CN106304302B - The method and apparatus of power allocation information are used to indicate and obtained in MUST system - Google Patents
The method and apparatus of power allocation information are used to indicate and obtained in MUST system Download PDFInfo
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- CN106304302B CN106304302B CN201510250283.XA CN201510250283A CN106304302B CN 106304302 B CN106304302 B CN 106304302B CN 201510250283 A CN201510250283 A CN 201510250283A CN 106304302 B CN106304302 B CN 106304302B
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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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- 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
- 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
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- 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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
-
- 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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- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to the methods for the power allocation information that the transmission mode based on demodulated reference signal (DM-RS) is used to indicate in the base station that transmission (MUST) system is laminated in multi-user, it includes base station that Transmission system, which is laminated, in the multi-user, first user equipment and second user equipment, and transmission is laminated to carry out multi-user in first user equipment and the second user device pairing by the base station, first user equipment is the near-end user equipment of the base station, the second user equipment is the remote user equipment of the base station, the method includes in the base station: obtaining the second demodulated reference signal sequence used in the first demodulated reference signal sequence used in first user equipment and the second user equipment；Judge whether the first demodulated reference signal sequence and the second demodulated reference signal sequence are consistent；And power distribution associated with power allocation information is obtained is sent to first user equipment based on above-mentioned judging result and is indicated.
Description
Technical field
The present invention is generally related to wireless communication field, more specifically, is related to a kind of be laminated in multi-user and transmits
It is used to indicate in the base station of (Multiuser Superposition Transmission, MUST) system and is believed based on demodulation reference
The method of the power allocation information of the transmission mode of number (DM-RS) a kind of the first of transmission (MUST) system is laminated in multi-user
For obtaining method, one kind of the power allocation information of the transmission mode based on demodulated reference signal (DM-RS) in user equipment
The transmission mode based on demodulated reference signal (DM-RS) is used to indicate in the base station that transmission (MUST) system is laminated in multi-user
The device and one kind of power allocation information are in the first user equipment that transmission (MUST) system is laminated in multi-user for obtaining
The device of the power allocation information of transmission mode based on demodulated reference signal (DM-RS).
Background technique
In downlink MUST (referring to bibliography: 3GPP RP-150496, " Study on Downlink
Multiuser Superposition Transmission for LTE ", MediaTek Inc.) job in, research
Purpose is that multiple UE pairing is enabled them to multiple layers of simultaneous transmission of data without time, frequency and space layer point
From (using identical spatial pre-coding vector or identical emission diversity scheme i.e. on same resource units (RE)).
However, being likely to occur serious interference between the UE of pairing.Fig. 1 shows one kind and matches in MUST system 100
User equipment (UE) between the case where interfering with each other schematic diagram.As shown in fig. 1, MUST system 100 includes base station eNB, is used
Family equipment UE 1 and user equipment (UE) 2, and base station matches user equipment (UE) 1 and user equipment (UE) 2 to carry out MUST biography
It is defeated.Since user equipment (UE) 2 is located at cell edge, base station eNB distributes biggish transmission power for it, and is located at cell
The user equipment (UE) 1 of center is then assigned relatively small transmission power.Receiving the downlink from base station
When MUST is transmitted, the user equipment (UE) 1 with advanced receiver is first in some auxiliary letter for being supplied to user equipment (UE) 1
The signal for being directed toward user equipment (UE) 2 is decoded with the help of breath from received signal, then from received signal
The signal of middle removal user equipment (UE) 2, finally decodes from remaining signal again and is directed toward the i.e. user equipment (UE) 1 of their own
Physical Shared Channel PDSCH data.Therefore, whether the interference signal as caused by user equipment (UE) 2 can be removed and use
Family equipment UE 1 can to what extent remove the data that interference decodes their own for user equipment (UE) 1 will be most important.
In order to decode the signal of user equipment (UE) 2, having between two user equipmenies of pairing at user equipment (UE) 1
The information for closing distributed transimission power is vital for the receiver of user equipment (UE) 1.In no power point
In the case where with information, to correctly decode out the interference signal at near-end user equipment, that is, UE1 will be it is extremely difficult,
And this will also influence whether to eliminate with the help of passing through the signal of remote user equipment UE2 decoded close after interfering
The decoding correctness of the physical down link sharing channel PDSCH data of end user device UE1 itself.However, in MUST system
Among do not define how the instruction information that power distribution is specified from base station eNB to user equipment (UE) in a standard.
Therefore, near-end user equipment UE1 how is enabled to pass through the instruction of base station eNB to learn being distributed for its own
Transmission power and the interference user equipment i.e. transmission power of remote user equipment UE2 distributed matched with it very
It is worth research.
It is current that there are the ten kinds of different transmission modes (Transmission Mode:TM) for limiting and being used for LTE system.This
Ten kinds of transmission mode differences are specific antenna mapping structure and also distinguish used for demodulating (corresponding cell
Specific ginseng ON signal or demodulated reference signal (DM-RS)) it is which kind of reference signal and how channel is obtained by terminal
Status information CSI and it is fed back to network side.DM-RS is sometimes referred to as the specific reference signal of user equipment, is intended to
It is in the transmission mode of the also referred to as DM-RS based on transmission mode TM for carrying out channel estimation by terminal so as to subsequent
The coherent demodulation of physical down link sharing channel PDSCH when 7 to 10.
In document " 3GPP 36.213, " 3rd generation partnership project；technical
specification group radio access network；evolved universal terrestrial radio
access(e-utra)；The demodulation reference based on transmission mode TM is described among physical layer procedures " "
Signal DM-RS.If the specific reference signal of user equipment appears on corresponding PDSCH mapped PRB, user
Equipment can assume that the ENERGY E PRE of each resource element of PDSCH and each resource element of the specific reference signal of user equipment
The ratio of the ENERGY E PRE of element the quantity of transport layer is less than or equal to two when be 0dB and be for other situations-
3dB (among transmission mode 9 and 10).Therefore, in most cases (in addition to working as transmission among transmission mode 9 and 10
Layer quantity be greater than two when) user equipment (UE) demodulated reference signal, that is, DM-RS power that is, user equipment it is specific
The power of reference signal is equal to its PDSCH power.Therefore, the knowing about its DM-RS sequence with instruction is obtained from base station eNB
Know, then user equipment can be able to know the power of its PDSCH channel.
However, the user equipment of pairing uses the phase on identical resource element RE when multi-user is laminated and transmits
Same space layer pre-coding matrix or identical transmission diversity.The user equipment matched is on identical resource element RE
Different demodulated reference signals can be also able to use using identical demodulated reference signal sequence with the transmission power distributed
Sequence.How to be set by the decoding of instruction and corresponding DM-RS sequence from base station eNB to obtain proximal end/victim user
Standby and the acquisition distal end/interference user equipment at near-end user equipment power allocation information is not by existing 3GPP standard
Standardized, this by decode first and eliminate thereafter interference user equipment signal bring difficulty and for after proximal end/
The data band that its own is decoded at victim user equipment carrys out difficulty.
Summary of the invention
In order to overcome technical problem described in background section above i.e. the prior art the shortcomings that, invention of the invention
People propose how in the case where the DM-RS based on transmission mode by base station eNB come proximally user equipment (UE) come indicated work
The method of rate distribution information.
Based on above-mentioned consideration, present applicant proposes one kind to be laminated transmission (Multiuser Superposition in multi-user
Transmission, MUST) system base station in be used to indicate the power of the transmission mode based on demodulated reference signal (DM-RS)
Distribute the method for information, one kind is based on demodulation for obtaining in the first user equipment that transmission (MUST) system is laminated in multi-user
A kind of transmission (MUST) system being laminated in multi-user in the method for the power allocation information of the transmission mode of reference signal (DM-RS)
Base station in be used to indicate the transmission mode based on demodulated reference signal (DM-RS) power allocation information device and one kind
For obtaining the biography based on demodulated reference signal (DM-RS) in the first user equipment that transmission (MUST) system is laminated in multi-user
The device of the power allocation information of defeated mode.
One kind is proposed according to the first aspect of the invention to be used in the base station that transmission (MUST) system is laminated in multi-user
Transmission is laminated in the method for indicating the power allocation information of the transmission mode based on demodulated reference signal (DM-RS), the multi-user
System includes base station, the first user equipment and second user equipment, and the base station is by first user equipment and described
Transmission is laminated to carry out multi-user in second user device pairing, and first user equipment is that the near-end user of the base station is set
Standby, the second user equipment is the remote user equipment of the base station, and the method includes in the base station:
Obtain the first demodulated reference signal sequence and the second user equipment institute used in first user equipment
The the second demodulated reference signal sequence used；
Judge whether the first demodulated reference signal sequence and the second demodulated reference signal sequence are consistent；And
Power associated with power allocation information is obtained is sent to first user equipment based on above-mentioned judging result
Distribution instruction.
Among one embodiment according to the present invention, when judging result is the first demodulated reference signal sequence and institute
State the second demodulated reference signal sequence it is consistent when, transmission power of the power distribution instruction comprising first user equipment and
Power offset value between the transmission power of the second user equipment.
Among one embodiment according to the present invention, the power distribution instruction also includes cell identifier.
Among one embodiment according to the present invention, when judging result is the first demodulated reference signal sequence and institute
State the second demodulated reference signal sequence it is inconsistent when, power distribution instruction includes used in first user equipment the
Second demodulated reference signal sequence used in the first identifier symbol of one demodulated reference signal sequence and the second user equipment
Second identifier symbol to distinguish different demodulation reference letters used in first user equipment and the second user equipment
Number sequence.
Among one embodiment according to the present invention, the power distribution instruction also refers to comprising radio network temporary identifier
Show symbol.
Among one embodiment according to the present invention, the power distribution associated with power allocation information is obtained refers to
Show and institute is sent to by high-level signaling or the down link control information on physical downlink control channel (PDCCH)
State the first user equipment.
One kind is proposed according to the second aspect of the invention to set in the first user that transmission (MUST) system is laminated in multi-user
Method in standby for obtaining the power allocation information of the transmission mode based on demodulated reference signal (DM-RS), the multi-user
It includes base station, the first user equipment and second user equipment that Transmission system, which is laminated, and the base station sets first user
Transmission is laminated to carry out multi-user in the standby and described second user device pairing, and first user equipment is the proximal end of the base station
User equipment, the second user equipment are the remote user equipments of the base station, and the method includes in first user
At equipment:
Power distribution instruction associated with power allocation information is obtained is received from the base station；
The first solution used in first user equipment is determined according to content included in power distribution instruction
It adjusts the second demodulated reference signal sequence used in reference signal sequence and the second user equipment and distributes to described the
Second transmission power of the first transmission power of one user equipment and the second user equipment；And
Referred to according to the first and second demodulated reference signals sequence and first and second transmission power to decode
To the physical down link sharing channel data of first user equipment.
Among one embodiment according to the present invention, when the first demodulated reference signal sequence and second demodulation
Reference signal sequence is consistent with each other and power distribution instruction in the transmission power comprising first user equipment and institute
When stating the power offset value between the transmission power of second user equipment, the first user equipment decoding the first demodulation ginseng
Examine the transmission power of signal sequence and/or the second demodulated reference signal sequence to obtain as first user equipment and
The demodulated reference signal power of the sum of the transmission power of the second user equipment and be based on the demodulated reference signal power
The transmission power of first user equipment and the transmitting function of the second user equipment are calculated with the power offset value
Rate.
Among one embodiment according to the present invention, when the first demodulated reference signal sequence and second demodulation
Reference signal sequence is mutually internally inconsistent and power distribution instruction in comprising for distinguishing first user equipment and institute
State the first demodulation ginseng used in the first user equipment of demodulated reference signal sequence different used in second user equipment
Examine the first identifier symbol of signal sequence and the second mark of the second demodulated reference signal sequence used in the second user equipment
When knowing symbol, first user equipment:
It is accorded with according to the second identifier to decode the second demodulated reference signal sequence to obtain distributing to described second
Second transmission power of user equipment；
Channel is estimated according to the second demodulated reference signal sequence decoded and second transmission power to decode
The signal of the second user equipment；
Institute is decoded after second transmission power is eliminated among the signal received by first user equipment
The first demodulated reference signal sequence of the first user equipment is stated to obtain first transmitting of first user equipment
Power；
The second demodulated reference signal sequence is eliminated according to first transmission power to join first demodulation
It examines the interference of signal sequence and thus estimates the channel, so that the physical down link for decoding first user equipment is total
Enjoy channel data.
Among one embodiment according to the present invention, first user equipment is by high-level signaling or under physics
Down link control information on Uplink Control Channel (PDCCH) obtains related to power allocation information is obtained from the base station
The power distribution instruction of connection.
One kind is proposed according to the third aspect of the invention we to be used in the base station that transmission (MUST) system is laminated in multi-user
Indicate the device of the power allocation information of the transmission mode based on demodulated reference signal (DM-RS), transmission is laminated in the multi-user
System includes base station, the first user equipment and second user equipment, and the base station is by first user equipment and described
Transmission is laminated to carry out multi-user in second user device pairing, and first user equipment is that the near-end user of the base station is set
Standby, the second user equipment is the remote user equipment of the base station, and described device includes:
Acquiring unit obtains the first demodulated reference signal sequence used in first user equipment and described the
Second demodulated reference signal sequence used in two user equipmenies；
Judging unit judges that the first demodulated reference signal sequence is with the second demodulated reference signal sequence
It is no consistent；And
Transmission unit is sent to first user equipment based on above-mentioned judging result and obtains power allocation information
Associated power distribution instruction.
One kind is proposed according to the fourth aspect of the invention to set in the first user that transmission (MUST) system is laminated in multi-user
For obtaining the device of the power allocation information of the transmission mode based on demodulated reference signal (DM-RS), the multi-user in standby
It includes base station, the first user equipment and second user equipment that Transmission system, which is laminated, and the base station sets first user
Transmission is laminated to carry out multi-user in the standby and described second user device pairing, and first user equipment is the proximal end of the base station
User equipment, the second user equipment are the remote user equipments of the base station, and described device includes:
Receiving unit receives power distribution instruction associated with power allocation information is obtained from the base station；
Determination unit determines the first user equipment institute according to content included in power distribution instruction
Second demodulated reference signal sequence used in the first demodulated reference signal sequence and the second user equipment used and
Distribute to the first transmission power of first user equipment and the second transmission power of the second user equipment；And
Decoding unit, according to the first and second demodulated reference signals sequence and first and second transmitting
Power is directed toward the physical down link sharing channel data of first user equipment to decode.
The protection scope of scheme according to the present invention will be limited by appended claims, the technology of this field
Personnel are formed by technical solution without departing from design of the invention and each fall within by being combined, modifying to different features
Among protection scope of the present invention.Technical solution according to the present invention is further described below with reference to attached drawing.
Detailed description of the invention
It, will be more preferable geographical after the description below with reference to a specific embodiment of the invention given by following drawings
The solution present invention, and other objects of the present invention, details, features and advantages will become apparent.In the accompanying drawings:
Fig. 1 shows the schematic diagram of the case where interfering with each other between the UE matched in MUST system a kind of；
Fig. 2 shows according to an embodiment of the invention to be used in the base station that transmission MUST system is laminated in multi-user
Indicate the flow chart 200 of the method for the power allocation information of the transmission mode based on demodulated reference signal DM-RS；And
Fig. 3 shows the first user according to an embodiment of the invention that transmission MUST system is laminated in multi-user and sets
For obtaining the flow chart 300 of the method for the power allocation information of the transmission mode based on demodulated reference signal DM-RS in standby.
Run through different diagrams in the figure, same or similar appended drawing reference indicates the same or similar device (module)
Or step.
Specific embodiment
In the following detailed description of the preferred embodiment, reference is constituted to the appended attached drawing of present invention a part.Institute
Attached attached drawing, which has been illustrated by way of example, can be realized specific embodiment.Exemplary embodiment is not intended to
Exhaustive all embodiments according to the present invention.It is appreciated that without departing from the scope of the present invention, can use other
Embodiment can also carry out the modification of structure or logic.Therefore, it is below specific descriptions and it is unrestricted, and this
The range of invention is defined by the claims appended hereto.
In MUST system, proximal end UE should decode the data of distally directed UE first, then from the transmission received
The data for removing distal end UE finally decode the data for being directed toward oneself from remaining transmission again.
Fig. 1 shows the schematic diagram of the case where interfering with each other between the UE matched in MUST system a kind of, and the figure is
It is described in detail in the background technology part of specification of the invention, therefore details are not described herein.
Fig. 2 shows according to an embodiment of the invention to be used in the base station that transmission MUST system is laminated in multi-user
Indicate the flow chart 200 of the method for the power allocation information of the transmission mode based on demodulated reference signal DM-RS.It can be with from figure
Find out that one kind is used to indicate the biography based on demodulated reference signal (DM-RS) in the base station that transmission (MUST) system is laminated in multi-user
The method 200 of the power allocation information of defeated mode, it includes base station, the first user equipment and the second use that Transmission system, which is laminated, in multi-user
Family equipment, and transmission, the first user is laminated to carry out multi-user in the first user equipment and second user device pairing by base station
Equipment is the near-end user equipment of base station, and second user equipment is the remote user equipment of base station, and method is included in base station:
Firstly, the letter of the first demodulation reference used in the first user equipment will be obtained among method and step 210 as base station
Second demodulated reference signal sequence used in number sequence and second user equipment；
Then, the first demodulated reference signal sequence and the second demodulation reference will be judged among method and step 220 by base station
Whether signal sequence is consistent；And
Finally, will be sent and be obtained to the first user equipment based on above-mentioned judging result among method and step 230 from base station
Obtain the associated power distribution instruction of power allocation information.
More specifically, the first above-mentioned user equipment and second user equipment are able to use identical demodulated reference signal
Sequence or different demodulated reference signal sequences.Among one embodiment according to the present invention, when judging result is first
When demodulated reference signal sequence is consistent with the second demodulated reference signal sequence, power distribution instruction includes the hair of the first user equipment
Penetrate the power offset value between power and the transmission power of second user equipment.In addition, in one embodiment according to the present invention
Among, power distribution instruction can also include cell identifier.
In contrast, among one embodiment according to the present invention, when judging result is the first demodulated reference signal
When sequence and the second demodulated reference signal sequence are inconsistent, power distribution instruction includes the first solution used in the first user equipment
Adjust the first identifier symbol of reference signal sequence with the second mark of the second demodulated reference signal sequence used in second user equipment
Symbol is known to distinguish demodulated reference signal sequence different used in the first user equipment and second user equipment.In addition, according to
Among one embodiment of the present of invention, power distribution instruction also includes radio network temporary identifier indicator.
It will be understood by those of skill in the art that above-mentioned power distribution associated with power allocation information is obtained indicates
It can be sent to the first above-mentioned user equipment in several ways, for example, among one embodiment according to the present invention, with
The associated power distribution instruction of power allocation information is obtained by high-level signaling or in physical downlink control channel
(PDCCH) down link control information on and be sent to the first user equipment.
Fig. 3 shows the first user according to an embodiment of the invention that transmission MUST system is laminated in multi-user and sets
For obtaining the flow chart 300 of the method for the power allocation information of the transmission mode based on demodulated reference signal DM-RS in standby.From
It can be seen that being believed for obtaining based on demodulation reference in the first user equipment that transmission (MUST) system is laminated in multi-user in figure
The method 300 of the power allocation information of the transmission mode of number (DM-RS), multi-user are laminated Transmission system and include base station, first use
Family equipment and second user equipment, and base station by the first user equipment and second user device pairing to carry out multi-user's stacking
Transmission, the first user equipment is the near-end user equipment of base station, and second user equipment is the remote user equipment of base station, method packet
It includes at the first user equipment:
Power point associated with power allocation information is obtained is received from base station first among first method step 310
With instruction；
Then among the second method step 320 according to power distribution indicate included in content determine that the first user sets
Second demodulated reference signal sequence used in standby used first demodulated reference signal sequence and second user equipment and
Distribute to the first transmission power of the first user equipment and the second transmission power of second user equipment；And
Finally according to the first and second demodulated reference signal sequences and first and second among third method step 330
Transmission power is directed toward the physical down link sharing channel data of the first user equipment to decode.
More specifically, the first above-mentioned user equipment and second user equipment are able to use identical demodulated reference signal
Sequence or different demodulated reference signal sequences.Among one embodiment according to the present invention, when the first demodulation reference is believed
Number sequence and the second demodulated reference signal sequence is consistent with each other and power distribution instruction in include the first user equipment transmitting
When power offset value between power and the transmission power of second user equipment, the first user equipment decodes the first demodulation reference letter
Number transmission power and second user equipment of sequence and/or the second demodulated reference signal sequence to obtain as the first user equipment
The sum of transmission power demodulated reference signal power and be calculated based on demodulated reference signal power and power offset value
The transmission power of first user equipment and the transmission power of second user equipment.
In contrast, among one embodiment according to the present invention, when the first demodulated reference signal sequence and second
Demodulated reference signal sequence is mutually internally inconsistent and power distribution instruction in comprising being used for distinguishing the first user equipment and second
First demodulated reference signal sequence used in first user equipment of different demodulated reference signal sequences used in the equipment of family
When the second identifier symbol of the second demodulated reference signal sequence used in the first identifier symbol and second user equipment of column, first is used
Family equipment:
The second demodulated reference signal sequence is decoded according to second identifier symbol to obtain distributing to the of second user equipment
Two transmission powers；
Channel is estimated according to the second demodulated reference signal sequence decoded and the second transmission power to decode second
The signal of user equipment；
The first user of decoding sets after second transmission power is eliminated among the signal received by the first user equipment
The first standby demodulated reference signal sequence is to obtain the first transmission power of the first user equipment；
The second demodulated reference signal sequence is eliminated according to the first transmission power for the first demodulated reference signal sequence
It interferes and thus estimates channel, to decode the physical down link sharing channel data of the first user equipment.
It will be understood by those of skill in the art that above-mentioned power distribution associated with power allocation information is obtained indicates
It can be sent to the first above-mentioned user equipment in several ways, for example, among one embodiment according to the present invention, the
One user equipment by high-level signaling or down link control information on physical downlink control channel (PDCCH) from
Base station obtains power distribution associated with power allocation information is obtained and indicates.
In addition, the invention also provides the corresponding devices for implementing the above method.One kind is proposed according to the present invention to exist
The function that the transmission mode based on demodulated reference signal (DM-RS) is used to indicate in the base station of transmission (MUST) system is laminated in multi-user
Rate distributes the device of information, and it includes base station, the first user equipment and second user equipment that Transmission system, which is laminated, in multi-user, and base
It stands and transmission is laminated to carry out multi-user in the first user equipment and second user device pairing, the first user equipment is the close of base station
End user device, second user equipment are the remote user equipments of base station, which includes:
Acquiring unit, obtains the first demodulated reference signal sequence used in the first user equipment and second user is set
Standby used second demodulated reference signal sequence；
Judging unit judges whether the first demodulated reference signal sequence and the second demodulated reference signal sequence are consistent；With
And
Transmission unit is related to power allocation information is obtained to the transmission of the first user equipment based on above-mentioned judging result
The power distribution of connection indicates.
It is proposed according to the present invention to a kind of be used in the first user equipment that transmission (MUST) system is laminated in multi-user
The device of the power allocation information of the transmission mode based on demodulated reference signal (DM-RS) is obtained, Transmission system is laminated in multi-user
Including base station, the first user equipment and second user equipment, and base station is by the first user equipment and second user device pairing
Transmission is laminated to carry out multi-user, the first user equipment is the near-end user equipment of base station, and second user equipment is the remote of base station
End user device, the device include:
Receiving unit receives power distribution instruction associated with power allocation information is obtained from base station；
Determination unit, according to power distribution indicate included in content determine used in the first user equipment
Second demodulated reference signal sequence used in one demodulated reference signal sequence and second user equipment and distribute to the first use
First transmission power of family equipment and the second transmission power of second user equipment；And
Decoding unit is solved according to the first and second demodulated reference signal sequences and the first and second transmission powers
Code is directed toward the physical down link sharing channel data of the first user equipment.
Those of ordinary skill in the art should also understand that, the various illustrative logics described in conjunction with embodiments herein
The combination of electronic hardware, computer software or both may be implemented into block, module, circuit and algorithm steps.In order to understand earth's surface
Show this interchangeability between hardware and software, various illustrative components, block, module, circuit and step are enclosed above
General description has been carried out around its function.Hardware is implemented as this function and is also implemented as software, is depended on specific
Using and apply design constraint over the whole system.Those skilled in the art can be directed to every kind of specific application, to become
Logical mode realizes described function, and still, this realization decision 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 invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
How from the point of view of, the present embodiments are to be considered as illustrative and not restrictive.In addition, it will be evident that one word of " comprising " not
Exclude other elements and steps, and wording "one" be not excluded for plural number.The multiple element stated in device claim can also
To be implemented by one element.The first, the second equal words are used to indicate names, and are not indicated any particular order.
The above description of the disclosure is for can be realized any those of ordinary skill of this field or using the present invention.It is right
For those of ordinary skill in the art, the various modifications of the disclosure be will be apparent from, and generality defined herein
Principle can also be applied to other deformations in the case where without deviating from the spirit and scope of the disclosed invention.Therefore, the present invention is simultaneously
It is not limited to example and design as described herein, but it is consistent with the widest scope of principle disclosed herein and novel features.
Claims (12)
1. a kind of be used to indicate in the base station that transmission (MUST) system is laminated in multi-user based on demodulated reference signal (DM-RS)
The method of the power allocation information of transmission mode, it includes base station, the first user equipment and that Transmission system, which is laminated, in the multi-user
Two user equipmenies, and first user equipment and the second user device pairing are carried out multi-user's layer by the base station
Folded transmission, first user equipment is the near-end user equipment of the base station, and the second user equipment is the base station
Remote user equipment, the method includes in the base station:
It obtains the first demodulated reference signal sequence used in first user equipment and the second user equipment is used
The second demodulated reference signal sequence；
Judge whether the first demodulated reference signal sequence and the second demodulated reference signal sequence are consistent；And
Power distribution associated with power allocation information is obtained is sent to first user equipment based on above-mentioned judging result
Instruction, so that first user equipment content according to included in power distribution instruction determines first user
Second demodulated reference signal sequence used in first demodulated reference signal sequence and the second user equipment used in equipment
Arrange and distribute to the first transmission power of first user equipment and the second transmission power of the second user equipment.
2. according to the method described in claim 1, wherein, when judging result be the first demodulated reference signal sequence with it is described
When second demodulated reference signal sequence is consistent, transmission power of the power distribution instruction comprising first user equipment and institute
State the power offset value between the transmission power of second user equipment.
3. according to the method described in claim 2, wherein, the power distribution instruction also includes cell identifier.
4. according to the method described in claim 1, wherein, when judging result be the first demodulated reference signal sequence with it is described
When second demodulated reference signal sequence is inconsistent, the power distribution instruction is comprising first used in first user equipment
Second demodulated reference signal sequence used in the first identifier symbol of demodulated reference signal sequence and the second user equipment
Second identifier is accorded with to distinguish demodulated reference signal different used in first user equipment and the second user equipment
Sequence.
5. according to the method described in claim 4, wherein, the power distribution instruction is also indicated comprising radio network temporary identifier
Symbol.
6. according to the method described in claim 1, wherein, the power distribution associated with power allocation information is obtained indicates
It is sent to by high-level signaling or the down link control information on physical downlink control channel (PDCCH) described
First user equipment.
7. a kind of be based on demodulated reference signal for obtaining in the first user equipment that transmission (MUST) system is laminated in multi-user
(DM-RS) method of the power allocation information of transmission mode, it includes base station, the first user that Transmission system, which is laminated, in the multi-user
Equipment and second user equipment, and the base station by first user equipment and the second user device pairing to carry out
Transmission is laminated in multi-user, and first user equipment is the near-end user equipment of the base station, and the second user equipment is institute
The remote user equipment for stating base station, the method includes at first user equipment:
Power distribution instruction associated with power allocation information is obtained is received from the base station；
The first demodulation ginseng used in first user equipment is determined according to content included in power distribution instruction
It examines the second demodulated reference signal sequence used in signal sequence and the second user equipment and distributes to described first and use
Second transmission power of the first transmission power of family equipment and the second user equipment；And
It is decoded according to the first and second demodulated reference signals sequence and first and second transmission power and is directed toward institute
State the physical down link sharing channel data of the first user equipment.
8. according to the method described in claim 7, wherein, when the first demodulated reference signal sequence and the second demodulation ginseng
Examine that signal sequence is consistent with each other and the transmission power comprising first user equipment and described in power distribution instruction
When power offset value between the transmission power of second user equipment, first user equipment decodes first demodulation reference
Signal sequence and/or the second demodulated reference signal sequence are to obtain transmission power and institute as first user equipment
State the demodulated reference signal power of the sum of transmission power of second user equipment and based on the demodulated reference signal power and
The transmission power of first user equipment and the transmission power of the second user equipment is calculated in the power offset value.
9. according to the method described in claim 7, wherein, when the first demodulated reference signal sequence and the second demodulation ginseng
Examine that signal sequence is mutually internally inconsistent and in power distribution instruction comprising for distinguishing first user equipment and described
First demodulation reference used in first user equipment of different demodulated reference signal sequences used in second user equipment
The second identifier of second demodulated reference signal sequence used in the first identifier symbol of signal sequence and the second user equipment
Fu Shi, first user equipment:
It is accorded with according to the second identifier to decode the second demodulated reference signal sequence to obtain distributing to the second user
Second transmission power of equipment；
It is described to decode to estimate channel according to the second demodulated reference signal sequence decoded and second transmission power
The signal of second user equipment；
Described the is decoded after second transmission power is eliminated among the signal received by first user equipment
The first demodulated reference signal sequence of one user equipment is to obtain first transmission power of first user equipment；
The second demodulated reference signal sequence is eliminated according to first transmission power to believe first demodulation reference
Thus the interference of number sequence simultaneously estimates the channel, the physical down link to decode first user equipment shared letter
Track data.
10. according to the method described in claim 7, wherein, first user equipment is by high-level signaling or under physics
Down link control information on Uplink Control Channel (PDCCH) obtains related to power allocation information is obtained from the base station
The power distribution instruction of connection.
11. a kind of be used to indicate in the base station that transmission (MUST) system is laminated in multi-user based on demodulated reference signal (DM-RS)
Transmission mode power allocation information device, the multi-user be laminated Transmission system include base station, the first user equipment and
Second user equipment, and the base station by first user equipment and the second user device pairing to carry out multi-user
Stacking transmission, first user equipment is the near-end user equipment of the base station, and the second user equipment is the base station
Remote user equipment, described device includes:
Acquiring unit obtains the first demodulated reference signal sequence used in first user equipment and described second and uses
Second demodulated reference signal sequence used in the equipment of family；
Judging unit, judge the first demodulated reference signal sequence and the second demodulated reference signal sequence whether one
It causes；And
Transmission unit is related to power allocation information is obtained to first user equipment transmission based on above-mentioned judging result
The power distribution of connection indicates, so that first user equipment content according to included in power distribution instruction determines
Second solution used in first demodulated reference signal sequence and the second user equipment used in first user equipment
Adjust reference signal sequence and distribute to first user equipment the first transmission power and the second user equipment the
Two transmission powers.
12. a kind of be based on demodulated reference signal for obtaining in the first user equipment that transmission (MUST) system is laminated in multi-user
(DM-RS) device of the power allocation information of transmission mode, it includes base station, the first user that Transmission system, which is laminated, in the multi-user
Equipment and second user equipment, and the base station by first user equipment and the second user device pairing to carry out
Transmission is laminated in multi-user, and first user equipment is the near-end user equipment of the base station, and the second user equipment is institute
The remote user equipment of base station is stated, described device includes:
Receiving unit receives power distribution instruction associated with power allocation information is obtained from the base station；
Determination unit determines that first user equipment is used according to content included in power distribution instruction
The first demodulated reference signal sequence and the second user equipment used in the second demodulated reference signal sequence and distribution
Second transmission power of the first transmission power and the second user equipment to first user equipment；And
Decoding unit, according to the first and second demodulated reference signals sequence and first and second transmission power
To decode the physical down link sharing channel data for being directed toward first user equipment.
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 CN106304302A (en) | 2017-01-04 |
| CN106304302B true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3923484A1 (en) * | 2017-08-11 | 2021-12-15 | FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. | Concepts for transmitting data to one or more users |
| CN112152765B (en) * | 2019-06-28 | 2024-02-02 | 华为技术有限公司 | Reference signal transmission method and communication device |
Citations (2)
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5864199B2 (en) * | 2011-05-20 | 2016-02-17 | 株式会社Ｎｔｔドコモ | Receiving device, transmitting device, and wireless 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 (2)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201717588A (en) | 2017-05-16 |
| CN106304302A (en) | 2017-01-04 |
| WO2016185273A1 (en) | 2016-11-24 |
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