CN101925165B - Power control method and device for uplink physical channel - Google Patents

Abstract

The embodiment of the invention discloses a power control device for an uplink physical channel. The power control device comprises a relative gain factor calculation unit, a code channel correction unit and a gain factor generation unit. The embodiment of the invention also discloses a power control method for the uplink physical channel, which comprises the following steps of: calculating a relative gain factor under a compression mode; performing code channel correction on the calculated relative gain factor; generating a gain factor under the compression mode according to the corrected relative gain factor; and controlling the power according to the gain factor under the compression mode. After the relative gain factor under the compression mode is calculated, the calculated relative gain factor is corrected through a code channel correction parameter which reflects the relationship between the code channel number under the compression mode and the code channel number under a non-compression mode, the gain factor under the compression mode is generated according to the corrected relative gain factor, and weighting operation is performed on the generated gain factor to obtain accurate power offset.

Description

The Poewr control method of uplink physical channel and device

Technical field

The present invention relates to Poewr control method, particularly the Poewr control method of uplink physical channel and device.

Background technology

Wideband Code Division Multiple Access (WCDMA) (WCDMA) system uses spread spectrum to reduce Signal transmissions average power in physical channel and signal to noise ratio, and in spreading procedure, carries out gain factor weighted calculation to signal transmission, realizes controlling the power of signal.

Wherein, physical channel can carry out Signal transmissions by compact model or non-compressed mode.When being transmitted by non-compressed mode, the gain factor for weighting can be provided by radio network controller (RadioNetwork Controller, RNC), and the configuration data that also can provide according to RNC calculates and gets.And when by compressed mode transmission, for the gain factor of weighting, then need different transformat combination (the Transport FormatCombination configured under non-compressed mode according to physical channel, TFC) corresponding gain factor information, with compact model information, calculating gets.Wherein, compact model information comprises: uplink physical channel in a compressed mode with the parameters such as the uncompressed number of time slot in the pilot bits number of each time slot under non-compressed mode, condensed frame.

But many code channels uplink physical channel of some bearer service data, in a compressed mode, code channel number can change.Such as, because the uncompressed number of time slot in condensed frame is less, the true form number of channels that TFC is corresponding cannot carry the data volume corresponding to TFC, thus code channel number corresponding to same TFC may be caused to change, more than the code channel number under non-compressed mode.

Such as, at many code channels uplink Dedicated Physical Data channel (DedicatedPhysical Data Channel of bearer service data, DPDCH) in, each code channel uses identical gain factor usually, therefore, when code channel number is n, to the data-signal of all code channels with by special physical controlling channel of upward (Dedicated Physical Control Channel, DPCCH) control signal transmitted is weighted, and the signal power obtained is: n × DPDCH gain factor × code channel power+DPCCH gain factor × channel power; And when code channel number becomes n+1 from n, the signal power obtained is: (n+1) × DPDCH gain factor × code channel power+DPCCH gain factor × channel power, power bias is higher.

Visible, prior art is not considered in a compressed mode, because code channel number changes the impact brought, therefore, can not ensure in a compressed mode, calculate gain factor accurately, obtain correct power bias.

Summary of the invention

Embodiments provide a kind of Poewr control method and device of uplink physical channel, in a compressed mode, correct power bias can be obtained.

The Poewr control method of the uplink physical channel that the embodiment of the present invention provides, comprising:

Calculate the relative gain factor under compact model;

Code channel correction is carried out to the described relative gain factor calculated;

According to the described revised relative gain factor, generate the gain factor under compact model;

Power control is carried out according to the gain factor under the compact model of described generation.

The output control device of the uplink physical channel that the embodiment of the present invention provides, for carrying out power control according to the gain factor under compact model, comprising:

Relative gain factor calculating unit, for calculating the relative gain factor under compact model;

Code channel amending unit, for calculating code channel corrected parameter, and carries out code channel correction according to the described code channel corrected parameter calculated to the relative gain factor from described relative gain factor calculating unit;

Gain factor generating unit, for according to the revised relative gain factor of described code channel amending unit, generates the gain factor under compact model.

As seen from the above technical solution, in the embodiment of the present invention, after calculating the relative gain factor under compact model, the code channel corrected parameter of the relation of the code channel number under compact model and the code channel number under non-compressed mode is reflected by one, the relative gain factor calculated is revised, eliminate the impact brought because code channel number is inconsistent, again according to the relative gain factor revised, generate the gain factor under compact model, pass through generated gain factor to compute weighted, obtain power bias accurately.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the exemplary block diagram of the output control device of embodiment of the present invention uplink physical channel;

Fig. 2 is the exemplary method flowchart that the power of embodiment of the present invention uplink physical channel controls;

Fig. 3 is the structure chart of the output control device of uplink physical channel in the embodiment of the present invention one;

Fig. 4 is the flow chart of the Poewr control method of uplink physical channel in the embodiment of the present invention one;

Fig. 5 is the structure chart of the output control device of uplink physical channel in the embodiment of the present invention two;

Fig. 6 is the flow chart of the Poewr control method of uplink physical channel in the embodiment of the present invention two.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

For enabling above-mentioned purpose, the feature and advantage of the embodiment of the present invention more become apparent, below in conjunction with the drawings and specific embodiments, the embodiment of the present invention is described in further detail.

In the embodiment of the present invention, after calculating the relative gain factor under compact model, by the code channel corrected parameter of relation between the code channel number under reflection compact model and the code channel number under non-compressed mode, the relative gain factor calculated is revised, eliminate by the inconsistent impact brought of code channel number, again according to the relative gain factor revised, generate the gain factor under compact model.

Wherein, code channel corrected parameter is the extracting operation result with the ratio of the code channel number under compact model under non-compressed mode, also can for the parameter obtained by other data or operation method.

In spreading procedure, according to what generated by the relative gain factor through code channel correction, the gain factor under compact model, computes weighted.

Fig. 1 is the exemplary block diagram of the output control device of uplink physical channel of the present invention.As shown in Figure 1, the output control device of uplink physical channel of the present invention comprises: relative gain factor calculating unit 101, code channel amending unit 102 and gain factor generating unit 103.

Relative gain factor calculating unit 101, for according to the parameter from outside, calculates the relative gain factor under compact model, and result of calculation is sent to code channel amending unit 102;

Code channel amending unit 102, for according to the code channel number under compact model corresponding to current TFC and the code channel number under non-compressed mode, calculate code channel corrected parameter, and according to the code channel corrected parameter calculated, code channel correction is carried out to the relative gain factor from relative gain factor calculating unit 101; The revised relative gain factor of code channel will be carried out and sent to gain factor generating unit 103;

Gain factor generating unit 103, for according to the revised relative gain factor from code channel amending unit 102, generates the gain factor under compact model, and the gain factor got is sent to outside spread spectrum system.

Fig. 2 is the exemplary method flowchart that the power of uplink physical channel of the present invention controls.As shown in Figure 2, the Poewr control method of uplink physical channel in the present invention, comprises the following steps:

Step 201, calculates the relative gain factor under compact model;

Step 202, carries out code channel correction to the relative gain factor calculated;

Step 203, according to the revised relative gain factor, generates the gain factor under compact model;

Step 204, carries out power control according to the gain factor under described compact model.

Wherein, step 201 calculates the process of the gain factor under compact model, can be same as the prior art.

After above-mentioned flow process, the gain factor calculated is supplied to spread spectrum system, the signal of many code channels is computed weighted, correct signal power can be obtained and be biased.

Below, in conjunction with specific embodiments, the output control device of uplink physical channel in the present invention and method are described in detail.

Embodiment one

The present embodiment is the control signal corresponding to the business datum in up DPDCH, DPDCH for the uplink physical channel of bearer service data, is transmitted by DPCCH.

Fig. 3 is the structure chart of the output control device of uplink physical channel in the embodiment of the present invention one.As shown in Figure 3, in the embodiment of the present invention, the output control device of uplink physical channel comprises: the gain factor generating unit P 303 of the relative gain factor calculating unit P 301 of DPDCH, the code channel amending unit P 302 of DPDCH and DPDCH.

The relative gain factor calculating unit P 301 of DPDCH comprises: uncompressed parameter calculating module 311, compact model correcting module 312 and computing module 313.

Uncompressed parameter calculating module 311, for asking outside RNC to provide, under non-compressed mode, the gain factor β of the DPDCH that current TFC is corresponding _{d, j}with the gain factor β of DPCCH _{c, j}business, and using the relative gain factors A of result of calculation under non-compressed mode _j, send to computing module 313.Wherein, j represents a jth TFC, i.e. current TFC.

Compact model correcting module 312, for asking the pilot bits number N of each time slot of DPCCH under non-compressed mode _{pilot, N}with the uncompressed timeslot number N in condensed frame _{slots, C}product, and ask N _{pilot, C}with 15 product; Ask N _{pilot, C}with 15 product, with N _{pilot, N}and N _{slots, C}the business of product, and operation result is carried out extracting operation, and using extracting operation result as Compression Correction parameter, sends to computing module 313.

Computing module 313, for calculating the A from uncompressed parameter calculating module 311 _jwith the product of the Compression Correction parameter from compact model correcting module 312, by the product obtained, as the relative gain factor under compact model, send to the code channel amending unit P 302 of DPDCH.

The code channel amending unit P 302 of DPDCH, under asking non-compressed mode, the code channel number of the DPDCH that current TFC is corresponding, with under compact model, the business of the code channel number of the DPDCH that current TFC is corresponding, and operation result is carried out extracting operation, obtain code channel corrected parameter; Ask the product of the relative gain factor under code channel corrected parameter and compact model, code channel correction is carried out to the relative gain factor under compact model, by the relative gain factors A under revised compact model _{c, j}send to the gain factor generating unit P 303 of DPDCH.

The gain factor generating unit P 303 of DPDCH, for the A of basis from the code channel amending unit of DPDCH _{c, j}, inquiry β _cand β _dquantization table, at A _{c, j}when being less than or equal to 1, from β _cand β _din quantization table, inquiry is more than or equal to A _{c, j}minimum quantization amplitude rate, by the quantized amplitudes rate inquired, as the gain factor β under compact model _{d, C, j}, by the gain factor β of DPCCH _{c, C, j}be set to 1; At A _{c, j}when being greater than 1, by β _{d, C, j}be set to 1, from β _cand β _din quantization table, inquiry is less than or equal to A _{c, j}maximum quantization amplitude rate reciprocal, by the quantized amplitudes rate inquired, as β _{c, C, j}; By β _{d, C, j}and β _{c, C, j}be sent to the spread spectrum system of device outside.

In the device of the present embodiment, also can comprise other functional units.

Below, the Poewr control method based on said apparatus is described in detail.

Fig. 4 is the flow chart of the Poewr control method of uplink physical channel in the embodiment of the present invention one.As shown in Figure 4, the Poewr control method of uplink physical channel in the embodiment of the present invention, comprises the following steps:

Step 401, under calculating non-compressed mode, the relative gain factors A of DPDCH and DPCCH _j, compact model corrected parameter, wherein, calculate A _jmethod be: under the non-compressed mode asking RNC to provide, the gain factor β of the DPDCH that current TFC is corresponding _{d, j}, with the gain factor β of DPCCH _{c, j}business, the method can be expressed as:

$A_j=\frac{{\mathrm{\β}}_{d,j}}{{\mathrm{\β}}_{c,j}}$

Wherein, β _{d, j}and β _{c, j}, directly issued by signaling by RNC, also can be the up channel of only specifying according to RNC gets with reference to the exploitation of the gain factor corresponding to TFC.

The method calculating compact model corrected parameter is: the bit number N asking the pilot tone of each time slot of DPCCH under non-compressed mode _{pilot, N}with the uncompressed timeslot number N in condensed frame _{slots, C}product; Ask the bit number N of the pilot tone of each time slot of DPCCH under compact model _{pilot, C}with 15 product; By the N calculated _{pilot, C}with 15 product, divided by N _{pilot, N}and N _{slots, C}product, the business obtained is carried out extracting operation, and the method can be expressed as:

Wherein, N _{pilot, N}, N _{slots, C}and N _{pilot, C}, be that the configuration data calculating issued when determining transmission mode according to RNC gets.

Step 402, calculates the relative gain factor under compact model, asks A _jwith the product of compact model corrected parameter.

Step 403, calculates code channel corrected parameter, asks under non-compressed mode, the code channel number L of the DPDCH that current TFC is corresponding _j, with under compact model, the code channel number L of the DPDCH that current TFC is corresponding _{c, j}business, and the business that will calculate, carry out extracting operation, the method can be expressed as:

In this step, code channel corrected parameter also can be calculated by additive method; When under compact model, the code channel number of the DPDCH that same TFC is corresponding does not change, then code channel corrected parameter is 1.

Step 404, according to code channel corrected parameter, revises the relative gain factor under compact model, asks the product of the relative gain factor under code channel corrected parameter and compact model, obtain the relative gain factors A under revised compact model _{c, j}, the method can be expressed as:

$A_{c,j}=A_j\·\sqrt{\frac{15\·N_{\mathrm{pilot},N}\·A_{C,j}}{N_{\mathrm{slots},C}\·N_{\mathrm{pilot},N}}}\·\sqrt{\frac{L_j}{L_{c,j}}}$

Step 405, according to A _{c, j}, β _cand β _dquantization table, obtains the gain factor β having carried out the revised DPDCH of code channel _{d, C, j}with the gain factor β of DPCCH _{c, C, j}, β _cand β _dquantization table is as shown in table 1.Work as A _{c, j}when being less than or equal to 1, from β _cand β _din quantization table, inquiry is more than or equal to A _{c, j}minimum quantization amplitude rate, by the quantized amplitudes rate inquired, as the gain factor β under compact model _{d, C, j}, by the gain factor β of DPCCH _{c, C, j}be set to 1; Work as A _{c, j}when being greater than 1, by β _{d, C, j}be set to 1, from β _cand β _din quantization table, inquiry is less than or equal to A _{c, j}maximum quantization amplitude rate reciprocal, by the quantized amplitudes rate inquired, as β _{c, C, j}.

β cAnd β dSignal value	β cAnd β dQuantized amplitudes rate
		15	1.0
14	14/15
		13	13/15
12	12/15
		11	11/15
10	10/15
		9	9/15
8	8/15
		7	7/15
6	6/15
		5	5/15
4	4/15
		3	3/15
2	2/15
		1	1/15
0	Cut off

Table 1

Such as, A is worked as _{c, j}when=0.5, β _{c, C, j}=1, from β _cand β _dquantization table inquiry is more than or equal to the minimum quantization amplitude rate of 0.5, β _{d, C, j}=8/15; Work as A _{c, j}when=6, β _{d, C, j}=1, from β _cand β _dquantization table inquiry is less than or equal to the minimum quantization amplitude rate of 1/6, β _{c, C, j}=2/15; Also have a kind of special circumstances, work as A _{c, j}when being more than or equal to 1, be less than or equal to A _{c, j}maximum quantization amplitude rate reciprocal is 0, now, and β _{c, C, j}=1/15.

Step 406, by β _{d, C, j}and β _{c, C, j}be sent to spread spectrum system, the business datum of each code channel and the control signal of DPCCH are computed weighted.

In above-mentioned flow process, also can calculate A by additive method _j, compact model corrected parameter and code channel corrected parameter.

The output control device of the present embodiment and method, be also applicable in other mobile communication system, and the power of many code channels physical channel controls.

Embodiment two

The present embodiment with the uplink physical channel of bearer service data for special physical data channel for upload enhance (E-DCH Dedicated Physical Data Channel, E-DPDCH) be example, control signal corresponding to business datum in E-DPDCH, is transmitted by E-DPCCH.In a compressed mode, when the transmission time interval (Transmission Time Interval, TTI) of E-DPCCH is for 10ms, the phenomenon that code channel number changes may be there is, therefore, in the present embodiment, gain factor when being mainly 10ms to TTI is revised.

Due to E-DPDCH comprise many code channels time, exist spreading factor (SF) be 2 and be 4 code channel and the possibility of depositing, therefore, many yards of corresponding gain factors may be different, in the embodiment of the present invention, when calculating code channel number, by each SF be 2 E-DPDCH code channel be converted into the E-DPDCH code channel that 2 SF are 4, and when ranking operation, be the gain factor of the EPDCH code channel of 2 by SF, being set to SF is the gain factor of the E-DPDCH code channel of 4 doubly.

Fig. 5 is the structure chart of the output control device of uplink physical channel in the embodiment of the present invention two.As shown in Figure 5, in the embodiment of the present invention, the output control device of uplink physical channel at least comprises in the output control device of embodiment one, the gain factor generating unit P 303 of the relative gain factor calculating unit P 301 of DPDCH, the code channel amending unit P 302 of DPDCH and DPDCH, in the output control device of the present embodiment, also comprise: the gain factor generating unit E 503 of the relative gain factor calculating unit E 504 of E-DPDCH, the code channel amending unit E 505 of E-DPDCH and E-DPDCH.

The relative gain factor calculating unit E 504 of E-DPDCH, for being condensed frame at present frame, and when TTI is 10ms, according to reference to the E-DPDCH gain factor β corresponding under non-compressed mode of E-TFC _{ed, ref}, the gain factor β of DPCCH under non-compressed mode _c, with reference to E-TFC E-DPDCH code channel number L corresponding under non-compressed mode _{e, ref}, the E-DPDCH code channel number L corresponding under non-compressed mode of current E-TFC _{e, i}, with reference to channel parameter K corresponding to E-TFC _{e, ref}, channel parameter K that current E-TFC is corresponding _{e, i}, MAC-d flow enhancement factor Δ _harq, the bit number N of the pilot tone of the every time slot of DPCCH channel under compact model _{pilot, C}, the bit number N of the pilot tone of the every time slot of DPCCH channel under non-compressed mode _{pilot, N}, the corresponding uncompressed timeslot number N just passing frame of current process frame _{slots, I}, the relative gain factor of E-DPDCH and DPCCH under calculating compact model; Wherein, i represents i-th E-TFC, i.e. current E-TFC.Present frame be non-compressed frames, the first biography frame of current process is condensed frame, and when TTI is 10ms, according to reference to the E-DPDCH gain factor β corresponding under non-compressed mode of E-TFC _{ed, ref}, the gain factor β of DPCCH under non-compressed mode _c, with reference to E-TFC E-DPDCH code channel number L corresponding under non-compressed mode _{e, ref}, the E-DPDCH code channel number L corresponding under non-compressed mode of current E-TFC _{e, i}, with reference to channel parameter K corresponding to E-TFC _{e, ref}, channel parameter K that current E-TFC is corresponding _{e, i}, MAC-d flow enhancement factor Δ _harq, the corresponding uncompressed timeslot number N just passing frame of current process frame _{slots, I}, the relative gain factor of E-DPDCH and DPCCH under calculating compact model; The relative gain factor calculated is sent to the code channel amending unit E 505 of E-DPDCH.

The code channel amending unit E 505 of E-DPDCH, for the E-DPDCH code channel number L that current E-TFC under asking non-compressed mode is corresponding _{e, i}, with the E-DPDCH code channel number L of the first biography frame corresponding to current process frame _{e, I, i}business, and the business that will calculate, carries out extracting operation, obtains code channel corrected parameter; Ask code channel corrected parameter and the product from the relative gain factor of E-DPDCH and DPCCH under the compact model of the relative gain factor calculating unit E 504 of E-DPDCH, code channel correction is carried out to the relative gain factor under compact model, by the relative gain factors A under revised compact model _{c, ed}send to the gain factor generating unit E 506 of E-DPDCH.

The gain factor generating unit E 506 of E-DPDCH, for being condensed frame at present frame, and when TTI is 10ms, calculates the gain factor generating unit P 303 from DPDCH, the gain factor β of DPCCH channel under compact model _{c, C, j}, with the A of the code channel amending unit E505 from E-DPDCH _{c, ed}product, this product is the gain factor β of E-PDPCH under compact model _{ed, C, i}, by β _{ed, C, i}and β _{c, C, j}be sent to the spread spectrum system of device outside; Present frame be non-compressed frames, the first biography frame of current process is condensed frame, and when TTI is 10ms, under calculating the non-compressed mode that RNC provides, current TFC is corresponding, and the gain factor β c of DPCCH, with the A of the code channel amending unit E 505 from E-DPDCH _{c, ed}product, this product is the gain factor β of E-DPDCH under compact model _{ed, R, i}, by β _{ed, R, i}and β _cbe sent to the spread spectrum system of device outside.

In the device of the present embodiment, also can comprise other functional units; The relative gain factor calculating unit E 504 of E-DPDCH is when TTI is 2ms, method conventionally, calculate the relative gain factor of E-DPDCH and DPCCH, and be directly sent to gain factor generating unit E303, do not need to carry out code channel correction.

Below, the Poewr control method based on said apparatus is described in detail.

Fig. 6 is the flow chart of the Poewr control method of uplink physical channel in the embodiment of the present invention two.As shown in Figure 6, the Poewr control method of uplink physical channel in the embodiment of the present invention, comprises the following steps:

Step 601, judge whether the Frame of current transmission be whether the first biography frame of condensed frame and current process is condensed frame, if present frame is condensed frame, and TTI is 10ms, then according under following formulae discovery compact model, the relative gain factor of E-DPDCH and DPCCH:

Wherein, A _edfor the E-DPDCH/DPCCH relative gain factor with reference to E-TFC correspondence under non-compressed mode β _{ed, ref}for the E-DPDCH gain factor with reference to E-TFC correspondence under non-compressed mode, β _cfor the gain factor of DPCCH under non-compressed mode, β _{ed, ref}with β _cbe the up channel of specifying according to the RNC value with reference to the gain factor corresponding to E-TFC, calculate and get;

L _{e, ref}and L _{e, i}represent that spreading factor is the code channel of 2 with reference to E-TFC and current E-TFC E-DPDCH code channel number corresponding under non-compressed mode respectively, when calculating, conversion is 2 spreading factors is the code channel of 4;

K _{e, ref}and K _{e, i}being with reference to transport channel parameters corresponding to E-TFC and current E-TFC, is pre-configured data;

Δ _harqthe MAC-d flow enhancement factor, from RNC;

N _{pilot, C}and N _{pilot, N}be respectively the bit number of the pilot tone of the every time slot of DPCCH channel under compact model and non-compressed mode, the configuration data provided according to RNC calculates and gets;

N _{slot, I}the uncompressed number of time slots of frame is just passed corresponding to current process frame;

If present frame is non-compressed frames and the first biography frame of current process is condensed frame, and TTI is 10ms, then according under following formulae discovery compact model, the relative gain factor of E-DPDCH and DPCCH:

Wherein, the physical significance of each parameter is identical with the parameter in the above-mentioned computational process when present frame is condensed frame.

Step 602, calculates code channel corrected parameter, the E-DPDCH code channel number L that under asking non-compressed mode, current E-TFC is corresponding _{e, i}, with the E-DPDCH code channel number business L of the first biography frame corresponding to current process frame _{e, I, i}, and the business that will calculate, carry out extracting operation, the method can be expressed as:

In this step, code channel corrected parameter also can be calculated by additive method; When under compact model, when TTI is 10ms, the code channel number of the E-DPDCH that same E-TFC is corresponding does not change, then code channel corrected parameter is 1.

Step 603, according to code channel corrected parameter, under compact model, the E-DPDCH/DPCCH relative gain factor is revised, if the TTI of E-DPDCH is 10ms, and present frame is condensed frame, then correction result A _{c, ed}be expressed as:

$A_{C,\mathrm{ed}}=A_{\mathrm{ed}}\·\sqrt{\frac{L_{e,\mathrm{ref}}}{L_{e,i}}}\·\sqrt{\frac{K_{e,i}}{K_{e,\mathrm{ref}}}}\·{10}^{\left(\frac{{\mathrm{\Δ}}_{\mathrm{harq}}}{20}\right)}\·\sqrt{\frac{{15\·N}_{\mathrm{pilot},C}}{N_{\mathrm{slots},I}\·N_{\mathrm{pilot},N}}}\·\sqrt{\frac{L_{e,i}}{L_{e,I,i}}}$

This expression formula can be reduced to:

$A_{C,\mathrm{ed}}=A_{\mathrm{ed}}\·\sqrt{\frac{L_{e,\mathrm{ref}}}{L_{e,i}}}\·\sqrt{\frac{K_{e,i}}{K_{e,\mathrm{ref}}}}\·{10}^{\left(\frac{{\mathrm{\Δ}}_{\mathrm{harq}}}{20}\right)}\·\sqrt{\frac{{15\·N}_{\mathrm{pilot},C}}{N_{\mathrm{slots},I}\·N_{\mathrm{pilot},N}}}$

If the TTI of E-DCH is 10ms, present frame is non-compressed frames, and first biography frame corresponding to process is condensed frame, then correction result A _{c, ed}can be expressed as:

$A_{C,\mathrm{ed}}=A_{\mathrm{ed}}\·\sqrt{\frac{L_{e,\mathrm{ref}}}{L_{e,i}}}\·\sqrt{\frac{K_{e,i}}{K_{e,\mathrm{ref}}}}\·{10}^{\left(\frac{{\mathrm{\Δ}}_{\mathrm{harq}}}{20}\right)}\·\sqrt{\frac{15}{N_{\mathrm{slots},I}}}\·\sqrt{\frac{L_{e,i}}{L_{e,I,i}}}$

This expression formula can be reduced to:

$A_{C,\mathrm{ed}}=A_{\mathrm{ed}}\·\sqrt{\frac{L_{e,\mathrm{ref}}}{L_{e,i}}}\·\sqrt{\frac{K_{e,i}}{K_{e,\mathrm{ref}}}}\·{10}^{\left(\frac{{\mathrm{\Δ}}_{\mathrm{harq}}}{20}\right)}\·\sqrt{\frac{15}{N_{\mathrm{slots},I}}}$

Step 604, the TTI of E-DPDCH is 10ms, and when present frame is condensed frame, the gain factor β of DPCCH channel under calculating compact model _{c, C, j}if the DPDCH number of channel is 1, β _{c, C, j}obtained by the step 401 ~ step 405 in embodiment one; If the DPDCH number of channel is 0, then β _{c, C, j}=1.0, and according to A _{c, ed}and β _{c, C, j}, the gain factor β of E-DPDCH under generation compact model _{ed, C, i}, calculate A _{c, ed}with β _{c, C, j}product, computational process can be expressed as:

${\mathrm{\β}}_{\mathrm{ed},C,i}={\mathrm{\β}}_{c,C,j}\·A_{\mathrm{ed}}\·\sqrt{\frac{L_{e,\mathrm{ref}}}{L_{e,i}}}\·\sqrt{\frac{K_{e,i}}{K_{e,\mathrm{ref}}}}\·{10}^{\left(\frac{{\mathrm{\Δ}}_{\mathrm{harq}}}{20}\right)}\·\sqrt{\frac{15\·N_{\mathrm{pilot},C}}{N_{\mathrm{slots},I}\·N_{\mathrm{pilot},N}}}\·\sqrt{\frac{L_{e,i}}{L_{e,I,i}}}$

This expression formula can be reduced to:

${\mathrm{\β}}_{\mathrm{ed},C,i}={\mathrm{\β}}_{c,C,j}\·A_{\mathrm{ed}}\·\sqrt{\frac{L_{e,\mathrm{ref}}}{L_{e,i}}}\·\sqrt{\frac{K_{e,i}}{K_{e,\mathrm{ref}}}}\·{10}^{\left(\frac{{\mathrm{\Δ}}_{\mathrm{harq}}}{20}\right)}\·\sqrt{\frac{15\·N_{\mathrm{pilot},C}}{N_{\mathrm{slots},I}\·N_{\mathrm{pilot},N}}}$

The TTI of E-DCH is 10ms, and present frame is non-compressed frames, and when first biography frame corresponding to process is condensed frame, according to A _{c, ed}and β _c, the gain factor β of E-DPDCH under generation compact model _{ed, R, i}, calculate A _{c, ed}with β _cproduct, computational process can be expressed as:

${\mathrm{\β}}_{\mathrm{ed},R,i}={\mathrm{\β}}_c\·A_{\mathrm{ed}}\·\sqrt{\frac{L_{e,\mathrm{ref}}}{L_{e,i}}}\·\sqrt{\frac{K_{e,i}}{K_{e,\mathrm{ref}}}}\·{10}^{\left(\frac{{\mathrm{\Δ}}_{\mathrm{harq}}}{20}\right)}\·\sqrt{\frac{15}{N_{\mathrm{slots},I}}}\·\sqrt{\frac{L_{e,i}}{L_{e,I,i}}}$

This expression formula can be reduced to:

${\mathrm{\β}}_{\mathrm{ed},R,i}={\mathrm{\β}}_{\mathrm{ed},\mathrm{ref}}\·\sqrt{\frac{L_{e,\mathrm{ref}}}{L_{e,I,i}}}\·\sqrt{\frac{K_{e,i}}{K_{e,\mathrm{ref}}}}\·{10}^{\left(\frac{{\mathrm{\Δ}}_{\mathrm{harq}}}{20}\right)}\·\sqrt{\frac{15}{N_{\mathrm{slots},I}}}$

Wherein, β _cfor under non-compressed mode, the gain factor of the DPCCH that current TFC is corresponding, is provided by RNC, or the gain factor of DPCCH corresponding to the reference TFC provided according to RNC calculates and gets;

Step 605, the TTI of E-DPDCH is 10ms, and when present frame is condensed frame, by β _{ed, C, i}and β _{c, C, j}be sent to spread spectrum system, the business datum of each code channel and the control signal of DPCCH are computed weighted;

The TTI of E-DCH is 10ms, and present frame is non-compressed frames, and when first biography frame corresponding to process is condensed frame, by β _{ed, R, i}and β _cbe sent to spread spectrum system, the business datum of each code channel and the control signal of DPCCH are computed weighted.

Above-mentioned flow process, also may be used for when TTI is other values.The described relative gain factor also can be revised by additive method, and each parameter also can be calculated by additive method and get.When the TTI of E-DCH is 2ms, can method conventionally, calculate the relative gain factor of E-DPDCH and DPCCH, do not need to carry out code channel correction.

The Poewr control method of the embodiment of the present invention is also applicable to the power control of many code channels physical channel in other mobile communication system.

The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (2)

1. a method for the calculated gains factor, is characterized in that, comprising:

Present frame be condensed frame and the transmission time interval (TTI) of special physical data channel for upload enhance (E-DPDCH) for 10ms time, calculate the gain factor β of E-DPDCH under compact model _{ed, C, i}, computational process is expressed as:

${\mathrm{\β}}_{\mathrm{ed},C,i}={\mathrm{\β}}_{c,C,j}\·A_{\mathrm{ed}}\·\sqrt{\frac{L_{e,\mathrm{ref}}}{L_{e,I,i}}}\·\sqrt{\frac{K_{e,i}}{K_{e,\mathrm{ref}}}}\·{10}^{\left(\frac{{\mathrm{\Δ}}_{\mathrm{harq}}}{20}\right)}\·\sqrt{\frac{15\·N_{\mathrm{pilot},C}}{N_{\mathrm{slots},I}\·N_{\mathrm{pilot},N}}}$

Wherein, β _{c, C, j}for the gain factor of Dedicated Physical Control Channel under compact model (DPCCH); β _{ed, ref}for the E-DPDCH gain factor with reference to enhancing transformat combination (E-TFC) correspondence under non-compressed mode, β _cfor the gain factor of DPCCH under non-compressed mode; L _{e, ref}for the E-DPDCH code channel number that reference E-TFC is corresponding under non-compressed mode; L _{e, I, i}the E-DPDCH code channel number of the first biography frame corresponding to current process frame; K _{e, ref}for the transport channel parameters that reference E-TFC is corresponding; K _e,ifor the transport channel parameters that current E-TFC is corresponding; △ _harqfor medium access control-d (MAC-d) the flow enhancement factor; N _{pilot, C}for the bit number of the pilot tone of the every time slot of DPCCH channel under compact model; N _{pilot, N}for the bit number of the pilot tone of the every time slot of DPCCH channel under non-compressed mode; N _{slots, I}the uncompressed timeslot number of frame is just passed corresponding to current process frame.

2. the device of a calculated gains factor, comprise for be condensed frame at present frame and the transmission time interval (TTI) of special physical data channel for upload enhance (E-DPDCH) for 10ms time, calculate the gain factor β of E-DPDCH under compact model _{ed, C, i}unit;

The gain factor β of E-DPDCH under described compact model _{ed, C, i}computational process be expressed as:

${\mathrm{\β}}_{\mathrm{ed},C,i}={\mathrm{\β}}_{c,C,j}\·A_{\mathrm{ed}}\·\sqrt{\frac{L_{e,\mathrm{ref}}}{L_{e,I,i}}}\·\sqrt{\frac{K_{e,i}}{K_{e,\mathrm{ref}}}}\·{10}^{\left(\frac{{\mathrm{\Δ}}_{\mathrm{harq}}}{20}\right)}\·\sqrt{\frac{15\·N_{\mathrm{pilot},C}}{N_{\mathrm{slots},I}\·N_{\mathrm{pilot},N}}}$

Wherein, β _{c, C, j}for the gain factor of Dedicated Physical Control Channel under compact model (DPCCH); β _{ed, ref}for the E-DPDCH gain factor with reference to enhancing transformat combination (E-TFC) correspondence under non-compressed mode, β _cfor the gain factor of DPCCH under non-compressed mode; L _{e, ref}for the E-DPDCH code channel number that reference E-TFC is corresponding under non-compressed mode; L _{e, I, i}the E-DPDCH code channel number of the first biography frame corresponding to current process frame; K _{e, ref}for the transport channel parameters that reference E-TFC is corresponding; K _e,ifor the transport channel parameters that current E-TFC is corresponding; △ _harqfor medium access control-d (MAC-d) the flow enhancement factor; N _{pilot, C}for the bit number of the pilot tone of the every time slot of DPCCH channel under compact model; N _{pilot, N}for the bit number of the pilot tone of the every time slot of DPCCH channel under non-compressed mode; N _{slots, I}the uncompressed timeslot number of frame is just passed corresponding to current process frame.