CN104254117A - Power control method and apparatus - Google Patents

Power control method and apparatus Download PDF

Info

Publication number
CN104254117A
CN104254117A CN201310259479.6A CN201310259479A CN104254117A CN 104254117 A CN104254117 A CN 104254117A CN 201310259479 A CN201310259479 A CN 201310259479A CN 104254117 A CN104254117 A CN 104254117A
Authority
CN
China
Prior art keywords
link carrier
power
interference noise
noise power
difference
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201310259479.6A
Other languages
Chinese (zh)
Other versions
CN104254117B (en
Inventor
胡文权
花梦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honor Device Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201310259479.6A priority Critical patent/CN104254117B/en
Priority to PCT/CN2014/080856 priority patent/WO2014206317A1/en
Publication of CN104254117A publication Critical patent/CN104254117A/en
Application granted granted Critical
Publication of CN104254117B publication Critical patent/CN104254117B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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

Abstract

The embodiment of the invention discloses a power control method and apparatus, wherein the method and apparatus are used for uplink carrier switching of user equipment (UE). The method comprises: obtaining a sending power of a first uplink carrier and obtaining an interference noise power difference value of the first uplink carrier and a second uplink carrier; on the basis of the sending power and the interference noise power difference value, obtaining an initial sending power of the second uplink carrier; and carrying out power controlling during switching from the first uplink carrier to the second uplink carrier. According to the embodiment, the initial sending power of the second uplink carrier is obtained by obtaining the sending power of the first uplink carrier and the interference noise power difference value; and when the UE is switched from the first uplink carrier to the second uplink carrier, setting can be carried out based on the initial sending power, so that the UE can enter the power synchronization state rapidly when being switched to the second uplink carrier and thus load balancing can be realized conveniently.

Description

A kind of Poewr control method and device
Technical field
The embodiment of the present invention relates to up-link carrier load balancing techniques, especially relates to a kind of Poewr control method and device.
Background technology
Current, being all generally that the downlink traffic of hypothesis network is always greater than upstream traffic in radio network technique, is therefore the more Radio Resource of downstream arrangements relative to upper guild.Such as, descending UE receives from the data on the multiple carrier wave in net side, a up then configuration carrier wave.When UE negligible amounts, the mutual interference in up process of transmitting between each UE is not remarkable; But when in network, UE number is more, significantly strengthen causing the uplink interference between UE.Now in order to overcome mutual interference, although UE can send higher power to ensure the Signal to Interference plus Noise Ratio of uplink receiving signal, this obviously can cause transmitting efficiency to reduce.
When running into the more situation of above-mentioned UE number, the up-link carrier that other descending carriers are corresponding may be in the state of a low uplink interference, if the up-link carrier of work at present is switched on the less up-link carrier of uplink interference by UE, then can reduce the uplink interference between UE, reach the balance of load between up-link carrier.Inventor is realizing finding in process of the present invention, want to carry out up-link carrier switching, how to control the initial transmission power on new up-link carrier, namely the DPCCH(Dedicated Physical Control Channel on new up-link carrier, Dedicated Physical Control Channel) initial transmission power, be a key issue, and not yet have effective solution in prior art.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to provide a kind of Poewr control method and device, to solve this problem how to arrange of initial transmission power switched at up-link carrier on stylish up-link carrier.
On the one hand, embodiments provide a kind of Poewr control method, the up-link carrier for user equipment (UE) switches, and described method comprises:
Obtain the transmitted power on the first up-link carrier, and,
Obtain interference noise power difference, described interference noise power difference is the difference of the interference noise power on described first up-link carrier and the interference noise power on the second up-link carrier;
Ask poor by the transmitted power on described first up-link carrier and described interference noise power difference, obtain the initial transmission power on described second up-link carrier;
According to described initial transmission power, when switching to described second up-link carrier from described first up-link carrier, power control is carried out to the power on described second up-link carrier.
Preferably, the transmitted power on described first up-link carrier comprises:
Transmitted power on described last time slot of first up-link carrier, or,
The average of the transmitted power in described last subframe of first up-link carrier.
Preferably, described acquisition interference noise power difference, comprising:
The interference noise power on described first up-link carrier and the interference noise power on described second up-link carrier is obtained according to system information block SIB7 in network broadcast message;
According to the difference of the interference noise power on the interference noise power on described first up-link carrier and described second up-link carrier, obtain described interference noise power difference.
Preferably, described acquisition interference noise power difference, comprising:
By receiving the mode of the described interference noise power difference that network side sends, obtain described interference noise power difference.
Preferably, described method also comprises:
Described according to described initial transmission power, before power control being carried out to the power on described second up-link carrier when switching to described second up year from described first up-link carrier:
Obtain power correction amount, described power correction amount is determined according to the path loss difference of described first up-link carrier and described second up-link carrier;
According to described power correction amount, described initial transmission power is revised.
On the other hand, the embodiment of the present invention additionally provides a kind of output control device, and the up-link carrier for user equipment (UE) switches, and described device comprises:
First up-link carrier transmitted power acquiring unit, for obtaining the transmitted power on the first up-link carrier;
Interference noise power difference acquiring unit, for obtaining interference noise power difference, described interference noise power difference is the difference of the interference noise power on described first up-link carrier and the interference noise power on the second up-link carrier;
Second up-link carrier initial transmission power acquiring unit, for asking poor by the transmitted power on described first up-link carrier and described interference noise power difference, obtains the initial transmission power on described second up-link carrier;
Second up-link carrier power control unit, for according to described initial transmission power, carries out power control when switching to described second up-link carrier from described first up-link carrier to the power on described second up-link carrier.
Preferably, the transmitted power on described first up-link carrier comprises:
Transmitted power on described last time slot of first up-link carrier, or,
The average of the transmitted power in described last subframe of first up-link carrier.
Preferably, described interference noise power difference acquiring unit, comprising:
Interference noise power obtains subelement, for obtaining the interference noise power on described first up-link carrier and the interference noise power on described second up-link carrier according to system information block SIB7 in network broadcast message;
Interference noise power difference obtains subelement, for the difference according to the interference noise power on the interference noise power on described first up-link carrier and described second up-link carrier, obtains described interference noise power difference.
Preferably, described interference noise power difference acquiring unit, obtains described interference noise power difference for the mode by receiving the described interference noise power difference that network side sends.
Preferably, described device also comprises:
Power correction amount acquiring unit, for obtaining power correction amount, described power correction amount is determined according to the path loss difference of described first up-link carrier and described second up-link carrier;
Power correction unit, for before the described second up-link carrier power control unit of triggering, revises described initial transmission power according to described power correction amount.
The embodiment of the present invention is by the interference noise power difference in the transmitted power on acquisition first up-link carrier and acquisition the first up-link carrier and the second up-link carrier, obtain the initial transmission power on the second up-link carrier, just can arrange the power described second up-link carrier according to this initial transmission power when UE switches to the second up-link carrier from the first up-link carrier like this, UE is made to be switched to after on the second up-link carrier and synchronously, the balance realizing load can be conducive to by ingoing power fast.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, 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.
Fig. 1 is the flow chart that the embodiment of the present invention one method is described;
Fig. 2 is subframe when illustrating that up-link carrier switches and time slot schematic diagram;
Fig. 3 is the flow chart that the embodiment of the present invention two method is described;
Fig. 4 is the schematic diagram that the embodiment of the present invention three device is described.
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 the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In order to complete understanding the present invention, refer to numerous concrete details in the following detailed description, but it should be appreciated by those skilled in the art that the present invention can realize without the need to these details.In other embodiments, be not described in detail known method, process, assembly and circuit, in order to avoid unnecessarily cause embodiment fuzzy.
Embodiment one
Fig. 1 is the flow chart of the embodiment of the present invention one method.Present embodiment discloses Poewr control method when a kind of up-link carrier switches, for user equipment (UE), described method comprises:
S101, the transmitted power obtained on the first up-link carrier.Those skilled in the art are it is easily understood that the transmitted power of transmitted power mentioned by the present invention and DPCCH.
In the present embodiment or the present invention's some other embodiments, preferably, the transmitted power on described first up-link carrier can comprise:
Transmitted power on described last time slot of first up-link carrier.Subframe when up-link carrier 1 is switched to up-link carrier 2 and time slot is schematically depict in Fig. 2, wherein each subframe of up-link carrier 1,2 includes three time slots, and the transmitted power on now used up-link carrier 1 is specifically the transmitted power on last time slot of up-link carrier 1.
Or the transmitted power on described first up-link carrier also can comprise:
The average of the transmitted power in described last subframe of first up-link carrier.Still for Fig. 2, the transmitted power on now used up-link carrier 1 is specifically the average of the transmitted power of last subframe of up-link carrier 1 three time slots.
S102, acquisition interference noise power difference, described interference noise power difference is the difference of the interference noise power on described first up-link carrier and the interference noise power on the second up-link carrier.
The power of interference noise power and interference plus noise, this difference i.e. the first up-link carrier interference noise power deducts the value that the second up-link carrier interference noise power obtains.This difference can be got by various mode, and the obtain manner of the present embodiment to this difference does not limit, and these modes that can use herein all do not deviate from spirit of the present invention and protection range.
In addition, sequencing the present embodiment of above-mentioned S101 and S102 is not also limited, such as, first can obtain the transmitted power of the first up-link carrier, then obtains the interference noise power difference of described first up-link carrier and the second up-link carrier, also can conversely, can also obtain simultaneously.
S103, ask poor by the transmitted power on described first up-link carrier and described interference noise power difference, obtain the initial transmission power on described second up-link carrier.That is,
Transmitted power-(first up-link carrier interference noise power-the second up-link carrier interference noise power) of initial transmission power=the first up-link carrier of the second up-link carrier.
When UE switches fast on two up-link carriers, final goal makes the quick ingoing power of UE energy after being switched to the second up-link carrier synchronous, therefore the initial transmission power of the second up-link carrier should maintain near target received power value.Because the annoyance level on these two up-link carriers is different, the target received power therefore on these two carrier waves is not identical yet, but can think that Signal to Interference plus Noise Ratio is to received signal approximately uniform.
Received signal to noise ratio on first up-link carrier and carrier1 is:
SINR1（dB）＝DPCCH_power_1－PL_1－(I_N)_1
Wherein, DPCCH_power_1 is the transmitted power on the first up-link carrier, and PL_1 is the up path loss on the first up-link carrier, and (I_N) _ 1 is the dBm value of the interference plus noise on the first up-link carrier.
Received signal to noise ratio in like manner on the second up-link carrier and carrier2 is:
SINR2（dB）＝DPCCH_power_2－PL_2－(I_N)_2
Wherein, DPCCH_power_2 is the transmitted power on the second up-link carrier, and PL_2 is the up path loss on the second up-link carrier, and (I_N) _ 2 are dBm values of the interference plus noise on the second up-link carrier.
Because be to reach for the purpose of identical Received signal strength Signal to Interference plus Noise Ratio, therefore have:
SINR1(dB)=SINR2(dB), namely
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 generally written as the function of Distance geometry carrier frequency, such as:
PL＝16.9log 10(d)＋32.8＋20log 10(f c)
Wherein the unit of d is m, f cunit be GHz.
Because relative carrier center, uplink carrier frequency interval belongs to an a small amount of, therefore can do as lower aprons:
PL _ 2 - PL _ 1 = 20 f c ln 10 Δf c
If two up-link carrier interval 5MHz(suppose the center frequency ratio first up-link carrier height 5MHz of the second up-link carrier herein), fc is 2GHz, then above-mentioned path loss difference is
PL _ 2 - PL _ 1 = 20 2 ln 10 0.005 = 0.021 ( dB )
Up two carrier wave path loss difference are little as can be seen here, and namely (PL_1-PL_2) can ignore.
Therefore just obtain:
DPCCH_power_2＝DPCCH_power_1－（(I_N)_1－(I_N)_2）
Namely the transmitted power on initial transmission power=the first up-link carrier on the second up-link carrier-(the first up-link carrier interference noise power-the second up-link carrier interference noise power).Obtained the value of formula left side parameter above by S101, S102 respectively, so utilize this formula just can obtain the right parameter i.e. value of the initial transmission power of the second up-link carrier.
In the present embodiment or the present invention's some other embodiments, preferably, for acquisition ((I_N) _ 1-(I_N) _ 2), namely
The described interference noise power difference of described acquisition, can comprise:
The interference noise power on described first up-link carrier and the interference noise power on described second up-link carrier is obtained according to system information block SIB7 in network broadcast message;
According to the difference of the interference noise power on described first up-link carrier and described second up-link carrier, obtain described interference noise power difference.
SIB7(System Information Block type7 in system broadcast message) describe uplink interference level size, the uplink interference level that in existing protocol, SIB7 comprises is for PRACH(Physical Random Access CHannel) setting of Preamble initial power size in process.Uplink interference level UL interference(value-110 ~-70dBm is contained in SIB7 information) information, therefore UE can obtain the interference noise power of the first up-link carrier and the interference noise power of the second up-link carrier by SIB7 and then obtain the two difference.
Certainly the above mode just listing a kind of acquisition ((I_N) _ 1-(I_N) _ 2), in some embodiments of the invention, also can obtain ((I_N) _ 1-(I_N) _ 2) by other means, such as:
Described acquisition institute interference noise power difference, can comprise:
By receiving the mode of the described interference noise power difference that network side sends, obtain described interference noise power difference.
S104, according to described initial transmission power, when switching to described second up-link carrier from described first up-link carrier, power control is carried out to the power on described second up-link carrier.When switching to described second up year from described first up-link carrier, the initial transmission power on described second up-link carrier is set to the described initial transmission power obtained in S103, to make the quick ingoing power of UE energy after being switched to the second up-link carrier synchronous.
The present embodiment is by the interference noise power difference in the transmitted power on acquisition first up-link carrier and acquisition the first up-link carrier and the second up-link carrier, obtain the initial transmission power on the second up-link carrier, just can arrange the power described second up-link carrier according to this initial transmission power when UE switches to the second up-link carrier from the first up-link carrier like this, UE is made to be switched to after on the second up-link carrier and synchronously, the balance realizing load can be conducive to by ingoing power fast.
Embodiment two
Fig. 3 is the flow chart of the embodiment of the present invention two method.The present embodiment is based on embodiment one, difference is, have ignored path loss difference (PL_1-PL_2) in embodiment one, and in order to obtain the second up-link carrier initial transmission power more accurately in the present embodiment, do not ignore path loss difference, but it can be used as a constant to be handed down to UE by network side.Namely described in embodiment one, method can also comprise:
Described according to described initial transmission power, before power control being carried out to the power on described second up-link carrier when switching to described second up year from described first up-link carrier:
S105, acquisition power correction amount, described power correction amount is determined according to the path loss difference of described first up-link carrier and described second up-link carrier;
S106, according to described power correction amount, described initial transmission power to be revised.
The last formula obtained in embodiment one S103, when considering the path loss difference between up-link carrier, be then DPCCH_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) is the difference with the interference noise power dBm value on the second up-link carrier on the first up-link carrier; Constant_Value and power correction amount can be the constant values of the net side broadcast that UE gets.
Other step the present embodiment identical with embodiment one repeat no more.Relevant part is see the explanation of embodiment one.
The present embodiment is by the interference noise power difference in the transmitted power on acquisition first up-link carrier and acquisition the first up-link carrier and the second up-link carrier, obtain the initial transmission power on the second up-link carrier, and initial transmission power is revised, make it more accurate, just can arrange the power described second up-link carrier according to this initial transmission power when UE switches to the second up-link carrier from the first up-link carrier like this, UE is made to be switched to after on the second up-link carrier and synchronously, the balance realizing load can be conducive to by ingoing power fast.
Embodiment three
Fig. 4 is the schematic diagram of the embodiment of the present invention three device.The present embodiment is corresponding with said method embodiment, provides a kind of output control device 400, and the up-link carrier for user equipment (UE) switches, and described device 400 comprises:
First up-link carrier transmitted power acquiring unit 401, for obtaining the transmitted power on the first up-link carrier;
Interference noise power difference acquiring unit 402, for obtaining interference noise power difference, described interference noise power difference is the difference of the interference noise power on described first up-link carrier and the interference noise power on the second up-link carrier;
Second up-link carrier initial transmission power acquiring unit 403, for asking poor by the transmitted power on described first up-link carrier and described interference noise power difference, obtains the initial transmission power on described second up-link carrier;
Second up-link carrier power control unit 404, for according to described initial transmission power, carries out power control when switching to described second up-link carrier from described first up-link carrier to the power on described second up-link carrier.
Preferably, the transmitted power on described first up-link carrier comprises:
Transmitted power on described last time slot of first up-link carrier, or,
The average of the transmitted power in described last subframe of first up-link carrier.
Preferably, described interference noise power difference acquiring unit 402, comprising:
Interference noise power obtains subelement 4021, for obtaining the interference noise power on described first up-link carrier and the interference noise power on described second up-link carrier according to system information block SIB7 in network broadcast message;
Interference noise power difference obtains subelement 4022, for the difference according to the interference noise power on the interference noise power on described first up-link carrier and described second up-link carrier, obtains described interference noise power difference.
Preferably, described interference noise power difference acquiring unit 402, obtains described interference noise power difference for the mode by receiving the described interference noise power difference that network side sends.
Preferably, described device 400 also comprises:
Power correction amount acquiring unit, for obtaining power correction amount, described power correction amount is determined according to the path loss difference of described first up-link carrier and described second up-link carrier;
Power correction unit, for before the described second up-link carrier power control unit of triggering, revises described initial transmission power according to described power correction amount
For device embodiment, because it corresponds essentially to embodiment of the method, so relevant part illustrates see the part of embodiment of the method.Device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
The present embodiment is by the interference noise power difference in the transmitted power on acquisition first up-link carrier and acquisition the first up-link carrier and the second up-link carrier, obtain the initial transmission power on the second up-link carrier, just can arrange the power described second up-link carrier according to this initial transmission power when UE switches to the second up-link carrier from the first up-link carrier like this, UE is made to be switched to after on the second up-link carrier and synchronously, the balance realizing load can be conducive to by ingoing power fast.
The present invention can describe in the general context of computer executable instructions, such as program module.Usually, program module comprises the routine, program, object, assembly, data structure etc. that perform particular task or realize particular abstract data type.Also can put into practice the present invention in a distributed computing environment, in these distributed computing environment (DCE), be executed the task by the remote processing devices be connected by communication network.In a distributed computing environment, program module can be arranged in the local and remote computer-readable storage medium comprising memory device.
One of ordinary skill in the art will appreciate that all or part of step realized in said method execution mode is that the hardware that can carry out instruction relevant by program has come, described program can be stored in computer read/write memory medium, here the alleged storage medium obtained, as: ROM, RAM, magnetic disc, CD etc.
Also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Apply specific case herein to have carried out lock to principle of the present invention and execution mode and state, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications.In sum, this description should not be construed as limitation of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.

Claims (10)

1. a Poewr control method, the up-link carrier for user equipment (UE) switches, and it is characterized in that, described method comprises:
Obtain the transmitted power on the first up-link carrier, and,
Obtain interference noise power difference, described interference noise power difference is the difference of the interference noise power on described first up-link carrier and the interference noise power on the second up-link carrier;
Ask poor by the transmitted power on described first up-link carrier and described interference noise power difference, obtain the initial transmission power on described second up-link carrier;
According to described initial transmission power, when switching to described second up-link carrier from described first up-link carrier, power control is carried out to the power on described second up-link carrier.
2. method according to claim 1, is characterized in that, the transmitted power on described first up-link carrier comprises:
Transmitted power on described last time slot of first up-link carrier, or,
The average of the transmitted power in described last subframe of first up-link carrier.
3. method according to claim 1, is characterized in that, described acquisition interference noise power difference, comprising:
The interference noise power on described first up-link carrier and the interference noise power on described second up-link carrier is obtained according to system information block SIB7 in network broadcast message;
According to the difference of the interference noise power on the interference noise power on described first up-link carrier and described second up-link carrier, obtain described interference noise power difference.
4. method according to claim 1, is characterized in that, described acquisition interference noise power difference, comprising:
By receiving the mode of the described interference noise power difference that network side sends, obtain described interference noise power difference.
5. method according to claim 1, is characterized in that, described method also comprises:
Described according to described initial transmission power, before power control being carried out to the power on described second up-link carrier when switching to described second up year from described first up-link carrier:
Obtain power correction amount, described power correction amount is determined according to the path loss difference of described first up-link carrier and described second up-link carrier;
According to described power correction amount, described initial transmission power is revised.
6. an output control device, the up-link carrier for user equipment (UE) switches, and it is characterized in that, described device comprises:
First up-link carrier transmitted power acquiring unit, for obtaining the transmitted power on the first up-link carrier;
Interference noise power difference acquiring unit, for obtaining interference noise power difference, described interference noise power difference is the difference of the interference noise power on described first up-link carrier and the interference noise power on the second up-link carrier;
Second up-link carrier initial transmission power acquiring unit, for asking poor by the transmitted power on described first up-link carrier and described interference noise power difference, obtains the initial transmission power on described second up-link carrier;
Second up-link carrier power control unit, for according to described initial transmission power, carries out power control when switching to described second up-link carrier from described first up-link carrier to the power on described second up-link carrier.
7. device according to claim 6, is characterized in that, the transmitted power on described first up-link carrier comprises:
Transmitted power on described last time slot of first up-link carrier, or,
The average of the transmitted power in described last subframe of first up-link carrier.
8. device according to claim 6, is characterized in that, described interference noise power difference acquiring unit, comprising:
Interference noise power obtains subelement, for obtaining the interference noise power on described first up-link carrier and the interference noise power on described second up-link carrier according to system information block SIB7 in network broadcast message;
Interference noise power difference obtains subelement, for the difference according to the interference noise power on the interference noise power on described first up-link carrier and described second up-link carrier, obtains described interference noise power difference.
9. device according to claim 6, is characterized in that, described interference noise power difference acquiring unit, obtains described interference noise power difference for the mode by receiving the described interference noise power difference that network side sends.
10. device according to claim 6, is characterized in that, described device also comprises:
Power correction amount acquiring unit, for obtaining power correction amount, described power correction amount is determined according to the path loss difference of described first up-link carrier and described second up-link carrier;
Power correction unit, for before the described second up-link carrier power control unit of triggering, revises described initial transmission power according to described power correction amount.
CN201310259479.6A 2013-06-26 2013-06-26 A kind of Poewr control method and device Active CN104254117B (en)

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 true CN104254117A (en) 2014-12-31
CN104254117B CN104254117B (en) 2017-06-13

Family

ID=52141093

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310259479.6A Active CN104254117B (en) 2013-06-26 2013-06-26 A kind of Poewr control method and device

Country Status (2)

Country Link
CN (1) CN104254117B (en)
WO (1) WO2014206317A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018202019A1 (en) * 2017-05-05 2018-11-08 华为技术有限公司 Communication method, terminal device, and network device
CN112543507A (en) * 2019-09-23 2021-03-23 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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070082620A1 (en) * 2005-10-06 2007-04-12 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
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8554225B2 (en) * 2009-03-12 2013-10-08 Lg Electronics Inc. Method for switching operating carrier at a user equipment in wireless communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070082620A1 (en) * 2005-10-06 2007-04-12 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
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018202019A1 (en) * 2017-05-05 2018-11-08 华为技术有限公司 Communication method, terminal device, and network device
CN112543507A (en) * 2019-09-23 2021-03-23 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

Also Published As

Publication number Publication date
WO2014206317A1 (en) 2014-12-31
CN104254117B (en) 2017-06-13

Similar Documents

Publication Publication Date Title
US11632727B2 (en) Method and apparatus for transmitting synchronization signal in wireless communication system
CN102215534B (en) Sub-frame configuration coordination approach and device thereof between a kind of TDD cell
US10542506B2 (en) Method and apparatus for indicating uplink-downlink carrier frequency spacing, and method and apparatus for obtaining uplink-downlink carrier frequency spacing
CN105580305B (en) The control signaling broadcasted for enabling double bounce orthogonalization for device-to-device
EP3393167A1 (en) Resource allocation method and device, and base station
CN105393608A (en) User equipment and power allocation method
US11737068B2 (en) Method for determining carrier center frequency and apparatus
CN103139781A (en) Method of handling resource allocation for MTC and related communication device
CN105873204A (en) Uplink sending power determining method and user equipment
CN105814961A (en) Transmission method for system information, base station and user equipment
CN107409004A (en) A kind of terminal device, the network equipment, and the transmission method of beep-page message
JP6513817B2 (en) Signal transmission apparatus, system and method
CN108123785A (en) Communication means and system
CN102469583B (en) Paging resource coordination method in heterogeneous network and system thereof, and base station
CN104254117A (en) Power control method and apparatus
CN111769900B (en) Method and device for scheduling channel state information reference signal
WO2021056511A1 (en) Retransmission of msgb in two-step random access procedure
EP3840244A1 (en) Signal transmission method, beam determination method and apparatuses therefor
US20200052772A1 (en) Data transmission method and network device
CN110299935B (en) Communication method, base station, terminal, storage medium and electronic device
CN111417144B (en) Receiving configuration method, data sending method, terminal and network equipment
CN111800813B (en) Method and device for detecting narrow-band signal interference
CN109923794B (en) Method, apparatus and computer readable medium for uplink scheduling
CN104918277A (en) Method, device and system for carrying out frequency point configuration and data transmission
CN115884425A (en) Physical random access channel processing method and device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20210422

Address after: Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040

Patentee after: Honor Device Co.,Ltd.

Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen

Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd.

TR01 Transfer of patent right