CN101729101A - Transmitting method of cell downlink signal for realizing cell subdomain allocation - Google Patents

Abstract

The invention relates to a method for realizing downlink signal transmission in a cell of cell subdomain allocation. The method comprises the following steps that: (a) a base station compensates the power deviation of each cell subdomain according to maximum cell transmitting power and carries out overload protection of the acquired actual allocated power of each cell subdomain to ensure that the sum of multi-carrier slot transmitting power of each cell subdomain is not more than the transmitting capacity of local antenna channels of each cell subdomain, thereby determining the final downlink carrier slot power of each cell subdomain and cell power, and then compensates the power deviation of each cell subdomain by virtual code channel power within a reference cell subdomain obtained through a method which calculates downlink code channel power by a common cell to acquire actual code channel power; and (b) the base station transmits a cell downlink signal according to the cell power, downlink carrier slot power and code channel power of each cell subdomain. The method eliminates influences generated due to different transmitting capacities of single antenna channels of cell subdomains and prevents carrier slot transmitting power overload of the base station.

Description

A kind of cell downlink signal method for transmitting that realizes the configuration of branch territory, sub-district

Technical field

The present invention relates in the wireless communication system base station to the power configuration and the launching technique of cell downlink signal, relate in particular to 3-G (Generation Three mobile communication system), as time division CDMA (TD-CDMA, TimeDivision-Code Division Multiple Access), TD SDMA (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access) mobile communication system such as, the realization cell downlink signal method for transmitting of base station to supporting that territory (CP, Cell Portion) configuration mode is divided in the sub-district.

Background technology

3GPP protocol requirement sub-district supports the sub-district to divide the configuration mode in territory.It is a kind of networking means between full macro base station networking and full radio frequency zoom out.Different districts in the same sub-district divides the territory to cover different zones.Remote Radio Unit (RRU, the Radio RemoteUnit) equipment that different sub-districts divides the territory to use different model, and the emissivities of the RRU equipment of different model and inequality, i.e. the down transmitting power scope difference of RRU.Require the base station on different districts branch territory, to launch different power thus.

Usually, a carrier wave comprises a plurality of time slots, and each time slot comprises many code channels again, and these time slots and code channel are shared same radio-frequency channel by using direct spread spectrum technology.The Resource Unit of determining with code channel and time slot is that unit is used as resource allocation and uses to the user.For solving the problem of cdma system single carrier finite capacity, adopt multi-carrier scheme to improve spectrum efficiency, promptly provide a plurality of continuous carrier waves a sub-district, each sub-district is a main carrier with one of them carrier wave, system provides broadcast channel, uplink physical channel on main carrier, down physical channel and other common signal channel are used for system information broadcast and terminal and insert; And on other auxilliary carrier wave, only provide Traffic Channel.Thus, by the sub-district that branch territory, a plurality of sub-district is formed, the power that disposes in all branch territories, sub-district has following relation by layer:

1) many antennas of cell configuration maximum transmission power equals all carrier wave time slot power sums of this sub-district;

2) each carrier wave time slot power equals all code channel power sums.

But the base station application part (NBAP in the 3GPP agreement, Node B Application Part) message set up in the sub-district or Radio Link when setting up the sub-district maximum transmission power of configuration only comprised many antennas down transmitting power in single subdistrict branch territory, the down transmitting power to each branch territory, sub-district separately is not configured.This just needs the base station to change into the power of each sub-district required configuration in branch territory by this power.

Simple method is not take place under the situation of power overload protection in each branch territory, sub-district, and the principle that equates fully according to same user's the single antenna channels power of code channel in each branch territory, sub-district is configured.The problem that this method exists is, when the sub-district of selecting less transmission power capabilities divides the territory as radio network controller (RNC, when Radio Network Controller) reference cell of allocating power was divided the territory, the power in the branch territory, sub-district that then the downlink ability is bigger will be wasted; And when selecting the bigger branch territory, sub-district of downlink ability to divide the territory as the reference cell of RNC allocating power, the power in the branch territory, sub-district that then the downlink ability is little is easy to take place overload protection.

Obviously, above-mentioned this method can't satisfy the high performance demands that branch territory, sub-district configuration mode is supported in the base station.Therefore, a kind of power configuration and launching technique of cell downlink signal need be provided, make the base station to do necessary power deviation correction to the cell downlink power of configuration according to the downlink ability in home cell branch territory, thereby obtain the actual disposition power in each branch territory, sub-district, precisely carry out the emission of cell downlink signal thus reliably.

Summary of the invention

Technical problem to be solved by this invention provides a kind of cell downlink signal method for transmitting that realizes the configuration of branch territory, sub-district, the performance impact that the difference of each branch territory, sub-district emissivities is brought can be compensated, and the carrier wave time slot transmission power overload of base station can be avoided.

In order to solve the problems of the technologies described above, the downstream signal method for transmitting is realized in the sub-district that the invention provides under the configuration of branch territory, a kind of sub-district, comprising:

A, base station side compensate the power deviation in each branch territory, sub-district according to the sub-district maximum transmission power, obtain the actual disposition power in each branch territory, sub-district; The actual disposition power in each branch territory, sub-district is carried out the overload protection processing, be no more than the local antenna channels emissivities in each branch territory, sub-district with the multi-carrier time slot transmitting power summation that guarantees each branch territory, sub-district in the same sub-district, thereby determine that each final sub-district divides the descending carrier time slot power and the corresponding cell power in territory; Utilize configuration following sub-district in branch territory, non-sub-district to calculate the method for descending code channel power then, obtain the virtual code channel power in reference cell branch territory; Again virtual code channel power is compensated the power deviation in each branch territory, sub-district respectively, obtain the code channel power of each carrier wave reality in each branch territory, sub-district;

B, base station side are carried out the emission of cell downlink signal according to each corresponding cell power in branch territory, sub-district, descending carrier time slot power and descending code channel power thereof.

Further, step a comprises:

The sub-district maximum transmission power that a1, base station side provide when setting up in the sub-district according to base station application part NBAP, by compensating the downlink ability deviation in each branch territory, sub-district, convert out each descending single antenna maximum transmission power in branch territory, sub-district and each sub-district and divide the territory descending each carrier wave time slot maximum transmission power;

A2, when the local antenna channels emissivities that surpass branch territory, sub-district when descending each the carrier wave time slot maximum transmission power sum in branch territory, sub-district are promptly transshipped, base station side is done overload protection to descending each the carrier wave time slot maximum transmission power in branch territory, sub-district and is handled, again convert out each sub-district and divide the territory descending each carrier wave time slot maximum transmission power, and carry out the cell downlink maximum transmission power configuration in this branch territory, sub-district according to the descending single antenna maximum transmission power in branch territory, sub-district of conversion again; Otherwise directly the descending single antenna maximum transmission power in branch territory, sub-district according to the conversion of step a1 carries out the cell downlink maximum transmission power configuration in this branch territory, sub-district;

A3, base station will utilize the method for the calculating descending code channel power of sub-district under the configuration of branch territory, non-sub-district; each branch territory, the sub-district virtual carrier time slot maximum power that obtains is the upper limit; the downlink physical code channel transmitting power history value sum of carrying on the reference cell branch territory of extracting is carried out overload protection to be handled; thereby obtain the descending code channel performance number in each virtual subdistrict branch territory; then the descending code channel performance number in each virtual subdistrict branch territory is compensated the downlink ability deviation in each branch territory, sub-district respectively, configure descending code channel power in each actual branch territory, sub-district.

Further, step (a1) comprising:

The reference cell of a1-1, selection one sub-district is divided the territory, calculates configuration divides the territory to reference cell single antenna maximum transmission power P _MaxcfgCell[R];

A1-2, with P _MaxcfgCell[R] is as the criterion, and divided the single antenna maximum power P in territory by each sub-district _MaxAntCh[i] calculates the single antenna channels power capability deviation P in each branch territory, sub-district _OffSet[i];

A1-3, reference cell divided the single antenna maximum transmission power P in territory _MaxCfgCell[R] compensates the single antenna channels power capability deviation P in each branch territory, sub-district _OffSet[i] obtains the descending single antenna maximum transmission power P in each branch territory, sub-district _MaxCfgCell[i];

A1-4, reference cell divided descending each carrier wave time slot maximum transmission power P in territory _MaxCfgCarrTs[R, j] compensates the single antenna channels power capability deviation P in each branch territory, sub-district _OffSet[i] obtains descending each carrier wave time slot maximum transmission power P in each branch territory, sub-district _MaxCfgCarrTs[i, j];

Wherein, i=1,2 ... L, L are the number in branch territory in sub-district in the sub-district; J=1,2 ... M, M are the descending carrier number in branch territory, sub-district; R represents described reference cell branch territory.

Further,

Step a1-1 chooses reference cell branch territory by best mode; That is: the branch territory, sub-district with all antenna channels transmitted power summation maximums is described reference cell branch territory; Perhaps, be reference cell branch territory with the branch territory, sub-district that reaches a calibration yield value; Perhaps fixing branch territory, wherein arbitrary sub-district is reference cell branch territory.

Further, step a1-1 calculates P by following formula _MaxcfgCell[R]:

P _MaxcfgCell[R](dB)＝P _MxCfgCell(dB)-10*log(N _Ant[R])

In the formula: P _MaxcfgCell[R] is P (dB) _MaxcfgCellThe dBm value of [R]; P _MxCfgCell(dB) the dBm value that receives for the base station according to sub-district many antennas maximum transmission power of reference cell branch territory configuration; N _Ant[R] divides the number of antennas in territory for reference cell;

Step a1-2 calculates P according to following formula _OffSet[i]:

P _OffSet[i](dB)＝P _MaxAntCh[i](dB)-P _MaxAntCh[R](dB)

In the formula, P _OffSet[i] is P (dB) _OffSetThe dBm value of [i]; P _MaxAntCh[i] is the dBm value of the descending single antenna channels maximum transmission power in branch territory, i sub-district (dB); P _MaxAntCh[R] (dB) divides the local maximum transmit power dBm of the descending single antenna channels value in territory for reference cell;

Step a1-3 calculates P according to following formula _MaxCfgCell[i]:

P _MaxCfgCell[i](dB)＝P _MaxcfgCell[R](dB)+P _OffSet[i](dB)

In the formula: P _MaxCfgCell[i] is P (dB) _MaxCfgCellThe dBm value of [i];

Step a1-4 calculates P according to following formula _MaxCfgCarrTs[i, j]:

P _MaxCfgCarrTs[i，j](dB)＝P _MaxCfgCarrTs[R，j](dB)+P _Offset[i](dB)

In the formula: P _MaxCfgCarrTs[i, j] is P (dB) _MaxCfgCarrTsThe dBm value of [i, j]; P _MaxCfgCarrTs[R, j] is that the base station is according to the P that receives (dB) _MaxCfgCellEach carrier wave time slot maximum transmission power dBm value of the reference cell branch territory that calculates.

Further, step a2 comprises:

If a2-1 sets up the sub-district, then execution in step (a2-2) is calculated the maximum power of each each carrier wave time slot of branch territory, sub-district; Otherwise the maximum power of each each carrier wave time slot of branch territory, sub-district is changed to 0;

A2-2, when The time, the expression overload must divide each sub-district the territory descending each carrier wave time slot maximum transmission power P _MaxCfgCarrTs[i, j] is reduced into P _MaxCarrTs[i, j] makes

Set up; P _MaxCarrTs[i, j] is descending each carrier wave time slot maximum transmission power in each branch territory, sub-district of conversion again; P _MaxCell[i] is the sub-district maximum transmission power in each the branch territory, sub-district after the conversion again; Otherwise,

Then not to P _MaxCfgCarrTs[i, j] dwindles;

A2-3, set up when the sub-district, the cell downlink maximum transmission power in branch territory, i sub-district is configured to: P _MaxCell[i]=MIN (P _MaxAntCh[i], P _MaxCfgCell[i])

In the formula, MIN represents to get P _MaxAntCh[i], P _MaxCfgCellMinimum value in [i].

Further, step a2-2 divides the territory descending each carrier wave time slot maximum transmission power P each sub-district by following formula _MaxCfgCarrTs[i, j] geometric ratio is dwindled:

P _MaxCarrTs[i，j](dB)＝P _MaxCfgCarrTs[i，j](dB)-MAX(0，P _MaxCfgCell[i](dB)-P _MaxAntCh[i])(dB)

In the formula, MAX represents to get maximum in the parameter, that is:

If P _MaxCfgCell[i] (dB)＞P _MaxAntCh[i] (dB), MAX value=P _MaxCfgCell[i] (dB)-P _MaxAntCh[i] (dB) promptly represents overload, then each sub-district must be divided the territory descending each carrier wave time slot maximum transmission power P _MaxCfgCarrTs[i, j] geometric ratio is dwindled the MAX value, to convert P again _MaxCarrTs[i, j] and P _MaxCell[i]; Otherwise each sub-district divides the territory descending each carrier wave time slot maximum transmission power P _MaxCfgCarrTs[i, j] and

Need not dwindle.

Further, step a2-2 divides the territory descending each carrier wave time slot maximum transmission power P described each sub-district _MaxCfgCarrTs[i, j] dwindles, and is to carry out dwindling in various degree by the carrier wave priority level, makes $P_{\mathrm{MaxCell}}\left[i\right]=\underset{j=1}{\overset{M}{\mathrm{\Σ}}}{P}_{\mathrm{MaxCarrTs}}[i,j]\≤P_{\mathrm{MaxAntCh}}\left[i\right].$

Further, step a3 further comprises:

A3-1, divide the territory descending each carrier wave time slot maximum transmission power P each sub-district _MaxCarrTs[i, j] removes the single antenna channels power capability deviation P in branch territory, corresponding sub-district _OffSet[i] obtains respective cell branch territory virtual carrier time slot maximum transmission power P _MaxCarrT ^V[i, j] divides the overload protection upper limit of each code channel power sum in the territory as each virtual subdistrict;

The downlink physical code channel transmitting power history value P that carries on the reference cell branch territory that a3-2, extraction base station side receive _Phch[R, j, k], wherein k is the code channel sequence number;

A3-3, all N the code channel power P of reference cell being divided the territory _Phch[R, j, k] sum

[R, j, k] is respectively with each virtual carrier time slot maximum power P _MaxCarrT ^V[i, the j] power of exceeding overload protection is handled, and obtains the code channel power P in the virtual subdistrict branch territory _Phch ^V[i, j, k]; That is:

$\underset{k=1}{\overset{N}{\mathrm{\Σ}}}{P}_{\mathrm{Phch}}[R,j,k]\≤P_{\mathrm{MaxCarrT}}^V[i,j]=\underset{k=1}{\overset{N}{\mathrm{\Σ}}}{P}_{\mathrm{Phch}}^V[i,j,k]$

And reference cell is divided the P in territory _Phch ^V[R, j, k] is as next P _Phch[R, j, k] storage;

A3-4, with P _Phch ^V[i, j, k] compensate each branch territory, sub-district single antenna channels power capability deviation P _OffSet[i] obtains each actual branch territory, sub-district code channel transmitting power.

Further,

Step a3-1 obtains P according to following formula _MaxCarrT ^V[i, j]:

$P_{\mathrm{MaxCarrT}}^V[i,j]\left(\mathrm{dB}\right)=P_{\mathrm{MaxCarrTs}}[i,j]\left(\mathrm{dB}\right)-P_{\mathrm{Offset}}\left[i\right]\left(\mathrm{dB}\right)$

In the formula: P _MaxCarrT ^V[i, j] is P (dB) _MaxCarrT ^VThe dBm value of [i, j];

Step a3-2P _Phch[R, j, k] is initial value by each code channel transmitting power of reference cell branch territory of NBAP configuration at initial time;

Step a3-4 obtains each actual branch territory, sub-district code channel transmitting power P according to following formula _Phch[i, j, k]:

$P_{\mathrm{Phch}}[i,j,k]\left(\mathrm{dB}\right)=P_{\mathrm{Phch}}^V[i,j,k]\left(\mathrm{dB}\right)+P_{\mathrm{OffSet}}\left[i\right]\left(\mathrm{dB}\right);$

In the formula: P _Phch[i, j, k] is P (dB) _PhchThe dBm value of [i, j, k].

Adopt the cell downlink signal method for transmitting of branch territory, realization provided by the invention sub-district configuration, make the base station cell downlink power of configuration can be done necessary power deviation correction according to the downlink capacity variance in home cell branch territory, can compensate the performance impact of bringing because of the difference of each branch territory, sub-district single antenna channels emissivities, also can avoid the carrier wave time slot transmitting power of base station to surpass the antenna channels ability and transship, also avoid the calculating of too much complexity simultaneously, made processing procedure simplify greatly.

Description of drawings

Fig. 1 is the cell downlink signal method for transmitting flow chart of branch territory, realization of the present invention sub-district configuration;

Fig. 2 is the method flow diagram that the present invention calculates descending carrier time slot maximum transmission power and full sub-district maximum transmission power;

Fig. 3 is the method flow diagram that the present invention calculates downlink physical code channel power.

Embodiment

The cell downlink signal method for transmitting of territory configuration is divided in realization provided by the invention sub-district, comprising:

A, base station side compensate the power deviation in each branch territory, sub-district according to the sub-district maximum transmission power, obtain the actual disposition power in each branch territory, sub-district; The actual disposition power in described each branch territory, sub-district is carried out the overload protection processing, be no more than the local antenna channels emissivities in each branch territory, sub-district with the multi-carrier time slot transmitting power summation that guarantees each branch territory, sub-district in the same sub-district, thereby determine that each final sub-district divides the descending carrier time slot power and the corresponding cell power in territory; Utilize configuration following sub-district in branch territory, non-sub-district to calculate the method for descending code channel power then, obtain the virtual code channel power in reference cell branch territory; Again described virtual code channel power is compensated the power deviation in described each branch territory, sub-district respectively, obtain the code channel power of each carrier wave reality in each branch territory, sub-district;

B, base station side are carried out the emission of cell downlink signal according to described each corresponding cell power in branch territory, sub-district, descending carrier time slot power and described descending code channel power thereof.

Below in conjunction with drawings and Examples the present invention is described in detail further, but should not limit protection scope of the present invention with this.

Before being elaborated, introduce two notions first:

Reference cell branch territory: for compensating the power capability deviation between each branch territory, sub-district, and branch territory, a certain sub-district power capability is chosen to be reference data, other sub-district divides the territory with this reference data rated output deviation, thereby carries out the configuration of power deviation compensation of branch territory, sub-district and actual power.The branch territory, sub-district that this power capability is elected reference data as is reference cell branch territory.

Virtual subdistrict branch territory: when allocating cell divides territory downlink physical code channel power, the complex situations of dividing territory multicarrier, a plurality of code channels at the sub-district, for simplify that computing and storage operation introduce utilize the sub-district dispose in branch territory, non-sub-district the time the descending code channel power in branch territory, sub-district of method acquisition of the descending code channel power of calculating, promptly virtual subdistrict divides the descending code channel power in territory.

The cell downlink signal method for transmitting of territory configuration is divided in realization of the present invention sub-district, as shown in Figure 1, comprises the steps:

110: sub-district many antennas maximum transmission power that the base station provides when setting up in the sub-district according to NBAP, compensate the deviation of the downlink ability in each branch territory, sub-district, convert out each descending single antenna maximum transmission power in branch territory, sub-district and each sub-district and divide the territory descending each carrier wave time slot maximum transmission power;

120: divide territory antenna emissivities if branch territory, sub-district downlink double/multi-load ripple time slot transmitting power sum surpasses each sub-district, then descending each the carrier wave time slot maximum transmission power in branch territory, sub-district being done overload protection handles, be that geometric ratio is dwindled or dwindled descending each the carrier wave time slot maximum transmission power in each branch territory, sub-district by the carrier wave priority level, again convert out each sub-district and divide the territory descending each carrier wave time slot maximum transmission power, and the descending single antenna maximum transmission power in branch territory, sub-district that will convert again is as the cell downlink maximum transmission power configuration in this branch territory, sub-district; Otherwise, the cell downlink maximum transmission power configuration that directly branch territory, the sub-district descending single antenna maximum transmission power allocating power of step 110 conversion is divided the territory as this sub-district;

130: the method for the descending code channel power of calculating the when base station utilizes the sub-district to dispose in branch territory, non-sub-district, the acquisition virtual subdistrict divides descending each the code channel power in the territory;

At first above-mentioned each sub-district is divided the territory descending each carrier wave time slot maximum transmission power, remove this each branch territory, sub-district downlink ability deviation compensation, obtain each branch territory, sub-district virtual carrier time slot maximum power, divide the overload protection upper limit of each code channel power sum in the territory as virtual subdistrict;

Extract each code channel transmitting power history value of descending each carrier wave of carrying on the reference cell branch territory then, and ask itself and value, when this and value are promptly transshipped greater than the virtual carrier time slot maximum power in each virtual subdistrict branch territory respectively, then each code channel power in each virtual subdistrict branch territory is carried out that geometric ratio is dwindled or method such as dwindle to some extent by the code channel priority level, make the virtual carrier time slot maximum power of its summation, thereby obtain each code channel power in the virtual subdistrict branch territory smaller or equal to branch territory, sub-district.

Each code channel transmitting power history value of descending each carrier wave that carries on the above-mentioned reference cell branch territory is the initial value by each code channel transmitting power of reference cell branch territory of NBAP configuration that the base station obtains at initial time.

140: the Configuration Values of each code channel power in each virtual subdistrict branch territory is compensated the power deviation in each branch territory, sub-district respectively, configure each code channel power of descending each carrier wave time slot in each actual branch territory, sub-district;

150: the emission of cell downlink signal is carried out according to each the descending single antenna maximum transmission power in branch territory, sub-district of configuration and maximum transmission power and each code channel power thereof of each descending each carrier wave time slot in branch territory, sub-district in the base station.

Below in conjunction with an application example said method process step is explained in detail and illustrated.

At first introduce following parameter.In the following parameters of introducing, the dBm value of power is meant, supposes that performance number is PW, then dBm value P (the dB)=10log PW of power.Why getting the dBm value of each power, is because can convert comparatively complicated multiplication and division computing to the plus and minus calculation of logarithm in computing, has reduced computational complexity thus.

P _MaxAntCh[i] (dB): the dBm value that is the descending single antenna channels maximum transmission power in branch territory, i sub-district.

P _MaxCfgCell(dB): the many antennas maximum transmission power dBm value that receives for the base station according to some reference cell branches territory configuration.

P _MaxCfgCarrTs(dB): for the base station according to the P that receives _MaxCfgCellEach the carrier wave time slot maximum transmission power dBm value that calculates.The algebraic value of the time slot maximum transmission power of a same sub-district M carrier wave and be P _MaxCfgCellAlgebraic value.That is:

$P_{\mathrm{MaxCfgCell}}=\underset{j=1}{\overset{M}{\mathrm{\Σ}}}{P}_{\mathrm{MaxCfgCarrTs}}\left[j\right];$

In the formula:

J is branch territory, a sub-district carrier wave sequence number, and M is a carrier number.

Branch territory, two sub-districts is for example arranged: branch territory, A sub-district, branch territory, B sub-district in the sub-district that the base station is had jurisdiction over; Each branch territory, sub-district descending carrier number is 3, and 16 code channels are arranged on each carrier wave.Wherein:

Branch territory, A sub-district: the downstream signal emission has 6 antennas, and unit antenna power is the 1mw/ root;

Branch territory, B sub-district: the downstream signal emission has 2 antennas, and unit antenna power is the 5mw/ root;

NBAP provides sub-district many antennas maximum transmission power when setting up in this sub-district be 8mw, and descending carrier 1, carrier wave 2 and the carrier wave 3 transmitting power P that carry on the reference cell branch territory are provided _MaxCfgCarrTs(dB) be respectively 2mw, 4mw, 2mw.

At first, according to method flow shown in Figure 2, each descending carrier time slot maximum transmission power of calculation plot branch territory A, B and cell downlink maximum transmission power (being step 110 among Fig. 1,120) comprise the steps:

210: choose reference cell branch territory;

At this, choose reference cell branch territory in the best way, that is: the branch territory, sub-district with all antenna channels transmitted power summation maximums is reference cell branch territory; Perhaps, be reference cell branch territory with the branch territory, sub-district that reaches a calibration yield value; Perhaps, fixing branch territory, wherein arbitrary sub-district is reference cell branch territory.

In this example, if choose by branch territory, the sub-district principle of all antenna channels transmitted power summation maximums, then (all antenna channels transmitted power summations=2 * 5mw/ root=10mw) are elected reference cell branch territory as with branch territory, B sub-district.

The base station is with P _MaxCfgCell(dB) as the many antenna maximum transmission power of configuration to the reference cell branch territory B that chooses.

Before carrying out next step, must press formula (1), formula (2) and calculate the single antenna maximum power dBm value of configuration respectively to reference cell branch territory:

P _MaxcfgCell[R](dB)＝P _MxCfgCell(dB)-10*log(N _Ant[R]) (1)

P _MaxCfgCarrTs[R，j](dB)＝P _maxCfgCarrTs[j](dB)-10*log(N _Ant[R]) (2)

In the formula, N _Ant[R] divides the antenna number in territory for reference cell.

In this example, configuration equals to the single antenna maximum transmission power dBm value of reference cell branch territory B:

P _MaxcfgCell[B](dB)＝10log8-10log2＝10log4；

The single antenna maximum transmission power that is reference cell branch territory B is 4mw.

P _MaxCfgCarrTs[B，1](dB)＝10log2-10log2＝10log1；

P _MaxCfgCarrTs[B，2](dB)＝10log4-10log2＝10log2；

P _MAxCfgCarrTs[B，3](dB)＝10log2-10log2＝10log1；

The maximum transmission power that is 3 carrier wave time slots of descending single antenna of reference cell branch territory B is respectively 1mw, 2mw, 1mw.

220: by formula (3) calculate the single antenna channels power capability deviation dBm value in each branch territory, sub-district;

P _OffSet[i](dB)＝P _MaxAntCh[i](dB)-P _MaxAntCh[R](dB) (3)

Wherein, P _MaxAntCh[R] (dB) divides the local maximum transmit power dBm of the descending single antenna channels value in territory for reference cell.

In this example, the single antenna channels power capability deviation dBm value of sub-district branch territory A equals:

P _OffSet[A](dB)＝P _MaxAntCh[A](dB)-P _MaxAntCh[B](dB)＝10log1-10log5＝10log(1/5)；

P _OffSet[B](dB)＝P _MaxAntCh[B](dB)-P _MaxAntCh[B](dB)＝10log1＝0；

230: each branch territory, the sub-district descending single antenna maximum transmission power Configuration Values that calculates corresponding upper-layer configured;

By formula (4) are by compensating the single antenna channels power capability deviation calculation that the territory is divided in the sub-district:

P _MaxCfgCell[i](dB)＝P _MaxcfgCell[R](dB)+P _OffSet[i](dB) (4)

In this example, each branch territory, sub-district descending single antenna maximum transmission power Configuration Values equals respectively:

P _MaxCfgCell[A](dB)＝P _MaxcfgCell[B](dB)+P _OffSet[A](dB)

＝10log4+10log(1/5)＝10log(4/5)；

P _MaxCfgCell[B](dB)＝10log4；

240: by formula each sub-district of the corresponding upper-layer configured of (5) calculating divides the territory descending each carrier wave time slot maximum transmission power configuration dBm value;

P _MaxCfgCarrTs[i，j](dB)＝P _MaxCfgCarrTs[R，j](dB)+P _Offset[i](dB) (5)

In this example, descending 3 the carrier wave time slot maximum transmission power configuration in each branch territory, sub-district dBm value is respectively:

P _MaxCfgCarrTs[A，1](dB)＝P _MaxCfgCarrTs[B，1](dB)+P _Offset[A](dB)＝10log1+10log(4/5)＝10log(4/5)；

Be that the descending first carrier time slot of branch territory, sub-district A maximum transmission power Configuration Values is 4/5=0.8mw.

P _MaxCfgCarrTs[A，2](dB)＝P _MaxCfgCarrTs[B，2](dB)+P _Offset[A](dB)＝10log2+10log(4/5)＝10log(8/5)；

Be that the A descending second carrier wave time slot maximum transmission power Configuration Values in branch territory, sub-district is 8/5=1.6mw.

P _MaxCfgCarrTs[A，3](dB)＝P _MaxCfgCarrTs[B，3](dB)+P _Offset[A](dB)＝10log1+10log(4/5)＝10log(4/5)；

Be that A descending the 3rd carrier wave time slot maximum transmission power Configuration Values in branch territory, sub-district is 4/5=0.8mw.

P _MaxCfgCarrTs[B，1](dB)＝P _MaxCfgCarrTs[B，1](dB)+P _Offset[B](dB)＝10log1+0＝10log1；

Be that the descending first carrier time slot of branch territory, sub-district B maximum transmission power Configuration Values is 1mw.

P _MaxCfgCarrTs[B，2](dB)＝P _MaxCfgCarrTs[B，2](dB)+P _Offset[B](dB)＝10log2+0＝10log2；

Be that the B descending second carrier wave time slot maximum transmission power Configuration Values in branch territory, sub-district is 2mw.

P _MaxCfgCarrTs[B，3](dB)＝P _MaxCfgCarrTs[B，3](dB)+P _Offset[B](dB)＝10log1+0＝10log1；

Be that B descending the 3rd carrier wave time slot maximum transmission power Configuration Values in branch territory, sub-district is 1mw.

250: whether set up descending each the carrier wave time slot maximum transmission power in each branch territory, sub-district that calculates reality according to the sub-district;

If the sub-district is set up, then need calculate the maximum power of each carrier wave time slot.Otherwise the maximum power of each carrier wave time slot is changed to 0.

To time slot 0, owing to assist not allocating power of carrier wave, the maximum transmission power of main carrier time slot is P _MaxAntCh[i (dB).For non-time slot 0, j the carrier wave time slot maximum transmission power actual value in branch territory, descending i sub-district is calculated as follows:

P _MaxCarrTs[i，j](dB)＝P _MaxCfgCarrTs[i，j](dB)-MAX(0，P _MaxCfgCell[i](dB)-P _MaxAntCh[i])(dB) (6)

In the formula, and MAX (0, P _MaxCfgCell[i] (dB)-P _MaxAntCh[i] (dB)) expression: if territory allocating power P is divided in the sub-district _MaxCfgCell[i] is (dB) greater than single antenna channels ability P _MaxAntCh[i] (dB) then needs the carrier power power of configuration to be carried out that geometric ratio is dwindled or dwindle in various degree by the carrier wave priority level.MAX represents to get higher value among both, if i.e. P _MaxCfgCell[i] (dB)＞P _MaxAntCh[i] (dB), value=P _MaxCfgCell[i] (dB)-P _MaxAntCh[i] (dB), territory downlink double/multi-load ripple time slot transmitting power sum overload is divided in the expression sub-district, then Pei Zhi carrier power power must dwindle to carry out overload protection; Otherwise value 0, expression branch territory, sub-district downlink double/multi-load ripple time slot transmitting power sum surpass each sub-district and divide territory antenna emissivities promptly to transship, and then Pei Zhi carrier power power needn't be done the overload protection processing.

In this example, if the sub-district is set up, and for non-time slot 0, descending each carrier wave time slot maximum transmission power actual value in each branch territory, sub-district equals:

P _MaxCarrTs[A，1](dB)＝P _MaxCfgCarrTs[A，1](dB)-MAX(0，P _MaxCfgCell[A](dB)-P _MaxAntCh[A])(dB)

＝10log(4/5)-MAX(0，10log(4/5)-10log1)＝10log(4/5)；

P _MaxCarrTs[A，2](dB)＝P _MaxCfgCarrTs[A，2](dB)-MAX(0，P _MaxCfgCell[A](dB)-P _MaxAntCh[A])(dB)

＝10log(8/5)-MAX(0，10log(4/5)-10log1)＝10log(8/5)；

P _MaxCarrTs[A，3](dB)＝P _MaxCfgCarrTs[A，3](dB)-MAX(0，P _MaxCfgCell[A](dB)-P _MaxAntCh[A])(dB)

＝10log(4/5)-MAX(0，10log(4/5)-10log1)＝10log(4/5)；

Descending first, second and third carrier wave time slot maximum transmission power actual value that is branch territory, sub-district A equals 0.8mw, 1.6mw, 0.8mw respectively.Because the sub-district divides territory A downlink double/multi-load ripple time slot transmitting power sum (3.2mw) not transship (24/5mw=4.8mw), so each carrier wave time slot power of configuration need not dwindle.

P _MaxCarrTs[B，1](dB)＝P _MaxCfgCarrTs[B，1](dB)-MAX(0，P _MaxCfgCell[B](dB)-P _MaxAntCh[B])(dB)

＝10log1-MAX(0，10log4-10log5)＝10log1；

P _MaxCarrTs[B，2](dB)＝P _MaxCfgCarrTs[B，2](dB)-MAX(0，P _MaxCfgCell[B](dB)-P _MaxAntCh[B])(dB)

＝10log2-MAX(0，10log4-10log?5)＝10log2；

P _MaxCarrTs[B，3](dB)＝P _MaxCfgCarrTs[B，3](dB)-MAX(0，P _MaxCfgCell[B](dB)-P _MaxAntCh[B])(dB)

＝10log1-MAX(0，10log4-10log5)＝10log1；

Descending first, second and third carrier wave time slot maximum transmission power actual value that is branch territory, sub-district B equals 1mw, 2mw, 1mw respectively.Because the sub-district divides territory B downlink double/multi-load ripple time slot transmitting power sum (4mw) not transship (8mw), so each carrier wave time slot power of configuration need not dwindle.

260: whether set up each descending single antenna maximum power in branch territory, sub-district of calculating reality according to the sub-district, divide the cell downlink maximum transmission power configuration in territory as each sub-district.

If the sub-district is set up, then need calculation plot time slot maximum power.Otherwise sub-district time slot maximum power is changed to 0.To time slot 0, sub-district time slot transmitted power equals P _MaxAntCh[i] (dB).For non-time slot 0, then descending full sub-district maximum transmission power actual value equals

P _MaxCell[i](dB)＝MIN(P _MaxAntCh[i](dB)，P _MaxCfgCell[i](dB)) (7)

In the formula, MIN represents to get smaller value in two parameters.

In the present embodiment, if the sub-district is set up, and for non-time slot 0, then descending full sub-district maximum transmission power equals for the actual value of branch territory, sub-district A, B respectively:

P _MaxCell[A](dB)＝MIN(P _MaxAntCh[A](dB)，P _MaxCfgCell[A](dB))

＝MIN(10log1，10log(4/5))＝10log(4/5)；

P _MaxCell[B](dB)＝MIN(P _MaxAntCh[B](dB)，P _MaxCfgCell[B](dB))

＝MIN(10log5，10log4)＝10log4；

That is:

Branch territory, sub-district A corresponding to many antennas maximum transmission power actual value conversion of full sub-district maximum transmission power 8mw is: 6 * (4/5) mw/ root=4.8mw;

Branch territory, sub-district B corresponding to many antennas maximum transmission power actual value conversion of full sub-district maximum transmission power 8mw is: 2 * 4mw/ root=8mw.

After finishing above-mentioned allocating cell branch territory A, each descending carrier time slot maximum transmission power of B and corresponding full sub-district maximum transmission power,, calculate descending each physical code channel power in each branch territory, sub-district (being step 130 among Fig. 1,140) according to method flow shown in Figure 3.

Because all the code channel power P on the territory are divided in each sub-district _PhchThe configuration and the carrier independent of [R, j, k], i.e. all available method shown in Figure 3 of the configuration of the transmitting power of N code channel on all carrier waves, therefore in the narration of following method only the first carrier with each branch territory, sub-district be that example is narrated, comprise the steps:

310: the virtual carrier time slot maximum transmission power that calculates each branch territory, sub-district;

To obtain the descending carrier time slot maximum transmit power P in branch territory, i sub-district by Fig. 2 flow process _MaxCarrTs[i, j] (dB) removes this branch territory, sub-district downlink ability deviation compensation, and promptly formula (8) obtains this branch territory, sub-district virtual carrier time slot maximum transmission power, divides the overload protection upper limit of each code channel power sum in the territory as virtual subdistrict;

$P_{\mathrm{MaxCarrT}}^V[i,j]\left(\mathrm{dB}\right)=P_{\mathrm{MaxCarrTs}}[i,j](i,j)-P_{\mathrm{Offset}}\left[i\right]\left(\mathrm{dB}\right)---\left(8\right)$

In this example, sub-district branch territory A, B virtual carrier time slot maximum transmission power are calculated as respectively:

$P_{\mathrm{MaxCarrT}}^V[A,1]\left(\mathrm{dB}\right)=P_{\mathrm{MaxCarrTs}}[A,1]\left(\mathrm{dB}\right)-P_{\mathrm{Offset}}\left[A\right]\left(\mathrm{dB}\right)=10\log (4/5)-10\log (1/5)=10\log 4;$

Be that branch territory, sub-district A virtual carrier time slot maximum transmission power is 4mw.

$P_{\mathrm{MaxCarrT}}^V[B,1]\left(\mathrm{dB}\right)=P_{\mathrm{MaxCarrTs}}[B,1]\left(\mathrm{dB}\right)-P_{\mathrm{Offset}}\left[B\right]\left(\mathrm{dB}\right)=10\log 1;$

Be that branch territory, sub-district B virtual carrier time slot maximum transmission power is 1mw.

320: the downlink physical code channel transmitting power history value P that carries on the reference cell branch territory that the extraction base station receives _Phch[R, j, k], wherein k is the code channel sequence number;

330: divide all N code channel power P on the territory with reference cell _Phch[R, j, k] sum is respectively with virtual carrier time slot maximum power P _MaxCarrT ^V[i, the j] power of exceeding overload protection is handled, and obtains the code channel power P in the virtual subdistrict branch territory _Phch ^V[i, j, k]; Promptly

$\underset{k=1}{\overset{N}{\mathrm{\Σ}}}{P}_{\mathrm{Phch}}[R,j,k]\left(\mathrm{dB}\right)\≤P_{\mathrm{MaxCarrT}}^V[i,j]\left(\mathrm{dB}\right)=\underset{k=1}{\overset{N}{\mathrm{\Σ}}}{P}_{\mathrm{Phch}}^V[i,j,k]\left(\mathrm{dB}\right);---\left(9\right)$

In this example, each downlink physical code channel transmitting power history value P on the reference cell branch territory of supposing to extract _Phch[R, j, k] (dB) is 10log2, then actually calculates 16 code channel transmitting power history value sums:

$\underset{k=1}{\overset{16}{\mathrm{\Σ}}}{P}_{\mathrm{Phch}}[R,1,k]\left(\mathrm{dB}\right)=10\log (2\×16)=10\log 32;$

The virtual carrier time slot maximum power 10log4, the virtual carrier maximum power 10log1 of virtual subdistrict B that surpass virtual subdistrict A respectively, i.e. therefore expression overload needs P _Phch[R, 1, k] (dB) (k=1,2 ... 16) exceed with 10log4,10log1 respectively and carry out geometric ratio and dwindle so that formula (9) sets up, that is:

$\underset{k=1}{\overset{16}{\mathrm{\Σ}}}{P}_{\mathrm{PhCh}}^V[R,1,k]\left(\mathrm{dB}\right)=10\log (32/8)=10\log 4;$

$\underset{k=1}{\overset{16}{\mathrm{\Σ}}}{P}_{\mathrm{PhCh}}^V[R,1,k]\left(\mathrm{dB}\right)=10\log (32/32)=10\log 1;$

Then must make new advances thus:

Divide territory A code channel power dBm value P corresponding to the sub-district _PhCh ^V[R, 1, k] (dB) (k=1,2 ... 16) be: 10log (4/16)=10log (1/4);

Divide territory B code channel power dBm value P corresponding to the sub-district _PhCh ^V[R, 1, k] (dB) (k=1,2 ... 16) be 10log (1/16).

Reference cell divides all 16 the code channel performance number 10log (1/16) on the B of territory to store as next history value.

340: the P that overload protection is obtained _Phch ^VThe power deviation (being branch territory, sub-district downlink ability deviation) in [i, j, k] compensation branch territory, i sub-district obtains actual branch territory, i sub-district code channel transmitting power dBm value.

$P_{\mathrm{Phch}}[i,j,k]\left(\mathrm{dB}\right)=P_{\mathrm{Phch}}^V[i,j,k]\left(\mathrm{dB}\right)+P_{\mathrm{OffSet}}\left[i\right]\left(\mathrm{dB}\right)---\left(11\right)$

In this example, convert branch territory, sub-district A, B respectively according to formula (11) and obtain actual code channel transmitting power dBm value:

$P_{\mathrm{Phch}}[A,1,k]=P_{\mathrm{Phch}}^V[A,1,k]+P_{\mathrm{OffSet}}\left[A\right]=10\log (1/4)+10\log (1/5)=10\log (1/20);$

$P_{\mathrm{Phch}}[B,1,k]=P_{\mathrm{Phch}}^V[B,1,k]+P_{\mathrm{OffSet}}\left[B\right]=P_{\mathrm{Phch}}^V[B,1,k]=10\log (1/16);$

Each sub-district divides the power configuration of each physical code channel in other carrier wave in territory identical with said method, so repeat no more.

In the past, calculated the descending code channel power that divides in each sub-district in the territory, calculated respectively,, therefore handled quite complicated no matter be that the access amount or the operand of parameter is all very big according to each 3 carrier wave in branch territory, sub-district, each carrier wave 16 code channel.The present invention utilizes the method for the calculating descending code channel power of sub-district under the configuration of branch territory, non-sub-district simply, obtain the code channel power in virtual subdistrict branch territory earlier, and then compensate the power deviation that bring in each branch territory, sub-district respectively, make that the access amount of parameter still is that operand obviously descends, thereby simplified processing procedure greatly.

To sum up, descending carrier time slot maximum power and cell downlink maximum power and downlink physical code channel transmitting power under the territory configuration are divided according to said method allocating multiple carrier sub-district in the base station in the sub-district, and carry out downstream signal according to this and launch, both compensated the performance impact of bringing because of the difference of each branch territory, sub-district single antenna channels emissivities, also avoided the carrier wave time slot transmission power overload of base station, also avoid the calculating of too much complexity simultaneously, made processing procedure simplify greatly.

The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.

Claims (10)

1. a sub-district divides the sub-district under the configuration of territory to realize the downstream signal method for transmitting, comprising:

A, base station side compensate the power deviation in each branch territory, sub-district according to the sub-district maximum transmission power, obtain the actual disposition power in each branch territory, sub-district; The actual disposition power in described each branch territory, sub-district is carried out the overload protection processing, be no more than the local antenna channels emissivities in each branch territory, sub-district with the multi-carrier time slot transmitting power summation that guarantees each branch territory, sub-district in the same sub-district, thereby determine that each final sub-district divides the descending carrier time slot power and the corresponding cell power in territory; Utilize configuration following sub-district in branch territory, non-sub-district to calculate the method for descending code channel power then, obtain the virtual code channel power in reference cell branch territory; Again described virtual code channel power is compensated the power deviation in described each branch territory, sub-district respectively, obtain the code channel power of each carrier wave reality in each branch territory, sub-district;

B, base station side are carried out the emission of cell downlink signal according to described each corresponding cell power in branch territory, sub-district, descending carrier time slot power and described descending code channel power thereof.

2. in accordance with the method for claim 1, it is characterized in that step a further comprises:

The described sub-district maximum transmission power that a1, base station side provide when setting up in the sub-district according to base station application part NBAP, by compensating the downlink ability deviation in each branch territory, sub-district, convert out each descending single antenna maximum transmission power in branch territory, sub-district and each sub-district and divide the territory descending each carrier wave time slot maximum transmission power;

A2, when the local antenna channels emissivities that surpass branch territory, described sub-district when descending each the carrier wave time slot maximum transmission power sum in branch territory, described sub-district are promptly transshipped, described base station side is done overload protection to descending each the carrier wave time slot maximum transmission power in branch territory, described sub-district and is handled, again convert out described each sub-district and divide the territory descending each carrier wave time slot maximum transmission power, and carry out the cell downlink maximum transmission power configuration in this branch territory, sub-district according to the descending single antenna maximum transmission power in branch territory, described sub-district of conversion again; Otherwise directly the descending single antenna maximum transmission power in branch territory, described sub-district according to the conversion of step a1 carries out the cell downlink maximum transmission power configuration in this branch territory, sub-district;

A3, described base station will utilize the method for the calculating descending code channel power of sub-district under the configuration of branch territory, non-sub-district; each branch territory, the sub-district virtual carrier time slot maximum power that obtains is the upper limit; the downlink physical code channel transmitting power history value sum of carrying on the reference cell branch territory of extracting is carried out overload protection to be handled; thereby obtain the descending code channel performance number in each virtual subdistrict branch territory; then the descending code channel performance number in described each virtual subdistrict branch territory is compensated the downlink ability deviation in described each branch territory, sub-district respectively, configure descending code channel power in each actual branch territory, sub-district.

3. in accordance with the method for claim 2, it is characterized in that step (a1) further comprises:

The reference cell of a1-1, selection one sub-district is divided the territory, calculates configuration and divides the single antenna maximum transmission power P in territory for described reference cell _MaxcfgCell[R];

A1-2, with described P _MaxcfgCell[R] is as the criterion, and divided the single antenna maximum power P in territory by each sub-district _MaxAntCh[i] calculates the single antenna channels power capability deviation P in each branch territory, sub-district _OffSet[i];

A1-3, described reference cell divided the single antenna maximum transmission power P in territory _MaxCfgCellThe single antenna channels power capability deviation P in territory is divided in described each sub-district of [R] compensation _OffSet[i] obtains the descending single antenna maximum transmission power P in described each branch territory, sub-district _MaxCfgCell[i];

A1-4, described reference cell divided descending each carrier wave time slot maximum transmission power P in territory _MaxCfgCarrTsThe single antenna channels power capability deviation P in territory is divided in described each sub-district of [R, j] compensation _OffSet[i] obtains descending each carrier wave time slot maximum transmission power P in described each branch territory, sub-district _MaxCfgCarrTs[i, j];

Wherein, described i=1,2 ... L, described L are the number in branch territory in sub-district in the described sub-district; Described j=1,2 ... M, described M are the descending carrier number in branch territory, described sub-district; Described R represents described reference cell branch territory.

4. in accordance with the method for claim 3, it is characterized in that,

Step a1-1 chooses described reference cell branch territory by best mode; That is: the branch territory, sub-district with all antenna channels transmitted power summation maximums is described reference cell branch territory; Perhaps, be described reference cell branch territory with the branch territory, sub-district that reaches a calibration yield value; Perhaps fixing branch territory, wherein arbitrary sub-district is described reference cell branch territory.

5. in accordance with the method for claim 3, it is characterized in that step a1-1 calculates described P by following formula _MaxcfgCell[R]:

P _MaxcfgCell[R](dB)＝P _MxCfgCell(dB)-10*log(N _Ant[R])

In the formula: P _MaxcfgCell[R] is described P (dB) _MaxcfgCellThe dBm value of [R]; Described P _MxCfgCell(dB) the dBm value that receives for described base station according to sub-district many antennas maximum transmission power of described reference cell branch territory configuration; Described N _AntThe number of antennas that [R] divides the territory for described reference cell;

Step a1-2 calculates described P according to following formula _OffSet[i]:

P _OffSet[i](dB)＝P _MaxAntCh[i](dB)-P _MaxAntCh[R](dB)

In the formula, described P _OffSet[i] is described P (dB) _OffSetThe dBm value of [i]; Described P _MaxAntCh[i] is the dBm value of the descending single antenna channels maximum transmission power in branch territory, i sub-district (dB); Described P _MaxAntCh[R] is the local maximum transmit power dBm of the descending single antenna channels value that described reference cell is divided the territory (dB);

Step a1-3 calculates described P according to following formula _MaxCfgCell[i]:

P _MaxCfgCell[i](dB)＝P _MaxcfgCell[R](dB)+P _OffSet[i](dB)

In the formula: described P _MaxCfgCell[i] is described P (dB) _MaxCfgCellThe dBm value of [i];

Step a1-4 calculates described P according to following formula _MaxCfgCarrTs[i, j]:

P _MaxCfgCarrTs[i，j](dB)＝P _MaxCfgCarrTs[R，j](dB)+P _Offset[i](dB)

In the formula: described P _MaxCfgCarrTs[i, j] is described P (dB) _MaxCfgCarrTsThe dBm value of [i, j]; Described P _MaxCfgCarrTs(dB is that the base station is according to the described P that receives [R, j] _MaxCfgCellEach carrier wave time slot maximum transmission power dBm value of the described reference cell branch territory that calculates.

6. in accordance with the method for claim 2, it is characterized in that step a2 further comprises:

If a2-1 sets up described sub-district, then execution in step (a2-2) is calculated the maximum power of each each carrier wave time slot of branch territory, sub-district; Otherwise the maximum power of described each each carrier wave time slot of branch territory, sub-district is changed to 0;

A2-2, when

The time, represent described overload, must divide the territory descending each carrier wave time slot maximum transmission power P described each sub-district _MaxCfgCarrTs[i, j] is reduced into P _MaxCarrTs[i, j] makes

Set up; Described P _MaxCarrTs[i, j] is descending each carrier wave time slot maximum transmission power in described each branch territory, sub-district of conversion again; Described P _MaxCell[i] is the sub-district maximum transmission power in each the branch territory, sub-district after the conversion again; Otherwise,

Then not to described P _MaxCfgCarrTs[i, j] dwindles;

A2-3, set up when the sub-district, the cell downlink maximum transmission power in branch territory, i sub-district is configured to: P _MaxCell[i]=MIN (P _MaxAntCh[i], P _MaxCfgCell[i])

In the formula, MIN represents to get described P _MaxAntCh[i], P _MaxCfgCellMinimum value in [i].

7. in accordance with the method for claim 6, it is characterized in that step a2-2 divides the territory descending each carrier wave time slot maximum transmission power P described each sub-district by following formula _MaxCfgCarrTs[i, j] geometric ratio is dwindled:

P _MaxCarrTs[i，j](dB)＝P _MaxCfgCarrTs[i，j](dB)-MAX(0，P _MaxCfgCell[i](dB)-P _MaxAntCh[i])(dB)

In the formula, MAX represents to get maximum in the parameter, that is:

If P _MaxCfgCell[i] (dB)＞P _MaxAntCh[i] (dB), MAX value=P _MaxCfgCell[i] (dB)-P _MaxAntCh[i] (dB) promptly represents described overload, then described each sub-district must be divided the territory descending each carrier wave time slot maximum transmission power P _MaxCfgCarrTs[i, j] geometric ratio is dwindled described MAX value, to convert described P again _MaxCarrTs[i, j] and described P _MaxCell[i]; Otherwise described each sub-district divides the territory descending each carrier wave time slot maximum transmission power P _MaxCfgCarrTs[i, j] and described

Need not dwindle.

8. in accordance with the method for claim 6, it is characterized in that step a2-2 divides the territory descending each carrier wave time slot maximum transmission power P described each sub-district _MaxCfgCarrTs[i, j] dwindles, and is to carry out dwindling in various degree by the carrier wave priority level, makes

9. in accordance with the method for claim 5, it is characterized in that step a3 further comprises:

A3-1, divide the territory descending each carrier wave time slot maximum transmission power P described each sub-district _MaxCarrTs[i, j] removes the single antenna channels power capability deviation P in branch territory, corresponding sub-district _OffSet[i] obtains respective cell branch territory virtual carrier time slot maximum transmission power P _MaxCarrT ^V[i, j] divides the overload protection upper limit of each code channel power sum in the territory as each virtual subdistrict;

The downlink physical code channel transmitting power history value P that carries on the described reference cell branch territory that a3-2, extraction base station side receive _Phch[R, j, k], wherein k is the code channel sequence number;

A3-3, all N the code channel power P of described reference cell being divided the territory _Phch[R, j, k] sum

Respectively with each virtual carrier time slot maximum power P _MaxCarrT ^V[i, the j] power of exceeding overload protection is handled, and obtains the code channel power P in the virtual subdistrict branch territory _Phch ^V[i, j, k]; That is:

$\underset{k=1}{\overset{N}{\mathrm{\Σ}}}{P}_{\mathrm{Phch}}[R,j,k]\≤P_{\mathrm{MaxCarrT}}^V[i,j]=\underset{k=1}{\overset{N}{\mathrm{\Σ}}}{P}_{\mathrm{Phch}}^V[i,j,k]$

And described reference cell is divided the P in territory _Phch ^V[R, j, k] is as next described P _Phch[R, j, k] storage;

A3-4, with described P _Phch ^V[i, j, k] compensate each branch territory, sub-district single antenna channels power capability deviation P _OffSet[i] obtains each actual branch territory, sub-district code channel transmitting power.

10. in accordance with the method for claim 9, it is characterized in that,

Step a3-1 obtains described P according to following formula _MaxCarrT ^V[i, j]: $P_{\mathrm{MaxCarrT}}^V[i,j]\left(\mathrm{dB}\right)=P_{\mathrm{MaxCarrTs}}[i,j]\left(\mathrm{dB}\right)-P_{\mathrm{Offset}}\left[i\right]\left(\mathrm{dB}\right)$

In the formula: described P _MaxCarrT ^V[i, j] is described P (dB) _MaxCarrT ^VThe dBm value of [i, j];

The described P of step a3-2 _Phch[R, j, k] is initial value by each code channel transmitting power of reference cell branch territory of described NBAP configuration at initial time;

Step a3-4 obtains each branch territory, sub-district code channel transmitting power P of described reality according to following formula _Phch[i, j, k]:

In the formula: described P _Phch[i, j, k] is described P (dB) _PhchThe dBm value of [i, j, k].

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