CN101466138A - Method, device and system for configuring power - Google Patents

Abstract

The invention discloses a power configuration method, device and system. By calculating the power offset of the UE, the base station expects the power of the signal sent by the UE to arrive at the base station into two parts: the expected power at the cell level and the power offset of the UE. The power offset of the UE can be configured differently according to the characteristics of the user equipment , so as to realize differentiated configuration of different UEs and meet the requirements of different user equipments, such as rate requirements and service requirements.

Description

Power configuration method, device and system

technical field

The present invention relates to the technical field of communication, in particular to a power configuration method, a power configuration device and a power configuration system.

Background technique

With the emergence of the concept of broadband wireless access, a new generation of technology centered on Orthogonal Frequency Division Multiplexing (OFDM) has gradually matured. 3GPP decided to use the technology developed for B3G or 4G in the past to use the 3G frequency band. And developed a long-term evolution plan (Long Term Evolution, LTE). LTE technology greatly improves the spectrum efficiency and communication rate of the system, and supports a maximum bandwidth of 20MHz. Under this bandwidth, the downlink peak rate of the cell can reach 100Mbps, and the uplink peak rate can reach 50Mbps, which greatly improves the performance of the user equipment (UE) at the edge of the cell, increases the capacity of the cell and reduces system delay.

As an important technology in the LTE system, power control technology aims to minimize the transmit power of each user equipment on the premise of satisfying the communication quality of each user equipment. Power control can not only reduce the power consumption of the system and prolong the service life of the battery of the mobile station, but more importantly, it can reduce the interference of the system and maximize the capacity of the system.

In uplink power control, fast fading is compensated by scheduling and Adaptive Modulate Coding (AMC) algorithm, and path loss and shadow fading are compensated by slow power control. The LTE cells are same-frequency cells, so the same-frequency interference between sectors can be reduced through power control to ensure that the system capacity can meet higher requirements. The uplink power control mechanism is an important means to suppress inter-cell interference, so it is a key research content in the LTE system.

The main function of physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) power control is to reduce interference to neighboring cells and improve cell throughput, while ensuring the cell edge rate of user equipment. In the process of configuring the transmission power of the PUSCH, a parameter P _{o_PUSCH} is involved, and this parameter indicates the power at which the base station expects the signal sent by the UE to arrive at the base station.

During the research and practice of the prior art, the inventors of the present invention found that, in the prior art, in the process of setting the transmission power of the PUSCH, the _{Po_PUSCH} parameter is set for the whole cell (cell level). But in fact, the characteristics of each UE may be different, and using exactly the same power setting parameters cannot fully meet the requirements of different users, such as rate requirements and service requirements.

Contents of the invention

The power configuration method, power configuration device and power configuration system provided by the embodiments of the present invention can combine the characteristics of different user equipments during the power configuration process to meet the requirements of different user equipments.

An embodiment of the present invention provides a power configuration method, including:

Obtain cell-level expected power;

calculating the power offset of the user equipment UE;

According to the desired cell-level power of the base station and the power offset of the UE, set the power at which the base station expects a signal sent by the UE to arrive at the base station.

An embodiment of the present invention provides a power configuration device, including:

The first unit is used to obtain cell-level expected power;

The second unit is used to calculate the power offset of the UE;

The third unit is configured to set the power at which the power configuration device expects the signal sent by the UE to arrive at the base station according to the expected cell-level power obtained by the first unit and the power offset of the UE calculated by the second unit .

An embodiment of the present invention provides a power configuration system, including the power configuration device according to any one of claims 10 to 14, and a user equipment UE communicating with the power configuration device.

In the technical solution provided by the embodiment of the present invention, by calculating the power offset of the UE, the base station expects the power of the signal sent by the UE to arrive at the base station into two parts: the expected power at the cell level and the power offset of the UE. The power offset of the UE Different configurations can be performed according to the characteristics of the user equipment, so as to realize the differentiated configuration of different UEs and meet the requirements of different user equipments, such as rate requirements and service requirements.

Description of drawings

FIG. 1 is a flowchart of a power configuration method according to Embodiment 2 of the present invention;

FIG. 2 is a flow chart of a third power configuration method according to Embodiment 3 of the present invention;

3 is a schematic structural diagram of a fourth power configuration device according to Embodiment 4 of the present invention;

Fig. 4 is a schematic structural diagram of a power configuration device according to Embodiment 5 of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Since different UEs have different performances, and user levels may be different, and different services have different power requirements, therefore, using exactly the same _{Po_PUSCH} to configure power cannot fully meet the needs of different users, such as rate requirements and Business needs.

Embodiments of the present invention provide a power configuration method, a power configuration device, and a power configuration system, which will be described in detail below.

Embodiment 1. A power configuration method, comprising:

Obtain cell-level expected power;

calculating a power offset of the user equipment;

According to the cell-level expected power of the base station and the power offset of the user equipment, set the power (P _{o_PUSCH} ) when the base station expects the signal sent by the user equipment to arrive at the base station.

The _{Po_PUSCH} configuration method in the embodiment of the present invention divides _{Po_PUSCH} power into cell-level desired power and user equipment power offset. Among them, the power at the cell level is configured jointly by all user equipments in the cell, and the power offset of the user equipment can be configured differently according to the actual situation of the user equipment), so as to realize the differentiated configuration of _{Po_PUSCH} for different user equipments. Compared with the prior art that all user equipments in a cell are configured with the same _{Po_PUSCH} , it reflects the differentiated requirements of user equipments.

Embodiment 2. A power configuration method, the flow of which is shown in FIG. 1 , including:

A1, obtain cell-level expected power;

In an LTE system, a base station is generally an enhanced base station (eNB).

In the embodiment of the present invention, _{Po_PUSCH} is divided into cell-level expected power (P _{o_NOMINAL_PUSCH} ) and UE-level power offset. Among them, the cell-level expected power indicates the target signal power level expected by the base station under the reference transmission format (Transmit Format, TF), that is, the default value of the power set by the base station for the cell when the signal of the expected user equipment arrives at the base station. In the embodiment of the present invention, the cell-level expected power is a reference scalar configured by the base station for the power of the user equipment in the cell, and generally can be set conservatively.

In specific implementation, the first method can be adopted: P _{o_NOMINAL_PUSCH} can be set to a fixed value. Alternatively, the second method can also be used: P _{o_NOMINAL_PUSCH} can be expressed as:

P _{o_NOMINAL_PUSCH} =α(SINR _{o_NOMINAL} +IN)+(1-α)(P _{max_NOMINAL} -10log M ₀ )

The meaning of each parameter variable is as follows:

α: partial compensation factor in PUSCH power control;

Interfere Noise Power (Interfere Noise, IN): Indicates the average interference noise power of each resource block (RB) of PUSCH;

RB (Resource Block): resource block;

M ₀ : Indicates the number of RBs required when the guaranteed rate is GBR _min and the reference TF format is used;

GBR _min is the minimum guaranteed bit rate of the cell;

P _{max_NOMINAL} : Indicates the UE maximum transmit power at the cell level;

QoS: quality of service;

SINR _{0_NOMINAL} : Indicates the signal-to-interference-noise ratio that the base station expects to achieve for the guaranteed QoS type indication (QCI) in the reference TF format. In this embodiment, the guaranteed QCI is set by the base station, which is the minimum quality of service that needs to be guaranteed by the cell (including the minimum requirements for data transmission rate, packet loss rate, bit error rate, etc.).

It can be understood that if the second method is adopted, _{Po_NOMINAL_PUSCH} can be dynamically changed, and it can be regularly judged whether the difference between the current network interference noise IN value and the IN reference value exceeds the preset threshold; if so, recalculate the cell according to the current IN value level desired power, and modify the IN reference value to the current IN value.

For example, when the interference noise changes, the value of _{Po_NOMINAL_PUSCH} can be adjusted by updating the average interference noise power (IN) of each RB. When the interference noise of the cell increases, the IN value becomes larger, and the transmit power of the UE is increased by increasing the value of _{Po_NOMINAL_PUSCH} , so as to ensure that the UE can adapt to the change of interference and ensure the performance of the UE.

The specific update process is as follows: When the preset update period arrives (for example: a judgment is made every 30 seconds):

if(|α·(IN _PUSCH (i)-IN _{PUSCH_ref} )|>IN _{Th_PUSCH} )/*Judge whether the absolute value of the product of the difference between IN _PUSCH (i) and IN _{PUSCH_ref} and α exceeds the set IN threshold value*/

{

 

IN _{PUSCH_ref} = IN _PUSCH (i); /*Update P _{o_NOMINAL_PUSCH} , let IN _{PUSCH_ref} be the current IN value*/

}

else P _{o_NOMINAL_PUSCH} (i)=P _{o_NOMINAL_PUSCH} (i-1)/*Keep the current IN value unchanged*/

;

The meaning of each parameter variable is as follows:

IN _PUSCH (i), current network interference noise;

IN _{Th_PUSCH} : set IN threshold value;

IN _{PUSCH_ref} : The reference value for each update.

A2, calculating the power offset of the user equipment;

In this embodiment, the power offset (P _{o_UE_PUSCH} ) of the user equipment is a power offset set for each user equipment on the basis of the expected power at the cell level, so as to reflect differences between different user equipments. In general, different UEs have different capabilities (such as hardware performance), user levels may be different, and different services have different power requirements. Using exactly the same power settings cannot fully meet the needs of different users, such as speed requirements and business needs.

In the embodiment of the present invention, the calculation of the power offset of the user equipment is calculated according to the maximum transmit power of the user equipment, or calculated according to the guaranteed service rate of the service used by the user equipment. The maximum transmit power of the UE can be: the maximum transmit power corresponding to the UE capability, or the maximum transmit power set by the base station according to the user level of the UE; the maximum transmit power corresponding to the UE capability can be the maximum transmit power actually supported by the UE hardware Power or the maximum transmission power corresponding to the network supported by the user, such as: users who support high-speed networks can obtain higher power than users who only support low-speed networks, and there can be various specific user capabilities, which do not constitute a limitation of the present invention limit.

Based on this, various implementation modes are provided in the embodiment of the present invention:

method one:

The power offset of the user equipment is calculated according to the maximum transmission power supported by the hardware of the user equipment. Different user equipments have different maximum transmission powers for sending data supported by their hardware, and various brand manufacturers can produce user equipments with different powers according to their needs. During the interaction process of the user equipment, the base station may actively obtain the maximum transmission power supported by the hardware of the user equipment for sending data, and may also require the user equipment to report the maximum transmission power supported by its own hardware.

Method 2:

It can be understood that, in the embodiment of the present invention, the power offset of the user equipment may also be calculated according to the maximum transmission power corresponding to the user level. For example: GSM users are set to higher power, M-Zone or Shenzhouxing users are set to lower power.

Regardless of whether the user's maximum transmit power is the maximum transmit power actually supported by the hardware (method 1) or the maximum transmit power corresponding to the user level set by the base station (mode 2), the calculation process can be as follows, and the specific calculation method is just an example , does not constitute a limitation to the present invention.

Calculate the difference between the maximum transmit power of the user equipment and the cell-level maximum transmit power set by the base station for the entire cell;

ΔP _max =P _max -P _{max_NOMINAL}

Calculate the power bias of the user equipment:

In this embodiment, α·SINR _{o_UE} can be set as a constant value by the base station, regardless of user differences.

Mode 3: In order to meet the power requirements of users using different services, the power offset of the user equipment is also calculated according to the guaranteed service rate of the services used by the user equipment, specifically including:

Calculate the number of bits MPR _UE transmitted by each uplink RB of the user equipment according to the guaranteed service rate of the service used by the user equipment;

${\mathrm{<span\; class="notranslate">\; MPR</span>}}_{\mathrm{<span\; class="notranslate">\; UE</span>}}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; 0.001</span>}<span\; class="notranslate">\; \&CenterDot;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; GBR</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; \&CenterDot;</span><span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; \&CenterDot;</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; GBR</span>}}_{\mathrm{<span\; class="notranslate">\; no</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; GBR</span>}}_{\mathrm{<span\; class="notranslate">\; min</span>}}<span\; class="notranslate">\; )</span>}{\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; o</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; sc</span>}}^{\mathrm{<span\; class="notranslate">\; RB</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; symbs</span>}}^{\mathrm{<span\; class="notranslate">\; UL</span>}}}<span\; class="notranslate">\; ;</span>$

The GBR ₁ +...+GBR _n is the guaranteed service rate of the service used by the user equipment, and the GBR _min is the minimum guaranteed bit rate of the cell, because in the above-mentioned calculation process of _{Po_NOMINAL_PUSCH} , SINR _{o_NOMINAL} takes into account the impact of GBR _min , so Subtract the GBR _min in this formula.

Calculate the signal-to-interference and noise ratio increment SINR _{o_UE} of the user according to the number of bits transmitted by each uplink RE.

${\mathrm{<span\; class="notranslate">\; SINR</span>}}_{\mathrm{<span\; class="notranslate">\; o</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; UE</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 10</span>}{\mathrm{<span\; class="notranslate">\; log</span>}}_{\mathrm{<span\; class="notranslate">\; 10</span>}}<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; 2</span>}}^{{\mathrm{<span\; class="notranslate">\; MPR</span>}}_{\mathrm{<span\; class="notranslate">\; UE</span>}}<span\; class="notranslate">\; *</span>\mathrm{<span\; class="notranslate">\; 1.25</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$

Calculate the power offset of the user according to the SINR increment

In the above formula, the meaning of each parameter variable is as follows:

GBR ₁ ,..., GBR _n respectively represent the service guaranteed rate (GuaranteedBit Rate, _GBR ) corresponding to QCI ₁ ,..., QCI n;

GBR _min : indicates the minimum guaranteed bit rate of the cell;

MPR: the number of bits transmitted by each uplink RE of the UE;

一个RB上的子载波数；

一个RB上的PUSCH符号个数。

The number of subcarriers on one RB;

The number of PUSCH symbols on one RB.

It can be understood that, in the embodiment of the present invention, the user bias power can also be calculated by considering the guaranteed rate of the service and the maximum transmission power of the user at the same time.

The following examples are used for illustration, and the formula in this example is only used as a specific realization of this function, and does not constitute a limitation to the present invention.

The expression of P _{o_UE_PUSCH} is:

in: ${\mathrm{SINR}}_{o\_\mathrm{UE}}=10{\log }_{10}(2^{{\mathrm{MPR}}_{\mathrm{UE}}*1.25}-1)$

${\mathrm{<span\; class="notranslate">\; MPR</span>}}_{\mathrm{<span\; class="notranslate">\; UE</span>}}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; 0.001</span>}<span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; GBR</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; GBR</span>}}_{\mathrm{<span\; class="notranslate">\; no</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; GBR</span>}}_{\mathrm{<span\; class="notranslate">\; min</span>}}<span\; class="notranslate">\; )</span>}{\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; o</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; sc</span>}}^{\mathrm{<span\; class="notranslate">\; RB</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; symbs</span>}}^{\mathrm{<span\; class="notranslate">\; UL</span>}}}$

ΔP _max =P _max -P _{max_NOMINAL}

It can be seen from the expression of P _{o_UE_PUSCH} that ΔP _max and SINR _{o_UE} determine the change of P _{o_UE_PUSCH} . ΔP _max is the difference between the maximum transmit power of the UE and P _{max_NOMINAL} , and is used to represent the difference between different users. The larger the ΔP _max , the stronger the capability of the UE, and the base station can give the user more power when allocating it. In addition, in the setting of SINR _{o_UE} , the needs of different services of users are fully considered. For different services (can be identified by QCI), different guaranteed bit rates are used to set P _{o_UE_PUSCH} of each UE.

Here, P _max may be the maximum transmission power supported by the hardware of the user equipment, or may be the maximum transmission power corresponding to the user level configured by the base station.

A3. Set, according to the desired cell-level power of the base station and the power offset of the user equipment, the power at which the base station expects a signal sent by the user equipment to arrive at the base station.

P _{o_PUSCH} =P _{o_NOMINAL_PUSCH} +P _{o_UE_PUSCH}

In this embodiment, P _{o_PUSCH} is divided into two parts for calculation, namely P _{o_NOMINAL_PUSCH} and P _{o_UE_PUSCH} ;

_{Po_NOMINAL_PUSCH} is configured for all user equipment in the cell, and _{Po_UE_PUSCH} is a power offset configured for users individually according to user characteristics, so as to realize differentiated configuration of different UEs and meet the needs of different user equipment, such as rate requirements and business need.

Embodiment 3. A power configuration method, comprising:

B1, obtaining cell-level expected power set by the base station;

B2, calculating the power offset of the user equipment;

The power offset of the user equipment is calculated according to the capabilities of the user equipment and the services used.

B3, according to the cell-level expected power of the base station and the power offset of the user equipment, setting the power when the base station expects the signal sent by the user equipment to arrive at the base station;

B4. Set the uplink shared channel power of the user equipment according to the power when the base station expects the signal sent by the user equipment to arrive at the base station.

P _PUSCH =min{P _max , 10log M+P _{o_PUSCH} +α·PL+ _ΔTF (TF)+f}

It can be seen that P _{o_PUSCH} , α and path loss (Path Loss, PL) are important parameters for determining the transmit power of the PUSCH.

in:

P _{o_PUSCH} : that is, the base station expects the power of the signal sent by the user equipment to arrive at the base station;

M: transmission bandwidth of PUSCH;

P _max : indicates the maximum transmit power of the UE;

PL: Downlink path loss measured by UE;

Δ _TF (TF): the power difference caused by the selection of different modulation and coding methods;

f: PUSCH closed-loop power adjustment value.

In the embodiment of the present invention, after calculating _{Po_PUSCH} , the base station can calculate the physical uplink shared channel power of the user equipment according to _{Po_PUSCH} , and send the calculated physical uplink shared channel power to the user, and the user can Physical uplink shared channel power to send data.

It can be seen from the formula that the user's uplink shared channel power can also be calculated with reference to other factors, such as: path loss (PL), power compensation factor, and other parameters can be measured or configured according to the actual situation of the network.

Embodiment 3 of the present invention, on the basis of Embodiment 2, uses the calculated _{Po_PUSCH} power to set the transmission power of the user equipment, thereby realizing differential control of the transmission power of the user equipment by the base station.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: ROM, RAM, disk or CD, etc.

Embodiment 4. A power configuration device, the structural diagram of which is shown in FIG. 3 , including:

The first unit 310 is configured to obtain cell-level expected power;

The second unit 320 is configured to calculate a power offset of the user equipment;

The third unit 330 is configured to set _{Po_PUSCH} according to the expected cell-level power of the base station and the power offset of the user equipment.

It can be understood that this embodiment may further include: a fourth unit configured to set the transmit power of the UE uplink shared channel according to the P _{o_PUSCH} set by the power configuration device.

The power configuration device described in this embodiment may be a device that can perform power configuration, such as a base station or a base station controller, or a sub-device inside the base station or the base station controller.

Embodiment 5, a power configuration device, the structural diagram is shown in Figure 4, including:

The first unit 410 is configured to obtain cell-level expected power set by the base station;

The second unit 420 is configured to calculate a power offset of the user equipment;

The third unit 430 is configured to set _{Po_PUSCH} according to the expected cell-level power of the base station and the power offset of the user equipment.

The first unit 410 may include:

The second parameter acquisition subunit 411 is used to acquire the signal-to-interference-noise ratio, the interference noise IN value and the cell-level maximum transmit power expected by the power configuration device;

The third calculation subunit 412 is configured to calculate the cell-level expected power according to the signal-to-interference-noise ratio, interference noise IN value, and cell-level maximum transmission power expected to be achieved by the power configuration device acquired by the second parameter acquisition subunit ;

Unit 1 may also include:

Judgment subunit 413, for regularly judging whether the difference between the interference noise IN value of the current network and the IN reference value exceeds a preset threshold;

The update subunit 414 is configured to trigger the second parameter acquisition subunit and the third calculation subunit to recalculate the cell-level expected power according to the current IN value when the determination result of the determination subunit is yes.

The power configuration device described in this embodiment may be a device capable of power configuration, such as a base station and a base station controller.

The second unit 420 includes:

The first parameter acquisition subunit 421 is used to acquire the cell-level UE maximum transmission power and UE maximum transmission power set by the power configuration device for the entire cell, the maximum transmission power of the UE is the maximum transmission power corresponding to the UE capability, or the power configuring the maximum transmission power set by the device according to the user level of the UE;

The first calculation subunit 422 is configured to calculate the difference between the maximum transmission power of the UE acquired by the first parameter acquisition subunit and the maximum transmission power of the cell level, and calculate the signal that the power configuration device expects the UE to send to reach the base station time power.

The second unit 420 may also include:

The guaranteed service rate obtaining subunit 423 is used to obtain the guaranteed service rate of the UE's current service;

The second calculation subunit 424 is configured to calculate the power offset of the UE according to the guaranteed service rate of the UE's current service acquired by the guaranteed service rate obtaining subunit.

Embodiment 6, a power configuration system, including the power configuration device described in Embodiment 4 or Embodiment 5 above, and user equipment communicating with the power configuration device.

The power configuration device and the power configuration system provided by the embodiments of the present invention can run, but are not limited to, the power configuration methods described in Embodiments 1 to 4 of the present invention.

The above embodiments of the present invention can generally be applied to LTE or enhanced (LTE+) communication systems. It can be understood that the above embodiments can also be applied to other communication systems with similar structures, and the specific application system does not constitute a limitation of the present invention.

The power configuration method and the base station provided by the embodiment of the present invention are described above in detail. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiment is only used to help understand the method of the present invention. and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. limits.

Claims (15)

1, a kind of power distribution method is characterized in that, comprising:

Obtain cell-level expectation power;

Calculate the power bias of user equipment (UE);

According to the power bias of the cell-level of described base station expectation power and UE, the power when the signal of expecting that described UE sends in the base station being set arriving the base station.

2, the method for claim 1, it is characterized in that, the power bias of described UE calculates according to the maximum transmission power of described UE, and the maximum transmission power of described UE is the pairing maximum transmission power of UE ability, or the base station is according to the set maximum transmission power of the user class of UE;

The process that described maximum transmission power according to described UE calculates the power bias of UE comprises:

Obtaining the base station is the cell-level maximum transmission power of whole sub-district setting and the maximum transmission power of UE;

According to the difference of actual maximum transmission power and the described cell-level maximum transmission power of described UE, calculate the power bias of described UE.

3, method as claimed in claim 2 is characterized in that, the power bias that calculates described UE according to the difference of the maximum transmission power of described UE and described cell-level maximum transmission power specifically comprises:

Calculate the maximum transmission power of UE and the difference DELTA P of described cell-level maximum transmission power _Max

Calculate the power bias P of UE _{O_UE_PUSCH}

Wherein:

α: part compensating factor in the control of expression PUSCH power;

Δ P _Max: the maximum transmission power of expression UE and the difference of described cell-level maximum transmission power;

SINR _{O_UE}Signal Interference and Noise Ratio increment for the user.

4, the method for claim 1 is characterized in that, the power bias of described UE uses professional business to guarantee that speed calculates according to described UE.

5, method as claimed in claim 4 is characterized in that, uses professional business to guarantee the power bias of the described UE of rate calculations according to described UE, specifically comprises:

The business of using according to described UE guarantees the bit number that each ascending resource piece RE of this UE of rate calculations transmits;

Calculate described user's Signal Interference and Noise Ratio increment according to the bit number of described each the ascending resource piece RE transmission that calculates;

Power bias according to the described user of described Signal Interference and Noise Ratio incremental computations.

6, the method for claim 1 is characterized in that, also comprises: according to the desired Signal Interference and Noise Ratio that reaches in base station, interference noise IN value and cell-level maximum transmission power, calculate described cell-level expectation power.

7, method as claimed in claim 6 is characterized in that, further comprises:

Whether the difference of regularly judging the interference noise IN value of current network and IN fiducial value exceeds is preset thresholding; If then recomputate cell-level expectation power according to current I N value.

8, as any described method of claim 1 to 7, it is characterized in that, also comprise:

Power when expecting that according to described base station signal that described UE sends arrives the base station is provided with the transmitting power of UE Uplink Shared Channel.

9, method as claimed in claim 8 is characterized in that, described base station is the enhancing base station eNB of Long Term Evolution plan LTE system, and described Uplink Shared Channel is Physical Uplink Shared Channel PUSCH.

10, a kind of power configuration device is characterized in that, comprising:

First module is used to obtain cell-level expectation power;

Unit second is used to calculate the power bias of UE;

Unit the 3rd is used for the power bias of the UE that calculates in the described cell-level expectation power that obtains according to described first module and described Unit second, the power when signal that the power configuration device expects that described UE sends being set arriving the base station.

11, power configuration device as claimed in claim 10 is characterized in that, described Unit second comprises:

The first parameter acquiring subelement, being used to obtain the power configuration device is cell-level UE maximum transmission power and the UE maximum transmission power that whole sub-district is provided with, the maximum transmission power of described UE is the pairing maximum transmission power of UE ability, or the power configuration device is according to the set maximum transmission power of the user class of UE;

First computation subunit is used for the maximum transmission power of the UE that obtains according to the described first parameter acquiring subelement and the difference of described cell-level maximum transmission power, the power when the rated output inking device expects that signal that described UE sends arrives the base station.

12, power configuration device as claimed in claim 10 is characterized in that, described Unit second comprises:

The professional speed that guarantees obtains subelement, is used to obtain the business assurance speed of UE current business;

Second computation subunit is used for guaranteeing speed according to the described professional business of the UE current business that speed acquisition subelement obtains that guarantees, calculates the power bias of UE.

13, power configuration device as claimed in claim 10 is characterized in that, described first module comprises:

The second parameter acquiring subelement is used to obtain the desired Signal Interference and Noise Ratio that reaches of power configuration device, interference noise IN value and cell-level maximum transmission power;

The 3rd computation subunit is used for the desired Signal Interference and Noise Ratio that reaches of power configuration device, interference noise IN value and the cell-level maximum transmission power that obtain according to the described second parameter acquiring subelement, calculates described cell-level expectation power.

14, power configuration device as claimed in claim 13 is characterized in that, described first module also comprises:

Judgment sub-unit, whether the difference that is used for regularly judging the interference noise IN value of current network and IN fiducial value exceeds is preset thresholding;

Upgrade subelement, be used for when the judged result of described judgment sub-unit when being, trigger described second parameter acquiring subelement and described the 3rd computation subunit, recomputate cell-level according to current I N value and expect power.

15, a kind of power configuration system is characterized in that, comprise as each described power configuration device of claim 10 to 14, and the user equipment (UE) of communicating by letter with described power configuration device.

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