CN100384099C - Power controlling method for uplink high-speed special physical control channel - Google Patents
Power controlling method for uplink high-speed special physical control channel Download PDFInfo
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- CN100384099C CN100384099C CNB200410098860XA CN200410098860A CN100384099C CN 100384099 C CN100384099 C CN 100384099C CN B200410098860X A CNB200410098860X A CN B200410098860XA CN 200410098860 A CN200410098860 A CN 200410098860A CN 100384099 C CN100384099 C CN 100384099C
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Abstract
The present invention discloses a power control method of an uplink high-speed special physical control channel, which comprises the following steps: a base station obtains the demodulation information of the uplink high-speed special physical control channel; the demodulation performance of the uplink high-speed special physical control channel is determined according to the demodulation information of the uplink high-speed special physical control channel; the adjusted values of power offset parameters of the uplink high-speed special physical control channel are determined according to the demodulation performance; the adjustment of the transmission power of the uplink high-speed special physical control channel is carried out according to the adjusted values of the power offset parameters. The present invention determines the relative demodulation performance of the uplink high-speed special physical control channel according to the demodulation information of the uplink high-speed special physical control channel, and further determines the relative highness or lowness of the arrangement of the power offset parameters of the uplink high-speed special physical control channel. Then, the transmission power of the uplink high-speed special physical control channel is dynamically adjusted by that one power offset parameter is added or subtracted on the basis of the existing power offset parameters.
Description
Technical field
The present invention relates to the control method in the wireless communication system, relate in particular to a kind of Poewr control method of uplink high-speed special physical control channel.
Background technology
In order to solve WCDMA (Wideband Code-Division Multiple Access better, the Wideband Code Division Multiple Access (WCDMA) access) contradiction of system's covering and capacity is eliminated and is disturbed, the elevator system capacity, satisfy the customer service demand, in the follow-up developments of WCDMA, produce many new technologies.HSDPA (High SpeedDownlink Packet Access, the high-speed downstream bag inserts) technology is exactly one of them.The HSDPA technology provides data service based on DSCH Downlink Shared Channel, and theoretical flank speed surpasses 10Mb/s, has solved CDMA (Code-Division Multiple Access, code division multiple access inserts) the limited problem of system descending capacity.The main feature of HSDPA system comprises: the short frame that adopts 2ms, adopt HARQ (HybridAutomatic Repeat Request in physical layer, the mixed self-adapting repeat requests) and AMC (Adaptive Modulationand Coding, Adaptive Modulation and Coding) technology, introduce 16QAM (Quadrature AmplitudeModulation, quadrature amplitude modulation) high order modulation improves the availability of frequency spectrum, realize the shared channel scheduling of each UE (User Equipment, subscriber equipment) by sign indicating number branch and time-division.The HARQ technology adopts SAW (Stop and Wait, stop and waiting for) agreement, require NodeB (WCDMA base station) after UE sends data, need obtain UE feeding back ACK (ACKnowledge, confirmation) or NACK (NotACKnowledge, confirmation not), be used for reply data whether correctly to receive, so that decision is data retransmission or transmission new data.The CQI that AMC specification requirement UE feeding back downlink is measured (ChannelQuality Indicator, channel quality indication) is so that the code rate and the transformat of the descending HSDPA data of decision NodeB.
The WCDMA system utilizes down physical channel HS-SCCH (the High Speed SharedControl Channel of HSDPA, High-Speed Shared Control Channel), HS-PDSCH (High Speed PhysicalDownlink Shared Channel, high-speed physical downlink shared channel (HS-PDSCH)) and follow downlink dedicated channels, and uplink physical channel HS-DPCCH (high speed-dedicated physical control channel, High-Speed Dedicated Physical Control Channel) and follow up DPCH (Dedicated physical channel, dedicated channel) to realize transfer of data between UTRAN and the UE.Frame receives the information A CK or the NACK of correctness among the up HS-DPCCH carrying feeding back downlink HS-PDSCH, perhaps channel quality indication (CQI) information CQI, follow special uplink channel DPCH to remove RRC (the Radio ResourceControl of carrying HSDPA, Radio Resource control) connect outside the high-level signaling of setting up, safeguarding and reshuffle, can also be used to bearer service.The downlink signaling of HS-SCCH channel bearing demodulation HS-PDSCH, the Frame of HS-PDSCH channel bearing HS-DSCH transmission channel.UE finishes among the HS-PDSCH after the Frame demodulation, feeds back to NodeB whether the information A CK or the NACK of correct receiving data frames, and according to feedback cycle and repetition period of CQI, the feedback channel quality condition information is given NodeB.
Because the quality of HS-DPCCH power control directly influences HSDPA user's data transmission rate and power system capacity, so need control the transmitting power of up channel HS-DPCCH.Technology is to utilize the pilot power of following special uplink channel to setover to realize at present.Supposing to follow special uplink channel pilot time slot power is Power
DCH_Pilot, the HS-DPCCH power bias parameter of high-rise configuration had Δ when Radio Link was set up or reshuffled
ACK, Δ
NACKAnd Δ
CQIThe transmitting power P of HS-DPCCH loading ACK or NACK then
ACKOr P
NACKThe perhaps transmitting power P of CQI
CQIBe respectively: P
ACK=Power
DCH_Pilot+ Δ
ACKP
NACK=Power
DCH_Pilot+ Δ
NACKP
CQI=Power
DCH_Pilot+ Δ
CQINodeB carries out the demodulation of HS-DPCCH beared information according to up HS-DPCCH timing relationship, utilizes CQI to carry out data dispatch and transformat selection, utilizes ACK or NACK to determine New Development Frame or retransmitting data frame.
The uplink transmission power of the ACK of HS-DPCCH or NACK or CQI can pass through RNC (Radio net controller, radio network controller) the corresponding power offset parameter of configuration is adjusted, analyze the demodulation performance of HS-DPCCH channel in base station node B, whether the transmitting power of judging HS-DPCCH is bigger than normal or less than normal, determine ACK or NACK or CQI power bias parameter, and inform user equipment (UE) by radio network controller (RNC), realize the adjustment of HS-DPCCH transmitting power by UE.If the ACK of HS-DPCCH or NACK or CQI transmitting power are bigger than normal, then deduct a power bias parameter on the dedicated channel pilot time slot power following, reduce transmitting power; If the ACK of HS-DPCCH or NACK or CQI transmitting power are less than normal, then add a power bias parameter on the dedicated channel pilot time slot power following, strengthen transmitting power.But this power bias parameter is set in advance by radio network controller, and this constant power offset parameter that sets in advance can't satisfy the HS-DPCCH uplink transmission power demand under the different situations.Such as: under different transmission environments, HS-DPCCH may be inconsistent based on the power bias parameter request of following special uplink channel.For example, when HSDPA user enters the soft handover area of following dedicated channel, owing to follow dedicated channel to obtain gain at soft handover area, cause the dedicated channel pilot power of following of HSDPA Serving cell to reduce, make HS-DPCCH on the low side based on the offset parameter of following up dedicated pilot transmitting power.Therefore, prior art can not dynamically be adjusted the power bias parameter Δ of HS-DPCCH according to the needs of concrete transmission environment
ACK, Δ
NACKAnd Δ
CQI
Summary of the invention
The problem that the Poewr control method of uplink high-speed special physical control channel of the present invention will solve provides a kind of Poewr control method of uplink high-speed special physical control channel, to solve the defective that can not dynamically control uplink high-speed special physical control channel power in the prior art.
In order to address the above problem, the invention discloses a kind of Poewr control method of uplink high-speed special physical control channel, this method may further comprise the steps:
A, base station obtain the demodulating information of uplink high-speed special physical control channel;
B, according to the demodulating information of described uplink high-speed special physical control channel, determine the demodulation performance of uplink high-speed special physical control channel;
C, determine uplink high-speed special physical control channel power bias parameter adjustment value according to described demodulation performance;
D, carry out the adjustment of uplink high-speed special physical control channel transmitting power according to described power bias parameter adjustment value.
The described demodulating information of steps A comprises confirmation ACK or non-confirmation NACK and channel quality indication (CQI) information CQI.
Described confirmation ACK or non-confirmation NACK send to the base station receive the Frame of a high-speed physical downlink shared channel (HS-PDSCH) HS-PDSCH at subscriber equipment after.
The demodulation performance of described uplink high-speed special physical control channel is the affirmation information A CK that receives by statistics or the quantity of non-confirmation NACK, and the quantity of discontinuous transmission information D TX is determined.
When adding up the quantity of described discontinuous transmission information D TX,, deduct because the discontinuous transmission information D TX number that the compression time slot produces with the discontinuous transmission information D TX number that receives; And deduct because the unreasonable discontinuous transmission information D TX number that causes of power setting of downlink high-speed shared control channel HS-SCCH.
It is described because the unreasonable DTX number that causes of power setting of downlink high-speed shared control channel HS-SCCH is to determine according to the demodulation performance of channel quality indication (CQI) information CQI.
The demodulation performance of the described uplink high-speed special physical control channel of step B is determined by channel quality indication (CQI) information CQI statistics error code values.
The described definite uplink high-speed special physical control channel power bias parameter adjustment value of step C, be the alarm threshold by CQI in more described demodulation performance and the demodulating information or cross good thresholding, and/or the wrong receiving alarm thresholding of confirmation ACK or non-confirmation NACK or excessively good thresholding realization in more described demodulation performance and the demodulating information.
In the described demodulation performance demodulation performance of confirmation ACK or non-confirmation NACK greater than, equal the wrong receiving alarm thresholding of confirmation ACK or non-confirmation NACK, and in the demodulation performance CQI statistics error code greater than, equal the alarm threshold of described CQI, then the power bias parameter of uplink high-speed special physical control channel confirmation ACK or non-confirmation NACK is provided with on the low sidely, and described power bias parameter adds a power bias parameter adjustment value.
In the described demodulation performance demodulation performance of confirmation ACK or non-confirmation NACK less than, equal the good thresholding of mistake of confirmation ACK or non-confirmation NACK, then the power bias parameter of uplink high-speed special physical control channel confirmation ACK or non-confirmation NACK is provided with higherly, and described power bias parameter subtracts a power bias parameter adjustment value.
In the described demodulation performance demodulation performance of CQI demodulation statistics error code greater than, equal the alarm threshold of CQI, then the power bias parameter of uplink high-speed special physical control channel CQI is provided with on the low sidely, and described power bias parameter adds a power bias parameter adjustment value.
In the described demodulation performance demodulation performance of CQI demodulation statistics error code less than, equal the good thresholding of mistake of CQI, then the power bias parameter of uplink high-speed special physical control channel CQI is provided with higherly, described power bias parameter subtracts a power bias parameter adjustment value.
It is big that the power bias parameter is provided with the power bias parameter adjustment value step pitch that specific power offset parameter when on the low side is provided with when higher.
Step D is described to carry out the adjustment of High-Speed Dedicated Physical Control Channel transmitting power according to power bias parameter adjustment value and comprises:
The base station sends to radio network controller upgrades the power bias parameter request;
Described radio network controller is with adjusted power bias parameter configuration subscriber equipment;
Described subscriber equipment is according to the transmitting power of described adjusted power bias parameter adjustment uplink high-speed special physical control channel.
Compared with prior art the present invention has the following advantages:
The present invention determines the correlation demodulation performance of uplink high-speed special physical control channel according to the demodulating information of uplink high-speed special physical control channel, and then the power bias parameter of definite uplink high-speed special physical control channel is provided with higher or on the low side, then, by on existing power bias parameter basis, adding one or subtract a power bias parameter adjustment value, dynamically change the power bias parameter, and then dynamically adjust the transmitting power of uplink high-speed special physical control channel.
Description of drawings
Fig. 1 is the flow chart of the Poewr control method basic principle of uplink high-speed special physical control channel of the present invention;
Fig. 2 is that high speed downstream packets of the present invention inserts the user transmits and receives Frame between base station node B and subscriber equipment timing relation figure;
Fig. 3 is the first embodiment flow chart of uplink high-speed special physical control channel of the present invention;
Fig. 4 is the second embodiment flow chart of uplink high-speed special physical control channel of the present invention.
Embodiment
The present invention is by the up HS-DPCCH of base station node B demodulation (high speed-dedicated physicalcontrol channel, High-Speed Dedicated Physical Control Channel), obtain the ACK or the information such as NACK and CQI of up HS-DPCCH carrying, the performance of up HS-DPCCH channel is estimated the performance of said channel is actual is exactly whether up HS-DPCCH channel transmitting power is reasonable according to these information here; Described up HS-DPCCH channel emission power mainly is subjected to the power bias parameter influence, if increase the power bias parameter, then up HS-DPCCH channel emission power can raise; If reduce the power bias parameter, then up HS-DPCCH channel emission power can reduce.Therefore, whether reasonable according to the transmitting power of up HS-DPCCH, change up HS-DPCCH power offset of channel parameter adjustment value, increasing or to reduce the power bias parameter, and then dynamically adjust up HS-DPCCH channel transmitting power.
Below in conjunction with Fig. 1 principle of the present invention is described.
At first, according to step s101, up HS-DPCCH channel is carried out demodulation at NodeB.Obtain this channel institute loaded information, comprise and confirm or do not confirm (ACK or NACK) and channel quality indication (CQI).This just needs NodeB according to the pilot time slot in each time slot of DPCH (Dedicated physical control channel, special uplink channel) HS-DPCCH to be carried out Multipath searching and channel estimating.Because when transmitting through behind the spatial transmission, can arrive receiving terminal through the different path of too much bar, for propagating through mulitpath to the up HS-DPCCH that NodeB sends by user equipment (UE), at the propagation path difference of each paths in the space, cause the propagation channel characteristics difference, such as phase information and amplitude information, NodeB need search for these paths, and obtains these path channel characteristic informations.Utilize these routing informations can realize the despreading descrambling of the every paths of HS-DPCCH channel; Utilize every paths channel characteristic information then, interpolation obtains HS-DPCCH to channel information parameter (such as phase information and amplitude information) that should the footpath, and the result after utilizing it to this path despreading descrambling carries out channel rotation correction, the influence to received signal of removal propagation channel.The mode that the routing information that will come out from every paths demodulation merges according to high specific adds up and obtains ACK or NACK and CQI information behind the HS-DPCCH channel demodulation.
For a user, HS-DPCCH is not continuous in time, only at the HS-PDSCH channel after UE sends Frame, UE just can postpone m*256chips after the time interval at special uplink channel DPCH, send loading ACK or NACK signal, otherwise send DTX (DiscontinuousTransmission, discontinuous transmission) signal.According to this time response, can select effective ACK or NACK data after demodulating; The HS-DPCCH information of carrying CQI and descendingly whether send Frame HS-PDSCH it doesn't matter, according to the delay parameter m that satisfies condition, user UE can determine when the HS-DPCCH information that sends carrying CQI, NodeB can select the effective demodulating information of CQI on the HS-DPCCH according to the criterion of delay parameter m and CQI transmission.So just can obtain ACK or the NACK and the CQI demodulating information of up channel HS-DPCCH carrying.
For delay parameter m is described, the timing relationship between several physical channels of HSDPA up-downgoing to be described earlier.UE and UTRAN must observe this timing relationship between each physical channel, otherwise can't carry out the correct transmission of HS-DSCH data.With respect to the original position of the every frame of Primary Common Control Physical Channel P-CCPCH, the start bit of NodeB emission HS-SCCH and HS-PDSCH subframe is equipped with 5 kinds, referring to Fig. 2, " the transmit and receive process of HSDPA user between NodeB and UE " is designated subframe 0 respectively, subframe 1, ..., subframe 4.The frame length of Primary Common Control Physical Channel P-CCPCH is 10ms, and the original position of HS-SCCH and HS-PDSCH subframe can the respective cycle repetition behind the 10ms.UE determines the time-delay τ of receiving data frames HS-PDSCH with respect to P-CCPCH by monitoring the time-delay between HS-SCCH subframe and the P-CCPCH
HS-PDSCH, i, the downlink dedicated of utilizing RRC to connect high-rise configuration when setting up is believed the time-delay τ of DPCH with respect to P-CCPCH
DPCH, n, obtain uplink feedback channel HS-DPCCH subframe with respect to the up emission delay parameter m of following dedicated channel.NodeB is when receiving up channel HS-DPCCH subframe, according to identical delay parameter information, calculate corresponding delay parameter m, demodulation HS-DPCCH channel that could be correct, UE and NodeB are inconsistent with respect to the delay parameter m calculating of following special uplink channel to same HS-DPCCH subframe else if, just can't carry out the transfer of data of HSDPA.
Subframe 0 original position of HSDPA down physical channel HS-SCCH and P-CCPCH radio frames original position alignment among Fig. 2; The subframe i original position of HS-PDSCH postpones 2 time slots with respect to the original position of the subframe i of HS-SCCH.The HS-SCCH signaling subframe and the HS-PDSCH data burst of NodeB emission will be followed this timing requirement.
The original position of the up emission of UE HS-DPCCH postpones m*256chips with respect to the original position of the up DPDCH of UE emission.Being calculated as of m wherein: m=(T
Tx_diff/ 256)+101, T wherein
Tx_diffBe the initial moment τ of NodeB downlink HS-PDSCH subframe i
HS-PDSCH, iWith comprise the initial moment τ of this subframe original position at interior downlink dedicated channel DPCH frame
DPCH, nPoor, T
Tx_diff=τ
HS-PDSCH, i-τ
DPCH, nThe ACK of HS-DPCCH carrying or the feedback time of NACK and CQI are independent of each other, and the m computing formula above the feedback of ACK or NACK satisfies gets final product, 5 respectively corresponding 5 possible m parameters of period of sub-frame.Feedback for CQI, UE is according to 5 of the HS-DSCH Radio Link possible m parameter values, the given CQI feedback cycle k of RRC message when utilizing the HS-DSCH Radio Link to set up or reshuffle, and the CFN Connection Frame Number of dedicated channel, calculate the m that satisfies condition according to following formula:
For the delay parameter m of condition above satisfying, UE can send CQI in the HS-DPCCH subframe of following up DPCH frame m*256chips in evening.If relate to the re-transmission of ACK or NACK or CQI,, after the HS-DPCCH subframe, repeat accordingly to send then according to the number of retransmissions of high level configuration.Remove the subframe of above-mentioned satisfied transmission condition, in other subframe, UE can not send CQI in HS-DPCCH.
Step s202 determines the HS-DPCCH demodulation performance according to the ACK of demodulation or NACK and CQI information.The HS-DPCCH demodulation performance comprises ACK or NACK demodulation performance and CQI demodulation performance.At first, after statistics sends N HS-PDSCH Frame, the DTX number that receives, utilize the descending compression pattern of following dedicated channel of user, with the up compression pattern-information of following dedicated channel, being designated as invalid statistics owing to the DTX that compresses the time slot generation and removing, not as the statistical value of DTX number, statistics is but received the number of DTX in the place that should receive ACK or NACK, (this demodulation performance can define with various ways as the demodulation performance of ACK or NACK, such as, also can be with the proportionate relationship of the number of receiving DTX and the number of ACK that receives or NACK demodulation performance as ACK or NACK); Determine the demodulation performance of CQI then: in order to add up the demodulation performance of CQI, the Bit Error Code Statistics cycle of setting CQI is consistent with ACK or NACK demodulation performance measurement period, to each the CQI demodulation value in the measurement period, utilize encoder matrix to carry out Gray code, the bit that declares firmly after bit that Gray code is come out and the demodulation carries out error code and calculates, and the error rate in the measurement period averaged, obtain CQI statistics error code as demodulation performance.
Step s203 determines HS-DPCCH power bias parameter adjustment value according to demodulation performance.By poor thresholding of mistake and the good thresholding of mistake of setting ACK or NACK and CQI demodulation, the HS-DPCCH transmitting power of keeping loading ACK or NACK and CQI is in a reasonable range.When preventing that certain user's demodulation performance from having crossed, the interference that excessive transmitting power produces has reduced other users' uplink demodulation performance, prevents that also certain user's demodulation performance from crossing when poor, and too small power can't satisfy active user's demodulation performance requirement.
In the present invention, setting an ACK or NACK mistake receiving alarm thresholding, ACK or NACK demodulation performance according to actual conditions has crossed thresholding, a CQI alarm threshold and a CQI demodulation performance and has crossed thresholding.When actual ACK or NACK demodulation performance statistical value DTX number surpass ACK or NACK mistake receiving alarm thresholding, it is on the low side to illustrate that up HS-DPCCH channel ACK or NACK power bias parameter are provided with on the low side or descending HS-SCCH transmitting power, if the error code of at this moment actual CQI demodulation performance is worse than the CQI alarm threshold, illustrate that then up HS-DPCCH channel ACK or NACK power bias parameter are provided with on the low side, need to increase the power bias parameter, and realize by on original power parameter basis, adding a power adjustment; And surpass ACK or NACK mistake receiving alarm thresholding when actual ACK or NACK demodulation performance statistical value DTX number, and the error code of at this moment actual CQI demodulation performance is not higher than the CQI alarm threshold, it is on the low side to can not determine that then up HS-DPCCH channel ACK or NACK power bias parameter are provided with, and can not adjust the power bias parameter.Because CQI power bias parameter all is to obtain by identical emulation platform with ACK or NACK power bias parameter, can be consistent on demodulation performance, and by the checking assurance, CQI power bias parameter can not occur is provided with rationally, demodulation performance is good, and that ACK or NACK power bias parameter are provided with is unreasonable, the situation of demodulation performance difference.
When actual ACK or NACK demodulation performance are better than ACK or NACK demodulation performance and have crossed thresholding, illustrate that up HS-DPCCH channel ACK or NACK power bias parameter are provided with higher, need reduce the power bias parameter, realize by on original power parameter basis, subtracting a power adjustment.
When actual CQI demodulation can error code when being better than the CQI demodulation performance and having crossed thresholding, it is higher to illustrate that up HS-DPCCH channel CQI power bias parameter is provided with, and need reduce the power bias parameter, realizes by subtract a power adjustment on original power parameter basis.
When the error code of actual CQI demodulation performance surpassed the CQI alarm threshold, it was on the low side to illustrate that up HS-DPCCH channel CQI power bias parameter is provided with, and needed to increase the power bias parameter, realized by add a power adjustment on original power parameter basis.
The value of described power adjustment is adjustable, can obtain by the imitative town of link level, just by emulation with progressively substitution of numerical value, know definite optimum value.Because the adjustment that the power bias parameter is provided with when on the low side is higher than the adjustment significance level under the higher situation, time requirement is shorter, therefore adjust step pitch and can want big relatively, the adjustment step pitch size that the power bias parameter is provided with under the higher situation is principle with reliable and stable, and step pitch is based on fine setting.
Step s204 adjusts the HS-DPCCH transmitting power.At first, after NodeB adjusts the power bias parameter, initiate parameter updating request, require to upgrade the power bias parameter to radio network controller; Radio network controller passes through Uu (air interface) to the new power bias parameter of user device configuration; Subscriber equipment is according to new power bias parameter adjustment HS-DPCCH transmitting power.
Below in conjunction with Fig. 3 the first embodiment of the present invention is described, present embodiment illustrates when up HS-DPCCH transmitting power is on the low side, uses the situation of up HS-DPCCH power control.
At first, execution in step s301, the up HS-DPCCH channel of NodeB demodulation.Behind the descending transmission Frame of the base station node B HS-PDSCH, UE can postpone m*256chips after the time interval at special uplink channel DPCH, sends the CQI information of loading ACK or nack message and satisfied transmission condition.The up HS-DPCCH channel of NodeB demodulation obtains ACK or the NACK and the CQI information of carrying.
Step s302 determines the demodulation performance of ACK or NACK and the demodulation performance of CQI.After statistics sends N HS-PDSCH Frame, the DTX number that receives, utilize the descending compression pattern of following dedicated channel of user, with the up compression pattern-information of following dedicated channel, being designated as invalid statistics owing to the DTX that compresses the time slot generation and removing,, do not add up the number of but receiving DTX in the place that should receive ACK or NACK again, as the demodulation performance of ACK or NACK as the statistical value of DTX number; The Bit Error Code Statistics cycle of setting CQI is consistent with ACK or NACK demodulation performance measurement period, to each the CQI demodulation value in the measurement period, utilize encoder matrix to carry out Gray code, declare firmly after the bit that Gray code is come out and the demodulation (the described term of communicating by letter that is judged to firmly: signal value greater than 0 be mapped as 0, signal value smaller or equal to 0 be mapped as 1) bit carry out error code and calculate, and the error rate in the measurement period averaged, obtain CQI statistics error code.
Step s303, obtain the alarming threshold of HS-DPCCH demodulation CQI error code according to actual conditions: CQI_Standard_BER and ACK or NACK mistake receiving alarm thresholding: TH_DTX_NumInN, these threshold values can be obtained by the link level simulation of HSDPA, power bias parameter Δ
ACK, Δ
NACK, Δ
CQIAdjustment.
Through calculating, if ACK or NACK actual demodulation performance statistics value DTX number 〉=TH_DTX_NumInN, and CQI actual count error code 〉=CQI_Standard_BER, at this moment, can determine needs to adjust the power bias parameter because up HS-DPCCH power bias parameter is provided with the up HS-DPCCH demodulation performance decline that causes on the low side.
Step s304 increases the power bias parameter.
Δ
ACK＝Δ
ACK+Δ
1；
Δ
NACK＝Δ
NACK+Δ
2；
Δ
CQI＝Δ
CQI+Δ
3；
Δ in the top formula
1, Δ
2, Δ
3The expression Δ
ACK, Δ
NACK, Δ
CQIThe power bias parameter is provided with when on the low side, needs the added value of adjusting respectively; Concrete adjusted value can be determined by emulation.
Step s305 adjusts the HS-DPCCH transmitting power.At first, after NodeB increases the power bias parameter, initiate parameter updating request, require to upgrade the power bias parameter to radio network controller; Radio network controller passes through the Uu air interface to the new power bias parameter of user device configuration; Subscriber equipment is according to new power bias parameter adjustment HS-DPCCH transmitting power.
Below in conjunction with Fig. 4 the second embodiment of the present invention is described, present embodiment illustrates when up HS-DPCCH transmitting power is higher, uses the situation of the situation of up HS-DPCCH power control.
At first, execution in step s401, the up HS-DPCCH channel of NodeB demodulation.Behind the descending transmission Frame of the base station node B HS-PDSCH, UE can postpone m*256chips after the time interval at special uplink channel DPCH, sends the CQI information of loading ACK or nack message and satisfied transmission condition.The up HS-DPCCH channel of NodeB demodulation obtains ACK or the NACK and the CQI information of carrying.
Step s402 determines the demodulation performance of ACK or NACK and the demodulation performance of CQI.After statistics sends N HS-PDSCH Frame, the DTX number that receives, utilize the descending compression pattern of following dedicated channel of user, with the up compression pattern-information of following dedicated channel, being designated as invalid statistics owing to the DTX that compresses the time slot generation and removing,, do not add up the number of but receiving DTX in the place that should receive ACK or NACK again, as the demodulation performance of ACK or NACK as the statistical value of DTX number; The Bit Error Code Statistics cycle of setting CQI is consistent with ACK or NACK demodulation performance measurement period, to each the CQI demodulation value in the measurement period, utilize encoder matrix to carry out Gray code, the bit that declares firmly after bit that Gray code is come out and the demodulation carries out error code and calculates, and the error rate in the measurement period averaged, obtain CQI statistics error code.
Step s403 obtains the good excessively thresholding of HS-DPCCH demodulation CQI demodulation performance according to actual conditions: the thresholding that CQI_Best_BER and ACK or NACK demodulation performance are good excessively: DTX_Least_NumInN.These threshold values can be obtained by the link level simulation of HSDPA, power bias parameter Δ
ACK, Δ
NACK, Δ
CQIAdjustment.
Through calculating,, can determine because power bias parameter Δ if when ACK or NACK actual demodulation performance statistics value DTX number≤DTX_Least_NumInN
ACKOr Δ
NACKIt is good excessively that the higher ACK or the NACK demodulation performance of up HS-DPCCH carrying of causing is set.If CQI actual count error code≤CQI_Best_BER can determine because power bias parameter Δ
CQIIt is good excessively that the higher CQI demodulation performance of up HS-DPCCH carrying that causes is set.These excessive power have increased interference to other users' up channel reception, make other users' demodulation performance worsen, and need to adjust the power bias parameter, reduce the HS-DPCCH transmitting power, maintain a reasonable range.
Step s404 reduces the power bias parameter.
Δ
ACK＝Δ
ACK-σ
1；
Δ
NACK＝Δ
NACK-σ
2；
Δ
CQI＝Δ
CQI-σ
3；
σ in the top formula
1, σ
2, σ
3The expression Δ
ACK, Δ
NACK, Δ
CQIThe power bias parameter is provided with when higher, needs the value of adjusting respectively that reduces.The concrete step pitch of adjusting can determine that concrete adjusted value can be determined by emulation by emulation.
Step s405 adjusts the HS-DPCCH transmitting power.At first, after NodeB reduces the power bias parameter, initiate parameter updating request, require to upgrade the power bias parameter to radio network controller; Radio network controller passes through the Uu air interface to the new power bias parameter of user device configuration; Subscriber equipment is according to new power bias parameter adjustment HS-DPCCH transmitting power.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. the Poewr control method of a uplink high-speed special physical control channel is characterized in that, may further comprise the steps:
A, base station obtain the demodulating information of uplink high-speed special physical control channel;
B, according to the demodulating information of described uplink high-speed special physical control channel, determine the demodulation performance of uplink high-speed special physical control channel;
C, determine uplink high-speed special physical control channel power bias parameter adjustment value according to described demodulation performance;
D, carry out the adjustment of uplink high-speed special physical control channel transmitting power according to described power bias parameter adjustment value.
2. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 1, it is characterized in that: the described demodulating information of steps A comprises confirmation ACK or non-confirmation NACK and channel quality indication (CQI) information CQI.
3. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 2, it is characterized in that: described confirmation ACK or non-confirmation NACK send to the base station receive the Frame of a high-speed physical downlink shared channel (HS-PDSCH) HS-PDSCH at subscriber equipment after.
4. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 1, it is characterized in that: the demodulation performance of described uplink high-speed special physical control channel, be the affirmation information A CK that receives by statistics or the quantity of non-confirmation NACK, and the quantity of discontinuous transmission information D TX is determined.
5. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 4, it is characterized in that: when adding up the quantity of described discontinuous transmission information D TX, with the discontinuous transmission information D TX number that receives, deduct because the discontinuous transmission information D TX number that the compression time slot produces; And deduct because the unreasonable discontinuous transmission information D TX number that causes of power setting of downlink high-speed shared control channel HS-SCCH.
6. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 5, it is characterized in that: described because the unreasonable DTX number that causes of power setting of downlink high-speed shared control channel HS-SCCH is to determine according to the demodulation performance of channel quality indication (CQI) information CQI.
7. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 1 is characterized in that, the demodulation performance of the described uplink high-speed special physical control channel of step B is determined by channel quality indication (CQI) information CQI statistics error code values.
8. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 1, it is characterized in that, the described definite uplink high-speed special physical control channel power bias parameter adjustment value of step C, be the alarm threshold by CQI in more described demodulation performance and the demodulating information or cross good thresholding, and/or the wrong receiving alarm thresholding of confirmation ACK or non-confirmation NACK or excessively good thresholding realization in more described demodulation performance and the demodulating information.
9. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 8, it is characterized in that: in the described demodulation performance demodulation performance of confirmation ACK or non-confirmation NACK greater than, equal the wrong receiving alarm thresholding of confirmation ACK or non-confirmation NACK, and in the demodulation performance CQI statistics error code greater than, equal the alarm threshold of described CQI, then the power bias parameter of uplink high-speed special physical control channel confirmation ACK or non-confirmation NACK is provided with on the low sidely, and described power bias parameter adds a power bias parameter adjustment value.
10. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 8, it is characterized in that: in the described demodulation performance demodulation performance of confirmation ACK or non-confirmation NACK less than, equal the good thresholding of mistake of confirmation ACK or non-confirmation NACK, then the power bias parameter of uplink high-speed special physical control channel confirmation ACK or non-confirmation NACK is provided with higherly, and described power bias parameter subtracts a power bias parameter adjustment value.
11. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 8, it is characterized in that: in the described demodulation performance demodulation performance of CQI demodulation statistics error code greater than, equal the alarm threshold of CQI, then the power bias parameter of uplink high-speed special physical control channel CQI is provided with on the low sidely, and described power bias parameter adds a power bias parameter adjustment value.
12. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 8, it is characterized in that: in the described demodulation performance demodulation performance of CQI demodulation statistics error code less than, equal the good thresholding of mistake of CQI, then the power bias parameter of uplink high-speed special physical control channel CQI is provided with higherly, and described power bias parameter subtracts a power bias parameter adjustment value.
13. the Poewr control method as each described uplink high-speed special physical control channel of claim 9 to 12 is characterized in that, it is big that the power bias parameter is provided with the power bias parameter adjustment value step pitch that specific power offset parameter when on the low side is provided with when higher.
14. the Poewr control method of uplink high-speed special physical control channel as claimed in claim 1 is characterized in that, step D is described to carry out the adjustment of High-Speed Dedicated Physical Control Channel transmitting power according to power bias parameter adjustment value and comprises:
The base station sends to radio network controller upgrades the power bias parameter request;
Described radio network controller is with adjusted power bias parameter configuration subscriber equipment;
Described subscriber equipment is according to the transmitting power of described adjusted power bias parameter adjustment uplink high-speed special physical control channel.
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647776B (en) * | 2007-01-31 | 2014-08-27 | 电信科学技术研究院 | Method and device for outer loop power control of enhanced physical uplink channel |
| CN101521527B (en) * | 2008-02-28 | 2012-12-12 | 华为技术有限公司 | Power control method and device thereof for high-speed dedicated physical control channel |
| CN101267253B (en) * | 2008-04-25 | 2014-04-09 | 中兴通讯股份有限公司 | Confirmation information expression method, UE and base station for DTX detection |
| CN102217384B (en) * | 2009-02-03 | 2015-07-29 | 华为技术有限公司 | Power bias report method, modulation signal sending method, mobile terminal and base station |
| CN102726106B (en) | 2011-11-28 | 2015-08-19 | 华为技术有限公司 | The defining method of power offset parameter and device |
| CN103179654B (en) * | 2011-12-26 | 2017-07-18 | 中兴通讯股份有限公司 | PRACH determining method of launch power and device |
| CN103200664A (en) * | 2012-01-10 | 2013-07-10 | 意法-爱立信有限公司 | Power control method, device and user equipment of control channel high-speed sharing |
| CN104041144A (en) * | 2012-11-22 | 2014-09-10 | 华为技术有限公司 | Method and terminal for processing uplink control information, base station, and base station control device |
| WO2014101071A1 (en) * | 2012-12-27 | 2014-07-03 | 华为技术有限公司 | Switching method and device |
| WO2014131187A1 (en) * | 2013-02-28 | 2014-09-04 | 华为技术有限公司 | Power control method and device |
| CN110381573B (en) * | 2018-04-12 | 2021-11-09 | 维沃移动通信有限公司 | Power control method of sidelink and terminal equipment |
| CN111405391A (en) * | 2020-02-18 | 2020-07-10 | 深圳市普威技术有限公司 | Method and device for improving communication quality of communication equipment and communication equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1341318A2 (en) * | 2002-02-17 | 2003-09-03 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting and receiving uplink power offset information in a mobile communication system supporting HSDPA |
| WO2004004164A1 (en) * | 2002-06-28 | 2004-01-08 | Matsushita Electric Industrial Co., Ltd. | Transmission power control method and base station device |
| CN1481175A (en) * | 2002-08-06 | 2004-03-10 | ������������ʽ���� | Method for reporting transmitting channel quality between transmitter and receiver |
| JP2004349884A (en) * | 2003-05-20 | 2004-12-09 | Mitsubishi Electric Corp | Base station and communication method |
-
2004
- 2004-12-13 CN CNB200410098860XA patent/CN100384099C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1341318A2 (en) * | 2002-02-17 | 2003-09-03 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting and receiving uplink power offset information in a mobile communication system supporting HSDPA |
| WO2004004164A1 (en) * | 2002-06-28 | 2004-01-08 | Matsushita Electric Industrial Co., Ltd. | Transmission power control method and base station device |
| CN1481175A (en) * | 2002-08-06 | 2004-03-10 | ������������ʽ���� | Method for reporting transmitting channel quality between transmitter and receiver |
| JP2004349884A (en) * | 2003-05-20 | 2004-12-09 | Mitsubishi Electric Corp | Base station and communication method |
Non-Patent Citations (2)
| Title |
|---|
| Physical layer procedures(FDD)(Release 5). 3rd，Generation，PartnershipProject，Technical，Specification，Group，Radio，Access，Network.3GPP TS 25.214 V5.8.0. 2004 * |
| Spreading and modulation(FDD)(Release 5). 3rd，Generation，PartnershipProject，Technical，Specification，Group，Radio，Access，Network.3GPP TS 25.213 V5.5.0. 2003 * |
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