CN108809609A

CN108809609A - A kind of DMRS instruction and method of reseptance, transmitting terminal and receiving terminal

Info

Publication number: CN108809609A
Application number: CN201810586298.7A
Authority: CN
Inventors: 任翔; 刘永; 戎璐
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-08-11
Filing date: 2017-11-17
Publication date: 2018-11-13
Anticipated expiration: 2037-11-17
Also published as: CN108809609B

Abstract

This application discloses a kind of DMRS to indicate the method and device with DMRS receptions, the method includes：Transmitting terminal determines DMRS configuration informations corresponding with current DMRS transmission plans from multigroup demodulated reference signal DMRS configuration informations, and obtains DMRS according to DMRS configuration informations and indicate information；Every group of DMRS configuration information includes a plurality of DMRS configuration informations；The transmitting terminal sends the DMRS and indicates information.Implement method and apparatus provided by the present application, matched with the several scenes of NR, the demand of the data transmission of the higher number of plies can be met, instruction expense can be further decreased.

Description

A kind of DMRS instruction and method of reseptance, transmitting terminal and receiving terminal

Technical field

This application involves the communications field more particularly to a kind of demodulated reference signal (demodulation reference Signal, DMRS) instruction and method of reseptance, transmitting terminal and receiving terminal.

Background technology

Multiple-input and multiple-output (full name in English：Multiple-Input Multiple-Output, English abbreviation：MIMO) skill Art utilizes the resource of Spatial Dimension, signal can be made in space acquisition array gain, again under the premise of not increasing system bandwidth With with diversity gain and co-channel interference reduction gain, exponentially promoted communication system capacity and spectrum efficiency.For example, being drilled for a long time Into (full name in English：Long Term Evolution, English abbreviation：LTE) in system, single user (single user, SU) is most It is big that 8 layers of orthogonal DMRS port multiplexing, DMRS is supported to occupy 24 RE.Specifically：On frequency domain, DMRS port can be mapped in often A resource block (resource block, RB) is on the 0th, 1,5,6,10,11 subcarrier of (pair)；In the time domain, DMRS Port can be mapped on the 5 of each subframe, 6,12 and 13 symbols.As shown in Figure 1.

Continuous improvement however as people to communicating requirements such as high-speed, high reliability, low latencies, Modern Communication System It will be faced with more capacity, the more extensively challenge of covering and more low latency always, these demands also become future network, and (English is complete Claim：New radio, English abbreviation：NR crucial requirement).

In the receiving terminal demodulating process of communication system, compared to non-coherent demodulation, coherent demodulation performance is more preferable, and has The advantage of 3dB or so, thus coherent demodulation is used by Modern Communication System more extensively.However ofdm system is to each carrier wave Modulation is all suppressed carrier, and the coherent demodulation of receiving terminal needs reference signal, also referred to as pilot signal or reference letter Number (full name in English：Reference Signal, English abbreviation：RS), they are distributed in time-frequency two-dimensional space in OFDM symbol Middle different resource unit (full name in English：Resource Element, English abbreviation：RE on), there is known amplitude and phase Position.Equally in mimo systems, each transmission antenna (virtual-antenna or physical antenna) has independent data channel, based on pre- The RS signals known, receiver carry out channel estimation for every transmission antenna, and based on this reduction transmission data.

Channel estimation refers to compensation channel fading and noise and rebuilds the process for receiving signal, it utilizes transmitter Change come the time domain and frequency domain for tracking channel with the RS of receiver precognition.For example, in order to realize the data of high-order multiaerial system Demodulation, LTE/-A systems define demodulated reference signal (full name in English：Demodulation Reference Signal, English Referred to as：DMRS), which is used for uplink/downlink control channel and data channel such as Physical Downlink Shared Channel (full name in English： Physical Downlink Share Channel, English abbreviation：PDSCH demodulation).

Using identical pretreatment mode, feature is for DMRS and user data：

1) user specific (UE-specific), i.e., each terminal data corresponding demodulated reference signal use phase Same pre-coding matrix.

2) from the point of view of network side, the DMRS of each layer transmission is mutually orthogonal.

3) DMRS is generally used to support beam forming and precoding technique, thus only sends out on scheduled resource block It send, the quantity of transmission is related to data fluxion (or being the number of plies), preceding with antenna port one-to-one correspondence rather than physical antenna number Person is less than or equal to the latter, and the two is connected by layer mapping and precoding.

In current standard, downlink uses the maximum of DMRS that orthogonal data fluxion can be supported for 8, each PRB pair The inside resource overhead is 24 Re, and DMRS is with Block-type pilot formal distribution in each PRB.Each port (port) occupies respectively 12 RE, i.e. its port density are identical.Meanwhile the sequence design of DMRS is determined according to the density of each port, thus its length For definite value.

However, (full name in English of newly eating dishes without rice or wine：New Radio, English abbreviation：NR the scene) supported is more diversified, thus It can support various modes (pattern), for example, adapt to different frequency range data transmission, multiplex mode can have prodigious difference. Also, in order to further meet more capacity transmission demand, the maximum of the DMRS of data channel can support orthogonal data fluxion meeting More than 8, as orthogonal 12DMRS ports have been supported in 3gpp RAN1#88bis meetings.

In addition, all very low compared to the dual-mode antenna in LTE system, thus the MU dimensions supported with clock synchronization of MU compared with Low, such as when MU is dispatched, it is 2 layers to allow single user's maximum number of plies, and total orthogonal number of plies is 4 layers.But in future network, 4RX Terminal may exist as the baseline for receiving antenna dimension, and MU dimensions will change at this time.

In actual transmissions, base station needs to inform the number of plies of its distribution of terminal, DMRS port number, sequence configuration, multiplexing side The information such as formula.In LTE, these information are indicated by DCI.But NR has supported a variety of pattern, port numbers, multiplexing Mode and mapping ruler are there are a variety of variations, and prodigious expense will be caused by continuing to use the DCI indicating modes of LTE, therefore in NR such as What instruction DMRS is a technical problem to be solved urgently.

Invention content

In order to solve the above technical problems, a kind of demodulated reference signal instruction of the application offer and method of reseptance and device.

Under the MU-MIMO scenes of NR systems, the orthogonal port for the CDM multiplexings that can be supported is different from LTE, maximum energy It is enough to support to 12 orthogonal ports, therefore the number of plies of its distribution of terminal is informed in LTE according only to a DMRS configuration information table, The mode of the orthogonal port numbers of DMRS, sequence configuration, the information such as multiplex mode is no longer applicable in, and in the embodiment of the present application, design is multigroup DMRS configuration informations match the different scenes DMRS transmission demands of future network (new radio, NR) respectively.

On the one hand, the method provided by the present application demodulated reference signal instruction and received, including：

Transmitting terminal determination from multigroup demodulated reference signal DMRS configuration informations is corresponding with current DMRS transmission plans DMRS configuration informations, and DMRS is obtained according to DMRS configuration informations and indicates information；Every group of DMRS configuration information includes a plurality of DMRS configuration informations；Then DMRS information is sent to receiving terminal；After receiving terminal receives DMRS instruction information, auxiliary data solution It adjusts.

In the embodiment of the present application, current DMRS transmission plans are indicated by indicating information；Different DMRS is passed The corresponding maximum of transmission scheme can support orthogonal port number difference or corresponding DMRS patterns or corresponding DMRS Configuration Types not Together.

The maximum of the corresponding DMRS configuration informations of the different DMRS transmission plans can support that orthogonal port number is different.

The length of the corresponding DMRS instructions information of the different DMRS transmission plans is different.

Multiple DMRS ports in at least one DMRS configuration informations adhere to different CDMA CDM groups separately, wherein Meet the co-located QCL relationships of non-standard between different CDM groups.

In a kind of realization method, it can support orthogonal port number for different maximums, different groups of DMRS can be configured and matched Confidence ceases, this group of DMRS configuration information includes a plurality of DMRS configuration informations；For example, orthogonal port number, which is 4, to be supported for maximum, Orthogonal port number is 6, and orthogonal port number is 8, the MIMO scene that orthogonal port number is 12, and corresponding DMRS is respectively configured and matches confidence Breath, the DMRS configuration informations are the orthogonal port numbers of DMRS for allowing receiving terminal to know that it can be used, sequence configuration, multiplex mode etc. Deng to carry out correct data decoding.

In another realization method, what which configured for different DMRS patterns, in general, one Kind of DMRS patterns, which just correspond to, a kind of to be supported maximum to support orthogonal port number or maximum that can support the orthogonal transmission number of plies MIMO scene, the DMRS patterns illustrate that it supports how many orthogonal orthogonal port sets, each orthogonal port set is by how many A resource unit composition, therefore different DMRS configuration informations are configured for different DMRS patterns, receiving terminal can also be allowed to know Know the orthogonal port numbers of DMRS that it can be used, sequence configuration, multiplex mode etc., to carry out correct data decoding in road.

In a kind of realization method of first aspect, DMRS configuration informations can be presented by protocol conventions table, Its specific implementation form can be Downlink Control Information (downlink control information, DCI) table (table), Multiple DCI table at least contain a different set of DMRS configuration informations；Include a plurality of DMRS inside one group of DMRS configuration information Configuration information is presented, referred herein as DMRS configuration information tables with a table.

DMRS transmission plans corresponding with DMRS information are by high-level signaling such as wireless heterogeneous networks (radio Resource control, RRC) signaling transmission, naturally it is also possible to other configurations Wire Parameters corresponding with scene, such as frequency Point, carrier wave interval, frame structure etc..DMRS instructions information can pass through DCI signalings or media access control control unit (media Access control control element, MAC CE) it sends.

In the concrete realization, each DMRS configuration information table, which corresponds to different maximums, can support orthogonal port (port) Number, such as maximum can support that orthogonal port number can be at least two in { 4,6,8,12 }；

In another implementation, each DMRS configuration information table can correspond to different DMRS patterns (pattern) or DMRS Configuration Types (configuration type).

In one implementation, it in the DMRS configuration information tables, is set according to a point row are carried out according to orthogonal port combination Meter, the orthogonal port combination of e.g., less than or equal to 4 layers transport layer are set with the orthogonal port combination point row more than 4 layers of transport layer Meter；

It in one implementation, can when the DMRS configuration informations are presented in the form of DMRS configuration information tables To be divided according to number of codewords (codeword number), can not also be divided according to number of codewords, but foundation Total maximum can support orthogonal port number or the transmission number of plies according to receiving terminal to carry out a point row, specifically can be according to certain ratio It is divided.

Further include the instruction information of total orthogonal port number in the DMRS configuration information tables, which can indicate reality The quantized value for all orthogonal port numbers that all orthogonal port numbers or actual capabilities that border is likely to occur occur.It is all orthogonal The quantized value of port number can be the orthogonal number of plies information of DMRS or instruction information is gathered in DMRS antenna orthogonals port, or The CDM group informations of DMRS antenna orthogonals port, or the information according to the generation of CDM sizes.It should be understood that total orthogonal port Number is identical as total orthogonal DMRS transmission number of plies.The CDM group informations of DMRS antenna orthogonals port can be CDM groups number or CDM group numbers or CDM group status informations.

It should be noted that multigroup DMRS configuration informations can be presented with a total information table, Ye Jiduo A DMRS configuration information tables can be an information summary table, which supports maximum that can support orthogonal port number, more A DMRS configuration information tables are the subsets of the information summary table, and subset is chosen from the information summary table can be supported just according to maximum Port number or DMRS patterns either high-level signaling is handed over to be selected.

Wherein, the CDM group informations of the DMRS antenna orthogonals port in DMRS configuration informations be CDM groups status information or CDM groups serial number or CDM group # or CDM group numbers；In a kind of realization method, the CDM groups number be it is occupied in system/adjust Spend the CDM groups of (co-scheldued).

Wherein, further include the symbolic information of DMRS in the DMRS configuration informations in DMRS configuration informations.

Wherein, range workable for the DMRS configuration informations is configured by RRC signaling, which is to be based on The symbolic information or DMRS maximums symbol numbers of DMRS determines.

Wherein, range workable for the DMRS configuration informations and instruction DMRS in radio resource control signaling RRC are maximum The Wire Parameters of symbol numbers.

Wherein the DMRS maximums symbol numbers difference when, carry out the downlink control letter information DCI letter of DMRS port scheduling It enables length difference or DCI number of bits is different or the domains DCI are different.

Wherein, when carrying out single user SU scheduling using the DMRS configuration informations, FDM scheduling is first carried out in 2 CDM groups Under the MIMO scene of NR systems, the orthogonal port for the CDM multiplexings that can be supported is different from LTE, and maximum can be supported to 12 A orthogonal port.Terminal usually requires to know the port information for the other-end dispatched jointly, to which which position RE obtained It uses the DMRS of port to occupy by other-end, the data of oneself will not be transmitted.If terminal cannot obtain these information, Terminal can demodulate the DMRS of other users as the data of oneself, so as to cause decoding error.How terminal to be made to know The DMRS of which port is occupied, needs a kind of effective DMRS rate-matcheds indicating mode, in order to solve this technical problem, A kind of demodulated reference signal indicating means of the application offer and method of reseptance, including：

Transmitting terminal generates demodulated reference signal DMRS and indicates information；The DMRS instructions information, which is used to indicate, can be used for carrying The resource not occupied by DMRS in the resource of DMRS；Transmitting terminal sends the DMRS to receiving terminal and indicates information；Receiving terminal according to The DMRS indicates information, is not being carried out data demodulation in resource that DMRS is occupied.Specifically, receiving terminal needs to pass through downlink It controls information or media access control control unit receives the DMRS and indicates information

Receiving terminal indicates information according to the DMRS that receives, obtains the current orthogonal transmission number of plies of quantization, or it is current by Using port set combinations of states, or the orthogonal transmission number of plies that uses of current non-receiving terminal or port set state, or need to be silent Resource unit, to obtain the resource that is not occupied by DMRS in the resource that can be used for carrying DMRS.

In a kind of realization method, receiving terminal also receives the instruction current DMRS and passes before receiving DMRS instruction information The DMRS transmission plans of transmission scheme indicate information；The different corresponding maximums of DMRS transmission plans can support orthogonal port number not Together or corresponding DMRS patterns or corresponding DMRS Configuration Types are different.

It should be understood that DMRS transmission plans are can to support orthogonal end by DMRS patterns or DMRS Configuration Types or maximum Mouthful number embodies.

It should be noted that the supported orthogonal port number of maximum here is what transmitting terminal can be dispatched in present frame Maximum orthogonality port number, for example the DMRS pattern of 12port can be used, but current maximum Port Scheduling number is only 4, maximum supported orthogonal port number is related with base station scheduling, the maximum orthogonality end supported less than or equal to DMRS pattern Mouth number.

For example, the MU-MIMO scenes for being 4,6,8,12 for maximum supported orthogonal port number, or for nonopiate The scene (scene of 2 scramblers) that port number is 8,12,16,24, namely orthogonal port number can be supported according to different maximums, point Corresponding DMRS instructions information is not configured, which is that receiving terminal is allowed to know, in running time-frequency resource, which resource unit is by it The DMRS of his user is occupied, and the data of oneself, receiving terminal can not avoid these resource units when data demodulation, To carry out correct data decoding.

In another realization method, DMRS instructions information is configured for different DMRS patterns, can also be corresponded to The number of DMRS port group, which is configured, in DMRS patterns (for example can have two tables to correspond to respectively and contain in DMRS patterns 2 or 3 DMRS port groups.).

In general, a kind of DMRS patterns just correspond to a kind of fields MU-MIMO for supporting maximum that can support orthogonal port number Scape, the DMRS patterns illustrate that it supports how many orthogonal CDM port sets, each port set is by how many a resource unit groups At, therefore configure different instruction information for different DMRS patterns.

In another realization method, instruction information can also for DMRS Configuration Types (congfigration type) come It is configured.

With upper type, receiving terminal can be allowed to know, in running time-frequency resource, which resource unit is by the DMRS of other users It occupies, receiving terminal can correctly carry out data demodulation.

In a kind of realization method, receiving terminal need to receive the DMRS instruction information that is sent in a manner of signaling with it is available Correspondence between the resource not occupied by DMRS in the resource of carrying DMRS.Signaling mentioned here is typically high-rise letter It enables, such as RRC signaling.

In another realization method, this receiving terminal is also stored with DMRS configuration informations, that is, DMRS indicates information and can be used Correspondence between the resource not occupied by DMRS in the resource of carrying DMRS is in the DMRS configuration informations being locally stored It can find.

DMRS configuration informations in the embodiment of the present application further include the instruction information of total orthogonal port number, total orthogonal port Several instruction information can indicate all orthogonal port numbers that actual capabilities occur or all orthogonal ends that actual capabilities occur The quantized value of mouth number.The quantized value of all orthogonal port numbers is the orthogonal number of plies information of DMRS or DMRS antenna orthogonals Port set instruction information or the CDM group informations of DMRS antenna orthogonals port, or the information according to the generation of CDM sizes. The CDM group informations of DMRS antenna orthogonals port are CDM groups number or CDM group numbers or CDM group status informations.

Wherein, in the orthogonal number of plies information of the DMRS, the orthogonal numbers of plies of the DMRS are the DMRS antennas in a CDM group The integral multiple of port number；The integral multiple of the continuous DMRS antenna ports quantity of serial number in an either CDM group；Either one The value of the serial number of DMRS antenna ports in a CDM groups.In concrete implementation, DMRS numbers of plies information can be that stepping quantifies DMRS number of plies information.In the DMRS number of plies information of the stepping quantization, the DMRS numbers of plies can be the DMRS antennas in a CDM group The integral multiple of port number.For example, for one containing there are two the DMRS patterns of DMRS antenna port groups, it is assumed that port set 1 is wrapped Containing DMRS port { 1,2,3,4 }, port set 2 includes DMRS port { 5,6,7,8 }, then can be quantified as 4 layers and 8 layers.In addition, institute It states in DMRS number of plies information, continuous DMRS days of serial number when the DMRS numbers of plies can also be the sequence from small to large in a CDM group The integral multiple of line port number can be quantified as 2 layers and 4 layers for example, for CDM groups { 1,2,5,7 } and { 3,4,6,8 }.These Information, can allow receiving terminal identify which resource unit be by this receiving terminal DMRS occupy, which resource unit be by CDM multiplexing other receiving terminals DMRS occupy, remaining resource unit be for the relevant data transmission of this receiving terminal, Therefore, this receiving terminal carries out data demodulation on corresponding resource unit.

The quantized value for why using the orthogonal transmission number of plies, is because if to indicate that receiving terminal specifically transmits the number of plies, example If you need to indicate respectively transmission the number of plies { 1,2,3,4 }, need 2 bits to be indicated, and will transmission the number of plies { 1,2,3,4 } into Row quantization, such as be quantized into the transmission number of plies 4 upwards, be either quantized into the transmission number of plies 1 downwards or indicate that the group passes with 2 or 3 The defeated number of plies { 1,2,3,4 }, it indicates that the quantized value for transmitting the number of plies only needs a bit that can indicate, such as indicates to pass with 0 The quantized value 4 of the defeated number of plies, therefore instruction expense can be reduced.

Based on above-mentioned principle, the embodiment of the present application DMRS instruction information can indicate the quantized value of the orthogonal transmission number of plies, one Kind mode is recessive instruction, and another way is that dominant mode is indicated.

In recessive indication scheme, the quantized value of the above-mentioned orthogonal transmission number of plies configures in DMRS configuration information tables, and indicates Information is indicated using the DMRS instruction information (value) in DMRS configuration information tables；The DMRS configuration information tables can be with Similar in LTE, for example, the antenna port number (Antenna ports) in LTE, scrambler indicates (scrambling Identity) and transmission the number of plies instruction (number of layers indication), it can also include DMRS port number, Port index, sequence generate at least one of information, CDM types, on this basis, the quantized value of the addition transmission number of plies.It should DMRS configuration information tables can be stored on transmitting terminal and receiving terminal simultaneously, and transmitting terminal sends instruction information, Ying Li to receiving terminal Solution, transmitting terminal to receiving terminal be by send original DCI signalings in LTE (due to continuing to use the signaling of LTE, the DCI signalings Instruction information may not be named as, but it can be with indicated speed matching scheme), receiving terminal by the signaling simultaneously obtained from The number of plies is always transmitted in oneself port information and the quantization of system, in conjunction with two information, calculates the port that other receiving terminals use. That is, receiving terminal identifies which resource unit is used to the DMRS transmission of this receiving terminal, which resource unit is to be used for CDM Multiplexing other receiving terminals DMRS transmission, remaining resource unit be for the relevant data transmission of this receiving terminal, because This, this receiving terminal carries out data demodulation on corresponding resource unit.

In explicit signaling indication scheme, the correspondence of the quantized value of above-mentioned instruction information and the orthogonal transmission number of plies is logical It crosses independently of the DMRS configuration information tables in LTE and exists, namely the correspondence between instruction information and the quantized value for transmitting the number of plies Relationship is not lain in DMRS configuration information tables, therefore transmitting terminal and receiving terminal in addition to preserving DMRS configuration information tables respectively Except, it also preserves instruction information respectively and transmits the correspondence allocation list of the quantized value of the number of plies (or the information table can lead to RRC is crossed to be configured), which exists independently of DMRS configuration information tables, and transmitting terminal passes through explicit signaling Mode, rate configuration instruction information is sent to receiving terminal, receiving terminal is matched using the instruction information as indexing in correspondence The quantized value that the corresponding transmission number of plies is searched in table is set, receiving terminal is by the quantized value of the transmission number of plies and the DMRS configuration informations Table is combined, and identifies which resource unit is used to be occupied by the DMRS of this receiving terminal, which resource unit is answered by CDM The DMRS of other receiving terminals is occupied, remaining resource unit be for the relevant data transmission of this receiving terminal, therefore, This receiving terminal carries out data demodulation on corresponding resource unit.

It should be noted that the instruction information of identical value can correspond to the quantized value of the different transmission numbers of plies, thereby indicate that Correspondence between information and the quantized value for transmitting the number of plies can also be indicated by individual signaling.

It should be understood that for dominant indication scheme, the transmission number of plies of quantization is received by indicating information instruction End will receive two signalings, and one is the DMRS DCI signalings in LTE, and one is the finger for being transmitted for transmitting current quantisation the number of plies Show information (herein and being properly termed as rate matching signalings).

It is understood that in the scheme of either recessive instruction or dominant instruction, above-mentioned DMRS indicates information hair Can be sent in a manner of independent signaling when being sent to receiving terminal, can also be carry sent in downlink signaling, such as It sends, is not limited thereto in Downlink Control Information DCI.

In one implementation, the DMRS instructions information is determined whether to send by the number of code word (codeword). Indicate that information, 2 codeword do not send the signaling, reason then for example, triggering signaling if 1 codeword to send DMRS It is, there are the scene of SU and MU in 1 codeword when, but 2 codeword must be SU scenes, in 2 codeword Under corresponding SU-MIMO (single user multiple-input multiple-output, SU-MIMO) scene, transmitting End, such as base station are only communicated with a receiving terminal (terminal), and information (RS, the control of the terminal are only transmitted in running time-frequency resource Signaling, data etc.).At this point, terminal can directly learn oneself according to the information (such as port of oneself, number of plies information) of oneself DMRS the positions RE, these RE are avoided in data decoding.Therefore the rate matching in SU and there is no DMRS Problem.

The second aspect of the embodiment of the present application additionally provides a kind of instruction of DMRS rate-matcheds and method of reseptance comprising：

Using 2 TRP of the non-QCL groups under 2PDCCH scenes, the silent non-QCL groups oneself used of each TRP Carry out data transmission after the corresponding resource units of DMRS, one of TRP can there are one or multiple QCL groups DMRS；This Kind behavior can be default action；

In 1PDCCH scenes, then needs transmitting terminal to send DMRS to receiving terminal and indicate that information, DMRS instructions information refer to Show the corresponding resource units of DMRS in one or more QCL groups that this transmitting terminal uses.

Under 2PDCCH scenes or 1PDCCH scenes, transmitting terminal notifies receiving terminal that also there are two types of modes：

The first, transmitting terminal sends DMRS to receiving terminal and indicates information, and under 2PDCCH scenes, DMRS indicates information instruction The transmission number of plies of current quantisation in the workable DMRS port of the TRP, or under 1PDCCH scenes, assisted in current system Total number of plies that the TRP of work can be used.

Second, under 2PDCCH scenes, for different DMRS patterns, receiving terminal can use DMRS patterns corresponding Include the DMRS configuration information tables of DMRS instruction information, carries out rate-matched, it should be noted that DMRS patterns here are Refer to the DMRS patterns that the DMRS port in QCL groups workable for the TRP is constituted.Or under 1PDCCH scenes, the TRP of cooperation can The DMRS patterns constituted with the multiple QCL groups DMRS ports used.

It should be noted that multiple DMRS configuration information tables can also be an information summary table, an information Summary table supports maximum port number, and multiple DMRS configuration information tables are the subsets of the information summary table, and son is chosen from the information summary table Collection can support that port number or DMRS patterns either high-level signaling are selected according to maximum.

That in DMRS instruction information instructions is the DMRS in this realization method of DMRS antenna port sets information Antenna port set information refers to the practical DMRS numbers of plies scheduled in current system, indicates occupied DMRS antenna ports Group state, such as port set 1 be { 1,2,3,4 }, port set 2 be { 5,6,7,8 }, it is assumed that base station according to DMRS port number from it is small to Big sequential scheduling, when it is 4 layers to dispatch the number of plies, instruction port set 1 is occupied, and when more than 4 layers, instruction port set 1 and 2 is occupied With.Here example is only provided, specific port numbers grouping and base station scheduling are not construed as limiting.

DMRS instruction information instruction be the DMRS antenna ports this realization side of code division multiplexing CDM group informations In formula, code division multiplexing CDM group informations include the ports the CDM group information for the DMRS antenna ports that the non-receiving terminal itself uses, Or the DMRS antenna port groups letter that the DMRS antenna ports group information that uses of receiving terminal itself and the non-receiving terminal itself use The sum of breath.

Wherein, the non-self ports the DMRS CDM group information used, may include at least one of following state：

1, the positions all DMRS RE can be with transmission data (SU)；

2, the positions all DMRS RE are occupied (MU), and such situation includes that receiving terminal uses 1 (or 2) DMRS port CDM Group, and 2 other (or 1) occupied or receiving terminal use 2 DMRS port CDM groups, and it is other 1 it is occupied.

3, one larger in 2 port sets at the non-reception ends Mute itself (MU, UE use 1 port set)；

4, one smaller in 2 port sets at the non-reception ends Mute itself (MU, UE use 1 port set)；

It should be understood that " larger, smaller ":It can be defined as between port numbers maximum or minimum in 2 CDM port sets The comparison relativeness of non-UE itself DMRS port groups (utilize)

In specific implementation, for state 3 and 4, there can not also be the comparison procedure of " larger, smaller ", for example can be The port numbers for including in port set, or the number for port set.

The non-self ports the DMRS CDM group information used can bind (DMRS configuration/ with DMRS types Type 1/A or 2/B), the CDM group numbers binding (2 or 3) for including with pattern either.

The mode for the DMRS port group state that this non-reception end itself of instruction uses can be further reduced instruction overhead, And this mode can also support several scenes, versatility preferable.For example, can directly support 1PDCCH NC-JT, dynamic TDD；2PDCCH NC-JT, it is less for the change of existing instruction.

On the other hand, the embodiment of the present application provides transmitting terminal, which includes：

Processor, transmitting terminal determine and current DMRS transmission plans pair from multigroup demodulated reference signal DMRS configuration informations The DMRS configuration informations answered, and DMRS is obtained according to DMRS configuration informations and indicates information；Every group of DMRS configuration information include A plurality of DMRS configuration informations；Transceiver sends the DMRS instructions information.

On the other hand, the embodiment of the present application provides a kind of transmitting terminal, including：

Processor generates demodulated reference signal DMRS and indicates information；The DMRS instruction information can support port with maximum Number or DMRS patterns correspond to or DMRS Configuration Types correspond to；

Transceiver sends the DMRS instructions information.

On the other hand, this application provides a kind of receiving terminals, including：

Transceiver receives the demodulated reference signal DMRS that transmitting terminal is sent and indicates information；The DMRS instructions information is hair It penetrates end to be obtained according to DMRS configuration informations, the DMRS configuration informations are transmitting terminals according to current DMRS transmission plans from multigroup It is determined in demodulated reference signal DMRS configuration informations；Every group of DMRS configuration information includes a plurality of DMRS configuration informations；

Processor indicates information according to the DMRS that transceiver receives, obtains DMRS configuration informations and aid demodulation number According to.

In another aspect, this application provides another transmitting terminals, including：

Processor generates demodulated reference signal DMRS and indicates information；The DMRS instructions information, which is used to indicate, can be used for holding Carry the resource not occupied by DMRS in the resource of DMRS；

Transceiver sends the DMRS instructions information.

In another aspect, this application provides another receiving terminals, including：

Transceiver indicates information for receiving demodulated reference signal DMRS；The DMRS instructions information is used to indicate available The resource not occupied by DMRS in the resource of carrying DMRS；

Processor, for according to the DMRS indicate information, not by DMRS occupy resource on carry out data demodulation.

When applied to uplink scene, above-mentioned apparatus can be terminal；When applied to downlink transfer scene, which can To be the network equipment, which can be a kind of base station, can also be a kind of control node.

This network side equipment may include as the improved system to the peer device in classical wireless telecommunication system And equipment.This advanced or next-generation equipment may be embodied in evolution wireless communication standard (such as long term evolution (LTE)).

On the other hand, the embodiment of the present application provides a kind of base station, which, which has, realizes above method base station in practice The function of behavior.The function can also execute corresponding software realization by hardware realization by hardware.The hardware Or software includes one or more modules corresponding with above-mentioned function.

In a possible design, the structure of base station includes processor and transceiver, and the processor is configured as Base station is supported to execute corresponding function in the above method.The transceiver is used to support the communication between base station and terminal, to end End sends information or signaling involved in the above method, receives the information transmitted by base station or instruction.May be used also the base station To include memory, the memory preserves the necessary program instruction in base station and data for being coupled with processor.

When applied to uplink scene, which can be the network equipment；When applied to downlink transfer scene, the device It is terminal, which has the function of realizing terminal behavior in above method design.The function can be by hardware realization, eventually The structure at end includes transceiver and processor.Corresponding software realization can also be executed by hardware.The hardware or software Including one or more modules corresponding with above-mentioned function.The module can be software and/or hardware.

In another aspect, the embodiment of the present application also provides a kind of processing unit, including processor and interface；

The processor is processor in aforementioned transmitting terminal or receiving terminal；

The processing unit can be a chip, and the processor can also pass through software by hardware to realize It realizes, when passing through hardware realization, which can be logic circuit, integrated circuit etc.；When by software come when realizing, The processor can be a general processor, be realized by reading the software code stored in memory, changing memory can With integrated in the processor, it can be located at except the processor, be individually present.

Another aspect, the embodiment of the present application provide a kind of communication system, which includes the base station described in above-mentioned aspect And terminal.It optionally, can also be including the control node in above-described embodiment.

In another aspect, the embodiment of the present application provides a kind of computer storage media, for being stored as used in above-mentioned base station Computer software instructions, it includes for executing the program designed by above-mentioned aspect.

In another aspect, the embodiment of the present application provides a kind of computer storage media, for being stored as used in above-mentioned terminal Computer software instructions, it includes for executing the program designed by above-mentioned aspect.

Implement the method and apparatus provided by the present application for sending demodulated reference signal, and obtains the side of demodulated reference signal Method and device are matched by multiple DMRS configuration informations with the several scenes of NR, and higher level data transmission can be met Demand, and multiple information table supports switching, can further decrease instruction expense.

The embodiment of the present invention in a first aspect, provide a kind of data transmission method for uplink, the method is for passing through multiple demodulation Reference signal DMRS port sends multiple data flows to a receiving device, wherein the multiple DMRS port adheres at least two separately A port set meets accurate co-located QCL relationships, any in each port set between each DMRS port in each port set DMRS port meets the co-located Non-QCL relationships of non-standard with any DMRS port in other any port sets；The multiple DMRS Port is assigned at least two transmitting end equipments, and the DMRS port that each transmitting end equipment is assigned to belongs to the same port Group, the method includes：

In a kind of possible design, a code word is mapped as what the transmitting end equipment was assigned to by each transmitting end equipment The corresponding data flow of DMRS port；

The corresponding data flow of DMRS port that the transmitting end equipment is assigned to is sent to described connect by each transmitting end equipment Receiving end equipment.

In a kind of possible design, at least two transmitting end equipment is at least two pieces of days of same transmitting end equipment Line panel,

One code word is mapped as the corresponding data of DMRS port that the transmitting end equipment is assigned to by each transmitting end equipment Specifically, for each aerial panel, a code word is mapped as the aerial panel and is assigned to stream by the same transmitting end equipment The corresponding data flow of DMRS port；

The corresponding data flow of DMRS port that the transmitting end equipment is assigned to is sent to described connect by each transmitting end equipment Receiving end equipment specifically, each aerial panel the corresponding data flow of DMRS port that the aerial panel is assigned to is sent to it is described Receiving device.

In a kind of possible design, one code word is mapped as the transmitting end equipment point in each transmitting end equipment Before the corresponding data flow of DMRS port being fitted on, the method further includes one at least two transmitting end equipment Transmitting end equipment sends an instruction information to the receiving device, and the instruction information is used to indicate as the receiving device The multiple DMRS port of distribution.

In a kind of possible design, one code word is mapped as the transmitting end equipment point in each transmitting end equipment Before the corresponding data flow of DMRS port being fitted on, the method further includes, and the same transmitting end equipment is to the receiving terminal Equipment sends an instruction information, and the instruction information is used to indicate the multiple ends DMRS distributed for the receiving device Mouthful.

In the various aspects and various possible designs of the embodiment of the present invention, the quantity of the multiple data flow is (also It is the quantity of the multiple DMRS port) it is less than or equal to 4, but can also be without being limited thereto.For example, skill provided in an embodiment of the present invention The quantity that art scheme can be applied to data flow is less than or equal to 4 scene, and the quantity for being not applied to data flow is more than 4 field Scape.Further, in scene of the quantity of data flow less than or equal to 4, technical solution provided in an embodiment of the present invention can With the scene (quantity of i.e. the multiple data flow is 3 and/or 4) for being 3 and/or 4 applied to the quantity of data flow, without applying The scene for being 2 in the quantity of the multiple data flow.Certain technical solution provided in an embodiment of the present invention can not also be by above-mentioned The limitation of scene.

According to a second aspect of the embodiments of the present invention, a kind of data receiver method is provided, including：

Multiple data flows are received by multiple DMRS ports, wherein the multiple DMRS port adheres at least two ports separately Group meets accurate co-located QCL relationships, any DMRS port in each port set between each DMRS port in each port set Meet the co-located Non-QCL relationships of non-standard with any DMRS port in other any port sets；

For each port set at least two port set, receiving device is according in the multiple DMRS port The data flow corresponding to DMRS port in the port set, recovers a code word.

In a kind of possible design, before receiving the multiple data flow, the method further includes：

An instruction information is received, the instruction information is used to indicate the multiple DMRS port.

In a kind of possible design, the quantity (quantity of namely the multiple DMRS port) of the multiple data flow Less than or equal to 4, but can also be without being limited thereto.For example, technical solution provided in an embodiment of the present invention can be applied to data flow Quantity is less than or equal to 4 scene, and the quantity for being not applied to data flow is more than 4 scene.Further, in data flow Quantity less than or equal to 4 scene in, technical solution provided in an embodiment of the present invention can be applied to data flow quantity be 3 and/ Or 4 scene (quantity of i.e. the multiple data flow be 3 and/or 4), and the quantity for being not applied to the multiple data flow is 2 Scene.Certain technical solution provided in an embodiment of the present invention can not also be limited by above-mentioned scene.

According to a third aspect of the embodiments of the present invention, a kind of data receiver method is provided, including：

Multiple data flows are received by multiple DMRS ports, wherein the multiple DMRS port belongs to same port group, and Meet accurate co-located QCL relationships between each DMRS port in the port set；

According to the multiple data flow, a code word is recovered.

In a kind of possible design, the quantity of the multiple data flow is less than or equal to 4.

In above-mentioned various aspects and various possible designs, the instruction information is Downlink Control Information DCI.

Above-mentioned data flow is called data Layer.

According to a fourth aspect of the embodiments of the present invention, a kind of transmitting end equipment is provided, the transmitting end equipment be used for extremely Few other transmitting end equipments send multiple data by multiple demodulated reference signal DMRS ports to a receiving device Stream, wherein the multiple DMRS port adheres at least two port sets separately, meets between each DMRS port in each port set Accurate co-located QCL relationships, any DMRS port in each port set meet with any DMRS port in other any port sets The non-co-located Non-QCL relationships of standard；The multiple DMRS port is assigned to the transmitting end equipment and described at least one other Transmitting end equipment, each transmitting end equipment in the transmitting end equipment and at least one other transmitting end equipment are assigned to DMRS port belong to the same port set, the transmitting end equipment includes：

Mapping block, for a code word to be mapped as the corresponding data of DMRS port that the transmitting end equipment is assigned to Stream；

Transmitting module, the corresponding data flow of DMRS port for the transmitting end equipment to be assigned to are sent to the reception End equipment.

In a kind of possible design, the transmitting end equipment and at least one other transmitting end equipment are same hair At least two pieces of aerial panels of end equipment are penetrated,

The mapping block is set in the same transmitting end equipment, and the mapping block is specifically used for, for every One code word is mapped as the corresponding data flow of DMRS port that the aerial panel is assigned to by one aerial panel；

The transmitting module is set in the same transmitting end equipment, and the transmitting module is specifically used for, every day The corresponding data flow of DMRS port that the aerial panel is assigned to is sent to the receiving device by line panel.

In a kind of possible design, the transmitting module is additionally operable to, and an instruction information is sent to the receiving device, The instruction information is used to indicate the multiple DMRS port distributed for the receiving device.

According to a fifth aspect of the embodiments of the present invention, a kind of receiving device is provided, including：

Receiving module, for receiving multiple data flows by multiple DMRS ports, wherein the multiple DMRS port adheres to separately At least two port sets, meet accurate co-located QCL relationships between each DMRS port in each port set, in each port set Any DMRS port meets the co-located Non-QCL relationships of non-standard with any DMRS port in other any port sets；

Recovery module is used for for each port set at least two port set, according to the multiple ends DMRS The data flow corresponding to DMRS port in mouthful in the port set, recovers a code word.

In a kind of possible design, the receiving module is additionally operable to, and receives an instruction information, and the instruction information is used for Indicate the multiple DMRS port.

According to a sixth aspect of the embodiments of the present invention, a kind of receiving device is provided, including：

Receiving module, for receiving multiple data flows by multiple DMRS ports, wherein the multiple DMRS port belongs to Same port group, and meet accurate co-located QCL relationships between each DMRS port in the port set；

Recovery module, for according to the multiple data flow, recovering a code word.

In the various aspects and each design of the embodiment of the present invention, above-mentioned instruction information can be Downlink Control Information DCI。

According to a seventh aspect of the embodiments of the present invention, a kind of data transmission method for uplink is provided, the method is used for by multiple Demodulated reference signal DMRS port sends multiple data flows to receiving device, wherein the multiple DMRS port adhere to separately to Lack two port sets, accurate co-located QCL relationships, appointing in each port set are met between each DMRS port in each port set One DMRS port meets the co-located Non-QCL relationships of non-standard with any DMRS port in other any port sets；It is the multiple DMRS port is assigned to same transmitting end equipment, for each port set, the method includes：

One code word is mapped as the DMRS in the multiple DMRS port in the port set by the transmitting end equipment Data flow corresponding to port；

The data flow is sent to the receiving device by the transmitting end equipment.

In a kind of possible design, the method further includes that the transmitting end equipment is sent to the receiving device One instruction information, the instruction information are used to indicate the multiple DMRS port distributed for the receiving device.

According to a eighth aspect of the embodiments of the present invention, a kind of transmitting end equipment is provided, the transmitting end equipment is for passing through Multiple demodulated reference signal DMRS ports send multiple data flows to a receiving device, wherein the multiple DMRS port point Belong at least two port sets, meet accurate co-located QCL relationships between each DMRS port in each port set, in each port set Any DMRS port and other any port sets in any DMRS port meet the co-located Non-QCL relationships of non-standard；It is described more A DMRS port is assigned to the transmitting end equipment, and the transmitting end equipment includes：

Mapping block, for for each port set, a code word being mapped as being in the multiple DMRS port and is somebody's turn to do The data flow corresponding to DMRS port in port set；

Transmitting module, for the data flow to be sent to the receiving device.

In a kind of possible design, the method further includes that the transmitting module is additionally operable to the receiving device An instruction information is sent, the instruction information is used to indicate the multiple DMRS port distributed for the receiving device.

On the whole, an embodiment of the present invention provides a kind of data transmission method for uplink, and the method is for passing through multiple demodulation Reference signal DMRS port sends multiple data flows to a receiving device, wherein the multiple DMRS port adheres at least two separately A port set meets accurate co-located QCL relationships, any in each port set between each DMRS port in each port set DMRS port meets the co-located Non-QCL relationships of non-standard with any DMRS port in other any port sets, for each port Group, the method includes：

One code word is mapped as the number corresponding to the DMRS port in the multiple DMRS port in the port set According to stream；

The data flow is sent to the receiving device.

In a kind of possible design, the method further includes sending an instruction information to the receiving device, described Instruction information is used to indicate the multiple DMRS port distributed for the receiving device.

In a kind of possible design, above-mentioned multiple DMRS ports can distribute to same transmitting end equipment；It can also divide The polylith aerial panel of the same transmitting end equipment of dispensing, wherein the DMRS port that every piece of aerial panel is assigned to belongs to same port Group；Can also distribute to for for same receiving device service (such as based on CoMP (Coordinated Multi-Point, it is more Point cooperation) the relevant technologies) multiple transmitting end equipments, the DMRS port that each transmitting end equipment is assigned to belongs to same port Group.In addition, above-mentioned DMRS port can also distribute to one or more transmitting end equipment using other modes, for example, but it is unlimited In the various feasible combinations of above-mentioned several ways.

Correspondingly, the embodiment of the present invention additionally provides a kind of data receiver method, including：

Multiple data flows are received by multiple DMRS ports, wherein the multiple DMRS port belongs to same port group, or Person adheres at least two port sets separately, and accurate co-located QCL relationships, each port are met between each DMRS port in each port set Any DMRS port in group meets the co-located Non-QCL relationships of non-standard with any DMRS port in other any port sets；

For each port set in the same port group or at least two port sets, receiving device is according to The data flow corresponding to DMRS port in multiple DMRS ports in the port set, recovers a code word.

The quantity of the multiple data flow is less than or equal to 4.

It can be appreciated that in receiving device side, receiving device may not need the above-mentioned multiple DMRS ports of concern and come from One transmitting end equipment, or the polylith aerial panel from a transmitting end equipment, or come from multiple transmitting end equipments.

QCL (Quasi-Co-Location, accurate co-located) is commonly used in describing similar large-scale decline and similar Direction in space (such as, but not limited to beam direction) etc., therefore non-standard is co-located (Non-Quasi-Co-Location, Non-QCL) Commonly used in describing different large-scale declines and different direction in spaces etc..Related content in relation to QCL and Non-QCL Clear description has been carried out in the prior art, therefore details are not described herein again.

In actual transmissions, information bit (bit) be typically with the form of transmission block (Transport Block, TB) into What row divided, and a transmission block can be a code word (codeword, CW), the content in relation to TB and CW can refer to existing Technology

In general, the DMRS port that system is supported can be divided into multiple port sets, each DMRS in each port set Meet QCL relationships between port, any DMRS port in each port set and any ends DMRS in other any port sets Mouth meets Non-QCL relationships.When multiple transmitting end equipments are that same receiving device services, distributed for each transmitting end equipment DMRS port come from same port group.For example, DMRS port 0~9 can be divided into 2 port sets, respectively port set 1 With port set 2, wherein DMRS port 0~4 belongs to port set 1, and DMRS port 5~9 belongs to port set 2.For transmitting end equipment When distributing DMRS port, any number of DMRS port in port set 1 can be distributed to transmitting end equipment, can also will held Any number of DMRS port in mouth group 2 distributes to transmitting end equipment.In addition, either multiple transmitting end equipments are same connect Receiving end device service, or single transmitting end equipment are the receiving device service, for the distribution of the same transmitting end equipment DMRS port can come from identical port set, can be from different port sets.For example, when coming from identical port set When, can by above-mentioned port set 1 port 1 and port 2 distribute to the transmitting end equipment；When from different port sets, The transmitting end equipment can be distributed in port 8~9 in port 2~3 and above-mentioned port set 2 in above-mentioned port set 1.It is not difficult Understand, when the DMRS port distributed for same transmitting end equipment is from different port sets, which passes through difference The wireless transmission that DMRS port in port set carries out will have Non-QCL characteristics, such as with different large-scale declines, or Person is directed toward different direction in spaces.When the DMRS port distributed for same transmitting end equipment comes from identical port set, the hair QCL characteristics will be had by penetrating the wireless transmission that end equipment is carried out by the DMRS port in the identical port set, such as with phase As large-scale decline, or be directed toward similar direction in space.

The above-mentioned related content that DMRS port is divided into multiple port sets can refer to the prior art, for example, can be Before transmitting end equipment and receiving device manufacture, it is arranged in these equipment in advance, it can also be by transmitting end equipment by DMRS The grouping situation prior notice of port passes through RRC (Radio to receiving device, such as, but not limited to transmitting end equipment Resource Control, wireless heterogeneous networks) message, in such as, but not limited to receiving device access to communication networks, or Regularly, notice is to receiving device.It, can be according to grouping situation in the case where DMRS port is divided into multiple port sets (such as various application scenarios, such as CoMP) are needed to distribute DMRS port for transmitting end equipment with specific.

Multiple transmitting end equipments can be multiple transmitting end equipments, or the polylith day of a same transmitting end equipment Line panel.Above-mentioned transmitting end equipment can be such as but not limited to base station.Above-mentioned receiving device can be such as but not limited to Terminal.

Code word and goes out from data stream recovery the process of code word to the mapping process of data flow, can refer to the prior art.

When multiple transmitting end equipments service for a receiving device simultaneously, above-mentioned instruction information can be by multiple transmittings A transmitting end equipment in end equipment is sent, and in this case, the transmitting end equipment for sending above-mentioned instruction information can be with Referred to as service equipment, other transmitting end equipments are properly termed as cooperative equipment.

Above-mentioned data flow is properly termed as data Layer again, can usually be obtained by carrying out layer mapping to code word, specific mistake Journey can refer to the prior art.

Step in the above method can be executed by one or more processor, and having can be by one or more A processor executes program to execute.

The function of modules in above-mentioned transmitting end equipment and receiving device can be integrated at one or more It is executed on reason device, program can also be executed by one or more processor to execute.

Description of the drawings

In order to illustrate more clearly of the technical solution of the embodiment of the present application, will make below to required in the embodiment of the present application Attached drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present application, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.

Fig. 1 is a kind of schematic diagram for pilot patterns that the prior art provides；

Fig. 2 is a kind of schematic diagram of resource unit provided by the embodiments of the present application；

A kind of schematic diagram for system architecture that Fig. 3 is applicable in by technical solution provided by the embodiments of the present application；

Fig. 4 is a kind of structural schematic diagram of base station provided by the embodiments of the present application；

Fig. 5 is a kind of structural schematic diagram of terminal provided by the embodiments of the present application；

Fig. 6 is the interaction schematic diagram of a kind of DMRS instruction and method of reseptance provided by the embodiments of the present application；

Fig. 7 is the schematic diagram of DMRSpattern provided by the embodiments of the present application a kind of；

Fig. 8 is the schematic diagram of another DMRS pattern provided by the embodiments of the present application；

Fig. 9 is the schematic diagram of another DMRS pattern provided by the embodiments of the present application；

Figure 10 is the schematic diagram of another DMRS pattern provided by the embodiments of the present application；

Figure 11 is the schematic diagram of another DMRSpattern provided by the embodiments of the present application；

Figure 12 is the schematic diagram of another DMRSpattern provided by the embodiments of the present application；

Figure 13 is the schematic diagram of another DMRSpattern provided by the embodiments of the present application；

Figure 14 is the schematic diagram of another DMRSpattern provided by the embodiments of the present application；

Figure 15 is the schematic diagram of another DMRSpattern provided by the embodiments of the present application；

Figure 16 is the schematic diagram of another DMRSpattern provided by the embodiments of the present application；

Figure 17 is the schematic diagram of another DMRSpattern provided by the embodiments of the present application；

Figure 18 is the schematic diagram of another DMRSpattern provided by the embodiments of the present application；

Figure 19 is the schematic diagram of another DMRSpattern provided by the embodiments of the present application；

Figure 20 is MU-MIMO schematic diagram of a scenario in LTE system；

Figure 21 is the another interaction flow signal of a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Figure；

Figure 22 is an a kind of schematic diagram of a scenario of DMRS indicating means and method of reseptance provided by the embodiments of the present application；

Figure 23 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application A corresponding schematic diagram；

Figure 24 is a kind of another schematic diagram of a scenario of DMRS indicating means and method of reseptance provided by the embodiments of the present application；

Figure 25 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram.

Figure 26 is a kind of another schematic diagram of a scenario of DMRS indicating means and method of reseptance provided by the embodiments of the present application；

Figure 27 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram.

Figure 28 is a kind of another schematic diagram of a scenario of DMRS indicating means and method of reseptance provided by the embodiments of the present application；

Figure 29 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram.

Figure 30 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram.

Figure 31 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram.

Figure 32 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram.

Figure 33 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram.

Figure 34 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram.

Figure 35 is another application scenarios signal in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Figure；

Figure 36 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram；

Figure 37 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram；

Figure 38 is an a kind of schematic diagram of a scenario of DMRS indicating means and method of reseptance provided by the embodiments of the present application.

Figure 39 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram；

Figure 40 is instruction information and pattern in a kind of DMRS indicating means and method of reseptance provided by the embodiments of the present application Corresponding another schematic diagram；

Figure 41 is the module diagram of transmitting terminal provided by the embodiments of the present application；

Figure 42 is the module diagram of receiving terminal provided by the embodiments of the present application；

Figure 43 is the schematic diagram of transmitting terminal provided by the embodiments of the present application or receiving terminal.

Specific implementation mode

First, the relational language being referred to herein simply is introduced, is understood with helping reader：

1), resource unit (resource unit)

Similar in LTE standard RB and RB to (RB pair), a kind of money is provided in some embodiments of the present application Source unit, the resource unit can carry out the base unit of resource allocation as dispatch terminal, can be used for describing a variety of ginsengs Examine the arrangement mode of signal.

Resource unit can be by a time interval (time on frequency domain on continuous multiple subcarriers and time domain Interval, TI) composition.In different scheduling processes, the size of resource unit may be the same or different.Wherein, here TI can be the Transmission Time Interval (transmission time interval, TTI) in LTE system, can also be symbol The short TTI of the short TTI of grade or the big subcarrier spacing in radio frequency system, can also be the slot or miniature time slots in 5G systems (mini-slot) etc..The application does not limit this.

Optionally, a resource unit may include one or more RB, in addition one or more RB pair etc. may be used also To be half of RB etc..In addition it can be other running time-frequency resources, the application is to this without limiting.Wherein, a RB pair It is made of a subframe on 12 continuous subcarriers and time domain on frequency domain.On a subcarrier and time domain on frequency domain A symbol composition running time-frequency resource be a resource element (resource element, RE), as shown in Figure 2.Wherein, scheme RB pair in 2 are by 14 symbol (numbers 0 on the 12 continuous subcarriers (number is 0~11) and time domain on frequency domain ~13) it forms.In Fig. 2, abscissa indicates that time domain, ordinate indicate frequency domain.It should be noted that including expression in the application The attached drawing of time-domain resource, which is all based on, to be illustrated for RB pair shown in Fig. 2, it will be appreciated by those skilled in the art that , it is without being limited thereto when specific implementation.It should be understood that " symbol " in the application can include but is not limited to it is following any： Orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol, general filtering are more Carrier wave (universal filtered multi-carrier, UFMC) signal, filter bank multi-carrier (filter-band Multi-carrier, FBMC) symbol, broad sense Frequency Division Multiplex (generalized frequency-division Multiplexing, GFDM) symbol etc..

2), DMRS port group

" DMRS port group " involved in the application is introduced in order to which technical solution provided by the present application is explicitly described A logical concept, specifically, being one introduced in order to which pilot patterns provided herein or its modification is explicitly described A logical concept.It should be understood that in actual implementation, base station and terminal can not execute that be grouped this to DMRS port dynamic Make, is designed such as pilot patterns described in this application or its modification by any way, the application protection domain should all be belonged to Within.

One DMRS port group may include one or more DMRS ports.In the application, each end in DMRS port group Identical running time-frequency resource is multiplexed by CDM modes between the corresponding DMRS of mouth, such as orthogonal mask (orthogonal cover Code, OCC), cyclic shift (cyclic shift, CS) or cycle phase rotation (cyclic phase rotations) etc. Method, or the combination of a variety of methods above, such as OCC+CS.Related multiple reference signals are by CDM mode multiplexing time-frequency resources Technical solution clear description has been carried out in the prior art, repeats no more herein.

3) the DMRS port port that system is supported

The DMRS port that system is supported, it is believed that be DMRS port workable for base station.In actual implementation, base station may Use some or all of its support DMRS port dispatch terminal.Maximum supported orthogonal port number, that is, the system for referring to or The maximum value of the orthogonal port numbers of the supported DMRS in base station.

In the application, illustrated so that the number for the DMRS port that system is supported is 4,6,8,12 as an example.

4) other terms

Term " multiple " herein refers to two or more.

Term " first " herein, " second " etc. do not limit its sequence merely to distinguish different objects It is fixed.For example, the first set of symbols and the second set of symbols do not carry out its sequencing just for the sake of distinguishing different set of symbols It limits.

The terms "and/or", only a kind of incidence relation of description affiliated partner, indicates that there may be three kinds of passes System, for example, A and/or B, can indicate：Individualism A exists simultaneously A and B, these three situations of individualism B.In addition, herein Middle character "/", it is a kind of relationship of "or" to typically represent forward-backward correlation object.

Technical solution provided by the present application is introduced below in conjunction with the accompanying drawings.

Technical solution provided by the present application can be applied to various communication systems, such as current 2G, 3G, 4G communication systems, And future evolution network, such as 5G communication systems.For example, LTE system, third generation partner program (3rd generation Partnership project, 3GPP) relevant cellular system etc. and other such communication systems.In particular, Ke Yiying For in 5G NR systems.

It should be noted that may include Machine To Machine (machine to machine, M2M), equipment in 5G standards To machine (devoice to machine, D2M), macro micro- communication, enhanced mobile Internet (enhance mobile Broadband, eMBB), ultrahigh reliability (ultra reliable&low latency are communicated with ultralow time delay Communication, uRLLC) and magnanimity Internet of Things Network Communication (massive machine type communication, ) etc. mMTC scenes, these scenes can include but is not limited to：Communication scenes between terminal and terminal, between base station and base station Communication scenes, the communication scenes etc. between base station and terminal.Technical solution provided by the embodiments of the present application can also be applied to In the scenes such as the communication between communication between terminal and terminal or base station and base station in 5G communication systems.

Technical solution provided by the embodiments of the present application can be applied in system architecture as shown in Figure 3, the system architecture In may include base station 100 and one or more terminals 200 for being connect with base station 100.

In one example, base station 100 can be realized by structure as shown in Figure 4.

Wherein, base station 100 can be the equipment that can be communicated with terminal 200.Base station 100 can be relay station or access point Deng.Base station 100 can be global system for mobile communications (global system for mobile communication, GSM) Or base transceiver station (the base in CDMA (code division multiple access, CDMA) network Transceiver station, BTS), can also be wideband code division multiple access (wideband code division multiple Access, WCDMA) in NB (NodeB), can also be the eNB or eNodeB (evolutional NodeB) in LTE.Base station 100 can also be the wireless controller under cloud Radio Access Network (cloud radio access network, CRAN) scene. Base station 100 can also be the network equipment in the following 5G networks or the network equipment in the PLMN networks of the following evolution；It can be with It is wearable device or mobile unit etc..

Terminal 200 can be user equipment (user equipment, UE), access terminal, UE units, the stations UE, movement station, Mobile station, remote station, remote terminal, mobile device, UE terminals, terminal, wireless telecom equipment, UE agencies or UE devices etc..It connects It can be cellular phone, wireless phone, session initiation protocol (session initiation protocol, SIP) electricity to enter terminal It talks about, wireless local loop (wireless local loop, WLL) is stood, personal digital assistant (personal digital Assistant, PDA), the handheld device with wireless communication function, computing device or be connected to radio modem its Its processing equipment, mobile unit, wearable device, the terminal in the following 5G networks or the end in the PLMN networks of the following evolution End etc..

The common hardware framework of base station 100 illustrates.As shown in figure 4, base station may include indoor baseband processing unit (building baseband unit, BBU) and far-end RF module (remote radio unit, RRU), RRU and antenna feeder system System (i.e. antenna) connection, BBU and RRU can dismantle use as needed.It should be noted that during specific implementation, base station 100 is also Other common hardware frameworks may be used, and be not intended to be limited to common hardware framework shown in Fig. 4.

By taking terminal 200 is mobile phone as an example, the common hardware framework of mobile phone is illustrated.As shown in figure 5, mobile phone can wrap It includes：Radio frequency (radio Frequency, RF) circuit 110, memory 120, other input equipments 130, display screen 140, sensor 150, the components such as voicefrequency circuit 160, I/O subsystems 170, processor 180 and power supply 190.Those skilled in the art can manage Solution, the structure of mobile phone shown in fig. 5 do not constitute the restriction to mobile phone, may include more than diagram or less component, It either combines certain components and either splits certain components or different components arrangement.It will be appreciated by those skilled in the art that aobvious Display screen 140 belongs to user interface (user Interface, UI), and display screen 140 may include display panel 141 and touch panel 142.And mobile phone may include than illustrating more or less component.Although being not shown, mobile phone can also include camera, indigo plant The function modules such as tooth module or device, details are not described herein.

Further, processor 180 respectively with RF circuits 110, memory 120, voicefrequency circuit 160, I/O subsystems 170, And power supply 190 is all connected with.I/O subsystems 170 connect with other input equipments 130, display screen 140, sensor 150 respectively It connects.Wherein, RF circuits 110 can be used for receiving and sending messages or communication process in, signal sends and receivees, particularly, by base station After downlink information receives, handled to processor 180.Memory 120 can be used for storing software program and module.Processor 180 The software program and module of memory 120 are stored in by operation, to execute the various function application and data of mobile phone Processing.Other input equipments 130 can be used for receiving the number or character information of input, and generate with the user setting of mobile phone with And the related key signals input of function control.Display screen 140 can be used for showing information input by user or be supplied to user's The various menus of information and mobile phone can also receive user's input.Sensor 150 can be optical sensor, motion sensor Or other sensors.Voicefrequency circuit 160 can provide the audio interface between user and mobile phone.I/O subsystems 170 are used for controlling The external equipment of input and output, external equipment may include other equipment input controller, sensor controller, display control Device.Processor 180 is that the control centre of mobile phone 200 is passed through using the various pieces of various interfaces and connection whole mobile phone Operation executes the software program and/or module being stored in memory 120, and calls the number being stored in memory 120 According to the various functions and processing data of execution mobile phone 200, to carry out integral monitoring to mobile phone.Power supply 190 (such as battery) is used It powers in above-mentioned all parts, it is preferred that power supply can be logically contiguous by power-supply management system and processor 180, to The functions such as management charging, electric discharge and power consumption are realized by power-supply management system.

Technical solution provided by the present application can be used in single carrier transmission scene, can be used for multi-carrier transmission scene In, it is readily applicable to multiple waveforms mixed transport scene；It can be applied in uplink scene, downlink can also be applied to In transmitting scene or the scene of uplink and downlink simultaneous transmission.

The method of transmission DMRS provided by the present application is illustrated below, wherein the method for transmitting DMRS may include The method that transmitting terminal sends the method for DMRS and receiving terminal obtains DMRS.

As shown in fig. 6, for a kind of method of transmission DMRS provided by the present application.This method may include：

S101：Transmitting terminal determination from multigroup demodulated reference signal DMRS configuration informations is corresponding with current DMRS transmission plans DMRS configuration informations, and according to DMRS configuration informations obtain DMRS indicate information；Every group of DMRS configuration information includes more DMRS configuration informations.

Wherein, multiple DMRS configuration informations can be presented in the form of DMRS configuration information tables, and a kind of mode is with multiple The form of independent table is presented, and can also be the subset for belonging to an information summary table.

S102：Transmitting terminal sends DMRS by running time-frequency resource and indicates information.

S103：Receiving terminal receives the DMRS and indicates information.

S104：Receiving terminal indicates information according to the DMRS of reception, carries out channel estimation or aid demodulation data.

Wherein, the running time-frequency resource for carrying DMRS may include one or more symbols in the time domain, can on frequency domain To include one or more subcarriers.

If the technical solution is applied in uplink scene, transmitting terminal can be terminal, and receiving terminal can be base station. If the technical solution is applied in downlink transfer scene, transmitting terminal can be base station, and receiving terminal can be terminal.

Maximum in the corresponding DMRS configuration informations of the different DMRS transmission plans can support that orthogonal port number is different.

Orthogonal port number can be supported for different maximums, different DMRS configuration informations can be configured, for example, for most It can support that orthogonal port number is 4 greatly, orthogonal port number is 6, and orthogonal port number is 8, the MIMO scene that orthogonal port number is 12, point Corresponding DMRS configuration informations are not configured, which is the orthogonal ports DMRS for allowing receiving terminal to know that it can be used Number, sequence configuration, multiplex mode etc., to carry out correct data decoding.

In a kind of realization method of first aspect, DMRS configuration informations can be presented by protocol conventions table, Its specific implementation form can be Downlink Control Information (downlink control information, DCI) table (table), Multiple DCI table at least contain a kind of different DMRS configuration informations；DMRS transmission plans corresponding with DMRS configuration informations It is to be sent by high-level signaling such as wireless heterogeneous networks (radio resource control, RRC) signaling, certainly Can also other configurations Wire Parameters corresponding with scene, such as frequency point, carrier wave interval, frame structure etc..DMRS indicates information Pass through DCI signalings or media access control control unit (media access control control element, MAC CE it) sends.

In one implementation, it in described information table, is designed according to a point row are carried out according to orthogonal port combination, such as small In or equal to 4 layers of transport layer orthogonal port combination, with the orthogonal port combination point row design more than 4 layers of transport layer；

Further include the instruction information of total orthogonal port number in the DMRS configuration informations, which can indicate reality The quantized value for all orthogonal port numbers that all orthogonal port numbers or actual capabilities being likely to occur occur.All orthogonal ends The quantized value of mouth number can be the orthogonal number of plies information of DMRS or instruction information is gathered in DMRS antenna orthogonals port, or The CDM group informations of DMRS antenna orthogonals port, or the information according to the generation of CDM sizes.It should be understood that total orthogonal port Number is identical as total orthogonal DMRS transmission number of plies.

The quantized value for why using the DMRS orthogonal transmission numbers of plies, is because if to indicate the specific orthogonal transmission of receiving terminal The number of plies, for example, instruction the orthogonal transmission number of plies { 1,2,3,4 }, need 4 bits to be indicated, and by the orthogonal transmission number of plies 1, 2,3,4 } it is quantized into a value, such as is quantized into the orthogonal transmission number of plies 4 upwards, or is quantized into the orthogonal transmission number of plies 1 downwards, or Person indicates that the reorganization orthogonal transmission number of plies { 1,2,3,4, } then indicates that the quantized value of the orthogonal transmission number of plies only needs one with 2 or 3 Bit can be indicated, such as indicate the quantized value 4 of the orthogonal transmission number of plies with 0, therefore can reduce instruction expense.

It should be noted that multiple DMRS configuration information tables can be an information summary table, an information is total Table supports maximum that can support that orthogonal port number, multiple DMRS configuration information tables are the subsets of the information summary table, from the information summary table Middle selection subset can support that orthogonal port number or DMRS patterns either high-level signaling are selected according to maximum.

It will be described below transmission DMRS provided by the present application and obtain the specific implementation process of DMRS.

Embodiment one

Devise the table of multiple DMRS configuration informations, referred to as DMRS configuration information tables in the present embodiment one, each DMRS configuration information tables and maximum can support orthogonal port number to be associated with, and either for different DMRS pattern or be directed to Different DMRS Configuration Types design different DMRS configuration information tables；Maximum can support orthogonal port number or DMRS Pattern DMRS Configuration Types can indicate DMRS transmission plans；Before being transmitted, it is configured according to different pattern Information is selected or is switched in different DMRS configuration information tables.

As shown in fig. 7, the DMRS configuration information tables are so that in SU or MU-MIMO, single terminal (UE) maximum can be supported just It is the DMRS configuration information tables of 4 designs to hand over port number.

Table 1

4 ports DMRS of maximum

Wherein DMRS indicates that information or index are indicated with Value；As Value=0, indicate that terminal supports transport layer The number of (being indicated with order Rank in table) is 1, and corresponding orthogonal port index (port index) is transport layer 1, end Slogan is 0；For another example, DMRS indicate information Value=7 when, indicate terminal support transport layer (Rank) be 4, it is corresponding just It is 0-3 (port 0-3) to hand over port index (port index).

Port combinations listed by table as shown in Table 1 can cover 4port and following all configurations substantially, wherein Reserved can be used for additionally combining (combination), to increase dispatching flexibility, although tune can be met by having arranged combination Degree demand.

DMRS configuration information tables shown in table 1 are suitable for orthogonal DMRS and realize maximum 4 streams/layer data transmission or Fig. 7 pairs Answer pattern (2 symbols of config.1 shown in 1 symbols of config.1 or right-hand component as shown in left-hand component but Using time domain repetition, e.g., TD-OCC { (1,1), (1,1) })

DMRS configuration information tables in the present embodiment are right according to LTE Table Designs (that is, dividing row with codeword number) The value values answered need the instruction expense of 3bit.

It should be understood that the port index in the DMRS configuration information tables are a kind of representation, it is only for example It is bright, it can also be according to actual demand with other digital representations.

As shown in table 2, which is so that in SU or MU-MIMO, single terminal (UE) maximum can be supported just It is the DMRS configuration information tables of 6 designs to hand over port number.

Table 2

6 ports DMRS of maximum

The wherein instruction information of DMRS configuration informations or index is indicated with Value；For example, the instruction letter of DMRS configuration informations When ceasing Value=0, indicate that terminal supports that the number of transport layer (Rank) is 1, corresponding orthogonal port index (port Index it is) 0；When the instruction information Value=10 of DMRS configuration informations, the terminal indicated supports of transport layer (Rank) Number is 3, and corresponding orthogonal port index (port index) is 3~5；It should be noted that orthogonal port index here It is only for example, specific orthogonal port numbers can be with other digital representations.

Port combinations listed by table as shown in Table 2 can cover 6port and following all configurations substantially, wherein Reserved can be used for additionally combining (combination), to increase dispatching flexibility, although tune can be met by having arranged combination Degree demand.

DMRS configuration information tables as shown in Table 2 are suitable for orthogonal DMRS and realize maximum 6 streams/layer data transmission or Fig. 8 Corresponding pattern (2 symbols of config.1 shown in 1 symbols of config.1 or right-hand component as shown in left-hand component But using time domain repetition, e.g., TD-OCC { (1,1), (1,1) }).

DMRS configuration information tables in the present embodiment are right according to LTE Table Designs (that is, dividing row with codeword number) The value values answered need the instruction expense of 4bit.

As shown in table 3, which is so that in SU or MU-MIMO, single terminal (UE) maximum can be supported just It is the DMRS configuration information tables of 8 designs to hand over port number.

Table 3

8 ports DMRS of maximum

The instruction information of wherein DMRS configuration informations is indicated with Value；For example, the instruction information of DMRS configuration informations When Value=0, indicate that terminal supports that the number of transport layer (Rank) is 1, corresponding orthogonal port index (port Index it is) 0；For another example, as Value=15, indicate that terminal supports that the number of transport layer (Rank) is 4, it is corresponding orthogonal Port index (port index) is 4~7；It should be noted that orthogonal port index here is only for example, it is specific orthogonal Port numbers can be with other digital representations.

Port combinations listed by table as shown in table 3 can cover 8port and following all configurations substantially, wherein Reserved can be used for additionally combining (combination), to increase dispatching flexibility, although tune can be met by having arranged combination Degree demand.

DMRS configuration information tables as shown in table 3 are suitable for orthogonal DMRS and realize maximum 8 streams/layer data transmission or Fig. 9 Corresponding pattern (2 symbols of config.1).

As shown in table 4, which is so that in SU-MU-MIMO, single terminal (UE) maximum can be supported orthogonal Port number is the DMRS configuration information tables of 12 designs.

Table 4

12 ports DMRS of maximum

The instruction information of wherein DMRS configuration informations is indicated with Value；For example, the instruction information of DMRS configuration informations When Value=0, indicate that terminal supports that the number of transport layer (Rank) is 1, corresponding orthogonal port index (port Index it is) 0；For another example as the instruction information Value=24 of DMRS configuration informations, indicate that terminal supports transport layer (Rank) Number be 4, corresponding orthogonal port index (port index) be 8~11.It should be noted that orthogonal port here Index is only for example, and specific orthogonal port numbers can be with other digital representations.

Port combinations listed by table as shown in table 4 can cover 12port and following all configurations substantially, wherein Reserved can be used for additionally combining (combination), to increase dispatching flexibility, although tune can be met by having arranged combination Degree demand.

DMRS configuration information tables as shown in table 4 are suitable for orthogonal DMRS and realize maximum 12 streams/layer data transmission or figure 10 corresponding pattern (2 symbols of config.2).

DMRS configuration information tables in the present embodiment are right according to LTE Table Designs (that is, dividing row with codeword number) The value values answered need the instruction expense of 5bit.

Implement embodiment shown in above-mentioned 1~table of table 4, orthogonal port number design can be supported corresponding for each maximum DMRS configuration information tables can meet the needs of different scenes in NR systems.Such as the extremely low time delay communication of high reliability The pattern of (Ultra-Reliable and Low-Latency Communication, URLLC) scene and be not only used for The pattern for enhancing mobile broadband (Enhanced Mobile Broadband, eMBB), for other different pattern weights The new design for considering table.

Multiple DMRS configuration information tables are devised in the present embodiment and can also be DMRS pattern Configuration Types, referred to as DMRS Configuration Types (configuration type) are come the different DMRS configuration information tables that design, before being transmitted, according to Different configuration type information is selected or is switched in different information tables.

Configuration type be divided to be two kinds, corresponding DMRS configuration information tables distinguish it is as shown in table 3 most Big 8port (configuration type1) and maximum 12port (configuration type2) two as shown in table 4 Table is identical, and details are not described herein.DMRS configuration information tables shown in 1~table of table 4 and different DMRS pattern are corresponding, It is either corresponding with the supported orthogonal port number of maximum that system is supported or with different DMRS Configuration Types, it is corresponding Pattern or maximum supported 4,6,8,12 or DMRS of orthogonal port number Configuration Types etc. can be by explicit signalings such as RRC, MAC CE or DCI instruction, can also other configurations Wire Parameters corresponding with scene, such as frequency point, carrier wave interval, frame structure Deng.

Embodiment two

In the present embodiment, divide description DMRS configuration information tables to row design method, divides row mode different from LTE, this It in embodiment, is divided not based on codeword number, but orthogonal port number can be supported according to certain ratio based on maximum Example is divided or be will be greater than orthogonal port number and is divided into two row of left and right more than certain numerical value and less than or equal to certain numerical value, Or the transmission number of plies (i.e. UE RANK) according to receiving terminal carries out a point row.

As shown in table 5, it is illustrated so that maximum can support orthogonal port number to be equal to 12 as an example, the left side of the information table One row are that orthogonal port number is less than or equal to 8, and it is that orthogonal port number is more than 8 that the right one, which arranges,.

Table 5

Divide some proportion point row of the row according to total port numbers

Total number of plies or config.2 2symbol pattern, ratio value 2/3

What the signal of table 5 was can support support support orthogonal number/2 pair port information table to carry out a point row with maximum, this It is a kind of signal, in the embodiment of the present application, there can also be others to divide row mode, be the biography according to UE as shown in table 6 and table 7 For the defeated number of plies (RANK) come the division carried out, principle is exactly as far as possible so that the line number for the effective information that table or so two arranges is equal Weighing apparatus, storage overhead is further decreased with this.

Table 6

6 ports DMRS of maximum

Table 7

4 ports DMRS of maximum

Embodiment three

In the present embodiment, multiple DMRS configuration information tables are integrated in a total information table, can be supported just according to maximum The transmission number of plies or pattern or high-level signaling is handed over to be selected, specifically as shown in table 8-0.

Table 8-0

The maximum orthogonality port numbers that DMRS configuration information tables shown in table 8-0 are supported are 12, other port numbers, such as 4, 6,8 corresponding DMRS configuration informations are the subset of the total information table, when carrying out the selection of DMRS configuration informations, Ke Yiyi It can support that orthogonal port numbers are either bound with pattern or according to the instruction of high-level signaling, such as RRC signaling according to maximum, from Corresponding sublist is selected in the total information table.For example, it is that 4, value0-13 is corresponded to always just that value0-7, which corresponds to total orthogonal port numbers, It is that always orthogonal port numbers are that always orthogonal port numbers are 12 to 8, value0-28 correspondences to 6, value0-19 correspondences to hand over port numbers.

The method for implementing above-mentioned transmission DMRS provided by the present application, by designing multiple DMRS configuration information tables, Ke Yiwei NR DMRS port instructions reduce expense.

In addition, making the specific implementation that multiple DMRS configuration information tables are integrated in a total information table, can also incite somebody to action The DMRS configuration informations of identical DMRS Configuration Types are designed into a summary table, are selected by DMRS symbolic information.

Specifically, symbol letter that can be comprising leading (Front-loaded, FL) DMRS in DMRS configuration information tables Breath, such as DMRS symbol numbers, wherein table 8-1 corresponds to FL DMRS configuration type 1, and table 8-2 corresponds to FL DMRS Configuration type 2, i.e. every table correspond to different FL DMRS type.In addition, table can also include CDM The status information (State of CDM group) of group, the status information of the CDM groups may be used as rate matching information.

Symbol numbers (symbol number) one in table 8-1 and table 8-2 arrange, and correspond to 1 symbol and 2 symbols respectively Type 1 FL DMRS.In the embodiment of the present application, 1 symbol and 2 symbol FL of identical FL DMRS configuration type The DMRS port instruction packet of DMRS contained in same table, advantage be can by DCI instruction forms not Same state, to realize the switching between dynamic 1 symbol and the FL DMRS of 2 symbols.

In addition, given below is only a kind of example, the state of symbol numbers is 1 and 2, corresponds to 1 symbol FL DMRS respectively With 2 symbol FL DMRS.In one implementation, symbol numbers can be expressed as 0 and 1, and such as 0 corresponds to 1 symbol FL DMRS, and 1 corresponds to 2 Symbol FL DMRS or 1 symbolic indication are single symbol and 2 symbolic indications are double symbols.Specific implementation In can be there are many representation method, the embodiment of the present application does not limit.

In another implementation, the row of symbol number mono- can not be added in DMRS configuration informations table, but Implicit indication is directly carried out by value values.It is removed for example, can arrange symbol number mono- in table 8-1 and 8-2, and its He does not change element.At this point, transmitting terminal still can complete the symbols of 1 symbol FL DMRS and 2 by indicating value values to receiving terminal The switching at runtime of number FL DMRS.

For example, value=18 contains the DMRS port number more than 3 in table 8-1, and the FL DMRS type1 of 1 symbol Port numbers are 0-3, and such receiving terminal, which is known that, has invoked 2 symbol DMRS patterns.In a kind of implementation method, receiving terminal and transmission It is corresponding 1 symbol FL DMRS patterns that end, which can pre-define certain value, and certain value are corresponding 2 symbol FL DMRS figures In sample, such as table 8-1, value 0-10 can be pre-defined and correspond to 1 symbol FL DMRS, value>11 correspond to 2 symbol FL DMRS, at this point, for identical Scheduling content, value=0 corresponds to 1 symbol FL DMRS, and value=11 corresponds to 2 symbol FL DMRS.By indicate value 0 and value 11, receiving terminal know currently call be 1 symbol FL DMRS patterns or 2 symbol Number FL DMRS patterns.

Table 8-1 considers the port combination example of the Configuration Type 1 of symbolic number

Table 8-2 considers the port combination example of the Configuration Type 2 of symbolic number

In a kind of implementation method, transmitting terminal, such as network side equipment can in certain scheduling only the one of schedule table The subset of part, i.e. sub-table or table, to save DCI expenses.

In one implementation, the selected of sub-table can carry out dominant configuration by RRC signaling, i.e., believed by RRC It enables and indicates the DMRS symbolic information, the corresponding DMRS Configuration Types of 1 symbol or the corresponding DMRS of 2 symbols described in dynamic dispatching match Set type.

For example, for table 8-2, RRC signaling can indicate the corresponding tables of 1 symbol FL DMRS of activation, such as value in 8-2 0-22 (i.e. symbol number=1), or whole table of instruction can use, (i.e. such as row all in table 8-2 Symbol number=1 and symbol number=2).In the specific implementation, the signal deployment of RRC can be in several ways Realize, for example, can use independent RRC signaling carry out configuration or with other instruction FL DMRS information RRC signaling bind into The recessive instruction of row.

For dominant instruction, can be configured by an independent RRC signaling.For example set1, set2 are configured in RRC (such as set1 corresponds to the state of symbol number=1 to corresponding predefined certain state sets, and set2 corresponds to complete in table Portion's state), or directly instruction before certain states (value) be activated (such as in 8-1 by ' 1010/ binary system ' indicate before 11 value 0-10 are used, or directly indicate some value value, and all value states of the front are activated), Or configuration on/off states are enabled that (such as off represents only symbol number=1 and used, and on represents whole table Used), or indicate independent instruction to each value in table using bitmap, the methods of specific RRC configurations this In do not limit.

In another realization method, the enabled of sub-table can be bound with other RRC signalings, such as can be with RRC middle fingers Show the Wire Parameters of FL DMRS maximum symbol numbers, is such as bound with DL-DMRS-max-len or UL-DMRS-max-len.Below Example is carried out with DL, when DL-DMRS-max-len=1, it is 1 to represent the maximum symbol numbers of FL DMRS, i.e., system is only The FL DMRS of 1 symbol are called, at this point, the corresponding states of 1 symbol FL DMRS in table 8-2 are used only in receiving terminal and transmitting terminal, such as Value=0-22.When DL-DMRS-max-len=2, it is 2 to represent the maximum symbol numbers of FL DMRS, i.e. system can To call the FL DMRS of the FL DMRS patterns and 2 symbols of 1 symbol, at this point, receiving terminal and transmitting terminal can use 1 in table 8-2 Symbol and the corresponding states of 2 symbol FL DMRS, i.e. state in whole table can use.

In addition, (DL-DMRS-max-len in such as RRC signaling or UL- when FL DMRS maximum symbol numbers differences When DMRS-max-len is equal to 1 or 2), corresponding DMRS port scheduling DCI Signalling lengths are different or number of bits is different, DCI Domain is different.

Example IV

The specific implementation of various NR scenes method provided by the present application will be described is applied in the present embodiment.Specifically , in irrelevant joint transmission (Non-coherent joint transmission, NC-JT) 2PDCCH or 1PDCCH Under scape, multiple DMRS configuration information tables bound with pattern are set for two transmission points (TRPs).

The present embodiment selection port from different DMRS port groups (port group) forms port Combinations, base station needs these port combinations being indicated to scheduling UE by a DCI in single PDCCH scenes, and two These port combinations can be indicated to UE by two DCI in PDCCH scenes.The division of DMRS port group and Pattern configuration and port mapping scheme have relationship.As there may be two by configuration type 1 Kind port mapping schemes, as seen in figures 11 or 12, and there may be three kinds of port by configuration type 2 Mapping schemes, decibel such as Figure 13, Figure 14, shown in Figure 15.

Above-mentioned various port mapping modes are respectively according to frequency division multiplexing or advanced after first progress port code division multiplexing Code division multiplexing obtains after the frequency division multiplexing of row port.A variety of different port mapping can obtain different DMRS port groupings, Grouping can be only positioned at the port of group code division multiplexing in the same group according to for progress.

If the DMRS of Figure 11 is grouped into the grouping of { (0,2,4,6), (1,3,5,7) } or each group subsets, such as (0,2), (1,3)}。

The DMRS of Figure 12 is grouped into the grouping of { (0, Isosorbide-5-Nitrae, 6), (2,3,5,7) } or each group subsets.

DMRS shown in Figure 13 be grouped into { (0,1,6,7), (2,3,4,5,8,9,10,11) } or (0,1,6,7,4,5, 10,11), (2,3,8,9) } or { (0,1,6,7,2,3,8,9), (4,5,10,11) } or each group subsets grouping.

The DMRS of Figure 14 be grouped into { (0,3,6,9), (Isosorbide-5-Nitrae, 7,10,2,5,8,11) } or (0,3,6,9, Isosorbide-5-Nitrae, 7,10), (2,5,8,11) } or { (Isosorbide-5-Nitrae, 7,10), (0,3,6,9,2,5,8,11) } or each group subsets grouping.

The DMRS of Figure 15 be grouped into { (0,1,6,9), (2,3,7,10,4,5,8,11) } or (0,1,6,9,4,5,8,11), (2,3,7,10) } or { (4,5,8,11), (0,1,6,9,2,3,7,10) } or each group subsets grouping.

Current embodiment require that port is selected to form port combinations, thus each difference from different group Port groupings can then form different port combinations.It is with the one of which port mapping schemes under various configurations below Example designs DMRS configuration information tables.

For example, if Figure 16 is NC-JT pattern and port mapping schematic diagrames, corresponding co-located (the quasi co- of standard Location, QCL) grouping situation be TRP1 use port { 0,1,6,9 } form port set, TRP2 using port 2,3,4, 5,7,8,10,11}。

To support the 1PDCCH scenes of NC-JT as shown in figure 16, the DMRS configuration information tables that table 9 is illustrated to illustrate in table 4 DMRS configuration information tables on the basis of, left column increases the correspondence row of value=25~32 value, and right row increase value values =4~18 correspondence row, particular content is referring to table 9.

Table 9

12 ports DMRS of maximum (pattern config2-2symbol), single PDCCH

To support the 2PDCCH scenes of NC-JT as shown in figure 16, the DMRS configuration information tables that table 10 is illustrated to illustrate in table 4 DMRS configuration information tables on the basis of, left column increases the correspondence row of value=25~32 value, and right row increase value values =4~7 correspondence row, particular content is referring to table 10.

Table 10

12 ports DMRS of maximum (pattern config2-2symbol), 2PDCCHs

Figure 17 is the another schematic diagram of the corresponding pattern and port mapping of NC-JT, the corresponding co-located (quasi of standard Co-location, QCL) grouping situation be TRP1 use port { 0,2,4,6 } form port set, TRP2 using port 1,3, 5,7}。

To support the 1PDCCH scenes of NC-JT as shown in figure 17, the DMRS configuration information tables that table 11 is illustrated to illustrate in table 3 DMRS configuration information tables on the basis of, left column increases the correspondence row of value=16~19 value, and right row increase value values =4~10 row, particular content is referring to table 11.

Table 11

8 ports DMRS of maximum (pattern config1-2symbol), single PDCCH

To support the 2PDCCH scenes of NC-JT as shown in figure 17, the DMRS configuration information tables that table 12 is illustrated to illustrate in table 3 DMRS configuration information tables on the basis of, left column increases the correspondence row of value=16~23 value, and particular content is referring to table 12.

Table 12

8 ports DMRS of maximum (pattern config1-2symbol), 2PDCCHs

Figure 18 is the another schematic diagram of the corresponding pattern and port mapping of NC-JT, the corresponding co-located (quasi of standard Co-location, QCL) grouping situation be TRP1 use port { 0,1 } form port set, TRP2 using port 2,3,4, 5}。

To support the 1PDCCH scenes of NC-JT as shown in figure 18, the DMRS configuration information tables that table 13 is illustrated to illustrate in table 2 DMRS configuration information tables on the basis of, right arrange increases the correspondence rows of value=12~15 value.Left column increases value values =2 correspondence row, particular content is referring to table 13.

Table 13

6 ports DMRS of maximum (pattern config2-1symbol), single PDCCH

To support the 2PDCCH scenes of NC-JT as shown in figure 28, the DMRS configuration information tables that table 14 is illustrated to illustrate in table 2 DMRS configuration information tables on the basis of, left column increases the correspondence row of value=12 value, and specific content is referring to table 14.

Table 14

6 ports DMRS of maximum (pattern config2-1symbol), two PDCCH

Figure 19 is the another schematic diagram of the corresponding pattern and port mapping of NC-JT, the corresponding co-located (quasi of standard Co-location, QCL) it is grouped the port set that situation uses port { 0,2 } composition for TRP1, TRP2 uses port { 1,3 }.

To support the 1PDCCH scenes of NC-JT as shown in figure 19, the DMRS configuration information tables of table 15-1 signals to show in table 1 On the basis of the DMRS configuration information tables of meaning, right to arrange the correspondence row for increasing value=8 value, particular content is referring to table 15-1.

Table 15-1

4 ports DMRS of maximum (pattern config1-1symbol), single PDCCH

To support the 2PDCCH scenes of NC-JT as shown in figure 19, the DMRS configuration information tables of table 15-2 signals to show in table 1 On the basis of the DMRS configuration information tables of meaning, left column increases the correspondence row of value=8~9 value, and specific content is referring to table 15-2。

Table 15-2

4 ports DMRS of maximum (pattern config1-1symbol), two PDCCH

According to any of previous embodiment one to example IV embodiment, for different NR scenes or transmission demand When, transmitting terminal selects suitable DMRS configuration informations wherein, and obtains DMRS instruction letters according to the DMRS configuration informations of selection Receiving terminal is sent to after breath.

Receiving terminal is when receiving the value values for indicating DMRS instruction information, according to the orthogonal biography represented by the value values The defeated number of plies either orthogonal port numbers or not by DMRS occupy resource, on corresponding running time-frequency resource position demodulation reference believe Number.

It is dispatched for the ease of base station, under MU-MIMO scenes, for a specific receiving terminal, DMRS port can be first From a CDM scheduling in group, then across CDM group scheduling, this scheduling rule can be referred to as the preferential scheduling rules of CDM again. The state for considering in DMRS port instruction forms while including SU and MU, particularly, the scheduling for SU-MIMO, different tune Metric then has different benefit.Example is presented below to be specifically described.Consider following port mapping sequence：

For 1 symbol DMRS type 1, CDM groups 1 include that port is { 0,1 }, and CDM groups 2 include that port is { 2,3 }；

For 2 symbol DMRS type 1, it is { 0, Isosorbide-5-Nitrae, 5 } that CDM groups 1, which include port, CDM groups 2 include port for 2,3, 6,7}；

For 1 symbol DMRS type 2, CDM groups 1 include that port is { 0,1 }, and CDM groups 2 include that port is { 2,3 }, CDM Group 3 is { 4,5 } comprising port.

For 2 symbol DMRS type 2, it is { 0,1,6,7 } that CDM groups 1, which include port, CDM groups 2 include port for 2,3, 8,9 }, it is { 4,5,10,11 } that CDM groups 3, which include port,.

For SU, transmitting terminal can be allocated the DMRS port of receiving terminal according to following rule.It below will specifically It is bright, wherein it is worth noting that, specific scheduling rule is only provided here, when DMRS mapping rulers change, in example DMRS port number distribution may change, but scheduling rule will not change.

CDM priority schedulings：For receiving terminal, DMRS port is preferentially dispatched from a CDM group, when CDM group middle-end slogans After being fully occupied, then dispatched from another port set.The program has the advantages that SU scheduling is identical with MU scheduling rule.Under Face provides specific example for DMRS type, and following example can be expressed as in DMRS port schedule table (such as 8-1,8-2) Certain a line (value).

For 1 symbol DMRS type 1, when receiving terminal be called 2 layers when, scheduling port can be 0,1 (or 2,3), i.e., It is in the same CDM groups to dispatch port；When receiving terminal be called 3 layers when, scheduling port can be 0,1,2, i.e. CDM groups 1 are complete Then ministry dispatching is dispatching the port 2 in CDM groups 2.It can be presented as such as downlink status information in specific table 16-1.

Table 16-1DMRS Class1 examples

value	number of co-scheduled CDM groups	UE Rank	ports	symbol number
					X	1	2	0,1	1
Y	2	3	0,1,2	1

For 2 symbol DMRS type 1, when receiving terminal be called 4 layers when, scheduling port can be 0, Isosorbide-5-Nitrae, 5, i.e., It is first from the same CDM scheduling in groups to dispatch port；When receiving terminal be called 5 layers when, scheduling port can be 0, Isosorbide-5-Nitrae, 5,2, I.e. CDM groups 1 are all dispatched, then the port in scheduling CDM groups 2.It can be presented as such as downlink shape in specific such as table 16-2 State information：

Table 16-2 DMRS Class1 examples

For 1 symbol DMRS type 2, when receiving terminal be called 3 layers when, scheduling port can be 0,1,2, i.e., CDM groups 1 are fully occupied, then the port in scheduling CDM groups 2；When receiving terminal be called 5 layers when, scheduling port can be 0,1,2,3,4, i.e. CDM groups 1,2 are fully occupied, and the port in CDM groups 3 are then dispatched, as shown in table 16-3：

2 example of table 16-3 DMRS types

For 2 symbol DMRS type 2, when receiving terminal be called 3 layers when, scheduling port can be 0,1,6, i.e., CDM groups 1 are occupied, i.e., are preferentially scheduled from CDM groups 1；When receiving terminal be called 5 layers when, scheduling port can be 0,1, 6,7,2, i.e. CDM groups 1 are all dispatched, then the port in scheduling CDM groups 2, as shown in table 16-4：

2 example of table 16-4 DMRS types

FDM priority schedulings：For receiving terminal, DMRS port dispatches group scheduling across CDM first, when each CDM groups have end After mouth is scheduled, then it is scheduled from first CDM group again, then proceedes to across CDM group scheduling.Its main thought be so that Scheduled DMRS port number is average as possible in each CDM groups.Such as when 3 ports are called, for type 2,3 It is each in CDM groups to call a port.The program has the characteristics that the DMRS port that each CDM groups are used when SU scheduling is average, So that power is average in each CDM groups.Port numbers sequence given below is merely illustrative to more fully understand, specific real Now, the sequential write of port numbers such as 0,2,1,3,4 can be written as 0,1,2,3,4 there is no limiting

For 1 symbol DMRS type 1, when receiving terminal be called 2 layers when, scheduling port can be 0,2, i.e., preferentially across CDM group schedulings port；When receiving terminal be called 3 layers when, scheduling port can be 0,1,2, i.e., CDM groups 1,2 by it is each scheduling 1 hold Mouthful, then recall the port in CDM groups 1.As shown in table 16-5：

Table 16-5 DMRS Class1 examples

For 2 symbol DMRS type 1, when receiving terminal be called 2 layers when, scheduling port can be 0,2, i.e., preferentially Across CDM group scheduling；When receiving terminal be called 5 layers when, scheduling port can be 0,2,1,3,4, i.e., scheduled DMRS port exists The interior mean allocation as possible of CDM groups.As shown in table 16-6：

Table 16-6 DMRS Class1 examples

For 1 symbol DMRS type 2, when receiving terminal be called 3 layers when, scheduling port can be 0,2,4, i.e., CDM groups 1,2,3 are fully occupied 1 DMRS port；When receiving terminal be called 4 layers when, scheduling port can be that 0,2,4,1 be CDM groups 1,2,3 are occupied used, then reschedule the port in CDM groups 1 again.As shown in table 16-7：

2 example of table 16-7 DMRS types

For 2 symbol DMRS type 2, when receiving terminal be called 3 layers when, scheduling port can be 0,2,4,；When When receiving terminal is 8 layers called, scheduling port can be 0,1,2,3,4,5,6,8.As shown in table 16-8：

Table 16-8 DMRS Class1 examples

It, can be to the number of the CDM groups of FDM priority schedulings when specific implementation in addition, for scheduling scheme preferential FDM It is defined, to promote spectrum efficiency when SU scheduling.For example, for 3 CDM groups in DMRS type 2, can limit FDM priority schedulings are carried out for wherein 2 CDM groups when SU.At this point, for type 2, when 6 layers of (or 6 ends DMRS Mouthful) it is called when, scheduling port can be 0,1,2,3,6,8, i.e. CDM groups 1 and 2 are scheduled, when 8 layers scheduled, dispatching terminal Mouth can be called 3 ports in 0,1,2,3,6,7,8,9, i.e. CDM groups 1 and 2.The benefit of this scheme is that CDM groups 3 can be with For transmission data, spectrum efficiency is promoted.As shown in table 16-9：

2 example of table 16-9 DMRS types

Contiguous port number is dispatched：For receiving terminal, DMRS port is carried out continuously tune successively according to the size of DMRS port number Degree.The unrelated program has the characteristics that Table Design simplicity.It is 0-2,5 layers of corresponding DMRS port as 3 floor correspond to DMRS port number Number it is 0-4,8 layers of corresponding DMRS port are 0-7.

When it is implemented, the above scheduling rule can be combined, supplements or occur simultaneously.Such as such as simultaneously Include the table of 1 symbol and 2 symbol DMRS type 1 (or type 2), it is preferential to may exist CDM priority schedulings, FDM in table The state of scheduling, contiguous port number scheduling, to increase the flexibility of system call.

In a kind of implementation method, the scheduling number of plies identical for identical symbol number can include simultaneously in table The two states of CDM priority schedulings and FDM priority schedulings increase and dispatch flexible or spectrum efficiency.As shown in table 16-10：

Table 16-10 DMRS Class1 examples

Alternatively, in one implementation, can be adjusted using contiguous port number for being more than the particular schedule number of plies in table The rule of degree is less than the particular schedule number of plies and uses FDM CDM priority scheduling rules.As shown in table 16-11：

Table 16-11 DMRS Class1 examples

value	number of co-scheduled CDM groups	UE Rank	ports	symbol number
					X	3	3	0,2,4	2
Y	2	8	0-7	2

Or different scheduling rule or more can be used in table for 1 symbol or 2 symbol FL DMRS configurations The combination of kind rule.Such as type 21 symbol using elder generation FDM scheduling rule, and for 2 symbols of type 2 for Two CDM groups are using the scheduling rule of elder generation FDM, the spectrum efficiency that SU is dispatched when promoting 2 symbol with this.As shown in table 16-12：

2 example of table 16-12 DMRS types

It should be noted that the rule for the SU scheduling that above example only provides, does not limit specific port mapping System, it is possible to understand that right, for specific different port mapping sequence, identical scheduling rule can obtain different be scheduled DMRS port number.If 1 inner port of CDM groups is { 0, Isosorbide-5-Nitrae, 5 }, when 2 inner port of CDM groups is { 2,3,6,7 }, dispatched according to FDM excellent First principle, 6 layers of corresponding port numbers are 0,1,2,3,4,6；And when 1 inner port of CDM groups is { 0,1,4,6 }, 2 inner port of CDM groups For { 2,3,5,7 } when, according to FDM dispatching priority principles, 6 layers of corresponding port numbers are 0,1,2,3,4,5；It should be understood that In the case of different port mapping sequences, the technological essence of both the above port numbers scheduling is identical.

In conclusion in DMRS configuration information tables provided by the embodiments of the present application, CDM group informations can be added, or The symbolic information or RMI information of DMRS is to carry out rate-matched.

It is explained in detail below.Table 17-1 and table 17-2 is that corresponding different DMRS configure (DMRS Configuration type) DMRS port instruction form (DMRS port assignment table), wherein table 16-1 Corresponding DMRS type 1, table 17-2 corresponds to DMRS type 2.Here table 17-1 and 17-2 is divided into two according to codeword number Row to save bit expenses, in specific implementation can design table (schedule) otherwise structure, it is only for examples.

In the present embodiment, it is assumed that the specific DMRS port mapping ruler of DMRS type 1 and type 2 is as follows：

In specific implementation, there can be a different DMRS port mapping rulers, in the present embodiment only for ease of illustration.Specifically For different mapping rulers, the rule dispatched in table will not change.

It can be seen that being configured for each DMRS, the symbol numbers information (symbol of DMRS can be added in table Number) and RMI information is to carry out the rate-matched of DMRS.

Optionally, the RMI information that can be used for DMRS rate-matcheds here can be occupied CDM in current system The number of group can be either the occupied assembled state of CDM groups or can be occupied CDM groups in current system Number (number of co-scheduled CDM groups) mode of the CDM groups provided in serial number, table 17-1 and table 17-2 It is merely illustrative.For the two methods of CDM groups number or occupied assembled state of CDM, method in previous embodiment can be used. For occupied CDM groups serial number mode, a kind of implementation method is, when 1 CDM group is occupied, RMI is in corresponding table " 1 " indicates that CDM groups 1 are occupied, and when 2 CDM groups are occupied, RMI is that " 1,2 ", expression CDM groups 1,2 are occupied in corresponding table With, when 3 CDM groups are occupied, in corresponding table RMI be " 1,2,3 ", indicate that CDM groups 1,2,3 are occupied, when specific implementation, The number of occupied CDM groups can change with the correspondence of CDM group serial numbers, given here merely illustrative.

Optionally, it is added to the symbolic information of DMRS in table, in a kind of implementation method, can only make in certain scheduling With the part in table, to save the expense of DCI.For example, when the current DMRS maximums symbol numbers of system are 1 symbol, The corresponding state of 1 symbol, the i.e. corresponding states of symbol number=1 only in configuration form in certain scheduling, work as notifications When current DMRS maximum symbol numbers are 2, whole states in configuration form.The method of table configuration can be that front is implemented The scheme provided in example, such as using a part for independent RRC signaling selection table, such as the corresponding shapes of symbol number=1 State, or can be bound with the signaling of DMRS maximum symbol numbers with the configuration of table, specific implementation can use to be implemented above Method in example, is not repeated herein.Can not include DMRS symbol numbers information in another implementation method, in table, i.e., Symbol number mono- are arranged, and DMRS symbolic information is indicated by value value recessiveness, for example, can pre-define, table 17-1 Middle value=0-10, the information of corresponding 1 symbol DMRS type 1, value=11-34 correspond to the letter of 2 symbol DMRS type 1 Breath.

Optionally, can include a variety of scheduling rules simultaneously in table.Such as in table 17-1, under one codeword, It is 2 that value=2, which corresponds to receiving terminal current orthogonal port number (number of plies), the preferential scheduling rule of port numbers 0,1, i.e. CDM, It is 2 that value=35, which corresponds to receiving terminal current orthogonal port number, port numbers 0,2 and the preferential scheduling rules of FDM.It is specific real In existing, the state of value=2 and value=35 can be retained simultaneously in the table, to meet the flexibility of scheduling；Or Value=35 can only be retained, remove value=2, guarantee SU is FDM priority schedulings, and receiving terminal can be according to port numbers at this time Scheduling rule recessiveness knows to be currently SU states；Or value=2 can be retained, value=35 is removed, with CDM priority principles It is scheduled, promotes spectrum efficiency.Specifically, in table 17-1, value=0-34 is a kind of side for meeting basic dispatching requirement Case, value=35-38 is different dispatching method can not include value=35-38 in a kind of implementation method in table To reduce expense, or can by one or more of the one or more of value=35-38 and value=0-34 item into Row is replaced, and one or more in value=35-38 can be retained by realizing in specific dispatching requirement or table, with Realize flexible dispatching.It is similar, in table 17-2, under two codeword, scheduling rule preferential CDM when value=24 is 6 layers Then, continuous DMRS port scheduling scheme when value=73 is 6 floor, FDM when value=74 is 6 layers in 2 CDM groups are preferential Scheduling rule, in the specific implementation, can retain three kinds of schemes any one either it is a variety of meet flexible dispatching or save open The demand of pin.Specifically, in table 17-2, value=0-70 is a kind of scheme for meeting basic dispatching requirement, value=71- 81 be different dispatching methods, can not include value=71-81 in specific implementation, in table to reduce expense, Huo Zheke To replace one or more of the one or more of value=71-81 and value=0-70 item, such as one codeword The lower state for retaining value=71 and remove the state of value=2, with realize in specific dispatching requirement or table can be with Retain one or more in value=71-81, to realize flexible dispatching.It should be understood that in table 17-1 and 17-2 The scheduling scheme provided is merely illustrative, in the specific implementation, can increase other scheduling schemes to promote dispatching flexibility and expire Sufficient dispatching requirement.

Optionally, what table 17-1 and 17-2 was provided is a kind of scheme of the number saving DCI expenses by codeword. In the specific implementation, can not be classified by codeword number, for example, the orthogonal port number of plies of receiving terminal can be passed through (the orthogonal port numbers of DMRS) is divided into multiple row, saves DCI expenses；Or by one in table 17-1 (or table 17-2) The state of codeword and two codeword is divided into different tables, corresponding different bit expenses；Or it can be by table The state of one codeword and two codeword encode together in 17-1 (or table 17-2), such as the value of table 17-1 =0-38 corresponds to the orthogonal number of plies of receiving terminal and is less than or equal to 4 layer states, and the value values more than or equal to 39 correspond to two in table 17-1 State (the orthogonal number of plies of receiving terminal be more than 4 layers) in codeword, a kind of implementation method are shown in Table shown in lattice 16-3 and 17-4, specifically Either certain items can be changed in realization to the sequence of instruction state to be replaced or remove, to realize different scheduling Demand can also configure certain scheduling using certain states in table to save expense, and concrete methods of realizing is shown in aforementioned implementation Example.In addition, the instruction of SU and MU states can be included in table, as shown in table 17-3 and 17-3 bracket, it is possible to understand that, tool Body can not include the status indication information of SU and MU in realizing, only provide a kind of possible implementation method at this.

1 example of table 17-1 DMRS ports composite type

2 example of table 17-2 DMRS ports composite type

1 example of table 17-3 DMRS ports composite type

2 example of table 17-4 DMRS ports composite type

In LTE, when MU-MIMO, maximum supports 4 orthogonal ports, these ports to use identical RE resources.It sets in this way The benefit of meter is rate-matched (rate matching, RM) problem of DMRS when can effectively avoid MU-MIMO.It is simple next It refers to that terminal needs to know which RE does not have data transmission in its running time-frequency resource to say rate-matched just, to be avoided when data demodulation These RE, to carry out correct data decoding.For example, in downlink transfer, some RE may quilt in the running time-frequency resource of terminal Control channel or RS are occupied, if base station is not by the location information notification terminal of these RE, terminal can be by these positions RS or control information are demodulated as data, to introduce decoding error.

In Single User MIMO (single user multiple-input multiple-output, SU-MIMO) scene Under, base station is only communicated with a terminal, and the information (RS, control signaling, data etc.) of the terminal is only transmitted in running time-frequency resource. At this point, terminal can directly learn the positions RE of the DMRS of oneself according to the information (such as port of oneself, number of plies information) of oneself It sets, these RE is avoided in data decoding.Therefore the rate matching problems in SU and there is no DMRS.

For multiuser MIMO (multi-user multiple-input multiple-output, MU-MIMO), base It stands while being communicated with multiple terminals, orthogonality, port are ensured by using orthogonal DMRS port (port) between terminal Between orthogonality can use time division multiplexing (time division multiplexing, TDM), frequency division multiplexing (frequency Division multiplexing, FDM) or code division multiplexing (code division multiplexing, CDM) guarantee. When using TDM and FDM, when orthogonal DMRS port occupies different, frequency resource.At this point, the occupied RE of the DMRS port On cannot transmit the data of other DMRS ports.For example, port1, port2 are orthogonal by FDM or TDM, port1 is occupied RE1, then base station would not transmit the data of port2 on RE1, in case the data of port2 generate noise to the DMRS of port1 Interference, influences precision of channel estimation.However, when port1 is orthogonal by CDM with port2, problem above is just not present, this is Because although the DMRS of port1 and port2 occupies identical RE, but what the two was multiplexed by code division multiplexing mode, from And it ensure that the orthogonality between the DMRS of two ports.

In MU-MIMO, terminal needs to know the port information for the other-end dispatched jointly, to which which RE obtained Position uses the DMRS of port to occupy by other-end, will not transmit the data of this terminal.If terminal cannot obtain this A little information, terminal can demodulate the DMRS of other users as the data of oneself, so as to cause decoding error.

In LTE, the rate matching problems of MU-MIMO are by ensureing what the DMRS for dispatching port was multiplexed by CDM Mode solves, at this point, the DMRS of all terminals all by CDM multiplexing with identical RE on, so as to avoid the rate of DMRS Matching problems, this design are properly termed as the MU-MIMO transparent to terminal.However, as previously described, in LTE in order to Ensure this transparent design so that MU-MIMO is only capable of supporting maximum 4 orthogonal ports.

In NR systems, such as in 5G, in order to give full play to the advantage of MU-MIMO, MU-MIMO branch has been adopted in standard Hold the design of 12 maximum orthogonality ports.In view of the DMRS pattern adopted in existing standard are only capable of supporting maximum 4 ends The CDM of mouth is multiplexed, and the scheme of the transparent mode in LTE is no longer applicable in.

Thus the DMRS rate matching of new MU-MIMO a kind of design particularly significant, the rate of DMRS Matching can be solved in the following way：

The first：Resource unit corresponding to DMRS, such as：All subcarriers do not transmit number on the position symbol (symbol) According to：This scheme is indicated without signaling, but larger frequency spectrum resource can be caused to waste.Such as in Figure 20 UE0 using port 1~ Port 4, UE1 use 5~port of port 8, the whole not transmission datas of the corresponding RE in 9~port of port, 12 position to will result in pole The big wasting of resources.

Second, directly notify the port serial number of other UE of UE：When other UE are occupied compared with multiport, can cause larger Signaling overheads, if UE0 uses port 1~2, when UE1 uses 5~port of port 8, it is necessary to be used to UE0 notices UE1 Port 5~8, and to port 1-2 used in UE1 notices UE0, this mode, the signaling overheads needed is especially big.

Specifically, needing 1/0bit map instruction DMRS port groups absolute position, such as each DMRS port in Figure 34 Group is individually indicated using 1bit, for containing 6 port sets in Figure 20,6bits is needed to carry out indicating practical transmission layer It counts and uses port assignment rule constraint：For example the number of plies of directly instruction current base station scheduling exists for Figure 20 and needs to distinguish The possibility for indicating 1-12 layers, needs 4bits to be indicated.

In order to realize that more effective data transmission, the application propose that a kind of and maximum can support port number or DMRS CDM port sets number in the pattern or pattern or the corresponding rate-matcheds of DMRS configuration type Indication scheme, to match 5G DMRS transmission demands.

The method for indicating DMRS rate-matcheds provided by the present application and receiving below illustrates.

As shown in figure 21, it is a kind of method demodulated reference signal rate-matched instruction and received provided by the present application.It should Method may include：

S201：Transmitting terminal generates demodulated reference signal DMRS and indicates information；The DMRS instructions information is used to indicate available The resource not occupied by DMRS in the resource of carrying DMRS；

Wherein, the DMRS instruction information transmits the number of plies by the current orthogonal for indicating to quantify, or currently has been used end Mouth organizes combinations of states, or the orthogonal transmission number of plies or port set state that currently non-receiving terminal uses, or need to be by silent resource Unit, the resource that can be used for not occupied by DMRS in the resource of carrying DMRS with instruction.

In one implementation, before transmitting terminal sends the DMRS instructions information, further include：

It sends DMRS transmission plans and indicates information, be used to indicate the current DMRS transmission plans；Different DMRS transmission The corresponding maximum of scheme can support orthogonal port number difference or corresponding DMRS patterns or corresponding DMRS Configuration Types different.

Specifically, different maximums can support port number or DMRS patterns (or CDM port sets number in DMRS patterns), Or DMRS Configuration Types are indicated using different DMRS instructions information, for example, for for orthogonal port, maximum can prop up The MU-MIMO scenes that port number is 4,6,8,12 are held, or for nonopiate port, maximum can support that port number is respectively 8, 12,16,24；These maximum supported port numbers have corresponding DMRS rate matching states information respectively, these DMRS rates At least there are two types of be different matching status.

DMRS instructions information is then that receiving terminal is allowed to know rate matching state, that is, in running time-frequency resource, which resource unit There are no by the DMRS occupancy of other receiving terminals, but it to be used for data transmission, receiving terminal can be when data demodulation Correct data decoding is carried out on these resource units.

In another realization method, DMRS instruction information, which is directed in different DMRS patterns or DMRS patterns, includes DMRS port group number (such as can have two tables correspond to respectively in DMRS patterns contain 2 or 3 DMRS ports Group) come what is configured, in general, a kind of DMRS patterns, which just correspond to, a kind of supporting the maximum fields MU-MIMO that can support port number Scape, the DMRS patterns illustrate that it supports how many orthogonal CDM port sets, each port set is by how many a resource unit groups At, therefore different DMRS instruction information is configured for different DMRS patterns, receiving terminal can also be allowed to indicate, in running time-frequency resource Interior, which resource unit is used for DMRS transmission not yet, but is used for data transmission, and receiving terminal can be correctly into line number According to demodulation.

In another realization method, DMRS instructions information can also be directed to DMRS Configuration Types (congfigration Type it) is configured.

In concrete implementation, therefore, in the embodiment of the present application for convenience of description, above-mentioned DMRS instructions information can be used Value values indicate, can be N bits when specific implementation, the DMRS port group for including in wherein N and DMRS patterns Number M (CS/OCC/CS+OCC) is related.For different pattern or DMRS Configuration Types (type), the value number of X can not Together.For example, for DMRS configuration type1, N comprising 2 DMRS port groups (M=2) can be 1bit or 2bits can be 2 or 3bits for DMRS configuration type2, N comprising 3 DMRS port groups (M=3).

As shown in table 18 below, this be DMRS instruction information example, the DMRS instructions information of the present embodiment is mainly Indicate that concrete form is not limited to following form, can as rate-matched, therefore with Rate matching instructions information To be table, either number or formula, wherein there is state in P, the number of P can use full N bits (with full all signaling shapes State), either it is more than N bits (increasing system call flexibility or other design requirements) or (quantization is to save less than N bits Save signaling overheads).M_p is rate matching state information (Rate matching information, RMI) or includes DMRS fast The parameter sets (parameter set) of rate match information, terminal can complete the rate about DMRS according to the instruction of M_p Match.Above-mentioned rate matching state information is indicated in follow-up and diagram with RMI, only for convenience of description, is not limited its meaning It is fixed.In the concrete realization, the rate matching state information can be indicated with the quantized value of the orthogonal transmission number of plies or port numbers or The preceding methods such as CDM groups indicate.

Table 18

Rate matching instructions information is related to rate matching state information, when rate matching state information can be used The specific orthogonal transmission number of plies is come when indicating, above-mentioned DMRS instructions information is determined from DMRS configuration informations, described Further include the instruction information of total orthogonal port number in DMRS configuration informations, the instruction information of total orthogonal port number can indicate reality The quantized value for all orthogonal port numbers that all orthogonal port numbers or actual capabilities that border is likely to occur occur.It is described all The quantized value of orthogonal port number is the orthogonal number of plies information of DMRS or instruction information is gathered in DMRS antenna orthogonals port, or The CDM group informations of DMRS antenna orthogonals port, or the information according to the generation of CDM sizes.

In concrete implementation, the quantized value of the orthogonal transmission number of plies can be DMRS numbers of plies information or DMRS antennas The CDM group informations of port aggregate information or DMRS antenna ports.In the DMRS numbers of plies information, the DMRS numbers of plies are a CDM The integral multiple of DMRS antenna port quantity in group.For example, for the DMRS patterns of a DMRS antenna port group containing there are two, Assuming that port set 1 is { 1,2,3,4 }, port set 2 is { 5,6,7,8 }, can be quantified as 4 layers and 8 layers.In addition, DMRS layers described In number information, the DMRS numbers of plies can also be continuous DMRS antenna ports quantity when the sequence from small to large in a CDM group Integral multiple can be quantified as 2 layers and 4 layers for example, for CDM groups { 1,2,5,7 } and { 3,4,6,8 }.These information, can Receiving terminal is allowed to identify which resource unit is used to the DMRS transmission of this receiving terminal, which resource unit is multiple for CDM The DMRS of other receiving terminals is transmitted, remaining resource unit be for the relevant data transmission of this receiving terminal, therefore, This receiving terminal carries out data demodulation on corresponding resource unit.

It should be understood that the content of rate matching state information may be according to the port mapping of DMRS pattern sequence not It is same and different, for example, may include but be not limited to：

1, DMRS port group mute states or the state used:Rate matching state information indicates each DMRS port group State, RM contents are unrelated with port mapping sequence, and there is no concrete restrictions for CDM group # sequence, for example can be according to end Mouth group inner port smallest sequence number is ranked up from small to large.

2, the system current orthogonal of stepping quantization transmits the number of plies

Assuming that DMRS port number is p=y+v, y is port numbers offset, it is ensured that p be the DMRS ports that define of NR most Small value, v=1,2 ... are the PDSCH current orthogonals transmission numbers of plies (being 8ports in LTE).Stepping quantization is carried out to v, to save The DCI signaling overheadss of rate matching can quantify upwards in the concrete realization, quantify downwards,

2.1, the current total number of plies of the system of upward stepping quantization (the rate matching state information content is related to mapping order) Can be equal in each CDM groups continuously port numbers number or maximum port serial numbers (assuming that y=0, only when in each CDM groups Port numbers are all continuous from small to large or from big to small), such as { 1,2,3,4 } { 5,6,7,8 } { 9,10,11,12 }, For identical DMRS pattern, meeting RMI contents change when mapping order changes.

2.2, the current total orthogonal transmission number of plies of the system of downward stepping quantization, this mode medium-rate matching status information Content is unrelated with the mapping order of DMRS pattern, can be equal to the continuous minimum port numbers of CDM groups or it is compiled since 1 Number quantization (assuming that y=0, port is numbered from 1).

When 2.3 DMRS groups inner end slogans sort from small to large, since small, continuous DMRS numbers number, such as two DMRS port group { 1,2,5,6 } and { 3,4,7,8 }, can be quantified as 2 and 4 layers.

It is because if to indicate that receiving terminal is specific it should be noted why using the quantized value of the orthogonal transmission number of plies The orthogonal transmission number of plies, such as the instruction orthogonal transmission number of plies { 1,2,3,4 } needs 2 bits to be indicated, and by orthogonal biography The defeated number of plies { 1,2,3,4 } is quantized into a value, such as is quantized into the orthogonal transmission number of plies 4 upwards, or quantifies the biography that is orthogonal downwards The defeated number of plies 1, or indicate that the reorganization orthogonal transmission number of plies { 1,2,3,4, } then indicates the quantized value of the orthogonal transmission number of plies with 2 or 3 It only needs a bit that can indicate, such as the quantized value 4 of the orthogonal transmission number of plies is indicated with 0, therefore instruction can be reduced and opened Pin.

2.4 DMRS groups status informations or DMRS groups serial number or group #；Or DMRS group numbers, wherein the CDM groups Number is the CDM groups of occupied in system/scheduling (co-scheldued).

S202：Transmitting terminal sends DMRS by running time-frequency resource and indicates information.

In the specific implementation, different maximums can be supported port number or the corresponding rate of difference DMRS patterns by the embodiment of the present application Matching way indicates that information is indicated by DMRS, and a kind of mode is recessive instruction, and another way is to pass through explicit signaling Mode indicated.

In recessive indication scheme, the quantized value of the above-mentioned orthogonal transmission number of plies configures in DMRS configuration information tables, and DMRS Information is indicated using the DMRS instruction information (value) in DMRS configuration information tables to be indicated；The DMRS configuration information tables Can be similar in LTE, for example, the antenna port number (Antenna ports) in LTE, scrambler indicates (scrambling Identity) and the orthogonal transmission number of plies indicates (number of layers indication), it can also include DMRS port Number, port index, sequence generate at least one of information, CDM types, on this basis, add the amount of the orthogonal transmission number of plies Change value.The DMRS configuration information tables can be stored on transmitting terminal and receiving terminal simultaneously, and transmitting terminal sends instruction letter to receiving terminal Breath, it should be understood that (due to continuing to use the signaling of LTE, which believes original DCI signalings transmitting terminal into receiving terminal transmission LTE Order may not be named as instruction information, but it can be with indicated speed matching scheme), receiving terminal is obtained simultaneously by the signaling The number of plies is always transmitted in the port information of oneself and the quantization of system, in conjunction with two information, calculates the end that other receiving terminals use Mouthful.That is, receiving terminal identifies which resource unit is used to the DMRS transmission of this receiving terminal, which resource unit is to be used for CDM multiplexing other receiving terminals DMRS transmission, remaining resource unit be for the relevant data transmission of this receiving terminal, Therefore, this receiving terminal carries out data demodulation on corresponding resource unit.

In explicit signaling indication scheme, above-mentioned DMRS indicates that the correspondence of information and rate matching state information is logical Cross independently of the DMRS configuration information tables in LTE and exist namely DMRS instruction information and rate matching state information between Correspondence is not lain in DMRS configuration information tables, therefore transmitting terminal and receiving terminal match confidence in addition to preserving DMRS respectively It ceases except table, also preserves correspondence allocation list (or information of DMRS instruction information and rate matching state information respectively Table can be configured by RRC), which exists independently of DMRS configuration information tables, and transmitting terminal passes through Rate configuration instruction information is sent to receiving terminal by the mode of explicit signaling, receiving terminal using DMRS instruction information as indexing, Search corresponding rate matching state information in correspondence allocation list, receiving terminal by the rate matching state information with it is described DMRS configuration information tables are combined, and identify which resource unit is used to be occupied by the DMRS of this receiving terminal, which resource Unit is occupied by the DMRS of CDM other receiving terminals being multiplexed, and remaining resource unit is for relevant with this receiving terminal Data transmission, therefore, this receiving terminal carry out data demodulation on corresponding resource unit.

It should be noted that the DMRS instructions information of identical value can correspond to the quantized value of the different orthogonal transmission numbers of plies, Therefore the correspondence between DMRS instruction information and the quantized value of the orthogonal transmission number of plies can also be carried out by individual signaling Instruction.It should be understood that for dominant indication scheme, the orthogonal transmission number of plies of quantization is exactly to indicate information instruction by DMRS , receiving terminal will receive two signalings, and one is the DMRS DCI signalings in LTE, and one is orthogonal for transmitting current quantisation The DMRS instruction information of the transmission number of plies indicates that the signaling of information (is properly termed as rate again herein comprising DMRS Matching indication signalings).

It is understood that in the scheme of either recessive instruction or dominant instruction, above-mentioned DMRS indicates information hair Can be sent in a manner of independent signaling when being sent to receiving terminal, can also be to carry to send in downlink signaling, herein It is not construed as limiting.

Above-mentioned transmission DMRS indicates information, and both quantized values of instruction DMRS instruction information and the orthogonal transmission number of plies Between correspondence signaling, can be with wireless heterogeneous networks (radio resource control, RRC), media access control Control unit (media access control control element, MAC CE) or DCI are sent to receiving terminal or this Arbitrary two kinds or three kinds of combination of three kinds of signalings.

In one implementation, the signaling is determined whether to send DMRS instruction letters by the number of code word (codeword) Breath.Indicate that information, 2 codeword do not send the letter then for example, triggering signaling if 1 codeword to send DMRSDMRS It enables, the reason is that, in the corresponding SU-MIMO of 2 codeword (single user multiple-input multiple- Output, SU-MIMO) under scene, transmitting terminal, such as base station are only communicated with a receiving terminal (terminal), in running time-frequency resource Only transmit the information (RS, control signaling, data etc.) of the terminal.At this point, terminal can be according to information (such as end of oneself of oneself The information such as mouth, the number of plies) positions RE of directly learning the DMRS of oneself, these RE are avoided in data decoding.Therefore in SU And there is no the rate matching problems of DMRS.

S203：Receiving terminal receives the DMRS and indicates information.

S204：Indicate that information obtains rate matching information according to the DMRS, in the enterprising line number of resource for not transmitting DMRS According to demodulation.

In the specific implementation, if it is recessive indicating mode, after receiving terminal receives DMRS instruction information, with it Value values are index, and the quantized value that the corresponding orthogonal transmission number of plies is searched in DMRS configuration information tables (and then knows DMRS layers Count information either DMRS antenna port sets information or the code division multiplexing CDM group informations etc. of DMRS antenna ports), and The information such as the number of plies, the DMRS port number that oneself use, and then receiving terminal identifies which resource unit is used to this receiving terminal DMRS transmission, which resource unit is the DMRS transmission for CDM other receiving terminals be multiplexed, and remaining resource unit is For with the relevant data transmission of this receiving terminal, therefore, this receiving terminal carries out data demodulation on corresponding resource unit.If It is dominant indicating mode, in transmitting terminal and receiving terminal other than preserving DMRS configuration information tables respectively, also preserves and refer to respectively In the case of showing information configuration table (or the DMRS configuration information tables can be configured by RRC), receiving terminal believes the instruction Breath searches corresponding rate matching state, receiving terminal believes the rate matching state as index in correspondence allocation list Breath is combined with the DMRS configuration information tables, identifies which resource unit is used to the DMRS transmission of this receiving terminal, which A little resource units are that (optional, in a kind of implementation method, which can pass through speed for the DMRS transmission of other receiving terminals Rate match information directly obtains), remaining resource unit is for therefore originally being connect with the relevant data transmission of this receiving terminal Receiving end carries out data demodulation on corresponding resource unit.

DMRS instructions provided by the present application and the method received can also be applied to irrelevant joint transmission (Non- Coherent joint transmission, NC-JT) 2PDCCH scenes, specifically, using 2 hairs of the co-located QCL groups of non-standard End is penetrated, is carried out data transmission after the corresponding resource units of DMRS of silent non-transmitting terminal.It is to be understood that phase between transmitting terminal Mutual mute other side DMRS ports group can be that TRP gives tacit consent to DMRS pairs in the QCL groups of other side TRP in specific implementation The positions RE are answered to carry out muting.For DMRS pattern type1, wherein including two DMRS port groups, in NC-JT scenes Under, can be non-QCL between two DMRS port groups, and the port in each DMRS port group is QCL, at this point, 2 TRP can use a port group respectively, and therefore, the program can be solved directly, be indicated without additional signaling.For DMRS Pattern type2 can have a TRP and use 1 DMRS port group at this time wherein including 3 DMRS port groups, and Another TRP use two DMRS port groups scene, at this point, the TPR comprising two DMRS port groups need indicate information into Row instruction, and then may not need instruction information using the TPR of 1 DMRS port group and indicated.

And under 1PDCCH scenes, it can also be by way of independently indicating, detailed process still can be found in shown in Figure 21 Step：

It is to generate DMRS by the transmitting terminal of irrelevant joint transmission to indicate information it should be noted that in step S201, it should DMRS indicates that the DMRS port in the QCL groups that information can be used according to multiple TRP of cooperation generates；

In step S202, transmitting terminal sends DMRS to receiving terminal and indicates information, for 1PDCCH scenes, DMRS instruction letters The corresponding resource units of DMRS that multiple TRP of breath instruction cooperation can be used, and for 2PDCCH scenes, the rate-matched Information indicates the corresponding resource units of DMRS that this transmitting terminal uses.

Operation is identical as the S203 of previous embodiment and S204 after receiving terminal receives the DMRS instructions information, herein It repeats no more.

If the technical solution is applied in uplink scene, transmitting terminal can be terminal, and receiving terminal can be network Equipment, such as base station.If the technical solution is applied in downlink transfer scene, transmitting terminal can be the network equipment, such as base It stands, receiving terminal can be terminal.

The method of the instruction of DMRS rate-matcheds provided by the present application indicates that information and maximum can support port by DMRS Number or DMRS patterns or DMRS Configuration Types correspond to, and can be matched with the several scenes of NR, such as NC-JT or dynamic TDD or flexibly duplexing scene, the above method can apply in NR scenes complicated and changeable, in addition it can meet the higher number of plies According to the demand of transmission, and reduce instruction expense.

It should be understood that DMRS port here refers to all DMRS ports that system is supported, as in actual implementation, The DMRS port for whether having used this all in scheduling process, the part in the DMRS port for still having used this all DMRS port, the application is without limiting.

It will be described below the method for reseptance of the indicating means and DMRS rate-matcheds of DMRS rate-matcheds provided by the present application Specific implementation process.

Embodiment five

Mainly description designs explicit signaling to indicate that DMRS indicates information to the present embodiment five.

As shown in figure 22, which is the maximum supported with TRP0, can support that orthogonal port number is 12, wherein give terminal 0 (UE0) The port of distribution is 1,2,7,8ports, and the port to terminal 1 (UE1) distribution is 3,4,9,10ports.

In this scene, there are many DMRS ports that UE0 and UE1 are used, and is for 12 DMRS ports as shown in figure 23 A kind of schematic diagram of mapping ruler, wherein each shade lattice indicates the RE, n=0 that a DMRS port group is mapped to. 12 DMRS ports are divided into 3 DMRS port groups, respectively DMRS port group 1, DMRS port group 2, DMRS port group 3；

Each DMRS port group includes 4 DMRS ports.The corresponding DMRS of each DMRS port in each DMRS port group Between identical running time-frequency resource is multiplexed by CDM modes.The mapping ruler of this 3 DMRS port groups is as follows：

The running time-frequency resource of first DMRS port group mapping on frequency domain including 12n, 12n+1 of resource unit, 12n+6, 12n+7 subcarrier.

The running time-frequency resource of second DMRS port group mapping includes 12n+2,12n+3,12n+ of resource unit on frequency domain 8,12n+9 subcarrier.

The running time-frequency resource of third DMRS port group mapping includes 12n+4,12n+5,12n+ of resource unit on frequency domain 10,12n+11 subcarrier.

Wherein, n can take more than or equal to 0, and be less thanAny one or more integers.Hereinafter with resource Number of sub carrier wave of the unit on frequency domain illustrates for being M, wherein M is greater than or equal to 1 integer.If for example, resource Unit is 1 RB pair (2 RB i.e. on time domain direction), then M=12；If resource unit is 2 RB, M of frequency domain direction =24.Each CDM groups occupy continuous two symbols in the time domain.

Assuming that DMRS port group 1 include DMRS port { 1,2,7,8 }, DMRS port group 2 include DMRS port 3,4,9, 10 }, DMRS port group 3 includes DMRS port { 5,6,11,12 }.Here only as an example, specific DMRS port mapping mode It does not limit.It is worth noting that, when DMRS port mapping mode changes, rate matching status informations can also occur Change.According to the method for this programme introduction, pertinent art can be simply obtained.In the specific implementation, if DMRS port is reflected The mode of penetrating changes, and rate matching status informations change, then it represents that the orthogonal biography of rate matching status informations The quantized value of the defeated number of plies can also change therewith.Therefore, DMRS indicates pair between information and the quantized value of the orthogonal transmission number of plies Should be related to can be indicated by a signaling.

DMRS indicates that the value of information Value can be there are two types of representation, and one is the decimal systems, and one is binary systems.

As value=0 (decimal system) or 00 (binary system), the quantized value of the corresponding orthogonal transmission number of plies is (in figure Illustrated with RMI) it is 4, indicate that the current quantisation number of plies is 4；As Value=1 or 01, RMI=8 is indicated；As Value=2 or When 10, corresponding RMI=12；As value=3 or 11, RMI=reserved (reserved value) is indicated, it, can when specific implementation Think vacant, or other states can be placed, such as corresponding 2nd and the 3rd port set (or the 1st and the 3rd port set) is occupied It is quantified as 4 layers of transmission state.It is assumed that base station is dispatched according to port set number order.

At this point, DMRS instructions information when indicating, can be indicated with binary system with 2bits.

As shown in preceding table 4 be support the SU/MU MIMO DMRS configuration information tables of maximum 12 orthogonal port numbers, and The DCI signaling tables of the DMRS of LTE are similar, which is only applicable to transparent MU-MIMO, and receiving terminal passes through the table Obtain the information such as DMRS port and the orthogonal transmission number of plies of oneself.In addition, receiving terminal can also be according to the DMRS having been received It indicates the RMI that information (occurrence of value) indicates, knows the current orthogonal transmission number of plies of quantization, or currently have been used end Mouth organizes combinations of states, or the orthogonal transmission number of plies or port set state that currently non-receiving terminal uses, or need to be by silent resource Unit, to know the resource not occupied by DMRS in the resource that can be used for carrying DMRS, it is hereby achieved that other pairings are eventually The DMRS port information at end completes rate-matched.

When the value for the DMRS instruction information value that UE0 is received is 1 (decimal system) or 01 (binary system), representative is worked as The quantized value of the preceding orthogonal transmission number of plies is 8, to know that DMRS port group 1 and DMRS port group 2 are occupied.UE0 combinations table 4 The port information of oneself of middle acquisition, it is known that DMRS port group 1 includes the DMRS port of oneself, and DMRS port group 2 does not include The DMRS port of oneself, to know that DMRS port group 2 is used by other-end, into the data without being transferred from oneself.Equally , UE1 learns that the quantized value of the orthogonal transmission number of plies is 4, in conjunction with the port information of oneself obtained in table 4, in turn by instruction Learn that DMRS port group 1 and DMRS port group 2 are occupied, to know that non-1 position of DMRS port group oneself used will not pass Oneself defeated data.In addition, UE0 and UE1 through-rate match informations, know that 3 position of DMRS port group can be with transmission data.

Only example above, for different DMRS pattern and different port mapping modes, the value of RMI and The form of expression of DCI information tables can be different, for example, the RMI gone out in previous example is the current quantisation number of plies, can also be DMRS The serial number of port set.

The maximum that system shown in Figure 22 is supported can support that port number is 12, and in other realization methods, TRP can be with Support the maximum such as 4,6,8 that can support port number, the maximum supported can support port number can be by explicit signaling such as RRC, MAC CE or DCI instruction, can also other configurations Wire Parameters corresponding with scene, such as frequency point, carrier wave interval, frame structure Deng.

Being the maximum supported with TRP0 as of fig. 24 can support that port number is 6, wherein to terminal 0 (UE0) distribution Port is 1,2ports, and the port to terminal 1 (UE1) distribution is 3,4ports.

In this scene, there are many multiplex modes for the DMRS port that UE0 and UE1 are used, and are for 6 DMRS as shown in figure 25 A kind of schematic diagram of mapping ruler of port, wherein each shade lattice indicates the RE that a DMRS port group is mapped to, N=0.6 DMRS ports are divided into 3 DMRS port groups, respectively DMRS port group 1, DMRS port group 2, DMRS port group 3；

The running time-frequency resource that DMRS port group 1 maps includes 12n, 12n+1,12n+6,12n+ of resource unit on frequency domain At least one of 7 subcarriers.

The running time-frequency resource that DMRS port group 2 maps on frequency domain including 12n+2,12n+3 of resource unit, 12n+8, At least one of 12n+9 subcarrier.

The running time-frequency resource that DMRS port group 3 maps on frequency domain including 12n+4,12n+5 of resource unit, 12n+10, At least one of 12n+11 subcarrier.

Wherein, n can take more than or equal to 0, and be less thanAny one or more integers.3 CDM groups are in time domain 1 symbol of upper occupancy.

As value=0 (decimal system) or 00 (binary system), the quantized value of the corresponding orthogonal transmission number of plies is (in figure Illustrated with RMI) it is 2, indicate that the current quantisation number of plies is 2；As Value=1 or 01, indicate RMI=4, as Value=2 or When 10, corresponding RMI=6；As value=3 or 11, RMI=reserved (reserved value) is indicated.

Similarly, receiving terminal can also be indicated according to the DMRS instruction information (occurrence of value) having been received RMI, knows the current orthogonal transmission number of plies of quantization, or currently has been used port set combinations of states, or current non-receiving terminal The orthogonal transmission number of plies or port set state used, or need to can be used for carrying DMRS's by silent resource unit to know The resource not occupied by DMRS in resource, it is hereby achieved that the DMRS port information of other pairing terminals, completes rate-matched. Further, in conjunction with the SU/MU MIMO DMRS signaling tables of 6 orthogonal DMRS ports of the support of table 2, other can be obtained and matched To the DMRS port information of terminal.For example, the value for the DMRS instruction information value that UE0 is received is 1 (decimal system) or 01 When (binary system), the quantized value for representing the current orthogonal transmission number of plies is 4, it is assumed that DMRS port group 1 includes DMRS port { 1,2 }, DMRS port group 2 includes DMRS port { 3,4 }, and DMRS port group 3 can according to rate matching information comprising DMRS port { 5,6 } To learn that DMRS port group 1 and DMRS port group 2 are used, DMRS port group 3 is not used by.At this point, terminal combines oneself DMRS port information would know that the port set position that other-end uses.

As shown in figure 26, which is the maximum supported with TRP0, can support that port number is 8, wherein to terminal 0 (UE0) distribution Port is 1,2,3,4ports, and the port of terminal 1 (UE1) distribution is 5,6,7,8ports.

In this scene, the DMRS port that UE0 and UE1 are used can be 8 as shown in figure 27 there are many multiplex mode The schematic diagram of a kind of mapping ruler of DMRS port, wherein each shade lattice indicates that a DMRS port group is mapped to RE, n=0.8 DMRS ports are divided into 2 DMRS port groups, respectively DMRS port group 1, DMRS port group 2；Each DMRS Port set includes 4 DMRS ports.

Identical time-frequency is multiplexed between the corresponding DMRS of each DMRS port in each DMRS port group by CDM modes to provide Source.The mapping ruler of this 2 DMRS port groups is as follows：

The running time-frequency resource of each DMRS port group mapping is mapped in continuous 2 symbols in the time domain, and：

The running time-frequency resource that DMRS port group 1 maps include on frequency domain 12n, 12n+2 of resource unit, 12n+4, At least one of 12n+6,12n+8,12n+10 subcarriers.

The running time-frequency resource that DMRS port group 2 maps include on frequency domain 12n+1,12n+3 of resource unit, 12n+5, At least one of 12n+7,12n+9,12n+11 subcarriers.

Wherein, n can take more than or equal to 0, and be less thanAny one or more integers.

As value=0 (decimal system) or 00 (binary system), the quantized value of the corresponding orthogonal transmission number of plies is (in figure Illustrated with RMI) it is 4, indicate that the current quantisation number of plies is 4；As Value=1 or 01, RMI=8 is indicated.Furthermore, it is possible to indicate The combination of two CDM groups represents DMRS port group 1 and is used for example, when value=0 (decimal system) or 00 (binary system), As Value=1 or 01, DMRS port group 1 and DMRS port group 2 are used.

At this point, DMRS instructions information when indicating, can be indicated with binary system with 1bits.

Similarly, receiving terminal can also be indicated according to the DMRS instruction information (occurrence of value) having been received RMI, knows the current orthogonal transmission number of plies of quantization, or currently has been used port set combinations of states, or current non-receiving terminal The orthogonal transmission number of plies or port set state used, or need to can be used for carrying DMRS's by silent resource unit to know The resource not occupied by DMRS in resource, it is hereby achieved that the DMRS port information of other pairing terminals, to carry out rate matching.Below with port set combinations of states as an example, quantization parameter number of plies scheme is referred to the example above.Example Such as, when the value for the DMRS instruction information value that UE0 is received is 1 (decimal system) or 01 (binary system), DMRS port group is represented 1 and DMRS port group 2 it is occupied, UE0 can obtain DMRS port information according to oneself, learn the DMRS port oneself used Group will not transmit the data of oneself, and then carry out rate-matched to know that other port sets are used by other UE.

As shown in figure 28, which is the maximum supported with TRP0, can support that port number is 4, wherein to terminal 0 (UE0) distribution Port is 1,2ports, and the port of terminal 1 (UE1) distribution is 3,4ports.In this scene, ends DMRS that UE0 and UE1 are used Mouth can be for a kind of schematic diagram of mapping ruler of 2 DMRS ports as shown in figure 29 there are many CDM multiplex modes, wherein Each shade lattice indicates that the RE that a DMRS port group is mapped to, 4 DMRS ports are divided into 2 DMRS port groups, point Not Wei DMRS port group 1, DMRS port group 2；Each DMRS port group includes 2 DMRS ports.

The running time-frequency resource of each DMRS port group mapping is mapped in 1 symbol in the time domain, and：

The running time-frequency resource that DMRS port group 1 maps includes the 2n subcarrier of resource unit on frequency domain.

The running time-frequency resource that DMRS port group 2 maps includes the 2n+1 subcarrier of resource unit on frequency domain.

Assuming that DMRS port group 1 includes DMRS port { 1,3 }, DMRS port group 2 includes DMRS port { 2,4 }, at this point, working as Value=0 (decimal system) or when 00 (binary system), the quantized value (being illustrated with RMI in figure) of the corresponding orthogonal transmission number of plies It is 2, indicates that the current quantisation number of plies is 2；As Value=1 or 01, RMI=4 is indicated.

Similarly, receiving terminal can also be indicated according to the DMRS instruction information (occurrence of value) having been received RMI, knows the current orthogonal transmission number of plies of quantization, or currently has been used port set combinations of states, or current non-receiving terminal The orthogonal transmission number of plies or port set state used, or need to other pairing terminals can be obtained by silent resource unit DMRS port information, to carry out rate matching.For example, the value for the instruction information value that UE0 is received be 1 (ten into System) or when 01 (binary system), the quantized value for representing the current orthogonal transmission number of plies is 4, at this point, terminal through-rate match information Learn that DMRS port group 1 and DMRS port group 2 are occupied, the DMRS port used in conjunction with oneself can learn other-end The DMRS port group used, to carry out rate-matched.It should be noted that the scheme as Figure 27 and Figure 29 can also be according to base The dispatching sequence to stand is quantified as 1 and 2 layer if CDM is dispatched after elder generation FDM, thus, rate matching information in the embodiment can be with Carried out with DMRS patterns configuration (type) or the DMRS patterns port set number that includes it is corresponding, to simplify receiving terminal storage Expense.

When above-mentioned TRP supports the maximums such as 4,6,8,12 that can support port number, maximum can support the orthogonal transmission number of plies for not Same DMRS pattern and DMRS port mapping mode can be different, and it is as follows to be summarized as rule：

The orthogonal transmission number of plies of quantization can obtain in the following manner, only provide a rule here, specific implementation can To be directly saved as numerical value, the process that need not choose：

Assuming that all DMRS ports are quantified as since 1, then in each DMRS port group, when port numbers are arranged from small to large When sequence, quantifying the number of plies can be,

Such as port set 1 { 1,2,3,4 } port set 2 { 5,6,7,8 }, it is quantified as 4,8；

Such as port set 1 { 1,3,5,7 } port set 2 { 2,4,6,8 }, it is quantified as 1,2；

Such as port set 1 { 1,2,5,7 } port set 2 { 3,4,6,8 }, it is quantified as 2,4；

Such as port set 1 { 1,2,5,6 } port set 2 { 3,4,7,8 }, it is quantified as 2,4.

Such as 2 { 5,6,7,8 } port set 3 { 9,10,11,12 } of port set 1 { 1,2,3,4 } port set, it is quantified as 4,8,12；

Such as port set 1 { Isosorbide-5-Nitrae, 7,10 } port set 2 { 2,5,8,11 } port set 3 { 3,6,9,12 }, it is quantified as 1,2,3；

Such as 2 { 3,4,9,10 } port set 3 { 5,6,11,12 } of port set 1 { 1,2,7,8 } port set, it is quantified as 2,4,6；

Such as 2 { 3,4,8,11 } port set 3 { 5,6,9,12 } of port set 1 { 1,2,7,10 } port set, it is quantified as 2,4,6；

Implement above-described embodiment, can support that transport layer can be supported to design corresponding DMRS configuration informations for each maximum Table can meet the needs of different scenes in NR systems.

Embodiment six

For different DMRS pattern, designs different signalings and indicated.Wherein for different DMRS ports Mapping mode, the content in table may be different, can be that the current orthogonal of quantization transmits the number of plies, or DMRS port group State.

As shown in Figure 30 (a)~30 (e), the mapping order of signal is the DMRS of FDM mappings after elder generation CDM mappings pattern。

For each DMRS pattern, the expense of corresponding instruction information is different, such as：

For supporting the pattern of 4 orthogonal ports shown in Figure 30 (a), 1bit is needed to indicate RMI, when RM refers to When showing value Value=0 or 00, indicate that rate matching state information RMI is 2, i.e. the quantized value of the current orthogonal transmission number of plies is 2；As Value=1 or 01, rate matching state information RMI=4 is indicated；

For supporting the pattern of 8 orthogonal ports shown in Figure 30 (b), 1bit is needed to indicate RM, when RM is indicated When value Value=0/00, indicate that rate-matched RMI is 4；As Value=1/01, rate-matched RMI=8 is indicated；

For supporting the pattern of 6 orthogonal ports shown in Figure 30 (c), 2bits is needed to indicate RM, when RM refers to When showing value Value=0/00, indicate that rate-matched RMI is 2；As Value=1/01, rate-matched RMI=4 is indicated；When When Value=2/10, rate-matched RMI=6 is indicated；

For supporting the pattern of 12 orthogonal ports shown in Figure 30 (d), 2bits is needed to indicate RM, when RM refers to When showing value Value=0/00, indicate that rate-matched RMI is 4；As Value=1/01, rate-matched RMI=8 is indicated；When When Value=2/10, rate-matched RMI=12 is indicated；

For supporting the pattern of 12 orthogonal ports shown in Figure 30 (e), 2bits is needed to indicate RM, when RM refers to When showing value Value=0/00, indicate that rate-matched RMI is 2；As Value=1/01, rate-matched RMI=4 is indicated；When When Value=2/10, rate-matched RMI=6 is indicated.

Such as Figure 31 (a)~31d) shown in, the mapping order of signal is the DMRS of CDM mappings after elder generation FDM mappings pattern。

For supporting the pattern of 4 orthogonal ports shown in Figure 31 (a), 1bit is needed to indicate RMI, when RM refers to When showing value Value=0/00, indicate that rate-matched RMI is 1；As Value=1/01, rate-matched RMI=2 is indicated；

For supporting the pattern of 8 orthogonal ports shown in Figure 31 (b), 1bit is needed to indicate RM, when RM is indicated When value Value=0/00, indicate that rate-matched RMI is 1；As Value=1/01, rate-matched RMI=2 is indicated；

For supporting the pattern of 6 orthogonal ports shown in Figure 31 (c), 2bits is needed to indicate RM, when RM refers to When showing value Value=0/00, indicate that rate-matched RMI is 1；As Value=1/01, rate-matched RMI=2 is indicated；When When Value=2/10, rate-matched RMI=3 is indicated；When RM indicates value Value=3/11, indicate that rate-matched RMI is reserved；

For supporting the pattern of 12 orthogonal ports shown in Figure 31 (d), 2bits is needed to indicate RM, when RM refers to When showing value Value=0/00, indicate that rate-matched RMI is 1；As Value=1/10, rate-matched RMI=2 is indicated；When When Value=2/10, rate-matched RMI=3 is indicated；When RM indicates value Value=3/11, indicate that rate-matched RMI is reserved；

In addition, under this kind of port mapping scheme, multiple DMRS patterns can correspond to identical RM tables, such as 31 (a) with 31 (b) can corresponding identical rate-matched table, such as table of 31 (a), and 31 (c) can be corresponding identical with 31 (d) Rate-matched table, the port set as the table and table of 31 (c) can be in or DMRS patterns correspondings with DMRS type is a Number corresponds to.The benefit of this method is can to save the expense of terminal storage.

As shown in Figure 32 (a)~32 (d), the mapping order of signal is CDM and FDM Hybrid port mapping modes.

For supporting the pattern of 4 orthogonal ports shown in Figure 32 (a), 1bit is needed to indicate RMI, when RM refers to When showing value Value=0/00, indicate that rate-matched RMI is 2；As Value=1/01, rate-matched RMI=4 is indicated；

For supporting the pattern of 8 orthogonal ports shown in Figure 32 (b), 1bit is needed to indicate RM, when RM is indicated When value Value=0/00, indicate that rate-matched RMI is 2；As Value=1/01, rate-matched RMI=4 is indicated；

For supporting the pattern of 6 orthogonal ports shown in Figure 32 (c), 2bits is needed to indicate RM, when RM refers to When showing value Value=0/00, indicate that rate-matched RMI is 2；As Value=1/01, rate-matched RMI=4 is indicated；When When Value=2/10, rate-matched RMI=6 is indicated；As value=3/11, indicate that the value of rate-matched RMI is reserved；

For supporting the pattern of 12 orthogonal ports shown in Figure 32 (d), 2bits is needed to indicate RM, when RM refers to When showing value Value=0/00, indicate that rate-matched RMI is 2；As Value=1/01, rate-matched RMI=4 is indicated；When When Value=2/10, rate-matched RMI=6 is indicated；When RM indicates value Value=3/11, indicate that rate-matched RMI is reserved；

In addition, under this kind of port mapping scheme, multiple DMRS patterns can correspond to identical RM tables, such as 32 (a) with 32 (b) can corresponding identical rate-matched table, such as table of 32 (a), and 32 (c) can be corresponding identical with 32 (d) Rate-matched table, the port set as the table and table of 32 (c) can be in or DMRS patterns correspondings with DMRS type is a Number corresponds to.The benefit of this method is can to save the expense of terminal storage.

As shown in Figure 33 (a)~33 (d), the port set use state of DMRS pattern is illustrated that.

For each DMRS pattern, the expense of corresponding DMRS instructions information is different, such as：

For supporting the pattern of 4 orthogonal ports shown in Figure 33 (a), 1bit is needed to indicate RMI, when RM refers to When showing value Value=0/00, indicate that rate-matched RMI is 1, i.e. DMRS port group 1 is occupied；As Value=1/01, table Show rate-matched RMI=2, it is occupied to represent DMRS port group 1 and 2 at this time；

For supporting the pattern of 8 orthogonal ports shown in Figure 33 (b), 1bit is needed to indicate RM, when RM is indicated When value Value=0/00, indicate that rate-matched RMI is 1, DMRS port group 1 is occupied at this time；As Value=1/10, table Show rate-matched RMI=2, indicates that DMRS port group 1 and 2 is occupied at this time；

Optionally, 33 (a) and 33 (b) can corresponding identical rate-matched table, such as the rate-matched table of 33 (a), The port set number that table can be in or DMRS patterns corresponding with DMRS type at this time is corresponding.The benefit of this method is can to save Save the expense of terminal storage.

For supporting the pattern of 6 orthogonal ports shown in Figure 33 (c), 2bits is needed to indicate RM, when RM refers to When showing value Value=0/00, indicates that rate-matched RMI is 1, indicate that DMRS port group 1 is occupied at this time；Work as Value=1/ When 01, rate-matched RMI=2 is indicated, indicate that DMRS port group 1 and 2 is occupied；As Value=2/10, rate-matched is indicated RMI=3 indicates that DMRS port group 1,2,3 is occupied at this time；As value=3/11, rate-matched RMI=4 is indicated, this When indicate DMRS port group 2 and 3 it is occupied；It should be noted that for RMI=4, when specific implementation, can also be defined previously as DMRS port group 1 and 3 occupied states, or can be reserved.

For supporting the pattern of 12 orthogonal ports shown in Figure 33 (d), 2bits is needed to indicate RM, when RM refers to When showing value Value=0/00, indicates that rate-matched RMI is 1, indicate that DMRS port group 1 is occupied at this time；Work as Value=1/ When 01, rate-matched RMI=2 is indicated, indicate that DMRS port group 1 and 2 is occupied；As Value=2/10, rate-matched is indicated RMI=3 indicates that DMRS port group 1,2,3 is occupied at this time；As value=3/11, rate-matched RMI=4 is indicated, this When indicate DMRS port group 2 and 3 it is occupied；It should be noted that for RMI=4, when specific implementation, can also be defined previously as DMRS port group 1 and 3 occupied states, or can be reserved.

Optionally, 33 (c) and 33 (d) can corresponding identical rate-matched table, table can be with DMRS type at this time Port set number in corresponding or DMRS patterns corresponds to.The benefit of this method is can to save the expense of terminal storage.

It is worth noting that, the CDM combinations in the program are only example, in specific implementation process, it is possible to reduce or increase Add, or replaces with other DMRS combinations of states.

It should be noted that, in actual implementation process, value can the occupied state group of direct corresponding ports group It closes, is not necessarily to the expression of RMI, for example for Figure 33 (a), table 19-1 can be described as.

Table 19-1

In addition, it is optional, the state of SU, such as table 19-2 can be added in the table.

Table 19-2

value	description
		0/00	SU or 0 layer occupied
…	….

Here 0 layer is mainly used to notify terminal currently to be SU states, does not limit specific expression-form.

Implement embodiment shown in above-mentioned Figure 30~33, for each pattern, or one kind DMRS configurations (type) or DMRS pattern with identical port set number design corresponding DMRS instructions information, can meet different in NR systems The demand of scene such as communicates (Ultra-Reliable and Low-Latency for the extremely low time delay of high reliability Communication, URLLC) scene pattern and be not only used for enhancing mobile broadband (Enhanced Mobile Broadband, eMBB) pattern, the design of table is rethought for other different pattern.

Embodiment seven

DMRS configuration informations and DMRS instructions information can be carried out classification and referred to by the combination for RRC, MAC-CE, DCI Show, for example parameter setting (parameter set) can be configured by RRC, wherein including the orthogonal transmission number of plies of quantization Information or CDM group status informations select parameter set notices eventually to make the rate-matched of DMRS by DCI signalings End.The orthogonal transmission number of plies method of above a variety of quantizations can be positioned in parameter set, wherein parameter Set may include other information, such as the initial position of ZP-CSI-RS or PDSCH, end position etc..Here it provides Table it is merely illustrative, specific form, size and description form do not limit.When specific implementation, parameter Set can be configured by RRC, and wherein parameter set can include the relevant rate matching informations of DMRS such as table 20 It is shown.

Table 20

value	description
		0/00	Parameter set 1
1/01	Parameter set 2
		2/10	Parameter set 3
3/11	Parameter set 4
		…	…

Embodiment eight

In the present embodiment, by total orthogonal transmission number of plies or total orthogonal port number (herein total orthogonal transmission number of plies and it is total just Hand over the numerically equal of both port numbers) relevant information is designed into DMRS configuration information tables, total orthogonal port number correlation letter Breath is embodied by an instruction information, which can indicate all orthogonal port numbers that actual capabilities occur, or The quantized value for all orthogonal port numbers that actual capabilities occur, the quantized value of all orthogonal port numbers can be the orthogonal numbers of plies of DMRS Information or DMRS antenna orthogonals port set instruction information either the CDM group informations of DMRS antenna orthogonals port or It is the information generated according to CDM sizes.

For 34 (a) in such as Figure 34,34 (b), 34 (c) and 34 (d) four kinds of pattern, table 4 is arrived relative to aforementioned table 1 In DMRS configuration information tables, the instruction information of total orthogonal transmission number of plies this feature is added in the present embodiment, such as chart 21 To being total orthogonal transmission number of plies shown in mono- columns total or total layer number in information table shown in table 24 Indicate information.

Table 21

port combinations for 1-symbol pattern in config.1

Table 22

port combinations for 2-symbol pattern in config.1

Table 23

port combinations for 1-symbol pattern in config.2

Table 24

port combinations for 2-symbol pattern in config.2

The present embodiment considers all total orthogonal transmission numbers of plies being likely to occur, and can be adapted to all scenes, and can Multiple terminals for doing MU adaptations carry out rate-matched.

The present embodiment is added to total orthogonal biography on the basis of the content for the DMRS configuration information tables that previous embodiment provides This feature of the defeated number of plies, the number of plies information as quantified, terminal combine the information, recessive can obtain RMI information.

The present embodiment considers all total orthogonal transmission numbers of plies being likely to occur, and can be adapted to all scenes.It is therein Quantized layer num are the quantized values to the possible orthogonal transmission number of plies, and using in DMRS configuration information tables DMRS indicates the identical value of information (value) to be indicated；The DMRS configuration information tables can be similar in LTE, for example, Antenna port number (Antenna ports) in LTE, scrambler indicate (scrambling identity) and the orthogonal transmission number of plies It indicates (number of layers indication), it can also include DMRS port number, port index, sequence generation letter At least one of breath, CDM types add the quantized value of the orthogonal transmission number of plies on this basis.The DMRS configuration information tables can To be stored on transmitting terminal and receiving terminal simultaneously, when transmitting terminal is needed to receiving terminal indicated speed matching scheme, it is only necessary to An instruction information is sent to receiving terminal, after receiving terminal receives the instruction information, using it as index, is matched in DMRS The quantized value for searching the corresponding orthogonal transmission number of plies in information table is set, while knowing DMRS numbers of plies information or DMRS antenna ends Mouth aggregate information, or the also code division multiplexing CDM group informations etc. of DMRS antenna ports, and then which resource receiving terminal identifies Unit is used to the DMRS transmission of this receiving terminal, which resource unit is the DMRS biographies for CDM other receiving terminals being multiplexed It is defeated, remaining resource unit be for the relevant data transmission of this receiving terminal, therefore, this receiving terminal is in corresponding resource list Data demodulation is carried out in member.

In another realization method, the instruction information of the embodiment of the present application indicates the DMRS port that non-reception end uses itself Group state.Specifically, can be indicated by DCI：

For configration shown in 34 (a) and 34 (b), indicated by such as the following table 25：

Table 25

value	MU	Description
			0	non-mute
1	MU	all-mute

The table 25 can also be sent by transmitting terminal by RRC signaling according to protocol configuration in transmitting terminal and receiving terminal To receiving terminal.

Wherein, unlike previous embodiment, in the table 25, corresponding value values are no longer the orthogonal transmission numbers of plies Quantized value, but indicate the state for the DMRS port group that non-reception end itself uses, such as when value=0, indicate no matter It is SU or MU pairings, the state for the DMRS port group that non-reception end uses itself is non-silence (non-mute), and value= When 1, indicate that the state for the DMRS port group that non-reception end uses itself is whole silent (all-mute).Receiving terminal receives this After instruction information (value values), you can the state for judging the non-self DMRS port group used, to complete rate Match.It should be noted that mono- columns MU are merely illustrative in table 25, specific implementation when, can not have.

For configration shown in 34 (c) and 34 (d), a kind of mode is also the non-self ends DMRS used of instruction Whether mouth group is silent, as shown in table 26 below, wherein the end that larger and smaller set itself can be used according to non-reception end The relativeness of mouthful group is determined, for example, for the scene of 3 port sets, when terminal uses 1 port set, it is larger and Smaller port set can be true according to the relativeness (such as size) of maximum (or minimum) port numbers in remaining 2 port sets It is fixed, in specific implementation, the process compared can not included, directly larger and smaller port set prestores.

Table 26

value	SU/MU	Description
			0	SU	non-mute
1	MU	mute smaller set
			2	MU	mute larger set
3	MU	all-mute

Another way is to indicate which the non-self DMRS port group used is specifically, for example, when receiving terminal uses end When mouthful group 1, when value=0, indicate not silent；When value=1, indicate that other receiving terminals for doing MU pairings use end Mouth group 2；When value=2, indicate that other receiving terminals for doing MU pairings use port set 3；When value=3, MU is in expression Other receiving terminals of pairing use port set 2 and port set 3.In the specific implementation, the serial number of port set can not be defined, lead to The port numbers crossed in port set indicate port set, such as port set 2 includes port { 5,6,7,8 }, then can be straight in the table It connects and port set 2 is replaced with into { 5,6,7,8 }, it is specific as shown in table 27.

Table 27

value	SU/MU	Description
			0	SU	non-mute
1	MU	Port set 2
			2	MU	Port set 3
3	MU	All of the port group or port sets 2, port set 3

Yet another approach is to indicate that mode is as follows by RRC+DCI multistages：

The rate matching information of DMRS can be indicated by RRC+DCI multistages or RRC+MAC CE+DCI are multistage Instruction

It includes DMRS rate matching parameter sets that RRC, which can be configured multiple, passes through DCI signaling dynamic selects

It is selected for example, RRC configures 2 parameter set, 1bit DCI signaling dynamics, alternatively, RRC configures 4 Parameter set, 2bits DCI signalings are dynamically selected, specifically as shown in table 28-1 and table 28-2.

Table 28-1

1bit case

value of'RE mapping'field	Description
		0/'00'	parameter set 1 configured by higher layers
1/'01'	parameter set 2 configured by higher layers

Table 28-2

2bits case

value of'RE mapping'field	Description
		0/'00'	parameter set 1 configured by higher layers
1/'01'	parameter set 2 configured by higher layers
		3/'10'	parameter set 3 configured by higher layers
4/'11'	parameter set 4 configured by higher layers

Include the rate matching information of DMRS in parameter set, rate matching status informations can be with There are many expression-forms, such as：

It can be the 4 kinds of states provided in said program, be specifically corresponding 0,1,2, the 3 four kind of state of value values；

Can be the whether occupied status information of each CDM groups, such as CDM groups can be numbered, for example, 1,2, 3DMRS CDM groups；In the specific implementation, the state for CDM group # can be not present, it can be by indicating the end in CDM groups Slogan is realized.

Can be the specific location of ZP DMRS, the positions of corresponding multiple CDM groups (such as using bitmap, for Config1 2bits, for config2 3bits)；

It can be rate matching pattern, directly indicate which RE on DMRS symbol is needed by mute, At this time without CDM group concepts.

In another realization method, it is used for realizing the rate-matched of DMRS with CDM group informations in DMRS configuration information tables.

RMI can be expressed as the status information of CDM groups, such as " the State of of 8-1 and 8-2 in a kind of realization method The columns CDM group ".Below for specific DMRS pattern as an example, wherein specific DMRS port port numbers only For example.Sequentially (port mapping) for different port mappings, the DMRS port number (port in following example Index it) may change, not limit here.

In conjunction with Figure 34 (Figure 34 middle ports group, that is, CDM port sets), FL DMRS corresponding for table 8-1 Configuration type 1, state 1 (State of CDM group=1) represent CDM port sets 1 (Figure 34 (a) and (b) In oblique dashed part) it is occupied；State 2 represents CDM groups 1 and 2 occupied (the oblique scribing line in Figure 34 (a) and (b) and horizontal line portion Point)；

DMRS type 2 corresponding for table 8-2, it is occupied (oblique in Figure 34 (c) and (d) that state 1 corresponds to CDM groups 1 Dashed part), it is occupied (the oblique scribing line in Figure 34 (c) and (d) and horizontal line part) that state 2 represents CDM groups 1 and 2,3 generation of state Table CDM groups 1,2,3 are occupied (the oblique scribing line in Figure 34 (c) and (d) and horizontal line part, vertical line part).

A kind of example of CDM groups seizure condition is only gived above, each state can be substituted for other in specific implementation The occupied state of CDM groups.In addition, when specific implementation, the CDM groups state specifically indicated in table 8-1 and table 8-2 is (in such as table State of CDM group=1,2,3) occupied CDM group # (such as CDM group 1), Huo Zheke can be substituted for With the whole port numbers being directly expressed as in CDM groups (such as CDM group 1 can be expressed as port numbers 0,1 or 0,1,4,6) At least one of the CDM groups either occupied DMRS port number (such as CDM group 1 can be expressed as port numbers 0 or 0,1). In addition, in the whole port numbers modes being expressed as in CDM groups, symbol number are can be omitted in table 8-1 and table 8-2 One column, by directly indicating that port numbers recessiveness whole in CDM groups indicates 1 symbol or 2 symbol FL DMRS pattern, than Such as, 0,1 is expressed as 1 symbol type1, CDM group 1,0 is expressed as 2 symbol type1, CDM groups 1, Isosorbide-5-Nitrae, 6, receiving terminal can To obtain 1 symbol or the information of 2 symbol DMRS according to the port numbers recessiveness in CDM groups.

In another realization method, the RMI information of table can indicate occupied CDM groups number, i.e. table 8-1 and 8-2 In " State of CDM group " could alternatively be ' number of CDM groups ' or ' number of co- Scheduled CDM groups ', specific literal expression do not limit.

Table 29-1 gives a kind of corresponding adding methods of DMRS type 1, ' number of co-scheduled CDM Groups ' indicate type 1 in 1 or 2 CDM groups it is occupied.In a kind of implementation method, CDM groups number can be according to certain Dispatching sequence realizes, as the orthogonal port number of plies according to current quantisation in previous embodiment obtains.In a kind of implementation method, CDM Group number information can directly correspond to specific CDM groups serial number, or be based on certain scheduling rule.Such as DMRS type 1, 1 CDM group can correspond to that CDM groups 1 are occupied, and 2 CDM groups can be understood as CDM groups 1 and CDM groups 2 are occupied.For DMRS Type2,1 CDM group can correspond to that CDM groups 1 are occupied, and 2 CDM groups can be understood as CDM groups 1 and CDM groups 2 are occupied, 3 It is occupied that CDM groups can be understood as CDM groups 1,2,3.In another implementation method, CDM groups number can not be tied up with CDM group serial numbers It is fixed, for example for 1,1 CDM group of DMRS type with indicating that only there are one CDM groups to use in system, which can be CDM 1 or CDM of group groups 2, receiving terminal can obtain occupied CDM groups serial number according to its specific DMRS port number, and 2 CDM groups are then Indicate that 2 CDM groups are occupied, receiving terminal may use 1 or two CDM groups, if receiving terminal uses CDM groups 2, then can To infer that CDM groups 1 are occupied by other receiving terminals, to carry out rate-matched.

1 example of table 29-1 DMRS ports composite type

In addition, in another realization method, the CDM group numbers added in table can not include that receiving terminal itself uses CDM group numbers, i.e., indicate that system is currently used in table and do not include the number of CDM groups that receiving terminal itself uses, or Person can be understood as (the CDM groups number that occupied CDM groups total number-receiving terminal uses in system).For example, for Type1, When totally 2 CDM groups are called for system, when receiving terminal uses 2 CDM groups, the CDM group numbers that non-reception end uses itself are 0；When Totally 2 CDM groups are called for system, and it is 1 that receiving terminal, which uses 1 CDM group, the CDM group numbers that non-reception end uses itself,；When being Altogether 1 CDM group is called, and it is 0 that receiving terminal, which uses 1 CDM group, the CDM group numbers that non-reception end uses,.In this kind of scheme CDM group numbers could alternatively be the number of co-scheduled CDM groups in table D-1.Specific table this field Researcher can obtain table according to mentioned above principle direct derivation.

In addition, can also add power in above-mentioned DMRS configuration informations table increases (power boosting) information, such as One row of addition provide the power boosting numerical value of specific each state in 29-1, and concrete numerical value can be for type 1 0db, 3dB can be 0dB, 1.77dB, 4.77dB for type 2.In the table, the concrete numerical value of power boosting can Directly infer and can obtain with the number of the CDM groups directly occupied according to current state and receiving terminal port information, power Boosting value have one-to-one relationship with state.

Specific Principles are, for DMRS type 1, when receiving terminal is using occupying 1 CDM port set, and system is currently only Have 1 CDM port set it is occupied when, power boosting numerical value be 0dB；2 CDM port sets are occupied when receiving terminal uses, And system currently have 2 CDM port sets it is occupied when, power boosting numerical value be 0dB；1 is occupied when receiving terminal uses CDM port sets, and system currently have 2 CDM port sets it is occupied when, power boosting numerical value be 3dB.It is given in table 29-2 Go out an example of a corresponding DMRS type 1, specific port is called, symbol number are not limited.

1 example of table 29-2 DMRS ports composite type

For DMRS type 2,1 CDM port set is occupied when receiving terminal uses, and system currently only has 1 port CDM When group is occupied, power boosting numerical value is 0dB；2 CDM port sets are occupied when receiving terminal uses, and system currently has 2 When a CDM port sets are occupied, power boosting numerical value is 0dB；1 CDM port set is occupied when receiving terminal uses, and is System currently have 2 CDM port sets it is occupied when, power boosting numerical value be 1.77dB；1 is occupied when receiving terminal uses CDM port sets, and system currently have 3 CDM port sets it is occupied when, power boosting numerical value be 4.77dB.Here it limits When one receiving terminal can only at most call 4 ports, i.e. MU in 1 CDM group when determining MU, a receiving terminal is at most only capable of accounting for With 1 CDM group.An example of a corresponding DMRS type 2, specific port calling, symbol are provided in table 29-3 Number is not limited.

2 example of Table 29-3 DMRS ports composite type

Embodiment nine

The present embodiment is for solving irrelevant joint transmission (Non-coherent joint transmission, NC-JT 2 PDCCH) DMRS rate matching problems under scene.

As shown in figure 35, in this Multi-TRP, NC-JT, support in 2PDCCH scenes 12ports, TRP0 use 1,2, 7,10}；TRP1 uses { 3,4,5,6,8,9,11,12 }

It is agreement default solution that a kind of settling mode is provided in the present embodiment：Non- TRP can be used oneself TRP acquiescences One or more QCL groups in DMRS correspond to the positions RE and carry out silent (mute).For example, for DMRS as shown in figure 36 Pattern, i.e. two DMRS port groups, then 2 TRP are quiet by the corresponding running time-frequency resource position of the non-self DMRS port used It is silent, therefore the program can be solved directly, be indicated without additional signaling.

Another settling mode is that independent indication scheme is as shown in figure 37：TRP acquiescences are by one workable for non-TRP oneself Or the DMRS in multiple QCL groups corresponds to the positions RE and carries out muting, in addition, for there is the TRP of multiple port sets, is sent to UE RM signals, the rate-matched signaling can be applicable according to the scheme introduced before, it should be noted that at this point, rate-matched is believed Order is according to DMRS port workable for current TRP or can to support support the maximum number of plies or itself workable DMRS port pair The DMRS patterns answered are generated.The rate-matched signaling that UE is received according to the use of oneself completes rate-matched, and scheme can be with Scheme in embodiment before use.Here it is only illustrated with a kind of DMRS pattern, it, can be with for different DMRS pattern Use corresponding RM signalings.

For example, for Figure 37, TRP0 is only capable of using DMRS port group 1, TRP1 that can use DMRS port group 2 and 3, this When, DMRS port group 2 and 3 is corresponded to running time-frequency resource silence by TRP0, and DMRS port group 1 is corresponded to running time-frequency resource silence by TRP1, this Outside, terminal will receive the rate-matched signaling of TRP1, which indicates port set 2 and the 3 total quantization orthogonal transmission numbers of plies, i.e., The quantization orthogonal transmission number of plies of DMRS port workable for TRP1, at this time TRP0 can there is no rate-matched signaling or rate Matching signal can send the state for representing SU.Terminal receives the rate-matched signaling of TRP1, completes rate-matched, demodulates TRP1 The data of transmission.

It should be noted that the present embodiment can also use instruction information to indicate the DMRS port that non-reception end itself uses The mode of group, such as when entering NC-JT patterns for TRP0, indicated without signaling, or indicated using original signaling, and for TRP1 is indicated by following table, when value=0, indicates that the non-self DMRS port group used is not silent, and When value=1, the non-self DMRS port group used is all silent, specific as shown in table 30.

Table 30

value	Description
		0	non-mute
1	all-mute

Embodiment ten

The present embodiment ten is suitable for dynamic TDD or flexibly duplexing scene.

As shown in figure 38, in Dynamic TDD, 12ports, TRP0 is supported to use { 1,2,3,4 } DMRS port；TRP1 Use { 5,6,7,8 } DMRS port；

It is agreement default solution that a kind of settling mode is provided in the present embodiment：Non- TRP can be used oneself TRP acquiescences One or more QCL groups in DMRS correspond to the positions RE and carry out silent (mute).For example, for DMRS as shown in figure 39 Pattern, i.e. two DMRS port groups, TRP0 and TRP1 respectively use a DMRS port group, and by the non-DMRS oneself used The corresponding running time-frequency resource position of port set is silent, and therefore, the program can be solved directly, is indicated without additional signaling.

Another settling mode is that independent indication scheme is as shown in figure 40：TRP acquiescences are by one workable for non-TRP oneself Or the DMRS in multiple QCL groups corresponds to the positions RE and carries out muting, in addition, for there is the TRP of multiple port sets, is sent to UE RM signals, the rate-matched signaling can be applicable according to the scheme introduced before, it should be noted that at this point, rate-matched is believed Order can be generated according to DMRS port workable for current TRP or the corresponding DMRS patterns of workable DMRS port.UE The rate-matched signaling received according to the use of oneself completes rate-matched, and scheme can scheme in embodiment before use.This In only with a kind of DMRS pattern illustrate, for different DMRS pattern, corresponding RM signalings can be used.

For example, for Figure 40, TRP0 is only capable of using DMRS port group 1, TRP1 that can use DMRS port group 2 and 3, this When, TRP0 is silent by DMRS port group 2 and 3 positions, and TRP1 is by 1 position of DMRS port group silence, in addition, terminal will receive TRP1 Rate-matched signaling, which indicates the quantization orthogonal transmission number of plies of DMRS port group 2 and 3, the i.e. orthogonal biography of the quantization of TRP1 The defeated number of plies, at this time TRP0 can there is no rate-matched signaling or rate-matched signaling that can send the state for representing SU.Terminal The rate-matched signaling of TRP1 is received, rate-matched, the data that demodulation TRP1 is sent are completed.

It should be noted that the present embodiment can also use instruction information to indicate the DMRS port that non-reception end itself uses The mode of group, such as when entering NC-JT patterns for TRP0, indicated without signaling, or indicated using original signaling, and for TRP1 is indicated by following table, and when value=1, the non-self DMRS port group used is not silent, and value When=1, the non-self DMRS port group used is all silent, specific as shown in table 31：

Table 31

value	Description
		0	non-mute
1	all-mute

It is above-mentioned that mainly scheme provided by the embodiments of the present application is described from the angle of interaction between each network element.It can With understanding, each network element, such as base station or terminal.In order to realize above-mentioned function, it comprises execute each function phase The hardware configuration and/or software module answered.Those skilled in the art should be readily appreciated that, in conjunction with reality disclosed herein Each exemplary unit and algorithm steps of example description are applied, the application can be with the combining form of hardware or hardware and computer software To realize.Some functions is executed in a manner of hardware or computer software driving hardware actually, depends on technical solution Specific application and design constraint.Professional technician can to each specific application come using distinct methods to realize The function of description, but this realization is it is not considered that exceed scope of the present application.

The embodiment of the present application can carry out base station or terminal according to the above method example division of function module, example Such as, each function can be corresponded to and divide each function module, two or more functions can also be integrated at one It manages in module.The form that hardware had both may be used in above-mentioned integrated module is realized, the form of software function module can also be used It realizes.It should be noted that being schematical to the division of module in the embodiment of the present application, only a kind of logic function is drawn Point, formula that in actual implementation, there may be another division manner.Below for dividing each function module using corresponding each function It illustrates：

Figure 41 shows a kind of structural schematic diagram of transmitting terminal 350.The transmitting terminal 350 can be above involved in base station 100 or terminal 200.The transmitting terminal 350 may include processing unit 3501 and transmission unit 3502.Wherein, processing unit 3501 It can be used for executing the S101 in Fig. 6, i.e., select DMRS configuration informations from multiple DMRS configuration information tables, and according to this DMRS configuration informations obtain DMRS instruction information, or execute S201 shown in Figure 21, that is, generate demodulated reference signal DMRS instructions Information；The DMRS instructions information can support port number or DMRS patterns or DMRS Configuration Types corresponding with maximum, and/or use In the other processes for supporting techniques described herein.Transmission unit 3502 can be used for executing S102 the or Figure 21 institutes in Fig. 6 Transmitting terminal executes the action that DMRS relevant informations or DMRS instruction information are sent by running time-frequency resource in the S202 stated, and/or uses In the other processes for supporting techniques described herein.All related contents for each step that above method embodiment is related to To quote the function description of corresponding function module, details are not described herein.

Figure 42 shows the structural schematic diagram of a receiving terminal 360.The receiving terminal 360 may include processing unit 3602 and connect Receive unit 3603.Wherein：The receiving terminal 360 can be above involved in terminal 200 or base station 100.Receiving unit 3603 is used The action of information is indicated in executing the reception DMRS in the S103 in Fig. 6 performed by receiving terminal or for executing in Figure 21 The action of reception DMRS instruction information in S203 performed by receiving terminal, and involved in/the embodiment of the present application connect Receiving end receives the action of any information.Processing unit 3602 can be used for executing the S104 in Fig. 6, i.e., according to described in reception DMRS indicates information, or for executing the S204 in Figure 21, i.e., information is indicated according to the DMRS of reception, to complete to demodulate Reference signal, and/or other processes for supporting techniques described herein.Each step that above method embodiment is related to All related contents can quote the function description of corresponding function module, and details are not described herein.It is exemplary, it is implementing In the process, it can be understood as, receiving terminal 360 first passes through such as, but not limited to Fourier inversion (inverse fourier Transform, IFFT) it obtains the symbol carried on each RE and (such as obtains the symbol carried on each subcarrier of each OFDM symbol Number), then, according to the running time-frequency resource where DMRS, DMRS is obtained from the symbol of acquisition.

In the embodiment of the present application, 350~receiving terminal of transmitting terminal 360 corresponds to the shape that each function divides each function module Formula is presented, or should be presented in the form of using the model split each function module integrated.Here " module " can refer to Application-specific integrated circuit (application-specific integrated circuit, ASIC), executes one or more The processor and memory of software or firmware program, integrated logic circuit and/or other the device of above-mentioned function can be provided, Wherein, processor can be integrated with memory, can also be relatively independent.

In a simple embodiment, those skilled in the art is contemplated that 350~receiving terminal of transmitting terminal 360 Any of pass through structure as shown in figure 43 and realize.

As shown in figure 43, device 390 may include：Memory 3901, processor 3902 and communication interface 3903.Its Middle memory 3902 is for storing computer executed instructions, and when device 390 is run, processor 3901 executes memory 3902 and deposits The computer executed instructions of storage, so that device 390 executes information transferring method provided by the embodiments of the present application.Specific information passes Transmission method can refer to the associated description in above and attached drawing, and details are not described herein again.Wherein, communication interface 3903 can be transmitting-receiving Device.

Optionally, device 390 can be field programmable gate array (field-programmable gate array, FPGA), special integrated chip (application specific integrated circuit, ASIC), System on Chip/SoC (system on chip, SoC), central processing unit (central processor unit, CPU), network processing unit (network processor, NP), digital signal processing circuit (digital signal processor, DSP), microcontroller Device (micro controller unit, MCU) can also use programmable controller (programmable logic Device, PLD) or other integrated chips.

The embodiment of the present application also provides a kind of storage medium, which may include memory 3902.

In the above-described embodiments, can come wholly or partly by software, hardware, firmware or its arbitrary combination real It is existing.When being realized using software program, can entirely or partly realize in the form of a computer program product.The computer Program product includes one or more computer instructions.On computers load and execute computer program instructions when, all or It partly generates according to the flow or function described in the embodiment of the present application.The computer can be all-purpose computer, special meter Calculation machine, computer network or other programmable devices.The computer instruction can be stored in computer readable storage medium In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center Word user line (digital subscriber line, DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another A web-site, computer, server or data center are transmitted.The computer readable storage medium can be computer Any usable medium that can be accessed is either comprising numbers such as one or more server, data centers that can be integrated with medium According to storage device.The usable medium can be magnetic medium (for example, floppy disk, hard disk, tape), optical medium (for example, DVD), Or semiconductor medium (such as solid state disk (solid state disk, SSD)) etc..

Although the application is described in conjunction with each embodiment herein, however, implementing the application claimed In the process, those skilled in the art are by checking the attached drawing, disclosure and the appended claims, it will be appreciated that and it is real Other variations of the existing open embodiment.In the claims, " comprising " (comprising) word is not excluded for other compositions Part or step, "a" or "an" are not excluded for multiple situations.Claim may be implemented in single processor or other units In several functions enumerating.Mutually different has been recited in mutually different dependent certain measures, it is not intended that these are arranged It applies to combine and generates good effect.

Although the application is described in conjunction with specific features and embodiment, it is clear that, do not departing from this Shen In the case of spirit and scope please, it can be carry out various modifications and is combined.Correspondingly, the specification and drawings are only institute The exemplary illustration for the application that attached claim is defined, and be considered as covered within the scope of the application arbitrary and all and repair Change, change, combining or equivalent.Obviously, those skilled in the art the application can be carried out various modification and variations without It is detached from spirit and scope.If in this way, these modifications and variations of the application belong to the application claim and its Within the scope of equivalent technologies, then the application is also intended to include these modifications and variations.

Claims

1. a kind of demodulated reference signal indicating means, which is characterized in that including：

Transmitting terminal obtains DMRS according to DMRS configuration informations and indicates information；The code point of DMRS instruction information marker antennas port CDM group informations are multiplexed, the CDM group informations include CDM group numbers；

The transmitting terminal sends the DMRS and indicates information.

2. the method as described in claim 1, which is characterized in that the transmitting terminal obtains DMRS according to DMRS configuration informations and indicates Information includes before：

Transmitting terminal determination from multigroup demodulated reference signal DMRS configuration informations is corresponding with current DMRS transmission plans DMRS configuration informations, and the DMRS is obtained according to DMRS configuration informations and indicates information；Every group of DMRS configuration information include A plurality of DMRS configuration informations.

3. the method as described in claim 1, which is characterized in that the CDM groups number is to have occupied or scheduling can in system Energy property, it is not used in the number of the CDM groups of transmission data.

4. method as claimed in claim 3, which is characterized in that when the value of the CDM groups number information is 1, indicate CDM groups 1 Occupied or scheduling when the value of CDM group number information is 2, indicates that CDM groups 1 and CDM groups 2 are occupied or dispatch, the CDM groups When the value of number information is 3, indicate that CDM groups 1, CDM groups 2, CDM groups 3 are occupied or dispatch.

5. the method as described in claim 1, which is characterized in that further include the symbol letter of DMRS in the DMRS configuration informations Breath.

6. the method as described in any one of claim 3 to 5, which is characterized in that in the DMRS configuration informations, DMRS types The DMRS port mapping ruler of 1 and DMRS types 2 is as follows：

For 1 symbol DMRS Class1, the port that CDM groups 1 include is { 0,1 }, and the port that CDM groups 2 include is { 2,3 }；

For 2 symbol DMRS Class1, the port that CDM groups 1 include be { 0, Isosorbide-5-Nitrae, 5 }, the port that CDM groups 2 include for 2,3,6, 7}；

For 1 symbol DMRS types 2, the port that CDM groups 1 include is { 0,1 }, and CDM groups 2 include that port is { 2,3 }, and CDM groups 3 are wrapped The port contained is { 4,5 }；

For 2 symbol DMRS types 2, the port that CDM groups 1 include be { 0,1,6,7 }, the port that CDM groups 2 include for 2,3,8, 9 }, the port that CDM groups 3 include is { 4,5,10,11 }.

7. method as claimed in claim 6, which is characterized in that in the corresponding DMRS configuration informations of the DMRS Class1, CDM Group number, port, the correspondence between symbolic number meet following table a line or multirow shown in correspondence：

8. method as claimed in claim 6, which is characterized in that in 2 corresponding DMRS configuration informations of the DMRS types, CDM Group number, port, the correspondence between symbolic number meet following table a line or multirow shown in correspondence：

9. the method as described in claim 1, which is characterized in that configure the DMRS configuration informations by RRC signaling and can be used Range, which determined based on the symbolic information of DMRS or DMRS maximums symbol numbers.

10. the method as described in claim 1, which is characterized in that range workable for the DMRS configuration informations and wireless money The parameter association of DMRS maximum symbol numbers is indicated in the control signaling RRC of source.

11. the method as described in claim 1, which is characterized in that for 2 symbol DMRS types 2, match confidence using the DMRS When breath carries out single user SU scheduling, frequency division multiplexing FDM scheduling is preferentially carried out in CDM groups 1 and CDM groups 2.

12. method as claimed in claim 11, which is characterized in that it is described for 2 symbol DMRS types 2, utilize the DMRS When configuration information carries out single user SU scheduling, frequency division multiplexing FDM scheduling is preferentially carried out in CDM groups 1 and CDM groups 2, when CDM groups When the value of number is 2, from 1 corresponding DMRS port 0,1,6,7 of the CDM groups when 6 layers of transport layer or 6 DMRS ports are called Middle scheduling DMRS port 0,1,6；DMRS port 2,3,8 is dispatched from 2 corresponding DMRS port 2,3,8,9 of the CDM groups；

It is corresponding from the CDM groups 1 when 8 layers of transport layer or 8 DMRS ports are called when the value of CDM group numbers is 2 DMRS port 0,1,6,7 is dispatched in DMRS port 0,1,6,7；It is dispatched from 2 corresponding DMRS port 2,3,8,9 of the CDM groups DMRS port 2,3,8,9.

13. a kind of transmitting terminal, which is characterized in that including：

Processing unit obtains DMRS according to DMRS configuration informations and indicates information；DMRS instruction information marker antennas port Code division multiplexing CDM group informations, the CDM group informations include CDM group numbers；

Transmission unit sends the DMRS instructions information.

14. transmitting terminal as claimed in claim 13, which is characterized in that the transmitting terminal obtains DMRS according to DMRS configuration informations It indicates information, includes before：

15. transmitting terminal as claimed in claim 13, which is characterized in that the CDM groups number is to have occupied in system or adjust Possibility is spent, the number of the CDM groups of transmission data is not used in.

16. transmitting terminal as claimed in claim 15, which is characterized in that when the value of the CDM groups number information is 1, indicate CDM Group 1 is occupied or scheduling, when the value of CDM group number information is 2, indicates that CDM groups 1 and CDM groups 2 are occupied or dispatch, the CDM When the value of group number information is 3, indicate that CDM groups 1, CDM groups 2, CDM groups 3 are occupied or dispatch.

17. transmitting terminal as claimed in claim 13, which is characterized in that further include the symbol of DMRS in the DMRS configuration informations Information.

18. the transmitting terminal as described in any one of claim 15 to 17, which is characterized in that in the DMRS configuration informations, DMRS Class1 and the DMRS port mapping ruler of DMRS types 2 are as follows：

19. transmitting terminal as claimed in claim 18, which is characterized in that in the corresponding DMRS configuration informations of the DMRS Class1, CDM group numbers, port, the correspondence between symbolic number meet following table a line or multirow shown in correspondence：

20. transmitting terminal as claimed in claim 18, which is characterized in that in 2 corresponding DMRS configuration informations of the DMRS types, CDM group numbers, port, the correspondence between symbolic number meet following table a line or multirow shown in correspondence：

21. transmitting terminal as claimed in claim 13, which is characterized in that configuring the DMRS configuration informations by RRC signaling can The range used, the workable range are determined based on the symbolic information of DMRS or DMRS maximums symbol numbers.

22. transmitting terminal as claimed in claim 13, which is characterized in that range workable for the DMRS configuration informations with it is wireless The parameter association of DMRS maximum symbol numbers is indicated in resource control signaling RRC.

23. transmitting terminal as claimed in claim 13, which is characterized in that for 2 symbol DMRS types 2, matched using the DMRS When confidence breath carries out single user SU scheduling, frequency division multiplexing FDM scheduling is preferentially carried out in CDM groups 1 and CDM groups 2.

24. transmitting terminal as claimed in claim 23, which is characterized in that it is described for 2 symbol DMRS types 2, using described When DMRS configuration informations carry out single user SU scheduling, frequency division multiplexing FDM scheduling is preferentially carried out in CDM groups 1 and CDM groups 2, when When the value of CDM group numbers is 2, from 1 corresponding DMRS port 0 of the CDM groups when 6 layers of transport layer or called 6 DMRS ports, DMRS port 0,1,6 is dispatched in 1,6,7；DMRS port 2,3 is dispatched from 2 corresponding DMRS port 2,3,8,9 of the CDM groups, 8；

25. a kind of method receiving demodulated reference signal, which is characterized in that including：

Receiving terminal receives the demodulated reference signal DMRS that transmitting terminal is sent and indicates information；DMRS instruction information marker antennas end The code division multiplexing CDM group informations of mouth, the CDM group informations include CDM group numbers；

The receiving terminal indicates information, aid demodulation data according to the DMRS of reception.

26. method as claimed in claim 25, which is characterized in that DMRS instruction information is the transmitting terminal from multigroup demodulation DMRS configuration informations corresponding with current DMRS transmission plans are determined in reference signal DMRS configuration informations, and are configured according to DMRS Information obtains DMRS instruction information；Every group of DMRS configuration information includes a plurality of DMRS configuration informations.

27. method as claimed in claim 25, which is characterized in that the CDM groups number is may occupied or tune in system Degree, is not used in the number of the CDM groups of transmission data.

28. method as claimed in claim 27, which is characterized in that when the value of the CDM groups number information is 1, indicate CDM groups 1 occupied or scheduling when the value of CDM group number information is 2, indicates that CDM groups 1 and CDM groups 2 are occupied or dispatch, the CDM groups When the value of number information is 3, indicate that CDM groups 1, CDM groups 2, CDM groups 3 are occupied or dispatch.

29. method as claimed in claim 25, which is characterized in that further include the symbol letter of DMRS in the DMRS configuration informations Breath.

30. such as any one of claim 27 to 29 the method, which is characterized in that in the DMRS configuration informations, DMRS classes The specific DMRS port mapping ruler of type 1 and DMRS types 2 is as follows：

31. method as claimed in claim 30, which is characterized in that in the corresponding DMRS configuration informations of the DMRS Class1, CDM group numbers, port, the correspondence between symbolic number meet following table a line or multirow shown in correspondence：

32. method as claimed in claim 30, which is characterized in that in 2 corresponding DMRS configuration informations of the DMRS types, CDM group numbers, port, the correspondence between symbolic number meet following table a line or multirow shown in correspondence：

33. method as claimed in claim 25, which is characterized in that configuring the DMRS configuration informations by RRC signaling can make Range, the workable range are determined based on the symbolic information of DMRS or DMRS maximums symbol numbers.

34. method as claimed in claim 25, which is characterized in that range workable for the DMRS configuration informations and wireless money The parameter association of DMRS maximum symbol numbers is indicated in the control signaling RRC of source.

35. a kind of receiving terminal, which is characterized in that including：

Receiving unit, the demodulated reference signal DMRS for receiving transmitting terminal transmission indicate information；DMRS instruction information institute The code division multiplexing CDM group informations of DMRS instruction information marker antennas port are stated, the CDM group informations include CDM group numbers；

Processing unit indicates information, aid demodulation data according to the DMRS that the receiving unit receives.

36. receiving terminal as claimed in claim 35, which is characterized in that DMRS instruction information is the transmitting terminal from multigroup DMRS configuration informations corresponding with current DMRS transmission plans are determined in demodulated reference signal DMRS configuration informations, and according to DMRS Configuration information obtains DMRS instruction information；Every group of DMRS configuration information includes a plurality of DMRS configuration informations.

37. receiving terminal as claimed in claim 35, which is characterized in that the CDM groups number be system in may it is occupied or Scheduling, is not used in the number of the CDM groups of transmission data.

38. receiving terminal as claimed in claim 37, which is characterized in that when the value of the CDM groups number information is 1, indicate CDM Group 1 is occupied or scheduling, when the value of CDM group number information is 2, indicates that CDM groups 1 and CDM groups 2 are occupied or dispatch, the CDM When the value of group number information is 3, indicate that CDM groups 1, CDM groups 2, CDM groups 3 are occupied or dispatch.

39. receiving terminal as claimed in claim 35, which is characterized in that further include the symbol of DMRS in the DMRS configuration informations Information.

40. the receiving terminal as described in any one of claim 37 to 39, which is characterized in that in the DMRS configuration informations, DMRS Class1 and the specific DMRS port mapping ruler of DMRS types 2 are as follows：

41. receiving terminal as claimed in claim 40, which is characterized in that in the corresponding DMRS configuration informations of the DMRS Class1, CDM group numbers, port, the correspondence between symbolic number meet following table a line or multirow shown in correspondence：

42. receiving terminal as claimed in claim 40, which is characterized in that in 2 corresponding DMRS configuration informations of the DMRS types, CDM group numbers, port, the correspondence between symbolic number meet following table a line or multirow shown in correspondence：

43. receiving terminal as claimed in claim 35, which is characterized in that configuring the DMRS configuration informations by RRC signaling can The range used, the workable range are determined based on the symbolic information of DMRS or DMRS maximums symbol numbers.

44. receiving terminal as claimed in claim 35, which is characterized in that range workable for the DMRS configuration informations with it is wireless The parameter association of DMRS maximum symbol numbers is indicated in resource control signaling RRC.

45. a kind of chip, which is characterized in that including processing unit and interface；

The processing unit is transmitting terminal as described in any one of claim 13~24 or such as in claim 35~44 The processing unit in receiving terminal described in one.

46. a kind of communication system, which is characterized in that including：

Transmitting terminal as described in any one of claim 13~24 and the reception as described in any one of claim 35~44 End.

47. a kind of computer storage media, for storing used in the transmitting terminal as described in any one of claim 13~24 Computer software instructions.

48. a kind of computer storage media, for storing used in the receiving terminal as described in any one of claim 35~44 Computer software instructions.