CN100563121C - A kind of regulation method of SIR of special used for physical control channel DPCCH - Google Patents
A kind of regulation method of SIR of special used for physical control channel DPCCH Download PDFInfo
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Abstract
A kind of regulation method of SIR of special used for physical control channel DPCCH may further comprise the steps: choose the effectiveness parameter of channel, and according to described parameter thresholding is set; Obtain described parameter; The size of more described parameter and described thresholding if parameter does not satisfy threshold requirement, then upgrades from RNC issuing the sir target value of obtaining, then according to the SIR on the sir target value adjustment Dedicated Physical Control Channel after upgrading.The present invention is owing to introduced the effectiveness parameter as adjusting references object in the SIR of channel adjustment process, make the SIR of channel can truly reflect the SIR situation of HS-DPCCH channel, use the SIR of the method for the invention adjustment can either satisfy the dedicated channel quality requirement, can satisfy of the requirement of customer service type again for effectiveness, avoided because the channel signal number of retransmissions is too much the problem that the channel downstream rate that causes does not increase.
Description
Technical field
The present invention relates to field of wireless communication, specifically relate to a kind of regulation method of SIR of special used for physical control channel DPCCH.
Background technology
It is the key character of WCDMA technology the 5th version that high speed downlink packet inserts (HSDPA), retransmits (HARQ) by adaptive modulation and coding (AMC), mixing, and the series of key techniques such as fast dispatch of base station, has realized descending high speed data transfer.
In Wideband Code Division Multiple Access (WCDMA) (WCDMA) system, because the introducing of HSDPA has increased by three kinds of channels, is respectively: be used for the high-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH) in downlink transmission data information, the High-Speed Dedicated Physical Control Channel (HS-DPCCH) that is used to transmit the High-Speed Shared Control Channel (HS-SCCH) of Downlink Control Information and is used to transmit uplink feedback information.
(DPCH) compares with dedicated channel, and HSDPA has very big advantage, and be mainly as follows:
(1) a plurality of users in the sub-district share all resources of HSDPA.Very suitable those transfer of data demands have sudden, and data transmission delay requires not have the high non-real-time services of session service such as voice call.
(2) the adaptive modulation and coding function of HSDPA, make the modulation system that when the residing channel circumstance of user is reasonable, can adopt 16QAM, and use high encoding rate, thereby under the situation of using same letter sign indicating number and power resource, obtain high-speed data transmission, therefore HSDPA is the solution that the WCDMA down high speed inserts, and can effectively solve the limited problem of downlink capacity.
(3) HSDPA adopt to mix retransmits (HAPQ) technology, directly bust this is retransmitted and the rlc layer of DCH channel retransmits, greatly reduces the time delay that data re-transmission is brought, for the user provides higher service quality in physical layer.
Yet, there is shade in the radio environment, multipath fading and remote loss influence, the position of honeycomb fashion travelling carriage in the sub-district is at random, and often change, so path loss can significantly change, especially in multi-region honeycomb DS/CDMA system, same frequency is all adopted in all sub-districts, different user addresses distributed sign indicating number is a quadrature in theory, in fact be difficult to guarantee, cause the phase mutual interference of each interchannel, thereby (occur in the up link, if all in the sub-district are used per family with identical power emission, then the travelling carriage arrival signal of base station near the base station is strong to cause serious " near-far interference " inevitably, a little less than the travelling carriage arrival signal of base station away from the base station, cause strong signal to cover weak signal) and " turning effect " (occur in the down link, when travelling carriage is in sub-district corner, received interference is near three times the sub-district, when serious interference, the communication quality of travelling carriage can descend rapidly).
Therefore, how effective power is controlled, and under the prerequisite of the service quality (QoS) that guarantees customer requirements, at utmost reduces transmitting power, reduces system interference, increases power system capacity, is the key in the WCDMA technology.There are forward power control (promptly controlling base station transmitting power) and reverse power control (promptly controlling transmission power of mobile station) in the WCDMA system, wherein reverse power control is particularly important, because guarantee power system capacity and communication quality, overcome problems such as decline and solution near-far interference, all will rely on reverse power control to a great extent.
In the WCDMA system, power control can be divided into two big classes: inner-loop power control and external circule power control.
The main effect of inner-loop power control is by the transmitting power of control physical channel, makes the SIR (SIR) of reception converge on target SIR.The base station will estimate to receive sir value continually, and it is compared with the target SIR value.If the SIR that records is higher than target SIR, the base station just orders UE to reduce transmitting power; Otherwise, then require UE to improve transmitting power.
External circule power control is by dynamically adjusting the sir target value of inner-loop power control, makes communication quality meet the demands all the time (the BLER/BER value that promptly reaches regulation).External circule power control carries out in RNC.Because the complexity of wireless channel is only carried out power control according to sir value and can not really be reacted link-quality.Such as: for stationary user, low speed user (rate travel 3kM/H) and highspeed user (rate travel 50kM/H), guaranteeing on the basis of identical BLER/BER, is different to the requirement of SIR.And final communication quality is to weigh by BLER/BER, therefore is necessary dynamically to adjust the sir target value according to actual BLER value.
External circule power control is primarily aimed at the BLER of dedicated channel DCH, just according to the Eb/Io of physical channel DPDCH channel.Adjust the sir target value of DPCCH channel, but the influence of HS-DPCCH channel has been ignored in this adjustment, sir value can't correctly reflect the present residing SIR of HS-DPCCH channel, this will cause the BLER of DCH to reach the requirement of quality of service, but the ACK/NACK error rate after the HS-DPCCH demodulation still is higher, can't satisfy the HSDPA performance requirement.
In order to solve the above problems, the mode that prior art adopts inner-loop power control to combine with external circule power control is usually adjusted.Concrete method of adjustment is as follows:
RNC is according to the BLER of dedicated channel DCH, adjust the sir target value of physical channel DPCCH, Node B is according to receiving SIR and sir target value on the DPCCH channel, thereby adjustment UE transmitting power is finally controlled the channel quality of physical channel DPCCH, DPDCH and HS-DPCCH.
But, this method of adjustment is only determined the sir target value of physical channel DPDCH according to the dedicated channel service type, thereby adjust the SIR of DPCCH, is inadequate with the resulting SIR of this method of adjustment as the required SIR of whole physical channel, this SIR can't truly reflect the SIR on the HS-DPCCH channel, can cause the dedicated channel quality to reach operation quality requirement like this, and the error rate of ACK or NACK fails to reach requirement, it is more to cause HSDPA to retransmit, and downstream rate does not increase.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of regulation method of SIR of special used for physical control channel DPCCH, make the signal interference ratio of channel can satisfy the user quality requirement of dedicated channel, can truly reflect the situation on the HS-DPCCH channel again, avoid because HSDPA retransmits too much the problem that causes downstream rate not increase.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions: a kind of regulation method of SIR of special used for physical control channel DPCCH may further comprise the steps:
A, choose the effectiveness parameter of channel, and according to the default thresholding of described parameter, the effectiveness in the described efficiency of transmission parameter reflection channel;
B, obtain described parameter;
The size of C, more described parameter and described thresholding, if described parameter does not satisfy threshold requirement, execution in step D then;
D, upgrade the signal interference ratio desired value, and adjust the signal interference ratio of Dedicated Physical Control Channel according to the signal interference ratio desired value after upgrading;
In the method for the invention, the effectiveness parameter of choosing channel described in the steps A is specially: choose the ratio value of user between the statistics numbers of each confirmation of Node B feedback as described effectiveness parameter, described each confirmation is indicated described user's data reception condition.
In the method for the invention, choose ACK indication number and DTX indicated number purpose ratio value as described effectiveness parameter, perhaps, choose the ratio value of ACK indication number and ACK indication number and DTX indication number sum as described effectiveness parameter.
In the method for the invention, choose ACK indication number and NACK indicated number purpose ratio value as described effectiveness parameter, perhaps, choose the ratio value of ACK indication number and ACK indication number and NACK indication number sum as described effectiveness parameter.
In the method for the invention, the ratio value of choosing ACK indication number and NACK indication number and DTX indication number sum is as described effectiveness parameter.
In the method for the invention, the ratio value of choosing ACK indication number and ACK indication number, NACK indication number and DTX indication number sum is as described effectiveness parameter.
In the method for the invention, being provided with specifically of thresholding described in the steps A also requires to be provided with according to actual user's type of service, requires set thresholding to reflect the minimum requirements of described customer service type for described effectiveness.
In the method for the invention, described step B is specifically: Node B is according to the HSDPCCH frame that receives, user in the frame is carried out statistical analysis to the affirmation information of Node B feedback data reception obtain, wherein said confirmation comprises ACK indication, NACK indication and DTX indication.
In the method for the invention, the renewal of the signal interference ratio desired value described in the described step D may further comprise the steps:
D1, a signal interference ratio increment is set;
D2, Node B with current signal interference ratio desired value be updated to Node B from RNC issue the signal interference ratio desired value obtained and described signal interference ratio increment and.
In the method for the invention, the signal interference ratio that the signal interference ratio desired value according to after upgrading described in the step step D is adjusted Dedicated Physical Control Channel specifically may further comprise the steps:
The current signal interference ratio that D3, Node B estimation receives;
D4, more described current signal interference ratio and described signal interference ratio desired value size, if current signal interference ratio greater than described signal interference ratio desired value, execution in step D5 then is if current signal interference ratio is less than described signal interference ratio desired value, execution in step D6;
D5, Node B order subscriber equipment reduces transmitting power;
D6, Node B order subscriber equipment improves transmitting power.
Above technical scheme as can be seen, because the present invention has adopted in the HSDPA running, the HSDPCCH frame that the NodeB lateral root sends via the HS-DPCCH channel according to the user, obtain the effectiveness parameter of channel, described effectiveness parameter can be chosen ACK indication number and DTX indicated number purpose ratio value and/or ACK indication number and NACK indicated number purpose ratio value, ACK indication number and NACK indication number, the ratio value of DTX indication number and ACK indication number sum, and the ratio value of ACK indication number and DTX indication number and NACK indication number sum.Require to be provided with corresponding thresholding according to selected effectiveness parameter and customer service type, make thresholding reflect of the minimum requirements of customer service type to described effectiveness parameter, more selected current demand signal efficiency of transmission parameter and the size of setting thresholding, if current demand signal efficiency of transmission parameter does not satisfy threshold requirement, Node B increases on the sir target value basis that RNC issues, and the sir target value after will increasing is upgraded alternative former sir target value, and then the current sir target value after the utilization renewal is adjusted the transmitting power of UE, and then adjust the SIR of DPCCH channel, till adjusted SIR makes described effectiveness parameter satisfy to set the requirement of thresholding.In terms of existing technologies, SIR method of adjustment of the present invention, because having introduced effectiveness parameter and parameter thresholding compares to adjust the SIR of DPCCH channel, avoided causing the user to DTX because the SIR of channel is low excessively, NACK and ACK judge the appearance erroneous judgement, thereby cause existing in the HS-DPCCH channel situation of higher SIR, the final SIR that obtains that adjusts that makes can truly reflect the SIR on the HS-DPCCH channel, guarantee that the SIR of channel can both satisfy the user quality requirement of dedicated channel, can satisfy of the restriction of customer service type again to number of retransmissions, avoided because HSDPA retransmits too much the problem that causes downstream rate not increase.
Description of drawings
Fig. 1 is the scheduling schematic diagram of HSDPA resource between a plurality of users;
Fig. 2 is the transfer of data schematic diagram that the user utilizes HSDPA to carry out;
Fig. 3 is up HSDPCCH frame structure schematic diagram;
The schematic flow sheet of Fig. 4 the method for the invention;
Fig. 5 is the schematic flow sheet of the embodiment of the invention 1 described method;
Fig. 6 is the schematic flow sheet of the embodiment of the invention 2 described methods;
Fig. 7 is the schematic flow sheet of the embodiment of the invention 3 described methods;
Fig. 8 is the schematic flow sheet of the embodiment of the invention 4 described methods;
Fig. 9 is the schematic flow sheet of the embodiment of the invention 5 described methods.
Embodiment
Core of the present invention is: the effectiveness parameter of choosing channel; Require a thresholding is set according to selected effectiveness parameter and customer service type, make thresholding reflect of the minimum requirements of customer service type the effectiveness of signal; Compare the effectiveness parameter current in the channel and the size of thresholding, if current effectiveness parameter does not satisfy threshold requirement, Node B adjusts to upgrade and issues the signal interference ratio desired value of obtaining from RNC; And then, adjust the signal interference ratio of HSDPA channel according to the current signal interference ratio desired value after upgrading, make selected that the effectiveness parameter satisfy threshold requirement up to the signal interference ratio of channel.
In order to make those skilled in the art better understand method of the present invention, further describe below in conjunction with accompanying drawing and specific embodiment:
Figure 2 shows that a user utilizes HSDPA to carry out the schematic diagram of transfer of data in the WCDMA system.Referring to the butted part of eating dishes without rice or wine of figure, for the user that each use HSDPA carries out transfer of data, must set up a two-way DCH signaling channel, a up HS-PDSCH channel and a up DCH Traffic Channel simultaneously.Wherein two-way DPCH signaling channel is used between transmission user and the network interactive signaling message, and for example switching command, business are set up message, with measure control etc., descending HS-PDSCH channel is used for transmitting descending business datum, and up DCH Traffic Channel is used for transmitting up business datum or/and the status report of downlink service data correspondence.
Especially, up HS-DPCCH channel is used for affirmation information to the base station feedback Data Receiving by the user, and (data correctly receive then feeding back ACK, NACK is then fed back in the Data Receiving failure, do not receive then user's feedback information not of data, can this not the feedback information situation be the DTX indication) and channel quality indicate (CQI).The user specifically is divided into the DTX indication to the confirmation of receipt information of information, NACK indication and ACK indication, to sending which kind of feedback information mainly is according to the user SIR of the information that receives to be judged, be preset with the minimum SIR of a SIR thresholding among the UE as the useful information of customer acceptance, this thresholding is become thresholding 1, if the SIR of the information that receives is lower than this threshold value, think that then the user does not receive the data of downlink transfer, UE can not send any message at the HS-DPCCH channel, think user feedback DTX, if the SIR of the information that receives is higher than this thresholding, think that then the user has received downlink transfer information, further be preset with a SIR thresholding that whether is correctly received as information greater than another thresholding of thresholding 1 among the UE, this thresholding is become thresholding 2, if the information that the user receives greater than thresholding 1 less than thresholding 2 then think that the downlink transfer information that receives is not correctly received by the user, feedback NACK, if the SIR of the information that the user receives is greater than thresholding 2, think that then this downlink transfer information is correctly received feeding back ACK by the user.If user feedback NACK or DTX, Node B can send this piece not by the correct data that receive of user again at next delivery time, correctly receives and feeding back ACK up to the user.If the SIR of signal itself is very low in the channel, cause the user that correct reception is judged by accident and do not receive or receive mistake, cause the SIR in the HS-DPCCH channel very low, number of retransmissions is too much, has influenced the HSDPA transmission rate, causes user's the variation of experiencing.Described NACK indication, DTX indication and ACK indication reflect that with the HARQ-ACK sign indicating number section in frame Fig. 3 is a HS-DPCCH frame structure schematic diagram.
Be the schematic flow sheet of the method for the invention as shown in Figure 4, as shown: this method may further comprise the steps:
Step S401: choose the effectiveness parameter of channel, and according to the default thresholding of described parameter.
Wherein said effectiveness parameter specifically reflects the effectiveness in the channel, specifically can choose the ratio value of user between the statistics numbers of each confirmation that Node B feedback data receives as the effectiveness parameter.Following 8 kinds of selection schemes specifically can be arranged in application: (1) is chosen ACK and is indicated number and DTX indicated number purpose ratio value as described effectiveness parameter; (2) choose the ratio value of ACK indication number and ACK indication number and DTX indication number sum as described effectiveness parameter; (3) choose ACK indication number and NACK indicated number purpose ratio value as described effectiveness parameter; (4) choose the ratio value of ACK indication number and ACK indication number and NACK indication number sum as described effectiveness parameter; (5) choose ACK indication number and DTX indicated number purpose ratio value, and ACK indicates number and NACK indicated number purpose ratio value jointly as described effectiveness parameter; (6) choose the ratio value that ACK indication number and ACK indication number and DTX indicate the number sum, and the ratio value of ACK indication number and ACK indication number and NACK indication number sum is jointly as described effectiveness parameter; (7) choose the ratio value of ACK indication number and NACK indication number and DTX indication number sum as described effectiveness parameter; (8) choose the ratio value of ACK indication number and ACK indication number, NACK indication number and DTX indication number sum as described effectiveness parameter.
According to the default thresholding of selected effectiveness parameter, being provided with according to actual user's type of service of this thresholding requires to be provided with, and requires set thresholding to reflect the minimum requirements of described customer service type for described effectiveness.For concrete parameter, this thresholding specifically is the lower limit or the higher limit of selected county's efficiency of transmission parameter.Such as selected effectiveness parameter be: the ratio value of ACK indication number and ACK indication number, NACK indication number and DTX indication number sum, this thresholding is exactly the lower limit of this ratio value so, the corresponding inverse of this ratio value of can also choosing is as efficient efficiency of transmission parameter, for this kind situation, then set thresholding should be that the customer service type is to the desired higher limit of this parameter.The situation that is provided with of concrete thresholding is provided with according to selected effectiveness parameter and corresponding customer service type.
Step S402: obtain described parameter.
Node B is according to the HSDPCCH frame that receives, ACK indication, NACK indication and DTX indication number that user in the frame receives to Node B feedback data are added up, and be the sort of type according to selected signal efficiency parameter, get corresponding indicated number purpose ratio value and obtain corresponding effectiveness parameter.
Step S403: the size of more described parameter and described thresholding, if described parameter does not satisfy described threshold requirement, execution in step S404 then.
Determine that according to selected effectiveness parameter corresponding thresholding is the lower limit or the higher limit of this parameter, determine to satisfy condition, for thresholding is the situation of the lower limit of selected effectiveness parameter, if current parameter is less than this thresholding, represent that then this parameter does not satisfy threshold requirement, promptly current state does not satisfy the requirement of customer service type to effectiveness; Otherwise, be the situation of the higher limit of selected effectiveness parameter for thresholding, the decision condition whether its parameter satisfies thresholding is just opposite.
Step S404: upgrade the sir target value, and adjust the SIR of Dedicated Physical Control Channel according to the sir target value after upgrading.
Node B increases current sir target value, and a SIR increment specifically can be set, then Node B will current sir target value be updated to Node B from RNC issue the sir target value obtained and described SIR increment with.Can certainly be provided with one greater than 1 the sir target value factor, when upgrading the sir target value, NodeB is updated to current sir target value that to issue the sir target that obtains the above the sir target value factor on duty from RNC long-pending.Concrete, such as the factor 1.05 that is provided with, it is 4db that Node B issues the sir target value of obtaining from RNC, the sir target value after then Node B upgrades is 4*1.05db, i.e. 4.20db.Upgrading the concrete grammar of sir target value in a word can conveniently select according to reality, only requires that sir target value after satisfy upgrading is slightly larger than to issue the sir target value of obtaining from RNC and get final product.
Node B specifically may further comprise the steps: the current SIR that Node B estimation receives according to the SIR of the sir target value adjustment DPCCH channel after upgrading; More described current SIR of NodeB and described sir target value size, if current SIR is greater than described sir target value, Node B order subscriber equipment reduces transmitting power, if current SIR less than described sir target value, Node B order subscriber equipment improves transmitting power.
Below specifically the bright method of we is made a concrete analysis of with regard to several situations of selected effectiveness parameter.
Embodiment 1:
Be illustrated in figure 5 as the schematic flow sheet of the described method of present embodiment, present embodiment has been chosen ACK and has been indicated number and DTX indicated number purpose ratio value as the effectiveness parameter.At this parameter object of choosing, the concrete implementation step of this method is as described below:
Step S501: thresholding is set.
The actual requirement that is provided with specifically according to the customer service type of this thresholding is provided with, concrete reflection customer service type is to the minimum requirements of the effectiveness of channel, specifically this thresholding is that the customer service type is to ACK indication number and the desired minimum of DTX indicated number purpose ratio value in the present embodiment, requiring ACK indication number and DTX indicated number purpose ratio minimum requirements value such as the customer service type is 90, can be 90 with threshold settings so.The rule of threshold setting is as follows usually: for to the less demanding background service of number of retransmissions, set thresholding can be lower; And for real-time demanding streaming media service, as Online Video or audio service, this kind business is had relatively high expectations to the downstream rate of information, and number of retransmissions can not be too much, otherwise influences user's use experience, then higher thresholding should be set.
Step S502:Node B obtains ACK indication number and DTX indicated number purpose ratio value.
The HSDPCCH frame that Node B sends by the HS-DPCCH channel uplink according to the user, at set intervals, the ACK indication number and the DTX indication number that receive are added up, obtain ACK indication number and DTX indicated number purpose ratio value, this ratio value is represented relative what the relation with DTX indicated number purpose of the ACK indication number of HS-DPCCH transmission, this ratio value is big more, the ACK indication number of then representing to receive in a period of time DTX indication number of receiving that connects is more, re-transmission requires number of times less, and the efficiency of transmission of the signal of channel is higher.
Step S503: the more current ACK indication number and the size of DTX indicated number purpose ratio value and described thresholding.[0]
The ACK that step S502 is obtained indicates number and DTX indicated number purpose ratio value and thresholding to compare.
Step S504: judge comparative result.
According to the thresholding that sets is that the customer service type is set out to the minimum requirements of effectiveness, and the comparative result of step S503 is judged.If ACK indication number and DTX indicated number purpose ratio value are during more than or equal to the thresholding that sets, step S502 is returned in execution, otherwise execution in step S505.
According to the explanation of among the step S502 ACK being indicated number and DTX indicated number purpose ratio value and threshold setting rule, as can be seen when this ratio value during more than or equal to the thresholding that sets, represent that current system SIR satisfies the customer service quality requirement, the signal transmission effect of channel is better, satisfies the requirement of customer service type to effectiveness.
Step S505:Node B upgrades and issues the sir target value of obtaining from RNC.
Node B increases by a SIR increment on the RNC desired value basis that RNC issues, and former sir target value is updated to current sir target value after the increase.
Step S506:Node B adjusts the SIR that receives on the Dedicated Physical Control Channel according to the sir target value after upgrading.
The SIR that the frequent estimation of Node B receives, and itself and current sir target value compared, if the SIR that records is higher than the sir target value, Node B just orders UE to reduce transmitting power; If the SIR that records is lower than the sir target value, then require UE to improve transmitting power, make the SIR that receives converge on current sir target value in a word.Return execution in step S502 after adjusting, continue statistics and obtain current ACK indication number and DTX indicated number purpose ratio value size, and then with the thresholding that sets relatively, if described ratio value is still less than the thresholding of setting, then continue to increase the sir target value, and, adjust the transmitting power of subscriber equipment according to the sir target value of this renewal, can make described ratio value more than or equal to the thresholding that sets up to the SIR of channel.
Embodiment 2:
The present embodiment difference from Example 1 is that present embodiment has selected ACK indication number and NACK indicated number purpose ratio value as the effectiveness parameter.Be illustrated in figure 6 as the schematic flow sheet of the described method of present embodiment, present embodiment said method comprising the steps of:
Step S601: thresholding is set.
The method to set up of thresholding is identical with embodiment 1, all is that the requirement according to customer service is provided with, and for the less demanding business of downstream rate, the thresholding of setting can be lower.For the business that downstream rate is had relatively high expectations, the threshold requirement of setting is higher.Thresholding in the present embodiment specifically is that the customer service type is for ACK indication number and the desired minimum of NACK indicated number purpose ratio value, i.e. lower limit.
Step S602:Node B obtains ACK indication number and NACK indicated number purpose ratio value.
The HS-DPCCH frame that Node B sends by the HS-DPCCH channel uplink according to the user at set intervals, is added up the ACK indication number and the NACK indication number that receive, obtains ACK indication number and NACK indicated number purpose ratio value.This ratio value is represented relative what the relation with DTX indicated number purpose of the ACK indication number of HS-DPCCH transmission, this ratio value is big more, the ACK indication number of then representing to receive in a period of time DTX indication number of receiving that connects is more, re-transmission requires number of times less, and the efficiency of transmission of the signal of channel is higher.
Step S603: the more current ACK indication number and the size of NACK indicated number purpose ratio value and described thresholding.[0]
The ACK that step S602 is obtained indicates number and NACK indicated number purpose ratio value and thresholding to compare.
Step S604: judge comparative result.
According to the thresholding that sets is that the customer service type is set out to the minimum requirements of effectiveness, and the comparative result of step S603 is judged.If ACK indication number and NACK indicated number purpose ratio value during more than or equal to the thresholding that sets, return step S602; Otherwise execution in step S605.According to the explanation of among the step S602 ACK being indicated number and NACK indicated number purpose ratio value and threshold setting rule, when ACK indication number and NACK indicated number purpose ratio value during, represent that current channel SIR satisfies the requirement of customer service type to effectiveness as can be seen more than or equal to the thresholding that sets.
The concrete enforcement of step S605, step S606 and the corresponding steps among the embodiment 1 in like manner all are that the NodeB renewal issues the sir target value of obtaining from RNC, and according to current sir target value, adjust the SIR of DPCCH channel.
Embodiment 3:
Fig. 7 is the schematic flow sheet of the described method of present embodiment.Indicate number and DTX indicated number purpose ratio value because the object of 1 reference of embodiment only is ACK, the relative DTX indicated number of the ACK of statistics indication number purpose how much in reflection a period of time.And embodiment 2 selected references object are the ACK indication numbers and NACK indicated number purpose ratio value that receive, and the relative NACK indicated number of the ACK of statistics indication number purpose how much in reflection a period of time.Yet in the HSDPA channel, DTX indication and NACK indication all cause the mixing of signal to retransmit automatically, therefore embodiment 1, embodiment 2 can only reflect partly that what of number of retransmissions ACK indication number mix relatively, the efficiency of transmission of part reflected signal, fail the effectiveness of whole reflection HSDPA channel, though prior art has obvious improvement from technical concept and implementation result relatively, also fails to reach optimum efficiency.
At above problem, present embodiment is indicated number and DTX indicated number purpose ratio value with ACK, and ACK indication number and NACK indicated number purpose ratio value compare respectively with according to the set thresholding of customer service type requirement all as with reference to object.As long as one of them does not satisfy threshold requirement described two references object, all adjust the sir target value of upgrading the HSDPA channel, and adjust the transmitting power of subscriber equipment according to current sir target value, till the letter SIR of channel can make that two ratio values all satisfy threshold requirement.Its concrete steps are as shown in Figure 7:
Step S701: thresholding is set.
The method to set up of thresholding and embodiment 1,2 are in like manner, according to the requirement of customer service type, obtain of the minimum requirements of customer service type to the effectiveness of channel, specifically be to obtain customer service type each lower limit in the present embodiment, choose wherein bigger lower limit as threshold value to above-mentioned two ratio value requirements.
Step S702:Node B obtains ACK indication number and DTX indicated number purpose ratio value, and ACK indication number and NACK indicated number purpose ratio value.
The HS-DPCCH frame that Node B sends by the HS-DPCCH channel uplink according to the user who receives, each a period of time, the ACK indication number, DTX indication number and the NACK indication number that receive are added up, obtained ACK indication number and NACK indicated number purpose ratio value and ACK indication number and DTX indicated number purpose ratio value respectively.
Step S703: the size of more current respectively ACK indication number and DTX indicated number purpose ratio value and ACK indication number and NACK indicated number purpose ratio value and described thresholding.
Two ratio values that step S702 is obtained compare with the thresholding that sets respectively.
Step S704: judge comparative result.
According to the thresholding that sets is that the customer service type is set out to the minimum requirements of effectiveness, and the comparative result of step S703 is judged.All more than or equal to thresholding, return step S702 up to two ratio values, otherwise, execution in step S705.
Step S705, step S706 and embodiment 1,2 in like manner here no longer are described in detail.
By the detailed description of present embodiment as can be known, present embodiment is chosen ACK indication number and DTX indicated number purpose ratio value and ACK indication number and NACK indicated number purpose ratio value, jointly as the effectiveness parameter, make the how much relative of ACK indication number that described effectiveness parameter reflects the HSDPA channel comprehensively and mixed automatic retransmission time, integral body reflects the effectiveness of HSDPA channel.
The described scheme of employing present embodiment can be so that adjusted SIR can reflect the SIR of HS-DPCCH channel comprehensively, the SIR of channel can satisfy dedicated channel and reach operation quality requirement, the effectiveness that can comprehensively guarantee channel again reaches the customer service demand, avoided because the SIR of channel is not high enough, and cause NACK, ACK and DTX erroneous judgement too much, thereby cause HS-DPCCH channel SIR low excessively, and cause owing to retransmit too much the problem that causes downstream rate not increase.
Embodiment 4:
Fig. 8 is the schematic flow sheet of the described method of present embodiment, what present embodiment and embodiment 1,2 or 3 were different is, present embodiment has selected for use the ratio value of ACK indication number and DTX indication number and NACK indication number sum as the reference object, because DTX indication and NACK indication all cause channel that the mixing of signal is retransmitted automatically, so both sums are represented the signal number of retransmissions in a period of time.Described ratio value promptly is that indication number and the ratio value that mixes number of retransmissions are replied in the acceptance of signal in a period of time, can the whole effectiveness that reflects the HSDPA channel.As shown in Figure 8, this method may further comprise the steps:
Step S801: thresholding is set.
The setting principle of thresholding and the foregoing description are in like manner, all be to require to be provided with according to the customer service type, the thresholding customer service type of this enforcement is the lower limit of the ratio value of ACK indication number and signal number of retransmissions to the minimum requirements of effectiveness.
Step S802:Node B obtains the ratio value of ACK indication number and DTX indication number and NACK indication number sum.
The HS-DPCCH frame that Node B sends by the HS-DPCCH channel uplink according to the user, at set intervals, to the ACK indication number that receives, DTX indication number and NACK indication number are added up, obtain the ratio value of ACK indication number and DTX indication number and NACK indication number sum, relative what the relation of the ACK indication number that this ratio value is represented HS-DPCCH transmission and mixing number of retransmissions, this ratio value is big more, represent that then the ACK indication number that receives in a period of time is many more, the signal number of retransmissions of channel is few more, and the efficiency of transmission of the signal of channel is high more.
Step S803: more current ACK indication number and DTX indication number and the ratio value of NACK indication number sum and the size of described thresholding.
Step S802 ratio value that is obtained and the thresholding that sets are compared.
Step S804: judge comparative result
According to the thresholding that sets is that the customer service type is set out to the minimum requirements of effectiveness, and the comparative result of step S803 is judged.If described ratio value is less than the thresholding that sets, execution in step S805 then; Otherwise return step S802.
The correlation step of step S805, step S806 and top embodiment 1,2,3 is not in like manner made repeated description at this.
By the narration of present embodiment as can be seen, because present embodiment has selected for use the ACK indication number of statistics in a period of time and the ratio value that mixes number of retransmissions as the reference object, this references object can reflect the effectiveness of HSDPA comprehensively.Use this references object to compare with the thresholding that requires to set according to the customer service type, adjust the sir target value of HSDPA channel in real time according to comparative result, and then according to current sir target value adjustment channel SIR, till channel SIR makes that the effectiveness parameter satisfies threshold requirement.
Method of adjustment of the present invention can be guaranteed adjusted channel SIR, can satisfy the quality requirement of dedicated channel service; The SIR situation that can reflect HS-DPCCH has again been slowed down greatly because the SIR of channel is not high enough, and causes judging into ACK by accident DTX or NACK and the problem that causes retransmitting; Avoided owing to the channel number of retransmissions too much causes that downstream rate does not increase, and can not satisfy the problem that customer service requires.
Embodiment 5:
Present embodiment has selected for use the ratio value of ACK indication number and ACK indication number, DTX indication number and NACK indication number sum as the reference object, this ratio value has specifically represented ACK indication number in all users shared ratio in the sum of the affirmation information that Node B feedback data receives, the effectiveness of whole reflection HSDPA channel.As shown in Figure 9, the concrete steps of present embodiment are as follows:
Step S901: thresholding is set.
The setting principle of thresholding and top embodiment are in like manner, set threshold value requires to reflect the minimum requirements of customer service type for effectiveness equally, specifically is the lower limit of the ACK indication number proportion in the affirmation information total number of all Data Receiving in a period of time in the present embodiment.
Step S902:Node B obtains the ratio value of ACK indication number and ACK indication number, DTX indication number and NACK indication number sum.
The HS-DPCCH frame that Node B sends by the HS-DPCCH channel uplink according to the user, at set intervals, ACK indication number, all users that receive are added up to the summation of the affirmation information number that Node B feedback data receives, obtain the ratio value of ACK indication number and ACK indication number, DTX indication number and NACK indication number sum, this ratio value is big more, represent that then the ACK indication number that receives in a period of time is many more, the signal number of retransmissions of channel is few more, and the efficiency of transmission of the signal of channel is high more.
Step S903: more current ACK indication number and ACK indication number, DTX indication number and the ratio value of NACK indication number sum and the size of described thresholding.
Step S902 ratio value that is obtained and the thresholding that sets are compared.
Step S904: judge comparative result
According to the thresholding that sets is that the customer service type is set out to the minimum requirements of effectiveness, and the comparative result of step S903 is judged.If described ratio value is less than the thresholding that sets, execution in step S905 then; Otherwise return step S902.
The correlation step of step S905, step S906 and top embodiment 1,2,3,4 is not in like manner made repeated description at this.
Because present embodiment has been chosen the ratio value of ACK indication number and ACK indication number, DTX indication number and NACK indication number sum, it is ACK indication number and shared ratio in the summation of the affirmation information number of the Data Receiving of all user feedbacks, this ratio value integral body has reflected the efficiency of transmission of signal in channel, therefore uses this parameter can make adjusted SIR can satisfy the quality requirement of dedicated channel service as adjusting references object; The SIR situation that can reflect HS-DPCCH has again been slowed down greatly because the SIR of channel is not high enough, and causes judging into ACK by accident DTX or NACK and the problem that causes retransmitting; Avoided owing to the channel number of retransmissions too much causes that downstream rate does not increase, and can not satisfy the problem that customer service requires.
More than the regulation method of SIR of a kind of special used for physical control channel DPCCH provided by the present invention is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1, a kind of regulation method of SIR of special used for physical control channel DPCCH may further comprise the steps:
A, choose the effectiveness parameter of channel, and according to the default thresholding of described parameter, the effectiveness in the described efficiency of transmission parameter reflection channel;
B, obtain described parameter;
The size of C, more described parameter and described thresholding, if described parameter does not satisfy described threshold requirement, execution in step D then;
D, upgrade the signal interference ratio desired value, and adjust the signal interference ratio of Dedicated Physical Control Channel according to the signal interference ratio desired value after upgrading.
2, the regulation method of SIR of special used for physical control channel DPCCH according to claim 1, it is characterized in that: the effectiveness parameter of choosing channel described in the steps A specifically: choose the ratio value of user between the statistics numbers of each confirmation of Node B feedback as described effectiveness parameter, described each confirmation is indicated described user's data reception condition.
3, the regulation method of SIR of special used for physical control channel DPCCH according to claim 2, it is characterized in that: choose ACK indication number and DTX indicated number purpose ratio value as described effectiveness parameter, perhaps, choose the ratio value of ACK indication number and ACK indication number and DTX indication number sum as described effectiveness parameter.
4, the regulation method of SIR of special used for physical control channel DPCCH according to claim 2, it is characterized in that: choose ACK indication number and NACK indicated number purpose ratio value as described effectiveness parameter, perhaps, choose the ratio value of ACK indication number and ACK indication number and NACK indication number sum as described effectiveness parameter.
5, the regulation method of SIR of special used for physical control channel DPCCH according to claim 2 is characterized in that: the ratio value of choosing ACK indication number and NACK indication number and DTX indication number sum is as described effectiveness parameter.
6, the regulation method of SIR of special used for physical control channel DPCCH according to claim 2 is characterized in that: the ratio value of choosing ACK indication number and ACK indication number, NACK indication number and DTX indication number sum is as described effectiveness parameter.
7, according to the regulation method of SIR of one of them described special used for physical control channel DPCCH of claim 1 to 6, it is characterized in that: being provided with specifically of thresholding described in the steps A also requires to be provided with according to actual user's type of service, requires set thresholding to reflect the minimum requirements of described customer service type for described effectiveness.
8, according to the regulation method of SIR of one of them described special used for physical control channel DPCCH of claim 1 to 6, it is characterized in that: described step B specifically: Node B is according to the HSDPCCH frame that receives, user in the frame is carried out statistical analysis to the affirmation information of Node B feedback data reception obtain, wherein said confirmation comprises ACK indication, NACK indication and DTX indication.
9, according to the regulation method of SIR of one of them described special used for physical control channel DPCCH of claim 1 to 6, it is characterized in that: the renewal of the signal interference ratio desired value described in the step D specifically may further comprise the steps:
D1, a signal interference ratio increment is set;
D2, Node B with current signal interference ratio desired value be updated to Node B from RNC issue the signal interference ratio desired value obtained and described signal interference ratio increment and.
10, according to the regulation method of SIR of one of them described special used for physical control channel DPCCH of claim 1 to 6, it is characterized in that: the signal interference ratio that the signal interference ratio desired value according to after upgrading described in the step D is adjusted Dedicated Physical Control Channel specifically may further comprise the steps:
The current signal interference ratio that D3, Node B estimation receives;
D4, more described current signal interference ratio and described signal interference ratio desired value size, if current signal interference ratio greater than described signal interference ratio desired value, execution in step D5 then is if current signal interference ratio is less than described signal interference ratio desired value, execution in step D6;
D5, Node B order subscriber equipment reduces transmitting power;
D6, Node B order subscriber equipment improves transmitting power.
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| JP2011223274A (en) * | 2010-04-08 | 2011-11-04 | Sony Corp | Transmission device and transmission method |
| CN102300255A (en) * | 2010-06-23 | 2011-12-28 | 中兴通讯股份有限公司 | Method and device for optimizing packet transmission in wireless network |
| CN103118422B (en) * | 2011-11-16 | 2018-02-23 | 亚太卫星宽带通信（深圳）有限公司 | A kind of ascending power control method, device, base station and system |
| CN108616972B (en) * | 2017-02-08 | 2022-11-01 | 深圳市中兴通讯技术服务有限责任公司 | Method and equipment for distributing power of downlink control channel |
| CN107659987B (en) | 2017-09-18 | 2021-06-08 | 捷开通讯(深圳)有限公司 | Method for adjusting terminal transmitting power, mobile terminal and storage device |
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