CN106304298A - A kind of unauthorized resource ascending power control method, terminal, base station and system - Google Patents
A kind of unauthorized resource ascending power control method, terminal, base station and system Download PDFInfo
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- CN106304298A CN106304298A CN201510245540.0A CN201510245540A CN106304298A CN 106304298 A CN106304298 A CN 106304298A CN 201510245540 A CN201510245540 A CN 201510245540A CN 106304298 A CN106304298 A CN 106304298A
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- instruction information
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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
Abstract
The invention discloses a kind of unauthorized resource ascending power control method, UE, base station and system, described method includes: receive the instruction information that base station sends；The instruction information sent according to base station, selects power control mode；At least one according to following information calculates and adjusts the transmitting power of terminal UE: the described instruction information that receives from base station, the maximum transmission power of UE, path loss, clear channel assessment (CCA) CCA measured value, power accumulation and.
Description
Technical field
The present invention relates to wireless communication technology, particularly relate to a kind of unauthorized resource ascending power control method,
Terminal, base station and system.
Background technology
In the evolution process of Long Term Evolution (LTE, Long Term Evolution) technology, LTE Rel-13
Version starts registration study in JIUYUE, 2014, and one of them important content is exactly that LTE system uses non-
Authorize carrier operation.This technology can use the unauthorized carrier wave that presently, there are, greatly by making LTE system
The big potential frequency spectrum resource promoting LTE system so that LTE system is obtained in that lower frequency spectrum cost.
But LTE utilizes unauthorized carrier wave to face problems when carrying out data transmission, and part is as follows:
Uplink power control in LTE/LTE-A system is primarily to reduce signal interference each other and design
, it being usually and be calculated according to open loop closed loop two ways, uplink power control disclosure satisfy that communication performance just may be used
With.In unlicensed spectrum, in addition to LTE/LTE-A system, there is also other as Wireless Fidelity (WiFi,
Wireless Fidelity), the system such as radar (Radar), for fairness, each system needs to use and first listens
The rear mode sent out obtains resource, before namely sending data, first intercepts channel, when the interference listened to is little
In thresholding, then it is assumed that channel idle, data the most just can be sent, if the interference listened to is more than thresholding,
Then thinking channel busy, now can not send data, therefore data have substantially eliminated each other when sending
Disturb the biggest situation, if still taking LTE/LTE-A system authorization carrier wave that uplink power control mode,
Power resource will be wasted, make the ascending performance of unauthorized carrier wave be restricted, and the merit of unlicensed spectrum
Rate controls communication performance to be considered, the clear channel assessment (CCA) being able to detect that of adjacent bus station to be considered
(CCA, Clear Channel Assessment) thresholding, otherwise adjacent bus station may think that channel idle, also
Occupy this channel will cause interference with, so the power of unlicensed spectrum controls not to be the smaller the better, in addition it is also necessary to
Considering the factors such as CCA thresholding, the ascending power control method for unauthorized carrier wave the most not yet has concrete
Solution.
Summary of the invention
For solving above-mentioned technical problem, embodiments provide a kind of unauthorized resource uplink power control
Method, terminal, base station and system.
The unauthorized resource ascending power control method that the embodiment of the present invention provides includes:
Receive the instruction information that base station sends；
The instruction information sent according to base station, selects power control mode；
At least one according to following information calculates and adjusts the transmitting of terminal (UE, User Equipment)
Power: the described instruction information that receives from base station, the maximum transmission power of UE, path loss, CCA measure
Value, power accumulation and.
In an embodiment of the present invention, described instruction information includes at least one of following information: authorize auxiliary
The pattern configurations signaling of CCA, merit whether is performed in accessing (LAA, Licensed Assisted Access)
Rate control mode indication signaling, whether exist pattern indication signaling that multiple UE transmits simultaneously, power coefficient,
Access UE number indication signaling, the UE number indication signaling of scheduling, transmit simultaneously UE number instruction
Signaling, the UE number of once at most scheduling.
In an embodiment of the present invention, the described instruction information sent according to base station, select power control mode,
Including:
In the pattern configurations signaling whether performing CCA in the LAA in described instruction information indicates LAA
When performing CCA, select the power control mode on unauthorized carrier wave；
In the pattern configurations signaling whether performing CCA in the LAA in described instruction information indicates LAA
When not performing CCA, select the power control mode in Long Term Evolution LTE/LTE-A agreement.
In an embodiment of the present invention, according to the transmitting power of at least one calculating UE of following information, bag
Include: according to the transmitting power of below equation calculating UE:
Maximum transmission power × the power coefficient of the transmitting power=UE of UE；Or,
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number × power coefficient；Or,
The maximum transmission power of the transmitting power=UE of UE；Or,
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number；Or,
Maximum transmission power/UE the number of the transmitting power=UE of UE, wherein, UE number is access
UE number or the UE number being scheduled or the UE number simultaneously transmitted.
In an embodiment of the present invention, according to the transmitting power of at least one adjustment UE of following information, bag
Include:
When path loss is higher than pre-determined threshold, transmitting power current for UE is improved；
When CCA measured value raises, transmitting power current for UE is reduced；When CCA measured value reduces
Time, transmitting power current for UE is improved.
In an embodiment of the present invention, described method also includes:
When the power accumulation when whole bandwidth and maximum transmission power more than UE, adjust CCA thresholding or
Readjust transmitting power, so that the power accumulation of whole bandwidth and the maximum transmission power less than UE.
The unauthorized resource ascending power control method that another embodiment of the present invention provides includes:
Instruction information is sent, so that described UE carries out uplink power control according to described instruction information to UE；
Wherein, described instruction information includes at least one of following information: whether perform CCA's in LAA
Pattern configurations signaling, power control mode indication signaling, whether there is the pattern that multiple UE transmits simultaneously and refer to
Show signaling, power coefficient, the UE number indication signaling of access, the UE number indication signaling of scheduling, with
Time the UE number indication signaling of transmission, the UE numbers of once at most scheduling.
In an embodiment of the present invention, described to UE send instruction information, including:
Instruction information is sent to UE by physical layer signaling；Or,
Instruction information is sent to UE by high-level signaling；Or,
Unauthorized carrier wave sends the Seize ACK message of carrying instruction information to UE.
In an embodiment of the present invention, the multiple signalings in the instruction information that UE sends can use identical
Or different modes sends.
Described power coefficient is calculated according at least one of following information:
In an embodiment of the present invention, described power coefficient is calculated according to following information at least one:
The UE number, the UE number of scheduling, once the UE number of most scheduling, each UE that access are distributed
Radio Resource, path loss, power accumulation in CCA measured value, whole bandwidth and.
In an embodiment of the present invention, described method also includes: launch merit according to predetermined way to UE distribution
Rate is composed；Or,
When using non-resource multiplexing (non-reuse) mode to dispatch in whole bandwidth, to UE distribution higher than pre-
The transmitting power spectrum of definite value；When using part resource multiplexing (part-reuse) mode to dispatch, to non-reuse
UE distribution higher than the transmitting power spectrum of predetermined value, the UE of resource multiplex (reuse) is distributed less than predetermined value
Transmitting power spectrum.
The UE that the embodiment of the present invention provides includes:
Receive unit, for receiving the instruction information that base station sends；
Select unit, for the instruction information sent according to base station, select power control mode；
Processing unit, at least one calculating according to following information and the transmitting power of adjustment UE: from
Described instruction information that base station receives, the maximum transmission power of UE, path loss, CCA measured value, power
Accumulation and.
In an embodiment of the present invention, described instruction information includes at least one of following information: authorize auxiliary
Access and whether perform the pattern configurations signaling of CCA, power control mode indication signaling, whether inside LAA
Exist pattern indication signaling that multiple UE transmits simultaneously, power coefficient, the UE number indication signaling of access,
The UE number indication signaling of scheduling, the UE number indication signaling simultaneously transmitted, the UE of once at most scheduling
Number.
In an embodiment of the present invention, described selection unit includes:
First selects subelement, for when the pattern whether performing CCA in the LAA in described instruction information
When performing CCA in configuration signal instruction LAA, select the power control mode on unauthorized carrier wave；
Second selects subelement, for when the pattern whether performing CCA in the LAA in described instruction information
When not performing CCA in configuration signal instruction LAA, select the power in Long Term Evolution LTE/LTE-A agreement
Control mode.
In an embodiment of the present invention, described processing unit includes:
Computation subunit, for calculating the transmitting power of UE according to below equation:
Maximum transmission power × the power coefficient of the transmitting power=UE of UE；Or,
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number × power coefficient；Or,
The maximum transmission power of the transmitting power=UE of UE；Or,
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number；Or,
Maximum transmission power/UE the number of the transmitting power=UE of UE, wherein, UE number is access
UE number or the UE number being scheduled or the UE number simultaneously transmitted.
In an embodiment of the present invention, described processing unit includes: control subelement, for being higher than when path loss
During pre-determined threshold, transmitting power current for UE is improved；When CCA measured value raises, UE is current
Transmitting power reduce；When CCA measured value reduces, transmitting power current for UE is improved.
In an embodiment of the present invention, described processing unit includes: adjust subelement, for when whole bandwidth
Power accumulation and during maximum transmission power more than UE, adjust CCA thresholding or readjust transmitting merit
Rate, so that the power accumulation of whole bandwidth and the maximum transmission power less than UE.
The base station that the embodiment of the present invention provides includes:
Transmitting element, for sending instruction information to UE, so that described UE enters according to described instruction information
Row uplink power control；
Wherein, described instruction information includes at least one of following information: whether perform CCA's in LAA
Pattern configurations signaling, power control mode indication signaling, whether there is the pattern that multiple UE transmits simultaneously and refer to
Show signaling, power coefficient, the UE number indication signaling of access, the UE number indication signaling of scheduling, with
Time the UE number indication signaling of transmission, the UE numbers of once at most scheduling.
In an embodiment of the present invention, described transmitting element, it is additionally operable to be sent to UE by physical layer signaling
Instruction information；Or,
Instruction information is sent to UE by high-level signaling；Or,
Unauthorized carrier wave sends the Seize ACK message of carrying instruction information to UE.
In an embodiment of the present invention, the multiple signalings in the instruction information that UE sends can use identical
Or different modes sends.
In an embodiment of the present invention, described power coefficient is calculated according to following information at least one:
The UE number, the UE number of scheduling, once the UE number of most scheduling, each UE that access are distributed
Radio Resource, path loss, power accumulation in CCA measured value, whole bandwidth and.
In an embodiment of the present invention, described base station also includes: control unit, according to predetermined way to UE
Power spectrum is launched in distribution；Or, when using non-reuse mode to dispatch in whole bandwidth, to UE distribution height
Transmitting power spectrum in predetermined value；When using part-reuse mode to dispatch, distribute to the UE of non-reuse
Higher than the transmitting power spectrum of predetermined value, distribute the transmitting power spectrum less than predetermined value to the UE of reuse.
The unauthorized resource upstream power control system that the embodiment of the present invention provides includes:
Base station, for sending instruction information to UE；
UE, for receiving the instruction information that base station sends；The instruction information sent according to base station, selects power
Control mode；At least one according to following information calculates and adjusts the transmitting power of UE: receive from base station
The described instruction information that arrives, the maximum transmission power of UE, path loss, clear channel assessment (CCA) CCA measured value,
Power accumulation and.
In an embodiment of the present invention, described base station, it is additionally operable to launch merit according to predetermined way to UE distribution
Rate is composed；Or, when using non-resource multiplexing (non-reuse) mode to dispatch in whole bandwidth, divide to UE
Join the transmitting power spectrum higher than predetermined value；When using part resource multiplexing (part-reuse) mode to dispatch,
Distribute the transmitting power spectrum higher than predetermined value to the UE of non-reuse, the UE of resource multiplex (reuse) is distributed
Transmitting power spectrum less than predetermined value.
In the technical scheme of the embodiment of the present invention, base station sends control information to UE, and this control information is at least
One including following information: authorize auxiliary access whether perform inside LAA CCA pattern configurations signaling,
Power control mode indication signaling, whether there is pattern indication signaling, power train that multiple UE transmits simultaneously
Number, the UE number indication signaling accessed, the UE number indication signaling of scheduling, the UE number simultaneously transmitted
Indication signaling, the UE number of once at most scheduling.UE, according to the instruction information of base station, selects corresponding merit
Rate control mode, to be adjusted the power of UE according to corresponding power control mode.Specifically, UE
At least one according to following information calculates and the transmitting power of adjustment terminal UE: the institute received from base station
State instruction information, the maximum transmission power of UE, path loss, clear channel assessment (CCA) CCA measured value, power tire out
Long-pending and.The embodiment of the present invention solves LTE system when unauthorized carrier wave frequency range works, uplink power resource
The problem of waste so that LTE system more dynamic adjustment can launch power in unlicensed spectrum, has
Imitate make use of power resource, improves the upstream performance of unlicensed spectrum.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention one；
Fig. 2 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention two；
Fig. 3 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention three；
Fig. 4 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention four；
Fig. 5 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention five；
Fig. 6 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention six；
Fig. 7 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention seven；
Fig. 8 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention eight；
Fig. 9 is the structure composition schematic diagram of the UE of the embodiment of the present invention；
Figure 10 is the structure composition schematic diagram of the base station of the embodiment of the present invention；
Figure 11 is the structure composition schematic diagram of the unauthorized resource upstream power control system of the embodiment of the present invention.
Detailed description of the invention
In order to more fully hereinafter understand feature and the technology contents of the embodiment of the present invention, below in conjunction with the accompanying drawings
Realization to the embodiment of the present invention is described in detail, appended accompanying drawing purposes of discussion only for reference, is not used for
Limit the embodiment of the present invention.
Fig. 1 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention one, as
Shown in Fig. 1, described unauthorized resource ascending power control method comprises the following steps:
Step 101: receive the instruction information that base station sends.
In the embodiment of the present invention, UE receive the instruction information that base station sends.Here, described instruction information
Including at least one of following information: authorize auxiliary to access the pattern configurations whether performing CCA inside LAA
Signaling, power control mode indication signaling, whether exist pattern indication signaling that multiple UE transmits simultaneously,
Power coefficient, the UE number indication signaling of access, the UE number indication signaling of scheduling, transmit simultaneously
UE number indication signaling, the UE number of once at most scheduling.
Here, the power coefficient of different UE can be the same or different.
In the embodiment of the present invention, UE can one of in the following manner receive the instruction information that base station sends:
Mode one: received by physical layer signaling, described physical layer signaling include Downlink Control Information (DCI,
Downlink Control Information) signaling.
Mode two: received by high-level signaling.
Mode three: receive the Seize ACK message of carrying instruction information on the unauthorized carrier wave competed.
In such scheme, multiple signalings that UE receives in the instruction information that base station sends can use different sides
Formula receives.
In the embodiment of the present invention, described power coefficient is calculated according at least one of following information:
The UE number, the UE number of scheduling, once the UE number of most scheduling, each UE that access are divided
The Radio Resource joined, path loss, power accumulation in CCA measured value, whole bandwidth and.Here, CCA
Measured value is recorded by base station.
In the embodiment of the present invention, particular terminal is distributed higher transmitting power according to predetermined way by base station；Or
Person, when using non-reuse mode to dispatch in whole bandwidth, to the transmitting power spectrum that corresponding UE distribution is higher；
When using part-reuse mode to dispatch, distribute relatively high emission power spectrum to the UE of non-reuse, to reuse
The UE relatively low transmitting power spectrum of distribution.That is: for UE, when UE uses non-reuse mode to dispatch,
The transmitting power spectrum distributing to UE is higher；And when UE uses reuse mode to dispatch, distribute to UE's
Transmitting power spectrum is relatively low.For example, it is assumed that UE1 takies subband 1～4, UE2 takies subband 5～8, subband 1～4
Being non-reuse mode, subband 5～8 is reuse mode, and relatively high emission is distributed to UE1 in base station, to UE2
Distributing relatively low transmitting power, the power coefficient of such as UE1 is configured to 1.25, and UE2 power coefficient is configured to
0.8。
Step 102: the instruction information sent according to base station, selects power control mode.
In the embodiment of the present invention, the pattern that whether can perform CCA in the LAA in more instruction information is joined
Confidence makes, and selects power control mode.
Specifically, indicate when the pattern configurations signaling whether performing CCA in the LAA in described instruction information
When performing CCA in LAA, select the power control mode on unauthorized carrier wave；
In the pattern configurations signaling whether performing CCA in the LAA in described instruction information indicates LAA
When not performing CCA, select the power control mode in LTE/LTE-A agreement.
In such scheme, the power control mode on unauthorized carrier wave refers specifically to merit newly-increased on unauthorized carrier wave
Rate control mode；Power control mode in LTE/LTE-A agreement refers specifically in LTE/LTE-A agreement present
Existing power control mode.Certainly, power control mode is not only limited to above two mode, it is also possible to
It is that power newly-increased on present existing power control mode and unauthorized carrier wave in LTE/LTE-A agreement controls
The combination of mode, can select corresponding power control mode according to concrete practical situation.
Step 103: at least one according to following information calculates and adjust the transmitting power of UE: connect from base station
The described instruction information that receives, the maximum transmission power of UE, path loss, clear channel assessment (CCA) CCA measured value,
Power accumulation and.
In this step, CCA measured value is obtained by UE measurement.
In the embodiment of the present invention, the transmitting power calculating UE can be according to equation below (1) to formula (5)
In any one formula calculate:
Maximum transmission power × the power coefficient (1) of the transmitting power=UE of UE
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number × power coefficient (2)
The maximum transmission power (3) of the transmitting power=UE of UE
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number (4)
Maximum transmission power/UE the number of the transmitting power=UE of UE, wherein, UE number is access
UE number or the UE number being scheduled or the UE number (5) simultaneously transmitted
In the embodiment of the present invention, the transmitting power adjusting UE can be adjusted in the following manner: works as road
When damaging higher than pre-determined threshold, transmitting power current for UE is improved；When CCA measured value raises, will
Transmitting power current for UE reduces；When CCA measured value reduces, transmitting power current for UE is improved.
Specifically, in the embodiment of the present invention, when UE needs to carry out carrier sense, and UE estimates the power of whole bandwidth
Accumulation and, when the power accumulation when whole bandwidth and maximum transmission power more than UE, UE can take with
One of lower adjustment launches power: adjusts CCA thresholding, readjust transmitting power, makes the power of whole bandwidth
Accumulation and the maximum transmission power less than UE.
In the embodiment of the present invention, when the power accumulation when whole bandwidth and the maximum transmission power more than UE,
Adjust CCA thresholding or readjust transmitting power, so that the power accumulation of whole bandwidth and less than UE
Maximum transmission power.
In the embodiment of the present invention, UE calculates and adjusts when launching power, it is ensured that UE always launches power and do not surpasses
Cross the maximum transmission power of the UE that LTE/LTE-A system specifies.
The embodiment of the present invention solves LTE system when unauthorized carrier wave frequency range works, uplink power resource wave
The problem taken so that LTE system more dynamic adjustment can launch power, effectively in unlicensed spectrum
Make use of power resource, improve the upstream performance of unlicensed spectrum.
Fig. 2 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention two, as
Shown in Fig. 2, described unauthorized resource ascending power control method comprises the following steps:
Step 201: whether base station performs the pattern configurations signaling of CCA to UE in sending LAA.
In the embodiment of the present invention, whether base station performs the mould of CCA in sending one of in the following manner LAA
Formula configuration signal is to UE:
Mode one: whether base station performs the pattern configurations letter of CCA in being sent to LAA by physical layer signaling
Order is to UE, and described physical layer signaling includes DCI signaling.
Mode two: whether base station performs the pattern configurations signaling of CCA in being sent to LAA by high-level signaling
To UE.
Mode three: whether base station performs CCA's in sending carrying LAA on the unauthorized carrier wave competed
The Seize ACK message of pattern configurations signaling is to UE.
Step 202:UE receives the instruction information of base station, and UE is according to the mould whether performing CCA in LAA
Formula configuration signal selects uplink power control mode.
Specifically, when performing CCA in LAA, UE selects the new power controlling party on unauthorized carrier wave
Formula；When not performing CCA in LAA, UE selects the existing power control mode of LTE/LTE-A system.
The embodiment of the present invention assumes to perform in LAA CCA, then UE receive base station instruction information it
After, select the new power control mode on unauthorized carrier wave.
Step 203:UE uses below equation to calculate transmitting power: UE transmitting, and power=(maximum of UE is sent out
Penetrate the RB number in power/whole bandwidth) × RB the number that takies.
Fig. 3 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention three, as
Shown in Fig. 3, described unauthorized resource ascending power control method comprises the following steps:
Step 301: whether base station sends instruction information and at least includes to UE, instruction information: hold in LAA
The pattern configurations signaling of row CCA and the UE number indication signaling being scheduled.
In the embodiment of the present invention, base station sends the optional mode of instruction information and includes:
Mode one: base station is by physical layer signaling transmission instruction information to UE, and described physical layer signaling includes
DCI signaling.
Mode two: base station sends instruction information to UE by high-level signaling.
Here, the pattern configurations signaling whether performing CCA in LAA, the UE number instruction letter being scheduled
Whether order can be adopted and be sent in a like fashion and can also send in different ways, such as, hold in LAA
The pattern configurations signaling of row CCA is sent by high-level signaling, and the UE number indication signaling being scheduled passes through physics
Layer signaling sends.
Step 302:UE, according to the instruction information of base station, selects power control mode.
After the embodiment of the present invention performs, in assuming LAA, the instruction information that CCA, UE receive base station, choosing
Select the new power control mode on unauthorized carrier wave.
The maximum that step 303:UE uses below equation to calculate transmitting power: UE transmitting power=UE is sent out
Penetrate that power/be scheduled UE number.
Fig. 4 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention four, as
Shown in Fig. 4, described unauthorized resource ascending power control method comprises the following steps:
Step 401: base station sends instruction information and includes to UE, instruction information: whether perform CCA in LAA
Pattern configurations signaling and power coefficient.
Base station sends the optional mode of instruction information and includes:
Mode one: base station is sent to UE by physical layer signaling, described physical layer signaling includes DCI signaling.
Mode two: base station is sent to UE by high-level signaling.
The pattern configurations signaling and the power coefficient that whether perform CCA in LAA can be adopted and send out in a like fashion
Send and can also send in different ways, such as, in LAA, whether perform the pattern configurations signaling of CCA
Being sent by high-level signaling, power coefficient is sent by physical layer signaling, or is all sent by DCI, or
All sent by high-level signaling.
Step 402:UE, according to the instruction information of base station, selects power control mode.
After the embodiment of the present invention performs, in assuming LAA, the instruction information that CCA, UE receive base station, choosing
Select the new power control mode on unauthorized carrier wave.
Step 403:UE uses below equation to calculate the emission maximum launching power: UE transmitting power=UE
Power x power coefficient.
Fig. 5 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention five, as
Described in Fig. 5, described unauthorized resource ascending power control method comprises the following steps:
Step 501: base station transmission instruction information is to UE, and whether instruction information performs CCA in including LAA
Pattern configurations signaling and the UE number indication signaling that is scheduled.
Base station sends the optional mode of instruction information and includes:
Mode one: base station is sent to UE by physical layer signaling, described physical layer signaling includes DCI signaling.
Mode two: base station is sent to UE by high-level signaling.
The pattern configurations signaling whether performing CCA in LAA and the UE number indication signaling being scheduled are permissible
Adopt and send in a like fashion and can also send in different ways, such as, in LAA, whether perform CCA
Pattern configurations signaling sent by high-level signaling, the UE number indication signaling being scheduled passes through physical layer signaling
Send.
Step 502:UE, according to the instruction information of base station, selects power control mode.
After the embodiment of the present invention performs, in assuming LAA, the instruction information that CCA, UE receive base station, choosing
Select the new power control mode on unauthorized carrier wave.
Step 503:UE uses below equation to calculate the emission maximum launching power: UE transmitting power=UE
Power.
Step 504:UE estimation power accumulation and, if power accumulation and more than the maximum transmission power of UE,
Then UE adjusts CCA thresholding, so that power accumulation and the maximum transmission power less than UE.
In the embodiment of the present invention, the maximum transmission power of power accumulation and (mw)=UE × be scheduled UE
Number, if power accumulation and the maximum transmission power more than UEUE, then UE would adjust CCA thresholding
=-73dBm/MHz+10 × lg (B)+23dBm-power accumulation and (dBm)；Wherein, B represents bandwidth, single
Position: MHz.
Fig. 6 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention six, as
Shown in Fig. 6, described unauthorized resource ascending power control method comprises the following steps:
Step 601: whether base station holds in following instruction information being sent to UE:LAA by high-level signaling
The pattern configurations signaling of row CCA, power coefficient, the UE number of once at most scheduling.
Step 602: base station is sent to UE by physical layer signaling the UE number indication signaling of scheduling.
Step 603:UE receives the instruction information that base station sends, and whether UE performs CCA according in LAA
Pattern configurations signaling select power control mode.
The embodiment of the present invention performs CCA, UE and selects the new power on unauthorized carrier wave to control in assuming LAA
Mode.
Step 604:UE uses below equation to calculate the emission maximum merit launching power: UE transmitting merit=UE
Rate × power coefficient.
Step 605:UE adjusts power coefficient according to the UE number of scheduling.
Such as, when the UE number of scheduling is equal to 1, can power coefficient be separately 1, when UE of scheduling
Number more than 1, then uses the power coefficient of high-level signaling notice.
Fig. 7 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention seven, as
Shown in Fig. 7, described unauthorized resource ascending power control method comprises the following steps:
Step 701: base station sends instruction information and comprises power coefficient to UE, instruction information.
Step 702:UE receives the instruction information that base station sends, and UE determines power control according to power coefficient
Mode processed.
Such as power coefficient is that a certain particular value, such as power coefficient are equal to 0, then use and select LTE/LTE-A
The existing power control mode of system, when power coefficient is not equal to 0, then uses the new merit on unauthorized carrier wave
Rate control mode.The embodiment of the present invention assumes that power coefficient is not equal to 0.
Step 703:UE uses below equation to calculate transmitting power: UE transmitting, and power=(maximum of UE is sent out
Penetrate the RB number in power/whole bandwidth) × RB number × power coefficient of taking.
Present invention also offers a kind of embodiment, UE is scheduling by base station, it is assumed that UE1 takies subband 1～4,
UE2 takies subband 5～8, and subband 1～4 is non-reuse mode, and subband 5～8 is reuse mode, and base station is given
UE1 distributes relatively high emission, distributes relatively low transmitting power to UE2, and the power coefficient of such as UE1 is configured to
1.25, UE2 power coefficients are configured to 0.8.Base station is sent to UE power coefficient.
UE receives the power coefficient that base station sends, and transmitting power: UE transmitting is calculated according to the following equation
RB number × the power of power=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
Coefficient.
The unauthorized resource upload control method that the present invention provides solves LTE and carries out up at unauthorized carrier wave
During data transmission, the particular problem of uplink power resource waste, improves the upstream performance of unlicensed spectrum.
Fig. 8 is the schematic flow sheet of the unauthorized resource ascending power control method of the embodiment of the present invention eight, institute
State unauthorized resource ascending power control method and be applied to base station side, as shown in Figure 8, described unauthorized resource
Ascending power control method comprises the following steps:
Step 801: send instruction information to UE, so that described UE carries out up according to described instruction information
Power controls.
Wherein, described instruction information includes at least one of following information: whether perform CCA's in LAA
Pattern configurations signaling, power control mode indication signaling, whether there is the pattern that multiple UE transmits simultaneously and refer to
Show signaling, power coefficient, the UE number indication signaling of access, the UE number indication signaling of scheduling, with
Time the UE number indication signaling of transmission, the UE numbers of once at most scheduling.
In the embodiment of the present invention, described to UE send instruction information, including:
Instruction information is sent to UE by physical layer signaling；Or,
Instruction information is sent to UE by high-level signaling；Or,
Unauthorized carrier wave sends the Seize ACK message of carrying instruction information to UE.
In such scheme, the multiple signalings in the instruction information that UE sends can use identical or different
Mode sends.
In the embodiment of the present invention, described power coefficient is calculated according at least one of following information: access
UE number, the UE number of scheduling, once at most the UE number of scheduling, each UE distribution wireless
Resource, path loss, power accumulation in CCA measured value, whole bandwidth and.、
In the embodiment of the present invention, base station launches power spectrum according to predetermined way to UE distribution；Or, when whole
When using non-reuse mode to dispatch in individual bandwidth, it is higher than the transmitting power spectrum of predetermined value to UE distribution；When adopting
When dispatching by part-reuse mode, distribute the transmitting power spectrum higher than predetermined value to the UE of non-reuse, right
The UE distribution of reuse is less than the transmitting power spectrum of predetermined value.
Fig. 9 is the structure composition schematic diagram of the UE of the embodiment of the present invention, as it is shown in figure 9, described UE bag
Include:
Receive unit 91, for receiving the instruction information that base station sends；
Select unit 92, for the instruction information sent according to base station, select power control mode；
Processing unit 93, at least one calculating according to following information and the transmitting power of adjustment UE:
The described instruction information that receives from base station, the maximum transmission power of UE, path loss, CCA measured value, merit
Rate accumulation and.
In an embodiment of the present invention, described instruction information includes at least one of following information: authorize auxiliary
Access and whether perform the pattern configurations signaling of CCA, power control mode indication signaling, whether inside LAA
Exist pattern indication signaling that multiple UE transmits simultaneously, power coefficient, the UE number indication signaling of access,
The UE number indication signaling of scheduling, the UE number indication signaling simultaneously transmitted, the UE of once at most scheduling
Number.
In an embodiment of the present invention, described selection unit 92 includes:
First selects subelement 921, for when whether performing CCA's in the LAA in described instruction information
When performing CCA in pattern configurations signaling instruction LAA, select the power control mode on unauthorized carrier wave；
Second selects subelement 922, for when whether performing CCA's in the LAA in described instruction information
When not performing CCA in pattern configurations signaling instruction LAA, select in Long Term Evolution LTE/LTE-A agreement
Power control mode.
In an embodiment of the present invention, described processing unit 93 includes:
Computation subunit 931, for calculating the transmitting power of UE according to below equation:
Maximum transmission power × the power coefficient of the transmitting power=UE of UE；Or,
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number × power coefficient；Or,
The maximum transmission power of the transmitting power=UE of UE；Or,
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number；Or,
Maximum transmission power/UE the number of the transmitting power=UE of UE, wherein, UE number is access
UE number or the UE number being scheduled or the UE number simultaneously transmitted.
In an embodiment of the present invention, described processing unit 93 includes: control subelement 932, for working as road
When damaging higher than pre-determined threshold, transmitting power current for UE is improved；When CCA measured value raises, will
Transmitting power current for UE reduces；When CCA measured value reduces, transmitting power current for UE is improved.
In an embodiment of the present invention, described processing unit 93 includes: adjust subelement 933, for when whole
When the power accumulation of individual bandwidth and the maximum transmission power more than UE, adjust CCA thresholding or readjust
Launch power, so that the power accumulation of whole bandwidth and the maximum transmission power less than UE.
It will be appreciated by those skilled in the art that the realization of each unit in the UE shown in Fig. 9 and subelement thereof
Function can refer to the associated description of aforementioned unauthorized resource ascending power control method and understands.Shown in Fig. 9
Each unit in UE and the function of subelement thereof can be realized by the program that runs on processor, it is possible to logical
Cross concrete logic circuit and realize.
Figure 10 is the structure composition schematic diagram of the base station of the embodiment of the present invention, as shown in Figure 10, described base station
Including:
Transmitting element 11, for sending instruction information to UE, so that described UE is according to described instruction information
Carry out uplink power control；
Wherein, described instruction information includes at least one of following information: whether perform CCA's in LAA
Pattern configurations signaling, power control mode indication signaling, whether there is the pattern that multiple UE transmits simultaneously and refer to
Show signaling, power coefficient, the UE number indication signaling of access, the UE number indication signaling of scheduling, with
Time the UE number indication signaling of transmission, the UE numbers of once at most scheduling.
Described transmitting element 11, is additionally operable to send instruction information by physical layer signaling to UE；Or,
Instruction information is sent to UE by high-level signaling；Or,
Unauthorized carrier wave sends the Seize ACK message of carrying instruction information to UE.
Multiple signalings in the instruction information that UE sends can send in the way of employing is identical or different.
Described power coefficient is calculated according at least one of following information: the UE number of access, scheduling
UE number, once at most the UE number of scheduling, the Radio Resource of each UE distribution, path loss, CCA
Power accumulation in measured value, whole bandwidth and.
Described base station also includes: control unit 12, launches power spectrum according to predetermined way to UE distribution；Or
Person, when using non-reuse mode to dispatch in whole bandwidth, is higher than the transmitting power of predetermined value to UE distribution
Spectrum；When using part-reuse mode to dispatch, distribute the transmitting merit higher than predetermined value to the UE of non-reuse
Rate is composed, and distributes the transmitting power spectrum less than predetermined value to the UE of reuse.
Figure 11 is the structure composition schematic diagram of the unauthorized resource upstream power control system of the embodiment of the present invention,
As shown in figure 11, described system includes:
Base station 21, for sending instruction information to UE；
UE22, for receiving the instruction information that base station 21 sends；The instruction information sent according to base station 21,
Select power control mode；At least one according to following information calculates and the transmitting power of adjustment UE22:
The described instruction information that receives from base station 21, the maximum transmission power of UE, path loss, clear channel assessment (CCA)
CCA measured value, power accumulation and.
In an embodiment of the present invention, described base station 21, it is additionally operable to send out to UE22 distribution according to predetermined way
Penetrate power spectrum；Or, when using non-reuse mode to dispatch in whole bandwidth, to UE22 distribution higher than pre-
The transmitting power spectrum of definite value；When using part-reuse mode to dispatch, distribute height to the UE22 of non-reuse
In the transmitting power spectrum of predetermined value, distribute the transmitting power spectrum less than predetermined value to the UE22 of reuse.
The above, only presently preferred embodiments of the present invention, it is not intended to limit the protection model of the present invention
Enclose, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, all should
Within being included in protection scope of the present invention.
Claims (24)
1. a unauthorized resource ascending power control method, it is characterised in that described method includes:
Receive the instruction information that base station sends；
The instruction information sent according to base station, selects power control mode；
At least one according to following information calculates and adjusts the transmitting power of terminal UE: receive from base station
Described instruction information, the maximum transmission power of UE, path loss, clear channel assessment (CCA) CCA measured value, merit
Rate accumulation and.
Unauthorized resource ascending power control method the most according to claim 1, it is characterised in that institute
State instruction information and include at least one of following information: authorize auxiliary to access inside LAA and whether perform CCA
Pattern configurations signaling, power control mode indication signaling, whether there is the pattern that multiple UE transmits simultaneously
Indication signaling, power coefficient, the UE number indication signaling of access, the UE number indication signaling of scheduling,
The UE number indication signaling simultaneously transmitted, the UE number once at most dispatched.
Unauthorized resource ascending power control method the most according to claim 2, it is characterised in that institute
State the instruction information sent according to base station, select power control mode, including:
In the pattern configurations signaling whether performing CCA in the LAA in described instruction information indicates LAA
When performing CCA, select the power control mode on unauthorized carrier wave；
In the pattern configurations signaling whether performing CCA in the LAA in described instruction information indicates LAA
When not performing CCA, select the power control mode in Long Term Evolution LTE/LTE-A agreement.
Unauthorized resource ascending power control method the most according to claim 2, it is characterised in that root
Descend the transmitting power of at least one calculating UE of information according to this, including: calculate UE's according to below equation
Transmitting power:
Maximum transmission power × the power coefficient of the transmitting power=UE of UE；Or,
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number × power coefficient；Or,
The maximum transmission power of the transmitting power=UE of UE；Or,
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number；Or,
Maximum transmission power/UE the number of the transmitting power=UE of UE, wherein, UE number is access
UE number or the UE number being scheduled or the UE number simultaneously transmitted.
5., according to the unauthorized resource ascending power control method described in any one of claim 2 to 4, it is special
Levy and be, according to following information at least one adjust UE transmitting power, including:
When path loss is higher than pre-determined threshold, transmitting power current for UE is improved；
When CCA measured value raises, transmitting power current for UE is reduced；When CCA measured value reduces
Time, transmitting power current for UE is improved.
6., according to the unauthorized resource ascending power control method described in any one of claim 2 to 4, it is special
Levying and be, described method also includes:
When the power accumulation when whole bandwidth and maximum transmission power more than UE, adjust CCA thresholding or
Readjust transmitting power, so that the power accumulation of whole bandwidth and the maximum transmission power less than UE.
7. a unauthorized resource ascending power control method, it is characterised in that described method includes:
Instruction information is sent, so that described UE carries out uplink power control according to described instruction information to UE；
Wherein, described instruction information includes at least one of following information: whether perform CCA's in LAA
Pattern configurations signaling, power control mode indication signaling, whether there is the pattern that multiple UE transmits simultaneously and refer to
Show signaling, power coefficient, the UE number indication signaling of access, the UE number indication signaling of scheduling, with
Time the UE number indication signaling of transmission, the UE numbers of once at most scheduling.
Unauthorized resource ascending power control method the most according to claim 7, it is characterised in that institute
State and send instruction information to UE, including:
Instruction information is sent to UE by physical layer signaling；Or,
Instruction information is sent to UE by high-level signaling；Or,
Unauthorized carrier wave sends the Seize ACK message of carrying instruction information to UE.
Unauthorized resource ascending power control method the most according to claim 8, it is characterised in that to
Multiple signalings in the instruction information that UE sends can send in the way of employing is identical or different.
Unauthorized resource ascending power control method the most according to claim 7, it is characterised in that
Described power coefficient is calculated according at least one of following information: the UE number of access, the UE of scheduling
Number, the once at most UE number of scheduling, the Radio Resource of each UE distribution, path loss, CCA measurement
Value, power accumulation in whole bandwidth and.
11. according to the unauthorized resource ascending power control method described in any one of claim 7 to 10, its
Being characterised by, described method also includes: launch power spectrum according to predetermined way to UE distribution；Or,
When using non-reuse (non-resource multiplexing) mode to dispatch in whole bandwidth, to UE distribution higher than predetermined
The transmitting power spectrum of value；When using part-reuse (part resource multiplexing) mode to dispatch, to non-reuse's
The UE of reuse (resource multiplex), higher than the transmitting power spectrum of predetermined value, is distributed less than predetermined value by UE distribution
Launch power spectrum.
12. 1 kinds of UE, it is characterised in that described UE includes:
Receive unit, for receiving the instruction information that base station sends；
Select unit, for the instruction information sent according to base station, select power control mode；
Processing unit, at least one calculating according to following information and the transmitting power of adjustment UE: from
Described instruction information that base station receives, the maximum transmission power of UE, path loss, CCA measured value, power
Accumulation and.
13. UE according to claim 12, it is characterised in that described instruction information includes following letter
At least one of breath: authorize auxiliary to access inside LAA and whether perform the pattern configurations signaling of CCA, power
Control mode indication signaling, whether exist pattern indication signaling that multiple UE transmits simultaneously, power coefficient,
Access UE number indication signaling, the UE number indication signaling of scheduling, transmit simultaneously UE number instruction
Signaling, the UE number of once at most scheduling.
14. UE according to claim 13, it is characterised in that described selection unit includes:
First selects subelement, for when the pattern whether performing CCA in the LAA in described instruction information
When performing CCA in configuration signal instruction LAA, select the power control mode on unauthorized carrier wave；
Second selects subelement, for when the pattern whether performing CCA in the LAA in described instruction information
When not performing CCA in configuration signal instruction LAA, select the power in Long Term Evolution LTE/LTE-A agreement
Control mode.
15. UE according to claim 13, it is characterised in that described processing unit includes:
Computation subunit, for calculating the transmitting power of UE according to below equation:
Maximum transmission power × the power coefficient of the transmitting power=UE of UE；Or,
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number × power coefficient；Or,
The maximum transmission power of the transmitting power=UE of UE；Or,
The transmitting power of UE=(the RB number in the maximum transmission power of UE/whole bandwidth) × take
RB number；Or,
Maximum transmission power/UE the number of the transmitting power=UE of UE, wherein, UE number is access
UE number or the UE number being scheduled or the UE number simultaneously transmitted.
16. according to the UE described in any one of claim 13 to 15, it is characterised in that described processing unit
Including: control subelement, for when path loss is higher than pre-determined threshold, being improved by transmitting power current for UE；
When CCA measured value raises, transmitting power current for UE is reduced；When CCA measured value reduces,
Transmitting power current for UE is improved.
17. according to the UE described in any one of claim 13 to 15, it is characterised in that described processing unit
Including: adjust subelement, when the power accumulation when whole bandwidth and the maximum transmission power more than UE,
Adjust CCA thresholding or readjust transmitting power, so that the power accumulation of whole bandwidth and less than UE
Maximum transmission power.
18. 1 kinds of base stations, it is characterised in that described base station includes:
Transmitting element, for sending instruction information to UE, so that described UE enters according to described instruction information
Row uplink power control；
Wherein, described instruction information includes at least one of following information: whether perform CCA's in LAA
Pattern configurations signaling, power control mode indication signaling, whether there is the pattern that multiple UE transmits simultaneously and refer to
Show signaling, power coefficient, the UE number indication signaling of access, the UE number indication signaling of scheduling, with
Time the UE number indication signaling of transmission, the UE numbers of once at most scheduling.
19. base stations according to claim 18, it is characterised in that described transmitting element, are additionally operable to lead to
Cross physical layer signaling and send instruction information to UE；Or,
Instruction information is sent to UE by high-level signaling；Or,
Unauthorized carrier wave sends the Seize ACK message of carrying instruction information to UE.
20. base stations according to claim 19, it is characterised in that in the instruction information that UE sends
Multiple signalings can by use identical or different in the way of send.
21. base stations according to claim 18, it is characterised in that described power coefficient is according to following letter
At least one of breath is calculated: the UE number of access, the UE number of scheduling, once at most scheduling
The Radio Resource of UE number, each UE distribution, path loss, the power in CCA measured value, whole bandwidth
Accumulation and.
22. according to the base station described in any one of claim 18 to 21, it is characterised in that described base station is also
Including: control unit, launch power spectrum according to predetermined way to UE distribution；Or, when in whole bandwidth
When using non-reuse mode to dispatch, it is higher than the transmitting power spectrum of predetermined value to UE distribution；When using part-reuse
When mode is dispatched, distribute the transmitting power spectrum higher than predetermined value, the UE to reuse to the UE of non-reuse
Distribution is less than the transmitting power spectrum of predetermined value.
23. 1 kinds of unauthorized resource upstream power control system, it is characterised in that described system includes:
Base station, for sending instruction information to UE；
UE, for receiving the instruction information that base station sends；The instruction information sent according to base station, selects power
Control mode；At least one according to following information calculates and adjusts the transmitting power of UE: receive from base station
The described instruction information that arrives, the maximum transmission power of UE, path loss, clear channel assessment (CCA) CCA measured value,
Power accumulation and.
24. unauthorized resource upstream power control system according to claim 13, it is characterised in that
Described base station, is additionally operable to launch power spectrum according to predetermined way to UE distribution；Or, when whole band
When using non-reuse mode to dispatch on width, it is higher than the transmitting power spectrum of predetermined value to UE distribution；Work as employing
When part-reuse mode is dispatched, distribute the transmitting power spectrum higher than predetermined value to the UE of non-reuse, to reuse
UE distribution less than the transmitting power spectrum of predetermined value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510245540.0A CN106304298A (en) | 2015-05-14 | 2015-05-14 | A kind of unauthorized resource ascending power control method, terminal, base station and system |
| PCT/CN2016/076332 WO2016180077A1 (en) | 2015-05-14 | 2016-03-15 | Control method, terminal, base station and system for uplink power and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510245540.0A CN106304298A (en) | 2015-05-14 | 2015-05-14 | A kind of unauthorized resource ascending power control method, terminal, base station and system |
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| Publication Number | Publication Date |
|---|---|
| CN106304298A true CN106304298A (en) | 2017-01-04 |
Family
ID=57247769
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|---|---|---|---|
| CN201510245540.0A Withdrawn CN106304298A (en) | 2015-05-14 | 2015-05-14 | A kind of unauthorized resource ascending power control method, terminal, base station and system |
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| WO (1) | WO2016180077A1 (en) |
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| WO2018210195A1 (en) * | 2017-05-17 | 2018-11-22 | 华为技术有限公司 | Method, device and system for transmitting and receiving indication information |
| CN109792319A (en) * | 2018-12-20 | 2019-05-21 | 北京小米移动软件有限公司 | Ascending transmission method and device |
| WO2022148235A1 (en) * | 2021-01-08 | 2022-07-14 | 展讯通信（上海）有限公司 | Power control method and related device |
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