CN108809612B

CN108809612B - It is used for transmission the method and communication equipment of DMRS

Info

Publication number: CN108809612B
Application number: CN201810875006.1A
Authority: CN
Inventors: 葛士斌; 任翔; 毕晓艳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-07-17
Filing date: 2017-09-08
Publication date: 2019-06-11
Anticipated expiration: 2037-09-08
Also published as: CN109039566B; WO2019015587A1; CN108809612A; CN109039566A

Abstract

This application provides a kind of method for being used for transmission DMRS and communication equipments, this method comprises: communication equipment determines the present mode of scheduling of resource unit, the present mode includes frequency-hopping mode or aggregation scheme, the frequency-hopping mode indicates that a part of symbol is located at the first frequency range in a scheduling of resource unit, another part symbol is located at the second frequency range, which indicates multiple scheduling of resource unit aggregation transfers；The communication equipment carries out the mapping or demapping of DMRS using DMRS pattern corresponding with the present mode, wherein the character position that DMRS is occupied in the corresponding DMRS pattern of the present mode is different from the character position that DMRS in preset DMRS pattern is occupied.The embodiment of the present application can be according to different modes, the character position for neatly DMRS being selected to occupy, and then the embodiment of the present application can satisfy the requirement of different mode, promote network performance.

Description

It is used for transmission the method and communication equipment of DMRS

Technical field

This application involves the communications fields, and more particularly, to a kind of method for being used for transmission DMRS and communication equipment.

Background technique

In existing communication system, when carrying out data transmission, sending ending equipment when uplink for terminal (for example, set Standby, be the network equipment when downlink transfer) need to send demodulated reference signal (demodulation reference signal, DMRS), so that receiving device (being terminal device when downlink transfer for example, being the network equipment when uplink) is according to DMRS Demodulate the data.

In general, sending ending equipment can send DMRS according to preset DMRS pattern.For example, in long term evolution (long term Evolution, LTE) in system, for example, being used for physics for general cyclic prefix (normal cyclic prefix) The DMRS of Uplink Shared Channel (physical uplink shared channel, PUSCH) demodulation is usually fixed to occupy resource 4th symbol (symbol) of scheduling unit and the 11st symbol.For another example newly eating dishes without rice or wine to have in (new radio, NR) system There is the demand of rapid feedback, therefore, in NR system, in DMRS pattern (pattern), the fixed occupancy source scheduling unit of DMRS Forward symbol (front loaded).

Scheduling of resource unit in (new radio, NR) system of newly eating dishes without rice or wine can flexibly become according to different scenes Different modes is turned to, for example, can be frequency-hopping mode, i.e., frequency hopping (frequency hopping) passes in scheduling of resource unit Defeated, alternatively, can be aggregation scheme, i.e., the polymerization (aggregation) of multiple scheduling of resource units be transmitted.

However, when the mode of scheduling of resource unit changes, if passed still according to preset DMRS pattern is fixed The mode of defeated DMRS sends DMRS, and the waste of DMRS resource or the demodulation performance difference for causing receiving end etc. can be brought to adversely affect, Influence network performance.

Summary of the invention

The application provides a kind of method for being used for transmission DMRS and communication equipment, is able to ascend network performance.

In a first aspect, a kind of method for being used for transmission DMRS is provided, this method comprises:

Communication equipment determines the present mode of scheduling of resource unit, which includes frequency-hopping mode or aggregation scheme, The frequency-hopping mode indicates that a part of symbol is located at the first frequency range in a scheduling of resource unit, and another part symbol is located at the second frequency Section, the aggregation scheme indicate multiple scheduling of resource unit aggregation transfers；The communication equipment use is corresponding with the present mode The mapping or demapping of DMRS pattern progress DMRS, wherein the symbol that DMRS is occupied in the corresponding DMRS pattern of the present mode Position is different from the character position that DMRS in preset DMRS pattern is occupied.

It should be understood that this method can be executed by communication equipment, which can be the network equipment or terminal device.

It should be understood that symbol indicates chronomere in the embodiment of the present application, symbol herein is referred to as OFDM symbol Number, the embodiment of the present application is not limited to this.

It should also be understood that a resource unit may include n symbol in the embodiment of the present application, n is whole more than or equal to 2 Number, for example, n is 7,14 or is any one numerical value in 2-13, the embodiment of the present application is not limited to this.

It should be understood that DMRS pattern is referred to as DMRS distributed intelligence or DMRS attribute, the DMRS in the embodiment of the present application Pattern can indicate the character position and number of symbols that DMRS is occupied, and the embodiment of the present application is not limited to this.

It should be understood that carrying out reflecting for DMRS according to the corresponding DMRS pattern of present mode when the communication equipment sends data It penetrates, when the communication equipment receives data, the demapping of DMRS is carried out according to the corresponding DMRS pattern of present mode.

For example, the communication equipment is the network equipment, when carrying out uplink, the communication equipment is corresponding using present mode DMRS pattern carry out DMRS demapping；When carrying out downlink transfer, which uses the corresponding DMRS of present mode The mapping of pattern progress DMRS.For another example the communication equipment is terminal device, when carrying out uplink, which makes The mapping that DMRS is carried out with the corresponding DMRS pattern of present mode, when carrying out downlink transfer, which uses current mould The corresponding DMRS pattern of formula carries out the demapping of DMRS.

It should be understood that preset DMRS pattern is referred to as predefined pattern, default pattern or the in the embodiment of the present application One DMRS pattern, the corresponding DMRS pattern of present mode are referred to as the 2nd DMRS pattern.It is preset in the embodiment of the present application DMRS pattern indicates the used DMRS pattern under first mode (i.e. non-hopping and non-polymeric mode).

In the prior art, no matter which kind of transmission mode, be all made of preset DMRS pattern and communicated, i.e. DMRS occupy Character position is identical as the character position that DMRS in preset DMRS pattern is occupied.However, under application scenes, in resource When the mode of scheduling unit changes, if DMRS is sent still according to the mode of existing constant transmissions DMRS, due to pre- If DMRS pattern in the distribution mode of DMRS be difficult to meet the needs of different mode, therefore the waste of DMRS resource can be brought Or the adverse effect such as demodulation performance difference for causing receiving end, influence network performance.

And the pattern of the DMRS under mode different in the embodiment of the present application is different from preset pattern, the embodiment of the present application Can be according to different modes, the character position for neatly DMRS being selected to occupy, and then the embodiment of the present application can satisfy difference The requirement of mode promotes network performance.

When communication equipment is the network equipment, which can determine present mode according to various ways.

Optionally, the network equipment can be according to the network state for the channel state information and cell that terminal device reports Determine present mode.

Optionally, the waveform that the network equipment can be used according to terminal device, such as single carrier or multicarrier are determined to work as Premode.For example, the present mode can be frequency-hopping mode when terminal device uses single carrier, terminal device uses multicarrier When, which can be aggregation scheme.The embodiment of the present application is not limited to this, for example, when terminal device uses single carrier, The present mode may be aggregation scheme.

Optionally, the network equipment can determine present mode according to type of service.Wherein, type of service may include needs The business of fast demodulation or the business etc. for needing high transformation property.

Optionally, the network equipment can determine present mode according to the instruction information that terminal device is sent, that is to say, that eventually End equipment can be according to current state, for example, network state or service condition determine present mode, then terminal device is indicated The network equipment present mode.In this case, terminal device can send instruction information to the network equipment, so that network is set The standby instruction information sent according to terminal device determines the present mode.

Optionally, as a kind of implementation of first aspect, which is the network equipment, this method further include: The communication equipment sends the first instruction information to terminal device, which determines scheduling of resource list for terminal device The present mode of member.

Optionally, as a kind of implementation of first aspect, which is the network equipment, this method further include: The communication equipment sends second indication information to terminal device, and it is corresponding which is used to indicate the present mode DMRS pattern.

When communication equipment is terminal device, which can determine present mode according to various ways.

Optionally, terminal device can determine present mode according to the instruction of the network equipment, specifically, terminal device can be with The first instruction information that the network equipment is sent is received, which determines present mode for terminal device.Terminal is set After standby acquisition the first instruction information, the present mode of scheduling of resource unit can be determined according to the first instruction information.

It should be understood that the first instruction information can directly indicate that the present mode is aggregation scheme or frequency-hopping mode.It is optional Ground, the first instruction information can indicate the present mode indirectly.For example, the first instruction information indicates scheduling of resource unit Length, terminal device can determine the present mode according to the length of the scheduling of resource unit；For another example the first instruction information Current type of service is indicated, terminal device determines the present mode according to the type of service, and the embodiment of the present application is simultaneously unlimited In this.

It should be understood that the network equipment can send the first instruction information to terminal device by a variety of signalings, for example, downlink control Information (downlink control information, DCI) processed, wireless heterogeneous networks (radio resource control, RRC) signaling, media access control (media access control, MAC) layer control element (control element, CE) Etc., the embodiment of the present application is not construed as limiting this.

Optionally, as a kind of implementation of first aspect, which is terminal device, this method further include: The communication equipment receives the first instruction information that the network equipment is sent, which determines resource tune for terminal device Spend the present mode of unit；Wherein, which determines the present mode of scheduling of resource unit, comprising: the communication equipment root According to the first instruction information, the present mode is determined.

Optionally, as a kind of implementation of first aspect, which is terminal device, this method further include: The communication equipment receives the network equipment and sends second indication information, and it is corresponding which is used to indicate the present mode DMRS pattern.

It should be understood that the network equipment can send second indication information to terminal device by a variety of signalings, for example, DCI, RRC signaling, MAC CE etc., the embodiment of the present application is not construed as limiting this.

Specifically, due to the network equipment and terminal device when carrying out data transmission it needs to be determined that DMRS pattern, network are set For by notifying the pattern of the DMRS used when carrying out data transmission with terminal device to terminal device, terminal device According to the DMRS pattern, the running time-frequency resource position of DMRS is determined, and then can carry out the mapping or demapping of DMRS.

Optionally, terminal device can determine the present mode according to current state, for example, terminal device is according to network State or service condition determine present mode, and then terminal device indicates the network equipment present mode.

Optionally, as a kind of implementation of first aspect, which is frequency-hopping mode, the preset DMRS figure DMRS occupies continuous N number of symbol in a scheduling of resource unit of non-frequency hopping in sample, and N is the integer more than or equal to 1；Deserve DMRS occupies continuous N in first frequency range in the corresponding DMRS pattern of premode₁It is continuous in a symbol and second frequency range N₂A symbol, N₁For the integer more than or equal to 1, N₂For the integer more than or equal to 1.

In the embodiment of the present application, in frequency-hopping mode, since the channel status of two frequency ranges is different, the application is real It applies in example and transmits DMRS in each frequency range, receiving end is enabled to demodulate corresponding number according to the DMRS in each frequency range According to can be improved the accuracy of data demodulation, promote demodulation performance.

Optionally, as a kind of implementation of first aspect, the N₁=N₂, and the N1 symbol in first frequency range The N in position and second frequency range₂The positional symmetry of a symbol.

Therefore, being symmetrical arranged by the DMRS in two frequency ranges in the embodiment of the present application, enables receiving device Make to carry out data demodulation in two frequency ranges in a like fashion, can reduce the complexity of demodulation, promotes network performance.

Optionally, as a kind of implementation of first aspect, the N₂A symbol includes first in second frequency range Symbol.

Due to receiving device get after DMRS just can to data demodulation, the embodiment of the present application passes through setting DMRS occupies first symbol in second frequency range, enables receiving end to obtain the DMRS first, and then can be realized number According to fast demodulation.

It should be understood that N₂A character position can also be any one position in second frequency range, and the embodiment of the present application is simultaneously It is without being limited thereto.

For example, the N₂A character position is located at the first half of the second frequency range, alternatively, the N₂First symbol in a symbol Number be located at the second frequency range first half, for example, N₂=2, which can be second and third symbol of the second frequency range, Alternatively, third and fourth symbol, the embodiment of the present application are not limited to this.

Optionally, as a kind of implementation of first aspect, the N₁A symbol includes in first frequency range First symbol in one region, the first area are data and the symbol that DMRS is occupied.

It should be understood that first area includes in scheduling of resource unit for carrying data and the symbol of DMRS in the application.

By N₁First symbol in the first region is set, can be realized fast demodulation.

Optionally, as a kind of implementation of first aspect, the N₁=N₂=1, alternatively, the N₁=N₂=2.

That is, each section is a symbol or two, but the embodiment of the present application is not limited to this, can also one section account for With a symbol, two symbols of another section of occupancy.

Optionally, as a kind of implementation of first aspect, which is resource frequency-hopping mode, this is preset DMRS occupies continuous M symbol and continuous K symbol in a scheduling of resource unit of non-frequency hopping in DMRS pattern, In, K symbol of the M symbol and this is non-conterminous；DMRS occupies first frequency range in the corresponding DMRS pattern of the present mode Continuous M in symbol₁A symbol and continuous K₁Continuous M in a symbol and second frequency range₂A symbol and continuous K₂ A symbol, wherein the M₁A symbol and the K₁A symbol is non-conterminous, the M₂A symbol and the K₂A symbol is non-conterminous, M, K, M₁、 K₁、M₂、K₂For the integer more than or equal to 1.

It should be understood that M symbol is located at before K symbol, M₁A symbol is located at K₁Before a symbol, M₂A symbol is located at K₂ Before a symbol.

Optionally, as a kind of implementation of first aspect, the K₁A symbol includes falling in first frequency range First symbol of number, penultimate symbol or third last symbol.

By K₁The latter half of the first frequency range is arranged in a symbol, and receiving end is enabled to preferably to solve adjusting data, is promoted System performance.

Optionally, as a kind of implementation of first aspect, the M₁A symbol includes first in first frequency range The first symbol in region, the first area include institute's data and the symbol that DMRS is occupied.

M₁A symbol includes the symbol of the second frequency range first area first, can be realized fast demodulation.

Optionally, as a kind of implementation of first aspect, the M₂A symbol includes in second frequency range One symbol.

Optionally, as a kind of implementation of first aspect, M₁=M, the M₁The position of a symbol and the M symbol Set identical, the K₁A symbol includes the last symbol in first frequency range, the M₂Symbol includes first frequency range In first symbol, K₂=K, the k₂Symbol is identical as the position of the K symbol, alternatively, the K₂A character position is Predeterminated position.

Optionally, as a kind of implementation of first aspect, M₁=M, the M₁The position of a symbol and the M symbol Set it is identical,

The K₁A symbol includes the 7th symbol in entire scheduling of resource unit, the entire scheduling of resource unit packet The sum of the symbol that the first frequency range and the second frequency range occupy is included, the entire scheduling of resource unit includes 14 symbols,

The M₂Symbol includes the 8th symbol in the entire scheduling of resource unit,

K₂=K, the K₂Symbol is identical as the position of the K symbol, alternatively, the K₂A character position is default position It sets.

It,, can be in channel shape by transmitting two groups of DMRS in two frequency ranges in frequency-hopping mode in the embodiment of the present application State fluctuates in biggish situation, guarantees the accurate demodulation of data.

Optionally, as a kind of implementation of first aspect, M₁=M₂, K₁=K₂, and the M in first frequency range₁A symbol Number and the K₁The M in the position of a symbol and second frequency range₂A symbol and the K₂The positional symmetry of a symbol.

Being symmetrical arranged by the DMRS in two frequency ranges in the embodiment of the present application, so that receiving device is able to use phase Same mode carries out data demodulation in two frequency ranges, can reduce the complexity of demodulation, promotes network performance.

Optionally, as a kind of implementation of first aspect, the M₂A symbol includes first in second frequency range Symbol.

Due to receiving end get after DMRS just can to data demodulation, DMRS is occupied the by the embodiment of the present application First symbol in two frequency ranges, enable receiving end obtain first the DMRS can fast demodulation, meet fast demodulation Demand.

It should be understood that M₂A character position can also be any one position in second frequency range, and the embodiment of the present application is simultaneously It is without being limited thereto.

For example, the M₂A character position is located at the first half of the second frequency range, alternatively, the M₂First symbol in a symbol Number be located at the second frequency range first half, for example, M₂=2, which can be second and third symbol of the second frequency range, Alternatively, third and fourth symbol, the embodiment of the present application are not limited to this.

Optionally, as a kind of implementation of first aspect, DMRS also takes up this and does not jump in the preset DMRS pattern Continuous P symbol in one scheduling of resource unit of frequency, M symbol of the P symbol and this and the K symbol are non-conterminous；

DMRS also takes up continuous P in the symbol of first frequency range in the corresponding DMRS pattern of the present mode₁A symbol, And continuous P in second frequency range₂A symbol, wherein the P₁A symbol and the M₁A symbol and the K₁A symbol not phase Neighbour, the P₂A symbol and the M₂A symbol and the K₂A symbol is non-conterminous, P, P₁、P₂For the integer more than or equal to 1.

It,, can be in channel shape by transmitting 3 groups of DMRS in two frequency ranges in frequency-hopping mode in the embodiment of the present application State fluctuates in biggish situation, guarantees the accurate demodulation of data.

It should be understood that DMRS can occupy L group code in preset DMRS pattern in the embodiment of the present application, L can be 2,3,4 Or greater value, similarly, in frequency-hopping mode, DMRS occupies the L group in each frequency range in the corresponding DMRS pattern of present mode Symbol.

Optionally, as a kind of implementation of first aspect, which is aggregation scheme, multiple scheduling of resource Unit is Y, and Y is the integer more than or equal to 2；

DMRS occupies continuous in each scheduling of resource unit in Y scheduling of resource unit in the preset DMRS pattern At least one symbol,

DMRS occupies preceding Y in Y scheduling of resource unit in the corresponding DMRS pattern of the present mode₁A scheduling of resource unit In continuous at least one symbol in each scheduling of resource list, Y1 is more than or equal to 1 and to be less than the integer of Y.

In the embodiment of the present application, in aggregation scheme, DMRS has only taken up the preceding Y in Y of aggregation transfer₁A resource tune The symbol in unit is spent, the resource of DMRS occupancy is reduced, avoids the wasting of resources, promotes network performance.

Optionally, as a kind of implementation of first aspect, which is aggregation scheme, multiple scheduling of resource Unit is Y, and DMRS occupies in Y scheduling of resource unit L group in each scheduling of resource unit in the preset DMRS pattern Symbol, L are the integer more than or equal to 2, wherein the L group code is non-conterminous, and each group code includes connecting in the L group code Continuous at least one symbol；DMRS occupies each money in Y scheduling of resource unit in the corresponding DMRS pattern of the present mode L in the scheduling unit of source₁Group code, L₁For the integer less than L, wherein the L₁Group code is non-conterminous, the L₁It is every in group code One group code includes continuous at least one symbol.

In the embodiment of the present application, in aggregation scheme, DMRS has only taken up every in Y scheduling of resource unit of aggregation transfer L in one scheduling of resource unit₁Group code reduces the resource of DMRS occupancy, avoids the wasting of resources, promotes network performance.

Optionally, as a kind of implementation of first aspect, which is aggregation scheme, multiple scheduling of resource Unit is Y, and DMRS occupies in Y scheduling of resource unit L group in each scheduling of resource unit in the preset DMRS pattern Symbol, DMRS is occupied in Y scheduling of resource unit in each scheduling of resource unit in the corresponding DMRS pattern of the present mode L group code, wherein L is integer more than or equal to 2, wherein the L group code is non-conterminous, each group in the L group code Symbol includes continuous at least one symbol, arbitrary neighborhood in the Y*L group code that DMRS is occupied in the preset DMRS pattern The maximum difference of the spacing of two group codes is R symbol, the Y*L group symbol that DMRS is occupied in the corresponding DMRS pattern of the present mode The maximum difference of the spacing of two group codes of arbitrary neighborhood is S symbol, S < R in number.

Therefore, in the embodiment of the present application, in aggregation scheme, Y scheduling of resource unit of the aggregation transfer that DMRS is occupied In symbol distribution it is relatively uniform, can be improved demodulation performance, and avoid the wasting of resources, promoted network performance.

It should be understood that herein, the symbol numbers in a group code not occupied to DMRS limit, a group code It may include at least one symbol, it may for example comprise 1 symbol, 2 symbols or 3 symbols etc..The application implementation is not limited to This.

Second aspect provides a kind of method for being used for transmission DMRS, this method comprises: communication equipment uses additional DMRS Instruction information, determine the corresponding DMRS pattern of frequency-hopping mode, the additional DMRS indicates to be located at after preceding load DMRS DMRS, the instruction information are used to indicate at least one of the following: with the presence or absence of the additional DMRS, the additional DMRS The position of number and the additional DMRS, the frequency-hopping mode indicate that a part of symbol is located at first in a scheduling of resource unit Frequency range, another part symbol are located at the second frequency range, and the communication equipment carries out the mapping or solution of DMRS using the DMRS pattern Mapping.

It should be noted that after frequency hopping, latter half does not have pilot tone if only first half has a DMRS in NR, It can not proper solution data.If it is considered that frequency hopping, is its individually designed DMRS, and will increase DMRS design complexities, increase system Implementation complexity.

The embodiment of the present application can be flexible to determine based on parameter present in system, i.e., the instruction information of additional DMRS The corresponding DMRS pattern of frequency-hopping mode, can reduce implementation complexity, lifting system performance.

Optionally, it as a kind of implementation, is used to indicate in the instruction information there is no when the additional DMRS, institute It states in DMRS pattern DMRS and occupies in first frequency range one section of symbol in one section of symbol and second frequency range, wherein one Section symbol includes continuous at least one symbol.

Optionally, as a kind of implementation, one section of symbol in first frequency range includes in first frequency range The first symbol in one region, the first area include institute's data and the symbol that DMRS is occupied.

Optionally, as a kind of implementation, one section of symbol in second frequency range includes in second frequency range First symbol.

Optionally, it as a kind of implementation, is used to indicate in the instruction information there are when the additional DMRS, it is described DMRS occupies the symbol number of segment in first frequency range and position in DMRS pattern, and the sign field in the second frequency range occupied Several and position is identical as the number of segment and position of the instruction information and preposition DMRS instruction information instruction.

For example, DMRS occupies the DMRS section of symbol number of segment and position and preceding load DMRS instruction information instruction in the first frequency range Number is identical with position, and DMRS occupies the DMRS number of segment of symbol number of segment and position and additional DMRS instruction information instruction in the first frequency range It is identical with position.

Optionally, it as a kind of implementation, is used to indicate in the instruction information there are when the additional DMRS,

DMRS occupies discontinuous two sections of symbols and second frequency range in first frequency range in the DMRS pattern In discontinuous two sections of symbols, alternatively, DMRS occupies discontinuous two sections of symbols in first frequency range in the DMRS pattern, And one section of symbol in second frequency range, alternatively, DMRS occupies one section of symbol in first frequency range in the DMRS pattern Number and second frequency range in discontinuous two sections of symbols, wherein every section of symbol includes continuous finger in two sections of symbols Show a symbol, one section of symbol includes continuous at least one symbol.

Optionally, as a kind of implementation, DMRS is occupied discontinuous two in the first frequency range in the DMRS pattern When section symbol, latter section of symbol in two sections of symbols described in the first frequency range includes the last one symbol in first frequency range Number；Alternatively, when DMRS occupies discontinuous two sections of symbols in the second frequency range in the DMRS pattern, two described in the second frequency range The last period symbol in section symbol includes first symbol in second frequency range.

The third aspect provides a kind of communication equipment, for execute above-mentioned first aspect, second aspect, first aspect and Method in any possible implementation of second aspect.Specifically, which includes for executing the above method Unit.

Fourth aspect provides a kind of communication equipment, which includes processor and memory, which is used for Computer program is stored, which executes above-mentioned first aspect, for executing the computer program stored in the memory Method in any possible implementation of two aspects, first aspect and second aspect.

5th aspect, provides a kind of computer-readable medium, is stored thereon with computer program, the computer program quilt It is realized in first aspect, second aspect, first aspect and any possible implementation of second aspect when computer executes Method.

6th aspect, provides a kind of computer program product, realization when which is computer-executed Method in first aspect, second aspect, first aspect and any possible implementation of second aspect.

7th aspect, provides a kind of processing unit, including processor and interface；

The processor, for executing above-mentioned first aspect, second aspect, first aspect and any possible reality of second aspect Method in existing mode.

It should be understood that it is above-mentioned 7th aspect in processing unit can be a chip, the processor can by hardware come Realization can also realize that, when passing through hardware realization, which can be logic circuit, integrated circuit etc. by software； When by software to realize, which can be a general processor, by reading the software generation stored in memory Code realizes that change memory can integrate in the processor, can be located at except the processor, be individually present.

Detailed description of the invention

Fig. 1 is the applicable communication system schematic block diagram of the embodiment of the present application.

Fig. 2 is the schematic flow diagram according to the method for being used for transmission DMRS of the application one embodiment.

Fig. 3 is the schematic flow diagram according to the method for being used for transmission DMRS of another embodiment of the application.

Fig. 4 is the schematic flow diagram according to the method for being used for transmission DMRS of another embodiment of the application.

Fig. 5 is the schematic diagram according to the default DMRS pattern of the application one embodiment.

Fig. 6 is the schematic diagram according to the default DMRS pattern of another embodiment of the application.

Fig. 7 is the schematic diagram according to the DMRS pattern of the application one embodiment.

Fig. 8 is a kind of schematic diagram of DMRS pattern in the prior art.

Fig. 9 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 10 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 11 is the schematic diagram of another kind DMRS pattern in the prior art.

Figure 12 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 13 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 14 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 15 is the schematic diagram of another kind DMRS pattern in the prior art.

Figure 16 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 17 is the schematic diagram of another kind DMRS pattern in the prior art.

Figure 18 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 19 is the schematic block diagram according to the communication equipment of the application one embodiment.

Figure 20 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 21 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 22 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 23 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 24 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 25 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 26 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 27 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 28 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 29 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 30 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 31 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 32 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 33 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 34 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 35 is the schematic diagram according to the DMRS pattern of another embodiment of the application.

Figure 36 is to be multiplexed schematic diagram according to the DMRS of the application one embodiment.

Figure 37 is to be multiplexed schematic diagram according to the DMRS of another embodiment of the application.

Specific embodiment

Below in conjunction with attached drawing, the technical solution in the application is described.

The embodiment of the present application can be applied to various communication systems, and therefore, description below is not limited to particular communications system. For example, the embodiment of the present application can be applied to global system for mobile telecommunications (global system of mobile Communication, GSM) system, CDMA (code division multiple access, CDMA) system, broadband CDMA (wideband code division multiple access, WCDMA) system, General Packet Radio Service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE Frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), Universal Mobile Communication System (universal mobile telecommunication system, UMTS), wireless office Domain net (wireless local area networks, WLAN), Wireless Fidelity (wireless fidelity, WiFi) and Next generation communication system, i.e. the 5th generation (5th generation, 5G) communication system, for example, newly eating dishes without rice or wine (new radio, NR) System.

In the embodiment of the present application, the network equipment can be global system for mobile telecommunications (global system of mobile Communication, GSM) or CDMA (code division multiple access, CDMA) in base station (base Transceiver station, BTS), it is also possible to wideband code division multiple access (wideband code division multiple Access, WCDMA) in base station (nodeB, NB), can also be in long term evolution (long term evolution, LTE) Evolved base station (evolutional node B, eNB/eNodeB) is perhaps in relay station or access point or future 5G network Network side equipment, for example, transfer point (TRP or TP), the base station (gNB) in NR system, the radio frequency in NR system in NR system Unit, such as one or a set of (including mutiple antennas panel) aerial panel of remote radio unit (RRU), base station in 5G system.No The same network equipment can be located at the same cell, can also be located at different cells, specifically it is not limited here.

In the embodiment of the present application, terminal device is referred to as user equipment (user equipment, UE), access eventually It is end, subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless Communication equipment, user agent or user apparatus.Access terminal can be cellular phone, wireless phone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) It stands, personal digital assistant (personal digital assistant, PDA), the handheld device with wireless communication function, meter Calculate equipment or be connected to other processing equipments of radio modem, mobile unit, wearable device, unmanned machine equipment and Terminal device in the following 5G network.

Fig. 1 is the schematic diagram using the communication system of the method for transmission data of the invention.The communication system can be above-mentioned Any one communication system.As shown in Figure 1, the communication system 100 includes network side equipment 102, network side equipment 102 may include Mutiple antennas group.Each antenna sets may include mutiple antennas, for example, an antenna sets may include antenna 104 and 106, it is another A antenna sets may include antenna 108 and 110, and additional group may include antenna 112 and 114.Each antenna sets are shown in Fig. 1 2 antennas, however more or fewer antennas can be used for each group.Network side equipment 102 can additionally include transmitter Chain and receiver chain, it will appreciated by the skilled person that they may each comprise sent and received to signal it is relevant more A component (such as processor, modulator, multiplexer, demodulator, demultiplexer or antenna etc.).

Network side equipment 102 can be communicated with multiple terminal devices (such as terminal device 116 and terminal device 122).So And, it will be understood that network side equipment 102 can lead to any number of terminal device for being similar to terminal device 116 or 122 Letter.Terminal device 116 and 122 can be such as cellular phone, smart phone, portable computer, handheld communication devices, hand-held meter Calculate equipment, satellite radio, global positioning system, PDA and/or any for what is communicated on wireless communication system 100 Other suitable equipment.

As shown in Figure 1, terminal device 116 is communicated with antenna 112 and 114, wherein antenna 112 and 114 passes through forward link 118 send information to terminal device 116, and receive information from terminal device 116 by reverse link 120.In addition, terminal device 122 communicate with antenna 104 and 106, and wherein antenna 104 and 106 sends information to terminal device 122 by forward link 124, and Information is received from terminal device 122 by reverse link 126.

For example, in frequency division duplex (frequency division duplex, FDD) system, for example, forward link 118 It is available with different frequency bands used in reverse link 120, forward link 124 it is available with used in reverse link 126 not Same frequency band.

For another example in time division duplex (time division duplex, TDD) system and full duplex (full duplex) In system, common frequency band is can be used in forward link 118 and reverse link 120, and forward link 124 and reverse link 126 can be used Common frequency band.

The every group of antenna and/or region that are designed to communication are known as the sector of network side equipment 102.For example, can be by day Line group is designed as and the terminal equipment in communication in the sector of 102 overlay area of network side equipment.Before network side equipment 102 passes through During being communicated respectively with terminal device 116 and 122 to link 118 and 124, the transmitting antenna of network side equipment 102 The signal-to-noise ratio of forward link 118 and 124 can be improved using beam forming.In addition, with network side equipment by individual antenna to The mode that its all terminal device sends signal is compared, and utilizes beam forming to associated coverage in network side equipment 102 When the terminal device 116 and 122 of middle random dispersion sends signal, the mobile device in neighboring community will receive less interference.

In given time, network side equipment 102, terminal device 116 or terminal device 122 can be wireless communication and send dress It sets and/or radio communication receiver.When sending out data, radio communication transmitter can encode data for passing It is defeated.Specifically, radio communication transmitter, which can obtain, (such as generates, receives from other communication devices or in memory save Deng) to be sent to by channel radio communication receiver certain amount data bit.This data bit may include In the transmission block (or multiple transmission blocks) of data, transmission block be can be segmented to generate multiple code blocks.

In order to enable the embodiment of the present invention is easier to understand, first below to the transmission of DMRS involved in present invention implementation Process is illustrated, these explanations are not construed as the restriction to scope of protection needed for the present invention.

Specifically, sending ending equipment (for example, downlink transfer is the network equipment, uplink is terminal device) is according to DMRS Pattern sends the DMRS and data of precoding processing can after such receiving device receives the information of sending ending equipment transmission To obtain DMRS according to the DMRS pattern, and data are obtained to data demodulation according to DMRS.

In practical applications, sending ending equipment and receiving device require to know the character position that DMRS is occupied, also It is to say, in order to make receiving device accurately solve adjusting data, sending ending equipment and receiving device are needed using identical DMRS pattern communicated.Specifically, sending ending equipment maps DMRS according to DMRS pattern, receiving device is according to the DMRS Pattern demapping DMRS.

The embodiment of the present application relate generally to communication equipment (network equipment or terminal device) according to what kind of DMRS pattern into The mapping of row DMRS or demapping.With reference to the accompanying drawing, the method for being used for transmission DMRS of the embodiment of the present application is carried out detailed Thin description.

Fig. 2 shows the schematic flow charts according to the method that is used for transmission DMRS of the embodiment of the present application.It is shown in Fig. 2 Method 200 can be applied in any one above-described communication system.Method shown in Fig. 2 can be held by communication equipment Row, the communication equipment can be the network equipment or terminal device, which can be any one above-described network Equipment, the terminal device can be any one above-described terminal device, and the embodiment of the present application is not limited to this.It is specific and Speech, method 200 shown in Fig. 2 include:

210, communication equipment determines the present mode of scheduling of resource unit, which includes frequency-hopping mode or polymerization mould Formula, the frequency-hopping mode indicate that a part of symbol is located at the first frequency range in a scheduling of resource unit, and another part symbol is positioned at the Two frequency ranges, the aggregation scheme indicate multiple scheduling of resource unit aggregation transfers.

It should be understood that DMRS pattern is referred to as DMRS distributed intelligence or DMRS attribute, the DMRS in the embodiment of the present application Pattern can indicate the character position and symbol data that DMRS is occupied, and the embodiment of the present application is not limited to this.

220, which carries out the mapping or demapping of DMRS using DMRS pattern corresponding with present mode, In, the symbol of DMRS occupancy in the character position and preset DMRS pattern that DMRS is occupied in the corresponding DMRS pattern of the present mode Number position difference.

It should be understood that DMRS pattern can indicate the character position that DMRS is occupied, and DMRS pattern can also in the embodiment of the present application With the referred to as position DMRS, DMRS attribute or Data distribution information etc., the embodiment of the present application is not limited to this.

And the pattern of the DMRS in the embodiment of the present application under present mode is different from preset pattern, the embodiment of the present application energy Enough according to different modes, the character position for neatly DMRS being selected to occupy, and then the embodiment of the present application can satisfy different moulds The requirement of formula promotes network performance.

The specific example of the method for being used for transmission DMRS of the embodiment of the present application is described respectively below with reference to Fig. 3 and Fig. 4.

Fig. 3 shows the method for transmission DMRS of the embodiment of the present application a kind of, and Fig. 3 describes the embodiment of the present application in downlink The method that DMRS is transmitted in transmission, specifically, as shown in figure 3, this method 300 includes:

310, the network equipment determines the present mode of scheduling of resource unit.

Specifically, the network equipment can determine present mode according to various ways.

Optionally, in one implementation, the channel state information that the network equipment can be reported according to terminal device, with And the network state of cell determines present mode.

Optionally, in another implementation, the network equipment can determine present mode according to type of service.Wherein, industry Service type may include the business etc. for needing the business of fast demodulation or needing high transformation property.

Optionally, in another implementation, the instruction information determination that the network equipment can be sent according to terminal device is worked as Premode, that is to say, that terminal device can be according to current state, for example, network state or service condition determine current mould Formula, then terminal device indicates the network equipment present mode.In this case, terminal device can send to the network equipment and refer to Show information, so that the instruction information that the network equipment is sent according to terminal device determines the present mode.

320, the network equipment carries out the mapping of DMRS according to the corresponding DMRS pattern of present mode.

Specifically, the network equipment maps DMRS and data according to DMRS pattern, and sends DMRS and data after mapping.

In one implementation, it is good to can be systemic presupposition for the corresponding DMRS pattern of present mode, that is to say, that is System can preset the mode of scheduling of resource unit and the corresponding relationship of DMRS pattern, in the network equipment and terminal device in determination After present mode, the corresponding DMRS pattern of present mode can be determined according to the preset corresponding relationship.

In another implementation, the network equipment can determine corresponding DMRS pattern according to present mode, and pass through The corresponding DMRS pattern of the second indication information instruction terminal equipment present mode.For example, the network equipment can be according to current mould Channel status corresponding to formula or business demand etc. flexibly determine the corresponding DMRS pattern of the present mode, and the application is implemented Example is not limited to this.

330, terminal device carries out the demapping of DMRS according to the corresponding DMRS pattern of present mode.

Terminal device, can be according to the corresponding DMRS pattern of the present mode after the data for receiving network equipment transmission The demapping of DMRS is carried out, and adjusting data is solved according to DMRS.

It should be understood that terminal device needs to know that the network equipment carries out DMRS mapping when institute before the demapping for carrying out DMRS The corresponding DMRS pattern of the DMRS pattern namely present mode used.

In one implementation, it is good to can be systemic presupposition for the corresponding DMRS pattern of present mode, that is to say, that is System can preset the mode of scheduling of resource unit and the corresponding relationship of DMRS pattern, and scheduling of resource list has been determined in terminal device The corresponding DMRS pattern of present mode can be determined in the case where meta schema according to the preset corresponding relationship.Specifically, terminal Equipment can determine present mode according to various ways.

Alternatively, in another implementation for determining DMRS pattern, terminal device is sent according to the network equipment Second indication information determines the corresponding DMRS pattern of the present mode.

Fig. 4 shows the method for transmission DMRS of the embodiment of the present application a kind of, and Fig. 4 describes the embodiment of the present application in uplink The method that DMRS is transmitted in transmission, specifically, as shown in figure 4, this method 400 includes:

410, terminal device determines the present mode of scheduling of resource unit.

It should be understood that step 410 determines that the mode of present mode is similar with terminal device in the step 330 in Fig. 3, to avoid It repeats, it is appropriate herein to omit detailed description.

420, terminal device carries out the mapping of DMRS according to the corresponding DMRS pattern of present mode.

Specifically, terminal device determines the corresponding DMRS pattern of present mode first, and is mapped according to the DMRS pattern DMRS and data, and send DMRS and data after mapping.

Specifically, terminal device determines the step in the method and Fig. 3 of the pattern of the corresponding DMRS of present mode in step 420 Terminal device determines that the method for the corresponding DMRS pattern of present mode is corresponding in rapid 330, appropriate herein to omit in detail to avoid repeating Thin description.

430, the network equipment carries out the demapping of DMRS according to the corresponding DMRS pattern of present mode.

The network equipment, can be according to the corresponding DMRS pattern of the present mode after the data for receiving terminal device transmission The demapping of DMRS is carried out, and adjusting data is solved according to DMRS.

It should be understood that the network equipment needs to know that terminal device carries out DMRS mapping when institute before the demapping for carrying out DMRS The corresponding DMRS pattern of the DMRS pattern namely present mode used.

It should be understood that the network equipment determines in the method and Fig. 3 of the corresponding pattern of present mode in step 320 in step 430 The network equipment determines that the method for the corresponding pattern of present mode is corresponding, appropriate herein to omit detailed description to avoid repeating.

Described above is the concrete forms for transmitting DMRS in the embodiment of the present application when downstream transmission, with reference to the accompanying drawing in detail The concrete form of DMRS pattern in thin description the embodiment of the present application.

Specifically, preset DMRS pattern can will be exemplified in detail below there are many situation,

Situation one: default pattern is preceding load pattern (front loaded pattern), as shown in figure 5, being provided with one For source scheduling unit occupies 14 symbols, DMRS occupies continuous N number of symbol in a scheduling of resource unit, N be greater than or Integer equal to 1 shows the situation of N=1 in Fig. 5.It should be understood that continuous N number of symbol is referred to as a group code, it should One group code includes at least one continuous (N number of) symbol, and the embodiment of the present application is not limited to this.

Situation two: default pattern is additional pattern (additional pattern), as shown in fig. 6, with a resource tune It spends for unit 14 symbols of occupancy, DRMS occupies L group code, and L is the integer more than or equal to 2, wherein the L group code is equal Non-conterminous, each group code includes continuous at least one symbol in the L group code；In Fig. 6 by taking L=2 as an example, i.e. DMRS is occupied Continuous M symbol and continuous K symbol in one scheduling of resource unit, wherein K symbol of the M symbol and this not phase Neighbour, M and K are the integer more than or equal to 1.M=1 is shown in Fig. 6, and the case where K=1, but the embodiment of the present invention and unlimited In this, for example, M and K can also be equal to 2 or 3 etc..Optionally in the embodiment of the present application, however it is not limited to which DMRS occupies two group codes The case where, L can also be equal to 3 namely DMRS and also take up continuous P symbol in a scheduling of resource unit of the non-frequency hopping, Optionally, L can also be equal to 4,5 etc..

It should be understood that DMRS only takes up a group code in situation one above, DMRS occupies at least two groups symbol, feelings in situation two Condition one and situation two can correspond to different application scenarios.Situation two can fluctuate bigger scene, example with respective channels state Such as, the scene that terminal device fast moves, the accurate demodulation in situation two by transmission multiple groups DMRS realization to data.And feelings Condition one can be stable with respective channels epidemic situation comparison scene, therefore, by transmit one group of DMRS can be realized to the accurate of data Demodulation.

When being respectively frequency-hopping mode and aggregation scheme below for present mode, in conjunction with both above situation, carefully retouch respectively State the corresponding DMRS pattern of present mode of the embodiment of the present application.

Description corresponds to the embodiment of the present application of above situation one and situation two when present mode is frequency-hopping mode first Pattern.

Specifically, when present mode is frequency-hopping mode, for above situation one, in the embodiment of the present application, such as Fig. 7 institute Show, DMRS occupies continuous N in first frequency range in the corresponding DMRS pattern of the present mode₁A symbol and second frequency Continuous N in section₂A symbol, N₁For the integer more than or equal to 1, N₂For the integer more than or equal to 1.Fig. 7 shows N₁=1, N₂=1 situation.

Fig. 8 is shown in existing way, in frequency-hopping mode, still according to the location transmission preset in pattern shown in Fig. 5 DMRS, as seen from Figure 8, transmission has DMRS in first frequency range, and without transmission DMRS in second frequency range, so And in practical applications, often channel status corresponding from first frequency range is different for the corresponding channel status of second frequency range, because This carries out solution adjusting data according only to the DMRS of the first band transmissions, will affect the accuracy of the second frequency range data demodulation, influences net Network performance.

And in the embodiment of the present application, in frequency-hopping mode, since the channel status of two frequency ranges is different, the application DMRS is transmitted in each frequency range in embodiment, enables receiving end corresponding according to the DMRS demodulation in each frequency range Data can be improved the accuracy of data demodulation, promote demodulation performance.

It should be understood that N2 character position can be any one position in second frequency range, the embodiment of the present application is not It is limited to this.

Optionally, as one embodiment, N₁=N₂, and the N1 symbol in first frequency range and in first frequency range The positional symmetry of the N2 symbol in position and second frequency range.For example, as shown in figure 9, N₁=N₂=1, and, N₁And N₂It is Third character position in first frequency range and second frequency range.

Optionally, as another embodiment, N₁=N₂=1 or 2.

Optionally, the N₁A symbol includes first symbol in the first area in first frequency range, and described One region includes data and the symbol that DMRS is occupied.

Optionally, the N₂A symbol includes first symbol in second frequency range.

Optionally, as another embodiment, the N₂A symbol includes first symbol in second frequency range.For example, such as Shown in Fig. 7, N₂=1, and DMRS occupies first symbol in the second frequency range.It should be understood that illustrating only N in Fig. 7₂=1 feelings Shape, but the embodiment of the present application is not limited to this, when DMRS occupies multiple character positions in second frequency range, multiple symbol It continuously arranges from first symbol in second frequency range, for example, in N₂When=2, then DMRS occupies first in the second frequency range It is a meet meet with second.

When present mode is frequency-hopping mode, for the situation of the additional pattern of above situation two, in the embodiment of the present application, As shown in Figure 10, DMRS occupies continuous M in the symbol of first frequency range in the corresponding DMRS pattern of the present mode₁A symbol With continuous K₁Continuous M in a symbol and second frequency range₂A symbol and continuous K₂A symbol, wherein the M₁A symbol Number with the K₁A symbol is non-conterminous, the M₂A symbol and the K₂A symbol is non-conterminous, M₁、K₁、M₂、K₂It is whole more than or equal to 1 Number.Figure 10 shows M₁、K₁、M₂、K₂It is equal to 1 situation.

Optionally, described above is before frequency hopping, if there is 2 sections of DMRS, then after frequency hopping, front and back frequency range respectively has 2 sections.But The embodiment of the present application is not limited to this, for example, as long as DMRS is more than 1 section, after frequency hopping, can be 3 types hereinafter before frequency hopping Any one in type 2.It specifically may refer to the description for being hereinafter directed to type 2.

Figure 11 is shown in existing way, in frequency-hopping mode, is passed still according to the position in default pattern shown in fig. 6 Defeated DMRS transmits one group of DMRS in first frequency range and second frequency range, however, in above-mentioned feelings as seen from Figure 11 Under the scene of condition two, since channel status fluctuation is larger, one group of DMRS is only transmitted in a frequency range and is difficult to ensure logarithm According to accurate demodulation.

And in the embodiment of the present application, it, can by transmitting multiple groups (L group) DMRS in two frequency ranges in frequency-hopping mode In the case where channel status fluctuates biggish situation, guarantee the accurate demodulation of data.

It should be understood that being preset in two group codes that DMRS is occupied in additional pattern described in Fig. 6, the first group code is located at money The case where first half of source scheduling unit, the second group code is located at the latter half of the scheduling of resource unit, but the present invention is real It applies example to be not limited to this, for example, the additional pattern in Fig. 6, which can develop into, can be respectively positioned on resource tune in two group codes of occupancy The first half of unit is spent, for example, DMRS occupies the 3rd and the 6th symbol in default additional pattern.So in this case, Pattern in existing way shown in Figure 11 in frequency-hopping mode can develop into first band transmissions, two groups of DMRS, example Such as, in the 3rd and the 6th symbol transmission DMRS of first frequency range, DMRS is not transmitted in second frequency range.In such case Under, since second frequency range does not transmit DMRS, then it will affect the accuracy of the second frequency range data demodulation, influence network performance.

It should be understood that not limited the character position of the DMRS in the first frequency range and the second frequency range in the embodiment of the present application It is fixed.As long as including L group DMRS in each frequency range, the embodiment of the present application limits not to this.

Optionally, as another embodiment, M₁=M₂, K₁=K₂, and the M in first frequency range₁A symbol and the K1 are a The positional symmetry of the M2 symbol and the K2 symbol in the position of symbol and second frequency range.For example, as shown in figure 12, M₁ =M₂=1, K₁=K₂=1, and DMRS occupies the third in first frequency range and second frequency range and the 6th sign bit It sets.

Optionally, as another embodiment, the M₂A symbol includes first symbol in second frequency range.For example, such as Shown in Figure 10, M₂=1, and M₂First symbol in corresponding second frequency range.It should be understood that illustrating only M in Figure 10₂=1 feelings Shape, but the embodiment of the present application is not limited to this, when DMRS occupies multiple character positions in second frequency range, multiple symbol It continuously arranges from first symbol in second frequency range, for example, in M₂When=2, then DMRS occupies first in the second frequency range It is a meet meet with second.

Optionally, as another embodiment, M1=M2=1 or 2, K1=K2=1 or 2.

Optionally, the K₁A symbol includes a symbol last, penultimate symbol in first frequency range Or third last symbol.

Optionally, as another embodiment, the M₁A symbol includes first in first area in first frequency range Symbol, the first area include institute's data and the symbol that DMRS is occupied.

Optionally, as another embodiment, the M₂A symbol includes first symbol in second frequency range.

Optionally, as another embodiment, M₁=M, the M₁A symbol is identical as the position of the M symbol, the K₁ A symbol includes the last symbol in first frequency range, the M₂Symbol includes first symbol in first frequency range Number, K₂=K, the k₂Symbol is identical as the position of the K symbol, alternatively, the K₂A character position is predeterminated position.

Optionally, as another embodiment, M₁=M, the M₁A symbol is identical as the position of the M symbol, the K₁ A symbol includes the 7th symbol in entire scheduling of resource unit, and the entire scheduling of resource unit includes the first frequency range and the The sum of the symbol that two frequency ranges occupy, the entire scheduling of resource unit include 14 symbols, the M₂Symbol includes described entire The 8th symbol in scheduling of resource unit, K₂=K, the K₂Symbol is identical as the position of the K symbol, alternatively, the K₂ A character position is predeterminated position.

It should be understood that being directed to above situation two, the situation of L=2 in a scheduling of resource unit is above only described, i.e., DMRS occupies the example of two group codes, but the embodiment of the present application is not limited to this, and L can also be equal to 3,4 etc. in practical applications, DMRS i.e. in DMRS pattern can occupy 3 groups, 4 groups or more group DMRS, for example, as shown in figure 13, a preset money Source scheduling unit includes three groups of DMRS, i.e., DMRS is occupied in a scheduling of resource unit of non-frequency hopping in the preset DMRS pattern Continuous M symbol, continuous K symbol and continuous P symbol, the P symbol, the M symbol and the K symbol are not It is adjacent；So DMRS also takes up continuous M in the symbol of the first frequency range in the corresponding DMRS pattern of present mode₁A symbol, company Continuous K₁A symbol and continuous P₁Continuous M2 symbol, continuous K in a symbol and second frequency range₂A symbol and company Continuous P₂A symbol；Wherein, the P₁A symbol and the M₁A symbol and the K₁A symbol is non-conterminous, the P₂A symbol and the M₂It is a Symbol and the K₂A symbol is non-conterminous, M, K, P, M₁、K₁、P₁、M₂、K₂、P₂For the integer more than or equal to 1.For sake of simplicity, figure M, K, P, M are illustrated only in 13₁、K₁、P₁、M₂、K₂、P₂It is equal to 1 situation, but the embodiment of the present application is not limited to this.

It should be understood that the case where being equal to 2 or 3 with above-mentioned L the case where L is equal to 4 or other numerical value, is similar, in order to avoid It repeats, no longer repeats one by one herein.

The foregoing describe when present mode is frequency-hopping mode, the application under corresponding above situation one and situation two is implemented The situation of the pattern of the corresponding DMRS of present mode of example,

It should be understood that several continuous symbols that DMRS is occupied in the embodiment of the present application are referred to as one group of DMRS symbol Number or one section of DMRS symbol, wherein the number (either number) of DMRS herein indicate the symbol that DMRS is occupied group number or The number of segment of symbol, rather than be the number of symbol.In other words, in the embodiment of the present application DMRS can be multiple groups or multistage, Wherein, discontinuously namely between section DMRS a symbol is at least spaced in time between two sections of DMRS.One group of DMRS or one What section DMRS was indicated is at least to occupy a continuous symbol (such as 1,2 or 3) in the time domain.Figure 20 shows this Apply for 4 kinds of typical types (type) under the frequency-hopping mode in embodiment, i.e. Class1 and 3 seed types 2,3 seed type 2 packet Include type 2-I, type 2-II and type 2-III.

Figure 20 shows 4 kinds of typical types (type) under the frequency-hopping mode in the embodiment of the present application, i.e. Class1 and 3 Seed type 2,3 seed type 2 include type 2-I, type 2-II and similar 2-III.

Wherein, Class1 is only one section of DMRS in each frequency range after frequency hopping, and type 2-I is equal in each frequency range after frequency hopping There are two sections of DMRS, type 2-II to have one section of DMRS, type in second frequency range there are two sections of DMRS in first frequency range after frequency hopping 2-III has two sections of DMRS to have one section of DMRS in first frequency range after frequency hopping in second frequency range.

It should be understood that illustrating only the case where every section of DMRS occupies a symbol, but this Shen in Figure 20 in the embodiment of the present application Please embodiment is not limited to this, as long as one section of DMRS occupies continuous at least one symbol, for example, one section of DMRS occupies one A symbol occupies continuous two symbols.

It should also be understood that showing the case where frequency hopping latter two frequency range divides 14 symbols equally in the embodiment of the present application Figure 20, i.e., There are 7 symbols in each frequency range, but the embodiment of the present application is not limited to this, the number of symbol can not also phase in two frequency ranges Deng including 8 symbols in the second frequency range for example, including 6 symbols in the first frequency range；Alternatively, the first frequency range includes 4 symbols, Second frequency range includes 10 symbols, alternatively, first frequency range includes 9 symbols, second frequency range includes 5 symbols etc..

It should be understood that being illustrated only in the embodiment of the present application in Figure 20,4 seed types of DMRS pattern, but every kind of pattern type In each DMRS position and DMRS between relationship be not described, separately below for each type and its DMRS Position is described in detail.

It should be understood that DMRS " is located at " some symbol in the embodiment of the present application, it can indicate that DMRS occupies the symbol, it can also be with Indicate that DMRS is fixed on the symbol, the embodiment of the present application is not limited to this.

Wherein, for first frequency range, only 1 section of DMRS, the position of 1 section of DMRS can follow -24 pairs of following figure 21 4 principles answered.

It should be understood that 1 section of DMRS can occupy 1 symbol, two continuous symbols, the embodiment of the present application can also be occupied For the simplicity of description, the example that 1 section of DMRS occupies 1 symbol is only enumerated, but the embodiment of the present application is not limited to this.

It should also be understood that in Figure 21-24 for ease of description, only depicting the position of the DMRS in the first frequency range, not Draw the position of the DMRS in the second frequency range.

First principle: as shown in figure 21, the position of 1 section of DMRS is located in first frequency range in all OFDM symbols Between as shown in figure 21, N indicate first frequency range in all OFDM symbol numbers.

It should be strongly noted that 1 section of DMRS can occupy (N/ when the number of symbol in the first frequency range is even number 2)+1 or (N/2) a symbol.When the number of symbol in the first frequency range is odd number, which can occupy intermediate symbols. For example, one section of DMRS occupies the 4th symbol in N=7.

Second principle: as shown in figure 22, the position of 1 section of DMRS is located at the centre in first frequency range in first area Symbol, wherein first area includes data and the symbol that DMRS is occupied.As shown in figure 22, N indicates symbol shared by first area Number.

It should be understood that the first area in the application in a certain frequency range is the symbol that data and DMRS are occupied in the frequency range, it is It avoids repeating, hereafter no longer repeat one by one.

Third principle: as shown in figure 23, the position of 1 section of DMRS uses the finger of preceding load (front loaded) DMRS Show the position of information instruction ", wherein the position in non-frequency hopping where instruction information instruction first segment DMRS.

As shown in figure 23, in the 4th symbol, (when non-frequency hopping, DMRS occupies the 4th to instruction information instruction front loaded Symbol), then the DMRS after frequency hopping in the first frequency range also occupies the 4th symbol.

4th principle: as shown in figure 24, the position of 1 section of DMRS is located at the m-th symbol that first area starts.In reality M can be with 1 in the application of border.But the embodiment of the present application is not limited to this, for example, M=2,3,4 or 5 etc..

For second frequency range, only 1 section of DMRS, the position of 1 section of DMRS may follow following 7 principles.

It should also be understood that in Figure 25-29 for ease of description, only depicting the position of the DMRS in the second frequency range, not Draw the position of the DMRS in the first frequency range.

First principle: as shown in figure 25, the position of 1 section of DMRS is located in second frequency range in all OFDM symbols Between, as shown in figure 25, N indicates all OFDM symbol numbers in first frequency range.

It should be strongly noted that 1 section of DMRS can occupy (N/ when the number of symbol in the second frequency range is even number 2)+1 or (N/2) a symbol.When the number of symbol in the first frequency range is odd number, which can occupy intermediate symbols. For example, one section of DMRS occupies the 4th symbol in N=7.

Second principle: as shown in figure 26, the position of 1 section of DMRS is located at the intermediate symbol of first area in second frequency range Number, as shown in figure 26, N indicates symbolic number shared by first area.

3rd principle: as shown in figure 27, the position of 1 section of DMRS is located at the m-th symbol that first area starts.In reality M can be with 1 in the application of border.But the embodiment of the present application is not limited to this, for example, M=2,3,4 or 5 etc..

4th principle: as shown in Figure 28 and Figure 29, in the position of one section of DMRS in second frequency range and first frequency range First segment DMRS positional symmetry or corresponding.

Wherein, Figure 28 shows position of one section of DMRS in all symbols of the second frequency range in second frequency range and the Positional symmetry of first DMRS in all symbols of the first frequency range in one frequency range.Figure 29 is shown in second frequency range One section of DMRS in the position in the first area symbol of the second frequency range with first DMRS in first frequency range in the first frequency Positional symmetry in all first area symbols of section.

As shown in figure 28, here symmetrically can be integrated symmetric, for example, the first frequency range and symbolic number in second frequency range Equal, DMRS occupancy character position is symmetrical in DMRS occupancy character position, with the second frequency range in the first frequency range, for example, in being all Between position, first attached drawing in Figure 28 show the situation for occupying middle position.Optionally, as shown in figure 28, pair here It can be referred to as rear symmetrical, specifically, DMRS occupies X character position reciprocal in the first frequency range, then in the second frequency range DMRS equally occupies X character position reciprocal, and the central diagram in Figure 28 shows the situation of X=3；Optionally, such as Figure 28 institute Show, here symmetrically can be to be preceding symmetrical, specifically, DMRS occupies positive number X character position in the first frequency range, then the DMRS equally occupies the third attached drawing in positive number X character position Figure 28 in two frequency ranges, shows the situation of X=4.

As shown in figure 29, here symmetrically can be rear symmetrical, specifically, DMRS occupies X reciprocal in the first frequency range A character position, then DMRS equally occupies X character position reciprocal in the second frequency range, the central diagram in Figure 29 shows X =4 situation, third show the situation of X=4；Optionally, as shown in figure 29, here symmetrically can be preceding symmetrical, Specifically, DMRS occupies positive number X character position in the first frequency range, then DMRS equally occupies positive number the in the second frequency range X character position, first attached drawing in Figure 29, shows the situation of X=1.

5th principle: as shown in figure 30, the position of 1 section of DMRS is referred to using the instruction information of additional DMRS The position shown, wherein the instruction information indicates the position where additional DMRS in non-frequency hopping.It should be noted that if there is Multistage additional DMRS, the position of 1 section of DMRS then with instruction information instruction N section it is identical, such as with first segment phase Together.Under this mode, the position of one section of DMRS can be one in { 7,8,10,12,13 }.

The position of 6th principle, 1 section of DMRS is selected from certain specific several symbol, for example, 1 section of DMRS includes 1 A symbol, then 1 section of DMRS can occupy the 1st symbol, the 3rd symbol or the 5th symbol in the second frequency range or this 1 Section DMRS can occupy the 8th symbol, the 10th symbol or the 12nd symbol in entire scheduling unit.

Optionally, the position of 1 section of DMRS can also be with the character position of frame structure or PUSCH (or first area Position) a kind of binding (perhaps have corresponding relationship) frame structure or a kind of PUSCH character position can correspond to a kind of placement position It sets, the embodiment of the present application is not limited to this.

1 end DMRS occupies which character position can be not limited to this by signal deployment, the embodiment of the present application.

7th principle: 1 section of DMRS be located at on N number of symbol after the first segment DMRS of the first frequency range, such as N= 4/6/8。

It should be understood that describing the position for having one section of DMRS in the first frequency range and the second frequency range respectively above.In reality In, the position of DMRS can be formed by above-mentioned any combination in Class1, and the embodiment of the present application is not limited to this.Namely Say, after Class1 has been determined, the network equipment and terminal device can according to the rule preset, i.e., the one of above-mentioned any combination Kind rule, determines DMRS pattern.

Optionally, in practical applications, the position of DMRS can be passed through signal deployment to terminal by the network equipment in Class1 Equipment, for example, can be not limited to this by RRC, DCI or MAC CE signal deployment, the embodiment of the present application.

For first frequency range, have 2 sections of DMRS (corresponding types 2-I and 2-II), the position of 2 sections of DMRS may follow with Lower 7 principles.

It should be understood that every section of DMRS can occupy 1 symbol in 2 sections of DMRS, two continuous symbols can also be occupied, this Apply for that embodiment has only enumerated the example that every section of DMRS occupies 1 symbol for the simplicity of description, but the embodiment of the present application is not It is limited to this.

It should also be understood that in Figure 31-34 for ease of description, only depicting the position of the DMRS in the first frequency range, not Draw the position of the DMRS in the second frequency range.

First principle: as shown in figure 31, the first segment in 2 sections of DMRS is fixed on entire first frequency range, the past number the N1 OFDM symbol；Second segment is fixed in entire first frequency range from rear several the N2 OFDM symbol.

Second principle: as shown in figure 32, the first segment in 2 sections of DMRS is fixed on the first area in the first frequency range Symbol the past several the N1 OFDM symbol；Second segment is fixed on the first area symbol in the first frequency range from rear several the N2 OFDM Symbol.

3rd principle: as shown in figure 33, the first segment in 2 sections of DMRS, using preceding load (front loaded) DMRS Instruction information instruction position, wherein in non-frequency hopping the instruction information instruction first segment DMRS where position.Second segment The first area symbol in the first frequency range is fixed on from rear several the N2 OFDM symbol, for example, N2=1 or 2,3 etc..

It should be understood that preceding load DMRS refers to the first segment DMRS in scheduling of resource unit in the application, it is normally at The first half of scheduling of resource unit.It should be understood that front loaded DMRS is equal with preceding load DMRS in the application. Additional DMRS is equal with attachment DMRS, other section of DMRS after the preceding load DMRS referred to.

4th principle: as shown in figure 34, the first fragment position uses the instruction of front loaded DMRS in 2 sections of DMRS The position of information instruction；The position being located in the frequency range that second segment is indicated using additional DMRS instruction information, In, when additional DMRS instruction information indicates multiple positions in the frequency range, then the 2nd section is set in multiple position The last one.

5th principle: the first segment in 2 sections of DMRS, the first area in entire first frequency range or the first frequency range It is intermediate；Second segment is fixed on the first area symbol in the first frequency range from rear several the N2 OFDM symbol.

6th principle: the first segment in 2 sections of DMRS is identical as the first fragment position when non-hopping；Second segment is fixed The the 1st, 2 or 3 symbol of inverse in the first frequency range.Specifically, the position second segment DMRS can with frame structure bind or it is corresponding, The embodiment of the present application is not limited to this.

7th principle: the first segment in 2 sections of DMRS is fixed on entire scheduling resource, in the past several the N1 OFDM symbols Number；N-th symbol of the second segment after first segment, N=1/2/3/4.

For second frequency range, there is 2 sections of DMRS (corresponding types 2-I and 2-III), the position of 2 sections of DMRS may follow 8 principles below.

First principle: the first segment in 2 sections of DMRS is fixed on entire 2nd frequency range, in the past several the N1 OFDM symbols Number；Second segment is fixed in entire 2nd frequency range from rear several the N2 OFDM symbol.

Second principle: the first segment in 2 sections of DMRS, the first area symbol the past number being fixed in the 2nd frequency range N1 OFDM symbol；Second segment is fixed on the first area symbol in the 2nd frequency range from rear several the N2 OFDM symbol.

3rd principle: as shown in figure 35, the 2nd section in 2 sections of DMRS, using the instruction information of additional DMRS The position of instruction, wherein the instruction information indicates the position DMRS of the frequency range in non-frequency hopping, wherein instruction information instruction When the multistage position DMRS, then the 2nd section is set to the position where the final stage DMRS of instruction information instruction.First segment is fixed First area symbol the past several the N1 OFDM symbol in the second frequency range, for example, N1=1,2 or 3 etc..

4th principle: the position that 2 sections of DMRS are indicated using the instruction information of additional DMRS, wherein not The instruction information indicates the position in the frequency range where two sections of DMRS when frequency hopping, wherein when instruction information indicate it is more in the frequency range When a position DMRS, can choose two positions as 2 sections of positions DMRS, for example, select first and the last one as 2 sections of positions DMRS.

5th principle, 2 sections of DMRS are located at scheduled character position, for example, every section of DMRS includes in two sections of DMRS One symbol, then two sections of DMRS may include two symbols in the 1st, 3 and 5 symbol in second frequency range, alternatively, Two sections of DMRS may include two symbols in the 8th, 10 and 12 symbol in entire scheduling of resource unit.

Optionally, the position of 2 sections of DMRS can also be with the character position of frame structure or PUSCH (or first area Position) a kind of binding (perhaps have corresponding relationship) frame structure or a kind of PUSCH character position can correspond to a kind of placement Position, the embodiment of the present application are not limited to this.

2 end DMRS occupies which character position can be not limited to this by signal deployment, the embodiment of the present application.

6th principle, first segment DMRS is located at first symbol in 2 sections of DMRS, and second segment DMRS is located at alternative set In some.For example, second segment DMRS is located at one in the symbol 10 and symbol 12 in entire scheduling unit, the application is real Example is applied to be not limited to this.

Optionally, the position of second segment DMRS can also be with the character position of frame structure or PUSCH (or first area Position) a kind of binding (perhaps have corresponding relationship) frame structure or a kind of PUSCH character position can correspond to a kind of placement position It sets, the embodiment of the present application is not limited to this.

7th principle: the first segment in 2 sections of DMRS is fixed on entire 2nd frequency range, in the past several the N1 OFDM symbol； M-th symbol (M=1/2/3/4) of the second segment after first segment.

8th principle: the first segment in 2 sections of DMRS, N1 after the first segment DMRS of the first frequency range；Second M-th symbol (N1=2*M of the section after first segment；M=1/2/3/4)

It should be understood that describing the position for having one section of DMRS in the first frequency range and the second frequency range respectively above.And the There is specific location when two sections of DMRS in one frequency range and the second frequency range.In practical applications, the position of DMRS can in type 2-I With by thering is specific location any combination when two sections of DMRS to form in above-mentioned first frequency range and the second frequency range, the embodiment of the present application It is not limited to this.That is, after type 2-I has been determined, the network equipment and terminal device can according to the rule preset, A kind of rule of i.e. above-mentioned any combination, determines DMRS pattern.

Similarly, the position of DMRS can be directed to first frequency range by above-mentioned in type 2-II, there is 2 sections of DMRS, Yi Jizhen To second frequency range, the various combinations of the position of only 1 section DMRS, the embodiment of the present application is not limited to this.That is, true After having determined type 2-II, the network equipment and terminal device can be according to the rule preset, i.e., a kind of rule of above-mentioned any combination It is fixed, determine DMRS pattern.

Similarly, the position of DMRS can be directed to first frequency range, only 1 section of DMRS by above-mentioned in type 2-III, and For second frequency range, there are the various combinations of the position of 2 sections of DMRS, the embodiment of the present application is not limited to this.That is, true After having determined type 2-III, the network equipment and terminal device can be according to the rule preset, i.e., a kind of rule of above-mentioned any combination It is fixed, determine DMRS pattern.

Optionally, in practical applications, the position of DMRS can be matched by the network equipment by signaling in above-mentioned 3 seed type 2 It sets to terminal device, for example, can be not limited to this by RRC, DCI or MAC CE signal deployment, the embodiment of the present application.

Below by taking the uplink under frequency-hopping mode as an example, it is described in detail in the embodiment of the present application and when uses The specific example that the corresponding DMRS pattern of which kind of type of four seed types carries out data transmission in above-mentioned Figure 20.

In order to enable embodiments herein is easier to understand, it is right first before the method for description the embodiment of the present application Part noun in the embodiment of the present application is defined as follows:

In the embodiment of the present application, additional DMRS (additional DMRS) configuration can be by configuring the number of additional DMRS The instruction information of mesh, the position of additional DMRS or additional DMRS is realized.

It should be understood that terminal device can according to additional DMRS configure determine DMRS position, and then can carry out DMRS and The transmission of data.

It should be understood that additional DMRS configuration parameter can pass through one in RRC, DCI, MAC CE in the embodiment of the present application Or it several configures.

It should be understood that attachment DMRS configuration parameter is referred to as the information of DMRS instruction nearby, this Shen in the embodiment of the present application Please embodiment is not limited to this, the additional DMRS indicates to be located at the DMRS after preceding load DMRS, adds DMRS and indicates information Or additional DMRS configuration parameter is used to indicate at least one of the following: with the presence or absence of the additional DMRS, described additional The position of the number of DMRS and the additional DMRS.

It should be understood that preceding load DMRS only has one section, when additional DMRS configuration parameter is configured with attachment DMRS, then entire money It include at least two sections of DMRS in the scheduling unit of source, wherein first segment DMRS is preceding load DMRS, remaining DMRS is attachment DMRS。

In the following, describing the situation that DMRS configuration parameter is configured by RRC first.

Wherein, the number for adding DMRS can add DMRS number (UL_DMRS_add_num) or uplink by uplink DMRS number (UL_DMRS_num) configures.For example, UL_DMRS_add_num=0, expression does not have additional DMRS； UL_DMRS_add_num=N (N > 0) indicates N number of additional DMRS.UL_DMRS_num=1 indicates do not have additional DMRS；UL_DMRS_num=N (N > 1) indicates N-1 additional DMRS.Optionally, the application In embodiment, additional DMRS number can also be realized indirectly by DMRS type, such as to a call number, index To certain class DMRS, such DMRS implies whether have additional DMRS, and has several additional DMRS.In other words It says, in the embodiment of the present application, can establish the corresponding relationship of index Yu DMRS number, one of call number corresponds to a kind of DMRS Number, in practical applications can be by indicating a call number, to indicate the number of the corresponding DMRS of the call number.

It should be understood that the number that the total number of DMRS is equal to additional DMRS in DMRS pattern adds 1 in the embodiment of the present application.

It should be understood that terminal device can be determined according to preset rules in the embodiment of the present application after the number of configuration DMRS The position of each DMRS can also optionally, in the embodiment of the present application determine each according to the additional DMRS location parameter of configuration The position of DMRS, the embodiment of the present application are not limited to this.

Optionally, what the symbol numbers that each additional DMRS is occupied in the embodiment of the present application can be occupied with first DMRS Symbol numbers are equal, and the embodiment of the present application is not limited to this.

The additional position DMRS can add the position DMRS (UL_DMRS_add_pos) or the position uplink DMRS by uplink (UL_DMRS_pos) it configures.For example, UL_DMRS_add_pos={ Null } or UL_DMRS_add_pos={ 0 }, indicates do not have There is additional DMRS；UL_DMRS_add_pos={ N1 or N1+N2 or N1+N2+N3 } (N1 > 0, N2 > 0, N3 > 0) is indicated There is additional DMRS, wherein non-zero number of parameters indicates additional DMRS number.For example, above-mentioned UL_DMRS_ Add_pos={ N1 or N1+N2 or N1+N2+N3 }, has respectively indicated 1,2 or 3 additional DMRS.Wherein, N1 =3 indicate 3, the interval symbol of first additional DMRS and first DMRS, or indicate that first additional DMRS occupies the 3rd Symbol, for example, when first additional DMRS occupies 2 symbols, when N1=3, first additional DMRS occupies the 3rd and the 4th A symbol.UL_DMRS_pos={ N1 } (such as N1=2 or 3), i.e. only 1 parameter, expression do not have additional DMRS. UL_DMRS_pos={ N1+N2 or N1+N2+N3 or N1+N2+N3+N4 }, indicates additional DMRS, wherein UL_ The number of non-zero parameter in DMRS_pos value subtracts 1, indicates additional DMRS number.

Additional DMRS instruction information can be added by uplink the position DMRS (UL_DMRS_add_pos) or on The additional DMRS of row indicates (UL_DMRS_add_indication) to configure.

Specifically, in the embodiment of the present application, instruction information i.e. UL_DMRS_add_ can be set as indicated shown in 1 The one-to-one relationship of pos/UL_DMRS_add_indication and the position DMRS in the embodiment of the present application, can pass through finger Show that information indicates specific value for example, as shown in table 1, instruction information value is a value in 0-p, to indicate a value The corresponding position DMRS.For example, the corresponding position DMRS is N0 when indicating information value is 0, indicate without additional DMRS, And DMRS occupies N0 symbol ((No add DMRS, FL at N0)) in preceding load pattern；It is right when indicating information value is 3 The position DMRS answered is N0+N3, indicates an additional DMRS, and occupy the N0+N3 symbol (1 add DMRS at N0+ N3), it should be appreciated that the N0+N3 symbol indicates first symbol in the continuous at least one symbol that the additional DMRS is occupied. When indicating that information takes p, the corresponding position DMRS is N0+N1, N0+N2, N0+N3, and indicating tool, there are three additional DMRS, and respectively Occupy N0+N1, N0+N2, the N0+N3 symbol.

It should be understood that different DMRS numbers of attachment can correspond to different tables in the embodiment of the present application, it is interior in the table 1 type of Rong Yubiao, details are not described herein again, in this way, being assured that corresponding table by attachment DMRS number, wraps in the table Therefore the corresponding relationship for including instruction information value and the position of DMRS can be referred to by a specific instruction information value Show the position of DMRS.

Table 1

It should be understood that RRC completes additional DMRS with postponing in the embodiment of the present application, additional is not represented DMRS is bound to be triggered or activate.RRC completes can have following 3 kinds of forms triggering additional DMRS with postponing.

The first form, data-triggered: RRC completes additional DMRS configuration, as long as there is data transmission, so that it may have Additional MDRS sends data according to additional pattern.

Second of form, MAC CE activation, Data triggering: RRC completes additional DMRS with postponing, and MAC CE swashs After (such as in UL_DMRS_add_active=1) living, sending data just has additional DMRS；If MAC CE is deactivated (such as UL_DMRS_add_active=0) living, then do not have additional DMRS.

The third form, DCI triggering: RRC completes additional DMRS with postponing, and triggering is (for example, UL_ in DCI ), DMRS_add_flag=1 sending data has additional DMRS；DCI is not triggered (for example, UL_DMRS_add_flag =0), sending data does not have additional DMRS.

Described above is in such a way that RRC configures additional DMRS configuration, similarly, can also lead in the embodiment of the present application It crosses MAC CE and configures additional DMRS,

It is similar with being configured by RRC, additional DMRS can also be configured by MAC CE, MAC CE can be passed through The number of additional DMRS or the position of additional DMRS or the instruction information of additional DMRS are configured, To complete to configure.The signalling format and signaling capability of concrete configuration may refer to the corresponding signaling in RRC configuration, to avoid weight It is multiple that details are not described herein again.

It should be understood that MAC CE completes additional DMRS with postponing in the embodiment of the present application, do not represent Additional DMRS is bound to be triggered or activate.RRC completes can have following 2 kinds of forms with postponing, and triggers additional DMRS。

The first form, data-triggered: MAC CE completes additional DMRS configuration, as long as there is data transmission, has additional MDRS；

Second of form, DCI triggering: MAC CE completes additional DMRS configuration, and triggering is (for example, UL_ in DCI ), DMRS_add_flag=1 sending data has additional DMRS；DCI is not triggered (for example, UL_DMRS_add_flag =0), sending data does not have additional DMRS.

Described above is in such a way that RRC and MAC CE configures additional DMRS configuration, similarly, the embodiment of the present application In can also pass through DCI and configure additional DMRS.

It is similar with by RRC or MAC CE configuration, additional DMRS is configured by DCI, can pass through and configure The instruction information of the number of additional DMRS or the position of additional DMRS or additional DMRS, have come At configuration.The signalling format and function of concrete configuration may refer to the corresponding signaling in RRC configuration, to avoid repeating herein no longer It repeats.

DCI is configured with additional DMRS, and additional DMRS is just triggered.

It should be understood that can carry out configuring corresponding parameter by signaling itself in additional DMRS configuration herein, optionally, Also the one-to-one relationship (table) that can establish various signaling values and index in the embodiment of the present application is carrying out DMRS configuration When, directly can configure corresponding call number by RRC, MAC CE or DCI can be realized configuration.

It is described above in the embodiment of the present application, the concrete meaning of configuration parameter configuration mode and its each configuration parameter. Divide when how to determine uplink according to above-mentioned configuration parameter in briefing the embodiment of the present application below under frequency-hopping mode DMRS pattern determines that the pattern under frequency-hopping mode is the scheme of the corresponding pattern of which specific seed type in Figure 20.

Specifically, communication equipment determines the corresponding DMRS pattern of frequency-hopping mode using the instruction information of additional DMRS, described Additional DMRS indicates the DMRS after preceding load DMRS, and the instruction information is used to indicate at least one of the following: being It is no that there are the additional DMRS, the position of the number of the additional DMRS and the additional DMRS, the frequency-hopping mode expressions one A part of symbol is located at the first frequency range in a scheduling of resource unit, and another part symbol is located at the second frequency range,

The communication equipment carries out the mapping or demapping of DMRS using the DMRS pattern.

Optionally, it as one embodiment, is used to indicate in the instruction information there is no when the additional DMRS, it is described DMRS occupies in first frequency range one section of symbol in one section of symbol and second frequency range in DMRS pattern, wherein one section Symbol includes continuous at least one symbol.

Optionally, as one embodiment, one section of symbol in first frequency range includes first in first frequency range The first symbol in region, the first area include institute's data and the symbol that DMRS is occupied.

Optionally, as one embodiment, one section of symbol in second frequency range includes in second frequency range One symbol.

Optionally, it as one embodiment, is used to indicate in the instruction information there are when the additional DMRS, it is described DMRS occupies the symbol number of segment in first frequency range and position in DMRS pattern, and the sign field in the second frequency range occupied Several and position is identical as the number of segment of instruction information instruction described when non-frequency hopping and position.

Optionally, it as one embodiment, is used to indicate in the instruction information there are when the additional DMRS,

DMRS occupies discontinuous two sections of symbols and second frequency range in first frequency range in the DMRS pattern In discontinuous two sections of symbols,

Alternatively,

DMRS occupies discontinuous two sections of symbols and second frequency range in first frequency range in the DMRS pattern In one section of symbol,

Alternatively,

DMRS is occupied in the DMRS pattern does not connect in one section of symbol and second frequency range in first frequency range Two sections of continuous symbols,

Wherein, every section of symbol includes that continuously one symbol of instruction, one section of symbol include connecting in two sections of symbols Continuous at least one symbol.

Optionally, as one embodiment, DMRS occupies in the first frequency range discontinuous two sections in the DMRS pattern When symbol, latter section of symbol in two sections of symbols described in the first frequency range includes the last symbol in first frequency range；

Alternatively,

When DMRS occupies discontinuous two sections of symbols in the second frequency range in the DMRS pattern, two described in the second frequency range The last period symbol in section symbol includes first symbol in second frequency range.

Below with reference to specific column, a point situation, which describes to be configured in the embodiment of the present application according to additional DMRS, joins Number (the instruction information of i.e. additional DMRS) determines the specific example of frequency pattern.

Situation one:

Non- frequency hopping, frequency hopping use identical set of parameter.In other words it is not necessarily to new additional DMRS configuration parameter. Under frequency-hopping mode, additional DMRS configuration parameter value when regardless of non-frequency hopping, the pattern after frequency hopping is class Type 1.

Specifically, in the embodiment of the present application, can by signaling, for example, RRC, DCI, MAC CE one of which or Several to trigger frequency-hopping mode, terminal device can transmit after the signaling for getting above-mentioned triggering frequency-hopping mode according to Class1 DMRS and data.

It optionally, is format 0 (format 0) in signaling number, in resource distribution class by taking DCI triggers frequency-hopping mode as an example Type is 0 (Resource allocation type=0) and frequency hopping flag bit is 1 (Frequency hopping flag=1) When, corresponding pattern will use Class1.

It should be understood that in this case, in non-frequency hopping, additional DMRS configuration parameter just works.Namely It says, frequency-hopping mode is not activated, i.e., is format 0 (format 0) in signaling number, is not 0 in resource distribution type (type ≠ 0 Resource allocation) is not alternatively, have resource distribution type (no Resource allocation Type when) parameter or frequency hopping flag bit are 0 (Frequency hopping flag=0), additional DMRS configuration ginseng Number just works.

Situation two:

Non- frequency hopping, frequency hopping respectively correspond to the additional DMRS configuration parameter of oneself.In other words, when frequency-hopping mode Need individual a set of additional DMRS configuration parameter.

In other words, in this case, in non-frequency hopping, (can be claimed using a set of additional DMRS configuration parameter For first set configuration parameter), in frequency hopping, (second set is properly termed as using other set additional DMRS configuration parameter Configuration parameter).

It should be understood that the type and function of every set configuration parameter may refer to it is described above, in order to avoid repeat, herein It repeats no more.

Specifically, in the embodiment of the present application, can by signaling, for example, RRC, DCI, MAC CE one of which or Several to trigger frequency-hopping mode, terminal device can match after the signaling for getting above-mentioned triggering frequency-hopping mode according to second set Parameter is set to carry out data transmission.

It optionally, is format 0 (format 0) in signaling number, in resource distribution class by taking DCI triggers frequency-hopping mode as an example Type is 0 (Resource allocation type=0) and frequency hopping flag bit is 1 (Frequency hopping flag=1) When, corresponding second set of configuration parameter.

It should be understood that first set configuration parameter just works in non-frequency hopping.That is, frequency-hopping mode is not activated, Be format 0 (format 0) in signaling number, resource distribution type be not 0 (Resource allocation type ≠ 0) alternatively, not having resource distribution type (no Resource allocation type) parameter or frequency hopping flag bit is 0 When (Frequency hopping flag=0), first set configuration parameter just works.

It should be understood that second set of configuration parameter can only the corresponding pattern of indicative of frequency hopping mode be 2 kinds of patterns in situation two The corresponding pattern type of one of type, i.e. frequency-hopping mode is one of Class1 or type 2.

A point situation is illustrated below.Wherein, situation 2-1 is into situation 2-3, frame structure be unable to satisfy require when, When the mark space between two DMRS i.e. in a frequency range of frequency hopping is unsatisfactory for space requirement, in order to guarantee pattern type Uniformity, without frequency hopping.Situation 2-4 is unable to satisfy frame structure when requiring, i.e. frequency hopping a frequency into situation 2-6 It when the mark space between two DMRS in section is unsatisfactory for space requirement, retracts, by DMRS number drop in the frequency range To one, and then it ensure that the enabled of frequency hopping.

Situation 2-1,

The corresponding figure of second set of configuration parameter (for example, UL_DMRS_add_type_hopping=0) indicative of frequency hopping mode Sample is Class1, then in frequency hopping, terminal device according to the corresponding pattern of Class1 sends DMRS and data.

Alternatively,

The corresponding figure of second set of configuration parameter (for example, UL_DMRS_add_type_hopping=1) indicative of frequency hopping mode Sample is type 2-I, then in frequency hopping, terminal device according to the corresponding pattern of type 2-I sends DMRS and data.Wherein, if two When the mark space between two DMRS in any frequency range in frequency range is unsatisfactory for space requirement, then the frame structure is without jumping Frequently.The space requirement indicates whether the interval data between two DMRS is greater than or equal to preset interval threshold N_j, wherein N_j Can be with value for 1,2 or 3 etc., the embodiment of the present application is not limited to this.

Situation 2-2,

Alternatively,

The corresponding figure of second set of configuration parameter (for example, UL_DMRS_add_type_hopping=1) indicative of frequency hopping mode Sample is type 2-II, then in frequency hopping, terminal device according to the corresponding pattern of type 2-II sends DMRS and data.Wherein, if two When the mark space between two DMRS in the first frequency range in a frequency range is unsatisfactory for space requirement, then the frame structure without Frequency hopping.The space requirement indicates whether the interval data between two DMRS is greater than or equal to preset interval threshold N_j, wherein N_jCan be with value for 1,2 or 3 etc., the embodiment of the present application is not limited to this.

Situation 2-3,

Alternatively,

The corresponding figure of second set of configuration parameter (for example, UL_DMRS_add_type_hopping=1) indicative of frequency hopping mode Sample is type 2-III, then in frequency hopping, terminal device according to the corresponding pattern of type 2-III sends DMRS and data.Wherein, if When the mark space between two DMRS in the second frequency range in two frequency ranges is unsatisfactory for space requirement, then the frame structure not into Row frequency hopping.The space requirement indicates whether the interval data between two DMRS is greater than or equal to preset interval threshold N_j, In, N_jCan be with value for 1,2 or 3 etc., the embodiment of the present application is not limited to this.

It should be understood that above-mentioned ask 2-1 to assume that the network equipment and terminal device have prestored two kinds of pattern type (i.e. classes into 2-3 One in type 1 and 3 types 2) the case where, wherein in UL_DMRS_add_type_hopping=0, corresponding pattern class Type 1, in UL_DMRS_add_type_hopping=1, another pattern in two kinds of pattern types that correspondence prestores, i.e., 3 The corresponding pattern of one of type 2 type.Optionally, the network equipment and terminal device can prestore above-mentioned four kinds of pattern types In three kinds or four kinds, for prestoring four kinds, in UL_DMRS_add_type_hopping=0, corresponding pattern Class1；? UL_DMRS_add_type_hopping=1, corresponding pattern type 2-I；It is right in UL_DMRS_add_type_hopping=2 Answer pattern type 2-II；In UL_DMRS_add_type_hopping=3, corresponding pattern type 2-III.

Situation 2-4,

Alternatively,

The corresponding figure of second set of configuration parameter (for example, UL_DMRS_add_type_hopping=1) indicative of frequency hopping mode Sample is type 2-I, and two frequency ranges are all satisfied DMRS space requirement, then in frequency hopping, terminal device is corresponding according to type 2-I Pattern sends DMRS and data.

Alternatively, second set of configuration parameter (for example, UL_DMRS_add_type_hopping=1) indicative of frequency hopping mode is corresponding Pattern be type 2-I, and previous frequency range meets DMRS space requirement, and the latter frequency range is unsatisfactory for DMRS space requirement, then In frequency hopping, terminal device sends DMRS and data according to the corresponding pattern of type 2-II.

Alternatively, second set of configuration parameter (for example, UL_DMRS_add_type_hopping=1) indicative of frequency hopping mode is corresponding Pattern be type 2-I, and previous frequency range is unsatisfactory for DMRS space requirement, and the latter frequency range meets DMRS space requirement, then In frequency hopping, terminal device sends DMRS and data according to the corresponding pattern of type 2-III.

Situation 2-5,

Alternatively,

The corresponding figure of second set of configuration parameter (for example, UL_DMRS_add_type_hopping=1) indicative of frequency hopping mode Sample is type 2-II, and previous frequency range meets DMRS space requirement, then in frequency hopping, terminal device is corresponding according to type 2-II Pattern send DMRS and data.

Alternatively, second set of configuration parameter (for example, UL_DMRS_add_type_hopping=1) indicative of frequency hopping mode is corresponding Pattern be type 2-II, and previous frequency range is unsatisfactory for DMRS space requirement, then in frequency hopping terminal device according to Class1 pair The pattern answered sends DMRS and data.

Situation 2-6,

Alternatively,

The corresponding figure of second set of configuration parameter (for example, UL_DMRS_add_type_hopping=1) indicative of frequency hopping mode Sample is type 2-III, and the latter frequency range meets DMRS space requirement, then in frequency hopping terminal device according to 2-III pairs of type The pattern answered sends DMRS and data.

Alternatively, second set of configuration parameter (for example, UL_DMRS_add_type_hopping=1) indicative of frequency hopping mode is corresponding Pattern be type 2-II, and the latter frequency range is unsatisfactory for DMRS space requirement, then in frequency hopping terminal device according to Class1 pair The pattern answered sends DMRS and data.

Situation three:

Frequency-hopping mode is multiplexed the additional DMRS configuration parameter of non-frequency hopping, and the meaning of parameter is identical.

Specifically, in the case where additional DMRS configuration parameter is configured with additional DMRS, also It is to say in the case where including two sections of DMRS, terminal device when sending data, just can be with frequency hopping, and the position of the DMRS after frequency hopping It sets identical as the position of DMRS of the additional DMRS configuration parameter of non-frequency hopping configuration.

It optionally, is format 0 (format 0) in signaling number, in resource distribution class by taking DCI triggers frequency-hopping mode as an example Type is 0 (Resource allocation type=0) and frequency hopping flag bit is 1 (Frequency hopping flag=1) When, and additional DMRS is configured, that is, on the basis of including at least two DMRS, for example, such as UL_DMRS_add_ Num=N (N > 0), alternatively, when { N1 or N1+N2 or N1+N2+N3 } (N1 > 0, N2 > 0, N3 > 0) UL_DMRS_add_pos=, eventually End equipment uses frequency-hopping mode when sending upstream data.

Specifically, the corresponding DMRS pattern of frequency-hopping mode is determined by additional DMRS configuration parameter.That is it jumps The number of DMRS and position and additional DMRS configuration parameter configuration when non-frequency hopping in the corresponding DMRS pattern of frequency mode The number of DMRS is identical with position.

Optionally, in situation three, do not configure additional DMRS's in additional DMRS configuration parameter In the case of, the additional DMRS configuration parameter of non-frequency hopping can be multiplexed in the embodiment of the present application, for example, changing The value of additional DMRS configuration parameter, to configure additional DMRS, later, after change Additional DMRS configuration parameter carries out frequency hopping, specifically, after the corresponding DMRS pattern of frequency-hopping mode is by changing Additional DMRS configuration parameter determines.That is the number of DMRS and position in the corresponding DMRS pattern of frequency-hopping mode It is identical as the number for the DMRS that the additional DMRS configuration parameter after changing when non-frequency hopping configures and position.

That is in the case where including two DMRS, terminal device when sending data, just can be with frequency hopping, and frequency hopping The position of DMRS afterwards is identical as the position of DMRS that the additional DMRS configuration parameter of non-frequency hopping configures.

Situation four:

Frequency-hopping mode is multiplexed the additional DMRS configuration parameter of non-frequency hopping, but parameter meaning is different.

Specifically, being format 0 (format 0) in signaling number, in resource distribution so that DCI triggers frequency-hopping mode as an example Type is 0 (Resource allocation type=0) and frequency hopping flag bit is 1 (Frequency hopping flag= 1) when, if additional DMRS configuration parameter is configured with additional DMRS, that is to say, that including two DMRS In the case where, then frequency-hopping mode uses type 2, for example, type 2-I, type 2-II or type 2-III.If Additional DMRS configuration parameter is not configured with additional DMRS, that is to say, that is including the case where a DMRS Under, then frequency-hopping mode uses Class1.

It should be understood that at 4 kinds of situation, if additional DMRS configuration parameter is configured with additional DMRS, That is then frequency-hopping mode is using one in type 2-I, type 2-II and type 2-III in the case where including two DMRS Kind.

A point situation is illustrated below.Wherein, situation 4-1 is into situation 4-3, frame structure be unable to satisfy require when, When the mark space between two DMRS i.e. in a frequency range of frequency hopping is unsatisfactory for space requirement, in order to guarantee pattern type Uniformity, without frequency hopping.Situation 4-4 is unable to satisfy frame structure when requiring, i.e. frequency hopping a frequency into situation 4-6 When the mark space between two DMRS in section is unsatisfactory for space requirement, DMRS number in the frequency range is down to one, into And it ensure that the enabled of frequency hopping.

Situation 4-1,

Additional DMRS configuration parameter does not configure additional DMRS, that is to say, that is including a DMRS When, after frequency hopping, corresponding pattern is Class1.

Alternatively,

Additional DMRS configuration parameter is configured with additional DMRS, that is to say, that is including at least two When DMRS, after frequency hopping, corresponding pattern is type 2-I.Wherein, if two DMRS in any frequency range in two frequency ranges it Between mark space when being unsatisfactory for space requirement, then the frame structure is without frequency hopping.The space requirement indicates between two DMRS Interval data whether be greater than or equal to preset interval threshold N_j, wherein N_jCan be with value for 1,2 or 3 etc., the application is implemented Example is not limited to this.

Situation 4-2,

Alternatively,

Additional DMRS configuration parameter is configured with additional DMRS, that is to say, that is including at least two When DMRS, after frequency hopping, corresponding pattern is type 2-II.Wherein, if two DMRS in previous frequency range in two frequency ranges Between mark space when being unsatisfactory for space requirement, then the frame structure is without frequency hopping.

Situation 4-3,

Alternatively,

Additional DMRS configuration parameter is configured with additional DMRS, that is to say, that is including at least two When DMRS, after frequency hopping, corresponding pattern is type 2-III.Wherein, if two DMRS in the second frequency range in two frequency ranges Between mark space when being unsatisfactory for space requirement, then the frame structure is without frequency hopping.

Situation 4-4,

Alternatively,

Additional DMRS configuration parameter is configured with additional DMRS, that is to say, that is including at least two When DMRS, and two frequency ranges are all satisfied DMRS space requirement, then in frequency hopping, terminal device is sent out according to the corresponding pattern of type 2-I Send DMRS and data.

Alternatively, additional DMRS configuration parameter is configured with additional DMRS, that is to say, that including at least When two DMRS, and previous frequency range meets DMRS space requirement, and the latter frequency range is unsatisfactory for DMRS space requirement, then in frequency hopping When terminal device according to the corresponding pattern of type 2-II send DMRS and data.

Alternatively, additional DMRS configuration parameter is configured with additional DMRS, that is to say, that including at least When two DMRS, and previous frequency range is unsatisfactory for DMRS space requirement, and the latter frequency range meets DMRS space requirement, then in frequency hopping When terminal device according to the corresponding pattern of type 2-III send DMRS and data.

Situation 4-5,

Alternatively,

Additional DMRS configuration parameter is configured with additional DMRS, that is to say, that is including at least two When DMRS, and previous frequency range meets DMRS space requirement, then in frequency hopping terminal device according to the corresponding pattern of type 2-II Send DMRS and data.

Alternatively, additional DMRS configuration parameter is configured with additional DMRS, that is to say, that including at least When two DMRS, and previous frequency range is unsatisfactory for DMRS space requirement, then in frequency hopping terminal device according to the corresponding figure of Class1 Sample sends DMRS and data.

Situation 4-6,

Alternatively,

Additional DMRS configuration parameter is configured with additional DMRS, that is to say, that is including at least two When DMRS, and the latter frequency range meets DMRS space requirement, then in frequency hopping terminal device according to the corresponding pattern of type 2-III Send DMRS and data.

Alternatively, additional DMRS configuration parameter is configured with additional DMRS, that is to say, that including at least When two DMRS, and the latter frequency range is unsatisfactory for DMRS space requirement, then in frequency hopping terminal device according to the corresponding figure of Class1 Sample sends DMRS and data.

Optionally, in situation four, additional DMRS is not configured in additional DMRS configuration parameter, then Frequency hopping is carried out according to the corresponding pattern of Class1,

Additional DMRS is configured in additional DMRS configuration parameter, then determines that DMRS schemes according to configuration parameter Sample, specifically, the corresponding DMRS pattern of frequency-hopping mode are determined by additional DMRS configuration parameter.That is frequency hopping mould The DMRS of the number of DMRS and position and additional DMRS configuration parameter configuration when non-frequency hopping in the corresponding DMRS pattern of formula Number it is identical with position.

It should be understood that above situation one after one of type type, can make in determination is using above-mentioned 4 into situation 4 Any one pattern in a variety of patterns is corresponded to above-described the type, the embodiment of the present application limits not to this.Wherein, The corresponding pattern of each class may refer to described above, and details are not described herein again.

Equipment using single carrier DFT-s-OFDM waveform and the equipment multi-user using multicarrier CP-OFDM are described below When MU, 2 kinds of waveform devices correspond to the multiplexing relationship of DMRS.

CP-OFDM and DFT-s-OFDM, which is corresponded to, can use frequency division multiplexing (Frequency division between DMRS Multiplexing, FDM) or time division multiplexing (Time division mulriplexing, TDM) mode, the following Figure 36 of TDM Shown, FDM is as shown in figure 37.In namely NR in some scenarios, support that 2 kinds of waveforms are multiplexed by FDM；Certain scenes Under, support that 2 kinds of waveforms are multiplexed by TDM.

Wherein, independent numbering, multicarrier use end between CP-OFDM and DFT-s-OFDM in (1) and (2) in Figure 36 Mouth 1-12, multicarrier use port 13-16.

Combine number, common port 1-12 between CP-OFDM and DFT-s-OFDM in (3) in Figure 36.

In (1) and (2) in Figure 37, number, common port 1-12 are combined between CP-OFDM and DFT-s-OFDM.

In (3) in Figure 37, independent numbering between CP-OFDM and DFT-s-OFDM, multicarrier uses port 1-12, single Carrier wave uses port 13-16.

CP-OFDM and DFT-s-OFDM is corresponded to and can be still time-multiplexed using frequency division multiplexing between DMRS, can be used Following 2 kinds of modes are realized.

Method 1: when CP-OFDM port number is less than or equal to N (such as N=2/4/6), the DMRS between 2 kinds of waveforms is used FDM, character position where DFT-s-OFDM DMRS is identical as CP-OFDM at this time；When CP-OFDM port number is more than or equal to N When, the DMRS TDM between 2 kinds of waveforms.Character position where the DMRS of DFT-s-OFDM, can there is following 4 kinds of forms:

OFDM symbol where single carrier is after multicarrier, and close to multicarrier (as shown in Figure 1)；

OFDM symbol where single carrier is before multicarrier, and close to multicarrier；

OFDM symbol where single carrier is separated by N number of symbol after multicarrier, and with multicarrier (N is more than or equal to 1)；

OFDM symbol where single carrier is separated by N number of symbol before multicarrier, and with multicarrier (N is more than or equal to 1).

Method 2: by character position where signal deployment/instruction DFT-s-OFDM DMRS, imply with CP-OFDM's Multiplex mode between DMRS.

The wherein position single carrier DMRS is divided into 3 kinds of situations:

(1) character position where the DMRS of DFT-S-OFDM is directly referred to by signaling instruction (such as RRC, MAC CE, DCI) Show character position；When indicating positions is identical as the DMRS of CP-OFDM, the DMRS between 2 kinds of waveforms uses FDM；When position not When identical, the DMRS between 2 kinds of waveforms uses TDM.

(2) character position where the DMRS of DFT-S-OFDM, is implied by signaling instruction (such as RRC, MAC CE, DCI) DMRS character position, such as " 0 " indicate that the place the DMRS character position of DFT-S-OFDM is identical as the position CP-OFDM, between 2 Using FDM；Character position is close to the position DMRS of CP-OFDM where " 1 " indicates the DMRS of DFT-S-OFDM, and at it Afterwards；

(3) character position where the DMRS of DFT-S-OFDM, is implied, such as the DMRS port of DFT-S-OFDM by port numbers Number be 1-12, indicate that the DMRS character position of DMRS and CP-OFDM of DFT-S-OFDM is identical, between 2 use FDM；When The DMRS port number of DFT-S-OFDM is 13-16, indicates and CP-OFDM is close to and behind.

It is described below when present mode is aggregation scheme, the embodiment of the present application of corresponding above situation one and situation two The situation of the pattern of the corresponding DMRS of present mode.

Optionally, as one embodiment, when present mode is aggregation scheme, which corresponds to Y resource tune Unit aggregation transfer is spent, Y is the integer more than or equal to 2；For above situation one, in the embodiment of the present application, as shown in figure 14, DMRS occupies preceding Y in Y scheduling of resource unit in the corresponding DMRS pattern of the present mode₁Each in a scheduling of resource unit Continuous at least one symbol, Y in scheduling of resource list₁For the integer more than or equal to 1 and less than Y.Figure 12 shows Y=3, Y₁ =1 situation.

Figure 15 is shown in existing way, in aggregation scheme, still according to the location transmission preset in pattern shown in Fig. 5 DMRS, as seen from Figure 15, DMRS occupies each scheduling of resource in Y scheduling of resource unit in the preset DMRS pattern Continuous at least one symbol in unit,

Since under the scene of situation one, channel status is more stable, and since Y scheduling of resource unit associations pass Defeated, the channel status of the Y scheduling of resource unit is similar, thus, it is only required to which to transmit a small amount of DMRS can be realized the solution of data It adjusts.Since transmission has DMRS in each scheduling of resource unit in Figure 15, it will cause the wastes of resource.

And in the embodiment of the present application, in aggregation scheme, DMRS has only taken up the preceding Y in Y of aggregation transfer₁A resource Symbol in scheduling unit reduces the resource of DMRS occupancy, avoids the wasting of resources, promotes network performance.

Optionally, as one embodiment, when present mode is aggregation scheme, which corresponds to Y resource tune Unit aggregation transfer is spent, Y is the integer more than or equal to 2.For above situation two, in the embodiment of the present application, as shown in figure 16, DMRS occupies the L in Y scheduling of resource unit in each scheduling of resource unit in the corresponding DMRS pattern of the present mode₁Group Symbol, L₁For the integer less than L, wherein the L₁Group code is non-conterminous, the L₁Each group code includes continuous in group code At least one symbol wherein shows L in Figure 16₁=1, and a group code includes the situation of a symbol.

Figure 17 shows in existing way, in aggregation scheme, still according to the location transmission preset shown in Fig. 6 in pattern DMRS, as seen from Figure 17, DMRS occupies each scheduling of resource in Y scheduling of resource unit in the preset DMRS pattern L group code in unit, L are the integer more than or equal to 2, wherein the L group code is non-conterminous, each group of symbol in the L group code Number include continuous at least one symbol.

As seen from Figure 17, in aggregation scheme, the middle DMRS of each scheduling of resource unit occupies L group code Situation, however, in aggregation scheme, multiple scheduling of resource unit associations transmission, therefore, multiple scheduling of resource of the joint transmission The channel of unit has certain incidence relation, therefore the accurate demodulation of data can be realized by less DMRS.So And since transmission has L group DMRS in each scheduling of resource unit in Figure 17, cause the waste of resource.

And in the embodiment of the present application, in aggregation scheme, DMRS has been only taken up in Y scheduling of resource unit of aggregation transfer L in each scheduling of resource unit₁Group code reduces the resource of DMRS occupancy, avoids the wasting of resources, promotes internetworking Energy.

It should be understood that describing the example that L is 2 in Figure 16, but the embodiment of the present application is not limited to this, each scheduling of resource DMRS can occupy multiple groups symbol in unit, for example, occupying 3 groups, 4 groups or more etc..Similar, it is only shown in Figure 16 L₁=1 situation, but the embodiment of the present application is not limited to this, as long as L₁Less than L.

It should be noted that, in frequency-hopping mode, scheming still according to being preset shown in Fig. 6 Figure 17 shows in existing way Location transmission DMRS in sample, as seen from Figure 17, DMRS is unevenly distributed in the resource entirely polymerizeing, due to receiving end It needs to demodulate data later using DMRS, since the spacing between adjacent DMRS symbol is uneven, adjacent When two groups of DMRS character spacings are larger, after receiving end receives the DMRS of previous transmissions, need to the data after the DMRS Demodulated, since the spacing is larger, in fact it could happen that channel status fluctuation it is larger, it may appear that data demodulation it is not accurate enough can Can, similar, when adjacent two groups of DMRS character spacings are smaller, possible channel status is more stable, receiving device compared with One group of DMRS is received again after short mark space, is resulted in waste of resources.

Alternatively, in the embodiment of the present application, as shown in figure 18, DMRS is occupied in the corresponding DMRS pattern of the present mode L group code in Y scheduling of resource unit in each scheduling of resource unit, DMRS in the corresponding DMRS pattern of the present mode The maximum difference of the spacing of two group codes of arbitrary neighborhood is S symbol, S < R in the Y*L group code of occupancy, wherein this is default DMRS pattern in DMRS occupy Y*L group code in arbitrary neighborhood two group codes spacing maximum difference be R symbol. For example, as shown in figure 17, the spacing maximum of two connected group codes is 8 symbols, the spacing of two connected group codes is minimum Value is 4 symbols, so the R=8-4=4, as shown in figure 18, the spacing maximum of two connected group codes are 6 symbols, phase The spacing minimum value of two group codes even is 6 symbols, S=6-6=0.

It should be noted that the example of above-described embodiment is used for the purpose of helping skilled in the art to understand the embodiment of the present application, And specific value or concrete scene illustrated by the embodiment of the present application have to being limited to.Those skilled in the art provide according to above-mentioned Example, it is clear that the modification or variation of various equivalences can be carried out, such modification or variation also fall into the embodiment of the present application In range.

The method for being used for transmission DMRS according to the embodiment of the present application is described in detail above in conjunction with Fig. 1 to Figure 18, under The communication equipment of the embodiment of the present application will be described in detail in conjunction with Figure 19 in face.

Figure 19 shows the schematic block diagram of the communication equipment 1900 according to the embodiment of the present application, which can be The network equipment or terminal device.Specifically, as shown in figure 19, which includes: processor 1910 and transceiver 1920。

The processor is used to determine that the present mode of scheduling of resource unit, the present mode to include frequency-hopping mode or polymerization mould Formula, the frequency-hopping mode indicate that a part of symbol is located at the first frequency range in a scheduling of resource unit, and another part symbol is positioned at the Two frequency ranges, the aggregation scheme indicate multiple scheduling of resource unit aggregation transfers；

The transceiver is used to carry out the mapping or demapping of DMRS using DMRS pattern corresponding with the present mode, In, the symbol of DMRS occupancy in the character position and preset DMRS pattern that DMRS is occupied in the corresponding DMRS pattern of the present mode Number position difference.

Therefore, the pattern of the DMRS in the embodiment of the present application under present mode is different from preset pattern, and the application is implemented Example can be according to different modes, the character position for neatly DMRS being selected to occupy, and then the embodiment of the present application can satisfy not With the requirement of mode, network performance is promoted.

Optionally, as another embodiment, which is frequency-hopping mode,

Continuous N number of symbol, N are in a scheduling of resource unit of the non-frequency hopping of DMRS occupancy in the preset DMRS pattern Integer more than or equal to 1；

DMRS occupies continuous N in first frequency range in the corresponding DMRS pattern of the present mode₁A symbol and this Continuous N in two frequency ranges₂A symbol, N₁For the integer more than or equal to 1, N₂For the integer more than or equal to 1.

Optionally, as another embodiment, the N₁=N₂, and the N in first frequency range₁The position of a symbol and this second The N in frequency range₂The positional symmetry of a symbol.

Optionally, as another embodiment, which includes first symbol in second frequency range.

Optionally, as another embodiment, which is resource frequency-hopping mode,

DMRS occupies continuous M symbol and company in a scheduling of resource unit of non-frequency hopping in the preset DMRS pattern K continuous symbol, wherein K symbol of the M symbol and this is non-conterminous；

DMRS occupies continuous M in the symbol of first frequency range in the corresponding DMRS pattern of the present mode₁A symbol and Continuous K₁Continuous M in a symbol and second frequency range₂A symbol and continuous K₂A symbol, wherein the M₁A symbol With the K₁A symbol is non-conterminous, the M₂A symbol and the K₂A symbol is non-conterminous, M, K, M₁、K₁、M₂、K₂For more than or equal to 1 Integer.

Optionally, as another embodiment, M₁=M₂, K₁=K₂, and the M in first frequency range₁A symbol and the K₁It is a The M in the position of symbol and second frequency range₂A symbol and the K₂The positional symmetry of a symbol.

Optionally, as another embodiment, DMRS also takes up a resource of the non-frequency hopping in the preset DMRS pattern Continuous P symbol, M symbol of the P symbol and this and the K symbol are non-conterminous in scheduling unit；

DMRS also takes up continuous P1 symbol in the symbol of first frequency range in the corresponding DMRS pattern of the present mode, And continuous P2 symbol in second frequency range, wherein the P₁A symbol and the M₁A symbol and the K₁A symbol not phase Neighbour, the P₂A symbol and the M₂A symbol and the K₂A symbol is non-conterminous, P, P₁、P₂For the integer more than or equal to 1.

Optionally, as another embodiment, which is aggregation scheme, and multiple scheduling of resource unit is Y, Y For the integer more than or equal to 2；

DMRS occupies preceding Y in Y scheduling of resource unit in the corresponding DMRS pattern of the present mode₁A scheduling of resource unit In continuous at least one symbol in each scheduling of resource list, Y₁For the integer more than or equal to 1 and less than Y.

Optionally, as another embodiment, which is aggregation scheme, and multiple scheduling of resource unit is Y,

L group accords in each scheduling of resource unit in Y scheduling of resource unit of DMRS occupancy in the preset DMRS pattern Number, L is the integer more than or equal to 2, wherein the L group code is non-conterminous, and each group code includes continuous in the L group code At least one symbol；

DMRS occupies each scheduling of resource unit in Y scheduling of resource unit in the corresponding DMRS pattern of the present mode In L₁Group code, L₁For the integer less than L, wherein the L₁Group code is non-conterminous, the L₁Each group code packet in group code Include continuous at least one symbol.

L group accords in each scheduling of resource unit in Y scheduling of resource unit of DMRS occupancy in the preset DMRS pattern Number, DMRS occupies the L in Y scheduling of resource unit in each scheduling of resource unit in the corresponding DMRS pattern of the present mode Group code, wherein L is the integer more than or equal to 2, wherein the L group code is non-conterminous, each group code in the L group code Including continuous at least one symbol,

The maximum of the spacing of two group codes of arbitrary neighborhood in the Y*L group code that DMRS is occupied in the preset DMRS pattern Difference is R symbol, two groups of symbols of arbitrary neighborhood in the Y*L group code that DMRS is occupied in the corresponding DMRS pattern of the present mode Number spacing maximum difference be S symbol, S < R.

Optionally, as another embodiment, which is the network equipment, which is also used to send out to terminal device The first instruction information is sent, which determines the present mode of scheduling of resource unit for terminal device.

Optionally, as another embodiment, which is the network equipment, which is also used to send out to terminal device Second indication information is sent, which is used to indicate the corresponding DMRS pattern of the present mode.

Optionally, as another embodiment, which is terminal device, which is also used to receive the network equipment The the first instruction information sent, the first instruction information determine the present mode of scheduling of resource unit for terminal device；

Wherein, which is specifically used for determining the present mode according to the first instruction information.

Optionally, as another embodiment, which is terminal device, which is also used to receive the network equipment Second indication information is sent, which is used to indicate the corresponding DMRS pattern of the present mode.

It is set it should be understood that communication equipment 1900 shown in Figure 19 can be realized network involved in Fig. 1 to Figure 18 embodiment of the method Standby or terminal device each process.The operation and/or function of modules in communication equipment 1900, respectively in order to realize on State the corresponding process in embodiment of the method.For details, reference can be made to the descriptions in above method embodiment, to avoid repeating, herein suitably It omits and description is described in detail.

It should be understood that the embodiment of the present application in processor 1910 can through the processing unit or chip realize, optionally, receive Hair device 1920 can be made of transmitter or receiver, or be made of Transmit-Receive Unit, and the embodiment of the present application is not limited to this.

It should be noted that the processor (for example, processor 1910 in Figure 19) in the embodiment of the present application can be a kind of integrate Circuit chip, the processing capacity with signal.During realization, each step of above method embodiment can pass through processor In hardware integrated logic circuit or software form instruction complete.Above-mentioned processor can be general processor, number Word signal processor (digital signal processor, DSP), specific integrated circuit (application specific Integrated circuit, ASIC), ready-made programmable gate array (field programmable gate array, FPGA) Either other programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute Disclosed each method, step and logic diagram in the embodiment of the present application.General processor can be microprocessor or this at Reason device is also possible to any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present application, can directly embody Execute completion for hardware decoding processor, or in decoding processor hardware and software module combination execute completion.Software Module can be located at random access memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable storage In the storage medium of this fields such as device, register maturation.The storage medium is located at memory, and processor reads the letter in memory Breath, in conjunction with the step of its hardware completion above method.

It is appreciated that the memory (for example, memory 1930 in Figure 19) in the embodiment of the present application can be volatibility Memory or nonvolatile memory, or may include both volatile and non-volatile memories.Wherein, nonvolatile memory Can be read-only memory (read-only memory, ROM), programmable read only memory (programmable ROM, PROM), Erasable Programmable Read Only Memory EPROM (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM) or flash memory.Volatile memory can be random access memory (random Access memory, RAM), it is used as External Cache.By exemplary but be not restricted explanation, many forms RAM is available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (synchronous DRAM, SDRAM), Double Data Rate synchronous dynamic Random access memory (double data rate SDRAM, DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (enhanced SDRAM, ESDRAM), synchronized links dynamic random access memory (synchlink DRAM, SLDRAM) and straight Meet rambus random access memory (direct rambus RAM, DR RAM).It should be noted that system described herein and side The memory of method is intended to include but is not limited to the memory of these and any other suitable type.

The embodiment of the present application also provides a kind of computer-readable mediums, are stored thereon with computer program, the computer The method for being used for transmission DMRS in any of the above-described embodiment of the method is realized when program is computer-executed.

The embodiment of the present application also provides a kind of computer program products, when which is computer-executed Realize the method for being used for transmission DMRS in any of the above-described embodiment of the method.

In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program Product includes one or more computer instructions.It is all or part of when loading on computers and executing the computer instruction Ground is generated according to process or function described in the embodiment of the present application.The computer can be general purpose computer, special purpose computer, Computer network or other programmable devices.The computer instruction may be stored in a computer readable storage medium, or Person is transmitted from a computer readable storage medium to another computer readable storage medium, for example, the computer instruction Wired (such as coaxial cable, optical fiber, digital subscriber can be passed through from a web-site, computer, server or data center Line (digital subscriber line, DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another website Website, computer, server or data center are transmitted.The computer readable storage medium can be computer and can deposit Any usable medium taken either includes that the data storages such as one or more usable mediums integrated server, data center are set It is standby.The usable medium can be magnetic medium (for example, floppy disk, hard disk, tape), optical medium (for example, high-density digital video CD (digital video disc, DVD)) or semiconductor medium (for example, solid state hard disk (solid state disk, SSD)) etc..

The embodiment of the present application also provides a kind of processing units, including processor and interface；The processor, for executing The method for being used for transmission DMRS in any of the above-described embodiment of the method.

It should be understood that above-mentioned processing unit can be a chip, the processor can be realized by hardware can also be with It is realized by software, when passing through hardware realization, which can be logic circuit, integrated circuit etc.；When passing through software Come when realizing, which can be a general processor, is realized, changed by reading the software code stored in memory Memory can integrate in the processor, can be located at except the processor, be individually present.

It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment A particular feature, structure, or characteristic includes at least one embodiment of the application.Therefore, occur everywhere in the whole instruction " in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific features, knot Structure or characteristic can combine in any suitable manner in one or more embodiments.It should be understood that in the various implementations of the application In example, magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, the execution sequence Ying Yiqi function of each process It can be determined with internal logic, the implementation process without coping with the embodiment of the present application constitutes any restriction.

In addition, the terms " system " and " network " are often used interchangeably herein.The terms " and/ Or ", only a kind of incidence relation for describing affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, it can be with table Show: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, character "/" herein, typicallys represent front and back Affiliated partner is a kind of relationship of "or".

It should be understood that in the embodiment of the present application, " B corresponding with A " indicates that B is associated with A, B can be determined according to A.But It should also be understood that determining that B is not meant to determine B only according to A according to A, B can also be determined according to A and/or other information.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware With the interchangeability of software, each exemplary composition and step are generally described according to function in the above description.This A little functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Specially Industry technical staff can use different methods to achieve the described function each specific application, but this realization is not It is considered as beyond scope of the present application.

It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit, Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be with In conjunction with or be desirably integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit or logical Letter connection is also possible to electricity, mechanical or other form connections.

Unit may or may not be physically separated as illustrated by the separation member, shown as a unit Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks On unit.It can select some or all of unit therein according to the actual needs to realize the mesh of the embodiment of the present application scheme 's.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, is also possible to two or more units and is integrated in one unit.It is above-mentioned integrated Unit both can take the form of hardware realization, can also realize in the form of software functional units.

Through the above description of the embodiments, it is apparent to those skilled in the art that the application can be with It is realized with hardware realization or firmware realization or their combination mode.It when implemented in software, can be by above-mentioned function Storage in computer-readable medium or as on computer-readable medium one or more instructions or code transmitted.Meter Calculation machine readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another Any medium of a place transmission computer program.Storage medium can be any usable medium that computer can access.With For this but be not limited to: computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk Storage medium or other magnetic storage apparatus or can be used in carry or store have instruction or data structure form expectation Program code and can be by any other medium of computer access.Furthermore.Any connection appropriate can become computer Readable medium.For example, if software is using coaxial cable, optical fiber cable, twisted pair, Digital Subscriber Line (DSL) or such as The wireless technology of infrared ray, radio and microwave etc is transmitted from website, server or other remote sources, then coaxial electrical The wireless technology of cable, optical fiber cable, twisted pair, DSL or such as infrared ray, wireless and microwave etc includes in affiliated medium In fixing.As used in this application, disk (Disk) and dish (disc) are logical including compression optical disc (CD), laser disc, optical disc, number With optical disc (DVD), floppy disk and Blu-ray Disc, the usually magnetic replicate data of which disk, and dish is then with laser come optical duplication Data.Combination above should also be as including within the protection scope of computer-readable medium.

In short, being not intended to limit the application's the foregoing is merely the preferred embodiment of technical scheme Protection scope.Within the spirit and principles of this application, any modification, equivalent replacement, improvement and so on should be included in Within the protection scope of the application.

Claims

1. a kind of method for being used for transmission demodulated reference signal DMRS characterized by comprising

The network equipment determines the corresponding DMRS pattern of frequency-hopping mode；The frequency-hopping mode indicates in a scheduling of resource unit one Symbol is divided to be located at the first frequency range, another part symbol is located at the second frequency range；

The network equipment carries out the mapping of DMRS using the DMRS pattern；

The network equipment sends additional DMRS configuration parameter corresponding with the DMRS pattern to terminal device；The DMRS matches It sets parameter and is used to indicate at least one of the following: with the presence or absence of the additional DMRS, the number of the additional DMRS and described The position of additional DMRS, the additional DMRS indicate to be located at other section of DMRS after preceding load DMRS.

2. the method as described in claim 1, which is characterized in that the network equipment under frequency-hopping mode and non-frequency-hopping mode, Using same additional DMRS configuration parameter, the number of segment of DMRS is different in the DMRS pattern determined.

3. the method as described in claim 1, which is characterized in that

It is not configured additional DMRS in the additional DMRS configuration parameter, in the corresponding DMRS pattern of the frequency-hopping mode, described There was only one section of DMRS in one frequency range and the second frequency range.

4. the method as described in claim 1, which is characterized in that be configured with additional DMRS in the additional DMRS configuration parameter When, in the corresponding DMRS pattern of the frequency-hopping mode, first frequency range and the second frequency range respectively have one section or two sections of DMRS.

5. method as claimed in claim 4, which is characterized in that first frequency range or the second frequency range is unsatisfactory between DMRS When demand, first frequency range or the second frequency range only include one section of DMRS.

6. method as claimed in claim 3 or 5, which is characterized in that one section of DMRS of second frequency range is located at described second First symbol of frequency range.

7. method as claimed in claim 4, which is characterized in that first frequency range or the second frequency range meets the interval DMRS When demand, first frequency range or the second frequency range include two sections of DMRS.

8. the method for claim 7, which is characterized in that meet in the first frequency range or the second frequency range of DMRS space requirements Second segment DMRS be located at the 4th symbol after first segment DMRS.

9. method as claimed in claim 7 or 8, which is characterized in that the first segment DMRS of second frequency range is located at the second frequency First symbol of section.

10. the method as described in claim 1, which is characterized in that be configured with additional DMRS in the additional DMRS configuration parameter When, when first frequency range or the second frequency range are unsatisfactory for DMRS space requirements, the network equipment determines not frequency hopping；Or

When first frequency range and the second frequency range meet DMRS space requirements, first frequency range and the second frequency range respectively include two sections DMRS。

11. the method as described in any one of claim 5,7,8 or 10, which is characterized in that the DMRS space requirements are frequencies There are three symbols between two sections of DMRS of section.

12. a kind of network equipment, which is characterized in that including processing unit and Transmit-Receive Unit:

Processing unit, for determining that the corresponding demodulated reference signal DMRS pattern of frequency-hopping mode, the frequency-hopping mode indicate one A part of symbol is located at the first frequency range in scheduling of resource unit, and another part symbol is located at the second frequency range；

The processing unit is also used for the mapping that the DMRS pattern carries out DMRS；

Transmission unit, for sending additional DMRS configuration parameter corresponding with the DMRS pattern to terminal device；It is described additional DMRS configuration parameter is used to indicate at least one of the following: with the presence or absence of the number of the additional DMRS, the additional DMRS With the position of the additional DMRS；The additional DMRS indicates to be located at other section of DMRS after preceding load DMRS.

13. the network equipment as claimed in claim 12, which is characterized in that the processing unit is in frequency-hopping mode and non-frequency hopping mould Under formula, using same additional DMRS configuration parameter, the number of segment of DMRS is different in the DMRS pattern determined.

14. the network equipment as claimed in claim 12, which is characterized in that

Additional DMRS is not configured in the additional DMRS configuration parameter, the frequency-hopping mode that the processing unit is determined is corresponding In DMRS pattern, there was only one section of DMRS in first frequency range and the second frequency range.

15. the network equipment as claimed in claim 12, which is characterized in that be configured in the additional DMRS configuration parameter additional When DMRS, in the corresponding DMRS pattern of the frequency-hopping mode that the processing unit is determined, first frequency range and the second frequency range are each There is one section or two sections of DMRS.

16. the network equipment as claimed in claim 15, which is characterized in that first frequency range or the second frequency range is unsatisfactory for When DMRS space requirements, first frequency range or the second frequency range only include one section of DMRS.

17. the network equipment as described in claim 14 or 16, which is characterized in that one section of DMRS of second frequency range is located at institute State first symbol of the second frequency range.

18. the network equipment as claimed in claim 15, which is characterized in that first frequency range or the second frequency range meet When DMRS space requirements, first frequency range or the second frequency range include two sections of DMRS.

19. the network equipment as claimed in claim 18, which is characterized in that meet the first frequency range or second of DMRS space requirements Second segment DMRS in frequency range is located at the 4th symbol after first segment DMRS.

20. the network equipment as described in claim 18 or 19, which is characterized in that the first segment DMRS of second frequency range is located at First symbol of the second frequency range.

21. the network equipment as claimed in claim 12, which is characterized in that be configured in the additional DMRS configuration parameter additional When DMRS, when first frequency range or the second frequency range are unsatisfactory for DMRS space requirements, the processor determines not frequency hopping；Or

When first frequency range and the second frequency range meet DMRS space requirements, the processing unit determine first frequency range and Second frequency range respectively includes two sections of DMRS.

22. the network equipment as described in any one of claim 16,18,19 or 21, which is characterized in that the interval DMRS needs There are three symbols between two sections of DMRS of Seeking Truth frequency range.

23. a kind of communication system, which is characterized in that the communication system includes any institute in terminal and claim 12~22 The network equipment stated.

24. a kind of processing unit, which is characterized in that the processing unit includes at least one circuit, at least one described circuit For method described in any one of perform claim requirement 1~11.

25. a kind of computer readable storage medium, which is characterized in that instruction is stored in the computer readable storage medium, When described instruction is run on the processing component of computer, so that any in processing component perform claim requirement 1~11 Method described in.

26. a kind of chip, which is characterized in that the chip includes programmable logic circuit and program instruction or programmable logic Circuit or program instruction, when chip operation for realizing method described in any one of claim 1~11.