CN102246567A - Method, apparatus and radio network controller for outer loop power control processing - Google Patents
Method, apparatus and radio network controller for outer loop power control processing Download PDFInfo
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- CN102246567A CN102246567A CN2011800011138A CN201180001113A CN102246567A CN 102246567 A CN102246567 A CN 102246567A CN 2011800011138 A CN2011800011138 A CN 2011800011138A CN 201180001113 A CN201180001113 A CN 201180001113A CN 102246567 A CN102246567 A CN 102246567A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/12—Outer and inner loops
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/16—Deriving transmission power values from another channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
Abstract
A method, apparatus and radio network controller for outer loop power control processing are provided by the embodiments of the present invention. The method includes the following steps: if the transmission power of a terminal is limited, the maximum target value A of Dedicated Physical Control Channel (DPCCH) Signal Interference Ratio (SIR) is adjusted to B, wherein B is greater or equals to the initial target value of DPCCH SIR and is less than A; and the adjusted maximum target value of DPCCH SIR is transmitted to a base station. In the embodiments of the present invention, the maximum target value of DPCCH SIR is reduced to the initial target value of DPCCH SIR when the transmission power of a terminal is limited, and thus the dynamic range of the DPCCH SIR is reduced, so that the power proportion of the control channel is reduced, thereby the power proportion of the data channel is increased, the data transmission can be continued and the cell coverage is increased.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of exterior ring power control and treatment method, device and radio network controller.
Background technology
CDMA (Code Divided Multiple Access, code division multiple access) is a kind of spread spectrum technic.Cdma system is one and disturbs system certainly that all mobile subscribers take same band and frequency, and exist nonideal correlation properties between the employed spreading code of each user.For example " near-far interference " problem is outstanding especially, so the big young pathbreaker of user emission power directly influences the total capacity of system, thereby makes power control techniques become one of of paramount importance core technology in the cdma system.Wherein, near-far interference is: when the base station receive two simultaneously distance be different but terminal that power is identical (User Equipment abbreviates as: during the signal UE) sent, the UE near apart from the base station will produce serious disturbance to the signal of another UE.
One of target of power control is under the prerequisite that guarantees user communication quality in the cdma system, makes the transmitting power of UE as far as possible little.Transmitting power by making UE is as far as possible little, can reduce to disturb, thereby increase the capacity of cdma system.
Power control can be divided into uplink power control and descending power control by direction; Uplink power control can be controlled the transmitting power of UE, and descending power control can be controlled the transmitting power of base station.Whether power control participates in being divided into open Loop Power control and closed power control by UE and base station (NodeB) simultaneously.What UE and NodeB participated in simultaneously is that closed power is controlled.Closed power control is used to overcome path loss, rapid fading and slow fading; (Signal Interference Ratio abbreviates as: measurement estimated value SIR) and DPCCH signal interference ratio desired value (SIR by DPCCH (Dedicated Physical Control Channel, Dedicated Physical Control Channel) signal interference ratio in closed power control
Target) contrast, determine through-put power control (Transmit Power Control, TPC) command word is sent to UE to the TPC command word by channel then, UE regulates the size of the transmitting power of oneself according to the TPC command word.
Closed power control can be divided into inner loop power control and exterior ring power control again; (Outer Loop Power Control, mechanism OLPC) is: the desired value of ring control in adjusting according to the quality of communication makes system can satisfy the requirement of communication quality all the time with minimal power in exterior ring power control.Fig. 1 is the schematic diagram of existing uplink power control.As shown in Figure 1, in the uplink power control process, the power between NodeB and the UE is controlled to be inner loop power control, and the power between RNC (Radio Network Controller, radio network controller) and the NodeB is controlled to be exterior ring power control.
Yet in the outer shroud power control process, when the transmit power limited of UE, the sir target value of DPCCH can promote always, thereby it is excessive to cause data channel power to descend, and causes the sub-district to cover variation at last.
Summary of the invention
The embodiment of the invention provides a kind of exterior ring power control and treatment method, device and radio network controller, covers to increase the sub-district by exterior ring power control.
The embodiment of the invention provides a kind of exterior ring power control and treatment method, comprising:
When the transmit power limited of terminal, the numerical value of maximum DPCCH sir target value is adjusted into B by A, described B is more than or equal to the numerical value of initial DPCCH sir target value, and described B is less than described A;
Adjusted maximum DPCCH sir target value is sent to the base station.
The embodiment of the invention provides a kind of exterior ring power control and treatment device, comprising:
First adjusting module when being used for the transmit power limited when terminal, is adjusted into B with the numerical value of maximum DPCCH sir target value by A, and described B is more than or equal to the numerical value of initial DPCCH sir target value, and described B is less than described A;
Sending module is used for the maximum DPCCH sir target value of the described first adjusting module adjustment is sent to the base station.
The embodiment of the invention provides a kind of radio network controller, comprises arbitrary exterior ring power control and treatment device that the embodiment of the invention provides.
Exterior ring power control and treatment method, device and the radio network controller of the embodiment of the invention, radio network controller is when determining the transmit power limited of UE, adjust the numerical value of maximum DPCCH sir target value, the numerical value of maximum DPCCH sir target value is reduced, and adjusted maximum DPCCH sir target value is sent to the base station.In the embodiment of the invention, when the transmit power limited of UE, maximum DPCCH sir target value is reduced to initial DPCCH sir target value, can reduce the dynamic range of DPCCH SIR, make the power proportions of control channel reduce, thereby can improve the power proportions of data channel, make transfer of data be continued, and increase the sub-district covering.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of existing uplink power control;
The flow chart of the exterior ring power control and treatment method that Fig. 2 provides for one embodiment of the invention;
The flow chart of the exterior ring power control and treatment method that Fig. 3 provides for another embodiment of the present invention;
The flow chart of the exterior ring power control and treatment method that Fig. 4 provides for yet another embodiment of the invention;
The exterior ring power control and treatment schematic representation of apparatus that Fig. 5 provides for one embodiment of the invention;
The exterior ring power control and treatment schematic representation of apparatus that Fig. 6 provides for another embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The parameter that relates in the exterior ring power controlling mechanism comprises: initial DPCCH sir target value, maximum DPCCH sir target value and minimum DPCCH sir target value.Wherein, initial DPCCH sir target value is provided with according to typical environment, for example, is disposed to NodeB by RNC when setting up or reshuffling at RL (Radio Link, Radio Link); Maximum DPCCH sir target value is the maximum that DPCCH sir target value can be adjusted to, and is used to prevent that DPCCH sir target value from being adjusted to very big value unusually, and it is excessive to cause the power of DPCCH channel to take, and influences transfer of data; Minimum DPCCH sir target value is the minimum value that DPCCH sir target value can be adjusted to, and is used to prevent that DPCCH sir target value is adjusted to very little value, if DPCCH sir target value is adjusted to very little value unusually, then causes problems such as call drop easily.
The inventor finds, in the outer shroud power control process, when the transmit power limited of UE, the sir target value of DPCCH can rise to till the maximum DPCCH sir target value always, because maximum DPCCHSIR desired value is bigger usually, therefore it is excessive to cause data channel power to descend, and causes the sub-district to cover variation at last.
The flow chart of the exterior ring power control and treatment method that Fig. 2 provides for one embodiment of the invention, as shown in Figure 2, this method comprises:
The executive agent of present embodiment can be RNC, or other net control devices.
When the transmit power limited of UE, UE can report to base station or RNC.When the base station receive UE on give the correct time, the base station can report RNC with the situation of UE transmit power limited.Whether limited RNC can get access to UE transmitting power situation thus.Wherein, when the transmitting power of UE when a Preset Time all reaches the higher limit of transmitting power, the transmit power limited of this UE.
When RNC determines the transmit power limited of UE, RNC turns down maximum DPCCH sir target value, the numerical value of this maximum DPCCH sir target value is adjusted into numerical value more than or equal to initial DPCCH sir target value, be understandable that this adjusted numerical value is less than the numerical value A of former maximum DPCCH sir target value.
The embodiment of the invention is when the UE transmit power limited, maximum DPCCH sir target value is reduced, can reduce the dynamic range of DPCCH SIR, make the power proportions of control channel reduce, thereby can improve the power proportions of data channel, make transfer of data be continued, and increase the sub-district covering.
In another embodiment respectively with HSUPA (High Speed Uplink Packet Access, high speed uplink packet inserts) situation during user and R99 user's transmit power limited is that example describes, and to be adjusted into the numerical value that equals initial DPCCH sir target value with the numerical value with maximum DPCCH sir target value be that example describes.Be understandable that, when the numerical value of maximum DPCCH sir target value is reduced to other numerical value, can improve the power proportions of data channel equally, make transfer of data be continued, increase the sub-district and cover in the UE transmit power limited.
When HSUPA user's transmit power limited, UE (this HSUPA user) does not have transmission power, E-TFCI (the E-DCH Transport Format Combination Indicator that selects of UE then, enhancing dedicated channel transport format combined indication character) size of corresponding data block can reduce, if UE has disposed the minimum value of E-TFCI, after then the E-TFCI that UE selects during transmit power limited is reduced to the minimum value of configuration, will no longer reduce.Be understandable that E-TFCI is used to indicate the size of corresponding data block, the required transmitting power of bigger data block is bigger.If after the E-TFCI that UE selects is reduced to the minimum value of configuration, the transmitting power of UE continues limited, and total transmitting power of UE (all channel transmitting power) has surpassed maximum transmission power when selecting this E-TFCI, then UE can reduce the β ed/ β c (data channel gain factor) of this E-TFCI correspondence, promptly reduce EDPDCH (Enhanced Dedicated Physical Data Channel, strengthen Dedicated Physical Data Channel) PO (power Offset, power bias); And EDPDCH PO reduce to cause HARQ (Hybrid Automatic Repeat Request, mix automatic repeat requests) number of retransmissions (Number of HARQ Retransmission, abbreviate as: NHR) become big, NHR becomes conference and causes DPCCH sir target value to become big, DPCCH sir target value becomes conference and causes the DPCCH transmitting power to become big, and the change of DPCCH transmitting power can cause EDPDCH PO to reduce greatly, forms vicious circle thus.And compare with the mean value of actual NHR hour at target NHR, the characteristics that DPCCH sir target value has fast liter to fall slowly, will soon be raised to maximum DPCCH sir target value, then maximum DPCCH sir target value is the situation of 14dB, be made as initial DPCCH sir target value (being generally 8dB) with respect to maximum DPCCH sir target value, the easier vanishing of EDPDCH PO (, HS-DPCCH PO constant because of EDPCCH PO is constant, total, and transmitting power is constant), the easier termination of transfer of data, easier call drop.And maximum DPCCH sir target value is set to initial DPCCH sir target value (for example being 8dB), comparatively speaking, can reduce the occupation proportion of DPCCH in the total transmitting power of UE, improve the power proportions of data channel, just make transfer of data obtain continuing, covering is enhanced, and can bring bigger gain.In case and user's transmitting power becomes not limitedly from limited, so maximum DPCCH sir target value is recovered (for example being 11dB or 14dB), is understandable that the span of this maximum DPCCH sir target value can be with reference to the regulation of agreement.Thus, when user's transmit power limited,, for example be made as initial DPCCH sir target value (for example being 8dB), can improve user's throughput, increase the sub-district and cover user's maximum DPCCH sir target value reduction.Wherein, the span of maximum DPCCH sir target value and initial DPCCH sir target value is-8.2～17.3dB (referring to agreement 25.214), maximum DPCCH sir target value is greater than initial DPCCHSIR desired value, and concrete value can dispose according to actual conditions.
Transmit power limited as R99 user, the Block Error Rate of transfer of data (Block Error Rate, abbreviate as: BLER) will rise, OLPC will raise DPCCH sir target value, and hour at target BLER, the characteristics that DPCCH sir target value has fast liter to fall slowly, will soon be raised to maximum DPCCH sir target value, maximum thus DPCCH sir target value is that initial DPCCH sir target value adds default value (3dB for example, can be referring to regulation of the prior art) situation, be made as the situation of initial DPCCH sir target value with respect to maximum DPCCH sir target value, the transmitting power that DPCCH takies is bigger, can cause the available horsepower of DPDCH to reduce the easier termination of transfer of data, easier call drop thus.Be set to initial DPCCH sir target value and work as maximum DPCCH sir target value, comparatively speaking, can reduce the occupation proportion of DPCCH in the total transmitting power of UE, improve the power proportions of data channel, improve user's throughput, increase cell capacity.In case and user's transmitting power becomes not limitedly from limited, recovers maximum DPCCH sir target value so.
The embodiment of the invention, RNC adjusts the numerical value of maximum DPCCH sir target value when determining the transmit power limited of UE, the numerical value of maximum DPCCH sir target value is reduced, and adjusted maximum DPCCH sir target value is sent to the base station.In the embodiment of the invention, when the transmit power limited of UE, maximum DPCCH sir target value is reduced, can reduce the dynamic range of DPCCH SIR, make the power proportions of control channel reduce, thereby can improve the power proportions of data channel, make transfer of data be continued, and increase the sub-district covering.
The flow chart of the exterior ring power control and treatment method that Fig. 3 provides for another embodiment of the present invention, as shown in Figure 3, this method comprises:
The executive agent of present embodiment can be RNC.Wherein, RNC obtains the transmitting power of UE whether limited mode can comprise:
First kind of mode: if RNC receives first limited message that UE reports, then RNC obtains the transmit power limited of UE.Concrete, when the transmit power limited of UE, UE can report limited message to base station or RNC.When UE when the base station reports limited message, the base station can report RNC with the power limited situation of UE.For example: the transmitting power of measuring as UE can report the 6A incident to RNC when continuing for some time and being higher than a thresholding (this thresholding is the upper limit of transmitting power), and is limited to represent this UE current power.The transmitting power of measuring as UE then can report the 6B incident to RNC when continuing for some time and being lower than a thresholding, represents the current power of this UE not limited (referring to agreement 25.331).
The second way: if RNC receives second limited message that is used to represent the UE transmit power limited that the base station reports, then RNC obtains the transmit power limited of UE.For example: the UPH that the base station reports according to UE (UE transmission Power Headroom, UE transmitting power free space) measured value, know the transmitting power size of UE current residual, transmitting power size with the UE current residual compares with maximum transmission power then, obtain the transmitting power size of the current use of UE, and then the transmitting power of the current use of UE size compared with the predetermined electric power thresholding, if this transmitting power greater than the upper limit of predetermined electric power thresholding or this transmitting power lower limit less than the predetermined electric power thresholding, then can obtain the transmit power limited of UE; If the base station obtains the transmit power limited of UE, then the base station reports RNC by second limited message.
After RNC adjusts the numerical value of maximum DPCCH sir target value in step 301, if getting access to the transmitting power of UE, RNC recovers normal, be that RNC determines that the transmitting power of UE is not limited, then RNC recovers maximum DPCCH sir target value again, and the maximum DPCCH sir target value that will recover sends to the base station, so that inner loop power control is carried out according to the maximum DPCCH sir target value of recovering in the base station.Need to prove, the transmitting power of determining UE at RNC is not limited, when maximum DPCCH sir target value is recovered, maximum DPCCH sir target value can be adjusted into A, also can obtain for example C of a new value, then maximum DPCCH sir target value is adjusted into C according to channel circumstance; Wherein C is greater than B.
In addition, in the existing exterior ring power control procedure, at QoS (Quality of Service, service quality) parameter convergence is in the process of desired value, cause time delay big or low for fear of the mistake piece occurring for fear of converging power, usually higher DPCCH sir target value all is set, causes the waste of power resource thus.And present embodiment can reduce the time of higher DPCCH sir target value in order to improve the power resource utilance as far as possible after qos parameter converges on desired value.Thus, present embodiment can also may further comprise the steps:
Concrete, it can be to occur in radio bearer (Radio Bearer abbreviates as: RB) set up when finishing that qos parameter converges on desired value, wherein, this RB sets up to be in and connects the scene of setting up, and also can be in the scene of reconstruction, and the embodiment of the invention does not limit.That is to say that when RB foundation was finished, qos parameter converged on desired value, adjusted DPCCH sir target value according to first step-length.
Wherein, qos parameter comprises: (Bit Error Rate abbreviates as: BER), (Fame Error Rate abbreviates as frame error rate: FER) or NHR for BLER, the error rate.Parameters such as BLER, the error rate or frame error rate can be applied in R99 (a kind of protocol version) system; NHR can be applied in the HSUPA system.
In this step, after qos parameter converged on desired value, RNC reduced current DPCCH sir target value with a bigger step-length, current DPCCH sir target value is reduced faster, up to DPCCH sir target value is dropped to a predetermined threshold value.Wherein, this predetermined threshold value can be the average of channel circumstance DPCCH sir target value when better.Thus, can improve power efficiency and throughput, improve the power resource utilance.
After RNC drops to predetermined threshold value with DPCCH sir target value, RNC is adjusted into second step-length with the step-length of DPCCH sir target value, wherein second step-length is littler than first step-length, that is to say, shorten the step-length that DPCCH sir target value descends, the speed that makes DPCCH sir target value descend is slack-off.In the process that RNC turns down DPCCH sir target value, RNC sends the DPCCHSIR desired value to the base station periodically, and wherein this cycle is a preset period.
Wherein, in exterior ring power control, RNC can determine the DPCCHSIR desired value according to service quality (QoS), makes the base station encircle control in adjusting according to this DPCCH sir target value, makes UE can satisfy the requirement of communication quality all the time with minimal power.Wherein QoS can comprise: the BLER of received signal, the error rate or frame error rate.For example, RNC according to the formula that the BLER measured value calculates the adjustment amount of DPCCH sir target value is:
Thus, when the step-length (SIR adjusts step-length) that descends being transferred when big, DPCCH sir target value just descend comparatively fast.Wherein the concrete data of first step-length and second step-length can dispose as the case may be.
The embodiment of the invention, except having beneficial effect embodiment illustrated in fig. 2, can also be after qos parameter converge to desired value, reduce time of higher DPCCH sir target value by strengthening the step-length that descends as far as possible, can improve power efficiency and throughput thus.
In the existing exterior ring power control procedure, receive a mistake piece at RNC, will improve the DPCCHSIR desired value, thus, when continuous mistake piece occurring owing to serious interference, DPCCH sir target value can rise, and causes the waste of power resource thus.In order to address this problem, the embodiment of the invention provides scheme shown in Figure 4.
The flow chart of the exterior ring power control and treatment method that Fig. 4 provides for yet another embodiment of the invention, as shown in Figure 4, present embodiment can also may further comprise the steps on Fig. 2 or basis embodiment illustrated in fig. 3:
When step 401, RNC receive the mistake piece reporting message of that the base station reports, k mistake piece being used to represent that UE sends at moment t, RNC adjustment DPCCH sir target value.Be understandable that adjusted DPCCH sir target value sends to the base station according to preset period, and how to send to the regulation that agreement can be followed in the base station about the DPCCHSIR desired value, the present invention does not do further qualification to this.
In step 402, the Preset Time section after moment t, receive k+m that the base station reports, as to be used to represent UE transmission mistake piece reporting message that misses piece, then keep DPCCH sir target value constant as if RNC; Wherein, m is the constant more than or equal to 1, and m is configurable.That is, in the Preset Time section after moment t,, also do not adjust DPCCH sir target value, but maintenance DPCCH sir target value is constant even that RNC receives is that the base station reports, the mistake piece reporting message of k+m mistake piece being used to represent that UE sends.
Concrete, step 401-step 402 can for: at a time t receives mistake during piece, RNC heightens DPCCH sir target value, and in the Preset Time section after this moment t, if receive the mistake piece again, show that then serious the interference appears in system, at this moment, RNC does not just adjust DPCCH sir target value; When through after this Preset Time section,, do not think that then this moment, serious the interference appearred in system, so just can adjust DPCCH sir target value this moment if receive the mistake piece again.
The embodiment of the invention except having beneficial effect embodiment illustrated in fig. 2, can also not adjusted DPCCH sir target value when receiving the mistake piece continuously owing to seriously disturb, can improve the utilance of power resource thus.
The exterior ring power control and treatment schematic representation of apparatus that Fig. 5 provides for one embodiment of the invention, as shown in Figure 5, this device comprises: first adjusting module 51 and sending module 53.
First adjusting module 51 is used for when the transmit power limited of terminal, and the numerical value of maximum DPCCH sir target value is adjusted into B by A, and B is more than or equal to the numerical value of initial DPCCH sir target value, and B is less than A.
Sending module 53 is used for the maximum DPCCH sir target value that first adjusting module 51 is adjusted is sent to the base station.
The exterior ring power control and treatment device that present embodiment provides is used to realize method embodiment shown in Figure 2.The workflow of each module and operation principle do not repeat them here referring to the description among the above-mentioned method embodiment shown in Figure 2 in the present embodiment.
The embodiment of the invention, first adjusting module is when determining the transmit power limited of UE, adjust the numerical value of maximum DPCCH sir target value, the numerical value of maximum DPCCH sir target value is reduced, and adjusted maximum DPCCH sir target value is sent to the base station by sending module.In the embodiment of the invention, when the transmit power limited of UE, maximum DPCCH sir target value is reduced, can reduce the dynamic range of DPCCH SIR, make the power proportions of control channel reduce, thereby can improve the power proportions of data channel, make transfer of data be continued, and increase the sub-district covering.
The exterior ring power control and treatment schematic representation of apparatus that Fig. 6 provides for another embodiment of the present invention, on basis embodiment illustrated in fig. 5, as shown in Figure 6, this device can also comprise: second adjusting module 55.
Further, this device can also comprise: the first step-length adjusting module 57 and the second step-length adjusting module 59; Perhaps, this device can also comprise: the 3rd adjusting module 50 and maintenance module 52.
The first step-length adjusting module 57 is used for after qos parameter converges on desired value, adjusts DPCCH sir target value according to first step-length, drops to predetermined threshold value until DPCCH sir target value.
The second step-length adjusting module 59 is used for after the first step-length adjusting module 57 is adjusted to predetermined threshold value with DPCCH sir target value, adjusts DPCCH sir target value with second step-length; The first step is grown up in second step-length.
The 3rd adjusting module 50 be used for moment t receive that the base station reports, when being used to represent the mistake piece reporting message of k the mistake piece that terminal sends, adjustment DPCCH sir target value.
Keep module 52 to be used in the Preset Time section moment t after, if receive that the base station reports, be used to k+m mistake piece reporting message that misses piece representing that terminal sends, then keep DPCCH sir target value constant; Wherein, m is the constant more than or equal to 1.
The exterior ring power control and treatment device that present embodiment provides is used to realize Fig. 2-method embodiment shown in Figure 4.The workflow of each module and operation principle do not repeat them here referring to the description among the method embodiment of above-mentioned Fig. 2-shown in Figure 4 in the present embodiment.
The embodiment of the invention, except having beneficial effect embodiment illustrated in fig. 5, can also be after qos parameter converges to desired value, strengthen the time that the step-length that descends reduces higher DPCCH sir target value as far as possible by the first step-length adjusting module, can improve power efficiency and throughput thus; And can when receiving the mistake piece continuously, not adjust the DPCCHSIR desired value by stopping adjusting module owing to seriously disturb, can improve the utilance of power resource thus.
The embodiment of the invention also provides a kind of radio network controller, and this radio network controller comprises Fig. 5 or exterior ring power control and treatment device shown in Figure 6.
The workflow of each module and operation principle do not repeat them here referring to the description among the method embodiment of above-mentioned Fig. 2-shown in Figure 4 in the present embodiment.
The embodiment of the invention, when the transmit power limited of UE, radio network controller reduces maximum DPCCHSIR desired value, can reduce the dynamic range of DPCCH SIR, make the power proportions of control channel reduce, thereby can improve the power proportions of data channel, make transfer of data be continued, and increase the sub-district covering; This radio network controller can also be after qos parameter converges to desired value, reduces time of higher DPCCH sir target value by strengthening the step-length that descends as far as possible, can improve power efficiency and throughput thus; And this radio network controller can also by not adjusting DPCCH sir target value, can improve the utilance of power resource thus when receiving the mistake piece continuously owing to seriously disturb.
Need to prove that various embodiments of the present invention can be applied in cdma system or the WCDMA system ascending power be controlled.One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; Aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (11)
1. an exterior ring power control and treatment method is characterized in that, comprising:
When the transmit power limited of terminal, the numerical value of maximum special used for physical control channel DPCCH signal interference ratio sir target value is adjusted into B by A, described B is more than or equal to the numerical value of initial DPCCH sir target value, and described B is less than described A;
Adjusted maximum DPCCH sir target value is sent to the base station.
2. method according to claim 1 is characterized in that, also comprises:
After the numerical value with described maximum DPCCH sir target value is adjusted into described B by described A, when the transmitting power of described terminal is not limited, the numerical value of described maximum DPCCH sir target value is adjusted into described A, and adjusted maximum DPCCH sir target value is sent to described base station.
3. method according to claim 1 and 2 is characterized in that, also comprises:
When service quality QoS parameter converges on desired value, adjust DPCCH sir target value according to first step-length, drop to predetermined threshold value until described DPCCH sir target value;
After described DPCCH sir target value drops to predetermined threshold value, adjust described DPCCH sir target value with second step-length, the described first step is grown up in described second step-length.
4. method according to claim 3 is characterized in that, described qos parameter converges on desired value and comprises: radio bearer is set up and is finished.
5. method according to claim 3 is characterized in that, described qos parameter comprises: Block Error Rate, the error rate, frame error rate or mix automatic repeat requests HARQ number of retransmissions.
6. according to each described method among the claim 1-5, it is characterized in that, also comprise:
Moment t receive that described base station reports, when being used to represent described terminal sends k mistake piece reporting message that misses piece, adjust described DPCCH sir target value;
In the Preset Time section after described moment t, if receive k+m that described base station reports, as to be used to represent described terminal transmission mistake piece reporting message that misses piece, keep described DPCCH sir target value constant, wherein, m is the constant more than or equal to 1.
7. an exterior ring power control and treatment device is characterized in that, comprising:
First adjusting module when being used for the transmit power limited when terminal, is adjusted into B with the numerical value of maximum special used for physical control channel DPCCH signal interference ratio sir target value by A, and described B is more than or equal to the numerical value of initial DPCCH sir target value, and described B is less than described A;
Sending module is used for the described maximum DPCCH sir target value of the described first adjusting module adjustment is sent to the base station.
8. device according to claim 7 is characterized in that, also comprises:
Second adjusting module, be used for after described first adjusting module is adjusted into described B with the numerical value of described maximum DPCCH sir target value by described A, when the transmitting power of described terminal is not limited, the numerical value of described maximum DPCCH sir target value is adjusted into described A, and adjusted maximum DPCCHSIR desired value is sent to described base station.
9. according to claim 7 or 8 described devices, it is characterized in that, also comprise:
The first step-length adjusting module is used for after service quality QoS parameter converges on desired value, adjusts DPCCH sir target value according to first step-length, drops to predetermined threshold value until described DPCCH sir target value;
The second step-length adjusting module is used for adjusting described DPCCH sir target value with second step-length after the described first step-length adjusting module drops to predetermined threshold value with described DPCCH sir target value, and the described first step is grown up in described second step-length.
10. according to each described device among the claim 7-9, it is characterized in that, also comprise:
The 3rd adjusting module, be used for moment t receive that described base station reports, when being used to represent described terminal sends k mistake piece reporting message that misses piece, adjust described DPCCH sir target value;
Keep module, be used in the Preset Time section after described moment t,, keep described DPCCH sir target value constant if receive k+m that described base station reports, as to be used to represent described terminal transmission mistake piece reporting message that misses piece, wherein, m is the constant more than or equal to 1.
11. a radio network controller comprises each described exterior ring power control and treatment device as claim 7-10.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/072676 WO2011100912A2 (en) | 2011-04-12 | 2011-04-12 | Method, apparatus and radio network controller for outer loop power control processing |
Publications (2)
| Publication Number | Publication Date |
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| CN102246567A true CN102246567A (en) | 2011-11-16 |
| CN102246567B CN102246567B (en) | 2013-10-09 |
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| CN2011800011138A Active CN102246567B (en) | 2011-04-12 | 2011-04-12 | Method, apparatus and radio network controller for outer loop power control processing |
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| Country | Link |
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| CN (1) | CN102246567B (en) |
| WO (1) | WO2011100912A2 (en) |
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| CN107529216A (en) * | 2016-06-20 | 2017-12-29 | 中兴通讯股份有限公司 | Channel power method of adjustment and system |
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Also Published As
| Publication number | Publication date |
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| WO2011100912A2 (en) | 2011-08-25 |
| CN102246567B (en) | 2013-10-09 |
| WO2011100912A3 (en) | 2012-03-15 |
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