CN102281620B - Multi-code-channel power matching method and device - Google Patents

Abstract

The invention discloses a multi-code-channel power matching method which comprises the steps of: obtaining a configuration power of each code channel; calculating a power difference according to the configuration power of each code channel; calculating to obtain a power matching factor of each code channel according to the range of the power difference and a weighting factor corresponding to each code channel of a 3GPP (3rd Generation Partner Project); and calculating a total transmitting power and/or generating a baseband pulse burst signal according to the power matching factor of each code channel. The invention also provides a corresponding device. According to various code channel combination conditions, the invention provides a power matching scheme so that all uplink code channel powers are reasonably distributed, mutual interference among the channels is reduced, demodulation performance of transmitting signals is improved, and technical demands of a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) terminal smoothly upgrading from 3GPP R5 and R6 to R7 are facilitated. The technical scheme is easy to implement and has good compatibility.

Description

Many code channels power ratio method and apparatus

Technical field

The present invention relates to communication technical field, be related specifically to a kind of many code channels power ratio method and apparatus.

Background technology

Along with popularizing of 3G communication network, three kinds of G mobile communication 3G standards are applied simultaneously; In TD SDMA (Time Division-Synchronous Code DivisionMultiple Access, TD-SCDMA) network wherein, ascending time slot can send two code channels at most simultaneously in the terminal.

The many code channels of TD-SCDMA terminal uplink are merged, China's communications industry standard " 2GHzTD-SCDMA digital mobile cellular telecommunication net high speed uplink packet access (High Speed Uplink PacketAccess, HSUPA) Uu interface physical layer technical requirement the 4th part: spread spectrum and modulation " 6.6.1 trifle uplink physical channel merges, describe two DPCH (Dedicated Physical Channel, DPCH) one and same coding synthesis transmission channel (Coded Composite TransportChannel is integrated into, CCTrCH) technical method, as shown in Figure 1, each up DPCH channel is respectively by weighted factor γ _ibe weighted and use adding combination device to merge.Using gain factor-beta after physical channel merges _j, β _jdepend on actual transformat combination (Transport Format Combination, TFC).Weighted factor γ _ivalue by corresponding DPCH spreading factor (Spreading Factor, SF) determine.

3GPP (R7) TS25.223 agreement starts to introduce HSUPA, wherein strengthen physical uplink channel (E-PUCH) and there is quarternary phase-shift keying (QPSK) (Quaternary Phase Shift Keying, QPSK), 16 quadrature amplitude modulation (16 Quadrature Amplitude Modulation, 16QAM) two kinds of modulation systems, so will likely there is the different code channel of two modulation systems as DPCH (QPSK modulation)+E_PUCH (16QAM modulation) in ascending time slot.

In specific implementation process, the present inventor finds, when prior art merges in ascending multi-code road, do not consider the transmitting power difference of different code channel, and different code channel may adopt different modulation systems; These factors all can have influence on the power division of uplink code channel.Third generation partner program (the3rd Generation Partner Project, after 3GPP) introducing HSUPA technology, uplink physical channel type increases, same time slot needs the up channel of superposition more complicated, and irrational channel power distribution can cause mutually disturbing increasing, channel demodulation hydraulic performance decline between channel.

Summary of the invention

Power ratio, pulse shaping problem when main purpose of the present invention is for providing a kind of code channel solving the multiple different spreading factor of TD-SCDMA/HSUPA terminal uplink time slot, modulation system and transmitting power to merge, to reduce the many code channels power ratio method and apparatus because of two excessive reception difficulties caused of code channel difference power.

The present invention proposes a kind of many code channels power ratio method, comprising:

Obtain the allocating power of each code channel;

Poor according to the allocating power rated output of each code channel;

According to scope and the corresponding weighted factor of each code channel of 3GPP agreement of described difference power, calculate each code channel power ratio factor;

Calculate total transmitting power according to described each code channel power ratio factor and/or generate base band pulse burst.

Further, the described scope according to difference power and the corresponding weighted factor of each code channel of 3GPP agreement, comprise after calculating each code channel power ratio factor:

Calculate actual power according to the corresponding weighted factor of each code channel of 3GPP agreement to be biased;

, each channel configuration power biased according to described actual power and 3GPP protocol power bias calculate total transmitting power.

Further, the described scope according to difference power and the corresponding weighted factor of each code channel of 3GPP agreement, comprise after calculating each code channel power ratio factor:

Merge according to described each code channel power ratio Factors Weighting and obtain base band pulse burst.

Further, the described scope according to difference power and the corresponding weighted factor of each code channel of 3GPP agreement, calculate each code channel power ratio factor and comprise:

When existence two code channels and be all QPSK modulation time, utilize following formulae discovery to obtain each code channel power ratio factor:

When Δ P >=0:

γ′ ₁＝γ ₁， ${\mathrm{\γ}}_2^{\′}={\mathrm{\γ}}_2\×{10}^{-\frac{\mathrm{\Δ}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},$ γ′ ₂＝γ ₂；

Described for the power ratio factor of the first code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under QPSK modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel under QPSK modulation system in 3GPP agreement, described γ ₂for the weighted factor of the second code channel under QPSK modulation system in 3GPP agreement; Δ P is each code channel difference power.

Further, the described scope according to difference power and the corresponding weighted factor of each code channel of 3GPP agreement, calculate each code channel power ratio factor and comprise:

When existence two code channels and be all 16QAM modulation time, utilize following formulae discovery to obtain each code channel power ratio factor:

When Δ P >=0:

γ′ ₁＝γ ₁， ${\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},$ γ′ ₂＝γ ₂；

Described for the power ratio factor of the first code channel under 16QAM modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under 16QAM modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel under 16QAM modulation system in 3GPP agreement, described γ ₂for the weighted factor of the second code channel under 16QAM modulation system in 3GPP agreement; Δ P is each code channel difference power.

Further, the described scope according to difference power and the corresponding weighted factor of each code channel of 3GPP agreement, calculate each code channel power ratio factor and comprise:

When existence two code channels and be respectively QPSK modulation and 16QAM modulate time, utilize following formulae discovery to obtain each code channel power ratio factor:

Or

When Δ P >=0:

γ′ ₁＝γ ₁， ${\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},$ γ′ ₂＝γ ₂；

Described for the power ratio factor of the first code channel under 16QAM modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the first code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under 16QAM modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel in 3GPP agreement, described γ ₂it is the weighted factor of the second code channel; Δ P is each code channel difference power.

Further, described, each channel configuration power biased according to actual power and 3GPP protocol power bias calculate total transmitting power and comprise:

When an existence code channel, utilize the total transmitting power of following formulae discovery:

P＝P ₁+P(β _j)+P(γ)+P _Normal；

When existence two code channels, utilize the total transmitting power of following formulae discovery:

$P=\max (P_1,P_2)+10\&CenterDot;{\log }_{10}\left(\frac{{10}^{\frac{P_1}{10}}+{10}^{\frac{P_2}{10}}}{{10}^{\frac{\max (P_1,P_2)}{10}}}\right)+P\left({\mathrm{\&beta;}}_j\right)+P\left(\mathrm{\&gamma;}\right)+P_{\mathrm{Normal}};$

Described P is total transmitting power, P ₁and P ₂for each channel configuration power, P (β _j) be 3GPP protocol power bias, P (γ) for actual power be biased, P _normalthe up transmitting normalized power factor.

Further, described merging according to described each code channel power ratio Factors Weighting obtains base band pulse burst and adopts following formula:

UL Burst=λ ₁* Ch1+ λ ₂* Ch2, described λ ₁be the first code channel power ratio factor, described λ ₂it is the second code channel power ratio factor.

The present invention also proposes a kind of many code channels power ratio device, comprising:

Acquisition module, for obtaining the allocating power of each code channel;

Difference power computing module, poor for the allocating power rated output according to each code channel;

Power ratio computing module, for according to the scope of described difference power and the corresponding weighted factor of each code channel of 3GPP agreement, calculates each code channel power ratio factor;

Processing module, for calculating total transmitting power and/or generating base band pulse burst according to described each code channel power ratio factor.

Further, described processing module comprises:

Actual power is biased computing module, is biased for calculating actual power according to the corresponding weighted factor of each code channel of 3GPP agreement;

Total transmitting power computing module, calculates total transmitting power for, each channel configuration power biased according to described actual power and 3GPP protocol power bias.

Further, described processing module comprises:

Signal generation module, obtains base band pulse burst for merging according to described each code channel power ratio Factors Weighting.

Further, described power ratio computing module specifically for:

When existence two code channels and be all QPSK modulation time, utilize following formulae discovery to obtain each code channel power ratio factor:

When Δ P >=0:

γ′ ₁＝γ ₁， ${\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},$ γ′ ₂＝γ ₂；

Described for the power ratio factor of the first code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under QPSK modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel under QPSK modulation system in 3GPP agreement, described γ ₂for the weighted factor of the second code channel under QPSK modulation system in 3GPP agreement; Δ P is each code channel difference power.

Further, described power ratio computing module specifically for:

When existence two code channels and be all 16QAM modulation time, utilize following formulae discovery to obtain each code channel power ratio factor:

When Δ P >=0:

γ′ ₁＝γ ₁， ${\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},$ γ′ ₂＝γ ₂；

Described for the power ratio factor of the first code channel under 16QAM modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under 16QAM modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel under 16QAM modulation system in 3GPP agreement, described γ ₂for the weighted factor of the second code channel under 16QAM modulation system in 3GPP agreement; Δ P is each code channel difference power.

Further, described power ratio computing module specifically for:

When existence two code channels and be respectively QPSK modulation and 16QAM modulate time, utilize following formulae discovery to obtain each code channel power ratio factor:

Or

When Δ P >=0:

γ′ ₁＝γ ₁， ${\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},$ γ′ ₂＝γ ₂；

Described for the power ratio factor of the first code channel under 16QAM modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the first code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under 16QAM modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel in 3GPP agreement, described γ ₂it is the weighted factor of the second code channel; Δ P is each code channel difference power.

Further, described total transmitting power computing module specifically for:

When an existence code channel, utilize the total transmitting power of following formulae discovery:

P＝P ₁+P(β _j)+P(γ)+P _Normal；

When existence two code channels, utilize the total transmitting power of following formulae discovery:

$P=\max (P_1,P_2)+10\&CenterDot;{\log }_{10}\left(\frac{{10}^{\frac{P_1}{10}}+{10}^{\frac{P_2}{10}}}{{10}^{\frac{\max (P_1,P_2)}{10}}}\right)+P\left({\mathrm{\&beta;}}_j\right)+P\left(\mathrm{\&gamma;}\right)+P_{\mathrm{Normal}};$

Described P is total transmitting power, P ₁and P ₂for each channel configuration power, P (β _j) be 3GPP protocol power bias, P (γ) for actual power be biased, P _normalthe up transmitting normalized power factor.

Further, described signal generation module specifically for:

Utilize formula UL Burst=λ ₁* Ch1+ λ ₂* Ch2 weighting merging obtains base band pulse burst, described λ ₁be the first code channel power ratio factor, described λ ₂it is the second code channel power ratio factor.

The present invention provides power ratio scheme according to various code channel combined situation, each uplink code channel power is obtained an equitable breakdown, reduce the mutual interference of interchannel, improve the demodulation performance transmitted, be conducive to TD-SCDMA terminal by the technical need of 3GPP R5, R6 smooth upgrade to R7, technical scheme is implemented easily, compatible good.

Accompanying drawing explanation

Fig. 1 is the combining structure schematic diagram of the different code channel of prior art up link;

Fig. 2 is the flow chart of a kind of many code channels power ratio of the present invention method one embodiment;

Fig. 3 is the structural representation of a kind of many code channels power ratio of the present invention device one embodiment.

The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.

Embodiment

Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

With reference to Fig. 2, it is the flow chart of a kind of many code channels power ratio of the present invention method one embodiment.

Composition graphs 2, is described in further detail the embodiment of the present invention.Comprise up single code channel QPSK or 16QAM modulation system in the present embodiment, up dicode road QPSK adjusts mode, up dicode road 16QAM adjusts five kinds of exemplary embodiments such as mode, up dicode road QPSK+16QAM adjustment mode.

Step S201, obtain the allocating power of each code channel;

The allocating power P of each code channel is obtained from power control module ₁and P ₂.

Step S202, poor according to the allocating power rated output of each code channel;

Utilize P ₁and P ₂rated output is poor, and specific formula for calculation is as follows:

P ₁-P ₂＝ΔP；

Wherein Δ P is difference power.

Step S203, the weighted factor that each code channel of acquisition of tabling look-up is corresponding;

Obtain the spreading factor of each code channel from up link control module, and save table 6 according to described spreading factor inquiry 3GPP TS25.223 agreement 6.6.1, obtain weighted factor γ ₁and γ ₂.

Now, because the application demand of subsequent step, can by γ ₁and γ ₂conversion obtains median γ ' ₁with γ ' ₂;

Concrete account form is as follows:

When Δ P >=0:

γ′ ₁＝γ ₁， ${\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},$ γ′ ₂＝γ ₂。

Step S204, calculate each code channel power ratio factor;

Each code channel power ratio factor is calculated according to the scope of difference power and the corresponding weighted factor of each code channel of 3GPP agreement.

Concrete, according to following formulae discovery power ratio factor lambda:

When ascending time slot only has a code channel, QPSK modulation system:

${\mathrm{\&lambda;}}_1^{\mathrm{QPSK}}=127;$

B, when ascending time slot only has a code channel, 16QAM modulation system:

${\mathrm{\&lambda;}}_1^{16\mathrm{QAM}}=170;$

When ascending time slot exists two code channels and is all QPSK modulation, following formulae discovery is utilized to obtain each code channel power ratio factor:

When ascending time slot exists two code channels and is all 16QAM modulation, following formulae discovery is utilized to obtain each code channel power ratio factor:

When ascending time slot exists two code channels and is respectively QPSK modulation and 16QAM modulation, following formulae discovery is utilized to obtain each code channel power ratio factor:

Or

So far, whole ascending multi-code road power ratio factor computational process is complete; After calculating many code channels power ratio factor, described many code channels power ratio factor can be utilized to calculate total transmitting power or generate base band pulse burst; The calculating of total transmitting power and the generation of base band pulse burst do not interfere with each other, and can generate one or two according to practical application, genesis sequence also can be determined according to the actual requirements.

Concrete, following steps can be adopted to calculate total transmitting power;

Steps A, calculate total transmitting power;

First calculate actual power to be biased;

Calculate actual power according to the corresponding weighted factor of each code channel of 3GPP agreement to be biased.

Concrete, according to β _jtable look-up and obtain 3GPP protocol power bias P (β _j), scope is-18dB to+6dB;

According to γ ' ₁, γ ' ₂and 3GPP protocol power bias P (β _j) calculate actual power be biased:

When there is a code channel in ascending time slot:

P (γ)=10log ₁₀(| γ ' ₁| ²or | γ ' ₂| ²) dB;

When ascending time slot exists two code channels:

P(γ)＝10·log ₁₀(|γ′ ₁| ²+|γ′ ₂| ²)+3dB。

Then following formula can be adopted according to the total transmitting power P of the biased calculating of actual power:

When there is a uplink code channel in ascending time slot:

P＝P ₁+P(β _j)+P(γ)+P _Normal；

When there is two uplink code channels in ascending time slot:

$P=\max (P_1,P_2)+10\&CenterDot;{\log }_{10}\left(\frac{{10}^{\frac{P_1}{10}}+{10}^{\frac{P_2}{10}}}{{10}^{\frac{\max (P_1,P_2)}{10}}}\right)+P\left({\mathrm{\&beta;}}_j\right)+P\left(\mathrm{\&gamma;}\right)+P_{\mathrm{Normal}}.$

Wherein, P _normalfor the up transmitting normalized power factor, can survey out.

Further, after step S204 calculates the power ratio factor, the described power ratio factor can be utilized to generate base band pulse burst;

The concrete step B that can adopt generates base band pulse burst.

After ascending power proportioning is calculated, merging can be weighted according to formula below, form base band pulse burst:

UL Burst＝λ ₁*Ch1+λ ₂*Ch2。

The embodiment of the present invention provides power ratio scheme according to various code channel combined situation, each uplink code channel power is obtained an equitable breakdown, reduce the mutual interference of interchannel, improve the demodulation performance transmitted, be conducive to TD-SCDMA terminal by the technical need of 3GPP R5, R6 smooth upgrade to R7, technical scheme is implemented easily, compatible good.

Consulting Fig. 3, is the structural representation of an embodiment of a kind of many code channels power ratio of the present invention device.

The device that the embodiment of the present invention provides comprises:

Acquisition module 31, for obtaining the allocating power of each code channel;

Difference power computing module 32, poor for the allocating power rated output according to each code channel;

Power ratio computing module 33, for according to the scope of described difference power and the corresponding weighted factor of each code channel of 3GPP agreement, calculates each code channel power ratio factor;

Processing module 34, for calculating total transmitting power and/or generating base band pulse burst according to described each code channel power ratio factor.

Further, described device also comprises:

Actual power is biased computing module 341, is biased for calculating actual power according to the corresponding weighted factor of each code channel of 3GPP agreement;

Total transmitting power computing module 342, calculates total transmitting power for, each channel configuration power biased according to described actual power and 3GPP protocol power bias.

Further, described device also comprises:

Signal generation module 343, obtains base band pulse burst for merging according to described each code channel power ratio Factors Weighting.

Further, described power ratio computing module 33 specifically for:

When existence two code channels and be all QPSK modulation time, utilize following formulae discovery to obtain each code channel power ratio factor:

When Δ P >=0:

γ′ ₁＝γ ₁， ${\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},$ γ′ ₂＝γ ₂；

Described for the power ratio factor of the first code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under QPSK modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel under QPSK modulation system in 3GPP agreement, described γ ₂for the weighted factor of the second code channel under QPSK modulation system in 3GPP agreement; Δ P is each code channel difference power.

Further, described power ratio computing module 33 specifically for:

When existence two code channels and be all 16QAM modulation time, utilize following formulae discovery to obtain each code channel power ratio factor:

When Δ P >=0:

γ′ ₁＝γ ₁， ${\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},$ γ′ ₂＝γ ₂；

Described for the power ratio factor of the first code channel under 16QAM modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under 16QAM modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel under 16QAM modulation system in 3GPP agreement, described γ ₂for the weighted factor of the second code channel under 16QAM modulation system in 3GPP agreement; Δ P is each code channel difference power.

Further, described power ratio computing module 33 specifically for:

When existence two code channels and be respectively QPSK modulation and 16QAM modulate time, utilize following formulae discovery to obtain each code channel power ratio factor:

Or

When Δ P >=0:

γ′ ₁＝γ ₁， ${\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},$ γ′ ₂＝γ ₂；

Described for the power ratio factor of the first code channel under 16QAM modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the first code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under 16QAM modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel in 3GPP agreement, described γ ₂it is the weighted factor of the second code channel; Δ P is each code channel difference power.

Further, described total transmitting power computing module 35 specifically for:

When an existence code channel, utilize the total transmitting power of following formulae discovery:

P＝P ₁+P(β _j)+P(γ)+P _Normal；

When existence two code channels, utilize the total transmitting power of following formulae discovery:

$P=\max (P_1,P_2)+10\&CenterDot;{\log }_{10}\left(\frac{{10}^{\frac{P_1}{10}}+{10}^{\frac{P_2}{10}}}{{10}^{\frac{\max (P_1,P_2)}{10}}}\right)+P\left({\mathrm{\&beta;}}_j\right)+P\left(\mathrm{\&gamma;}\right)+P_{\mathrm{Normal}};$

Described P is total transmitting power, P ₁and P ₂for each channel configuration power, P (β _j) be 3GPP protocol power bias, P (γ) for actual power be biased, P _normalthe up transmitting normalized power factor.

Further, described signal generation module 36 specifically for:

Utilize formula UL Burst=λ ₁* Ch1+ λ ₂* Ch2 weighting merging obtains base band pulse burst, described λ ₁be the first code channel power ratio factor, described λ ₂it is the second code channel power ratio factor.

Concrete, power ratio computing module 33 obtains the spreading factor of each code channel, and saves table 6 according to spreading factor inquiry 3GPP TS25.223 agreement 6.6.1, obtains weighted factor γ ₁and γ ₂

The present invention provides power ratio scheme according to various code channel combined situation, each uplink code channel power is obtained an equitable breakdown, reduce the mutual interference of interchannel, improve the demodulation performance transmitted, be conducive to TD-SCDMA terminal by the technical need of 3GPP R5, R6 smooth upgrade to R7, technical scheme is implemented easily, compatible good.

The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (14)

1. the power ratio of code channel a more than method, is characterized in that, comprising:

Obtain the allocating power of each code channel;

Poor according to the allocating power rated output of each code channel;

According to scope and the corresponding weighted factor of each code channel of third generation partner program 3GPP agreement of described difference power, calculate each code channel power ratio factor;

Calculate total transmitting power according to described each code channel power ratio factor and/or generate base band pulse burst;

The described scope according to difference power and the corresponding weighted factor of each code channel of 3GPP agreement, calculate each code channel power ratio factor and comprise:

When existence two code channels and be all QPSK modulation time, utilize following formulae discovery to obtain each code channel power ratio factor:

When Δ P >=0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1,{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2;$

Described for the power ratio factor of the first code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under QPSK modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel under QPSK modulation system in 3GPP agreement, described γ ₂for the weighted factor of the second code channel under QPSK modulation system in 3GPP agreement; Δ P is each code channel difference power.

2. method according to claim 1, is characterized in that, described calculate total transmitting power according to each code channel power ratio factor and/or generate base band pulse burst comprise:

Calculate actual power according to the corresponding weighted factor of each code channel of 3GPP agreement to be biased;

, each channel configuration power biased according to described actual power and 3GPP protocol power bias calculate total transmitting power.

3. method according to claim 1, is characterized in that, described calculate total transmitting power according to described each code channel power ratio factor and/or generate base band pulse burst comprise:

Merge according to described each code channel power ratio Factors Weighting and obtain base band pulse burst.

4. method according to claim 1, is characterized in that, the described scope according to difference power and the corresponding weighted factor of each code channel of 3GPP agreement, calculate each code channel power ratio factor and comprise:

When existence two code channels and be all 16QAM modulation time, utilize following formulae discovery to obtain each code channel power ratio factor:

When Δ P >=0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1,{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2;$

Described for the power ratio factor of the first code channel under 16QAM modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under 16QAM modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel under 16QAM modulation system in 3GPP agreement, described γ ₂for the weighted factor of the second code channel under 16QAM modulation system in 3GPP agreement; Δ P is each code channel difference power.

5. method according to claim 1, is characterized in that, the described scope according to difference power and the corresponding weighted factor of each code channel of 3GPP agreement, calculate each code channel power ratio factor and comprise:

When existence two code channels and be respectively QPSK modulation and 16QAM modulate time, utilize following formulae discovery to obtain each code channel power ratio factor:

Or

When Δ P >=0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1,{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2;$

Described for the power ratio factor of the first code channel under 16QAM modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the first code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under 16QAM modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel in 3GPP agreement, described γ ₂it is the weighted factor of the second code channel; Δ P is each code channel difference power.

6. method according to claim 2, is characterized in that, described, each channel configuration power biased according to actual power and 3GPP protocol power bias calculate total transmitting power and comprise:

When an existence code channel, utilize the total transmitting power of following formulae discovery:

P＝P ₁+P(β _j)+P(γ)+P _Normal；

When existence two code channels, utilize the total transmitting power of following formulae discovery:

$P=\max (P_1,P_2)+10\&CenterDot;{\log }_{10}\left(\frac{{10}^{\frac{P_1}{10}}+{10}^{\frac{P_2}{10}}}{{10}^{\frac{\max (P_1,P_2)}{10}}}\right)+P\left({\mathrm{\&beta;}}_j\right)+P\left(\mathrm{\&gamma;}\right)+P_{\mathrm{Normal}};$

Described P is total transmitting power, P ₁and P ₂for each channel configuration power, P (β _j) be 3GPP protocol power bias, P (γ) for actual power be biased, P _normalfor the up transmitting normalized power factor.

7. method according to claim 3, is characterized in that, described merging according to described each code channel power ratio Factors Weighting obtains base band pulse burst and adopt following formula:

UL Burst=λ ₁* Ch1+ λ ₂* Ch2, described λ ₁be the first code channel power ratio factor, described λ ₂it is the second code channel power ratio factor.

8. the power ratio of code channel a more than device, is characterized in that, comprising:

Acquisition module, for obtaining the allocating power of each code channel;

Difference power computing module, poor for the allocating power rated output according to each code channel;

Power ratio computing module, for according to the scope of described difference power and the corresponding weighted factor of each code channel of 3GPP agreement, calculates each code channel power ratio factor;

Processing module, for calculating total transmitting power and/or generating base band pulse burst according to described each code channel power ratio factor;

Described power ratio computing module specifically for:

When existence two code channels and be all QPSK modulation time, utilize following formulae discovery to obtain each code channel power ratio factor:

When Δ P >=0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1,{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2;$

Described for the power ratio factor of the first code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under QPSK modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel under QPSK modulation system in 3GPP agreement, described γ ₂for the weighted factor of the second code channel under QPSK modulation system in 3GPP agreement; Δ P is each code channel difference power.

9. device according to claim 8, is characterized in that, described processing module comprises:

Actual power is biased computing module, is biased for calculating actual power according to the corresponding weighted factor of each code channel of 3GPP agreement;

Total transmitting power computing module, calculates total transmitting power for, each channel configuration power biased according to described actual power and 3GPP protocol power bias.

10. device according to claim 8, is characterized in that, described processing module comprises:

Signal generation module, obtains base band pulse burst for merging according to described each code channel power ratio Factors Weighting.

11. devices according to claim 8, is characterized in that, described power ratio computing module specifically for:

When existence two code channels and be all 16QAM modulation time, utilize following formulae discovery to obtain each code channel power ratio factor:

When Δ P >=0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1,{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2;$

Described for the power ratio factor of the first code channel under 16QAM modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under 16QAM modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel under 16QAM modulation system in 3GPP agreement, described γ ₂for the weighted factor of the second code channel under 16QAM modulation system in 3GPP agreement; Δ P is each code channel difference power.

12. devices according to claim 8, is characterized in that, described power ratio computing module specifically for:

When existence two code channels and be respectively QPSK modulation and 16QAM modulate time, utilize following formulae discovery to obtain each code channel power ratio factor:

Or

When Δ P >=0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1,{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2\&times;{10}^{-\frac{\mathrm{\&Delta;}}{20}};$

As Δ P < 0:

${\mathrm{\&gamma;}}_1^{\&prime;}={\mathrm{\&gamma;}}_1\&times;{10}^{\frac{\mathrm{\&Delta;}}{20}},{\mathrm{\&gamma;}}_2^{\&prime;}={\mathrm{\&gamma;}}_2;$

Described for the power ratio factor of the first code channel under 16QAM modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the first code channel under QPSK modulation system in 3GPP agreement, described in for the power ratio factor of the second code channel under 16QAM modulation system in 3GPP agreement, described γ ₁for the weighted factor of the first code channel in 3GPP agreement, described γ ₂it is the weighted factor of the second code channel; Δ P is each code channel difference power.

13. devices according to claim 9, is characterized in that, described total transmitting power computing module specifically for:

When an existence code channel, utilize the total transmitting power of following formulae discovery:

P＝P ₁+P(β _j)+P(γ)+P _Normal；

When existence two code channels, utilize the total transmitting power of following formulae discovery:

$P=\max (P_1,P_2)+10\&CenterDot;{\log }_{10}\left(\frac{{10}^{\frac{P_1}{10}}+{10}^{\frac{P_2}{10}}}{{10}^{\frac{\max (P_1,P_2)}{10}}}\right)+P\left({\mathrm{\&beta;}}_j\right)+P\left(\mathrm{\&gamma;}\right)+P_{\mathrm{Normal}};$

Described P is total transmitting power, P ₁and P ₂for each channel configuration power, P (β _j) be 3GPP protocol power bias, P (γ) for actual power be biased, P _normalfor the up transmitting normalized power factor.

14. devices according to claim 10, is characterized in that, described signal generation module specifically for:

Utilize formula UL Burst=λ ₁* Ch1+ λ ₂* Ch2 weighting merging obtains base band pulse burst, described λ ₁be the first code channel power ratio factor, described λ ₂it is the second code channel power ratio factor.