Embodiment
Scene to inter-band CA; The scheme that does not also have a kind of uplink power control; Embodiment of the invention subscriber equipment is confirmed the transmission power level of the up channel on each carrier wave; Whether the transmission power level sum of judging each up channel in all frequency bands is greater than the permission maximum transmit power value of subscriber equipment; The transmission power level sum of each up channel in judging all frequency bands is during greater than the permission maximum transmit power value of subscriber equipment; Reduce the proportionality coefficient value according to the permission maximum transmit power value of subscriber equipment and the corresponding power of each frequency band and carry out power and reduce, make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.Because can be under the scene of inter-band CA; Reasonably uplink transmission power is distributed to different channels; Realized effective UE uplink power control; Avoided causing the situation of sending failure, thereby improved systematic function because total transmitting power of UE on all carrier waves surpasses when maximum allows transmitting power.
Below in conjunction with Figure of description the embodiment of the invention is described in further detail.
In the LTE-A system; When the carrier wave of UE polymerization/activation belongs to different frequency bands (band); If that all are in is identical, the transmitting power sum of the up channel on all carrier waves of different band has surpassed the permission maximum transmission power of UE; UE need carry out power and reduce, and is no more than the maximum transmission power that UE allows with the transmitting power sum that satisfies the up channel on all carrier waves that are in identical, different band, and concrete power reduction method is referring to Fig. 3.
As shown in Figure 3, the method for embodiment of the invention uplink power control comprises the following steps:
Step 301, subscriber equipment are confirmed the transmission power level of the up channel on each carrier wave according to the maximum transmit power value of each carrier wave and the power contorl parameters value of each carrier wave correspondence;
Whether the transmission power level sum that step 302, subscriber equipment are judged each up channel in all frequency bands is greater than the permission maximum transmit power value of subscriber equipment;
Step 303, the transmission power level sum during of judging each up channel in all frequency bands when subscriber equipment greater than the permission maximum transmit power value of subscriber equipment; Reduce the proportionality coefficient value according to the permission maximum transmit power value of subscriber equipment and the corresponding power of each frequency band and carry out power and reduce, make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Preferably; When subscriber equipment judged that the transmission power level sum of each up channel in all frequency bands is not more than the permission maximum transmit power value of subscriber equipment, subscriber equipment sent up channel according to the transmission power level of the up channel of each carrier wave in each frequency band of confirming.
In force; It is that subscriber equipment and network side are made an appointment that the power that each frequency band is corresponding reduces the proportionality coefficient value; Or network side disposes to subscriber equipment through high-level signaling or PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) signaling;
Wherein, the power that each frequency band is corresponding reduces the proportionality coefficient value and is not more than 1 and be not less than 0.
Preferably, high-level signaling includes but not limited at least a in the following signaling:
RRC (Radio Resource Control, Radio Resource control) signaling and MAC (Medium Access Control, medium access control) signaling.
Preferably, power reduces the proportionality coefficient value can be confirmed based on the characteristic of different band, for example the transmission information type of frequency position, bandwidth, channel status, configuration, business etc.
Wherein, it is identical or different that the power that different frequency bands is corresponding reduces the proportionality coefficient value;
When the power of different frequency bands reduces the proportionality coefficient value when identical, power reduces proportionality coefficient and can not dispose or not arrange.
Preferably; Subscriber equipment reduces the proportionality coefficient value according to the permission maximum transmit power value and the corresponding power of each frequency band of subscriber equipment; According to channel priority from low to high or order from high to low successively up channel is carried out power and reduces, make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Preferably, the priority of up channel is:
There is not PRACH (Physical Random Access Channel; When Physical Random Access Channel) transmitting; PUCCH (Physical Uplink Control Channel; The priority of the PUSCH of priority Physical Uplink Control Channel)>carrying UCI (Uplink Control Information, ascending control information) (Physical Uplink Shared Channel, Physical Uplink Shared Channel)>the do not carry priority of the PUSCH of UCI;
When the PRACH transmission is arranged; The priority of the PUSCH of the priority of priority>PRACH of PUCCH>carrying UCI>do not carry the priority of the PUSCH of UCI, or the priority of the PUSCH of the priority of priority>PUCCH of PRACH>carrying UCI>the do not carry priority of the PUSCH of UCI.More excellent, do not get rid of other priority level initializing modes.
In the enforcement, the mode that subscriber equipment reduces proportionality coefficient value adjustment power according to power has a variety of, enumerates several kinds below, specifically referring to Fig. 4~Fig. 7.
As shown in Figure 4, first kind of ascending power control method that reduces same ratio of the embodiment of the invention comprises the following steps:
Step 401, subscriber equipment are confirmed the transmission power level of the up channel on each carrier wave according to the maximum transmit power value of each carrier wave and the power contorl parameters value of each carrier wave correspondence;
Whether the transmission power level sum that step 402, subscriber equipment are judged each up channel in all frequency bands is greater than the permission maximum transmit power value of subscriber equipment;
Wherein, subscriber equipment can not carry out power according to channel priority and reduce, and also can carry out power according to channel priority and reduce.
Not carrying out power according to channel priority reduces: step 403, the transmission power level sum during greater than the permission maximum transmit power value of subscriber equipment of judging each up channel in all frequency bands when subscriber equipment; The transmission power level of each up channel in all frequency bands is carried out equal proportion reduce, make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Carrying out power according to channel priority reduces: step 403, subscriber equipment carry out equal proportion power to the channel with same channel priority in all frequency bands and reduce, and make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Reduce if carry out power, specifically comprise according to channel priority:
When the corresponding power reduction proportionality coefficient of each band is identical: based on permission maximum transmission power and the channel priority of UE; The channel with same channel priority in all band is carried out equal proportion power reduce, be no more than the maximum transmission power that UE allows with the transmitting power sum that satisfies the up channel on all carrier waves in power reduction all band of back;
More excellent; It is identical that equal proportion power in the above-mentioned steps 403 reduces the power reduction proportionality coefficient that is equivalent to each frequency band (band) correspondence; At this moment, can not dispose the corresponding power of each band and reduce proportionality coefficient, UE is identical to all band with base station this proportionality coefficient of agreement.
When carrying out the power reduction based on channel priority, the preferential channel transmitting power that reduces with low channel priority;
Channel priority during power division in all band is PUSCH>the do not carry PUSCH of UCI of PUCCH>carrying UCI; The transmitting power of promptly preferential assurance PUCCH does not reduce; In the available launch power beyond the maximum transmission power that UE allows is removed the PUCCH transmitting power; The preferential PUSCH power that carries UCI that guarantees does not reduce, and reduces the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE;
Perhaps; If there is the PRACH transmission; The priority of the power division in all band is PUSCH>the do not carry PUSCH of UCI of PUCCH>PRACH>carrying UCI; The transmitting power of promptly preferential assurance PUCCH does not reduce, and in the available launch power beyond the maximum transmission power that UE allows is removed the PUCCH transmitting power, guarantees that preferentially the transmitting power of PRACH does not reduce; In the available launch power beyond the maximum transmission power that UE allows is removed PUCCH and PRACH transmitting power; The preferential PUSCH power that carries UCI that guarantees does not reduce, and reduces the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE; The perhaps PUSCH of PRACH>PUCCH>carrying UCI>the do not carry PUSCH of UCI; The transmitting power of promptly preferential assurance PRACH does not reduce; In the available launch power beyond the maximum transmission power that UE allows is removed the PRACH transmitting power; The preferential transmitting power of PUCCH that guarantees does not reduce, and in the available launch power beyond the maximum transmission power that UE allows is removed PRACH and PUCCH transmitting power, the preferential PUSCH power that carries UCI that guarantees does not reduce; Reduce the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE.
Such as; Among Fig. 8; It (is that each band has disposed an expansion carrier wave E-cell as the carrier wave of transmission PUCCH that carrier wave 1 among the UE polymerization band1 and carrier wave 2, and the carrier wave among the band2 3, carrier wave 4 and carrier wave 5 carry out uplink, each band have all disposed a particular carrier; Be similar to the Pcell among the Rel-10), the concrete behavior of UE is following:
UE calculates the PUCCH transmitting power P among band1 and the band2 at first according to formula (1) respectively according to b=1 and b=2
PUCCH, 1(i) and P
PUCCH, 2(i), wherein b is the band numbering;
Calculate the PUSCH transmitting power P that does not have PUCCH to transmit simultaneously among band1 and the band2 according to formula (2) then at a carrier wave
PUSCH, 2(i), P
PUSCH, 4(i) and P
PUSCH, 5(i);
Calculate the PUSCH transmitting power P that on a carrier wave, has PUCCH simultaneously among the band2 according to formula (3)
PUSCH, 3(i);
Formula (1);
Formula (2);
Formula (3).
UE judges further whether the transmitting power sum of the up channel on all carrier waves among all band surpasses the maximum transmission power that UE allows:
Work as judgement
The time, need carry out power and reduce, suppose that carrying out power based on channel priority reduces, and specifically comprises:
UE guarantees preferentially that to all channels among all band the transmitting power of PUCCH does not reduce, and residue UE power is preferentially satisfied the PUSCH that carries UCI send, and the channel (as not carrying the PUSCH of UCI) with identical low priority is reduced same ratio power;
Particularly; If
be j=2,3 wherein; Total transmitting power of promptly carrying the PUSCH of UCI has surpassed residue UE power; Then according to formula (4) PUSCH that carries UCI being carried out equal proportion power reduces; Be no more than the maximum transmission power that UE allows with the total transmitting power that satisfies all channels, j=2,3 wherein, b is the band numbering; In formula (4), w (i) reduces coefficient for power, and is identical to all PUSCH values, and its w of specific PUSCH (i) can be 0 (being that power can be reduced to 0); Transmitting power after UE reduces according to power is sent each up channel, and confirms not send the PUSCH that does not carry UCI (transmitting power that is these PUSCH is reduced to 0) in the current subframe;
Formula (4);
If
be j=2,3 wherein; Total transmitting power of promptly carrying the PUSCH of UCI does not surpass residue UE power; Therefore need not carry out power to the PUSCH that carries UCI reduces; Further according to formula (5) PUSCH that does not carry UCI being carried out equal proportion power reduces; Be no more than the maximum transmission power that UE allows with the total transmitting power that satisfies all channels, J=2,3 wherein, b is the band numbering; In formula (5), w (i) reduces coefficient for power, and is identical to all PUSCH values, and its w of specific PUSCH (i) can be 0 (being that power can be reduced to 0); Transmitting power after UE reduces according to power is sent each up channel;
Formula (5);
Wherein,
Work as judgement
The time, can directly send according to the rated output on each carrier wave among a plurality of band.
Need to prove, in the foregoing description, when not having the PUCCH transmission,
When not having the PUSCH transmission of carrying UCI,
Said process is suitable equally; In the said process
Be P
X(i) linear thresholding.
Again such as, among Fig. 9, the carrier wave 1 among the UE polymerization band1, carrier wave 2 and carrier wave 3, and the carrier wave among the band2 4 carries out uplink with carrier wave 5, only has a Pcell transmission PUCCH among a plurality of band, the concrete behavior of UE is following:
UE at first calculates the PUCCH transmitting power P among the band1 according to formula (1) b=1
PUCCH(i), wherein b is the band numbering; Calculate the PUSCH transmitting power P on the corresponding carrier wave among band1 and the band2 according to formula (2)
PUSCH, 2(i), P
PUSCH, 3(i), P
PUSCH, 4(i) and P
PUSCH, 5(i);
UE judges further whether the transmission power level sum of the up channel on all carrier waves among all band surpasses the maximum transmit power value that UE allows:
Work as judgement
The time, need carry out power and reduce, suppose that carrying out power based on channel priority reduces, and specifically comprises:
At first need guarantee the transmitting power of PUCCH; And will remain the PUSCH that the UE power division is given carrying UCI; The PUSCH that does not carry UCI is carried out equal proportion power according to formula (6) to be reduced; Be no more than the maximum transmission power that UE allows with the total transmitting power that satisfies all channels, j=2 wherein, b is the band numbering; In formula (6), w (i) reduces coefficient for power, and is identical to all PUSCH values, and its w of specific PUSCH (i) can be 0 (being that power can be reduced to 0); Transmitting power after UE reduces according to power is sent each up channel;
Formula (6);
Wherein,
Work as judgement
The time, can directly send according to the rated output on each carrier wave among a plurality of band;
Need to prove, in the foregoing description, when not having the PUCCH transmission,
When not having the PUSCH transmission of carrying UCI,
Said process is suitable equally; In the said process
Be P
X(i) linear thresholding.
Carry out the under powered example of equal proportion among above-mentioned Fig. 8 and Fig. 9 for not carrying out under powered scheme, need not distinguish the priority of different channels, all channels are reduced power simultaneously, repeat no more at this based on channel priority.
Again such as, among Figure 10, carrier wave among the UE polymerization band1 1 and carrier wave 2, and the carrier wave among the band2 3 carries out uplink with carrier wave 4, the concrete behavior of UE is following:
UE at first calculates the SRS on each carrier wave among band1 and the band2 (survey and use reference signal) transmitting power P according to formula (7)
SRS, 1, P
SRS, 2, P
SRS, 3And P
SRS, 4P
SRS, c(i)=min{P
CMAX, c(i), P
SRS_OFFSET, c(m)+10log
10(M
SRS, c)+P
O_PUSCH, c(j)+α
c(j) PL
c+ f
c(i) } formula (7);
UE judges further whether the SRS transmitting power sum on all carrier waves among all band surpasses the maximum transmission power that UE allows:
Promptly when judging
The time, need carry out power and reduce, owing to have only a kind of signal among Figure 10, reduce so do not carry out power here based on channel priority, specifically comprise:
According to formula (8) a plurality of SRS are carried out equal proportion power and reduce, be no more than the maximum transmission power that UE allows with the total transmitting power that satisfies all channels, wherein b is the band numbering; In formula (8), w (i) reduces coefficient for power, and is identical to all SRS (comprising cycle SRS and SRS aperiodic) value; Transmitting power after UE reduces according to power is sent each up channel;
Formula (8).
Work as judgement
The time, can directly send according to the SRS rated output on each carrier wave among a plurality of band;
Need to prove that when the SRS in the present embodiment replaced with PUSCH or PUCCH or PRACH channel, same being suitable for promptly was equivalent in not carrying out under powered scheme based on channel priority; In the said process
Be P
X(i) linear thresholding.
As shown in Figure 5, first kind of ascending power control method that reduces different proportion of the embodiment of the invention comprises the following steps:
Step 501, subscriber equipment are confirmed the transmission power level of the up channel on each carrier wave according to the maximum transmit power value of each carrier wave and the power contorl parameters value of each carrier wave correspondence;
Whether the transmission power level sum that step 502, subscriber equipment are judged each up channel in all frequency bands is greater than the permission maximum transmit power value of subscriber equipment;
Wherein, subscriber equipment can not carry out power according to channel priority and reduce, and also can carry out power according to channel priority and reduce.
Not carrying out power according to channel priority reduces: step 503, subscriber equipment reduce proportionality coefficient to each up channel that is in different frequency bands according to this up channel place corresponding power of frequency band and carry out the power reduction; Each up channel that is in identical frequency band is carried out equal proportion power reduce, make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Carrying out power according to channel priority reduces: step 503, subscriber equipment reduce proportionality coefficient to the up channel with equal priority that is in different frequency bands according to this up channel place corresponding power of frequency band and carry out the power reduction; The up channel with same channel priority that is in identical frequency band is carried out equal proportion power reduce, make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Reduce if carry out power, specifically comprise according to channel priority:
The power corresponding as each band reduces proportionality coefficient not simultaneously: based on the maximum transmission power and the channel priority of UE permission; The up channel with equal priority that is in different band is reduced proportionality coefficient according to the corresponding power of band carry out the power reduction; The channel with same channel priority that is in same band is carried out equal proportion power reduce, be no more than the maximum transmission power that UE allows with the transmitting power sum that satisfies all carrier waves in power reduction all band of back;
More excellent; Reduce proportionality coefficient based on the corresponding power of frequency band in the above-mentioned steps 503 and carry out under powered method; When the corresponding power reduction proportionality coefficient of each band is identical; For equal proportion power reduces, can not dispose the corresponding power of each band and reduce proportionality coefficient, UE is identical to all band with base station this proportionality coefficient of agreement; The power corresponding as each band reduces proportionality coefficient not simultaneously, and for non-equal proportion power reduces, it is to make an appointment in UE and base station that power reduces coefficient, or the base station disposes to UE's through high-level signaling or PDCCH signaling.
When carrying out the power reduction based on channel priority, the preferential channel transmitting power that reduces with low channel priority;
Channel priority during power division in all band is PUSCH>the do not carry PUSCH of UCI of PUCCH>carrying UCI; The transmitting power of promptly preferential assurance PUCCH does not reduce; In the available launch power beyond the maximum transmission power that UE allows is removed the PUCCH transmitting power; The preferential PUSCH power that carries UCI that guarantees does not reduce, and reduces the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE;
Perhaps; If there is the PRACH transmission; The priority of the power division in all band is PUSCH>the do not carry PUSCH of UCI of PUCCH>PRACH>carrying UCI; The transmitting power of promptly preferential assurance PUCCH does not reduce, and in the available launch power beyond the maximum transmission power that UE allows is removed the PUCCH transmitting power, guarantees that preferentially the transmitting power of PRACH does not reduce; In the available launch power beyond the maximum transmission power that UE allows is removed PUCCH and PRACH transmitting power; The preferential PUSCH power that carries UCI that guarantees does not reduce, and reduces the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE; The perhaps PUSCH of PRACH>PUCCH>carrying UCI>the do not carry PUSCH of UCI; The transmitting power of promptly preferential assurance PRACH does not reduce; In the available launch power beyond the maximum transmission power that UE allows is removed the PRACH transmitting power; The preferential transmitting power of PUCCH that guarantees does not reduce, and in the available launch power beyond the maximum transmission power that UE allows is removed PRACH and PUCCH transmitting power, the preferential PUSCH power that carries UCI that guarantees does not reduce; Reduce the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE.
Such as; Among Fig. 8; It (is that each band has disposed an expansion carrier wave E-cell as the carrier wave of transmission PUCCH that carrier wave 1 among the UE polymerization band1 and carrier wave 2, and the carrier wave among the band2 3, carrier wave 4 and carrier wave 5 carry out uplink, each band have all disposed a particular carrier; Be similar to the Pcell among the Rel-10), the concrete behavior of UE is following:
UE calculates the PUCCH transmitting power P among band1 and the band2 at first according to formula (1) respectively according to b=1 and b=2
PUCCH, 1(i) and P
PUCCH, 2(i), wherein b is the band numbering;
Calculate the PUSCH transmitting power P that does not have PUCCH to transmit simultaneously among band1 and the band2 according to formula (2) then at a carrier wave
PUSCH, 2(i), P
PUSCH, 4(i) and P
PUSCH, 5(i);
Calculate the PUSCH transmitting power P that on a carrier wave, has PUCCH simultaneously among the band2 according to formula (3)
PUSCH, 3(i);
UE judges further whether the transmitting power sum of the up channel on all carrier waves among all band surpasses the maximum transmission power that UE allows:
Work as judgement
The time, need carry out power and reduce, suppose that carrying out power based on channel priority reduces, and specifically comprises:
UE is to all channels among all band; The preferential transmitting power of PUCCH that guarantees does not reduce; Residue UE power is preferentially satisfied the PUSCH that carries UCI send, and the channel (as not carrying the PUSCH of UCI) with identical low priority is reduced coefficient according to specific power reduce power;
Particularly, if
J=2,3 wherein; Total transmitting power of promptly carrying the PUSCH of UCI has surpassed residue UE power; Then the PUSCH that carries UCI is carried out reducing based on specific power the power reduction of coefficient according to formula (9); Be no more than the maximum transmission power that UE allows with the total transmitting power that satisfies all channels, j=2,3 wherein, b is the band numbering; In formula (9), w
b(i) be the power reduction coefficient of the PUSCH among the different band, wherein b is the band numbering, can be different (to its w of PUSCH among some specific band to the PUSCH among the different band
b(i) can dispose or be decided to be 1 approximately, promptly not reduce power), the w that the PUSCH among the same band is corresponding identical
b(i); By high-level signaling or the configuration of PDCCH signaling; Perhaps send each up channel, and definitely do not send the PUSCH that does not carry UCI (transmitting power that is these PUSCH is reduced to 0) in the current subframe for UE and the base station transmitting power of UE after reducing according to power of making an appointment;
Formula (9);
If
J=2,3 wherein, total transmitting power of promptly carrying the PUSCH of UCI surpasses residue UE power, therefore need not carry out power to the PUSCH that carries UCI and reduce; Further the PUSCH that does not carry UCI is carried out reducing based on certain power the power reduction of coefficient according to formula (10); Be no more than the maximum transmission power that UE allows with the total transmitting power that satisfies all channels, j=2,3 wherein, b is the band numbering; In formula (10), w
b(i) be the power reduction coefficient of the PUSCH among the different band, wherein b is the band numbering, can be different (to its w of PUSCH among some specific band to the PUSCH among the different band
b(i) can dispose or be decided to be 1 approximately, promptly not reduce power), the w that the PUSCH among the same band is corresponding identical
b(i), by high-level signaling or the configuration of PDCCH signaling, perhaps make an appointment for UE and base station; Transmitting power after UE reduces according to power is sent each up channel;
Formula (10);
Wherein,
Work as judgement
The time, can directly send according to the rated output on each carrier wave among a plurality of band.
Need to prove, in the foregoing description, when not having the PUCCH transmission,
When not having the PUSCH transmission of carrying UCI,
Said process is suitable equally; In the said process
Be P
X(i) linear thresholding.
Again such as, among Fig. 9, the carrier wave 1 among the UE polymerization band1, carrier wave 2 and carrier wave 3, and the carrier wave among the band2 4 carries out uplink with carrier wave 5, only has a Pcell transmission PUCCH among a plurality of band, the concrete behavior of UE is following:
UE at first calculates the PUCCH transmitting power P among the band1 according to formula (1) b=1
PUCCH(i), wherein b is the band numbering; Calculate the PUSCH transmitting power P on the corresponding carrier wave among band1 and the band2 according to formula (2)
PUSCH, 2(i), P
PUSCH, 3(i), P
PUSCH, 4(i) and P
PUSCH, 5(i);
UE judges further whether the transmission power level sum of the up channel on all carrier waves among all band surpasses the maximum transmit power value that UE allows:
Work as judgement
The time, need carry out power and reduce, suppose that carrying out power based on channel priority reduces, and specifically comprises:
At first need guarantee the transmitting power of PUCCH; And will remain the PUSCH that the UE power division is given carrying UCI; The PUSCH that does not carry UCI is carried out reducing based on specific power the power reduction of coefficient according to formula (11); Be no more than the maximum transmission power that UE allows with the total transmitting power that satisfies all channels, j=2 wherein, b is the band numbering; In formula (11), w
b(i) be the power reduction coefficient of the PUSCH among the different band, wherein b is the band numbering, can be different (to its w of PUSCH among some specific band to the PUSCH among the different band
b(i) can dispose or be decided to be 1 approximately, promptly not reduce power), the w that the PUSCH among the same band is corresponding identical
b(i), by high-level signaling or the configuration of PDCCH signaling, perhaps make an appointment for UE and base station; Transmitting power after UE reduces according to power is sent each up channel;
Formula (11);
Wherein,
Work as judgement
The time, can directly send according to the rated output on each carrier wave among a plurality of band;
Need to prove, in the foregoing description, when not having the PUCCH transmission,
When not having the PUSCH transmission of carrying UCI,
Said process is suitable equally; In the said process
Be P
X(i) linear thresholding.
Carry out the under powered example of non-equal proportion among above-mentioned Fig. 8 and Fig. 9 for not carrying out under powered scheme, need not distinguish the priority of different channels, all channels are reduced power simultaneously, repeat no more at this based on channel priority.
Again such as, among Figure 10, carrier wave among the UE polymerization band1 1 and carrier wave 2, and the carrier wave among the band2 3 carries out uplink with carrier wave 4, the concrete behavior of UE is following:
UE at first calculates the SRS transmitting power P on each carrier wave among band1 and the band2 according to formula (7)
SRS, 1, P
SRS, 2, P
SRS, 3And P
SRS, 4
P
SRS, c(i)=min{P
CMAX, c(i), P
SRS_OFFSET, c(m)+10log
10(M
SRS, c)+P
O_PUSCH, c(j)+α
c(j) PL
c+ f
c(i) } formula (7);
UE judges further whether the SRS transmitting power sum on all carrier waves among all band surpasses the maximum transmission power that UE allows:
Promptly when judging
The time, need carry out power and reduce, owing to have only a kind of signal among Figure 10, reduce so do not carry out power here based on channel priority, specifically comprise:
According to formula (12) a plurality of SRS are carried out reducing based on specific power the power reduction of coefficient, be no more than the maximum transmission power that UE allows with the total transmitting power that satisfies all channels, wherein b is the band numbering; In formula (12), w
b(i) be the power reduction coefficient of the SRS among the different band, wherein b is the band numbering, can be different (to its w of SRS among some specific band to the SRS among the different band
b(i) can dispose or be decided to be 1 approximately, promptly not reduce power), the w that the SRS among the same band is corresponding identical
b(i), by high-level signaling or the configuration of PDCCH signaling, perhaps make an appointment for UE and base station; Transmitting power after UE reduces according to power is sent each up channel;
Formula (12).
Work as judgement
The time, can directly send according to the SRS rated output on each carrier wave among a plurality of band;
Need to prove that when the SRS in the present embodiment replaced with PUSCH or PUCCH or PRACH channel, same being suitable for promptly was equivalent in not carrying out under powered scheme based on channel priority; In the said process
Be P
X(i) linear thresholding.
As shown in Figure 6, second kind of ascending power control method that reduces same ratio of the embodiment of the invention comprises the following steps:
Step 601, subscriber equipment are confirmed the transmission power level of the up channel on each carrier wave according to the maximum transmit power value of each carrier wave and the power contorl parameters value of each carrier wave correspondence;
Whether the transmission power level sum that step 602, subscriber equipment are judged each up channel in all frequency bands is greater than the permission maximum transmit power value of subscriber equipment;
Wherein, subscriber equipment can not carry out power according to channel priority and reduce, and also can carry out power according to channel priority and reduce.
Not carrying out power according to channel priority reduces: step 603, subscriber equipment are carried out equal proportion power to total transmission power level of each frequency band and are reduced, and make total transmission power level sum of each frequency band after power reduces be not more than the permission maximum transmit power value of subscriber equipment; To each frequency band; Total transmission power level of this frequency band after subscriber equipment reduces based on power; The transmission power level of each up channel in this frequency band is carried out equal proportion reduces, power is reduced after the transmission power level sum of each up channel in this frequency band be not more than total transmission power level of this frequency band.
Carrying out power according to channel priority reduces: step 603, subscriber equipment are carried out equal proportion power to total transmission power level of each frequency band and are reduced, and make total transmission power level sum of each frequency band after power reduces be not more than the permission maximum transmit power value of subscriber equipment; To each frequency band; Total transmission power level of this frequency band after subscriber equipment reduces based on power; The channel with same channel priority in this frequency band is carried out equal proportion power reduces, power is reduced after the transmission power level sum of each up channel in this frequency band be not more than total transmission power level of this frequency band.
Reduce if carry out power, specifically comprise according to channel priority:
When the corresponding power reduction proportionality coefficient of each band is identical: based on the maximum transmission power of UE permission; At first total transmitting power of the up channel on the carrier wave in each band is carried out equal proportion power and reduce, be no more than the maximum transmission power that UE allows with the total transmitting power sum that satisfies after each band power reduces; Total transmitting power after reducing according to each band power then and the channel priority in each band; The channel equal proportion with same channel priority in the same band reduces power, is no more than the total transmitting power of band after the total transmitting power of this band reduces with the transmitting power sum of the up channel on all carrier waves in this band after satisfying power and reducing;
More excellent, it is identical that the equal proportion power in the above-mentioned steps 603 reduces the power reduction proportionality coefficient that is equivalent to each band correspondence, at this moment, can not dispose the corresponding power of each band and reduce proportionality coefficient, and UE is identical to all band with base station this proportionality coefficient of agreement;
When carrying out the power reduction based on channel priority, the preferential channel transmitting power that reduces with low channel priority;
Channel priority during power division in each band is PUSCH>the do not carry PUSCH of UCI of PUCCH>carrying UCI; The transmitting power of promptly preferential assurance PUCCH does not reduce; Total transmitting power of current band after power reduces is removed in the available launch power beyond the PUCCH transmitting power; The preferential PUSCH power that carries UCI that guarantees does not reduce; Reduce the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE;
Perhaps; If there is the PRACH transmission; Channel priority during power division in each band is PUSCH>the do not carry PUSCH of UCI of PUCCH>PRACH>carrying UCI; The transmitting power of promptly preferential assurance PUCCH does not reduce, and total transmitting power of the current band after power reduces is removed in the available launch power beyond the PUCCH transmitting power, guarantees that preferentially the transmitting power of PRACH does not reduce; Total transmitting power of current band after power reduces is removed in the available launch power beyond PUCCH and the PRACH transmitting power; The preferential PUSCH power that carries UCI that guarantees does not reduce, and reduces the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE; The perhaps PUSCH of PRACH>PUCCH>carrying UCI>the do not carry PUSCH of UCI; The transmitting power of promptly preferential assurance PRACH does not reduce; Total transmitting power of current band after power reduces is removed in the available launch power beyond the PRACH transmitting power; The preferential transmitting power of PUCCH that guarantees does not reduce, and total transmitting power of the current band after power reduces is removed in the available launch power beyond PRACH and the PUCCH transmitting power, and the preferential PUSCH power that carries UCI that guarantees does not reduce; Reduce the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE.
Such as; Among Fig. 8; It (is that each band has disposed an expansion carrier wave E-cell as the carrier wave of transmission PUCCH that carrier wave 1 among the UE polymerization band1 and carrier wave 2, and the carrier wave among the band2 3, carrier wave 4 and carrier wave 5 carry out uplink, each band have all disposed a particular carrier; Be similar to the Pcell among the Rel-10), the concrete behavior of UE is following:
UE calculates the PUCCH transmitting power P among band1 and the band2 at first according to formula (1) respectively according to b=1 and b=2
PUCCH, 1(i) and P
PUCCH, 2(i), wherein b is the band numbering;
Calculate the PUSCH transmitting power P that does not have PUCCH to transmit simultaneously among band1 and the band2 according to formula (2) then at a carrier wave
PUSCH, 2(i), P
PUSCH, 4(i) and P
PUSCH, 5(i);
Calculate the PUSCH transmitting power P that on a carrier wave, has PUCCH simultaneously among the band2 according to formula (3)
PUSCH, 3(i);
UE judges further whether the transmitting power sum of the up channel on all carrier waves among all band surpasses the maximum transmission power that UE allows:
Work as judgement
The time, need carry out power and reduce, suppose that carrying out power based on channel priority reduces, and specifically comprises:
At first calculate the current total transmitting power of each band according to formula (13); Promptly
and
wherein b be band numbering; And according to formula (14) total transmitting power of each band is carried out equal proportion power and reduce, be no more than the maximum transmission power that UE allows with the total transmitting power sum that satisfies a plurality of band after power reduces; In formula (14), w (i) reduces coefficient for power, and total transmitting power of all band is used equal values;
Formula (13);
Formula (14);
Total transmitting power and channel priority after UE reduces based on each band power then; In each band; The preferential transmitting power of PUCCH that guarantees does not reduce; The PUSCH that residue UE power is preferentially satisfied the carrying UCI in this band sends, and the channel with identical low priority in this band (as not carrying the PUSCH of UCI) is reduced same ratio power, that is:
If
wherein b is the band numbering; For
band 1; J=2; For band2; J=3; The transmitting power of promptly carrying the PUSCH of UCI has surpassed the dump power after this band gross power reduces; Then
is the transmitting power of the PUSCH of the carrying UCI after each band internal power reduces, and the transmitting power after UE reduces according to power is sent each up channel, and confirms not send the PUSCH that does not carry UCI (transmitting power that is these PUSCH is reduced to 0) in this band in the current subframe;
If
Wherein b is the band numbering, for band1, and j=2; For band2; J=3, promptly the transmitting power of the PUSCH of the carrying UCI in this band does not surpass the dump power after this band gross power reduces, and need not carry out power to the PUSCH that carries UCI and reduce; Further the PUSCH that does not carry UCI is carried out equal proportion power and reduce, be no more than the total transmitting power after this band gross power reduces with total transmitting power of channel in this band after satisfying power and reducing according to formula (15); In formula (15), w
b(i) power that has the channel of equal priority among the band b reduces coefficient, and is identical to all the PUSCH values in the same band, and its w of specific PUSCH (i) can be 0 (being that power can be reduced to 0); Transmitting power after UE reduces according to power is sent each up channel;
Formula (15);
Wherein,
Work as judgement
The time, can directly send according to the rated output on each carrier wave among a plurality of band.
Need to prove, in the foregoing description, when not having the PUCCH transmission,
When not having the PUSCH transmission of carrying UCI,
Said process is suitable equally; In the said process
Be P
X(i) linear thresholding.
Again such as, among Fig. 9, the carrier wave 1 among the UE polymerization band1, carrier wave 2 and carrier wave 3, and the carrier wave among the band2 4 carries out uplink with carrier wave 5, only has a Pcell transmission PUCCH among a plurality of band, the concrete behavior of UE is following:
UE at first calculates the PUCCH transmitting power P among the band1 according to formula (1) b=1
PUCCH(i), wherein b is the band numbering; Calculate the PUSCH transmitting power P on the corresponding carrier wave among band1 and the band2 according to formula (2)
PUSCH, 2(i), P
PUSCH, 3(i), P
PUSCH, 4(i) and P
PUSCH, 5(i);
UE judges further whether the transmission power level sum of the up channel on all carrier waves among all band surpasses the maximum transmit power value that UE allows:
Work as judgement
The time, need carry out power and reduce, suppose that carrying out power based on channel priority reduces, and specifically comprises:
At first according to formula (13) calculate the current total transmitting power of each band
and
wherein b be the band numbering; And according to formula (14) total transmitting power of each band is carried out equal proportion power and reduce, be no more than the maximum transmission power that UE allows with the total transmitting power sum that satisfies a plurality of band after power reduces; In formula (14), w (i) reduces coefficient for power, and total transmitting power of all band is used equal values;
Total transmitting power and channel priority after UE reduces based on each band power then; In each band; The preferential transmitting power of PUCCH that guarantees does not reduce; The PUSCH that residue UE power is preferentially satisfied the carrying UCI in this band sends, and the channel with identical low priority in this band (as not carrying the PUSCH of UCI) is reduced same ratio power, that is:
For band1; If
wherein b=1 is the band numbering; J=2; The transmitting power of promptly carrying the PUSCH of UCI has surpassed the dump power after this band gross power reduces; Then
is the transmitting power of the PUSCH of the carrying UCI after each band internal power reduces; Transmitting power after UE reduces according to power is sent each up channel, and confirms not send the PUSCH that does not carry UCI (transmitting power that is these PUSCH is reduced to 0) in this band in the current subframe;
For band1, if
Wherein b=1 is the band numbering; J=2; Promptly the transmitting power of the PUSCH of the carrying UCI in this band does not surpass the dump power after this band gross power reduces; Need not carry out power to the PUSCH that carries UCI and reduce, further the PUSCH that does not carry UCI carried out equal proportion power and reduce, be no more than the total transmitting power after this band gross power reduces with total transmitting power of channel in this band after satisfying power and reducing according to formula (15); In formula (15), w
b(i) power that has the channel of equal priority among the band b reduces coefficient, and is identical to all the PUSCH values in the same band, and its w of specific PUSCH (i) can be 0 (being that power can be reduced to 0); Transmitting power after UE reduces according to power is sent each up channel;
For band2, if
Wherein b=2 is the band numbering, then directly sends the PUSCH in this band according to original calculation power; If
Total transmitting power after then reducing based on this band gross power according to formula (16) is carried out equal proportion power to the PUSCH in this band and is reduced, and is no more than the total transmitting power after this band gross power reduces with total transmitting power of channel in this band after satisfying power and reducing; In formula (16), w
b(i) power that has the channel of equal priority among the band b reduces coefficient, and is identical to all the PUSCH values in the same band, and its w of specific PUSCH (i) can be 0 (being that power can be reduced to 0); Transmitting power after UE reduces according to power is sent each up channel;
Formula (16).
Work as judgement
The time, can directly send according to the rated output on each carrier wave among a plurality of band;
Need to prove, in the foregoing description, when not having the PUCCH transmission,
When not having the PUSCH transmission of carrying UCI,
Said process is suitable equally; In the said process
Be P
X(i) linear thresholding.
Carry out the under powered example of equal proportion among above-mentioned Fig. 8 and Fig. 9 for not carrying out under powered scheme, need not distinguish the priority of different channels, all channels are reduced power simultaneously, repeat no more at this based on channel priority.
Again such as, among Figure 10, carrier wave among the UE polymerization band1 1 and carrier wave 2, and the carrier wave among the band2 3 carries out uplink with carrier wave 4, the concrete behavior of UE is following:
UE at first calculates the SRS on each carrier wave among band1 and the band2 (survey and use reference signal) transmitting power P according to formula (7)
SRS, 1, P
SRS, 2, P
SRS, 3And P
SRS, 4
UE judges further whether the SRS transmitting power sum on all carrier waves among all band surpasses the maximum transmission power that UE allows:
Promptly when judging
The time, need carry out power and reduce, owing to have only a kind of signal among Figure 10, reduce so do not carry out power here based on channel priority, specifically comprise:
At first according to formula (17) calculate the current total transmitting power of each band
and
wherein b be the band numbering; And according to formula (14) total transmitting power of each band is carried out equal proportion power and reduce, be no more than the maximum transmission power that UE allows with the total transmitting power sum that satisfies a plurality of band after power reduces; In formula (14), w (i) reduces coefficient for power, and total transmitting power of all band is used equal values;
Formula (17);
Total transmitting power after UE reduces based on each band power then judges whether the total transmitting power of SRS in each band surpasses the total transmitting power after this band gross power reduces, if that is:
Wherein b is the band numbering, then directly sends the SRS in this band according to original calculation power; If
Total transmitting power after then reducing based on this band gross power according to formula (18) is carried out equal proportion power to the SRS in this band and is reduced, and is no more than the total transmitting power after this band gross power reduces with total transmitting power of channel in this band after satisfying power and reducing; In formula (18), w
b(i) power of SRS reduces coefficient among the band b, and is identical to all the SRS values in the same band; Transmitting power after UE reduces according to power is sent each SRS;
Formula (18).
Work as judgement
The time, can directly send according to the SRS rated output on each carrier wave among a plurality of band;
Need to prove that when the SRS in the present embodiment replaced with PUSCH or PUCCH or PRACH channel, same being suitable for promptly was equivalent in not carrying out under powered scheme based on channel priority; In the said process
Be P
X(i) linear thresholding.
As shown in Figure 7, second kind of ascending power control method that reduces different proportion of the embodiment of the invention comprises the following steps:
Step 701, subscriber equipment are confirmed the transmission power level of the up channel on each carrier wave according to the maximum transmit power value of each carrier wave and the power contorl parameters value of each carrier wave correspondence;
Whether the transmission power level sum that step 702, subscriber equipment are judged each up channel in all frequency bands is greater than the permission maximum transmit power value of subscriber equipment;
Wherein, subscriber equipment can not carry out power according to channel priority and reduce, and also can carry out power according to channel priority and reduce.
Not carrying out power according to channel priority reduces: step 703, subscriber equipment reduce proportionality coefficient to total transmission power level of each frequency band according to the corresponding power of this frequency band and carry out power and reduce, and make total transmission power level sum of each frequency band after power reduces be not more than the permission maximum transmit power value of subscriber equipment; To each frequency band; Total transmission power level of this frequency band after subscriber equipment reduces based on power; Whether the transmission power level sum of judging each up channel in this frequency band is greater than total transmission power level of this frequency band; If greater than, then each up channel in this frequency band is carried out equal proportion power and reduces, power is reduced after the transmission power level sum of each up channel in this frequency band be not more than total transmission power level of this frequency band; If be not more than, then do not change the transmission power level of each up channel in this frequency band.
Carrying out power according to channel priority reduces: step 703, subscriber equipment reduce proportionality coefficient to total transmission power level of each frequency band according to the corresponding power of this frequency band and carry out power and reduce, and make total transmission power level sum of each frequency band after power reduces be not more than the permission maximum transmit power value of subscriber equipment; To each frequency band; Total transmission power level of this frequency band after subscriber equipment reduces based on power; Whether the transmission power level sum of judging each up channel in this frequency band is greater than total transmission power level of this frequency band; If greater than, then the up channel with same channel priority in this frequency band is carried out equal proportion power and reduces, power is reduced after the transmission power level sum of each up channel in this frequency band be not more than total transmission power level of this frequency band; If be not more than, then do not change the transmission power level of each up channel in this frequency band.
Reduce if carry out power, specifically comprise according to channel priority:
The power corresponding as each band reduces proportionality coefficient not simultaneously: based on the maximum transmission power of UE permission; Current total transmitting power of each band is carried out power according to the corresponding power reduction proportionality coefficient of band to be reduced; Total transmitting power sum to satisfy after each band power reduces is no more than the maximum transmission power that UE allows; And according to total transmitting power after each band power reduction and the channel priority in each band; The channel equal proportion that has same channel priority in the same band is reduced power, be no more than the total transmitting power of band after the total transmitting power of this band reduces with the transmitting power sum of the up channel on all carrier waves in this band after satisfying power and reducing;
More excellent; Reduce proportionality coefficient based on the corresponding power of frequency band in the above-mentioned steps 703 and carry out under powered method; When the corresponding power reduction proportionality coefficient of each band is identical; For equal proportion power reduces, can not dispose the corresponding power of each band and reduce proportionality coefficient, UE is identical to all band with base station this proportionality coefficient of agreement; The power corresponding as each band reduces proportionality coefficient not simultaneously, and for non-equal proportion power reduces, it is to make an appointment in UE and base station that power reduces coefficient, or the base station disposes to UE's through high-level signaling or PDCCH signaling.
When carrying out the power reduction based on channel priority, the preferential channel transmitting power that reduces with low channel priority;
Channel priority during power division in each band is PUSCH>the do not carry PUSCH of UCI of PUCCH>carrying UCI; The transmitting power of promptly preferential assurance PUCCH does not reduce; Total transmitting power of current band after power reduces is removed in the available launch power beyond the PUCCH transmitting power; The preferential PUSCH power that carries UCI that guarantees does not reduce; Reduce the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE;
Perhaps; If there is the PRACH transmission; Channel priority during power division in each band is PUSCH>the do not carry PUSCH of UCI of PUCCH>PRACH>carrying UCI; The transmitting power of promptly preferential assurance PUCCH does not reduce, and total transmitting power of the current band after power reduces is removed in the available launch power beyond the PUCCH transmitting power, guarantees that preferentially the transmitting power of PRACH does not reduce; Total transmitting power of current band after power reduces is removed in the available launch power beyond PUCCH and the PRACH transmitting power; The preferential PUSCH power that carries UCI that guarantees does not reduce, and reduces the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE; The perhaps PUSCH of PRACH>PUCCH>carrying UCI>the do not carry PUSCH of UCI; The transmitting power of promptly preferential assurance PRACH does not reduce; Total transmitting power of current band after power reduces is removed in the available launch power beyond the PRACH transmitting power; The preferential transmitting power of PUCCH that guarantees does not reduce, and total transmitting power of the current band after power reduces is removed in the available launch power beyond PRACH and the PUCCH transmitting power, and the preferential PUSCH power that carries UCI that guarantees does not reduce; Reduce the power that all the other do not carry the PUSCH of UCI, till total transmitting power sum of all channels of UE is no more than the permission maximum transmission power of UE.
Such as; Among Fig. 8; It (is that each band has disposed an expansion carrier wave E-cell as the carrier wave of transmission PUCCH that carrier wave 1 among the UE polymerization band1 and carrier wave 2, and the carrier wave among the band2 3, carrier wave 4 and carrier wave 5 carry out uplink, each band have all disposed a particular carrier; Be similar to the Pcell among the Rel-10), the concrete behavior of UE is following:
UE calculates the PUCCH transmitting power P among band1 and the band2 at first according to formula (1) respectively according to b=1 and b=2
PUCCH, 1(i) and P
PUCCH, 2(i), wherein b is the band numbering;
Calculate the PUSCH transmitting power P that does not have PUCCH to transmit simultaneously among band1 and the band2 according to formula (2) then at a carrier wave
PUSCH, 2(i), P
PUSCH, 4(i) and P
PUSCH, 5(i);
Calculate the PUSCH transmitting power P that on a carrier wave, has PUCCH simultaneously among the band2 according to formula (3)
PUSCH, 3(i);
UE judges further whether the transmitting power sum of the up channel on all carrier waves among all band surpasses the maximum transmission power that UE allows:
Work as judgement
The time, need carry out power and reduce, suppose that carrying out power based on channel priority reduces, and specifically comprises:
At first calculate the current total transmitting power of each band, promptly according to formula (13)
With
Wherein b is the band numbering, and according to formula (19) total transmitting power of each band is carried out reducing based on certain power the power reduction of coefficient, is no more than the maximum transmission power that UE allows with the total transmitting power sum that satisfies a plurality of band after power reduces; In formula (19), w
b(i) be that the specific power of different band reduces coefficient,, perhaps make an appointment for UE and base station by high-level signaling or the configuration of PDCCH signaling;
Formula (19);
Total transmitting power and channel priority after UE reduces based on each band power then; In each band; The preferential transmitting power of PUCCH that guarantees does not reduce; The PUSCH that residue UE power is preferentially satisfied the carrying UCI in this band sends, and the channel with identical low priority in this band (as not carrying the PUSCH of UCI) is reduced same ratio power, that is:
If
wherein b is the band numbering; For
band 1; J=2; For band2; J=3; The transmitting power of promptly carrying the PUSCH of UCI has surpassed the dump power after this band gross power reduces; Then
is the transmitting power of the PUSCH of the carrying UCI after each band internal power reduces, and the transmitting power after UE reduces according to power is sent each up channel, and confirms not send the PUSCH that does not carry UCI (transmitting power that is these PUSCH is reduced to 0) in this band in the current subframe;
If
Wherein b is the band numbering, for band1, and j=2; For band2; J=3, promptly the transmitting power of the PUSCH of the carrying UCI in this band does not surpass the dump power after this band gross power reduces, and need not carry out power to the PUSCH that carries UCI and reduce; Further the PUSCH that does not carry UCI is carried out equal proportion power and reduce, be no more than the total transmitting power after this band gross power reduces with total transmitting power of channel in this band after satisfying power and reducing according to formula (15); In formula (15), w
b(i) power that has the channel of equal priority among the band b reduces coefficient, and is identical to all the PUSCH values in the same band, and its w of specific PUSCH (i) can be 0 (being that power can be reduced to 0); Transmitting power after UE reduces according to power is sent each up channel;
Work as judgement
The time, can directly send according to the rated output on each carrier wave among a plurality of band.
Need to prove, in the foregoing description, when not having the PUCCH transmission,
When not having the PUSCH transmission of carrying UCI,
Said process is suitable equally; In the said process
Be P
X(i) linear thresholding.
Again such as, among Fig. 9, the carrier wave 1 among the UE polymerization band1, carrier wave 2 and carrier wave 3, and the carrier wave among the band2 4 carries out uplink with carrier wave 5, only has a Pcell transmission PUCCH among a plurality of band, the concrete behavior of UE is following:
UE at first calculates the PUCCH transmitting power P among the band1 according to formula (1) b=1
PUCCH(i), wherein b is the band numbering; Calculate the PUSCH transmitting power P on the corresponding carrier wave among band1 and the band2 according to formula (2)
PUSCH, 2(i), P
PUSCH, 3(i), P
PUSCH, 4(i) and P
PUSCH, 5(i);
UE judges further whether the transmission power level sum of the up channel on all carrier waves among all band surpasses the maximum transmit power value that UE allows:
Work as judgement
The time, need carry out power and reduce, suppose that carrying out power based on channel priority reduces, and specifically comprises: at first calculate the current total transmitting power of each band according to formula (13)
With
Wherein b is the band numbering, and according to formula (19) total transmitting power of each band is carried out equal proportion power and reduce, and is no more than the maximum transmission power that UE allows with the total transmitting power sum that satisfies a plurality of band after power reduces; In formula (19), w
b(i) be that the specific power of different band reduces coefficient,, perhaps make an appointment for UE and base station by high-level signaling or the configuration of PDCCH signaling;
Total transmitting power and channel priority after UE reduces based on each band power then; In each band; The preferential transmitting power of PUCCH that guarantees does not reduce; The PUSCH that residue UE power is preferentially satisfied the carrying UCI in this band sends, and the channel with identical low priority in this band (as not carrying the PUSCH of UCI) is reduced same ratio power, that is:
For band1; If
wherein b=1 is the band numbering; J=2; The transmitting power of promptly carrying the PUSCH of UCI has surpassed the dump power after this band gross power reduces; Then
is the transmitting power of the PUSCH of the carrying UCI after each band internal power reduces; Transmitting power after UE reduces according to power is sent each up channel, and confirms not send the PUSCH that does not carry UCI (transmitting power that is these PUSCH is reduced to 0) in this band in the current subframe;
For band1, if
Wherein b=1 is the band numbering; J=2; Promptly the transmitting power of the PUSCH of the carrying UCI in this band does not surpass the dump power after this band gross power reduces; Need not carry out power to the PUSCH that carries UCI and reduce, further the PUSCH that does not carry UCI carried out equal proportion power and reduce, be no more than the total transmitting power after this band gross power reduces with total transmitting power of channel in this band after satisfying power and reducing according to formula (15); In formula (15), w
b(i) power that has the channel of equal priority among the band b reduces coefficient, and is identical to all the PUSCH values in the same band, and its w of specific PUSCH (i) can be 0 (being that power can be reduced to 0); Transmitting power after UE reduces according to power is sent each up channel;
For band2, if
Wherein b=2 is the band numbering, then directly sends the PUSCH in this band according to original calculation power; If
Total transmitting power after then reducing based on this band gross power according to formula (16) is carried out equal proportion power to the PUSCH in this band and is reduced, and is no more than the total transmitting power after this band gross power reduces with total transmitting power of channel in this band after satisfying power and reducing; In formula (16), w
b(i) power that has the channel of equal priority among the band b reduces coefficient, and is identical to all the PUSCH values in the same band, and its w of specific PUSCH (i) can be 0 (being that power can be reduced to 0); Transmitting power after UE reduces according to power is sent each up channel.
Work as judgement
The time, can directly send according to the rated output on each carrier wave among a plurality of band;
Need to prove, in the foregoing description, when not having the PUCCH transmission,
When not having the PUSCH transmission of carrying UCI,
Said process is suitable equally; In the said process
Be P
X(i) linear thresholding.
Carry out the under powered example of non-equal proportion among above-mentioned Fig. 8 and Fig. 9 for not carrying out under powered scheme, need not distinguish the priority of different channels, all channels are reduced power simultaneously, repeat no more at this based on channel priority.
Again such as, among Figure 10, carrier wave among the UE polymerization band1 1 and carrier wave 2, and the carrier wave among the band2 3 carries out uplink with carrier wave 4, the concrete behavior of UE is following:
UE at first calculates the SRS on each carrier wave among band1 and the band2 (survey and use reference signal) transmitting power P according to formula (7)
SRS, 1, P
SRS, 2, P
SRS, 3And P
SRS, 4
UE judges further whether the SRS transmitting power sum on all carrier waves among all band surpasses the maximum transmission power that UE allows:
Promptly when judging
The time, need carry out power and reduce, owing to have only a kind of signal among Figure 10, reduce so do not carry out power here based on channel priority, specifically comprise:
At first calculate the current total transmitting power of each band according to formula (17)
With
Wherein b is the band numbering, and according to formula (19) total transmitting power of each band is carried out equal proportion power and reduce, and is no more than the maximum transmission power that UE allows with the total transmitting power sum that satisfies a plurality of band after power reduces; In formula (19), w
b(i) be that the specific power of different band reduces coefficient,, perhaps make an appointment for UE and base station by high-level signaling or the configuration of PDCCH signaling.
Total transmitting power after UE reduces based on each band power then judges whether the total transmitting power of SRS in each band surpasses the total transmitting power after this band gross power reduces, that is:
If
Wherein b is the band numbering, then directly sends the SRS in this band according to original calculation power; If
Total transmitting power after then reducing based on this band gross power according to formula (18) is carried out equal proportion power to the SRS in this band and is reduced, and is no more than the total transmitting power after this band gross power reduces with total transmitting power of channel in this band after satisfying power and reducing; In formula (18), w
b(i) power of SRS reduces coefficient among the band b, and is identical to all the SRS values in the same band; Transmitting power after UE reduces according to power is sent each SRS.
Work as judgement
The time, can directly send according to the SRS rated output on each carrier wave among a plurality of band;
Need to prove that when the SRS in the present embodiment replaced with PUSCH or PUCCH or PRACH channel, same being suitable for promptly was equivalent in not carrying out under powered scheme based on channel priority; In the said process
Be P
X(i) linear thresholding.
Formula in the reusable Rel-10 of the rating formula system on above-mentioned each carrier wave.
The power contorl parameters separate configurations that each carrier wave is corresponding, the power control command of the carrier wave among the different band can independently send, also can unify to send (striding the band scheduling) by a band.
Need to prove; Maximum transmission power, band maximum transmission power and carrier wave maximum transmission power that UE among said method and the embodiment allows are to have considered the power behind the back-off; Promptly considered back-off parameter MPR (Maximum Power Reduction; The maximum power rollback), A-MPR (Additional-Maximum Power Reduction; Extra maximum power rollback), the power of P-MPR (Power Management Maximum Power Reduction, power management maximum power rollback) and Δ Tc (Allowed operating band edge transmission power relaxation, the sideband through-put power permission amount of permission); Above-mentioned back-off parameter can the shared set of parameter of all band, perhaps also can each band definition one cover independent parameter.
Shown in figure 11, the method for embodiment of the invention transmission of configuration information comprises the following steps:
Step 1101, network side confirm that the corresponding power of each frequency band reduces the proportionality coefficient value;
The corresponding power of each frequency band that step 1102, network side are confirmed to user device configuration through high-level signaling or PDCCH signaling reduces the proportionality coefficient value.
Wherein, high-level signaling includes but not limited at least a in the following signaling:
RRC signaling and MAC signaling.
In force, the maximum transmission power that network side allows through high-level signaling or UE of the pre-configured UE of giving of PDCCH signaling, carrier wave maximum transmission power of each carrier wave, specific power of each band reduces proportionality coefficient, and this coefficient is used for power to be reduced.
Based on same inventive concept; A kind of subscriber equipment of uplink power control also is provided in the embodiment of the invention; Because the principle that this subscriber equipment is dealt with problems is similar with the method for embodiment of the invention uplink power control; Therefore the enforcement of this subscriber equipment can repeat part and repeat no more referring to the enforcement of method.
Shown in figure 12, the subscriber equipment of embodiment of the invention uplink power control comprises: power determination module 1200, judge module 1201 and processing module 1202.
Power determination module 1200 is used for the power contorl parameters value corresponding with each carrier wave according to the maximum transmit power value of each carrier wave, confirms the transmission power level of the up channel on each carrier wave;
Judge module 1201, whether the transmission power level sum of each up channel that is used for judging all frequency bands is greater than the permission maximum transmit power value of subscriber equipment;
Processing module 1202; Be used for when the transmission power level sum of each up channel of judging all frequency bands during greater than the permission maximum transmit power value of subscriber equipment; Reduce the proportionality coefficient value according to the permission maximum transmit power value of subscriber equipment and the corresponding power of each frequency band and carry out power and reduce, make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Preferably; When the transmission power level sum of each up channel in judging all frequency bands was not more than the permission maximum transmit power value of subscriber equipment, processing module 1202 was sent up channel according to the transmission power level of the up channel of each carrier wave in each frequency band of confirming.
Preferably; Permission maximum transmit power value and the corresponding power of each frequency band according to subscriber equipment reduce the proportionality coefficient value; Processing module 1202 according to channel priority from low to high or order from high to low successively up channel is carried out power and reduces, make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Preferably, the transmission power level of each up channel in 1202 pairs of all frequency bands of processing module carries out equal proportion and reduces, and makes the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Preferably; The channel with same channel priority in 1202 pairs of all frequency bands of processing module carries out equal proportion power and reduces, and makes the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Preferably; Each up channel that 1202 pairs of processing modules are in different frequency bands carries out the power reduction according to the corresponding power reduction proportionality coefficient of this up channel place frequency band; Each up channel that is in identical frequency band is carried out equal proportion power reduce, make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Preferably; The up channel with equal priority that 1202 pairs of processing modules are in different frequency bands carries out the power reduction according to the corresponding power reduction proportionality coefficient of this up channel place frequency band; The up channel with same channel priority that is in identical frequency band is carried out equal proportion power reduce, make the transmission power level sum of each up channel in all frequency bands after power reduces be not more than the permission maximum transmit power value of subscriber equipment.
Preferably, total transmission power level of 1202 pairs of each frequency bands of processing module carries out equal proportion power and reduces, and makes total transmission power level sum of each frequency band after power reduces be not more than the permission maximum transmit power value of subscriber equipment; To each frequency band; Total transmission power level based on this frequency band after the power reduction; The transmission power level of each up channel in this frequency band is carried out equal proportion reduces, power is reduced after the transmission power level sum of each up channel in this frequency band be not more than total transmission power level of this frequency band.
Preferably, total transmission power level of 1202 pairs of each frequency bands of processing module carries out equal proportion power and reduces, and makes total transmission power level sum of each frequency band after power reduces be not more than the permission maximum transmit power value of subscriber equipment; To each frequency band; Total transmission power level based on this frequency band after the power reduction; The channel with same channel priority in this frequency band is carried out equal proportion power reduces, power is reduced after the transmission power level sum of each up channel in this frequency band be not more than total transmission power level of this frequency band.
Preferably; Total transmission power level of 1202 pairs of each frequency bands of processing module reduces proportionality coefficient according to the corresponding power of this frequency band and carries out power and reduce, and makes total transmission power level sum of each frequency band after power reduces be not more than the permission maximum transmit power value of subscriber equipment; To each frequency band; Whether total transmission power level of this frequency band after reducing based on power, the transmission power level sum of judging each up channel in this frequency band greater than total transmission power level of this frequency band, if greater than; Then each up channel in this frequency band being carried out equal proportion power reduces; The transmission power level sum of each up channel after power is reduced in this frequency band is not more than total transmission power level of this frequency band, if be not more than, does not then change the transmission power level of each up channel in this frequency band.
Preferably; Total transmission power level of 1202 pairs of each frequency bands of processing module reduces proportionality coefficient according to the corresponding power of this frequency band and carries out power and reduce, and makes total transmission power level sum of each frequency band after power reduces be not more than the permission maximum transmit power value of subscriber equipment; To each frequency band; Total transmission power level based on this frequency band after the power reduction; Whether the transmission power level sum of judging each up channel in this frequency band is greater than total transmission power level of this frequency band; If greater than, then the up channel with same channel priority in this frequency band is carried out equal proportion power and reduces, power is reduced after the transmission power level sum of each up channel in this frequency band be not more than total transmission power level of this frequency band; If be not more than, then do not change the transmission power level of each up channel in this frequency band.
Preferably, the priority of up channel is:
There is not PRACH when transmission, the priority of the PUSCH of the priority of PUCCH>carrying UCI>the do not carry priority of the PUSCH of UCI;
When the PRACH transmission is arranged; The priority of the PUSCH of the priority of priority>PRACH of PUCCH>carrying UCI>do not carry the priority of the PUSCH of UCI, or the priority of the PUSCH of the priority of priority>PUCCH of PRACH>carrying UCI>the do not carry priority of the PUSCH of UCI.
Preferably, ascending control channel comprises one or more in the following channel:
SRS, PUSCH, PUCCH and PRACH.
Preferably, it is that subscriber equipment and network side are made an appointment that the power that each frequency band is corresponding reduces the proportionality coefficient value, or network side disposes to subscriber equipment through high-level signaling or PDCCH signaling;
Wherein, the power that each frequency band is corresponding reduces the proportionality coefficient value and is not more than 1 and be not less than 0.
Preferably, high-level signaling includes but not limited at least a in the following signaling:
RRC signaling and MAC signaling.
Preferably, it is identical or different that the power that different frequency bands is corresponding reduces the proportionality coefficient value;
When the power of different frequency bands reduces the proportionality coefficient value when identical, power reduces proportionality coefficient and does not dispose or do not arrange.
Based on same inventive concept; A kind of network equipment of transmission of configuration information also is provided in the embodiment of the invention; Because the principle that this network equipment is dealt with problems is similar with the method for embodiment of the invention transmission of configuration information; Therefore the enforcement of this subscriber equipment can repeat part and repeat no more referring to the enforcement of method.
Shown in figure 13, the network equipment of embodiment of the invention transmission of configuration information comprises: coefficient value determination module 1300 and configuration module 1301.
Coefficient value determination module 1300 is used for confirming that the corresponding power of each frequency band reduces the proportionality coefficient value;
Configuration module 1301, the corresponding power of each frequency band that is used for confirming to user device configuration through high-level signaling or PDCCH signaling reduces the proportionality coefficient value.
Preferable, high-level signaling includes but not limited at least a in the following signaling:
RRC signaling and MAC signaling.
Wherein, the network equipment of the embodiment of the invention can be base station (such as macro base station, a Home eNodeB etc.), also can be RN (relaying) equipment, can also be other network equipment
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.