CN101998608B - Uplink power control method and device - Google Patents
Uplink power control method and device Download PDFInfo
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- CN101998608B CN101998608B CN200910164092.6A CN200910164092A CN101998608B CN 101998608 B CN101998608 B CN 101998608B CN 200910164092 A CN200910164092 A CN 200910164092A CN 101998608 B CN101998608 B CN 101998608B
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Abstract
The invention discloses an uplink power control method and an uplink power control device. The method comprises: pre-estimating the transmission power control command and power gain of a time slot and the time slot domain of a high-speed special physical control channel in the time slot; and computing a transmission power and a gain factor according to the result of the pre-estimation. The method and the device solve the problem that it is difficult to accomplish power control computing within 512chips in the prior art, thereby avoiding the limitation of 512chips, allowing the entire system to complete channel quick power control over channels including high speed packet access(HSPA) effectively and ensuring system performance and stability.
Description
Technical field
The present invention relates to the communications field, in particular to ascending power control method and the device in a kind of universal mobile telecommunications system (Universal Mobile Telecommunications System, referred to as UMTS)/HSPA.
Background technology
For overcoming " near-far interference ", and the rapid fading of antagonism wireless channel, Wideband Code Division Multiple Access (WCDMA) access (Wideband Code Division Multiple Access, referred to as WCDMA) system introduced power control techniques, for dedicated channel Dedicated Physical Data Channel (Dedicated Physical Data Channel, referred to as DPDCH) DPDCH/DPCCH Dedicated Physical Control Channel (Dedicated Physical Control Channel, referred to as DPCCH), what mainly adopt is close-loop power control, this comprises exterior ring power control (slow power control) and inner-loop power control (fast power control), especially in up link, if there is no power controls, subscriber equipment (the User Equipment of overpower transmitting, referred to as UE) can block whole community, exterior ring power is controlled main by statistics DPCH (Dedicated Physical Channel, referred to as DPCH) BLER, the SIR_target of inner-loop power control is set, its control frequency is slower, and inner-loop power control is by constantly measuring the channel quality of Uplink/Downlink, and compare in SIR_target, obtain through-put power and control (Transmit Power Control, referred to as TPC) order to control the transmitting power of UE/ node Node B, its control frequency is very fast, reaches 1500HZ.
High speed downlink packet access (High Speed Downlink Packet Access, referred to as HSDPA) be at third generation partner program (3rd Generation PartnershipProject, referred to as 3GPP) a kind of new technology of proposing in order to meet the asymmetric demand of up/down row data service in Release5 standard, its objective is in the situation that not changing existing WCDMA network configuration, down link peak rate is brought up to 10.8M～14.4Mbps.As the evolution technology of WCDMA, HSDPA will improve performance and the capacity of grid greatly.It can not only support non-real-time service effectively, simultaneously also can be for many real time business, and as Streaming Media etc.
The channel that HSDPA increases on R99 basis comprises:
High-speed physical downlink shared channel (HS-PDSCH) (High Speed Physical Downlink SharedChannel, referred to as HS-PDSCH) be used to carry high-speed downlink shared transmission channel (High Speed Downlink Shared Channel, referred to as HS-DSCH).It is 16 channel code that HS-PDSCH channel is used fixedly spreading factor, supports multi-code transmission, and according to the performance class of UE, in same HS-PDSCH subframe, UE can carry out multi-code transmission with a plurality of channel code sequences.
High-speed down link control channel (High Speed Shared Control Channel, referred to as HS-SCCH): HS-SCCH is fixed rate (60kbps, Business Stream SF=128) down physical channel, be used for carrying send relevant downlink signaling to HS-DSCH.
High-Speed Dedicated Physical Control Channel (High Speed Dedicated Physical ControlChannel, referred to as HS-DPCCH): it carries to descending HS-DSCH and sends relevant uplink feedback signalling.Send the feedback signaling relevant to descending HS-DSCH and comprise mixed automatic retransfer request (Hybrid Automatic Repeat Request, referred to as HARQ) response (HARQ-ACK) and channel quality indication (CQI).HS-DPCCH subframe lengths is 2ms, and each subframe comprises 3 time slots, and each time slot comprises 2560 chips.
High speed uplink packet access (High Speed Uplink Packet Access, referred to as HSUPA) is similar with HSDPA, in 3GPP Release6 standard, introduces, and be that uplink direction is for optimization and the evolution of Packet Service.Can support two kinds of TTI of 10ms and 2ms.Utilize HSUPA technology, up user's hardware circuit solution can improve 2-5 doubly, and HSUPA can also make the WCDMA of the throughput ratio R99 of cell uplink have more 20-50%.
HSUPA newly increases channel and comprises:
Strengthen Dedicated Physical Data Channel (Enhanced Dedicated Physical DataChannel, referred to as E-DPDCH): carrying user uplink link data.Comprise at most four code channels.
Strengthen Dedicated Physical Control Channel (Enhanced Dedicated Physical ControlChannel, referred to as E-DPCCH): for E-DPDCH bear control information, comprise E-TFCI, re-transmission sequence number (RSN) and happy bit information.
Insertion authority channel (Access Grant Channel, referred to as AGCH): the absolute grant channel that SF is 256 provides absolute grant for up E-DCH, uses 1/3 convolutional encoding.
Relative authorization channel (Relative Grant Channel, referred to as RGCH): the relative authorization channel that SF is 128 provides relative authorization for up E-DCH.The information transmitting is 0,1 or discontinuous transmission (Discontinuous Transmission, referred to as DTX).Each time slot closes with Hadamard sequence and the transmitted manner of breathing of specific 40 bits, sequence variation used between time slot, and every three time slots of usining are cycled to repeat unit as one.
The HARQ of HARQ indicating channel (Hybrid ARQ Indicator Channel, referred to as HICH): SF=128 confirms indicating channel carrying HARQ feedback information.HICH and RGCH share a channel, utilize different Hadamard sequences to distinguish the information of two channels.
Fig. 1 controls sequential relationship schematic diagram according to the power of the 3gpp regulation of correlation technique.
The uplink power control principle that in WCDMA, UE surveys is, by receiving the TPC instruction of Node B, increase (UP), reduce the power of (DOWN) or maintenance (HOLD) UL-DPCCH, its amplitude of variation, by TPC_step, determined, and the power of other up channel also should be done respective change according to the variation of UL-DPCCH power, and keep constant rate each other. simultaneously in order to realize fast.In order to reach " fast " of power, control, effectively to resist the effect of deep fade, 3Gpp agreement has been made strict requirement to the sequential of uplink power control, it is the adjustment that each time slot (slot) needs to carry out according to power control instruction TPC ascending power, and only have 512chip from base station side transmission uplink power control instruction TPC to the time that completes a uplink power control, sequential relationship as shown in Figure 1, R5, in R6, introduce after HSPA, because uplink special physical channel quantity increases greatly, cause the power calculation amount of up channel greatly to increase, often in 512chip, be difficult to guarantee once to calculate, make whole system hydraulic performance decline and unstable.
From prior art scheme, can find out the focus of uplink power control is often all to how to improve the effect that power is controlled; And often need to use more data in order to obtain better power control performance, and carry out more substantial calculating, so, be difficult to meet the task of completing a power control calculating in 512chip.
For in correlation technique, the focus of uplink power control being often all to how to improve the effect that power is controlled, and often need to use more data in order to obtain better power control performance, carry out more substantial calculating, thereby the problem that is difficult to meet the task of completing a power control calculating in 512chips, not yet proposes effective solution at present.
Summary of the invention
Focus for uplink power control is often all how to improve the effect that power is controlled, and often need to use more data in order to obtain better power control performance, carry out more substantial calculating, thereby be difficult to meet the problem of the task of completing a power control calculating in 512chips and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of ascending power control method and device, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of ascending power control method.
Ascending power control method according to the present invention comprises: pre-estimation is carried out in the time slot territory to High-Speed Dedicated Physical Control Channel in the transmission power control command of time slot, power gain and time slot; According to the result of pre-estimation, calculate transmitting power and gain factor.
Preferably, according to the result of pre-estimation, calculate transmitting power and gain factor comprises: calculate two transmitting powers at every turn.
Preferably, when transmitting power is two or more, the method also comprises: from transmitting power, select one.
Preferably, the result of pre-estimation comprises transmission power control data, selects one and comprise from transmitting power: according to the index of transmission power control data, merge the transmission power control command in same wireless link collection; According to through-put power set based algorithm, merge the transmission power control command between wireless link collection, obtain a final transmission power control command; According to final transmission power control command, from transmitting power, select one.
Preferably, after calculating transmitting power and gain factor according to the result of pre-estimation, the method also comprises: pre-estimation is carried out in the time slot territory to High-Speed Dedicated Physical Control Channel in the transmission power control command of next time slot, power gain and next time slot.
Preferably, the transmission power control command of time slot being carried out to pre-estimation comprises: the through-put power set based algorithm that judgement time slot need to be used; If judgment result is that the second through-put power set based algorithm, judge whether front 4 time slots are to increase entirely; If the determination result is NO, judge that whether front 4 time slots are entirely for reducing; If the determination result is NO, judgement transmission power control command is for keeping.
Preferably, the method also comprises: if the through-put power set based algorithm that judgement time slot need to be used is the first through-put power set based algorithm, pre-estimation transmission power control command is for increasing or reducing; If judge that front 4 time slots are is to increase entirely, judge that final transmission power control command may be only increase or keep; If judge that front 4 time slots are complete in reducing, and judge that final transmission power control command may be only reduce or keep.
Preferably, pre-estimation being carried out in the time slot territory of High-Speed Dedicated Physical Control Channel in time slot also comprises: whether judge that the time slot of up link Dedicated Physical Control Channel and High-Speed Dedicated Physical Control Channel is poor is more than or equal to remaining chip; If so, estimate the time slot of next up link Dedicated Physical Control Channel and N+1 time slot and N+2 the time slot of High-Speed Dedicated Physical Control Channel are overlapping, wherein, current time slot is N time slot; According to next time slot of up link Dedicated Physical Control Channel and the overlapping situation of High-Speed Dedicated Physical Control Channel time slot, be informed in next up link special physical control channel time slot two weeks gain factors that High-Speed Dedicated Physical Control Channel successively can use.
Preferably, after judging that the time slot of up link Dedicated Physical Control Channel and High-Speed Dedicated Physical Control Channel is poor and whether being more than or equal to remaining chip, the method also comprises: if the determination result is NO, N+2 the time slot and the N+3 time slot that estimate the time slot of next up link Dedicated Physical Control Channel and High-Speed Dedicated Physical Control Channel are overlapping, wherein, current time slot is N time slot.
Preferably, the power gain of time slot is carried out to pre-estimation and comprise: the compressed mode status of next up link special physical control channel time slot of pre-estimation, determine the computational methods of power gain; According to transmission power control command, and definite power gain computational methods calculate power gain value; Power gain value according to calculating, calculates transmitting power; All power gain values are normalized, and at the boundary of time slot of High-Speed Dedicated Physical Control Channel, power switched yield value.
To achieve these goals, according to a further aspect in the invention, provide a kind of uplink power control device.
This device comprises: pre-estimation module, for pre-estimation is carried out in the time slot territory of High-Speed Dedicated Physical Control Channel in the transmission power control command of time slot, power gain and described time slot; Power computation module, for calculating transmitting power and gain factor according to the result of described pre-estimation.
By the present invention, adopt pre-estimation is carried out in the time slot territory of High-Speed Dedicated Physical Control Channel in the transmission power control command of time slot, power gain and time slot; According to the result of pre-estimation, calculate transmitting power and gain factor, solved the problem that is difficult to meet the task of completing a power control calculating in 512chips in prior art, and then reached the restriction of avoiding 512chips, whole system can effectively be completed and comprise the control of HSPA channel fast power, guarantee the performance of system and the effect of stability.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 controls sequential relationship schematic diagram according to the power of the 3Gpp regulation of correlation technique;
Fig. 2 is according to the flow chart of the ascending power control method of the embodiment of the present invention;
Fig. 3 is according to the schematic diagram of the UE side uplink power control global design of the embodiment of the present invention;
Fig. 4 is the step1 process chart according to the embodiment of the present invention;
Fig. 5 is in processing according to the step2 of the embodiment of the present invention, next time slot TPC order pre-estimation process chart;
Fig. 6 is in processing according to the step2 of the embodiment of the present invention, the slot territory of next slotHS-DPCCH of pre-estimation (ACK territory/CQI territory) handling process;
Fig. 7 is according to the slot of next UL-DPCCH of estimation of the embodiment of the present invention and the slot_N+1 of HS-DPCCH and the overlapping schematic diagram of slot_N+2;
Fig. 8 is according to the schematic diagram of the slot of next UL-DPCCH of estimation of the embodiment of the present invention and HS-DPCCH slot_N+2 and slot_N+3;
Fig. 9 is in processing according to the step2 of the embodiment of the present invention, pre-estimation Δ DPCCH, and complete the process chart of two power capability values pre-estimation;
Figure 10 is according to the schematic diagram of the uplink power control device of the embodiment of the present invention.
Embodiment
Functional overview
The focus of considering uplink power control is often all how to improve the effect that power is controlled, and often need to use more data in order to obtain better power control performance, carry out more substantial calculating, thereby be difficult to meet and in 512chips, complete the task that a power control is calculated, the embodiment of the present invention provides ascending power control method and device, and the method comprises: pre-estimation is carried out in the time slot territory to High-Speed Dedicated Physical Control Channel in the transmission power control command of time slot, power gain and time slot; According to the result of pre-estimation, calculate transmitting power and gain factor.
Specifically, the technical program is comprised of a series of pre-estimation algorithm, comprise: pre-estimation is carried out in the TPC order to next slot, the slot territory of HSDPA up channel in next slot (ACK territory/CQI territory) estimated, power gain Δ DPCCH to next slot estimates, finally according to the calculation of parameter of above pre-estimation, goes out the transmitting power of pre-estimation and the gain factor of each channel; Meanwhile, the accuracy in order to guarantee to estimate estimates two performance numbers at every turn, by the time obtains after real TPC, selects an actual value from estimated result before; So, the work having needed in " 512chip " is only obtain TPC instruction and select an estimated value, can meet the requirement of agreement in sequential completely, has guaranteed the promptness of fast power control and the stability of system.
Meanwhile, the accuracy in order to guarantee to estimate estimates two performance numbers at every turn, by the time obtains after real TPC, selects an actual value from estimated result before.
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Embodiment of the method
According to embodiments of the invention, provide a kind of ascending power control method.
Fig. 2 is according to the flow chart of the ascending power control method of the embodiment of the present invention.
As shown in Figure 2, the method comprises that following step S202 is to step S204:
Step S202, carries out pre-estimation to the time slot territory of High-Speed Dedicated Physical Control Channel in the transmission power control command of time slot, power gain and time slot;
Step S204, calculates transmitting power and gain factor according to the result of pre-estimation.
Below in conjunction with example, the implementation procedure of the embodiment of the present invention is described in detail.
The present invention is mainly divided into uplink power control two parts and carries out, be uplink power control step1 and step2, each slot carries out step1 and step2 operation, by computing time urgent, the part that amount of calculation is less, be placed in step1 and process, and will not be computing time very urgent, the part that amount of calculation is very large, is placed in step2 and processes, these two steps cooperatively interact, and finally complete the realization of uplink power control.
Fig. 3 is according to the schematic diagram of the UE side uplink power control global design of the embodiment of the present invention.
As shown in Figure 3, in interrupting, the TPC of each slot of DL-DPCCH successively carries out the calculating of uplink power control step1 and step2; Wherein step1 need to complete reception and the merging of TPC symbol in 512chip, and from the estimation results of the step2 of last slot, select a real transmitting power according to the court verdict of TPC (UP, DOWN or HOLD), configuration is to RF, to control the power (as the slot_n in Fig. 3) of current slot, the calculating of this part must complete in " 512chip "; Carry out subsequently the operation of step2, need to complete: 1) the TPC order of next slot of pre-estimation (needing to use the TPC order of current slot here), 2) the slot territory of next slot HS-DPCCH of pre-estimation (ACK territory/CQI territory), 3) next slot of pre-estimation _ DPCCH, and complete the pre-estimation (can estimate two class values here, be selected by the step1 of next slot) of the power gain (β) of next slot performance number and each channel.To specifically explain each little step below.
Fig. 4 is the step1 process chart according to the embodiment of the present invention.
As shown in Figure 4, particularly, step1 comprises:
Step S401, obtains the TPC data after demodulation, comprises the TPC data of the current all communities that establish the link;
Step S402, the TPC order concentrated due to same wireless link is identical, therefore, according to TPC_index parameter, merges the TPC order in wireless link collection;
Step S403, according to the PCA algorithm of current slot, merges the TPC order between wireless link collection, thereby obtains a final TPC order;
Step S404, the final TPC order obtaining according to step 303, in two power contorl parameters estimating, selects a correct power contorl parameters from (last slot) step2 last time, and configuration is to RF, and the power that completes this slot is controlled.
Fig. 5 is in processing according to the step2 of the embodiment of the present invention, next time slot TPC order pre-estimation process chart.
As shown in Figure 5, specifically, step2 comprises:
Step S501, the TPC order of obtaining the current slot calculating in step1;
Step S502, judges the PCA algorithm that next slot need to be used, if PCA1 performs step S503, if PCA2 performs step S504;
Step S503, if that next slot use is PCA1, TPC order only has UP and two kinds of possibilities of DOWN in this case, therefore, our direct pre-estimation TPC order is UP_or_DOWN;
Step S504, carries out this step, illustrates and has used PCA2, owing to being that every 5 slot carry out a power adjustment, if 5 slot are UP entirely, final TPC judgement is UP, if 5 slot are DOWN entirely, final TPC judgement is for DOWN, if the TPC of 5 slot has different item, final TPC judgement is HOLD, therefore, now we judge that whether front 4 slot are UP entirely, if so, perform step S505; Otherwise, execution step S506;
Step S505, because front 4 slot are UP entirely, so we can judge that final TPC order may be only UP_or_HOLD;
Step S506, judges whether front 4 slot are DOWN entirely; If so, execution step S507, otherwise, execution step S508;
Step S507, because front 4 slot are DOWN entirely, so we can judge that final TPC order may be only DOWN_or_HOLD;
Step S508, because front 4 slot have different TPC orders, therefore, can directly judge that final TPC order is for HOLD.
Fig. 6 is in processing according to the step2 of the embodiment of the present invention, the slot territory of next slot HS-DPCCH of pre-estimation (ACK territory/CQI territory) handling process.
Accompanying drawing 6 is during step2 processes, the slot territory of next slot HS-DPCCH of pre-estimation (ACK territory/CQI territory) handling process, because boundary of time slot and the UL-DPCCH boundary of time slot of HS-DPCCH do not line up, and its different slot territory, power gain factors (β hs) is not identical yet, therefore, the object of this step is: the slot territory state of corresponding HS-DPCCH in next UL-DPCCH slot of correct estimation, to use correct β hs, specifically, it comprises:
Step S601, obtains (HS-DPCCH's is for No. slot 0～2 cycle count, and 0 represents ACK territory, and 1 and 2 represent CQI territories) slot_N No. slot of current time HS-DPCCH;
Step S602, whether judgement HS-DPCCH_timing_offset (the slot offset that represents UL-DPCCH and HS-DPCCH, UL-DPCCH slot is front) is more than or equal to Remainder chip (representing the chip number that current time finishes apart from this slot); If so, perform step S603, otherwise, execution step S604;
Step S603, according to the judgement of step S602, can direct estimation goes out the slot of next UL-DPCCH and HS-DPCCH slot_N+1 (N+1 gap) and slot_N+2 (N+2 gap) overlapping;
Fig. 7 is according to the slot of next UL-DPCCH of estimation of the embodiment of the present invention and the slot_N+1 of HS-DPCCH and the overlapping schematic diagram of slot_N+2; This figure is the schematic diagram of this situation;
Step S604, can direct estimation goes out the slot of next UL-DPCCH and HS-DPCCHslot_N+2 and slot_N+3 overlapping,
Fig. 8 is that this figure is the schematic diagram of this situation according to the schematic diagram of the slot of next UL-DPCCH of estimation of the embodiment of the present invention and HS-DPCCH slot_N+2 and slot_N+3;
Step S605, according to next slot of UL-DPCCH and the overlapping situation of HS-DPCCH slot, can know in next UL-DPCCH slot, two weeks β hs that HS-DPCCH successively can use, for subsequent calculations ready.
Fig. 9 is in processing according to the step2 of the embodiment of the present invention, pre-estimation Δ DPCCH.And complete the process chart of two power capability values pre-estimation.
As shown in Figure 9, particularly, comprising:
Step S901, the compressed mode status of next UL-DPCCH slot of pre-estimation (gap phase, resume phase, recover phase, normal epoch), determines the computational methods of Δ DPCCH;
Step S902, calculates corresponding Δ according to the compressed mode status estimating
pILOT, for calculating Δ
dPCCHfurther lay the first stone;
Step S903, according to estimate above two kinds of possible TPC orders, and the Δ DPCCH computational methods that determine of step 802, calculate respectively two kinds may situations under Δ DPCCH value;
Step S904, according to calculate two kinds may Δ DPCCH values, calculate two kinds of possible transmitting powers, save, for the step1 of next slot, select use, thereby complete the control of gross power;
Step S905, step S904 has completed the control to gross power, but the relative power ratio between each up channel, need to determine by β value, before we had estimated the slot territory of two HS-DPCCH overlapping in a UL-DPCCH slot, now, we are according to this estimated result, to all β values (β c, β d, β hs, β ec, β ed) be normalized, and on the slot border of HS-DPCCH, switch two groups of β values, thereby realize twice variation of each channel power relation in a UL-DPCCH slot.Same, can β value be used by the step1 of next slot.
Device embodiment
According to embodiments of the invention, provide a kind of uplink power control device.
Figure 10 is according to the schematic diagram of the uplink power control device of the embodiment of the present invention.
As shown in figure 10, this uplink power control device 100 comprises: pre-estimation module 102 and power computation module 104.
Particularly, pre-estimation module 102 is for carrying out pre-estimation to the time slot territory of High-Speed Dedicated Physical Control Channel in the transmission power control command of time slot, power gain and time slot; Power computation module 104 is for calculating transmitting power and gain factor according to the result of pre-estimation.
In interrupting, the TPC of each slot of DL-DPCCH successively carries out the calculating of uplink power control step1 and step2; Wherein step1 need to complete reception and the merging of TPC symbol in 512chip, and from the estimation results of the step2 of last slot, select a real transmitting power according to the court verdict of TPC (UP, DOWN or HOLD), configuration is to RF, to control the power of current slot, the calculating of this part must complete in " 512chip "; Carry out subsequently the operation of step2, need to complete: the TPC order of 1) pre-estimation module, 102 next slot of pre-estimation (needing to use the TPC order of current slot here), 2) the slot territory of pre-estimation module 102 next slot HS-DPCCH of pre-estimation (ACK territory/CQI territory), 3) pre-estimation module, 102 next slot of pre-estimation _ DPCCH, and by power computation module 104, complete the calculating (can estimate two class values here, be selected by the step1 of next slot) of the power gain (β) of next slot performance number and each channel.
As can be seen from the above description, the present invention has realized the restriction of avoiding 512chips, whole system can effectively be completed and comprise the control of HSPA channel fast power, guarantees the performance of system and the effect of stability.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an ascending power control method, is characterized in that, comprising:
Pre-estimation is carried out in time slot territory to High-Speed Dedicated Physical Control Channel in the transmission power control command of time slot, power gain and described time slot;
According to the result of described pre-estimation, calculate transmitting power and gain factor;
Wherein, the transmission power control command of time slot being carried out to pre-estimation comprises:
Judge the through-put power set based algorithm that described time slot need to be used;
If judgment result is that the second through-put power set based algorithm, judge whether front 4 time slots are to increase entirely;
If the determination result is NO, judge that whether front 4 time slots are entirely for reducing;
If the determination result is NO, judge that described transmission power control command is for keeping;
Wherein, pre-estimation being carried out in the time slot territory of High-Speed Dedicated Physical Control Channel in described time slot comprises:
Whether judge that the time slot of up link Dedicated Physical Control Channel and High-Speed Dedicated Physical Control Channel is poor is more than or equal to remaining chip;
If so, estimate the time slot of next up link Dedicated Physical Control Channel and N+1 time slot and N+2 the time slot of High-Speed Dedicated Physical Control Channel are overlapping, wherein, current time slot is N time slot;
According to next time slot of up link Dedicated Physical Control Channel and the overlapping situation of High-Speed Dedicated Physical Control Channel time slot, be informed in next up link special physical control channel time slot two weeks gain factors that High-Speed Dedicated Physical Control Channel successively can use;
Wherein, describedly the power gain of time slot carried out to pre-estimation comprise:
The compressed mode status of next up link special physical control channel time slot of pre-estimation, determines the computational methods of power gain;
According to described transmission power control command, and the described power gain computational methods of determining calculate power gain value;
Described power gain value according to calculating, calculates transmitting power;
All power gain values are normalized, and at the boundary of time slot of High-Speed Dedicated Physical Control Channel, switch described power gain value.
2. method according to claim 1, is characterized in that, according to the result of described pre-estimation, calculates transmitting power and gain factor comprises:
Calculate two described transmitting powers at every turn.
3. method according to claim 1, is characterized in that, when described transmitting power is two or more, described method also comprises:
From described transmitting power, select one.
4. method according to claim 3, is characterized in that, the result of described pre-estimation comprises transmission power control data, selects one and comprise from described transmitting power:
According to the index of described transmission power control data, merge the described transmission power control command in same wireless link collection;
According to through-put power set based algorithm, merge the described transmission power control command between described wireless link collection, obtain a final transmission power control command;
According to described final transmission power control command, from described transmitting power, select one.
5. method according to claim 1, is characterized in that, after calculating transmitting power and gain factor according to the result of described pre-estimation, described method also comprises:
Pre-estimation is carried out in time slot territory to High-Speed Dedicated Physical Control Channel in the transmission power control command of next time slot, power gain and described next time slot.
6. method according to claim 1, is characterized in that, described method also comprises:
If judge that the through-put power set based algorithm that described time slot need to be used is the first through-put power set based algorithm, pre-estimation transmission power control command is for increasing or reducing;
If judge that the through-put power set based algorithm that described time slot need to be used is the second through-put power set based algorithm, and judge that described front 4 time slots are is to increase entirely, judge that final transmission power control command may be only increase or keep;
If judge that the through-put power set based algorithm that described time slot need to be used is the second through-put power set based algorithm, and judge that described front 4 time slots are complete in reducing, and judge that final transmission power control command may be only reduce or keep.
7. method according to claim 1, is characterized in that, after judging that the time slot of up link Dedicated Physical Control Channel and High-Speed Dedicated Physical Control Channel is poor and whether being more than or equal to remaining chip, described method also comprises:
If the determination result is NO, N+2 the time slot and the N+3 time slot that estimate the time slot of next up link Dedicated Physical Control Channel and High-Speed Dedicated Physical Control Channel are overlapping, and wherein, current time slot is N time slot.
8. a uplink power control device, is characterized in that, comprising:
Pre-estimation module, for carrying out pre-estimation to the time slot territory of High-Speed Dedicated Physical Control Channel in the transmission power control command of time slot, power gain and described time slot;
Power computation module, for calculating transmitting power and gain factor according to the result of described pre-estimation;
Wherein, described pre-estimation module is carried out pre-estimation by carrying out following function to the transmission power control command of time slot:
Judge the through-put power set based algorithm that described time slot need to be used;
If judgment result is that the second through-put power set based algorithm, judge whether front 4 time slots are to increase entirely;
If the determination result is NO, judge that whether front 4 time slots are entirely for reducing;
If the determination result is NO, judge that described transmission power control command is for keeping;
Wherein, described pre-estimation module is carried out pre-estimation by carrying out following function to the time slot territory of High-Speed Dedicated Physical Control Channel in described time slot:
Whether judge that the time slot of up link Dedicated Physical Control Channel and High-Speed Dedicated Physical Control Channel is poor is more than or equal to remaining chip;
If so, estimate the time slot of next up link Dedicated Physical Control Channel and N+1 time slot and N+2 the time slot of High-Speed Dedicated Physical Control Channel are overlapping, wherein, current time slot is N time slot;
According to next time slot of up link Dedicated Physical Control Channel and the overlapping situation of High-Speed Dedicated Physical Control Channel time slot, be informed in next up link special physical control channel time slot two weeks gain factors that High-Speed Dedicated Physical Control Channel successively can use;
Wherein, described pre-estimation module is carried out pre-estimation by carrying out following function to the power gain of time slot:
The compressed mode status of next up link special physical control channel time slot of pre-estimation, determines the computational methods of power gain;
According to described transmission power control command, and the described power gain computational methods of determining calculate power gain value;
Described power gain value according to calculating, calculates transmitting power;
All power gain values are normalized, and at the boundary of time slot of High-Speed Dedicated Physical Control Channel, switch described power gain value.
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| CN1428947A (en) * | 2001-12-28 | 2003-07-09 | 华为技术有限公司 | Power control method of high-speed physical control channel in high-speed data access system |
| CN1859029A (en) * | 2006-02-09 | 2006-11-08 | 华为技术有限公司 | Self adaptive power control method for up-high speed special physical control channel |
| CN101237260A (en) * | 2007-02-02 | 2008-08-06 | 中兴通讯股份有限公司 | Uplink power control device and method |
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| CN1428947A (en) * | 2001-12-28 | 2003-07-09 | 华为技术有限公司 | Power control method of high-speed physical control channel in high-speed data access system |
| CN1859029A (en) * | 2006-02-09 | 2006-11-08 | 华为技术有限公司 | Self adaptive power control method for up-high speed special physical control channel |
| CN101237260A (en) * | 2007-02-02 | 2008-08-06 | 中兴通讯股份有限公司 | Uplink power control device and method |
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