control word of each wireless link; According to corresponding rule, the TPC control word of multiple wireless link collection is merged, obtain the TPC command of the transmitting power of the up DPCCH controlling subscriber equipment; Subscriber equipment calculates the power variation of up DPCCH relative to a upper time slot according to the TPC command that each time slot obtains, computing formula can be: DPCCH power variation=TPC × TPC_cmd, wherein, TPC is power step size, TPC_cmd is TPC command, TPC command can for power increase power reduction or power constant, thus obtain the target transmit power of up DPCCH; The power bias ratio of each channel relative uplink DPCCH is obtained according to the up DPCCH power variation calculated; Total transmitting power of up DPCCH is calculated according to the power bias ratio of each channel relative uplink DPCCH.

But, when the transmission quality of descending DPCCH is deteriorated, the error rate of descending DPCCH can increase thereupon, subscriber equipment is made to there is certain error by resolving the TPC control word obtained, and then cause the transmitting power of the up DPCCH calculated and theoretic transmitting power to there is deviation, if the transmitting power of the up DPCCH calculated is too large lower than theoretical emitted power, the quality of reception of signal in base station that subscriber equipment is transmitted by up DPCCH can be caused to be deteriorated, and then the signal causing base station cannot receive and respond subscriber equipment accurately being sent by up DPCCH, such as, base station cannot respond the demand of descending DPCCH being carried out to lifting transmitting power accurately, like this, make subscriber equipment cannot obtain TPC command accurately, vicious circle like this, the cutting off rate of subscriber equipment is caused to increase.

Summary of the invention

The invention provides a kind of Poewr control method and subscriber equipment, the transmission quality solved due to descending DPCCH is deteriorated, the signal making base station cannot receive and respond subscriber equipment accurately to be sent by up DPCCH, therefore causes the problem that the cutting off rate of subscriber equipment increases.

For achieving the above object, the present invention adopts following technical scheme:

First aspect, provides a kind of Poewr control method, comprising:

Obtain the quality of reception of the down control channel of base station;

If the quality of reception of described down control channel is lower than intended recipient quality, then obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel;

According to value and the described demodulation threshold value of making an uproar at the bottom of described pad value of eating dishes without rice or wine, described load, obtain transmitting power guard interval, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel;

Judge whether the current transmit power of described ascending control channel falls into described transmitting power guard interval;

If described current transmit power does not fall into described transmitting power guard interval, then adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is dropped in described transmitting power guard interval.

In conjunction with first aspect, in the first possible implementation of first aspect, the quality of reception of the down control channel of described acquisition base station, comprising:

Obtain the error rate of described down control channel;

If the quality of reception of described down control channel is lower than intended recipient quality, then obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel, comprising:

If the error rate of described down control channel is greater than the default error rate, then eat dishes without rice or wine to make an uproar at the bottom of pad value and described load described in obtaining respectively value and described demodulation threshold value.

In conjunction with first aspect, in the implementation that the second of first aspect is possible, the quality of reception of the down control channel of described acquisition base station, comprising:

Obtain the signal to noise ratio of described down control channel;

If the signal to noise ratio of described down control channel is less than default signal to noise ratio, then eat dishes without rice or wine to make an uproar at the bottom of pad value and described load described in obtaining respectively value and described demodulation threshold value.

In conjunction with first aspect or the first possible implementation of first aspect or the possible implementation of the second of first aspect, in the third possible implementation of first aspect, the described value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load obtaining described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel, comprising:

Receive the system message that described base station sends;

Value of making an uproar at the bottom of the transmitting power of down public guide frequency channel and described load is obtained from described system message;

Measure the received power of described down public guide frequency channel;

The transmitting power of described down public guide frequency channel is deducted the received power of described down public guide frequency channel, pad value of eating dishes without rice or wine described in obtaining;

Obtain described demodulation threshold value.

In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, the described demodulation threshold value of described acquisition, specifically comprises:

Described demodulation threshold value is obtained by emulation.

In conjunction with the third possible implementation of first aspect, in the 5th kind of possible implementation of first aspect, described method also comprises:

If the quality of reception of described down control channel is not less than described intended recipient quality, then calculate described demodulation threshold value Dem_Th every Preset Time according to formula Dem_Th=P-Los-nodeB_Noise;

The described demodulation threshold value of described acquisition, specifically comprises:

Obtain apart from current time nearest time engrave the Dem_Th calculated by described formula Dem_Th=P-Los-nodeB_Noise;

Wherein, described P is the current transmit power of described ascending control channel, described Los for described in eat dishes without rice or wine pad value, described nodeB_Noise is value of making an uproar at the bottom of described load.

In conjunction with the first possible implementation of first aspect or first aspect to the either type in the 5th kind of possible implementation of first aspect; in the 6th kind of possible implementation of first aspect; to eat dishes without rice or wine described in described basis value and the described demodulation threshold value of making an uproar at the bottom of pad value, described load; obtain transmitting power guard interval, comprising:

Transmitting power desired value P_Target is calculated according to formula P_Target=Dem_Th+Los+nodeB_Noise;

Described P_Target is added predetermined power difference delta, obtains the higher limit of described transmitting power guard interval;

Described P_Target is deducted described delta, obtains the lower limit of described transmitting power guard interval;

Wherein, described Dem_Th is described demodulation threshold value, described Los for described in eat dishes without rice or wine pad value, described nodeB_Noise is value of making an uproar at the bottom of described load.

In conjunction with the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation of first aspect, describedly adjust described current transmit power according to described transmitting power guard interval, comprising:

If described current transmit power is greater than described higher limit, then described current transmit power is adjusted to described higher limit;

If described current transmit power is less than described lower limit, then described current transmit power is adjusted to described lower limit.

In conjunction with the 6th kind of possible implementation of first aspect, in the 8th kind of possible implementation of first aspect, described method also comprises:

If described current transmit power falls into described transmitting power guard interval; described current transmit power and described base station is then used to carry out Signal transmissions; it is following any one that described current transmit power falls into described transmitting power guard interval: described current transmit power equals described higher limit; or described current transmit power is less than described higher limit and is greater than described lower limit, or described current transmit power equals described lower limit.

Second aspect, provides a kind of subscriber equipment, comprising:

Acquiring unit, for obtaining the quality of reception of the down control channel of base station; If the quality of reception of described down control channel is lower than intended recipient quality, then obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel; According to value and the described demodulation threshold value of making an uproar at the bottom of described pad value of eating dishes without rice or wine, described load, obtain transmitting power guard interval, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel;

Judging unit, for judging whether the current transmit power of described ascending control channel falls into the described transmitting power guard interval of described acquiring unit acquisition;

Adjustment unit; if do not fall into the described transmitting power guard interval of described acquiring unit acquisition for described current transmit power; then adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is dropped in described transmitting power guard interval.

In conjunction with first aspect, in the first possible implementation of first aspect, described acquiring unit, specifically for obtaining the error rate of described down control channel; If the error rate of described down control channel is greater than the default error rate, then eat dishes without rice or wine to make an uproar at the bottom of pad value and described load described in obtaining respectively value and described demodulation threshold value.

In conjunction with first aspect, in the implementation that the second of first aspect is possible, described acquiring unit, specifically for obtaining the signal to noise ratio of described down control channel; If the signal to noise ratio of described down control channel is less than default signal to noise ratio, then eat dishes without rice or wine to make an uproar at the bottom of pad value and described load described in obtaining respectively value and described demodulation threshold value.

In conjunction with first aspect or the first possible implementation of first aspect or the possible implementation of the second of first aspect, in the third possible implementation of first aspect, described acquiring unit, comprising:

Receiver module, for receiving the system message that described base station sends;

Acquisition module, for obtaining value of making an uproar at the bottom of the transmitting power of down public guide frequency channel and described load in the described system message that receives from described receiver module;

Measurement module, for measuring the received power of described down public guide frequency channel;

Computing module, the transmitting power for the described down public guide frequency channel obtained by described acquisition module deducts the received power of the described down public guide frequency channel that described measurement module measurement obtains, pad value of eating dishes without rice or wine described in obtaining;

Described acquisition module, also for obtaining described demodulation threshold value.

In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, described acquisition module, specifically for obtaining described demodulation threshold value by emulation.

In conjunction with the third possible implementation of first aspect, in the 5th kind of possible implementation of first aspect, described subscriber equipment also comprises:

Computing unit, if be not less than described intended recipient quality for the quality of reception of described down control channel, then calculates described demodulation threshold value Dem_Th every Preset Time according to formula Dem_Th=P-Los-nodeB_Noise;

Described acquisition module, specifically for obtain described computing unit apart from current time nearest time engrave the Dem_Th calculated by described formula Dem_Th=P-Los-nodeB_Noise;

In conjunction with the first possible implementation of first aspect or first aspect to the either type in the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation of first aspect, described computing module, also for calculating transmitting power desired value P_Target according to formula P_Target=Dem_Th+Los+nodeB_Noise; Described P_Target is added predetermined power difference delta, obtains the higher limit of described transmitting power guard interval; Described P_Target is deducted described delta, obtains the lower limit of described transmitting power guard interval;

In conjunction with the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation of first aspect, described adjustment unit, if be greater than specifically for described current transmit power the described higher limit that described computing module calculates, then described current transmit power is adjusted to described higher limit; If described current transmit power is less than the described lower limit that described computing module calculates, then described current transmit power is adjusted to described lower limit.

In conjunction with the 6th kind of possible implementation of first aspect, in the 8th kind of possible implementation of first aspect, described subscriber equipment also comprises:

Transmission unit; if fall into the described transmitting power guard interval of described acquiring unit acquisition for described current transmit power; described current transmit power and described base station is then used to carry out Signal transmissions; it is following any one that described current transmit power falls into described transmitting power guard interval: described current transmit power equals described higher limit; or described current transmit power is less than described higher limit and is greater than described lower limit, or described current transmit power equals described lower limit.

Poewr control method provided by the invention and subscriber equipment, obtain the quality of reception of the down control channel of base station; If the quality of reception of described down control channel is lower than intended recipient quality, then obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel; According to value and the described demodulation threshold value of making an uproar at the bottom of described pad value of eating dishes without rice or wine, described load, obtain transmitting power guard interval, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel; Judge whether the current transmit power of described ascending control channel falls into described transmitting power guard interval; If described current transmit power does not fall into described transmitting power guard interval, then adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is dropped in described transmitting power guard interval.After adopting such scheme, subscriber equipment can according to the current transmit power of the described transmitting power guard interval calculated by the described ascending control channel of adjustment, the described current transmit power after adjustment is made to drop in described transmitting power guard interval, due to, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel, therefore, even if the transmission quality of current downlink control channel is deteriorated, as long as current transmit power to be adjusted to any transmitted power in described transmitting power guard interval, the signal that described base station just can be made correctly to receive subscriber equipment sent by ascending control channel, and then reduce the cutting off rate of subscriber equipment.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 provides a kind of flow chart of Poewr control method for the present embodiment;

Fig. 2 provides the flow chart of another kind of Poewr control method for the present embodiment;

Fig. 3 provides a kind of structural representation of virtual bench of subscriber equipment for the present embodiment;

Fig. 4 provides the structural representation of the virtual bench of another kind of subscriber equipment for the present embodiment;

Fig. 5 provides a kind of structural representation of entity apparatus of subscriber equipment for the present embodiment.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

The present embodiment provides a kind of Poewr control method, as shown in Figure 1, can comprise:

101, the quality of reception of the down control channel of base station is obtained.

Subscriber equipment can know the quality of the state of described down control channel by the quality of reception of described down control channel, the quality of down control channel can affect the accuracy of the current transmit power of subscriber devices compute ascending control channel, thus, in order to calculate the described current transmit power of ascending control channel in subsequent step accurately, then first subscriber equipment can obtain the quality of reception of the down control channel of described base station.

As an embodiment of the present embodiment, subscriber equipment can receive the system message that described base station issues, and then, obtains the quality of reception of the down control channel of described base station according to the described system message received, wherein, down control channel can include but not limited to descending DPCCH.

The content that the system message that the present embodiment issues described base station comprises is not construed as limiting, and is technology well known to those skilled in the art, does not repeat them here.

If the quality of reception of 102 described down control channels is lower than intended recipient quality, then obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel.

As an embodiment of the present embodiment, if subscriber equipment judges that the quality of reception of described base station is poor, namely the described quality of reception is lower than described intended recipient quality, then subscriber equipment can obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel, it should be noted that, in the present embodiment, ascending control channel and down control channel are the channels of mutually corresponding same type, namely the type of the control information of transmission is identical, such as: in up DPCCH and corresponding descending DPCCH, the control information of transmission includes transmission power control instruction (TPC), feedback information (FBI), and optional transformat combination instruction (TFCI).。

It is (English: Common Pilot Channel that value of making an uproar at the bottom of described pad value of eating dishes without rice or wine, described load may be used for characterizing down public guide frequency channel, abbreviation: interference CPICH) be subject to, namely also may be used for the interference that sign ascending control channel is subject to, wherein, minimum power required when described demodulation threshold information may be used for limiting base station demodulates signal, in other words, base station is only when the signal power received is not less than the demodulation threshold value of base station, the signal that the correct demodulation of ability receives, namely correctly could receive signal.

What deserves to be explained is, the described base station mentioned in the present embodiment can correctly receive the signal sent by described ascending control channel, refer to that correct demodulation can be carried out to the signal sent by described ascending control channel in described base station, repeat no more in subsequent step.

103, according to described in eat dishes without rice or wine value and the described demodulation threshold value of making an uproar at the bottom of pad value, described load, acquisition transmitting power guard interval.

Described transmitting power guard interval can comprise the transmitting power making described base station correctly receive described ascending control channel.Even the transmitting power of described ascending control channel is set to any transmitting power in described transmitting power guard interval; then can ensure that described base station can receive the signal sent by described ascending control channel accurately; such as, can ensure that correct demodulation can be carried out to the signal sent by described ascending control channel in described base station.

104, judge whether the current transmit power of described ascending control channel falls into described transmitting power guard interval.

The current transmit power of the described ascending control channel provided in this step can be that subscriber equipment calculates according to TPC territory, concrete computational methods have carried out simple declaration in the introduction, and this technology is technology well known to those skilled in the art, does not repeat them here.

Due to, the quality of reception of down control channel can have an impact to the transmitting power of subscriber devices compute ascending control channel, even the quality of reception of down control channel is poor, the current transmit power of the ascending control channel calculated then may be caused inaccurate, if the difference between described current transmit power and theoretical emitted power is larger, the signal then causing described base station correctly cannot receive described subscriber equipment being sent by described ascending control channel, namely make accurately to carry out Signal transmissions between described base station and described subscriber equipment, therefore, after determining that the quality of reception of described down control channel is poor, subscriber equipment also needs to judge difference between described current transmit power and theoretical emitted power, concrete, can for judge whether described current transmit power falls into described transmitting power guard interval, if described current transmit power falls into described transmitting power guard interval, then illustrate that between described current transmit power and theoretical emitted power, difference is less, if described current transmit power does not fall into described transmitting power guard interval, then illustrate that between described current transmit power and theoretical emitted power, difference is larger.

If 105 described current transmit power do not fall into described transmitting power guard interval, then adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is dropped in described transmitting power guard interval.

If described current transmit power does not fall into described transmitting power guard interval, then illustrate that between described current transmit power and theoretical emitted power, difference is larger, now, in order to the signal making the reception subscriber equipment that described base station can be correct be sent by ascending control channel, namely Signal transmissions can be carried out accurately to make between described base station and described subscriber equipment, then can adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is made to drop in described transmitting power guard interval, as, described current transmit power can be adjusted to any transmitting power in described transmitting guard interval, like this, after the transmitting power of subscriber equipment by described ascending control channel and after Use Adjustment sends signal to described base station, correct demodulation can be carried out to this signal in described base station, namely described base station can correctly receive the signal sent by described ascending control channel, and then make can carry out Signal transmissions accurately between described base station and described subscriber equipment.

In the present embodiment, obtain the quality of reception of the down control channel of base station; If the quality of reception of described down control channel is lower than intended recipient quality, then obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel; According to value and the described demodulation threshold value of making an uproar at the bottom of described pad value of eating dishes without rice or wine, described load, obtain transmitting power guard interval, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel; Judge whether the current transmit power of described ascending control channel falls into described transmitting power guard interval; If described current transmit power does not fall into described transmitting power guard interval, then adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is dropped in described transmitting power guard interval.After adopting such scheme, subscriber equipment can according to the current transmit power of the described transmitting power guard interval calculated by the described ascending control channel of adjustment, the described current transmit power after adjustment is made to drop in described transmitting power guard interval, due to, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel, therefore, even if the transmission quality of current downlink control channel is deteriorated, as long as current transmit power to be adjusted to any transmitted power in described transmitting power guard interval, the signal that described base station just can be made correctly to receive subscriber equipment sent by ascending control channel, and then reduce the cutting off rate of subscriber equipment.

The present embodiment provides another kind of power distribution method, and the method is further expanding and optimizing the method shown in Fig. 1, as shown in Figure 2, can comprise:

201, subscriber equipment obtains the quality of reception of the down control channel of base station.

Further, the quality of reception of the down control channel of described acquisition base station, can be, but not limited to comprise: the error rate obtaining described down control channel.The error rate is larger, and illustrate that the quality of reception of described down control channel is poorer, the error rate is less, illustrates that the quality of reception of described down control channel is better.

Further, the quality of reception of the down control channel of described acquisition base station, can also comprise: the signal to noise ratio obtaining described down control channel.Signal to noise ratio is larger, and illustrate that the quality of reception of described down control channel is better, signal to noise ratio is less, illustrates that the quality of reception of described down control channel is poorer.

The present embodiment obtains the quality of reception of the down control channel of base station method to subscriber equipment is not construed as limiting, and is technology well known to those skilled in the art, and can sets according to actual needs, do not repeat them here.

The present embodiment is not construed as limiting down control channel and ascending control channel, can set according to actual needs, e.g., can be respectively descending DPCCH or up DPCCH etc., not repeat them here.

202, subscriber equipment judges that whether the described quality of reception is lower than intended recipient quality, if the described quality of reception is lower than described intended recipient quality, then performs step 203, if the described quality of reception is not less than described intended recipient quality, then performs step 209.

Further, if subscriber equipment gets the error rate of described down control channel, then subscriber equipment judges that whether the described quality of reception lower than described intended recipient quality can be: subscriber equipment judges whether the described error rate got is greater than the default error rate, if be greater than the described default error rate, then illustrate that the described quality of reception is lower than described intended recipient quality, if be less than or equal to the described default error rate, then illustrate that the described quality of reception is not less than described intended recipient quality.

Wherein, the described default error rate can be subscriber equipment by emulation mode or obtain by rule of thumb, as being 10% etc., this technology is technology well known to those skilled in the art, does not repeat them here.

The present embodiment is not construed as limiting the error rate of down control channel and acquisition methods thereof, is technology well known to those skilled in the art, and can sets according to actual needs, do not repeat them here.

Further, if subscriber equipment gets the signal to noise ratio of described down control channel, then subscriber equipment judges that whether the described quality of reception lower than intended recipient quality can be: subscriber equipment judges whether the signal to noise ratio got is less than default signal to noise ratio, if be less than described default signal to noise ratio, then illustrate that the described quality of reception is lower than described intended recipient quality, if be more than or equal to described default signal to noise ratio, then illustrate that the described quality of reception is not less than described intended recipient quality.

The present embodiment is not construed as limiting the signal to noise ratio of down control channel and acquisition methods thereof, is technology well known to those skilled in the art, and can sets according to actual needs, do not repeat them here.

203, subscriber equipment obtains the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel.

Further, subscriber equipment obtain described in pad value of eating dishes without rice or wine can be, but not limited to comprise:

Receive the system message that described base station sends; The transmitting power of down public guide frequency channel is obtained from described system message; Measure the received power of described down public guide frequency channel, RSCP(ReceivedSignal Code Power can be thought, received signal code power intensity); The transmitting power of described down public guide frequency channel is deducted the received power of described down public guide frequency channel, pad value of eating dishes without rice or wine described in obtaining

Concrete, can calculate according to formula Los=CPICH_P-RSCP pad value of eating dishes without rice or wine described in down control channel, wherein, Los for described in eat dishes without rice or wine pad value, CPICH_P is the transmitting power of described down public guide frequency channel.

Further, subscriber equipment obtains value of making an uproar at the bottom of described load and can be, but not limited to comprise:

Subscriber equipment can obtain value of making an uproar at the bottom of described load from described system message.

Further, subscriber equipment obtains described demodulation threshold value and can be, but not limited to comprise:

Described demodulation threshold value is obtained by emulation.

Such as, when the error rate is 1%, the described demodulation threshold value got by emulation mode can be 10Db etc.

But the accuracy of the demodulation threshold value got by emulation mode may be lower.Due to, described value of eating dishes without rice or wine to make an uproar at the bottom of pad value and described load is that the system message issued according to described base station obtains, when the quality of reception of described down control channel is not less than described intended recipient quality, the accuracy of value of eating dishes without rice or wine described in the system message issued according to described base station gets to make an uproar at the bottom of pad value and described load is also higher, therefore, subscriber equipment can when the quality of reception of described down control channel be not less than described intended recipient quality, according to the described described demodulation threshold value of value calculating of making an uproar at the bottom of pad value and described load of eating dishes without rice or wine, and can upgrade demodulation threshold value, like this, substantially increase the accuracy of demodulation threshold value.

Concrete, subscriber equipment according to described in the described demodulation threshold value of value calculating of eating dishes without rice or wine to make an uproar at the bottom of pad value and described load can comprise:

If judge, the quality of reception of described down control channel is not less than described intended recipient quality; then subscriber equipment can calculate described demodulation threshold value Dem_Th every Preset Time according to formula Dem_Th=P-Los-nodeB_Noise; then; when calculating described transmitting power guard interval, can be used in apart from current time nearest time engrave the Dem_Th calculated by described formula Dem_Th=P-Los-nodeB_Noise and calculate.

204, subscriber equipment according to described in eat dishes without rice or wine value and the described demodulation threshold value of making an uproar at the bottom of pad value, described load, obtain transmitting power guard interval.

Signal transmissions can be carried out accurately between subscriber equipment and described base station to ensure, the signal demand then being undertaken transmitting by ascending control channel overcomes corresponding interference, this accordingly interference can comprise: ascending control channel eat dishes without rice or wine to decay and described base station load at the bottom of make an uproar, therefore, when arranging the transmitting power of ascending control channel, need to make an uproar at the bottom of the load of eat dishes without rice or wine pad value and the described base station considering ascending control channel value, in addition, also need to consider described demodulation threshold, wherein, the pad value of eating dishes without rice or wine of down public guide frequency channel can be used to replace the pad value of eating dishes without rice or wine of ascending control channel, namely the pad value of eating dishes without rice or wine of down public guide frequency channel can be used when calculating described transmitting power guard interval.Thus; subscriber equipment can calculate described transmitting power guard interval according to make an uproar at the bottom of pad value and described load value and the described demodulation threshold value of eating dishes without rice or wine of down public guide frequency channel, and described transmitting power guard interval can comprise the transmitting power making described base station correctly receive described ascending control channel.

Further, subscriber equipment according to described in eat dishes without rice or wine value and the described demodulation threshold value of making an uproar at the bottom of pad value, described load, obtain transmitting power guard interval and can be, but not limited to comprise:

Transmitting power desired value P_Target is calculated according to formula P_Target=Dem_Th+Los+nodeB_Noise; Described P_Target is added predetermined power difference delta, and obtain the higher limit of described transmitting power guard interval, namely described higher limit equals (P_Target+delta); Described P_Target is deducted described delta, and obtain the lower limit of described transmitting power guard interval, namely described lower limit equals (P_Target-delta).

It can thus be appreciated that the transmitting power guard interval that subscriber devices compute goes out can be interval [P_Target-delta, P_Target+delta].

The present embodiment is not construed as limiting delta, can set according to actual needs, such as, can be 3Db etc., not repeat them here.

205, subscriber equipment judges that the current transmit power value of described ascending control channel is greater than described higher limit (P_Target+delta), is still less than described lower limit (P_Target-delta).If be greater than described higher limit (P_Target+delta), then perform step 206, if be less than described lower limit (P_Target-delta), then perform step 207, if be both not more than described higher limit (P_Target+delta) be also not less than described lower limit (P_Target-delta), then the described current transmit power of ascending control channel is constant, and can perform step 209.

If described current transmit power is greater than described higher limit (P_Target+delta), or be less than described lower limit (P_Target-delta), then illustrate that described current transmit power does not fall into described transmitting power guard interval, and then can illustrate that the difference between described current transmit power and theoretical emitted power is comparatively large, Signal transmissions cannot be carried out accurately between described base station and described subscriber equipment; If described current transmit power had both been not more than described higher limit (P_Target+delta) and had also been not less than described lower limit (P_Target-delta); then illustrate that described current transmit power fall in described transmitting power guard interval; and then can illustrate that the difference between described current transmit power and theoretical emitted power is less, Signal transmissions can be carried out accurately between described base station and described subscriber equipment.

If the quality of reception of described down control channel is lower than described intended recipient quality; and described current transmit power does not fall into described transmitting power guard interval; then described current transmit power can be adjusted to any transmitting power in described transmitting power guard interval; like this; the transmitting power of the ascending control channel after subscriber equipment Use Adjustment is after described base station transmission signal; described base station can correctly receive this signal, and then makes described base station and described subscriber equipment can carry out Signal transmissions accurately.

206, the described current transmit power of described ascending control channel is set to described higher limit (P_Target+delta) by subscriber equipment.

If the quality of reception of described down control channel is lower than described intended recipient quality, and the described current transmit power value of described ascending control channel does not fall into described transmitting power guard interval, then illustrate after using described current transmit power, base station and subscriber equipment cannot carry out Signal transmissions accurately, thus, if described current transmit power value is greater than described higher limit (P_Target+delta), then Signal transmissions accurately can be carried out to ensure between subscriber equipment and base station, described current transmit power can be adjusted to described higher limit (P_Target+delta).

Perform step 208.

207, the described current transmit power of described ascending control channel is set to described lower limit (P_Target-delta) by subscriber equipment.

If the quality of reception of described down control channel is lower than described intended recipient quality, and the described current transmit power value of described ascending control channel does not fall into described transmitting power guard interval, then illustrate after using described current transmit power, base station and subscriber equipment cannot carry out Signal transmissions accurately, thus, if described current transmit power value is less than described lower limit (P_Target-delta), then Signal transmissions accurately can be carried out to ensure between subscriber equipment and base station, described current transmit power can be adjusted to described lower limit (P_Target-delta).

Signal transmissions is carried out in transmitting power and the described base station of the described ascending control channel 208, after subscriber equipment Use Adjustment.

Signal transmissions is carried out in transmitting power and the described base station of the described ascending control channel after subscriber equipment Use Adjustment, the signal making base station can receive subscriber equipment accurately to be sent by described ascending control channel, namely described base station and described subscriber equipment can carry out Signal transmissions accurately.

Flow process terminates.

209, subscriber equipment uses described current transmit power and described base station to carry out Signal transmissions.

If the quality of reception of described down control channel is not less than described intended recipient quality, or, the quality of reception of described down control channel is lower than described intended recipient quality, and fall into described transmitting power guard interval according to the described current transmit power that TCP territory calculates, the signal that current described base station correctly can be received described subscriber equipment and sent by described ascending control channel is then described, namely current described base station and described subscriber equipment can carry out Signal transmissions accurately, thus, subscriber equipment can use described current transmit power and described base station to carry out Signal transmissions.

Further; it is following any one that described current transmit power falls into described transmitting power guard interval: described current transmit power equals described higher limit (P_Target+delta); or described current transmit power is less than described higher limit (P_Target+delta) and is greater than described lower limit (P_Target-delta), or described current transmit power equals described lower limit (P_Target-delta).

In the present embodiment, obtain the quality of reception of the down control channel of base station; If the quality of reception of described down control channel is lower than described intended recipient quality, then obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel; According to value and the described demodulation threshold value of making an uproar at the bottom of described pad value of eating dishes without rice or wine, described load, obtain transmitting power guard interval, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel; Judge whether the current transmit power of described ascending control channel falls into described transmitting power guard interval; If described current transmit power does not fall into described transmitting power guard interval, then adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is dropped in described transmitting power guard interval.After adopting such scheme, subscriber equipment can according to the current transmit power of the described transmitting power guard interval calculated by the described ascending control channel of adjustment, the described current transmit power after adjustment is made to drop in described transmitting power guard interval, due to, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel, therefore, even if the transmission quality of current downlink control channel is deteriorated, as long as current transmit power to be adjusted to any transmitted power in described transmitting power guard interval, the signal that described base station just can be made correctly to receive subscriber equipment sent by ascending control channel, and then reduce the cutting off rate of subscriber equipment.

In addition; if the quality of reception of described down control channel is not less than described intended recipient quality; or; the quality of reception of described down control channel is lower than described intended recipient quality; and the described current transmit power of described ascending control channel falls into described transmitting power guard interval; then user terminal can use described current transmit power and described base station to carry out Signal transmissions, and now, base station and described subscriber equipment can carry out Signal transmissions accurately.

Have again; the described demodulation threshold value calculating described transmitting power guard interval not only can be obtained by emulation mode; can also when the described quality of reception be not less than described intended recipient quality; calculate according to formula Dem_Th=P-Los-nodeB_Noise every Preset Time; like this; add the accuracy of above-mentioned demodulation threshold value, and then can the cutting off rate of more effective reduction subscriber equipment.

There is provided the embodiment of some virtual bench below, the above-mentioned corresponding embodiment of the method provided is corresponding respectively for the embodiment of these virtual bench.

The present embodiment provides a kind of subscriber equipment, as shown in Figure 3, comprising:

Acquiring unit 31, for obtaining the quality of reception of the down control channel of base station; If the quality of reception of described down control channel is lower than intended recipient quality, then obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel; According to value and the described demodulation threshold value of making an uproar at the bottom of described pad value of eating dishes without rice or wine, described load, obtain transmitting power guard interval, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel;

As an embodiment of the present embodiment, subscriber equipment can receive the system message that described base station issues, and then, acquiring unit 31 can obtain the quality of reception of the down control channel of described base station according to the described system message received.

If subscriber equipment judges that the quality of reception of described base station is poor, namely the described quality of reception is lower than described intended recipient quality, then acquiring unit 31 can obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel.

The described transmitting power guard interval that described acquiring unit 31 obtains can comprise the transmitting power making described base station correctly receive described ascending control channel.Even the transmitting power of described ascending control channel is set to any transmitting power in described transmitting power guard interval; then can ensure that described base station can receive the signal sent by described ascending control channel accurately; such as, can ensure that correct demodulation can be carried out to the signal sent by described ascending control channel in described base station.

Judging unit 32, for judging whether the current transmit power of described ascending control channel falls into the described transmitting power guard interval of described acquiring unit acquisition;

Due to, the quality of reception of down control channel can have an impact to the transmitting power of subscriber devices compute ascending control channel, even the quality of reception of down control channel is poor, the current transmit power of the ascending control channel calculated then may be caused inaccurate, if the difference between described current transmit power and theoretical emitted power is larger, the signal then causing described base station correctly cannot receive described subscriber equipment being sent by described ascending control channel, namely make accurately to carry out Signal transmissions between described base station and described subscriber equipment, therefore, after determining that the quality of reception of described down control channel is poor, described judging unit 32 also needs to judge difference between described current transmit power and theoretical emitted power, concrete, can judge whether described current transmit power falls into described transmitting power guard interval for judging unit 32, if described current transmit power falls into described transmitting power guard interval, then illustrate that between described current transmit power and theoretical emitted power, difference is less, if described current transmit power does not fall into described transmitting power guard interval, then illustrate that between described current transmit power and theoretical emitted power, difference is larger.

Adjustment unit 33; if do not fall into the described transmitting power guard interval of described acquiring unit acquisition for described current transmit power; then adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is dropped in described transmitting power guard interval.

If described current transmit power does not fall into described transmitting power guard interval, then illustrate that between described current transmit power and theoretical emitted power, difference is larger, now, in order to the signal making the reception subscriber equipment that described base station can be correct be sent by ascending control channel, namely Signal transmissions can be carried out accurately to make between described base station and described subscriber equipment, then adjustment unit 33 can adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is made to drop in described transmitting power guard interval, as, described current transmit power can be adjusted to any transmitting power in described transmitting guard interval by adjustment unit 33, like this, after the transmitting power of subscriber equipment by described ascending control channel and after Use Adjustment sends signal to described base station, correct demodulation can be carried out to this signal in described base station, namely described base station can correctly receive the signal sent by described ascending control channel, and then make can carry out Signal transmissions accurately between described base station and described subscriber equipment.

In the present embodiment, acquiring unit, for obtaining the quality of reception of the down control channel of base station; If the quality of reception of described down control channel is lower than intended recipient quality, then obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel; According to value and the described demodulation threshold value of making an uproar at the bottom of described pad value of eating dishes without rice or wine, described load, obtain transmitting power guard interval, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel; Judging unit, for judging whether the current transmit power of described ascending control channel falls into the described transmitting power guard interval of described acquiring unit acquisition; Adjustment unit; if do not fall into the described transmitting power guard interval of described acquiring unit acquisition for described current transmit power; then adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is dropped in described transmitting power guard interval.After adopting such scheme, subscriber equipment can according to the current transmit power of the described transmitting power guard interval calculated by the described ascending control channel of adjustment, the described current transmit power after adjustment is made to drop in described transmitting power guard interval, due to, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel, therefore, even if the transmission quality of current downlink control channel is deteriorated, as long as current transmit power to be adjusted to any transmitted power in described transmitting power guard interval, the signal that described base station just can be made correctly to receive subscriber equipment sent by ascending control channel, and then reduce the cutting off rate of subscriber equipment.

The present embodiment provides another kind of subscriber equipment, and this subscriber equipment is further expanding and optimizing the subscriber equipment shown in Fig. 3, as shown in Figure 4, can comprise:

Acquiring unit 41, for obtaining the quality of reception of the down control channel of base station; If the quality of reception of described down control channel is lower than intended recipient quality, then obtain the value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load of described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel; According to value and the described demodulation threshold value of making an uproar at the bottom of described pad value of eating dishes without rice or wine, described load, obtain transmitting power guard interval, described transmitting power guard interval comprises the transmitting power making described base station correctly receive described ascending control channel;

Judging unit 42, for judging whether the current transmit power of described ascending control channel falls into the described transmitting power guard interval of described acquiring unit 41 acquisition;

Adjustment unit 43; if do not fall into the described transmitting power guard interval of described acquiring unit 41 acquisition for described current transmit power; then adjust described current transmit power according to described transmitting power guard interval, the described current transmit power after adjustment is dropped in described transmitting power guard interval.

Further, described acquiring unit 41, specifically for obtaining the error rate of described down control channel; If the error rate of described down control channel is greater than the default error rate, then eat dishes without rice or wine to make an uproar at the bottom of pad value and described load described in obtaining respectively value and described demodulation threshold value.

Concrete, if the error rate of the described down control channel got is greater than the described default error rate, then can illustrate that the described quality of reception is lower than described intended recipient quality, if the error rate of the described down control channel got is less than or equal to the described default error rate, then can illustrate that the described quality of reception is not less than described intended recipient quality.

Further, described acquiring unit 41, specifically for obtaining the signal to noise ratio of described down control channel; If the signal to noise ratio of described down control channel is less than default signal to noise ratio, then eat dishes without rice or wine to make an uproar at the bottom of pad value and described load described in obtaining respectively value and described demodulation threshold value.

Concrete, if the signal to noise ratio of the described down control channel got is less than described default signal to noise ratio, then can illustrate that the described quality of reception is lower than described intended recipient quality, if the signal to noise ratio of the described down control channel got is more than or equal to described default signal to noise ratio, then can illustrate that the described quality of reception is not less than described intended recipient quality.

Further, described acquiring unit 41, can comprise:

Receiver module 411, for receiving the system message that described base station sends;

Acquisition module 412, for obtaining value of making an uproar at the bottom of the transmitting power of down public guide frequency channel and described load in the described system message that receives from described receiver module 411;

Measurement module 413, for measuring the received power of described down public guide frequency channel;

Computing module 414, the transmitting power for the described down public guide frequency channel obtained by described acquisition module 412 deducts the received power that described measurement module 413 measures the described down public guide frequency channel obtained, pad value of eating dishes without rice or wine described in obtaining;

Concrete, described computing module 414 can calculate according to formula Los=CPICH_P-RSCP pad value of eating dishes without rice or wine described in down control channel, wherein, Los for described in eat dishes without rice or wine pad value, CPICH_P is the transmitting power of described down public guide frequency channel.

Described acquisition module 412, also for obtaining described demodulation threshold value.

Further, described acquisition module 412, specifically for obtaining described demodulation threshold value by emulation.

Further, described subscriber equipment also comprises:

Computing unit 44, if be not less than described intended recipient quality for the quality of reception of described down control channel, then calculates described demodulation threshold value Dem_Th every Preset Time according to formula Dem_Th=P-Los-nodeB_Noise;

Described acquisition module 412, specifically for obtain described computing unit 44 apart from current time nearest time engrave the Dem_Th calculated by described formula Dem_Th=P-Los-nodeB_Noise;

Further, described computing module 414, also for calculating transmitting power desired value P_Target according to formula P_Target=Dem_Th+Los+nodeB_Noise; Described P_Target is added predetermined power difference delta, obtains the higher limit of described transmitting power guard interval; Described P_Target is deducted described delta, obtains the lower limit of described transmitting power guard interval;

Further, described adjustment unit 43, if be greater than specifically for described current transmit power the described higher limit that described computing module 414 calculates, is then adjusted to described higher limit by described current transmit power; If described current transmit power is less than the described lower limit that described computing module 414 calculates, then described current transmit power is adjusted to described lower limit.

Further, described subscriber equipment also comprises:

Transmission unit 45; if fall into the described transmitting power guard interval of described acquiring unit 41 acquisition for described current transmit power; described current transmit power and described base station is then used to carry out Signal transmissions; it is following any one that described current transmit power falls into described transmitting power guard interval: described current transmit power equals described higher limit; or described current transmit power is less than described higher limit and is greater than described lower limit, or described current transmit power equals described lower limit.

Further, after described adjustment unit 43 adjusts described current transmitted power, transmission unit 45 transmitting power of described ascending control channel after Use Adjustment and described base station can also carry out Signal transmissions.

Further, if the quality of reception of described down control channel is not less than described intended recipient quality, or, the quality of reception of described down control channel is lower than described intended recipient quality, and described current transmit power falls into described transmitting power guard interval, the signal that current described base station correctly can be received described subscriber equipment and sent by described ascending control channel is then described, namely current described base station and described subscriber equipment can carry out Signal transmissions accurately, thus, transmission unit 45 can also use described current transmit power and described base station to carry out Signal transmissions.

There is provided the embodiment of some entity apparatus below, the embodiment of these entity apparatus respectively above-mentioned corresponding embodiment of the method, the virtual bench embodiment provided is corresponding.

The present embodiment also provides a kind of computer 1, as shown in Figure 5, this computer 1 comprises: at least one processor 15, such as CPU(Central Processing Unit, central processing unit), at least one output interface 16 or other user interfaces 17, memory 18, at least one communication bus 19.Communication bus 19 is for realizing the connection communication between said modules.This computer 1 optionally comprises other user interfaces 17, comprises display, keyboard or pointing device (such as, mouse, trace ball (trackball), touch-sensitive plate or touch sensitive display screen).Memory 18 may comprise high-speed RAM (Random Access Memory, random access memory), still may comprise non-labile memory (non-volatile memory), such as at least one magnetic disc store.Memory 18 optionally can comprise at least one and be positioned at storage device away from aforementioned processor 15.

In some embodiments, memory 18 stores following element, executable module or data structure, or their subset, or their superset:

Operating system 180, comprises various system program, for realizing various basic business and processing hardware based task.

Can be, but not limited to comprise in application program 181:

Further, described acquiring unit, specifically for obtaining the error rate of described down control channel; If the error rate of described down control channel is greater than the default error rate, then eat dishes without rice or wine to make an uproar at the bottom of pad value and described load described in obtaining respectively value and described demodulation threshold value.

Further, described acquiring unit, specifically for obtaining the signal to noise ratio of described down control channel; If the signal to noise ratio of described down control channel is less than default signal to noise ratio, then eat dishes without rice or wine to make an uproar at the bottom of pad value and described load described in obtaining respectively value and described demodulation threshold value.

Further, described acquiring unit, comprising:

Further, described acquisition module, specifically for obtaining described demodulation threshold value by emulation.

Further, described application program 181 can also comprise:

Further, described computing module, also for calculating transmitting power desired value P_Target according to formula P_Target=Dem_Th+Los+nodeB_Noise; Described P_Target is added predetermined power difference delta, obtains the higher limit of described transmitting power guard interval; Described P_Target is deducted described delta, obtains the lower limit of described transmitting power guard interval;

Further, described adjustment unit, if be greater than specifically for described current transmit power the described higher limit that described computing module calculates, is then adjusted to described higher limit by described current transmit power; If described current transmit power is less than the described lower limit that described computing module calculates, then described current transmit power is adjusted to described lower limit.

Further, described application program 181 can also comprise:

In embodiments of the present invention, by call in memory 18 store program or instruction, processor 15 for:

Obtain the quality of reception of the down control channel of base station;

Further, described processor 15, specifically for obtaining the error rate of described down control channel;

Further, described processor 15, specifically for obtaining the signal to noise ratio of described down control channel;

Further, described processor 15, specifically for receiving the system message that described base station sends;

Measure the received power of described down public guide frequency channel;

Obtain described demodulation threshold value.

Further, described processor 15, specifically for the described demodulation threshold value of described acquisition, specifically comprises:

Described demodulation threshold value is obtained by emulation.

Further, described processor 15, if be also not less than described intended recipient quality for the quality of reception of described down control channel, then calculates described demodulation threshold value Dem_Th every Preset Time according to formula Dem_Th=P-Los-nodeB_Noise;

Further, described processor 15, specifically for calculating transmitting power desired value P_Target according to formula P_Target=Dem_Th+Los+nodeB_Noise;

Further, described processor 15, if be greater than described higher limit specifically for described current transmit power, is then adjusted to described higher limit by described current transmit power;

Further; described processor 15; if also fall into described transmitting power guard interval for described current transmit power; described current transmit power and described base station is then used to carry out Signal transmissions; it is following any one that described current transmit power falls into described transmitting power guard interval: described current transmit power equals described higher limit; or described current transmit power is less than described higher limit and is greater than described lower limit, or described current transmit power equals described lower limit.

Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in the storage medium that can read, as the floppy disk of computer, hard disk or CD etc., comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.

Claims

1. a Poewr control method, is characterized in that, comprising:

Obtain the quality of reception of the down control channel of base station;

2. Poewr control method according to claim 1, is characterized in that, the quality of reception of the down control channel of described acquisition base station, comprising:

Obtain the error rate of described down control channel;

3. Poewr control method according to claim 1, is characterized in that, the quality of reception of the down control channel of described acquisition base station, comprising:

Obtain the signal to noise ratio of described down control channel;

4. Poewr control method according to any one of claim 1 to 3, is characterized in that, the described value of eating dishes without rice or wine to make an uproar at the bottom of pad value and load obtaining described base station respectively, and described base station correctly receives the demodulation threshold value of ascending control channel, comprising:

Receive the system message that described base station sends;

Measure the received power of described down public guide frequency channel;

Obtain described demodulation threshold value.

5. Poewr control method according to claim 4, is characterized in that, the described demodulation threshold value of described acquisition, specifically comprises:

Described demodulation threshold value is obtained by emulation.

6. Poewr control method according to claim 4, is characterized in that, described method also comprises:

7. the Poewr control method according to any one of claim 1-6, is characterized in that, value of making an uproar at the bottom of pad value of eating dishes without rice or wine described in described basis, described load and described demodulation threshold value, obtains transmitting power guard interval, comprising:

8. Poewr control method according to claim 7, is characterized in that, describedly adjusts described current transmit power according to described transmitting power guard interval, comprising:

9. Poewr control method according to claim 7, is characterized in that, described method also comprises:

10. a subscriber equipment, is characterized in that, comprising:

11. subscriber equipmenies according to claim 10, is characterized in that, described acquiring unit, specifically for obtaining the error rate of described down control channel; If the error rate of described down control channel is greater than the default error rate, then eat dishes without rice or wine to make an uproar at the bottom of pad value and described load described in obtaining respectively value and described demodulation threshold value.

12. subscriber equipmenies according to claim 10, is characterized in that, described acquiring unit, specifically for obtaining the signal to noise ratio of described down control channel; If the signal to noise ratio of described down control channel is less than default signal to noise ratio, then eat dishes without rice or wine to make an uproar at the bottom of pad value and described load described in obtaining respectively value and described demodulation threshold value.

13., according to claim 10 to the subscriber equipment according to any one of 12, is characterized in that, described acquiring unit, comprising:

14. subscriber equipmenies according to claim 13, is characterized in that, described acquisition module, specifically for being obtained described demodulation threshold value by emulation.

15. subscriber equipmenies according to claim 13, is characterized in that, described subscriber equipment also comprises:

16., according to claim 10 to the subscriber equipment according to any one of 15, is characterized in that, described computing module, also for calculating transmitting power desired value P_Target according to formula P_Target=Dem_Th+Los+nodeB_Noise; Described P_Target is added predetermined power difference delta, obtains the higher limit of described transmitting power guard interval; Described P_Target is deducted described delta, obtains the lower limit of described transmitting power guard interval;

17. subscriber equipmenies according to claim 16, is characterized in that, described adjustment unit, if be greater than specifically for described current transmit power the described higher limit that described computing module calculates, then described current transmit power are adjusted to described higher limit; If described current transmit power is less than the described lower limit that described computing module calculates, then described current transmit power is adjusted to described lower limit.

18. subscriber equipmenies according to claim 16, is characterized in that, described subscriber equipment also comprises: