CN108111275A - The collocation method and device of reference signal information - Google Patents
The collocation method and device of reference signal information Download PDFInfo
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- CN108111275A CN108111275A CN201710687676.6A CN201710687676A CN108111275A CN 108111275 A CN108111275 A CN 108111275A CN 201710687676 A CN201710687676 A CN 201710687676A CN 108111275 A CN108111275 A CN 108111275A
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- H—ELECTRICITY
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- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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Abstract
The present invention provides a kind of collocation method and device of reference signal information, wherein, this method includes：First information set A and the second information aggregate B is obtained, the first information set A and second information aggregate B are respectively divided into N number of subset, and associate first information set subset Ai and the second information aggregate subset Bi；Wherein, the element in first information set A is used to indicate at least one of：Modulation demodulation system, redundancy version information；Element in second information aggregate B is used to indicate demodulated reference signal port configuration information, wherein, the demodulated reference signal port of the element instruction of set B belongs to a code word.Using above-mentioned technical proposal, obtain first information set and the second information aggregate, two information aggregate associations are sent to the communication node of opposite end, solves the problems, such as to notify that DMRS port configuration information expense is big in correlation technique, significantly reduces DMRS port configuration information expense.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of collocation method and device of reference signal information.
Background technology
In the related art, for demodulated reference signal, if configuration is in the time-domain symbol where demodulated reference signal
Send corresponding data, then the power of demodulated reference signal cannot enhance, and additional substantial amounts of signaling is needed to carry out indicated number
According to whether in the time-domain symbol where demodulated reference signal having sent data.And if always not configuration data in demodulation reference
It is sent in time-domain symbol where signal, reduces signaling consumption, be but likely to decrease efficiency of transmission.
At present, newly eat dishes without rice or wine (New Radio, referred to as NR) physical-layer techniques just in third generation partner program (3rd
Generation Partnership Project, referred to as 3GPP) RAN1 intimately discuss in.And flexible and efficient is always NR objects
It manages layer and designs pursued target.And physical layer reference signal pursues maximum flexibility and seems the trend of also becoming.This be by
It may be different in the demand of different application scenarios demodulated reference signals.
For the higher user of delay requirement, user's needs are inscribed receipts downlink data in a time slot and then feed back to base
It stands the signal of corresponding downlink data transmission correctness.That is, the downlink physical transfer resource of user is distributed in base station
With corresponding (correct/incorrect) feedbacks of the ACK/NACK whether correctly received by user in identical time slot.At this time in order to quick
Demodulation, demodulated reference signal will be positioned over position forward in time slot, and such user can detect demodulated reference signal quickly
For data demodulation.Fig. 1 is the DMRS schematic diagrames in data transmission in correlation technique, and such as Fig. 1 is shown, for some
User or some business, downlink data transmission and corresponding ACK/NACK are fed back in identical time slot, we can be referred to as
Self-contained time slot format (self-contained slot) can so substantially reduce the time delay of ACK/NACK feedbacks, so as to
Be conducive to timeliness and require high business transmission.In Fig. 1, which includes 14 OFDM symbols, and base station is accorded with by the first two
Number down control channel be scheduled to user's downlink data, and demodulated reference signal is positioned in the 3rd, 4 time-domain symbol,
User is after downlink data has been detected, feeding back ACK/NACK on last 2 symbols of the time slot.If user correctly has detected
Downstream data channel, then otherwise user feedback feeds back to base station NACK to base station ack.
Generally, in order to support this self-contained structure of time slot, it will be as far as possible for demodulating relevant reference signal design
Be conducive to fast demodulation, so as to fulfill ACK/NACK rapid feedbacks.For example demodulated reference signal is preferably placed in downlink data letter
In preceding several OFDM symbols in road, this time slot that is placed on is referred to as preposition demodulation by us by the demodulated reference signal of front position
Reference signal (front loaded DMRS).
For transmitting uplink data, due to there is the business such as V2V, D2D that may also need low time delay, preposition demodulated reference signal
It is also beneficial to fast demodulation and feedback.
And for the low user of delay requirement or business, ACK/NACK is fed back there is no need to too fast, at this time ACK/NACK
Feedback can several time slots more late than downstream data channel.The design of demodulated reference signal at this time is not limited to only preposition solution
Reference signal is adjusted, supplement demodulated reference signal can also be sent, to carry out Doppler's estimation.Fig. 2 is according in correlation technique
The schematic diagram of preposition demodulated reference signal and supplement demodulated reference signal, as shown in Fig. 2, DMRS is distributed in 4 time-domain symbols,
So be conducive to improve Doppler's estimation.
The problem of for notifying DMRS port configuration information expense big in correlation technique, there is presently no effective solution party
Case.
The content of the invention
An embodiment of the present invention provides a kind of collocation method and device of reference signal information, at least to solve correlation technique
Middle the problem of notifying DMRS port configuration information expense big.
According to one embodiment of present invention, a kind of collocation method of reference signal information is provided, the described method includes：
First information set A and the second information aggregate B is obtained, the first information set A and the second information aggregate B are drawn respectively
It is divided into N number of subset, and associates the first information set subset Ai and the second information aggregate subset Bi, wherein, the N is
Positive integer more than 1, the i are the natural numbers less than or equal to N since 1；Wherein, the element in first information set A is used for
Indicate at least one of：Modulation demodulation system, redundancy version information；Element in the second information aggregate B is used to indicate
Demodulated reference signal port configuration information, wherein, the demodulated reference signal port of the element instruction of the set B belongs to a code
Word.
Optionally, the subset Bi, Bj of second information aggregate are different, wherein, the i is not equal to j, and the i, j are
Since 1, the natural number less than or equal to N.
Optionally, in the demodulated reference signal port configuration information that the element of the Bi and Bj each indicates, there are following
It is characterized in one of under at least different：Scramble sequence, port sequence number, port number, if passed simultaneously with data transmission procedure
It is defeated, demodulated reference signal demodulated reference signal symbol numbers, time domain code.
Optionally, the subset Ai, Aj of the first information set are different, and wherein i is not equal to j, and the i, j are opened from 1
Begin, the natural number less than or equal to N.
Optionally, indicate that the element of second code word is different in the Ai, Aj.
Optionally, the information content for the element instruction that the Ai, Aj are included is identical, but element index is different.
Optionally, the method further includes：Obtain the 3rd information aggregate C and the 4th information aggregate D, association the 3rd letter
Breath set and the 4th information aggregate；Element in the 3rd information aggregate C is used to indicate one of following information：Modulatedemodulate
Tune mode, redundancy version information；Element in the 4th information aggregate D is used to indicate demodulated reference signal port with confidence
Breath, and, the demodulated reference signal port of the element instruction in the 4th information aggregate belongs to two code words.
Optionally, the 4th information aggregate D, compared with the subset of the second information aggregate B, at least element index is not
Together.
Optionally, a subset of first information set A is identical with the 3rd information aggregate C.
Optionally, X information aggregate and Y information set are associated, wherein, the X and Y are natural number, including：It is communicating
The first communication node of both sides notifies to belong to Y information to information of second communication node on the demodulated reference signal port
In the case of set, first communication node notifies second communication node on the modulation demodulation system and/or superfluous
Remaining version information must belong to the element in X information aggregate.
According to another embodiment of the invention, a kind of collocation method of DMRS port information is provided, which is characterized in that
Including：Preset one or more demodulated reference signal port set；It indicates to believe below the second communication node of opposite end by signaling
Breath：Whether the default occupied resource of demodulated reference signal port set is used to send data；Wherein, communicating pair agreement is non-
The resource that default demodulated reference signal port set is occupied cannot be used for sending data, and signaling instruction is not required described non-
Whether data are sent in default demodulated reference signal port set resource；Wherein, the non-default port set number is at least 2
It is a, and the demodulated reference signal port in same port set occupies identical running time-frequency resource.
Optionally, the power for limiting all demodulated reference signal ports is steady state value.
Optionally, different second communication nodes or cell preset different demodulated reference signal port sets.
Optionally, the non-default demodulated reference signal port set is configured by configuring the reference signal of zero energy.
According to another embodiment of the invention, a kind of collocation method of demodulated reference signal port information is additionally provided,
Including：Send joint notice；Wherein, the joint notice includes at least one following information：Believe demodulated reference signal port
The initial position of breath and data transmission；The maximum port number of demodulated reference signal and supplement demodulated reference signal symbol numbers.
Optionally, the set of the demodulated reference signal port information is determined by the initial position of the data of high level configuration.
Optionally, the supplement demodulated reference signal symbol numbers are more, the maximum port of the demodulated reference signal
Number is fewer.
According to another embodiment of the invention, a kind of collocation method of control signaling is provided, according in transmission data
The number N of code word determine at least one of parameter：The corresponding code block group number of one code word, the corresponding ACK/ of a code word
NACK feedback bits numbers, the corresponding new biography transmission of data indication bit number of a code word, wherein, the N is integer.
Optionally, for a parameter, the sum of corresponding parameter of all code words is X, the X be it is predefined or
High-level signaling configuration.
Optionally, for a parameter, predefined there are at least one following rules：Rule 1：The code word includes
The number of plies is more, and the parameter of the code word is bigger；Rule 2：The transmission block TB of the code word is bigger, the ginseng of the code word
Number is bigger；Rule 3：The modulation demodulation system of the code word is bigger, and the parameter of the code word is bigger；Rule 4：The code word
Feedback channel quality instruction CQI it is bigger, the parameter of the code word is bigger.
Optionally, for a parameter, the quotient of the X and N is not integer.
Optionally, for a parameter, in the case of at least there are two code words, for the big code of the parameter
Word, the parameter be equal to X divided by N and round up and/or, for the small code word of the parameter, the parameter is equal to X divided by N
And downward rounding.
Optionally, for a code word, the parameter is equal to the number of plies that the code word includes and is multiplied by X again divided by all code words
Total number of plies, then rounding again.
According to another embodiment of the invention, a kind of device of the notice of reference signal information is additionally provided, is applied to
First communication node, described device include：Acquisition module, for obtaining first information set A and the second information aggregate B, by institute
It states first information set A and the second information aggregate B is respectively divided into N number of subset, and associate the first information collection zygote
Collect Ai and the second information aggregate subset Bi, wherein, the N is greater than 1 positive integer, the i be since 1, less than etc.
In the natural number of N；Wherein, the element in first information set A is used to indicate at least one of：Modulation demodulation system, redundancy
Version information；Element in the second information aggregate B is used to indicate demodulated reference signal port configuration information, wherein, it is described
The demodulated reference signal port of the element instruction of subset Bi belongs to a code word；First sending module, for described first to be believed
Breath set A and the second information aggregate B is sent to the second communication node.
According to another embodiment of the invention, a kind of configuration device of demodulated reference signal port information is provided, it should
For the first communication node, including：Setup module, for presetting one or more demodulated reference signal port set；Second hair
Module is sent, the following information of the second communication node is indicated for passing through signaling：The default demodulated reference signal port set institute
Whether the resource of occupancy is used to send data；Wherein, first communication node is arranged non-default with second communication node
The resource occupied of demodulated reference signal port set cannot be used for sending data, and signaling instruction is not required described non-default
Demodulated reference signal port set resource on whether send data；Wherein, the non-default port set number is at least 2,
And the demodulated reference signal port in same port set occupies identical running time-frequency resource.
According to another embodiment of the invention, a kind of configuration device of demodulated reference signal port information is additionally provided,
Applied to the first communication node, including：3rd sending module, for sending joint notice to the second communication node；Wherein, it is described
Joint notice includes at least one following information：The initial position of demodulated reference signal port information and data transmission；Demodulation
The maximum port number of reference signal and supplement demodulated reference signal symbol numbers.
According to another embodiment of the invention, a kind of configuration device of control signaling is additionally provided, it is logical applied to first
Believe node, determining module, for determining at least one of parameter according to the number N for transmitting the code word in data：One code word
Corresponding code block group number, the corresponding ACK/NACK feedback bits number of a code word, the corresponding new biography transmission of data of a code word
Indication bit number, wherein, the N is integer.
According to another embodiment of the invention, a kind of storage medium is additionally provided, the storage medium includes storage
Program, wherein, described program performs the method described in above-mentioned any one of alternative embodiment when running.
According to another embodiment of the invention, a kind of processor is provided, the processor is used for operation program,
In, described program performs the method described in above-mentioned any one of alternative embodiment when running.
By the present invention, the first communication node obtains first information set A and the second information aggregate B, by the first information
Set A and second information aggregate B are respectively divided into N number of subset, and associate first information set subset Ai and second letter
Breath set subset Bi, wherein, the element in first information set A is used to indicate at least one of：Modulation demodulation system MCS,
Redundancy versions RV information；Element in second information aggregate B is used to indicate demodulated reference signal port configuration information, wherein,
The demodulated reference signal port of the element instruction of subset Bi belongs to a code word；First communication node is by the first information collection
It closes A and second information aggregate B is sent to the second communication node.Using above-mentioned technical proposal, by two information aggregate association hairs
It send to the communication node of opposite end, solves the problems, such as to notify that DMRS port configuration information expense is big in correlation technique, be greatly reduced
DMRS port configuration information expense.
Description of the drawings
Attached drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description does not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the DMRS schematic diagrames in data transmission in correlation technique；
Fig. 2 is the schematic diagram according to preposition demodulated reference signal in correlation technique and supplement demodulated reference signal；
Fig. 3 is a kind of collocation method flow chart of reference signal information according to embodiments of the present invention；
Fig. 4 is the schematic diagram one of DMRS types 2 in preferred embodiment 1 according to the present invention；
Fig. 5 is the schematic diagram two of DMRS types 2 in preferred embodiment 1 according to the present invention；
Fig. 6 is the schematic diagram one of DMRS Class1 in preferred embodiment 1 according to the present invention；
Fig. 7 is the schematic diagram two of DMRS Class1 in preferred embodiment 1 according to the present invention；
Fig. 8 is the base station configuration DMRS schematic symbol diagrams of preferred embodiment 2 according to the present invention；
Fig. 9 is the DMRS of the type 2 of preferred embodiment 4 according to the present invention and supplement reference signal schematic diagram；
Figure 10 is the schematic diagram of the limitation DMRS maximum port numbers of preferred embodiment 4 according to the present invention.
Specific embodiment
It should be noted that a kind of mobile communications network is provided in the embodiment of the present application (includes but not limited to 5G movements
Communication network), the network architecture of the network can include network side equipment (such as base station) and terminal.It provides in the present embodiment
A kind of information transferring method that can run in the above-mentioned network architecture is provided in the embodiment of the present application, it is necessary to explanation
The running environment of above- mentioned information transmission method is not limited to the above-mentioned network architecture.
The first communication node in present specification can be base station equipment, and the second communication node can be that end side is set
Standby, it is all terminal device to be not excluded for the first communication node and the second communication node certainly, and the two carries out D2D communications.
Embodiment one
A kind of configuration for the reference signal information for running on the above-mentioned network architecture is provided in the present embodiment, and Fig. 3 is root
According to a kind of collocation method flow chart of reference signal information of the embodiment of the present invention, as shown in figure 3, the flow includes following step
Suddenly：
Step S302 obtains first information set A and the second information aggregate B, by the first information set A and second letter
Breath set B is respectively divided into N number of subset, and associates first information set subset Ai and second information aggregate subset Bi,
In, which is greater than 1 positive integer, which is the natural number less than or equal to N since 1；
Step S304, wherein, the element in first information set A is used to indicate at least one of：Modulation demodulation system,
Redundancy version information；Element in second information aggregate B is used to indicate demodulated reference signal port configuration information, wherein, it should
The demodulated reference signal port of the element instruction of set B belongs to a code word.
By above-mentioned steps, using above-mentioned technical proposal, first information set and the second information aggregate are obtained, by two letters
Breath set associative is sent to the communication node of opposite end, solves and notifies DMRS port configuration information expense is big to ask in correlation technique
Topic, significantly reduces DMRS port configuration information expense.
Optionally, the executive agent of above-mentioned steps can be base station, terminal etc., but not limited to this.
Optionally, the subset Bi, Bj of second information aggregate are different, wherein, which is not equal to j, and the i, j are opened from 1
Begin, the natural number less than or equal to N.
Optionally, in the demodulated reference signal port configuration information that the element of the Bi and Bj each indicates, exist with down toward
It is characterized in one of under few different：Scramble sequence, port sequence number, port number, if with data transmission procedure simultaneous transmission,
Demodulated reference signal DMRS symbol numbers, time domain code.
Optionally, the subset Ai, Aj of the first information set are different, and wherein i is not equal to j, the i, j be all since 1, it is small
In the natural number equal to N.
Optionally, indicate that the element of second code word is different in the Ai, Aj.
Optionally, the information content for the element instruction that the Ai, Aj are included is identical, but element index is different.
Optionally, the first information set A and second information aggregate B are sent to second in first communication node to lead to
Before believing node, which obtains the 3rd information aggregate C and the 4th information aggregate D, associates the 3rd information aggregate
With the 4th information aggregate；Element in 3rd information aggregate C is used to indicate one of following information：MCS, RV information；This
Element in four information aggregate D is used to indicate demodulated reference signal port configuration information, and, the member in the 4th information aggregate
The demodulated reference signal port of element instruction belongs to two code words.
Optionally, the 4th information aggregate D, compared with the subset of second information aggregate B, element index is different.
Optionally, a subset of first information set A is identical with the 3rd information aggregate C.
Optionally, X information aggregate and Y information set are associated, wherein, the X and Y are natural number, including：This first
Communication node is notified in the case of belonging to Y information set on the element of the X information aggregate to second communication node, is somebody's turn to do
First communication node notifies second communication node on must belong to the element in X information aggregate in the Y information set.
You need to add is that described in the embodiment be the set of association two in present specification meanings, associate two subsets
Conjunction is also suitable above-mentioned correlating method.
According to another embodiment of the invention, a kind of collocation method of DMR port informations is additionally provided, this method includes
Following steps：
Step 1, the first communication node preset one or more demodulated reference signal port set；
Step 2, first communication node indicate the following information of the second communication node by signaling：The default demodulation ginseng
Examine whether the occupied resource of signal port group is used to send data；Wherein, first communication node and second communication node
Arrange the resource that non-default demodulated reference signal port set is occupied to cannot be used for sending data, and signaling instruction is not required to exist
Whether data are sent in the non-default demodulated reference signal port set resource；Wherein, the non-default port set number is minimum
It it is 2, and the demodulated reference signal port in same port set occupies identical running time-frequency resource.
Using above-mentioned technical proposal, the expense of DMRS port configuration information notice is saved, improves DMRS channel precisions.
Optionally, the power which limits all demodulated reference signal ports is steady state value.
Optionally, the second different communication nodes or cell preset different demodulated reference signal port sets.
Optionally, which configures the non-default demodulation reference by configuring the reference signal of zero energy
Signal port group.
According to another embodiment of the invention, a kind of collocation method of DMR port informations is additionally provided, should be included following
Step：
First communication node sends joint notice to the second communication node；Wherein, joint notice includes following information
At least one：The initial position of DMRS port information and data transmission；The maximum port number of DMRS and supplement DMRS symbols
Number.
Optionally, the set of the DMRS port information is determined by the initial position of the data of high level configuration.
Optionally, supplement DMRS symbol numbers are more, and the maximum port number of the DMRS is fewer.
According to another embodiment of the invention, a kind of collocation method of control signaling is provided, this method can be applied
In the first communication node, this method comprises the following steps：
Number N according to the code word in transmission data determines at least one of parameter：The corresponding code block group of one code word
Number, the corresponding ACK/NACK feedback bits number of a code word, the corresponding new biography transmission of data indication bit number of a code word,
Wherein, which is integer.
Using above-mentioned technical proposal, solve in correlation technique that control signaling expense is increased caused by code word dynamic change
Problem uses above-mentioned technical proposal, even if in the case of code word dynamic mapping, the expense of control signaling remains unchanged, and reduces
User detection complexity.
Optionally, for the parameter, the sum of corresponding parameter of all code words is X, which is predefined or high-rise
Signal deployment.
Optionally, for the parameter, predefined there are at least one following rules：Rule 1：The code word includes the number of plies
More, the parameter of the code word is bigger；Rule 2：The transmission block TB of the code word is bigger, and the parameter of the code word is bigger；Rule 3：
The modulation demodulation system MCS of the code word is bigger, and the parameter of the code word is bigger；Rule 4：The feedback channel quality instruction of the code word
CQI is bigger, and the parameter of the code word is bigger.
Optionally, for the parameter, the quotient of the X and N is not integer.
Optionally, for the parameter, the code word of the first preset value is more than for the parameter, the parameter is equal to X divided by N
And round up and/or, for the parameter be less than the second preset value code word, the parameter be equal to X divided by N and downward rounding.
Optionally, for a code word, the parameter be equal to the number of plies that the code word includes be multiplied by X again divided by all code words it is total
The number of plies, then rounding again.
According to another embodiment of the invention, a kind of Notification Method of reference signal information is additionally provided, this method should
For the second communication node, this method comprises the following steps：
Second communication node receives the first information set A and the second information aggregate B that the first communication node is sent, wherein,
The first information set A and second information aggregate B are respectively divided into N number of subset by first communication node, and associate this
One information aggregate subset Ai and second information aggregate subset Bi, wherein, which is greater than 1 positive integer, the i be since 1,
Natural number less than or equal to N；Wherein, the element in first information set A is used to indicate at least one of：Modulation demodulation system
MCS, RV information；Element in second information aggregate B is used to indicate demodulated reference signal port configuration information, wherein, the son
The demodulated reference signal port of the element instruction of collection Bi belongs to a code word.
Optionally, this method further includes：Second communication node receives the 3rd information collection of first communication node transmission
C and the 4th information aggregate D is closed, wherein, which associates the 3rd information aggregate and the 4th information aggregate.
Optionally, the element in the 3rd information aggregate is used to indicate one of following information：MCS, RV information；4th letter
Element in breath set is used to indicate demodulated reference signal port configuration information, and, the element in the 4th information aggregate refers to
The demodulated reference signal port shown belongs to two code words.
Optionally, the X information aggregate and the Y information set are associated,：First communication node notify to this second
In the case that communication node belongs to Y information set on the element of the X information aggregate, first communication node notify this
Two communication nodes in the Y information set on must belong to the element in X information aggregate；Wherein, the X and Y is natural number.
According to another embodiment of the invention, a kind of collocation method of DMR port informations is provided, this method can answer
For the second communication node, this method comprises the following steps：
Second communication node receives the following information that the first communication node is sent：The default demodulation ginseng of first communication node
Examine whether the occupied resource of signal port group is used to send data；Wherein, first communication node and second communication node
Arrange the resource that non-default demodulated reference signal port set is occupied to cannot be used for sending data, and signaling instruction is not required to exist
Whether data are sent in the non-default demodulated reference signal port set resource；Wherein, the non-default port set number is minimum
It it is 2, and the demodulated reference signal port in same port set occupies identical running time-frequency resource.
According to another embodiment of the invention, provide a kind of collocation method of DMR port informations, this method include with
Lower step：
Second communication node receives the joint notice that the first communication node is sent；Wherein, joint notice includes following
At least one information：The initial position of DMRS port information and data transmission；The maximum port number of DMRS and supplement DMRS symbols
Number number.
It is described in detail with reference to the preferred embodiment of the present invention.
Preferred embodiment 1：The scheme of DMRS types 2
At present for the design of reference signal, one kind is based on FD-OCC (Frequency domain orthogonal
Covering code) DMRS patterns, we term it DMRS types 2, it can effectively be supported in a DMRS symbol
Maximum 6 ports (as shown in Figure 4) support maximum 12 ports (as shown in Figure 5) in 2 DMRS symbols.
Fig. 4 is the schematic diagram one of DMRS types 2 in preferred embodiment 1 according to the present invention, as shown in figure 4, a RB
In (Resource block), abscissa is time domain, and ordinate is frequency domain.6 DMRS ports are divided into 3 DMRS port groups, end
Mouth group #0 includes port p0, p1.In port set #0, port p0, p1 are mapped in by OCC codes point on identical running time-frequency resource,
Such as the OCC codes of port p0 are [1 1], and the OCC codes of port p1 are [1-1], in a RB, son that port p0, p1 map
Carrier wave includes subcarrier #4, #5；#10, #11.Similarly, port set #1 includes port p2, p3.In port set #1, port p2, p3
It is mapped in by OCC codes point on identical running time-frequency resource, such as the OCC codes of port p1 are [1 1], the OCC codes of port p3
For [1-1].Port set #2 includes port p4, p5.In port set #2, port p4, p5 are mapped in identical by OCC codes point
On running time-frequency resource, such as the OCC codes of port p4 are [1 1], and the OCC codes of port p5 are [1-1].This 6 DMRS ports can
A user is distributed to, i.e. SU-MIMO (single-user MIMO) can also distribute to multiple users, i.e. MU-MIMO
(multi-user MIMO).Although the pattern in Fig. 4 can support maximum 6 DMRS ports, real base station is used in scheduling
6 DMRS ports must be not necessarily distributed during family to user.Such as community user it is fewer when, and user need port sum
When fewer, base station only needs to send one or two of port.
In order to reach most flexible scheduling, when needing DMRS port number fewer, base station only needs to distribute to a small amount of end
For mouth to user, the resource shared by remaining port can send data to user.And when the DMRS port number of needs is more, base
It stands, multiple ports must be distributed to user, DMRS port is shared that resource just seldom or cannot be used for transmitting data at this time
User.Such as when the DMRS port number of one user #0 of base station scheduling is 1, and the port distributed is p#0, if without it
His user does multi-user transmission with the user, and base station can give user's transmission number p#2, p#3, p#4, the occupied REs of p#5 on
According to base station needs DCI signalings to indicate respectively user at port set #1 (including p#2, p#3) at this time, and port set #2 is (including p#4, p#
5) whether there are data sending or reception on.And if base station by DMRS port p2, p#3, p#4, p#5 is allocated to UE#1, this
Data transmission cannot be used in Shi Suoyou DMRS ports.
However, this flexible port instruction notice brings huge physical layer dynamic signaling expense.Base station is being distributed
After user #0 port p#0, it is also necessary to be indicated to the occupied resources of the user's port set #1 whether for data transmission or
It sends, while whether also needs to be indicated to the occupied resources of the user's port set #2 for data transmission or transmission.This is
Since SU-MIMO and MU-MIMO are switching at runtime, it is possible to which other users have only taken up the resource of port set #1, and also having can
Energy other users occupy the resource of port set #1, #2 simultaneously.
In addition, when other users do not occupy the resource of port set #1, #2, if the occupied moneys of port set #1, #2
Source is distributed on user #0 transmission data, then port p2, p3, the power on p4, p5, which can not just borrow, gives port p#0 and p#
1, the DMRS of UE#0 is just without power enhancing (Power boosting) at this time.Due to DMRS in the DMRS patterns of this FD-OCC
Each port density it is very low, power enhancing it is particularly important, be not Power boosting on channel estimation influence it is very big.
A kind of method for solving the problems, such as high signaling consumption and power enhancing, comprises the following steps：
(1) one or more demodulated reference signal port set is preset, the first communication node needs signaling instruction second logical
Whether letter these port sets of node occupied resource is for sending data, and the resource that other non-default port sets are occupied
It cannot be used for sending data, and be not required whether signaling instruction sends data in these non-default port set resources.Wherein,
Non-default port set number is at least 2.Demodulated signal port in same port set occupies identical running time-frequency resource.
For UE#0, it can preset and be possibly used for sending data on demodulated reference signal port set #2, then for other
Non-default demodulated reference signal port set #0, #1, even if no other users do multiuser MIMO with UE#0, base station will not
Scheduling UE#0 sends in the resource where port set #0, #1 or receives data, and there is no need to signaling instructions certainly.In this way,
It is, for example, p0 if the DMRS port of UE#0 distribution is on port set #0, the power this guarantees port set #1 can be lent
On port set #0, i.e. 3dB power boosting, the characteristic of channel estimation just has guarantee.Base station is not required DCI to move simultaneously
State signals whether UE#0 on port set #1 has data transmission.Number may be sent out due to default on DMRS port group #2
According to base station also needs to whether dynamic signaling instruction UE#0 has data transmission on DMRS port group #2.
If that UE#0 distribution is port p#0, p#1, and the data transmission also without UE#0 on port set #2 (is held at this time
Mouth group #2 may be occupied by other users), then for UE#0, the power on port set #1, #2 can lend port
Group #0, the power on such port set #0 are exactly original 3 times, i.e. 4.77dB.Although power can reach 3 times at this time,
Power on port set #0 for the interference of adjacent cell is also increased, and the power of DMRS is caused to have variation, i.e., sometimes
3dB is waited, sometimes 4.77dB.Also can have an impact to demodulated complex degree.(2) so further method, one or more is preset
A demodulated reference signal port set, the first communication node need signaling to indicate the occupied money of these port sets of the second communication node
Whether source is for sending data, and the resource that other non-default port sets are occupied cannot be used for sending data, and need not
Whether signaling instruction sends data in these non-default port set resources.Wherein, non-default port set number is at least 2
It is a.Demodulated signal port in same port set occupies identical running time-frequency resource.Also, limit demodulated reference signal port
Power is steady state value N.Specifically, for demodulated reference signal type 2, a demodulated reference signal group is preset, and is limited
The power of DMRS port is 3dB.DMRS power as described herein also refers to DMRS port and for the power ratio between data Layer
Value.If enhance without power, then the power between DMRS port and corresponding data Layer is exactly 1:1, i.e. 0dB.
(3) method of (1) (2) is based on, further method is it is characterized in that, the different default solution of user or cell
Adjust reference signal port set different.Such as the UE#0 in cell #0, default DMRS port group is #1, and for cell #1
In UE#1, default DMRS port group is #2, the advantage of doing so is that can be with interference randomization.
(4) further method, one or more default demodulated reference signal port set refer to predefined or logical
Signaling is crossed to configure DMRS port group.It is predefined to refer to signal, provide in a standard, be base station and
The information that user's acquiescence is known.Refer to that base station is by high-level signaling and/or dynamic signaling configuration described by signal deployment
DMRS port group.Such as base station is end by the DMRS port group that high-level signaling or DCI dynamic signalings are allocated to user preset
Mouth group #1.Selectable, base station can configure a variety of default DMRS port group configurations by high-level signaling, for example base station passes through height
The default DMRS port group configuration of layer signal deployment 2, port set configuration #0 include port set #1, and port set configuration #1 includes port
Group #2, then base station with dynamic DCI signalings from 2 port sets configure in selection one notify to user.The high-rise letter
Order can be RRC signaling either MAC signalings or RRC signaling combination MAC signaling.
(5) selectable, base station configures the reference signal of zero energy to configure non-default demodulated reference signal port set, that
Unless being exactly default port set outside default port set in all of the port group.Wherein the reference signal bandwidth of zero energy with
The resource size for distributing to user is identical.For example, the money that the resource that the reference signal of zero energy occupies is occupied with port set #0, #1
Source is identical, then remaining port set #2 is exactly default port set.
Fig. 5 is the schematic diagram two of DMRS types 2 in preferred embodiment 1 according to the present invention, as shown in figure 5,2 DMRS symbols
When, maximum can support 12 DMRS ports.12 DMRS ports are divided into 3 DMRS port groups, and port set #0 includes port p0,
p1,p6,p7；Port set #1 includes port p2, p3, p8, p9；Port set #2 includes port p4, p5, p10, p11.In port set #0
In, port p0, p1, p6, p7 occupy identical running time-frequency resource, and time domain or frequency domain OCC codes simply is different.Such as p0, p1
It is distinguished by the OCC codes on frequency domain, and time domain OCC codes are identical, i.e. the frequency domain OCC codes of p0 are [1 1], the frequency of port p1
Domain OCC codes are [1-1], and the OCC codes [1 1] that p0, p1 are used in time domain；And p6, p7 also depend on the OCC codes on frequency domain
Mutually distinguish, and time domain OCC codes are identical, i.e. the frequency domain OCC codes of p6 are [1 1], the frequency domain OCC codes of port p7 be [1-
1], the OCC codes [1-1] that p6, p7 are used in time domain.4 ports similarly in other port sets are same, holding
In mouth group #1, the different frequency domain OCC codes of p2, p3, and identical time domain OCC codes are used, the different frequency domain OCC codes of p8, p9,
Also using identical time domain OCC codes, but the time domain OCC codes that use of p2, p3 and p8, p9 difference.In port set #2, p4, p5
With different frequency domain OCC codes, and identical time domain OCC codes are used, the different frequency domain OCC codes of p10, p11, also using identical
Time domain OCC codes, but the time domain OCC codes that use of p4, p5 and p10, p11 are different.
Based on the preposition reference signal of 2 symbols, a kind of method for solving the problems, such as high signaling consumption and power enhancing is special
Sign is, presets one or more demodulated reference signal port set, and the first communication node needs signaling to indicate the second communication section
Whether the occupied resource of these port sets of point is for sending data, and the resource that other non-default port sets are occupied cannot
For sending data, and it is not required whether signaling instruction sends data in these non-default port set resources.Wherein, it is non-pre-
If port set number be at least 2.Demodulated signal port in same port set occupies identical running time-frequency resource.Specifically
, for the DMRS of type 2, since the number of port set is 3, so the specific method is, preset 1 demodulation ginseng
Signal port group is examined, the first communication node needs whether the signaling instruction occupied resource of these port sets of the second communication node is used
In transmission data, and the resource that other non-default port sets are occupied cannot be used for sending data, and signaling instruction is not required
Whether data are sent in these non-default port set resources.Further method, the power for limiting DMRS port are 3dB.
Further method it is characterized in that, the default demodulated reference signal port set of different users or cell not
Together.
Further method presets one or more demodulated reference signal port set and refers to predefined or pass through letter
It makes configuring DMRS port group.It is predefined to refer to signal, it provides in a standard, is base station and user
Give tacit consent to the information known.Refer to that base station passes through high-level signaling and/or dynamic signaling configuration the DMRS ends by signal deployment
Mouth group.Such as base station is port set #2 by the DMRS port group that high-level signaling or DCI dynamic signalings are allocated to user preset.
Selectable, base station can configure a variety of default DMRS port group configurations by high-level signaling, for example base station passes through high-level signaling
The default DMRS port group configuration of configuration 2, port set configuration #0 include port set #1, and port set configuration #1 includes port set #2,
Then base station with dynamic DCI signalings from 2 port sets configure in selection one notify to user.
Further method, base station configure the reference signal of zero energy to realize non-default demodulated reference signal port set.
The reference signal bandwidth of wherein zero energy is identical with the resource size for distributing to user.
Port p0-p11 as described herein is integer, and is not necessarily continuous integer.For example p0-p11 actually can generation
Table port 1000-1011, it is also possible to it is 1000,1003,1001,1004,1002,1005,1006,1009,1007 successively,
1010,1008,1011。
Here is the accompanying Examples of preferred embodiment 1：
Preferred embodiment 1a：The scheme of DMRS Class1
One kind is based on the DMRS patterns of IFDM (Interleaved Frequency domain multiplexing), I
Be referred to as DMRS Class1, it can effectively support maximum 4 ports (as shown in Figure 6) in a DMRS symbol, 2
Maximum 8 ports (as shown in Figure 7) are supported during a DMRS symbols.
Fig. 6 is the schematic diagram one of DMRS Class1 in preferred embodiment 1 according to the present invention, in figure 6, the DMRS ends
Mouth is divided into 2 port sets, and port set #0 includes p0, p2, and p0, and p2 occupies identical running time-frequency resource, is distinguished with different codes, example
Such as distinguished with different CS (cyclic shift) sequences.Port set #1 includes p1, p3, and p1, and p3 occupies identical time-frequency money
Source is distinguished with different codes.
Fig. 7 is the schematic diagram two of DMRS Class1 in preferred embodiment 1 according to the present invention, and in the figure 7,8 ports are divided into 2
A port set, port set #0 include p0, p2, p4, p6, and p0, p2, p4, and p6 occupies identical running time-frequency resource, and p0 and p2 are in frequency domain
Upper code is different, such as p0 CS sequences 0, p2 CS sequences 1；The code of p4, p6 on frequency domain is also different.And p0, p2 exist
OCC codes in time domain are identical, and the OCC codes of p4, p6 in time domain are also identical, and and OCC codes in time domain of p0, p2 not
Together.Similarly, port set #1 includes port p1, p3, p5, p7, and p1, and CSs of the p3 on frequency domain is different, the OCC in time domain
Code is identical；CS on frequency domain of p5, p7 is different, and the OCC codes in time domain are identical, and and code in time domain of p1, p3
It is different.
In short, all of the port in a port group is mapped on identical running time-frequency resource, by different time domains or
Frequency domain code is mutually distinguished.
For DMRS Class1, also for above-mentioned method.
Preferred embodiment 2：
Such as Fig. 5, shown in Fig. 7, in 2 DMRS symbols, running time-frequency resource phase that the DMRS port in a port group occupies
Together, each DMRS port can occupy 2 time-domain symbols.If base station indicates that some DMRS port group cannot be used for data biography
It is defeated, then the REs (resource elements) in occupied 2 time-domain symbols of the DMRS port group cannot be used for counting
According to transmission.As described in Figure 5, the port that UE#0 is distributed in base station is p0, p1, p6, p7, that is, dispatches UE#0 as 4 layers of transmission.And at this time
Base station is assigned with port p4 to a UE#1, and UE#0 and UE#1 do multi-user transmission.UE#0 cannot be where UE#1 at this time
The transmitted over resources data that DMRS port group occupies.It cannot be used for transmission data on the running time-frequency resource where p4, wherein
Running time-frequency resource shared by p4 occupies 2 time-domain symbols.
Although this design is simple, resource utilization is not high.This is because base station is configuring 1 DMRS symbol still
It, can be different for the DMRS of different user configuration during 2 DMRS symbols.Like this, Fig. 8 is to be preferably implemented according to the present invention
The base station configuration DMRS schematic symbol diagrams of example 2, as shown in figure 8, base station is allocated to two DMRS symbols of UE#0, and distribute to UE#0
Port be p0, p1, p6, p7, that is, dispatch UE#0 as 4 layers of transmission.And base station is allocated to mono- DMRS symbol of UE#1 at this time, and divide
Port p4, p5 are matched somebody with somebody.Meanwhile base station is allocated to two DMRS symbols of UE#2, and the port distributed is p2, p3, p8, p9.UE#0
And UE#1, UE#2 do multi-user transmission.
So for UE#1, only DMRS is sent on first DMRS symbol.Second DMRS on corresponding subcarrier
Vacant resource can also be used to transmit data on symbol.I.e. on time-domain symbol #3, sub-carrier resources #0, #1, #6, #7 can be with
For sending data.This is because if the channel condition of UE#1 is preferable, there is no need to be retransmited on second DMRS symbol
DMRS.Just need base station that can be used for transmission the position of data using signaling to indicate user on DMRS symbols at this time.
For being configured with the user of 2 DMRS symbols, base station needs to indicate the subset of resource shared by some DMRS port groups
Whether data transmission is used for.Division of resources shared by DMRS port group is occupied this respectively into 2 subsets, subset #0 and subset #1
The resource that the resource and second DMRS symbol that first DMRS symbol of DMRS port group occupies occupy.Such as shared by port set #2
Resource includes (2,0) (3,0) (2,1) (3,1), (2,6) (3,6) (2,7) (3,7), wherein (x, y) represents time domain in PRB
Symbol sequence number and subcarrier sequence number.Port set #2 occupy resource in subset #0 include resource (2,0) (2,1) (2,6) (2,
7)；And the subset #1 in the resource that port set #2 is occupied includes resource (3,0) (3,1) (3,6) (3,7).At this point for UE#0, base
Station needs to notify whether subset of resources #0 in port set #2 and subset #1 can be used for data transmission respectively using signaling.
Meanwhile the user for being configured with 1 DMRS symbol, base station need to indicate to accord with except the DMRS for distributing to the user
Whether the resource group on the other DMRS symbols of extra can transmit data.
Table 1 is the form that user is sent data to according to the subset of the instruction demodulated reference signal of preferred embodiment 2, such as table
Shown in 1, base station can indicate whether each subset on demodulated reference signal group #2 is used to send out using different indication
Data are sent to a user.
Table 1
Method in 1 in conjunction with the embodiments presets one or more demodulated reference signal port set, the first communication node
Whether the occupied resource of signaling instruction these port sets of the second communication node is needed for sending data, and other are non-default
The resource that port set is occupied cannot be used for sending data, and signaling instruction is not required in these non-default port set resources
Whether data are sent.Wherein, non-default port set number is at least 2.Demodulated signal port in same port set accounts for
With identical running time-frequency resource.Further, and indicate whether the subset of default port set resource is used to send data.
It is worth noting that, if the resource of demodulated reference signal is used for transmission the demodulated reference signal of this user, then
These resources cannot transmit data, even if the corresponding demodulated reference signal port set of these resources is default.
Preferred embodiment 3：
In order to reach enough flexibilities it can be seen from Fig. 4-Fig. 7, standard needs to support demodulated reference signal type
1 and demodulated reference signal type 2, and each demodulated reference signal type needs to support the situation of 1 DMRS and the feelings of 2 DMRS
Condition.In addition, if data and DMRS can be sent on same symbol, base station also needs to be indicated to some DMRS ports of user
Whether the resource in group is used to sending or receiving data.It can so cause the signaling consumption in DCI especially big.
In LTE, for the data just passed, DMRS port number either layers numbers be 2 or it is above when just need 2
A code word CW (code word, referred to as CW), i.e. 2 transmission blocks (TB) transmit data, and DMRS port information notifies 36.212
Shown in middle form 5.3.3.1.5C-1 or 5.3.3.1.5C-2.And for each transmission block, each CW is given in base station in DCI
1 MCS/RV/NDI (modulation coding scheme/redundancy versions/new data indicator) instructions field (5+1+2=8bits) is all configured,
As follows, MCS needs 5bits, NDI that 1bit, RV is needed to need 2bits.
In addition,for transport block 1:
-Modulation and coding scheme–5 bits as defined in section 7.1.7 of
[3]
-New data indicator–1bit
-Redundancy version–2bits
In addition,for transport block 2:
-Modulation and coding scheme–5bits as defined in section 7.1.7 of[3]
-New data indicator–1bit
-Redundancy version–2bits
If there was only 1 CW transmission in practice, i.e. second CW does not transmit (disable falls), then second
In MCS/RV/NDI instructions field, IMCS=0, and the value of redundancy versions instruction is 1, it is as follows in 36.213.
-In DCI formats 2,2A,2B,2C and 2D a transport block is disabled if
IMCS=0and if rvidx=1otherwise the transport block is enabled.
In NR, base station can be semi-statically configured by high-level signaling to CW number of user's maximum according to the situation of user.
If a user can only at most support 4 layer datas to transmit, then 1 CW is just configured, because for the data just passed in NR,
2 CW are just needed when DMRS port number or layers numbers are more than 4.And if user has demand, it can support 5 DMRS
Port or more than, base station is 2 with regard to semi-static CW number for being allocated to the user's maximum.It is worth noting that, even if base station
The CW number that user is allocated to by high-level signaling is 2, and reality can also send a CW it is necessary to see what is needed in total when sending
Whether port number is more than 4.But as long as base station is 2, MCS/RV/NDI by the CW number that high-level signaling is allocated to user
It will can support the MCS to 2 TB, RV, the instruction of NDI information.
If as LTE, each CW needs 1 MCS/RV/NDI instructions field M bits, then different user is due to most
Big CW number it is different, it is necessary to MCS/RV/NDI instructions field expense it is just different.If user has been semi-statically configured 1
CW, MCS/RV/NDI instructions field just need M bits；And if user has been semi-statically configured 2 CW, MCS/RV/NDI instructions
Domain just needs 2M bits.In this way, under the configuring condition of 2 CW, 2 CW are equivalent to absolute coding, i.e., each CW is required for
An independent MCS/RV/NDI domain, at this time if the number of plies for being transferred to user is less than or equal to N, N=4, it is only necessary to 1 CW, i.e. CW#
0, CW#1 deactivations, can be indicated as LTE using a special indicating bit in the corresponding MCS/RV domains of CW#1 at this time
CW#1 is deactivated, as shown in table 3, when the indicating bit for the MCS/RV that base station indicates in the corresponding MCS/RV domains of CW#1
(Indicator) for 1, i.e. when MCS=0, RV=1, CW#1 deactivations are represented.
Table 2 is the allocation list one according to preferred embodiment 3, is configured with 2 CW, and the MCS/RV domains of 2 CW as shown in table 2
Absolute coding.
Table 2
If as LTE, the port information of DMRS is notified for different CW, as described in Table 2.In order to simplify point
It analyses, assumes there was only 1 DMRS symbol in table 2, and data will not be transmitted on DMRS symbols.
Table 3 is the DMRS Information Notification Tables according to preferred embodiment 3, and as shown in table 3, high level is configured with 2 CW.
Table 3
As shown in upper table 3, high level is configured with 2 CW, when there was only 1 CW activation in practice, it is necessary to 0-23,24 in total
State index value notifies the port information of DMRS, because needing when port number is smaller to consider multi-subscriber dispatching, and notifies not
Same scrambling ID, port sequence number.And when having 3 CW activation in practice, DMRS port number is at least 5 at this time, need not generally examine
Consider multi-subscriber dispatching, it is only necessary to 0-2, totally 3 state instructions notify the port information of DMRS.This DMRS port configuration information
Method, it is necessary to maximum state index value demand during according to 1 CW activation and 2 CW activation, is needed in such DCI by that is, 24
5bits is arranged to notify DMRS port information.Expense in DCI increased compared to LTE.In addition if this table considers to move
State notifies different DMRS symbol numbers, and whether data are transmitted in DMRS resources, and DCI expenses can bigger.
Association first information set subset Ai and the second information aggregate subset Bi refers to, when the first communication node is notified to the
When two communication nodes belong to the element in Bi on the information of DMRS port, the first communication node notifies to close to the second communication node
It must belong to the element in Ai in the information of MCS/RV.Since the demodulated reference signal port that the element of Bi indicates belongs to a code
Word, then the information such as MCS/RV of second code word in corresponding A i are not just used actually, i.e. only 1 code word activation.Value
It is to be noted that first information set may be served only for the state of instruction MCS/RV, it is also possible to be used to indicate MCS, RV and other
The state of information consolidation, such as MCS, RV, NDI.
Similarly, association the 3rd information aggregate subset C and the 4th information aggregate D refers to, when the first communication node is notified to the
When two communication nodes belong to the element in D on the information of DMRS port, the first communication node notifies to close to the second communication node
It must belong to the element in C in the information of MCS/RV.
So the first information either the 3rd information just refer to information on MCS/RV and second or the 4th information be exactly
Refer on DMRS port information.
First information set and the 3rd information aggregate are used for the instruction of the information such as MCS, RV, for example are used to indicate MCS, RV,
One or more in NDI.And situation of first information set when being used to indicate the activation of only 1 code word (CW), and the 3rd
Information aggregate is used to indicate the situation that 2 code words all activate.Second information aggregate and the 4th information aggregate are used to indicate demodulation ginseng
Examine signal (DMRS) port information.Wherein the second information aggregate is used to indicate the situation during activation of only 1 code word (CW), and the
Four information aggregates are used to indicate the situation that 2 code words all activate.Element in each set can be regarded as in information form
A row element, but the situation of different code words activation must be limited to.So 1 activation can regard a form as.
So the subset of different A includes the information such as different MCS/RV.As shown in table 4, subset A1 is similar to LTE.
In A1, the MCS/RV states of CW#1 must be a special state, represent that CW#1 is not activated, and represent A1 association B1, B1 such as tables 5
It is shown.Wherein B1 is a part for DMRS port information aggregate.In table each element by index (indicator) and indicate
Content forms (being exactly MCS/RV for first information set, be exactly DMRS port, the number of plies etc. for the second information aggregate), i.e., every
A element just corresponds to the row at the place of an index in form.In other words, after relevant subset A1, B1, if user's distribution
MCS/RV status informations indicating bit be the element in A1, then DMRS port information state indicating bit is the element in B1, user
It can be seen that CW#0 activate, CW#1 deactivate, and learn CW#0 MCS/RV information and B1 in the CW#0 distribute DMRS port letter
Breath.In similar LTE, subset A1, the MCS/RV states of CW#1 can only be special mode bit, represent that CW#1 is deactivated, CW#0's
MCS/RV states include all possible MCS/RV states, without what specially treated.As shown in table 5, compared to table 3, in B1
When state only protects 1 CW, a part (the state indicating bit 0-15 i.e. in table 3) for DMRS port information state indicating bit,
Do not include all.
Another subset A2 association B2 of A simultaneously, and A2 is different from A1.
If the information such as MCS/RV, as LTE, 2 CW carry out independent instruction, then the MCS/RV states of CW#1 must in A2
It must different and A1.The information such as MCS/RV in A2 and A1 on first code word are identical at this time, do not distinguish.And the area of A2 and A1
It is not that A1 and A2 indicates that the element of second code word is different.
A2 can be as shown in table 6a, and the MCS/RV states of CW#1 are another special states, represent that CW#1 is not activated, and
This special state is different from the state of CW#1 in A1, represents A2 association B2, as shown in table 7.After relevant subset A2, B2, if one
The MCS/RV status informations indicating bit of a user's distribution is the element in A2, then DMRS port information state indicating bit is in B2
Element, user it can be seen that CW#0 activate, CW#1 deactivate, and learn CW#0 MCS/RV information and B2 in the CW#0 distribute
DMRS port information.In subset A2, the MCS/RV states of CW#1 are special mode bits, represent that CW#1 is deactivated, CW#0's
MCS/RV states include all possible MCS/RV states, without what specially treated.As shown in table 7, compared to table 3, in B2
When state includes 1 CW, a part (the state indicating bit 16-23 i.e. in table 3) for DMRS port information state indicating bit does not have
Have including whole.Assuming that B is only divided into 2 subsets, then the element in B1, B2 just contains all DMRS port indication informations,
The information content of table 3 is divided into 2 subsets, and the index of B2 renumbers, and such B1, B2 just only need 4bits
Indicate because B1, B2 so be all within 16.So the element of second codeword information is used to indicate in A1 and A2
It is different.
Selectable, A2 as shown in 6b, i.e. in A2, can represent that the MCS/RV indicating bits of CW#1 are except CW#1 in A1
Other outer all indicating bits of MCS/RV indicating bits.Can be except the MCS/RV information shapes of CW#1 in Table A 1 as shown in table 8b
The different any instruction of state, i.e. A2 are identical with the 3rd information aggregate C.And for the port information of DMRS, the state that is included in B2
For position index necessarily different from the state position index in D, i.e. the index value of the DMRS port information included in B2 cannot be in D
Comprising, i.e., cannot be 0,1,2.B2 is as shown in table 8 at this time, and useful indicating bit includes middle 8-15.Further, included in B2
DMRS port information be different from the DMRS port information of each mode bit instruction in B1.In fact, value 8-15 are represented in B2
DMRS port information be in table 3 indicating bit 16-23 indicate DMRS port information.So when A2 is identical with C, element in B2
Index necessarily different from the index in D.At this time since A2 is identical with C, when user receives the instruction on information such as MCS/RV
During position, in order to distinguish A2 or C, i.e., in order to distinguish 1 code word activation or 2 code word activation, user is firstly the need of root
Judge according to the indicating bit on DMRS port information of base station instruction, that is, judge that the indication information index on DMRS is to belong to
B2 still falls within D, if belonging to B2, then the information of corresponding MCS/RV means that only 1 CW activation.Certain of D and B at this time
The element index of a little collection is different, i.e. the index of D and B2 must be different.Some subsets of A are identical with C simultaneously, i.e. A2 and C phases
Together.
Wherein C and D represents the information of MCS/RV and the information of DMRS port during 2 code word activation of instruction respectively.For C,
If as LTE, that is, representing the information of the MCS/RV of CW#1 cannot indicate that CW#1 is not activated, i.e., in addition to the special indicating bit
Other all indicating bits, then C is possible to be equal to A2, and C is also as shown in table 6B at this time.And D is totally different from the subset of A,
Because D represents the port information of 2 CW, for the data of initial transmission, port number is generally always more than 4.And the subset of A by
In the situation for representing 1 CW activation, for initial transmission data, the port of DMRS is no more than 4.
Two subsets of A are only listed in this example, A can be divided into multiple subsets in practice.The subset of different A corresponds to different
The subset of B.In a standard, the subset of multiple A may be write in a table, and different indexes may belong to different finally
Subset.Such as shown in table 2, if the mode bit of the CW#1 of base station instruction is 1, i.e., indicate that the information bit of MCS/RV belongs at this time
A1, and if the mode bit of the CW#1 of base station instruction is 0, i.e., indicate that the information bit of MCS/RV belongs to A2 at this time, it is assumed that A2
As shown in table 6a.Similarly, the subset of multiple B may be write in a table, as shown in table 3, by 1 code word and 2 code words
DMRS port information has been write in a table.
Table 4 is the subset A1 tables according to preferred embodiment 3, as shown in table 4：
Table 4
Table 5 is the subset B1 tables according to preferred embodiment 3, as shown in table 5：
Table 5
Table 6a is the subset A2 tables according to preferred embodiment 3.
Table 6a
Table 6b is the form according to the subset A2 or C of preferred embodiment 3.
Table 6b
Table 7 is the subset B2 tables according to preferred embodiment.
Table 7
Table 8 is second of form table according to the subset B2 of preferred embodiment 3.
Table 8
State position index depicted herein is exactly indicator values or value values in table in fact.In actual schedule,
Base station can notify different state index with several bits.For example the value values of DMRS port information are notified with 4bits.
So based on above-mentioned method, give a user 2 CW if base station is semi-statically configured, then base station can use 2M in DCI
Bits+4bits notifies the information of MCS/RV and DMRS port respectively.If in the MCS/RV information of base station instruction, CW#1 pair
The MCS/RV answered is indicator 1, is A1 as described in Table 4, then the port information of DMRS must it is corresponding be B1.
Assuming that assume that if the corresponding MCS/RV of CW#1 that A2 is equal to the instruction of C. base stations are not indicator 1, i.e., first
The collection of information is not A1, then can only be A2 or C,.At this time if the value of the DMRS port information of base station instruction is 0,1,
Some value in 2, then represent that CW#1 is active, then the second information collection is D.So D must correspond to C, then the first letter
Breath collection is C.And if the corresponding MCS/RV of CW#1 of base station instruction are not indicator 1, i.e. the collection of the first information is not A1,
So can only be A2 or C.The value of the DMRS port information of base station instruction at this time is not some value in 0,1,2, then table
Show that CW#1 is in unactivated state.Then the second information subset is B2.The necessary corresponding As 2 of so B2, then first information subset is A2.
Assuming that A2 is not equal to A1, not equal to C, then the MCS/RV mode bits that user is indicated by base station are assured that
The aggregate type of DMRS port information is B1, B2 or C.
Here is the accompanying Examples of preferred embodiment 3：
Preferred embodiment 3a：
For 2 code words (CW), due to separated instruction MCS, RV and/or NDI may there are inappropriate place, such as
The combination of some MCS and RV can not possibly exist, such as during MCS=15, RV can not possibly be equal to 2.So it is compiled for 2 code word joints
Code MCS/RV and/or NDI can be beneficial to, and for some otiose MCS, RV, NDI combination can not have to include MCS, RV, NDI
United information form in.Only MCS, RV combined codings is assumed below.As shown in table 9, it is assumed that useful when 1 CW is activated
MCS, RV combination have P kind mode bits, for representing the different MCS of CW#0, RV information.And when 2 CW are activated, it is necessary to very much
A mode bit, such as T mode bit represent different CW, different MCS, the information of RV information, at this time a mode bit instruction
Include the MCS of 2 CW, RV information.
Table 9 is the combined coding table one of preferred embodiment 3a, as table 9 shows the MCS/RV of 1 and 2 CW of combined coding
Instruction state
Table 9
It, can be by above-mentioned notice in order to reduce the number of DMRS port information instruction state position when a CW is activated
MCS/RV information forms increase some mode bits.Then, all mode bits of first information set are divided into 2 subsets, A1, A2
As shown in form 10, increase from P to 2P-1 mode bit as A2, A2 is actually the repetition of A1, and content is identical, simply member
The index of element is different.The value of general P can be less than or equal to 2^M.It can be seen that the number of A1, A2 element is identical, and refer to
The content shown is identical, and instruction index is different.That is the MCS/RV information that nth elements indicate in nth elements and A2 in A1
Identical, n is less than the nonnegative integer of P.
A1 is associated with B1, the information of MCS/RV and DMRS port information state position when being used to indicate a code word activation；A2
It is associated with B2, the information of MCS/RV and DMRS port information state position, B1 are incomplete with B2 when being used to indicate a code word activation
It is identical.C is associated with D.The information of MCS/RV and DMRS port information state position when being used to indicate 2 code word activation.
I.e. when the first communication node notifies to belong to A1 to the element index of the second communication node first information, the first communication
Node notifies that the elementary state position to second the second information of communication node belongs to B1；When the first communication node is notified to the second communication
When the element index of the node first information belongs to A2, the first communication node is notified to the element shape of second the second information of communication node
State position should belong to B2；When the first communication node notifies to belong to C to the element index of the second communication node first information, first
Communication node notifies that the elementary state position to second the second information of communication node should belong to D.
It, i.e., can so increasing P value in first information set element much larger than P since the value of T is usually square of P
It can will not cause the increase of expense.
Certain first information set can also be divided into more subsets to correspond to more the second different information aggregate subsets,
Expense can be so further reduced.Here just it is not repeated.
Table 10 is the combined coding table two according to preferred embodiment 3a, has gone out 1 and 2 CW of combined coding as shown in table 10
MCS/RV instruction states, and be divided into 3 subsets.
Table 10
Preferred embodiment 3b：
With reference to the scheme in above-described embodiment, corresponding MCS/RV instruction states position is divided into N number of subset when being by a CW,
The DMRS port information instruction state position needed when simultaneously by a CW is also classified into N number of subset, is then associated.Carry out
When DMRS port information instruction state position divides, it can be divided according to following rule.That is the second information aggregate subset B1
It is different on the feature of at least one of with the element of the B2 demodulated reference signal port information indicated
Scramble sequence, port sequence number, port number, if with data transmission simultaneously, DMRS symbol numbers, time domain code.
Scramble sequence refers to different scrambling ID, similar to n different in LTESCID, such as the element instruction included in B1
Scramble sequence ID be all nSCID=0, and the scramble sequence ID of the element instruction included in B2 is nSCID=1.It is selectable,
It is less than or equal to the element of L only for DMRS port number, is included in the scramble sequence ID and B2 of the element instruction included in B1
Element instruction scramble sequence ID it is different.For example all instruction DMRS port numbers are less than or equal to 2 mode bit in L=2, i.e. B1
The scramble sequence ID=0 of instruction, and the scramble sequence ID that all mode bits of the instruction DMRS port number less than or equal to 2 indicate in B2
=1.
Port sequence number difference refers to that the DMRS port sequence number of the element instruction included in B1 is indicated with the element included in B2
DMRS port sequence number it is different.For example the DMRS port sequence number of the element instruction included in B1 is both less than equal to 4, and included in B2
Element instruction DMRS port sequence number be both greater than 4.
Port number difference refers to that the DMRS port number of the element instruction included in B1 is indicated with the element included in B2
DMRS port number it is different.For example the DMRS port number of the element instruction included in B1 is both less than equal to 4, and included in B2
Element instruction DMRS port number be both greater than 4.
DMRS symbol numbers refer to that the DMRS symbol numbers of the element instruction included in B1 are indicated with the element included in B2
DMRS symbol numbers it is different.For example the DMRS symbol numbers of the element instruction included in B1 are equal to 1, and the member included in B2
The DMRS symbol numbers of element instruction are equal to 2.
Time domain code used in DMRS port refers to, time domain code and B2 used in the DMRS port of the element instruction included in B1
In time domain code used in the port of element instruction that includes it is different.Such as used in the DMRS port of the element instruction included in B1
Time domain code is all OCC codes [1 1], and included in B2 element instruction DMRS port used in time domain code be all OCC codes [1-
1]。
Whether refer to simultaneously with data transmission, the DMRS of the element that is included in B1 instruction whether the shape with Simultaneous Transmission of Data
State is different from B2.For example the DMRS of the element instruction included in B1 will not be with Simultaneous Transmission of Data, and the element included in B2
The DMRS meetings of instruction and data transmission.
Preferred embodiment 4
According to Fig. 4-7, although these DMRS patterns can support multiple DMRS ports, such as Fig. 4, Fig. 5, Fig. 6, figure
7 DMRS patterns indicate respectively 6,12,4,8 DMRS ports, but actual due to emergency case of business etc., during base station scheduling
Less port may only be distributed to user, it is also possible to be fully allocated to user.It, may be by these ports point when distributing port
One user of dispensing, it is also possible to distribute to multiple users.In order to improve maximum flexibility, base station need to be indicated to user some
Whether the resource shared by DMRS port is used for transmission data.
In order to reach most flexible scheduling, when needing DMRS port number fewer, base station only needs to distribute to a small amount of end
For mouth to user, the resource shared by remaining port can send data to user.And when the DMRS port number of needs is more, base
It stands, multiple ports must be distributed to user, DMRS port is shared that resource just seldom or cannot be used for transmitting data at this time
User.As shown in figure 4, for example when the DMRS port number of one user #0 of base station scheduling is 1, and the port distributed is p#0,
If no other users do multi-user transmission with the user, base station can be given on p#2, p#3, p#4, the occupied REs of p#5
User #0 sends data, and base station needs DCI signalings to indicate respectively user in port set #1 (including p#2, p#3), port set # at this time
Whether there are data sending or reception on 2 (including p#4, p#5).And if base station by DMRS port p2, p#3, p#4, p#5 distribution
UE#1 has been given, cannot be used for data transmission in all DMRS ports at this time.DMRS information notice is as shown in table 11, wherein each
Resource shared by port or port set needs base station to be indicated to whether user is used for transmission data.
However, this flexible port instruction notice brings huge physical layer dynamic signaling expense.Base station is being distributed
After user #0 port p#0, it is also necessary to be indicated to the occupied resources of the user's port set #1 whether for data transmission or
It sends, while whether also needs to be indicated to the occupied resources of the user's port set #2 for data transmission or transmission.This is
Since SU-MIMO and MU-MIMO are switching at runtime, it is possible to which other users have only taken up the resource of port set #1, and also having can
Energy other users occupy the resource of port set #1, #2 simultaneously.
Table 11 is dial gauge whether data transmission is included according to the DMRS indication informations of preferred embodiment 4.
Table 11
In other words, whether the resource that the instruction of DMRS port information includes shared by some DMRS ports is used to send number
According to.If the resource shared by the certain port of base station instruction DMRS is used to transmit data to the user, then the data of the user
Symbol must include the symbol where DMRS.
Due to flexibility to be pursued in NR, the initial position of data may also be notified to user, can be in order to save expense
The port information of the initial position of DMRS and DMRS are indicated to carry out combined coding or combine to signal.
For example DMRS only has 1 symbol, as shown in Figure 4.If the initial position of data is m-th of symbol in a time slot
Number, and the symbol of DMRS is in nth symbol, n=3, and m>N, i.e. data be after the DMRS just send, base station is not at this time
Signaling is needed whether to be indicated to some DMRS ports of user for data transmission again.And if m<=n, i.e. data may be in DMRS
It is transmitted on symbol, base station just needs signaling to be indicated to some DMRS ports of user for data transmission still not have at this time.So
In m>During n, it is small to be used to indicate the signaling consumption of DMRS port information, and m<Signaling consumption is big during=n.If individually carry out m's
The instruction of notice and DMRS port information, then the notice of DMRS port information just needs to come according to maximum expense, that is, needs
Indicate some DMRS ports whether for data transmission.So the port information of the initial position of DMRS and DMRS can be indicated
Carry out combined coding.As shown in table 12.As can be seen that work as m>During n, it is necessary to DMRS information indicating bit numbers just lacked very much,
Because acquiescence is that no data are transmitted on the symbol of DMRS.
Table 12 is according to the DMRS indication informations of preferred embodiment 4 and data start combined coding form.
Table 12
Although this united signal can save expense, Table Design is cumbersome, is designed for standard
It is unfavorable, because the index number of form is excessively big.Another united Signalling Designing method, which is characterized in that the port of DMRS
Information aggregate is determined by the data start of high level configuration.
In actual disposition, base station includes 1 or multiple data using one data start set of high-rise configuration
Position in fact, i.e. base station configure one or more m value using high-rise, if in the data start set of high-rise configuration,
All values are both greater than the position of the symbol of DMRS, then the port information set of DMRS is just set #1, a corresponding DMRS end
The form of message breath instruction, whether not indicating that the resource of some DMRS port groups is taken up by data in the form, i.e. DMRS ends
Message breath instruction expense is smaller.If in the data start set of high level configuration, some symbols of the value no more than DMRS
Position, then the port information set of DMRS is just for set #2, form that a corresponding DMRS port information indicates, the form
In some indicating bits whether need to indicate that the resource of some DMRS port groups is taken up by data, i.e. DMRS port information instruction expense
It is bigger.This is because the position of DMRS is usually fixed, and can be separately configured with the initial position of data.Moreover, number
Symbol according to transmission discord DMRS is adjacent.
Further, it is fixed on for the DMRS of 2 symbols, such as DMRS on symbol n, n+1, if the number of high-rise configuration
In gathering according to initial position, all values are both greater than the position n of the symbol of first DMRS, then the port information set of DMRS is just
For set #1, the form that a DMRS port information indicates is corresponded to, the resource of some DMRS port groups is not indicated in the form
Whether being taken up by data, i.e. DMRS port information instruction expense is smaller.Even if the data start of high-rise configuration is n at this time
+ 1, also give tacit consent to no data and transmitted on (n+1)th symbol, can so keep simplicity.If the data of high level configuration rise
In beginning location sets, the position n of some symbols of the value no more than DMRS, then the port information set of DMRS is just set #2,
The form of a DMRS port information instruction is corresponded to, some indicating bits need to indicate the resource of some DMRS port groups in the form
Whether being taken up by data, i.e. DMRS port information instruction expense is bigger
That is, determine DMRS port information instruction set, the implicit indication information with implicit indication information
It is exactly the data start of high-level signaling configuration.One DMRS port information aggregate just corresponds to a DMRS information configuration table
Lattice.
The indicating means of another DMRS port embodying information, the port number of maximum DMRS is with supplement DMRS symbols
Number is associated.Supplement DMRS symbol numbers are more, and maximum DMRS port number is fewer.
As shown in figs. 4-7,6 ports can be supported for 2,1 symbol of DMRS types, 2 symbols can support maximum
12 DMRS ports.This is on the premise of only preposition DMRS (front loaded DMRS).If the mobile ratio of user's element
Comparatively fast, preposition DMRS is only configured, can be had a greatly reduced quality for the precision of channel estimation.It so at this time will be in preposition reference signal
On the basis of configuration supplement demodulated reference signal.And when supplementing reference signal configuration, preposition 1 symbol ratio of reference signal configuration
Appropriate, otherwise the expense of DMRS is excessive.Moreover, configuration supplement DMRS symbol numbers number, depending on user moving speed
Speed.Fig. 9 is the DMRS of the type 2 of preferred embodiment 4 according to the present invention and supplement reference signal schematic diagram.For example, with
During the 120Km/h of family translational speed position, the symbol of a supplement reference signal is configured, shown on the left of Fig. 9.And if user
When translational speed is 500km/h, base station should be allocated to user's more than two DMRS symbols, if shown in 9 right sides.Due to 1
DMRS symbols support most 6 ports, and the port number at this point for the User support of friction speed is all 6.
However, for superfast user, 4 DMRS symbols are configured, that is, configure 3 supplement DMRS symbols expenses excessively
Greatly, shown on the right side of Fig. 9,48 REs are used for DMRS in a PRB.Further, since user is when translational speed is too fast, generally
Subscriber channel condition is poor, it is possible to the power of each port is improved by limiting the port number of user, because always
Power may be more constant.So when supplement reference signal symbol numbers are more, the maximum port of DMRS can be limited
Number, for example, for 2 or 4, Figure 10 be according to the present invention preferred embodiment 4 limitation DMRS maximum port numbers schematic diagram, such as
Shown in Figure 10, what remaining resource was given tacit consent to wherein on DMRS symbols is used for data transmission, to improve efficiency of transmission.
So DMRS for type 2, it can be seen that when no supplement reference signal, preposition reference signal at most may be used
To configure 2 symbols, maximum supports 12 ports.When only configuring a supplement reference signal, preposition reference signal only configures 1
A symbol, since supplement DMRS is the repetition of preposition reference signal, and 6 DMRS of a maximum support of preposition reference signal symbol
Port, so system is maximum when only one supplement reference signal of configuration supports 6 DMRS ports.And work as configuration 2 or more
When supplementing reference signal, such as 3 supplement reference signal symbols, in order to save expense, it can limit and support maximum DMRS ends
Mouth position 2 or 4.
In short, the port number of the maximum DMRS supported is associated with supplement DMRS symbol numbers.Supplement DMRS symbols
Number is more, and maximum DMRS port number is fewer.DMRS port number mentioned here refers to the DMRS port that system is supported
Number.For example real system supports maximum DMRS port numerical digit 4, but base station can give user 1 DMRS end with actual schedule
Mouthful.
It is if so total it can be said that can the DMRS port number supplement reference signal symbol supported of predefined limitation
Number is more, and the DMRS port number of support is fewer.
In addition, in order to reduce physical layer dynamic signaling expense, and not failure activity, another united signal deployment side
Method, which is characterized in that
N number of demodulated reference signal configuration parameter of K group of joint notice.Wherein, K is greater than or equal to 1 integer.N
The integer equal to 2 is greater than, and N number of parameter is included in following parameter：
Scramble sequence, port number, demodulated reference signal and data-reusing state, demodulated reference signal symbol numbers, when
Domain OCC codes supplement the pattern of reference signal.
Further, the parameter of the joint notice is configured by high-level signaling.
Further, it is different to combine the parameter of notice, corresponding DMRS port configuration information set difference.
Further, the different occupied physical layer overheads of DMRS port configuration information set is identical.
Further, the corresponding quasi- colocation site parameter set of each group.
According to the foregoing description, it is numerous to be related to the parameter of DMRS port configuration, can include scramble sequence, port number, solution
Tune reference signal and data-reusing state, demodulated reference signal symbol numbers, time domain OCC codes supplement the pattern of reference signal.Its
The pattern of middle supplement reference signal is primarily referred to as number of the supplement with reference to letter time-domain symbol.Demodulated reference signal and data-reusing shape
State refer to DMRS whether with data-reusing, if multiplexing, those DMRS port groups occupy resource can be used for data transmission.This
A state can be realized with the reference signal of zero energy, can also directly be configured.For example base station is sharp in the pattern described in Fig. 4
It is represented with the DMRS of zero energy, that sent on port p4, p5 is the DMRS of zero energy, and the RE that port p4, p5 are occupied may
Data are used for transmission, and other not cannot be used for then sending data by the reference signal position that zero energy DMRS is represented.So
Different zero energy DMRS configurations just correspond to different demodulated reference signals and data-reusing state.Port number refers to maximum branch
The DMRS port number held.Different time domain OCC codes, only [1 1] can be configured or comprising [1 1] by generally referring to high level,
[1 -1].
High-level signaling, generally refers to RRC signaling, is also not excluded for RRC signaling combination MAC signalings.So base station utilizes high level
Signal deployment configures parameter in combination to user.Such as following table 13a, described in b, base station utilizes 5 DMRS of high-level signaling joint configuration
Parameter.High-level signaling, which configures different combined parameters, can correspond to different DMRS port information aggregates.It is assumed that K=1, i.e.,
Only 1 group.
The first configuration of table 13a：Combine the multiple DMRS parameters for notifying 1 group
Table 13b is configured for second：Combine the multiple DMRS parameters for notifying 1 group
Based on the combined parameters of different high-rise configurations, the corresponding DMRS port information aggregates of table 13a, i.e. DMRS information ginseng
In number form 13a, scramble sequence is necessary for 0, and maximum DMRS port number is necessarily less than equal to 4, and the symbol of demodulated reference signal
Number number is 1, and time domain OCC can only be [1 1].So in the form of corresponding DMRS port information parameter set, Suo Youyuan
The information of element instruction all has to comply with these parameter configurations, such as shown in table 14a.Due to the combined parameters by high level configuration
The value of each DMRS configurations parameter is limited, the significant element number of DMRS port configuration information set has just lacked very much,
Only less than 16 in table 14a, as long as so in DCI it is sufficient that 4bits.Meanwhile in order to reduce user's blind Detecting complexity
Degree, the size of DCI should be always.So for the corresponding different DMRS port information aggregates of the combined parameters of different high-rise configurations
Expense to keep the same.As shown in 14b, though comprising reality it is intentional element number it is seldom, less than 8, but still
With 4bits, i.e. 16 members usually represent DMRS port set, in order to unified DCI expenses.
So in order to notify the port information of DMRS, we ensure that the element of different DMRS port configuration information set
After number is identical, the notice occupied physical layer overhead of DMRS port information is with regard to identical.Here element is included in form only
There are the sleazy rows of index.In order to more have the joint of dynamics notice, can combine notify it is above-mentioned on demodulation ginseng signal configuration
At least three or four in information parameter.
Table 14a DMRS port configuration informations set 1
Table 14b DMRS port configuration informations set 2
Work as K>When 1, i.e., joint configures multiple groups of N number of demodulated reference signal configuration parameter.Wherein, K is greater than or waits
In 1 integer.N is greater than the integer equal to 2, and N number of parameter is included in following parameter：Scramble sequence, port number, demodulation
Reference signal and data-reusing state, demodulated reference signal symbol numbers, time domain OCC codes supplement the pattern of reference signal.It is described
The parameter of joint notice is configured by high-level signaling.Wherein each corresponding quasi- colocation site parameter set of group.It is noticeable
It is each to organize corresponding QCL parameters to configure identical, difference can also be configured.
Since DMRS port can be divided into multiple port sets in NR when more TRP are transmitted, each port set corresponds to a QCL
Parameter configuration collection.Different parameter sets may correspond to different TRP.So for different TRP, the configuration parameter of DMRS is best
It can be different.Such as K=2, it is possible to represent 2 TRP and transmit data to a user, so base station is configured in high-level signaling
2 QCL parameter sets can be included during QCL parameters, each set includes the reference signal on quasi- colocation site needs.Such as table 15
Described, base station configures 3 DMRS parameters of 2 groups using high-level signaling joint.For 2 groups, the value of parameter can be different.It is right
The DMRS configuration sets form answered is as shown in table 15b.Wherein, when total Layer numbers are 1, then actual only 1 port is given tacit consent to
Group, because 1 port can not possibly split into 2 groups.
The first configuration of table 15a：Combine the multiple DMRS parameters for notifying 2 groups
The DMRS configuration sets of table 15b corresponding tables 15a
Base stations united K parameter organized of notice, if N number of parameter value difference of the K each groups of notice, can cause different
DMRS port configuration information set.Equally, the different occupied physical layer overheads of DMRS port configuration information set should phase
Together.
Preferred embodiment 5：
According to above preferred embodiment 3, each code word (CW) can be there are one corresponding MCS in LTE, and RV, NDI refer to
Show domain, a total of 2 code words correspond to 2 transmission blocks (TB) to transmit data.For each transmission block, base station is in DCI to every
A CW configures 1 MCS/RV/NDI (modulation coding scheme/redundancy versions/new data indicator) instructions field (5+1+2=
8bits), as shown in 36.212, MCS needs 5bits, NDI that 1bit, RV is needed to need 2bits.Although the corresponding MCS/ of 2 CW
RV/NDI domains exist always, but base station can only dispatch 1 CW at some moment, and deactivate another.User is connecing
After receiving 1 or 2 TB that base station issues, data demodulation is carried out, then feeds back an A/N, expression pair for each TB blocks
Whether the TB demodulation answered is correct.If demodulation is correct, user if, feeds back A, otherwise just feedback N.When only 1 TB is sent, i.e.,
It only needs to feed back 1bit, for example 0 represents demodulation mistake, 1 represents that demodulation is correct.And when base station is sent to 2 TB of user, user
It needs to feed back 2bits A/N.
When the DMRS port number that base station is sent to user is more, that is, when the data number of plies sent is more or to user point
When the resource matched somebody with somebody is more most, due to there was only 2 TB, then the volume of transmitted data that each TB is included is just very big.At this time just as LTE mono-
For sample when carrying out channel coding, a TB (transmission block) is due to too greatly it is necessary to being divided into multiple CB (code
block).If equally feeding back an A/N for each TB also according to LTE, as long as a CB transmits wrong, entire TB in TB
It is required for transmitting again, even if others CB is transmitted correctly.So it is unfavorable for the raising of efficiency of transmission.And if a TB
It is divided into many CB very much, and an A/N is fed back for each CB, then the expense of feedback is with regard to too many.It is anti-in order to compromise
One or more CB can be formed a CB group, i.e. a CBG (code block by the expense and efficiency of transmission of feedback
Group), an A/N is fed back for each CBG, base station can be separately provided a NDI domain in scheduling for each CBG.Wherein
NDI is used to refer to show that it is new data or legacy data once to transmit corresponding CBG.
First, base station configures the bit number of number X1 or total A/N feedback of total code block group by high-level signaling
The X2 or bit number X3 of total new data instruction.The sum of total number, that is, corresponding number of all code words.X is X1, X2, X3
General designation, i.e. X can represent X1, can also represent X2 or X3.
Since the number of code word is dynamic change, in order to ensure that X is constant, the corresponding X values of each code word should dynamically become
Change, i.e., it is related to the code word number that certain moment dispatches with X.If for time slot #0, base station scheduling is 1 to the code word number of user
It is a, then the code block group number of the code word is exactly X1, and user is exactly X2 for the A/N bit numbers of the codeword feedback, and base station is used for
The bit number being indicated to used in the new data instruction of the user is exactly X2.If for time slot #1, base station scheduling is to the code of user
Word number is 2, then the code block group number summation of 2 code words is exactly X1, and user is directed to the A/N ratios of 2 codeword feedbacks
Special number summation is exactly X2, and base station is used to indicate to the new data instruction of this 2 code words of the user bit number summation used just
It is X2.So for different code word numbers, the code block group number corresponding to each code word, A/N number of bits, NDI bits
Number can be different.That is the corresponding code block group number of a code word, the special number of the corresponding A/N feedback ratios of a code word or a code word
Corresponding new data indication bit number can depend on the number N of transmitted codewords.
Since the channel condition of different code words experience is different, so the money of the multiple code words of user is distributed in final base station
Source is also different.Such as base station distribute to the TB size of 2 CW of a user can be different, MCS can be different, and the number of plies can also
It is different.This is because user feedback is different to the CQI of this 2 code words of base station.So CBG number X1_k of different code word configurations,
Either the bit number X2_k of A/N feedbacks or the bit number X3_k of new data instruction can be different, and wherein footmark k represents code word
Sequence number, such as a total of 2 CW, then k=0,1；And if there is 3 CW, k can be equal to 0,1,2.
It is contemplated that the channel condition of different code words, for example the size of TB of the distribution of code word 0 is more than code word 1, so
The number of the high-rise overabsorption CBG configure or predefined of code word 0, i.e. X1_0 can be given>X1_1 or X2_0>X2_1 or
Person X3_0>X3_1.Similar rule is as follows.The parameter is exactly X1_k either X2_k or X3_k.
Rule 1：Parameter comprising the code word more than the number of plies is big, small comprising the few code parameters of the number of plies；
Rule 2：Code parameters big TB are big, and code parameters small TB are small；
Rule 3：Code parameters big MCS are big, and code parameters small MCS are small；
Rule 4：The code parameters that the CQI of feedback is big are big, and code parameters big CQI are big；
Generally, whether base station come each CBG of dynamic notification can be new data with DCI, i.e., notify one for each CBG
NDI.In order to ensure that the load of DCI is constant.
This method is particularly suitable for X when be not the integral multiple of code word number N, i.e. X divided by N are not integer.Such as
The X1 of high level configuration is equal to 5, and the code word number that user is distributed in base station is 2, at this time can not possibly 2.5 CBG of each code word.
So concentrating rule it may determine that CBG number of which code word is big according to above at this time, CBG number of that code word is small.It is right
In rule 4, general user can be directed to the different CQI of different codeword feedbacks when carrying out channel condition feedback.It base station can basis
This CQI is big or small to judge the corresponding X1/X2/X3 of which code word.
A kind of method is exactly, for a parameter, for the big code word of parameter, the parameter be equal to X divided by N and to
Upper rounding or for the small code word of parameter, the parameter is equal to X divided by N and downward rounding.Such as code word
CBG number, if the CBG number that code word 0 includes is more, X1_0 is equal to X divided by N rounds up.Such as X1=5, N=2, then
X1 divided by N is equal to 2.5, and position 3 after rounding up, that is, it is exactly to take than one decimal big to round up, and nearest from this decimal
Integer.X1_1 is equal to 5-3=2 at this time.Because the corresponding CBG number summation of a code word is necessarily equal to 5.
Optionally, for a code word, the parameter is equal to the number of plies that the code word includes and is multiplied by X again divided by all code words
Total number of plies, then rounding again.For example X=5, code word 0 include 3 layers, code word 1 includes 2 layers, then X1_0 is equal to what code word 0 included
The number of plies 3 is multiplied by X, then divided by the number of plies 5 in total be equal to 3 to get to X1_0.For example, X=5, code word 0 include 1 layer, code word 1 is wrapped
Containing 2 layers, then X1_0 is equal to the number of plies 1 that code word 0 includes and is multiplied by 5, then divided by the number of plies 3 in total be equal to three points to get to X1_0
Five, rounding rear guard 2 or 1.Rounding herein can round up or downward rounding.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but it is very much
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, which is stored in a storage
In medium (such as ROM/RAM, magnetic disc, CD), used including some instructions so that a station terminal equipment (can be mobile phone, calculate
Machine, server or network equipment etc.) perform method described in each embodiment of the present invention.
Embodiment two
A kind of configuration device of reference signal information is additionally provided in the present embodiment, which is used to implement above-mentioned implementation
Example and preferred embodiment had carried out repeating no more for explanation.As used below, term " module " can be realized pre-
Determine the combination of the software and/or hardware of function.Although following embodiment described device is preferably realized with software,
The realization of the combination of hardware or software and hardware is also what may and be contemplated.
According to another embodiment of the invention, a kind of notice device of reference signal information is provided, applied to first
Communication node, described device include：
Acquisition module, for obtaining first information set A and the second information aggregate B, by the first information set A and institute
It states the second information aggregate B and is respectively divided into N number of subset, and associate the first information set subset Ai and the second information collection
Zygote collection Bi, wherein, the N is greater than 1 positive integer, and the i is the natural number less than or equal to N since 1；Wherein, first
Element in information aggregate A is used to indicate at least one of：Modulation demodulation system MCS, redundancy versions RV information；Described second
Element in information aggregate B is used to indicate demodulated reference signal port configuration information, wherein, the element instruction of the subset Bi
Demodulated reference signal port belongs to a code word；
First sending module, for the first information set A and the second information aggregate B to be sent to the second communication
Node.
You need to add is that in the embodiment of the method for embodiment one, the method and step that is performed by above-mentioned first communication node,
It can be performed by the configuration device of the reference signal information.
A kind of configuration device of DMR port informations is additionally provided according to another embodiment of the invention, applied to first
Communication node, including：
Setup module, for presetting one or more demodulated reference signal port set；
Second sending module indicates the following information of the second communication node for passing through signaling：The default demodulation ginseng
Examine whether the occupied resource of signal port group is used to send data；
Wherein, first communication node arranges non-default demodulated reference signal port set with second communication node
The resource occupied cannot be used for sending data, and signaling instruction is not required in the non-default demodulated reference signal port set
Whether data are sent in resource；Wherein, the non-default port set number is at least 2, and the solution in same port set
Reference signal port is adjusted to occupy identical running time-frequency resource.
You need to add is that in the embodiment of the method for embodiment one, the method and step that is performed by above-mentioned first communication node,
It can be performed by the configuration device of the DMR port informations.
Another embodiment according to the preferred embodiment of the invention additionally provides a kind of configuration device of DMR port informations,
Applied to the first communication node, including：
3rd sending module, for sending joint notice to the second communication node；Wherein, it is described joint notice include with
At least one lower information：The initial position of DMRS port information and data transmission；The maximum port number of DMRS and supplement DMRS
Symbol numbers.
You need to add is that in the embodiment of the method for embodiment one, the method and step that is performed by above-mentioned first communication node,
It can be performed by the configuration device of the DMR port informations.
According to another embodiment of the invention, a kind of configuration device of control signaling is additionally provided, it is logical applied to first
Believe node, which includes：
Determining module, for determining at least one of parameter according to the number N for transmitting the code word in data：One code word
Corresponding code block group number, the corresponding ACK/NACK feedback bits number of a code word, the corresponding new biography transmission of data of a code word
Indication bit number, wherein, the N is integer.
You need to add is that in the embodiment of the method for embodiment one, the method and step that is performed by above-mentioned first communication node,
It can be performed by the configuration device of the control signaling.
According to another embodiment of the invention, a kind of notice device of reference signal information is additionally provided, applied to
Two communication nodes, described device include：
First receiving module, for receiving the first information set A and the second information aggregate B that the first communication node is sent,
Wherein, the first information set A and the second information aggregate B are respectively divided by first communication node
N number of subset, and the first information set subset Ai and the second information aggregate subset Bi are associated, wherein, the N is greater than
1 positive integer, the i are the natural numbers less than or equal to N since 1；Wherein, the element in first information set A is used to indicate
At least one of：Modulation demodulation system MCS, RV information；Element in the second information aggregate B is used to indicate demodulation reference
Signal port configuration information, wherein, the demodulated reference signal port of the element instruction of the subset Bi belongs to a code word.
You need to add is that in the embodiment of the method for embodiment one, the method and step that is performed by above-mentioned second communication node,
It can be performed by the configuration device of the reference signal information.
According to another embodiment of the invention, a kind of configuration device of DMR port informations is additionally provided, applied to second
Communication node, including：
Second receiving module, for receiving the following information that the first communication node is sent：First communication node is preset
The occupied resource of demodulated reference signal port set whether for sending data；
Wherein, first communication node arranges non-default demodulated reference signal port set with second communication node
The resource occupied cannot be used for sending data, and signaling instruction is not required in the non-default demodulated reference signal port set
Whether data are sent in resource；Wherein, the non-default port set number is at least 2, and the solution in same port set
Reference signal port is adjusted to occupy identical running time-frequency resource.
You need to add is that in the embodiment of the method for embodiment one, the method and step that is performed by above-mentioned second communication node,
It can be performed by the configuration device of the DMR port informations.
According to another embodiment of the invention, a kind of configuration device of DMR port informations is additionally provided, applied to second
Communication node, including：
3rd receiving module, for receiving the joint notice that the first communication node is sent；
Wherein, the joint notice includes at least one following information：The starting of DMRS port information and data transmission
Position；The maximum port number of DMRS and supplement DMRS symbol numbers.
You need to add is that in the embodiment of the method for embodiment one, the method and step that is performed by above-mentioned second communication node,
It can be performed by the configuration of the DMR port informations.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
In the following manner realization is crossed, but not limited to this：Above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with arbitrary
The form of combination is located in different processors respectively.
Embodiment three
According to another embodiment of the invention, a kind of processor is additionally provided, the processor is used for operation program,
In, described program performs the method described in above-mentioned any one of alternative embodiment when running.
Example IV
According to another embodiment of the invention, a kind of storage medium is additionally provided, the storage medium includes storage
Program, wherein, described program performs the method described in above-mentioned any one of alternative embodiment when running.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Computing device realize that they can concentrate on single computing device or be distributed in multiple computing devices and be formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
Performed in the storage device by computing device, and in some cases, can be performed with the order being different from herein shown in
The step of going out or describing they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.It to be combined in this way, the present invention is not limited to any specific hardware and softwares.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Finally, the bilingual table of the technical term described in present specification is given at, it is as follows：
Claims (29)
1. a kind of collocation method of reference signal information, which is characterized in that the described method includes：
First information set A and the second information aggregate B is obtained, by the first information set A and the second information aggregate B points
N number of subset is not divided into, and associates the first information set subset Ai and the second information aggregate subset Bi, wherein, institute
The positive integer that N is greater than 1 is stated, the i is the natural number less than or equal to N since 1；
Wherein, the element in first information set A is used to indicate at least one of：Modulation demodulation system, redundancy version information；
Element in the second information aggregate B is used to indicate demodulated reference signal port configuration information, wherein, the member of the set B
The demodulated reference signal port of element instruction belongs to a code word.
2. according to the method described in claim 1, it is characterized in that, the subset Bi, Bj of second information aggregate are different,
In, the i is not equal to j, and the i, j are the natural numbers less than or equal to N since 1.
3. the according to the method described in claim 2, it is characterized in that, demodulation reference letter that the element of the Bi and Bj each indicates
In number port configuration information, there are it is following at least it is one of lower be characterized in it is different：
Scramble sequence, port sequence number, port number, if with data transmission procedure simultaneous transmission, demodulated reference signal demodulation ginseng
Examine signal code number, time domain code.
4. method according to claim 1 or 2, which is characterized in that the subset Ai, Aj of the first information set are different,
Wherein i is not equal to j, and the i, j are the natural numbers less than or equal to N since 1.
5. according to the method described in claim 4, it is characterized in that, indicate that the element of second code word is different in the Ai, Aj.
6. the according to the method described in claim 4, it is characterized in that, information content phase for the element instruction that the Ai, Aj are included
Together, but element index is different.
7. according to the method described in claim 1, it is characterized in that, the method further includes：
The 3rd information aggregate C and the 4th information aggregate D is obtained, associates the 3rd information aggregate and the 4th information aggregate；
Element in the 3rd information aggregate C is used to indicate one of following information：Modulation demodulation system, redundancy version information；
Element in the 4th information aggregate D is used to indicate demodulated reference signal port configuration information, and, the 4th information
The demodulated reference signal port of element instruction in set belongs to two code words.
8. the method according to the description of claim 7 is characterized in that the 4th information aggregate D, with second information aggregate
The subset of B is compared, and at least element index is different.
9. the method according to claim 7 or 8, which is characterized in that a subset and the 3rd information of first information set A
Set C is identical.
10. the method according to claim 1 or 7, which is characterized in that association X information aggregate and Y information set,
In, the X and Y are natural number, including：
It notifies to give information of second communication node on the demodulated reference signal port in the first communication node of communicating pair
In the case of belonging to Y information set, first communication node notifies second communication node on the modulation /demodulation
Mode and/or redundancy version information must belong to the element in X information aggregate.
11. a kind of collocation method of demodulated reference signal port information, which is characterized in that including：
Preset one or more demodulated reference signal port set；
The following information of the second communication node of opposite end is indicated by signaling：The default demodulated reference signal port set is occupied
Whether resource is used to send data；
Wherein, the resource that the non-default demodulated reference signal port set of communicating pair agreement is occupied cannot be used for sending data,
And it is not required whether signaling instruction sends data in the non-default demodulated reference signal port set resource；Wherein, it is described
Non-default port set number is at least 2, and the demodulated reference signal port in same port set occupies identical time-frequency
Resource.
12. according to the method for claim 11, which is characterized in that limit the power of all demodulated reference signal ports as perseverance
Definite value.
13. according to the method for claim 11, which is characterized in that different second communication nodes or cell are preset
Different demodulated reference signal port sets.
14. according to the method for claim 11, which is characterized in that configured by configuring the reference signal of zero energy described
Non-default demodulated reference signal port set.
15. a kind of collocation method of demodulated reference signal port information, which is characterized in that including：
Send joint notice；
Wherein, the joint notice includes at least one following information：Demodulated reference signal port information and data transmission
Initial position；The maximum port number of demodulated reference signal and supplement demodulated reference signal symbol numbers.
16. according to the method for claim 15, which is characterized in that the set of the demodulated reference signal port information is by height
The initial position of the data of layer configuration determines.
17. according to the method for claim 15, which is characterized in that the supplement demodulated reference signal symbol numbers are more,
The maximum port number of the demodulated reference signal is fewer.
18. a kind of collocation method of control signaling, which is characterized in that
Number N according to the code word in transmission data determines at least one of parameter：The corresponding code block group number of one code word,
The corresponding ACK/NACK feedback bits number of one code word, the corresponding new biography transmission of data indication bit number of a code word, wherein,
The N is integer.
19. according to the method for claim 18, which is characterized in that
For a parameter, the sum of corresponding parameter of all code words is X, and the X is predefined or high-level signaling is matched somebody with somebody
It puts.
20. according to the method for claim 19, which is characterized in that for a parameter, predefined there are following rule
At least one then：
Rule 1：The code word is more comprising the number of plies, and the parameter of the code word is bigger；
Rule 2：The transmission block TB of the code word is bigger, and the parameter of the code word is bigger；
Rule 3：The modulation demodulation system of the code word is bigger, and the parameter of the code word is bigger；
Rule 4：The feedback channel quality instruction CQI of the code word is bigger, and the parameter of the code word is bigger.
21. according to the method for claim 20, which is characterized in that for a parameter, the business of the X and N
Value is not integer.
22. according to the method for claim 21, which is characterized in that for a parameter, at least there are two codes
In the case of word, for the big code word of the parameter, the parameter be equal to X divided by N and round up and/or, for the ginseng
The small code word of number, the parameter are equal to X divided by N and downward rounding.
23. the method according to claim 20 or 21, which is characterized in that for a code word, the parameter is equal to the code
The number of plies that word includes is multiplied by X again divided by total number of plies of all code words, then rounding again.
24. a kind of device of the notice of reference signal information, applied to the first communication node, which is characterized in that described device bag
It includes：
Acquisition module, for obtaining first information set A and the second information aggregate B, by the first information set A and described
Two information aggregate B are respectively divided into N number of subset, and associate the first information set subset Ai and second information aggregate
Collect Bi, wherein, the N is greater than 1 positive integer, and the i is the natural number less than or equal to N since 1；
Wherein, the element in first information set A is used to indicate at least one of：Modulation demodulation system, redundancy version information；
Element in the second information aggregate B is used to indicate demodulated reference signal port configuration information, wherein, the member of the subset Bi
The demodulated reference signal port of element instruction belongs to a code word；
First sending module, for the first information set A and the second information aggregate B to be sent to the second communication section
Point.
25. a kind of configuration device of demodulated reference signal port information, applied to the first communication node, which is characterized in that including：
Setup module, for presetting one or more demodulated reference signal port set；
Second sending module indicates the following information of the second communication node for passing through signaling：The default demodulation reference letter
Whether number occupied resource of port set is for sending data；
Wherein, first communication node is arranged with second communication node shared by non-default demodulated reference signal port set
Some resources cannot be used for sending data, and signaling instruction is not required in the non-default demodulated reference signal port set resource
On whether send data；Wherein, the non-default port set number is at least 2, and the demodulation ginseng in same port set
It examines signal port and occupies identical running time-frequency resource.
26. a kind of configuration device of demodulated reference signal port information, applied to the first communication node, which is characterized in that including：
3rd sending module, for sending joint notice to the second communication node；Wherein, the joint notice includes following letter
At least one breath：The initial position of demodulated reference signal port information and data transmission；The maximum port of demodulated reference signal
Number and supplement demodulated reference signal symbol numbers.
27. a kind of configuration device of control signaling, applied to the first communication node, it is characterised in that：
Determining module, for determining at least one of parameter according to the number N for transmitting the code word in data：One code word corresponds to
Code block group number, the corresponding ACK/NACK feedback bits number of a code word, the instruction of a code word corresponding new biography transmission of data
Number of bits, wherein, the N is integer.
28. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein, when described program is run
Perform the method described in 1 to 23 any one of the claims.
29. a kind of processor, which is characterized in that the processor is used for operation program, wherein, it is performed when described program is run
State the method described in any one of claim 1 to 23.
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| PCT/CN2018/097809 WO2019029401A1 (en) | 2017-08-11 | 2018-07-31 | Method and device for configuring reference signal information |
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| WO2019029401A1 (en) * | 2017-08-11 | 2019-02-14 | 中兴通讯股份有限公司 | Method and device for configuring reference signal information |
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| CN112262542A (en) * | 2018-06-11 | 2021-01-22 | 高通股份有限公司 | Transmission preemption in multiple TRP operations |
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| WO2020199180A1 (en) * | 2019-04-04 | 2020-10-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for signal processing |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114710243A (en) | 2022-07-05 |
| CN108111275B (en) | 2022-01-28 |
| WO2019029401A1 (en) | 2019-02-14 |
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