CN102932892B - A kind of Poewr control method and device - Google Patents
A kind of Poewr control method and device Download PDFInfo
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- CN102932892B CN102932892B CN201110231491.7A CN201110231491A CN102932892B CN 102932892 B CN102932892 B CN 102932892B CN 201110231491 A CN201110231491 A CN 201110231491A CN 102932892 B CN102932892 B CN 102932892B
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The invention discloses a kind of Poewr control method and device, including：While user equipment is before secondary service cell sends random access guiding to control station or to the control station transmission random access guiding, the power information of the user equipment is sent to the control station.The present invention actively sends the real-time power information of user equipment by user equipment to control station on the serving cell, solve the problems, such as that user equipment performs random access procedure on SCell and influences data transfer and signalling on serving cell, base station side is enabled to adjust the power that user equipment transmits data and/or signaling on the serving cell, and related data and/or signaling are correctly demodulated, and then improve the effect of efficiency of transmission.
Description
Technical field
The present invention relates to mobile communication technology field, more particularly to a kind of Poewr control method and device.
Background technology
At present, wireless communication system uses electromagnetic wave and fixed or mobile wireless telecommunications user equipment (radio
Words or the notebook with wireless communication card and apparatus such as computer are referred to alternatively as user equipment) communicated.In general, exist
When carrying out radio communication, user equipment (User Equipment, abbreviation UE) is located within the wireless coverage of system, and leads to
The carrier wave crossed in radio communication channel is communicated with system.
The communication protocol/technique that the control network element of wireless communication system can arrange according to system controls other equipment.Control
Network element processed includes control station and network.Control station include but is not limited to base station (N ode B, or eNode B, including macro base station,
Micro-base station, Home eNodeB etc.), relay station (Relay Station, abbreviation RS) and user equipment, when user equipment is used as control
When standing, the user equipment can be according to pre-defined rule select in a user device as interim control station.Communication protocol/
Technology includes but is not limited to GSM (Global System for Mobile Communications, global mobile communication system
System), CDMA (Code Division Multiple Access, CDMA), EDGE (Enhanced Data Rate for
GSM Evolution, enhanced data rates for gsm evolution technology), CDMA2000, TD-SCDMA (Time Division-
Synchronous Code Division Multiple Access, TD SDMA), HSPA (High Speed
Packet Access, high-speed packet access), WCDMA (Wideband Code Division Multiple Access, broadband
CDMA), EVDO (Evolution Data Only, only evolution data), HSOPA (High Speed OFDM Packet
Access, high speed Orthogonal frequency division multiplexing packet access), WiMAX (World Interoperability for Microwave
Access, micro-wave access global inter communication), LTE (Long Term Evolution, Long Term Evolution) and LTE-A (LTE-
Advanced, Long Term Evolution-advanced).
The main process of LTE uplink power control is：
(1) UE receives TPC (transmitting power control, power control command)；
(2) UE carry out downlink wireless channel pilot received power measurement, calculate path loss (Pathloss), UE with
The parameters such as Pathloss, Uplink Shared Channel bandwidth, transport block format and TPC calculate transmission power P；If user equipment triggers
PHR (power headroom report, power headroom reporting (PHR)), and meet transmission condition, then UE is also needed to up common
Enjoy and PHR is sent on channel.
(3) after eNodeB (evolved base station) receives Physical Uplink Shared Channel and/or PHR, DCI Format 0/ are passed through
3/3A Physical Downlink Control Channel sends TPC to UE；Return and perform step (1).
UE uses dynamic resource distribution mode in system, and uses adaptive channel coding modulation mode
(adaptive modulation and coding, AMC), in LTE, UE uplink transmission power and resource allocation, coding
Modulation system is related, therefore individually power control mode is also not enough to complete the Power Control task of UE in LTE, by UE to
Resource budget information of the PHR that eNodeB is sent as PUSCH (Physical Uplink Shared Channel), up-link is carried out for eNodeB
Resource allocation provides foundation.If PHR reflects that UE has larger power headroom, then eNodeB can distribute more wireless
Resource block is to UE；If PHR reflects that UE does not have power headroom, or without more power headroom, then eNodeB
Less wireless resource block or low-order-modulated order can only be distributed to UE.
UE is less than TPC transmission frequency of the eNodeB to UE to eNodeB PHR transmission frequency in LTE system.PHR transmission
Need two steps：It is triggering first, followed by reports.UE is when cycle PHR, timer expired or path loss changes greatly
Or trigger PHR during PHR configuration/reconfigurations and report, after UE obtains the PUSCH resources for being sufficiently used for PHR, UE is to eNodeB
Report PHR.
PHR's is calculated as PH (i)=PCMAX-PUe, tx, PCMAXMaximum transmission power (configured is configured for UE
Maximum output power), PCMAX_L≤PCMAX≤PCMAX_H, PCMAXSpan mainly have two kinds of limited resources：
1) eNodeB control, such as the small covering scene in micro-base station are limited to, eNodeB can control UE maximum hair
Power is penetrated, to reduce interference of the UE to adjacent area；
2) UE useless out-of-band radiation (Out ofband emission), such as in order to meet SEM (Spectrum
Emission mask, spectrum emission mask (SEM)) and ACLR (Adjacent Channel Leakage Ratio, adjacent band leakage ratio)
Deng requirement, UE can design responsible wave filter, and for reducing out-of-band radiation, or UE reduces maximum transmission power, Qian Zhehui
Increase UE cost, latter reduce UE uplink capacity.Due to reducing transmission power (also referred to as back-off, power
Reduce, PR) method it is easy and effective, a large amount of UE can reach the requirement of out-of-band radiation when realizing using this method.But
In order to ensure UE up transmitting capacity, the unconfined reduction power of UE is not allowed, so that it cannot carry out basic upper industry
It is engaged in, the MPR (Maximum Power Reduction, peak power fallback value) allowed defined in agreement, due to out-of-band radiation
Modulation /demodulation configuration of the size with sending data, and the bandwidth taken have relation, if LTE is in agreement 36.101, by not
Same transmission bandwidth and modulation /demodulation pattern is provided with different MPR, and each UE can set actual PR values by the realization of itself,
As long as meet PR≤MPR.
It is contemplated that to after back-off, UE subtracts actual on the basis of specified transmission power Ppowerclass
Back-off value, and it also requires after considering the maximum transmission power that above-mentioned network allows, it is real to take the minimum value in both
The P on borderCMAX。
PUe, txFor the up theoretical emitted powers of UE.In LTE, PUSCH transmission power is only considered in PHR, so PUe, tx
=PUe, pusch, PUe, puschThe transmission power for being PUSCH in LTE, is defined as PUe, pusch=10log10(MPUSCH(i))+PO_PUSCH
(t)+α(t)·PL+ΔTF(i)+f (i), M thereinPUSCH(i) for PUSCH transmission bandwidth by the MCS that dispatches
(Modulation and Coding Scheme, modulating-coding form) configuration decision, PO_PUSCH(t) adjusted for open loop power control
Value, α (t) are part path loss offset, and t is semi-static variable, and PL is path loss, ΔTF(i) it is transformat offset, f (i) is
The transmission power of closed-loop power control adjusted value, i.e. PUSCH with PUSCH occupancy resource bandwidth, path loss between UE and base station and
Open loop power control is related to the configuration of closed-loop power control.Discounting for the work(brought due to power management (power management)
Rate retracts (i.e. P-MPR limitation), and PHR calculation formula are PH (i)=PCMAX-{10log10(MPUSCH(i))+PO_PUSCH(t)+α
(t)·PL+ΔTF(i)+f (i) }, wherein PHR is in units of dB, and power is in units of dBm in formula.
In LTE, discounting for back-off (the i.e. P- brought due to power management (power management)
MPR limitation), the triggering (trigger) that PHR is reported mainly has following three kinds of situations：
1) PHR forbids timer (prohibitPHR-Timer) overtime, and path loss reports relative to last PHR
When variable quantity is more than predetermined threshold dl-PathlossChange (unit is a decibel dB)；
2) PHR cycle timers (periodicPHR-Timer) time-out；
3) configuration of PHR functional entitys or reconfigure；
After PHR is triggered, when UE has uplink scheduling resource to accommodate PHR, PHR is sent to eNB by UE.
With the development of communication system and technology, to improve systematic function, carrier aggregation communication system starts to occur.Carrier wave
Polymerization technique includes various ways, and one of them is exactly carrier aggregation (Carrier Aggregation, CA).For example, in LTE-
In A systems, so-called carrier aggregation, be exactly multiple component carriers (Component Carrier, CC) can condense together for
Bigger bandwidth is provided.
In carrier aggregation system, for some user, can there are a first carrier and one or more the
Nd carrier.First carrier is generally main carrier wave, can be with carrier signaling and data, and the second carrier wave is mainly used in carrying data,
Can also bearing part signaling.Carrier wave can be divided into up-link carrier (being used to user equipment communicate to control station) and descending carrier
(being used to control station communicate to user equipment).The wireless service areas of corresponding first carrier is first service area, corresponding second carrier wave
Wireless service areas be second service area.In different systems, first carrier, first service area and the second carrier wave, the second clothes
The concept in area of being engaged in and title can all have corresponding details to define.
Such as in lte-a system, the user equipment for being configured with carrier aggregation only has a RRM in net
(Radio Resource Control, RRC) is connected.RRM connection is established/re-establishing/and when switching generation, carried
For NAI mobile messages and the service area inputted safely (Serving Cell) be referred to as Primary Served Area (Primary Cell,
PCell), i.e. first service area, and one or more secondary service area can be configured according to UE capability configuration
(Seondary Cell, SCell), i.e. second service area.Further, carrier wave corresponding to Primary Served Area is exactly first carrier,
Including descending primary component carrier (the Downlink Primary transmitted for control station to customer equipment data
Component Carrier, DL PCC) and the up primary component carrier that is communicated for user equipment to control station number
(Uplink Primary Component Carrier, UL PCC).Similar, carrier wave corresponding to secondary service area is exactly second
Carrier wave, wherein, including the descending secondary component carrier (Downlink transmitted for control station to customer equipment data
Secondary Component Carrier, DL SCC) and communicated for user equipment to control station data up secondary point
Loading gage ripple (Uplink Secondary Component Carrier, UL SCC).
In carrier aggregation system, the condition that PHR is triggered further comprises SCell activation.
In LTE system, in order to realize and keep the uplink synchronous between user equipment and base station, base station according to base station with
Propagation delay time between each user equipment sends Timing Advance (Timing Advance, referred to as TA) and gives each user equipment,
The Timing Advance that user equipment is sent according to base station shifts to an earlier date or postponed the opportunity of respective uplink, so as to make up user terminal
To the propagation delay time of base station so that the upward signal of different user devices all reaches base station within the reception window of base station.
After introducing carrier aggregation technology, user equipment may be simultaneously operated on multiple component carriers, these component carriers
Can be continuous or discontinuous on frequency band；It can be in identical frequency band, may also come from different frequencies
Band.Come from the situation of different frequency bands for the discontinuous situation of component carrier, or component carrier, because each component carrier has
There is a different transmission characteristics, the Timing Advance on each component carrier may be different；Even if each component carrier belongs to same
Frequency band and continuous on frequency band, if each component carrier is derived from different Remote Radio Unit (remote radio units, letter
Referred to as RRU), or in order to increase MPS process, each component carrier is handled via different repeaters (repeater) respectively, then
Timing Advance on each component carrier may also be different.In LTE system, UE be only operated on a carrier wave (for when
It is a carrier wave to divide dual-mode, includes up, descending a pair of carrier waves for mode of frequency division duplexing, for convenience of description, simple here
Claim a carrier wave), it is only necessary to the uplink synchronous of a up-link is safeguarded, and in carrier aggregation, UE may be simultaneously operated in
On multiple component carriers, and the TA of these component carriers is possible to different, i.e., multiple Timing Advances, (multiple TA,
Referred to as MTA).At this time, uplink synchronous can be also initiated on Scell.
Random access procedure can be accessed by Physical Downlink Control Channel signaling (PDCCH order) or UE media and controlled
Preparative layer (MAC, Medium Access Control) is initiated, alternatively, PDCCH order or wireless heterogeneous networks (RRC,
Radio Resource Control) signaling can be that UE distributes special random access preamble (Random Access
Preamble), then random access procedure is the mode for being not based on competition；Otherwise UE needs to select random access guiding, then at random
Access procedure is the mode based on competition.UE selection random access resources include selection random access guiding and physical accidental access
Time-frequency domain resources of channel (PRACH, Physical Random Access Channel) etc..For non-competing Stochastic accessing
Process, there is no contention resolved process.Either based on the random access procedure for competing or being not based on competition, first step is all
It is that user equipment sends random access guiding up by RACH (RACH, Random Access CHannel)
(Random Access Preamble)。
Under MTA scenes, if Scell initiates uplink synchronous, random access guiding is sent to eNB, and eNB is not aware that
The power for the random access guiding that Scell is sent, does not know when Scell will send random access guiding yet, it is possible to
Influence ascending power (PUSCH/PUCCH) transmission of existing serving cell.
If specifically, performing random access procedure on SCell to obtain initial TA, it will result in UE and send eNB not
Knowable preamble.Especially when initial uplink is synchronously unsuccessful, it is possible to which preamble can be sent repeatedly, so be caused
UE overall powers have instantaneous variation.If this change numerically bigger or duration is longer, for having deposited
Serving cell on data transfer or signalling can all impact, and base station if it is not known that this influence, just
Possibly can not decoding service cell uplink data transfer or signalling, accordingly, user terminal transmission related data
Power is wasted with signaling.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of Poewr control method and device, can avoid on SCell
When performing random access procedure, the transmission of data and signaling on serving cell is influenceed.
In order to solve the above technical problems, a kind of Poewr control method of the present invention, including：
User equipment is sent before secondary service cell sends random access guiding to control station or to the control station
While the random access guiding, the power information of the user equipment is sent to the control station.
Further, the power information of the user equipment is that the user equipment sends institute in the secondary service cell
Random access guiding is stated on the configured information that is influenceed caused by the power of the user equipment.
Further, the power information of the user equipment is the power margin information of the user equipment.
Further, the power headroom in the power margin information is：PHType3, c(i)=PCMAX, c(i)-Pprach, its
In, PHType3, c(i) it is power headroom；PCMAX, c(i) it is maximum transmission power；PprachFor PCMAX, cAnd PREAMBL_ (i)
RECEIVED_TARGE_POWER+PLcIn minimum value, PREAMBLE_RECEIVED_TARGET_POWER+PLcTo connect at random
Enter leading transmission power；PLcFor path loss values；Or
The power headroom is：PHType3, c(i)=PCMAX, c(i)-PLc, wherein, calculating the PCMAX, c(i) to subtract when
Go the transmission power of the random access guiding；Or
The power headroom is：PHType1, c(i)=PCMAX, c(i)-PO_PUSCH, c(j), wherein, PO_PUSCH, c(j) it is open loop
Power control adjusted value, also, calculating the PCMAX, c(i) transmission power of the random access guiding is subtracted when.
Further, the power margin information is sent to the control by the user equipment by power headroom reporting (PHR)
Stand, the trigger condition of the power headroom reporting (PHR) includes：
The user equipment finds the secondary service cell step-out, and sends the pre- of the random access guiding reaching
Before fixing time, the power headroom reporting (PHR) is sent；Or the user equipment is precalculated after sending the random access guiding
Power headroom, the variable quantity in the power headroom being calculated relative to the power headroom for not sending the random access guiding
During more than predetermined threshold, the power headroom reporting (PHR) is sent.
Further, the user equipment sends the power letter of the user equipment to the control station on the serving cell
Breath, the serving cell include main serving cell and the secondary service cell activated.
Further, the power information of the user equipment is the power information of the ascending control information of the user equipment
Mark, Stochastic accessing is sent in secondary service cell by user equipment described in control station described in the power information identification notification
After leading, whether power is enough the data and/or signalling for supporting main serving cell.
Further, a kind of output control device, including：Power information generation unit and power information transmitting element, its
In：
The power information generation unit, for generating power information；
The power information transmitting element, for secondary service cell to control station send random access guiding before or
While sending the random access guiding to the control station, the power information is sent to the control station.
Further, the power information of power information generation unit generation is power margin information, more than the power
Amount information in power headroom be：PHType3, c(i)=PCMAX, c(i)-Pprach, wherein, PHType3, c(i) it is power headroom；
PCMAX, c(i) it is maximum transmission power；PprachFor PCMAX, cAnd PREAMBLE_RECEIVED_TARGET_POWER+PL (i)cIn
Minimum value, PREAMBLE_RECEIVED_TARGET_POWER+PLcFor the transmission power of random access guiding；PLcDamaged for path
Consumption value；Or
The power headroom is：PHType3, c(i)=PCMAX, c(i)-PLc, wherein, calculating the PCMAX, c(i) to subtract when
Go the transmission power of the random access guiding；Or
The power headroom is：PHType1, c(i)=PCMAX, c(i)-PO_PUSCH, c(j), wherein, PO_PUSCH, c(j) it is open loop
Power control adjusted value, also, calculating the PCMAX, c(i) transmission power of the random access guiding is subtracted when.
Further, the power information of the power information generation unit generation is the power information mark of ascending control information
Know, by user equipment described in control station described in the power information identification notification before secondary service cell sends Stochastic accessing
After leading, whether power is enough the data and/or signalling for supporting main serving cell.
In summary, the present invention actively sends the instant of user equipment to control station on the serving cell by user equipment
Power information, solve user equipment and data transfer and signaling on random access procedure influence serving cell are performed on SCell
The problem of transmission so that base station side can adjust the power that user equipment transmits data and/or signaling on the serving cell, and correctly
Demodulate related data and/or signaling, and then improve the effect of efficiency of transmission.
Brief description of the drawings
Fig. 1 is the flow chart of Poewr control method embodiment 1 of the present invention；
Fig. 2 is the Organization Chart of output control device of the present invention.
Embodiment
User equipment before SCell sends random access guiding or is sending random access guiding in present embodiment
While serving cell to control station send user equipment power information.Serving cell includes PCell and activated
SCell。
The power information of user equipment is user equipment sends random access guiding to the user equipment i.e. in SCell
When power caused by influence configured information.
The power information of user equipment is the power margin information of user equipment or the power information mark of ascending control information
Know.
When the power information of user equipment is the power margin information of user equipment, power headroom reporting (PHR) is existed by user equipment
SCell sends random access guiding this event triggering.Up-link carrier is configured with for SCell and up-link carrier is in not synchronous
In transmit power headroom reporting, the power headroom calculating in power headroom reporting (PHR) message includes user equipment and existed the UE of state
SCell sends the influence of random access guiding.
Consider that user equipment sends the influence bag of random access guiding on SCell during power headroom is calculated
Include：Calculate PCMAXDuring PCMAXThe power needed for transmission random access guiding on SCell is subtracted, or, it is of equal value,
The power needed for transmission random access guiding on Scell is subtracted in power headroom PH.
When the power information of user equipment identifies for the power information of the ascending control information of user equipment, mark can be
One bit, particular value (setting to 0 or the put 1) expression of bit send random access guiding on SCell, and whether user equipment
By power limited.
The upstream data that the power control information that user equipment feeds back according to control station adjusted or do not adjusted on PCell passes
Defeated power and/or up signaling transmission power.
Control station includes：Macro base station, micro-base station, femto base station and relay station.
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in present embodiment can be mutually combined.
Embodiment 1：
Step 101：User equipment sends the power of the forward direction control station transmission user equipment of random access guiding in SCell
Information；
When the serving cell of user equipment only has PCell, power information is sent on PCell；When the clothes of user equipment
When business cell includes PCell and SCell, power information can be sent on PCell, can also be sent on SCell, Yong Hushe
SCell where standby power information is not that SCell that user equipment will send random access guiding.
The power information of user equipment includes user equipment and sends random access guiding influence user equipment work(in SCell
The information of rate.
The power information of user equipment is the power margin information of user equipment, and related power headroom reporting (PHR) is set by user
It is standby to send random access guiding this event triggering in SCell.Specifically, by user equipment before SCell sends Stochastic accessing
Leading the condition of this event triggering can be, after finding SCELL step-outs, when reaching the scheduled time, before will sending Stochastic accessing
Lead, for example, the scheduled time is 4 subframes (subframe) in LTE technologies.
In addition, the condition for sending random access guiding this event triggering in SCell by user equipment can also be, it is assumed that
User equipment sends random access guiding on SCell, considers that user equipment sends random access guiding to user on SCell
After the influence of plant capacity, the variable quantity of power headroom exceedes predetermined threshold.Predetermined threshold can be existing thresholding, for example,
Descending path loss change threshold value (Dlpathlosschange) or the new threshold value individually defined.
When the power information of user equipment is the power margin information for stating user equipment, the work(in power headroom reporting (PHR) message
Rate surplus, which calculates, will consider that user equipment sends influence of the random access guiding to user equipment power on SCell.
For example, consider that user equipment sends the shadow of random access guiding on SCell during power headroom is calculated
Sound includes：Including calculating PCMAXDuring PCMAXThe power needed for transmission random access guiding on SCell is subtracted, or, etc.
Valency, the power sent on SCell needed for random access guiding is subtracted in power headroom PH, wherein, power headroom can be with
It is expressed as：
PHType3, c(i)=PCMAX, c(i)-Pprach；
Pprach=min { PCMAX, c(i), PREAMBLE_RECEIVED_TARGET_POWER+PLc, and it is (maximum to set MPR
Back-off value) and A-MPR (addictive maximum power fallback value) be setting value, such as MPR=0dB, A-MPR=0dB.
Power headroom can also be expressed as PCMAXCircuit loss value is subtracted, i.e.,：PHType3, c(i)=PCMAX, c(i)-PLc, and set
MPR and A-MPR is setting value, such as MPR=0dB, A-MPR=0dB.
Can also be the PH when the user equipment calculates PUSCH PHR on SCellType1, c(i)=PCMAX, c(i)-
{PO_PUSCH, c(j)+αc(j)·PLc+fc(i) } and MPR and A-MPR are set as setting value, such as MPR=0dB, A-MPR=0dB, also
Set αc(j)=0；Reset or set fc(i)=0；
Setting more than, formula are changed into：PHTypel, c(i)=PCMAX, c(i)-PO_PUSCH, c(j), wherein, PO_PUSCH, c
(j) it is open loop power control adjusted value.
In addition, when the real-time power information of the user equipment includes the power margin information of the user equipment, triggering
This power headroom reporting (PHR) PHR's can also be existing trigger condition, such as：
1) PHR forbids timer (prohibitPHR-Timer) overtime, and path loss reports relative to last PHR
When variable quantity is more than predetermined threshold dl-PathlossChange (unit is a decibel dB)；
2) PHR cycle timers (periodicPHR-Timer) time-out；
3) configuration of PHR functional entitys or reconfigure；
4) SCell is activated, i.e., when existing trigger condition triggers user equipment to report PHR, in the PHR of correlation just
Influence caused by considering back-off value caused by sending random access guiding.
After UE triggers PHR, PHR can be retransmited until there is ascending resource distribution.I.e. PHR triggering not necessarily and
PHR's is sent in unit at the same time, because PHR priority ratio general data is high, can preferentially take ascending resource.
In order to ensure that the transmission random access guiding of UE triggerings can not influence the uplink of serving cell, UE can be
Send it is random it is leading before all PHR on all include the power information, rather than include institute on specific one PHR
State power information.
Step 102：User equipment receives the power control information of control station feedback, adjusts or does not adjust on PCell
Transmitting uplink data power and/or up signaling transmission power.
If transmitting uplink data power and/or up letter on power control information instruction user equipment adjustment PCell
Transimission power is made, then the transmitting uplink data power on user equipment adjustment PCell and/or up signaling transmission power；If
Power control information instruction user equipment need not adjust transmitting uplink data power and/or up signalling work(on PCell
Rate or not comprising related power adjustment information, then user equipment need not adjust existing transmitting uplink data power on PCell
And/or up signaling transmission power.
Embodiment 2：
User equipment sends the work(of user equipment before SCell sends random access guiding in serving cell to control station
Rate information.
The power information of user equipment includes the power information mark of the ascending control information of the user equipment.
It is described when the power information of user equipment includes the power information mark of the ascending control information of the user equipment
Power information can be power limited information, such as (be put with a bit identification in up signaling, the particular value of this bit
0 or put and 1) represent that the power of user equipment can be not enough to support existing if sending random access guiding in SCell
PCell upstream datas or signalling, i.e. power limited.
The power information of user equipment may be embodied among the reserved bit of various upward signals, such as sounding
Reference signal (SRS), or channel quality indicator (CQI).
User equipment receives the power control information of control station feedback, if power control information instruction user equipment adjusts
Transmitting uplink data power and/or up signaling transmission power on PCell, then user equipment adjustment PCell on upper line number
According to transimission power and/or up signaling transmission power.If power control information instruction user equipment need not be adjusted on PCell
Transmitting uplink data power and/or up signaling transmission power or not comprising related power adjustment information, then user equipment without
Existing transmitting uplink data power and/or up signaling transmission power on PCell need to be adjusted.
Embodiment 3 and embodiment 4 have identical signaling procedure with embodiment 1 and embodiment 2 respectively.It is unique it is different just
It is that in embodiment 3 and embodiment 4, user equipment is while SCell sends random access guiding in serving cell to control
Stand and send the power information of user equipment, rather than before SCell sends random access guiding in serving cell to control station
Send the power information of user equipment.
Send simultaneously and refer to send in the chronomere of same up transmission, for example, same frame or same height
Frame.The meaning of embodiment 3 and 4 is, can be with if having no chance before random access guiding is sent notice control station in time
Reduce as possible and send the random leading influence for system.
Fig. 2 is the output control device that present embodiment provides, including：Power information generation unit and power information are sent
Unit, wherein：
Power information generation unit, for generating power information；
Power information transmitting element, for before secondary service cell sends random access guiding to control station or to control
While system station sends random access guiding, to control station power information.
The power information of power information generation unit generation is power margin information, the power headroom in power margin information
For：PHType3, c(i)=PCMAX, c(i)-Pprach, wherein, PHType3, c(i) it is power headroom；PCMAX, c(i) it is emission maximum work(
Rate；PPRAChFor PCMAX, cAnd PREAMBLE_RECEIVED_TARGET_POWER+PL (i)cIn minimum value, PREAMBLE_
RECEIVED_TARGET_POWER+PLcFor the transmission power of random access guiding；PLcFor path loss values；Or power headroom
For：PHType3, c(i)=PCMAX, c(i)-PLc, wherein, calculating PCMA, c(i) transmission power of random access guiding is subtracted when；
Or power headroom is：PHTypel, c(i)=PCMAX, c(i)-PO_Pusch, c(j), wherein, PO_pusch, c(j) adjusted for open loop power control
Value, also, calculating PCMAX, c(i) transmission power of random access guiding is subtracted when.
The power information of power information generation unit generation identifies for the power information of ascending control information, is believed by power
Identification notification control station user equipment is ceased after secondary service cell sends random access guiding, and whether power is enough to support main clothes
The data and/or signalling for cell of being engaged in.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (7)
- A kind of 1. Poewr control method, it is characterised in that including：User equipment is before secondary service cell sends random access guiding to control station or to described in control station transmission While random access guiding, the power information of the user equipment is sent to the control station；The power information of the user equipment is the user equipment before the secondary service cell sends the Stochastic accessing Lead the configured information on being influenceed caused by the power of the user equipment；The power information of the user equipment identifies for the power information of the ascending control information of the user equipment, by described After secondary service cell sends random access guiding, power is user equipment described in control station described in power information identification notification The no data for being enough to support main serving cell and/or signalling.
- 2. the method as described in claim 1, it is characterised in that：The power information of the user equipment is the user equipment Power margin information.
- 3. method as claimed in claim 2, it is characterised in that：Power headroom in the power margin information is：PHtype3,c(i)=PCMAX,c(i)-Pprach, wherein, PHtype3,c(i) it is Power headroom；PCMAX,c(i) it is maximum transmission power；PprachFor PCMAX,cAnd PREAMBLE_RECEIVED_TARGET_ (i) POWER+PLcIn minimum value, PREAMBLE_RECEIVED_TARGET_POWER+PLcFor the transmitting work(of random access guiding Rate；PLcFor path loss values；OrThe power headroom is：PHtype3,c(i)=PCMAX,c(i)-PLc, wherein, calculating the PCMAX,c(i) institute is subtracted when State the transmission power of random access guiding；OrThe power headroom is：PHtype1,c(i)=PCMAX,c(i)-PO_PUSCH,c(j), wherein, PO_PUSCH,c(j) adjusted for open loop power control Whole value, also, calculating the PCMAX,c(i) transmission power of the random access guiding is subtracted when.
- 4. method as claimed in claim 2, it is characterised in that：The power margin information is sent to the control station by the user equipment by power headroom reporting (PHR), more than the power The trigger condition of amount report includes：The user equipment finds the secondary service cell step-out, and in the pre- timing for reaching the transmission random access guiding Between before, send the power headroom reporting (PHR)；Or the user equipment precalculates the work(after sending the random access guiding Rate surplus, exceed in the power headroom being calculated relative to the variable quantity for the power headroom for not sending the random access guiding During predetermined threshold, the power headroom reporting (PHR) is sent.
- 5. the method as described in claim 1, it is characterised in that：The user equipment sends the power information of the user equipment to the control station on the serving cell, and the service is small Area includes main serving cell and the secondary service cell activated.
- A kind of 6. output control device, it is characterised in that including：Power information generation unit and power information transmitting element, its In：The power information generation unit, for generating power information；The power information transmitting element, for before secondary service cell sends random access guiding to control station or to institute While stating the control station transmission random access guiding, the power information is sent to the control station；The power information of the power information generation unit generation identifies for the power information of ascending control information, passes through the work( Rate message identification notifies power information transmitting element described in the control station after secondary service cell sends random access guiding, Whether power is enough the data and/or signalling for supporting main serving cell.
- 7. device as claimed in claim 6, it is characterised in that：The power information of power information generation unit generation is power margin information, the power in the power margin information Surplus is：PHtype3,c(i)=PCMAX,c(i)-Pprach, wherein, PHtype3,c(i) it is power headroom；PCMAX,c(i) it is emission maximum Power；PprachFor PCMAX,cAnd PREAMBLE_RECEIVED_TARGET_POWER+PL (i)cIn minimum value, PREAMBLE_ RECEIVED_TARGET_POWER+PLcFor the transmission power of random access guiding；PLcFor path loss values；OrThe power headroom is：PHtype3,c(i)=PCMAX,c(i)-PLc, wherein, calculating the PCMAX,c(i) institute is subtracted when State the transmission power of random access guiding；OrThe power headroom is：PHtype1,c(i)=PCMAX,c(i)-PO_PUSCH,c(j), wherein, PO_PUSCH,c(j) adjusted for open loop power control Whole value, also, calculating the PCMAX,c(i) transmission power of the random access guiding is subtracted when.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110231491.7A CN102932892B (en) | 2011-08-12 | 2011-08-12 | A kind of Poewr control method and device |
| PCT/CN2012/077586 WO2013023496A1 (en) | 2011-08-12 | 2012-06-27 | Power control method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110231491.7A CN102932892B (en) | 2011-08-12 | 2011-08-12 | A kind of Poewr control method and device |
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| CN102932892A CN102932892A (en) | 2013-02-13 |
| CN102932892B true CN102932892B (en) | 2018-03-23 |
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| CN201110231491.7A Active CN102932892B (en) | 2011-08-12 | 2011-08-12 | A kind of Poewr control method and device |
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| CN104105192A (en) | 2013-04-03 | 2014-10-15 | 上海贝尔股份有限公司 | Power headroom report and device supporting multi-link connection |
| JP6530380B2 (en) | 2013-05-02 | 2019-06-12 | サムスン エレクトロニクス カンパニー リミテッド | Method and apparatus for uplink power control in a wireless communication system |
| JP6199606B2 (en) * | 2013-05-29 | 2017-09-20 | 株式会社Ｎｔｔドコモ | Wireless communication system and mobile terminal device |
| CN104796940B (en) * | 2014-01-20 | 2019-08-23 | 中兴通讯股份有限公司 | Power headroom reporting (PHR) report method and device |
| US10448374B2 (en) * | 2014-03-21 | 2019-10-15 | Samsung Electronics Co., Ltd. | Power headroom report method of dual-connectivity UE in mobile communication system |
| WO2015168950A1 (en) * | 2014-05-09 | 2015-11-12 | 华为技术有限公司 | Ue, base station and method for coordinating uplink power |
| CN107409334B (en) * | 2015-03-27 | 2020-07-24 | 阿尔卡特朗讯 | Terminal, terminal operation method, transmission coordinator device, base station, and operation method of transmission coordinator device |
| CN109996321B (en) * | 2017-12-29 | 2021-08-17 | 中兴通讯股份有限公司 | Uplink transmission power control method, device and computer storage medium |
| CN110012531B (en) * | 2018-01-04 | 2020-07-21 | 维沃移动通信有限公司 | PHR triggering method, terminal equipment and network equipment |
| CN110859009B (en) * | 2018-08-24 | 2022-02-18 | 维沃移动通信有限公司 | Uplink priority occupation indication method and equipment |
| WO2020082394A1 (en) * | 2018-10-27 | 2020-04-30 | Oppo广东移动通信有限公司 | Random access method, terminal device and network device |
| CN111278099B (en) * | 2019-01-18 | 2021-04-30 | 维沃移动通信有限公司 | Power control method, terminal and network side equipment |
| CN111953396B (en) * | 2019-05-17 | 2023-12-29 | 中兴通讯股份有限公司 | Transmission configuration method, device, communication node and communication equipment |
| CN113873630B (en) * | 2020-06-30 | 2023-07-11 | 华为技术有限公司 | Uplink power control method and terminal |
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| CN102932892A (en) | 2013-02-13 |
| WO2013023496A1 (en) | 2013-02-21 |
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Effective date of registration: 20201224 Address after: 225400 Hongqiao Industrial Park, Taixing City, Jiangsu Province Patentee after: JIANGSU SHENGRI MACHINERY EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 518057 Ministry of justice, Zhongxing building, South Science and technology road, Nanshan District hi tech Industrial Park, Shenzhen, Guangdong Patentee before: ZTE Corp. |