CN106304302A - For the method and apparatus indicating and obtaining power allocation information in MUST system - Google Patents
For the method and apparatus indicating and obtaining power allocation information in MUST system Download PDFInfo
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- CN106304302A CN106304302A CN201510250283.XA CN201510250283A CN106304302A CN 106304302 A CN106304302 A CN 106304302A CN 201510250283 A CN201510250283 A CN 201510250283A CN 106304302 A CN106304302 A CN 106304302A
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- user equipment
- reference signal
- power
- demodulated reference
- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/0026—Interference mitigation or co-ordination of multi-user interference
- H04J11/0036—Interference mitigation or co-ordination of multi-user interference at the receiver
- H04J11/004—Interference mitigation or co-ordination of multi-user interference at the receiver using regenerative subtractive interference cancellation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0003—Code application, i.e. aspects relating to how codes are applied to form multiplexed channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
-
- 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
- H04W52/244—Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
-
- 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
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/283—Power depending on the position of the mobile
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates in the base station of multi-user's stacking transmission (MUST) system for the method indicating the power allocation information of transmission mode based on demodulated reference signal (DM-RS), described multi-user's stacking transmission system includes base station, first user equipment and the second subscriber equipment, and described first user equipment and described second subscriber equipment are matched to carry out multi-user's stacking transmission by described base station, described first user equipment is the near-end user equipment of described base station, described second subscriber equipment is the remote user equipment of described base station, described method is included in described base station: obtain the first demodulated reference signal sequence that described first user equipment used and the second demodulated reference signal sequence that described second subscriber equipment is used；Judge that described first demodulated reference signal sequence is the most consistent with described second demodulated reference signal sequence；And to the transmission of described first user equipment and obtain the power distribution instruction that power allocation information is associated based on above-mentioned judged result.
Description
Technical field
The present invention generally relates to wireless communication field, more specifically, relates to one and exists
Multi-user's stacking transmission (Multiuser Superposition Transmission, MUST) is
For indicating the merit of transmission mode based on demodulated reference signal (DM-RS) in the base station of system
The method of rate distribution information, a kind of the first use in multi-user's stacking transmission (MUST) system
For obtaining the power of transmission mode based on demodulated reference signal (DM-RS) in the equipment of family
The method of distribution information, a kind of use in the base station of multi-user's stacking transmission (MUST) system
In the power allocation information indicating transmission mode of based on demodulated reference signal (DM-RS)
Device and one are used in the first user equipment of multi-user's stacking transmission (MUST) system
In the power allocation information obtaining transmission mode of based on demodulated reference signal (DM-RS)
Device.
Background technology
(list of references is seen: 3GPP RP-150496, " Study at downlink MUST
Downlink Multiuser Superposition Transmission for LTE”,MediaTek
Inc.), in job, research purpose is to enable them to same by multiple UE pairing
Time transmit the data of multiple layers and have no time, frequency separates with space layer (in identical money
The upper emission diversity scheme using identical spatial pre-coding vectorial or identical of source unit (RE)).
But, it is likely to occur serious interference between the UE of pairing.Fig. 1 shows that one exists
The signal of situation about interfering between the user equipment (UE) of pairing in MUST system 100
Figure.As shown in fig. 1, MUST system 100 includes base station eNB, user equipment (UE) 1
With user equipment (UE) 2, and user equipment (UE) 1 and user equipment (UE) 2 match by base station
To carry out MUST transmission.Owing to user equipment (UE) 2 is positioned at cell edge, therefore base station
ENB is the transmitting power that its distribution is bigger, and is positioned at the user equipment (UE) of center of housing estate position
1 allocated relatively small transmitting power.Receiving the downlink from base station
During MUST transmission, first the user equipment (UE) 1 with senior receiver is being supplied to use
From received signal, finger is decoded with the help of some auxiliary information of family equipment UE 1
To the signal of user equipment (UE) 2, from received signal, then remove subscriber equipment
The signal of UE 2, decodes sensing their own i.e. subscriber equipment the most again from remaining signal
The Physical Shared Channel PDSCH data of UE1.Therefore, user equipment (UE) 2 produced
Interference signal whether can be removed and user equipment (UE) 1 can to what extent go
Except interference decodes the data of their own by most important for user equipment (UE) 1.
In order to decode the signal of user equipment (UE) 2 at user equipment (UE) 1, in the two of pairing
The information of relevant the distributed through-put power between individual subscriber equipment is for user equipment (UE) 1
Receiver for it is critical that.In the case of there is no power allocation information, want
It will be extremely difficult for correctly decoding out the interference signal at near-end user equipment i.e. UE1
, and this will also influence whether at the signal passing through decoded remote user equipment UE2
With the help of eliminate the physical down link of near-end user equipment UE 1 self after interference altogether
Enjoy the decoding correctness of channel PDSCH data.But, among MUST system not
Define how to specify to user equipment (UE) from base station eNB the instruction of power distribution in a standard
Information.
Therefore, near-end user equipment UE 1 how is made can be come by the instruction of base station eNB
Learn himself distributed launch power and with its interference subscriber equipment matched i.e.
The transmitting power distributed of remote user equipment UE2 is highly studied.
Currently have and limit ten kinds of different transmission modes for LTE system
(Transmission Mode:TM).These ten kinds of transmission mode differences are specific antenna
Mapping structure and also distinguish used for demodulating, (corresponding community is specifically joined out
Signal or demodulated reference signal (DM-RS)) it is which kind of reference signal and how by end
End obtains channel condition information CSI and is fed back to network side.DM-RS is the most also
Be referred to as the specific reference signal of subscriber equipment, be intended to for by terminal to carry out channel estimation
So that the follow-up transmission mode at also referred to as based on transmission mode TM DM-RS is 7
Coherent demodulation to physical down link sharing channel PDSCH when 10.
At document " 3GPP 36.213, " 3rd generation partnership project；
technical specification group radio access network；evolved universal
terrestrial radio access(e-utra)；Physical layer procedures " " among describe
Demodulated reference signal DM-RS based on transmission mode TM.If subscriber equipment is specifically joined
Examine signal and occur on the PRB that corresponding PDSCH is mapped, then subscriber equipment energy
Enough suppose ENERGY E PRE and the specific reference of subscriber equipment of each resource element of PDSCH
The ratio of ENERGY E PRE of each resource element of signal for transport layer quantity less than or
It is 0dB and is that-3dB is (in transmission mode 9 and 10 for other situations when person is equal to two
Among).Therefore, in most cases (except among transmission mode 9 and 10 when
When the quantity of transport layer is more than two) the demodulated reference signal i.e. DM-RS of this user equipment (UE)
Power that is the power of the specific reference signal of subscriber equipment equal to its PDSCH power.Cause
This, obtain the knowledge about its DM-RS sequence with instruction, then from base station eNB
Subscriber equipment can be known the power of its PDSCH channel.
But, when multi-user's stacking is transmitted, the subscriber equipment of pairing uses in identical money
Identical space layer pre-coding matrix on source element RE or identical transmission diversity.Institute
The subscriber equipment of pairing can be with the transmitting merit distributed on identical resource element RE
Rate uses identical demodulated reference signal sequence also to be able to use different demodulated reference signal sequences
Row.How by being derived from instruction and the decoding of corresponding DM-RS sequence of base station eNB
Obtain near-end/victim user equipment and at near-end user equipment, obtain far-end/interference use
The power allocation information of family equipment is not by existing 3GPP standard, and this will be to first
Decoding and eliminate thereafter the subscriber equipment signal of interference bring difficulty and for afterwards near-end/
The data decoding himself at victim user equipment bring difficulty.
Summary of the invention
In order to overcome lacking of the i.e. prior art of the technical problem described by background section above
Point, the present inventor proposes how in the case of DM-RS based on transmission mode
The method that proximally user equipment (UE) carrys out indicated horsepower distribution information is carried out by base station eNB.
Based on above-mentioned consideration, present applicant proposes a kind of at multi-user's stacking transmission (Multiuser
Superposition Transmission, MUST) system base station in for instruction based on solution
Adjust the method for power allocation information of transmission mode of reference signal (DM-RS), Yi Zhong
For obtaining based on demodulation in the first user equipment of multi-user's stacking transmission (MUST) system
The method of the power allocation information of the transmission mode of reference signal (DM-RS), one are many
For instruction based on demodulated reference signal in the base station of user's stacking transmission (MUST) system
(DM-RS) device of the power allocation information of transmission mode and one are at multi-user's layer
For obtaining based on demodulated reference signal in the first user equipment of folded transmission (MUST) system
(DM-RS) device of the power allocation information of transmission mode.
Propose a kind of in multi-user's stacking transmission (MUST) according to the first aspect of the invention
For indicating transmission mode based on demodulated reference signal (DM-RS) in the base station of system
The method of power allocation information, described multi-user's stacking transmission system includes base station, the first use
Family equipment and the second subscriber equipment, and described base station is by described first user equipment and described
Second subscriber equipment matches to carry out multi-user's stacking transmission, and described first user equipment is institute
Stating the near-end user equipment of base station, described second subscriber equipment is the remote subscriber of described base station
Equipment, described method is included in described base station:
-obtain the first demodulated reference signal sequence and institute that described first user equipment is used
State the second demodulated reference signal sequence that the second subscriber equipment is used；
-judge described first demodulated reference signal sequence and described second demodulated reference signal sequence
Arrange the most consistent；And
-send and acquisition power distribution to described first user equipment based on above-mentioned judged result
The power distribution instruction that information is associated.
Among according to one embodiment of the present of invention, when judged result is described first demodulation
When reference signal sequence is consistent with described second demodulated reference signal sequence, described power distributes
Instruction comprises transmitting power and the transmitting of described second subscriber equipment of described first user equipment
Power offset value between power.
Among according to one embodiment of the present of invention, the distribution instruction of described power also comprises little
District's identifier.
Among according to one embodiment of the present of invention, when judged result is described first demodulation
When reference signal sequence is inconsistent with described second demodulated reference signal sequence, described power divides
Join instruction and comprise the of the first demodulated reference signal sequence that described first user equipment used
The of the second demodulated reference signal sequence that one identifier and described second subscriber equipment are used
Two identifiers are used not to distinguish described first user equipment and described second subscriber equipment
Same demodulated reference signal sequence.
Among according to one embodiment of the present of invention, the distribution instruction of described power also comprises nothing
Line Network Temporary Identifier designator.
Among according to one embodiment of the present of invention, it is associated with obtaining power allocation information
Described power distribution instruction by high-level signaling or at physical downlink control channel
(PDCCH) down link control information on and send to described first user equipment.
Propose a kind of in multi-user's stacking transmission (MUST) according to the second aspect of the invention
For obtaining biography based on demodulated reference signal (DM-RS) in the first user equipment of system
The method of the power allocation information of defeated pattern, described multi-user's stacking transmission system include base station,
First user equipment and the second subscriber equipment, and described base station is by described first user equipment
Matching with described second subscriber equipment to carry out multi-user's stacking transmission, described first user sets
Standby is the near-end user equipment of described base station, and described second subscriber equipment is the remote of described base station
End user device, described method is included at described first user equipment:
-receive from described base station and obtain the power that power allocation information is associated and distribute and refer to
Show；
-determine that described first user sets according to the content included in the distribution instruction of described power
Standby the first demodulated reference signal sequence used and described second subscriber equipment used the
Two demodulated reference signal sequences and distribute to described first user equipment first transmitting power
The second transmitting power with described second subscriber equipment；And
-according to described first and second demodulated reference signal sequences and described first and second
Launch power and decode the physical down link sharing channel number pointing to described first user equipment
According to.
Among according to one embodiment of the present of invention, when described first demodulated reference signal sequence
Arrange in consistent with each other with described second demodulated reference signal sequence and described power distribution instruction
Comprise described first user equipment launches power and the transmitting power of described second subscriber equipment
Between power offset value time, described first user equipment decoding described first demodulation with reference to letter
Number sequence and/or described second demodulated reference signal sequence set to obtain as described first user
The standby demodulated reference signal launching power sum launching power and described second subscriber equipment
Power and calculate institute based on described demodulated reference signal power and described power offset value
That states first user equipment launches power and the transmitting power of described second subscriber equipment.
Among according to one embodiment of the present of invention, when described first demodulated reference signal sequence
Arrange the distribution instruction of mutually internally inconsistent with described second demodulated reference signal sequence and described power
In comprise and used not for distinguishing described first user equipment and described second subscriber equipment
The first demodulated reference signal that the first user equipment of same demodulated reference signal sequence is used
The second demodulated reference signal that first identifier of sequence and described second subscriber equipment are used
During the second identifier of sequence, described first user equipment:
-decode described second demodulated reference signal sequence to obtain according to described second identifier
Power is launched to distribute to described second subscriber equipment described second；
-launch power according to the second demodulated reference signal sequence decoded and described second
Estimate that channel is to decode the signal of described second subscriber equipment；
-by described second launch power from the signal received by described first user equipment it
Decode after middle elimination the described first demodulated reference signal sequence of described first user equipment with
Obtain described first user equipment described first launches power；
-eliminate described second demodulated reference signal sequence pair according to described first transmitting power
In the interference of described first demodulated reference signal sequence and thus estimate described channel, in order to
Decode the physical down link sharing channel data of described first user equipment.
Among according to one embodiment of the present of invention, described first user equipment is by high level
Signaling or the downlink on physical downlink control channel (PDCCH) control letter
Breath obtains from described base station and obtains the described power distribution that power allocation information is associated and refer to
Show.
Propose a kind of in multi-user's stacking transmission (MUST) according to the third aspect of the invention we
For indicating transmission mode based on demodulated reference signal (DM-RS) in the base station of system
The device of power allocation information, described multi-user's stacking transmission system includes base station, the first use
Family equipment and the second subscriber equipment, and described base station is by described first user equipment and described
Second subscriber equipment matches to carry out multi-user's stacking transmission, and described first user equipment is institute
Stating the near-end user equipment of base station, described second subscriber equipment is the remote subscriber of described base station
Equipment, described device includes:
-acquiring unit, it obtains the first demodulation reference letter that described first user equipment is used
The second demodulated reference signal sequence that number sequence and described second subscriber equipment are used；
-judging unit, it judges described first demodulated reference signal sequence and described second demodulation
Reference signal sequence is the most consistent；And
-transmitting element, it and obtains to the transmission of described first user equipment based on above-mentioned judged result
Obtain the power distribution instruction that power allocation information is associated.
Propose a kind of in multi-user's stacking transmission (MUST) according to the fourth aspect of the invention
For obtaining biography based on demodulated reference signal (DM-RS) in the first user equipment of system
The device of the power allocation information of defeated pattern, described multi-user's stacking transmission system include base station,
First user equipment and the second subscriber equipment, and described base station is by described first user equipment
Matching with described second subscriber equipment to carry out multi-user's stacking transmission, described first user sets
Standby is the near-end user equipment of described base station, and described second subscriber equipment is the remote of described base station
End user device, described device includes:
-receiving unit, it receives from described base station and obtains what power allocation information was associated
Power distribution instruction；
-determining unit, it determines described according to the content included in the distribution instruction of described power
The first demodulated reference signal sequence that first user equipment is used and described second subscriber equipment
The second demodulated reference signal sequence of being used and distribute to the of described first user equipment
One the second transmitting power launching power and described second subscriber equipment；And
-decoding unit, it is according to described first and second demodulated reference signal sequences and described
First and second launch power decodes the physical down link pointing to described first user equipment
Share channel data.
To be limited by appending claims according to the protection domain of the solution of the present invention
It is fixed, as long as those skilled in the art does not take off by being combined different features, revising
The technical scheme formed from the design of the present invention each falls among protection scope of the present invention.
It is expanded on further according to technical scheme below with reference to accompanying drawing.
Accompanying drawing explanation
Description by the detailed description of the invention below with reference to the present invention given by drawings below
Afterwards, it is better understood with the present invention, and other objects of the present invention, details, feature
Will become apparent from advantage.In the accompanying drawings:
Fig. 1 shows a kind of feelings interfered between the UE of pairing in MUST system
The schematic diagram of condition；
Fig. 2 shows according to an embodiment of the invention in multi-user's stacking transmission
For indicating transmission mode based on demodulated reference signal DM-RS in the base station of MUST system
Flow process Figure 200 of method of power allocation information；And
Fig. 3 shows according to an embodiment of the invention in multi-user's stacking transmission
The first user equipment of MUST system is used for acquisition based on demodulated reference signal DM-RS
The flow chart 300 of the method for the power allocation information of transmission mode.
In the drawings, run through different diagrams, same or similar reference represent identical or
Similar device (module) or step.
Detailed description of the invention
In the specific descriptions of following preferred embodiment, will be with reference to constituting a present invention part
Appended accompanying drawing.Appended accompanying drawing has been illustrated by way of example and has been capable of the present invention
Specific embodiment.The embodiment of example is not intended as the limit all realities according to the present invention
Execute example.It is appreciated that without departing from the scope of the present invention, it is possible to use other
Embodiment, it is also possible to carry out the structural or amendment of logicality.Therefore, following concrete
Describe and nonrestrictive, and the scope of the present invention is defined by the claims appended hereto.
In MUST system, first near-end UE should decode the data of distally directed UE,
Then from the transmission received, the data of far-end UE are removed, the most again from remaining transmission
Decode the data pointing to oneself.
Fig. 1 shows a kind of feelings interfered between the UE of pairing in MUST system
The schematic diagram of condition, this figure adds in detail at the background section of the description of the present invention
To describe, therefore do not repeat them here.
Fig. 2 shows according to an embodiment of the invention in multi-user's stacking transmission
For indicating transmission mode based on demodulated reference signal DM-RS in the base station of MUST system
Flow process Figure 200 of method of power allocation information.As can be seen from the figure a kind of multi-user
For instruction based on demodulated reference signal in the base station of stacking transmission (MUST) system
(DM-RS) method 200 of the power allocation information of transmission mode, multi-user's stacking passes
Communication system includes base station, first user equipment and the second subscriber equipment, and base station is by first
Subscriber equipment and the second subscriber equipment match to carry out multi-user's stacking transmission, and first user sets
Standby is the near-end user equipment of base station, and the second subscriber equipment is the remote user equipment of base station,
Method is included in base station:
First, first user equipment will be obtained among method step 210 by base station to be used
The first demodulated reference signal sequence and the second subscriber equipment used second demodulation with reference to letter
Number sequence；
Then, the first demodulated reference signal sequence will be judged among method step 220 by base station
Arrange the most consistent with the second demodulated reference signal sequence；And
Finally, will by base station among method step 230 based on above-mentioned judged result to first
Subscriber equipment sends and obtains the power distribution instruction that power allocation information is associated.
More specifically, above-mentioned first user equipment and the second subscriber equipment can use phase
Same demodulated reference signal sequence or different demodulated reference signal sequences.According to this
Among a bright embodiment, when judged result is the first demodulated reference signal sequence and second
When demodulated reference signal sequence is consistent, power distribution instruction comprises the transmitting of first user equipment
Power and the power offset value launched between power of the second subscriber equipment.Additionally, in foundation
Among one embodiment of the present of invention, power distribution instruction can also comprise cell identifier.
In contrast, among according to one embodiment of the present of invention, when judged result is
When first demodulated reference signal sequence is inconsistent with the second demodulated reference signal sequence, power divides
Join the first mark that instruction comprises the first demodulated reference signal sequence that first user equipment is used
Know the second identifier of the second demodulated reference signal sequence that symbol is used with the second subscriber equipment
The different demodulated reference signal used with differentiation first user equipment and the second subscriber equipment
Sequence.Additionally, among according to one embodiment of the present of invention, power distribution instruction is also wrapped
Containing Radio Network Temporary Identifier designator.
It will be understood by those of skill in the art that above-mentioned relevant to obtaining power allocation information
The power distribution instruction of connection can be sent to above-mentioned first user equipment in several ways,
Such as, among according to one embodiment of the present of invention, relevant to obtaining power allocation information
The power distribution instruction of connection is by high-level signaling or at physical downlink control channel
(PDCCH) down link control information on and send to first user equipment.
Fig. 3 shows according to an embodiment of the invention in multi-user's stacking transmission
The first user equipment of MUST system is used for acquisition based on demodulated reference signal DM-RS
The flow chart 300 of the method for the power allocation information of transmission mode.As can be seen from the figure many
For obtaining based on demodulation ginseng in the first user equipment of user's stacking transmission (MUST) system
Examine the method 300 of the power allocation information of the transmission mode of signal (DM-RS), multi-user
Stacking transmission system includes base station, first user equipment and the second subscriber equipment, and base station
First user equipment and the second subscriber equipment are matched to carry out multi-user's stacking transmission, first
Subscriber equipment is the near-end user equipment of base station, and the second subscriber equipment is the remote subscriber of base station
Equipment, method is included at first user equipment:
First receive from base station among first method step 310 and obtain power distribution letter
The power distribution instruction of manner of breathing association；
Then in distributing included in instruction according to power among second method step 320
Hold and determine that the first demodulated reference signal sequence that first user equipment used and the second user set
Standby the second demodulated reference signal sequence used and distribute to the first of first user equipment
Launch the second transmitting power of power and the second subscriber equipment；And
Finally according to the first and second demodulated reference signal sequences among third method step 330
Row and first and second are launched power and are decoded the physical down chain pointing to first user equipment
Channel data is shared on road.
More specifically, above-mentioned first user equipment and the second subscriber equipment can use phase
Same demodulated reference signal sequence or different demodulated reference signal sequences.According to this
Among a bright embodiment, when the first demodulated reference signal sequence and the second demodulation are with reference to letter
Number sequence is consistent with each other and comprises the transmitting power of first user equipment in power distribution instruction
And during second power offset value launched between power of subscriber equipment, first user equipment solution
Code the first demodulated reference signal sequence and/or the second demodulated reference signal sequence are to obtain as the
The demodulation reference launching power sum launching power and the second subscriber equipment of one subscriber equipment
Signal power and calculate the first use based on demodulated reference signal power and power offset value
The transmitting power of family equipment and the transmitting power of the second subscriber equipment.
In contrast, among according to one embodiment of the present of invention, when the first demodulation ginseng
Examine signal sequence and the second demodulated reference signal sequence is mutually internally inconsistent and power distribution instruction
In comprise the different demodulation for distinguishing first user equipment and the second subscriber equipment is used
The of the first demodulated reference signal sequence that the first user equipment of reference signal sequence is used
Second mark of the second demodulated reference signal sequence that one identifier and the second subscriber equipment are used
When knowing symbol, first user equipment:
-decode the second demodulated reference signal sequence to be distributed to according to the second identifier
Second transmitting power of the second subscriber equipment；
-estimate according to the second demodulated reference signal sequence decoded and the second transmitting power
Meter channel is to decode the signal of the second subscriber equipment；
-the second transmitting power is eliminated it among the signal received by first user equipment
First demodulated reference signal sequence of rear decoding first user equipment is to obtain first user equipment
First transmitting power；
-eliminate the second demodulated reference signal sequence for the first solution according to the first transmitting power
Adjust the interference of reference signal sequence and thus estimate channel, in order to decoding first user equipment
Physical down link sharing channel data.
It will be understood by those of skill in the art that above-mentioned relevant to obtaining power allocation information
The power distribution instruction of connection can be sent to above-mentioned first user equipment in several ways,
Such as, among according to one embodiment of the present of invention, first user equipment is believed by high level
Order or the down link control information on physical downlink control channel (PDCCH)
Obtain from base station and obtain the power distribution instruction that power allocation information is associated.
Additionally, the invention allows for implementing the corresponding device of said method.According to this
Invention proposes one and is used for indicating in the base station of multi-user's stacking transmission (MUST) system
The device of the power allocation information of transmission mode based on demodulated reference signal (DM-RS),
Multi-user's stacking transmission system includes base station, first user equipment and the second subscriber equipment, and
And first user equipment and the second subscriber equipment match to carry out multi-user's stacking biography by base station
Defeated, first user equipment is the near-end user equipment of base station, and the second subscriber equipment is base station
Remote user equipment, this device includes:
-acquiring unit, it obtains the first demodulated reference signal sequence that first user equipment is used
The second demodulated reference signal sequence that row and the second subscriber equipment are used；
-judging unit, it judges the first demodulated reference signal sequence and the second demodulated reference signal
Sequence is the most consistent；And
-transmitting element, it sends and acquisition merit to first user equipment based on above-mentioned judged result
The power distribution instruction that rate distribution information is associated.
It is proposed according to the present invention to it is a kind of in the of multi-user's stacking transmission (MUST) system
For obtaining transmission mode based on demodulated reference signal (DM-RS) in one subscriber equipment
The device of power allocation information, multi-user's stacking transmission system includes that base station, first user set
Standby and the second subscriber equipment, and first user equipment and the second subscriber equipment matches by base station
To carry out multi-user's stacking transmission, first user equipment is the near-end user equipment of base station, the
Two subscriber equipmenies are the remote user equipments of base station, and this device includes:
-receiving unit, it receives from base station and obtains the power that power allocation information is associated
Distribution instruction；
-determining unit, it determines first user according to the content included in power distribution instruction
The first demodulated reference signal sequence that equipment is used and the second subscriber equipment is used second
Demodulated reference signal sequence and distribute to first user equipment first transmitting power and second
Second transmitting power of subscriber equipment；And
-decoding unit, it is according to the first and second demodulated reference signal sequences and first and
Two launch power decodes the physical down link sharing channel number pointing to first user equipment
According to.
Those of ordinary skill in the art it is also understood that and combine what embodiments herein described
Various exemplary logical blocks, module, circuit and algorithm steps can be implemented as electronic hardware,
Computer software or combination.This in order to clearly show that between hardware and software
Interchangeability, all encloses various exemplary parts, block, module, circuit and step above
General description has been carried out around its function.It is implemented as hardware as this function still to realize
Become software, depend on specifically applying and apply design constraint over the whole system.
Those skilled in the art can realize described for every kind of application-specific in the way of flexible
Function, but, this realize decision-making and should not be interpreted as causing a departure from the scope of this disclosure.
It is obvious to a person skilled in the art that the invention is not restricted to above-mentioned exemplary enforcement
The details of example, and without departing from the spirit or essential characteristics of the present invention, it is possible to
Realize the present invention in other specific forms.Therefore, in any case from the point of view of, all should will implement
Example regards exemplary as, and is nonrestrictive.Additionally, it will be evident that " including " one
Word is not excluded for other elements and step, and wording " one " is not excluded for plural number.Device right
In requirement, multiple elements of statement can also be realized by an element.The first, the second word such as grade
Pragmatic represents title, and is not offered as any specific order.
The above description of the disclosure is for making any those of ordinary skill of this area be capable of
Or the use present invention.To those skilled in the art, the various amendments of the disclosure
Will be apparent from, and general principle defined herein can also be without departing from this
Other deformation it is applied in the case of bright spirit and scope.Therefore, the present invention is not
Be limited to example as herein described and design, but with principle disclosed herein and novel features
The widest scope consistent.
Claims (12)
1. one kind is used for indicating base in the base station of multi-user's stacking transmission (MUST) system
In the method for power allocation information of the transmission mode of demodulated reference signal (DM-RS), institute
State multi-user's stacking transmission system and include base station, first user equipment and the second subscriber equipment,
And described first user equipment and described second subscriber equipment are matched to carry out by described base station
Multi-user's stacking is transmitted, and described first user equipment is the near-end user equipment of described base station,
Described second subscriber equipment is the remote user equipment of described base station, and described method is included in institute
State base station:
-obtain the first demodulated reference signal sequence and institute that described first user equipment is used
State the second demodulated reference signal sequence that the second subscriber equipment is used；
-judge described first demodulated reference signal sequence and described second demodulated reference signal sequence
Arrange the most consistent；And
-send and acquisition power distribution to described first user equipment based on above-mentioned judged result
The power distribution instruction that information is associated.
Method the most according to claim 1, wherein, when judged result is described first
When demodulated reference signal sequence is consistent with described second demodulated reference signal sequence, described power
What distribution instruction comprised described first user equipment launches power and described second subscriber equipment
Launch the power offset value between power.
Method the most according to claim 2, wherein, the distribution instruction of described power is also wrapped
Containing cell identifier.
Method the most according to claim 1, wherein, when judged result is described first
When demodulated reference signal sequence is inconsistent with described second demodulated reference signal sequence, described merit
Rate distribution instruction comprises the first demodulated reference signal sequence that described first user equipment is used
The first identifier and the second demodulated reference signal sequence of being used of described second subscriber equipment
The second identifier used to distinguish described first user equipment and described second subscriber equipment
Different demodulated reference signal sequences.
Method the most according to claim 4, wherein, the distribution instruction of described power is also wrapped
Containing Radio Network Temporary Identifier designator.
Method the most according to claim 1, wherein, with acquisition power allocation information phase
The described power distribution instruction of association controls letter by high-level signaling or at physical down link
Down link control information on road (PDCCH) and send to described first user equipment.
7. one kind is used in the first user equipment of multi-user's stacking transmission (MUST) system
Obtain the side of the power allocation information of transmission mode based on demodulated reference signal (DM-RS)
Method, described multi-user's stacking transmission system includes base station, first user equipment and the second user
Equipment, and described base station is by described first user equipment and described second subscriber equipment pairing
To carry out multi-user's stacking transmission, described first user equipment is the near-end user of described base station
Equipment, described second subscriber equipment is the remote user equipment of described base station, described method bag
Include at described first user equipment:
-receive from described base station and obtain the power that power allocation information is associated and distribute and refer to
Show；
-determine that described first user sets according to the content included in the distribution instruction of described power
Standby the first demodulated reference signal sequence used and described second subscriber equipment used the
Two demodulated reference signal sequences and distribute to described first user equipment first transmitting power
The second transmitting power with described second subscriber equipment；And
-according to described first and second demodulated reference signal sequences and described first and second
Launch power and decode the physical down link sharing channel number pointing to described first user equipment
According to.
Method the most according to claim 7, wherein, when described first demodulation is with reference to letter
Number sequence and described second demodulated reference signal sequence is consistent with each other and described power distribution refers to
Comprise described first user equipment in showing launches power and the transmitting of described second subscriber equipment
During power offset value between power, the described first demodulation ginseng of described first user equipment decoding
Examine signal sequence and/or described second demodulated reference signal sequence to use to obtain as described first
The demodulation reference launching power sum launching power and described second subscriber equipment of family equipment
Signal power and calculating based on described demodulated reference signal power and described power offset value
Go out described first user equipment launches power and the transmitting power of described second subscriber equipment.
Method the most according to claim 7, wherein, when described first demodulation is with reference to letter
Number sequence is mutually internally inconsistent with described second demodulated reference signal sequence and described power distribution
Instruction comprises and is used for distinguishing described first user equipment and described second subscriber equipment
The the first demodulation reference that used of the first user equipment of different demodulated reference signal sequences
The second demodulation reference that first identifier of signal sequence and described second subscriber equipment are used
During the second identifier of signal sequence, described first user equipment:
-decode described second demodulated reference signal sequence to obtain according to described second identifier
Power is launched to distribute to described second subscriber equipment described second；
-launch power according to the second demodulated reference signal sequence decoded and described second
Estimate that channel is to decode the signal of described second subscriber equipment；
-by described second launch power from the signal received by described first user equipment it
Decode after middle elimination the described first demodulated reference signal sequence of described first user equipment with
Obtain described first user equipment described first launches power；
-eliminate described second demodulated reference signal sequence pair according to described first transmitting power
In the interference of described first demodulated reference signal sequence and thus estimate described channel, in order to
Decode the physical down link sharing channel data of described first user equipment.
Method the most according to claim 7, wherein, described first user equipment passes through
High-level signaling or the downlink control on physical downlink control channel (PDCCH)
Information processed obtains from described base station and obtains the described power distribution that power allocation information is associated
Instruction.
11. 1 kinds are used for indicating base in the base station of multi-user's stacking transmission (MUST) system
In the device of power allocation information of the transmission mode of demodulated reference signal (DM-RS), institute
State multi-user's stacking transmission system and include base station, first user equipment and the second subscriber equipment,
And described first user equipment and described second subscriber equipment are matched to carry out by described base station
Multi-user's stacking is transmitted, and described first user equipment is the near-end user equipment of described base station,
Described second subscriber equipment is the remote user equipment of described base station, and described device includes:
-acquiring unit, it obtains the first demodulation reference letter that described first user equipment is used
The second demodulated reference signal sequence that number sequence and described second subscriber equipment are used；
-judging unit, it judges described first demodulated reference signal sequence and described second demodulation
Reference signal sequence is the most consistent；And
-transmitting element, it and obtains to the transmission of described first user equipment based on above-mentioned judged result
Obtain the power distribution instruction that power allocation information is associated.
Use in the first user equipment of multi-user's stacking transmission (MUST) system for 12. 1 kinds
In the power allocation information obtaining transmission mode of based on demodulated reference signal (DM-RS)
Device, described multi-user's stacking transmission system includes that base station, first user equipment and second are used
Family equipment, and described first user equipment and described second subscriber equipment joined by described base station
To carry out multi-user's stacking transmission, described first user equipment is that the near-end of described base station is used
Family equipment, described second subscriber equipment is the remote user equipment of described base station, described device
Including:
-receiving unit, it receives from described base station and obtains what power allocation information was associated
Power distribution instruction；
-determining unit, it determines described according to the content included in the distribution instruction of described power
The first demodulated reference signal sequence that first user equipment is used and described second subscriber equipment
The second demodulated reference signal sequence of being used and distribute to the of described first user equipment
One the second transmitting power launching power and described second subscriber equipment；And
-decoding unit, it is according to described first and second demodulated reference signal sequences and described
First and second launch power decodes the physical down link pointing to described first user equipment
Share channel data.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250283.XA CN106304302B (en) | 2015-05-15 | 2015-05-15 | The method and apparatus of power allocation information are used to indicate and obtained in MUST system |
| TW105113999A TW201717588A (en) | 2015-05-15 | 2016-05-05 | Methods of and apparatuses for indicating and obtaining power allocation information in must system |
| PCT/IB2016/000728 WO2016185273A1 (en) | 2015-05-15 | 2016-05-09 | Methods of and apparatuses for indicating and obtaining power allocation information in must system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250283.XA CN106304302B (en) | 2015-05-15 | 2015-05-15 | The method and apparatus of power allocation information are used to indicate and obtained in MUST system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106304302A true CN106304302A (en) | 2017-01-04 |
| CN106304302B CN106304302B (en) | 2019-09-13 |
Family
ID=56098286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510250283.XA Active CN106304302B (en) | 2015-05-15 | 2015-05-15 | The method and apparatus of power allocation information are used to indicate and obtained in MUST system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106304302B (en) |
| TW (1) | TW201717588A (en) |
| WO (1) | WO2016185273A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111194533A (en) * | 2017-08-11 | 2020-05-22 | 弗劳恩霍夫应用研究促进协会 | Concept for transmitting data to one or more users |
| WO2020259583A1 (en) * | 2019-06-28 | 2020-12-30 | 华为技术有限公司 | Reference signal transmission method and communication apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102111893A (en) * | 2009-12-23 | 2011-06-29 | 富士通株式会社 | Method and device for transmitting downlink scheduling singling |
| CN102148659A (en) * | 2010-02-10 | 2011-08-10 | 中兴通讯股份有限公司 | Transmission power configuration method and device for demodulation reference signals |
| US20140044091A1 (en) * | 2011-05-20 | 2014-02-13 | Ntt Docomo, Inc. | Receiver, transmitter and radio communication method |
-
2015
- 2015-05-15 CN CN201510250283.XA patent/CN106304302B/en active Active
-
2016
- 2016-05-05 TW TW105113999A patent/TW201717588A/en unknown
- 2016-05-09 WO PCT/IB2016/000728 patent/WO2016185273A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102111893A (en) * | 2009-12-23 | 2011-06-29 | 富士通株式会社 | Method and device for transmitting downlink scheduling singling |
| CN102148659A (en) * | 2010-02-10 | 2011-08-10 | 中兴通讯股份有限公司 | Transmission power configuration method and device for demodulation reference signals |
| US20140044091A1 (en) * | 2011-05-20 | 2014-02-13 | Ntt Docomo, Inc. | Receiver, transmitter and radio communication method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111194533A (en) * | 2017-08-11 | 2020-05-22 | 弗劳恩霍夫应用研究促进协会 | Concept for transmitting data to one or more users |
| CN111194533B (en) * | 2017-08-11 | 2022-06-24 | 弗劳恩霍夫应用研究促进协会 | Apparatus and method for transmitting data to one or more users |
| US11489639B2 (en) | 2017-08-11 | 2022-11-01 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Concepts for transmitting data to one or more users |
| WO2020259583A1 (en) * | 2019-06-28 | 2020-12-30 | 华为技术有限公司 | Reference signal transmission method and communication apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106304302B (en) | 2019-09-13 |
| WO2016185273A1 (en) | 2016-11-24 |
| TW201717588A (en) | 2017-05-16 |
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