CN108882350A - A kind of Poewr control method and device - Google Patents
A kind of Poewr control method and device Download PDFInfo
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
-
- 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
-
- 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
Abstract
The invention discloses a kind of Poewr control method and device, the method includes：Determine that across link interference power compensation subitem, across the link interference power compensation subitem are used to adjust the uplink transmission power of UE；Based on across the link interference power compensation subitem, uplink power control algorithm is determined, wherein across the link interference power compensation subitem is introduced in the uplink power control algorithm；Based on the uplink power control algorithm, the uplink power of UE is controlled.
Description
Technical field
The present invention relates to the power control techniques more particularly to a kind of Poewr control method and dress in wireless communication field
It sets.
Background technique
In the past few decades, mobile communication experienced sends out from voice service to the leap of high-rate broadband data business
Exhibition.And with the further development of the new business such as mobile Internet and Internet of Things, people will to the new demand of mobile network
It further increases.On the one hand, it is contemplated that the following mobile network data flow will explosive growth.On the other hand, the equipment of magnanimity
Connection and diversified business and application be one of important feature of future broadband wireless communication systems, it is focusing on people communication with
Development will coexists in communication centered on machine.Based on the diversified business of future mobile communications and application demand, wireless communication
System must satisfy diversified requirement, such as be included in handling capacity, time delay, reliability, link density, cost, energy consumption, complexity
And the requirement in the multiple face such as covering.
The support of long term evolution (LTE, Long Term Evolution) system executes frequency division multiplexing on pairs of frequency spectrum
(for downlink working on a carrier wave, uplink work is in another load for (FDD, Frequency Division Duplex) operation
On wave).It also supports to execute time division multiplexing (TDD, Time Division Duplex) behaviour on a non-paired carrier wave simultaneously
Make.Traditional TDD mode of operation can only be (corresponding using the configuration mode of limited several uplink downlink subframe distribution
Configuration 0 arrives configuration6), and identical configuration is used between adjacent area, namely have identical transmission
Direction.Enhance traffic adaptive interference mitigation (eIMTA, enhanced Interference Mitigation and
Traffic Adapatation) can be semi-static (10ms or more) configuration LTE system uplink downlink direction, adjacent area it
Between the configuration mode that can be distributed using different TDD uplink downlink subframe, but these configuration modes be still limited to it is above-mentioned limited
Centralized configuration mode.In eIMTA, is configured based on predefined downlink (DL)/uplink (UL), define two classes
Time slot sets, namely fixed time slot sets and Flexible timeslot set, for distinguishing different types of inter-cell interference.For these two types
Different time slot sets configure different parameter sets, for carrying out uplink UL power control.
For the service efficiency for meeting the needs of business is quick self-adapted and further increasing frequency spectrum, the following channel radio
Letter system (such as 5G/New Radio system) should support dynamic TDD (dynamic TDD) operation, flexibly duplex (flexible
Duplexing or Duplexing flexibility) and full duplex (full Duplexing) operation.It is with dynamic TDD
Example, dynamic TDD operation refers to can dynamic on the up-link carrier or descending carrier on non-paired frequency spectrum or in paired spectrum
Or partly dynamically change the sending direction of upstream or downstream.Compare eIMTA, here dynamic TDD operation can support sub-frame level,
Or timeslot-level, even more dynamic sending direction changes.Moreover, dynamic TDD do not limit only with it is above-mentioned it is limited it is several up and down
The configuration mode of uplink subframe distribution, and scheduling uplink and downlink that can be more flexible is sent.
Here dynamic TDD is equivalent to flexibly duplex or duplexing flexible mechanism sometimes, alternatively, flexibly duplex or duplex spirit
Active mechanism includes dynamic TDD operation mode
Either dynamic TDD, flexibly duplex/duplexing flexibility or full duplex, all suffer from serious across link interference
(cross-link interference) problem.As shown in Figure 1, the uplink transmission of the UE2-1 in (a) can be to the downlink of UE1-1
Reception is caused across link interference namely user equipment to user equipment (UE-to-UE, User Equipment-to-User
Equipment) across link interference；(b) the downlink transmission of the gNB2 in can cause across link interference the uplink receiving of gNB1,
Namely base station is to base station (gNB-to-gNB, the next generation Node B-to-the next generation
Node B) across link interference.Network side is removed across link interference comprising gNB-to-gNB, also includes transmitting and receiving node to hair
Send receiving node (TRP-to-TRP, Transmission/Reception Point-to-Transmission/Reception
Point), access node is to access node (AP-to-AP, Access Point-to-Access Point) etc..
Standardisation process research with link interference in LTE is more, such as inter-cell interference cancellation (ICIC, Inter-Cell
Interference Cancellation), multipoint cooperative (CoMP, Coordinated Multiple Point) etc..Across link
The previous same link interference of interference difference, it has serious interference and influences big, direction change fastly and come without mature mechanism
The features such as solution.In following mobile communication system, these two types interference can all exist and have different characteristics.Traditional
There is no consider the influence across link interference for LTE power control algorithm.The prior art is for this problem not yet solution.
Summary of the invention
In order to solve the above technical problems, can reduce the embodiment of the invention provides a kind of Poewr control method and device
Base station to base station across link interference and/or UE to UE across link interference, to improve the performance of wireless communication system.
Poewr control method provided in an embodiment of the present invention, including：
Determine that across link interference power compensation subitem, across the link interference power compensation subitem are used to adjust the uplink of UE
Send power；
Based on across the link interference power compensation subitem, uplink power control algorithm is determined, wherein the uplink power
Across the link interference power compensation subitem is introduced in control algolithm；
Based on the uplink power control algorithm, the uplink power of UE is controlled.
In the embodiment of the present invention, across the link interference power compensation subitem is equal to δCLI, wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE.
In the embodiment of the present invention, across the link interference power compensation subitem is equal to (- 1)m·δCLI, wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIUE is characterized caused by adjacent UE across link interference
When, m=1.
In the embodiment of the present invention, across the link interference power compensation subitem is equal to θ δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used to promote the UE's
While row power interferes to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, reducing the upper of the UE
Row power while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE.
In the embodiment of the present invention, the θ is notified by least one of to the UE by base station or TRP：Radio resource
Control (RRC) signaling, media access control control unit (MAC CE), Downlink Control Information (DCI).
In the embodiment of the present invention, across the link interference power compensation subitem is equal to (- 1)m·θ·δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used to promote the UE's
While row power interferes to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, reducing the upper of the UE
Row power while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIUE is characterized caused by adjacent UE across link interference
When, m=1.
In the embodiment of the present invention, the δCLIOr δCLIAdjusted value notified by local area TRP to the UE.
In the embodiment of the present invention, the δCLIIt is determined by least one of following parameter：Across link interference level, with reference to letter
Number receive power (RSRP, Reference Signal Received Power), received signal strength indicator (RSSI,
Received Signal Strength Indicator), path loss (Pathloss), link interference level value in the same direction.
Power control device provided in an embodiment of the present invention, including：
First determination unit, for determining across link interference power compensation subitem, across link interference power compensation
Item is for adjusting the uplink transmission power of UE；
Second determination unit, for determining uplink power control algorithm based on across the link interference power compensation subitem,
Wherein, across the link interference power compensation subitem is introduced in the uplink power control algorithm；
Control unit controls the uplink power of UE for being based on the uplink power control algorithm.
In the embodiment of the present invention, across the link interference power compensation subitem is equal to δCLI, wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE.
In the embodiment of the present invention, across the link interference power compensation subitem is equal to (- 1)m·δCLI, wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIUE is characterized caused by adjacent UE across link interference
When, m=1.
In the embodiment of the present invention, across the link interference power compensation subitem is equal to θ δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used to promote the UE's
While row power interferes to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, reducing the upper of the UE
Row power while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE.
In the embodiment of the present invention, the θ is notified by least one of to the UE by base station or TRP：RRC signaling,
MAC CE、DCI。
In the embodiment of the present invention, across the link interference power compensation subitem is equal to (- 1)m·θ·δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used to promote the UE's
While row power interferes to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, reducing the upper of the UE
Row power while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIUE is characterized caused by adjacent UE across link interference
When, m=1.
In the embodiment of the present invention, the δCLIOr δCLIAdjusted value notified by local area TRP to the UE.
In the embodiment of the present invention, the δCLIIt is determined by least one of following parameter：Across link interference level, RSRP,
RSSI, path loss, link interference level value in the same direction.
In the technical solution of the embodiment of the present invention, across link interference power compensation subitem, across the link interference function are determined
Rate compensation subitem is used to adjust the uplink transmission power of UE；Based on across the link interference power compensation subitem, uplink function is determined
Rate control algolithm, wherein across the link interference power compensation subitem is introduced in the uplink power control algorithm；Based on described
Uplink power control algorithm controls the uplink power of UE.Using the technical solution of the embodiment of the present invention, neighbour can be fought
Area TRP DL is sent to the received interference of local area TRP UL, guarantees the performance of local area UL, while the UL for reducing this UE is sent to neighbour
The received influence of UE DL.
Detailed description of the invention
Attached drawing generally shows each embodiment discussed herein by way of example and not limitation.
Fig. 1 is the schematic diagram of a scenario across link interference (cross-link interference)；
Fig. 2 is the flow diagram of the Poewr control method of the embodiment of the present invention；
Fig. 3 is the structure composition schematic diagram of the power control device of the embodiment of the present invention.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, with reference to the accompanying drawing to this hair
The realization of bright embodiment is described in detail, appended attached drawing purposes of discussion only for reference, is not used to limit the embodiment of the present invention.
Fig. 2 is the flow diagram of the Poewr control method of the embodiment of the present invention, as shown in Fig. 2, the power control side
Method includes the following steps：
Step 201：Determine across link interference power compensation subitem, across the link interference power compensation subitem is for adjusting
The uplink transmission power of UE.
The present invention determines across link interference power compensation subitem by following methods：
Mode one：Across the link interference power compensation subitem is equal to δCLI, wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE.
Mode two：Across the link interference power compensation subitem is equal to (- 1)m·δCLI, wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIUE is characterized caused by adjacent UE across link interference
When, m=1.
Mode three：Across the link interference power compensation subitem is equal to θ δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used to promote the UE's
While row power interferes to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, reducing the upper of the UE
Row power while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE.
Here, the θ is notified by least one of to the UE by base station or TRP：RRC signaling, MAC CE, DCI.
Mode four：Across the link interference power compensation subitem is equal to (- 1)m·θ·δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used to promote the UE's
While row power interferes to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, reducing the upper of the UE
Row power while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIUE is characterized caused by adjacent UE across link interference
When, m=1.
In above scheme, the δCLIOr δCLIAdjusted value notified by local area TRP to the UE.
In above scheme, the δCLIIt is determined by least one of following parameter：Across link interference level, RSRP, RSSI,
Path loss, link interference level value in the same direction.
In above scheme, adjacent UE, which can refer to, sends UE with the UE of cell with uplink, can also refer to the UE of its adjacent area.
Step 202：Based on across the link interference power compensation subitem, uplink power control algorithm is determined, wherein described
Across the link interference power compensation subitem is introduced in uplink power control algorithm.
In LTE, the calculation formula of the uplink transmission power of UE such as following formula (unit dBm)：
Wherein, PCMAXIt is the maximum transmission power of UE, such as 23dBm.M indicates scheduled RB number.POBy high level configuration
Two parameter PO_NOMINALAnd PUEThe sum of determine.PL be UE estimation serving cell to UE downlink path loss.α indicates Partial Power
(FPC, Fractional power control) path loss penalty coefficient is controlled, when α=1 indicates complete path loss compensation.α can be by
RRC configuration.ΔTFPresentation code modulation scheme (MCS, Modulation Coding Scheme) factor.The transmitting of f expression closed loop
Power control (TPC, Transmission Power Control) value.
Across link interference power compensation subitem N is introduced in above-mentioned formula (1)CLIAfterwards, following formula is obtained：
Step 203：Based on the uplink power control algorithm, the uplink power of UE is controlled.
Technical solution of the present invention is described in further detail below with reference to concrete application example.
In following embodiment of the present invention, network side is for transmitting and receiving point (TRP).It is applied in the embodiment of the present invention
The method of TRP can be applied equally to the nets such as base station (gNB), cell (cell), cell (small cell), access point (AP)
The deployment facility of network side, it is also possible to be suitable for the power control of wave beam specific (beam-specific) between TRP or UE.
In LTE, the calculating of the uplink transmission power (PUSCH, Physical Uplink Shared Channel) of UE
Formula such as following formula (unit dBm)：
Wherein, PCMAXIt is the maximum transmission power of UE, such as 23dBm.M indicates scheduled RB number.POBy high level configuration
Two parameter PO_NOMINALAnd PUEThe sum of determine.PL be UE estimation serving cell to UE downlink path loss.α indicates Partial Power
(FPC, Fractional power control) path loss penalty coefficient is controlled, when α=1 indicates complete path loss compensation.α can be by
RRC configuration.ΔTFPresentation code modulation scheme (MCS, Modulation Coding Scheme) factor.The transmitting of f expression closed loop
Power control (TPC, Transmission Power Control) value.For some special screnes, such as PUSCH and PUCCH
It sends simultaneously, above formula can be modified slightly.In fact, with the further evolution of future mobile communication system, such as new one
For in 5G NR system, above-mentioned uplink power control algorithm formula is likely occurred variation, for example, being based on the specific (beam of wave beam
Specific power control), but the basic thought of LTE power control can be inherited.Therefore, in above formula and other LTE
Existing UL power control algorithm can be used as the basis of NR uplink power control algorithm.
The power control algorithm (such as formula (1)) of LTE commonly assumes that the sending direction between adjacent area is alignment, therefore UL
Interfere the transmission mainly from other cells UL.It is adjacent but for systems such as such as dynamic TDD, flexible duplex or full duplexs
The sending direction of even local area may be inconsistent between area, such as the uplink transmission of some UE may be to adjacent UE in cell
Downlink reception interfere, adjacent UE can refer to the UE UE of uplink transmission process (specially execute) with cell here
UE can also refer to the UE of the adjacent area UE.Correspondingly, the uplink receiving of local area TRP also will receive local area TRP or adjacent area TRP downlink hair
The interference sent.In general, dynamic TDD or flexible duplex system are mainly between UE and adjacent UE or for local area TRP
Different sending directions is used between the TRP of adjacent area, thus in the presence of across link interference.Full duplex and flexible duplex based on FDM
System can for same cell UE between or the base station TRP/ of same cell between across link interference.For the sake of simplicity, this
Inventive embodiments are by taking across the link interference problem between different community as an example, to illustrate how to solve the problems, such as across link interference.But
Its solution can be equally used for solving the problems, such as between same cell across link interference.
Mechanism duplexing for flexible duplex etc., the interference between interference or UE and UE between TRP and TRP can all exist.
In general, in the macro area's scene of city Hong Qu and dense city, the interference between TRP and TRP is main across link interference.?
Indoor Thermal point scene, the interference between UE and UE is main across link interference.In design when row power control mechanism, need
Consider across link interference characteristic present in the mechanism such as flexible duplex.Uplink power control needs to solve again to be related to across link interference
Two main problems：
1, the UL SINR for guaranteeing UE can fight adjacent area TRP DL and send to the received interference of local area TRP UL, guarantee this
The performance of system UL.
2, the UL for reducing UE is sent on the adjacent received influence of UE DL.
Embodiment one
The specific method is as follows for uplink power control：
Across link interference power compensation subitem N is introduced in uplink power control algorithmCLI。NCLIUL for adjusting UE is sent out
Power is sent, to fight or reduce across link interference.
It fights the UL for being primarily referred to as adjustment UE across link interference and sends power, confrontation adjacent area TRP DL is sent to local area TRP
UL is received to guarantee the UL SINR of this UE across link interference, so that it is guaranteed that the performance of this system UL；Reduce across link interference master
Refer to that the UL of adjustment UE sends power, reduces received across link interference to adjacent UE DL.
For example, by taking LTE uplink power control algorithm formula (1) as an example, in uplink power control algorithm formula in addition
Across link interference power compensation subitem NCLI.Unit is dB.
1) further, across link interference power compensation subitem NCLIEqual to across link interference power compensation parameter δCLI.That is NCLI
=δCLI.Across link interference power compensation parameter δCLIFor adjusting the UL power of UE, to fight or reduce across link interference.This
In, the interference sent by adjacent area TRP DL, across link interference power compensation parameter δ are received if it is local area TRP ULCLIFor
Increase the UL power of UE, to fight caused by adjacent area across link interference.Adjacent UE DL is received on the contrary, being sent if it is UE UL
It interferes, across link interference power compensation parameter δCLIFor reducing the UL power of UE, to reduce caused by adjacent UE across chain
Road interference.At this time power compensation corresponds to power decline.Therefore δCLI0 can be greater than or equal to, might be less that 0.
For example, adding across link interference power compensation parameter still based on LTE uplink power control algorithm formula (1)
δCLINew uplink power control algorithm formula is afterwards：
Alternatively, NCLI=(- 1)m·δCLI.Here, δCLIMore than or equal to 0.Local area TRP is by δCLIIt notifies to UE, at this time m=
0.Work as δCLIWhen characterization UE is across link interference caused by adjacent UE, m=1.Formula (3) is changed to：
2) further, across link interference power compensation subitem NCLIAcross link interference power compensation is controlled equal to Partial Power
Coefficient θ is multiplied by across link interference power compensation parameter δCLI.I.e.：NCLI=θ δCLI。
Here, θ is different from the Partial Power control path loss penalty coefficient α in LTE uplink power control.
In LTE, eNodeB determines weight of the path loss in the uplink power control of UE by parameter alpha.Such as it is right
In the UE for being in cell edge, if its transmission power is excessively high, other cell UL can be interfered, to reduce whole system
Capacity.This can be controlled by α.
The effect of θ is：When the interference that TRP UL reception is sent by adjacent area TRP DL, it is confrontation across link interference, needs
Increase the UL power of UE, but after UE increase UL power, and the neighbouring UE DL of UE can be received and be caused across link interference.Alternatively,
When the UL of UE, which is sent, causes across link interference to the DL reception of neighbouring UE, need to reduce the UL power of UE, but UE reduces UL
After power, and the uplink receiving of itself can be impacted, performance decline.Therefore, the main function of θ, which can be attributed to, is being promoted
While interference of the UL power of UE to fight adjacent area TRP DL, the interference of UE adjacent to UE is controlled.Alternatively, in the UL for reducing UE
While power receives interference to adjacent UE DL to reduce, the influence to UE UL performance is controlled.By configuring θ, can balance
Across link interference person and by the performance across link interference person.
The value collection of θ is combined into the decimal (including 0 and/or 1) between 0 to 1.For example, θ value set 0,0.1,0.2,
0.3,0.4,0.5,0.6,0.7,0.8,0.9,1 }, alternatively, the priority of limitation and compensation in view of bit number, the value of θ
For one or more numerical value in above-mentioned set.Such as 3bit can indicate 8 numerical value, and 4bit can indicate 16 numerical value,
But expense is big and has waste, therefore the value set of θ may include 8 or 8 values below.The priority of compensation, which refers to, to be removed
(0 and 1 is removed) except compensation and uncompensation, preferentially selects big penalty coefficient value set.
When θ=1, indicates that across link interference power is fully compensated and (do not consider that across link interference power is fully compensated negative
Face factor).When θ=0, indicate not to across link interference carry out power compensation.
For control channel, if it is the TRP of UL is received by adjacent area TRP across link interference, then θ=1, namely carry out across
Link interference power is fully compensated.When there are such interference, it is lifted the UL power of UE, it is ensured that control channel receptivity.Such as
Fruit is to send the UE of DL to cause across link interference adjacent UE, then θ=0, namely is not mended to this across link interference power
It repays.When there are such interference, the UL power for reducing UE is not needed, it is ensured that the transmission performance of control channel.
θ can be used for the power compensation of reaction link priority.When the link priority height for carrying out power control, if
Adjacent area is faced across link interference, and θ can take a relatively large number between 0 to 1, or be configured to 1, carry out sufficient power compensation
(power compensation is to increase power, namely adequately or completely increase power here).If can be caused to adjacent area across link interference,
θ can take a relatively small number between 0 to 1, or be configured to 0, without or few power compensation (power compensation is to reduce here
Power, namely do not reduce power or reduce power less).θ can by high-level signaling RRC signaling, (such as system be believed by base station or TRP
Breath), MAC CE or DCI notify to UE.It is excellent in view of the configuration needs that the expense and θ value that signal are semi-static or static
RRC signaling (such as in system information) notice was gated to UE.
For example, addition Partial Power control is across link interference still based on LTE uplink power control algorithm formula (1)
Power compensation coefficient θ, across link interference power compensation parameter δCLINew uplink power control algorithm formula is afterwards：
Alternatively, NCLI=(- 1)m·θ·δCLI.Here, δCLIMore than or equal to 0.Local area TRP is by δCLIIt notifies to UE.At this time
M=0.Work as δCLIWhen characterization UE is across link interference caused by adjacent UE, m=1.Formula (3) is changed to：
3) further, across link interference power compensation parameter δCLIIt is determined by least one following parameter：Across link interference water
Flat, RSRP, RSSI, path loss, link interference level in the same direction.Further, δ is determinedCLIParameter include at least it is dry across link
Disturb level.
For between TRP and TRP across link interference：
Level across link interference of across the link interference level expression local area TRP by adjacent area TRP.It can be by local area TRP
It measures.Or adjacent area TRP is measured, and then gives local area TRP by space interface signaling or backhaul interaction.It is obtained by channel reciprocity
It arrives.
RSRP can be at least one following type：The first is across link RSRP.Across link RSRP is sent by a TRP
Measuring signal, another TRP receive measuring signal and measure and obtain.Across link RSRP can be the local area that local area TRP is measured
TRP receives the power level that adjacent area TRP sends signal.Alternatively, the power level that local area TRP sends signal is measured by adjacent area TRP,
Then local area TRP is given by space interface signaling or backhaul interaction.The power level can be the resource list of carrying measuring signal
The linear average of power on first (RE, Resource Element).Second is tradition RSRP, under being sent by TRP or base station
Row measuring signal, UE carry out RSRP measurement.Here RSRP is especially for the first across link RSRP.
RSSI can be at least one following type：The first for across link RSSI or with link RSSI, by local area TRP or
Adjacent area TRP is measured, and includes that local area and adjacent area co-channel across link or same link send signal power, monkey chatter etc..The
Two kinds are to be measured by local area TRP or adjacent area TRP without the overall RSSI of identification link direction, include on all link directions
The local area of co-channel and adjacent area send signal power, monkey chatter and thermal noise etc..
Path loss can be at least one following type：The first is across link path loss, is local area TRP and adjacent area
Path transmission loss between TRP.It can be measured by local area TRP.Or adjacent area TRP is measured, then by space interface signaling or
Local area TRP is given in backhaul interaction.It is obtained by channel reciprocity.For example, adjacent area TRP sends measuring signal, local area TRP measurement
Obtain received power value (such as obtaining RSRP, RSRP here is across link RSRP), further according to interaction (by backhaul or
Space interface signaling) obtained measuring signal sends power, received power value (such as RSRP) is subtracted to get to path loss.Second
Kind is traditional path loss, sends downlink measuring signal by TRP or base station, UE carries out RSRP measurement, further according to measuring signal
Transmission power, obtain downlink path-loss.Here especially for the first across link path loss.
Link interference level in the same direction is that local area TRP measures interference caused by adjacent UE UL transmission receives local area TRP UL.
This adjacent area (with local area link in the same direction) or the adjacent area (with local area reverse link) for sending DL can not be same or with some
Cell.It sends or, adjacent UE measures local area TRP DL to interference caused by adjacent UE DL reception.Here especially for former
The link interference level in the same direction measured.
Across link interference level is bigger or RSRP is bigger or across link RSSI is bigger or path loss is smaller or in the same direction
Link interference level is smaller, across link interference power compensation parameter δCLIIt is bigger.
Alternatively, the ratio across link interference level and link interference level in the same direction is bigger or across link interference level and total
The ratio of body RSSI is bigger or the ratio of RSRP and totality RSSI is bigger or the ratio of RSRP and link interference level in the same direction more
Greatly or the ratio of across link RSSI and totality RSSI is bigger or the ratio of across link RSSI and same link RSSI is bigger, across link
Jamming power compensating parameter δCLIIt is bigger.Here δCLIFor positive power compensation, namely it is more than or equal to 0.
For the interference between UE and UE：
Indicate this UE to the level across link interference of adjacent UE across link interference level.It can be measured by this UE.Into one
Step, can be reported to TRP.Alternatively, being measured by adjacent UE.Further, it is possible to be reported to its TRP, TRP by space interface signaling or
Local area TRP is given in backhaul interaction.It is obtained again by channel reciprocity.
RSRP can be at least one following type：The first is across link RSRP.Across link RSRP is sent by a UE
Measuring signal, another UE receive measuring signal and measure and obtain.Across link RSRP can receive for this UE that this UE is measured
Adjacent UE sends the power level of signal.Alternatively, measuring the power level that this UE sends signal by adjacent UE, it is then reported to it
Local area TRP is given by space interface signaling or backhaul interaction by its base station in base station.The power level can be carrying measuring signal
RE on power linear average.Second is tradition RSRP, sends downlink measuring signal by TRP or base station, UE is carried out
RSRP measurement.Here RSRP is especially for the first across link RSRP.
RSSI can be at least one following type：The first is for across link RSSI or with link RSSI, by this UE or neighbour
UE is measured, and includes that local area and adjacent area co-channel across link or same link send signal power, monkey chatter etc..It is for second
Traditional RSSI, is measured by UE, include on all link directions the local area of co-channel and adjacent area send signal power, monkey chatter,
And thermal noise etc..
Path transmission loss of the path loss between UE and adjacent UE or the path transmission damage between UE and adjacent area TRP
It loses or the path transmission between traditional UE and serving cell TRP loses.Here path loss especially for the first and/or
Second.
Link interference level in the same direction is that adjacent UE measures its adjacent area DL transmission to dry caused by the adjacent UE DL reception
It disturbs or local area TRP measures adjacent area UE UL and sends to interference caused by local area TRP UL reception.
Across link interference level is bigger or RSRP is bigger or across link RSSI is bigger or path loss is smaller or in the same direction
Link interference level is smaller, across link interference power compensation parameter δCLIAbsolute value is bigger.Alternatively, across link interference level (or
RSRP) bigger with the ratio of RSSI (or link interference level in the same direction), across link interference power compensation parameter δCLIAbsolute value is got over
Greatly.Here δCLIFor negative sense power compensation, δCLIAbsolute value is bigger, the UL power of this UE is lower.
4) further, base station is led to across link interference power compensation adjusted value υ by RRC signaling or MAC CE or DCI
Know to UE.υ can be notified independently.Or joint account is to POOpen loop α PL or closed loop TPC f in, no longer individually
Notify υ.
Across link interference power compensation adjusted value υ can be aggregate-value, such as in last time across link interference power compensation
On the basis of increase or decrease 1dB, υ is+1dB or -1dB；It is also possible to an absolute value, such as υ is+4dB or -4dB；Either
One value set, the element in the value set can be aggregate-value, be also possible to absolute value.
When υ is aggregate-value, δCLI(or NCLI) it is equal to the δ of last timeCLI(or NCLI) add υ.Last time can be last hour
δ in gap/time slot/sub-frame/frame or other times lengthCLIValue；When υ is aggregate-value, δCLI(or NCLI) it is equal to υ.
When across link interference power compensation adjusted value joint account to POOpen loop α PL or closed loop TPC f in.
υ can no longer be notified independently.Meanwhile also just there is no individually across link interference power compensation subitems in power control algorithm.
Across link interference power compensation is embodied in POOpen loop α PL or closed loop TPC f in.Across link interference power compensation
Item and POOpen loop α PL or closed loop TPC f joint account, obtain a new POOr the α PL or closed loop of open loop
TPC f.
Alternatively, δCLIOr NCLIBy UE according to measurement result or intercepted result, power adjustment is voluntarily carried out.Namely δCLIOr NCLI
Base station is not needed to notify.The path loss power compensation of similar open loop.
Embodiment two
If by interaction (such as passing through backhaul signaling or Over the air space interface signaling) or assisted between TRPs
Tune or other modes have determined the sending direction of plan or have been the priority directions sent.
For example, determining that certain moment UL is the sending direction of high priority sending direction or plan between TRPs.At this point, TRP1
It is UL between UE1, DL or is not sent between TRP2 and UE2.About UL power control, there are two types of methods：
Method one：Do not consider across the link interference UL power compensation between TRP and TRP, do not consider between UE and UE across
Link interference UL power compensation.The former is that the TRP of oneself is interfered by the TRP of adjacent area, the latter be UE to adjacent UE cause across
Link interference.
TRP1 configures θ=0, that is, ignores adjacent TRP and possible across link interference and ignore UE1 to adjacent UE to oneself
Possible interference.It is equivalent to without or does not calculate across link interference power compensation subitem.Namely the UL of UE1 sends power according to just
Often configuration, does not need and across link interference level binding.Wherein, adjacent TRP, that is, TRP2 is possible dry across link to oneself
It disturbs by TRP2 and adjusts its DL power.Ignore UE1 to the interference of adjacent UE because since the UE1 UL sent is high priority hair
Direction is sent, therefore does not need drop power.
Method two：Only consider TRP and TRP between across link interference UL power compensation, do not consider between UE and UE across
Link interference UL power compensation.Across link interference UL power compensation between TRP is calculated according to above method, that is, is calculated
NCLIOr δCLIOr θ δCLI.But for, across link interference, TRP1 configures θ=0, that is, ignores UE1 to phase between UE and UE
The adjacent possible interference of UE.Across the link interference power compensation subitem for being equivalent to without or not calculating UL UE to adjacent DL UE.?
That is the UL of UE1 sends power according to normal configuration, does not need and across link interference level binding.
Alternatively, between UE and UE across link interference, TRP1 configuration θ be between one 0 to 1 but be proximate to 0 one
A smaller value, for example, 0.1 or 0.2 etc..
Method three：Across link interference UL power compensation between TRP and TRP uses a biggish θ, θ 1 or 0 to 1
Between a relatively large decimal；Across link interference UL power compensation between UE and UE uses a lesser θ, θ 0 or 0
A relatively small decimal between to 1.
Embodiment three
There is different interference characteristics with link interference and across link interference.It is previous for dynamic TDD and similar system
The disturbed condition that the disturbed condition and the latter time slot/subframe that a time slot/subframe faces face may be entirely different.In order to solve
Power Control Problem under different links.
Base station configures two sets of parameter (POAnd/or α), POIncluding parameter PO_NOMINALAnd PUE：First set parameter set 1=
{PO_1, α1, second set of parameter set 2={ PO_2, α2}.First set parameter is used for nothing across link interference or does not consider dry across link
Situation is disturbed, second set of parameter is used to exist across link interference or needs to consider across link interference situation.Alternatively, first set parameter is used
In this cell by it is across link interference the case where, second set of parameter causes the feelings across link interference to adjacent cell for this cell
Condition.
Method one：Base station is configured with a set of in above-mentioned two sets of parameters or two sets, and is indicated to UE.UE is limited in default son
Corresponding set of parameter is used in frame/time slot/frame.For example, base station recognizes that adjacent base station sends DL in next time slot, this base station exists
Next time slot sends UL, and base station indicates that UE uses second set of parameter in next time slot.Default subframe can be the son of base station scheduling
Frame or the subframe of instruction.It can be indicated by RRC signaling, MAC CE or DCI signaling.
Method two：Base station is configured with above-mentioned two sets of parameters, and is indicated to UE.RRC signaling, MAC CE or DCI can be passed through
Signaling indicates.Any decided in its sole discretion using set of parameter by UE in subframe/time slot/frame.Such as UE according to it is listening to as a result, come
It judges whether there is across link interference, if needs are evaded, and determine therefrom which set of parameter used.
Method three：According to the priority (or sending direction of plan) of link direction come parameter selected to use, if hair
The direction for sending direction high with link direction priority is identical, then first set parameter is used, if sending direction and link direction are excellent
High contrary of first grade then uses second set of parameter.
Example IV
For different dual-mode or system, different interference problems can be faced, such as dynamic TDD, flexible couple
Work or full duplex can face dynamically or partly dynamically across link interference.For eIMTA system, can face semi-static across chain
Road interference.It is general only to face link interference in the same direction for traditional LTE system.Therefore, not all scene or system all need
Consider to carry out power control to across link interference problem.
In addition, being directed to high frequency or directional beam scene.Corresponding interfering beam centering is only appeared in across link interference
It needs to consider, not without the concern for across link interference problem in corresponding wave beam pair.Therefore, a configuration can be added to open
Close, for base station notice UE whether need to consider across link interference problem or whether using above-mentioned power control algorithm or
Stating link interference related power parameter includes NCLI、θ、δCLI, and/or whether two sets of configuration parameters in embodiment three come into force.Into
One step,
Method one：Semi-static across the link interference related power parameter configuration of triggering in base station.Such as it is notified by RRC signaling
UE.This is equivalent to base station and informs next UE needs to consider across link interference problem, and base station and UE need to be implemented corresponding power
Control algolithm, base station can send necessary power parameter to UE.
Method two：Across the link interference relevant parameter configuration of base station Dynamic trigger, such as UE is signaled by DCI.
Embodiment five
For being related to the downlink power control across link interference, take similar with the various embodiments described above uplink power control
Method.
Method one：If the downlink transmission of this TRP causes interference to the uplink receiving of adjacent TRP.The downlink of this TRP is sent out
Send power that can add across link interference power compensation subitem or across link interference power on the basis of original power settings
Compensating parameter δCLI.The subitem or δ at this timeCLIFor negative value or 0, indicate that this cell needs to reduce downlink transmission power, to reduce
To adjacent area across link interference.Across link interference power compensation subitem (or across link interference power compensation δCLI) define and act on
It is same as above.
Across the link interference specific value of power compensation subitem (or across link interference power compensation parameter δCLI) by as follows at least
One of parameter determine：Across link interference level, RSRP, RSSI, path loss, link interference level in the same direction.Further, it determines
δCLIParameter include at least across link interference level.Above-mentioned parameter value is similar with a kind of definition of embodiment, is a difference in that this reality
Applying this TRP in example is the TRP for sending DL, is the intruder across link interference, this TRP of embodiment one is the TRP for receiving UL, is
Disturbed person across link interference.
Above-mentioned parameter is measured by local area TRP, or is measured by adjacent area TRP/UE, and the backhaul or OTA that eats dishes without rice or wine then is passed through
Signaling issues local area TRP.
Method two：If the downlink reception of this UE causes interference by the uplink transmission of adjacent UE.The downlink of this TRP is sent
Power can be added on the basis of original power settings across link interference power compensation subitem (or across link interference power mend
Repay δCLI).At this time the subitem be positive value or 0, indicate that this cell needs to increase downlink transmission power, thus resist adjacent area across chain
Road interference.Across link interference power compensation subitem (or across link interference power compensation δCLI) define and act on same as above.
Across the link interference specific value of power compensation subitem (or across link interference power compensation parameter δCLI) by as follows at least
One of parameter determine：Across link interference level, RSRP, RSSI, path loss, link interference level in the same direction.Further, it determines
δCLIParameter include at least across link interference level.Above-mentioned parameter value is similar with a kind of definition of embodiment, is a difference in that this reality
Apply this UE in example be receive DL UE, be the disturbed person across link interference, this UE of embodiment one be send UL UE, be across
The intruder of link interference.
Above-mentioned parameter is measured by this UE, is reported to local area TRP.Or measured by adjacent area TRP/UE, then pass through backhaul
Or OTA signaling of eating dishes without rice or wine issues local area TRP.
Embodiment six
Across link interference power compensation is excessive or the too small performance to local area or adjacent area will cause negative effect.For example, this
UE interferes adjacent UE, this UE needs to reduce power.It, will to the ascending performance of itself but if reduction power is too many
It impacts.
One lowest power value Pmin is set, is indicated on each RB or in each frequency domain unit, the minimum of uplink power.
Therefore, Pmin is it can be appreciated that minimum power spectral density.Uplink power is after across link interference power compensation or undergoes
After crossing other open loops or closed power adjustment, power must not be lower than Pmin.
Fig. 3 is the structure composition schematic diagram of the power control device of the embodiment of the present invention, as shown in figure 3, described device packet
It includes：
First determination unit 31, for determining across link interference power compensation subitem, across the link interference power compensation
Subitem is used to adjust the uplink transmission power of UE；
Second determination unit 32, for determining that uplink power control is calculated based on across the link interference power compensation subitem
Method, wherein across the link interference power compensation subitem is introduced in the uplink power control algorithm；
Control unit 33 controls the uplink power of UE for being based on the uplink power control algorithm.
In one embodiment, across the link interference power compensation subitem is equal to δCLI, wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE.
In one embodiment, across the link interference power compensation subitem is equal to (- 1)m·δCLI, wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIUE is characterized caused by adjacent UE across link interference
When, m=1.
In one embodiment, across the link interference power compensation subitem is equal to θ δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used to promote the UE's
While row power interferes to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, reducing the upper of the UE
Row power while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE.
Here, the θ is notified by least one of to the UE by base station or TRP：RRC signaling, MAC CE, DCI.
In one embodiment, across the link interference power compensation subitem is equal to (- 1)m·θ·δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used to promote the UE's
While row power interferes to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, reducing the upper of the UE
Row power while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIUE is characterized caused by adjacent UE across link interference
When, m=1.
In above scheme, the δCLIOr δCLIAdjusted value notified by local area TRP to the UE.
In one embodiment, the δCLIIt is determined by least one of following parameter：Across link interference level, RSRP,
RSSI, path loss, link interference level value in the same direction.
It will be appreciated by those skilled in the art that the method that the above-mentioned apparatus of the embodiment of the present invention can refer to the embodiment of the present invention
The description of embodiment is understood.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention
Formula.Moreover, the present invention, which can be used, can use storage in the computer that one or more wherein includes computer usable program code
The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Correspondingly, the embodiment of the present invention also provides a kind of computer storage medium, stores in the computer storage medium
There are computer executable instructions, when the computer executable instructions are performed, can be realized the function in the embodiment of the present invention
Arbitrary steps in rate control method.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (16)
1. a kind of Poewr control method, which is characterized in that the method includes：
Determine across link interference power compensation subitem, the uplink that across the link interference power compensation subitem is used to adjust UE is sent
Power；
Based on across the link interference power compensation subitem, uplink power control algorithm is determined, wherein the uplink power control
Across the link interference power compensation subitem is introduced in algorithm；
Based on the uplink power control algorithm, the uplink power of user equipment (UE) is controlled.
2. the method according to claim 1, wherein across the link interference power compensation subitem is equal to δCLI,
In：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE.
3. the method according to claim 1, wherein across the link interference power compensation subitem is equal to (- 1)m·
δCLI, wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE；
When local area, which transmits and receives node TRP, to be interfered by adjacent area TRP, m=0；Work as δCLIUE is characterized caused by adjacent UE across chain
When road is interfered, m=1.
4. the method according to claim 1, wherein across the link interference power compensation subitem is equal to θ
δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used in the uplink function for promoting the UE
While rate is interfered to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, in the uplink function for reducing the UE
Rate while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE.
5. according to the method described in claim 4, it is characterized in that, the θ is notified by base station or TRP by least one of
To the UE：Radio resource control RRC signaling, media access control control unit MAC CE, Downlink Control Information DCI.
6. the method according to claim 1, wherein across the link interference power compensation subitem is equal to (- 1)m·
θ·δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used in the uplink function for promoting the UE
While rate is interfered to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, in the uplink function for reducing the UE
Rate while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIWhen characterization UE is across link interference caused by adjacent UE, m=
1。
7. according to the described in any item methods of claim 2 to 6, which is characterized in that the δCLIOr δCLIAdjusted value by local area
TRP is notified to the UE.
8. according to the described in any item methods of claim 2 to 6, which is characterized in that the δCLIBy at least one of following parameter
It determines：Across link interference level, Reference Signal Received Power RSRP, received signal strength indicator RSSI, path loss, chain in the same direction
Road interference level value.
9. a kind of power control device, which is characterized in that described device includes：
First determination unit, for determining that across link interference power compensation subitem, across the link interference power compensation subitem are used
In the uplink transmission power of adjustment UE；
Second determination unit, for determining uplink power control algorithm based on across the link interference power compensation subitem,
In, across the link interference power compensation subitem is introduced in the uplink power control algorithm；
Control unit controls the uplink power of UE for being based on the uplink power control algorithm.
10. device according to claim 9, which is characterized in that across the link interference power compensation subitem is equal to δCLI,
Wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE.
11. device according to claim 9, which is characterized in that across the link interference power compensation subitem is equal to (- 1
)m·δCLI, wherein：
The δCLIRepresent across link interference power compensation parameter, wherein the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIWhen characterization UE is across link interference caused by adjacent UE, m=
1。
12. device according to claim 9, which is characterized in that across the link interference power compensation subitem is equal to θ
δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used in the uplink function for promoting the UE
While rate is interfered to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, in the uplink function for reducing the UE
Rate while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE.
13. device according to claim 12, which is characterized in that the θ is led to by base station or TRP by least one of
Know to the UE：RRC signaling, MAC CE, DCI.
14. device according to claim 9, which is characterized in that across the link interference power compensation subitem is equal to (- 1
)m·θ·δCLI, wherein：
The θ represents Partial Power and controls across link interference power compensation coefficient, and the θ is used in the uplink function for promoting the UE
While rate is interfered to fight the downlink of adjacent area TRP, the interference to adjacent UE is controlled；Alternatively, in the uplink function for reducing the UE
Rate while reduction to the interference of the downlink reception of adjacent UE, controls the influence to the UE ascending performance；
The δCLIRepresent across link interference power compensation parameter, the δCLIFor adjusting the uplink power of UE；
When local area TRP is interfered by adjacent area TRP, m=0；Work as δCLIWhen characterization UE is across link interference caused by adjacent UE, m=
1。
15. device according to any one of claims 10 to 14, which is characterized in that the δCLIOr δCLIAdjusted value by this
Area TRP is notified to the UE.
16. device according to any one of claims 10 to 14, which is characterized in that the δCLIAt least by following parameter
One of determine：Across link interference level, RSRP, RSSI, path loss, link interference level value in the same direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710327079.2A CN108882350B (en) | 2017-05-10 | 2017-05-10 | Power control method and device |
| PCT/CN2018/085372 WO2018205873A1 (en) | 2017-05-10 | 2018-05-02 | Power control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710327079.2A CN108882350B (en) | 2017-05-10 | 2017-05-10 | Power control method and device |
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| CN114145051A (en) * | 2019-07-29 | 2022-03-04 | 高通股份有限公司 | Priority based transmit power control |
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| Publication number | Publication date |
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| CN108882350B (en) | 2024-04-16 |
| WO2018205873A1 (en) | 2018-11-15 |
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