CN102196546B - Uplink control method for reducing error rate of TD-HSUPA (Time Division-High Speed Uplink Packet Access) - Google Patents
Uplink control method for reducing error rate of TD-HSUPA (Time Division-High Speed Uplink Packet Access) Download PDFInfo
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Abstract
The invention relates to the technical field of third generation mobile telecommunication, in particular to an uplink control method for reducing an error rate of a TD-HSUPA (Time Division-High Speed Uplink Packet Access) terminal of an enhanced technology high speed uplink packet access system of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access). The method comprises the following steps of controlling the power of the terminal by using different E-PUCH (Enhanced-Uplink Physical Channel) power control strategies according to a threshold range of an E-PUCH error rate Er counted within an E-PUCH error block sliding window; and transmitting data on the E-PUCH by using the adjusted transmission power. The power of the terminal is more reasonably controlled and the error rate is largely reduced to achieve the purpose of increasing and stabilizing the speed; moreover, the size of the selected transmission block is limited through a special E-TFC (Enhanced-Transmission Channel Format Combination) selecting process; and a small data block is tried to be transmitted on the EPUCH so that the transmission time number of a big data block analyzed in a wrong way is reduced and the error rate is also reduced.
Description
Technical field
The present invention relates to the 3G (Third Generation) Moblie technical field, the upload control method of Enhanced Technology high speed up packet access system (being called for short TD-HSUPA) the terminal error rate of particularly a kind of reduction TDS-CDMA system (being called for short TD-SCDMA).
Background technology
In the TD-HSUPA system; Network control and all Radio Resources of managing in the sub-district, network will decide the mandate size to the terminal according to the schedule information (being called for short SI) of terminal to report; Come power control is carried out at the terminal according to the error rate simultaneously; The processes such as selection of transformat are accomplished according to the mandate of network in the terminal, use simultaneously through the network regulated transmission power, in the transmission of the enterprising line data of enhanced uplink physical channel (being called for short E-PUCH).Provided a complete TD-HSUPA scheduling of resource process among Fig. 1, assigned process from the terminal resource application to Internet resources, total can be divided into following plurality of processes:
1, the terminal is when needs are initiated transmitting uplink data, if the terminal does not also obtain the Internet resources transmission permission, then enhanced random up (being called for short E-RUCCH) process is at first initiated at the terminal.In this process, the terminal is with reporting scheduling information (being called for short SI), and SI can loaded information such as table 1.
Table 1 SI can loaded information
| Beared information | Content |
| SNPL(5bits) | Serving cell and adjacent cell path loss information |
| UPH(5bits) | Terminal headroom power |
| TEBS(5bits) | Whole dispatch E-DCH buffer status |
| HLBS(4bits) | The buffer status of the highest Logic Priority level channel |
| HLID(4bits) | The logic channel ID sign of limit priority |
| E-RNTI(16bits) | The E-DCH Radio Network Temporary Identifier |
2, network is received after the SI information of self terminal; Will be according to enhanced dedicated transport (being called for short E-DCH) the channel buffer status (being called for short TEBS) at terminal; Serving cell and adjacent cell path loss information (being called for short SNPL) and terminal headroom power information such as (being called for short UPH) are carried out resource assignment on the absolute grant channel (being called for short E-AGCH) of E-DCH scheduling; And according to the error condition of this moment and this moment other-end UE information such as scheduling situation, decide assign give the terminal resource what, and through the E-AGCH channel; Carry emissive power control command TPC, adjust the transmitted power of E-PUCH physical channel.
The transmitted power of E-PUCH channel is divided two processes, and what begin to adopt is the open Loop Power control process, will use closed power control later on.The method of closed power control in scheduled transmission, adopts the E-AGCH channel, the transmission power control word TPC that carries; In non-scheduled transmission, carry the transmitted power that TPC adjusts the E-PUCH channel through affirmation indicating channel E-HICH; The computing formula of E-PUCH transmitted power specifically can be with reference to 3GPP, the 5.1.1.6 trifle among the TS25.224;
P
E-PUCH＝P
e-base+L+β
e
Wherein, P
E-PUCHBe the E-PUCH channel transmission power; L is a current area path loss information, and computing formula is L=P
PCCPCH_TX-RSCP, P
PCCPCH_TXBe the PCCPCH channel transmission power of network configuration, RSCP is the received signal code power of current area; β
eFor the terminal when carrying out the E-TFC selection course, the power resource of institute's reference, the power resource relevant information of carrying through the E-AGCH physical channel with network (being called for short PRRI) same meaning;
Wherein
PRX
Des_baseWhen not carrying any data for the terminal, the transmitted power at network expectation terminal, through the service bearer message arrangement, the step power control step-size is from higher-layer protocols by network; TPC
iThe closed loop power control command TPC of network.
The E-AGCH physical channel is mainly used in the physical resource information that bearer network is assigned the terminal, carry-on information of E-AGCH physical channel such as table 2.
The carry-on information of table 2 E-AGCH physical channel
| Carry information | Number of bits | Remarks |
| PRRI | 5 | The power resource relevant information |
| CRRI | 5 | The code channel resource relevant information |
| TRRI | 5 | The time interval resource relevant information |
| RDI | 3 | The resource continuous factor |
| ECSN | 3 | The transmission sequence number of E-AGCH |
| EI | 2 | The E-HICH indication |
| ENI | 3 | The number of E-UCCH |
Wherein, Power resource relevant information (be called for short PRRI), code channel resource relevant information (being called for short CRRI) and three parameters of time interval resource relevant information (being called for short TRRI) have confirmed that network authorization gives the operable amount of radio resources in terminal, and the resource continuous factor (being called for short RDI) has represented that then the terminal can use the time and the mode of Radio Resource continuously.The E-AGCH authorization resources will be used for enhanced uplink physical channel (being called for short E-PUCH) transmission, and the E-PUCH physical channel has carried the data of terminal TD-HSUPA user plane.
3, receive after the information on the E-AGCH at the terminal; According to network through Radio Resource that E-AGCH authorized; Strengthen the transmission channel format combination selection course of (being called for short E-TFC), specifically can describe among the TS25.321 with reference to 3GPP; Selected transmission block size is directly proportional with the size of the power resource relevant information PRRI of network-assigned.The transformat that the terminal is chosen according to network authorization; The data set of the logic channel of choosing is dressed up up enhancing protocol Data Unit (the being called for short MAC-e PDU) form of media access control layer; And, on the E-PUCH physical channel, send through network TPC regulated transmission power.And SI reporting information aperiodically in MAC-e PDU.This SI information is mainly used in network reference when carrying out next time the E-AGCH scheduling.
4, network receives E-PUCH information on the resource of E-AGCH appointment; If understand correct; Then go up feedback acknowledgment (being called for short ACK) information and give the terminal, give the terminal otherwise feed back unacknowledged information (being called for short NACK), when non-scheduling method at the automatic repeat requests of the mixing of E-DCH transmission channel (being called for short HARQ) affirmation indicating channel (being called for short E-HICH); Also will carry the TPC control word, adjust the transmitted power of E-PUCH physical channel.
5, the terminal will be according to the RDI information in the E-AGCH authorization resources; The Radio Resource mode is used in representative according to RDI; At the different moment, repeating step 2,3,4, on the E-PUCH physical channel, send a plurality of MAC-e PDU up to using the unlimited resources that network assigns or having sent all data.
6, after all E-PUCH physical resources of assigning on the E-AGCH physical channel are finished using at the terminal, owing in E-PUCH, can carry SI information, network will reuse the E-AGCH dispatch terminal according to the SI information of carrying among the E-PUCH this moment.Thereby accomplish the continuous scheduling process of network to the terminal.
Can find out from above-mentioned flow process, in whole TD-HSUPA scheduling of resource transmission course, when the terminal occurs than high bit-error; When badly influencing transmission rate; Network mainly solves through two kinds of schemes: first kind, network can carry the transmitted power that TPC increases the E-PUCH channel through adjustment E-AGCH physical channel, and transmitted power is corresponding to be increased a bit; Send successful probability just more greatly, thereby reduce error code.Second kind, network can be through reducing power resource relevant information (being called for short PRRI) that the E-AGCH physical channel carries etc., makes the terminal when being E-TFC and selecting, and chooses the less E-TFC of TEBS.Send big data block, network is separated not right, and error code is very high, attempts sending little data block, and it is right that network just might be separated, thereby reaches the purpose that reduces the error rate.When high bit-error appearred in the terminal, network can reduce the error rate through these two kinds of methods, reached the purpose that promotes speed or steady rate.But these two kinds of methods, the network that all places one's entire reliance upon, network terminal is not in case the TPC adjustment of unusual or network and mandate adjustment are in time carried out, and terminal speed must be had a strong impact on.It is thus clear that, rely on the adjustment of network to resist the terminal high bit-error fully, reach mode stable and lifting speed and have defective.
Summary of the invention
The objective of the invention is to when the terminal UE error rate very high, and network is not when adjusting timely and effectively, the terminal reduces the error rate through own suitable adjustment, promotes or the effect of steady rate thereby reach.
For solving the problems of the technologies described above, the present invention proposes the upload control method of a kind of TD-HSUPA of reduction terminal error rate, and is as shown in Figure 2, comprising:
According to the residing threshold range of E-PUCH channel bit error rate Er that counts in the enhanced uplink physical channel E-PUCH mistake piece sliding window; Adopt different E-PUCH channel power control strategies; Come power control is carried out at the terminal; Adopt regulated transmission power, send at the enterprising line data of E-PUCH channel;
The residing threshold range of E-PUCH channel bit error rate that said basis counts on, adopt different E-PUCH channel power control strategies to be:
When Er＜th1, the control of the power of E-PUCH channel is controlled by the transmission power control TPC of network fully;
When th1＜Er＜th2; Response to network improves E-PUCH physical channel transmitted power through TPC; The TPC adjustment that reduces E-PUCH physical channel transmitted power for network will not respond, and continues to use last transmitted power on the E-PUCH channel, to send;
As Er＞th2, the terminal is clear 0 with the NACK number that counts in the window, restarts to add up the error rate; And judge whether network improves E-PUCH physical channel transmitted power through TPC, if having, then response, otherwise, do not respond adjustment this time, will on the basis of transmitted power last time, initiatively increase transmitted power with step-length upStep;
Wherein, step-length upStep span is 1 to 4 integer; Th1 and th2 are two error rate thresholdings according to the engineering experience definition, th1＜th2.
As another kind of preferred implementation, the residing threshold range of E-PUCH channel bit error rate that said basis counts on, adopt different E-PUCH channel power control strategies to be:
When Er＜=th3, the control of the power of E-PUCH channel is controlled by the TPC of network fully, and the TPC of network is responded in good time;
When Er＞th3, then whether the terminal judges network improves E-PUCH physical channel transmitted power through TPC, if having, and then response, if do not have, then the terminal initiatively increases transmitted power with step-length upStep on the basis of last once E-PUCH transmitted power;
The th3 span is [5%, 100%].
As another kind of preferred implementation, if the transmitted power P of terminal E-PUCH physical channel
E-PUCHReach maximum, and the error rate surpasses thresholding th4, then execution;
301. defined variable β
Max
302. judge β
MaxUpdate condition, whether P
E-PUCH＞=maximum transmission power Pmax, and the error rate Er＞th4 on the E-PUCH channel that counts on of terminal are if carry out 303, otherwise carry out 309;
Wherein, th4 span [5%, 90%];
303. upgrade β
Max, and with step-length upStep increase P
E-baseValue, be used to calculate the E-PUCH transmitted power; And open the punishment cycle, length is T * Count;
Wherein, T is that window is long, is unit with the scheduling times, is the Project Realization empirical value, span [6,640]; The Count initial value is 1, maximum 10;
Preferably, when the every appearance of repetitive process once, counter Count adds 1; Said repetitive process be for when the authorization resources PRRI that the primary network end carries through the E-AGCH channel occurring, by less than β
MaxChange β into
MaxProcess.
Calculating E-PUCH transmitted power P
E-PUCHThe time, formula is P
E-PUCH=PebaseTemp+L+ β
e+ TPC;
Wherein, L is a current area path loss information, β
eFor the terminal when strengthening transmission channel format combination E-TFC selection course, the power resource of institute's reference, TPC are emissive power control command,
304. judge whether in the punishment cycle, if carry out 305; Otherwise change and go to carry out 302;
305. judge β
MaxUpdate condition, whether P
E-PUCH＞=maximum transmission power Pmax, and the error rate Er＞th4 on the E-PUCH channel that counts on of terminal are if carry out 306, otherwise carry out 308;
306. upgrade β
Max, and with step-length upStep increase P
E-baseValue, be used to calculate the E-PUCH transmitted power;
308. in the punishment cycle, the terminal is carried out special E-TFC and is selected:
If the resource PRRI of network-assigned＞=β
Max, then force to calculate the used PRRI of E-TFC and be reduced to β
Max-1, otherwise, carry out the E-TFC selection course by resource that network is assigned; Carry out 304.
309. recover normal E-TFC selection course.
Preferably, after step 308, also comprise the determining step that the cycle of penalizing finishes in advance, if the power resource relevant information PRRI of the network-assigned of institute's reference that E-TFC selects is more than or equal to β
MaxHold time and surpass 2 * T, then Count zero clearing, the punishment cycle finishes in advance, changes and goes to carry out 309;
Compared with prior art; The present invention worsens at channel circumstance; And network does not have in time to adjust TPC or adjusts under the situation not in place, adopts the way of initiatively adjusting the terminal transmitted power according to the terminal error rate provided by the present invention, makes the power control at terminal more reasonable; To reduce the error rate greatly, reach the purpose of lifting and steady rate.On the other hand, through after the above adjustment, it is not right that network is still resolved chunk data; Do not have initiatively or in time to reduce yet and assign the power resource relevant information (being called for short PRRI) of giving the terminal to adjust the block size that terminal UE is sent, and produce high bit-error, when influencing speed; The terminal can be through special E-TFC selection course; Send little data block at the EPUCH channel, reduce the trial of resolving not right big data block and send number of times, reduce the error rate.
Description of drawings
Fig. 1 is a prior art TD-HSUPA scheduling of resource process sketch map
Fig. 2 is a kind of upload control method preferred implementation flow chart that reduces the TD-HSUPA terminal error rate of the present invention;
Fig. 3 is a kind of another preferred implementation flow chart of upload control method that reduces the TD-HSUPA terminal error rate of the present invention;
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer; Below in conjunction with accompanying drawing and execution mode; Upload control method to a kind of TD-HSUPA of reduction of the present invention terminal error rate is done further explain; Known implementation no longer details, to avoid there be unnecessary obscuring with content of the present invention.
Execution mode one
101. set the long T of E-PUCH mistake piece sliding window statistic window;
This window length is unit with the scheduling times; The terminal receives that the feedback information of network on the automatic repeat requests of the mixing of E-DCH transmission channel (being called for short HARQ) affirmation indicating channel (being called for short E-HICH) begins statistics; Receive E-HICH one time; Window long counter W adds 1, when W is increased to the long T of window, begins to slide.
Wherein, T is the Project Realization empirical value, span [6,640], preferred value 64.
The error rate Er of E-PUCH in the 102 statistics mistake piece sliding windows;
Mixing perhaps non-affirmation of the upward affirmation of feedback of automatic repeat requests (being called for short HARQ) affirmation indicating channel (being called for short E-HICH) (being called for short ACK) (being called for short NACK) information through network, NACK is whenever received at the terminal one time, and then the rrored Block Count device adds 1.
E-HICH sum W * 100% of receiving in the number of times Wnack/ window of NACK among the E-HICH that receives in the error rate Er=window.
The number of times statistical method of NACK:
When a NACK occurring, then Wnack adds 1;
Perhaps, get the number of times that different weights are added up NACK according to the number of times that the same TSN of transmitting Sequence Number retransmits, such as: TSN is 1 packet, retransmits N time, or NACK, then the number of times of corresponding NACK is Wnack=N.
E-HICH sum W comprises the quantity of correct and incorrect reception;
103., adopt different E-PUCH channel power control strategies according to the residing threshold range of E-PUCH channel bit error rate that counts on, transmission power control is carried out at the terminal, adopt regulated transmission power, send at the enterprising line data of E-PUCH channel.
103-1 counts on NACK number and unclear 0 in the window when Er＜th1, the terminal thinks that this moment, the error rate can be accepted, and does not do interference, and the power control of E-PUCH channel is controlled by the TPC of network fully, to the TPC response fully in good time of network.
103-2 is when th1＜Er＜th2; Count on NACK number also unclear 0 in the window this moment; The terminal thinks that the error rate of this moment is a bit too high, but also in the scope of standing, will be to power control the carry out suitable interference of network to the E-PUCH channel; Only response helps the adjustment at terminal; Promptly a response to network reduces the TPC adjustment of E-PUCH physical channel transmitted power and indicates and will not respond through the TPC adjustment indication that TPC improves E-PUCH physical channel transmitted power for network, continues to use last transmitted power on the E-PUCH channel, to send.
103-3 is as Er＞th2, and this moment, the terminal was clear 0 with the NACK number that counts in the window, restarted to add up the error rate.The terminal thinks that the error rate is too high at this moment, can not tolerate that speed has been subjected to and has had a strong impact on again; Then whether the terminal judges network improves E-PUCH physical channel transmitted power through TPC, if having, and then response; Otherwise; The terminal does not respond adjustment this time, will on the basis of transmitted power last time, initiatively increase transmitted power with step-length upStep oneself.
Wherein, step-length upStep span is 1 to 4 integer, preferably gets 1, and it is too fast to avoid the E-PUCH channel transmission power to increase, and is unfavorable for that network carries out multiple terminals UE power control.
Through initiatively promoting the means of terminal transmitted power, reach the purpose that increases the successful probability of transmission.
Th1 and th2 are two error rate thresholdings according to engineering experience definition, and span is all between 5% to 100%, and th1＜th2,
Preferably, repeating step 102-103 then can increase and send successful probability through the transmitted power of effective and reasonable adjustment E-PUCH channel, reduces the error rate.
Execution mode two
201-202. it is consistent with 101 and 102; ,
203. the error code thresholding th1 and the th2 that use in 103 can be united two into one, be called th3,
203-1 is when Er＜=th3, and the terminal thinks that this moment, the error rate can be accepted, and does not do interference, and the controlled fully TPC with network of the power control of E-PUCH channel responds the TPC of network in good time.,
203-2 is when Er＞th3, and then whether the terminal judges network improves E-PUCH physical channel transmitted power through TPC, if having; Then response; If no, then the terminal initiatively increases transmitted power with step-length upStep oneself on the basis of last once E-PUCH transmitted power; Through promoting the means of terminal transmitted power, reach the purpose that increases the successful probability of transmission.
Wherein, the th3 span is [5%, 100%], preferred value 10% or 20%;
This simplifies execution mode, judges scope because reduced the error code thresholding, and the terminal has implemented simply a lot, and also can produce a desired effect.
Though above embodiment is that example describes with the scheduling method of TD-HSUPA system; But the present invention is equally applicable to non-scheduling method; Difference is that network is when carrying out the adjustment of E-PUCH channel power; Scheduling method carries TPC through the E-AGCH channel, but not scheduling method carries the transmitted power that TPC adjusts the E-PUCH channel through the E-HICH channel, and other performing step scheduling method and non-scheduling method are just the same.
Execution mode three
If after the transmitting power adjustment through above-mentioned execution mode one or execution mode two; The error rate still maintains more than the preset thresholding, and this moment, network was adjusted to maximum with the transmitted power of E-PUCH physical channel, if perhaps network is not adjusted; And the terminal is through the used method of first step; Oneself increases the transmitted power of E-PUCH physical channel, also makes it reach maximum transmit power, then can launch this execution mode; Idiographic flow is referring to Fig. 3.
301. defined variable β
Max
302. judge β
MaxUpdate condition, whether P
E-PUCH＞=maximum transmission power Pmax, and the error rate Er＞th4 on the E-PUCH channel that counts on of terminal are if carry out 303, otherwise carry out 309;
Wherein, th4 span [5%, 90%];
303. upgrade β
Max, and with step-length upStep increase P
E-baseValue, be used to calculate the E-PUCH transmitted power; And open the punishment cycle, length is T * Count;
Wherein, T is that window is long, is unit with the scheduling times, is the Project Realization empirical value, span [6,640], preferred value 64; The Count initial value is 1, maximum 10;
According to the 5.1.1.6 trifle of 3GPP agreement TS25.224, the E-PUCH transmitted power:
P
E-PUCH＝P
e-base+L+β
e
Because P
E-PUCHReached maximum, the L value is a path loss information, because P
E-baseIncreased, then had only reduction β
e, could satisfy the equality relation, like this according to 3GPP; The E-TFC selection course is described among the TS25.321, and the terminal is when carrying out the E-TFC selection, and the power information of the network-assigned of reference has just diminished; Then selected transmission block size also possibly diminish, if the error rate in the window that counts on is very high always, and P
E-baseBe bound to slowly become big, then β
eBe bound to slowly diminish, selected transmission block will inevitably slowly diminish, until the terminal error rate is in an acceptable scope.
Wherein, β
eThe power resource relevant information PRRI that assigns at this moment according to network for the terminal carries out the ultimate authority performance number that E-TFC selects institute's reference, th4 span [5%, 90%], preferred value 10% or 20%;
304. judge whether in the punishment cycle, if carry out 305; Otherwise change and go to carry out 302;
Preferably, when the every appearance of repetitive process once, counter Count adds 1, makes to punish that next time Cycle Length increases.
Said repetitive process be for when the authorization resources PRRI that the primary network end carries through the E-AGCH channel occurring, by less than β
MaxChange β into
MaxProcess.
In the punishment cycle, the terminal is in the resource of carrying through the E-AGCH channel according to network, carries out E-TFC when selecting, the β of institute's reference
eShould be less than β
Max
305. judge β
MaxUpdate condition, whether P
E-PUCH＞=maximum transmission power Pmax, and the error rate Er＞th4 on the E-PUCH channel that counts on of terminal are if carry out 306, otherwise carry out 308;
306. upgrade β
Max, and with step-length upStep increase P
E-baseValue, be used to calculate the E-PUCH transmitted power;
Wherein the E-PUCH transmitted power is calculated consistent with 303.
307. restart the punishment cycle, length is T * Count, ongoing punishment cycle intrinsic parameter is clear 0, adds up the error rate again, changes and goes execution in step 308, carries out special E-TFC and selects; Perhaps do not restart the punishment cycle, keep the renewal of each relevant parameter in the punishment cycle, change and go to carry out 308, directly carry out special E-TFC and select.
308. in the punishment cycle, the terminal is carried out special E-TFC and is selected:
If the resource PRRI of network-assigned＞=β
Max, then force to calculate the used PRRI of E-TFC and be reduced to β
Max-1, otherwise, carry out the E-TFC selection course by resource that network is assigned.
Concrete E-TFC selection course can be with reference to describing among the 3GPP agreement TS25.321.
309. recover normal E-TFC selection course, carry out execution mode one or execution mode two;
Preferably, after step 308, also comprise the determining step that the cycle of penalizing finishes in advance, if the power resource relevant information PRRI of the network-assigned of institute's reference that E-TFC selects is more than or equal to β
MaxHold time and surpass 2 * T, then Count zero clearing, the punishment cycle finishes in advance, explain that network is fine to this big or small data block analytic ability this moment, need not punish that commentaries on classics goes to carry out 309 again.
Through above process, can guarantee that in the punishment cycle terminal is according to the error rate that counts on, when doing the E-TFC selection, the mandate of institute's reference can be authorized β greater than the reference of threshold value less than the error rate all the time
Max, make the transmission block TEBS index of selecting slowly diminish.
The terminal has reduced through the piece that the E-PUCH channel sends, and it is right that network just might be separated, and the error rate has just reduced.
Realization of the present invention is flexible and changeable, can reach different effects through changing error rate threshold value; Th2; Th3, the th4 value is big more, and then the power of E-PUCH channel many more times of control can be in the state that is controlled by network; Suitable threshold value can be selected according to the power control situation of network in the terminal.
Execution mode that the present invention lifts or embodiment have carried out further detailed description to the object of the invention, technical scheme and advantage; Institute is understood that; Abovely lift execution mode or embodiment is merely preferred implementation of the present invention; Not in order to restriction the present invention, all within spirit of the present invention and principle to any modification that the present invention did, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. upload control method that reduces the TD-HSUPA terminal error rate is characterized in that:
According to the residing threshold range of E-PUCH channel bit error rate Er that counts in the enhanced uplink physical channel E-PUCH mistake piece sliding window; Adopt different E-PUCH channel power control strategies; Power control is carried out at the terminal; Adopt regulated transmission power, send at the enterprising line data of E-PUCH channel;
The residing threshold range of E-PUCH channel bit error rate that said basis counts on, adopt different E-PUCH channel power control strategies to be:
When Er＜th1, the control of the power of E-PUCH channel is controlled by the transmission power control TPC of network fully;
When th1＜Er＜th2; Response to network improves E-PUCH physical channel transmitted power through TPC; The TPC adjustment that reduces E-PUCH physical channel transmitted power for network will not respond, and continues to use last transmitted power on the E-PUCH channel, to send;
As Er＞th2, the terminal is clear 0 with the NACK number that counts in the window, restarts to add up the error rate; And judge whether network improves E-PUCH physical channel transmitted power through TPC, if having, then response, otherwise, do not respond adjustment this time, and on the basis of transmitted power last time, initiatively increase transmitted power with step-length upStep;
Wherein, step-length upStep span is 1 to 4 integer; Th1 and th2 are two error rate thresholdings according to engineering experience definition, and span is all between 5% to 100%, and th1＜th2.
2. control method according to claim 1 is characterized in that th1 value 10%, th2 value 20%.
3. control method according to claim 1 is characterized in that the residing threshold range of E-PUCH channel bit error rate that said basis counts on adopts different E-PUCH channel power control strategies to be:
When Er＜=th3, the control of the power of E-PUCH channel is controlled by the TPC of network fully, and the TPC of network is responded in good time;
When Er＞th3, then whether the terminal judges network improves E-PUCH physical channel transmitted power through TPC, if having, and then response, if do not have, then the terminal initiatively increases transmitted power with step-length upStep on the basis of last once E-PUCH transmitted power;
Wherein, the th3 span is [5%, 100%].
4. like the said control method of claim 3, it is characterized in that th3 value 10% or 20%.
5. like the arbitrary said control method of claim 1-4, it is characterized in that above process repeats.
6. like the arbitrary said control method of claim 1-4; It is characterized in that; Network is when carrying out the adjustment of E-PUCH channel power, and scheduling method carries TPC through the E-AGCH channel, but not scheduling method carries the transmitted power that TPC adjusts the E-PUCH channel through confirming indicating channel E-HICH.
7. like the said control method of claim 5; It is characterized in that; Network is when carrying out the adjustment of E-PUCH channel power, and scheduling method carries TPC through the E-AGCH channel, but not scheduling method carries the transmitted power that TPC adjusts the E-PUCH channel through confirming indicating channel E-HICH.
8. like claim 1-4 or 7 arbitrary said control methods, it is characterized in that, if the transmitted power P of terminal E-PUCH physical channel
E-PUCHReach maximum, and error rate Er surpasses thresholding th4, then execution:
301. defined variable β
Max
302. judge β
MaxUpdate condition, whether P
E-PUCH＞=maximum transmission power Pmax, and the error rate Er＞th4 on the E-PUCH channel that counts on of terminal are if carry out 303, otherwise carry out 309;
303. upgrade β
Max, and with step-length upStep increase P
E-baseValue, be used to calculate the E-PUCH transmitted power; And open the punishment cycle, length is T * Count;
304. judge whether in the punishment cycle, if carry out 305; Otherwise change and go to carry out 302;
305. judge β
MaxUpdate condition, whether P
E-PUCH＞=maximum transmission power Pmax, and the error rate Er＞th4 on the E-PUCH channel that counts on of terminal are if carry out 306, otherwise carry out 308;
306. upgrade β
Max, and with step-length upStep increase P
E-baseValue, be used to calculate the E-PUCH transmitted power;
308. in the punishment cycle, the terminal is carried out special E-TFC and is selected:
If the resource PRRI of network-assigned＞=β
Max, then force to calculate the used PRRI of E-TFC and be reduced to β
Max-1, otherwise, carry out the E-TFC selection course by resource that network is assigned; Carry out 304;
309. recover normal E-TFC selection course;
Wherein, th4 span [5%, 90%], T is that window is long, is unit with the scheduling times, is the Project Realization empirical value, span [6,640]; The Count initial value is 1, maximum 10.
9. like the said control method of claim 8, it is characterized in that, opening punishment described in the step 303 during the cycle, when the every appearance of repetitive process once, counter Count adds 1; Said repetitive process be for when the authorization resources PRRI that the primary network end carries through the E-AGCH channel occurring, by less than β
MaxChange β into
MaxProcess.
10. like the said control method of claim 9, it is characterized in that, after step 308, also comprise the determining step that the punishment cycle finishes in advance, if the power resource relevant information PRRI of the network-assigned of institute's reference that E-TFC selects is more than or equal to β
MaxHold time and surpass 2 * T, then Count zero clearing, the punishment cycle finishes in advance, changes and goes to carry out 309.
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| WO2013120245A1 (en) * | 2012-02-13 | 2013-08-22 | St-Ericsson Sa | Method and apparatus for uplink data transmission, user equipment, computer program and storage medium |
| US9113467B2 (en) | 2013-02-28 | 2015-08-18 | Qualcomm Incorporated | Adjusting initial transmit power for high speed data transmission |
| WO2014190481A1 (en) * | 2013-05-28 | 2014-12-04 | 华为技术有限公司 | Data block length determination method, device and user equipment |
| CN104684089B (en) * | 2013-12-02 | 2018-07-17 | 北京信威通信技术股份有限公司 | A kind of speech bandwidth method for pre-distributing and device |
| CN104717738B (en) * | 2013-12-17 | 2018-12-14 | 华为技术有限公司 | Uplink power synchronous method, access network equipment and terminal |
| CN110475332A (en) * | 2019-08-30 | 2019-11-19 | 南京大鱼半导体有限公司 | Adjust method, apparatus, storage medium and the terminal of power |
| CN115603870B (en) * | 2022-09-02 | 2024-05-28 | 杭州航天电子技术有限公司 | Buffer-free bit error rate real-time detection method based on increment number |
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