CN106162851B - A kind of communication means and device of multi-user's superposition - Google Patents
A kind of communication means and device of multi-user's superposition Download PDFInfo
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- CN106162851B CN106162851B CN201510141963.8A CN201510141963A CN106162851B CN 106162851 B CN106162851 B CN 106162851B CN 201510141963 A CN201510141963 A CN 201510141963A CN 106162851 B CN106162851 B CN 106162851B
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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
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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
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Abstract
The invention discloses the communication means and device of a kind of multi-user superposition.UE receives the first signaling in step 1, and the first signaling indicates K1 candidate power value；The second signaling is received in step 2, the second signaling indicates the first performance number；The first wireless signal is received in step 3.Wherein, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, and the first performance number is transmission power of first wireless signal on given running time-frequency resource, and the first performance number is one in the K1 candidate power value.The present invention supports multi-user's superposition based on CRS, supports the UE switching at runtime of multi-user's superposition to non-multi-user's overlaying state, and dynamic adjusts downlink transmission power to obtain higher efficiency of transmission.In addition, present invention saves DCI expenses.
Description
Technical field
The present invention relates to the schemes that descending power in wireless communication system adjusts, more particularly to based on long term evolution
The method and dress of the power adjustment that (Superposition) is superimposed for multi-user of (LTE-Long Term Evolution)
It sets.
Background technique
Traditional 3GPP (3rd Generation Partner Project, third generation cooperative partner program) cellular system
In, the downstream wireless signals of multi-user are by { TDM (Time Division Multiplexing, time division multiplexing), FDM
(Frequency Division Multiplexing, frequency division multiplexing), CDM (Code Division Multiplexing, code
Point multiplexing) } one or more of mode realize.A new research is introduced in 3GPP R (Release, version) 13
The superposition of project (RP-150496), i.e. descending multi-user, essence are to utilize the two UE (User of different instructions for sending power
Equipment, user equipment) downstream wireless signals.Described two UE generally include a nearly UE (i.e. close apart from base station) and
One remote UE (i.e. remote apart from base station), base station are the lower transmission power of the first signal distribution that target receiver is nearly UE, together
When for the second signal that target receiver is remote UE distribute higher transmission power.Remote UE directly demodulates second signal (i.e. by the
One signal works as noise processed), and nearly UE demodulate first second signal (in view of UE has lower path loss to nearly UE farther out,
A possibility that successfully decoded, is very high), residual signal then is obtained from the influence for receiving removal second signal in signal, residue is believed
Number decoding obtain the first signal, here it is SIC, (Successive Interference Cancellation, stepwise derivation disappear
Except) algorithm.
In existing LTE system, in PDSCH, (Physical Downlink Shared Channel, physical down are shared
Channel) on the demodulation RS (Reference Signal, reference signal) of physical layer data that transmits be based on CRS (Cell
Reference Signal, cell reference signals) or URS (UE-specific Reference Signal, UE specifically join
Examine signal).For the PDSCH based on CRS, base station is configured by high-level signaling sends power, and for the PDSCH based on URS,
Base station can dynamically be controlled using URS and send power.In above-mentioned descending multi-user superposition scene, the first signal and the second letter
It number is based on CRS either URS respectively, i.e. the demodulation RS of { the first signal, second signal } is likely to occur four kinds of combinations:
Group unification { CRS, CRS }
It combines two, { URS, URS }
It combines three, { CRS, URS }
It combines four, { URS, CRS }
Disclosed in the NTTDocomo in paper, the MIMO (Multi of multi-user's superposition is proposed for said combination two
Input Multi Output, multiple-input and multiple-output) scheme, i.e. multi-user's superposition can only be real in the same wave beam (Beam)
It is existing, traditional space division multiplexing is still used between wave beam, two users of superposition can share identical URS and eat dishes without rice or wine out to save
Pin.
Inventors discovered through research that the scheme of above-mentioned NTTDocomo may face following problem:
- is the wireless signal of remote UE when the interference between wave beam is more serious, for target receiver, and nearly UE can be just
The success rate really decoded may be similar with remote UE (or slightly higher).And if nearly UE can not correct decoding, cannot execute subsequent
SIC operation, greatly reduces the system gain of multi-user's superposition
- multi-user superposition can not be applied to traditional user's (i.e. group unification, three, four) based on CRS.Based under CRS
Row transmission plays key player in LTE, particularly with remote UE or CSI (Channel Status Information, letter
Channel state information) poor reliability scene, therefore, multi-user superposition should support the downlink transfer based on CRS.
Summary of the invention
Inventors discovered through research that (at least) nearly UE in multi-user's superposition should can switching at runtime to non-multi-user
The efficiency of transmission of the overlaying state-otherwise nearly UE may degradation (be limited to send power).Further, multi-antenna transmitting
Interference between defeated middle wave beam may be than more serious, and the downlink transfer based on CRS should also be as becoming a kind of multi-user's stacked system.
And in LTE, the transmission power of the PDSCH based on CRS is usually to be configured by high-level signaling, it is difficult to meet multi-user and be superimposed UE
Power adjustment demand.And traditional Dynamic Closed Loop Poewr control method is according to step-length (Stepsize) dynamic adjustment power
(i.e. each dynamic signaling can send one power step size of power adjustment compared to last), is also unable to satisfy multi-user and is superimposed UE's
Power adjustment demand.
In view of the above-mentioned problems, the present invention provides solutions.It should be noted that in the absence of conflict, this Shen
The feature in the embodiment and embodiment in UE please can be applied in base station, and vice versa.Further, do not conflicting
In the case of, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
The invention discloses a kind of methods in UE for supporting multi-user to be superimposed, wherein includes the following steps:
Step A. receives the first signaling, and the first signaling indicates K1 candidate power value
Step B. receives the second signaling, and the second signaling indicates the first performance number
Step C. receives the first wireless signal.
Wherein, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, and the first performance number is
Transmission power of first wireless signal on given running time-frequency resource, the first performance number is one in the K1 candidate power value
It is a.
It is compared with traditional dynamic power control, the characteristics of above method is that base station can be dynamically by downlink transmission power
One successive step is in place.In existing cellular communication, the excessive AGC (Auto that may result in UE of one successive step of downlink transmission power
Gain Control, automatic growth control) it can not work normally (i.e. the above method violates common knowledge).And inventor is by grinding
Study carefully discovery, the above method is reasonable in multi-user's superposed transmission, because AGC is (or even more for two according to superposition
It is a) general powers of the downstream wireless signals of UE and be arranged.
As one embodiment, the K1 is 2.As one embodiment, the UE is nearly UE.As one embodiment,
The K1 is 3, and the UE is the nearly UE or remote UE in multi-user's superposition.As one embodiment, the unit of the performance number
It is dBm (milli decibel).As one embodiment, the unit of the performance number is mW (milliwatt).
As one embodiment, the given running time-frequency resource is a subcarrier in a wideband symbol, the broadband
Symbol is { OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing) symbol, SC-
FDMA (Single Carrier Frequency Division Multiple Access, single-carrier frequency division multiple access) symbol,
MC-CDMA (Multi Carrier Code Division Multiple Access, multi-carrier code division multiple access) symbol, SCMA
(Sparse Code Multiple Access, Sparse Code multiple access) symbol } in one.
As one embodiment, the given running time-frequency resource refers to the RE (Resource in the OFDM symbol not comprising CRS
Element, resource particle), the first performance number is EPRE of first wireless signal in the OFDM symbol not comprising CRS.
As one embodiment, the first wireless signal is sent by CRS antenna port.A son as the embodiment is implemented
Example, the first signaling indicate that the K1 candidate power value compares the power difference of CRS EPRE.
As one embodiment, (UE specific Reference Signal, UE is specific by URS for the first wireless signal
Reference signal) antenna port except antenna port sends.
Specifically, according to an aspect of the present invention, which is characterized in that the UE determines the first power according to following one
Value
Select the signaling format of second signaling of
Select K2 information bit in two the second signalings of
Wherein, the K2 is positive integer.
The selection one and the selection are second is that self-existent, each other without coupling.It is described selection one essence be
Implicit the first performance number of instruction of second signaling, reduces the payload size of the second signaling.The essence of the selection two is second
Explicit the first performance number of instruction of signaling provides higher flexibility, the selection two and LTE DCI (Downlink
Control Information, Downlink Control Information) difference of format 1D is: the latter is currently transmitted by 1 bit indication
Power is that (high-level signaling configuration) configuration sends power or configuration transmission power subtracts 3dB, i.e. substantially base station
A transmission power can be configured, and the K1 candidate power value in the selection two is fully configurable.
As one embodiment, the K2 is 1.As one embodiment, the K2 information bit indicates the first power
It is worth the index in the K1 candidate power value.
Specifically, according to an aspect of the present invention, which is characterized in that the UE determines the first function according to the selection one
Rate value, the second signaling are the dispatch of the first wireless signal.If it is folded to contain multi-user in the signaling format of the second signaling
Add relevant information bit, the first performance number is the first candidate power value, and otherwise the first performance number is the second candidate power value.
As one embodiment, it includes { the association of Target Wireless signal that the multi-user, which is superimposed relevant information bit,
RNTI (Radio Network Temporary Identity, the tentative mark of wireless network), Target Wireless signal matches confidence
It ceases (information such as resource allocation), the statistical information (sending the information such as power) of Target Wireless signal, the scheduling of Target Wireless signal
At least one of the information of signaling }, the Target Wireless signal is the wireless signal with the superposition of the first wireless signal.As one
A embodiment, the second candidate power value are not more than the first candidate power value.
As one embodiment, difference of the second candidate power value compared to CRS EPRE is by RRC (Radio Resource
Control, wireless heterogeneous networks) indicated by signaling p-a.
As one embodiment, if not including multi-user in the signaling format of the second signaling is superimposed relevant information ratio
Spy, the signaling format of the second signaling are one of DCI formats { 1,1A, 1B, 1C, 1D, 2,2A }.
Specifically, according to an aspect of the present invention, which is characterized in that the step C further includes following steps:
Step C0. receives second wireless singal, from receive second wireless singal is removed in signal component after receive the again
One wireless signal.
Wherein, the occupied running time-frequency resource of the first wireless signal and the occupied running time-frequency resource of second wireless singal all or
Person partially overlaps.
In above-mentioned aspect, the UE is nearly UE.
Specifically, according to an aspect of the present invention, which is characterized in that the second signaling indicates the second performance number.Wherein,
Two performance numbers are transmission power of the second wireless singal on the given running time-frequency resource.
As one embodiment, second wireless singal is sent by CRS antenna port.As one embodiment, the second power
Value is as indicated by 3 information bits in the second signaling, the difference of the instruction of 3 information bits second performance number and CRS EPRE
Value.
As one embodiment, the second signaling directly indicates the second performance number.
The invention discloses a kind of methods in base station for supporting multi-user to be superimposed, wherein includes the following steps:
Step A. sends the first signaling, and the first signaling indicates K1 candidate power value
Step B. sends the second signaling, and the second signaling indicates the first performance number
Step C. sends the first wireless signal.
Wherein, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, and the first performance number is
Transmission power of first wireless signal on given running time-frequency resource, the first performance number is one in the K1 candidate power value
It is a.
Specifically, according to an aspect of the present invention, which is characterized in that the base station indicates the first function by following one
Rate value:
Select the signaling format of second signaling of
Select K2 information bit in two the second signalings of
Wherein, the K2 is positive integer.
Specifically, according to an aspect of the present invention, which is characterized in that the base station passes through one instruction first of selection
Performance number, the second signaling are the dispatch of the first wireless signal.If containing multi-user in the signaling format of the second signaling
It is superimposed relevant information bit, the first performance number is the first candidate power value, and otherwise the first performance number is the second candidate power value.
Specifically, according to an aspect of the present invention, which is characterized in that the step C further includes following steps:
Step C0. sends second wireless singal.
Wherein, the occupied running time-frequency resource of the first wireless signal and the occupied running time-frequency resource of second wireless singal all or
Person partially overlaps.
Specifically, according to an aspect of the present invention, which is characterized in that the second signaling indicates the second performance number.Wherein,
Two performance numbers are transmission power of the second wireless singal on the given running time-frequency resource.
The invention discloses a kind of user equipmenies for supporting multi-user to be superimposed, wherein including following module:
First module: for receiving the first signaling, the first signaling indicates K1 candidate power value
Second module: for receiving the second signaling, the second signaling indicates the first performance number
Third module: for receiving the first wireless signal.
Wherein, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, and the first performance number is
Transmission power of first wireless signal on given running time-frequency resource, the first performance number is one in the K1 candidate power value
It is a.
As one embodiment, the user equipment determines the first performance number according to the signaling format of the second signaling.
As one embodiment, the user equipment determines the first power according to K2 information bit in the second signaling
Value.Wherein, the K2 is positive integer.
The invention discloses a kind of base station equipments for supporting multi-user to be superimposed, wherein including following module:
First module: for sending the first signaling, the first signaling indicates K1 candidate power value
Second module: for sending the second signaling, the second signaling indicates the first performance number
Third module: for sending the first wireless signal.
Wherein, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, and the first performance number is
Transmission power of first wireless signal on given running time-frequency resource, the first performance number is one in the K1 candidate power value
It is a.
As one embodiment, the base station equipment indicates the first performance number by the signaling format of the second signaling.
As one embodiment, the base station equipment indicates the first power by K2 information bit in the second signaling
Value.Wherein, the K2 is positive integer.
Compared to existing public technology, the present invention has following technical advantage:
- supports multi-user's superposition based on CRS
- supports the UE switching at runtime of multi-user's superposition to non-multi-user's overlaying state, and dynamic adjusts downlink transmission power
To obtain higher efficiency of transmission
- is determined according to signaling format sends power, saves DCI expense.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the transmission flow figure of descending multi-user superposition according to an embodiment of the invention；
Fig. 2 shows the resource allocations of the first wireless signal and second wireless singal according to an embodiment of the invention
Schematic diagram；
Fig. 3 shows remote UE according to an embodiment of the invention, and using transmission diversity, nearly user is used closed loop more days
The schematic diagram that line is sent；
Fig. 4 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
Fig. 5 shows the structural block diagram of the processing unit in base station according to an embodiment of the invention；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the transmission flow figure of descending multi-user superposition, as shown in Fig. 1.In attached drawing 1, base station N1 is
The maintenance base station of the serving cell of the serving cell and UE U3 of UE U2.
ForUE U2, the first signaling is received in the step s 21, and the first signaling indicates K1 candidate power value；In step
The second signaling is received in S22, the second signaling indicates the first performance number；Second wireless singal is received in step S23, is believed from receiving
The first wireless signal is received again after removing the component of second wireless singal in number.
ForBase station N1, the first signaling is sent in step s 11；The second signaling is sent in step s 12；In step S13
The first wireless signal of middle transmission and second wireless singal.
ForUE U3, in step S31, receive second wireless singal.
In embodiment 1, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, the first function
Rate value is transmission power of first wireless signal on given running time-frequency resource, and the first performance number is in the K1 candidate power value
One.The occupied running time-frequency resource of first wireless signal and the occupied running time-frequency resource of second wireless singal are all or part of
It is overlapped.
As the sub- embodiment 1 of embodiment 1, the K1 is 2, and the K1 candidate power value includes { the first candidate power
Value, the second candidate power value }, UE U2 determines the first performance number according to the DCI format of the second signaling in step S22, if the
Multi-user is contained in the signaling format of two signalings is superimposed relevant information bit, the first performance number is the first candidate power value,
Otherwise the first performance number is the second candidate power value.
As the sub- embodiment 2 of embodiment 1, the second signaling is the dispatch of the first wireless signal, second wireless singal
It is sent by CRS antenna port, the second signaling indicates the second performance number.Wherein, the second performance number is second wireless singal described
Transmission power on given running time-frequency resource.
As the sub- embodiment 3 of embodiment 1, the second signaling indicates the second performance number.Wherein, the second performance number is the second nothing
Transmission power of the line signal on the given running time-frequency resource.
As the sub- embodiment 4 of embodiment 1, the first wireless signal and the occupied time resource of the first wireless signal are complete
It is overlapped, the first wireless signal and the occupied frequency resource of the first wireless signal partially overlap.
Embodiment 2
Embodiment 2 illustrates a PRB (Physical Resource Block, Physical Resource Block) centering in overlapping
The first wireless signal and second wireless singal resource allocation schematic diagram, as shown in Fig. 2.In attached drawing 2, bold box mark
Grid is CRS RE, and the grid of cross spider filling is DMRS (Demodulation Reference Signal, demodulation reference letter
Number) RE, the blank boxes of filament mark are by the first wireless signal and second wireless singal occupancy.
In embodiment 2, having one in { the first wireless signal, second wireless singal } of the present invention is by CRS antenna
Port is sent, another is sent by DMRS antenna port.
As the sub- embodiment 1 of embodiment 2, the first wireless signal is sent by CRS antenna port, and the first wireless signal exists
The position of DMRS RE is perforated or rate-matched.
As the sub- embodiment 2 of embodiment 2, the first wireless signal is sent by DMRS antenna port, and second wireless singal is also
Occupy DMRS RE (i.e. the grid of cross spider mark).The advantages of sub- embodiment 2 is: traditional UE (is unaware that nearly UE is deposited
) can be as the remote UE of multi-user's superposition.In view of the target UE (i.e. close UE) of the first wireless signal is first carried out SIC, second
Wireless signal will not interfere the DMRS of the first wireless signal.
As the sub- embodiment 3 of embodiment 2, heretofore described first performance number is that the first wireless signal is not including
EPRE in the OFDM symbol of CRS, EPRE of first wireless signal in the OFDM symbol comprising CRS are compared to the first performance number
Ratio is configured by high-level signaling (p-b).
Embodiment 3
Embodiment 3 illustrates the remote UE schematic diagram that nearly user uses closed-loop multiple antenna to send using transmission diversity, such as attached
Shown in Fig. 3.In attached drawing 3, base station N2 is the maintenance base station of the serving cell of UE { U4, U5, U6 }, and UE { U4, U5 } is nearly UE, UE
U6 is remote UE., as shown in Fig. 3.The closed-loop multiple antenna sends the CSI (Channel for referring to that base station relies on UE feedback
Status Information, channel state information) or SRS (Sounding Reference Signal, listen to reference to letter
Number) performed by multiple antennas send-include but not limited to wave beam forming, the modes such as space division multiplexing.The transmission diversity refers to base
The CSI or SRS- that station does not depend on UE feedback include but not limited to CDD (Cyclic Delay Diversity, circulation delay point
Collection), STBC (Space-Time Block Coding, Space-Time Block Coding), SFBC (Space-Frequency Coding, null tone
Block code) etc. modes.
In embodiment 3, base station N2 scheduled UE U4, U5 and U6 on the same running time-frequency resource.Wherein, UE { U4, U5 }
Using closed-loop multiple antenna sending method (respectively as thick line ellipse and filament ellipse indicate), UE U6 uses more days of transmission diversity
Line sending method (shown in dotted line).UE { U4, U5 } is transmitted by the way of space division multiplexing, and UE { U4, U6 } and { U5, U6 }
The mode that multi-user's superposition is respectively adopted is transmitted.
As the sub- embodiment 1 of embodiment 3, the target UE of the first wireless signal in the present invention is UE U6 (i.e. the first nothing
The association RNTI of line signal is the RNTI of UE U6), the target UE of second wireless singal in the present invention is UE U4 or UE
U5.First wireless signal is sent by CRS antenna port.The advantages of sub- embodiment 1 is: base station N2 can be according to UE U6
Whether being in multi-user's overlaying state dynamically determines whether the transmission power for increasing the first wireless signal (to ensure that there are the second nothings
Under conditions of line signal interference, UE U6 can be properly received the first wireless signal).
As the sub- embodiment 2 of embodiment 3, the target UE of the first wireless signal in the present invention is UE U4 or UE
U5, the target UE of second wireless singal in the present invention is UE U6.First wireless signal and second wireless singal were by CRS days
Line end mouth is sent.The advantages of sub- embodiment 1 is: whether base station N2 can be in multi-user according to UE U4 or UE U5
Overlaying state dynamically determines whether that the transmission power for reducing the first wireless signal is (strongly dry to avoid causing to second wireless singal
It disturbs).
Embodiment 4
Embodiment 4 illustrates the structural block diagram of the processing unit in a UE, as shown in Fig. 4.In attached drawing 4, UE processing
Device 200 is mainly made of receiving module 201, receiving module 202 and receiving module 203.
Receiving module 201 indicates K1 candidate power value for receiving the first signaling, the first signaling.Receiving module 202 is used
In receiving the second signaling, the second signaling indicates the first performance number.Receiving module 203 is for receiving the first wireless signal.
In embodiment 4, the K1 is greater than 1, and the first signaling is RRC signaling, and the second signaling is physical layer signaling, the first power
Value is transmission power of first wireless signal on given running time-frequency resource, and the first performance number is in the K1 candidate power value
One.The K1 candidate power value is independent of each other
As the sub- embodiment 1 of embodiment 4, receiving module 202 determines the first power according to the signaling format of the second signaling
Value, the second signaling is the dispatch of the first wireless signal.If containing multi-user's superposition in the signaling format of the second signaling
Relevant information bit, the first performance number are the first candidate power values, and otherwise the first performance number is the second candidate power value.
Embodiment 5
Embodiment 5 illustrates the structural block diagram of the processing unit in a base station, as shown in Fig. 5.In attached drawing 5, base station
Processing unit 300 is mainly made of sending module 301, sending module 302 and sending module 303.
Sending module 301 indicates K1 candidate power value for sending the first signaling, the first signaling.Sending module 302 is used
In sending the second signaling, the second signaling indicates the first performance number.Sending module 302 is for sending the first wireless signal.
In embodiment 5, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, the first function
Rate value is transmission power of first wireless signal on given running time-frequency resource, and the first performance number is in the K1 candidate power value
One.
As the sub- embodiment 1 of embodiment 5, the second signaling is the scheduling DCI of the first wireless signal.
It include 1 information bit in the second signaling, 1 information bit is used for as the sub- embodiment 2 of embodiment 5
Indicate that the first performance number is 1 in the K1 candidate power value, the K1 is 2.
As the sub- embodiment 3 of embodiment 5, the first signaling directly indicates the K1 candidate power value.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware is enabled to complete, described program can store in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, one or more integrated circuit can be used also to realize in all or part of the steps of above-described embodiment.Phase
It answers, each modular unit in above-described embodiment, can be realized using example, in hardware, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.UE in the present invention includes but is not limited to mobile phone,
Tablet computer, notebook, the wireless telecom equipments such as card of surfing Internet.Base station in the present invention includes but is not limited to macrocell base stations, micro-
Cellular base station, Home eNodeB, the wireless telecom equipments such as relay base station.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (10)
1. a kind of method in UE for supporting multi-user to be superimposed, wherein include the following steps:
Step A. receives the first signaling, and the first signaling indicates K1 candidate power value；
Step B. receives the second signaling, and the second signaling indicates the first performance number；
Step C. receives the first wireless signal；
Wherein, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, and the first performance number is first
Transmission power of the wireless signal on given running time-frequency resource, the first performance number is one in the K1 candidate power value；
The UE determines the first performance number according to following one:
Select the signaling format of second signaling of；
Select K2 information bit in two the second signalings of；
Wherein, the K2 is positive integer.
2. the method according to claim 1, wherein the UE according to it is described selection one determine the first performance number,
Second signaling is the dispatch of the first wireless signal；If containing multi-user in the signaling format of the second signaling is superimposed correlation
Information bit, the first performance number is the first candidate power value, and otherwise the first performance number is the second candidate power value；
It includes that { association of Target Wireless signal, Target Wireless signal match confidence that the multi-user, which is superimposed relevant information bit,
At least one of breath, the statistical information of Target Wireless signal, the information of the dispatch of Target Wireless signal }, the target
Wireless signal is the wireless signal with the superposition of the first wireless signal.
3. method according to claim 1 or 2, which is characterized in that the step C further includes following steps:
Step C0. receives second wireless singal, nearly UE from receive second wireless singal is removed in signal component after receive the again
One wireless signal；
Wherein, the occupied running time-frequency resource of the first wireless signal and the occupied running time-frequency resource whole of second wireless singal or portion
Divide and be overlapped, the transmission power of the transmission power ratio second wireless singal of the first wireless signal is low.
4. according to the method described in claim 3, it is characterized in that, the second signaling indicates the second performance number, wherein the second power
Value is transmission power of the second wireless singal on the given running time-frequency resource.
5. a kind of method in base station for supporting multi-user to be superimposed, wherein include the following steps:
Step A. sends the first signaling, and the first signaling indicates K1 candidate power value；
Step B. sends the second signaling, and the second signaling indicates the first performance number；
Step C. sends the first wireless signal；
Wherein, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, and the first performance number is first
Transmission power of the wireless signal on given running time-frequency resource, the first performance number is one in the K1 candidate power value；
The base station indicates the first performance number by following one:
Select the signaling format of second signaling of；
Select K2 information bit in two the second signalings of；
Wherein, the K2 is positive integer.
6. according to the method described in claim 5, it is characterized in that, the base station passes through one first power of instruction of selection
Value, the second signaling is the dispatch of the first wireless signal；If containing multi-user's superposition in the signaling format of the second signaling
Relevant information bit, the first performance number are the first candidate power values, and otherwise the first performance number is the second candidate power value；
It includes that { association of Target Wireless signal, Target Wireless signal match confidence that the multi-user, which is superimposed relevant information bit,
At least one of breath, the statistical information of Target Wireless signal, the information of the dispatch of Target Wireless signal }, the target
Wireless signal is the wireless signal with the superposition of the first wireless signal.
7. method according to claim 5 or 6, which is characterized in that the step C further includes following steps:
Step C0. sends second wireless singal；
Wherein, the occupied running time-frequency resource of the first wireless signal and the occupied running time-frequency resource whole of second wireless singal or portion
Divide and is overlapped.
8. the method according to the description of claim 7 is characterized in that the second signaling indicates the second performance number, wherein the second power
Value is transmission power of the second wireless singal on the given running time-frequency resource.
9. a kind of user equipment for supporting multi-user to be superimposed, wherein including following module:
First module: for receiving the first signaling, the first signaling indicates K1 candidate power value；
Second module: for receiving the second signaling, the second signaling indicates the first performance number；
Third module: for receiving the first wireless signal；
Wherein, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, and the first performance number is first
Transmission power of the wireless signal on given running time-frequency resource, the first performance number is one in the K1 candidate power value；
The user equipment determines the first performance number according to following one:
Select the signaling format of second signaling of；
Select K2 information bit in two the second signalings of；
Wherein, the K2 is positive integer.
10. a kind of base station equipment for supporting multi-user to be superimposed, wherein including following module:
First module: for sending the first signaling, the first signaling indicates K1 candidate power value；
Second module: for sending the second signaling, the second signaling indicates the first performance number；
Third module: for sending the first wireless signal；
Wherein, the K1 is greater than 1, and the first signaling is high-level signaling, and the second signaling is physical layer signaling, and the first performance number is first
Transmission power of the wireless signal on given running time-frequency resource, the first performance number is one in the K1 candidate power value；
The base station equipment indicates the first performance number by following one:
Select the signaling format of second signaling of；
Select K2 information bit in two the second signalings of；
Wherein, the K2 is positive integer.
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| CN201510141963.8A CN106162851B (en) | 2015-03-27 | 2015-03-27 | A kind of communication means and device of multi-user's superposition |
| PCT/CN2016/076610 WO2016155507A1 (en) | 2015-03-27 | 2016-03-17 | Method in ue supporting multiuser superposition, method in base station supporting multiuser superposition, and devices |
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| CN109983807A (en) * | 2016-11-24 | 2019-07-05 | 华为技术有限公司 | A kind of method, base station and the terminal of information transmission |
| WO2019028885A1 (en) * | 2017-08-11 | 2019-02-14 | 南通朗恒通信技术有限公司 | Method and device used in user equipment and base station of wireless communication |
| WO2019071459A1 (en) * | 2017-10-11 | 2019-04-18 | Oppo广东移动通信有限公司 | Power indication method, network device, terminal device and computer storage medium |
| CN110072274B (en) * | 2018-01-23 | 2021-11-23 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN110213012B (en) * | 2018-02-28 | 2021-11-23 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN110739988B (en) | 2018-07-20 | 2021-04-27 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
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