CN102892186B - Method and device for determining physical downlink control channel resource - Google Patents
Method and device for determining physical downlink control channel resource Download PDFInfo
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- CN102892186B CN102892186B CN201110202465.1A CN201110202465A CN102892186B CN 102892186 B CN102892186 B CN 102892186B CN 201110202465 A CN201110202465 A CN 201110202465A CN 102892186 B CN102892186 B CN 102892186B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1621—Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1825—Adaptation of specific ARQ protocol parameters according to transmission conditions
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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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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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
- H04W52/48—TPC being performed in particular situations during retransmission after error or non-acknowledgment
Abstract
The invention provides a method and a device for determining PDCCH (physical downlink control channel) resource. The method comprises the steps of adjusting the control channel power of UE (user equipment) and CCE (control channel element) convergence degree according to whether UE receives information transmitted by the base station; when receiving ACK or NACK fed back by the UE, regarding that UE receives the information transmitted by the base station, regulating down the power of control channel and CCE convergence degree of UE; when UE feeds back DTX (discontinuous transmission), regarding that UE does not receive the information transmitted by the base station, and regulating up the power of control channel and CCE convergence degree of UE. Therefore, the power of the control channel and the reasonability of the CCE convergence degree adjustment and the accuracy are ensured.
Description
Technical field
The present invention relates to communication technique field, more particularly to a kind of Physical Downlink Control Channel (Physical Downlink
Control Channel, PDCCH) resource determination method and device.
Background technology
Third generation partner program (The 3rd Generation Partnership Project, 3GPP) is drilled for a long time
In entering (Long Term Evolution, LTE) system, base station according to the transmission mode and transmission plan of user terminal (UE),
Select to send various Downlink Control Information (Downlink Control Information, DCI) Format Types for UE, and to
The various DCI format types that UE sends are carried in PDCCH and are transmitted.
In the 10ms wireless frame structures of LTE definition, 1ms descending sub frames and a Transmission Time Interval
(Transmission Time Interval, TTI) is corresponding, and PDCCH only takes up time domain and goes forward n OFDM
(Orthogonal Frequency Division Multiplexing, OFDM) symbol, removes other channel occupancies on frequency domain
Remaining frequency band after frequency band, wherein other channels include：Physical format indicates channel (Physical Control Format
Indicator Channel, PCFICH), Physical HARQ Indicator Channel (Physical HARQ Indicator Channel,
PHICH) etc..Therefore in each of the lower the reserved running time-frequency resource of only limited quantity is available for PDCCH to use in row subframe.
The least unit of PDCCH time-frequency resource allocatings be control channel element (Control Channel Element,
CCE), a CCE includes 9 resource unit groups (Resource Element Group, REG), i.e., 36 Resource Units
(Resource Element, RE).PDCCH using QPSK (Quadrature Phase Shift Keying,
QPSK) it is modulated, depends on code check change adaptive channel change, and code check change and the CCE degree of polymerization (the i.e. money of channel occupancy
The quantity in source) correspondence, CCE has four kinds of degree of polymerization in agreement, and respectively 1,2,4,8.
A kind of method of determination number of channel control blocks is proposed in the prior art, is needed in the method according to channel matter
Amount instruction (Channel Quality Indicator, CQI) information, determines that each optional PDCCH can hold in a radio frames
The maximum number bits of load, according to the maximum number bits that each PDCCH for determining can be carried, and the control letter for being currently needed for transmitting
The data volume of order, determines the mass parameter of each PDCCH, by quality ginseng maximum in the mass parameter of all PDCCH for determining
Number is compared with threshold value, and according to comparative result a PDCCH is selected in all optional PDCCH from a radio frames, with
And determine the corresponding control channel numbers of blocks of PDCCH of selection.
According to the scheme disclosed in prior art, it is known that estimated using the channel quality of Traffic Channel
The channel quality of meter control channel PDCCH, so that it is determined that the corresponding CCE degree of polymerization.And the radiation pattern and work(of Traffic Channel
The schemes such as the rate control difference very big with the presence of control channel, causes between the quality of Traffic Channel and the quality of control channel
Larger difference is there may be, therefore the direct channel quality information with Traffic Channel estimates that the quality of control channel can be present very
Big estimated bias, cause the level of the CCE degree of polymerization of determination improper, and PDCCH is not as Traffic Channel and there may be
The merging gain being transmitted several times, hence with the channel quality evaluation control channel of Traffic Channel the biography of PDCCH is not ensured that
Defeated performance.
In addition, PDCCH resource is running time-frequency resource except the CCE degree of polymerization, also including power resource.Do not have in the prior art
The scheme of the distribution of the power resource of open PDCCH.And when the UE numbers in system are more, data and control resource are mainly received
It is limited to PDCCH, so if reasonably adjusting power, UE can be made using the less CCE degree of polymerization, so as to alleviate PDCCH's
Running time-frequency resource pressure, improves the utilization rate of data resource.
The content of the invention
The invention provides a kind of determination method and device of PDCCH resource, the method is used to solve in prior art
The determination method of PDCCH resource is unreasonable, causes the level of the CCE degree of polymerization of determination improper, and lacks Power Control
Problem.
The present invention provides the determination method of physical downlink control channel PDCCH resource, and methods described includes：
Base station judges to obtain the moment in uplink feedback information, if get the mixed automatic retransfer of user terminal UE feedbacks
Request HARQ；
When the HARQ for receiving the UE feedbacks is to confirm response ACK or negative response NACK, and the ACK or NACK feeds back correspondence
When the current control channel power and the control channel unit CCE degree of polymerization of the UE, the control channel power and CCE for lowering the UE gathers
Right at least one；
When receive UE feedback for discontinuous transmission DTX, and the DTX feed back to should UE control channel power and
During the CCE degree of polymerization, the control channel power of the UE and at least one of the CCE degree of polymerization are raised.
The present invention provides a kind of determining device of physical downlink control channel PDCCH resource, and described device includes：
Judge module, for judging to obtain the moment in uplink feedback information, if get the mixed of user terminal UE feedbacks
Close HARQ HARQ；
First adjusting module, for being confirmation response ACK or negative response NACK as the HARQ for receiving the UE feedbacks, and should
ACK or NACK feed back to should UE current control channel power and during the control channel unit CCE degree of polymerization, lower the control of the UE
At least one of channel power processed and the CCE degree of polymerization；
Second adjusting module, for being discontinuous transmission DTX as the HARQ for receiving the UE feedbacks, and the DTX feedback correspondences
When the control channel power and the CCE degree of polymerization of the UE, the control channel power of the UE and at least one of the CCE degree of polymerization are raised.
The invention provides a kind of determination method and device of PDCCH resource, due to whether being connect according to UE in the present invention
The information that the base station sends is received, the control channel power and the CCE degree of polymerization of UE are adjusted, when receiving UE feedbacks
During ACK or NACK, it is believed that UE have received the information of base station transmission, the power of control channel and the CCE degree of polymerization of UE are lowered, when
During the DTX of UE feedbacks, it is believed that UE does not receive the information of base station transmission, the CCE for needing the power and UE for raising control channel gathers
It is right, so as to ensure the reasonability of control channel power and the adjustment of the CCE degree of polymerization, and accuracy.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, this
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
The determination process schematic of the PDCCH resource that Fig. 1 is provided for the present invention；
The detailed determination process schematic diagram of the PDCCH resource that Fig. 2 is provided for the present invention；
The structural representation of the determining device of the PDCCH resource that Fig. 3 is provided for the present invention.
Specific embodiment
In order that the technical problem to be solved, technical scheme and beneficial effect are clearer, clear, below tie
Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Time-domain resource and the reasonability of power resource in order to ensure the PDCCH of determination of the invention, and accuracy, there is provided
A kind of determination method and device of PDCCH resource.Wherein, in the present invention the PDCCH resource includes：The time-frequency money of PDCCH
Source, i.e. the CCE degree of polymerization, and power resource.
The process schematic that Fig. 1 determines for the PDCCH resource that the present invention is provided, the process is comprised the following steps：
S101：Base station judges to obtain the moment in uplink feedback information, if get the mixing of user terminal (UE) feedback
HARQ (Hybrid Automatic Repeat Request, HARQ).
Specifically, in the present invention base station may receive UE feedacks at the uplink feedback information moment, also may be used
UE feedacks can not be received, when base station receives UE feedacks, judges whether the information for receiving is HARQ,
Subsequent step is carried out when the information is HARQ, otherwise, the determination process of PDCCH resource is not carried out.
S102：When the HARQ for receiving the UE feedbacks is confirmation response (Acknowledgement, ACK) or negative response
(Negative Acknowledgement, NACK), and the ACK or NACK feed back to should UE current control channel power and
During the control channel unit CCE degree of polymerization, the control channel power of the UE and at least one of the CCE degree of polymerization are lowered.
Wherein, in the present invention for the HARQ information whether ACK, nack message, or whether it is DTX using different
Resource determination process.
When the HARQ information is ACK or nack message, the control channel power and the CCE degree of polymerization of the UE are lowered at least
One kind includes：Judge whether current be CCE degree of polymerization adjustment point；
When the current point as the adjustment of the CCE degree of polymerization is judged, lower the CCE degree of polymerization of the UE and control channel power is carried out
Compensation,
When the current point as power adjustment is judged, the control channel power of the UE is lowered.
S103：When receive UE feedback for discontinuous transmission (Discontinuous Transmission, DTX), and
The DTX feed back to should UE control channel power and during the CCE degree of polymerization, raise the control channel power and CCE polymerization of the UE
At least one of degree.
When the HARQ information is DTX, at least one of the control channel power and the CCE degree of polymerization that raise the UE includes：
Judge whether current be CCE degree of polymerization adjustment point；
When the current adjustment point as the CCE degree of polymerization is judged, raising the CCE degree of polymerization of the UE and switching judgement according to enable is
No adjustment control channel power, when switch enable is enabled, raises control channel power,
When the current point as power adjustment is judged, the control channel power of the UE is raised.
In addition, in the present invention when base station receives the ACK or nack message of UE transmissions, then base station thinks that UE is received
Its information sent at the descending scheduling moment, to illustrate the degree of polymerization of the now power of the UE control channels and CCE can protect
The transmission of card data, in order to effectively utilize resource, the control channel of UE is lowered in base station under the transmission performance for ensureing PDCCH
At least one of power and the CCE degree of polymerization.Meanwhile, when the base station receives the DTX of UE transmissions, base station thinks that UE does not connect
Its information sent at the descending scheduling moment is received, the transmission performance that cannot now ensure PDCCH is illustrated, needs to raise UE controls
At least one of the degree of polymerization of channel power and CCE.
When at least one for determining whether the control channel power to UE and the CCE degree of polymerization is adjusted, also to judge
Whether the ACK/NACK information or DTX information correspond to the current control channel power of the UE and the CCE degree of polymerization.
Control channel power adjustment point is provided with the present invention and the CCE degree of polymerization adjusts point, be the CCE degree of polymerization when currently
Adjustment point, and when meeting some requirements, then the adjustment of the CCE degree of polymerization and control channel power is carried out, when current for control letter
During road power adjustment point, then the control channel power of UE is adjusted.
The detailed determination process schematic diagram of the PDCCH resource that Fig. 2 is provided for the present invention, the process is comprised the following steps：
S201：Base station judges to obtain the moment in uplink feedback information, if get the mixing of user terminal UE feedbacks certainly
Dynamic repeat requests HARQ, when judged result is to be, carry out step S202, otherwise, carry out step S209.
S202：Judge whether the HARQ is ACK (or NACK) or DTX, the HARQ is ACK or NACK when interpretation, is walked
Rapid S203, when the HARQ is DTX, carries out step S206.
S203：When the HARQ for receiving the UE feedbacks is ACK or NACK, judge whether current be CCE degree of polymerization adjustment point, when
Judged result, when currently point is adjusted for power, carries out step S205 when being, to carry out step S204, otherwise, carries out step
S209。
S204：Lower the CCE degree of polymerization of the UE and control channel power is compensated.
It is specific in the present invention, lower the UE the CCE degree of polymerization and control channel power is compensated including：
Whether the control channel power for judging current UE gathers less than the first power threshold for setting, and the UE current CCE
It is right in the corresponding CCE degree of polymerization interval range of first power threshold；When the control channel power of the UE is less than setting
The first power threshold, and the UE current CCE degree of polymerization be located at the corresponding CCE degree of polymerization interval range of first power threshold
When interior, then CCE statistics are adjusted to into current CCE statistics adjusting step sum corresponding with the non-DTX of setting；Judge adjustment
Whether the CCE statistics afterwards are not more than the downward CCE degree of polymerization threshold values of setting；The CCE statistics after adjustment are not
During more than the downward CCE degree of polymerization threshold values for setting, then the CCE degree of polymerization is adjusted to the half of the current CCE degree of polymerization, while
CCE statistics are reset, and according to UE current power, the final CCE degree of polymerization for determining the UE after adjustment；According to setting
The corresponding power back-off step-length of the CCE degree of polymerization is lowered, the control channel power of the UE is compensated.
S205：Lower the control channel power of the UE.
Lowering the control channel power of the UE includes：According to the whole step-length of the power decreasing for arranging, the control of the UE is lowered
Channel power.
S206：When receive UE feedback for discontinuous transmission DTX, judge whether current be CCE degree of polymerization adjustment point, when
Judged result, when currently point is adjusted for power, carries out step S208 when being, to carry out step S207, otherwise, carries out step
S209。
S207：Raise the CCE degree of polymerization of the UE and judge whether to the adjustment of control channel power.
Specifically, the CCE degree of polymerization and adjustment control channel power of the UE are raised in the present invention to be included：
Whether the control channel power for judging current UE gathers more than the second power threshold for setting, and the UE current CCE
It is right in the corresponding CCE degree of polymerization interval range of second power threshold；When the control channel power of the UE is more than setting
The second power threshold, and the UE current CCE degree of polymerization be located at the corresponding CCE degree of polymerization interval range of second power threshold
When interior, then CCE statistics are adjusted to into current CCE statistics adjusting step sum corresponding with the DTX of setting；After judging adjustment
The CCE statistics whether more than the rise CCE degree of polymerization threshold values of setting；The CCE statistics after adjustment are more than setting
During fixed rise CCE degree of polymerization threshold values, then the CCE degree of polymerization is adjusted to 2 times of the current CCE degree of polymerization, while CCE is united
Metering resets, and according to UE current power, the final CCE degree of polymerization for determining the UE after adjustment；According to whether enabling switch
Enable, judge whether to power adjustment, when switch enable is enabled, then according to the corresponding work(of the rise CCE degree of polymerization of setting
Rate compensates step-length, adjusts the control channel power of the UE.
S208：Raise the control channel power of the UE.
Raising the control channel power of the UE includes：According to the step-length adjusted on the power for arranging, the control of the UE is raised
Channel power.
S209：The determination of PDCCH resource is not carried out.
Illustrate with reference to specific embodiment.In the present invention for the dynamic model of the power for constraining the RE of PDCCH
Enclose, be relative to the power of cell reference signals (Reference Signals, RS)：[D2_MIN, D2_MAX] dB.And pin
Power threshold D2 (i) is arranged to UE, the span of i is 1～3 integer.The CCE degree of polymerization thresholdings of each power points are set,
Corresponding CCE degree of polymerization L (0) of D2 (1) power points～L (1), corresponding CCE degree of polymerization L (1) of D2 (2) power～L (2), D2 (3)
Corresponding CCE degree of polymerization L (2) of power～L (3), wherein L (i) is less than L (i+1), and the span of L (i) is { 1,2,4,8 }, D2
I the span of () is [D2_MIN, D2_MAX], D2 (i) is less than D2 (i+1).
Base station judges currently to obtain the moment as up (UL) feedback information, and obtaining moment judgement in the uplink feedback information is
The no HARQ for getting UE feedbacks, for the UE of each feedback HARQ the determination of PDCCH resource is carried out.
If the HARQ of the UE feedbacks is ACK or NACK, and the control channel power P of the current UEUE_iWith CCE polymerizations
Degree LCCE_i, correspond to the current control channel power of the UE and the CCE degree of polymerization, then judge to be needed to the CCE degree of polymerization and control
Channel power processed is adjusted, and still only control channel power is adjusted.
When currently point is adjusted for the CCE degree of polymerization, because base station is provided with power threshold D2 (i) for UE, and refer to
The power P of signalRSIt will also be appreciated that being provided with the whole step-length of power decreasing in the present invention in additionTherefore at this
First power threshold of bright middle setting can be expressed as Carry out respectively for different power points i
Judge PUE_iWhether the first power threshold is less than And according to the value of current i, judge CCE
Degree of polymerization LCCE_iWhether it is located in the corresponding CCE degree of polymerization interval range of the first power threshold, that is, judges (L (i-1)<LCCE_i<
=L (i)).WhereinThe BLER desired values of control channel are BLERt。
When the current control channel power of the UEAnd the CCE polymerizations of UE
Degree LCCE_iMeet (L (i-1)<LCCE_i<=L (i)) when, then adjust CCE statistic Δ CCEi, by Δ CCEiIt is adjusted to current
CCE statistic Δ CCEiAdjusting step corresponding with the non-DTX of settingSum, i.e.,
According to the CCE statistic Δ CCE after adjustmenti, interpretation Δ CCEiWhether the downward CCE polymerization of setting is not more than
Degree threshold value, the downward CCE degree of polymerization threshold value that wherein this sets judges Δ CCE as Thr1, that is,iWhether Thr1 is not more than, when
ΔCCEi<During=Thr1, then by CCE degree of polymerization L 'CCE_iIt is adjusted to current CCE degree of polymerization LCCE_iHalf, i.e. L'CCE_i=
LCCE_i/ 2, afterwards by CCE statistic Δ CCEiSet to 0.
Afterwards, according to UE current control channel power, it is final determine the UE after adjustment the degree of polymerization when, when judging UE
Current control channel power PUE_iWith PRSWhen+D2 (i) is equal, i.e. PUE_i==PRS+ D2 (i), then the CCE degree of polymerization after adjusting
L'CCE_iFor max (L (i-1), L'CCE_i)。
When power adjustment is carried out, first according to the corresponding power back-off step-length of the downward CCE degree of polymerizationTo working as
The control channel power of front UE is compensated, the control channel power P of the UE after compensation 'UE_iFor the control channel work(of current UE
Rate power back-off step-length corresponding with the CCE degree of polymerization is loweredAfterwards, i.e.,Root afterwards
Determine the control channel power of the UE after adjustment, the restriction for being limited to determine according to different UE of the wherein UE according to the restriction of UE
Information, for example, can be the restricted information determined according to different UE types, determine the control channel power of the UE after the adjustment
P”UE_iFor max (min (PRS+ D2_MAX, P'UE_i), PRS+D2_MIN)
If in addition, in the present invention under the CCE degree of polymerization adjust a grade, set power back-off asThen need
MeetThen
The control channel power P of the UE after adjustmentUE_iFor P "UE_i, CCE degree of polymerization L after adjustmentCCE_iFor L'CCE_i, base station
Now to should be UE current control channel power and the CCE degree of polymerization be updated, when determining so as to follow-up PDCCH resource
Use.
When currently for control channel power adjustment point when, then only the control channel power of UE is adjusted, first basis
The whole step-length of the power decreasing of settingFirst time adjustment is carried out to the control channel power of the UE, after this is adjusted for the first time
Control channel power for current UE control channel power and the whole step-length sum of power decreasing for arranging.Afterwards according to max
(min(PRS+ D2_MAX, P'UE_i), PRS+ D2_MIN) determine adjustment after UE control channel power P "UE_i, i.e. now P "UE_i
=max (min (PRS+ D2_MAX, P'UE_i), PRS+ D2_MIN), and keep the CCE degree of polymerization constant.
The control channel power P of the UE after adjustmentUE_iFor P "UE_i, CCE degree of polymerization L after adjustmentCCE_iFor L 'CCE_i, base station
The control channel power P of the UE that now itself is preservedUE_iAnd CCE degree of polymerization LCCE_iIt is updated, so as to follow-up PDCCH
Use when resource determines.
When base station judges the HARQ of the UE feedbacks for DTX, and the control channel power P of the current UEUE_iWith CCE polymerizations
Degree LCCE_iWhen the control channel power and the corresponding identical CCE degree of polymerization of the UE currently preserved with base station itself, need to improve UE
Control channel power and at least one of the CCE degree of polymerization.
When currently point is adjusted for the CCE degree of polymerization, because base station is provided with power threshold D2 (i) for UE, and refer to
The power P of signalRSIt will also be appreciated that being provided with the step-length adjusted on power in the present invention in additionTherefore in the present invention
Second power threshold of setting can be expressed as PRS+D2(i)-Judgement P is carried out respectively for different power points iUE_iIt is
It is no to be more than the second power threshold And according to the value of current i, judge CCE degree of polymerization LCCE_i
Whether it is located in the corresponding CCE degree of polymerization interval range of the second power threshold, that is, judges (L (i-1)<=LCCE_i<L(i))。
When the current control channel power of the UEAnd the CCE polymerizations of UE
Degree LCCE_iMeet (L (i-1)<=LCCE_i<L (i)) when, then adjust CCE statistic Δ CCEi, by Δ CCEiIt is adjusted to current
CCE statistic Δ CCEiAdjusting step corresponding with the DTX of settingSum, i.e.,According to tune
The CCE statistic Δ CCE after wholei, interpretation Δ CCEiWhether the rise CCE degree of polymerization threshold value of setting is more than, and wherein this sets
Fixed rise CCE degree of polymerization threshold value is Thr, that is, judge Δ CCEiWhether Thr is more than, as Δ CCEi>During Thr, then CCE is gathered
Right L 'CCE_iIt is adjusted to current CCE degree of polymerization LCCE_i2 times, i.e. L 'CCE_i=2LCCE_i。
Afterwards, according to UE current control channel power, it is final determine the UE after adjustment the degree of polymerization when, when judging UE
Current control channel power PUE_iWith PRSWhen+D2 (i) is equal, i.e. PUE_i==PRS+ D2 (i), then the CCE degree of polymerization after adjusting
L’CCE_iFor min (L (i), L 'CCE_i)。
If also, in the present invention in the CCE degree of polymerization adjust a grade, set power back-off asThen need
MeetThereforeN represents the performance difference between adjacent polymeric degree.Power back-off whether is carried out when to adjust on CCE and enables switch, 1 enables, and 0 does not enable.
Carry out power adjust when, first according to judge this carry out the enable of power back-off switch whether enable, that is, judgeWhether it is 1, when thisWhen, i.e., when the enable switch is enabled, according to the rise CCE for arranging
The corresponding power back-off step-length of the degree of polymerizationThe control channel power of current UE is compensated, the UE's after compensation
Control channel power P 'UE_iFor the control channel power power back-off step-length corresponding with the CCE degree of polymerization is raised of current UEAfterwards, i.e.,
Afterwards, the control channel power of the UE after adjustment is determined according to the restriction of UE, the wherein UE's is limited to according to not
The restricted information that same UE determines, for example, can be the restricted information determined according to different UE types, after determining the adjustment
The control channel power P of UE "UE_iFor max (min (PRS+ D2_MAX, P'UE_i), PRS+ D2_MIN), i.e., the UE after now adjusting
Control channel power PUE_i=P "UE_i, CCE degree of polymerization L after the adjustmentCCE_i=L'CCE_i。
When this carries out the enable switch of power back-off to be not enabled on,For 0 when, then be not controlled channel
Power is adjusted, and the control channel power of the UE is PUE_i, CCE degree of polymerization L after the adjustmentCCE_i=L 'CCE_i。
When currently for control channel power adjustment point when, then only the control channel power of UE is adjusted, first basis
The step-length adjusted on the power of settingFirst time adjustment is carried out to the control channel power of the UE, after this is adjusted for the first time
Control channel power for current UE control channel power with arrange power on adjust step-length sum, afterwards according to max
(min(PRS+ D2_MAX, P'UE_i), PRS+ D2_MIN) determine adjustment after UE control channel power P "UE_i, i.e. now P "UE_i
=max (min (PRS+ D2_MAX, P'UE_i), PRS+ D2_MIN), and keep the CCE degree of polymerization constant.
The control channel power P of the UE after adjustmentUE_iFor P "UE_i, CCE degree of polymerization LCCE_iKeep constant, base station is now right
To should be UE current control channel power and the CCE degree of polymerization be updated, use when determining so as to follow-up PDCCH resource.
According to said method, the control channel power and the CCE degree of polymerization of each UE are adjusted.
Specifically, the Power Dynamic Range of the RE of PDCCH is constrained in the present invention, relative to the power of cell RS：[D2_
MIN, D2_MAX] dB.Two power thresholds D2' and D2 are arranged to user " (D2' and D2 " be emulation or the tactful value for determining), with
And CCE degree of polymerization thresholdings, for the power points of the D2' correspondence CCE degree of polymerization 1～L1 adjustment, for D2 " correspondence CCE degree of polymerization L1
The power points of～L2 adjustment.The span [D2_MIN, D2_MAX] of the power difference adjustment of UE, i.e. performance number span：
[PRS+D2_MIN,PRS+D2_MAX]。
And if in the present invention in the CCE degree of polymerization adjust a grade, set power back-off asThen need
MeetThereforeIf adjusting a grade under the CCE degree of polymerization, set
Power back-off isThen need to meetThen
When the HARQ that base station obtains is ACK or NACK, and HARQ information corresponds to the control channel power of the UE
PUE_iWith CCE degree of polymerization LCCE_iWhen ACK or NACK information, need reduce UE control channel power and the CCE degree of polymerization in
At least one.
When currently point is adjusted for the CCE degree of polymerization, the power adjustment point of UE has two：PRS+ D2', 1～L1；PRS+ D2 ",
L1～L2, first whenAnd 1<LCCE_i<During=L1, or
And L1<LCCE_i<During=L2, CCE statistic Δ CCE are adjustedi, by Δ CCEiIt is adjusted to current CCE statistics Δ CCEiWith setting
The corresponding adjusting steps of non-DTXSum, i.e.,In the present inventionThe BLER desired values of control channel are BLERt。
According to the CCE statistic Δ CCE after adjustmenti, interpretation Δ CCEiWhether the downward CCE polymerization of setting is not more than
Degree threshold T hr1, as Δ CCEi<During=Thr1, then by CCE degree of polymerization L 'CCE_iIt is adjusted to current CCE degree of polymerization LCCE_i's
Half, i.e. L 'CCE_i=LCCE_i/2。
Afterwards, the current control channel power Ps of UE are judgedUE_iWith PRSCCE degree of polymerization when+D2' is equal, then after adjusting
L’CCE_i=max (1, L 'CCE_i), if judging the current control channel power Ps of UEUE_iWith PRSWhen+D2 " is equal, then after adjusting
CCE degree of polymerization L 'CCE_i=max (L1, L 'CCE_i)
When power adjustment is carried out, according to the corresponding power back-off step-length of the downward CCE degree of polymerizationTo current UE
Control channel power compensate, the control channel power of the UE after compensation Basis afterwards
The restriction of UE determines the control channel power of the UE after adjustment, determines the control channel power P of the UE after the adjustment "UE_i=max
(min(PRS+ D2_MAX, P'UE_i), PRS+D2_MIN)。
The control channel power P of the UE after then now adjustingUE_i=P "UE_i, CCE degree of polymerization L after adjustmentCCE_i=
L’CCE_i, the control channel power P of the UE that base station now preserves to itselfUE_iAnd CCE degree of polymerization LCCE_iIt is updated, with
Continue after an action of the bowels when PDCCH resource determines and use.
When currently for control channel power adjustment point when, then only the control channel power of UE is adjusted, first basis
The whole step-length of the power decreasing of settingFirst time adjustment is carried out to the control channel power of the UE, after this is adjusted for the first time
Control channel powerAfterwards according to max (min (PRS+ D2_MAX, P'UE_i), PRS+D2_
MIN the control channel power P of the UE after adjustment) is determined "UE_i, i.e. now P "UE_i=max (min (PRS+ D2_MAX, P'UE_i),
PRS+ D2_MIN), and keep the CCE degree of polymerization constant.
The control channel power P of the UE after adjustmentUE_iFor P "UE_i, CCE degree of polymerization L after adjustmentCCE_iKeep constant, base
The control channel power P of the UE for standing now to itself preservationUE_iAnd CCE degree of polymerization LCCE_iIt is updated, so as to follow-up
Use when PDCCH resource determines.
When base station judges the HARQ of UE feedback for DTX, and current DTX feedbacks to should UE control channel power
PUE_iWith CCE degree of polymerization LCCE_iWhen DTX feedback, need improve UE control channel power and the CCE degree of polymerization at least one
It is individual.
When currently point is adjusted for the CCE degree of polymerization, the power adjustment point of UE has two：PRS+ D2', 1～L1；PRS+ D2 ",
L1～L2, first whenAnd 1<=LCCE_i<During L1, orAnd
And L1<=LCCE_i<During L2, CCE statistic Δ CCE are adjustedi, by Δ CCEiIt is adjusted to
According to the CCE statistic Δ CCE after adjustmenti, interpretation Δ CCEiWhether more than the rise CCE degree of polymerization for setting
Threshold T hr, as Δ CCEi>During Thr, then by CCE degree of polymerization L 'CCE_iIt is adjusted to current CCE degree of polymerization LCCE_i2 times, i.e.,
L’CCE_i=LCCE_i*2。
Afterwards, the current control channel power Ps of UE are judgedUE_iWith PRSCCE degree of polymerization when+D2' is equal, then after adjusting
L’CCE_i=min (L1, L 'CCE_i), if judging the current control channel power Ps of UEUE_iWith PRSWhen+D2 " is equal, then after adjusting
CCE degree of polymerization L 'CCE_i=min (L2, L 'CCE_i)。
Carry out power adjust when, first according to judge this carry out the enable of power back-off switch whether enable, that is, judgeWhether it is 1, when thisWhen, mended according to the corresponding power of the rise CCE degree of polymerization for arranging
Repay step-lengthThe control channel power of current UE is compensated, the control channel power of the UE after compensation
Afterwards, the control channel power of the UE after adjustment is determined according to the restriction of UE, determines the control of the UE after the adjustment
Channel power P "UE_i=max (min (PRS+ D2_MAX, P'UE_i), PRS+ D2_MIN), i.e., the control channel of the UE after now adjusting
Power PUE_i=P "UE_i, CCE degree of polymerization L after the adjustmentCCE_i=L 'CCE_i。
When this carries out the enable switch of power back-off to be not enabled on,For 0 when, then be not controlled channel
Power is adjusted, and the control channel power of the UE is PUE_i, CCE degree of polymerization L after the adjustmentCCE_i=L'CCE_i。
When currently for control channel power adjustment point when, then only the control channel power of UE is adjusted, first basis
The step-length adjusted on the power of settingFirst time adjustment is carried out to the control channel power of the UE, after this is adjusted for the first time
Control channel powerAfterwards according to max (min (PRS+ D2_MAX, P'UE_i), PRS+D2_MIN)
It is determined that the control channel power P of the UE after adjustment "UE_i, i.e. now P "UE_i=max (min (PRS+ D2_MAX, P'UE_i), PRS+
D2_MIN), and keep the CCE degree of polymerization constant.
A kind of determination apparatus structure schematic diagram of physical downlink control channel PDCCH resource that Fig. 3 is provided for the present invention, institute
Stating device includes：
Judge module 31, for judging to obtain the moment in uplink feedback information, if get user terminal UE feedbacks
Hybrid automatic repeat-request HARQ；
First adjusting module 32, for being confirmation response ACK or negative response NACK as the HARQ for receiving the UE feedbacks, and
The ACK or NACK feed back to should UE current control channel power and during the control channel unit CCE degree of polymerization, lower the UE's
At least one of control channel power and the CCE degree of polymerization；
Second adjusting module 33, for being discontinuous transmission DTX as the HARQ for receiving the UE feedbacks, and the DTX feedbacks are right
Should UE control channel power and during the CCE degree of polymerization, raise the control channel power of the UE and at least the one of the CCE degree of polymerization
Kind.
First adjusting module 32, specifically for judging whether current be CCE degree of polymerization adjustment point；When judgement is currently
During the CCE degree of polymerization corresponding power adjustment point, lower the CCE degree of polymerization of the UE and control channel power is compensated, when sentencing
During the disconnected current adjustment point for power, the control channel power of the UE is lowered.
First adjusting module 32, specifically for judging the control channel power of current UE whether less than the first of setting
Power threshold, and the UE current CCE degree of polymerization is in the corresponding CCE degree of polymerization interval range of first power threshold；When
The control channel power of the UE is less than the first power threshold for setting, and the UE current CCE degree of polymerization is located at first power
When in the corresponding CCE degree of polymerization interval range of threshold value, then CCE statistics are adjusted to the non-DTX of current CCE statistics and setting
Corresponding adjusting step sum；Judge whether the CCE statistics after adjusting are not more than the downward CCE degree of polymerization thresholdings of setting
Value；When the CCE statistics after the adjustment are not more than the downward CCE degree of polymerization threshold values for setting, then the CCE degree of polymerization is adjusted
For the half of the current CCE degree of polymerization, and according to UE current power, it is determined that the CCE degree of polymerization of the UE after adjustment；According to setting
The fixed corresponding power back-off step-length of the downward CCE degree of polymerization, compensates the control channel power of the UE.
First adjusting module 32, specifically for according to the whole step-length of the power decreasing for arranging, lowering the control of the UE
Channel power.
Second adjusting module 33, specifically for judging whether current be CCE degree of polymerization adjustment point；When judgement is currently
When the corresponding power of the CCE degree of polymerization adjusts point, raise the CCE degree of polymerization of the UE and judge whether to adjust control according to switch is enabled
Channel power, when switch enable is enabled, raises control channel power, when the current adjustment point as power is judged, raises the UE
Control channel power.
Second adjusting module 33, specifically for judging the control channel power of current UE whether more than the second of setting
Power threshold, and the UE current CCE degree of polymerization is in the corresponding CCE degree of polymerization interval range of second power threshold；When
The control channel power of the UE is more than the second power threshold for setting, and the UE current CCE degree of polymerization is located at second power
When in the corresponding CCE degree of polymerization interval range of threshold value, then CCE statistics are adjusted to DTX pair of current CCE statistics and setting
The adjusting step sum answered；Judge the CCE statistics after adjusting whether more than the rise CCE degree of polymerization threshold values for setting；When
When the CCE statistics after the adjustment are more than the rise CCE degree of polymerization threshold values for setting, then the CCE degree of polymerization is adjusted to into current
2 times of the CCE degree of polymerization, and according to UE current power, it is determined that the CCE degree of polymerization of the UE after adjustment；And switch when enabling
During enable, according to the corresponding power back-off step-length of the rise CCE degree of polymerization of setting, the control channel power of the UE is adjusted.
Second adjusting module 33, specifically for according to the step-length adjusted on the power for arranging, raising the control of the UE
Channel power.
The specific device may be located in base station.
The invention provides a kind of determination method and device of PDCCH resource, due to whether being connect according to UE in the present invention
The information that the base station sends is received, the control channel power and the CCE degree of polymerization of UE are adjusted, when receiving UE feedbacks
During ACK or NACK, it is believed that UE have received the information of base station transmission, the power of control channel and the CCE degree of polymerization of UE are lowered, when
During the DTX of UE feedbacks, it is believed that UE does not receive the information of base station transmission, the CCE for needing the power and UE for raising control channel gathers
It is right, so as to ensure the reasonability of control channel power and the adjustment of the CCE degree of polymerization, and accuracy.
Described above illustrates and describes a preferred embodiment of the present invention, but as previously mentioned, it should be understood that the present invention
Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and can be used for various other combinations,
Modification and environment, and can be in invention contemplated scope described herein, by above-mentioned teaching or the technology or knowledge of association area
It is modified.And change that those skilled in the art are carried out and change be without departing from the spirit and scope of the present invention, then all should be at this
In the protection domain of bright claims.
Claims (14)
1. a kind of determination method of physical downlink control channel PDCCH resource, it is characterised in that methods described includes：
Base station judges to obtain the moment in uplink feedback information, if get the hybrid automatic repeat-request of user terminal UE feedbacks
HARQ；
When the HARQ for receiving UE feedback is to confirm response ACK or negative response NACK, and the ACK or NACK feedbacks are to should UE
Current control channel power and during the control channel unit CCE degree of polymerization, lower the control channel power of the UE, or, lower
The control channel power and the CCE degree of polymerization of the UE；
When receive UE feedback for discontinuous transmission DTX, and the DTX feed back to should UE control channel power and CCE it is poly-
When right, the control channel power of the UE is raised, or, raise the control channel power and the CCE degree of polymerization of the UE.
2. the method for claim 1, it is characterised in that the control channel power of the downward UE, or, lowering should
The control channel power and the CCE degree of polymerization of UE includes：
Judge whether current be CCE degree of polymerization adjustment point；
When the current point as the adjustment of the CCE degree of polymerization is judged, lower the CCE degree of polymerization of the UE and control channel power is mended
Repay,
When the current point as the adjustment of control channel power is judged, the control channel power of the UE is lowered.
3. method as claimed in claim 2, it is characterised in that the CCE degree of polymerization of the downward UE and to control channel work(
Rate compensate including：
Whether the control channel power for judging current UE is less than the first power threshold of setting, and the UE current CCE degree of polymerization
In the corresponding CCE degree of polymerization interval range of first power threshold；
When the UE control channel power less than setting the first power threshold, and the UE current CCE degree of polymerization be located at this
When in the corresponding CCE degree of polymerization interval range of one power threshold, then CCE statistics are adjusted to into current CCE statistics with setting
The corresponding adjusting step sums of non-DTX；
Judge whether the CCE statistics after adjusting are not more than the downward CCE degree of polymerization threshold values of setting；
When the CCE statistics after the adjustment are not more than the downward CCE degree of polymerization threshold values for setting, then the CCE degree of polymerization is adjusted
The whole half for the current CCE degree of polymerization, and according to UE current control channel power, it is determined that the CCE of the UE after adjustment gathers
It is right；
According to the corresponding power back-off step-length of the downward CCE degree of polymerization of setting, the control channel power of the UE is compensated.
4. method as claimed in claim 2, it is characterised in that the control channel power of the downward UE includes：
According to the whole step-length of the power decreasing for arranging, the control channel power of the UE is lowered.
5. the method for claim 1, it is characterised in that the control channel power of the rise UE, or, raising should
The control channel power and the CCE degree of polymerization of UE includes：
Judge whether current be CCE degree of polymerization adjustment point；
When the current point as the adjustment of the CCE degree of polymerization is judged, raise the CCE degree of polymerization of the UE and judge whether to adjust according to switch is enabled
Whole control channel power, when switch enable is enabled, raises control channel power,
When the current point as power adjustment is judged, the control channel power of the UE is raised.
6. method as claimed in claim 5, it is characterised in that the control channel power and the CCE degree of polymerization of the rise UE
Including：
Whether the control channel power for judging current UE is more than the second power threshold of setting, and the UE current CCE degree of polymerization
In the corresponding CCE degree of polymerization interval range of second power threshold；
When the UE control channel power more than setting the second power threshold, and the UE current CCE degree of polymerization be located at this
When in the corresponding CCE degree of polymerization interval range of two power thresholds, then CCE statistics are adjusted to into current CCE statistics with setting
The corresponding adjusting step sums of DTX；
Judge the CCE statistics after adjusting whether more than the rise CCE degree of polymerization threshold values for setting；
When rise CCE degree of polymerization threshold value of the CCE statistics after the adjustment more than setting, then the CCE degree of polymerization is adjusted
For 2 times of the current CCE degree of polymerization, and according to UE current power, it is determined that the CCE degree of polymerization of the UE after adjustment；
And when switch enable is enabled, according to the corresponding power back-off step-length of the rise CCE degree of polymerization of setting, adjust the control of the UE
Channel power processed.
7. method as claimed in claim 5, it is characterised in that the control channel power of the rise UE includes：
According to the step-length adjusted on the power for arranging, the control channel power of the UE is raised.
8. a kind of determining device of physical downlink control channel PDCCH resource, it is characterised in that described device includes：
Judge module, for judging to obtain the moment in uplink feedback information, if get the mixing of user terminal UE feedbacks certainly
Dynamic repeat requests HARQ；
First adjusting module, for being to confirm response ACK or negative response NACK as the HARQ for receiving the UE feedbacks, and the ACK
Or NACK feed back to should UE current control channel power and during the control channel unit CCE degree of polymerization, lower the control of the UE
Channel power, or, lower the control channel power and the CCE degree of polymerization of the UE；
Second adjusting module, for being discontinuous transmission DTX as the HARQ that receive UE feedback, and DTX feedbacks are to should UE
Control channel power and during the CCE degree of polymerization, raise the control channel power of the UE, or, raise the control channel work(of the UE
Rate and the CCE degree of polymerization.
9. device as claimed in claim 8, it is characterised in that first adjusting module, specifically for judge it is current whether
Point is adjusted for the CCE degree of polymerization；When the current point as the adjustment of the CCE degree of polymerization is judged, the CCE degree of polymerization of the UE is lowered and to control letter
Road power is compensated, and when the current point as power adjustment is judged, lowers the control channel power of the UE.
10. device as claimed in claim 9, it is characterised in that first adjusting module, specifically for judging current UE
Whether control channel power is less than the first power threshold for setting, and the UE current CCE degree of polymerization is located at first power-threshold
It is worth in corresponding CCE degree of polymerization interval range；When the control channel power of the UE is less than the first power threshold of setting, and the UE
When the current CCE degree of polymerization is located in the corresponding CCE degree of polymerization interval range of first power threshold, then CCE statistics are adjusted
The whole corresponding adjusting step sums of non-DTX for current CCE statistics and setting；Whether judge the CCE statistics after adjusting
The downward CCE degree of polymerization threshold values for no more than setting；The CCE statistics after adjustment are not more than the downward CCE for setting and gather
During fitness threshold value, then the CCE degree of polymerization is adjusted to the half of the current CCE degree of polymerization, and according to UE current power, it is determined that
The CCE degree of polymerization of the UE after adjustment；According to the corresponding power back-off step-length of the downward CCE degree of polymerization of setting, compensate the UE's
Control channel power.
11. devices as claimed in claim 9, it is characterised in that first adjusting module, specifically for according to the work(for arranging
The step-length adjusted under rate, lowers the control channel power of the UE.
12. devices as claimed in claim 8, it is characterised in that second adjusting module, specifically for judge it is current whether
Point is adjusted for the CCE degree of polymerization；When current power adjustment point corresponding as the CCE degree of polymerization is judged, the CCE degree of polymerization of the UE is raised
And judge whether to adjust control channel power according to switch is enabled, when enabling switch and enabling, control channel power is raised, when sentencing
During the disconnected current adjustment point for power, the control channel power of the UE is raised.
13. devices as claimed in claim 12, it is characterised in that second adjusting module, specifically for judging current UE
Control channel power whether more than the second power threshold of setting, and the UE current CCE degree of polymerization is located at second power
In the corresponding CCE degree of polymerization interval range of threshold value；When the control channel power of the UE is more than the second power threshold for setting, and should
When the UE current CCE degree of polymerization is located in the corresponding CCE degree of polymerization interval range of second power threshold, then by CCE statistics
It is adjusted to current CCE statistics adjusting step sum corresponding with the DTX of setting；Whether judge the CCE statistics after adjusting
More than the rise CCE degree of polymerization threshold values of setting；The rise CCE degree of polymerization of the CCE statistics after adjustment more than setting
During threshold value, then the CCE degree of polymerization is adjusted to 2 times of the current CCE degree of polymerization, and according to UE current power, it is determined that adjustment
The CCE degree of polymerization of the UE afterwards；And when switch enable is enabled, according to the corresponding power back-off of the rise CCE degree of polymerization of setting
Step-length, adjusts the control channel power of the UE.
14. devices as claimed in claim 12, it is characterised in that second adjusting module, specifically for according to setting
The step-length adjusted on power, raises the control channel power of the UE.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021311.6A CN103986551B (en) | 2011-07-19 | 2011-07-19 | A kind of determination method and device of physical downlink control channel resource |
| CN201110202465.1A CN102892186B (en) | 2011-07-19 | 2011-07-19 | Method and device for determining physical downlink control channel resource |
| JP2014520501A JP5735178B2 (en) | 2011-07-19 | 2012-04-13 | Method and apparatus for determining physical downlink control channel resources |
| PCT/CN2012/074030 WO2012155735A1 (en) | 2011-07-19 | 2012-04-13 | Method and device for deciding physical downlink control channel resource |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110202465.1A CN102892186B (en) | 2011-07-19 | 2011-07-19 | Method and device for determining physical downlink control channel resource |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410021311.6A Division CN103986551B (en) | 2011-07-19 | 2011-07-19 | A kind of determination method and device of physical downlink control channel resource |
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| Publication Number | Publication Date |
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| CN102892186A CN102892186A (en) | 2013-01-23 |
| CN102892186B true CN102892186B (en) | 2017-05-10 |
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| CN201110202465.1A Expired - Fee Related CN102892186B (en) | 2011-07-19 | 2011-07-19 | Method and device for determining physical downlink control channel resource |
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| JP (1) | JP5735178B2 (en) |
| CN (1) | CN102892186B (en) |
| WO (1) | WO2012155735A1 (en) |
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| CN103986551B (en) * | 2011-07-19 | 2018-08-21 | 南京中兴软件有限责任公司 | A kind of determination method and device of physical downlink control channel resource |
| CN104168094B (en) * | 2013-05-20 | 2017-08-11 | 普天信息技术研究院有限公司 | discontinuous transmission detection method |
| US9949213B2 (en) | 2013-12-03 | 2018-04-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Physical downlink control channel power coordination |
| CN105101104B (en) * | 2014-04-18 | 2019-01-01 | 成都鼎桥通信技术有限公司 | Method, base station and the monitor terminal of CCE aggregation levels are adjusted in group service |
| EP3446423B1 (en) * | 2016-04-19 | 2021-09-22 | Telefonaktiebolaget LM Ericsson (PUBL) | Applying more robust transmission procedure |
| CN108574558B (en) * | 2017-03-13 | 2020-08-14 | 华为技术有限公司 | Method and device for transmitting control information |
| CN110831135B (en) * | 2018-08-10 | 2022-08-26 | 华为技术有限公司 | Power control method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101843012A (en) * | 2007-11-05 | 2010-09-22 | Lg电子株式会社 | Method of controlling power in wireless communication system |
| CN101895936A (en) * | 2009-05-18 | 2010-11-24 | 中兴通讯股份有限公司 | Method and device for distributing control channel resources |
| CN102123018A (en) * | 2010-01-11 | 2011-07-13 | 北京三星通信技术研究有限公司 | Method for feeding back receiving state in hybrid automatic retransmitting request |
| CN103986551A (en) * | 2011-07-19 | 2014-08-13 | 中兴通讯股份有限公司 | Method and apparatus for determining PDCCH (physical downlink control channel) resources |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101455114B (en) * | 2006-05-24 | 2011-10-05 | 日本电气株式会社 | Mobile communication system, base station, and transmission power control method used for them |
| US8559946B2 (en) * | 2008-02-08 | 2013-10-15 | Qualcomm Incorporated | Discontinuous transmission signaling over an uplink control channel |
-
2011
- 2011-07-19 CN CN201110202465.1A patent/CN102892186B/en not_active Expired - Fee Related
-
2012
- 2012-04-13 WO PCT/CN2012/074030 patent/WO2012155735A1/en active Application Filing
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101843012A (en) * | 2007-11-05 | 2010-09-22 | Lg电子株式会社 | Method of controlling power in wireless communication system |
| CN101895936A (en) * | 2009-05-18 | 2010-11-24 | 中兴通讯股份有限公司 | Method and device for distributing control channel resources |
| CN102123018A (en) * | 2010-01-11 | 2011-07-13 | 北京三星通信技术研究有限公司 | Method for feeding back receiving state in hybrid automatic retransmitting request |
| CN103986551A (en) * | 2011-07-19 | 2014-08-13 | 中兴通讯股份有限公司 | Method and apparatus for determining PDCCH (physical downlink control channel) resources |
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| WO2012155735A1 (en) | 2012-11-22 |
| JP2014523209A (en) | 2014-09-08 |
| JP5735178B2 (en) | 2015-06-17 |
| CN102892186A (en) | 2013-01-23 |
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