CN103152811B - Method and device for adjusting power value - Google Patents
Method and device for adjusting power value Download PDFInfo
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- CN103152811B CN103152811B CN201310068231.1A CN201310068231A CN103152811B CN 103152811 B CN103152811 B CN 103152811B CN 201310068231 A CN201310068231 A CN 201310068231A CN 103152811 B CN103152811 B CN 103152811B
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Abstract
The embodiment of the invention relates to the technical field of wireless communication, in particular to a method and a device for adjusting a power value, and is applied to reduction of the deviation of power values of transmitted signals corresponding to each antenna. The method for adjusting the power value provided by the embodiment of the invention comprises the following steps of: determining a reference signal corresponding to an N-th to-be-transmitted signal according to the N-th to-be-transmitted signal of an antenna with the adjusted power value; determining the power value of a low-frequency signal corresponding to the reference signal; determining a reference power value according to the power values of a plurality of low-frequency signals corresponding to a plurality of antennae; determining a power adjustment value of an (N+i)-th to-be-transmitted signal corresponding to an antenna according to the reference power value; and adjusting the power value of the (N+i)-th to-be-transmitted signal corresponding to the antenna according to the determined power adjustment value of the (N+i)-th to-be-transmitted signal corresponding to the antenna. By the method and the device provided by the embodiment of the invention, the deviation of the power values of the transmitted signals corresponding to each antenna can be reduced.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method and apparatus of Modulating Power value.
Background technology
MIMO(Multiple-Input Multiple-Output, multiple-input and multiple-output) system refers to that transmitting terminal and receiving terminal all have employed the communication system of multiple antenna or aerial array.Mimo system is relative to SISO(Single-Input Single-Output, single-input single-output) system has lot of advantages, such as, improve the availability of frequency spectrum, improve capacity and the reliability of channel, realize the data service etc. transmitting higher rate under limited frequency band, thus mimo system obtains and develops fast.
In mimo systems, deviation between the performance number of the signal of going out from each antenna transmission has a significant impact the transmission capacity of mimo system and receiving sensitivity, when deviation between the performance number of the signal of going out from each antenna transmission is 0, transmission capacity and the receiving sensitivity of mimo system are maximum, along with the deviation between the performance number transmitted that each antenna is corresponding increases gradually, transmission capacity and the receiving sensitivity of mimo system decline gradually.The current path corresponding for each antenna (such as, transmitting terminal is base station system, the path that then antenna is corresponding is the transmission path between base station to antenna) the larger situation of performance gap, can relatively large deviation be there is between the performance number transmitted that each antenna is corresponding, and also there is no at present a kind of method reducing deviation between the performance number transmitted corresponding to each antenna.
In sum, a kind of method reducing deviation between the performance number transmitted corresponding to each antenna is not also had at present.
Summary of the invention
Embodiments provide a kind of method and apparatus of Modulating Power value, in order to reduce the deviation between the performance number transmitted corresponding to each antenna.
The method of a kind of Modulating Power value that the embodiment of the present invention provides, comprising:
For the antenna of in many antennas, according to N number of signal to be transmitted of this antenna after performance number adjustment, determine the reference signal that N number of signal to be transmitted is corresponding; And determine the performance number of the low frequency signal that reference signal is corresponding;
According to the performance number of multiple low frequency signals corresponding to the many antennas determined, determine reference power value;
For the antenna of in many antennas, according to reference power value, determine the power adjustment of N+i the signal to be transmitted that this antenna is corresponding; And according to the power adjustment of N+i signal to be transmitted corresponding to this antenna determined, the performance number of N+i signal to be transmitted corresponding to this antenna is adjusted;
Wherein, N and i is positive integer.
The device of a kind of Modulating Power value that the embodiment of the present invention provides, comprise a processor, multiple splitter, multiple wave detector and multiple controller, the corresponding antenna of one of them splitter, the corresponding antenna of wave detector, the corresponding antenna of controller;
Splitter, for for corresponding with splitter antenna, according to N number of signal to be transmitted of this antenna after performance number adjustment, determines the reference signal that N number of signal to be transmitted is corresponding; And the reference signal determined is sent to the wave detector that this antenna is corresponding;
Wave detector, for according to the reference signal received, determines the performance number of the low frequency signal that reference signal is corresponding; And the performance number of the low frequency signal determined is sent to processor;
Processor, for the performance number according to the multiple low frequency signals from multiple wave detector received, determines reference power value; And the reference power value determined is sent to multiple controller;
Controller, for according to the reference power value carrying out self processor received, determines the power adjustment of N+i signal to be transmitted of the antenna that controller is corresponding; And the power adjustment of N+i signal to be transmitted according to this antenna determined, the performance number of N+i signal to be transmitted of this antenna is adjusted;
Wherein, N and i is positive integer.
The method of the Modulating Power value that the embodiment of the present invention provides comprises: for the antenna of in many antennas, according to N number of signal to be transmitted of this antenna after performance number adjustment, determines the reference signal that N number of signal to be transmitted is corresponding; And determine the performance number of the low frequency signal that reference signal is corresponding; According to the performance number of multiple low frequency signals corresponding to the many antennas determined, determine reference power value; For the antenna of in many antennas, according to reference power value, determine the power adjustment of N+i the signal to be transmitted that this antenna is corresponding; And according to the power adjustment of N+i signal to be transmitted corresponding to this antenna determined, the performance number of N+i signal to be transmitted corresponding to this antenna is adjusted; Wherein, N and i is positive integer, due to the performance number according to multiple low frequency signals corresponding to the N number of signal to be transmitted of many antennas after performance number adjustment, determine reference power value, and according to reference power value, the performance number of N+i signal to be transmitted of every root antenna is adjusted, thus the deviation between the performance number reducing N+i signal to be transmitted corresponding to each antenna, and then achieve the deviation reduced between the performance number transmitted corresponding to each antenna, improve transmission capacity and the receiving sensitivity of mimo system.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method for embodiment of the present invention Modulating Power value;
Fig. 2 is the method detailed schematic flow sheet of embodiment of the present invention Modulating Power value;
Fig. 3 is the method detailed schematic flow sheet of embodiment of the present invention Modulating Power value;
Fig. 4 is the method detailed schematic flow sheet of embodiment of the present invention Modulating Power value;
Fig. 5 is the apparatus structure schematic diagram of embodiment of the present invention Modulating Power value;
Fig. 6 is the apparatus structure schematic diagram that the embodiment of the present invention comprises the Modulating Power value of transducer;
Fig. 7 is that the application of installation of embodiment of the present invention Modulating Power value is in the structural representation of mimo system.
Embodiment
In the embodiment of the present invention, the method for Modulating Power value, comprising: for the antenna of in many antennas, according to N number of signal to be transmitted of this antenna after performance number adjustment, determines the reference signal that N number of signal to be transmitted is corresponding; And determine the performance number of the low frequency signal that reference signal is corresponding; According to the performance number of multiple low frequency signals corresponding to the many antennas determined, determine reference power value; For the antenna of in many antennas, according to reference power value, determine the power adjustment of N+i the signal to be transmitted that this antenna is corresponding; And according to the power adjustment of N+i signal to be transmitted corresponding to this antenna determined, the performance number of N+i signal to be transmitted corresponding to this antenna is adjusted; Wherein, N and i is positive integer, due to the performance number according to multiple low frequency signals corresponding to the N number of signal to be transmitted of many antennas after performance number adjustment, determine reference power value, and according to reference power value, the performance number of N+i signal to be transmitted of every root antenna is adjusted, thus the deviation between the performance number reducing N+i signal to be transmitted corresponding to each antenna, and then achieve the deviation reduced between the performance number transmitted corresponding to each antenna, improve transmission capacity and the receiving sensitivity of mimo system.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
As shown in Figure 1, the method for embodiment of the present invention Modulating Power value comprises the following steps:
Step 101, for the antenna of in many antennas, according to the N number of signal to be transmitted of this antenna after performance number adjustment, determine the reference signal that N number of signal to be transmitted is corresponding; And determine the performance number of the low frequency signal that reference signal is corresponding;
Step 102, performance number according to multiple low frequency signals corresponding to the many antennas determined, determine reference power value;
Step 103, for the antenna of in many antennas, according to reference power value, determine the power adjustment of N+i the signal to be transmitted that this antenna is corresponding; And according to the power adjustment of N+i signal to be transmitted corresponding to this antenna determined, the performance number of N+i signal to be transmitted corresponding to this antenna is adjusted;
Wherein, N and i is positive integer.
Wherein, N number of signal to be transmitted that antenna is corresponding refers to the signal that N number of needs are gone out from this antenna transmission.
Preferably, in a step 101, according to N number of signal to be transmitted of this antenna after performance number adjustment, determine the reference signal that this N number of signal to be transmitted is corresponding, comprising:
This N number of signal to be transmitted after performance number being adjusted is divided into two tributary signals, and using a tributary signal in these two tributary signals as reference signal corresponding to this N number of signal to be transmitted.
Preferably, after the performance number of N number of signal to be transmitted corresponding to antenna is adjusted, also comprise:
According to the N number of signal to be transmitted after performance number adjustment, determine corresponding the N number ofly the transmitting of this antenna.
Preferably, another tributary signal in these two tributary signals is corresponding N number ofly the transmitting of this antenna.
Wherein, in a step 101, the performance number of the low frequency signal that reference signal is corresponding is magnitude of voltage or current value.
Preferably, in a step 101, when the performance number of low frequency signal corresponding to reference signal is magnitude of voltage, determines the performance number of the low frequency signal that reference signal is corresponding, comprising:
By carrying out detection process to this reference signal, determine the performance number of the low frequency signal that this reference signal is corresponding.
Preferably, in a step 101, when the performance number of low frequency signal corresponding to reference signal is current value, determines the performance number of the low frequency signal that reference signal is corresponding, comprising:
According to reference signal, determine the switching signal that reference signal is corresponding; And using the performance number of low frequency signal corresponding for switching signal as the performance number with reference to low frequency signal corresponding to signal.
Wherein, switching signal corresponding to reference signal is current signal, determine that the method for the performance number of the low frequency signal that the method for the performance number of the low frequency signal that switching signal is corresponding is corresponding with determining reference signal is similar, by carrying out detection process to this reference signal, determine the performance number of the low frequency signal that switching signal is corresponding.
Preferably, in a step 102, according to the performance number of multiple low frequency signals corresponding to the many antennas determined, determine reference power value, comprising:
Maximum in the performance number of multiple low frequency signal is defined as reference power value; Or
The mean value of the maxima and minima in the performance number of multiple low frequency signal is defined as reference power value; Or
The mean value of the performance number of multiple low frequency signal is defined as reference power value.
In enforcement, the method according to the maximum determination reference power value in the performance number of multiple low frequency signal implements than being easier to, more moderate according to the reference power value that the method for the mean value determination reference power value of the performance number of multiple low frequency signal is determined.
It should be noted that, in a step 102, according to the performance number of multiple low frequency signals corresponding to many antennas, determine that the method for reference power value has a variety of, such as, minimum value in the performance number of multiple low frequency signal is defined as reference power value, median in the performance number of multiple low frequency signal is defined as reference power value, the mean value of the maximum several values in the performance number of multiple low frequency signal is defined as reference power value, the mean value of the minimum several values in the performance number of multiple low frequency signal is defined as reference power value, the mean value of the performance number of low frequency signal corresponding for odd number root antenna is defined as reference power value, the mean value of the performance number of low frequency signal corresponding for even number root antenna is defined as reference power value etc.
Preferably, in step 103, according to reference power value, determine the power adjustment of N+i the signal to be transmitted that this antenna is corresponding, comprising:
According to the performance number of reference power value and N number of signal to be transmitted corresponding to this antenna, determine the power adjustment of N+i the signal to be transmitted that this antenna is corresponding.
Such as, suppose existence 2 antennas, i.e. antenna 1 and antenna 2, the performance number of N number of signal to be transmitted of antenna 1 correspondence is 30, and the performance number of N number of signal to be transmitted of antenna 2 correspondence is 20, determines that reference power value is 25;
Because the performance number of N number of signal to be transmitted of antenna 1 correspondence is 30, reference power value is 25, reference power value is less by 5 than the performance number of N number of signal to be transmitted of antenna 1 correspondence, the power adjustment then determining N+i signal to be transmitted of antenna 1 correspondence is-5, namely needs the performance number of N+i signal to be transmitted of antenna 1 correspondence to reduce 5;
Because the performance number of N number of signal to be transmitted of antenna 2 correspondence is 20, reference power value is 25, reference power value is than the performance number large 5 of N number of signal to be transmitted of antenna 2 correspondence, the power adjustment then determining N+i signal to be transmitted of antenna 2 correspondence is+5, and namely needing increases by 5 by the performance number of N+i signal to be transmitted of antenna 2 correspondence.
Preferably, in step 103, according to reference power value, determine the power adjustment of N+i the signal to be transmitted that this antenna is corresponding, comprising:
According to the performance number of reference power value and N number of signal to be transmitted corresponding to this antenna, determine the pre-power adjustment of N+i the signal to be transmitted that this antenna is corresponding;
According to the power adjustment of this pre-power adjustment and N-j signal to be transmitted corresponding to this antenna, determine the power adjustment of N+i the signal to be transmitted that this antenna is corresponding;
Wherein, j is the natural number being less than N.
Such as, suppose existence 2 antennas, i.e. antenna 1 and antenna 2, the performance number of N number of signal to be transmitted of antenna 1 correspondence is 30, the performance number of N number of signal to be transmitted of antenna 2 correspondence is 20, determine that reference power value is 25, the power adjustment of N number of signal to be transmitted of antenna 1 correspondence is-3, the power adjustment of N-2 signal to be transmitted of antenna 1 correspondence is-3, the N-(N-1 of antenna 1 correspondence) power adjustment of individual signal to be transmitted is 0, the power adjustment of N-2 signal to be transmitted of antenna 2 correspondence is+3, the power adjustment of N-3 signal to be transmitted of antenna 2 correspondence is+3, the N-(N-1 of antenna 2 correspondence) power adjustment of individual signal to be transmitted is 0,
For antenna 1, according to the performance number of N number of signal to be transmitted of reference power value and antenna 1 correspondence, determine that the pre-power adjustment of N+i signal to be transmitted of antenna 1 correspondence is-5; According to the power adjustment of N-j signal to be transmitted of this pre-power adjustment and antenna 1 correspondence, determine that the power adjustment of N+i signal to be transmitted of antenna 1 correspondence is-3;
For antenna 2, according to the performance number of N number of signal to be transmitted of reference power value and antenna 2 correspondence, determine that the pre-power adjustment of N+i signal to be transmitted of antenna 2 correspondence is+5; According to the power adjustment of N-j signal to be transmitted of this pre-power adjustment and antenna 2 correspondence, determine that the power adjustment of N+i signal to be transmitted of antenna 2 correspondence is+3.
Preferably, according to the power adjustment of pre-power adjustment and N-j signal to be transmitted corresponding to this antenna, determine the execution mode of the power adjustment of N+i the signal to be transmitted that this antenna is corresponding and the embodiment of the present invention performance number according to multiple low frequency signals corresponding to many antennas, determine that the execution mode of reference power value is similar, do not repeat them here.
Preferably, in step 103, i can get at least one value.For the numerous embodiments of i, will be introduced respectively below.
The value of mode one, i can be 1, namely according to reference power value, determines the power adjustment of N+1 signal to be transmitted that antenna is corresponding (after N number of signal to be transmitted that antenna is corresponding a signal to be transmitted);
The value of mode two, i can be 1 and 2, namely according to reference power value, determines the power adjustment of N+1, N+2 signal to be transmitted that antenna is corresponding (the rear section signal to be transmitted of N number of signal to be transmitted that antenna is corresponding);
The value of mode three, i can be 1,2,3 ... P(P be N number of signal to be transmitted after the number of signal to be transmitted corresponding to antenna), namely according to reference power value, the power adjustment of N+i signal to be transmitted that antenna is corresponding (after N number of signal to be transmitted that antenna is corresponding all signal to be transmitted) is determined.
In concrete enforcement, for multiple signals to be transmitted that an antenna is corresponding, the execution mode of the value of the i that the plurality of signal to be transmitted is corresponding can be identical, also can different (namely, can same way be adopted, also can adopt the random combine of mode one, mode two and mode three).
In concrete enforcement, in the execution mode of the value of j and the embodiment of the present invention, the execution mode of the value of i is similar, does not repeat them here.
Preferably, when N=1, determine the power adjustment of N number of signal to be transmitted that antenna is corresponding, comprising:
Using the power adjustment of default adjusted value as N number of signal to be transmitted corresponding to this antenna.
In concrete enforcement, default adjusted value can as required or experience setting, such as, be set as 0.
In order in detail, intactly describe the scheme of Modulating Power value of the present invention, be introduced for the mimo system that there are two antennas below, the execution mode that there is the mimo system of two antennas for the execution mode of mimo system and the embodiment of the present invention that there are other several antennas is similar.
Embodiment one:
As shown in Figure 2, the method detailed of embodiment of the present invention Modulating Power value, comprising:
Step 201, for an antenna in two antennas, using the power adjustment of default adjusted value as first signal to be transmitted corresponding to this antenna;
In concrete enforcement, the power adjustment of first signal to be transmitted of antenna 1 and antenna 2 correspondence is for presetting adjusted value.
Step 202, power adjustment according to first signal to be transmitted corresponding to this antenna determined, adjust the performance number of first signal to be transmitted corresponding to this antenna;
Step 203, performance number is adjusted after first signal to be transmitted of this antenna be divided into two tributary signals, be that corresponding first of this antenna transmits by a tributary signal in these two tributary signals, and using another tributary signal in these two tributary signals as reference signal corresponding to this first signal to be transmitted;
Wherein, after determining that corresponding first of this antenna transmits, this first is transmitted from this antenna transmission and goes out.
Step 204, according to this reference signal, determine the switching signal that this reference signal is corresponding;
Step 205, by carrying out detection process to this switching signal, determine the performance number of the low frequency signal that switching signal is corresponding, and using the performance number of low frequency signal corresponding for the switching signal determined as the performance number with reference to low frequency signal corresponding to signal;
Wherein, the performance number of the low frequency signal that this reference signal is corresponding is current value.
Step 206, the mean value of the performance number of two corresponding for two antennas low frequency signals is defined as reference power value;
Step 207, for an antenna in two antennas, according to the performance number of reference power value and first signal to be transmitted corresponding to this antenna, determine the power adjustment of second signal to be transmitted that this antenna is corresponding;
Wherein, for an antenna, according to the performance number of reference power value and first signal to be transmitted corresponding to this antenna, the power adjustment of all signals to be transmitted after first signal to be transmitted that this antenna is corresponding can be determined.
Step 208, power adjustment according to second signal to be transmitted corresponding to this antenna determined, adjust the performance number of second signal to be transmitted corresponding to this antenna;
Step 209, performance number is adjusted after second signal to be transmitted of this antenna be divided into two tributary signals, a tributary signal in these two tributary signals is transmitted as corresponding second of this antenna, and using another tributary signal in these two tributary signals as reference signal corresponding to this second signal to be transmitted.
Wherein, the execution mode adjusting the performance number of second signal to be transmitted of this antenna for the execution mode of performance number of the 3rd signal to be transmitted of this antenna of adjustment and the embodiment of the present invention is similar, does not repeat them here.
Embodiment two:
As shown in Figure 3, the method detailed of embodiment of the present invention Modulating Power value, comprising:
Step 301, for an antenna in two antennas, using the power adjustment of default adjusted value as first signal to be transmitted corresponding to this antenna;
Step 302, power adjustment according to first signal to be transmitted corresponding to this antenna determined, adjust the performance number of first signal to be transmitted corresponding to this antenna;
Step 303, performance number is adjusted after first signal to be transmitted of this antenna be divided into two tributary signals, be that corresponding first of this antenna transmits by a tributary signal in these two tributary signals, and using another tributary signal in these two tributary signals as reference signal corresponding to this first signal to be transmitted;
Step 304, by carrying out detection process to this reference signal, determine the performance number of the low frequency signal that Reference Signal is corresponding;
Wherein, the performance number of the low frequency signal that this reference signal is corresponding is magnitude of voltage.
Step 305, the maximum in the performance number of two corresponding for two antennas low frequency signals is defined as reference power value;
Step 306, for an antenna in two antennas, according to the performance number of reference power value and first signal to be transmitted corresponding to this antenna, determine the pre-power adjustment of second signal to be transmitted that this antenna is corresponding;
Step 307, power adjustment according to this pre-power adjustment and first signal to be transmitted corresponding to this antenna, determine the power adjustment of second signal to be transmitted that this antenna is corresponding;
Step 308, power adjustment according to second signal to be transmitted corresponding to this antenna determined, adjust the performance number of second signal to be transmitted corresponding to this antenna;
Step 309, performance number is adjusted after second signal to be transmitted of this antenna be divided into two tributary signals, a tributary signal in these two tributary signals is transmitted as corresponding second of this antenna, and using another tributary signal in these two tributary signals as reference signal corresponding to this second signal to be transmitted.
Wherein, the execution mode adjusting the performance number of second signal to be transmitted of this antenna for the execution mode of performance number of the 3rd signal to be transmitted of this antenna of adjustment and the embodiment of the present invention is similar, does not repeat them here.
Embodiment three:
As shown in Figure 4, the method detailed of embodiment of the present invention Modulating Power value, comprising:
Step 401, for an antenna in two antennas, using the power adjustment of default adjusted value as first signal to be transmitted corresponding to this antenna;
Step 402, power adjustment according to first signal to be transmitted corresponding to this antenna determined, adjust the performance number of first signal to be transmitted corresponding to this antenna;
Step 403, performance number is adjusted after first signal to be transmitted of this antenna be divided into two tributary signals, be that corresponding first of this antenna transmits by a tributary signal in these two tributary signals, and using another tributary signal in these two tributary signals as reference signal corresponding to this first signal to be transmitted;
Step 404, by carrying out detection process to this reference signal, determine the performance number of the low frequency signal that Reference Signal is corresponding;
Wherein, the performance number of the low frequency signal that this reference signal is corresponding is magnitude of voltage.
Step 405, the maximum in the performance number of two corresponding for two antennas low frequency signals is defined as reference power value;
Step 406, for an antenna in two antennas, according to the performance number of reference power value and first signal to be transmitted corresponding to this antenna, determine the power adjustment of second signal to be transmitted that this antenna is corresponding;
Step 407, power adjustment according to second signal to be transmitted corresponding to this antenna determined, adjust the performance number of second signal to be transmitted corresponding to this antenna;
Step 408, performance number is adjusted after second signal to be transmitted of this antenna be divided into two tributary signals, a tributary signal in these two tributary signals is transmitted as corresponding second of this antenna, and using another tributary signal in these two tributary signals as reference signal corresponding to this second signal to be transmitted;
Step 409, by carrying out detection process to this reference signal, determine the performance number of the low frequency signal that Reference Signal is corresponding;
Step 410, the maximum in the performance number of two corresponding for two antennas low frequency signals is defined as reference power value;
Step 411, for an antenna in two antennas, according to the performance number of reference power value and second signal to be transmitted corresponding to this antenna, determine the power adjustment of all signals to be transmitted after second signal to be transmitted that this antenna is corresponding;
Step 412, power adjustment according to all signals to be transmitted after second signal to be transmitted that this antenna determined is corresponding, the performance number of all signals to be transmitted after second signal to be transmitted corresponding to this antenna adjusts;
Step 413, using signal to be transmitted (signal to be transmitted after second signal to be transmitted) corresponding to this antenna after performance number adjusts as corresponding the transmitting of this antenna.
Wherein, the signal to be transmitted that this antenna after also performance number can being adjusted is corresponding is divided into two tributary signals, and using a tributary signal in these two tributary signals as corresponding the transmitting of this antenna.
Based on same inventive concept, additionally provide the device of Modulating Power value in the embodiment of the present invention, the principle of dealing with problems due to this device is similar to the method for the embodiment of the present invention, and therefore the enforcement of this device see the enforcement of method, can repeat part and repeat no more.
Fig. 5 is the structural representation of the device of embodiment of the present invention Modulating Power value, as shown in the figure, the device of the Modulating Power value of the embodiment of the present invention comprises a processor 501, multiple splitter 502, multiple wave detector 503 and multiple controller 504, the corresponding antenna of one of them splitter 502, the corresponding antenna of wave detector 503, the corresponding antenna of controller 504;
Splitter 502, for for corresponding with splitter 502 antenna, according to N number of signal to be transmitted of this antenna after performance number adjustment, determines the reference signal that N number of signal to be transmitted is corresponding; And the reference signal determined is sent to the wave detector 503 that this antenna is corresponding;
Wave detector 503, for according to the reference signal received, determines the performance number of the low frequency signal that reference signal is corresponding; And the performance number of the low frequency signal determined is sent to processor 501;
Processor 501, for the performance number according to the multiple low frequency signals from multiple wave detector 503 received, determines reference power value; And the reference power value determined is sent to multiple controller 504;
Controller 504, for according to the reference power value carrying out self processor 501 received, determines the power adjustment of N+i signal to be transmitted of an antenna of controller 504 correspondence; And the power adjustment of N+i signal to be transmitted according to this antenna determined, the performance number of N+i signal to be transmitted of this antenna is adjusted;
Wherein, N and i is positive integer.
Preferably, splitter 502, also for according to the N number of signal to be transmitted of this antenna after performance number adjustment, determines that the of this antenna N number ofly transmits.
Preferably, splitter 502 comprises coupler, power splitter or electric bridge.
Wherein, the performance number of the low frequency signal that reference signal is corresponding is magnitude of voltage or current value.
Preferably, when the performance number of low frequency signal corresponding to reference signal is current value, as shown in Figure 6, the device of embodiment of the present invention Modulating Power value also comprises multiple transducer 505, the corresponding antenna of one of them transducer 505;
Splitter 502, also for the reference signal determined is sent to the transducer 505 that this antenna is corresponding;
Transducer 505, for the reference signal that the splitter 502 corresponding according to the antenna received is determined, determines the switching signal that reference signal is corresponding; And the switching signal determined is sent to the wave detector 503 that this antenna is corresponding;
Wave detector 503, also for the performance number of low frequency signal corresponding to the switching signal that will receive as the performance number with reference to low frequency signal corresponding to signal.
In concrete enforcement, any can realization determine the switching signal that reference signal is corresponding, and the transducer 505 that the performance number of low frequency signal corresponding to switching signal is current value is all applicable to the present invention, such as, and resistor.
Preferably, wave detector 503 comprises high speed detection tube.
Preferably, processor 501, specifically for being defined as reference power value by the maximum in the performance number of multiple low frequency signal; Or the mean value of the maxima and minima in the performance number of multiple low frequency signal is defined as reference power value; Or the mean value of the performance number of multiple low frequency signal is defined as reference power value.
Preferably, controller 504, specifically for the performance number of N number of signal to be transmitted of an antenna according to the reference power value carrying out self processor 501 received and controller 504 correspondence, determines the power adjustment of N+i the signal to be transmitted that this antenna is corresponding.
Preferably, controller 504, specifically for the performance number of N number of signal to be transmitted of an antenna according to the reference power value received and controller 504 correspondence, determines the pre-power adjustment of N+i the signal to be transmitted that this antenna is corresponding; And according to the power adjustment of this pre-power adjustment and N-j signal to be transmitted corresponding to this antenna, determine the power adjustment of N+i the signal to be transmitted that this antenna is corresponding; Wherein, j is the natural number being less than N.
Preferably, according to the power adjustment of pre-power adjustment and N-j signal to be transmitted corresponding to this antenna, determine the execution mode of the power adjustment of N+i the signal to be transmitted that this antenna is corresponding and the embodiment of the present invention performance number according to multiple low frequency signals corresponding to many antennas, determine that the execution mode of reference power value is similar, do not repeat them here.
Preferably, i can get at least one value.For the numerous embodiments of i, will be introduced respectively below.
The value of mode one, i can be 1, namely according to reference power value, determines the power adjustment of N+1 signal to be transmitted that antenna is corresponding (after N number of signal to be transmitted that antenna is corresponding a signal to be transmitted);
The value of mode two, i can be 1 and 2, namely according to reference power value, determines the power adjustment of N+1, N+2 signal to be transmitted that antenna is corresponding (the rear section signal to be transmitted of N number of signal to be transmitted that antenna is corresponding);
The value of mode three, i can be 1,2,3 ... P(P be N number of signal to be transmitted after the number of signal to be transmitted corresponding to antenna), namely according to reference power value, the power adjustment of N+i signal to be transmitted that antenna is corresponding (after N number of signal to be transmitted that antenna is corresponding all signal to be transmitted) is determined.
In concrete enforcement, for multiple signals to be transmitted that an antenna is corresponding, the execution mode of the value of the i that the plurality of signal to be transmitted is corresponding can be identical, also can different (namely, can same way be adopted, also can adopt the random combine of mode one, mode two and mode three).
In concrete enforcement, in the execution mode of the value of j and the embodiment of the present invention, the execution mode of the value of i is similar, does not repeat them here.
Preferably, controller 504, specifically for using the power adjustment of default adjusted value as first signal to be transmitted of an antenna corresponding to controller.
In concrete enforcement, default adjusted value can as required or experience setting, such as, be set as 0.
Preferably, the device of embodiment of the present invention Modulating Power value can be placed in mimo system, such as, as shown in Figure 7, due to the existence of room subsystem or antenna-feedback system, in mimo system, the performance gap of the path that each antenna is corresponding can be very large, can there is relatively large deviation between the performance number transmitted that thus each antenna is corresponding, the device of Modulating Power value can realize reducing the deviation between the performance number transmitted corresponding to each antenna, improves transmission capacity and the receiving sensitivity of mimo system.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a method for Modulating Power value, is characterized in that, the method comprises:
For each the root antenna in many antennas, described in after adjusting according to performance number, N number of signal to be transmitted of each root antenna, determines the reference signal that described N number of signal to be transmitted is corresponding; And determine the performance number of the low frequency signal that described reference signal is corresponding;
According to the performance number of multiple low frequency signals corresponding to the many antennas determined, determine reference power value;
For each the root antenna in many antennas, according to described reference power value, determine the power adjustment of N+i the signal to be transmitted that each root antenna described is corresponding; And according to the power adjustment of N+i signal to be transmitted corresponding to each root antenna described in determining, the performance number of N+i signal to be transmitted corresponding to each root antenna described is adjusted;
Wherein, N and i is positive integer.
2. the method for claim 1, is characterized in that, determines the performance number of the low frequency signal that described reference signal is corresponding, comprising:
According to described reference signal, determine the switching signal that described reference signal is corresponding; And using the performance number of low frequency signal corresponding for described switching signal as the performance number with reference to low frequency signal corresponding to signal.
3. method as claimed in claim 1 or 2, is characterized in that, N=1, determines the power adjustment of N number of signal to be transmitted that described antenna is corresponding, comprising:
Using the power adjustment of default adjusted value as N number of signal to be transmitted corresponding to described antenna.
4. method as claimed in claim 1 or 2, is characterized in that, after adjusting, also comprises the performance number of N number of signal to be transmitted corresponding to described antenna:
According to the described N number of signal to be transmitted after performance number adjustment, determine corresponding the N number ofly the transmitting of described antenna.
5. method as claimed in claim 1 or 2, is characterized in that, according to the performance number of multiple low frequency signals corresponding to the many antennas determined, determines reference power value, comprising:
Maximum in the performance number of multiple low frequency signal is defined as reference power value; Or
The mean value of the maxima and minima in the performance number of multiple low frequency signal is defined as reference power value; Or
The mean value of the performance number of multiple low frequency signal is defined as reference power value.
6. the device of a Modulating Power value, it is characterized in that, comprise a processor, multiple splitter, multiple wave detector and multiple controller, the corresponding antenna of one of them splitter, the corresponding antenna of wave detector, the corresponding antenna of controller;
Splitter, for for corresponding with described splitter antenna, according to N number of signal to be transmitted of the described antenna after performance number adjustment, determines the reference signal that described N number of signal to be transmitted is corresponding; And the described reference signal determined is sent to the wave detector that described antenna is corresponding;
Wave detector, for according to the reference signal received, determines the performance number of the low frequency signal that described reference signal is corresponding; And the performance number of the described low frequency signal determined is sent to processor;
Processor, for the performance number according to the multiple low frequency signals from multiple wave detector received, determines reference power value; And the reference power value determined is sent to multiple controller;
Controller, for according to the reference power value carrying out self processor received, determines the power adjustment of N+i signal to be transmitted of the antenna that described controller is corresponding; And the power adjustment of N+i signal to be transmitted according to the described antenna determined, the performance number of N+i signal to be transmitted of described antenna is adjusted;
Wherein, N and i is positive integer.
7. device as claimed in claim 6, is characterized in that, also comprise multiple transducer, the corresponding antenna of one of them transducer;
Described splitter, also for the described reference signal determined is sent to the transducer that described antenna is corresponding;
Described transducer, for the reference signal that the splitter corresponding according to the antenna received is determined, determines the switching signal that described reference signal is corresponding; And the described switching signal determined is sent to the wave detector that described antenna is corresponding;
Described wave detector, also for the performance number of low frequency signal corresponding to the switching signal that will receive as the performance number with reference to low frequency signal corresponding to signal.
8. device as claimed in claims 6 or 7, is characterized in that, described controller, specifically for using the power adjustment of default adjusted value as first signal to be transmitted of an antenna corresponding to described controller.
9. device as claimed in claims 6 or 7, is characterized in that, described splitter, also for the N number of signal to be transmitted according to the described antenna after performance number adjustment, determines that the of described antenna N number ofly transmits.
10. device as claimed in claims 6 or 7, is characterized in that, described processor, specifically for the maximum in the performance number of multiple low frequency signal is defined as reference power value; Or the mean value of the maxima and minima in the performance number of multiple low frequency signal is defined as reference power value; Or the mean value of the performance number of multiple low frequency signal is defined as reference power value.
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| CN101174858A (en) * | 2006-11-02 | 2008-05-07 | 鼎桥通信技术有限公司 | Power control method and power controller |
| CN101341664A (en) * | 2004-09-24 | 2009-01-07 | 高通股份有限公司 | Method and system for power control in a communication system |
| CN101621316A (en) * | 2008-06-30 | 2010-01-06 | 大唐移动通信设备有限公司 | System and method for realizing transmission power control |
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| US7657277B2 (en) * | 2004-09-24 | 2010-02-02 | Qualcomm Incorporated | Method and system for power control in a communication system |
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| CN101341664A (en) * | 2004-09-24 | 2009-01-07 | 高通股份有限公司 | Method and system for power control in a communication system |
| CN101174858A (en) * | 2006-11-02 | 2008-05-07 | 鼎桥通信技术有限公司 | Power control method and power controller |
| CN101621316A (en) * | 2008-06-30 | 2010-01-06 | 大唐移动通信设备有限公司 | System and method for realizing transmission power control |
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