CN104254117B - A kind of Poewr control method and device - Google Patents
A kind of Poewr control method and device Download PDFInfo
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- CN104254117B CN104254117B CN201310259479.6A CN201310259479A CN104254117B CN 104254117 B CN104254117 B CN 104254117B CN 201310259479 A CN201310259479 A CN 201310259479A CN 104254117 B CN104254117 B CN 104254117B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/16—Deriving transmission power values from another channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a kind of Poewr control method and device, for the up-link carrier switching of user equipment (UE), methods described includes：The transmit power on the first up-link carrier is obtained, the interference noise power difference on the first up-link carrier and the second up-link carrier is obtained；Ask poor with the interference noise power difference by the transmit power, the initial transmission power on second up-link carrier is obtained, Power Control is carried out to the power on second up-link carrier when second up-link carrier is switched to from first up-link carrier.The present embodiment is by obtaining transmit power and interference noise power difference on the first up-link carrier, obtain the initial transmission power on the second up-link carrier, just can be configured according to the initial transmission power when UE switches to the second up-link carrier from the first up-link carrier, make UE that power synchronous can be rapidly entered after being switched on the second up-link carrier, be advantageously implemented the balance of load.
Description
Technical field
The present embodiments relate to up-link carrier load balancing techniques, more particularly, to a kind of Poewr control method and dress
Put.
Background technology
Currently, be typically all in radio network technique assume network downlink traffic always greater than upstream traffic, because
This is the more Radio Resources of downstream arrangements relative to upper guild.For example, descending UE is received from the number on net side multiple carrier wave
According to, and it is up then only configure a carrier wave.When UE negligible amounts, interfering between each UE does not show in up transmission process
Write；But when UE numbers are more in network, the uplink interference between UE will be caused to significantly increase.Now in order to overcome mutual doing
Disturb, although UE can send power higher to ensure the Signal to Interference plus Noise Ratio of uplink receiving signal, this obviously can cause to send
Efficiency reduction.
When the more situation of above-mentioned UE numbers is run into, one is likely to be on the corresponding up-link carrier of other descending carriers
The state of low uplink interference, if be switched to the up-link carrier of work at present on the less up-link carrier of uplink interference by UE,
The uplink interference between UE can be reduced, the balance loaded between reaching up-link carrier.Inventor realize it is of the invention during
It was found that, want to carry out up-link carrier switching, the initial transmission power on new up-link carrier how is controlled, i.e., on new up-link carrier
DPCCH（Dedicated Physical Control Channel, Dedicated Physical Control Channel）Initial transmission power, is one
Key issue, and not yet have effective solution in the prior art.
The content of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of Poewr control method and device, to solve up
Initial transmission power on the stylish up-link carrier of the carrier switch problem how to set.
On the one hand, a kind of Poewr control method is the embodiment of the invention provides, the up-link carrier for user equipment (UE) is cut
Change, methods described includes：
The transmit power on the first up-link carrier is obtained, and,
Interference noise power difference is obtained, the interference noise power difference is that the interference on first up-link carrier is made an uproar
The difference of the interference noise power in acoustical power and the second up-link carrier；
Ask poor with the interference noise power difference by the transmit power on first up-link carrier, obtain described the
Initial transmission power on two up-link carriers；
According to the initial transmission power, when second up-link carrier is switched to from first up-link carrier to institute
The power stated on the second up-link carrier carries out Power Control.
Preferably, the transmit power on first up-link carrier includes：
Transmit power on described last time slot of first up-link carrier, or,
The average of the transmit power in described last subframe of first up-link carrier.
Preferably, the acquisition interference noise power difference, including：
Interference noise power on first up-link carrier is obtained according to system information block SIB7 in network broadcast message
With the interference noise power on second up-link carrier；
According to the interference noise work(on the interference noise power on first up-link carrier and second up-link carrier
The difference of rate, obtains the interference noise power difference.
Preferably, the acquisition interference noise power difference, including：
By way of receiving the interference noise power difference that network side sends, the interference noise power is obtained poor
Value.
Preferably, methods described also includes：
Described according to the initial transmission power, when the second up load is switched to from first up-link carrier
Before Power Control being carried out to the power on second up-link carrier：
Power correction amount is obtained, the power correction amount is according to first up-link carrier and second up-link carrier
Path loss difference determines；
The initial transmission power is modified according to the power correction amount.
On the other hand, the embodiment of the present invention additionally provides a kind of output control device, for the up load of user equipment (UE)
Ripple switches, and described device includes：
First up-link carrier transmit power acquiring unit, for obtaining the transmit power on the first up-link carrier；
Interference noise power difference acquiring unit, for obtaining interference noise power difference, the interference noise power is poor
It is the difference of the interference noise power on the interference noise power and the second up-link carrier on first up-link carrier to be worth；
Second up-link carrier initial transmission power acquiring unit, for by the transmit power on first up-link carrier
Ask poor with the interference noise power difference, obtain the initial transmission power on second up-link carrier；
Second up-link carrier power control unit, for according to the initial transmission power, from the described first up load
Power Control is carried out to the power on second up-link carrier when ripple switches to second up-link carrier.
Preferably, the transmit power on first up-link carrier includes：
Transmit power on described last time slot of first up-link carrier, or,
The average of the transmit power in described last subframe of first up-link carrier.
Preferably, the interference noise power difference acquiring unit, including：
Interference noise power obtains subelement, for obtaining described the according to system information block SIB7 in network broadcast message
The interference noise power on interference noise power and second up-link carrier on one up-link carrier；
Interference noise power difference obtain subelement, for according to the interference noise power on first up-link carrier with
The difference of the interference noise power on second up-link carrier, obtains the interference noise power difference.
Preferably, the interference noise power difference acquiring unit, for by receiving the interference that network side sends
The mode of noise power difference obtains the interference noise power difference.
Preferably, described device also includes：
Power correction amount acquiring unit, for obtaining power correction amount, the power correction amount is up according to described first
Carrier wave determines with the path loss difference of second up-link carrier；
Power correction unit, for before the second up-link carrier power control unit is triggered, according to the power
Correction is modified to the initial transmission power.
The embodiment of the present invention is by obtaining the transmit power on the first up-link carrier and obtaining the first up-link carrier and the
Interference noise power difference on two up-link carriers, obtains the initial transmission power on the second up-link carrier, so as UE from
One up-link carrier just can be according to the initial transmission power to the work(on second up-link carrier when switching to the second up-link carrier
Rate is configured, and makes UE that power synchronous can be rapidly entered after being switched on the second up-link carrier, is advantageously implemented the flat of load
Weighing apparatus.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart for illustrating the method for the embodiment of the present invention one；
Fig. 2 is the subframe and time slot schematic diagram when illustrating that up-link carrier switches；
Fig. 3 is the flow chart for illustrating the method for the embodiment of the present invention two；
Fig. 4 is the schematic diagram for illustrating the device of the embodiment of the present invention three.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
For the comprehensive understanding present invention, numerous concrete details are refer in the following detailed description, but this area skill
Art personnel are it should be understood that the present invention can be realized without these details.In other embodiments, it is not described in detail known
Method, process, component and circuit, in order to avoid undesirably result in embodiment obscure.
Embodiment one
Fig. 1 is the flow chart of the method for the embodiment of the present invention one.A kind of work(when switching present embodiment discloses up-link carrier
Rate control method, for user equipment (UE), methods described includes：
S101, the transmit power obtained on the first up-link carrier.Skilled addressee readily understands that, institute of the present invention
The transmit power for the referring to i.e. transmit power of DPCCH.
In the present embodiment or some other embodiments of the invention, it is preferred that the transmission work(on first up-link carrier
Rate can include：
Transmit power on described last time slot of first up-link carrier.Up-link carrier 1 is schematically depict in Fig. 2
Subframe and time slot when being switched to up-link carrier 2, each subframe of wherein up-link carrier 1,2 include three time slots, now
Transmit power on used up-link carrier 1 is specifically the transmit power on up-link carrier 1 last time slot.
Or, the transmit power on first up-link carrier can also include：
The average of the transmit power in described last subframe of first up-link carrier.It is now used still by taking Fig. 2 as an example
Up-link carrier 1 on transmit power specifically be three averages of the transmit power of time slot of last subframe of up-link carrier 1.
S102, acquisition interference noise power difference, the interference noise power difference is on first up-link carrier
The difference of the interference noise power on interference noise power and the second up-link carrier.
Interference noise power is the power of interference plus noise, and the difference is that the first up-link carrier interference noise power subtracts
The value that two up-link carrier interference noise powers are obtained.The difference can be got by various modes, and the present embodiment is to the difference
Acquisition modes be not intended to limit, can be in these modes used herein all without departing from spirit and scope of the invention.
Additionally, sequencing the present embodiment of above-mentioned S101 and S102 is not also any limitation as, for example, can first obtain
The transmit power of one up-link carrier, then the interference noise power difference of first up-link carrier and the second up-link carrier is obtained,
Can also can also obtain simultaneously in turn.
S103, ask poor with the interference noise power difference by the transmit power on first up-link carrier, obtain
Initial transmission power on second up-link carrier.That is,
The transmit power of initial transmission power=the first up-link carrier of the second up-link carrier-（First up-link carrier is disturbed
The up-link carrier interference noise power of noise power-the second）.
When UE is switched fast on two up-link carriers, final goal is so that UE after the second up-link carrier is switched to
Power synchronous can be rapidly entered, therefore the initial transmission power of the second up-link carrier should be maintained near target received power value.
Because the annoyance level on the two up-link carriers is different, therefore target received power on the two carrier waves is also differed,
It is believed that the Signal to Interference plus Noise Ratio of the docking collection of letters number is approximately uniform.
First up-link carrier is that the received signal to noise ratio on carrier1 is：
SINR1（dB）=DPCCH_power_1-PL_1- (I_N) _ 1
Wherein, DPCCH_power_1 is the transmit power on the first up-link carrier, and PL_1 is upper on the first up-link carrier
Walking along the street is damaged, and (I_N) _ 1 is the dBm values of the interference plus noise on the first up-link carrier.
Similarly the second up-link carrier is that the received signal to noise ratio on carrier2 is：
SINR2（dB）=DPCCH_power_2-PL_2- (I_N) _ 2
Wherein, DPCCH_power_2 is the transmit power on the second up-link carrier, and PL_2 is upper on the second up-link carrier
Walking along the street is damaged, and (I_N) _ 2 are the dBm values of the interference plus noise on the second up-link carrier.
Because being to reach for the purpose of identical receives signal Signal to Interference plus Noise Ratio, therefore have：
SINR1（dB）=SINR2（dB）, i.e.,
DPCCH_power_1-PL_1- (I_N) _ 1=DPCCH_power_2-PL_2- (I_N) _ 2
Then can obtain
DPCCH_power_2=DPCCH_power_1-（(I_N) _ 1- (I_N) _ 2）-（PL_1-PL_2）.
For path loss difference（PL_1-PL_2）, up path loss model is typically written as the function of distance and carrier frequency, for example：
PL=16.9log10(d)+32.8+20log10(fc)
Wherein the unit of d is m, fcUnit be GHz.
Due to belonging to an a small amount of for the relative carrier center of uplink carrier frequency interval, therefore can do such as lower aprons：
If two up-link carriers are spaced 5MHz（It is assumed herein that the up-link carrier of center frequency ratio first of the second up-link carrier is high
5MHz）, fc is 2GHz, then above-mentioned path loss difference is
Up two carrier waves path loss difference is little as can be seen here, i.e.,（PL_1-PL_2）Can ignore.
Therefore just obtain：
DPCCH_power_2=DPCCH_power_1-（(I_N) _ 1- (I_N) _ 2）
That is the transmit power on initial transmission power=the first up-link carrier on the second up-link carrier-（First up load
Wave interference noise power the-the second up-link carrier interference noise power）.Obtain the formula left side above respectively by S101, S102
The value of parameter, then just can obtain the right parameter i.e. value of the initial transmission power of the second up-link carrier using the formula.
In the present embodiment or some other embodiments of the invention, it is preferred that for obtaining（(I_N) _ 1- (I_N) _ 2）,
I.e.
It is described to obtain the interference noise power difference, can include：
Interference noise power on first up-link carrier is obtained according to system information block SIB7 in network broadcast message
With the interference noise power on second up-link carrier；
According to the difference of the interference noise power on first up-link carrier and second up-link carrier, obtain described dry
Disturb noise power difference.
SIB7 in system broadcast message（System Information Block type7）Up-link is described to do
Horizontal size is disturbed, the uplink interference level that SIB7 is included in existing protocol is used for PRACH（Physical Random
Access CHannel）During Preamble initial power sizes setting.Uplink interference level is contained in SIB7 information
UL interference（Value -110~-70dBm）Information, therefore UE can obtain the dry of the first up-link carrier by SIB7
Disturb the interference noise power of noise power and the second up-link carrier and then obtain the difference of the two.
Certainly simply a kind of acquisition is listed more than（(I_N) _ 1- (I_N) _ 2）Mode, in certain embodiments of the invention
In, it is also possible to obtain by other means（(I_N) _ 1- (I_N) _ 2）, for example：
Acquisition institute interference noise power difference, can include：
By way of receiving the interference noise power difference that network side sends, the interference noise power is obtained poor
Value.
S104, according to the initial transmission power, switching to second up-link carrier from first up-link carrier
When Power Control is carried out to the power on second up-link carrier.Switched on described second from first up-link carrier
Initial transmission power on second up-link carrier is set to the initial transmission power of acquisition in S103 when row is carried, with
Make UE that power synchronous can be rapidly entered after the second up-link carrier is switched to.
The present embodiment is by obtaining the transmit power on the first up-link carrier and obtaining on the first up-link carrier and second
Interference noise power difference on row carrier wave, obtains the initial transmission power on the second up-link carrier, so when UE is from first
Just the power on second up-link carrier can be entered according to the initial transmission power during row carrier switch to the second up-link carrier
Row is set, and makes UE that power synchronous can be rapidly entered after being switched on the second up-link carrier, is advantageously implemented the balance of load.
Embodiment two
Fig. 3 is the flow chart of the method for the embodiment of the present invention two.The present embodiment is based on embodiment one, except that, implement
Path loss difference is have ignored in example one（PL_1-PL_2）, and it is initial in order to obtain more accurately the second up-link carrier in the present embodiment
Transmit power, does not ignore path loss difference, but be handed down to UE by network side as a constant.That is the methods described of embodiment one
Can also include：
Described according to the initial transmission power, when the second up load is switched to from first up-link carrier
Before Power Control being carried out to the power on second up-link carrier：
S105, acquisition power correction amount, the power correction amount are up with described second according to first up-link carrier
The path loss difference of carrier wave determines；
S106, the initial transmission power is modified according to the power correction amount.
Then it is DPCCH_ when the last formula for obtaining in the S103 of embodiment one, path loss difference between consider up-link carrier
Power_2=DPCCH_power_1-（(I_N) _ 1- (I_N) _ 2）-（PL_1-PL_2）=DPCCH_power_1-（(I_
N)_1-(I_N)_2）+ Constant_Value
Wherein（(I_N)_1-(I_N)_2）For on the first up-link carrier with the second up-link carrier on interference noise power
The difference of dBm values；Constant_Value is power correction amount, can be the constant value of the net side broadcast that UE gets.
Other step the present embodiment identical with embodiment one are repeated no more.It is referring to the explanation of embodiment one in place of related
Can.
The present embodiment is by obtaining the transmit power on the first up-link carrier and obtaining on the first up-link carrier and second
Interference noise power difference on row carrier wave, obtains the initial transmission power on the second up-link carrier, and to initial transmission power
It is modified, makes it more accurate, so just can be initial according to this when UE switches to the second up-link carrier from the first up-link carrier
Transmit power is configured to the power on second up-link carrier, makes UE energy after being switched on the second up-link carrier quick
Ingoing power synchronization, is advantageously implemented the balance of load.
Embodiment three
Fig. 4 is the schematic diagram of the device of the embodiment of the present invention three.The present embodiment is corresponding with above method embodiment, there is provided
A kind of output control device 400, for the up-link carrier switching of user equipment (UE), described device 400 includes：
First up-link carrier transmit power acquiring unit 401, for obtaining the transmit power on the first up-link carrier；
Interference noise power difference acquiring unit 402, for obtaining interference noise power difference, the interference noise power
Difference is the difference of the interference noise power on interference noise power and the second up-link carrier on first up-link carrier；
Second up-link carrier initial transmission power acquiring unit 403, for by the transmission on first up-link carrier
Power asks poor with the interference noise power difference, obtains the initial transmission power on second up-link carrier；
Second up-link carrier power control unit 404, for according to the initial transmission power, up from described first
Power Control is carried out to the power on second up-link carrier during carrier switch to second up-link carrier.
Preferably, the transmit power on first up-link carrier includes：
Transmit power on described last time slot of first up-link carrier, or,
The average of the transmit power in described last subframe of first up-link carrier.
Preferably, the interference noise power difference acquiring unit 402, including：
Interference noise power obtains subelement 4021, for obtaining institute according to system information block SIB7 in network broadcast message
State the interference noise power on the interference noise power and second up-link carrier on the first up-link carrier；
Interference noise power difference obtains subelement 4022, for according to the interference noise work(on first up-link carrier
The difference of the interference noise power in rate and second up-link carrier, obtains the interference noise power difference.
Preferably, the interference noise power difference acquiring unit 402, for by receiving the described dry of network side transmission
The mode for disturbing noise power difference obtains the interference noise power difference.
Preferably, described device 400 also includes：
Power correction amount acquiring unit, for obtaining power correction amount, the power correction amount is up according to described first
Carrier wave determines with the path loss difference of second up-link carrier；
Power correction unit, for before the second up-link carrier power control unit is triggered, according to the power
Correction is modified to the initial transmission power
For device embodiment, because it corresponds essentially to embodiment of the method, so related part is referring to method reality
Apply the part explanation of example.Device embodiment described above is only schematical, wherein described as separating component
The unit of explanation can be or may not be physically separate, and the part shown as unit can be or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Selection some or all of module therein is needed to realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not
In the case of paying creative work, you can to understand and implement.
The present embodiment is by obtaining the transmit power on the first up-link carrier and obtaining on the first up-link carrier and second
Interference noise power difference on row carrier wave, obtains the initial transmission power on the second up-link carrier, so when UE is from first
Just the power on second up-link carrier can be entered according to the initial transmission power during row carrier switch to the second up-link carrier
Row is set, and makes UE that power synchronous can be rapidly entered after being switched on the second up-link carrier, is advantageously implemented the balance of load.
The present invention can be described in the general context of computer executable instructions, such as program
Module.Usually, program module includes performing particular task or realizes routine, program, object, the group of particular abstract data type
Part, data structure etc..The present invention can also be in a distributed computing environment put into practice, in these DCEs, by
Remote processing devices connected by communication network perform task.In a distributed computing environment, program module can be with
In local and remote computer-readable storage medium including including storage device.
One of ordinary skill in the art will appreciate that realize that all or part of step in above method implementation method is can
Completed with instructing the hardware of correlation by program, described program can be stored in computer read/write memory medium,
The storage medium for obtaining designated herein, such as：ROM, RAM, magnetic disc, CD etc..
Also, it should be noted that herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and between not necessarily requiring or implying these entities or operate
There is any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to contain
Lid nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the scope of the present invention.Herein
In apply specific case lock carried out to principle of the invention and implementation method and state, the explanation of above example is only intended to side
Assistant solves the method for the present invention and its core concept；Simultaneously for those of ordinary skill in the art, according to think of of the invention
Think, will change in specific embodiments and applications.In sum, this specification content should not be construed as right
Limitation of the invention.All any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., include
Within the scope of the present invention.
Claims (10)
1. a kind of Poewr control method, for the up-link carrier switching of user equipment (UE), it is characterised in that methods described includes：
The transmit power on the first up-link carrier is obtained, and,
Interference noise power difference is obtained, the interference noise power difference is the interference noise work(on first up-link carrier
The difference of the interference noise power in rate and the second up-link carrier；
Ask poor with the interference noise power difference by the transmit power on first up-link carrier, obtain on described second
Initial transmission power on row carrier wave；
According to the initial transmission power, when second up-link carrier is switched to from first up-link carrier to described
Power on two up-link carriers carries out Power Control.
2. method according to claim 1, it is characterised in that the transmit power on first up-link carrier includes：
Transmit power on described last time slot of first up-link carrier, or,
The average of the transmit power in described last subframe of first up-link carrier.
3. method according to claim 1, it is characterised in that the acquisition interference noise power difference, including：
Interference noise power and the institute on first up-link carrier are obtained according to system information block SIB7 in network broadcast message
State the interference noise power on the second up-link carrier；
According to the interference noise power on the interference noise power on first up-link carrier and second up-link carrier it
Difference, obtains the interference noise power difference.
4. method according to claim 1, it is characterised in that the acquisition interference noise power difference, including：
By way of receiving the interference noise power difference that network side sends, the interference noise power difference is obtained.
5. method according to claim 1, it is characterised in that methods described also includes：
Described according to the initial transmission power, when second up-link carrier is switched to from first up-link carrier pair
Before power on second up-link carrier carries out Power Control：
Obtain power correction amount, path loss of the power correction amount according to first up-link carrier and second up-link carrier
Difference determines；
The initial transmission power is modified according to the power correction amount.
6. a kind of output control device, for the up-link carrier switching of user equipment (UE), it is characterised in that described device includes：
First up-link carrier transmit power acquiring unit, for obtaining the transmit power on the first up-link carrier；
Interference noise power difference acquiring unit, for obtaining interference noise power difference, the interference noise power difference is
The difference of the interference noise power on interference noise power and the second up-link carrier on first up-link carrier；
Second up-link carrier initial transmission power acquiring unit, for by the transmit power on first up-link carrier and institute
State interference noise power difference and ask poor, obtain the initial transmission power on second up-link carrier；
Second up-link carrier power control unit, for according to the initial transmission power, being cut from first up-link carrier
Power Control is carried out to the power on second up-link carrier when shifting to second up-link carrier.
7. device according to claim 6, it is characterised in that the transmit power on first up-link carrier includes：
Transmit power on described last time slot of first up-link carrier, or,
The average of the transmit power in described last subframe of first up-link carrier.
8. device according to claim 6, it is characterised in that the interference noise power difference acquiring unit, including：
Interference noise power obtains subelement, for obtaining described first according to system information block SIB7 in network broadcast message
The interference noise power on interference noise power and second up-link carrier on row carrier wave；
Interference noise power difference obtain subelement, for according to the interference noise power on first up-link carrier with it is described
The difference of the interference noise power on the second up-link carrier, obtains the interference noise power difference.
9. device according to claim 6, it is characterised in that the interference noise power difference acquiring unit, for leading to
The mode for crossing the interference noise power difference for receiving network side transmission obtains the interference noise power difference.
10. device according to claim 6, it is characterised in that described device also includes：
Power correction amount acquiring unit, for obtaining power correction amount, the power correction amount is according to first up-link carrier
Path loss difference with second up-link carrier determines；
Power correction unit, for before the second up-link carrier power control unit is triggered, according to the power correction
Amount is modified to the initial transmission power.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259479.6A CN104254117B (en) | 2013-06-26 | 2013-06-26 | A kind of Poewr control method and device |
| PCT/CN2014/080856 WO2014206317A1 (en) | 2013-06-26 | 2014-06-26 | Power control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259479.6A CN104254117B (en) | 2013-06-26 | 2013-06-26 | A kind of Poewr control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104254117A CN104254117A (en) | 2014-12-31 |
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| CN112543507B (en) * | 2019-09-23 | 2022-09-13 | 成都鼎桥通信技术有限公司 | Carrier selection method, device, base station and storage medium based on uplink interference |
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| CN101932047A (en) * | 2009-06-22 | 2010-12-29 | 大唐移动通信设备有限公司 | Method and system for E-PUCH power control |
| CN103119994A (en) * | 2010-08-02 | 2013-05-22 | 阿尔卡特朗讯 | Transmission power control in a multi-carrier wireless communication system |
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| WO2007044316A1 (en) * | 2005-10-06 | 2007-04-19 | Interdigital Technology Corporation | Method and apparatus for controlling uplink transmission power for ofdma based evolved utra |
| US20090291642A1 (en) * | 2008-05-23 | 2009-11-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Systems and Methods for SIR Estimation for Power Control |
| CN102187727B (en) * | 2009-03-12 | 2015-03-25 | Lg电子株式会社 | The method for switching operating carrier at a user equipment in wireless communication system |
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| CN101932047A (en) * | 2009-06-22 | 2010-12-29 | 大唐移动通信设备有限公司 | Method and system for E-PUCH power control |
| CN103119994A (en) * | 2010-08-02 | 2013-05-22 | 阿尔卡特朗讯 | Transmission power control in a multi-carrier wireless communication system |
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