CN103200664A - Power control method, device and user equipment of control channel high-speed sharing - Google Patents
Power control method, device and user equipment of control channel high-speed sharing Download PDFInfo
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- CN103200664A CN103200664A CN2012100057886A CN201210005788A CN103200664A CN 103200664 A CN103200664 A CN 103200664A CN 2012100057886 A CN2012100057886 A CN 2012100057886A CN 201210005788 A CN201210005788 A CN 201210005788A CN 103200664 A CN103200664 A CN 103200664A
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Abstract
The invention provides a power control method, a device and user equipment of control channel high-speed sharing. The power control method comprises the following steps of receiving an HS-SCCH and decoding, counting a first quantity of HS-SCCHs which are incorrectly decoded continuously when the HS-SCCH received currently is decoded incorrectly, judging whether the first quantity reaches a preset first threshold, obtaining a first judgment result, judging whether a downlink A-DPCH of the user equipment exists currently when the first judgment result indicates that the first quantity reaches the first threshold, obtaining a second judgment result, and increasing a target value used for HS-SCCH inner ring power control when the second judgment result indicates that the downlink A-DPCH exists. The power control method, the device and the user equipment can achieve power control of control channel high-speed sharing.
Description
Technical field
The present invention relates to wireless communication technology field, be specifically related to a kind of Poewr control method, device and subscriber equipment of High-Speed Shared Control Channel.
Background technology
For (the Time Division Duplex of the time division duplex in the 3G (Third Generation) Moblie, TDD) system, TD SDMA (TD-SCDMA for example, Time Division-Synchronous Code Division Multiple Access) system, support high speed downlink packet to insert (HSDPA, High Speed Downlink Packages Access) business is the key character of third generation partner program (3GPP, 3rd Generation Partnership Project) version 5.
In the HSDPA system, high-speed downlink shared channel (HS-DSCH, High-Speed Downlink Shared Channel) channel mainly carries high-speed data service; At a high speed shared information control channel (HS-SICH, High-Speed Shared Information Channel) channel is mainly to base station feedback CQI information, the selection resource is done reference when transmitting for the base station next time; High-Speed Shared Control Channel (HS-SCCH, High-Speed Shared Control Channel) channel mainly carries the professional needed control information of HSDPA, the code channel that takies of HS-DSCH for example, time slot, modulation system, transmission block size, process number, the new data indication, the cyclic sequence of redundancy version information and HS-SCCH number (HCSN, HS-SCCH Cycle Sequence Number).According to standard, the user only could receive the data of HS-DSCH channel after correctly detecting the HS-SCCH channel.So the quality of the detection performance of HS-SCCH channel just becomes the professional prerequisite of carrying out of HSDPA.And one efficiently the Poewr control method of HS-SCCH can improve the detection performance of HS-SCCH.
Descending power control is applied to the interference in the restriction system usually, to reduce the presence of intercell interference level, reduces the consumption of base station transmitting power and the service quality of assurance subscriber equipment.The power control of physical layer is made up of the power control of interior ring and outer shroud usually.
Please refer to Fig. 1, in the control of base station to the HS-SCCH transmitting power, can adopt the power control mode of closed loop.Under this control model, power control is divided into inner-loop power control and external circule power control.Described external circule power control, its objective is by the actual signal quality (being the Block Error Rate statistical value) to monitoring and compare with professional required target signal qualities (being the target Block Error Rate), obtain the desired value (as target signal to noise ratio) of a real-time update, and this desired value is configured to the inner-loop power control process uses, be used for inner loop power control; Described inner-loop power control, signal to noise ratio according to current measurement, and several signal-to-interference ratio measurement values of past, predict the signal to noise ratio of next subframe, and by comparing the target signal to noise ratio that signal-to-noise ratio to predict value and external circule power control provide, draw the power control command word of adjusting about power, this power control command word is sent to the base station by upward signal, the base station is regulated the transmitting power of HS-SCCH according to this power control command word.
Prior art at first is that UE receives HS-SCCH and decoding when HS-SCCH being carried out closed power control, estimation HS-SCCH signal quality, as Block Error Rate (BLER), if signal quality is too poor, UE will require the base station to improve the transmitting power of HS-SCCH, to improve the receptivity of HS-SCCH; If signal quality is very good, then UE will require the base station to reduce the transmitting power of HS-SCCH, to save base station power consumption.There is following problem in the above-mentioned processing method of prior art:
In the power control of existing TD-HSDPA system, UE adds up the quantity of the HS-SCCH of the decoding error that exists between the HS-SCCH that adjacent twice decoding passes through, when this quantity reaches a thresholding, informing base station is improved the transmitting power of HS-SCCH.But, this processing mode does not consider that this situation: HS-SCCH continues decoding error for some time, if this moment, the transmitting power of HS-SCCH was not improved in the base station, then HS-SCCH may can not decipher always and pass through, therefore can't obtain the quantity of the HS-SCCH of decoding error by the processing mode of prior art, the transmitting power that also just can't informing base station improves HS-SCCH, thereby causing HS-SCCH can not decipher for a long time passes through, influence the performance of HS-SCCH, reduced the performance of TD-HSDPA system.
Summary of the invention
The Poewr control method, device and the subscriber equipment that the purpose of this invention is to provide a kind of High-Speed Shared Control Channel are realized the power control to High-Speed Shared Control Channel.
For solving the problems of the technologies described above, it is as follows to the invention provides scheme:
The Poewr control method of a kind of HS-SCCH is applied to a subscriber equipment that is operated in noncontinuity grouping connection mode, comprising:
Receive HS-SCCH and decoding;
When the described HS-SCCH decoding error of current reception, statistics is first quantity of the HS-SCCH of decoding error continuously;
Judge that whether described first quantity reaches the first default thresholding, obtains first judged result;
When described first judged result indicates described first quantity to reach described first thresholding, judge the current descending A-DPCH that whether has described subscriber equipment, obtain second judged result;
When there is described descending A-DPCH in the indication of described second judged result, improve the desired value that is used for the control of HS-SCCH inner loop power.
Preferably, in the said method,
When there is described descending A-DPCH in the indication of described second judged result, further obtain the actual signal quality of HS-SCCH and the desired signal quality of the described HS-SCCH that acquisition sets in advance;
More described actual signal quality and described desired signal quality obtain a comparative result;
Indicate described actual signal quality not reach described desired signal quality as yet at described comparative result, and the gap between described actual signal quality and the described desired signal quality is during greater than default the 3rd thresholding, improves the described desired value of controlling for the HS-SCCH inner loop power.
Preferably, in the said method, also comprise:
Judge that whether described first quantity reaches preset second threshold, obtains the 3rd judged result;
When described the 3rd judged result indicates described first quantity to reach described second thresholding, judge the current descending A-DPCH that whether has described subscriber equipment, obtain the 4th judged result;
When there is described descending A-DPCH in the indication of described the 4th judged result, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
Preferably, in the said method,
Described transmission is used to indicate the base station and improves the power control command of descending A-DPCH transmitting power and comprise:
By the power control command word TPC among the up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
The embodiment of the invention also provides the output control device of a kind of HS-SCCH, is applied to a subscriber equipment that is operated in noncontinuity grouping connection mode, it is characterized in that, comprising:
First receiving element is used for receiving HS-SCCH and decoding;
First statistic unit is used for when the described HS-SCCH decoding error of current reception, and statistics is first quantity of the HS-SCCH of decoding error continuously;
First judging unit is used for judging that whether described first quantity reaches the first default thresholding, obtains first judged result;
Second judging unit is used for judging the current descending A-DPCH that whether has described subscriber equipment when described first judged result indicates described first quantity to reach described first thresholding, obtains second judged result;
First processing unit is used for improving the desired value that is used for the control of HS-SCCH inner loop power when there is described descending A-DPCH in described second judged result indication.
Preferably, in the said apparatus, described first processing unit comprises:
First obtains the unit, is used for obtaining the actual signal quality of HS-SCCH and the desired signal quality of the described HS-SCCH that acquisition sets in advance when there is described descending A-DPCH in described second judged result indication;
First comparing unit is used for more described actual signal quality and described desired signal quality, obtains a comparative result;
The first desired value updating block, be used for indicating described actual signal quality not reach described desired signal quality as yet at described comparative result, and the gap between described actual signal quality and the described desired signal quality is during greater than default the 3rd thresholding, improves the described desired value of controlling for the HS-SCCH inner loop power.
Preferably, in the said apparatus, also comprise:
The 3rd judging unit is used for judging that whether described first quantity reaches preset second threshold, obtains the 3rd judged result;
The 4th judging unit is used for judging the current descending A-DPCH that whether has described subscriber equipment when described the 3rd judged result indicates described first quantity to reach described second thresholding, obtains the 4th judged result;
Second processing unit, be used for when there is described descending A-DPCH in described the 4th judged result indication, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
Preferably, in the said apparatus, described second processing unit comprises:
First transmitting element, be used for the power control command word TPC by up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
The embodiment of the invention also provides a kind of subscriber equipment that is operated in noncontinuity grouping connection mode, comprises above-described exterior ring power control device.
The embodiment of the invention also provides the Poewr control method of another kind of HS-SCCH, is applied to a subscriber equipment that is operated in noncontinuity grouping connection mode, comprising:
Receive HS-SCCH and decoding;
When the described HS-SCCH decoding error of current reception, statistics is second quantity of the HS-SCCH of decoding error continuously;
Judge that whether described second quantity reaches the 3rd default thresholding, obtains the 5th judged result;
When described the 5th judged result indicates described second quantity to reach described the 3rd thresholding, judge the current descending A-DPCH that whether has described subscriber equipment, obtain the 6th judged result;
When there is described descending A-DPCH in the indication of described the 6th judged result, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
Preferably, in the said method,
Described transmission is used to indicate the base station and improves the power control command of descending A-DPCH transmitting power and comprise:
By the power control command word TPC among the up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
The embodiment of the invention also provides the output control device of another kind of HS-SCCH, is applied to a subscriber equipment that is operated in noncontinuity grouping connection mode, comprising:
Second receiving element is used for receiving HS-SCCH and decoding;
Second statistic unit is used for when the described HS-SCCH decoding error of current reception, and statistics is second quantity of the HS-SCCH of decoding error continuously;
The 5th judging unit is used for judging that whether described second quantity reaches the 3rd default thresholding, obtains the 5th judged result;
The 6th judging unit is used for judging the current descending A-DPCH that whether has described subscriber equipment when described the 5th judged result indicates described second quantity to reach described the 3rd thresholding, obtains the 6th judged result;
The 3rd processing unit, be used for when there is described descending A-DPCH in described the 6th judged result indication, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
Preferably, in the said apparatus, described the 3rd processing unit comprises:
Second transmitting element, be used for the power control command word TPC by up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
The embodiment of the invention also provides the another kind of subscriber equipment that is operated in noncontinuity grouping connection mode, comprises above-described exterior ring power control device.
From the above as can be seen, the Poewr control method of High-Speed Shared Control Channel provided by the invention, device and subscriber equipment, when HS-SCCH decoding error always in a period of time, and when having the descending A-DPCH send to this subscriber equipment, then informing base station improves the transmitting power of descending A-DPCH, because the difference of transmitting power between descending A-DPCH and the HS-SCCH is located usually in a preset range in the base station, the base station is after the transmitting power that improves descending A-DPCH, for continuing to keep the difference of transmitting power between descending A-DPCH and the HS-SCCH in this preset range, described base station will be done the adjustment of equidirectional to the transmitting power of HS-SCCH, namely improve the transmitting power of HS-SCCH, can not improve under the situation of HS-SCCH transmitting power by HS-SCCH inner-loop power control informing base station thus, can make that also the HS-SCCH transmitting power is improved, thereby can improve the receptivity of HS-SCCH, improve the performance of TD-HSDPA system.And, the present invention is also in the external circule power control of HS-SCCH, when HS-SCCH decoding error always in a period of time, and descending A-DPCH is can receive the time, improve the desired value that is used for the HS-SCCH inner-loop power control, thereby before the quantity of the HS-SCCH that counts the decoding error that exists between the HS-SCCH that adjacent twice decoding passes through, can implement exterior ring power control in advance.
Description of drawings
Fig. 1 is a kind of structure chart that comprises the closed-loop power control device of outer shroud and interior ring in the TDD system;
The schematic flow sheet of the Poewr control method of the HS-SCCH that Fig. 2 provides for the embodiment of the invention one;
Fig. 3 is the structural representation of the embodiment of the invention one described output control device;
The schematic flow sheet of the Poewr control method of the HS-SCCH that Fig. 4 provides for the embodiment of the invention two.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the accompanying drawings and the specific embodiments.
＜embodiment one 〉
In the TD-HSDPA system, following special physical channel (A-A-DPCH, Accompany-Dedicated Physical Channel) is used for carrying and transmission high-level signaling.Usually, A-DPCH is configured to comprise the form of uplink and downlink, and namely uplink and downlink all use:
1) be generally each user and dispose a descending A-DPCH, descending A-DPCH is used for carrying and transmission high-level signaling information, up A-DPCH reach power control information synchronously;
2) up A-DPCH reaches power control information synchronously for carrying and transmission high-level signaling information, grouped data, up A-DPCH.
The embodiment of the invention has been introduced descending A-DPCH and has been participated in the control of HS-SCCH power.In the TD-HSDPA system, for certain subscriber equipment, after starting the HSPDA business, normally send to this subscriber equipment as the descending A-DPCH of dedicated channel always, therefore, if the long-time decoding error of the HS-SCCH of subscriber equipment place, then there is the descending A-DPCH that sends to this subscriber equipment this moment, illustrate then that in the HS-SCCH of these decoding errors to have the probability of the HS-SCCH that sends to this subscriber equipment bigger, therefore be necessary to improve the transmitting power of HS-SCCH, this moment can be in the exterior ring power control of HS-SCCH, by improving the desired value that is used for the control of HS-SCCH inner loop power, as target signal to noise ratio, make that the desired value of HS-SCCH inner loop power control namely allows to can also obtain as early as possible adjusting under the wrong situation at HS-SCCH always.Please refer to Fig. 2, the Poewr control method of the HS-SCCH that present embodiment provides is applied to one and is operated in the subscriber equipment (UE) that the noncontinuity grouping connects (non-CPC, Continuous Packet Connectivity) pattern, and this method may further comprise the steps:
Here, decoding refers to that HS-SCCH is carried out cyclic redundancy check (CRC) (CRC, Cyclic Redundancy Check) to be handled, if verification is passed through, then HS-SCCH decoding is passed through; If verification failure, then HS-SCCH decoding error.
Here, after the professional foundation of HSDPA, UE can detect HS-SCCH usually always.Owing to may exist some HS-SCCH to send to this user, but send to other users, HS-SCCH can decoding error in this case.In addition, even certain HS-SCCH sends to this user, but pass through owing to factors such as channel quality and/or transmitting power cause this HS-SCCH not decipher, the HS-SCCH decoding error also can take place in this moment.Present embodiment is in above-mentioned steps 22, add up first quantity of the HS-SCCH of continuous decoding error, specifically can be the quantity that recurs the HS-SCCH subframe of decoding error by statistics, or recur the quantity of system-frame of the HS-SCCH correspondence of decoding error by statistics, obtain described first quantity.
Here, the setting of described first thresholding, can be with reference to prior art, for example, in external circule power control, when the quantity of the HS-SCCH of the decoding error that sends to subscriber equipment reaches certain numerical value, then described desired value is increased a step-length, present embodiment can be set to above-mentioned numerical value by described first thresholding.
Here, the described desired value in the step 25 can be power target value or signal-to-noise target value etc.
Present embodiment is in above-mentioned steps, when HS-SCCH decoding error always in a period of time, and when having the descending A-DPCH send to this subscriber equipment, then improve the desired value that is used for the HS-SCCH inner-loop power control, thereby can be before the quantity of the HS-SCCH that counts the decoding error that exists between the HS-SCCH that adjacent twice decoding passes through, can implement the control of HS-SCCH exterior ring power, improve the desired value of HS-SCCH inner-loop power control in advance.
In the present embodiment, the concrete numerical value of the first default thresholding can consider that usually the thresholding that triggers reset operation in the span of HCSN and/or the control of HS-SCCH power arranges.For example, be 0～7 o'clock in the span of HCSN, described first thresholding can be set to an integer between 1～7, and is preferred, can be set to an integer between 3～6.Again for example, described first thresholding can be arranged to a numerical value less than the thresholding of described reset operation usually.Described reset operation refers to reset in the control of HS-SCCH power and is controlled the numerical value of all counters by the desired value that is used for inner-loop power control of external circule power control setting and the HS-SCCH power that resets.The quantity of the HS-SCCH of the decoding error that exists between the HS-SCCH that the thresholding of described reset operation can pass through according to adjacent twice decoding that UE statistics obtains usually arranges.
As another preferred implementation, when there is described descending A-DPCH in present embodiment in the indication of described second judged result, not directly to improve the desired value that is used for the control of HS-SCCH inner loop power, but further judge by following steps, just go to improve described desired value under certain conditions.At this moment, as shown in Figure 3, present embodiment above-mentioned steps 25 specifically can may further comprise the steps:
Step 1 when there is described descending A-DPCH in the indication of described second judged result, obtains the actual signal quality of HS-SCCH and the desired signal quality of the described HS-SCCH that acquisition sets in advance.
Step 2, more described actual signal quality and described desired signal quality obtain a comparative result.
Step 3, actual signal quality at described comparative result indication HS-SCCH does not reach described desired signal quality as yet, and the gap between described actual signal quality and the described desired signal quality is during greater than default the 3rd thresholding, improves the described desired value of controlling for the HS-SCCH inner loop power.
Step 4 indicates the actual signal quality of HS-SCCH to reach described desired signal quality at described comparative result, can process ends.
Here, the actual signal quality can be added up acquisition to the signal quality of HS-SCCH in nearest one section Preset Time by subscriber equipment.Signal quality can characterize by different indexs, for example adopts indexs such as Block Error Rate (BLER), the error rate or signal to noise ratio.When adopting Block Error Rate/error rate as specific targets, if the numerical value of this index of actual signal quality greater than the numerical value of this index of desired signal quality, thinks that then the actual signal quality does not reach described desired signal quality as yet.Again for example, when adopting signal to noise ratio as specific targets, if the numerical value of this index of actual signal quality less than the numerical value of this index of desired signal quality, thinks that then the actual signal quality does not reach described desired signal quality as yet.In the present embodiment, described actual signal quality optimization ground adopts the statistics of Block Error Rate, and described desired signal quality preferably adopts the desired value of Block Error Rate, and described desired value preferably adopts the desired value of signal to noise ratio.
In the above step, subscriber equipment only when the signal quality of HS-SCCH does not reach desired value, just goes to improve the desired value of HS-SCCH inner-loop power control, makes more targeted to the adjustment of described desired value.
In current TD-HSDPA system, the base station usually can be with the two transmitting power difference control in a default scope, so that subscriber equipment can receive above-mentioned channel better, that is: when emission HS-SCCH and descending A-DPCH
|Power_HS-SCCH-Power_A-DPCH|＜α
Here, || expression takes absolute value, and POWER_HS-SCCH and POWER_A-A-DPCH represent the transmitting power of HS-SCCH and descending A-DPCH respectively, and α is value in 9dB～12dB scope usually.
Present embodiment can't be deciphered by can not adjust the HS-SCCH transmitting power by the HS-SCCH inner-loop power control time because of HS-SCCH at subscriber equipment, utilized the contact between the base station HS-SCCH of place and the descending A-DPCH transmitting power dexterously, inner loop power control by A-DPCH, descending A-DPCH transmitting power is improved in the control base station, and then improved the HS-SCCH transmitting power in linkage, thereby improved the HS-SCCH of subscriber equipment place receptivity, avoided to decipher the harmful effect to the performance of HS-SCCH receptivity and TD-HSDPA system by causing for a long time because of the HS-SCCH of subscriber equipment place.At this moment, after above-mentioned steps 22, present embodiment can also may further comprise the steps:
Steps A judges that whether described first quantity reaches preset second threshold, obtains the 3rd judged result.
In the present embodiment, the concrete numerical value of preset second threshold can consider that usually the thresholding that triggers reset operation in the control of the span of HCSN and/or HS-SCCH power arranges.For example, be 0～7 o'clock in the span of HCSN, described second thresholding can be set to an integer between 1～7, and is preferred, can be set to an integer between 3～6.Again for example, described second thresholding can be arranged to a numerical value less than the thresholding of described reset operation usually.Described reset operation refers to reset in the control of HS-SCCH power and is controlled the numerical value of all counters by the desired value that is used for inner-loop power control of external circule power control setting and the HS-SCCH power that resets.The quantity of the HS-SCCH of the decoding error that exists between the HS-SCCH that the thresholding of described reset operation can pass through according to adjacent twice decoding that UE statistics obtains usually arranges.Here, can be without any related between described first thresholding in described second thresholding and the above-mentioned steps 23, namely described second thresholding greater than, be equal to or less than described first thresholding and all can.
Step B when described the 3rd judged result indicates described first quantity to reach described second thresholding, judges the current descending A-DPCH that whether has described subscriber equipment, obtains the 4th judged result.
Step C, when there is described descending A-DPCH in the indication of described the 4th judged result, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
Here, in above-mentioned steps 25 ', present embodiment specifically can be by the power control command word (TPC) among the up A-DPCH, insert the power per liter control command therein, with to described base-station transmitting-power control command, in order to indicating described base station to improve the transmitting power of descending A-DPCH, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
Present embodiment has been introduced descending A-DPCH and has been participated in the control of HS-SCCH power in above steps A～step C.In the TD-HSDPA system, for certain subscriber equipment, after starting the HSPDA business, normally send to this subscriber equipment as the descending A-DPCH of dedicated channel always, therefore, if can there be the descending A-DPCH that sends to this subscriber equipment in the long-time decoding error of the HS-SCCH of subscriber equipment place then and at this moment, illustrate that then to have the probability of the HS-SCCH that sends to this subscriber equipment among the HS-SCCH of these decoding errors bigger, therefore be necessary to improve the transmitting power of HS-SCCH.Therefore, present embodiment is by the inner loop power control of descending A-DPCH, make the base station improve descending A-DPCH transmitting power, and then utilize contact between descending A-DPCH and the HS-SCCH transmitting power, make the base station improve the HS-SCCH transmitting power simultaneously dexterously, thereby can not improve under the situation of HS-SCCH transmitting power by HS-SCCH inner-loop power control informing base station, can make that also the HS-SCCH transmitting power is improved, therefore can improve the receptivity of HS-SCCH, improve the TD-HSDPA systematic function.
Present embodiment also provides the output control device of a kind of HS-SCCH, and this device is applied to a subscriber equipment that is operated in noncontinuity grouping connection mode.
As shown in Figure 3, this device can comprise:
First receiving element is used for receiving HS-SCCH and decoding;
First statistic unit is used for when the described HS-SCCH decoding error of current reception, and statistics is first quantity of the HS-SCCH of decoding error continuously;
First judging unit is used for judging that whether described first quantity reaches the first default thresholding, obtains first judged result;
Second judging unit is used for judging the current descending A-DPCH that whether has described subscriber equipment when described first judged result indicates described first quantity to reach described first thresholding, obtains second judged result;
First processing unit is used for improving the desired value that is used for the control of HS-SCCH inner loop power when there is described descending A-DPCH in described second judged result indication.
Here, described actual signal quality can be the statistics of Block Error Rate, and described desired signal quality can be the desired value of Block Error Rate, and described desired value can be the desired value of signal to noise ratio.
Wherein, described first processing unit can comprise:
First obtains the unit, is used for obtaining the actual signal quality of HS-SCCH and the desired signal quality of the described HS-SCCH that acquisition sets in advance when there is described descending A-DPCH in described second judged result indication;
First comparing unit is used for more described actual signal quality and described desired signal quality, obtains a comparative result;
The first desired value updating block, be used for indicating described actual signal quality not reach described desired signal quality as yet at described comparative result, and the gap between described actual signal quality and the described desired signal quality is during greater than default the 3rd thresholding, improves the described desired value of controlling for the HS-SCCH inner loop power.
In the above-mentioned output control device of present embodiment, can also comprise:
The 3rd judging unit is used for judging that whether described first quantity reaches preset second threshold, obtains the 3rd judged result;
The 4th judging unit is used for judging the current descending A-DPCH that whether has described subscriber equipment when described the 3rd judged result indicates described first quantity to reach described second thresholding, obtains the 4th judged result;
Second processing unit, be used for when there is described descending A-DPCH in described the 4th judged result indication, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
Wherein, described second processing unit can comprise:
First transmitting element, be used for the power control command word TPC by up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
Present embodiment also provides a kind of subscriber equipment that is operated in noncontinuity grouping connection mode, and this subscriber equipment comprises above-described device.
＜embodiment two 〉
Please refer to Fig. 4, the Poewr control method of the HS-SCCH that present embodiment provides is applied to one and is operated in the subscriber equipment (UE) that the noncontinuity grouping connects (non-CPC, Continuous Packet Connectivity) pattern, and this method may further comprise the steps:
Here, decoding refers to that HS-SCCH is carried out cyclic redundancy check (CRC) (CRC, Cyclic Redundancy Check) to be handled, if verification is passed through, then HS-SCCH decoding is passed through; If verification failure, then HS-SCCH decoding error.
Here, after the professional foundation of HSDPA, UE can detect HS-SCCH usually always.Owing to may exist some HS-SCCH to send to this user, but send to other users, HS-SCCH can decoding error in this case.In addition, even certain HS-SCCH sends to this user, but pass through owing to factors such as channel quality and/or transmitting power cause this HS-SCCH not decipher, the HS-SCCH decoding error also can take place in this moment.Present embodiment is in above-mentioned steps 52, add up second quantity of the HS-SCCH of continuous decoding error, specifically can be the quantity that recurs the HS-SCCH subframe of decoding error by statistics, or recur the quantity of system-frame of the HS-SCCH correspondence of decoding error by statistics, obtain described second quantity.
Here, in the above-mentioned steps 45, subscriber equipment can be by the power control command word TPC among the up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
Present embodiment is in above step 41～step 45, introduced descending A-DPCH and participated in the control of HS-SCCH power: by the inner loop power control of descending A-DPCH, make the base station improve descending A-DPCH transmitting power, and then utilize contact between descending A-DPCH and the HS-SCCH transmitting power, make the base station improve the HS-SCCH transmitting power simultaneously dexterously, thereby can not improve under the situation of HS-SCCH transmitting power by HS-SCCH inner-loop power control informing base station, can make that also the HS-SCCH transmitting power is improved, therefore can improve the receptivity of HS-SCCH, improve the TD-HSDPA systematic function.
Present embodiment also provides the output control device of a kind of HS-SCCH, is applied to a subscriber equipment that is operated in noncontinuity grouping connection mode, and this device comprises:
Second receiving element is used for receiving HS-SCCH and decoding;
Second statistic unit is used for when the described HS-SCCH decoding error of current reception, and statistics is second quantity of the HS-SCCH of decoding error continuously;
The 5th judging unit is used for judging that whether described second quantity reaches the 3rd default thresholding, obtains the 5th judged result;
The 6th judging unit is used for judging the current descending A-DPCH that whether has described subscriber equipment when described the 5th judged result indicates described second quantity to reach described the 3rd thresholding, obtains the 6th judged result;
The 3rd processing unit, be used for when there is described descending A-DPCH in described the 6th judged result indication, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
Wherein, described the 3rd processing unit comprises:
Second transmitting element, be used for the power control command word TPC by up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
Present embodiment also provides a kind of subscriber equipment that is operated in noncontinuity grouping connection mode, and this subscriber equipment comprises above-described device.
Many functional parts described in this specification all are called as module, in order to emphasize the independence of its implementation more especially.
In the present embodiment, module can realize with software, in order to carried out by various types of processors.For instance, the executable code module of a sign can comprise one or more physics or the logical block of computer instruction, and for instance, it can be built as object, process or function.However, the executable code of institute's identification module need not to be physically located in together, but can comprise the different instruction on being stored in the coordination not, when combining on these command logics, and its composition module and realize the regulation purpose of this module.
In fact, executable code module can be individual instructions or many instructions, and even can be distributed on a plurality of different code segments, be distributed in the middle of the distinct program, and cross over a plurality of memory devices and distribute.Similarly, operating data can be identified in module, and can realize and be organized in the data structure of any suitable type according to any suitable form.Described operating data can be used as the individual data collection and is collected, and perhaps can be distributed on the diverse location (to be included on the different storage device), and can only be present on system or the network as electronic signal at least in part.
When module can utilize software to realize, consider the level of existing hardware technology, so can be with the module of software realization, do not considering under the condition of cost, those skilled in the art can build the corresponding hardware circuit and realize corresponding function, and described hardware circuit comprises conventional ultra-large integrated (VLSI) circuit or gate array and the existing semiconductor such as logic chip, transistor or other discrete element.Module can also be used programmable hardware device, such as realizations such as field programmable gate array, programmable logic array, programmable logic devices.
The above only is embodiments of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. the Poewr control method of a high-speed shared control channel HS-SCCH is applied to a subscriber equipment that is operated in noncontinuity grouping connection mode, it is characterized in that, comprising:
Receive HS-SCCH and decoding;
When the described HS-SCCH decoding error of current reception, statistics is first quantity of the HS-SCCH of decoding error continuously;
Judge that whether described first quantity reaches the first default thresholding, obtains first judged result;
When described first judged result indicates described first quantity to reach described first thresholding, judge the current descending A-DPCH that whether has described subscriber equipment, obtain second judged result;
When there is described descending A-DPCH in the indication of described second judged result, improve the desired value that is used for the control of HS-SCCH inner loop power.
2. the method for claim 1 is characterized in that,
When there is described descending A-DPCH in the indication of described second judged result, further obtain the actual signal quality of HS-SCCH and the desired signal quality of the described HS-SCCH that acquisition sets in advance;
More described actual signal quality and described desired signal quality obtain a comparative result;
Indicate described actual signal quality not reach described desired signal quality as yet at described comparative result, and the gap between described actual signal quality and the described desired signal quality is during greater than default the 3rd thresholding, improves the described desired value of controlling for the HS-SCCH inner loop power.
3. method as claimed in claim 1 or 2 is characterized in that, also comprises:
Judge that whether described first quantity reaches preset second threshold, obtains the 3rd judged result;
When described the 3rd judged result indicates described first quantity to reach described second thresholding, judge the current descending A-DPCH that whether has described subscriber equipment, obtain the 4th judged result;
When there is described descending A-DPCH in the indication of described the 4th judged result, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
4. method as claimed in claim 3 is characterized in that,
Described transmission is used to indicate the base station and improves the power control command of descending A-DPCH transmitting power and comprise:
By the power control command word TPC among the up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
5. the output control device of a high-speed shared control channel HS-SCCH is applied to a subscriber equipment that is operated in noncontinuity grouping connection mode, it is characterized in that, comprising:
First receiving element is used for receiving HS-SCCH and decoding;
First statistic unit is used for when the described HS-SCCH decoding error of current reception, and statistics is first quantity of the HS-SCCH of decoding error continuously;
First judging unit is used for judging that whether described first quantity reaches the first default thresholding, obtains first judged result;
Second judging unit is used for judging the current descending A-DPCH that whether has described subscriber equipment when described first judged result indicates described first quantity to reach described first thresholding, obtains second judged result;
First processing unit is used for improving the desired value that is used for the control of HS-SCCH inner loop power when there is described descending A-DPCH in described second judged result indication.
6. output control device as claimed in claim 5 is characterized in that,
Described first processing unit comprises:
First obtains the unit, is used for obtaining the actual signal quality of HS-SCCH and the desired signal quality of the described HS-SCCH that acquisition sets in advance when there is described descending A-DPCH in described second judged result indication;
First comparing unit is used for more described actual signal quality and described desired signal quality, obtains a comparative result;
The first desired value updating block, be used for indicating described actual signal quality not reach described desired signal quality as yet at described comparative result, and the gap between described actual signal quality and the described desired signal quality is during greater than default the 3rd thresholding, improves the described desired value of controlling for the HS-SCCH inner loop power.
7. as claim 5 or 6 described output control devices, it is characterized in that, also comprise:
The 3rd judging unit is used for judging that whether described first quantity reaches preset second threshold, obtains the 3rd judged result;
The 4th judging unit is used for judging the current descending A-DPCH that whether has described subscriber equipment when described the 3rd judged result indicates described first quantity to reach described second thresholding, obtains the 4th judged result;
Second processing unit, be used for when there is described descending A-DPCH in described the 4th judged result indication, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
8. output control device as claimed in claim 7 is characterized in that,
Described second processing unit comprises:
First transmitting element, be used for the power control command word TPC by up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
9. a subscriber equipment that is operated in noncontinuity grouping connection mode is characterized in that, comprises as each described exterior ring power control device of claim 5 to 8.
10. the Poewr control method of a high-speed shared control channel HS-SCCH is applied to a subscriber equipment that is operated in noncontinuity grouping connection mode, it is characterized in that, comprising:
Receive HS-SCCH and decoding;
When the described HS-SCCH decoding error of current reception, statistics is second quantity of the HS-SCCH of decoding error continuously;
Judge that whether described second quantity reaches the 3rd default thresholding, obtains the 5th judged result;
When described the 5th judged result indicates described second quantity to reach described the 3rd thresholding, judge the current descending A-DPCH that whether has described subscriber equipment, obtain the 6th judged result;
When there is described descending A-DPCH in the indication of described the 6th judged result, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
11. method as claimed in claim 10 is characterized in that,
Described transmission is used to indicate the base station and improves the power control command of descending A-DPCH transmitting power and comprise:
By the power control command word TPC among the up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
12. the output control device of a high-speed shared control channel HS-SCCH is applied to a subscriber equipment that is operated in noncontinuity grouping connection mode, it is characterized in that, comprising:
Second receiving element is used for receiving HS-SCCH and decoding;
Second statistic unit is used for when the described HS-SCCH decoding error of current reception, and statistics is second quantity of the HS-SCCH of decoding error continuously;
The 5th judging unit is used for judging that whether described second quantity reaches the 3rd default thresholding, obtains the 5th judged result;
The 6th judging unit is used for judging the current descending A-DPCH that whether has described subscriber equipment when described the 5th judged result indicates described second quantity to reach described the 3rd thresholding, obtains the 6th judged result;
The 3rd processing unit, be used for when there is described descending A-DPCH in described the 6th judged result indication, transmission is used to indicate the power control command that descending A-DPCH transmitting power is improved in the base station, wherein, the difference between the transmitting power of the transmitting power of described descending A-DPCH and described HS-SCCH is in a preset range.
13. output control device as claimed in claim 12 is characterized in that,
Described the 3rd processing unit comprises:
Second transmitting element, be used for the power control command word TPC by up A-DPCH, send described power control command to described base station, improve the transmitting power of descending A-DPCH in order to indicate described base station, and then make described base station improve the transmitting power of described HS-SCCH, be in described preset range to keep described difference.
14. a subscriber equipment that is operated in noncontinuity grouping connection mode is characterized in that, comprises as each described exterior ring power control device of claim 12 to 13.
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| CN2012100057886A CN103200664A (en) | 2012-01-10 | 2012-01-10 | Power control method, device and user equipment of control channel high-speed sharing |
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| CN1852041A (en) * | 2005-09-28 | 2006-10-25 | 华为技术有限公司 | Method of self-adoptive regulating high-speed share control channel power |
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| CN1420704A (en) * | 2001-11-16 | 2003-05-28 | Lg电子株式会社 | Method for control of HS-SCCH transmission power in UMTS system |
| US20030128673A1 (en) * | 2002-01-05 | 2003-07-10 | Lg Electronics Inc. | Method for controlling power of HS-SCCH in mobile communication system |
| CN1790939A (en) * | 2004-12-13 | 2006-06-21 | 华为技术有限公司 | Power controlling method for uplink high-speed special physical control channel |
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