CN108809609B

CN108809609B - A kind of DMRS instruction and method of reseptance, transmitting terminal and receiving end

Info

Publication number: CN108809609B
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: 2019-07-09
Anticipated expiration: 2037-11-17
Also published as: CN108809609A

Abstract

This application discloses a kind of DMRS instruction and the received method and devices of DMRS, the described method includes: transmitting terminal determines DMRS configuration information corresponding with current DMRS transmission plan from multiple groups demodulated reference signal DMRS configuration information, and DMRS instruction information is obtained according to DMRS configuration information；Every group of DMRS configuration information includes a plurality of DMRS configuration information；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, can satisfy the demand of the data transmission of higher number, instruction expense can be further decreased.

Description

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

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 end.

Background technique

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 in (full name in English: Long Term Evolution, English abbreviation: LTE) system, single user (single user, SU) is most Big to support 8 layers of orthogonal DMRS port multiplexing, DMRS occupies 24 RE.Specific: 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 larger 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 end 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 end 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 On middle different resource unit (full name in English: Resource Element, English abbreviation: RE), 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 signal known, receiver carries out channel estimation for every transmission antenna, and sends data based on this reduction.

Channel estimation refers to compensation channel fading and noise and rebuilds the process for receiving signal, it utilizes transmitter Change with the RS of receiver precognition come the time domain and frequency domain for tracking channel.For example, the data in order to realize high-order multiaerial system Demodulation, LTE/-A system define demodulated reference signal (full name in English: Demodulation Reference Signal, English Referred to as: DMRS), the reference signal 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.

DMRS and user data use identical pretreatment mode, feature are as follows:

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), it is corresponded with antenna port, rather than physical antenna number, it is preceding 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, the scene of (full name in English: New Radio, English abbreviation: NR) support of newly eating dishes without rice or wine is more diversified, thus It can support various modes (pattern), for example, the transmission of adaptation different frequency range data, multiplex mode can have very big difference. Also, for further satisfaction larger capacity transmission demand, the maximum of the DMRS of data channel can support orthogonal data fluxion meeting Greater than 8, as orthogonal 12DMRS ports has been supported in 3gpp RAN1#88bis meeting.

In addition, all very low compared to the dual-mode antenna in LTE system, thus the MU dimension supported with clock synchronization of MU compared with Low, such as when MU is dispatched, allowing single user's maximum number of plies is 2 layers, 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 dimension 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 number, multiplexing Mode and mapping ruler are there are a variety of variations, and the DCI indicating mode for continuing to use LTE will cause very big expense, therefore in NR such as What instruction DMRS is a technical problem to be solved urgently.

Summary of the invention

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

Under the MU-MIMO scene of NR system, the orthogonal port for the CDM multiplexing that can be supported is different from LTE, maximum energy Enough numbers of plies for supporting to inform its distribution of terminal according only to a DMRS configuration information table to 12 orthogonal ports, therefore in LTE, The orthogonal port numbers of DMRS, sequence configuration, the mode of the information such as multiplex mode is no longer applicable in, and in the embodiment of the present application, designs multiple groups DMRS configuration information matches the different scenes DMRS transmission demand of future network (new radio, NR) respectively.

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

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

In the embodiment of the present application, current DMRS transmission plan is indicated by instruction information；Different DMRS is passed The corresponding maximum of transmission scheme can support orthogonal port number difference or corresponding DMRS pattern or corresponding DMRS Configuration Type not Together.

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

The length of the corresponding DMRS instruction information of the different DMRS transmission plan is different.

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

In a kind of implementation, orthogonal port number can be supported for different maximums, different groups of DMRS can be configured and match Confidence breath, this group of DMRS configuration information include a plurality of DMRS configuration information；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 with confidence Breath, the DMRS configuration information are the orthogonal port numbers of DMRS for allowing receiving end to know that it can be used, sequence configuration, multiplex mode etc. Deng to carry out correct data decoding.

In another implementation, what which configured for different DMRS patterns, in general, one Kind of DMRS pattern, which just corresponds 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 pattern 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 is configured for different DMRS patterns, receiving end 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 implementation of first aspect, DMRS configuration information, which can be by protocol conventions table, to be presented, 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 information；It include a plurality of DMRS inside one group of DMRS configuration information Configuration information is presented, referred herein as DMRS configuration information table with a table.

DMRS transmission plan corresponding with DMRS information is 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 instruction information can pass through DCI signaling 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 orthogonal port number to 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 Type (configuration type).

In one implementation, it in the DMRS configuration information table, is set according to a point column 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 column for being greater than 4 layers of transport layer Meter；

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

It further include the instruction information of total orthogonal port number in the DMRS configuration information table, 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 DMRS antenna orthogonal port set instruction information, or The CDM group information of DMRS antenna orthogonal port, or the information generated according to CDM size.It should be understood that total orthogonal port It is several identical as total orthogonal DMRS transmission number of plies.The CDM group information of DMRS antenna orthogonal port can for CDM group number or CDM group number or CDM group status information.

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

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

It wherein, further include the symbolic information of DMRS in the DMRS configuration information in DMRS configuration information.

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

Wherein, indicate that DMRS is maximum in range workable for the DMRS configuration information and radio resource control signaling RRC The Wire Parameters of symbol numbers.

Wherein when the DMRS maximum symbol numbers difference, the downlink control letter information DCI letter of DMRS port scheduling is carried out It enables length difference or DCI number of bits is different or the domain DCI is different.

Wherein, when carrying out single user SU scheduling using the DMRS configuration information, FDM scheduling is first carried out in 2 CDM groups Under the MIMO scene of NR system, the orthogonal port for the CDM multiplexing 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 other terminals dispatched jointly, so which position RE obtained It is occupied by the DMRS for using port of other terminals, 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 to know terminal The DMRS of which port is occupied, needs a kind of effective DMRS rate-matched indicating mode, in order to solve this technical problem, The application provides a kind of demodulated reference signal indicating means and method of reseptance, comprising:

Transmitting terminal generates demodulated reference signal DMRS and indicates information；The DMRS instruction 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 end and indicates information；Receiving end according to The DMRS indicates information, is not being carried out data demodulation in resource that DMRS is occupied.Specifically, receiving end needs to pass through downlink It controls information or media access control control unit receives the DMRS and indicates information

Receiving end 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 or port set state that this current non-receiving end uses, or need to be silent Resource unit, can be used for carrying the resource not occupied by DMRS in the resource of DMRS to obtain.

In a kind of implementation, receiving end also receives the instruction current DMRS and passes before receiving DMRS instruction information The DMRS transmission plan of transmission scheme indicates information；The different corresponding maximums of DMRS transmission plan can support orthogonal port number not Together or corresponding DMRS pattern or corresponding DMRS Configuration Type are different.

It should be understood that DMRS transmission plan is can to support orthogonal end by DMRS pattern or DMRS Configuration Type 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 scene for being 4,6,8,12 for maximum supported orthogonal port number, or for nonopiate The scene (scene of 2 scrambling codes) that port number is 8,12,16,24, namely orthogonal port number can be supported according to different maximums, point Corresponding DMRS instruction information is not configured, which is that receiving end 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 end can not avoid these resource units when data demodulation, To carry out correct data decoding.

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

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

In another implementation, instruction information can also for DMRS Configuration Type (congfigration type) come It is configured.

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

In a kind of implementation, receiving end needs to receive the DMRS instruction information sent in a manner of signaling and available The corresponding relationship between resource not occupied by DMRS in the resource of carrying DMRS.Signaling mentioned here is usually high-rise letter It enables, such as RRC signaling.

In another implementation, this receiving end is also stored with DMRS configuration information, that is, DMRS indicates information and can be used The corresponding relationship between resource not occupied by DMRS in the resource of carrying DMRS is in the DMRS configuration information being locally stored It can find.

DMRS configuration information in the embodiment of the present application further includes 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 orthogonal Port set instruction information or the CDM group information of DMRS antenna orthogonal port, or the information generated according to CDM size. The CDM group information of DMRS antenna orthogonal port is CDM group number or CDM group number or CDM group status information.

Wherein, in the orthogonal number of plies information of the DMRS, the orthogonal number of plies of the DMRS is the DMRS antenna in a CDM group The integral multiple of port number；The integral multiple of the continuous DMRS antenna port quantity of serial number in an either CDM group；Either one The value of the serial number of DMRS antenna port in a CDM group.In concrete implementation, DMRS number of plies information can be stepping quantization DMRS number of plies information.In the DMRS number of plies information of the stepping quantization, the DMRS number of plies can be the DMRS antenna 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 group, 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 number of plies can also be the sequence from small to large in a CDM group The integral multiple of line port number, for example, 2 layers and 4 layers can be quantified as CDM group { 1,2,5,7 } and { 3,4,6,8 }.These Information, can allow receiving end identify which resource unit be by this receiving end DMRS occupy, which resource unit be by The DMRS of other receiving ends of CDM multiplexing is occupied, and remaining resource unit is transmitted for data relevant to this receiving end, Therefore, this receiving end 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 the number of plies, example are specifically transmitted in receiving end 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 perhaps quantized into the transmission number of plies 1 downwards or indicate that the group is passed with 2 or 3 The defeated number of plies { 1,2,3,4 } then indicates that the quantized value of the transmission 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 the above principles, the embodiment of the present application DMRS indicates that 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 is configured in DMRS configuration information table, and indicates Information is indicated using DMRS instruction information (value) in DMRS configuration information table；The DMRS configuration information table can be with Similar in LTE, for example, the antenna port number (Antenna ports) in LTE, scrambling code indicates (scrambling Identity) and transmission the number of plies instruction (number of layers indication), it can also comprising DMRS port number, Port index, sequence generate at least one of information, CDM type, on this basis, the quantized value of the addition transmission number of plies.It should DMRS configuration information table can be stored on transmitting terminal and receiving end simultaneously, and transmitting terminal sends instruction information, Ying Li to receiving end Solution, transmitting terminal to receiving end be by send original DCI signaling in LTE (due to continuing to use the signaling of LTE, the DCI signaling Instruction information may not be named as, but it can be with indicated speed matching scheme), receiving end 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 ends use. That is, receiving end identifies which resource unit is used to the DMRS transmission of this receiving end, which resource unit is for CDM The DMRS transmission of other receiving ends of multiplexing, remaining resource unit are transmitted for data relevant to this receiving end, because This, this receiving end carries out data demodulation on corresponding resource unit.

In explicit signaling indication scheme, the corresponding relationship 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 table 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 table, therefore transmitting terminal and receiving end in addition to preserving DMRS configuration information table respectively Except, it also saves instruction information respectively and transmits the corresponding relationship 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 table, and transmitting terminal passes through explicit signaling Mode, rate configuration instruction information is sent to receiving end, receiving end is matched using the instruction information as indexing in corresponding relationship The quantized value that the corresponding transmission number of plies is searched in table is set, receiving end is by the quantized value of the transmission number of plies and the DMRS configuration information Table combines, and identifies which resource unit is used to be occupied by the DMRS of this receiving end, which resource unit is answered by CDM The DMRS of other receiving ends is occupied, and remaining resource unit is transmitted for data relevant to this receiving end, therefore, This receiving end 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 Corresponding relationship between information and the quantized value for transmitting the number of plies can also be indicated by individual signaling.

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

It is understood that in the scheme of either recessive instruction or dominant instruction, above-mentioned DMRS instruction information hair When being sent to receiving end, it can be and sent in a manner of independent signaling, be also possible to carrying and sent in downlink signaling, such as It sends, is not limited thereto in Downlink Control Information DCI.

In one implementation, the DMRS instruction information is determined whether to send by the number of code word (codeword). For example, triggering signaling if 1 codeword to send DMRS instruction information, 2 codeword do not send the signaling, reason then It is, there are the scene of SU and MU in 1 codeword when, but 2 codeword must be SU scene, 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 end (terminal), and information (RS, 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 position 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-matched and method of reseptance comprising:

Using 2 TRP of the non-QCL group under 2PDCCH scene, the silent non-QCL group oneself used of each TRP Carry out data transmission after the corresponding resource unit of DMRS, one of TRP there can be the DMRS of one or more QCL group；This Kind behavior can be default action；

In 1PDCCH scene, then transmitting terminal is needed to send DMRS instruction information to receiving end, DMRS instruction information refers to Show the corresponding resource unit of DMRS in one or more QCL groups that this transmitting terminal uses.

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

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

Second, under 2PDCCH scene, for different DMRS patterns, it is corresponding that DMRS pattern can be used in receiving end Include the DMRS configuration information table of DMRS instruction information, carries out rate-matched, it should be noted that DMRS pattern here is Refer to the DMRS pattern that the DMRS port in QCL group workable for the TRP is constituted.Or under 1PDCCH scene, the TRP of cooperation can The DMRS pattern constituted with the multiple QCL group 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 pattern either high-level signaling are selected according to maximum.

That in DMRS instruction information instruction is the DMRS in this implementation of DMRS antenna port set information Antenna port set information refers to the practical DMRS number of plies according to scheduled in current system, indicates occupied DMRS antenna port 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 dispatching the number of plies is 4 layers, instruction port set 1 is occupied, and when being greater 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 port this realization side of code division multiplexing CDM group information In formula, code division multiplexing CDM group information includes the port the CDM group information for the DMRS antenna port that the non-receiving end itself uses, Or the DMRS antenna port group letter that the DMRS antenna port group information that uses of receiving end itself and the non-receiving end itself use The sum of breath.

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

1, the position all DMRS RE can transmit data (SU)；

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

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

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

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

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

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

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 determining and current DMRS transmission plan pair from multiple groups demodulated reference signal DMRS configuration information The DMRS configuration information answered, and DMRS instruction information is obtained according to DMRS configuration information；Every group of DMRS configuration information include A plurality of DMRS configuration information；Transceiver sends the DMRS instruction information.

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

Processor generates demodulated reference signal DMRS and indicates information；The DMRS instruction information and maximum can support port Several or DMRS pattern is corresponding or DMRS Configuration Type is corresponding；

Transceiver sends the DMRS instruction information.

On the other hand, this application provides a kind of receiving ends, comprising:

Transceiver receives the demodulated reference signal DMRS that transmitting terminal is sent and indicates information；The DMRS instruction information is hair It penetrates end to be obtained according to DMRS configuration information, the DMRS configuration information is transmitting terminal according to current DMRS transmission plan from multiple groups It is determined in demodulated reference signal DMRS configuration information；Every group of DMRS configuration information includes a plurality of DMRS configuration information；

Processor indicates information according to the received DMRS of transceiver, obtains DMRS configuration information and aid demodulation number According to.

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

Processor generates demodulated reference signal DMRS and indicates information；The DMRS instruction 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 instruction information.

In another aspect, this application provides another receiving ends, comprising:

Transceiver, for receiving demodulated reference signal DMRS instruction information；The DMRS instruction 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, be also possible to 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, including processor and transceiver in the structure of base station, the processor is configured to 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 information or instruction transmitted by base station.May be used also the base station To include memory, the memory saves the necessary program instruction in base station and data for coupling 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 It include transceiver and processor in the structure at end.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 end；

The processing unit can be a chip, and software can be realized by hardware or be passed through to the processor It realizes, when passing through hardware realization, which can be logic circuit, integrated circuit etc.；When by software to realize, 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 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 medium, for being stored as used in above-mentioned base station Computer software instructions, it includes for executing program designed by above-mentioned aspect.

In another aspect, the embodiment of the present application provides a kind of computer storage medium, for being stored as used in above-mentioned terminal Computer software instructions, it includes for executing 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, can satisfy higher level data transmission 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 quasi- co-located QCL relationship, any in each port set between each DMRS port in each port set Any DMRS port in DMRS port and other any port sets meets the co-located Non-QCL relationship of non-standard；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, which comprises

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 Stream is specifically, one code word is mapped as the aerial panel and is assigned to by the same transmitting end equipment for each aerial panel 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 the DMRS port being fitted on, the method also 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 the DMRS port being fitted on, the method also includes, the same transmitting end equipments to the receiving end Equipment sends an instruction information, and the instruction information is used to indicate the multiple end DMRS for receiving device distribution 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, however, you can also not be limited to this.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 greater 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 To be applied to the scene (quantity of i.e. the multiple data flow is 3 and/or 4) that the quantity of data flow is 3 and/or 4, 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, comprising:

Multiple data flows are received by multiple DMRS ports, wherein the multiple DMRS port adheres at least two ports separately Group meets quasi- co-located QCL relationship, any DMRS port in each port set between each DMRS port in each port set Meet the co-located Non-QCL relationship 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 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 also 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, however, you can also not be limited to this.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 greater 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, comprising:

Multiple data flows are received by multiple DMRS ports, wherein the multiple DMRS port belongs to same port group, and Meet quasi- co-located QCL relationship 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 to a receiving device by multiple demodulated reference signal DMRS ports Stream, wherein the multiple DMRS port adheres at least two port sets separately, meets between each DMRS port in each port set Quasi- co-located QCL relationship, any DMRS port in any DMRS port and other any port sets in each port set meet The non-co-located Non-QCL relationship 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 also used to, and Xiang Suoshu receiving device sends an instruction information, The instruction information is used to indicate the multiple DMRS port for receiving device distribution.

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

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 quasi- co-located QCL relationship between each DMRS port in each port set, in each port set Any DMRS port in any DMRS port and other any port sets meets the co-located Non-QCL relationship of non-standard；

Recovery module, for for each port set at least two port set, according to the multiple end DMRS 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 also used 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, comprising:

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

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

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, quasi- co-located QCL relationship, appointing in each port set are met between each DMRS port in each port set Any DMRS port in one DMRS port and other any port sets meets the co-located Non-QCL relationship of non-standard；It is the multiple DMRS port is assigned to same transmitting end equipment, for each port set, which comprises

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 also includes the transmitting end equipment is sent to the receiving device One instruction information, the instruction information are used to indicate the multiple DMRS port for receiving device distribution.

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 quasi- co-located QCL relationship 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 relationship 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 a code word being mapped as being in the multiple DMRS port and is somebody's turn to do for each port set 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 also includes the transmitting module is also used to the receiving device An instruction information is sent, the instruction information is used to indicate the multiple DMRS port for receiving device distribution.

On the whole, the embodiment of the 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 quasi- co-located QCL relationship, any in each port set between each DMRS port in each port set Any DMRS port in DMRS port and other any port sets meets the co-located Non-QCL relationship of non-standard, for each port Group, which comprises

Number corresponding to the DMRS port that one code word is mapped as 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 also includes Xiang Suoshu receiving device sends an instruction information, described Indicate that information is used to indicate the multiple DMRS port for receiving device distribution.

In a kind of possible design, above-mentioned multiple DMRS ports can distribute to same transmitting end equipment；It can also divide The muti-piece 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, such as but unlimited In the various feasible combinations of above-mentioned several ways.

Correspondingly, the embodiment of the invention also provides a kind of data receiver methods, comprising:

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 quasi- co-located QCL relationship, each port are met between each DMRS port in each port set Any DMRS port in any DMRS port and other any port sets in group meets the co-located Non-QCL relationship of non-standard；

For each port set in the same port group or at least two port sets, receiving device is according to 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 receiving device may not need the above-mentioned multiple DMRS ports of concern and come from receiving device side One transmitting end equipment, or the muti-piece aerial panel from a transmitting end equipment, or come from multiple transmitting end equipments.

QCL (Quasi-Co-Location, quasi- co-located) is commonly used in describing similar large-scale fading 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 fadings 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 usually 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 relationship between port, any DMRS port in each port set and any end DMRS in other any port sets Mouth meets Non-QCL relationship.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 into 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 into 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 characteristic, such as with different large-scale fadings, 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 characteristic will be had by the wireless transmission that the DMRS port in the identical port set carries out by penetrating end equipment, such as with phase As large-scale fading, or be directed toward similar direction in space.

The above-mentioned related content that DMRS port is divided into multiple port sets can be with reference to the prior art, for example, can be Before transmitting end equipment and receiving device factory, 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 muti-piece 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 are a receiving device service 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 integrate at one or more It is executed on reason device, program can also be executed by one or more processor to execute.

Detailed description of the invention

Technical solution in ord to more clearly illustrate embodiments 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, it can also be obtained according to these attached drawings other 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 to indicate 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 to indicate 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 to indicate 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 to indicate 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 to indicate 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 to indicate 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 to indicate 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 to indicate 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 to indicate 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 to indicate 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 to indicate 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 to indicate 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 to indicate 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 end 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 end.

Specific embodiment

Firstly, simply being introduced the relational language being referred to herein, 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 be used as the basic unit that dispatch terminal carries out resource allocation, 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 multiple subcarriers and time domain continuous on frequency domain Interval, TI) composition.In different scheduling processes, the size of resource unit be may be the same or different.Wherein, here TI can be the Transmission Time Interval (transmission time interval, TTI) in LTE system, be also possible to symbol The short TTI, the slot or miniature time slot being also possible in 5G system of the short TTI of grade or the big subcarrier spacing in radio frequency system (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 is by 12 continuous subcarriers (number is 0~11) on frequency domain and 14 symbol (numbers 0 in time domain ~13) it forms.In Fig. 2, abscissa indicates time domain, and ordinate indicates 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 or its modification provided herein are 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 by any way such as pilot patterns described in this application or its modification, should belong to the application protection scope Within.

One DMRS port group may include one or more DMRS ports.Each end in the application, in DMRS port group Identical running time-frequency resource is multiplexed by CDM mode 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 above a variety of methods, such as OCC+CS.Related multiple reference signals are by CDM mode multiplexing time-frequency resource 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 referred to or The maximum value of the orthogonal port number of the supported DMRS in base station.

In the application, it is 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 for describing 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 "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".

Technical solution provided by the present application is introduced with reference to the accompanying drawing.

Technical solution provided by the present application can be applied to various communication systems, such as current 2G, 3G, 4G communication system, And future evolution network, such as 5G communication system.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 system.

It should be noted that may include Machine To Machine (machine to machine, M2M), equipment in 5G standard To machine (devoice to machine, D2M), macro micro- communication, enhanced mobile Internet (enhance mobile Broadband, eMBB), ultrahigh reliability (ultra reliable&low latency is 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: the 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 also can be applied to In the scenes such as the communication between terminal and terminal in 5G communication system or the communication between base station and base station.

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), it is also possible to 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 network or the network equipment in the PLMN network 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 unit, the station UE, movement station, Mobile station, remote station, remote terminal, mobile device, UE terminal, terminal, wireless telecom equipment, UE agency or UE device etc..It connects Entering terminal can be cellular phone, wireless phone, session initiation protocol (session initiation protocol, SIP) electricity 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, calculate equipment or be connected to radio modem its Its processing equipment, mobile unit, wearable device, the terminal in the following 5G network or the end in the PLMN network of the following evolution End etc..

The common hardware framework of base station 100 is illustrated.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 according to need and dismantle use.It should be noted that base station 100 is also during specific implementation Other common hardware frameworks can be used, and are 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 subsystem 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, Perhaps certain components are combined and perhaps split certain components or different component layouts.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 functional modules such as tooth module or device, details are not described herein.

Further, processor 180 respectively with RF circuit 110, memory 120, voicefrequency circuit 160, I/O subsystem 170, And power supply 190 is all connected with.I/O subsystem 170 connects with other input equipments 130, display screen 140, sensor 150 respectively It connects.Wherein, RF circuit 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 It is stored in the software program and module of memory 120, by running thereby executing 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 subsystem 170 is used to control 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, thus 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, also can be applied to downlink 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 end obtains DMRS.

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

S101: transmitting terminal determination from multiple groups demodulated reference signal DMRS configuration information is corresponding with current DMRS transmission plan DMRS configuration information, and according to DMRS configuration information obtain DMRS instruction information；Every group of DMRS configuration information includes more DMRS configuration information.

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

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

S103: receiving end receives the DMRS and indicates information.

S104: the DMRS indicates information based on the received for receiving end, 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 end can be base station. If the technical solution is applied in downlink transfer scene, transmitting terminal can be base station, and receiving end can be terminal.

Maximum in the corresponding DMRS configuration information of the different DMRS transmission plan 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 information is not configured, which is the orthogonal port DMRS for allowing receiving end to know that it can be used Number, sequence configuration, multiplex mode etc., to carry out correct data decoding.

In a kind of implementation of first aspect, DMRS configuration information, which can be by protocol conventions table, to be presented, 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 information；DMRS transmission plan corresponding with DMRS configuration information 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 signaling or media access control control unit (media access control control element, MAC CE it) sends.

In one implementation, it in the information table, is designed according to a point column 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 column design for being greater than 4 layers of transport layer；

It further include the instruction information of total orthogonal port number in the DMRS configuration information, 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 DMRS antenna orthogonal port set instruction information, or The CDM group information of DMRS antenna orthogonal port, or the information generated according to CDM size.It should be understood that total orthogonal port It is several identical as total orthogonal DMRS transmission number of plies.

The quantized value for why using the DMRS orthogonal transmission number of plies, is because if to indicate the specific orthogonal transmission in receiving end 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 orthogonal port number, and 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 pattern 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 table in the present embodiment one, each DMRS configuration information table and maximum can support orthogonal port number to be associated with, and perhaps for different DMRS pattern or be directed to Different DMRS Configuration Types designs different DMRS configuration information tables；Maximum can support orthogonal port number or DMRS Pattern DMRS Configuration Type can indicate DMRS transmission plan；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 table is so that in SU or MU-MIMO, single terminal (UE) maximum can be supported just Handing over port number is the DMRS configuration information table of 4 designs.

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 in table with order Rank) 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 Handing over port index (port index) is 0-3 (port 0-3).

The combination of port 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), Lai Zengjia dispatching flexibility, although having arranged combination has been able to satisfy tune Degree demand.

DMRS configuration information table shown in table 1 is suitable for orthogonal DMRS and realizes maximum 4 streams/layer data transmission or Fig. 7 pairs Answer pattern (2 symbol of config.1 shown in 1 symbol 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 table in the present embodiment is right according to LTE Table Design (that is, dividing column with codeword number) The value value answered needs the instruction expense of 3bit.

It should be understood that the port index in the DMRS configuration information table is a kind of representation, it is only for example It is bright, it can also be according to actual needs 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 Handing over port number is the DMRS configuration information table of 6 designs.

Table 2

6 ports DMRS of maximum

Wherein the instruction information of DMRS configuration information or index are indicated with Value；For example, the instruction of DMRS configuration information is believed When ceasing Value=0, indicate that terminal supports that the number of transport layer (Rank) is 1, corresponding orthogonal port index (port It index) is 0；When the instruction information Value=10 of DMRS configuration information, 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.

The combination of port 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), Lai Zengjia dispatching flexibility, although having arranged combination has been able to satisfy tune Degree demand.

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

DMRS configuration information table in the present embodiment is right according to LTE Table Design (that is, dividing column with codeword number) The value value answered needs 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 Handing over port number is the DMRS configuration information table of 8 designs.

Table 3

8 ports DMRS of maximum

Wherein the instruction information of DMRS configuration information is indicated with Value；For example, the instruction information of DMRS configuration information When Value=0, indicate that terminal supports that the number of transport layer (Rank) is 1, corresponding orthogonal port index (port It index) 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.

The combination of port 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), Lai Zengjia dispatching flexibility, although having arranged combination has been able to satisfy tune Degree demand.

DMRS configuration information table as shown in table 3 is suitable for orthogonal DMRS and realizes maximum 8 streams/layer data transmission or Fig. 9 Corresponding pattern (2 symbol 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 table of 12 designs.

Table 4

12 ports DMRS of maximum

Wherein the instruction information of DMRS configuration information is indicated with Value；For example, the instruction information of DMRS configuration information When Value=0, indicate that terminal supports that the number of transport layer (Rank) is 1, corresponding orthogonal port index (port It index) is 0；For another example as the instruction information Value=24 of DMRS configuration information, 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.

The combination of port 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), Lai Zengjia dispatching flexibility, although having arranged combination has been able to satisfy tune Degree demand.

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

DMRS configuration information table in the present embodiment is right according to LTE Table Design (that is, dividing column with codeword number) The value value answered needs 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 table can satisfy the demand of different scenes in NR system.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 can also be DMRS pattern Configuration Type, referred to as DMRS Configuration Type (configuration type) is come the different DMRS configuration information tables that design, before being transmitted, according to Different configuration type information selections switches in different information tables.

Configuration type is divided to for two kinds, corresponding DMRS configuration information table 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 table shown in 1~table of table 4 and different DMRS pattern are corresponding, Perhaps 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 orthogonal 4,6,8,12 or DMRS of port number Configuration Type 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 table to column design method, divides column 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 column of left and right greater 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 end carries out a point column.

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 column are that orthogonal port number is less than or equal to 8, and the column of the right one are that orthogonal port number is greater than 8.

Table 5

Divide column according to some proportion point column of total port number

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 column with maximum, this It is a kind of signal, in the embodiment of the present application, there can also be others to divide column mode, be the biography according to UE as shown in table 6 and table 7 The division of the defeated number of plies (RANK) Lai Jinhang, principle are exactly that the line number for the effective information for arranging table or so two 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 number that DMRS configuration information table shown in table 8-0 is supported is 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 information, Ke Yiyi Orthogonal port number can be supported perhaps to bind with pattern according to maximum or according to the instruction of high-level signaling, such as RRC signaling, from Corresponding sublist is selected in the total information table.For example, the corresponding total orthogonal port number of value0-7 is that 4, value0-13 is corresponded to always just It is that correspond to always orthogonal port number be 12 to 8, value0-28 that hand over port number, which be the corresponding total orthogonal port number of 6, value0-19,.

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 instruction reduces 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 information of identical DMRS Configuration Type is designed into a summary table, is selected by DMRS symbolic information.

Specifically, may include the symbol letter of leading (Front-loaded, FL) DMRS in DMRS configuration information table 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 group may be used as rate matching information.

Symbol numbers (symbol number) one in table 8-1 and table 8-2 arrange, and respectively correspond 1 symbol and 2 symbols 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, the beneficial effect is that can by DCI instruction form 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, respectively corresponds 1 symbol FL DMRS With 2 symbol FL DMRS.In one implementation, symbol numbers can be expressed as 0 and 1, such as 0 corresponding 1 symbol FL DMRS, and 1 corresponding 2 Symbol FL DMRS or 1 symbol are expressed as single symbol and 2 symbols are expressed as double symbols.Specific implementation In can be there are many representation method, the embodiment of the present application is without limitation.

In another implementation, the column of symbol number mono- can not be added in DMRS configuration information table, but Implicit indication is directly carried out by value value.It is removed for example, can be arranged 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 symbol of 1 symbol FL DMRS and 2 by indicating value value to receiving end The switching at runtime of number FL DMRS.

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

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 expense.

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 Type of 1 symbol described in dynamic dispatching or the corresponding DMRS of 2 symbols match Set type.

For example, RRC signaling can indicate the corresponding table of 1 symbol FL DMRS of activation, such as value in 8-2 for table 8-2 0-22 (i.e. symbol number=1), or indicate that whole table can be used, (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 be used 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 indicate 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 state is 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 method for specific RRC configuration this In without limitation.

In another implementation, the enabled of sub-table can be bound with other RRC signalings, such as can be with RRC middle finger 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, representing the maximum symbol numbers of FL DMRS is 1, i.e., system is only The FL DMRS of 1 symbol is called, at this point, the corresponding state of 1 symbol FL DMRS in table 8-2 is used only in receiving end and transmitting terminal, such as Value=0-22.When DL-DMRS-max-len=2, representing the maximum symbol numbers of FL DMRS is 2, i.e. system can To call the FL DMRS pattern of 1 symbol and the FL DMRS of 2 symbols, at this point, receiving end and transmitting terminal can be used 1 in table 8-2 Symbol and the corresponding state of 2 symbol FL DMRS, i.e. state in whole table can be used.

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

Example IV

The specific implementation that will be described method provided by the present application in the present embodiment and be applied to various NR scenes.Specifically , in irrelevant joint transmission (Non-coherent joint transmission, NC-JT) 2PDCCH or 1PDCCH Under scape, the DMRS configuration information table of multiple and pattern binding is 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 scene, and two These port combinations can be indicated to UE by two DCI in PDCCH scene.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 scheme, as seen in figures 11 or 12, and there may be three kinds of port by configuration type 2 Mapping scheme, 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, Group basis is can be only positioned in the same group with the port of group code division multiplexing.

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

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 subset 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 subset 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 subset grouping.

Current embodiment require that port is selected to form port combinations, thus each difference from different group Port grouping then will form different port combinations.It is with one of port mapping scheme under various configurations below Example designs DMRS configuration information table.

For example, if Figure 16 is NC-JT pattern and port mapping schematic diagram, 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}。

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

Table 9

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

For the 2PDCCH scene for supporting NC-JT as shown in figure 16, the DMRS configuration information table that table 10 is illustrated is illustrated in table 4 DMRS configuration information table on the basis of, left column increases the correspondence row of value=25~32 value, and right column increase value value =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}。

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

Table 11

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

For the 2PDCCH scene for supporting NC-JT as shown in figure 17, the DMRS configuration information table that table 12 is illustrated is illustrated in table 3 DMRS configuration information table 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}。

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

Table 13

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

For the 2PDCCH scene for supporting NC-JT as shown in figure 28, the DMRS configuration information table that table 14 is illustrated is illustrated in table 2 DMRS configuration information table 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 } to form for TRP1, TRP2 uses port { 1,3 }.

DMRS configuration information table for the 1PDCCH scene for supporting NC-JT as shown in figure 19, table 15-1 signal is shown in table 1 On the basis of the DMRS configuration information table 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

DMRS configuration information table for the 2PDCCH scene for supporting NC-JT as shown in figure 19, table 15-2 signal is shown in table 1 On the basis of the DMRS configuration information table 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, it is being directed to different NR scene or transmission demand When, transmitting terminal selects suitable DMRS configuration information wherein, and obtains DMRS instruction letter according to the DMRS configuration information of selection Receiving end is sent to after breath.

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

For the ease of base station scheduling, under MU-MIMO scene, receiving end specific for one, 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 rule of CDM again. Consider simultaneously comprising the state of SU and MU in DMRS port instruction form, 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 group 1 includes that port is { 0,1 }, and CDM group 2 includes that port is { 2,3 }；

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

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

For SU, transmitting terminal can be allocated the DMRS port of receiving end 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 ruler changes, in example DMRS port number distribution may change, but scheduling rule will not change.

CDM priority scheduling: for receiving end, DMRS port is preferentially dispatched from a CDM group, when CDM group middle-end slogan After being fully occupied, then dispatch 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 end be called 2 layers when, scheduling port can be 0,1 (or 2,3), i.e., Dispatching port is in the same CDM group；When receiving end be called 3 layers when, scheduling port can be 0,1,2, i.e. CDM group 1 is complete Then ministry dispatching is dispatching the port 2 in CDM group 2.It can be presented as in specific table 16-1 such as downlink status information.

Table 16-1DMRS Class1 example

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 end be called 4 layers when, scheduling port can be 0, Isosorbide-5-Nitrae, 5, i.e., Dispatching port is first from the same CDM scheduling in group；When receiving end be called 5 layers when, scheduling port can be 0, Isosorbide-5-Nitrae, 5,2, I.e. CDM group 1 is all dispatched, then the port in scheduling CDM group 2.It can be presented as in specific such as table 16-2 such as downlink shape State information:

Table 16-2 DMRS Class1 example

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

2 example of table 16-3 DMRS type

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

2 example of table 16-4 DMRS type

FDM priority scheduling: for receiving end, DMRS port dispatches group scheduling across CDM first, when each CDM group has 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 far as possible in each CDM group.Such as when 3 ports are called, for type 2,3 It is each in CDM group to call a port.The DMRS port that the program has the characteristics that each CDM group is used when SU scheduling is average, So that power is average in each CDM group.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 end be called 2 layers when, scheduling port can be 0,2, i.e., preferentially across CDM group scheduling port；When receiving end be called 3 layers when, scheduling port can be 0,1,2, i.e., CDM group 1,2 by it is each scheduling 1 hold Mouthful, then recall the port in CDM group 1.As shown in table 16-5:

Table 16-5 DMRS Class1 example

For 2 symbol DMRS type 1, when receiving end be called 2 layers when, scheduling port can be 0,2, i.e., preferentially Across CDM group scheduling；When receiving end 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 far as possible of CDM group.As shown in table 16-6:

Table 16-6 DMRS Class1 example

For 1 symbol DMRS type 2, when receiving end be called 3 layers when, scheduling port can be 0,2,4, i.e., CDM group 1,2,3 is fully occupied 1 DMRS port；When receiving end be called 4 layers when, scheduling port can be for 0,2,4,1 CDM group 1,2,3 is occupied used, then reschedules the port in CDM group 1 again.As shown in table 16-7:

2 example of table 16-7 DMRS type

For 2 symbol DMRS type 2, when receiving end be called 3 layers when, scheduling port can be 0,2,4,；When When receiving end 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 example

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

2 example of table 16-9 DMRS type

Contiguous port number scheduling: for receiving end, DMRS port is successively carried out continuously tune 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 It number 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 Table comprising 1 symbol and 2 symbol DMRS type 1 (or type 2), there may be CDM priority scheduling, FDM are preferential 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 scheduling and FDM priority scheduling increase and dispatch flexible or spectrum efficiency.As shown in table 16-10:

Table 16-10 DMRS Class1 example

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

Table 16-11 DMRS Class1 example

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 rules or more can be used in table for 1 symbol or 2 symbol FL DMRS configuration The combination of kind rule.Such as type 21 symbol using elder generation FDM scheduling rule, and for 2 symbols of type 2 for Scheduling rule of two CDM groups using 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 type

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

In conclusion CDM group information can be added in DMRS configuration information table provided by the embodiments of the present application, 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 correspond to DMRS type 2.Here table 17-1 and 17-2 is divided into two according to codeword number Column to save bit expense, 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 configuring for every kind of 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-matched here can be occupied CDM in current system The number of group perhaps can be the occupied assembled state of CDM group or can be occupied CDM group in current system Number (number of co-scheduled CDM groups) mode of the CDM group provided in serial number, table 17-1 and table 17-2 It is merely illustrative.For the two methods of CDM group number or occupied assembled state of CDM, method in previous embodiment can be used. For occupied CDM group serial number mode, a kind of implementation method is, when 1 CDM group is occupied, RMI is in corresponding table " 1 " indicates that CDM group 1 is occupied, and when 2 CDM groups are occupied, RMI is that " 1,2 ", expression CDM group 1,2 is occupied in corresponding table With, when 3 CDM groups are occupied, in corresponding table RMI be " 1,2,3 ", indicate that CDM group 1,2,3 is occupied, when specific implementation, The number of occupied CDM group can change with the corresponding relationship of CDM group serial number, 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 a part in table, to save the expense of DCI.For example, when the current DMRS maximum symbol numbers of system are 1 symbol, The only corresponding state of 1 symbol, the i.e. corresponding state of symbol number=1 in configuration form in certain scheduling, when system notifies Whole states when current DMRS maximum symbol numbers are 2, in configuration form.The method of table configuration can be implemented for front The scheme provided in example, such as using a part of independent RRC signaling selection table, such as the corresponding shape of symbol number=1 State, or can be bound with the signaling of DMRS maximum symbol numbers with the configuration of table, implementation above can be used in specific implementation Method in example, is not repeated herein.It can not include DMRS symbol numbers information in another implementation method, in table, i.e., Symbol number mono- is 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, the letter of the corresponding 2 symbol DMRS type 1 of value=11-34 Breath.

It optionally, can simultaneously include a variety of scheduling rules in table.Such as in table 17-1, under one codeword, It is 2 that value=2, which corresponds to receiving end 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 end current orthogonal port number, port numbers 0,2 and the preferential scheduling rule 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 scheduling, and receiving end can be according to port numbers at this time Scheduling rule recessiveness is known currently for SU state；Or value=2 can be retained, value=35 is removed, with CDM priority principle It is scheduled, promotes spectrum efficiency.Specifically, value=0-34 is a kind of side for meeting basic dispatching requirement in table 17-1 Case, value=35-38 are that different dispatching methods can not include value=35-38 in a kind of implementation method in table To reduce expense, or can by the one or more of value=35-38 and one or more items in value=0-34 into Row replacement, 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, CDM preferential scheduling rule 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 perhaps it is a variety of meet flexible dispatching or save open The demand of pin.Specifically, value=0-70 is a kind of scheme for meeting basic dispatching requirement, value=71- in table 17-2 81 be different dispatching methods, can not include value=71-81 in specific implementation, in table to reduce expense, Huo Zheke To replace the one or more of value=71-81 with one or more items in value=0-70, 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 number saving DCI expense by codeword. In the specific implementation, can not be classified by codeword number, for example, the orthogonal port number of plies in receiving end can be passed through (the orthogonal port number of DMRS) is divided into multiple column, saves DCI expense；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 expense；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 in receiving end less than or equal to 4 layer states, and the value value more than or equal to 39 corresponds to two in table 17-1 State (the orthogonal number of plies in receiving end be greater than 4 layers) in codeword, a kind of implementation method are shown in Table shown in lattice 16-3 and 17-4, specifically Perhaps 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, may include the instruction of SU and MU state 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 port composite type

2 example of table 17-2 DMRS port composite type

1 example of table 17-3 DMRS port composite type

2 example of table 17-4 DMRS port composite type

In LTE, when MU-MIMO, maximum supports 4 orthogonal ports, these ports to use identical RE resource.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 Say that rate-matched just refers to that terminal needs to know which RE does not have data transmission in its running time-frequency resource, to avoid when data demodulation These RE, to carry out correct data decoding.For example, some RE may quilt in the running time-frequency resource of terminal in downlink transfer 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 position 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 problem 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 guaranteed by using orthogonal DMRS port (port) between terminal Between orthogonality time division multiplexing (time division multiplexing, TDM), frequency division multiplexing (frequency can be used 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, problem above is just not present, this is when port1 is orthogonal by CDM with port2 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 other terminals dispatched jointly, so which RE obtained Position is occupied by the DMRS for using port of other terminals, 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 problem of MU-MIMO is by guaranteeing what the DMRS of scheduling 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 problem, this design are properly termed as the MU-MIMO transparent to terminal.However, as previously described, in LTE in order to Guarantee this transparent design, so that MU-MIMO is only capable of supporting maximum 4 orthogonal ports.

In NR system, 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 is 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 a kind of DMRS rate matching of new MU-MIMO designs 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 will cause biggish frequency spectrum resource waste.Such as in Figure 20 UE0 using port 1~ Port 4, UE1 use 5~port of port 8, and the corresponding RE in 9~port of port, 12 position does not all transmit data, will result in pole The big wasting of resources.

It second, directly notifies the port serial number of other UE of UE: when other UE are occupied compared with multiport, will cause biggish Signaling overheads, if UE0 uses port 1~2, when UE1 uses 5~port of port 8, it is necessary to be used to UE0 notice UE1 Port 5~8, and to port 1-2 used in UE1 notice UE0, this mode, the signaling overheads needed is especially big.

Specifically, 1/0bit map is needed to indicate DMRS port group 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 Count and use port assignment rule constraint: the number of plies of such as 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 more effective data transmission, the application proposes that a kind of and maximum can support port number or DMRS CDM port set number or the corresponding rate-matched of DMRS configuration type in the pattern or pattern Indication scheme, to match 5G DMRS transmission demand.

DMRS rate-matched provided by the present application instruction and received method are illustrated below.

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

S201: transmitting terminal generates demodulated reference signal DMRS and indicates information；The DMRS instruction 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 of instruction quantization, or currently has been used end Mouth group combinations of states, or the orthogonal transmission number of plies or port set state that this current non-receiving end uses, or need to be by silent resource Unit, to indicate to can be used for carrying the resource not occupied by DMRS in the resource of DMRS.

In one implementation, before the transmitting terminal transmission DMRS instruction information, further includes:

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

Specifically, different maximums can support port number or DMRS pattern (or CDM port set number in DMRS pattern), Or DMRS Configuration Type is indicated using different DMRS instruction information, for example, for for orthogonal port, maximum can be propped up The MU-MIMO scene that port number is 4,6,8,12 is 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 state information respectively, these DMRS rates At least there are two types of be different matching status.

DMRS instruction information is then that receiving end is allowed to know rate matching state, that is, in running time-frequency resource, which resource unit It there are no by the DMRS occupancy of other receiving ends, but is transmitted for data, receiving end can be when data demodulation Correct data decoding is carried out on these resource units.

In another implementation, DMRS instruction information, which is directed in different DMRS pattern or DMRS pattern, includes The number of DMRS port group (for example can have two tables to respectively correspond in DMRS pattern containing 2 or 3 DMRS ports Group) come what is configured, in general, a kind of DMRS pattern, which just corresponds to, a kind of supports the maximum field MU-MIMO that can support port number Scape, the DMRS pattern 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 end can also be allowed to indicate, in running time-frequency resource Interior, which resource unit is used for DMRS transmission not yet, but transmits for data, and receiving end can correctly be counted According to demodulation.

In another implementation, DMRS instruction information can also be directed to DMRS Configuration Type (congfigration Type it) is configured.

In concrete implementation, therefore, in the embodiment of the present application for convenience of description, above-mentioned DMRS instruction information can be used Value value indicates, can be the DMRS port group for including in N bits, wherein N and DMRS pattern when specific implementation 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 the DMRS configuration type1 comprising 2 DMRS port groups (M=2), N 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 is the example of a DMRS instruction information, and the DMRS instruction information of the present embodiment is mainly Indicate that concrete form is not limited to following form as rate-matched, therefore with Rate matching instruction information, it can To be table, perhaps number or formula, wherein there is state in P, the number of P can be with full N bits (with full all signaling shapes State), perhaps it is greater 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 comprising DMRS speed 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 subsequent 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 group indicate.

Table 18

Rate matching indicates that 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 instruction information is determined from DMRS configuration information, described It further include the instruction information of total orthogonal port number in DMRS configuration information, 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 orthogonal port, or The CDM group information of DMRS antenna orthogonal port, or the information generated according to CDM size.

In concrete implementation, the quantized value of the orthogonal transmission number of plies can be DMRS number of plies information or DMRS antenna The CDM group information of port aggregate information or DMRS antenna port.In the DMRS number of plies information, the DMRS number of plies is a CDM The integral multiple of DMRS antenna port quantity in group.For example, for the DMRS pattern 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 number of plies can also be continuous DMRS antenna port quantity when the sequence from small to large in a CDM group Integral multiple, for example, 2 layers and 4 layers can be quantified as CDM group { 1,2,5,7 } and { 3,4,6,8 }.These information, are ok Receiving end is allowed to identify which resource unit is used to the DMRS transmission of this receiving end, which resource unit is multiple for CDM The DMRS of other receiving ends is transmitted, and remaining resource unit is transmitted for data relevant to this receiving end, therefore, This receiving end 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 state or the state used: rate matching state information indicates each DMRS port group State, RM content is 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 port that defines of NR most Small value, v=1,2 ... are the PDSCH current orthogonal transmission number of plies (being 8ports in LTE).Stepping quantization is carried out to v, to save The DCI signaling overheads 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 group continuously port numbers number or maximum port serial number (assuming that y=0, only when in each CDM group Port number be all it is 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 content changes 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 group or it is compiled since 1 Number quantization (assuming that y=0, port is numbered from 1).

When 2.3 DMRS group inner end slogans sort from small to large, since small, continuous DMRS number 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 end 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 indicates the quantized value 4 of the orthogonal transmission number of plies with 0, therefore instruction can be reduced and opened Pin.

2.4 DMRS group status informations or DMRS group serial number or group #；Or DMRS group number, wherein the CDM group Number is the CDM group 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 pattern 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 is configured in DMRS configuration information table, and DMRS Information is indicated using DMRS instruction information (value) in DMRS configuration information table to be indicated；The DMRS configuration information table Can be similar in LTE, for example, the antenna port number (Antenna ports) in LTE, scrambling code 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 type, on this basis, add the amount of the orthogonal transmission number of plies Change value.The DMRS configuration information table can be stored on transmitting terminal and receiving end simultaneously, and transmitting terminal sends instruction letter to receiving end Breath, it should be understood that (due to continuing to use the signaling of LTE, which believes original DCI signaling transmitting terminal into receiving end transmission LTE Order may not be named as instruction information, but it can be with indicated speed matching scheme), receiving end 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 ends use Mouthful.That is, receiving end identifies which resource unit is used to the DMRS transmission of this receiving end, which resource unit is to be used for The DMRS transmission of other receiving ends of CDM multiplexing, remaining resource unit are transmitted for data relevant to this receiving end, Therefore, this receiving end carries out data demodulation on corresponding resource unit.

In explicit signaling indication scheme, the corresponding relationship of above-mentioned DMRS instruction information and rate matching state information is logical Cross independently of the DMRS configuration information table in LTE and exist namely DMRS instruction information and rate matching state information between Corresponding relationship is not lain in DMRS configuration information table, therefore transmitting terminal and receiving end in addition to preserving DMRS with confidence respectively It ceases except table, also saves corresponding relationship 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 table, and transmitting terminal passes through Rate configuration instruction information is sent to receiving end by the mode of explicit signaling, receiving end using DMRS instruction information as indexing, Search corresponding rate matching state information in corresponding relationship allocation list, receiving end by the rate matching state information with it is described DMRS configuration information table combines, and identifies which resource unit is used to be occupied by the DMRS of this receiving end, which resource Unit is occupied by the DMRS of other receiving ends being multiplexed CDM, and remaining resource unit is for relevant to this receiving end Data transmission, therefore, this receiving end carries out data demodulation on corresponding resource unit.

It should be noted that the DMRS instruction information of identical value can correspond to the quantized value of the different orthogonal transmission numbers of plies, Therefore the corresponding relationship 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 the orthogonal transmission number of plies of quantization is exactly to indicate information instruction by DMRS for dominant indication scheme , receiving end will receive two signalings, and one is the DMRS DCI signaling in LTE, and one is orthogonal for transmitting current quantisation The DMRS instruction information of the transmission number of plies or the signaling comprising DMRS instruction information (herein and are properly termed as rate Matching indication signaling).

It is understood that in the scheme of either recessive instruction or dominant instruction, above-mentioned DMRS instruction information hair When being sent to receiving end, it can be and sent in a manner of independent signaling, be also possible to carrying and sent in downlink signaling, herein It is not construed as limiting.

Above-mentioned transmission DMRS indicates that information, and instruction DMRS indicate both information and the quantized value of the orthogonal transmission number of plies Between corresponding relationship 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 end or this Any two kinds or three kinds of combination of three kinds of signalings.

In one implementation, the signaling is determined whether to send DMRS instruction letter by the number of code word (codeword) Breath.For example, triggering signaling if 1 codeword to send DMRSDMRS instruction information, 2 codeword do not send the letter then 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 end (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 oneself information (such as end of oneself The information such as mouth, the number of plies) directly learn oneself DMRS the position RE, these RE are avoided in data decoding.Therefore in SU And the rate matching problem of DMRS is not present.

S203: receiving end 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 end receives DMRS instruction information, with it Value value is index, and the quantized value that the corresponding orthogonal transmission number of plies is searched in DMRS configuration information table (and then knows DMRS layers Count information perhaps DMRS antenna port set information or the code division multiplexing CDM group information of DMRS antenna port etc.), and The information such as the number of plies, the DMRS port number that oneself use, and then receiving end identifies which resource unit is used to this receiving end DMRS transmission, which resource unit is the DMRS transmission for other receiving ends of CDM multiplexing, and remaining resource unit is It is transmitted for data relevant to this receiving end, therefore, this receiving end carries out data demodulation on corresponding resource unit.If It is dominant indicating mode, in transmitting terminal and receiving end other than preserving DMRS configuration information table respectively, also saves and refer to respectively In the case of showing information configuration table (or the DMRS configuration information table can be configured by RRC), the instruction is believed in receiving end Breath searches corresponding rate matching state, the rate matching state is believed in receiving end as index in corresponding relationship allocation list Breath is combined with the DMRS configuration information table, identifies which resource unit is used to the DMRS transmission of this receiving end, 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 ends Rate match information directly obtains), remaining resource unit is transmitted for data relevant to this receiving end, therefore, is originally connect Receiving end carries out data demodulation on corresponding resource unit.

DMRS instruction provided by the present application and received method can also be applied to irrelevant joint transmission (Non- Coherent joint transmission, NC-JT) 2PDCCH scene, specifically, using 2 hairs of the co-located QCL group of non-standard End is penetrated, is carried out data transmission after the corresponding resource unit 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 TRP default by DMRS pairs in the QCL group of other side TRP in specific implementation The position RE is answered to carry out muting.For DMRS pattern type1, wherein including two DMRS port groups, in NC-JT scene Under, it can be non-QCL between two DMRS port groups, and the port in each DMRS port group is QCL's, at this point, 2 TRP can use a port group respectively, and therefore, the program can be solved directly, indicate without additional signaling.For DMRS Pattern type2 can have a TRP at this time and use 1 DMRS port group 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 to 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 scene, it can also be by way of independently indicating, detailed process still can be found in shown in Figure 21 Step:

It should be noted that be that DMRS instruction information is generated by the transmitting terminal of irrelevant joint transmission in step S201, it should DMRS indicates that the DMRS port in the QCL group that information is able to use according to multiple TRP of cooperation generates；

In step S202, transmitting terminal sends DMRS to receiving end and indicates information, for 1PDCCH scene, DMRS instruction letter The corresponding resource unit of DMRS that multiple TRP of breath instruction cooperation are able to use, and for 2PDCCH scene, the rate-matched Information indicates the corresponding resource unit of DMRS that this transmitting terminal uses.

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

If the technical solution is applied in uplink scene, transmitting terminal can be terminal, and receiving end 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 end can be terminal.

The method of the instruction of DMRS rate-matched provided by the present application indicates that information and maximum can support port by DMRS Several or DMRS pattern or DMRS Configuration Type are corresponding, 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 scene complicated and changeable, in addition it can meet higher number 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 DMRS port for still having used this all DMRS port, the application is without limiting.

It will be described below the indicating means of DMRS rate-matched provided by the present application and the method for reseptance of DMRS rate-matched 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 is that the maximum supported with TRP0 can support that orthogonal port number is 12, wherein is given terminal 0 (UE0) The port of distribution is 1,2,7,8ports, is 3,4,9,10ports to the port distributed terminal 1 (UE1).

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 every kind of shade lattice indicates 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 mode.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 is illustrated for being M, wherein M is greater than or equal to 1 integer.For example, if 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 group occupies 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 Without limitation.It is worth noting that, rate matching status information can also occur when DMRS port mapping mode changes 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 information changes, then it represents that the orthogonal biography of rate matching status information 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, indicate RMI=reserved (reserved value), 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 instruction 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 table of maximum 12 orthogonal port numbers, and The DCI signaling table of the DMRS of LTE is similar, which is only applicable to transparent MU-MIMO, and receiving end passes through the table Obtain the information such as DMRS port and the orthogonal transmission number of plies of oneself.In addition, receiving end can also be according to the DMRS having been received The RMI for indicating information (occurrence of value) instruction, knows the current orthogonal transmission number of plies of quantization, or currently has been used end Mouth group combinations of states, or the orthogonal transmission number of plies or port set state that this current non-receiving end uses, or need to be by silent resource Unit, so that the resource not occupied by DMRS in the resource for can be used for carrying DMRS is known, 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 combination 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 terminals, and then will not transmit the data of 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 information, knows that 3 position of DMRS port group can transmit 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 table can be different, for example, the RMI gone out in previous example is the current quantisation number of plies, are also possible to 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 implementations, 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.

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

In this scene, it is for 6 DMRS as shown in figure 25 that there are many multiplex modes for the DMRS port that UE0 and UE1 are used A kind of schematic diagram of mapping ruler of port, wherein every kind of 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, indicate RMI=reserved (reserved value).

Similarly, receiving end can also be according to DMRS instruction information (occurrence of the value) instruction 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 this current non-receiving end The orthogonal transmission number of plies or port set state used, or need to can be used for carrying DMRS's to know by silent resource unit 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 table 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 includes DMRS port { 5,6 } can according to rate matching information 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 terminals use.

As shown in figure 26 is that the maximum supported with TRP0 can support that port number is 8, wherein is distributed to terminal 0 (UE0) 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 every kind of 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 by CDM mode between the corresponding DMRS of each DMRS port in each DMRS port group 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 on frequency domain including 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 on frequency domain including 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, for example, represent DMRS port group 1 when value=0 (decimal system) or 00 (binary system) and used, As Value=1 or 01, DMRS port group 1 and DMRS port group 2 are used.

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

Similarly, receiving end can also be according to DMRS instruction information (occurrence of the value) instruction 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 this current non-receiving end The orthogonal transmission number of plies or port set state used, or need to can be used for carrying DMRS's to know by silent resource unit 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 is that the maximum supported with TRP0 can support that port number is 4, wherein is distributed to terminal 0 (UE0) Port is 1,2ports, and the port of terminal 1 (UE1) distribution is 3,4ports.In this scene, the end 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 mode, wherein Every kind of shade lattice indicates the RE that a DMRS port group is mapped to, and 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 in figure with RMI) 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 end can also be according to DMRS instruction information (occurrence of the value) instruction 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 this current non-receiving end The orthogonal transmission number of plies or port set state used, or other pairing terminals can need to 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 terminals 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 such as CDM scheduling after elder generation FDM, thus, rate matching information in the embodiment can be with Carried out with DMRS pattern configuration (type) or the DMRS pattern port set number that includes it is corresponding, to simplify receiving end 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 chosen is not needed:

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 information for each maximum Table can satisfy the demand of different scenes in NR system.

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 transmit the number of plies for the current orthogonal of quantization, or DMRS port group State.

As shown in Figure 30 (a)~30 (e), the mapping order of signal is the DMRS of FDM mapping after elder generation CDM mapping 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 mapping after elder generation FDM mapping 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, multiple DMRS patterns can correspond to identical RM table, such as 31 under this kind of port mapping scheme (a) with 31 (b) can corresponding identical rate-matched table, such as 31 (a) table, and 31 (c) can be corresponding identical with 31 (d) Rate-matched table, as 31 (c) table and table can port set in or DMRS pattern corresponding with DMRS type it 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 mode.

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, multiple DMRS patterns can correspond to identical RM table, such as 32 under this kind of port mapping scheme (a) with 32 (b) can corresponding identical rate-matched table, such as 32 (a) table, and 32 (c) can be corresponding identical with 32 (d) Rate-matched table, as 32 (c) table and table can port set in or DMRS pattern corresponding with DMRS type it 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 instruction 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) with 33 (b) can corresponding identical rate-matched table, such as 33 (a) rate-matched table, At this time table can port set number in or DMRS pattern corresponding with DMRS type it 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 The occupied state of DMRS port group 1 and 3, 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 The occupied state of DMRS port group 1 and 3, or can be reserved.

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

It is worth noting that, the CDM combination in the program is only example, in the 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, without the expression of RMI, for example for Figure 33 (a), can be described as table 19-1.

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 that terminal is currently SU state, does not limit specific expression-form.

Implement embodiment shown in above-mentioned Figure 30~33, for each pattern, or one kind DMRS configuration (type) or DMRS pattern with identical port set number designs corresponding DMRS instruction information, can satisfy different in NR system 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 information and DMRS instruction information can be carried out classification and be referred to by the combination for RRC, MAC-CE, DCI Show, for example parameter setting (parameter set) can be configured by RRC, wherein the orthogonal transmission number of plies comprising quantization Information or CDM group status information select parameter set notice eventually by DCI signaling to make the rate-matched of DMRS End.The orthogonal transmission number of plies method of above a variety of quantizations can be placed 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 are without limitation.When specific implementation, parameter Set can be configured by RRC, and wherein parameter set may include the relevant rate matching information 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 table, 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 number of plies of DMRS Information or DMRS antenna orthogonal port set instruction information perhaps the CDM group information of DMRS antenna orthogonal port or It is the information generated according to CDM size.

For 34 (a) in such as Figure 34,34 (b), 34 (c) and 34 (d) four kinds of pattern arrive table 4 relative to aforementioned table 1 In DMRS configuration information table, this feature of the instruction information of total orthogonal transmission number of plies is added in the present embodiment, such as chart 21 To being total orthogonal transmission number of plies shown in mono- column 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 Rate-matched is carried out with multiple terminals for doing MU adaptation.

The present embodiment is added to total orthogonal biography on the basis of the content for the DMRS configuration information table 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 is the quantized value to the possible orthogonal transmission number of plies, and using in DMRS configuration information table DMRS indicates information (value) identical value to be indicated；The DMRS configuration information table can be similar in LTE, for example, Antenna port number (Antenna ports) in LTE, scrambling code indicate (scrambling identity) and the orthogonal transmission number of plies It indicates (number of layers indication), it can also generate letter comprising DMRS port number, port index, sequence At least one of breath, CDM type add the quantized value of the orthogonal transmission number of plies on this basis.The DMRS configuration information table can To be stored on transmitting terminal and receiving end simultaneously, when transmitting terminal is needed to receiving end indicated speed matching scheme, it is only necessary to An instruction information is sent to receiving end, after receiving end 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 number of plies information or DMRS antenna end Mouth aggregate information, or the also code division multiplexing CDM group information etc. of DMRS antenna port, and then which resource receiving end identifies Unit is used to the DMRS transmission of this receiving end, which resource unit is the DMRS biography for other receiving ends of CDM multiplexing Defeated, remaining resource unit is transmitted for data relevant to this receiving end, and therefore, this receiving end is in corresponding resource list Data demodulation is carried out in member.

In another implementation, 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 end To receiving end.

Wherein, unlike previous embodiment, in the table 25, corresponding value value is no longer the orthogonal transmission number 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 regardless of It is SU or MU pairing, 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 end receives this It indicates the state of the non-self DMRS port group used can be judged, to complete rate after information (value value) Match.It should be noted that mono- column MU is 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 to indicate the non-self end DMRS used Whether mouth group is silent, as shown in table 26 below, wherein the end that larger and lesser 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 Lesser 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 prestore larger and lesser port set.

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 end uses end When mouthful group 1, when value=0, indicate not silent；When value=1, indicate that other receiving ends for doing MU pairing use end Mouth group 2；When value=2, indicate that other receiving ends for doing MU pairing use port set 3；When value=3, MU is in expression Other receiving ends 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 set 2, port set 3

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

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

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

It is selected for example, RRC configures 2 parameter set, 1bit DCI signaling dynamics, alternatively, RRC configures 4 Parameter set, 2bits DCI signaling is 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

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

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

Can be the whether occupied status information of each CDM group, such as CDM group can be numbered, for example, 1,2, 3DMRS CDM group；In the specific implementation, the end in instruction CDM group can be passed through there is no the state for CDM group # Slogan is realized.

It 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)；

Can be rate matching pattern, which RE on directly expression DMRS symbol is needed by mute, At this time without CDM group concept.

In another implementation, it is used to realize the rate-matched of DMRS with CDM group information in DMRS configuration information table.

RMI can be expressed as the status information of CDM group, such as " the State of of 8-1 and 8-2 in a kind of implementation The column CDM group ".Below for specific DMRS pattern as an example, wherein specific DMRS port port numbers are only For example.Sequentially (port mapping) for different port mappings, the DMRS port number (port in following example Index it) may change, here without limitation.

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

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

A kind of example of CDM group occupied state is only gived above, and every kind of state can be substituted for other in specific implementation The occupied state of CDM group.In addition, the CDM group state specifically indicated in table 8-1 and table 8-2 is (in such as table when specific implementation 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 group (such as CDM group 1 can be expressed as port numbers 0,1 or 0,1,4,6) At least one DMRS port number in CDM group either occupied (such as CDM group 1 can be expressed as port numbers 0 or 0,1). In addition, can be omitted symbol number in table 8-1 and table 8-2 in the whole port numbers modes being expressed as in CDM group One column, by directly indicating that port numbers recessiveness whole in CDM group 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 end can To obtain 1 symbol or the information of 2 symbol DMRS according to the port numbers recessiveness in CDM group.

In another implementation, the RMI information of table can indicate occupied CDM group 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 is without limitation.

Table 29-1 gives a kind of corresponding adding method 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 group 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 group serial number, or be based on certain scheduling rule.Such as DMRS type 1, 1 CDM group can correspond to that CDM group 1 is occupied, and 2 CDM groups can be understood as CDM group 1 and CDM group 2 is occupied.For DMRS Type2,1 CDM group can correspond to that CDM group 1 is occupied, and 2 CDM groups can be understood as CDM group 1 and CDM group 2 is occupied, and 3 It is occupied that CDM group can be understood as CDM group 1,2,3.In another implementation method, CDM group number can not be tied up with CDM group serial number It is fixed, for example for 1,1 CDM group of DMRS type with indicating that only having a CDM group in system uses, which can be CDM Group 1 or CDM group 2, receiving end can obtain occupied CDM group serial number according to its specific DMRS port number, and 2 CDM groups are then Indicate that 2 CDM groups are occupied, receiving end may use 1 or two CDM groups, if receiving end uses CDM group 2, then can To infer that CDM group 1 is occupied by other receiving ends, to carry out rate-matched.

1 example of table 29-1 DMRS port composite type

In addition, in another implementation, the CDM group number added in table can not include that receiving end itself uses CDM group number, i.e., indicate that system is currently used and do not include the number for the CDM group that receiving end itself uses in table, or Person can be understood as (the CDM group number that occupied CDM group total number-receiving end uses in system).For example, for Type1, When totally 2 CDM groups are called for system, when receiving end uses 2 CDM groups, the CDM group number that non-reception end uses itself is 0；When Totally 2 CDM groups are called for system, and receiving end uses 1 CDM group, and the CDM group number that non-reception end uses itself is 1；When being Altogether 1 CDM group is called, and receiving end uses 1 CDM group, and the CDM group number that non-reception end uses is 0.In this kind of scheme CDM group number 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 information table increases (power boosting) information, such as One column of addition provide the power boosting numerical value of specific each state in 29-1, and specific value can be type 1 0db, 3dB can be 0dB, 1.77dB, 4.77dB for type 2.In the table, the specific value of power boosting can Directly infer and can obtain with the number and receiving end port information of the CDM group directly occupied according to current state, power Boosting value and state have one-to-one relationship.

Specific Principles are, for DMRS type 1, when receiving end 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 end uses, And system currently have 2 CDM port sets it is occupied when, power boosting numerical value be 0dB；When receiving end uses occupancy 1 CDM port set, 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 An example of a corresponding DMRS type 1 out, specific port calling, symbol number are without limitation.

1 example of table 29-2 DMRS port composite type

For DMRS type 2,1 CDM port set is occupied when receiving end 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 end uses, and system currently has 2 When a CDM port set is occupied, power boosting numerical value is 0dB；1 CDM port set is occupied when receiving end uses, and is System currently have 2 CDM port sets it is occupied when, power boosting numerical value be 1.77dB；When receiving end uses occupancy 1 CDM port set, 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 end can only at most call 4 ports, i.e. MU in 1 CDM group when determining MU, a receiving end 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 without limitation.

2 example of Table 29-3 DMRS port composite type

Embodiment nine

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

As shown in figure 35, in this Multi-TRP, NC-JT, support in 2PDCCH scene 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 default One or more QCL groups in DMRS correspond to the position 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 default will be one workable for non-TRP oneself Or the DMRS in multiple QCL groups corresponds to the position RE and carries out muting, in addition, being sent for there is the TRP of multiple port sets to UE RM signal, 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 the DMRS port according to workable for current TRP or can support support the maximum number of plies or DMRS port pair workable for itself The DMRS pattern answered is 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.It here, can be with for different DMRS pattern only with a kind of DMRS pattern citing Use corresponding RM signaling.

For example, TRP0 is only capable of using DMRS port group 1, and DMRS port group 2 and 3 can be used in TRP1 for Figure 37, this When, TRP0 is silent by the corresponding running time-frequency resource of DMRS port group 2 and 3, and TRP1 is silent by the corresponding running time-frequency resource of DMRS port group 1, this Outside, terminal will receive the rate-matched signaling of TRP1, which indicates the total quantization orthogonal transmission number of plies of port set 2 and 3, i.e., The quantization orthogonal transmission number of plies of DMRS port workable for TRP1, TRP0 can not have rate-matched signaling or rate at this time 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 indicate the DMRS port that non-reception end itself uses using instruction information The mode of group, such as when entering NC-JT mode 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 default One or more QCL groups in DMRS correspond to the position 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, indicates without additional signaling.

Another settling mode is that independent indication scheme is as shown in figure 40: TRP default will be one workable for non-TRP oneself Or the DMRS in multiple QCL groups corresponds to the position RE and carries out muting, in addition, being sent for there is the TRP of multiple port sets to UE RM signal, 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 Enable can the DMRS port according to workable for current TRP or the corresponding DMRS pattern of workable DMRS port generated.UE Rate-matched, scheme in embodiment before scheme can be used are completed according to the rate-matched signaling that the use of oneself receives.This In only with a kind of DMRS pattern illustrate, for different DMRS pattern, corresponding RM signaling can be used.

For example, TRP0 is only capable of using DMRS port group 1, and DMRS port group 2 and 3 can be used in TRP1 for Figure 40, this When, TRP0 is by the position of DMRS port group 2 and 3 silence, 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, TRP0 can not have rate-matched signaling or rate-matched signaling that can send the state for representing SU at this time.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 indicate the DMRS port that non-reception end itself uses using instruction information The mode of group, such as when entering NC-JT mode 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 the above functions, 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, depending 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 the division of functional module, example according to above method example to base station or terminal Such as, each functional module of each function division can be corresponded to, two or more functions can also be integrated at one It manages in module.Above-mentioned integrated module both can take the form of hardware realization, can also use the form of software function module It realizes.It should be noted that being schematical, only a kind of logic function stroke to the division of module in the embodiment of the present application Point, there may be another division manner in actual implementation.Below for using corresponding each each functional module of function division It is illustrated:

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 information from multiple DMRS configuration information tables, and according to this DMRS configuration information obtains DMRS instruction information, or executes S201 shown in Figure 21, i.e. generation demodulated reference signal DMRS instruction Information；The DMRS instruction information can support port number or DMRS pattern or DMRS Configuration Type 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 institute in Fig. 6 Transmitting terminal executes the movement that DMRS relevant information 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 end 360.The receiving end 360 may include processing unit 3602 and connect Receive unit 3603.Wherein: the receiving end 360 can be above involved in terminal 200 or base station 100.Receiving unit 3603 is used In the movement for executing the DMRS instruction information of reception performed by receiving end in the S103 in Fig. 6 or for executing in Figure 21 The movement of reception DMRS instruction information performed by receiving end in S203, and involved in/the embodiment of the present application connect Receiving end receives the movement of any information.Processing unit 3602 can be used for executing the S104 in Fig. 6, i.e., described based on the received DMRS indicates information, or for executing the S204 in Figure 21, i.e., the DMRS indicates information based on the received, 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 end 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, the shape of the corresponding each each functional module of function division in 350~receiving end of transmitting terminal 360 Formula is presented, or should be presented in the form of using the model split each functional 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 device of above-mentioned function can be provided, Wherein, processor and memory can integrate together, can also be relatively independent.

In a simple embodiment, those skilled in the art is contemplated that 350~receiving end 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 any combination thereof 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 process or function described in the embodiment of the present application.The computer can be general purpose computer, dedicated meter Calculation machine, computer network or other programmable devices.The computer instruction can store 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 either includes the numbers such as one or more server, data centers that medium can be used to integrate According to storage equipment.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 hard 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 where 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 any 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 claim of this application 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 characterized by comprising

Transmitting terminal obtains DMRS instruction information according to DMRS configuration information；The code point of DMRS instruction information marker antenna port It is multiplexed CDM group information, the CDM group information includes CDM group number；The CDM group number is to have occupied or scheduling in system Possibility, it is not used in the number of the CDM group of transmission data；

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 information and indicates Information includes: before

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

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

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

5. method according to any one of claims 1 to 4, which is characterized in that in the DMRS configuration information, DMRS type The DMRS port mapping ruler of 1 and DMRS type 2 is as follows:

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

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

For 1 symbol DMRS type 2, the port that CDM group 1 includes is { 0,1 }, and CDM group 2 includes that port is { 2,3 }, and CDM group 3 is wrapped The port contained is { 4,5 }；

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

6. method as claimed in claim 5, which is characterized in that in the corresponding DMRS configuration information of the DMRS Class1, CDM Group number, port, the corresponding relationship between symbolic number meet following table a line or multirow shown in corresponding relationship:

7. method as claimed in claim 5, which is characterized in that in the corresponding DMRS configuration information of the DMRS type 2, CDM Group number, port, the corresponding relationship between symbolic number meet following table a line or multirow shown in corresponding relationship:

8. the method as described in claim 1, which is characterized in that configuring the DMRS configuration information by RRC signaling can be used Range, which determined based on the symbolic information of DMRS or DMRS maximum symbol numbers.

9. the method as described in claim 1, which is characterized in that range and radio resource workable for the DMRS configuration information The parameter association of DMRS maximum symbol numbers is indicated in control signaling RRC.

10. a kind of transmitting terminal characterized by comprising

Processing unit obtains DMRS instruction information according to DMRS configuration information；DMRS instruction information marker antenna port Code division multiplexing CDM group information, the CDM group information include CDM group number；The CDM group number be system in have it is occupied or Possibility is dispatched, the number of the CDM group of transmission data is not used in；

Transmission unit sends the DMRS instruction information.

11. transmitting terminal as claimed in claim 10, which is characterized in that the transmitting terminal obtains DMRS according to DMRS configuration information It indicates information, includes: before

12. transmitting terminal as claimed in claim 10, which is characterized in that when the value of the CDM group 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 group 1 and CDM group 2 are occupied or dispatch, the CDM When the value of group number information is 3, indicate that CDM group 1, CDM group 2, CDM group 3 are occupied or dispatch.

13. transmitting terminal as claimed in claim 10, which is characterized in that further include the symbol of DMRS in the DMRS configuration information Information.

14. the transmitting terminal as described in any one of claim 10 to 13, which is characterized in that in the DMRS configuration information, DMRS Class1 and the DMRS port mapping ruler of DMRS type 2 are as follows:

15. transmitting terminal as claimed in claim 14, which is characterized in that in the corresponding DMRS configuration information of the DMRS Class1, CDM group number, port, the corresponding relationship between symbolic number meet following table a line or multirow shown in corresponding relationship:

16. transmitting terminal as claimed in claim 14, which is characterized in that in the corresponding DMRS configuration information of the DMRS type 2, CDM group number, port, the corresponding relationship between symbolic number meet following table a line or multirow shown in corresponding relationship:

17. transmitting terminal as claimed in claim 10, which is characterized in that configuring the DMRS configuration information by RRC signaling can The range used, the workable range are determined based on the symbolic information of DMRS or DMRS maximum symbol numbers.

18. transmitting terminal as claimed in claim 10, which is characterized in that range workable for the DMRS configuration information and wireless The parameter association of DMRS maximum symbol numbers is indicated in resource control signaling RRC.

19. a kind of method for receiving demodulated reference signal characterized by comprising

Receiving end receives the demodulated reference signal DMRS that transmitting terminal is sent and indicates information；The DMRS indicates information marker antenna end The code division multiplexing CDM group information of mouth, the CDM group information includes CDM group number；The CDM group number is may quilt in system It occupies or dispatches, be not used in the number of the CDM group of transmission data；

The DMRS indicates information, aid demodulation data based on the received for the receiving end.

20. method as claimed in claim 19, which is characterized in that the DMRS instruction information is that the transmitting terminal is demodulated from multiple groups DMRS configuration information corresponding with current DMRS transmission plan is determined in reference signal DMRS configuration information, and is configured according to DMRS Information obtains DMRS instruction information；Every group of DMRS configuration information includes a plurality of DMRS configuration information.

21. method as claimed in claim 19, which is characterized in that when the value of the CDM group number information is 1, indicate CDM group 1 occupied or scheduling when the value of CDM group number information is 2, indicates that CDM group 1 and CDM group 2 are occupied or dispatch, the CDM group When the value of number information is 3, indicate that CDM group 1, CDM group 2, CDM group 3 are occupied or dispatch.

22. method as claimed in claim 19, which is characterized in that further include the symbol letter of DMRS in the DMRS configuration information Breath.

23. such as any one of claim 19 to 22 the method, which is characterized in that in the DMRS configuration information, DMRS class The specific DMRS port mapping ruler of type 1 and DMRS type 2 is as follows:

24. method as claimed in claim 23, which is characterized in that in the corresponding DMRS configuration information of the DMRS Class1, CDM group number, port, the corresponding relationship between symbolic number meet following table a line or multirow shown in corresponding relationship:

25. method as claimed in claim 23, which is characterized in that in the corresponding DMRS configuration information of the DMRS type 2, CDM group number, port, the corresponding relationship between symbolic number meet following table a line or multirow shown in corresponding relationship:

26. method as claimed in claim 19, which is characterized in that configuring the DMRS configuration information by RRC signaling can make Range, the workable range are determined based on the symbolic information of DMRS or DMRS maximum symbol numbers.

27. method as claimed in claim 19, which is characterized in that range workable for the DMRS configuration information and wireless money The parameter association of DMRS maximum symbol numbers is indicated in the control signaling RRC of source.

28. a kind of receiving end characterized by comprising

Receiving unit, the demodulated reference signal DMRS for receiving transmitting terminal transmission indicate information；The DMRS indicates information institute The code division multiplexing CDM group information of DMRS instruction information marker antenna port is stated, the CDM group information includes CDM group number；It is described CDM group number is possible occupied or scheduling in system, is not used in the number of the CDM group of transmission data；

Processing unit indicates information, aid demodulation data according to the received DMRS of the receiving unit.

29. receiving end as claimed in claim 28, which is characterized in that DMRS instruction information is the transmitting terminal from multiple groups DMRS configuration information corresponding with current DMRS transmission plan is determined in demodulated reference signal DMRS configuration information, and according to DMRS Configuration information obtains DMRS instruction information；Every group of DMRS configuration information includes a plurality of DMRS configuration information.

30. receiving end as claimed in claim 28, which is characterized in that when the value of the CDM group 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 group 1 and CDM group 2 are occupied or dispatch, the CDM When the value of group number information is 3, indicate that CDM group 1, CDM group 2, CDM group 3 are occupied or dispatch.

31. receiving end as claimed in claim 28, which is characterized in that further include the symbol of DMRS in the DMRS configuration information Information.

32. the receiving end as described in any one of claim 28 to 31, which is characterized in that in the DMRS configuration information, DMRS Class1 and the specific DMRS port mapping ruler of DMRS type 2 are as follows:

33. receiving end as claimed in claim 32, which is characterized in that in the corresponding DMRS configuration information of the DMRS Class1, CDM group number, port, the corresponding relationship between symbolic number meet following table a line or multirow shown in corresponding relationship:

34. receiving end as claimed in claim 32, which is characterized in that in the corresponding DMRS configuration information of the DMRS type 2, CDM group number, port, the corresponding relationship between symbolic number meet following table a line or multirow shown in corresponding relationship:

35. receiving end as claimed in claim 28, which is characterized in that configuring the DMRS configuration information by RRC signaling can The range used, the workable range are determined based on the symbolic information of DMRS or DMRS maximum symbol numbers.

36. receiving end as claimed in claim 28, which is characterized in that range workable for the DMRS configuration information and wireless The parameter association of DMRS maximum symbol numbers is indicated in resource control signaling RRC.

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

The processing unit is for the transmitting terminal as described in any one of claim 10~18 or as appointed in claim 28~36 Processing unit in receiving end described in one.

38. a kind of communication system characterized by comprising

Transmitting terminal as described in any one of claim 10~18 and the reception as described in any one of claim 28~36 End.

39. a kind of computer storage medium, for storing used in the transmitting terminal as described in any one of claim 10~18 Computer software instructions.

40. a kind of computer storage medium, for storing used in the receiving end as described in any one of claim 28~36 Computer software instructions.