CN103037491B - Poewr control method, base station and device - Google Patents

Abstract

The embodiment of the invention discloses a kind of Poewr control method, base station and device, relate to communication technical field, described method comprises: receive the power control information that base station issues, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement; The uplink transmission power of random access guiding, Uplink Shared Channel, ascending control channel or Sounding Reference Signal is calculated according to described power control information.The present invention is applicable to cooperative multicast system.

Description

Poewr control method, base station and device

Technical field

The present invention relates to communication technical field, particularly a kind of Poewr control method, base station and device.

Background technology

At 3GPP (3rd Generration Partnership Project, third generation partner program) RAN1 (Radio Access Network, wireless access network) in the 63rd meeting, define four kinds of CoMP (Coordinated Multi-Point, cooperative multipoint transmission) scene, wherein the 4th kind of scene is in a macro station (Macro Site) region, macro station and RRH (Radio Remote Head, Remote Radio Unit) transfer point all share same cell ID, this framework is also referred to as DAS (Distributed AntennaSystem, distributing antenna system).

In DAS system; in order to make different UEs (User Equipment; subscriber equipment) arrive eNB (evolvedNode B; base station) time received power be roughly in phase same level; avoid the interference between the user that causes due to near-far interference, usually can adopt uplink power control to UE.At LTE (Long Term Evolution, Long Term Evolution) in R-10 standard, PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel), PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) and SRS (Sounding Reference Signal, detection reference signal) PL (the Path Loss that estimated by UE side of transmitted power, path loss) decide, wherein, described PL specifically adopts following formulae discovery:

PL＝Reference Signal Power-RSRP；

Wherein, Reference Signal Power is the reference signal power of base station definition, and UE is got by the high-level signaling of cell-specific; RSRP is the superposition of the measuring reference signals energy from each RRH that UE receives, and is shown below:

$\mathrm{RSRP}=10{\log }_{10}\left(\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{10}^{\frac{(P_i-{\mathrm{PL}}_i)}{10}}\right)$

Can obtain:

$\mathrm{PL}=10{\log }_{10}\left(\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{P}_i\right)-10{\log }_{10}\left(\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{10}^{\frac{(P_i-{\mathrm{PL}}_i)}{10}}\right)=10{\log }_{10}\left(\frac{\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{P}_i}{\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{10}^{\frac{(P_i-{\mathrm{PL}}_i)}{10}}}\right)$

Wherein, P _ifor the transmitted power of each RRH, PL _ifor each RRH is to the path loss of receiving terminal.

Realizing in process of the present invention, inventor finds that in prior art, at least there are the following problems: because received power is superpose from the signal energy of different RRH, therefore utilize the path loss of above-mentioned formulae discovery to be the Nonlinear Superposition of all RRH to the path loss of terminal.And the uplink receiving RRH of reality not all RRH, but the set of one of them RRH or multiple RRH.Now actual path loss does not mate with the path loss that UE measurement obtains, and cause the calculating of uplink transmission power inaccurate, actual uplink transmitting power is too high, causes the signal strong jamming between UE.

Summary of the invention

Embodiments of the invention provide a kind of Poewr control method, base station and device, more reasonably can adjust uplink transmission power, avoid the signal disturbing between the UE that causes because transmitting power is too high.

The technical scheme that the embodiment of the present invention adopts is:

A kind of Poewr control method, comprising:

Receive the power control information that base station issues, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

The uplink transmission power of random access guiding, Uplink Shared Channel, ascending control channel or Sounding Reference Signal is calculated according to described power control information.

A kind of Poewr control method, comprising:

To the power control information that UE issues, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

Receive the upstream message that UE uploads according to the uplink transmission power that described power control information calculates.

A kind of output control device, comprising:

Receiver module, for receiving the power control information that base station issues, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

Computing module, for calculating the uplink transmission power of random access guiding, Uplink Shared Channel, ascending control channel or Sounding Reference Signal according to described power control information.

A kind of base station, comprising:

Sending module, for the power control information issued to UE, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

Message reception module, for receiving the upstream message that UE uploads according to the uplink transmission power that described power control information calculates.

The Poewr control method that the embodiment of the present invention provides, base station and device, user equipment (UE) receives the power control information that base station issues, and described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement; Uplink transmission power is calculated according to described power control information.Compared with prior art, the embodiment of the present invention more reasonably can adjust uplink transmission power, avoids the signal disturbing between the UE that causes because transmitting power is too high.

Accompanying drawing explanation

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

The method flow diagram that Fig. 1 provides for the embodiment of the present invention one;

The method flow diagram that Fig. 2 provides for the embodiment of the present invention two;

The method flow diagram that Fig. 3 provides for the embodiment of the present invention three;

The method flow diagram that Fig. 4 provides for the embodiment of the present invention four;

The method flow diagram that Fig. 5 provides for the embodiment of the present invention five;

The apparatus structure schematic diagram that Fig. 6, Fig. 7 provide for the embodiment of the present invention six;

The architecture of base station schematic diagram that Fig. 8 provides for the embodiment of the present invention seven.

Embodiment

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

For making the advantage of technical solution of the present invention clearly, below in conjunction with drawings and Examples, the present invention is elaborated.

Embodiment one

The present embodiment provides a kind of Poewr control method, and as shown in Figure 1, described method comprises:

101, UE receives the power control information that base station issues, and described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement.

102, the uplink transmission power of random access guiding, Uplink Shared Channel, ascending control channel or Sounding Reference Signal is calculated according to described power control information.

The Poewr control method that the embodiment of the present invention provides, UE receives the power control information that base station issues, and described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement; According to described power adjustment calculate random access guiding, Uplink Shared Channel, ascending control channel or Sounding Reference Signal uplink transmission power.Compared with prior art, the embodiment of the present invention more reasonably can adjust uplink transmission power, avoids the signal disturbing between the UE that causes because transmitting power is too high.

Embodiment two

The present embodiment provides a kind of Poewr control method, and as shown in Figure 2, described method comprises:

201, the power control information that issues to UE of base station, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

202, the upstream message that UE uploads according to the uplink transmission power that described power control information calculates is received.

The Poewr control method that the embodiment of the present invention provides, the power control information that base station issues to UE, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement; Receive the upstream message that UE uploads according to the uplink transmission power that described power control information calculates.Compared with prior art, the embodiment of the present invention more reasonably can adjust uplink transmission power, avoids the signal disturbing between the UE that causes because transmitting power is too high.

Embodiment three

The present embodiment provides a kind of Poewr control method, and as shown in Figure 2, described method comprises:

301, UE receives the power adjustment that base station issues.

Described power adjustment is base station by broadcast announcement, such as can be notified by system message, or wherein at least one carries out indicating by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data instruction, redundancy versions, power control command word, descending Allotment Serial Number;

Described power adjustment can be applied to random access guiding.

Further, described power adjustment is that community is specific or UE is specific.

Wherein, described target received power is that actual target received power deducts a fixed value

Wherein, the random access guiding of competition is different with the power control mechanism of non-competing random access guiding, comprising:

When ascending power computing formula is identical, the Notification Method of power adjustment is different, concrete, the random access guiding of competition and the uplink transmission power of non-competing random access guiding all adopt and calculate first object received power, path loss and power adjustment sum, and make comparisons with subscriber equipment maximum power, get the method for smaller value, the power adjustment of the random access guiding of competition is by broadcast announcement, and the power adjustment of non-competing random access guiding is notified by descending control signaling;

Power adjustment is respectively that community is specific or UE is specific, concrete, the random access guiding of competition and the uplink transmission power of non-competing random access guiding all adopt and calculate first object received power, path loss and power adjustment sum, and make comparisons with subscriber equipment maximum power, get the method for smaller value, the power adjustment of the random access guiding of competition is that community is specific, and the power adjustment of non-competing random access guiding is that UE is specific;

Ascending power computing formula is not identical, concrete, the uplink transmission power of the random access guiding of competition adopts and calculates first object received power, path loss and power adjustment sum, and make comparisons with subscriber equipment maximum power, get the method for smaller value, the uplink transmission power of non-competing random access guiding adopts the path loss sum calculating first object received power, measure according to pilot configuration information, and makes comparisons with subscriber equipment maximum power, gets the method for smaller value.

302, the uplink transmission power of random access guiding is calculated according to described power adjustment.

Concrete, the uplink transmission power of described calculating random access guiding comprises:

P _pRACH=min{P _{cMAX, c}(i), P _{o_PRE}+ PL _c+ Δ }; Unit is dBm,

Wherein, P _{cMAX, c (i)}for the maximum transmission power of UE, P _{o_PRE}for first object received power, deduct a fixed value by the target received power of reality and obtain, notified to be handed down to UE by base station.

PL _cfor path loss, its computational methods are:

PL _c＝referenceSignalPower-higher layer filtered RSRP

${\mathrm{PL}}_C=10{\log }_{10}\left(\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{P}_i\right)-10{\log }_{10}\left(\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{10}_6^{\frac{(P_i-{\mathrm{PL}}_i)}{10}}\right)=10{\log }_{10}\left(\frac{\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{P}_i}{\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{10}^{\frac{(P_i-{\mathrm{PL}}_i)}{10}}}\right)$

Wherein, P _ifor the transmitted power of each RRH, PL _ifor each RRH is to the path loss of receiving terminal.

Δ is power adjustment, and its scope can be [-8 ,-6 ,-4 ,-2], and by the signaling of 2 bits to UE, further, Δ can also be the predefined value of UE, without the need to being obtained by base station notice.

The Poewr control method that the embodiment of the present invention provides, UE receives the power adjustment that base station issues; The uplink transmission power of random access guiding is calculated according to described power adjustment.Compared with prior art, the embodiment of the present invention more reasonably can adjust uplink transmission power, avoids the signal disturbing between the UE that causes because transmitting power is too high.

Embodiment four

The present embodiment provides a kind of Poewr control method, and as shown in Figure 4, described method comprises:

401, UE receives the pilot configuration information for carrying out path loss measurement that base station issues.

Wherein, the described pilot configuration information for carrying out path loss measurement is base station by broadcast announcement, or wherein at least one carries out indicating by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data instruction, redundancy versions, power control command word, descending Allotment Serial Number.

Concrete, comprise when described pilot configuration information issues:

Base station only issues a pilot configuration information, and now described pilot configuration information comprises power information and the pilot frequency design of pilot tone;

Or base station periodically issues pilot configuration information, now described pilot configuration information comprises the power information of pilot tone, pilot frequency design and pilot period.

Wherein, described pilot configuration information can be applied to random access guiding, and described pilot configuration information can be channel state information reference signals (CSI-RS).

Poewr control method in conjunction with the embodiments described in one, the random access guiding of competition is different with the power control mechanism of non-competing random access guiding, comprising:

When ascending power computing formula is identical, the Notification Method of power adjustment is different, concrete, the random access guiding of competition and the uplink transmission power of non-competing random access guiding all adopt and calculate first object received power, path loss and power adjustment sum, and make comparisons with subscriber equipment maximum power, get the method for smaller value, the power adjustment of the random access guiding of competition is by broadcast announcement, and the power adjustment of non-competing random access guiding is notified by descending control signaling;

Power adjustment is respectively that community is specific or UE is specific, concrete, the random access guiding of competition and the uplink transmission power of non-competing random access guiding all adopt and calculate first object received power, path loss and power adjustment sum, and make comparisons with subscriber equipment maximum power, get the method for smaller value, the power adjustment of the random access guiding of competition is that community is specific, and the power adjustment of non-competing random access guiding is that UE is specific;

Ascending power computing formula is not identical, concrete, the uplink transmission power of the random access guiding of competition adopts and calculates first object received power, path loss and power adjustment sum, and make comparisons with subscriber equipment maximum power, get the method for smaller value, the uplink transmission power of non-competing random access guiding adopts the path loss sum calculating first object received power, measure according to pilot configuration information, and makes comparisons with subscriber equipment maximum power, gets the method for smaller value.

402, the uplink transmission power of random access guiding is calculated according to described CSI-RS pilot configuration information.

Uplink transmission power is by first object received power P _{o_PRE}with path loss PL _cdetermine, wherein, P _{o_PRE}notified to be handed down to UE, path loss PL by base station _ccomputational methods be:

PL _c=f (Pd1, Pd2, RSRP1, RSRP2), wherein Pd is power parameter,

The power of the absolute power of Pd=CSI-RS or the power-CRS of Pd=CSI-RS, suppose that the CSI-RS port configured is CSI-RS1, CSI-RS2, then corresponding power information is Pd1, Pd2; The computational methods of corresponding RSRP1 and RSRP2 are as follows:

$\mathrm{RSRP}=10{\log }_{10}\left(\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{10}^{\frac{(P_i-{\mathrm{PL}}_i)}{10}}\right)$

, wherein f function can be as follows:

PL1＝reference signal power-RSRP1+Pd1，

PL2＝reference signal power-RSRP2+Pd2，

Reference signal power in above formula is the transmitting power of CRS,

Then, ${\mathrm{PL}}_C=-10\log \underset{i=0}{\overset{i\∈\mathrm{RPset}}{\mathrm{\Σ}}}{10}^{-\frac{{\mathrm{PL}}_i}{10}}$

Wherein, RPset is for receiving set, PL _ifor each RRH is to the path loss of receiving terminal.

Two the port CSI-RS ports supposed above are CSI-RS1 and CSI-RS2, then the uplink transmission power of random access guiding is determined by formula below:

P _pRACH=min{P _{cMAX, c}(i), P _{o_PRE}+ PL _c; Unit is dBm,

Wherein, P _{cMAX, c (i)}for the maximum transmission power upper limit of UE, P _{o_PRE}for first object received power, deduct a fixed value by the target received power of reality and obtain, notified to be handed down to UE by base station.PL _cfor calculate above PL _c, this path loss is that the CSI-RS configuration information received based on the last time carries out measuring.

The Poewr control method that the embodiment of the present invention provides, UE receives the CSI-RS pilot configuration information that base station issues; The uplink transmission power of random access guiding is calculated according to described CSI-RS pilot configuration information.Compared with prior art, the embodiment of the present invention more reasonably can adjust uplink transmission power, avoids the signal disturbing between the UE that causes because transmitting power is too high.

Embodiment five

The present embodiment provides a kind of Poewr control method, and as shown in Figure 4, described method comprises:

501, UE receives the power adjustment that issues of base station and/or the pilot configuration information for carrying out path loss measurement.

Described power adjustment and/or the pilot configuration information for carrying out path loss measurement are base station by broadcast announcement, or notify in accidental access response for base station, or by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data instruction, redundancy versions, power control command word or descending Allotment Serial Number, wherein at least one carries out indicating in base station, or issued by high-level signaling for base station.

Described power adjustment and described pilot configuration information can be applied to the Uplink Shared Channel after Stochastic accessing, ascending control channel, Sounding Reference Signal.

Wherein, described power adjustment is that community is specific or UE is specific.

Wherein, comprise when described pilot configuration information issues:

Base station only issues a pilot configuration information, and now described pilot configuration information comprises power information and the pilot frequency design of pilot tone;

Or base station periodically issues pilot configuration information, now described pilot configuration information comprises the power information of pilot tone, pilot frequency design and pilot period.

Wherein, described power control information is being specially of notifying in accidental access response of base station:

Channel state information request in accidental access response is permitted and emissive power control command combined coding indicate.

Further, for the shared channel of accidental access response scheduling, when the pilot tone for measuring can obtain, target received power comprises the power adjustment of first object received power and random access information three;

When the pilot tone for measuring can not obtain, target received power comprises first object received power and power adjustment or power closed loop adjustment amount and comprises described power adjustment;

For the shared channel of dynamic dispatching or the shared channel of half random schedule, target received power comprises the second target received power and power adjustment or power closed loop adjustment amount and comprises described power adjustment.

Wherein, in accidental access response, send the power adjustment of at least one user and/or the pilot configuration information for carrying out path loss measurement.

502, Uplink Shared Channel is calculated, ascending control channel, the uplink transmission power of Sounding Reference Signal according to described power adjustment and/or pilot configuration information.

Concrete, described computational methods comprise:

When the pilot tone for measuring path loss can obtain, random access guiding, path loss in the uplink transmission power computing formula of shared channel, ascending control channel or Sounding Reference Signal is the path loss of the pilot measurement of above-mentioned configuration, and this formula comprises above-mentioned power adjustment, or this power adjustment is 0, the value of the function that the path loss that uplink transmission power is first object received power, foundation pilot configuration information is measured is formed as parameter and subscriber equipment maximum power smaller value therebetween;

When the pilot tone for measuring path loss can not obtain, random access guiding, the uplink transmission power of shared channel, ascending control channel or Sounding Reference Signal comprises power adjustment, the value of the function that uplink transmission power is first object received power or the second target received power, power adjustment is formed and subscriber equipment maximum power smaller value therebetween.

For Uplink Shared Channel:

Uplink transmission power is by target received power P _{o_PRE}with path loss PL _cdetermine, path loss PL _ccomputational methods be:

PL _c=f (Pd1, Pd2, RSRP1, RSRP2), wherein Pd is power parameter,

The power of the absolute power of Pd=CSI-RS or the power-CRS of Pd=CSI-RS, suppose that the CSI-RS port configured is CSI-RS1, CSI-RS2, then corresponding power information is Pd1, Pd2; The computational methods of corresponding RSRP1 and RSRP2 are as follows:

$\mathrm{RSRP}=10{\log }_{10}\left(\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{10}^{\frac{(P_i-{\mathrm{PL}}_i)}{10}}\right)$

, wherein f function can be as follows:

PL1＝reference signal power-RSRP1+Pd1，

PL2＝reference signal power-RSRP2+Pd2，

Reference signal power in above formula is the transmitting power of CRS,

Then, ${\mathrm{PL}}_C=-10\log \underset{i=0}{\overset{i\∈\mathrm{RPset}}{\mathrm{\Σ}}}{10}^{-\frac{{\mathrm{PL}}_i}{10}},$

Wherein, RPset is for receiving set, PL _ifor each RRH is to the path loss of receiving terminal.

Two the port CSI-RS ports supposed above are CSI-RS1 and CSI-RS2, then the uplink transmission power of the PUSCH of accidental access response mandate scheduling is determined by formula below:

$P_{\mathrm{PUSCH},c}\left(i\right)=\min \left\{\begin{array}{c}{P}_{\mathrm{CMAX},c}\left(i\right),\\ 10{\log }_{10}\left(M_{\mathrm{PUSCH},c}\left(i\right)\right)+P_{O\_\mathrm{PUSCH},c}\left(j\right)+{\mathrm{\α}}_c\left(j\right)\·{\mathrm{PL}}_c+{\mathrm{\Δ}}_{\mathrm{TF},c}\left(i\right)+f_c\left(i\right)\end{array}\right\}$

, wherein, P _{cMAX, c}i maximum transmission power that () is UE, the power grade with UE is relevant;

M _{pUSCH, c}i () is to the size of the band width in physical of UE distribution;

P _{o_PUSCH, c}j () comprises P _{o_NOMINAL_PUSCH, c}(j) and P _{o_UE_PUSCH, c}(j) two parameters, wherein, P _{o_NOMINAL_PUSCH, c}j () is the power reference value according to cell size setting, notified the UE of whole community, P by broadcast _{o_UE_PUSCH, c}(j) specific fiducial value of UE for determining according to type and the position of UE, notify each UE by radio resource control signaling, the value of j is { 0,1,2};

α _cj () is Partial Power compensating factor, span is { 0,0.4,0.5,0.6,0.7,0.8,0.9,1};

PL _cfor path loss; Δ _{tF, c}i () is transmission mode power adjustment; Function f _ci () is for carrying out closed loop adjustment.

Wherein, j can value 0,1,2, and the difference according to UE uplink service is classified, when UE transmit first in the resource that Uplink Shared Channel has distributed pass or retransmit (as semi-persistent scheduling) time, j=0; When the position that UE transmits first or retransmits on Uplink Shared Channel is designated as 0 by the descending control signaling control information form (format) in present sub-frame, j=1; When UE sends random response information on Uplink Shared Channel, j=2.

Target received power P _{o_PUSCH, c}(j)=P _{o_NOMINAL_PUSCH, c}(j)+P _{o_UE_PUSCH, c}(j), as j=2, P _{o_UE_PUSCH, c}(j)=0.

As j=2, if accidental access response can receive the CSI-RS pilot tone of configuration before permitting the PUSCH transmission of scheduling,

Then P _{o_PUSCH, c}(2)=P _{o_NOMINAL_PUSCH, c}(2)=P _{o_PRE}+ Δ _{pREAMBLE_Msg3}, wherein, Δ _{pREAMBLE_Msg3}target received power adjustment amount, P _{o_PRE}for first object received power, the target received power for reality deducts a fixed value, α _c(2) be 1, PL _cfor the path loss measured based on the CSI-RS pilot configuration information of above-mentioned notice, Δ _{tF, c}(i) and f _ci () is 0;

If cannot measure the CSI-RS pilot tone of configuration permit the PUSCH transmission of scheduling at accidental access response before,

Then P _{o_NOMINAL_PUSCH, c}(2)=P _{o_PRE}+ Δ _{pREAMBLE_Msg3}+ Δ, f _c(0)=Δ P _rampup+ δ _msg2; Or

P _{O_NOMINAL_PUSCH，c}(2)＝P _{O_PRE}+Δ _{PREAMBLE_Msg3}，f _c(0)＝ΔP _rampup+δ _msg2+Δ。Wherein, P _{o_PRE}for first object received power, the target received power for reality deducts a fixed value, Δ P _rampupfor power and variable, Δ is the transmitting power adjustment amount of the random access guiding of notice in embodiment one, δ _msg2for the transmitting power adjustment amount notified in accidental access response, its value can be indicated by the channel state information request CSI request in accidental access response mandate and emissive power control command TPC command combined coding:

Such as, when CSI request is 0, TPC command is

TPC Command	Value (in dB)
		0	-6
1	-4
		2	-2
3	0
		4	2
5	4
		6	6
7	8

When CSI request is 1, TPC command is

TPC Command	Value (in dB)
		0	-16
1	-14
		2	-12
3	-10
		4	-8
5	reserved
		6	reserved
7	reserved

According to method above, as j=2, f _c(0) power adjustment in formula can include but not limited to following form:

By Δ P _rampup+ Δ is determined;

By Δ P _rampup+ δ _msg2determine;

By Δ P _rampup+ δ _msg2+ Δ is determined.

As j=0 or j=1, if PUSCH cannot measure the CSI-RS pilot tone of configuration before sending, then P _{o_PUSCH, c}(j)=P _{o_NOMINAL_PUSCH, c}(j)+P _{o_UE_PUSCH, c}(j)+Δ, f _c(0)=0; Or P _{o_PUSCH, c}(j)=P _{o_NOMINAL_PUSCH, c}(j)+P _{o_UE_PUSCH, c}(j), f _c(0)=Δ, wherein, P _{o_PUSCH, c}j () is the second target received power.

For ascending control channel:

Uplink transmission power is by target received power P _{o_PUCCH}with path loss PL _cdetermine, path loss PL _ccomputational methods be:

PL _c=f (Pd1, Pd2, RSRP1, RSRP2), wherein Pd is power parameter,

The power of the absolute power of Pd=CSI-RS or the power-CRS of Pd=CSI-RS, suppose that the CSI-RS port configured is CSI-RS1, CSI-RS 2, then corresponding power information is Pd1, Pd2; The computational methods of corresponding RSRP1 and RSRP2 are as follows:

$\mathrm{RSRP}=10{\log }_{10}\left(\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{10}^{\frac{(P_i-{\mathrm{PL}}_i)}{10}}\right)$

, wherein f function can be as follows:

PL1＝reference signal power-RSRP1+Pd1，

PL2＝reference signal power-RSRP2+Pd2，

Reference signal power in above formula is the transmitting power of CRS,

Then, ${\mathrm{PL}}_C=-10\log \underset{i=0}{\overset{i\∈\mathrm{RPset}}{\mathrm{\Σ}}}{10}^{-\frac{{\mathrm{PL}}_i}{10}}$

Wherein, RPset is for receiving set, PL _ifor each RRH is to the path loss of receiving terminal.Two the port CSI-RS ports supposed above are CSI-RS1 and CSI-RS2, then the uplink transmission power of the PUCCH of accidental access response mandate scheduling is determined by formula below:

$P_{\mathrm{PUCCH}}\left(i\right)=\min \left\{\begin{array}{c}{P}_{\mathrm{CMAX},c}\left(i\right),\\ P_{0\_\mathrm{PUCCH}}+{\mathrm{PL}}_c+h(n_{\mathrm{CQI}},n_{\mathrm{HARQ}},n_{\mathrm{SR}})+{\mathrm{\Δ}}_{F\_\mathrm{PUCCH}}\left(F\right)+{\mathrm{\Δ}}_{\mathrm{TxD}}\left(F^{\′}\right)+g\left(i\right)\end{array}\right\},$

Wherein, P _{cMAX, c}i maximum transmission power that () is UE, the power grade with UE is relevant;

P _{o_PUCCH}for target received power; PL _cfor path loss;

H (n _cQI, n _hARQ, n _sR) be power offset;

Δ _{f_PUCCH}and Δ (F) _txD(F ') is the power offset of often kind of transformat relative to transmission mode;

Function g (i) is for carrying out closed loop adjustment.

For Sounding Reference Signal:

Uplink transmission power is by target received power P _{o_PUSCH, c}(j) and path loss PL _cdetermine, path loss PL _ccomputational methods be:

PL _c=f (Pd1, Pd2, RSRP1, RSRP2), wherein Pd is power parameter,

The power of the absolute power of Pd=CSI-RS or the power-CRS of Pd=CSI-RS, suppose that the CSI-RS port configured is CSI-RS1, CSI-RS2, then corresponding power information is Pd1, Pd2; The computational methods of corresponding RSRP1 and RSRP2 are as follows:

$\mathrm{RSRP}=10{\log }_{10}\left(\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}{10}^{\frac{(P_i-{\mathrm{PL}}_i)}{10}}\right)$

, wherein f function can be as follows:

PL1＝reference signal power-RSRP1+Pd1，

PL2＝reference signal power-RSRP2+Pd2，

Reference signal power in above formula is the transmitting power of CRS,

Then, ${\mathrm{PL}}_C=-10\log \underset{i=0}{\overset{i\∈\mathrm{RPset}}{\mathrm{\Σ}}}{10}^{-\frac{{\mathrm{PL}}_i}{10}},$

Wherein, RPset is for receiving set, PL _ifor each RRH is to the path loss of receiving terminal.

Two the port CSI-RS ports supposed above are CSI-RS1 and CSI-RS2, then the uplink transmission power of the PUSCH of accidental access response mandate scheduling is determined by formula below:

P _SRS，c(i)＝min{P _CMAX，c(i)，P _{SRS_OFFSET，c}(m)+10log ₁₀(M _SRS，c)+P _{O_PUSCH，c}(j)+α _c(j)·PL _c+f _c(i)}

Wherein, P _{cMAX, c}i maximum transmission power that () is UE, the power grade with UE is relevant;

P _{sRS_OFFSET, c}m () is the specific power offset of UE;

M _sRScfor the bandwidth taken in the transmission block of subframe;

P _{o_PUSCHc}j () comprises P _{o_NOMINAL_PUSCH, c}(j) and P _{o_UE_PUSCH, c}(j) two parameters, wherein, P _{o_NOMINAL_PUSCH, c}j () is the power reference value according to cell size setting, notified the UE of whole community, P by broadcast _{o_UE_PUSCH, c}(j) specific fiducial value of UE for determining according to type and the position of UE, notify each UE by radio resource control signaling, the value of j is { 0,1,2};

α _cj () is Partial Power compensating factor, span is { 0,0.4,0.5,0.6,0.7,0.8,0.9,1};

PL _cfor path loss;

Function f _ci () is for carrying out closed loop adjustment.

Wherein, j can value 0,1,2, and the difference according to UE uplink service is classified, when UE transmit first in the resource that Uplink Shared Channel has distributed pass or retransmit (as semi-persistent scheduling) time, j=0; When the position that UE transmits first or retransmits on Uplink Shared Channel is designated as 0 by the down control channel control information form (format) in present sub-frame, j=1; When UE sends random response information on Uplink Shared Channel, j=2.

Target received power P _{o_PUSCH, c}(j)=P _{o_NOMINAL_PUSCH, c}(j)+P _{o_UE_PUSCH, c}(j), as j=2, P _{o_UE_PUSCH, c}(j)=0.

As j=2, if accidental access response can receive the CSI-RS pilot tone of configuration before permitting the PUSCH transmission of scheduling,

Then P _{o_PUSCH, c}(2)=P _{o_NOMINAL_PUSCH, c}(2)=P _{o_PRE}+ Δ _{pREAMBLE_Msg3}, wherein, Δ _{pREAMBLE_Msg3}target received power adjustment amount, P _{o_PRE}for first object received power, the target received power for reality deducts a fixed value, α _c(2) be 1, PL _cfor the path loss measured based on the CSI-RS pilot configuration information of above-mentioned notice, Δ _{tF, c}(i) and f _ci () is 0;

If cannot measure the CSI-RS pilot tone of configuration permit the PUSCH transmission of scheduling at accidental access response before,

Then P _{o_NOMINAL_PUSCH, c}(2)=P _{o_PRE}+ Δ _{pREAMBLE_Msg3}+ Δ, f _c(0)=Δ P _rampup+ δ _msg2; Or

P _{O_NOMINAL_PUSCH，c}(2)＝P _{O_PRE}+Δ _{PREAMBLE_Msg3}，f _c(0)＝ΔP _rampup+δ _msg2+Δ。Wherein, P _{o_PRE}for first object received power, the target received power for reality deducts a fixed value, Δ P _rampupfor power and variable, Δ is the transmitting power adjustment amount of the random access guiding of notice in embodiment one, δ _msg2for the transmitting power adjustment amount notified in accidental access response, its value can be indicated by the channel state information request CSI request in accidental access response mandate and emissive power control command TPC command combined coding:

Such as, when CSI request is 0, TPC command is

TPC Command	Value (in dB)
		0	-6
1	-4
		2	-2
3	0
		4	2
5	4
		6	6
7	8

When CSI request is 1, TPC command is

TPC Command	Value (in dB)
		0	-16
1	-14
		2	-12
3	-10
		4	-8
5	reserved
		6	reserved
7	reserved

According to method above, as j=2, f _c(0) power adjustment in formula can include but not limited to following form:

By Δ P _ampup+ Δ is determined;

By Δ P _rampup+ δ _msg2determine;

By Δ P _rampup+ δ _msg2+ Δ is determined.

As j=0 or j=1, if PUSCH cannot measure the CSI-RS pilot tone of configuration before sending, then P _{o_PUSCH, c}(j)=P _{o_NOMINAL_PUSCH, c}(j)+P _{o_UE_PUSCH, c}(j)+Δ, f _c(0)=0;

Or P _{o_PUSCH, c}(j)=P _{o_NOMINAL_PUSCH, c}(j)+P _{o_UE_PUSCH, c}(j), f _c(0)=Δ, wherein, P _{o_PUSCH, c}j () is the second target received power.

The Poewr control method that the embodiment of the present invention provides, the power adjustment that UE reception UE reception base station issues and/or pilot configuration information.; The uplink transmission power of Uplink Shared Channel is calculated according to described power adjustment and/or pilot configuration information.Compared with prior art, the embodiment of the present invention more reasonably can adjust uplink transmission power, avoids the signal disturbing between the UE that causes because transmitting power is too high.

Embodiment six

The present embodiment provides a kind of output control device, and as shown in Figure 6, described device comprises:

Receiver module 61, for receiving the power control information that base station issues, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

Computing module 62, for calculating uplink transmission power according to described power control information;

Further, as shown in Figure 7, described receiver module 51 can comprise:

First receiving element 611, for receiving the power adjustment that base station issues, described power adjustment is base station by broadcast announcement, or wherein at least one carries out indicating by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data instruction, redundancy versions, power control command word or descending Allotment Serial Number;

Described computing module 62 can comprise:

First computing unit 621, for calculating first object received power, path loss and power adjustment sum, and makes comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of random access guiding.

Further, as shown in Figure 7, described receiver module 51 can comprise:

Second receiving element 612, for receiving the pilot configuration information for carrying out path loss measurement that base station issues, the described pilot configuration information for carrying out path loss measurement is base station by broadcast announcement, or wherein at least one carries out indicating by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data instruction, redundancy versions, power control command word or descending Allotment Serial Number;

Described computing module 62 can comprise:

Second computing unit 622, for calculating first object received power and the path loss sum measured according to pilot configuration information, and makes comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of random access guiding.

Further, as shown in Figure 7, described receiver module 61 can comprise:

3rd receives single 613 yuan, for receiving power adjustment that base station issues and/or the pilot configuration information for carrying out path loss measurement, described power adjustment and/or the pilot configuration information for carrying out path loss measurement are base station by broadcast announcement, or notify in accidental access response for base station, or base station is by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data indicates, redundancy versions, wherein at least one carries out indicating for power control command word or descending Allotment Serial Number, or issued by high-level signaling for base station,

Described computing module 62 can comprise:

3rd computing unit 623, for calculating the value comprising the function that first object received power or the second target received power and power adjustment are formed as parameter, and make comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of Uplink Shared Channel, ascending control channel or Sounding Reference Signal;

The value of the function that the path loss that calculating comprises first object received power and the measurement of foundation pilot configuration information is formed as parameter, and make comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of Uplink Shared Channel, ascending control channel or Sounding Reference Signal.

The output control device that the embodiment of the present invention provides, receiver module 61 receives the power control information that base station issues, and described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement; Computing module 62 calculates uplink transmission power according to described power adjustment.Compared with prior art, the embodiment of the present invention more reasonably can adjust uplink transmission power, avoids the signal disturbing between the UE that causes because transmitting power is too high.

Embodiment seven

The present embodiment provides a kind of base station, and as shown in Figure 8, described base station comprises:

Sending module 71, for the power control information issued to UE, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

Message reception module 72, for receiving the upstream message that UE uploads according to the uplink transmission power that described power control information calculates.

The base station that the embodiment of the present invention provides, the power control information that sending module 71 issues to UE, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement; Message reception module 72 receives the upstream message that UE uploads according to the uplink transmission power that described power control information calculates.Compared with prior art, the embodiment of the present invention more reasonably can adjust uplink transmission power, avoids the signal disturbing between the UE that causes because transmitting power is too high.

The output control device that the embodiment of the present invention provides can realize the above-mentioned embodiment of the method provided, and concrete function realizes the explanation referred in embodiment of the method, does not repeat them here.The Poewr control method that the embodiment of the present invention provides, base station and device go for cooperative multicast system, but are not limited only to this.

One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims (18)

1. a Poewr control method, is characterized in that, comprising:

Receive the power control information that base station issues, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

The uplink transmission power of random access guiding, Uplink Shared Channel, ascending control channel or Sounding Reference Signal is calculated according to described power control information;

When the pilot tone for measuring path loss can obtain, random access guiding, shared channel, path loss in the uplink transmission power computing formula of ascending control channel or Sounding Reference Signal is the path loss of the pilot measurement of above-mentioned configuration, and this formula comprises above-mentioned power adjustment, or this power adjustment is 0, uplink transmission power is first object received power, the value of the function that the path loss measured according to pilot configuration information is formed as parameter and subscriber equipment maximum power smaller value therebetween, described first object received power is that actual target received power deducts a fixed value,

When the pilot tone for measuring path loss can not obtain, random access guiding, the uplink transmission power of shared channel, ascending control channel or Sounding Reference Signal comprises power adjustment, the value of the function that uplink transmission power is first object received power or the second target received power, power adjustment is formed and subscriber equipment maximum power smaller value therebetween, described second target received power is the power section of the target received power in the shared channel of dynamic dispatching or the shared channel of half random schedule.

2. Poewr control method according to claim 1, is characterized in that, the power control information that described reception base station issues is specially:

Receive the power adjustment that base station issues, described power adjustment is base station by broadcast announcement, or wherein at least one carries out indicating by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data instruction, redundancy versions, power control command word or descending Allotment Serial Number;

Then describedly calculate uplink transmission power according to described power control information and be specially:

Calculate first object received power, path loss and power adjustment sum, and make comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of random access guiding.

3. Poewr control method according to claim 2, is characterized in that, described power adjustment is that community is specific or UE is specific.

4. Poewr control method according to claim 1, is characterized in that, the power control information that described reception base station issues is specially:

Receive the pilot configuration information for carrying out path loss measurement that base station issues, the described pilot configuration information for carrying out path loss measurement is base station by broadcast announcement, or wherein at least one carries out indicating by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data instruction, redundancy versions, power control command word or descending Allotment Serial Number;

Then describedly calculate uplink transmission power according to described power control information and be specially:

Calculate first object received power and the path loss sum measured according to pilot configuration information, and make comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of random access guiding.

5. Poewr control method according to claim 4, is characterized in that, comprises when described pilot configuration information issues:

Base station only issues a pilot configuration information, and now described pilot configuration information comprises power information and the pilot frequency design of pilot tone;

Or base station periodically issues pilot configuration information, now described pilot configuration information comprises the power information of pilot tone, pilot frequency design and pilot period.

6. Poewr control method according to claim 1, is characterized in that, the power control information that described reception base station issues is specially:

The power adjustment that reception base station issues and/or the pilot configuration information for carrying out path loss measurement, described power adjustment and/or the pilot configuration information for carrying out path loss measurement are base station by broadcast announcement, or notify in accidental access response for base station, or base station is by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data indicates, redundancy versions, wherein at least one carries out indicating for power control command word or descending Allotment Serial Number, or issued by high-level signaling for base station,

Then describedly calculate uplink transmission power according to described power control information and be specially:

Calculate the value comprising the function that first object received power or the second target received power and power adjustment are formed as parameter, and make comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of Uplink Shared Channel, ascending control channel or Sounding Reference Signal;

The value of the function that the path loss that calculating comprises first object received power and the measurement of foundation pilot configuration information is formed as parameter, and make comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of Uplink Shared Channel, ascending control channel or Sounding Reference Signal.

7. Poewr control method according to claim 6, is characterized in that, power control information is being specially of notifying in accidental access response of base station:

Channel state information request in accidental access response is permitted and emissive power control command combined coding indicate.

8. Poewr control method according to claim 6, it is characterized in that, for the shared channel of accidental access response scheduling, when the pilot tone for measuring can obtain, target received power comprises the power adjustment of first object received power and random access information three;

When the pilot tone for measuring can not obtain, target received power comprises first object received power and power adjustment or power closed loop adjustment amount and comprises described power adjustment;

For the shared channel of dynamic dispatching or the shared channel of half random schedule, target received power comprises the second target received power and power adjustment or power closed loop adjustment amount and comprises described power adjustment.

9. the Poewr control method according to any one of claim 2,4 or 6, is characterized in that, comprising:

When the pilot tone for measuring path loss can obtain, random access guiding, path loss in the uplink transmission power computing formula of shared channel, ascending control channel or Sounding Reference Signal is the path loss of the pilot measurement of above-mentioned configuration, and this formula comprises above-mentioned power adjustment, or this power adjustment is 0, the value of the function that the path loss that uplink transmission power is first object received power, foundation pilot configuration information is measured is formed as parameter and subscriber equipment maximum power smaller value therebetween;

When the pilot tone for measuring path loss can not obtain, random access guiding, the uplink transmission power of shared channel, ascending control channel or Sounding Reference Signal comprises power adjustment, the value of the function that uplink transmission power is first object received power or the second target received power, power adjustment is formed and subscriber equipment maximum power smaller value therebetween.

10. Poewr control method according to claim 1, is characterized in that, sends the power adjustment of at least one user and/or the pilot configuration information for carrying out path loss measurement in accidental access response.

11. Poewr control methods according to claim 1, is characterized in that, the described pilot configuration information for carrying out path loss measurement can be channel state information reference signals (CSI-RS).

12. Poewr control methods according to any one of claim 1,2 or 4, it is characterized in that, the random access guiding of competition is different with the power control mechanism of non-competing random access guiding, comprising:

When ascending power computing formula is identical, the Notification Method of power adjustment is different, concrete, the random access guiding of competition and the uplink transmission power of non-competing random access guiding all adopt and calculate first object received power, path loss and power adjustment sum, and make comparisons with subscriber equipment maximum power, get the method for smaller value, the power adjustment of the random access guiding of competition is by broadcast announcement, and the power adjustment of non-competing random access guiding is notified by descending control signaling;

Power adjustment is respectively that community is specific or UE is specific, concrete, the random access guiding of competition and the uplink transmission power of non-competing random access guiding all adopt and calculate first object received power, path loss and power adjustment sum, and make comparisons with subscriber equipment maximum power, get the method for smaller value, the power adjustment of the random access guiding of competition is that community is specific, and the power adjustment of non-competing random access guiding is that UE is specific;

Ascending power computing formula is not identical, concrete, the uplink transmission power of the random access guiding of competition adopts and calculates first object received power, path loss and power adjustment sum, and make comparisons with subscriber equipment maximum power, get the method for smaller value, the uplink transmission power of non-competing random access guiding adopts the path loss sum calculating first object received power, measure according to pilot configuration information, and makes comparisons with subscriber equipment maximum power, gets the method for smaller value.

13. 1 kinds of output control devices, is characterized in that, comprising:

Receiver module, for receiving the power control information that base station issues, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

Computing module, for calculating uplink transmission power according to described power control information;

Wherein, when the pilot tone for measuring path loss can obtain, random access guiding, shared channel, path loss in the uplink transmission power computing formula of ascending control channel or Sounding Reference Signal is the path loss of the pilot measurement of above-mentioned configuration, and this formula comprises above-mentioned power adjustment, or this power adjustment is 0, uplink transmission power is first object received power, the value of the function that the path loss measured according to pilot configuration information is formed as parameter and subscriber equipment maximum power smaller value therebetween, described first object received power is that actual target received power deducts a fixed value,

When the pilot tone for measuring path loss can not obtain, random access guiding, the uplink transmission power of shared channel, ascending control channel or Sounding Reference Signal comprises power adjustment, the value of the function that uplink transmission power is first object received power or the second target received power, power adjustment is formed and subscriber equipment maximum power smaller value therebetween, described second target received power is the power section of the target received power in the shared channel of dynamic dispatching or the shared channel of half random schedule.

14. output control devices according to claim 13, is characterized in that, described receiver module comprises:

First receiving element, for receiving the power adjustment that base station issues, described power adjustment is base station by broadcast announcement, or wherein at least one carries out indicating by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data instruction, redundancy versions, power control command word or descending Allotment Serial Number;

Described computing module comprises:

First computing unit, for calculating first object received power, path loss and power adjustment sum, and makes comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of random access guiding.

15. output control devices according to claim 13, is characterized in that, described receiver module comprises:

Second receiving element, for receiving the pilot configuration information for carrying out path loss measurement that base station issues, the described pilot configuration information for carrying out path loss measurement is base station by broadcast announcement, or wherein at least one carries out indicating by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data instruction, redundancy versions, power control command word or descending Allotment Serial Number;

Described computing module comprises:

Second computing unit, for calculating first object received power and the path loss sum measured according to pilot configuration information, and makes comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of random access guiding.

16. output control devices according to claim 13, is characterized in that, described receiver module comprises:

3rd receiving element, for receiving power adjustment that base station issues and/or the pilot configuration information for carrying out path loss measurement, described power adjustment and/or the pilot configuration information for carrying out path loss measurement are base station by broadcast announcement, or notify in accidental access response for base station, or base station is by the resource block assignments instruction in control signal, modulation coding mode, mixed spin system HARQ process number, new data indicates, redundancy versions, wherein at least one carries out indicating for power control command word or descending Allotment Serial Number, or issued by high-level signaling for base station,

Described computing module comprises:

3rd computing unit, for calculating the value comprising the function that first object received power or the second target received power and power adjustment are formed as parameter, and make comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of Uplink Shared Channel, ascending control channel or Sounding Reference Signal;

The value of the function that the path loss that calculating comprises first object received power and the measurement of foundation pilot configuration information is formed as parameter, and make comparisons with subscriber equipment maximum power, get therebetween smaller value as the uplink transmission power of Uplink Shared Channel, ascending control channel or Sounding Reference Signal.

17. 1 kinds of Poewr control methods, is characterized in that, comprising:

To the power control information that UE issues, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

Receive the upstream message that UE uploads according to the uplink transmission power that described power control information calculates;

When the pilot tone for measuring path loss can obtain, random access guiding, shared channel, path loss in the uplink transmission power computing formula of ascending control channel or Sounding Reference Signal is the path loss of the pilot measurement of above-mentioned configuration, and this formula comprises above-mentioned power adjustment, or this power adjustment is 0, uplink transmission power is first object received power, the value of the function that the path loss measured according to pilot configuration information is formed as parameter and subscriber equipment maximum power smaller value therebetween, described first object received power is that actual target received power deducts a fixed value,

When the pilot tone for measuring path loss can not obtain, random access guiding, the uplink transmission power of shared channel, ascending control channel or Sounding Reference Signal comprises power adjustment, the value of the function that uplink transmission power is first object received power or the second target received power, power adjustment is formed and subscriber equipment maximum power smaller value therebetween, described second target received power is the power section of the target received power in the shared channel of dynamic dispatching or the shared channel of half random schedule.

18. 1 kinds of base stations, is characterized in that, comprising:

Sending module, for the power control information issued to UE, described power control information comprises power adjustment and/or the pilot configuration information for carrying out path loss measurement;

Message reception module, for receiving the upstream message that UE uploads according to the uplink transmission power that described power control information calculates;

When the pilot tone for measuring path loss can obtain, random access guiding, shared channel, path loss in the uplink transmission power computing formula of ascending control channel or Sounding Reference Signal is the path loss of the pilot measurement of above-mentioned configuration, and this formula comprises above-mentioned power adjustment, or this power adjustment is 0, uplink transmission power is first object received power, the value of the function that the path loss measured according to pilot configuration information is formed as parameter and subscriber equipment maximum power smaller value therebetween, described first object received power is that actual target received power deducts a fixed value,

When the pilot tone for measuring path loss can not obtain, random access guiding, the uplink transmission power of shared channel, ascending control channel or Sounding Reference Signal comprises power adjustment, the value of the function that uplink transmission power is first object received power or the second target received power, power adjustment is formed and subscriber equipment maximum power smaller value therebetween, described second target received power is the power section of the target received power in the shared channel of dynamic dispatching or the shared channel of half random schedule.