CN101583181A - Method and device for controlling transmission power of mobile station - Google Patents
Method and device for controlling transmission power of mobile station Download PDFInfo
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- CN101583181A CN101583181A CNA2008101064683A CN200810106468A CN101583181A CN 101583181 A CN101583181 A CN 101583181A CN A2008101064683 A CNA2008101064683 A CN A2008101064683A CN 200810106468 A CN200810106468 A CN 200810106468A CN 101583181 A CN101583181 A CN 101583181A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
Abstract
The invention discloses a method and a device for controlling the transmission power of mobile stations, belonging to the communication technology field. The method for controlling the transmission power of mobile stations comprises the following steps: acquiring signals of two mobile stations, and adjusting the transmission power of the two mobile stations so that the difference of the intensity of the signals of the two mobile stations meets the first preset requirement or the ratio of the intensity of the signals of the two mobile stations meets the second preset requirement. The device for controlling the transmission power of mobile stations comprises an acquiring module and a cooperatively controlling module. In the invention, the power of the two mobile stations is cooperatively controlled, thus the overlarge signal interference is effectively inhibited, the demodulation performance and the multiplex effect of the multiplex mobile station are improved, and the business quality is guaranteed when the MUROS technology is used for improving the phonetic capacity.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of control method of transmission power of mobile station and device.
Background technology
The method of salary distribution that traditional voice adopts a time slot to use for a user, continuous increase along with number of users, need on identical resource, carry the more speech of multichannel, therefore occurred at a time slot and ARFCN (Absolute RadioFrequency Channel Number, absolute frequency point number) goes up multiplexing a plurality of users' technology, as MUROS (Multi-User ReuseOne Slot, multiuser time slot multiplexing) technology can obtain the remarkable increase of capacity on fixing carrier frequency and frequency spectrum.
Referring to Fig. 1, MUROS is multiplexing two user MS (Mobile Station, travelling carriage) 1 and MS2 on a time slot, and MUROS provides two subchannels, and each MS takies a subchannel, and subchannel is distinguished by the training sequence of quadrature or nearly orthogonal.At down direction, BTS (Base Station Subsystem, base station sub-system) sends two-way GMSK (GaussianMinimum Shift-frequency Keying, GMSK (Guassian Minimum Shift Keying)) signal produces class QPSK (Quadrature PhaseShift Keying, quarternary phase-shift keying (QPSK)) signal, MS is by the mutually orthogonal training sequence and the interference cancellation techniques of enhancing, with not one's own signal, be used as interference signal and eliminate, thereby solve one's own one road signal.At up direction, two multiplexing MS use GMSK to be modulated at same time slot and send signal, BTS uses SIC (Successive InterferenceCancellation, continuous interference eliminated) or JD (Joint Detection, joint-detection) the multiplexing signal of mode demodulation two-way, and distinguish two users by different training sequences.
In order to improve spectrum efficiency, more effectively to utilize hardware and frequency spectrum resource, adopt power control algorithm usually, the transmitting power (being ascending power) of MS controlled according to certain principle.This principle is specific as follows: if the incoming level of BTS or the quality of reception are higher than desired value, then suitably reduce the transmitting power of MS; If the incoming level of BTS or the quality of reception are lower than desired value, then suitably improve the transmitting power of MS; Take all factors into consideration incoming level and quality of reception factor simultaneously, to improve the accuracy and the validity of power control.The process that the transmitting power of MS is controlled is as follows: BSC (Base Station Controller, base station controller) receive the out-hole run report of the some that BTS sends after, obtain the incoming level and the quality of reception of actual uplink link by processing methods such as interpolation, filtering, and compare with the incoming level and the quality of reception of up link of expectation, determine whether the transmitting power of needs adjustment MS according to result relatively, if, then pass through power control algorithm, calculate the power rank that should be adjusted to, to MS transmitted power adjustment order.For example, set the upper limit threshold of incoming level and the upper limit threshold and the lower threshold of the lower threshold and the quality of reception respectively, and set counter P and N.In P measurement report of continuous reception, there be N to surpass above-mentioned threshold value, then carry out the power adjustment, then descend adjusting power, then go up adjusting power if be lower than lower threshold if be higher than upper limit threshold.
After prior art was analyzed, the inventor found: the terminals multiplexed user is carried out power control respectively separately, may cause disturbing between the multiplexing signal excessive, receive and demodulation performance decline, even can't demodulation.
Summary of the invention
Control for the transmitting power to travelling carriage more effectively, the embodiment of the invention provides a kind of control method and device of transmission power of mobile station.Described technical scheme is as follows:
A kind of control method of transmission power of mobile station, described method comprises:
Obtain the signal of two travelling carriages;
Adjust the transmitting power of described two travelling carriages, it is first pre-conditioned that the difference of the signal strength signal intensity of described two travelling carriages is satisfied; Perhaps,
Adjust the transmitting power of described two travelling carriages, it is second pre-conditioned that the ratio of the signal strength signal intensity of described two travelling carriages is satisfied.
A kind of control device of transmission power of mobile station, described device comprises:
Acquisition module is used to obtain the signal of two travelling carriages;
Jointly control module, be used to adjust the transmitting power of described two travelling carriages, it is first pre-conditioned that the difference of the signal strength signal intensity of described two travelling carriages that described acquisition module obtains is satisfied; Perhaps adjust the transmitting power of described two travelling carriages, it is second pre-conditioned that the ratio of the signal strength signal intensity of described two travelling carriages is satisfied.
The embodiment of the invention is united according to the difference of the signal strength signal intensity of two MS or ratio two MS is carried out power control, has suppressed effectively to disturb excessive possibility between the signal, makes the MUROS technology also guarantee quality of service in the raising voice capacity.
Description of drawings
Fig. 1 is the schematic diagram of MUROS multiplexing two users on should time slot in the prior art;
Fig. 2 is a kind of flow chart of control method of the transmission power of mobile station that provides of the embodiment of the invention;
Fig. 3 is the multiplexing scene schematic diagram of two MS that the embodiment of the invention provides;
Fig. 4 is the flow chart that the control method of the transmission power of mobile station that provides of the embodiment of the invention is controlled by difference;
Fig. 5 is the flow chart that the control method of the transmission power of mobile station that provides of the embodiment of the invention is controlled by ratio;
Fig. 6 is a kind of structural representation of control device of the transmission power of mobile station that provides of the embodiment of the invention;
Fig. 7 is the another kind of structural representation of the control device of the transmission power of mobile station that provides of the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
The embodiment of the invention provides a kind of control method of transmission power of mobile station, referring to Fig. 2, specifically comprises:
201: the signal that obtains two travelling carriages;
202: adjust the transmitting power of above-mentioned two travelling carriages, it is first pre-conditioned that the difference of the signal strength signal intensity of above-mentioned two travelling carriages is satisfied; Perhaps adjust the transmitting power of above-mentioned two travelling carriages, it is second pre-conditioned that the ratio of the signal strength signal intensity of above-mentioned two travelling carriages is satisfied.
Technical scheme in the embodiment of the invention goes for the multiplexing scene of MS, comprises two multiplexing scenes of the multiplexing and a plurality of MS of MS.When a plurality of MS are multiplexing, can adopt when multiplexing identical means to carry out power control with two MS for wherein any two MS.Referring to Fig. 3, the embodiment of the invention specifically is multiplexed with example with two MS and describes, two multiplexing MS are respectively MS1 and MS2, ARFCN be 160 o'clock at time slot 3, BTS issues two paths of signals, use TSC (Training Sequence Code respectively, midamble code) be 0 and TSC be the signal that two training sequences of 5 are distinguished MS1 and MS2, shown in solid line among the figure, MS is for not one's own signal, can be used as to disturb and handle, as shown in phantom in FIG..After BTS receives signal from MS1 and MS2, produce measurement report and also send to BSC, BSC receive the back according to the strength difference scope of default received signal and or the intensity rate scope transmitting power of MS1 and MS2 is controlled.
Referring to Fig. 4, the control method of the transmission power of mobile station that the embodiment of the invention provides specifically comprises:
The 401:BSC preset signals intensity upper limit, signal strength signal intensity lower limit, the signal quality upper limit, signal quality lower limit, the signal strength difference upper limit and signal strength difference lower limit, BSC receives the measurement report from BTS, comprise information such as the intensity of the signal that comes from multiplexing MS and quality in this measurement report, specifically can comprise: BTS receives the intensity A 2 and the quality B2 of the intensity A 1 of first signal of MS1 and quality B1 and the secondary signal of the MS2 of BTS reception.
Wherein, higher limit can be set to different values as required.For example, according to simulation result signalization low intensity limit and on be limited to (60dbm,-80dbm), the signal quality lower limit and on be limited to (0 grade, 2 grades), the signal strength difference lower limit and on be limited to (5dB, 10dB) or the like, wherein signal quality grade can be set to different values as required, as 4dB etc.
Wherein, the intensity of received signal is usually expressed as the incoming level value.
BSC can also carry out preliminary treatment after receiving measurement report: carry out the influence of the part measurement report that interpolation loses with counteracting, carry out filtering with instable influence of chance of offset measurement report or the like, thereby guarantee the accuracy and the authenticity of measurement report, carry out power control better.
402:BSC judges A1 whether between the signal strength signal intensity upper limit and signal strength signal intensity lower limit, if then do not adjust the transmitting power of MS1; If A1 is higher than the signal strength signal intensity upper limit, then reduce the transmitting power of MS1, if A1 is lower than the signal strength signal intensity lower limit, then increase the transmitting power of MS1; And judge B1 whether between the signal quality upper limit and signal quality lower limit, if then do not adjust the transmitting power of MS1; If B1 is higher than the signal quality upper limit, then reduce the transmitting power of MS1, if B1 is lower than the signal quality lower limit, then increase the transmitting power of MS1.Wherein, MS1 is carried out power adjustment order in no particular order, also can carry out simultaneously, till the transmitting power of MS1 satisfies the requirement of signal strength signal intensity and signal quality simultaneously according to signal strength signal intensity and signal quality.
403:BSC judges A2 whether between the signal strength signal intensity upper limit and signal strength signal intensity lower limit, if then do not adjust the transmitting power of MS2; If A2 is higher than the signal strength signal intensity upper limit, then reduce the transmitting power of MS2, if A2 is lower than the signal strength signal intensity lower limit, then increase the transmitting power of MS2; And judge B2 whether between the signal quality upper limit and signal quality lower limit, if then do not adjust the transmitting power of MS2; If B2 is higher than the signal quality upper limit, then reduce the transmitting power of MS2, if B2 is lower than the signal quality lower limit, then increase the transmitting power of MS2.Wherein, MS2 is carried out power adjustment order in no particular order, also can carry out simultaneously, till the transmitting power of MS2 satisfies the requirement of signal strength signal intensity and signal quality simultaneously according to signal strength signal intensity and signal quality.
Particularly, when increasing transmitting power, the performance number that can increase is set to: the intensity of (the signal strength signal intensity upper limit+signal strength signal intensity lower limit)/2-received signal; When reducing transmitting power, the performance number that can reduce is set to: the intensity of received signal-(the signal strength signal intensity upper limit+signal strength signal intensity lower limit)/2.
The difference from the signal strength signal intensity of two travelling carriages that 404:BSC calculate to receive is supposed A1＞A2, then subtracts each other with the two to obtain difference A1-A2.
405: according to difference that calculates and above-mentioned difference range, judge that this difference A1-A2 is whether between the default signal strength difference upper limit and signal strength difference lower limit, if, then BSC not to the above-mentioned first time adjusted two MS transmitting power adjust once more, flow process can finish; If this difference A1-A2 is higher than the signal strength difference upper limit, then carry out 406; If this difference A1-A2 is lower than the signal strength difference lower limit, then carry out 407.
406: according to the direction that reduces above-mentioned difference the transmitting power of adjusted two MS of the power first time is adjusted, particularly, can satisfied under the condition that B1 and B2 all be not less than the signal quality lower limit, reduce the transmitting power of adjusted MS1 for the first time.
Further, reduce the transmitting power of MS1 after, can also comprise:
If A1 reaches the signal strength signal intensity lower limit and difference A1-A2 still is higher than the signal strength difference upper limit, then increase the transmitting power of adjusted MS2 for the first time, be not higher than the signal strength difference upper limit or A2 reaches the signal strength signal intensity upper limit or B2 reaches the signal quality upper limit up to difference A1-A2, finish then.
407: according to the direction that increases above-mentioned difference the transmitting power of adjusted two MS is for the first time adjusted, particularly, can be reduced the transmitting power of adjusted MS2 for the first time satisfying under the condition that B1 and B2 all be not less than the signal quality lower limit.
Further, reduce the transmitting power of MS2 after, can also comprise:
If A2 reaches the signal strength signal intensity lower limit and difference A1-A2 still is lower than the signal strength difference lower limit, then increase the transmitting power of adjusted MS1 for the first time, be not less than the signal strength difference lower limit or A1 reaches the signal strength signal intensity upper limit or B1 reaches the signal quality upper limit up to difference A1-A2, finish then.
When the difference that calculates did not satisfy default scope, the preferential mode of the transmitting power that reduces a MS that adopts was adjusted in the present embodiment, considered to increase the mode of the transmitting power of another MS and then and adjusted.
In the process of the transmitting power of two travelling carriages of above-mentioned control, comprise the process that jointly controls the control and the second time respectively separately for the first time, if the transmission power level that increases or reduce surpasses default maximum step-length, then increase or reduce transmitting power according to maximum step-length; If do not surpass default maximum step-length, then increase or reduce the transmitting power of travelling carriage according to the value of Practical Calculation.For example, default maximum step-length is 2dB, increase if desired or when reducing 1dB, then adjust according to this value 1dB, increase or reduce 3dB if desired, this value has surpassed maximum step-length, then adjust according to maximum step-length 2dB, this adjustment does not also satisfy condition, and then adjusts once more, and each amplitude of adjusting all can not surpass maximum step-length.In addition, can also be provided with respectively according to signal strength signal intensity and carry out the maximum step-length of power when adjusting, carry out the maximum step-length of power when adjusting, and carry out the maximum step-length of power when adjusting according to signal strength difference according to signal quality, three kinds of maximum step-lengths can be identical, also can be different.
The difference that present embodiment receives the signal strength signal intensity of multiplexing travelling carriage according to the base station is united multiplexing travelling carriage is carried out power control, suppressed to disturb between the multiplexing signal excessive possibility effectively, improved demodulation performance, improved multiplexing effect, made the MUROS technology when improving voice capacity, also guarantee quality of service.Control by separately multiplexing travelling carriage being carried out power earlier, and then jointly control, can further improve the accuracy of control, greatly improve the performance of system.Pay the utmost attention to the transmitting power that reduces one of them travelling carriage when adjusting power, in the resource that ensures signal quality and saved MS when being in the zone of reasonableness, for the power consumption that reduces MS, the stand-by time etc. that increases MS is all beneficial.
With BSC the signal strength signal intensity of two MS is got difference in the method shown in Figure 4 and carry out corresponding judgment, this mode can also replace with alternate manner, and as the mode of ratio calculated, following mask body illustrates.
Referring to Fig. 5, the control method of the transmission power of mobile station that the embodiment of the invention provides can also specifically comprise:
501 and 401 difference is that BSC is the preset signals strength difference upper limit and signal strength difference lower limit not, but the preset signals intensity rate upper limit and signal intensity rate lower limit, remaining is all identical with 401; 502 is identical with 402, and 503 is identical with 403, repeats no more herein.
The ratio from the signal strength signal intensity of two travelling carriages that 504:BSC calculate to receive is supposed A1＜A2, and then ratio is A1/A2.
505: according to ratio that calculates and default ratio range, judge that this ratio A1/A2 is whether between the default signal intensity rate upper limit and signal intensity rate lower limit, if, then BSC not to the above-mentioned first time adjusted two MS transmitting power adjust once more, flow process can finish; If this ratio A1/A2 is higher than the signal intensity rate upper limit, then carry out 506; If this ratio A1/A2 is lower than the signal intensity rate lower limit, then carry out 507.
506: according to the direction that reduces above-mentioned ratio the transmitting power of adjusted two MS is for the first time adjusted, particularly, can be reduced the transmitting power of adjusted MS1 for the first time satisfying under the condition that B1 and B2 all be not less than the signal quality lower limit.
Further, reduce the transmitting power of MS1 after, can also comprise:
If A1 reaches the signal strength signal intensity lower limit and ratio A1/A2 still is higher than the signal intensity rate upper limit, then increase the transmitting power of adjusted MS2 for the first time, be not higher than the signal intensity rate upper limit or A2 reaches the signal strength signal intensity upper limit or B2 reaches the signal quality upper limit up to ratio A1/A2, finish then.
507: according to the direction that increases above-mentioned ratio the transmitting power of adjusted two MS is for the first time adjusted, particularly, can be reduced the transmitting power of adjusted MS2 for the first time satisfying under the condition that B1 and B2 all be not less than the signal quality lower limit.
Further, reduce the transmitting power of MS2 after, can also comprise:
If A2 reaches the signal strength signal intensity lower limit and ratio A1/A2 still is lower than the signal intensity rate lower limit, then increase the transmitting power of adjusted MS1 for the first time, be not less than the signal intensity rate lower limit or A1 reaches the signal strength signal intensity upper limit or B1 reaches the signal quality upper limit up to ratio A1/A2, finish then.
When the ratio that calculates did not satisfy default scope, the preferential mode of the transmitting power that reduces a MS that adopts was adjusted in the present embodiment, considered to increase the mode of the transmitting power of another MS and then and adjusted.
In the process of the transmitting power of two travelling carriages of above-mentioned control, comprise the process that jointly controls the control and the second time respectively separately for the first time, if the transmission power level that increases or reduce surpasses default maximum step-length, then increase or reduce transmitting power according to maximum step-length.In addition, can also be provided with respectively according to signal strength signal intensity and carry out the maximum step-length of power when adjusting, carry out the maximum step-length of power when adjusting, and carry out the maximum step-length of power when adjusting according to signal intensity rate according to signal quality, three kinds of maximum step-lengths can be identical, also can be different.
The ratio that present embodiment receives the signal strength signal intensity of multiplexing travelling carriage according to the base station is united multiplexing travelling carriage is carried out power control, suppressed to disturb between the multiplexing signal excessive possibility effectively, improved demodulation performance, improved multiplexing effect, made the MUROS technology when improving voice capacity, also guarantee quality of service.Control by separately multiplexing travelling carriage being carried out power earlier, and then jointly control, can further improve the accuracy of control, greatly improve the performance of system.Pay the utmost attention to the transmitting power that reduces one of them travelling carriage when adjusting power, in the resource that ensures signal quality and saved MS when being in the zone of reasonableness, for the power consumption that reduces MS, the stand-by time etc. that increases MS is all beneficial.
Referring to Fig. 6, the embodiment of the invention also provides a kind of control device of transmission power of mobile station, specifically comprises:
Jointly control module 602, be used to adjust the transmitting power of above-mentioned two travelling carriages, it is first pre-conditioned that the difference of the signal strength signal intensity of above-mentioned two travelling carriages that acquisition module 601 obtains is satisfied; Perhaps adjust the transmitting power of above-mentioned two travelling carriages, it is second pre-conditioned that the ratio of the signal strength signal intensity of above-mentioned two travelling carriages is satisfied.
Further, said apparatus also comprises:
Signal strength signal intensity control module 603, whether the signal strength signal intensity of any travelling carriage that is used for judging described two travelling carriages is between the default signal strength signal intensity upper limit and default signal strength signal intensity lower limit, if the signal strength signal intensity of described travelling carriage is higher than the described default signal strength signal intensity upper limit, then reduce the transmitting power of described travelling carriage, if the signal strength signal intensity of described travelling carriage is lower than described default signal strength signal intensity lower limit, then increase the transmitting power of described travelling carriage;
With or,
Signal quality control module 604, whether the signal quality of any travelling carriage that is used for judging described two travelling carriages is between the default signal quality upper limit and signal quality lower limit, if the signal quality of described travelling carriage is higher than the described default signal quality upper limit, then reduce the transmitting power of described travelling carriage, if the signal quality of described travelling carriage is lower than described default signal quality lower limit, then increase the transmitting power of described travelling carriage.Be illustrated in figure 7 as the situation that comprises signal strength signal intensity control module 603 and signal quality control module 604 simultaneously.
When above-mentioned first pre-conditioned the comprising: in limited time, jointly control module 602 in the device shown in Figure 6 and specifically comprise under the default signal strength difference upper limit and the default signal strength difference:
The first difference processing unit is used for difference when the signal strength signal intensity of above-mentioned two travelling carriages and is higher than on the default signal strength difference in limited time, according to the direction of the difference of the signal strength signal intensity that reduces above-mentioned two travelling carriages, adjusts the transmitting power of above-mentioned two travelling carriages;
The second difference processing unit is used for difference when the signal strength signal intensity of above-mentioned two travelling carriages and is lower than under the default signal strength difference in limited time, according to the direction of the difference of the signal strength signal intensity that increases above-mentioned two travelling carriages, adjusts the transmitting power of above-mentioned two travelling carriages.
Comprise the first difference processing unit and the second difference processing unit when jointly controlling module 602, and the difference of the signal strength signal intensity of above-mentioned two travelling carriages be the signal strength signal intensity of first travelling carriage in above-mentioned two travelling carriages signal strength signal intensity that deducts second travelling carriage as a result the time, further, the first difference processing unit specifically is used for difference when the signal strength signal intensity of above-mentioned two travelling carriages and is higher than on the default signal strength difference in limited time, all be not less than under the condition of default signal quality lower limit at the signal quality that satisfies first travelling carriage and the signal quality of second travelling carriage, reduce the transmitting power of first travelling carriage;
And the second difference processing unit specifically is used for difference when the signal strength signal intensity of above-mentioned two travelling carriages and is lower than under the default signal strength difference in limited time, all be not less than under the condition of default signal quality lower limit at the signal quality that satisfies first travelling carriage and the signal quality of second travelling carriage, reduce the transmitting power of second travelling carriage.
When the first difference processing unit reduces the transmitting power of first travelling carriage, further, above-mentionedly jointly control module 602 and also comprise:
The 3rd difference processing unit, be used for after the first difference processing unit reduces the transmitting power of first travelling carriage, if the signal strength signal intensity of first travelling carriage reaches default signal strength signal intensity lower limit, and the difference of the signal strength signal intensity of above-mentioned two travelling carriages still is higher than the default signal strength difference upper limit, then increase the transmitting power of second travelling carriage, the signal strength signal intensity that is not higher than the default signal strength difference upper limit or second travelling carriage up to the signal strength difference of above-mentioned two travelling carriages reaches the default signal strength signal intensity upper limit or the signal quality of second travelling carriage reaches the default signal quality upper limit.
When the second difference processing unit reduces the transmitting power of second travelling carriage, further, above-mentionedly jointly control module 602 and also comprise:
The 4th difference processing unit, be used for after the second difference processing unit reduces the transmitting power of second travelling carriage, if the signal strength signal intensity of second travelling carriage reaches default signal strength signal intensity lower limit, and the signal strength difference of above-mentioned two travelling carriages still is lower than default signal strength difference lower limit, then increase the transmitting power of first travelling carriage, the signal strength signal intensity that is not less than the default signal strength difference lower limit or first travelling carriage up to the signal strength difference of above-mentioned two travelling carriages reaches the default signal strength signal intensity upper limit or the signal quality of first travelling carriage reaches the default signal quality upper limit.
In addition, in device shown in Figure 6, prescribe a time limit down, jointly control module 602 and specifically comprise when the second pre-conditioned default signal intensity rate upper limit and the default signal intensity rate of comprising:
The first ratio processing unit is used for ratio when the signal strength signal intensity of above-mentioned two travelling carriages and is higher than on the default signal intensity rate in limited time, according to the direction of the ratio of the signal strength signal intensity that reduces above-mentioned two travelling carriages, adjusts the transmitting power of above-mentioned two travelling carriages;
The second ratio processing unit is used for ratio when the signal strength signal intensity of above-mentioned two travelling carriages and is lower than default signal intensity rate under in limited time, according to the direction of the ratio of the signal strength signal intensity of above-mentioned two travelling carriages of increase, adjusts the transmitting power of above-mentioned two travelling carriages.
Comprise the first ratio processing unit and the second ratio processing unit when jointly controlling module 602, and the ratio of the signal strength signal intensity of above-mentioned two travelling carriages for the signal strength signal intensity of first travelling carriage in above-mentioned two travelling carriages divided by the signal strength signal intensity of second travelling carriage as a result the time, further, the first ratio processing unit specifically is used for ratio when the signal strength signal intensity of above-mentioned two travelling carriages and is higher than on the default signal intensity rate in limited time, all be not less than under the condition of default signal quality lower limit at the signal quality that satisfies first travelling carriage and the signal quality of second travelling carriage, reduce the transmitting power of first travelling carriage;
And the second ratio processing unit specifically is used for ratio when the signal strength signal intensity of above-mentioned two travelling carriages and is lower than default signal intensity rate under and prescribes a time limit, all be not less than under the condition of default signal quality lower limit at the signal quality that satisfies first travelling carriage and the signal quality of second travelling carriage, reduce the transmitting power of second travelling carriage.
When the first ratio processing unit reduces the transmitting power of first travelling carriage, further, jointly control module 602 and also comprise:
The 3rd ratio processing unit, be used for after the first ratio processing unit reduces the transmitting power of first travelling carriage, if the signal strength signal intensity of first travelling carriage reaches default signal strength signal intensity lower limit, and the ratio of the signal strength signal intensity of above-mentioned two travelling carriages still is higher than the default signal intensity rate upper limit, then increase the transmitting power of second travelling carriage, the signal strength signal intensity that is not higher than the default signal intensity rate upper limit or second travelling carriage up to the ratio of the signal strength signal intensity of above-mentioned two travelling carriages reaches the default signal strength signal intensity upper limit or the signal quality of second travelling carriage reaches the default signal quality upper limit.
When the second ratio processing unit reduces the transmitting power of second travelling carriage, further, jointly control module 602 and also comprise:
The 4th ratio processing unit, be used for after the second ratio processing unit reduces the transmitting power of second travelling carriage, if the signal strength signal intensity of second travelling carriage reaches default signal strength signal intensity lower limit, and the ratio of the signal strength signal intensity of above-mentioned two travelling carriages still is lower than default signal intensity rate lower limit, then increase the transmitting power of first travelling carriage, the signal strength signal intensity that is not less than the default signal intensity rate lower limit or first travelling carriage up to the ratio of the signal strength signal intensity of above-mentioned two travelling carriages reaches the default signal strength signal intensity upper limit or the signal quality of first travelling carriage reaches the default signal quality upper limit.
Device in the present embodiment can be applied among the BSC.
Present embodiment is united according to the difference of the signal strength signal intensity of two travelling carriages that receive or ratio two travelling carriages is carried out power control, suppressed to disturb between the signal excessive possibility effectively, improved demodulation performance for multiplexing travelling carriage, improved multiplexing effect, made the MUROS technology when improving voice capacity, also guarantee quality of service.Control by separately two travelling carriages being carried out power earlier, and then jointly control, can further improve the accuracy of control, greatly improve the performance of system.Pay the utmost attention to the transmitting power that reduces one of them travelling carriage when adjusting power, in the resource that ensures signal quality and saved MS when being in the zone of reasonableness, for the power consumption that reduces MS, the stand-by time etc. that increases MS is all beneficial.
The embodiment of the invention can utilize software to realize that corresponding software programs can be stored in the storage medium that can read, for example, and in the hard disk of BSC, buffer memory or the CD.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1, a kind of control method of transmission power of mobile station is characterized in that, described method comprises:
Obtain the signal of two travelling carriages;
Adjust the transmitting power of described two travelling carriages, it is first pre-conditioned that the difference of the signal strength signal intensity of described two travelling carriages is satisfied; Perhaps,
Adjust the transmitting power of described two travelling carriages, it is second pre-conditioned that the ratio of the signal strength signal intensity of described two travelling carriages is satisfied.
2, the control method of transmission power of mobile station according to claim 1 is characterized in that, in the transmitting power of described two travelling carriages of described adjustment, make the difference of the signal strength signal intensity of described two travelling carriages satisfy first pre-conditioned before; Perhaps, in the transmitting power of described two travelling carriages of described adjustment, make the ratio of the signal strength signal intensity of described two travelling carriages satisfy second pre-conditioned before, also comprise:
The signal strength signal intensity of judging any travelling carriage in described two travelling carriages whether between the default signal strength signal intensity upper limit and default signal strength signal intensity lower limit,
If the signal strength signal intensity of described travelling carriage is higher than the described default signal strength signal intensity upper limit, then reduce the transmitting power of described travelling carriage,
If the signal strength signal intensity of described travelling carriage is lower than described default signal strength signal intensity lower limit, then increase the transmitting power of described travelling carriage;
With or, the signal quality of judging any travelling carriage in described two travelling carriages whether between the default signal quality upper limit and default signal quality lower limit,
If the signal quality of described travelling carriage is higher than the described default signal quality upper limit, then reduce the transmitting power of described travelling carriage,
If the signal quality of described travelling carriage is lower than described default signal quality lower limit, then increase the transmitting power of described travelling carriage.
3, the control method of transmission power of mobile station according to claim 1 is characterized in that,
Described first pre-conditioned the comprising: the default signal strength difference upper limit and default signal strength difference lower limit;
The transmitting power of described two travelling carriages of described adjustment, it is first pre-conditioned that the difference of the signal strength signal intensity of described two travelling carriages is satisfied, and comprising:
When the difference of the signal strength signal intensity of described two travelling carriages is higher than on the described default signal strength difference in limited time,, adjust the transmitting power of described two travelling carriages according to the direction of the difference of the signal strength signal intensity that reduces described two travelling carriages;
When the difference of the signal strength signal intensity of described two travelling carriages is lower than under the described default signal strength difference in limited time,, adjust the transmitting power of described two travelling carriages according to the direction of the difference of the signal strength signal intensity that increases described two travelling carriages.
4, the control method of transmission power of mobile station according to claim 3 is characterized in that,
The difference of the signal strength signal intensity of described two travelling carriages is the result that the signal strength signal intensity of first travelling carriage in described two travelling carriages deducts the signal strength signal intensity of second travelling carriage;
The direction of described difference according to the signal strength signal intensity that reduces described two travelling carriages is adjusted the transmitting power of described two travelling carriages, specifically comprises:
Signal quality at signal quality that satisfies described first travelling carriage and described second travelling carriage all is not less than under the condition of default signal quality lower limit, reduces the transmitting power of described first travelling carriage;
The direction of described difference according to the signal strength signal intensity that increases described two travelling carriages is adjusted the transmitting power of described two travelling carriages, specifically comprises:
All be not less than at the signal quality of signal quality that satisfies described first travelling carriage and described second travelling carriage under the condition of described default signal quality lower limit, reduce the transmitting power of described second travelling carriage.
5, the control method of transmission power of mobile station according to claim 4 is characterized in that, after the described transmitting power that reduces described first travelling carriage, also comprises:
If the signal strength signal intensity of described first travelling carriage reaches default signal strength signal intensity lower limit, and the difference of the signal strength signal intensity of described two travelling carriages still is higher than the described default signal strength difference upper limit, then increase the transmitting power of described second travelling carriage, the signal strength signal intensity that is not higher than the described default signal strength difference upper limit or described second travelling carriage up to the difference of the signal strength signal intensity of described two travelling carriages reaches the default signal strength signal intensity upper limit or the signal quality of described second travelling carriage reaches the default signal quality upper limit.
6, the control method of transmission power of mobile station according to claim 4 is characterized in that, after the described transmitting power that reduces described second travelling carriage, also comprises:
If the signal strength signal intensity of described second travelling carriage reaches default signal strength signal intensity lower limit, and the difference of the signal strength signal intensity of described two travelling carriages still is lower than described default signal strength difference lower limit, then increase the transmitting power of described first travelling carriage, the signal strength signal intensity that is not less than described default signal strength difference lower limit or described first travelling carriage up to the difference of the signal strength signal intensity of described two travelling carriages reaches the default signal strength signal intensity upper limit or the signal quality of described first travelling carriage reaches the default signal quality upper limit.
7, the control method of transmission power of mobile station according to claim 1 is characterized in that,
Described second pre-conditioned the comprising: the default signal intensity rate upper limit and default signal intensity rate lower limit;
The transmitting power of described two travelling carriages of described adjustment, it is second pre-conditioned that the ratio of the signal strength signal intensity of described two travelling carriages is satisfied, and specifically comprises:
When the ratio of the signal strength signal intensity of described two travelling carriages is higher than on the described default signal intensity rate in limited time,, adjust the transmitting power of described two travelling carriages according to the direction of the ratio of the signal strength signal intensity that reduces described two travelling carriages;
When the ratio of the signal strength signal intensity of described two travelling carriages is lower than under the described default signal intensity rate in limited time,, adjust the transmitting power of described two travelling carriages according to the direction of the ratio of the signal strength signal intensity that increases described two travelling carriages.
8, the control method of transmission power of mobile station according to claim 7 is characterized in that,
The ratio of the signal strength signal intensity of described two travelling carriages is the result of the signal strength signal intensity of first travelling carriage in described two travelling carriages divided by the signal strength signal intensity of second travelling carriage;
The direction of described ratio according to the signal strength signal intensity that reduces described two travelling carriages is adjusted the transmitting power of described two travelling carriages, specifically comprises:
Signal quality at signal quality that satisfies described first travelling carriage and described second travelling carriage all is not less than under the condition of default signal quality lower limit, reduces the transmitting power of described first travelling carriage;
The direction of described ratio according to the signal strength signal intensity that increases described two travelling carriages is adjusted the transmitting power of described two travelling carriages, specifically comprises:
All be not less than at the signal quality of signal quality that satisfies described first travelling carriage and described second travelling carriage under the condition of described default signal quality lower limit, reduce the transmitting power of described second travelling carriage.
9, the control method of transmission power of mobile station according to claim 8 is characterized in that, after the described transmitting power that reduces described first travelling carriage, also comprises:
If the signal strength signal intensity of described first travelling carriage reaches default signal strength signal intensity lower limit, and the ratio of the signal strength signal intensity of described two travelling carriages still is higher than the described default signal intensity rate upper limit, then increase the transmitting power of described second travelling carriage, the signal strength signal intensity that is not higher than the described default signal intensity rate upper limit or described second travelling carriage up to the ratio of the signal strength signal intensity of described two travelling carriages reaches the default signal strength signal intensity upper limit or the signal quality of described second travelling carriage reaches the default signal quality upper limit.
10, the control method of transmission power of mobile station according to claim 8 is characterized in that, after the described transmitting power that reduces described second travelling carriage, also comprises:
If the signal strength signal intensity of described second travelling carriage reaches default signal strength signal intensity lower limit, and the ratio of the signal strength signal intensity of described two travelling carriages still is lower than described default signal intensity rate lower limit, then increase the transmitting power of described first travelling carriage, the signal strength signal intensity that is not less than described default signal intensity rate lower limit or described first travelling carriage up to described ratio reaches the default signal strength signal intensity upper limit or the signal quality of described first travelling carriage reaches the default signal quality upper limit.
According to the control method of the described transmission power of mobile station of arbitrary claim in the claim 1 to 10, it is characterized in that 11, described two travelling carriages are two multiplexing travelling carriages.
12, a kind of control device of transmission power of mobile station is characterized in that, described device comprises:
Acquisition module is used to obtain the signal of two travelling carriages;
Jointly control module, be used to adjust the transmitting power of described two travelling carriages, it is first pre-conditioned that the difference of the signal strength signal intensity of described two travelling carriages that described acquisition module obtains is satisfied; Perhaps adjust the transmitting power of described two travelling carriages, it is second pre-conditioned that the ratio of the signal strength signal intensity of described two travelling carriages is satisfied.
13, the control device of transmission power of mobile station according to claim 12 is characterized in that, described device also comprises:
The signal strength signal intensity control module, whether the signal strength signal intensity of any travelling carriage that is used for judging described two travelling carriages is between the default signal strength signal intensity upper limit and default signal strength signal intensity lower limit, if the signal strength signal intensity of described travelling carriage is higher than the described default signal strength signal intensity upper limit, then reduce the transmitting power of described travelling carriage, if the signal strength signal intensity of described travelling carriage is lower than described default signal strength signal intensity lower limit, then increase the transmitting power of described travelling carriage;
With or,
The signal quality control module, whether the signal quality of any travelling carriage that is used for judging described two travelling carriages is between the default signal quality upper limit and signal quality lower limit, if the signal quality of described travelling carriage is higher than the described default signal quality upper limit, then reduce the transmitting power of described travelling carriage, if the signal quality of described travelling carriage is lower than described default signal quality lower limit, then increase the transmitting power of described travelling carriage.
14, the control device of transmission power of mobile station according to claim 12 is characterized in that,
Described first pre-conditioned the comprising: the default signal strength difference upper limit and default signal strength difference lower limit;
Describedly jointly control module and specifically comprise:
The first difference processing unit, being used for difference when the signal strength signal intensity of described two travelling carriages is higher than on the described default signal strength difference in limited time, according to the direction of the difference of the signal strength signal intensity that reduces described two travelling carriages, adjust the transmitting power of described two travelling carriages;
The second difference processing unit, being used for difference when the signal strength signal intensity of described two travelling carriages is lower than under the described default signal strength difference in limited time, according to the direction of the difference of the signal strength signal intensity that increases described two travelling carriages, adjust the transmitting power of described two travelling carriages.
15, the control device of transmission power of mobile station according to claim 12 is characterized in that,
Described second pre-conditioned the comprising: the default signal intensity rate upper limit and default signal intensity rate lower limit;
Describedly jointly control module and specifically comprise:
The first ratio processing unit, being used for ratio when the signal strength signal intensity of described two travelling carriages is higher than on the described default signal intensity rate in limited time, according to the direction of the ratio of the signal strength signal intensity that reduces described two travelling carriages, adjust the transmitting power of described two travelling carriages;
The second ratio processing unit, being used for ratio when the signal strength signal intensity of described two travelling carriages is lower than described default signal intensity rate under and prescribes a time limit, according to the direction of the ratio of the signal strength signal intensity that increases described two travelling carriages, adjust the transmitting power of described two travelling carriages.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011035708A1 (en) * | 2009-09-25 | 2011-03-31 | 华为技术有限公司 | Handover control method and wireless communication base station |
| CN102300302A (en) * | 2010-06-24 | 2011-12-28 | 中兴通讯股份有限公司 | Method and device for controlling joint power |
| WO2015042854A1 (en) * | 2013-09-27 | 2015-04-02 | 华为技术有限公司 | Method and device for adjusting sending power |
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| US6208873B1 (en) * | 1998-11-23 | 2001-03-27 | Qualcomm Incorporated | Method and apparatus for transmitting reverse link power control signals based on the probability that the power control command is in error |
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| US7657278B2 (en) * | 2005-07-27 | 2010-02-02 | Interdigital Technology Corporation | Method and apparatus for deriving a combined transmit power control command during handover |
| CN101110604A (en) * | 2006-07-18 | 2008-01-23 | 华为技术有限公司 | Method and equipment for transmitting multi-user multiplexing data in radio communication system |
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| WO2011035708A1 (en) * | 2009-09-25 | 2011-03-31 | 华为技术有限公司 | Handover control method and wireless communication base station |
| CN102300302A (en) * | 2010-06-24 | 2011-12-28 | 中兴通讯股份有限公司 | Method and device for controlling joint power |
| EP2557862A4 (en) * | 2010-06-24 | 2015-09-23 | Zte Corp | Joint power control method in multi-user multiplexing technique and apparatus thereof |
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| CN104735766B (en) * | 2013-12-23 | 2019-01-04 | 联芯科技有限公司 | The Poewr control method and device of fractional dedicated physical channel |
| CN107682924A (en) * | 2017-09-30 | 2018-02-09 | 中国科学院计算技术研究所 | A kind of link scheduling method and system suitable for long delay SIC networks |
| CN107682924B (en) * | 2017-09-30 | 2020-01-07 | 中国科学院计算技术研究所 | Link scheduling method and system suitable for long-delay SIC network |
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