CN110446252A - Energy threshold for orienting LBT determines method, orientation LBT method and device, storage medium, terminal, base station - Google Patents
Energy threshold for orienting LBT determines method, orientation LBT method and device, storage medium, terminal, base station Download PDFInfo
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- CN110446252A CN110446252A CN201910753523.6A CN201910753523A CN110446252A CN 110446252 A CN110446252 A CN 110446252A CN 201910753523 A CN201910753523 A CN 201910753523A CN 110446252 A CN110446252 A CN 110446252A
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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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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Abstract
A kind of energy threshold for orienting LBT determines method, orientation LBT method and device, storage medium, terminal, base station, and the energy threshold determines that method comprises determining that this is oriented the first of LBT and monitors direction；The zoom factor of the determining and described first monitoring directional correlation, the zoom factor are used to adjust the preferred energy threshold value when being oriented LBT on first monitoring direction, zoom factor and monitoring direction one-to-one correspondence；The preferred energy threshold value is obtained based on the zoom factor and standard energy threshold calculations.The scheme provided through the invention is capable of providing a kind of case of energy detection schemes suitable for orienting LBT, to better adapt to the data transmit-receive requirement under high-frequency communication scene.
Description
Technical field
The present invention relates to fields of communication technology, determine method more particularly to a kind of energy threshold for orienting LBT, determine
To LBT method and device, storage medium, terminal, base station.
Background technique
Existing protocol version (Release 16, abbreviation R16) and before listem-before-talk (Listen involved in version
Before Talk, abbreviation LBT) mechanism do not consider specific directional information, it is believed that it is the monitoring of omnidirectional.
In the version in future, especially in the scene of high-frequency communication, because to resist path loss (pathloss), data
Sending maximum probability can be by the way of directive sending.Corresponding, it is specific only to monitor that the monitoring rule that LBT is monitored is also required to variation
One or more directions.At this point, as long as terminal or base station can in specific one or multiple directions if LBT success
To send transmission.
According to orientation LBT, corresponding case of energy detection schemes is also required to be adjusted therewith, with better adaptation orientation
LBT scene, but the prior art not yet considers this point.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of improved case of energy detection schemes, can preferably be suitable for orientation
LBT scene, to meet the data transmit-receive requirement under high-frequency communication scene.
In order to solve the above technical problems, the embodiment of the present invention, which provides a kind of energy threshold for orienting LBT, determines method,
Comprise determining that this is oriented the first of LBT and monitors direction；The determining zoom factor that directional correlation is monitored with described first,
The zoom factor is used to adjust the preferred energy threshold value when being oriented LBT on first monitoring direction, zoom factor
It is corresponded with direction is monitored；The preferred energy threshold value is obtained based on the zoom factor and standard energy threshold calculations.
Optionally, described that the preferred energy threshold value packet is obtained based on the zoom factor and standard energy threshold calculations
It includes: one or more parameters for the standard energy threshold value to be calculated being adjusted based on the zoom factor；Root
According to one or more parameters adjusted and the calculation formula of the standard energy threshold value, the preferred energy threshold is calculated
Value.
Optionally, the parameter includes: the first transmission power, and first transmission power is the emission maximum function of base station
Rate, actual transmission power or the maximum transmission power on current carrier or fractional bandwidth；It is described according to one adjusted
Or the calculation formula of multiple parameters and the standard energy threshold value, it includes: based on such as that the preferred energy threshold value, which is calculated,
The preferred energy threshold value is calculated in lower formula:Wherein, X'Thres_maxIt is described
Preferred energy threshold value, BW are the bandwidth of single carrier wave or fractional bandwidth, TmaxFor the candidate value determined according to BW, a, b, TAAnd PHFor
Preset value, α are the zoom factor, PTXFor first transmission power, α × PTXFor first transmission power adjusted.
Optionally, the parameter is at least selected from: single carrier wave or the bandwidth of fractional bandwidth, the first transmission power and according to
The candidate value that the bandwidth determines, wherein first transmission power be the maximum transmission power of base station, actual transmission power or
Maximum transmission power of the person on current carrier or fractional bandwidth.
Optionally, first monitoring direction is determined according to the direction of the LBT carried out for uplink.
Optionally, it is described first monitor direction it is associated with single beam direction, alternatively, it is described first monitoring direction with it is more
The directional correlation connection of a beam direction synthesis.
Optionally, the one-to-one relationship in the zoom factor and monitoring direction is based on predefined determination.
Optionally, the zoom factor of the determination and the first monitoring directional correlation includes: reception high-level signaling, described
High-level signaling includes at least the described first zoom factor for monitoring directional correlation；First prison is determined according to the high-level signaling
Listen the zoom factor of directional correlation.
Optionally, the high-level signaling includes multiple monitoring directions and each zoom factor for monitoring directional correlation；Institute
State according to the high-level signaling determine it is described first monitoring directional correlation zoom factor include: from the multiple monitoring direction with
And described first is selected to monitor the corresponding zoom factor in direction in each zoom factor for monitoring directional correlation.
Optionally, this first monitoring direction for being oriented LBT of the determination includes: and receives to indicate information, and according to
The instruction information determines that described first monitors direction.
Optionally, there are one or more uplink in by the initial same Channel holding time of downlink transfer
When, uplink orients the associated zoom factor of LBT and is determined according to the zoom factor that downlink orients LBT.
Optionally, the orientation LBT includes: uplink orientation LBT；Downlink orients LBT.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of orientation LBT method, comprising: use above-mentioned energy
Amount Threshold determines the preferred energy threshold value；It is monitored on direction described first, using the preferred energy threshold value
It is oriented LBT.
Optionally, described to monitor on direction described first, being oriented LBT using the preferred energy threshold value includes:
It is monitored on direction described first, carries out energy measuring using the energy detection threshold no more than the preferred energy threshold value.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of determining dress of the energy threshold for orienting LBT
It sets, comprising: the first determining module monitors direction for determining that this is oriented the first of LBT；Second determining module, is used for
The determining zoom factor that directional correlation is monitored with described first, the zoom factor monitor direction described first for adjusting
It is oriented preferred energy threshold value when LBT, zoom factor and monitoring direction correspond；Processing module, for based on described
Zoom factor and standard energy threshold calculations obtain the preferred energy threshold value.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of orientation LBT device, comprising: above-mentioned energy cut-off
It is worth determining device, for determining the preferred energy threshold value；LBT module is oriented, for monitoring direction described first, is used
The preferred energy threshold value is oriented LBT.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of storage medium, it is stored thereon with computer and refers to
The step of enabling, the above method executed when the computer instruction is run.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of terminal, including memory and processor, it is described
The computer instruction that can be run on the processor is stored on memory, the processor runs the computer instruction
The step of Shi Zhihang above method.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of base station, including memory and processor, it is described
The computer instruction that can be run on the processor is stored on memory, the processor runs the computer instruction
The step of Shi Zhihang above method.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
The embodiment of the present invention provides a kind of energy threshold for orienting LBT and determines method, comprising: determines that this is determined
Direction is monitored to the first of LBT；The determining zoom factor that directional correlation is monitored with described first, the zoom factor is for adjusting
Preferred energy threshold value when being oriented LBT on first monitoring direction, zoom factor and monitoring direction correspond；Base
The preferred energy threshold value is obtained in the zoom factor and standard energy threshold calculations.Compared with it is existing for omnidirectional LBT design
The scheme of case of energy detection schemes, the embodiment of the present invention can preferably be suitable for orientation LBT scene, to meet high-frequency communication scene
Under data transmit-receive requirement.Specifically, standard energy threshold value as defined in existing protocol does not consider LBT directional information.Thus, In
In the embodiment of the present invention, suitable zoom factor is determined according to the first monitoring direction of this orientation LBT, by standard energy threshold value
It adjusts to the preferred energy threshold value for monitoring direction more suitable for first, monitors effect to optimize the LBT for monitoring direction first.
Further, based on the zoom factor to one or more parameters for the standard energy threshold value to be calculated
It is adjusted；According to one or more parameters adjusted and the calculation formula of the standard energy threshold value, institute is calculated
State preferred energy threshold value.As a result, for there may be the parameters of difference in orientation LBT scene and omnidirectional's LBT scene, pass through contracting
It puts coefficient to be adjusted these parameters, so as to be more suitable for based on the preferred energy threshold value that these parameters are calculated in the first prison
The LBT in direction is listened to monitor.For example, in high-frequency communication scene, when orienting LBT base station on current carrier or fractional bandwidth most
Maximum transmission power of the base station on current carrier or fractional bandwidth when big transmission power is typically larger than omnidirectional LBT, therefore, it is possible to
The parameter is suitably amplified by zoom factor, preferred energy threshold value is calculated.
Detailed description of the invention
Fig. 1 is that a kind of energy threshold for orienting LBT of the embodiment of the present invention determines the flow chart of method；
Fig. 2 is the flow chart of a specific embodiment of step S103 in Fig. 1；
Fig. 3 is a kind of flow chart of orientation LBT method of the embodiment of the present invention；
Fig. 4 is a kind of for orienting the structural schematic diagram of the energy threshold determining device of LBT of the embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of orientation LBT device of the embodiment of the present invention.
Specific embodiment
As described in the background art, the prior art can not provide the case of energy detection schemes for being suitable for orienting LBT.
In order to solve the above technical problems, the embodiment of the present invention provides one kind for orienting LBT (referred to as directional
LBT beam-based LBT or non-omni LBT) energy threshold determine method, comprising: determine that this is determined
Direction is monitored to the first of LBT；The determining zoom factor that directional correlation is monitored with described first, the zoom factor adjustment is in institute
Preferred energy threshold value when being oriented LBT on the first monitoring direction is stated, zoom factor and monitoring direction correspond；Based on institute
It states zoom factor and standard energy threshold calculations obtains the preferred energy threshold value.
It will be appreciated by those skilled in the art that the scheme of the embodiment of the present invention can preferably be suitable for orientation LBT scene, with full
Data transmit-receive requirement under sufficient high-frequency communication scene.Specifically, standard energy threshold value as defined in existing protocol does not consider the side LBT
To information.Thus, in embodiments of the present invention, suitable zoom factor is determined according to the first monitoring direction of this orientation LBT,
By standard energy adjusting thresholds to the preferred energy threshold value for monitoring direction more suitable for first, direction is monitored first to optimize
LBT monitors effect.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
Fig. 1 is that a kind of energy threshold for orienting LBT of the embodiment of the present invention determines the flow chart of method.
The scheme of the present embodiment can be applied to orientation LBT scene, and the orientation LBT is compared with omnidirectional (omni-
Directional) for LBT or non-directional LBT, LBT monitoring is carried out in specific one or multiple directions.
The scheme of the present embodiment can be applied to high-frequency communication scene, to realize preferably anti-path loss effect.
The scheme of the present embodiment can be applied to 5G and newly eat dishes without rice or wine (New Radio, abbreviation NR, alternatively referred to as new wireless) system
System.
The scheme of the present embodiment can be applied to user equipment side, such as by user equipment (User Equipment, abbreviation
UE it) executes, LBT monitoring is carried out in specific one or multiple directions with the energy threshold determined based on this embodiment scheme.
Alternatively, the scheme of the present embodiment also can be applied to network side, such as executed by the base station of network side, to be based on this reality
It applies energy threshold that scheme determines and carries out LBT monitoring in specific one or multiple directions.
Specifically, in the present embodiment, with reference to Fig. 1, the energy threshold for orienting LBT determines that method may include
Following steps:
Step S101 determines that this is oriented the first of LBT and monitors direction；
Step S102, the determining zoom factor that directional correlation is monitored with described first, the zoom factor is for adjusting
Preferred energy threshold value when LBT is oriented on first monitoring direction, zoom factor and monitoring direction correspond；
Step S103 obtains the preferred energy threshold value based on the zoom factor and standard energy threshold calculations.
Wherein, energy threshold is referred to as energy detection threshold (Energy Detection Threshold), described
Energy threshold can be understood as the measurement of interference-tolerant degree.The numerical value of the energy threshold is bigger, shows the tolerance to interference
It is better, more it is easily accessed channel.
For example, the standard energy threshold value can be and be indicated in advance by base station or predetermined by agreement, UE carries out complete
To or the maximum value of energy detection threshold that can use of when non-directional LBT.Alternatively, the standard energy threshold value is also possible to base
It in default calculation formula, is voluntarily calculated by factors such as the UE channel conditions monitored as needed, the default calculating is public
Formula can be indicated by base station or agreement determines.
More specifically, in the case where orienting LBT scene, the energy threshold for orienting LBT can be with the monitoring side that needs to carry out LBT
To there are incidence relations, by the incidence relation, the zoom factor for calculating corresponding energy threshold, which can be carried on, to be directed to
It orients in the configuration in the monitoring direction of LBT and is indicated to UE.
In the present embodiment, the direction monitored is needed to be denoted as the first monitoring direction UE or base station this orientation LBT.It will show
There is the energy threshold as defined in agreement for omnidirectional LBT to be denoted as standard energy threshold value, direction optimization will be monitored for described first
Energy threshold adjusted is known as preferred energy threshold value.Wherein, the preferred energy threshold value can be in the standard energy threshold
On the basis of value, optimized according to first monitoring direction.
In one non-limiting embodiment, first monitoring direction can be what basis was carried out for uplink
What the reception wave beam direction (received beam, abbreviation Rx beam) of LBT determined.
In a change case, first monitoring direction can also be to be sent according to the uplink that UE or base station will carry out
The transmission wave beam direction (transmit beam, abbreviation Tx beam) determine.
It " direction " occurred in the embodiment of the present disclosure perhaps " beam direction " can be by TCI or high-level signaling
Channel state information reference signals (the Channel State Information- indicated in spatialRelationInfo
Reference Signal, abbreviation CSI-RS), channel-sounding signal (Sounding Reference Signal, abbreviation SRS),
Track reference signal (Tracking Reference Signal, abbreviation TRS), synchronization signal block (Synchronization
Signal/Physical Broadcast Channel Block, abbreviation SS/PBCH BLOCK, that is, SSB) and discovery ginseng
Examine the space of reference signal resource any one or more in signal (Discovery Reference Signal, abbreviation DRS)
Configuration (spatial configuration) distinguishes.Need to illustrate a bit, according to practical application scene, " direction " or
The instruction of person's " beam direction " is not limited to above-mentioned reference signal.In one non-limiting embodiment, it can be configured by sending
(Transmission Configuration Indicaton, the abbreviation TCI) state (TCI-state) of instruction and/or space are closed
It is that direction is monitored in information (SpatialRelationInfo) field instruction described first.
Specifically, the direction that UE or base station carry out LBT, which specifically can be, to be referred to by base station by high-level signaling or DCI
Show a TCI state, wherein base station co-located (Quasi-Colocation, the abbreviation QCL) type of standard received in TCI-state
The space of reference signal corresponding to D (typeD) (Reference Signal, abbreviation RS) receives parameter (spatial
Receiving parameter) Lai Jinhang LBT operation.Alternatively, base station passes through high-level signaling spatialRelationInfo
Or DCI indicates a RS, wherein base station carries out LBT's with the spatial receiving parameter for receiving the RS
Operation.Wherein the direction of LBT corresponds to described first and monitors direction.
Correspondingly, the step S101 may include step: receiving instruction information, and determine institute according to the instruction information
State the first monitoring direction.Wherein, the instruction information can carry foregoing fields.
For example, co-located (Quasi-Colocation, abbreviation QCL) type D (typeD) institute of standard in the TCI-state
Corresponding reference signal (Reference Signal, abbreviation RS) can be used for indicating first monitoring for receiving wave beam to UE
Direction.
In another example reference signal corresponding to the spatial relationship information can be used for indicating the transmission wave beam to UE
First monitors direction.
Specifically, it can serve to indicate that the reference signal in the first monitoring direction can be selected from aforementioned exemplary: channel status
Information reference signal (Channel State Information-Reference Signal, abbreviation CSI-RS), synchronization signal
Block (Synchronization Signal/Physical Broadcast Channel Block, abbreviation SS/PBCH BLOCK,
That is, SSB), demodulated reference signal (Demodulation Reference Signal, abbreviation DMRS) and channel detection ginseng
Examine signal (Sounding Reference Signal, abbreviation SRS).
In one non-limiting embodiment, first monitoring direction can be associated with single beam direction.Change speech
It, monitoring direction and beam direction can be correspondingly, and each beam direction that base station or UE will can need monitor divides
It is not determined as described first and monitors direction, and determines corresponding zoom factor respectively.Further, for every one first monitoring side
To being oriented LBT on corresponding beam direction using the preferred energy threshold value being calculated according to corresponding zoom factor.
In a change case, the directional correlation that first monitoring direction can be synthesized with multiple beam directions joins.It changes
Yan Zhi, multiple beam directions can correspond to same monitoring direction, and base station or UE can correspond to same prison for need to monitor
Multiple beam directions in direction are listened uniformly to be determined as one first monitoring direction, and unified determining corresponding zoom factor.Into one
Step ground, for the first monitoring direction, using the preferred energy threshold value being calculated according to corresponding zoom factor in each wave
LBT is oriented on Shu Fangxiang.Alternatively, can be using the preferred energy threshold value described in synthesized by each beam direction
LBT is oriented on first monitoring direction.
It in one non-limiting embodiment, can by determining corresponding zoom factor for each monitoring direction
Targetedly adjust the preferred preset threshold used when being oriented LBT on each monitoring direction.
In one non-limiting embodiment, the zoom factor can be with the one-to-one relationship for monitoring direction and be based on
Predefined determination.For example, multiple zoom factors and the corresponding monitoring of each zoom factor can be predefined in the protocol
Direction.As a result, in the step S102, base station or UE can provide quickly to determine that described first monitors direction pair based on agreement
The zoom factor answered.For the side UE, it is corresponding that the first monitoring direction is obtained without carrying out additional Signalling exchange with base station
Zoom factor, reduce signaling overheads.
In a change case, the step S102 may include step: receive high-level signaling, the high-level signaling is at least
The zoom factor for monitoring directional correlation including described first；Determine that described first monitors directional correlation according to the high-level signaling
Zoom factor.
For example, the zoom factor that the high-level signaling only can monitor directional correlation comprising described first, to minimize letter
Enable expense.In response to receiving the high-level signaling, information that UE can be carried in the preset field according to the high-level signaling
Obtain the zoom factor.
Further, base station can be the energy threshold meter that UE is configured to that uplink orients LBT by the high-level signaling
The zoom factor of calculation, the monitoring direction which orients LBT is first monitoring direction.Correspondingly, being according to the scaling
Number, the adjustable energy threshold monitored described first when direction carries out uplink orientation LBT monitoring of UE.
Further, the high-level signaling can be selected from: wireless heterogeneous networks (Radio Resource Control, letter
Claim RRC) signaling and MAC layer control unit (Media Access Control-Control Element, letter
Claim MAC-CE).
In a specific implementation, the high-level signaling may include the specific value of the zoom factor.
In another specific implementation, the zoom factor can be identified and distinguish by the way of indexing (index), UE
It is previously stored with the numerical value and corresponding index of each zoom factor.
Specifically, the high-level signaling can only include the index for being associated with the zoom factor that described first monitors direction.
In response to receiving the high-level signaling, UE can search the tool for determining corresponding zoom factor according to the index
Body numerical value.
In a change case, the high-level signaling may include multiple monitoring directions and each monitoring directional correlation
Zoom factor.In other words, multiple zoom factors and each zoom factor can be associated with by base station by way of high-level signaling
Monitoring direction be allocated to UE, when by execute the step S101 determine described first monitor direction after, UE can so that base
The incidence relation indicated in the high-level signaling determines that described first monitors the corresponding zoom factor in direction.
For example, different monitoring directions can be identified and distinguish in an indexed fashion, the high-level signaling may include more
The numerical value of a index for monitoring direction and each associated zoom factor of index.Specifically, the index (index) can be with
For the index value of reference signal, the reference signal can be selected from: CSI-RS, SSB, SRS, TRS and DRS.
Correspondingly, after determining that described first monitors direction the index in direction can be monitored from described according to described first
The described first rope for monitoring direction is selected in the index and associated zoom factor in multiple monitoring directions of high-level signaling instruction
Draw corresponding zoom factor.
In another example the zoom factor can also be identified and distinguish by the way of index, the high-level signaling be can wrap
Include the index of multiple indexes for monitoring direction and each associated zoom factor of index.UE is previously stored with each zoom factor
Numerical value and corresponding index.Thus, it is possible to further decrease signaling overheads.
In one non-limiting embodiment, the scheme of the present embodiment can also be applied to base station progress downlink orientation LBT
Scene.For example, when existing simultaneously uplink in same Channel holding time (Channel Occupancy Time, abbreviation COT)
When orienting LBT and downlink orientation LBT, the zoom factor can be the zoom factor for downlink orientation LBT.
Optionally, the COT can be downlink transfer initial access.
Specifically, the zoom factor used when base station can calculate the energy threshold for carrying out downlink orientation LBT passes through institute
It states high-level signaling and is allocated to UE.
If correspondingly, UE next in same Channel holding time carry out uplink orientation LBT operation, can root
Itself uplink orientation is adjusted according to the zoom factor of the first monitoring directional correlation of this downlink orientation LBT of base station instruction
The energy threshold used when LBT.
In one non-limiting embodiment, it may include steps of with reference to Fig. 2, the step S103:
Step S1031, based on the zoom factor to the one or more for the standard energy threshold value to be calculated
Parameter is adjusted；
Step S1032, according to one or more parameters adjusted and the calculation formula of the standard energy threshold value, meter
Calculation obtains the preferred energy threshold value.
For in orientation LBT scene and non-directional or omnidirectional's LBT scene, there may be the parameters of difference as a result, lead to
It crosses zoom factor to be adjusted these parameters, so as to be more suitable for based on the preferred energy threshold value that these parameters are calculated
One LBT for monitoring direction is monitored.
Specifically, the parameter can be at least selected from: single carrier wave or the bandwidth BW of fractional bandwidth, the first transmission power PTX
And the candidate value T that the BW is determinedmax.Wherein, the first transmission power PTXIt can be maximum transmission power, the reality of base station
Border sends power or the maximum transmission power on current carrier or fractional bandwidth.In practical applications, existing protocol provides
The calculation formula for the energy threshold of omnidirectional or non-directional LBT in include all parameters can be used as in the present embodiment
Need the object adjusted based on zoom factor.
For example, existing protocol regulation can be based on following formula when high-level signaling indicates to have other communication technologys
The standard energy threshold value is calculated:
Wherein, XThres_maxFor the standard energy threshold value, BW is the bandwidth of single carrier wave or fractional bandwidth, TmaxAccording to
The candidate value that BW is determined, a, b, TA、PHFor preset value, PTXFor the first transmission power, first transmission power, first hair
Penetrate maximum transmission power, actual transmission power that power is the base station or the maximum hair on current carrier or fractional bandwidth
Penetrate power.
In a specific implementation, when transmission has PDSCH, perhaps only DRS perhaps have DRS and meanwhile have PDSCH or
Only SSB, or when have SSB and PDSCH, different T can be corresponded toANumerical value.
For example, the preset value a can be -72dBm, the preset value b can be 20MHz, the preset value TAIt can be with
It is 5dB or 10dB, the preset value PHIt can be 23dBm.
For example, Tmax=10log10 (cBW), c are preset value, as c can be 3.16228 × 10-8mW/MHz。
It should be noted that the specific number of the parameter and each parameter that include in the calculation formula of aforesaid standards energy threshold
Value can provide to be adjusted according to existing and future agreement.Zoom factor described in the present embodiment can be used for adjusting described
Any or multiple parameters in the calculation formula of standard energy threshold value, the parameter can be standard energy as defined in existing protocol
Measure the parameter in the calculation formula of threshold value, or the calculation formula of updated standard energy threshold value as defined in future agreement
In parameter.
One specific implementation in, difference monitor directions corresponding to zoom factor, can be used for different parameters into
Row adjustment.
One specific implementation in, difference monitor directions can correspond to different zoom factors so that specific direction into
Most suitable preferred energy threshold value can be used when row orientation LBT.
In one non-limiting embodiment, needing the parameter adjusted based on zoom factor can be the base station current
Maximum transmission power on carrier wave or fractional bandwidth.For example, base station is in current carrier when orienting LBT in high-frequency communication scene
Or the maximum hair of base station on current carrier or fractional bandwidth when being typically larger than omnidirectional LBT of the maximum transmission power on fractional bandwidth
Power is penetrated, therefore, it is possible to suitably be amplified by zoom factor to the parameter, preferred energy threshold value is calculated.
Specifically, the preferred energy threshold value can be calculated based on following formula:
Wherein, X'Thres_maxFor the preferred energy threshold value, BW is the bandwidth of single carrier wave or fractional bandwidth, Tmax=
10log10 (cBW), a, b, c, TA、PHFor preset value, PTXFor first transmission power, α × PTXIt is adjusted first
Transmission power.
In a change case, the zoom factor can be also used for obtaining the standard energy threshold value in calculating process
To results of intermediate calculations and/or the standard energy threshold value itself be adjusted.
For example, being based on following formula, the standard energy threshold value itself can be adjusted using the zoom factor,
To obtain the preferred energy threshold value:
For another example following two formula are based on, it equally can be using the zoom factor to the standard energy threshold value sheet
Body is adjusted, to obtain the preferred energy threshold value:
Alternatively,
In another example being based on following three formula, the standard energy threshold value can calculated using the zoom factor
Results of intermediate calculations obtained in process is directed to min adjusted if the calculated result of min () function is adjusted with adjustment
The calculated result of () function and the calculated result of a+10log10 (BW/b) dBm execute output when max () function:
Alternatively,
Alternatively,
In one non-limiting embodiment, existing when other communication technologys are not present in high-level signaling instruction
The standard energy threshold value can be calculated based on following formula in agreement regulation:
Wherein, XThres_maxFor the standard energy threshold value, TmaxFor the candidate value determined according to BW, XrFor default maximum energy
Measure threshold value.The ceiling capacity threshold XrIt can be determined by agreement, alternatively, if agreement does not determine specific value, Xr=Tmax+
d.Wherein, d is preset value.For example, d can be 10dB.The unit of the default ceiling capacity threshold value is decibel milliwatt
(decibel relative to one milliwatt, abbreviation dBm).
In a specific implementation, standard energy threshold value itself can be adjusted using the zoom factor, it is as follows
State any of three formula:
Alternatively,
Alternatively,
Wherein, X'Thres_maxFor the preferred energy threshold value, α is the zoom factor.
In a specific implementation, the standard energy threshold value can be obtained in calculating process using the zoom factor
To results of intermediate calculations be adjusted.
For example, can one of the input value to min () function be adjusted.
Following three examples are described to input value TmaxThe concrete mode that+d is adjusted:
Alternatively,
Alternatively,
Following examples description is to the ceiling capacity threshold X as input valuerThe concrete mode being adjusted:
In a specific implementation, special parameter can be adjusted using the zoom factor.
For example, following examples description is to parameter TmaxThe concrete mode being adjusted:
In a change case, high-level signaling can indicate that there are use following formula to be calculated when other communication technologys
The standard energy threshold value:
Alternatively, base station can be without any instruction, at this point, UE, which can default, is calculated the mark using above-mentioned formula
Quasi-energy threshold value.Correspondingly, can be adjusted using scheme described in the present embodiment to above-mentioned formula, to obtain described preferably capable of
Measure threshold value.
By upper, using the scheme of the present embodiment, orientation LBT scene can be suitable for, preferably to meet high-frequency communication field
Data transmit-receive requirement under scape.Specifically, standard energy threshold value as defined in existing protocol does not consider LBT directional information.Thus,
In embodiments of the present invention, suitable zoom factor is determined according to the first monitoring direction of this orientation LBT, by standard energy threshold
Value is adjusted to the preferred energy threshold value for monitoring direction more suitable for first, monitors effect to optimize the LBT for monitoring direction first.
Fig. 3 is a kind of flow chart of orientation LBT method of the embodiment of the present invention.The scheme of the present embodiment can be applied to use
Family equipment side, is such as executed by UE.
Specifically, with reference to Fig. 3, orientation LBT method described in the present embodiment be may include steps of:
Step S301 is determined using method and technology scheme described in above-mentioned Fig. 1 and embodiment illustrated in fig. 2 and described preferably can
Measure threshold value；
Step S302 monitors on direction described first, is oriented LBT using the preferred energy threshold value.
More specifically, explaining for noun involved in the present embodiment can be with reference to the phase of above-mentioned Fig. 1 and embodiment illustrated in fig. 2
Description is closed, which is not described herein again.
By upper, using the scheme of the present embodiment, when carrying out the orientation LBT, UE can be according to the preferred energy threshold
Value more accurately judges that described first monitors channel or time slot duration (slot duration) the currently empty spare time on direction
(idle) still busy (busy).
It should be pointed out that being specifically directed the rule that standard whether LBT passes through can be directed to omnidirectional LBT with reference to the prior art
Fixed, this is not the emphasis of the embodiment of the present invention, thus it will not be described here.
In one non-limiting embodiment, the step S302 may include step: it is monitored on direction described first,
Energy measuring is carried out using the energy detection threshold no more than the preferred energy threshold value.
Specifically, terminal or the base station energy detection threshold used in energy measuring can be less than or equal to this
The X occurred in application embodimentThres_maxOr X'Thres_max。
For example, after determining the preferred energy threshold value, it can be using the preferred energy threshold value as maximum value, never more than this
A suitable numerical value is selected to be oriented LBT's as on first monitoring direction in the numberical range of preferred energy threshold value
Energy detection threshold.
In one non-limiting embodiment, in the energy for determining the LBT use of this orientation according to the preferred energy threshold value
After measuring detection threshold value, terminal or base described in the terminal time that perhaps base station (is denoted as X) if there is Y in a time interval
It stands and detects that energy is less than the energy detection threshold on first monitoring direction, it is considered that channel is idle；Instead
It, it is believed that channel is busy.
Optionally, if it is decided that channel be it is idle, the rollback of corresponding LBT counts (backoff counter) can be with
Carry out the operation for subtracting 1.Conversely, it is constant that rollback can be maintained to count.
For example, the value of X can be 9us, 16us or 25us.The value of Y can be 4us or 9us or 16us.
Fig. 4 is a kind of for orienting the structural schematic diagram of the energy threshold determining device of LBT of the embodiment of the present invention.Ability
Field technique personnel understand, for orienting 4 (the hereinafter referred to as energy threshold of energy threshold determining device of LBT described in the present embodiment
Determining device 4) it can be used for implementing method and technology scheme described in above-mentioned Fig. 1 and embodiment illustrated in fig. 2.
Specifically, with reference to Fig. 4, energy threshold determining device 4 described in the present embodiment may include: the first determining module 41,
Direction is monitored for determining that this is oriented the first of LBT；Second determining module 42, for the determining and first monitoring side
To associated zoom factor, the zoom factor is used to adjust preferred when being oriented LBT on first monitoring direction
Energy threshold, zoom factor and monitoring direction correspond；Processing module 43, for being based on the zoom factor and standard energy
Threshold calculations obtain the preferred energy threshold value.
Working principle, more contents of working method about the energy threshold determining device 4, are referred to above-mentioned figure
Associated description in 1 and Fig. 2, which is not described herein again.
Fig. 5 is a kind of structural schematic diagram of orientation LBT device of the embodiment of the present invention.It will be appreciated by those skilled in the art that this
Orientation LBT device 5 described in embodiment can be used for implementing method and technology scheme described in above-mentioned embodiment illustrated in fig. 3.
Specifically, with reference to Fig. 5, orientation LBT device 5 may include: above-mentioned energy threshold shown in Fig. 4 described in the present embodiment
Determining device 4, for determining the preferred energy threshold value；LBT module 51 is oriented, for monitoring direction described first, is adopted
LBT is oriented with the preferred energy threshold value.
About working principle, the more contents of working method of the orientation LBT device 5, it is referred in above-mentioned Fig. 3
Associated description, which is not described herein again.
Further, a kind of storage medium is also disclosed in the embodiment of the present invention, is stored thereon with computer instruction, the calculating
Above-mentioned Fig. 1 is executed to method and technology scheme described in embodiment illustrated in fig. 3 when machine instruction operation.Preferably, the storage is situated between
Matter may include non-volatile (non-volatile) memory or non-transient (non-transitory) memory etc.
Computer readable storage medium.The storage medium may include ROM, RAM, disk or CD etc..
Further, a kind of terminal, including memory and processor is also disclosed in the embodiment of the present invention, deposits on the memory
The computer instruction that can be run on the processor is contained, the processor executes above-mentioned when running the computer instruction
Fig. 1 is to method and technology scheme described in embodiment illustrated in fig. 3.Preferably, the terminal can be 5G user terminal.
Further, a kind of base station, including memory and processor is also disclosed in the embodiment of the present invention, deposits on the memory
The computer instruction that can be run on the processor is contained, the processor executes above-mentioned when running the computer instruction
Fig. 1 is to method and technology scheme described in embodiment illustrated in fig. 3.Preferably, the base station can be gNB.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Terminal in the embodiment of the present application can refer to various forms of user equipmenies, access terminal, subscriber unit, user
It stands, movement station, mobile station (mobile station, abbreviation MS), remote station, remote terminal, mobile device, user terminal, end
End equipment (terminal equipment), wireless telecom equipment, user agent or user apparatus.Terminal device can also be bee
Cellular telephone, wireless phone, session initiation protocol (Session Initiation Protocol, abbreviation SIP) phone, wireless sheet
Ground loop (Wireless Local Loop, abbreviation WLL) stands, personal digital assistant (Personal Digital
Assistant, abbreviation PDA), the handheld device with wireless communication function, calculate equipment or be connected to radio modem
Other processing equipments, mobile unit, wearable device, the public land of terminal device or the following evolution in the following 5G network
Terminal device etc. in ground mobile communications network (Public Land Mobile Network, abbreviation PLMN), the application are implemented
Example does not limit this.
It should be understood that the terms "and/or", only a kind of incidence relation for describing affiliated partner, expression can deposit
In three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.
In addition, character "/", expression forward-backward correlation object are a kind of relationships of "or" herein.
" multiple " occurred in the embodiment of the present application refer to two or more.
First, second occurred in the embodiment of the present application is equal to be described, and is only made signal and is used with description object is distinguished, without secondary
Point of sequence, does not indicate to be particularly limited to equipment number in the embodiment of the present application yet, cannot constitute and appoint to the embodiment of the present application
What is limited.
" connection " occurred in the embodiment of the present application, which refers to, the various connection types such as is directly connected to or is indirectly connected with, with reality
The communication of existing equipment room, the embodiment of the present application do not do any restriction to this.
" network " and " system " expression occurred in the embodiment of the present application is identical concept, and communication system is communication network
Network.
It should be understood that the processor can be central processing unit (Central Processing in the embodiment of the present invention
Unit, abbreviation CPU), which can also be other general processors, digital signal processor (Digital Signal
Processor, abbreviation DSP), specific integrated circuit (Application Specific Integrated Circuit, referred to as
ASIC), ready-made programmable gate array (Field Programmable Gate Array, abbreviation FPGA) or other are programmable
Logical device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or
The processor is also possible to any conventional processor etc..
It should also be understood that the memory in the embodiment of the present invention can be volatile memory or nonvolatile memory, or
It may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (Read-
Only Memory, abbreviation ROM), programmable read only memory (Programmable ROM, abbreviation PROM), erasable programmable
Read-only memory (Erasable PROM, abbreviation EPROM), electrically erasable programmable read-only memory (Electrically
EPROM, abbreviation EEPROM) or flash memory.Volatile memory can be random access memory (Random Access
Memory, abbreviation RAM), it is used as External Cache.By exemplary but be not restricted explanation, many forms it is random
Accessing memory (Random Access Memory, abbreviation RAM) can be used, such as static random access memory (Static
RAM, abbreviation SRAM), it is dynamic random access memory (Dynamic Random Access Memory, abbreviation DRAM), synchronous
Dynamic random access memory (Synchronous DRAM, abbreviation SDRAM), Double Data Rate synchronous dynamic random-access are deposited
Reservoir (Double Data Rate SDRAM, abbreviation DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory
(Enhanced SDRAM, abbreviation ESDRAM), synchronized links dynamic random access memory (Synchronous connection
To DRAM, abbreviation SLDRAM) and direct rambus random access memory (Direct Rambus RAM, abbreviation DR-
RAM)。
Above-described embodiment can be realized wholly or partly by software, hardware, firmware or any other combination.When
When using software realization, above-described embodiment can be realized entirely or partly in the form of a computer program product.The calculating
Machine program product includes one or more computer instructions or computer program.Load or execute on computers the computer
When instruction or computer program, entirely or partly generate according to process or function described in the embodiment of the present invention.The calculating
Machine can be general purpose computer, special purpose computer, computer network or other programmable devices.The computer instruction can
To store in a computer-readable storage medium, or computer-readable deposit from a computer readable storage medium to another
Storage media transmission, for example, the computer instruction can pass through from a web-site, computer, server or data center
Wired (such as infrared, wireless, microwave etc.) mode is passed to another web-site, computer, server or data center
It is defeated.The computer readable storage medium can be any usable medium that computer can access or include one or more
The data storage devices such as server, the data center of a usable medium set.The usable medium can be magnetic medium (example
Such as, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium.Semiconductor medium can be solid state hard disk.
It should be understood that magnitude of the sequence numbers of the above procedures are not meant to execute suitable in the various embodiments of the application
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
In several embodiments provided herein, it should be understood that disclosed methods, devices and systems, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the portion of each embodiment the method for the present invention
Step by step.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store
The medium of program code.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (19)
1. a kind of energy threshold for orienting LBT determines method characterized by comprising
Determine that this is oriented the first of LBT and monitors direction；
The determining zoom factor that directional correlation is monitored with described first, the zoom factor is for adjusting in the first monitoring side
It is oriented preferred energy threshold value when LBT upwards, zoom factor and monitoring direction correspond；
The preferred energy threshold value is obtained based on the zoom factor and standard energy threshold calculations.
2. energy threshold according to claim 1 determines method, which is characterized in that described to be based on the zoom factor and mark
Quasi-energy threshold calculations obtain the preferred energy threshold value
One or more parameters for the standard energy threshold value to be calculated are adjusted based on the zoom factor；
According to one or more parameters adjusted and the calculation formula of the standard energy threshold value, it is calculated described preferred
Energy threshold.
3. energy threshold according to claim 2 determines method, which is characterized in that the parameter includes: the first transmitting function
Rate, first transmission power are the maximum transmission power of base station, actual transmission power or in current carrier or fractional bandwidth
On maximum transmission power；The calculating according to one or more parameters adjusted and the standard energy threshold value is public
Formula, the preferred energy threshold value, which is calculated, includes:
The preferred energy threshold value is calculated based on following formula:
Wherein, X'Thres_maxFor the preferred energy threshold value, BW is the bandwidth of single carrier wave or fractional bandwidth, TmaxFor according to BW
Determining candidate value, a, b, TAAnd PHFor preset value, α is the zoom factor, PTXFor first transmission power, α × PTXFor
First transmission power adjusted.
4. energy threshold according to claim 2 determines method, which is characterized in that the parameter is at least selected from: single to carry
The bandwidth of wave or fractional bandwidth, the first transmission power and the candidate value determined according to the bandwidth, wherein first transmitting
Power is maximum transmission power, actual transmission power or the emission maximum function on current carrier or fractional bandwidth of base station
Rate.
5. energy threshold according to any one of claim 1 to 4 determines method, which is characterized in that described first monitors
Direction is determined according to the direction of the LBT carried out for uplink.
6. energy threshold according to any one of claim 1 to 4 determines method, which is characterized in that described first monitors
Direction is associated with single beam direction, alternatively, the directional correlation connection that first monitoring direction is synthesized with multiple beam directions.
7. energy threshold according to any one of claim 1 to 4 determines method, which is characterized in that the zoom factor
It is based on predefined determination with the one-to-one relationship for monitoring direction.
8. energy threshold according to any one of claim 1 to 4 determines method, which is characterized in that the determination and institute
The zoom factor for stating the first monitoring directional correlation includes:
High-level signaling is received, the high-level signaling includes at least the described first zoom factor for monitoring directional correlation；
The described first zoom factor for monitoring directional correlation is determined according to the high-level signaling.
9. energy threshold according to claim 8 determines method, which is characterized in that the high-level signaling includes multiple monitorings
Direction and each zoom factor for monitoring directional correlation；It is described to determine that described first monitors direction pass according to the high-level signaling
The zoom factor of connection includes:
Described first is selected to monitor direction pair from the multiple monitoring direction and each zoom factor for monitoring directional correlation
The zoom factor answered.
10. energy threshold according to any one of claim 1 to 4 determines method, which is characterized in that the determination this
The the first monitoring direction for being oriented LBT includes:
Instruction information is received, and determines that described first monitors direction according to the instruction information.
11. energy threshold according to any one of claim 1 to 4 determines method, which is characterized in that when by downlink transfer
There are when one or more uplink in initial same Channel holding time, uplink orients the associated zoom factor of LBT
It is determined according to the zoom factor that downlink orients LBT.
12. energy threshold according to any one of claim 1 to 4 determines method, which is characterized in that the orientation LBT
It include: uplink orientation LBT；Downlink orients LBT.
13. a kind of orientation LBT method characterized by comprising
The preferred energy threshold value is determined using any one of the claims 1 to 12 the method；
It is monitored on direction described first, LBT is oriented using the preferred energy threshold value.
14. orientation LBT method according to claim 13, which is characterized in that it is described to be monitored on direction described first, it adopts
Being oriented LBT with the preferred energy threshold value includes:
It is monitored on direction described first, carries out energy inspection using the energy detection threshold no more than the preferred energy threshold value
It surveys.
15. a kind of for orienting the energy threshold determining device of LBT characterized by comprising
First determining module monitors direction for determining that this is oriented the first of LBT；
Second determining module, for the determining zoom factor for monitoring directional correlation with described first, the zoom factor is for adjusting
The whole preferred energy threshold value when being oriented LBT on first monitoring direction, zoom factor and monitoring direction correspond；
Processing module, for obtaining the preferred energy threshold value based on the zoom factor and standard energy threshold calculations.
16. a kind of orientation LBT device characterized by comprising
Energy threshold determining device described in the claims 15, for determining the preferred energy threshold value；
LBT module is oriented, for monitoring direction described first, LBT is oriented using the preferred energy threshold value.
17. a kind of storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction executes when running
The step of any one of claim 1 to 14 the method.
18. a kind of terminal, including memory and processor, be stored on the memory to run on the processor
Computer instruction, which is characterized in that perform claim requires any one of 1 to 14 institute when the processor runs the computer instruction
The step of stating method.
19. a kind of base station, including memory and processor, be stored on the memory to run on the processor
Computer instruction, which is characterized in that perform claim requires any one of 1 to 14 institute when the processor runs the computer instruction
The step of stating method.
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