CN102695247B - Power control method and power control device - Google Patents
Power control method and power control device Download PDFInfo
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- CN102695247B CN102695247B CN201210181057.7A CN201210181057A CN102695247B CN 102695247 B CN102695247 B CN 102695247B CN 201210181057 A CN201210181057 A CN 201210181057A CN 102695247 B CN102695247 B CN 102695247B
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Abstract
The invention discloses a power control method and a power control device, which are used for realizing the control for the transmission power of UE (User Equipment) under a multi-carrier mode. The power control method comprises the following steps of: calculating the transmission power of the UE when data are sent by the UE through multiple carriers; carrying out substep power compression on each carrier according to attribute parameters of each carrier or carrying out synchronous power compression on each carrier according to a compression ratio when the transmission power of the UE is larger than the preset maximum transmission power. The invention also provides the power control device.
Description
Technical field
The embodiment of the present invention relates to the communications field, particularly relates to a kind of Poewr control method and device.
Background technology
Along with the develop rapidly of the communication technology, Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code Division MultipleAccess) as one of the mainstream technology of 3-G (Generation Three mobile communication system), obtain investigation and application widely in the world, current WCDMA has had the 99th version (R99, Release99), the 4th version (R4, Release4), the 5th version (R5, Release5), the 6th version (R6, Release6), the version such as the 7th version (R7, Release7).
In order to improve message transmission rate, meet the different needs, WCDMA introduces high speed uplink packet access (HSUPA in R6 version, High Speed Uplink PacketAccess) technology, thus improve the transmission speed of up link, current HSUPA technology is all carried on single frequency point, and namely single carrier data sends.
In the related protocol of WCDMA, define the maximum transmission power of subscriber equipment (UE, User Equipment), UE needs to keep actual uplink transmission power to be equal to or less than indicated maximum transmission power.
For the uplink transmission power of control UE reality, in prior art a kind of Poewr control method for: calculate the transmitting power needed for data to be sent that UE sends on single carrier, if when the power sum of the transmitting power calculated and other up channel (i.e. the transmitting power of UE) has exceeded maximum transmission power, then power compression is carried out to this carrier wave, make the transmitting power of UE be less than or equal to maximum transmission power.
For improving the message transmission rate of HSUPA system further, up couple of carrier wave (DC-HSUPA is introduced in the R9 version of WCDMA, Dual Cell HSUPA) technology, this technical scheme can utilize two up-link carriers to send data simultaneously, thus improves the transmission rate of upstream data.Certainly, along with the development of technology, future also may at up introducing more multicarrier.
Therefore, need to control to be configured to the power of the up multiple carrier waves of UE.
Summary of the invention
Embodiments provide a kind of Poewr control method and device, the UE transmitting power that can realize under multi-carrier mode controls.
The Poewr control method that the embodiment of the present invention provides, comprising: when subscriber equipment sends data by multiple carrier wave, calculate the transmitting power of described subscriber equipment; When the transmitting power of described subscriber equipment exceedes preset maximum transmission power; According to the property parameters of each carrier wave substep power compression carried out to each carrier wave described or according to compression factor, synchronizing power compression carried out to each carrier wave described.
The output control device that the embodiment of the present invention provides, comprising: the first computing unit, for calculating the transmitting power of subscriber equipment; First verification unit, for judging whether the transmitting power of the subscriber equipment that described first computing unit calculates exceedes preset maximum transmission power; Described output control device also comprises: substep compression unit, for when the transmitting power of described subscriber equipment exceedes preset maximum transmission power, carries out substep power compression according to the property parameters of described each carrier wave to described each carrier wave; Or synchronous compression unit, for when the transmitting power of described subscriber equipment exceedes preset maximum transmission power, carries out synchronizing power compression according to compression factor to described each carrier wave.
As can be seen from technique scheme, embodiment of the present invention tool has the following advantages:
In a scheme of the embodiment of the present invention, when UE uses multicarrier to send data, when the transmitting power of UE is greater than preset maximum transmission power, can substep power compression be carried out according to the property parameters of each carrier wave to each carrier wave or according to compression factor, power compression be carried out to each carrier wave simultaneously, therefore achieve the power compression under multi-carrier case.
Accompanying drawing explanation
Fig. 1 is Poewr control method embodiment schematic diagram in the embodiment of the present invention;
Fig. 2 is another embodiment schematic diagram of Poewr control method in the embodiment of the present invention;
Fig. 3 is a Poewr control method embodiment schematic diagram again in the embodiment of the present invention;
Fig. 4 is the another embodiment schematic diagram of Poewr control method in the embodiment of the present invention;
Fig. 5 is output control device embodiment schematic diagram in the embodiment of the present invention;
Fig. 6 is another embodiment schematic diagram of output control device in the embodiment of the present invention;
Fig. 7 is an output control device embodiment schematic diagram again in the embodiment of the present invention.
Embodiment
Embodiments provide a kind of Poewr control method and device, control for the UE transmitting power realized under multi-carrier mode.
Refer to Fig. 1, in the embodiment of the present invention, Poewr control method embodiment comprises:
101, the transmitting power of UE is calculated.
In the present embodiment, when UE uses the HSUPA scheme of multicarrier, then UE can send data over a number of carriers simultaneously, and output control device can obtain the to be sent data of UE on each carrier wave, and the output control device in the present embodiment can be integrated in UE and realize.
The transmitting power of concrete UE comprises UE and sends the altogether required power estimating other up channels of transmitting power and this UE of data to be sent on each carrier wave.
In the present embodiment, output control device can obtain the data to be sent on each carrier wave, and calculates and send that these data to be sent are altogether required estimates transmitting power, and concrete computational process is the common practise of those skilled in the art, is not construed as limiting herein.
UE can send the data to be sent on each carrier wave by data channel, in the present embodiment, this data channel can for strengthening Dedicated Physical Data Channel (E-DPDCH, E-DCH Dedicated Physical Data Channel).It should be noted that, other up channels in UE except this data channel can comprise: Dedicated Physical Control Channel (DPCCH, DedicatedPhysical Control Channel), Dedicated Physical Data Channel (DPDCH, Dedicated Physical Data Channel), strengthen Dedicated Physical Control Channel (E-DPCCH, E-DCH Dedicated Physical Control Channel), High-Speed Dedicated Physical Control Channel (HS-DPCCH, Dedicated Physical Control Channel uplink for HS-DSCH) etc. channel, the acquisition process of the power of these channels concrete is general knowledge known in those skilled in the art, be not construed as limiting herein.
102, judge whether the transmitting power of UE exceedes preset maximum transmission power, if so, then perform step 104, if not, then perform step 103.
The maximum transmission power of UE is defined in the related protocol of WCDMA, this maximum transmission power can be determined by two parameters: the maximum permission ascending power configured in the peak power output that the power grade of UE is corresponding and the current residing network of UE, this maximum transmission power gets numerical value less in peak power output and maximum permission ascending power.
103, data to be sent are sent and process ends.
If the transmitting power of UE is less than or equal to maximum transmission power, then UE can directly send the data to be sent of each carrier wave, and the process of transmission is the common practise of those skilled in the art, is not construed as limiting herein.
104, according to the property parameters of each carrier wave, substep power compression is carried out to each carrier wave.
If the transmitting power of UE is greater than maximum transmission power, then UE just can carry out data transmission after needing first to carry out power compression.
Power compression mode concrete in the present embodiment is: carry out substep power compression according to the property parameters of each carrier wave to each carrier wave, namely according to the order of property parameters, one by one power compression is carried out to each carrier wave, and after power compression is carried out to each carrier wave, judge whether transmitting power meets maximum transmission power restriction (whether the transmitting power namely after compression is less than or equal to maximum transmission power), if meet, then stop compressing and sending the data to be sent on each carrier wave.
Concrete property parameters can comprise: strengthen dedicated channel transport format combination instruction (E-TFCI, E-DCH TransportFormat Combination Indicator), authorization of service (SG, Serving Grant) parameter or DPCCH power, or can also be the property parameters of other types, be not construed as limiting herein.
In the present embodiment, when UE uses multicarrier to send data, if the transmitting power of UE is greater than preset maximum transmission power, then can carry out substep power compression according to the property parameters of each carrier wave to each carrier wave, namely according to the difference of the property parameters of each carrier wave, one by one power compression is carried out to each carrier wave, therefore, it is possible to carry out power compression according to the order of property parameters one by one to each carrier wave, so achieve the power compression under multi-carrier case.
For ease of understanding, be described in detail above-mentioned Poewr control method with an instantiation below, refer to Fig. 2, in the embodiment of the present invention, another embodiment of Poewr control method comprises:
201, the transmitting power of UE is calculated.
The process calculating the transmitting power of UE in the present embodiment is consistent with the process calculating the transmitting power of UE in abovementioned steps 101, repeats no more herein.
202, judge whether the transmitting power of UE exceedes preset maximum transmission power, if so, then perform step 204, if not, then perform step 203.
203, data to be sent are sent and process ends.
If the transmitting power of UE is less than or equal to maximum transmission power, then UE can send the data to be sent of each carrier wave.The process sent is the common practise of those skilled in the art, is not construed as limiting herein.
204, power compression is carried out to first carrier.
If the transmitting power of UE is greater than maximum transmission power, then UE just can carry out data transmission after needing first to carry out power compression.
Power compression mode concrete in the present embodiment is: carry out substep power compression according to the property parameters of each carrier wave to each carrier wave, namely carries out power compression according to the order of property parameters one by one to each carrier wave.
Property parameters in the present embodiment can be the transmission block length that E-TFCI, this E-TFCI can represent data to be sent.
Property parameters in the present embodiment can also be DPCCH power.
Property parameters in the present embodiment can also be SG parameter, and under multi-carrier mode, the corresponding SG parameter of each carrier wave, the parameter that UE can issue according to network side upgrades SG.
This SG parameter carries out enhancing dedicated channel transport format combination (E-TFC for limiting UE, E-DCH TransportFormat Combination) select the maximum power that allows, this SG parameter can be made up of a list, comprises call number and gain factor (namely corresponding real power bias).
It should be noted that, first carrier in the present embodiment can be the carrier wave at the maximum data place to be sent of E-TFCI, or the carrier wave that SG parameter is maximum, or the carrier wave at the minimum data place to be sent of E-TFCI, or the carrier wave that SG parameter is minimum, or the prominent carrier wave of DPCCH, or the carrier wave that DPCCH power is minimum.
In actual applications, concrete property parameters can also be the property parameters of other types, is not construed as limiting herein.
The concrete power compression mode to first carrier can be: compress E-DPDCH gain factor whole on first carrier, the mode of concrete power compression is identical with the mode of the power compression for single carrier in prior art, for the common practise of those skilled in the art, be not construed as limiting herein.
Multiple property parameters can be adopted in the present embodiment to carry out the compression of order, so the flexibility of compression process can be improved to each carrier wave.
205, judge whether the transmitting power of carrying out after power compression meets maximum transmission power restriction (that is: whether the transmitting power after compression is less than or equal to maximum transmission power), if so, then perform step 203, if not, then perform step 206.
206, continue to carry out power compression to next carrier wave according to property parameters order, and repeat step 205, until meet the maximum transmission power of UE.
In the present embodiment, if after carrying out power compression to first carrier, transmitting power still cannot meet maximum transmission power restriction, then can the order of parameter continue to carry out power compression to other carrier wave in order, and after power compression is carried out to each carrier wave, all judge whether transmitting power meets maximum transmission power restriction, if meet, then stop compression, and perform step 203, if do not meet, then continue compression.
In the present embodiment, if the carrier wave at the first carrier data place to be sent that to be E-TFCI maximum, power compression can be carried out according to the carrier wave of order to each data place to be sent that E-TFCI is descending.
If the carrier wave at the first carrier data place to be sent that to be E-TFCI minimum, can carry out power compression according to the carrier wave of order to each data place to be sent that E-TFCI is ascending.
If the first carrier carrier wave that to be SG parameter maximum, can carry out power compression according to the carrier wave of order to each data place to be sent that SG parameter is descending.
If the first carrier carrier wave that to be SG parameter minimum, can carry out power compression according to the carrier wave of order to each data place to be sent that SG parameter is ascending.
If first carrier is the prominent carrier wave of DPCCH, power compression can be carried out according to the carrier wave of order to each data place to be sent that DPCCH power is descending.
If the first carrier carrier wave that to be DPCCH power minimum, can carry out power compression according to the carrier wave of order to each data place to be sent that DPCCH power is ascending.
Identical with the mode of the aforementioned power compression to first carrier to the mode of the power compression of each carrier wave in the present embodiment, be the common practise of those skilled in the art.
In the present embodiment, after judging that the transmitting power of UE is greater than preset maximum transmission power, substep power compression can be carried out according to the property parameters of each carrier wave to each carrier wave, that is: according to the difference of the property parameters of each carrier wave, one by one power compression be carried out to each carrier wave.Therefore, the scheme that the present embodiment adopts, can carry out power compression according to the order of property parameters one by one to each carrier wave, achieve the power compression under multi-carrier case.
E-TFCI can be used in the present embodiment as property parameters, first can carry out power compression to the carrier wave at the maximum data place to be sent of E-TFCI, transmitting power needed for the data that transmission block length is larger is also larger, the transmitting power after compressing can be made easily to meet maximum transmission power restriction so first carry out power compression to the carrier wave at the maximum data place to be sent of E-TFCI, thus ensure the sending performance of the data that transmission block length is less.
E-TFCI can be used in the present embodiment as property parameters, first can also carry out power compression to the carrier wave at the minimum data place to be sent of E-TFCI, then can ensure to transmit the larger more transmitting power of data acquisition to be sent of block length, therefore can reduce the loss of data throughout to a certain extent.
It should be noted that, if after carrying out power compression to first carrier, transmitting power still cannot meet maximum transmission power restriction, then can carry out power compression according to said sequence to the second carrier wave.Be understandable that, after power compression is carried out to the second carrier wave, power compression can be removed to first carrier, that is: make the E-DPDCH gain factor of first carrier return to the numerical value before to first carrier compression, now only power compression has been carried out to the second carrier wave; Judge whether transmitting power meets maximum transmission power restriction again; If also do not meet the restriction of maximum transmission power, power compression can be carried out according to which to other carrier wave.Therefore, adopt and should scheme can compress less carrier wave as much as possible, the impact that power compression sends data can be reduced as far as possible.
For ease of understanding, be described with an example below: suppose there are two carrier waves, be respectively first carrier and the second carrier wave, the E-TFCI of the data to be sent of these two carrier waves increases successively, successively power compression is carried out to carrier wave according to the order that the E-TFCI of data to be sent is ascending in the present embodiment, maximum transmission power is 30dBm, and the transmitting power of UE is 33dBm, after separately power compression being carried out to first carrier, transmitting power is 31dBm, after separately power compression being carried out to the second carrier wave, transmitting power is 29dBm, then concrete power compression process can be:
First power compression is carried out to first carrier, transmitting power after compression is 31dBm, still exceed maximum transmission power, then power compression is carried out to the second carrier wave, now in order to reduce the number carrying out the carrier wave of power compression as far as possible, power compression can be removed to first carrier, then before power compression is carried out to the second carrier wave, the transmitting power of UE is still 33dBm, after separately power compression being carried out to the second carrier wave, transmitting power is 29dBm, meets maximum transmission power restriction, therefore only needs to carry out power compression to the second carrier wave.
It should be noted that, describe in above-mentioned example be separately power compression is carried out to the second carrier wave after, transmitting power can meet the situation of maximum transmission power restriction, if in actual applications, after separately power compression being carried out to the second carrier wave, transmitting power also cannot meet maximum transmission power restriction, so also needs the first carrier to removing power compression again to carry out power compression, such as:
Maximum transmission power is 30dBm, and the transmitting power of UE is 33dBm, and after carrying out power compression to first carrier separately, transmitting power is 32dBm, and after carrying out power compression to the second carrier wave separately, transmitting power is 31dBm.
First power compression is carried out to first carrier, transmitting power after compression is 32dBm, still exceed maximum transmission power, then power compression is carried out to the second carrier wave, now in order to reduce the number carrying out the carrier wave of power compression as far as possible, power compression can be removed to first carrier, then before power compression is carried out to the second carrier wave, the transmitting power of UE is be still 33dBm, after separately power compression being carried out to the second carrier wave, transmitting power is 31dBm, also maximum transmission power restriction cannot be met, so now again carry out power compression to first carrier, namely first carrier and the second carrier wave all carry out power compression.
Select the least possible carrier wave to carry out power compression in the present embodiment, thus ensure that the data to be sent on most of carrier wave are unaffected, improve data sending performance.
In the present embodiment, if after all having carried out power compression to each carrier wave, transmitting power still cannot meet maximum transmission power restriction (transmitting power namely after whole carrier wave compression is still greater than maximum transmission power), then perform additional compression process, the transmitting power after final compression is made to be less than or equal to maximum transmission power, the process of concrete additional compression can be: directly compress the transmitting power of each carrier wave according to the gap between transmitting power and maximum transmission power, the total transmitting power after compressing is made to be less than or equal to maximum transmission power, additional compression in the present embodiment can be compressed according to identical ratio all carrier waves, also can different ratios be adopted to compress different carrier waves, concrete additional compression mode is not construed as limiting herein.
It should be noted that, the additional compression in the present embodiment and power compression are not identical.
First, power compression only compresses the gain factor of E-DPDCH channel, and additional compression directly compresses transmitting power.
Secondly, in the process of additional compression, need to keep original power proportions between DPCCH and DPDCH constant, keep original power proportions between DPCCH and HS-DPCCH constant, keep original power proportions between DPCCH and E-DPCCH constant, and keep the power proportions between DPCCH and E-DPDCH constant, be namely all jointly compress by original gain factor to each channel.
It should be noted that, power proportions between DPCCH and E-DPDCH is not the ratio before carrying out power compression, but E-DPDCH reaches the minimum value that can be compressed to of agreement regulation after compression, the power proportions of the minimum value that the process need of additional compression keeps DPCCH and E-DPDCH to be compressed to is constant.
In the present embodiment, the detailed process of additional compression is the common practise of those skilled in the art, is not construed as limiting herein.
In the present embodiment after all power compression is performed to all carrier waves, if the transmitting power of UE still cannot meet maximum transmission power restriction, then can proceed additional compression process, thus effectively ensure that the power under multicarrier controls to be achieved.
Above the Poewr control method in the embodiment of the present invention is introduced, what describe in the above embodiments is the scheme of each carrier wave being carried out to substep power compression, introduce the scheme of each carrier wave being carried out to synchronizing power compression below, refer to Fig. 3, in the embodiment of the present invention Poewr control method again an embodiment comprise:
301, the transmitting power of UE is calculated.
The process calculating the transmitting power of UE in the present embodiment is consistent with the process calculating the transmitting power of UE in abovementioned steps 201, repeats no more herein.
302, judge whether the transmitting power of UE exceedes preset maximum transmission power, if so, then perform step 304, if not, then perform step 303.
303, data to be sent are sent and process ends.
If the transmitting power of UE is less than or equal to maximum transmission power, then UE can directly send the data to be sent of each carrier wave, and the process of transmission is the common practise of those skilled in the art, is not construed as limiting herein.
304, according to preset compression factor, synchronizing power compression is carried out to each carrier wave.
If the transmitting power of UE is greater than maximum transmission power, then UE just can carry out data transmission after needing first to carry out power compression.
Power compression mode concrete in the present embodiment is: carry out synchronizing power compression according to preset compression factor to each carrier wave, namely power compression is carried out to all carrier waves all simultaneously, the compression factor of the power compression of each carrier wave can be the same or different, after more all power compression being carried out to all carrier waves, judge whether transmitting power meets maximum transmission power restriction, if meet, then send the data to be sent on each carrier wave.
In the present embodiment, after the transmitting power of UE is greater than preset maximum transmission power, synchronizing power compression can be carried out to each carrier wave according to preset compression factor, namely all power compression is carried out to all carrier waves simultaneously, therefore, it is possible to carry out power compression to each carrier wave simultaneously, so the power compression under achieving multi-carrier case.
For ease of understanding, be described in detail above-mentioned Poewr control method with an instantiation below, refer to Fig. 4, in the embodiment of the present invention, the another embodiment of Poewr control method comprises:
401, the transmitting power of UE is calculated.
The process calculating the transmitting power of UE in the present embodiment is consistent with the process calculating the transmitting power of UE in abovementioned steps 301, repeats no more herein.
402, judge whether the transmitting power of UE exceedes preset maximum transmission power, if so, then perform step 404, if not, then perform step 403.
403, data to be sent are sent and process ends.
If the transmitting power of UE is less than or equal to maximum transmission power, then UE can directly send the data to be sent of each carrier wave, and the process of transmission is the common practise of those skilled in the art, is not construed as limiting herein.
404, according to the ratio between each carrier wave property parameters, power compression is carried out to each carrier wave simultaneously.
If the transmitting power of UE is greater than maximum transmission power, then UE just can carry out data transmission after needing first to carry out power compression.
Power compression mode concrete in the present embodiment is: carry out synchronizing power compression according to preset compression factor to each carrier wave, namely carries out power compression to all carrier waves all simultaneously.
In the present embodiment, the compression factor of the power compression of each carrier wave is relevant with the property parameters of himself, and concrete property parameters can be E-TFCI, or SG parameter, or DPCCH power.
In actual applications, concrete property parameters can also be the property parameters of other types, is not construed as limiting herein.
After the property parameters getting each carrier wave, the ratio between the property parameters that can calculate each carrier wave.
It should be noted that, if using E-TFCI or SG parameter as property parameters, then the compression factor that each carrier wave carries out power compression is directly proportional to property parameters, that is: property parameters is larger, then compression factor is higher; Or the compression factor that each carrier wave carries out power compression also can be inversely proportional to property parameters, that is: property parameters is less, then compression factor is higher.
If using DPCCH power as property parameters, then each carrier wave carries out the compression factor of power compression and property parameters is inversely proportional to, namely property parameters is less, then compression factor is higher, or the compression factor that each carrier wave carries out power compression also can be directly proportional to property parameters, namely property parameters is larger, then compression factor is higher.
It should be noted that, what describe in above-mentioned steps 404 is the scheme that compression factor is relevant to the property parameters of each carrier wave, be understandable that, in other embodiments of the invention, the compression factor of the power compression of each carrier wave can not rely on the property parameters of each carrier wave equally, and directly adopting a preset identical numerical value, namely all carrier waves are all using this identical numerical value as compression factor during power compression.
Above-mentionedly determine concrete compression factor, then determine in conjunction with the gap between transmitting power and maximum transmission power the concrete numerical value that compresses then to carry out power compression to each carrier wave.Namely concrete power compression is compress the E-DPDCH gain factor of each carrier wave simultaneously, the mode of concrete power compression is identical with the mode of the power compression for single carrier in prior art, for the common practise of those skilled in the art, be not construed as limiting herein.
In the present embodiment, after determining that the transmitting power of UE is greater than preset maximum transmission power, synchronizing power compression can be carried out according to preset compression factor to each carrier wave, that is: all power compression is carried out to all carrier waves simultaneously.Therefore, adopt the scheme of the present embodiment can carry out power compression to each carrier wave simultaneously, achieve the power compression under multi-carrier case.
In the present embodiment, if after all having carried out power compression to each carrier wave, transmitting power still cannot meet maximum transmission power restriction (transmitting power namely after whole carrier wave compression is still greater than maximum transmission power), then can perform additional compression process, the transmitting power after final compression is made to be less than or equal to maximum transmission power, the process of concrete additional compression is consistent with the additional compression process described in the embodiment shown in earlier figures 2, repeats no more herein.
In the present embodiment after all power compression is performed to all carrier waves, if transmitting power still cannot meet maximum transmission power restriction, then can proceed additional compression process, thus effectively ensure that the power under multicarrier controls to be achieved.
Be described the output control device in the embodiment of the present invention below, refer to Fig. 5, an embodiment of output control device of the present invention comprises:
First computing unit 501, for calculating the transmitting power of UE;
First verification unit 502, for judging whether the transmitting power of the UE that the first computing unit 501 calculates exceedes preset maximum transmission power;
Substep compression unit 503, for when the transmitting power of described UE exceedes preset maximum transmission power, carries out substep power compression according to the property parameters of described each carrier wave to described each carrier wave.
Wherein, the first computing unit 501 calculates the embodiment of the Poewr control method that the method for the transmitting power of UE can be shown in Figure 1.
Property parameters in the present embodiment can be E-TFCI, SG parameter or DPCCH power, or can also be the property parameters of other types, is not construed as limiting herein.
In the present embodiment, after the first verification unit 502 determines that the transmitting power of UE is greater than preset maximum transmission power, substep compression unit 503 can carry out substep power compression according to the property parameters of each carrier wave to each carrier wave, that is: according to the difference of the property parameters of each carrier wave, one by one power compression is carried out to each carrier wave.Therefore, the output control device adopting the present embodiment to provide, can carry out power compression according to the order of property parameters one by one to each carrier wave, achieve the power compression under multi-carrier case.
For ease of understanding, be described above-mentioned output control device with an instantiation below, refer to Fig. 6, another embodiment of output control device of the present invention comprises:
First computing unit 601, for calculating the transmitting power of UE;
First verification unit 602, for judging whether the transmitting power of the UE that the first computing unit 601 calculates exceedes preset maximum transmission power;
Substep compression unit 603, for when the transmitting power of described UE exceedes preset maximum transmission power, carries out substep power compression according to the property parameters of described each carrier wave to described each carrier wave.
Substep compression unit 603 comprises as at least one in lower unit:
First substep compression unit 6031, for carrying out power compression to first carrier, described first carrier is the carrier wave transmitting the maximum data place to be sent of block length, judge whether transmitting power meets maximum transmission power restriction, if do not meet, then according to the order that transmission block length is descending, power compression is carried out to next carrier wave;
Second substep compression unit 6032, for carrying out power compression to first carrier, described first carrier is the carrier wave transmitting the minimum data place to be sent of block length, judge whether transmitting power meets maximum transmission power restriction, if do not meet, then according to the order that transmission block length is ascending, power compression is carried out to next carrier wave;
3rd substep compression unit 6033, for carrying out power compression to first carrier, described first carrier is the maximum carrier wave of service authorization parameter, judge whether transmitting power meets maximum transmission power restriction, if do not meet, then according to the order that service authorization parameter is descending, power compression is carried out to next carrier wave;
4th substep compression unit 6034, for carrying out power compression to first carrier, described first carrier is the minimum carrier wave of service authorization parameter, judge whether transmitting power meets maximum transmission power restriction, if do not meet, then according to the order that service authorization parameter is ascending, power compression is carried out to next carrier wave;
5th substep compression unit 6035, for carrying out power compression to first carrier, described first carrier is the maximum carrier wave of special physical control channel power, judge whether transmitting power meets maximum transmission power restriction, if do not meet, then carry out power compression according to the next carrier wave of the order that special physical control channel power is descending;
6th substep compression unit 6036, for carrying out power compression to first carrier, described first carrier is the minimum carrier wave of special physical control channel power, judge whether transmitting power meets maximum transmission power restriction, if do not meet, then according to the order that special physical control channel power is ascending, power compression is carried out to next carrier wave.
In the present embodiment, in substep compression unit 603, to perform the mode of the power compression described in the mode of power compression and earlier figures 1 and the embodiment of the method shown in Fig. 2 similar for each unit, repeats no more herein.
Output control device in the present embodiment can further include: additional compression performance element 604, for maximum transmission power restriction still cannot be met when substep compression unit 603 to all carrier waves transmitting power performed after power compression, then trigger additional compression performance element 604 and perform additional compression.
In the present embodiment, if the transmitting power after all performing power compression to all carrier waves still cannot meet maximum transmission power restriction, then additional compression performance element 604 can proceed additional compression process, thus effectively ensures that the power under multicarrier controls to be achieved.
Output control device in the present embodiment can further include: compression recovery unit 605, for when described substep compression unit carries out power compression to next carrier wave, removes the power compression of a carrier wave.
Concrete releasing power compression can be: return to before carrying out power compression to first carrier by the E-DPDCH gain factor of first carrier, the E-DPDCH gain factor of first carrier.
In the present embodiment, after the first verification unit 602 determines that the transmitting power of UE is greater than preset maximum transmission power, substep compression unit 603 can carry out substep power compression according to the property parameters of each carrier wave to each carrier wave, that is: according to the difference of the property parameters of each carrier wave, one by one power compression is carried out to each carrier wave.Therefore, the output control device adopting the present embodiment to provide, can carry out power compression according to the order of property parameters one by one to each carrier wave, achieve the power compression under multi-carrier case.
Refer to Fig. 7, the output control device in a embodiment of the present invention again embodiment comprises:
Second computing unit 701, for calculating the transmitting power of UE;
Second verification unit 702, whether the transmitting power for the UE calculated according to the second computing unit 701 exceedes preset maximum transmission power;
Synchronous compression unit 703, for when the transmitting power of described UE exceedes preset maximum transmission power, carries out synchronizing power compression according to preset compression factor to described each carrier wave.
In the present embodiment, preset compression factor is the ratio between the property parameters of preset same ratio or each carrier wave.
It should be noted that, in the present embodiment synchronous compression unit 703 perform synchronizing power compression process consistent with the synchronous compression process described in Fig. 3 or Fig. 4, repeat no more herein.
Output control device in the present embodiment can further include: additional compression performance element 704, for maximum transmission power restriction still cannot be met when synchronous compression unit 703 to all carrier waves transmitting power performed after power compression, then trigger additional compression performance element 704 and perform additional compression.
In the present embodiment, after the second verification unit 702 determines that the transmitting power of UE is greater than preset maximum transmission power, synchronous compression unit 703 can carry out synchronizing power compression according to preset compression factor to each carrier wave, that is: all carry out power compression to all carrier waves simultaneously.Therefore, the output control device adopting the present embodiment to provide, can carry out power compression to each carrier wave simultaneously, achieve the power compression under multi-carrier case.
In the present embodiment, transmitting power after synchronous compression unit 703 all performs power compression to all carrier waves still cannot meet maximum transmission power restriction, then additional compression performance element 704 can proceed additional compression process, thus effectively ensures that the power under multicarrier controls to be achieved.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is that the hardware that can carry out instruction relevant by program has come, this program can be stored in a computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
The Poewr control method provided the embodiment of the present invention above and device are described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (11)
1. a Poewr control method, is characterized in that, comprising:
When subscriber equipment sends data by multiple carrier wave, calculate the transmitting power of described subscriber equipment;
When the transmitting power of described subscriber equipment exceedes preset maximum transmission power, the property parameters according to each carrier wave carries out substep power compression to each carrier wave described;
Wherein, the described property parameters according to each carrier wave carries out substep power compression to each carrier wave described and comprises:
According to the order of the property parameters of each carrier wave described, one by one power compression is carried out to each carrier wave, and after power compression is carried out to each carrier wave, judge whether described transmitting power meets maximum transmission power restriction; If do not meet, according to the order of the property parameters of each carrier wave, power compression is carried out to next carrier wave; If meet, then stop power compression and the data to be sent sent on described each carrier wave.
2. method according to claim 1, is characterized in that, the described property parameters according to each carrier wave carries out substep power compression to each carrier wave described and comprises:
Carry out power compression to first carrier, described first carrier is the carrier wave transmitting the maximum data place to be sent of block length;
If do not meet the restriction of described maximum transmission power to the transmitting power after described first carrier carries out power compression;
Transmission block length order from big to small according to the data to be sent of each carrier wave carries out power compression to next carrier wave;
Or the described property parameters according to each carrier wave carries out substep power compression to each carrier wave described and comprises:
Carry out power compression to first carrier, described first carrier is the carrier wave transmitting the minimum data place to be sent of block length;
If do not meet the restriction of described maximum transmission power to the transmitting power after described first carrier carries out power compression;
Transmission block length order from small to large according to the data to be sent of each carrier wave carries out power compression to next carrier wave;
Or the described property parameters according to each carrier wave carries out substep power compression to each carrier wave described and comprises:
Carry out power compression to first carrier, described first carrier is the maximum carrier wave of service authorization parameter;
If do not meet the restriction of described maximum transmission power to the transmitting power after described first carrier carries out power compression;
Service authorization parameter order from big to small according to each carrier wave carries out power compression to next carrier wave;
Or the described property parameters according to each carrier wave carries out substep power compression to each carrier wave described and comprises:
Carry out power compression to first carrier, described first carrier is the minimum carrier wave of service authorization parameter;
If do not meet the restriction of described maximum transmission power to the transmitting power after described first carrier carries out power compression;
Service authorization parameter order from small to large according to each carrier wave carries out power compression to next carrier wave;
Or the described property parameters according to each carrier wave carries out substep power compression to each carrier wave described and comprises:
Carry out power compression to first carrier, described first carrier is the minimum carrier wave of special physical control channel power;
If do not meet the restriction of described maximum transmission power to the transmitting power after described first carrier carries out power compression;
Special physical control channel power order from small to large according to each carrier wave carries out power compression to next carrier wave.
3. method according to claim 2, is characterized in that, also comprises:
When carrying out power compression to next carrier wave, remove the power compression of a carrier wave.
4. method according to claim 3, is characterized in that, the power compression of the upper carrier wave of described releasing comprises:
The enhancing gain factor of special physical data channel of a upper carrier wave is returned to before power compression is carried out to a carrier wave on described, the gain factor of special physical data channel of a described upper carrier wave.
5. method according to claim 2, is characterized in that, if do not meet maximum transmission power restriction to all carrier waves transmitting power of having carried out after power compression, then performs preset additional compression program.
6. method according to claim 1, is characterized in that, the described property parameters according to each carrier wave carries out substep power compression to each carrier wave described and comprises:
Substep compression is carried out according to the enhancing gain factor of special physical data channel of property parameters to described each carrier wave of each carrier wave.
7. an output control device, is characterized in that, comprising:
First computing unit, for when subscriber equipment sends data by multiple carrier wave, calculates the transmitting power of described subscriber equipment;
First verification unit, for judging whether the transmitting power of the described subscriber equipment that described first computing unit calculates exceedes preset maximum transmission power;
Described output control device also comprises:
Substep compression unit, for when the transmitting power of described subscriber equipment exceedes preset maximum transmission power, carries out substep power compression according to the property parameters of described each carrier wave to described each carrier wave;
Wherein, described substep compression unit, be further used for carrying out power compression according to the order of the property parameters of each carrier wave described one by one to each carrier wave, and after power compression is carried out to each carrier wave, judge whether described transmitting power meets maximum transmission power restriction; If do not meet, according to the order of the property parameters of each carrier wave, power compression is carried out to next carrier wave; If meet, then stop power compression and the data to be sent sent on described each carrier wave.
8. output control device according to claim 7, is characterized in that, described substep compression unit comprises as at least one in lower unit:
First substep compression unit, for carrying out power compression to first carrier, described first carrier is the carrier wave transmitting the maximum data place to be sent of block length, if after carrying out power compression to described first carrier, transmitting power does not meet maximum transmission power restriction, and the transmission block length order from big to small according to the data to be sent of each carrier wave carries out power compression to next carrier wave;
Second substep compression unit, for carrying out power compression to first carrier, described first carrier is the carrier wave transmitting the minimum data place to be sent of block length, if after carrying out power compression to described first carrier, transmitting power does not meet maximum transmission power restriction, and the transmission block length order from small to large according to the data to be sent of each carrier wave carries out power compression to next carrier wave;
3rd substep compression unit, for carrying out power compression to first carrier, described first carrier is the maximum carrier wave of service authorization parameter, if after carrying out power compression to described first carrier, transmitting power does not meet maximum transmission power restriction, and the service authorization parameter order from big to small according to each carrier wave carries out power compression to next carrier wave;
4th substep compression unit, for carrying out power compression to first carrier, described first carrier is the minimum carrier wave of service authorization parameter, if after carrying out power compression to described first carrier, transmitting power does not meet maximum transmission power restriction, and the service authorization parameter order from small to large according to each carrier wave carries out power compression to next carrier wave;
5th substep compression unit, for carrying out power compression to first carrier, described first carrier is the minimum carrier wave of special physical control channel power, if after carrying out power compression to described first carrier, transmitting power does not meet maximum transmission power restriction, and the special physical control channel power order from small to large according to each carrier wave carries out power compression to next carrier wave.
9. output control device according to claim 7, is characterized in that, described output control device also comprises:
Compression recovery unit, for when described substep compression unit carries out power compression to next carrier wave, removes the power compression of a carrier wave.
10. output control device according to claim 7, is characterized in that, described substep compression unit, is further used for carrying out substep compression according to the enhancing gain factor of special physical data channel of property parameters to described each carrier wave of each carrier wave.
11. output control devices according to claim 7, is characterized in that, described output control device also comprises:
Additional compression unit, after all performing power compression when described substep compression unit to all carrier waves, if transmitting power does not meet maximum transmission power restriction yet, then performs additional compression program.
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| CN2009801236555A CN102077656B (en) | 2009-04-27 | 2009-04-27 | A power control method and apparatus |
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| CN2009801236555A Division CN102077656B (en) | 2009-04-27 | 2009-04-27 | A power control method and apparatus |
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| EP3240333B1 (en) * | 2015-01-16 | 2018-10-03 | Huawei Technologies Co., Ltd. | Method and device for controlling transmit power of user equipment |
| CN107306447B (en) * | 2016-04-25 | 2020-01-17 | 普天信息技术有限公司 | Method, device and equipment for power control of direct communication between vehicles |
| CN108781408B (en) * | 2016-08-01 | 2021-04-09 | 华为技术有限公司 | Transmission power compression method and terminal equipment |
| CN109151892B (en) * | 2017-06-16 | 2021-08-06 | 中国信息通信研究院 | Power control method and device based on uplink multi-carrier simultaneous transmission |
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| CN1303543A (en) * | 1998-06-29 | 2001-07-11 | 诺基亚网络有限公司 | Power control in multi-carrier radio transmitter |
| CN101170331A (en) * | 2007-11-13 | 2008-04-30 | 中兴通讯股份有限公司 | Marking method and device for carrier transmission power of multi-carrier radio communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303543A (en) * | 1998-06-29 | 2001-07-11 | 诺基亚网络有限公司 | Power control in multi-carrier radio transmitter |
| CN101170331A (en) * | 2007-11-13 | 2008-04-30 | 中兴通讯股份有限公司 | Marking method and device for carrier transmission power of multi-carrier radio communication system |
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