CN102655673A - Power regulation device and regulation method - Google Patents
Power regulation device and regulation method Download PDFInfo
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- CN102655673A CN102655673A CN2011100492021A CN201110049202A CN102655673A CN 102655673 A CN102655673 A CN 102655673A CN 2011100492021 A CN2011100492021 A CN 2011100492021A CN 201110049202 A CN201110049202 A CN 201110049202A CN 102655673 A CN102655673 A CN 102655673A
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Abstract
The invention relates to a power regulation device and regulation method. The power regulation device comprises a transceiving unit and a processing unit, wherein the transceiving unit sends a plurality of test packets by using a plurality of powers, and the processing unit is coupled with the transceiving unit and decides a transmission power according to the retransmission times of the test packets so as to be used for transmitting following packets.
Description
Technical field
The invention relates to the method for a kind of power adjustment apparatus and adjustment power method, the particularly power adjustment apparatus in wireless system thereof and adjustment power thereof.
Background technology
In wireless telecommunication system, conveyer arrives place farthest in order to want to transmit package as much as possible, and the delivering power of transmission end normally transmits with maximum power.Yet when the close together of receiving terminal and this transmission end; The waste that package can cause power is transmitted with this maximum power in the transmission end, simultaneously also might be because signal saturated (Saturation) that receiving terminal is received or the signal of being received are limited (Clipping) and can't correctly receive package.Therefore if can correctly calculate the distance between transmission end and the receiving terminal, then can suitably change the delivering power of transmission end, make the transmission end can reach the same or even better transmit usefulness with less power.
A kind of mode is to utilize the signal strength signal intensity of the received package in transmission end to judge the distance between transmission end and the receiving terminal; But judge that according to signal strength signal intensity its distance might cause erroneous judgement; Because the aerial refraction of signal, reflection or diffraction all can cause the decay (Fading) of signal, and cause the signal strength signal intensity of the received package in transmission end to descend or the rising of bit error rate (Bit Error Rate).For example when the received signal strength signal intensity in transmission end hour, the transmission end can judge that the distance between itself and the receiving terminal is far away, and causes the transmission end to transmit package with bigger delivering power, causes the waste of delivering power.Otherwise when the received signal strength signal intensity in transmission end was big, the close together between itself and the receiving terminal can be judged in the transmission end, and caused the transmission end to transmit package with less delivering power, caused receiving terminal can't receive package.Therefore passing through signal strength signal intensity as the distance of judging between transmission end and the receiving terminal, is comparatively unsuitable in some cases.
Summary of the invention
Because the defective of prior art; One of the object of the invention is to provide a kind of power adjustment apparatus and method of adjustment thereof; A kind ofly be suggested with the method that different power transmits package to remote-control device from transmitting and receiving device, this method in a training period via this delivering power of re-transmission situation adjustment of analyzing this package.Through this method, package transmits with optimal delivering power, not only can reduce the number of retransmissions of package, and can reduce delivering power, reaches the effect of power saving.
Description of drawings
Figure 1A: the sketch map of this case first preferred embodiment power adjustment apparatus;
Figure 1B: the sketch map of this case a plurality of test packets transmission status in a training period T;
Fig. 1 C: this case first preferred embodiment receives the sketch map of response;
Fig. 1 D: the sketch map of this case second preferred embodiment package transmission status in this training period T;
Fig. 2 A: the flow chart of this delivering power of this case the 3rd preferred embodiment decision;
Fig. 2 B: this case the 3rd preferred embodiment transmits the sketch map of successful package number;
Fig. 2 C: this case the 4th preferred embodiment transmits the normal distribution diagram of successful package number;
Fig. 2 D: the method for decision delivering power;
Fig. 3: the flow chart of this case the 6th preferred embodiment decision delivering power;
Fig. 4 A: this case the 7th preferred embodiment detection signal strength is to determine the flow chart of this delivering power;
Fig. 4 B: this case the 8th preferred embodiment detects transfer rate to determine the flow chart of this delivering power;
Fig. 5 A: this case the 9th preferred embodiment judges that signal intensity difference is to obtain the flow chart of this delivering power; And
Fig. 5 B: this case the tenth preferred embodiment judges that transfer rate difference is to obtain the flow chart of this delivering power.
The primary clustering symbol description
10: power adjustment apparatus 11: processing unit
12: Transmit-Receive Unit 13: antenna
14: memory cell 121: power adjustment unit
LV1, LV2, LV3: power t1, t2, t3: time point
T: training period P1: a plurality of power
P2: delivering power
Index1, index2, index3: index value
D1: the first package D2: second package
D3: the 3rd package ACK1, ACK2: response packets
ACK1 timeout, ACK2 timeout: response timeout
S1: control signal S2: information
Embodiment
Please refer to accompanying drawing of the present invention and read following detailed description, accompanying drawing wherein of the present invention is to introduce the various embodiment of the present invention with illustrational mode, and supplies to understand how to realize the present invention.The embodiment of the invention provides sufficient content, the embodiment that comes embodiment of the present invention to disclose for those skilled in the art, or implement the embodiment that derives according to disclosed content.It is noted that, those embodiment not mutual exclusions to each other, and part embodiment can do suitable the combination with other one or more embodiment, forming new embodiment, that is enforcement of the present invention is not limited to the following embodiment that discloses.
First embodiment of this case is about a kind of power adjustment apparatus, and it comprises a Transmit-Receive Unit and a processing unit, and is used for and long-range a communication.This Transmit-Receive Unit uses a plurality of power to transmit a plurality of test packets, and this processing unit couples this Transmit-Receive Unit, and this processing unit is according to the number of retransmissions of these test packets, to determine a delivering power to be used for the transmission of follow-up package.
See also Figure 1A, it is for the sketch map of this case first preferred embodiment power adjustment apparatus.This power adjustment apparatus 10 comprises a processing unit 11, a Transmit-Receive Unit 12, an antenna 13, an and memory cell 14.This Transmit-Receive Unit 12 comprises a power adjustment unit 121, and this power adjustment unit 121 is in order to adjustment power.This Transmit-Receive Unit 12 also disposes a receiving element (not shown) to receive response (ACK) information.
See also Figure 1B, it is the sketch map of this case a plurality of test packets transmission status in a training period T.In Figure 1B, T represents a training period, and D1 represents one first package,
Please be simultaneously with reference to Figure 1A and Figure 1B; In this training period T; This processing unit 11 sends a control signal S1 to this Transmit-Receive Unit 12, transmits one first package D1 in order to control this power adjustment unit 121 with a power LV1, simultaneously; This processing unit 11 is stored to this memory cell 14 with an index value index1, and this index value index1 is the dB value that is relevant to this power LV1.If this power adjustment apparatus 10 is not received the information of response ACK1 in the period of a response timeout ACK1 timeout; Then this Transmit-Receive Unit 12 is replied an information S2 to this processing unit 11, and wherein this information S2 comprises the information of a response timeout ACK1 timeout.After this processing unit 11 receives the information of this response timeout ACK1 timeout; This processing unit 11 can be controlled this power adjustment unit 121 with another power LV2 greater than power LV1; Make this Transmit-Receive Unit 12 transmit this one second package D2 at time point t2 with this power LV2; Simultaneously, this processing unit 11 is stored to this memory cell 14 with an index value index2 (not shown), and this index value index2 is the dB value that is relevant to this power LV2.
Likewise; If this power adjustment apparatus 10 is not received the information of response ACK2 in the period of a response timeout ACK2 time out; Then this Transmit-Receive Unit 12 is replied an information S3 (not shown) to this processing unit 11; Wherein this information S3 comprises the information of a response timeout ACK2 timeout, and after this processing unit 11 received the information of this response timeout ACK2 timeout, this processing unit can be controlled this power adjustment unit 121 with another power LV3 greater than power LV2; Make this Transmit-Receive Unit 12 transmit one the 3rd package D3 at time point t3 with this power LV3; Simultaneously, this processing unit 11 is stored to this memory cell 14 with an index value index3 (not shown), and this index value index3 is the dB value that is relevant to this power LV3.
See also Fig. 1 C, it receives the sketch map of response for this case first preferred embodiment.If this power adjustment apparatus 10 is received the information of response ACK2 in the period of this response timeout ACK2 timeout, then this processing unit 11 transmits follow-up package D_other according to response ACK2 information Control power adjustment unit 121 with power LV2.。
See also Fig. 1 D, it is the sketch map of this case second preferred embodiment package transmission status in this training period T.In Fig. 1 D, in this training period T, this first package D1 is transmitted at the t1 time point with this power LV3; This adjustment power device 10 receives response ACK1; These processing unit 11 power controlling adjustment units 121 transmit package with another power LV2 less than power LV3, and promptly one second package D2 is transmitted at the t2 time point with this power LV2, and this adjustment power device 10 receives response ACK2; These processing unit 11 power controlling adjustment units 121 transmit package with another power LV1 less than power LV2; Promptly one the 3rd package D3 is transmitted at the t3 time point with this power LV1, by that analogy, and until receiving response ACK information.
In second preferred embodiment, processing unit 11 is according to successfully receive the employed power of response ACK information for the last time, and power controlling adjustment unit 121 transmits follow-up package D_other; In different application, (D1～D3) also can be a same packet to a plurality of test packets.
See also Fig. 2 A, it is the flow chart of this delivering power of this case the 3rd preferred embodiment decision P2.For example; This power adjustment apparatus 10 transmits 10 test packets in this training period T; And the power that the power that set to retransmit zero degree is small-power, retransmit once power is middle power, retransmit twice is high-power, and the power that retransmits more than twice is maximum power.
See also Fig. 2 B, it transmits the sketch map of successful package number for this case the 3rd preferred embodiment.In Fig. 2 B; 10 test packets are following at the transmission status of this training period T: retransmitting 0 time is to transmit the successful package of retry0 for the first time to count N_retry0=4; Retransmit the just successful package of retry1 and count N_retry1=4; Retransmit twice just successful package of retry2 and count N_retry2=2, the package that surpasses twice re-transmission is counted N_other=0.Above-mentioned statistical value multiply by weighted value W0, W1, W2, W_other respectively and can obtain corresponding weighted results R_retry0, R_retry1, R_retry2, and R_other respectively; This earlier hypothesis weighted value W0, W1, W2, W_other be all 1, so its weighted results is respectively: R_retry0=N_retry0 * W0=4, R_retry1=N_retry1 * W1=4, R_retry2=N_retry2 * W2=2, and R_other=N_other * W_other=0.Represent that with the mode of ordered series of numbers above-mentioned weighted results can be write as R_retry []=[4,4,2,0].At this, know that all transmit successful package and count N_total=10, it multiply by an aggregative weighted value W_total=1 can obtain aggregative weighted R_total=10 as a result, with as one first threshold value.The package that the package that processing unit 11 will retransmit that 0 time package is counted N_retry0=4, the package that retransmits 1 time is counted N_retry1=4, retransmit 2 times counts N_retry2=2, surpass twice re-transmission is counted N_other=0, all transmit successful package and count N_total=10, weighted results R_retry []=[4; 4; 2; 0] and aggregative weighted as a result R_total=10 be stored in 14 (for example buffers) in the memory cell, to do computing and judgement.
It should be noted that a plurality of test packets can be identical package or different packages.It can be known parameter before transmitting that the successful package of all transmission is counted N_total, also can be to do to add up according to the package number that success each time transmits to get.For example: if originally estimate to transmit 10 test packets at this training period T, but when this training period T finishes, only successfully transmitted 9 test packets, then the successful package of all transmission is counted N_total and is calculated with 9 at this moment.
Please get back to Fig. 2 A, begin the explanation of step 20 now, in step 201, i=0 representative at the beginning retransmits 0 time, promptly transmits for the first time, and Sum_Result represents accumulation result one by one, in step 201, sets its initial value Sum_Result=0.Then get into step 202, with the i time accumulation result Sum_Result and an i weighted results R_retry [i] addition and obtain the i time accumulation result.Sum_Result。Judge that accumulation result Sum_Result is whether more than or equal to aggregative weighted (step 203) during R_total as a result; If; Then setting the power that retransmits i time is this delivering power P2; Just from these a plurality of power P 1, select this power LV1, this power LV2, and one of them of this power LV3 as this delivering power P2 (step 204), to be used for the transmission of follow-up package, finish then to judge (step 205).If not, the i time accumulation result Sum_Result as a result the time, then adds 1 (step 206) with i less than aggregative weighted, up to accumulation result Sum_Result more than or equal to aggregative weighted as a result till the R_total.
For example, when transmitting (i=0) for the first time, Sum_Result (initial value)+R_retry [0]=Sum_Result, i.e. 0+4=4＜R_total=10; Therefore get into step 206, i+1=1 gets into step 202 then; Sum_Result+R_retry [1]=Sum_Result, promptly therefore 4+4=8＜R_total=10 gets into step 206; I+1=2 gets into step 202 then, Sum_Result [2]+R_retry [2]=Sum_Result [3]; Be 8+2=R_total1=10, therefore get into step 206, setting the power that retransmits twice is this delivering power P2.
See also Fig. 2 C, it transmits the normal distribution diagram of successful package number for this case the 4th preferred embodiment.In Fig. 2 C; All transmit successful package number in this training period T in the area under a curve representative; It comprises 0 just successful package number of re-transmission, retransmits once successful package number, retransmits twice successful package number and retransmits above successful package number twice; In normal distribution diagram; In this training period T, if when transmitting for the first time, can select suitable delivering power to make 80% of all test packets can transmit successfully, such method can select the lower mode of power to transmit follow-up package adaptively.According to above-mentioned notion; This aggregative weighted value W_total in this this case the 3rd preferred embodiment can be adjusted to 0.8; And all transmit successful package and count N_total=10 and multiply by aggregative weighted value W_total=0.8 and can obtain aggregative weighted R_total=8 as a result, with it as this first threshold value.
Because this first threshold value has reduced, so in this case the 3rd preferred embodiment, when retransmitting 1 time; Sum_Result+R_retry [1]=Sum_Result; Be 4+4=8=R_total, then get into step 206, setting the power that retransmits once is this delivering power P2.
Below be this case the 5th preferred embodiment.In this case the 5th preferred embodiment; Weighted value W0, W1, W2, and W_other dispose with the mode of successively decreasing; For example W0=10, W1=7, W2=2, and W_other=0, so its weighted results is respectively: R_retry0=N_retry0 * W0=40, R_retry1=N_retry1 * W1=28, R_retry2=N_retry2 * W2=4, and R_other=N_other * W_other=0.Represent that with the mode of ordered series of numbers above-mentioned weighted results can be write as R_retry []=[40,28,4,0].All transmit successful package and count N_total=10 and multiply by aggregative weighted value W_total=6 and can obtain aggregative weighted R_total=60 as a result, with it as this first threshold value.Therefore when i=0; Sum_Result+R_retry [0]=Sum_Result; Be 0+40=40＜60=R_total, when i=1, Sum_Result+R_retry [1]=Sum_Result; Be 40+28=68＞60=R_total; Promptly satisfy the condition (step 203) of accumulation result Sum_Result more than or equal to the aggregative weighted result this moment, therefore setting the power that retransmits once is this delivering power P2, and the benefit of this practice is to hope to transmit follow-up package with lower this delivering power P2 as far as possible.
See also Fig. 2 D, it is the method for decision delivering power P2.In step 211, this power adjustment apparatus 10 uses a plurality of power P 1 to transmit a plurality of test packets.In step 212, in a period, transmit successful package number in these processing unit 11 these a plurality of test packets of statistics.In step 213, according to the number of retransmissions of these test packets, to determine a delivering power to be used for the transmission of follow-up package.
See also Fig. 3, it is the flow chart of this delivering power of this case the 6th preferred embodiment decision P2.In this embodiment, delivering power from big to small, so Rule of judgment is slightly different.10 test packets are following at the transmission status of this training period T: retransmit the package that promptly transmits for the first time successful retry0 for 0 time and count N_retry0=8; Retransmit the successful package of retry1 and count N_retry1=2, surpass the package that once retransmits and count N_other=0.The package number of each re-transmission multiply by weighted value W0=1, W1=1, W_other=1 respectively and can obtain corresponding weighted results R_retry0=8, R_retry1=2, and R_other=0 respectively; All transmit successful package and count N_total=10; It multiply by aggregative weighted value W_total=1 can obtain aggregative weighted R_total=10 as a result, with as this first threshold value.
In the 6th preferred embodiment, Sum_result represents accumulation result one by one, step 301, hypothesis i=N=1 during beginning, Sum_result (initial value)=0.Step 302, Sum_result (initial value)+R_retry [1]=Sum_result, i.e. 0+2=2＜10=R_total; Therefore through getting into step 306 after the judgement of step 303; I-1=0 gets into step 302 then, Sum_result+R_retry [0]=2+8=10=R_total; Through getting into step 304 after the judgement of step 303; The power that the selection re-transmission is 0 time is this delivering power P2, and the power that promptly transmits for the first time is this delivering power P2, transmits follow-up package D_other with this delivering power P2.After retransmitting 1 time; The package of remaining sum 20% transmits successfully; Reason possibly be that the signal saturated (Saturation) received of receiving terminal or the signal of being received are limited (Clipping) and can't correctly receive package, so delivering power can correctly receive after reducing on the contrary.
See also Fig. 4 A, it is that this case the 7th preferred embodiment detection signal strength is to determine the flow chart of this delivering power P2.A plurality of power P 1 comprise one first power and one second power; Wherein this second power is greater than this first power; This embodiment mainly is a signal strength signal intensity of judging these power adjustment apparatus 10 received receiving terminals earlier; If signal strength signal intensity is less than one second threshold value, for example 45% of a standard signal intensity, then transmit follow-up package D_other with this second power.Step 400 flow process begins.In step 401, this power adjustment apparatus 10 is collected at least one information, this at least one information comprise a signal strength signal intensity (Signal Strength, SS).In step 402; This processing unit 11 is judged when this signal strength signal intensity during more than or equal to this second threshold value; Then get into step 403, the step in the step 403 gets into step 404 then and finishes as the step 20 of Fig. 2 A; This second threshold value can be one first reference signal strength, and for example it is 45% of this standard signal intensity.In step 402; This processing unit 11 is judged when this signal strength signal intensity during less than this second threshold value; Then get into step 405, these processing unit 11 these power adjustment units 121 of control transmit follow-up package D_other with this second power, get into step 404 then and finish.Except judging with signal strength signal intensity, transfer rate that can also package as Rule of judgment to determine this delivering power P2.
See also Fig. 4 B, it detects transfer rate to determine the flow chart of this delivering power P2 for this case the 8th preferred embodiment.A plurality of power P 1 comprise this first power and this second power, and wherein this second power is greater than this first power.The 8th preferred embodiment mainly is a transfer rate of judging the transmission package of this power adjustment apparatus 10 earlier; If transfer rate is less than one the 3rd threshold value; The 3rd threshold value is one first with reference to transfer rate, and then these processing unit 11 these power adjustment units 121 of control transmit follow-up package D_other with this second power.In Fig. 4 B, step 411 flow process begins.In step 412, this power adjustment apparatus 10 transmits at least one package.Step 20 among the also available Fig. 2 A of step 412 replaces.In step 413, this power adjustment apparatus 10 is collected at least one information, and this at least one information comprises the information of a transfer rate.In step 414, this processing unit 11 judges that when this transfer rate during more than or equal to the 3rd threshold value then get into step 415, the step in the step 415 gets into step 416 end then as the step 20 of Fig. 2 A.In step 414; This processing unit 11 is judged when this transfer rate during less than the 3rd threshold value; Then get into step 417, these processing unit 11 these power adjustment units 121 of control transmit follow-up package D_other with this second power, get into step 416 then and finish.Except above-mentioned method; Can also reception signal strength signal intensity more instantly carry out the signal strength signal intensity that is obtained when power is adjusted mechanism with the last time; Or package transfer rate more instantly and the last package transfer rate that is obtained when power is adjusted mechanism of carrying out; Through above-mentioned Rule of judgment, signal strength signal intensity instantly or transfer rate change when little, then continue to continue to use previous delivering power.
See also Fig. 5 A, it judges that for this case the 9th preferred embodiment signal intensity difference is to obtain the flow chart of this delivering power P2.A plurality of power P 1 comprise this first power and this second power, and wherein this second power is greater than this first power.Flow process begins in step 501.Then in step 502, this processing unit 11 is collected at least one first information, and this at least one first information comprises one first signal strength signal intensity.Next in step 503; This processing unit 11 is judged when this first signal strength signal intensity during less than this second threshold value; Then get into step 508, these processing unit 11 these power adjustment units 121 of control transmit follow-up package D_other with this second power, get into step 507 then and finish.This processing unit 11 is judged when this first signal strength signal intensity during more than or equal to one second threshold value, then gets into step 504, at least one second information of these processing unit 11 collections, and this at least one second information comprises a secondary signal intensity.Next get into step 505, this processing unit 11 judges that when the absolute value of the difference of this first signal strength signal intensity and this secondary signal intensity was less than or equal to one the 4th threshold value, then this power adjustment apparatus 10 continued to use this first power.When this processing unit 11 judges that absolute value when the difference of this first signal strength signal intensity and this secondary signal intensity is greater than the 4th threshold value; Then get into step 506; Step in the step 506 is as the step 20 of Fig. 2 A; Get into step 507 then and finish, wherein the 4th threshold value can be one second reference signal strength, and for example it is 45% of this standard signal intensity.Likewise, the condition that also can be used as judgement with transfer rate.
See also Fig. 5 B, it judges that for this case the tenth preferred embodiment transfer rate difference is to obtain the flow chart of this delivering power P2.A plurality of power P 1 comprise this first power and this second power, and wherein this second power is greater than this first power.In Fig. 5 B, step 510 flow process begins.In step 511, this power adjustment apparatus 10 transmits at least one package.Step 20 among the also available Fig. 2 A of step 511 replaces.Then in step 512, this processing unit 11 is collected at least one first information, and this at least one first information comprises one first transfer rate.Next in step 513; This processing unit 11 is judged when this first transfer rate during less than the 3rd threshold value; Then get into step 518, these processing unit 11 these power adjustment units 121 of control transmit follow-up package D_other with this second power, get into step 517 then and finish.This processing unit 11 is judged when this first transfer rate during more than or equal to the 3rd threshold value, then gets into step 514, at least one second information of these processing unit 11 collections, and this at least one second information comprises one second transfer rate.Next get into step 515; This processing unit 11 is judged when the absolute value of the difference of this first transfer rate and this second transfer rate is less than or equal to one the 5th threshold value; Then this power adjustment apparatus 10 continues to use these first power P 1, and wherein the 5th threshold value is one second with reference to transfer rate.When this processing unit 11 judges that absolute value when the difference of this first transfer rate and this second transfer rate is greater than the 5th threshold value, then get into step 516, the step in the step 516 gets into step 517 end then as the step 20 of Fig. 2 A.
In sum, explanation of the present invention and embodiment are exposed in, and so it non-ly is used for limiting the present invention; All those skilled in the art; Do not breaking away under spirit of the present invention and the scope, when doing various changes and modification, it must belong within the covering scope of patent of the present invention.
Claims (20)
1. a power adjustment apparatus is used for linking up with a remote-control device, and said power adjustment apparatus comprises:
One Transmit-Receive Unit uses a plurality of power to transmit a plurality of test packets; And
One processing unit couples said Transmit-Receive Unit, and said processing unit is according to the number of retransmissions of said a plurality of test packets, to determine a delivering power to be used for the transmission of follow-up package.
2. device according to claim 1; Wherein, said Transmit-Receive Unit receives an information, and said processing unit determines said delivering power according to said information; Wherein, Said information comprises a response timeout (ACK timeout) information, response (ACK) information, and wherein, said response timeout information and said response message are relevant with the number of retransmissions of said a plurality of test packets.
3. device according to claim 1, wherein,
Said Transmit-Receive Unit comprises a power adjustment unit; Said power adjustment unit uses said a plurality of power to transmit said a plurality of test packets; Wherein, said a plurality of power comprise one first delivering power and one second delivering power, and said first delivering power is less than said second delivering power;
Said Transmit-Receive Unit receives an information;
Said processing unit also comprises a memory cell; Said processing unit with the number of said a plurality of test packets, retransmit zero degree the package number, and the package number that retransmits once be stored in said memory cell; Wherein, The package number of said re-transmission zero degree and said re-transmission package number once is relevant with said information, corresponding said first delivering power of the package number of said re-transmission zero degree, corresponding said second delivering power of said re-transmission package number once;
When the package number of said re-transmission zero degree equaled the number of said a plurality of test packets, said Transmit-Receive Unit used said first delivering power to transmit follow-up package; And
When the summation of the package number of said re-transmission zero degree and said re-transmission package number once equaled the number of said a plurality of test packets, said Transmit-Receive Unit used said second delivering power to transmit follow-up package.
4. device according to claim 3, wherein,
Said memory cell also stores an aggregative weighted value, and when the package number of said re-transmission zero degree during more than or equal to a product of the number of said a plurality of test packets and said aggregative weighted value, said Transmit-Receive Unit uses said first delivering power to transmit follow-up package; And
When the package of said re-transmission zero degree was counted the said re-transmission of addition package number once more than or equal to said product, said Transmit-Receive Unit used said second delivering power to transmit follow-up package, and wherein, said aggregative weighted value is between 0～1.
5. device according to claim 3, wherein,
Said memory cell also stores an aggregative weighted value, one first weighted value, one second weighted value, an aggregative weighted result, one first weighted results, reaches one second weighted results;
When said first weighted results more than or equal to said aggregative weighted as a result the time, said Transmit-Receive Unit uses said first delivering power to transmit follow-up package; And
When the summation of said first weighted results and said second weighted results more than or equal to said aggregative weighted as a result the time, said Transmit-Receive Unit uses said second delivering power to transmit follow-up package,
Wherein, Said aggregative weighted result equals the product of the number of said aggregative weighted value and said a plurality of test packets; Said first weighted results equals the package number of said re-transmission zero degree and the product of said first weighted value, and said second weighted results equals the said re-transmission package number once and the product of said second weighted value.
6. device according to claim 1, wherein, said a plurality of power comprise one first power and one second power; Said processing unit is collected at least one first information; Said at least one first information comprises one first signal strength signal intensity, and when said first signal strength signal intensity was less than or equal to one first reference signal strength, then said processing unit was controlled said power adjustment unit and transmitted follow-up package with said second power; Wherein, said second power is greater than said first power.
7. device according to claim 6; Wherein, Said processing unit is collected at least one second information; Said at least one second information comprises a secondary signal intensity, and when the absolute value of the difference of said first signal strength signal intensity and said secondary signal intensity was less than or equal to one second reference signal strength, then said Transmit-Receive Unit continued to use said first power to transmit follow-up package.
8. device according to claim 1, wherein, said a plurality of power comprise one first power and one second power; Said processing unit is collected at least one first information; Said at least one first information comprises one first transfer rate, and when said first transfer rate is less than or equal to one first during with reference to transfer rate, then said processing unit is controlled said power adjustment unit and transmitted follow-up package with said second power; Wherein, said second power is greater than said first power.
9. device according to claim 8; Wherein, Said processing unit is collected at least one second information; Said at least one second information comprises one second transfer rate, and when the absolute value of the difference of said first transfer rate and said second transfer rate is less than or equal to one second during with reference to transfer rate, then said Transmit-Receive Unit continues to use said first power to transmit follow-up package.
10. method of adjusting power, said method comprises the following steps:
Use a plurality of power to transmit a plurality of test packets; And
According to the number of retransmissions of said a plurality of test packets to determine a delivering power, to be used for the transmission of follow-up package.
11. method according to claim 10 also comprises the following steps:
Receive an information; Wherein, The number of said information and said a plurality of test packets, one retransmit zero degree the package number, and the package number that retransmits once relevant, said a plurality of power comprise one first delivering power and one second delivering power, package number correspondence one first delivering power of said re-transmission zero degree; Corresponding one second delivering power of said re-transmission package number once, said first delivering power is less than said second delivering power;
When the package number of said re-transmission zero degree equals said a plurality of test packets number, use said first delivering power to transmit follow-up package; And
When the summation of the package number of said re-transmission zero degree and said re-transmission package number once equals said a plurality of test packets number, use said second delivering power to transmit follow-up package.
12. method according to claim 11 also comprises the following steps:
One aggregative weighted value is provided;
When the package number of said re-transmission zero degree during more than or equal to a product of the number of said a plurality of test packets and said aggregative weighted value, said Transmit-Receive Unit uses said first delivering power to transmit follow-up package; And
When the summation of the package number of said re-transmission zero degree and said re-transmission package number once during more than or equal to said product, said Transmit-Receive Unit uses said second delivering power to transmit follow-up package, and wherein, said aggregative weighted value is between 0～1.
13. method according to claim 11 also comprises the following steps:
One aggregative weighted value, one first weighted value, one second weighted value, an aggregative weighted result, one first weighted results and one second weighted results are provided;
When said first weighted results more than or equal to said aggregative weighted as a result the time, said Transmit-Receive Unit uses said first delivering power to transmit follow-up package; And
When the summation of said first weighted results and said second weighted results more than or equal to said aggregative weighted as a result the time; Said Transmit-Receive Unit uses said second delivering power to transmit follow-up package; Wherein, Said aggregative weighted result equals the product of the number of said aggregative weighted value and said a plurality of test packets; Said first weighted results equals the product of the package number of said first weighted value and said re-transmission zero degree, and said second weighted results equals the product of said second weighted value and said re-transmission package number once.
14. method according to claim 11 also comprises the following step:
Collect at least one first information, said at least one first information comprises a signal strength signal intensity; And
When said signal strength signal intensity during, then transmit follow-up package with said second delivering power less than one first reference signal strength.
15. method according to claim 11 also comprises the following step:
Collect at least one first information, said at least one first information comprises a transfer rate; And
When said transfer rate less than one first during with reference to transfer rate, then transmit follow-up package with said second delivering power.
16. method according to claim 11 also comprises the following step:
Collect at least one first information, said at least one first information comprises one first signal strength signal intensity;
When said first signal strength signal intensity is less than or equal to one first reference signal strength, then transmit follow-up package with said second delivering power;
Collect at least one second information, said at least one second information comprises a secondary signal intensity; And
When the absolute value of the difference of said first signal strength signal intensity and said secondary signal intensity is less than or equal to one second reference signal strength, then continue to use said first delivering power to transmit follow-up package.
17. method according to claim 11 also comprises the following step:
Collect at least one first information, said at least one first information comprises one first transfer rate;
When said first transfer rate is less than or equal to one first during with reference to transfer rate, then transmit follow-up package with said second delivering power;
Collect at least one second information, said at least one second information comprises one second transfer rate; And
When the absolute value of the difference of said first transfer rate and said second transfer rate is less than or equal to one second during with reference to transfer rate, then continue to use said first delivering power to transmit follow-up package.
18. a power adjustment apparatus is used for linking up with a remote-control device, said power adjustment apparatus comprises:
One Transmit-Receive Unit uses a plurality of power to transmit a test packets; And
One processing unit couples said Transmit-Receive Unit, and said processing unit is according to a response or a response timeout information of said test packets, to determine a delivering power to be used for the transmission of follow-up package.
19. device according to claim 18; Wherein, Said a plurality of power comprises one first delivering power and one second delivering power; And said second delivering power is greater than said first delivering power, and when said Transmit-Receive Unit transmitted said test packets and said Transmit-Receive Unit and receives the information of said response timeout with said first delivering power, said Transmit-Receive Unit transmitted said test packets with said second delivering power.
20. device according to claim 19, wherein,
Said a plurality of power comprises one first delivering power and one second delivering power; Wherein, Said second delivering power is less than said first delivering power; When said Transmit-Receive Unit transmitted said test packets and said Transmit-Receive Unit and receives the information of said response with said first delivering power, then said Transmit-Receive Unit transmitted said test packets with said second delivering power, and
When said Transmit-Receive Unit transmitted said test packets and said Transmit-Receive Unit and receives the information of said response timeout with said second delivering power, said Transmit-Receive Unit transmitted follow-up package with said first delivering power.
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| CN102655673B (en) | 2014-11-26 |
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