CN108111266A

CN108111266A - Collocation method, communicator and the communication node of demodulated reference signal

Info

Publication number: CN108111266A
Application number: CN201710313204.4A
Authority: CN
Inventors: 姚珂; 蒋创新; 张楠; 鲁照华; 李儒岳
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-05-05
Filing date: 2017-05-05
Publication date: 2018-06-01
Anticipated expiration: 2037-05-05
Also published as: CN108111266B; WO2018202214A1

Abstract

The invention discloses a kind of collocation method of demodulated reference signal, including：First communication node configures at least one first kind parameter by the first signaling for the second communication node, and pass through the second signaling and distribute the second class parameter for second communication node, the position of the demodulated reference signal is determined according to the pattern of the first kind parameter, the second class parameter and demodulated reference signal；Or, first communication node by the second signaling distribute the second class parameter for the second communication node, the position of the demodulated reference signal is determined according to the pattern of the second class parameter and demodulated reference signal.The invention also discloses the communicators and communication node of demodulated reference signal.

Description

Collocation method, communicator and the communication node of demodulated reference signal

Technical field

The present invention relates to mobile communication technology more particularly to a kind of collocation method of demodulated reference signal, communicator and Communication node.

Background technology

At present, new generation of wireless communication (New Radio, NR) technology is being formulated, as the 5th third-generation mobile communication system System, the technology need to support much more unprecedented different types of application scenarios, it is also necessary at the same support traditional frequency range, high band with And wave beam mode, the design of demodulated reference signal (Demodulation Reference Signal, DMRS) is brought and is chosen greatly very much War.

Design can be supported efficiently to be suitable for the DMRS types of as far as possible more scenes or can spirit by simply configuring All scenes are supported livingly, are the targets of DMRS designs；Third generation partner program (3rd Generation at present Partnership Project, 3GPP) it is determined as single user multiple-input, multiple-output (Single User to the design object of DMRS Multiple Input Multiple Output, SU-MIMO) the maximum number of plies of DMRS patterns supported is 8 layers, multi-user is more Enter to have more the pattern of the DMRS of (Multi User Multiple Input Multiple Output, MU-MIMO) support most The big number of plies is at least 12 layers；

But the prior art is not come to a conclusion explicitly also for the configuration mode of specific DMRS and the pattern of DMRS, this Sample can not weigh performance and expense in pilot design, can not meet the pilot data power for maximizing power utilization and stablizing The condition of ratio reduces the performance of system.

The content of the invention

In view of this, an embodiment of the present invention is intended to provide a kind of collocation method of demodulated reference signal, communicators and logical Believe node, disclosure satisfy that the condition for maximizing power utilization and the pilot data power ratio stablized, improve the performance of system.

In order to achieve the above objectives, the technical proposal of the invention is realized in this way：

The present invention provides a kind of collocation method of demodulated reference signal, the described method includes：

First communication node configures at least one first kind parameter by the first signaling for the second communication node, and passes through the Two signalings distribute the second class parameter for second communication node, according to the first kind parameter, the second class parameter and solution The pattern of reference signal is adjusted to determine the position of the demodulated reference signal；

Or, first communication node by the second signaling for the second communication node distribute the second class parameter, according to described second The pattern of class parameter and demodulated reference signal determines the position of the demodulated reference signal.

In said program, the first kind parameter includes the first time domain parameter of demodulated reference signal；The second class ginseng Number includes：Demodulated reference signal parameter and/or resource configuration parameter；

The demodulated reference signal parameter include it is following at least one of：Second time domain parameter of demodulated reference signal, The frequency domain parameter of demodulated reference signal, the antenna port parameter of demodulated reference signal, demodulated reference signal code division multiplexing ginseng Number；

The resource configuration parameter include it is following at least one of：The time domain parameter of resource, the frequency domain parameter of resource, money Total number of plies of multi-user's multiple-input, multiple-output group where the number of plies, resource shared by source；

The pattern of the demodulated reference signal be used to indicate the occupied time-frequency domain position of every layer of demodulated reference signal with And the type and/or length of code division multiplexing.

In said program, first signaling includes high-level signaling, and the high-level signaling includes radio resource control signaling； Second signaling includes physical layer signaling, and the physical layer signaling includes down link control information signaling or physical layer controls Channel signaling.

In said program, the method further includes：

First communication node is on the position of the demodulated reference signal to described in second communication node transmission Demodulated reference signal；Or, first communication node receives second communication section on the position of the demodulated reference signal The demodulated reference signal that point is sent.

In said program, the method further includes：

Whether first communication node is needed according to physical down by the second communication node described in the 3rd signal deployment The start-stop position of shared channel determines the position of the demodulated reference signal.

In said program, the pattern according to the first kind parameter, the second class parameter and demodulated reference signal Determine the position of the demodulated reference signal, including：

Money in first time domain parameter of the demodulated reference signal in the first kind parameter, the second class parameter The time domain parameter in source determines the time-domain position of the demodulated reference signal；Or the demodulation reference letter in the first kind parameter Number the first time domain parameter, the second time domain parameter of demodulated reference signal in the second class parameter, the second class parameter In the time domain parameter of resource determine the time-domain position of the demodulated reference signal；

The frequency domain parameter of resource in the second class parameter determines the frequency domain position of the demodulated reference signal；

The antenna port parameter of demodulated reference signal in the second class parameter, the code of demodulated reference signal divide multiple At least one in total number of plies of multi-user's multiple-input, multiple-output group where the number of plies, resource shared by parameter, resource determines institute State the spatial domain position of demodulated reference signal and code domain position；

According to the time-domain position of the demodulated reference signal, the frequency domain position of the demodulated reference signal, the demodulation ginseng The pattern for examining the spatial domain position of signal, the code domain position of the demodulated reference signal and the demodulated reference signal determines the solution Adjust the position of reference signal.

In said program, when second communication node is supports the communication node of self-contained structure, the first kind ginseng Number further includes the first self-contained structural parameters, and the resource configuration parameter further includes the second self-contained structural parameters；

The first self-contained structural parameters are used to indicate the time-domain position of the demodulated reference signal of self-contained structure；It is described Second self-contained structural parameters are used to indicate whether the resource for notifying second communication node currently transmitted is self-contained structure.

It is the first time domain parameter of the demodulated reference signal in the first kind parameter, described in said program The time domain parameter of resource in second class parameter determines the time-domain position of the demodulated reference signal, including：

First time domain parameter of the demodulated reference signal in the first kind parameter and the first self-contained structural parameters, The time domain parameter of resource in second class parameter and the second self-contained structural parameters determine the time domain position of the demodulated reference signal It puts.

In said program, the first time domain parameter and first of the demodulated reference signal in the first kind parameter The time domain parameter and the second self-contained structural parameters of self-contained structural parameters, resource in the second class parameter, determine the demodulation The time-domain position of reference signal, including：

According to the first time domain parameter of the demodulated reference signal and the first self-contained structural parameters, described is determined The demodulated reference signal that one communication node configures OFDM symbol position shared on all time slots in Current resource, OFDM symbol start-stop position and the second self-contained structural parameters further according to the time domain parameter of the resource, really It is scheduled on the time-domain position for the demodulated reference signal for belonging to second communication node in the Current resource；

Second communication node described in OFDM symbol start-stop position instruction in the time domain parameter of the resource When resource does not take all symbols of all time slots in Current resource, according to the orthogonal frequency division multiplexing of the time domain parameter of the resource Institute of the demodulated reference signal of the first communication node configuration in the current scheduling resource is selected with symbol start-stop position There is the time domain as the demodulated reference signal in whole or in part in OFDM symbol position shared on time slot Position；Wherein, match somebody with somebody in the OFDM symbol initial position of the time domain parameter of the resource in first communication node When being more than N number of symbol after the OFDM symbol for the demodulated reference signal put, the solution of the first communication node configuration The OFDM symbol for adjusting reference signal is invalid to second communication node；The N is natural number；In the resource The OFDM symbol for the demodulated reference signal that the symbol final position of time domain parameter is configured in first communication node When being less than M symbol before, the OFDM symbol of the demodulated reference signal of the first communication node configuration is to described Second communication node is invalid；The M is natural number.

In said program, the pattern of the demodulated reference signal is in an Orthogonal Frequency Division Multiplexing OFDM symbol The pattern of the demodulated reference signal of middle all layers of support；Wherein, identical time-frequency domain resource is occupied per X layers, frequency domain is occupied and connects X continuous subcarrier is code division multiplexing between X layers；Include Y unduplicated codes in one OFDM symbol Divide the grouping of multiplexing, each grouping includes X layers；Described X, Y are natural number；

When the number of plies that the pattern of the demodulated reference signal is supported is 8, the value of [X, Y] is [2,4] or [4,2]；It is described The time-frequency domain resource number that the frequency domain granularity higher slice of each Physical Resource Block PRB of the pattern of demodulated reference signal occupies More than the time-frequency domain resource number of other layers of occupancy；

When the number of plies that the pattern of the demodulated reference signal is supported is 12, the value of [X, Y] is [4,3] or [6,2].

In said program,

The pattern of the demodulated reference signal is supports between OFDM symbol in a time slot or more The pattern of frequency domain saltus step is carried out between adjacent orthogonal frequency division multiplexing symbol in a time slot according to default frequency domain hop mode；

Wherein, the frequency domain saltus step is the frequency domain saltus step in units of the group of code division multiplexing；The default frequency domain saltus step side Formula is determined according to the group number of code division multiplexing；Include in the default frequency domain hop mode number of sequence selection with And not homotactic appearance order；The sphere of action of the default frequency domain hop mode refers to all demodulation ginseng in each time slot The scope or multiple time slots for examining one group of sequence of use of the OFDM symbol Xun Huan of signal are joined together to all demodulation The scope of one group of sequence of use of the OFDM symbol Xun Huan of reference signal.

In said program,

The number of plies that the pattern of the demodulated reference signal is supported is 8, and when the value of [X, the Y] is [2,4], the solution The number of plies that the pattern of reference signal is supported is adjusted as group 1, group 2, group 3, group 4 this 4 groups, in a PRB described 4 groups on frequency domain There are following 4 different sequences in position：

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

The number of plies that the pattern of the demodulated reference signal is supported is 12, and when the value of [X, the Y] is [4,3], it is described The number of plies that the pattern of demodulated reference signal is supported is group 11, group 22,33 this 3 groups of group, in a PRB described 3 groups on frequency domain Position have following 3 different sequences：

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

The number of plies that the pattern of the demodulated reference signal is supported is 8, and when the value of [X, the Y] is [4,2], Huo,Suo The number of plies that the pattern of demodulated reference signal is supported is stated as 12, and when the value of [X, the Y] is [6,2], the demodulation reference letter Number the number of plies supported of pattern be group 111, group 222 this 2 groups, in a PRB 2 groups of positions on frequency domain have it is following not 2 same sequences：

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

The present invention also provides a kind of collocation method of demodulated reference signal, the described method includes：

Second communication node receives at least one first kind parameter of first communication node by the first signal deployment, and connects The second class parameter that first communication node is distributed by the second signaling is received, according to the first kind parameter, second class The pattern of parameter and demodulated reference signal demodulated reference signal determines the position of the demodulated reference signal；

Or, second communication node receive the second class parameter that first communication node is distributed by the second signaling, according to The pattern of the second class parameter and demodulated reference signal determines the position of the demodulated reference signal.

The resource configuration parameter include it is following at least one of：The time domain parameter of resource, the frequency domain parameter of resource, money Total number of plies of multi-user's multiple-input, multiple-output multi-user's multiple-input, multiple-output group where the number of plies, resource shared by source；

In said program, the method further includes：

Second communication node is on the position of the demodulated reference signal to described in first communication node transmission Demodulated reference signal；Or, second communication node receives first communication section on the position of the demodulated reference signal The demodulated reference signal that point is sent.

In said program, the method further includes：

Whether second communication node is needed according to object according to first communication node by the 3rd signal deployment The start-stop position of DSCH Downlink Shared Channel is managed to determine the position of the demodulated reference signal.

According to the first time domain parameter of the demodulated reference signal and the first self-contained structural parameters, described is determined The demodulated reference signal that one communication node configures Orthogonal Frequency Division Multiplexing orthogonal frequency shared on all time slots in Current resource Multiplexed symbols position, OFDM symbol start-stop position and described second further according to the time domain parameter of the resource are wrapped certainly Containing structural parameters, the time-domain position for belonging to the demodulated reference signal of second communication node in the Current resource is determined；

Second communication node described in OFDM symbol start-stop position instruction in the time domain parameter of the resource When resource does not take all symbols of all time slots in Current resource, according to the orthogonal frequency division multiplexing of the time domain parameter of the resource Institute of the demodulated reference signal of the first communication node configuration in the current scheduling resource is selected with symbol start-stop position There is the time domain as the demodulated reference signal in whole or in part in OFDM symbol position shared on time slot Position；Wherein, match somebody with somebody in the OFDM symbol initial position of the time domain parameter of the resource in first communication node When being more than N number of symbol after the OFDM symbol for the demodulated reference signal put, second communication node is to described the The OFDM symbol of the demodulated reference signal of one communication node configuration is invalid；The N is natural number；In the resource The OFDM symbol for the demodulated reference signal that the symbol final position of time domain parameter is configured in first communication node When being less than M symbol before, demodulated reference signal that second communication node configures first communication node it is orthogonal Frequency division multiplexing symbol is invalid；The M is natural number.

In said program,

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

The present invention also provides a kind of first communication device, the first communication device includes：

Configuration module configures at least one first kind parameter for secondary communication device for passing through the first signaling, and passes through Second signaling distributes the second class parameter for the secondary communication device；

Determining module, for according to the first kind parameter, the second class parameter and demodulated reference signal demodulation reference The pattern of signal determines the position of the demodulated reference signal；

Or, the first communication device includes：

Configuration module distributes the second class parameter for passing through the second signaling for secondary communication device；

Determining module, for determining that the demodulation reference is believed according to the pattern of the second class parameter and demodulated reference signal Number position.

In said program, the first communication device further includes：

Communication module, for sending the demodulation to the secondary communication device on the position of the demodulated reference signal Reference signal；

Or, communication module, for receiving the secondary communication device transmission on the position of the demodulated reference signal The demodulated reference signal.

In said program, whether the configuration module is additionally operable to need by secondary communication device described in the 3rd signal deployment The position of the demodulated reference signal is determined according to the start-stop position of Physical Downlink Shared Channel PDSCH.

In said program, the determining module, specifically for the demodulated reference signal in the first kind parameter First time domain parameter, the time domain parameter of resource in the second class parameter determine the time-domain position of the demodulated reference signal； Or the demodulation reference in the first time domain parameter of the demodulated reference signal in the first kind parameter, the second class parameter Second time domain parameter of signal, the time domain parameter of resource in the second class parameter determine the time domain of the demodulated reference signal Position；

The determining module determines the solution also particularly useful for the frequency domain parameter of the resource in the second class parameter Adjust the frequency domain position of reference signal；

The determining module is joined also particularly useful for the antenna port of the demodulated reference signal in the second class parameter Number, the parameter of code division multiplexing of demodulated reference signal, the number of plies shared by resource, multi-user's multiple-input, multiple-output group where resource it is total At least one in the number of plies determines the spatial domain position of the demodulated reference signal and code domain position；

The determining module, also particularly useful for time-domain position, the demodulation reference letter according to the demodulated reference signal Number frequency domain position, the spatial domain position of the demodulated reference signal, the code domain position of the demodulated reference signal and the demodulation The pattern of reference signal determines the position of the demodulated reference signal.

In said program, when the secondary communication device is supports the communicator of self-contained structure, the first kind ginseng Number further includes the first self-contained structural parameters, and the resource configuration parameter further includes the second self-contained structural parameters；

The first self-contained structural parameters are used to indicate the time-domain position of the demodulated reference signal of self-contained structure；It is described Second self-contained structural parameters are used to indicate whether the resource for notifying the secondary communication device currently transmitted is self-contained structure.

In said program, the determining module, specifically for the demodulated reference signal in the first kind parameter The time domain parameter and the second self-contained structure of first time domain parameter and the first self-contained structural parameters, resource in the second class parameter Parameter determines the time-domain position of the demodulated reference signal.

In said program, the determining module, also particularly useful for the first time domain parameter according to the demodulated reference signal And the first self-contained structural parameters, determine the demodulated reference signal of first communication node configuration institute in Current resource Have on time slot shared Orthogonal Frequency Division Multiplexing OFDM symbol position, further according to the resource time domain parameter it is orthogonal Frequency division multiplexing symbol start-stop position and the second self-contained structural parameters, determine to belong to described second in the Current resource The time-domain position of the demodulated reference signal of communication node；

The determining module, also particularly useful for the OFDM symbol start-stop position of the time domain parameter in the resource When indicating that the resource of the secondary communication device does not take all symbols of all time slots in Current resource, according to the resource The OFDM symbol start-stop position of time domain parameter the demodulated reference signal of first communication device configuration is selected to exist All or part of conduct on all time slots in the current scheduling resource in shared OFDM symbol position The time-domain position of the demodulated reference signal；Wherein, the resource time domain parameter OFDM symbol start bit When putting after the OFDM symbol of the demodulated reference signal of first communication device configuration more than N number of symbol, institute The OFDM symbol for stating the demodulated reference signal of first communication device configuration is invalid to the secondary communication device；It is described N is natural number；In the demodulation reference that the symbol final position of the time domain parameter of the resource is configured in the first communication device When being less than M symbol before the OFDM symbol of signal, the demodulated reference signal of the first communication device configuration OFDM symbol is invalid to the secondary communication device；The M is natural number.

In said program,

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

The present invention also provides a kind of secondary communication device, the secondary communication device includes：

Communication module, for receiving at least one first kind parameter of the first communication device by the first signal deployment, and Receive the second class parameter that the first communication device is distributed by the second signaling；

Or, the secondary communication device includes：

Communication module, for receiving the second class parameter that the first communication device is distributed by the second signaling；

In said program, first signaling includes high-level signaling, and the high-level signaling includes radio resource control signaling； Second signaling includes physical layer signaling, and the physical layer signaling includes down link control information DCI signalings or physical layer Control channel signaling.

In said program, the communication module is additionally operable on the position of the demodulated reference signal logical to described first T unit sends the demodulated reference signal；

Or, the communication module, it is additionally operable to receive the first communication device on the position of the demodulated reference signal The demodulated reference signal sent.

In said program, the communication module is additionally operable to pass through the 3rd signal deployment according to first communication node Whether need to determine the position of the demodulated reference signal according to the start-stop position of Physical Downlink Shared Channel PDSCH.

In said program, when the secondary communication device is supports the communication node of self-contained structure, the first kind ginseng Number further includes the first self-contained structural parameters, and the resource configuration parameter further includes the second self-contained structural parameters；

In said program, the determining module, also particularly useful for the demodulated reference signal in the first kind parameter The first time domain parameter and the first self-contained structural parameters, the time domain parameter and the second self-contained knot of resource in the second class parameter Structure parameter determines the time-domain position of the demodulated reference signal.

In said program, the determining module, also particularly useful for the first time domain parameter according to the demodulated reference signal And the first self-contained structural parameters, determine the demodulated reference signal of the first communication device configuration institute in Current resource Have on time slot shared Orthogonal Frequency Division Multiplexing OFDM symbol position, further according to the resource time domain parameter it is orthogonal Frequency division multiplexing symbol start-stop position and the second self-contained structural parameters, determine to belong to described second in the Current resource The time-domain position of the demodulated reference signal of communicator；

Secondary communication device described in OFDM symbol start-stop position instruction in the time domain parameter of the resource When resource does not take all symbols of all time slots in Current resource, according to the orthogonal frequency division multiplexing of the time domain parameter of the resource Institute of the demodulated reference signal of the first communication device configuration in the current scheduling resource is selected with symbol start-stop position There is the time domain as the demodulated reference signal in whole or in part in OFDM symbol position shared on time slot Position；Wherein, match somebody with somebody in the OFDM symbol initial position of the time domain parameter of the resource in the first communication device When being more than N number of symbol after the OFDM symbol for the demodulated reference signal put, the secondary communication device is to described the The OFDM symbol of the demodulated reference signal of one communication device configuration is invalid；The N is natural number；In the resource The OFDM symbol for the demodulated reference signal that the symbol final position of time domain parameter is configured in the first communication device When being less than M symbol before, demodulated reference signal that the secondary communication device configures the first communication device it is orthogonal Frequency division multiplexing symbol is invalid；The M is natural number.

In said program,

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

The present invention also provides a kind of first communication node, first communication node includes：

Interface, bus, memory, with processor, the interface, the memory and the processor pass through the bus It is connected, for storing instruction, the processor reads described instruction and is used for the memory：

At least one first kind parameter is configured for the second communication node by the first signaling, and it is described to pass through the second signaling Second communication node distributes the second class parameter, according to the first kind parameter, the second class parameter and demodulated reference signal solution The pattern of reference signal is adjusted to determine the position of the demodulated reference signal；

Or, the second class parameter is distributed for the second communication node by the second signaling, according to the second class parameter and demodulation The pattern of reference signal determines the position of the demodulated reference signal.

In said program, second communication node includes：

At least one first kind parameter of first communication node by the first signal deployment is received, and it is logical to receive described first The second class parameter that letter node is distributed by the second signaling is joined according to the first kind parameter, the second class parameter and demodulation The pattern for examining signal demodulated reference signal determines the position of the demodulated reference signal；

Or, the second class parameter that first communication node is distributed by physical layer signaling is received, according to second class The pattern of parameter and demodulated reference signal determines the position of the demodulated reference signal.

The present invention also provides a kind of computer readable storage mediums, are stored with computer executable instructions, the computer The collocation method of demodulated reference signal as described above is realized when executable instruction is executed by processor.

Collocation method, communicator and the communication node of demodulated reference signal provided in an embodiment of the present invention, the first communication Node configures at least one first kind parameter by the first signaling for the second communication node, and passes through the second signaling as the second communication Node distributes the second class parameter, and demodulation reference is determined according to the pattern of first kind parameter, the second class parameter and demodulated reference signal The position of signal；Or, first communication node by the second signaling for the second communication node distribute the second class parameter, according to the second class The pattern of parameter and demodulated reference signal determines the position of demodulated reference signal；The scheme of the embodiment of the present invention proposes DMRS's The pattern of configuration mode and DMRS can weigh performance and expense in pilot design, disclosure satisfy that maximization power utilization With the condition of stable pilot data power ratio, the performance of system is improved.

Description of the drawings

Fig. 1 is the flow chart of the collocation method embodiment one of demodulated reference signal of the present invention；

Fig. 2 is the flow chart of the collocation method embodiment two of demodulated reference signal of the present invention；

Fig. 3 is the structure diagram of first communication device embodiment of the present invention；

Fig. 4 is the structure diagram of secondary communication device embodiment of the present invention；

Fig. 5 is the structure diagram of the first communication node embodiment of the invention；

Fig. 6 is the structure diagram of the second communication node embodiment of the invention；

Fig. 7-1 is the collocation method of demodulated reference signal of the present invention in an OFDM symbol and in the frequency of a PRB The schematic diagram one of the pattern of 8 layers of DMRS in field width degree；

Fig. 7-2 is the collocation method of demodulated reference signal of the present invention in an OFDM symbol and in the frequency of a PRB The schematic diagram two of the pattern of 8 layers of DMRS in field width degree；

Fig. 7-3 is the collocation method of demodulated reference signal of the present invention in an OFDM symbol and in the frequency of a PRB The schematic diagram three of the pattern of 8 layers of DMRS in field width degree；

Fig. 8-1 carries Density inhomogeneity for the collocation method of demodulated reference signal of the present invention in an OFDM symbol And the pattern of all layers of DMRS on more than 1 PRB schematic diagram one；

Fig. 8-2 carries Density inhomogeneity for the collocation method of demodulated reference signal of the present invention in an OFDM symbol And the pattern of all layers of DMRS on more than 1 PRB schematic diagram two；

Fig. 9-1 is the collocation method of demodulated reference signal of the present invention in an OFDM symbol and in the frequency of a PRB The schematic diagram one of the pattern of 12 layers of DMRS in field width degree；

Fig. 9-2 is the collocation method of demodulated reference signal of the present invention in an OFDM symbol and in the frequency of a PRB The schematic diagram two of the pattern of 12 layers of DMRS in field width degree；

Figure 10-1 bags in a manner of FD-CDM2 in an OFDM symbol for the collocation method of demodulated reference signal of the present invention It is contained in the schematic diagram one of the pattern of most 8 layers of DMRS in multiple OFDM symbols；

Figure 10-2 bags in a manner of FD-CDM2 in an OFDM symbol for the collocation method of demodulated reference signal of the present invention It is contained in the schematic diagram two of the pattern of most 8 layers of DMRS in multiple OFDM symbols；

Figure 10-3 bags in a manner of FD-CDM2 in an OFDM symbol for the collocation method of demodulated reference signal of the present invention It is contained in the schematic diagram three of the pattern of most 8 layers of DMRS in multiple OFDM symbols；

Figure 10-4 bags in a manner of FD-CDM2 in an OFDM symbol for the collocation method of demodulated reference signal of the present invention It is contained in the schematic diagram four of the pattern of most 8 layers of DMRS in multiple OFDM symbols；

Figure 11 be the collocation method of demodulated reference signal of the present invention base station by RRC signaling be UE configure DMRS pattern Schematic diagram；

Figure 12-1 is the figure that 8 layers of DMRS is accommodated in an OFDM symbol of the collocation method of demodulated reference signal of the present invention Sample schematic diagram one；

Figure 12-2 is the figure that 8 layers of DMRS is accommodated in an OFDM symbol of the collocation method of demodulated reference signal of the present invention Sample schematic diagram two；

Figure 12-3 is the figure that 8 layers of DMRS is accommodated in an OFDM symbol of the collocation method of demodulated reference signal of the present invention Sample schematic diagram three.

Specific embodiment

Here, the explanation of Chinese and English, nothing of new generation are carried out for word that is being used in the present invention and may using Line communication (New Radio, NR), demodulated reference signal (Demodulation Reference Signal, DMRS), single user Multiple-input, multiple-output (Single User Multiple Input Multiple Output, SU-MIMO), multi-user's multiple-input, multiple-output (Multi User Multiple Input Multiple Output, MU-MIMO), wireless heterogeneous networks (Radio Resource Control, RRC), it is down link control information (Downlink Control Information, DCI), orthogonal Frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM), Physical Resource Block (Physical Resource Block, PRB), hybrid automatic repeat-request (Hybrid Automatic Repeat reQuest, HARQ), object Manage DSCH Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH), time division multiplexing (Time Division Multiplexing, TDM), frequency division multiplexing (Frequency Division Multiplexing, FDM), code division multiplexing (Code Division Multiplexing, CDM), user equipment (User Equipment, UE), transmission confirm feedback (Acknowledgement, ACK), transmission are denied feeding back (Negative Acknowledgment, NACK).

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes.

Fig. 1 is the flow chart of the collocation method embodiment one of demodulated reference signal of the present invention, as shown in Figure 1, the present invention is real The collocation method for applying the demodulated reference signal of example offer is applied on the first communication node, which can be base It stands；Specific method and step is as follows：

Whether step 101, the first communication node are needed according to physical down by the 3rd the second communication node of signal deployment The start-stop position of shared channel determines the position of demodulated reference signal.

First communication node configures second by the 3rd signaling (the 3rd signaling here can be understood as common signaling) Communication node needs to determine the position of demodulated reference signal or first logical according to the start-stop position of Physical Downlink Shared Channel Letter node need not determine demodulation by the second communication node of signal deployment according to the start-stop position of Physical Downlink Shared Channel The position of reference signal；The switch for being used to indicate the position that the second communication node is directed to definite demodulated reference signal is to open also It is to close, in the first communication node by the second communication node of signal deployment needs according to the start stop bit of Physical Downlink Shared Channel When putting to determine the position of demodulated reference signal, perform following step 102a and 103a or perform following step 102b and 103b。

Step 102a, the first communication node configures at least one first kind for the second communication node by the first signaling and joins Number, and pass through the second signaling and distribute the second class parameter for the second communication node.

Wherein, first signaling includes high-level signaling, and the high-level signaling includes radio resource control signaling；Described Two signalings include physical layer signaling, and the physical layer signaling includes down link control information signaling or physical layer control channel is believed Order；

The first kind parameter includes the first time domain parameter of demodulated reference signal；The second class parameter includes：Demodulation Reference signal parameter and/or resource configuration parameter；

The resource configuration parameter include it is following at least one of：The time domain parameter of resource, the frequency domain parameter of resource, money Total number of plies of multi-user's multiple-input, multiple-output group where the number of plies, resource shared by source.

Step 103a, the first communication node is true according to the pattern of first kind parameter, the second class parameter and demodulated reference signal Determine the position of demodulated reference signal.

Wherein, the pattern of the demodulated reference signal is used to indicate the occupied time-frequency domain of every layer of demodulated reference signal (time-frequency) position and the type and/or length of code division multiplexing.

The pattern of the demodulated reference signal is to support own in an Orthogonal Frequency Division Multiplexing OFDM symbol The pattern of the demodulated reference signal of layer；Wherein, identical time-frequency domain resource is occupied per X layers, occupies the continuous X son of frequency domain Carrier wave is code division multiplexing between X layers；Include a unduplicated code division multiplexings of Y in one OFDM symbol Grouping, each grouping include X layers；Described X, Y are natural number；

Further, the pattern of the demodulated reference signal for support OFDM symbol in a time slot it Between or multiple time slots in adjacent orthogonal frequency division multiplexing symbol between frequency domain saltus step carried out according to default frequency domain hop mode Pattern；

Further, the number of plies that the pattern of the demodulated reference signal is supported is 8, and the value of [X, the Y] is [2,4] When, the number of plies that the pattern of the demodulated reference signal is supported is group 1, organizes 2, group 3,4 this 4 groups of group, described 4 groups in a PRB There are following 4 different sequences in position on frequency domain：

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

Specifically, how to determine that the position of demodulated reference signal determines to obtain according to following step.

First, the first time domain parameter of the demodulated reference signal in the first kind parameter, the second class parameter In the time domain parameter of resource determine the time-domain position of the demodulated reference signal；Or, the solution in the first kind parameter Adjust the first time domain parameter of reference signal, the second time domain parameter of demodulated reference signal in the second class parameter, described the The time domain parameter of resource in two class parameters determines the time-domain position of the demodulated reference signal；

When the second communication node is supports the communication node of self-contained structure, the first kind parameter further includes first certainly Comprising structural parameters, the resource configuration parameter further includes the second self-contained structural parameters；Wherein, the described first self-contained structure Parameter is used to indicate the time-domain position of the demodulated reference signal of self-contained structure；The second self-contained structural parameters are used to indicate Whether the resource for notifying second communication node currently transmitted is self-contained structure.

In first time domain parameter of the demodulated reference signal in the first kind parameter, the second class parameter The time domain parameter of resource determine the time-domain position of the demodulated reference signal, including：According to the solution in the first kind parameter Adjust the first time domain parameter of reference signal and the first self-contained structural parameters, the time domain parameter of resource in the second class parameter and the Two self-contained structural parameters determine the time-domain position of the demodulated reference signal.

Specifically, the first time domain parameter of the demodulated reference signal in the first kind parameter and first from wrap Time domain parameter and the second self-contained structural parameters containing the resource in structural parameters, the second class parameter, determine the demodulation reference The time-domain position of signal, including：According to the first time domain parameter of the demodulated reference signal and the first self-contained structure ginseng Number determines the demodulated reference signal of the first communication node configuration orthogonal frequency shared on all time slots in Current resource Multiplexed symbols position, OFDM symbol start-stop position and described second further according to the time domain parameter of the resource are wrapped certainly Containing structural parameters, the time-domain position for belonging to the demodulated reference signal of second communication node in the Current resource is determined；

Then, the frequency domain parameter of the resource in the second class parameter determines the frequency domain position of the demodulated reference signal It puts；

Afterwards, the antenna port parameter of the demodulated reference signal in the second class parameter, demodulated reference signal The number of plies shared by the parameter of code division multiplexing, resource, in total number of plies of multi-user's multiple-input, multiple-output group where resource at least one of Determine the spatial domain position of the demodulated reference signal and code domain position；

Finally, according to the time-domain position of the demodulated reference signal, the frequency domain position of the demodulated reference signal, the solution Spatial domain position, the code domain position of the demodulated reference signal and the pattern of the demodulated reference signal of reference signal is adjusted to determine institute State the position of demodulated reference signal.

Step 102b, the first communication node distributes the second class parameter by the second signaling for the second communication node.

First communication node distributes the second class parameter by the second signaling for the second communication node；Wherein, second here Signaling and the second class parameter may refer to described in step 102a, and not in this to go forth.

Step 103b, the first communication node determines that demodulation reference is believed according to the pattern of the second class parameter and demodulated reference signal Number position.

First communication node determines the position of demodulated reference signal according to the pattern of the second class parameter and demodulated reference signal； Wherein, the pattern of demodulated reference signal here may refer to described in step 103a, and not in this to go forth；In addition, The position of demodulated reference signal is determined according to the pattern of the second class parameter and demodulated reference signal herein for the first communication node It may refer to described in step 103a, not in this to go forth.

Step 104, the first communication node send demodulation reference on the position of demodulated reference signal to the second communication node Signal；Or, first communication node received on the position of demodulated reference signal the second communication node transmission demodulated reference signal.

First communication node can send demodulated reference signal on the position of demodulated reference signal to the second communication node； Alternatively, the first communication node can also receive the demodulation reference letter of the second communication node transmission on the position of demodulated reference signal Number.

The collocation method of demodulated reference signal provided in an embodiment of the present invention, the first communication node are the by the first signaling Two communication nodes configure at least one first kind parameter, and pass through the second signaling and distribute the second class parameter for the second communication node, The position of demodulated reference signal is determined according to the pattern of first kind parameter, the second class parameter and demodulated reference signal；Or, first is logical Believe that node distributes the second class parameter by the second signaling for the second communication node, according to the second class parameter and demodulated reference signal Pattern determines the position of demodulated reference signal；The scheme of the embodiment of the present invention proposes the configuration mode of DMRS and the figure of DMRS Sample can weigh performance and expense in pilot design, disclosure satisfy that the pilot data power for maximizing power utilization and stablizing The condition of ratio improves the performance of system.

Fig. 2 is the flow chart of the collocation method embodiment two of demodulated reference signal of the present invention, as shown in Fig. 2, the present invention is real The collocation method for applying the demodulated reference signal of example offer is applied on the second communication node, which can be user Equipment；Specific method and step is as follows：

Whether step 201, the second communication node are needed according to object according to the first communication node by the 3rd signal deployment The start-stop position of DSCH Downlink Shared Channel is managed to determine the position of demodulated reference signal.

According to the first communication node, by the 3rd signaling, (the 3rd signaling here can be common letter to second communication node Make) configuration needs the position of demodulated reference signal or second are determined according to the start-stop position of Physical Downlink Shared Channel Communication node according to the first communication node by signal deployment need not according to the start-stop position of Physical Downlink Shared Channel come Determine the position of demodulated reference signal, i.e. the second communication node according to the instruction of the first communication node, for it is clear and definite itself really The switch for determining the position of demodulated reference signal is to open or close；Letter is passed through according to the first communication node in the second communication node Make the needs configured according to the start-stop position of Physical Downlink Shared Channel come (i.e. second is logical when determining the position of demodulated reference signal Letter node determines that the switch of the position of demodulated reference signal is when opening), under performing following step 202a and 203a or performing The step 202b and 203b in face.

Step 202a, the second communication node receives at least one first kind of first communication node by the first signal deployment Parameter, and receive the second class parameter that the first communication node is distributed by the second signaling.

Wherein, first signaling includes high-level signaling, and the high-level signaling includes radio resource control RRC signaling；Institute Stating the second signaling includes physical layer signaling, and the physical layer signaling includes down link control information DCI signalings or physical layer control Channel signaling processed；

Step 203a, it is true according to the pattern of first kind parameter, the second class parameter and demodulated reference signal demodulated reference signal Determine the position of demodulated reference signal.

Specifically, the pattern of the demodulated reference signal is to be propped up in an Orthogonal Frequency Division Multiplexing OFDM symbol Hold the pattern of all layers of demodulated reference signal；Wherein, identical time-frequency domain resource is occupied per X layers, it is continuous to occupy frequency domain X subcarrier is code division multiplexing between X layers；It is multiple to include Y unduplicated codes point in one OFDM symbol Grouping, each grouping include X layers；Described X, Y are natural number；

Specifically, the pattern of the demodulated reference signal is supports between OFDM symbol in a time slot Or the figure of frequency domain saltus step is carried out between the adjacent orthogonal frequency division multiplexing symbol in multiple time slots according to default frequency domain hop mode Sample；

Specifically, the number of plies that the pattern of the demodulated reference signal is supported is 8, and the value of [X, the Y] is [2,4] When, the number of plies that the pattern of the demodulated reference signal is supported is group 1, organizes 2, group 3,4 this 4 groups of group, described 4 groups in a PRB There are following 4 different sequences in position on frequency domain：

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

First, the first time domain parameter of the demodulated reference signal in the first kind parameter, the second class parameter In the time domain parameter of resource determine the time-domain position of the demodulated reference signal；Or the demodulation in the first kind parameter First time domain parameter of reference signal, the second time domain parameter of demodulated reference signal in the second class parameter, described second The time domain parameter of resource in class parameter determines the time-domain position of the demodulated reference signal；

When second communication node is supports the communication node of self-contained structure, the first kind parameter further includes the One self-contained structural parameters, the resource configuration parameter further include the second self-contained structural parameters；Wherein, described first is self-contained Structural parameters are used to indicate the time-domain position of the demodulated reference signal of self-contained structure；The second self-contained structural parameters are used for Whether the resource for indicating to notify second communication node currently transmitted is self-contained structure.

Specifically, the first time domain parameter of the demodulated reference signal in the first kind parameter and first from wrap Time domain parameter and the second self-contained structural parameters containing the resource in structural parameters, the second class parameter, determine the demodulation reference The time-domain position of signal, including：According to the first time domain parameter of the demodulated reference signal and the first self-contained structure ginseng Number determines the demodulated reference signal of the first communication node configuration orthogonal frequency shared on all time slots in Current resource Multiplexed quadrature frequency division multiplexing symbol position, OFDM symbol start-stop position further according to the time domain parameter of the resource and The second self-contained structural parameters determine the demodulated reference signal for belonging to second communication node in the Current resource Time-domain position；

Step 202b, the second communication node receives the second class parameter that the first communication node is distributed by the second signaling.

Second communication node receives the second class parameter that the first communication node is distributed by the second signaling；Wherein, here Second signaling and the second class parameter may refer to described in step 202a, and not in this to go forth.

Step 203b, the second communication node determines that demodulation reference is believed according to the pattern of the second class parameter and demodulated reference signal Number position.

Second communication node determines the position of demodulated reference signal according to the pattern of the second class parameter and demodulated reference signal； Wherein, the pattern of demodulated reference signal here may refer to described in step 203a, and not in this to go forth；In addition, The position of demodulated reference signal is determined according to the pattern of the second class parameter and demodulated reference signal herein for the second communication node It may refer to described in step 203a, not in this to go forth.

Step 204, the second communication node send demodulation reference on the position of demodulated reference signal to the first communication node Signal；Or, second communication node received on the position of demodulated reference signal the first communication node transmission demodulated reference signal.

Second communication node can send demodulated reference signal on the position of demodulated reference signal to the first communication node； Alternatively, the second communication node can also receive the demodulation reference letter of the first communication node transmission on the position of demodulated reference signal Number.

The collocation method of demodulated reference signal provided in an embodiment of the present invention, the second communication node receive the first communication node By at least one first kind parameter of the first signal deployment, and receive the first communication node is distributed by the second signaling second Class parameter determines demodulation reference according to the pattern of first kind parameter, the second class parameter and demodulated reference signal demodulated reference signal The position of signal；Or, second communication node receive the second class parameter for being distributed by the second signaling of the first communication node, according to the The pattern of two class parameters and demodulated reference signal determines the position of demodulated reference signal；The scheme of the embodiment of the present invention proposes The configuration mode of DMRS and the pattern of DMRS, performance and expense can be weighed in pilot design, disclosure satisfy that maximization work( Rate utilizes and the condition of stable pilot data power ratio, improves the performance of system.

Fig. 3 is the structure diagram of first communication device embodiment of the present invention, as shown in figure 3, the embodiment of the present invention provides First communication device 03 include：

Configuration module 31 configures at least one first kind parameter for secondary communication device for passing through the first signaling, and leads to It crosses the second signaling and distributes the second class parameter for the secondary communication device；

Determining module 32, for according to the first kind parameter, the second class parameter and demodulated reference signal DMRS Pattern determines the position of the DMRS；

Or, the first communication device 03 includes：

Configuration module 31 distributes the second class parameter for passing through the second signaling for secondary communication device；

Determining module 32, for determining the position of the DMRS according to the pattern of the second class parameter and DMRS.

Further, the first kind parameter includes the first time domain parameter of DMRS；The second class parameter includes：DMRS Parameter and/or resource configuration parameter；

The DMRS parameters include it is following at least one of：The second time domain parameter of DMRS, the frequency domain parameter of DMRS, The parameter of the antenna port parameter of DMRS, the code division multiplexing of DMRS；

The resource configuration parameter include it is following at least one of：The time domain parameter of resource, the frequency domain parameter of resource, money Total number of plies of multi-user's multiple-input, multiple-output MU-MIMO groups where the number of plies, resource shared by source；

The pattern of the DMRS is used to indicate the type of the occupied time-frequency domain positions of every layer of DMRS and code division multiplexing And/or length.

Further, first signaling includes high-level signaling, and the high-level signaling includes radio resource control signaling；Institute Stating the second signaling includes physical layer signaling, and the physical layer signaling includes down link control information DCI signalings or physical layer control Channel signaling processed.

Further, the first communication device 03 further includes：

Communication module 33, for sending the DMRS to the secondary communication device on the position of the DMRS；

Or, communication module 33, for being received on the position of the DMRS described in the secondary communication device transmission DMRS。

Further, whether the configuration module 31 is additionally operable to need by secondary communication device described in the 3rd signal deployment The position of the DMRS is determined according to the start-stop position of Physical Downlink Shared Channel PDSCH.

Further, the determining module 32, specifically for the first time domain of the DMRS in the first kind parameter Parameter, the time domain parameter of resource in the second class parameter determine the time-domain position of the DMRS；Or according to the first kind The first time domain parameter of DMRS in parameter, the second time domain parameter of DMRS in the second class parameter, second class ginseng The time domain parameter of resource in number determines the time-domain position of the DMRS；

The determining module 32, also particularly useful for the resource in the second class parameter frequency domain parameter determine described in The frequency domain position of DMRS；

The determining module 32, antenna port parameter also particularly useful for the DMRS in the second class parameter, The number of plies shared by the parameter of the code division multiplexing of DMRS, resource, in total number of plies of the MU-MIMO groups where resource at least one of really The fixed spatial domain position of the DMRS and code domain position；

The determining module 32, also particularly useful for according to the DMRS time-domain position, the frequency domain position of the DMRS, institute The pattern for stating the spatial domain position of DMRS, the code domain position of the DMRS and the DMRS determines the position of the DMRS.

Further, when the secondary communication device is supports the communicator of self-contained structure, the first kind parameter The first self-contained structural parameters are further included, the resource configuration parameter further includes the second self-contained structural parameters；

The first self-contained structural parameters are used to indicate the time-domain position of the DMRS of self-contained structure；Described second wraps certainly It is used to indicate whether the resource for notifying the secondary communication device currently transmitted is self-contained structure containing structural parameters.

Further, the determining module 32, specifically for the first time domain of the DMRS in the first kind parameter The time domain parameter and the second self-contained structural parameters of parameter and the first self-contained structural parameters, resource in the second class parameter, really The time-domain position of the fixed DMRS.

Further, the determining module 32, also particularly useful for the first time domain parameter according to the DMRS and described One self-contained structural parameters, determine the DMRS of first communication node configuration in Current resource on all time slots it is shared just Frequency division multiplex OFDM character position is handed over, the OFDM symbol start-stop position and described second further according to the time domain parameter of the resource is certainly Comprising structural parameters, the time-domain position for belonging to the DMRS of second communication node in the Current resource is determined；

The determining module 32, also particularly useful for the OFDM symbol start-stop position instruction institute of the time domain parameter in the resource When stating the resource of secondary communication device and not taking all symbols of all time slots in Current resource, according to the time domain of the resource The OFDM symbol start-stop position of parameter selects institutes of the DMRS of the first communication device configuration in the current scheduling resource There is the time-domain position as the DMRS in whole or in part in OFDM symbol position shared on time slot；Wherein, described It is big after the OFDM symbol for the DMRS that the OFDM symbol initial position of the time domain parameter of resource is configured in the first communication device When N number of symbol, the OFDM symbol of the DMRS of the first communication device configuration is invalid to the secondary communication device；The N For natural number；In the OFDM for the DMRS that the symbol final position of the time domain parameter of the resource is configured in the first communication device When being less than M symbol before symbol, the OFDM symbol of the DMRS of the first communication device configuration is to the secondary communication device It is invalid；The M is natural number.

Further, the pattern of the DMRS is that all layers of DMRS is supported in an orthogonal frequency division multiplex OFDM symbol Pattern；Wherein, identical time-frequency domain resource is occupied per X layers, the continuous X subcarrier of frequency domain is occupied, is code between X layers Divide multiplexing；Include the grouping of Y unduplicated code division multiplexings in one OFDM symbol, each grouping includes X layers；It is described X, Y is natural number；

When the number of plies that the pattern of the DMRS is supported is 8, the value of [X, Y] is [2,4] or [4,2]；The figure of the DMRS What the time-frequency domain resource number that the frequency domain granularity higher slice of each Physical Resource Block PRB of sample occupies was occupied more than other layers Time-frequency domain resource number；

When the number of plies that the pattern of the DMRS is supported is 12, the value of [X, Y] is [4,3] or [6,2].

Further,

The pattern of the DMRS is adjacent between OFDM symbol in a time slot or in multiple time slots to support The pattern of frequency domain saltus step is carried out between OFDM symbol according to default frequency domain hop mode；

Wherein, the frequency domain saltus step is the frequency domain saltus step in units of the group of code division multiplexing；The default frequency domain saltus step side Formula is determined according to the group number of code division multiplexing；Include in the default frequency domain hop mode number of sequence selection with And not homotactic appearance order；The sphere of action of the default frequency domain hop mode refers to all DMRS's in each time slot The scope of one group of sequence of use of OFDM symbol Xun Huan or multiple time slots join together what the OFDM symbol of all DMRS was cycled Use the scope of one group of sequence.

Further,

The number of plies that the pattern of the DMRS is supported is 8, and when the value of [X, the Y] is [2,4], the pattern of the DMRS The number of plies of support is group 1, group 2, group 3,4 this 4 groups of group, and 4 groups of positions on frequency domain have following different in a PRB 4 sequences：

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

The number of plies that the pattern of the DMRS is supported is 12, and when the value of [X, the Y] is [4,3], the figure of the DMRS The number of plies that sample is supported is group 11, group 22,33 this 3 groups of group, and there are following difference in 3 groups of positions on frequency domain in a PRB 3 sequences：

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

The number of plies that the pattern of the DMRS is supported is 8, and when the value of [X, the Y] is [4,2] or, the DMRS For the number of plies that pattern is supported for 12, and when the value of [X, the Y] is [6,2], the number of plies that the pattern of the DMRS is supported is group 111st, 222 this 2 groups of group, there are following 2 different sequences in 2 groups of positions on frequency domain in a PRB：

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

The device of the present embodiment, can be used for performing it is above-mentioned shown in embodiment of the method technical solution, realization principle and Technique effect is similar, and details are not described herein again.

In practical applications, the configuration module 31, determining module 32, communication module 33, can be by being located at the first communication Central processing unit (Central Processing Unit, CPU), microprocessor (Micro Processor in device 03 Unit, MPU), digital signal processor (Digital Signal Processor, DSP) or field programmable gate array Realizations such as (Field Programmable Gate Array, FPGA).

Fig. 4 is the structure diagram of secondary communication device embodiment of the present invention, as shown in figure 4, the embodiment of the present invention provides Secondary communication device 04 include：

Communication module 41, for receiving at least one first kind parameter of the first communication device by the first signal deployment, And receive the second class parameter that the first communication device is distributed by the second signaling；

Determining module 42, for according to the first kind parameter, the second class parameter and demodulated reference signal DMRS Pattern determines the position of the DMRS；

Or, the secondary communication device 04 includes：

Communication module 41, for receiving the second class parameter that the first communication device is distributed by the second signaling；

Determining module 42, for determining the position of the DMRS according to the pattern of the second class parameter and DMRS.

Further, first signaling includes high-level signaling, and the high-level signaling includes RRC signaling；Second letter Order includes physical layer signaling, and the physical layer signaling includes DCI signalings or physical layer control channel signaling.

Further, the communication module 41 is additionally operable on the position of the DMRS send out to the first communication device Send the DMRS；

Or, the communication module 41, it is additionally operable to receive what the first communication device was sent on the position of the DMRS The DMRS.

Further, the communication module 41 is additionally operable to pass through the 3rd signal deployment according to first communication node Whether need to determine the position of the DMRS according to the start-stop position of Physical Downlink Shared Channel PDSCH.

Further, the determining module 42, specifically for the first time domain of the DMRS in the first kind parameter Parameter, the time domain parameter of resource in the second class parameter determine the time-domain position of the DMRS；Or according to the first kind The first time domain parameter of DMRS in parameter, the second time domain parameter of DMRS in the second class parameter, second class ginseng The time domain parameter of resource in number determines the time-domain position of the DMRS；

The determining module 42, also particularly useful for the resource in the second class parameter frequency domain parameter determine described in The frequency domain position of DMRS；

The determining module 42, antenna port parameter also particularly useful for the DMRS in the second class parameter, The number of plies shared by the parameter of the code division multiplexing of DMRS, resource, in total number of plies of the MU-MIMO groups where resource at least one of really The fixed spatial domain position of the DMRS and code domain position；

The determining module 42, also particularly useful for according to the DMRS time-domain position, the frequency domain position of the DMRS, institute The pattern for stating the spatial domain position of DMRS, the code domain position of the DMRS and the DMRS determines the position of the DMRS.

Further, when the secondary communication device is supports the communication node of self-contained structure, the first kind parameter The first self-contained structural parameters are further included, the resource configuration parameter further includes the second self-contained structural parameters；

The first self-contained structural parameters are used to indicate the time-domain position of the DMRS of self-contained structure；Described second wraps certainly It is used to indicate whether the resource for notifying second communication node currently transmitted is self-contained structure containing structural parameters.

Further, the determining module 42, also particularly useful for the DMRS in the first kind parameter first when The time domain parameter and the second self-contained structural parameters of field parameter and the first self-contained structural parameters, resource in the second class parameter, Determine the time-domain position of the DMRS.

Further, the determining module 42, also particularly useful for the first time domain parameter according to the DMRS and described One self-contained structural parameters, determine the DMRS of first communication device configuration in Current resource on all time slots it is shared just Frequency division multiplex OFDM character position is handed over, the OFDM symbol start-stop position and described second further according to the time domain parameter of the resource is certainly Comprising structural parameters, the time-domain position for belonging to the DMRS of the secondary communication device in the Current resource is determined；

The resource of secondary communication device does not account for described in OFDM symbol start-stop position instruction in the time domain parameter of the resource During all symbols of all time slots in full Current resource, selected according to the OFDM symbol start-stop position of the time domain parameter of the resource Select the DMRS of first communication device configuration OFDM symbol positions shared on all time slots in the current scheduling resource The time-domain position as the DMRS in whole or in part in putting；Wherein, the resource time domain parameter OFDM symbol When being more than N number of symbol after the OFDM symbol for the DMRS that initial position is configured in the first communication device, second communication Device is invalid to the OFDM symbol for the DMRS that the first communication device configures；The N is natural number；In the time domain of the resource When being less than M symbol before the OFDM symbol for the DMRS that the symbol final position of parameter is configured in the first communication device, institute The OFDM symbol for stating the DMRS that secondary communication device configures the first communication device is invalid；The M is natural number.

Further,

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

In practical applications, during the communication module 41, determining module 42 can be by being located in secondary communication device 04 Central processor (Central Processing Unit, CPU), microprocessor (Micro Processor Unit, MPU), number Signal processor (Digital Signal Processor, DSP) or field programmable gate array (Field Programmable Gate Array, FPGA) etc. realizations.

Fig. 5 is the structure diagram of the first communication node embodiment of the invention, as shown in figure 5, first communication node 05 includes：Interface 51, bus 52, memory 53, with processor 54, the interface 51, the memory 53 and the processor 54 are connected by the bus 52, and for storing instruction, the processor 54 reads described instruction and is used for the memory 53：

At least one first kind parameter is configured for the second communication node by the first signaling, and it is described to pass through the second signaling Second communication node distributes the second class parameter, is determined according to the pattern of the first kind parameter, the second class parameter and DMRS The position of the DMRS；

Or, the second class parameter is distributed for the second communication node by the second signaling, according to the second class parameter and DMRS Pattern determine the position of the DMRS.

The resource configuration parameter include it is following at least one of：The time domain parameter of resource, the frequency domain parameter of resource, money Total number of plies of the MU-MIMO groups where the number of plies, resource shared by source；

Further, the processor 54 reads described instruction and is additionally operable to：

On the position of the DMRS DMRS is sent to second communication node；

Or, the processor reads described instruction and is additionally operable to：

The DMRS that second communication node is sent is received on the position of the DMRS.

Whether rising according to Physical Downlink Shared Channel PDSCH is needed by the second communication node described in the 3rd signal deployment Stop bit is put to determine the position of the DMRS.

Further, the processor 54 reads described instruction and is specifically used for：

The time domain of the first time domain parameter of DMRS in the first kind parameter, resource in the second class parameter Parameter determines the time-domain position of the DMRS；Or the DMRS in the first kind parameter the first time domain parameter, described The second time domain parameter of DMRS in two class parameters, the time domain parameter of resource in the second class parameter determine the DMRS's Time-domain position；

The processor 54 read described instruction also particularly useful for：

The frequency domain parameter of resource in the second class parameter determines the frequency domain position of the DMRS；

The processor 54 read described instruction also particularly useful for：

The antenna port parameter of DMRS in the second class parameter, the parameter of the code division multiplexing of DMRS, resource institute In total number of plies of MU-MIMO groups where the number of plies that accounts for, resource at least one of determine spatial domain position and the code domain of the DMRS Position；

The processor 54 read described instruction also particularly useful for：

According to the time-domain position of the DMRS, the frequency domain position of the DMRS, the spatial domain position of the DMRS, the DMRS Code domain position and the pattern of the DMRS determine the position of the DMRS.

Further, when second communication node is supports the communication node of self-contained structure, the first kind parameter The first self-contained structural parameters are further included, the resource configuration parameter further includes the second self-contained structural parameters；

Further, the processor 54 read described instruction also particularly useful for：

The first time domain parameter of DMRS in the first kind parameter and the first self-contained structural parameters, the second class ginseng The time domain parameter of resource in number and the second self-contained structural parameters determine the time-domain position of the DMRS.

According to the first time domain parameter of the DMRS and the first self-contained structural parameters, first communication section is determined Orthogonal frequency division multiplex OFDM character position shared on all time slots in Current resource the DMRS that point configures, further according to the money The OFDM symbol start-stop position of the time domain parameter in source and the second self-contained structural parameters, determine to belong in the Current resource In the time-domain position of the DMRS of second communication node；

The processor read 54 take described instruction also particularly useful for：

The resource of the second communication node does not account for described in OFDM symbol start-stop position instruction in the time domain parameter of the resource During all symbols of all time slots in full Current resource, selected according to the OFDM symbol start-stop position of the time domain parameter of the resource Select the DMRS of the first communication node configuration OFDM symbol positions shared on all time slots in the current scheduling resource The time-domain position as the DMRS in whole or in part in putting；Wherein, the resource time domain parameter OFDM symbol When being more than N number of symbol after the OFDM symbol for the DMRS that initial position is configured in first communication node, first communication The OFDM symbol of the DMRS of node configuration is invalid to second communication node；The N is natural number；In the time domain of the resource When being less than M symbol before the OFDM symbol for the DMRS that the symbol final position of parameter is configured in first communication node, institute The OFDM symbol for stating the DMRS of the first communication node configuration is invalid to second communication node；The M is natural number.

Further,

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

The node of the present embodiment, can be used for performing it is above-mentioned shown in embodiment of the method technical solution, realization principle and Technique effect is similar, and details are not described herein again.

Fig. 6 is the structure diagram of the second communication node embodiment of the invention, as shown in fig. 6, second communication node 06 includes：Interface 61, bus 62, memory 63, with processor 64, the interface 61, the memory 63 and the processor 64 are connected by the bus 62, and for storing instruction, the processor 64 reads described instruction and is used for the memory 63：

At least one first kind parameter of first communication node by the first signal deployment is received, and it is logical to receive described first The second class parameter that letter node is distributed by the second signaling, according to the first kind parameter, the second class parameter and DMRS Pattern determines the position of the DMRS；

Or, the second class parameter that first communication node is distributed by the second signaling is received, joined according to second class The pattern of number and DMRS determine the position of the DMRS.

Further, the processor 64 reads described instruction and is specifically used for：

On the position of the DMRS DMRS is sent to first communication node；

Or, the processor reads described instruction and is specifically used for：

The DMRS that first communication node is sent is received on the position of the DMRS.

Further, the processor 64 read described instruction also particularly useful for：

Whether needed according to first communication node by the 3rd signal deployment according to Physical Downlink Shared Channel The start-stop position of PDSCH determines the position of the DMRS.

The processor 64 read described instruction also particularly useful for：

The resource of the second communication node does not account for described in OFDM symbol start-stop position instruction in the time domain parameter of the resource During all symbols of all time slots in full Current resource, selected according to the OFDM symbol start-stop position of the time domain parameter of the resource Select the DMRS of the first communication node configuration OFDM symbol positions shared on all time slots in the current scheduling resource The time-domain position as the DMRS in whole or in part in putting；Wherein, the resource time domain parameter OFDM symbol When being more than N number of symbol after the OFDM symbol for the DMRS that initial position is configured in first communication node, second communication Node is invalid to the OFDM symbol for the DMRS that first communication node configures；The N is natural number；In the time domain of the resource When being less than M symbol before the OFDM symbol for the DMRS that the symbol final position of parameter is configured in first communication node, institute The OFDM symbol for stating the DMRS that the second communication node configures first communication node is invalid；The M is natural number.

Further,

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

In addition, the embodiment of the present invention also provides a kind of computer readable storage medium, computer executable instructions are stored with, The above-mentioned demodulated reference signal applied to the first communication node is realized when the computer executable instructions are executed by processor Collocation method.

In addition, the embodiment of the present invention also provides a kind of computer readable storage medium, computer executable instructions are stored with, The above-mentioned demodulated reference signal applied to the second communication node is realized when the computer executable instructions are executed by processor Collocation method.

In order in order to more embody the purpose of the present invention, on the basis of above-described embodiment, further illustrate.

Since the density of the DMRS resources occupied has larger impact to demodulation performance, to ensure certain performance, DMRS is close Degree cannot be too low, but DMRS is pure expense for transmitting data, considers the availability of frequency spectrum, DMRS density again cannot be too high, institute To need to weigh performance and expense in the case where time-frequency expense determines in pilot design, multilayer is answered in some way With TDM and FDM are multiplexed from time domain and frequency domain, and CDM is to be multiplexed using code point mode so as on similary running time-frequency resource Accommodate more layers, can also several ways combine and be multiplexed.

Assume that there is approximate channel response in same group of CDM difference time-frequency domains position since CDM estimates clocking requirement in receiving terminal, Some characteristics of wireless channel can influence the selection of multiplexing scheme, for example, applying code division multiplexing scheme (i.e. FD- on frequency domain , it is necessary to consider the channel frequency characteristic of practical application scene when CDM), such as frequency selective fading, generally, FD-CDM Span on frequency domain will try one's best small to be flexibly adapted to the channel that various frequencies select characteristic；Code division multiplexing scheme is applied in time domain , it is necessary to consider the channel time domain characteristic of practical application scene, such as channel coherency time, the influence of phase noise when (i.e. TD-CDM) Deng similarly, TD-CDM also will be as far as possible small or even under some high frequency scenes in the span of time domain, even if adjacent time domain symbol Phase noise difference is also very big between number, cannot use TD-CDM；In addition, CDM length is longer, same running time-frequency resource can be with The number of plies of receiving is more, is still, between each group code of CDM orthogonal, the space length between the longer each group code of CDM codes originally It is smaller, it is more easily influenced orthogonality be subject to noise and interference in practical application and becomes poorer, so the length of CDM can not be too It is long.

In addition there is the considerations of power aspect：When the DMRS of multilayer is placed in more than one time-domain symbol, the side of TDM Formula causes all layers to be distributed on different symbols, and the power being unfavorable between all layers borrows, can only be in a symbol Interlayer borrows mutually the maximization power utilization for reaching each symbol；But the interlayer in each symbol borrows mutually power Different symbols may be caused to have different capacity to promote ratio (compared with the data power of this layer), receiving terminal cannot be pellucidly complete Into demodulation；The pilot data power ratio for maximizing power utilization and stablizing preferably meets simultaneously, that is, all layer is led Frequency is preferably contained in a symbol.

In the pattern of the DMRS being described of the present invention, one antenna port of every layer of correspondence (antenna port) is compiled Number；The position that the number of plies and layer distributed is indicated by UE is numbered according to antenna port in actual schedule；Such as：For UE1 to 3 MU-MIMO scheduling is done, dispatches 8 layers altogether, wherein UE1 is 4 layers, and UE2,3 are respectively 2 layers；DMRS can be indicated by port numbering, Such as layer 1 is represented to layer 8 with port #P~port #P+7 respectively, wherein P is a predefined integer；For the end of UE1 instructions Slogan is #P~#P+3, and the port numbers for being UE2 instructions are #P+4~#P+5, and the port numbers for being UE3 instructions are #P+6~#P+7.

Specific embodiment 1

It is illustrated for the pattern of 8 layers of DMRS.

Fig. 7-1 is the collocation method of demodulated reference signal of the present invention in an OFDM symbol and in the frequency of a PRB The schematic diagram one of the pattern of 8 layers of DMRS in field width degree, as shown in Fig. 7-1, the pattern of 8 layers of DMRS is used 2 on frequency domain The multiplex mode of code division multiplexing (FD-CDM2) technology, one shares 6 adjacent 2 RE blocks in the bandwidth of a PRB, carries 4 groups DMRS is the CDM that length is 2 in every group.As shown in Fig. 7-1, wherein group 1 and group 2 occur twice, group 3 and group 4 occur one It is secondary, group 1 to 4 every groups of carryings of group, 2 layers of DMRS.

The pattern of DMRS in Fig. 7-1 can be described as：Frequency domain position of the group 1 in PRB, which deviates, is：0,1,8,9；Group 2 Frequency domain position in PRB, which deviates, is：2,3,10,11；Frequency domain position of the group 3 in PRB, which deviates, is：4,5；Group 4 is in PRB Frequency domain position deviates：6,7.

The relation of preferred group and its layer number represented is as follows：

Group 1：Layer 1, layer 5；

Group 2：Layer 2, layer 6；

Group 3：Layer 3, layer 7；

Group 4：Layer 4, layer 8.

The characteristics of correspondence scheme, is that layer 1, layer 2, layer 5, the expense of layer 6 are bigger than layer 3, layer 4, layer 7, layer 8, it is contemplated that estimate It is good to count effect, suitable for being scheduled to the UE of different quality channel circumstance；It, can be as far as possible more using the pattern of the DMRS when 8 layers discontented Ground and as far as possible equably occupy frequency domain resource, be conducive to improve DMRS performance；Additionally, it is contemplated that the situation of MU-MIMO scheduling, Adjacent layer number generally is easier to distribute to same UE, for example, two layers of identical time-frequency domain (time-frequency) position belongs to One UE sees that disturbed condition is different from the UE that belongs to for two layers positioned at different time-frequency locations in demodulation, the former Interference is the interlayer interference inside UE, and the interference of the latter is the interference between UE and other UE, if it is considered that different between UE Wave beam forming (beamforming) effect, then the interference between UE can be smaller.If distribution 6 layers, layer 1, layer 2, layer 5, Layer 6 occupies altogether 8 RE, and layer 3, layer 4 occupy altogether 4 RE, and every layer of average time frequency code domain resource is identical.

Additionally, it is preferred that the relation of layer number that represents with it of group can also be：

Group 1：Layer 1, layer 5；

Group 2：Layer 3, layer 7；

Group 3：Layer 2, layer 6；

Group 4：Layer 4, layer 8.

The characteristics of program, is：Layer 1, layer 3, layer 5, the expense of layer 7 are bigger than layer 2, layer 4, layer 6, layer 8, it is contemplated that estimation Effect is good, suitable for being scheduled to the UE of different quality channel circumstance；When being dispatched in view of MU-MIMO, each UE scheduling is adjacent Two layers, it can support discrepant two layers of robustness.

Further, the relation for the layer number that preferred group is represented with it can also be：

Group 1：Layer 1, layer 2；

Group 2：Layer 3, layer 4；

Group 3：Layer 5, layer 6；

Group 4：Layer 7, layer 8.

The characteristics of program：All layer heaps into as far as possible few RE, RE can be saved when the number of plies is less.Such as using When the pattern of the DMRS only dispatches 2 layers, the RE resources of group 1 are only taken up；When calling 4 layers, the resource of group 1 and group 2 is only taken up；It calls At 6 layers, occupancy group 1, group 2, the resource for organizing 3；The remaining resource without occupying can be also used for sending data, improve spectrum utilization Rate.

Fig. 7-2 is the collocation method of demodulated reference signal of the present invention in an OFDM symbol and in the frequency of a PRB The schematic diagram two of the pattern of 8 layers of DMRS in field width degree, as shown in Fig. 7-2, the pattern of 8 layers of DMRS is used 4 on frequency domain The multiplex mode of code division multiplexing (FD-CDM4), one shares 3 adjacent 4 RE blocks in the bandwidth of a PRB, carries 2 groups DMRS is the CDM that length is 4 in every group；As shown in Fig. 7-2, wherein twice, organizing 2 and occurring once occur in group 1, every group of carrying 4 Layer DMRS, the relation of preferred group and its layer number represented are as follows：

Group 1：Layer 1, layer 3, layer 5, layer 7；

Group 2：Layer 2, layer 4, layer 6, layer 8.

Group 1：Layer 1, layer 2, layer 3, layer 4；

Group 2：Layer 5, layer 6, layer 7, layer 8.

Group 1：Layer 1, layer 2, layer 5, layer 7；

Group 2：Layer 3, layer 4, layer 6, layer 8.

Fig. 7-3 is the collocation method of demodulated reference signal of the present invention in an OFDM symbol and in the frequency of a PRB The schematic diagram three of the pattern of 8 layers of DMRS in field width degree；As shown in Fig. 7-3, group 1 to organize 4 can also have different PRB bias internals and Spacing, Fig. 7-3 give two different patterns, wherein be still group 1, group 2 than group 3, group 4 occupy resources it is more；Group number with The mapping of level number also uses the rule of above-described embodiment one.

Pattern 1 in Fig. 7-3 can be described as：Frequency domain position of the group 1 in PRB, which deviates, is：0,1,6,7；Group 2 is in PRB Interior frequency domain position deviates：2,3,8,9；Frequency domain position of the group 3 in PRB, which deviates, is：4,5；The 4 frequency domain position in PRB of group Putting offset is：10、11.

Pattern 2 in Fig. 7-3 can be described as：Frequency domain position of the group 1 in PRB, which deviates, is：0,1,6,7；Group 2 is in PRB Interior frequency domain position deviates：4,5,10,11；Frequency domain position of the group 3 in PRB, which deviates, is：2,3；4 frequency domain in PRB of group Position offset is：8,9.

Each group is not limited in the deviation post of PRB in the pattern of above Fig. 7-1 and the pattern 1 of Fig. 7-3 and pattern 2 Value is stated, can also be that the value that 1 is subtracted with PRB frequency domain length subtracts above-mentioned deviant.Such as when the offset of group 1 is 0,1, When 6,7, PRB frequency domain length is 12, offset can also be replaced with 11- (0,1,6,7), i.e., and 11,10,5,4；Other corresponding groups It is also required to subtract corresponding value with 11, such as group 2 is replaced for 4,5,10,11 with 7,6,1,0；Need exist for explanation, the characteristic It describes suitable for the pattern frequency domain position of all DMRS of the present invention, repeats no more elsewhere.

In the pattern of the DMRS of Fig. 7-3, since group 1 is identical with the expense of group 2, group 3 is identical with the expense of group 4, more than In the description of the correspondence of group number and level number, group 1 and the position of group 2 can exchange, and group 3 and the position of group 4 can exchange, with Exemplified by first relation：

Group 1 (or group 2)：Layer 1, layer 5；

Group 2 (or group 1)：Layer 2, layer 6；

Group 3 (or group 4)：Layer 3, layer 7；

Group 4 (or group 3)：Layer 4, layer 8.

Specific embodiment 2

Illustrate for the frequency domain expansion of the pattern of 8 layers of DMRS.

When the number of plies of support is 8, when the PRB quantity of distribution is more than 1, different patterns may be employed in adjacent PRB.

Fig. 8-1 carries Density inhomogeneity for the collocation method of demodulated reference signal of the present invention in an OFDM symbol And the pattern of all layers of DMRS on more than 1 PRB schematic diagram one；As shown in Fig. 8-1, when the PRB quantity of distribution is big When 1, different patterns may be employed in adjacent PRB so that if the pattern of 8 layers of uneven DMRS in embodiment 1 is in bigger In the range of be uniform；Frequency is arranged in order group 1, group 2, group 3, group 4, group 1, group 2 from low to high such as in PRB#1, in phase Frequency is arranged in order group 3, group 4, group 1, group 2, group 3, group 4, i.e., the group number that adjacent PRB starts from low to high in adjacent PRB#2 It is the next of the endless form of the end group number of front PRB.

The advantages of program is when the PRB quantity of the resource of scheduling is the even number more than 1, and the resource that each layer occupies is equal It is even, it is contemplated that performance be also that each layer is uniform；When the PRB quantity of the resource of scheduling is the odd number more than 1, the quantity of PRB More, the expense difference of interlayer is smaller, it is contemplated that performance be also to tend to be uniform.

When the number of plies of support is 8, when the PRB quantity of distribution is more than 1, identical pattern may be employed in adjacent PRB.

Fig. 8-2 carries Density inhomogeneity for the collocation method of demodulated reference signal of the present invention in an OFDM symbol And the pattern of all layers of DMRS on more than 1 PRB schematic diagram two；As shown in Fig. 8-2, i.e., directly repeated in frequency domain, The difference of the DMRS expenses of interlayer is kept on the whole, advantage is the UE that can support differentially to dispatch different channels environment, It will give channel circumstance poor UE compared with the DMRS Layer assignments of robust.

It needs exist for illustrating, the pattern 1 and pattern 2 in Fig. 7-3 also support that the frequency domain on more than 1 PRB is direct It repeats, the expense for keeping interlayer DMRS is different.

Specific embodiment 3

It is illustrated for the pattern of 12 layers of DMRS.

All layers of DMRS is supported in one OFDM symbol, wherein occupying identical time-frequency domain resources per X layers, occupies frequency domain Continuous X subcarrier is code division multiplexing between X layers.One OFDM symbol includes point of Y unduplicated code division multiplexings Group, each grouping include X layers.

When the number of plies of support is 12, the value of [X, Y] is [4,3] or [6,2].

Fig. 9-1 is the collocation method of demodulated reference signal of the present invention in an OFDM symbol and in the frequency of a PRB The schematic diagram one of the pattern of 12 layers of DMRS in field width degree, as shown in fig. 9-1, Fig. 9-1 are the value of [X, Y] showing for [4,3] Example, the pattern of 12 layers of DMRS use the multiplex mode for having 4 code division multiplexings (FD-CDM4) on frequency domain, the bandwidth of a PRB Interior one shares 3 adjacent 4 RE blocks, carries 3 groups of DMRS, and every group interior using length as 4 CDM 4 layers of DMRS of multiplexing, every group of appearance Once.

The pattern of DMRS in Fig. 9-1 can be described as：Frequency domain position of the group 1 in PRB, which deviates, is：0,1,2,3；Group 2 Frequency domain position in PRB, which deviates, is：4,5,6,7；Frequency domain position of the group 3 in PRB, which deviates, is：8,9,10,11.

Fig. 9-2 is the collocation method of demodulated reference signal of the present invention in an OFDM symbol and in the frequency of a PRB The schematic diagram two of the pattern of 12 layers of DMRS in field width degree, as shown in Fig. 9-2, Fig. 9-2 is the value of [X, Y] showing for [6,2] Example, the pattern of 12 layers of DMRS use the multiplex mode for having 4 code division multiplexings (FD-CDM4) on frequency domain, are also classified into 3 groups, group It is interior to be multiplexed 4 layers of DMRS in a manner of the CDM that length is 4, but 4 RE in every group are not that frequency domain is adjacent, but two are adjacent At intervals of 4 RE between RE blocks.

The pattern of DMRS in Fig. 9-2 can be described as：Frequency domain position of the group 1 in PRB, which deviates, is：0,1,6,7；Group 2 Frequency domain position in PRB, which deviates, is：2,3,8,9；Frequency domain position of the group 3 in PRB, which deviates, is：4,5,10,11.

Group 1：Layer 1, layer 4, layer 7, layer 10；

Group 2：Layer 2, layer 5, layer 8, layer 11；

Group 3：Layer 3, layer 6, layer 9, layer 12.

Group 1：Layer 1, layer 2, layer 3, layer 4；

Group 2：Layer 5, layer 6, layer 7, layer 8；

Group 3：Layer 9, layer 10, layer 11, layer 12.

Group 1：Layer 1, layer 2, layer 7, layer 10

Group 2：Layer 3, layer 4, layer 8, layer 11

Group 3：Layer 5, layer 6, layer 9, layer 12.

Using the pattern of the DMRS during in view of the number of plies less, frequency domain centre position can be first occupied, preferred group and its generation The relation of the layer number of table can also be：

Group 1：Layer 2, layer 5, layer 8, layer 11；

Group 2：Layer 1, layer 4, layer 7, layer 10；

Group 3：Layer 3, layer 6, layer 9, layer 12；

Group 1：Layer 5, layer 6, layer 7, layer 8；

Group 2：Layer 1, layer 2, layer 3, layer 4；

Group 3：Layer 9, layer 10, layer 11, layer 12.

Group 1：Layer 3, layer 4, layer 8, layer 11；

Group 2：Layer 1, layer 2, layer 7, layer 10；

Group 3：Layer 5, layer 6, layer 9, layer 12.

Group 1：Layer 1, layer 2, layer 8, layer 11；

Group 2：Layer 5, layer 6, layer 7, layer 10；

Group 3：Layer 3, layer 4, layer 9, layer 12.

Group 1：Layer 3, layer 4, layer 7, layer 10；

Group 2：Layer 1, layer 2, layer 9, layer 12；

Group 3：Layer 5, layer 6, layer 8, layer 11.

Specific embodiment 4

For the explanation of extension of single symbol pattern in time domain of 8 layers and 12 layers of DMRS.

To adapt to poor wireless channel environment, it is necessary to support the DMRS of density bigger；When the number of plies is larger, before divided Analysis, TDM is not a kind of good interlayer multiplex mode, had better accommodate all layers in an OFDM symbol, then expand To the mode of multiple OFDM symbols.

Time slot (slot) includes the OFDM symbol (can abbreviation symbol) of multiple time domains, such as a time slot in NR (slot) 7 or 14 OFDM symbols may be included；In NR it is also possible in the structure of miniature time slot (mini slot) Also comprising multiple OFDM symbols, wherein being also required to carry DMRS；The DMRS structures for time slot (slot) of this programme also can use In miniature time slot (mini slot).

In a time slot (slot) when there is multiple OFDM symbols carrying multilayer DMRS, the position of multiple OFDM symbols with Whether time slot (slot) is that self-contained (self-contained) structure is related, and self-contained structure refers to the forward of time slot (slot) The data that part is sent it is expected partly meeting with a response rearward in the time slot (slot), such as ACK/NACK, therefore all The time domain of DMRS should be as far as possible forward, is only possible to complete data demodulation as early as possible；Rather than self-contained structure refers in time slot (slot) The data of transmission do not expect to meet with a response in this time slot (slot), therefore DMRS can be in the larger time in time slot (slot) It is distributed in span, when demodulation can refer to all DMRS positions and obtain better demodulation performance.

Between OFDM symbol of the pattern support of DMRS in a time slot (slot) or in multiple time slots (slot) The frequency domain saltus step of certain rule is carried out between OFDM symbol, saltus step is in units of the group of code division multiplexing.

According to the difference of the group number of code division multiplexing, frequency domain hop mode has different sequences, the number of hopping sequences selection And not homotactic appearance order can be pre-defined or configurable, sphere of action can be each time slot (slot) OFDM symbol of all DMRS in is cyclically joined together using a group hopping sequence or multiple time slots (slot) One group hopping sequence is cyclically used to the OFDM symbol of all DMRS.

When the number of plies that the pattern of DMRS is supported is 8, and the value of [X, Y] is [2,4], one shares 4 groups, a PRB There are following sequence in interior 4 groups of positions on frequency domain：

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2；Group 3；Group 4；Group 1；Group 2；Group 3].

Figure 10-1 bags in a manner of FD-CDM2 in an OFDM symbol for the collocation method of demodulated reference signal of the present invention It is contained in the schematic diagram one of the pattern of most 8 layers of DMRS in multiple OFDM symbols；As shown in Figure 10-1, the pattern of the DMRS is inherited The characteristic of the pattern of 8 layers of DMRS being placed in an OFDM symbol of Fig. 7-1 in specific embodiment 1, in the pattern of the DMRS Although each OFDM symbol includes all 8 layers of DMRS, each the density of each layer DMRS in OFDM symbol is uneven 's；Density ratio group 3, the group 4 of group 1 and group 2 in first OFDM symbol (#1) are twice, in second OFDM symbol (#2) 4 density ratio groups 1 of group 3 and group, group 2 are twice, and density ratio group 2, the group 3 of the group 1 in the 3rd OFDM symbol (#3) and group 4 are big by one Times, 3 density ratio groups 1 of group 2 and group, group 4 in the 4th OFDM symbol (#4) are twice.

The pattern of most 8 layers of DMRS in multiple OFDM symbols of Figure 10-1 can be described as：

The OFDM symbol #1 of DMRS：Frequency domain position of the group 1 in PRB, which deviates, is：0,1,8,9；2 frequency domain in PRB of group Position offset is：2,3,10,11；Frequency domain position of the group 3 in PRB, which deviates, is：4,5；Frequency domain position offset of the group 4 in PRB For：6,7.

The OFDM symbol #2 of DMRS：Frequency domain position of the group 1 in PRB, which deviates, is：4,5；2 frequency domain position in PRB of group It deviates and is：6,7；Frequency domain position of the group 3 in PRB, which deviates, is：0,1,8,9；Frequency domain position of the group 4 in PRB, which deviates, is：2,3, 10,11.

The OFDM symbol #3 of DMRS：Frequency domain position of the group 1 in PRB, which deviates, is：2,3,10,11；2 frequency in PRB of group Domain position offset is：4,5；Frequency domain position of the group 3 in PRB, which deviates, is：6,7；Frequency domain position of the group 4 in PRB, which deviates, is：0, 1,8,9.

The OFDM symbol #4 of DMRS：Frequency domain position of the group 1 in PRB, which deviates, is：6,7；2 frequency domain position in PRB of group It deviates and is：0,1,8,9；Frequency domain position of the group 3 in PRB, which deviates, is：2,3,10,11；Frequency domain position offset of the group 4 in PRB For：4,5.

When the number of plies that the pattern of DMRS is supported is 12, and the value of [X, Y] is [4,3], one shares 3 groups, a PRB There are following sequence in interior 3 groups of positions on frequency domain：

Sequence 1：[group 1, group 2, group 3, group 1, group 2, group 3]；

Sequence 2：[group 2, group 3, group 1, group 2, group 3, group 1]；

Sequence 3：[group 3, group 1, group 2, group 3, group 1, group 2].

Figure 10-2 bags in a manner of FD-CDM2 in an OFDM symbol for the collocation method of demodulated reference signal of the present invention It is contained in the schematic diagram two of the pattern of most 8 layers of DMRS in multiple OFDM symbols；The pattern of the DMRS is inherited in specific embodiment 1 The characteristic of the pattern of DMRS in Fig. 7-2, although each OFDM symbol includes all 8 layers of DMRS, each OFDM symbol The density of interior each layer DMRS is non-uniform；The density ratio group 2 of first and third OFDM symbol (#1, #3) group 1 is twice, second, The density ratio group 1 of four OFDM symbols (#2, #4) group 2 is twice.

The pattern of most 8 layers of DMRS in multiple OFDM symbols of Figure 10-2 can be described as：

The OFDM symbol #1 and #3 of DMRS：Frequency domain position of the group 1 in PRB, which deviates, is：0,1,2,3,8,9,10,11；Group 2 Frequency domain position in PRB, which deviates, is：4,5,6,7.

The OFDM symbol #2 and #4 of DMRS：Frequency domain position of the group 1 in PRB, which deviates, is：4,5,6,7；Group 2 is in PRB Frequency domain position deviates：0,1,2,3,8,9,10,11.

Figure 10-3 bags in a manner of FD-CDM2 in an OFDM symbol for the collocation method of demodulated reference signal of the present invention It is contained in the schematic diagram three of the pattern of most 8 layers of DMRS in multiple OFDM symbols；The pattern of the DMRS is inherited in specific embodiment 3 The characteristic of the pattern of DMRS in Fig. 9-1.

The pattern of most 8 layers of DMRS in multiple OFDM symbols in Figure 10-3 can be described as：

The OFDM symbol #1 of DMRS：Frequency domain position of the group 1 in PRB, which deviates, is：0,1,2,3；2 frequency domain in PRB of group Position offset is：4,5,6,7；Frequency domain position of the group 3 in PRB, which deviates, is：8,9,10,11.

The OFDM symbol #2 of DMRS：Frequency domain position of the group 1 in PRB, which deviates, is：4,5,6,7；2 frequency domain in PRB of group Position offset is：8,9,10,11；Frequency domain position of the group 3 in PRB, which deviates, is：0,1,2,3.

The OFDM symbol #3 of DMRS：Frequency domain position of the group 1 in PRB, which deviates, is：8,9,10,11；2 frequency in PRB of group Domain position offset is：0,1,2,3；Frequency domain position of the group 3 in PRB, which deviates, is：4,5,6,7.

The OFDM symbol #4 of DMRS：Frequency domain position of the group 1 in PRB, which deviates, is：0,1,2,3；2 frequency domain in PRB of group Position offset is：4,5,6,7；Frequency domain position of the group 3 in PRB, which deviates, is：8,9,10,11.

When the number of plies that the pattern of DMRS is supported be 8 and when the value of [X, Y] be [4,2] or ought the number of plies of support be 12 And the value of [X, Y] be [6,2] when, one shares 2 groups, and there are following sequence in 2 groups of positions on frequency domain in a PRB：

Sequence 1：[group 1, group 2, group 1]；

Sequence 2：[group 2, group 1, group 2].

The number for the layer that specific each group includes refer to the corresponding embodiment of front in more than figure.

It needs exist for illustrating, the number of the OFDM symbol of DMRS is only to use in a chronomere in the present invention In the number for the symbol for sending DMRS, the OFDM symbol number in time slot (slot) is not implied that, the chronomere can be with It is 1 either multiple time slots (slot) or radio frames or subframe.

Explanation is needed exist for, the OFDM symbol number of adjacent DMRS in of the invention, such as the OFDM symbol #1 of DMRS With #2 can be physically contiguous two OFDM symbols or discontinuous；If the OFDM symbol #1 and #2 of DMRS Continuously, then the OFDM symbol #3 and #4 of DMRS is also likely to be continuous.

It needs exist for illustrating, the OFDM symbol # quantity of DMRS is simply illustrated in the present invention, can essentially be more than 4 It can also be fewer than 4；Such as the scene for low translational speed, low data rate, it may only need to configure 1 or 2 The OFDM symbol of DMRS；For high speed, high data rate scene, it may be necessary to configure the OFDM symbol or 4 of 3 DMRS The OFDM symbol of the OFDM symbol of a DMRS, even greater than 4 DMRS；It can be according to this if more than the OFDM symbol of 4 DMRS The pattern Xun Huan of invention description；For example, the unduplicated 4 kinds of patterns included in Figure 10-1, if there is the OFDM of the 5th DMRS Symbol just uses the pattern identical with the OFDM symbol #1 of DMRS；Figure 10-3 includes 3 unduplicated patterns, if there is the 5th The OFDM symbol of a DMRS just uses the pattern identical with the OFDM symbol #2 of DMRS.

The OFDM symbol # of DMRS is numbered and the correspondence of actual OFDM symbol can be：

OFDM symbol #1~#4 of DMRS corresponds to the OFDM symbol 2,3,9,10 in a time slot (slot)；

OFDM symbol #1~#4 of DMRS corresponds to the OFDM symbol 2,5,8,11 of a time slot (slot)；

OFDM symbol #1~#4 of DMRS corresponds to the OFDM symbol 3,6,9,12 in a time slot (slot).

Need exist for explanation, in the present invention above-mentioned OFDM symbol number be since 0, if since 1, on Quantity is stated plus 1.

If smaller than 4 using the OFDM symbol quantity of DMRS, it is not necessarily intended to select the correspondence of above-mentioned OFDM symbol in order Relation can select to need the combination of quantity as needed；Such as wherein 2 are only selected, the OFDM symbol # of DMRS can be corresponded to The OFDM symbol #1, #4 of the OFDM symbol #1, #3 or DMRS of 1, #2 or DMRS or without DMRS OFDM symbol #1 any other two DMRS OFDM symbol combination.

Can be with frequency hopping between multiple time slots (slot), i.e., the pattern of the OFDM symbol of above-mentioned different DMRS can be multiple It is cycled between the OFDM symbol of the DMRS of time slot (slot)；For example, work as the time domain for the DMRS that each time slot (slot) needs to configure Density is 2 OFDM symbols, and the OFDM symbol #1, #2 of DMRS is used for the time slot (slot) of front in above-mentioned Figure 10-1, DMRS's OFDM symbol #3, #4 are used for the time slot (slot) behind adjacent；Circular order during cycling is not limited to above-mentioned DMRS's OFDM symbol number order, for example, it is also possible to configure the time slot (slot) of front using the OFDM symbol # of the DMRS of Figure 10-1 1, #3, time slot (slot) below using the DMRS of Figure 10-1 OFDM symbol #2, #4.

When adjacent DMRS OFDM symbol physically apart from it is close or even adjacent when, corresponding channel response is possible to The multiplex mode of the code division multiplexing (TD-CDM) in time domain may be employed to reduce the code division multiplexing (FD- on frequency domain in difference very little CDM span).

Figure 10-4 bags in a manner of FD-CDM2 in an OFDM symbol for the collocation method of demodulated reference signal of the present invention It is contained in the schematic diagram four of the pattern of most 8 layers of DMRS in multiple OFDM symbols；As shown in Figure 10-4, which is for Figure 10-2 Employ the pattern of time division multiplexing (CDM)；This pattern is adjacent, such as the OFDM of DMRS more suitable for the symbol of TD-CDM Symbol #1 and #2 are adjacent, and #3 and #4 are adjacent；Although but also it is not excluded for non-conterminous but wireless channel time phase The parameter of pass shows that difference is little, can be TD-CDM；The advantage is that can better adapt to frequency-selective channel.

Specific embodiment 5

The explanation of the relation of the pattern of start-stop position and DMRS for PDSCH.

Base station configures the pattern of DMRS for UE by high-level signaling, such as RRC signaling, the time-domain position including DMRS, In one time slot (slot) unit or across the distribution in the unit of multiple time slots (solot)；The time domain density of DMRS and position It can be related with the factors such as ability of the translational speed of UE, working frequency range, UE.

If UE can support self-contained structure, the pattern of above-mentioned DMRS includes the position of the pattern of normal DMRS Put and may further include self-contained structure DMRS pattern position；The pattern of the normal DMRS is to be different from For the pattern of the DMRS of self-contained structure, i.e., the pattern of the DMRS of non-self-contained structure.

The last one OFDM symbol position of the pattern of the DMRS of the self-contained structure is generally than normal DMRS's The position of the last one OFDM symbol of pattern is forward, so that receiving terminal completes the channel estimation of DMRS as early as possible.

For supporting the UE of self-contained structure, base station includes at least one by parameter of the high-level signaling for the UE DMRS configured Set supports the DMRS parameters of self-contained structure.

Base station is by the resource information that physical layer signaling is UE configurations, including at least the phase of time domain, frequency domain and spatial domain Related parameter and whether be self-contained structure information.

Wherein, whether described is that the information of self-contained structure may be implicit instruction, i.e., by configuring HARQ feedback Position implicit indication, when require feedback at the time of be this scheduling resource those slots in, then require feedback at the time of institute Time slot be self-contained structure, be otherwise non-self-contained structure.

Whether the time domain starting of the resource of physical layer configurations and final position are self-contained structure and high-rise configuration Time domain parameter synthesis determines the time-domain position of DMRS in the scope of resource of this scheduling.

Specifically, according to whether determine that the DMRS of high-rise configuration exists with the high-rise time domain parameter configured for self-contained structure Shared OFDM symbol position on all time slots of current scheduling, further according to the time-domain OFDM symbol grade start-stop location determination of resource Belong to the time-domain OFDM symbol position of the DMRS of the UE in this scheduling resource.

Specifically, when the resource of the time-domain OFDM symbol grade start-stop position instruction of the resource UE does not take this scheduling During all OFDM symbols of all time slots, the high-rise DMRS configured of base station is selected current according to OFDM symbol grade start-stop position It is some or all of in shared OFDM symbol position on all time slots of scheduling.

For example, it is exemplified below：

Base station configures the time domain pattern of the DMRS of self-contained structure and non-self-contained structure by high-level signaling for UE, including The density of time domain and position；DMRS patterns are configured with following scheme：

Scheme 1：Configuration density, position is prespecified or whether position is with self-contained related, regardless of whether self-contained The time-domain OFDM symbol position of structure DMRS will be prespecified, and RRC allocation positions are not required.

Configure #1：1 OFDM symbol in each time slot (slot)；

Configure #2：2 OFDM symbols in each time slot (slot)；

Configure #3：3 OFDM symbols in each time slot (slot)；

Configure #4：4 OFDM symbols in each time slot (slot)；

Configure #5：1/2 OFDM symbol in each time slot (slot)；

OFDM symbol in each time slot (slot) less than 1 refers to the OFDM symbols of the shared DMRS of multiple time slots (slot) Number；Be configured as described above 1/2 OFDM symbol in each time slot (slot) of #5 refer in each two time slot (slot) only have 1 when Gap (slot) has the OFDM symbol of DMRS.

Time-domain position predefines, i.e., each time slot (slot) determines DMRS's for sending the OFDM symbol number of DMRS The position of OFDM symbol：

Each time slot (slot) has 1 OFDM symbol to send DMRS, then positioned at OFDM symbol 2；

Each time slot (slot) has 2 OFDM symbols to send DMRS, then positioned at OFDM symbol 2,8；

Each time slot (slot) has 3 OFDM symbols to send DMRS, then positioned at OFDM symbol 2,5,8；

Each time slot (slot) has 4 OFDM symbols to send DMRS, then positioned at OFDM symbol 2,5,8,11.

The predetermined another method of time-domain position is respectively self-contained structure and non-self-contained structure regulation DMRS OFDM symbol position：

Self-contained structure：

Each time slot (slot) has 2 OFDM symbols to send DMRS, then positioned at OFDM symbol 2,3；

Each time slot (slot) has 3 OFDM symbols to send DMRS, then positioned at OFDM symbol 2,3,5；

Each time slot (slot) has 4 OFDM symbols to send DMRS, then positioned at OFDM symbol 2,3,5,6.

Non- self-contained structure：

The position of above-mentioned OFDM symbol is served only for illustrating, it is not limited to these values.

Scheme 2：

High-level signaling instruction includes the time domain configuration pattern of density and the time-domain OFDM symbol position of corresponding DMRS, to certainly Comprising having different meanings with non-self-contained structure.

Configure #1：1 OFDM symbol in each time slot (slot) is located at OFDM symbol 2 in self-contained structure, non-self-contained It is located at OFDM symbol 2 in structure；

Configure #2：2 OFDM symbols in each time slot (slot), are located at OFDM symbol 2,3 in self-contained structure, non-from wrapping Containing in structure be located at OFDM symbol 2,8；

Configure #2-1：2 OFDM symbols in each time slot (slot), are located at OFDM symbol 2,5 in self-contained structure, it is non-from Comprising in structure be located at OFDM symbol 2,8；

Configure #3：3 OFDM symbols in each time slot (slot), are located at OFDM symbol 2 in self-contained structure, 3,5, it is non-from Comprising in structure be located at OFDM symbol 2,5,8；

Configure #3-1：3 OFDM symbols in each time slot (slot), are located at OFDM symbol 2 in self-contained structure, and 3,6, it is non- It is located at OFDM symbol 2,6,10 in self-contained structure；

Configure #3-2：Most 3 OFDM symbols in each time slot (slot) are located at OFDM symbol 3,6 in self-contained structure, It is located at OFDM symbol 5,8,11 in non-self-contained structure；

Configure #4：4 OFDM symbols in each time slot (slot), are located at OFDM symbol 2 in self-contained structure, and 3,5,6, it is non- It is located at OFDM symbol 2,5,8,11 in self-contained structure；

Configure #4-1：4 OFDM symbols in each time slot (slot), are located at OFDM symbol 2 in self-contained structure, and 3,5,6, It is located at OFDM symbol 2,5,9,12 in non-self-contained structure；

Configure #5：1/2 OFDM symbol in each time slot (slot), only half slot is included in the slot distributed The OFDM symbol of DMRS, first slot are included, and second slot does not include, and the 3rd slot is included, and so on, it is self-contained It is located at OFDM symbol 2 in structure, is located at OFDM symbol 2 in non-self-contained structure.

Base station is by physical layer signaling, such as DCI, and the resource for carrying as UE distribution (share by the physical layer of PDSCH or NR Channel), relevant parameter including time domain and frequency domain and spatial domain and whether be self-contained structure information.

Whether be wherein that the information of self-contained structure may be implicit instruction, i.e., it is hidden by configuring the position of HARQ feedback It is this time slot at the time of feedback is required, then the time slot is self-contained structure, is otherwise non-self-contained structure containing instruction.

UE according at least to resource time domain start-stop position, whether be the information of self-contained structure and the DMRS of high-rise configuration Parameter determines the position of the DMRS in the scope of resource of this scheduling.

Figure 11 be the collocation method of demodulated reference signal of the present invention base station by RRC signaling be UE configure DMRS pattern Schematic diagram, as shown in figure 11, shown region be a time slot (slot), including 14 OFDM symbols, base station passes through RRC signaling configures the time domain pattern of DMRS for UE；Such as it is configured with the configuration #4 of scheme 2 in above-mentioned specific embodiment 5：When each 4 OFDM symbols in gap (slot), are located at OFDM symbol 2 in self-contained structure, and 3,5,6, it is located at OFDM in non-self-contained structure Symbol 2,5,8,11；Then in Fig. 5 DMRS OFDM symbol #1, #2, #3, #4, represented in self-contained structure and non-self-contained structure Different OFDM symbols.

For example, certain scheduling base station informs that the time domain start stop bit of the resource of UE scheduling is set to 2 to 13, is non-from bag by DCI Containing structure, then UE judges that the position of the DMRS of this scheduling is OFDM symbol 2,5,8,11；

Another secondary scheduling base station informs that the resource time domain start stop bit of UE scheduling is set to 2 to 13, self-contained structure by DCI, Then UE judges that the position of the DMRS of this scheduling is OFDM symbol 2,3,5,6；

Another secondary scheduling base station informs that the resource time domain start stop bit of UE scheduling is set to 5 to 13, non-self-contained knot by DCI Structure, then UE judge that the position of DMRS of this scheduling is OFDM symbol 5,8,11；

Another secondary scheduling base station informs that the resource time domain start stop bit of UE scheduling is set to 5 to 13, self-contained structure by DCI, Then UE judges that the position of the DMRS of this scheduling is OFDM symbol 5,6；

Another secondary scheduling base station informs that the resource time domain start stop bit of UE scheduling is set to 4 to 8, non-self-contained structure by DCI, Then UE judges that the position of the DMRS of this scheduling is OFDM symbol 5,8；

Another secondary scheduling base station informs that the resource time domain start stop bit of UE scheduling is set to 4 to 8, self-contained structure by DCI, then UE judges that the position of the DMRS of this scheduling is OFDM symbol 3,5,6；

The principle that above-mentioned UE judges is as the OFDM of the DMRS in the DMRS of RRC configurations in the scope of resource currently distributed Symbol is effective DMRS for UE, and the OFDM symbol of the DMRS beyond the scope of resource distributed for the UE, which cannot It is considered the OFDM symbol of the DMRS for UE distribution.

Mentioned above principle can extend further to：When the time-domain symbol grade initial position of resource is in some high level configuration Being more than N number of OFDM symbol after the OFDM symbol of DMRS, then the OFDM symbol of the DMRS of the high-rise configuration is invalid to the UE, The N is predefined value or is worth for that can match somebody with somebody；When the time-domain symbol grade final position of resource is some high-rise DMRS's configured It is less than M OFDM symbol before OFDM symbol, then the OFDM symbol of the DMRS of the high-rise configuration is invalid to the UE, the M For predefined value or for value can be matched somebody with somebody；When M and N all values are 0, then it is above-mentioned several citings, M is exemplified below, N is The situation of other values.

Work as M=1, during N=1, base station by DCI inform resource time domain start stop bit that UE is dispatched be set to 4 to 8, it is non-self-contained Structure, first UE judge this scheduling DMRS position be OFDM symbol 2,5,8,11 whether apart from resource initial position 4 it Preceding to be more than N=1 OFDM symbol, wherein OFDM symbol 2 is before the position 4 at 2 OFDM symbols, more than N, therefore OFDM symbol 2 be not not to be more than N=1 OFDM symbol before resource initial position 4 to the OFDM symbol of the DMRS of the UE, 5,8,11 Number；Then, UE judges whether the OFDM symbol 5,8,11 of remaining DMRS is more than M=1 after resource final position 8 OFDM symbol, it is clear that 11 distances are more than M, so OFDM symbol 11 is not to the OFDM symbol of the DMRS of the UE；Finally it is judged as OFDM symbol 5,8 is the OFDM symbol of the DMRS of the UE.

Work as M=2, N=2, base station informs that the resource time domain start stop bit that UE is dispatched is set to 4 to 8, non-self-contained knot by DCI Structure, first UE judge that the position of the DMRS of this scheduling is OFDM symbol 2,5,8,11 whether before resource initial position 4 More than N=2 OFDM symbol, wherein OFDM symbol 2 are at 2 OFDM symbols in the front of position 4, equal to N, therefore OFDM symbol 2 It is not to be more than N=2 OFDM symbol before resource initial position 4 to the OFDM symbol of the DMRS of the UE, 5,8,11； Then, UE judges whether the OFDM symbol 2,5,8,11 of remaining DMRS is more than M=2 after resource final position 8 OFDM symbol, it is clear that 11 distances are more than M, so OFDM symbol 11 is not to the OFDM symbol of the DMRS of the UE；Finally it is judged as OFDM symbol 2,5,8 is the OFDM symbol of the DMRS of the UE.

Specific embodiment 6

CDM-4 groups number in PRB is the explanation of non-integral multiple receiving terminal (UE) processing method.

Figure 12-1 is the figure that 8 layers of DMRS is accommodated in an OFDM symbol of the collocation method of demodulated reference signal of the present invention Sample schematic diagram one, as shown in Figure 12-1, using FD-CDM4 multiplex modes, all subcarrier in frequency domain are divided into two groups, and every group comprising not The adjacent R E blocks two-by-two of adjacent 3 are spaced 2 RE in group between the non-conterminous E blocks of adjacent R two-by-two.

Figure 12-2 is the figure that 8 layers of DMRS is accommodated in an OFDM symbol of the collocation method of demodulated reference signal of the present invention Sample schematic diagram two, as shown in fig. 12-2, using FD-CDM4 multiplex modes, all subcarrier in frequency domain are divided into two groups, and every group comprising not 6 RE of adjacent pectination distribution, every 2 RE intervals, 1 RE in group.

Both the above pattern all there are it is such the problem of, i.e. nonoverlapping FD-CDM4 groupings number in 1 PRB is not Integer, in Figure 12-1 and 12-2, bold box 1 is the scope of the FD-CDM4 of group 1, and the RE of the group 1 outside the frame is less than 4, Normal CDM-4 demodulation cannot be done.

Here a solution is provided：The RE of receiving terminal multiplexing group inside points DMRS, it is complete to form one CDM-4 is combined, you can estimates the value on extra RE positions；By taking Figure 12-1 as an example, RE#1, #2, #5, #6 can form one CDM-4 groups, the RE that RE#9, #10 can not matched in this PRB can then be multiplexed RE#5, #6, by RE#9, #10, #5, #6 It joins together to do CDM-4 estimations.

When the PRB quantity of distribution is the even number more than 1, RE#9, #10 can be with the RE#1 of adjacent PRB, and #2, which combines, to be done CDM-4 estimates.

When distribution PRB quantity for odd number more than 1 when, the last one PRB still can remaining two need specially treated DMRS RE, other RE can be formed by way of across PRB every 4 with group DMRS RE be CDM-4 estimation, it is necessary to The group that the RE of 2 DMRS of specially treated can be multiplexed two RE formation CDM-4 of the same group DMRS adjacent with them is estimated Meter.

Figure 12-3 is the figure that 8 layers of DMRS is accommodated in an OFDM symbol of the collocation method of demodulated reference signal of the present invention Sample schematic diagram three；As shown in Figure 12-3, bold box 1 is the CDM-4 combinations inside PRB, and bold box 2 is the CDM-4 groups across PRB It closes, bold box 3 is to be multiplexed the CDM-4 combinations formed after two RE.

Preferably, to improve the accuracy of DMRS estimations, as shown in the dotted line frame in Figure 12-3, to normal non-repetitive Multiple combinations of CDM-4 divide the group of CDM-4 again, can provide the DMRS estimates of more points, it is contemplated that can improve DMRS's Estimate performance.

That is, during PRB bindings (PRB bundling), the CDM groups of DMRS (including OCC cyclic shift and its The method of its CDM) PRB can be crossed over, the RE of adjacent PRB forms one group of CDM.

When the CDM groups for being not enough to support integer DMRS in the PRB of configuration, receiving terminal can be by the RE of the DMRS of non-integer The part RE of adjacent DMRS groups forms CDM groups with inside its PRB.

It can be obtained according to above-mentioned several specific embodiments：

The DMRS of the high-rise configuration in base station is the angle definition that UE is given from whole resources, in actual schedule if UE only takes up part time-domain resource, it is possible to It is not necessary to send the DMRS of some OFDM symbols, such base station for it To more power more be sent into DMRS for other UE；UE is also not necessarily to understand apart from the far DMRS's of oneself data OFDM symbol.

In addition, compared with the discontinuous code division multiplexing of frequency domain, the continuous code division multiplexing of frequency domain proposed by the present invention, code point is again Span is small, can better adapt to the frequency selective fading of channel；Allow in an OFDM symbol every layer in the pattern of part The frequency domain resource of occupancy can be unbalanced, it is possible to implement differentially dispatches the UE of different channels environment.

It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program Product.Therefore, the shape of the embodiment in terms of hardware embodiment, software implementation or combination software and hardware can be used in the present invention Formula.Moreover, the present invention can be used can use storage in one or more computers for wherein including computer usable program code The form for the computer program product that medium is implemented on (including but not limited to magnetic disk storage and optical memory etc.).

The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.

These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or The function of being specified in multiple boxes.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps is performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a box or multiple boxes.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims

1. a kind of collocation method of demodulated reference signal, which is characterized in that the described method includes：

First communication node configures at least one first kind parameter by the first signaling for the second communication node, and passes through the second letter It makes and distributes the second class parameter for second communication node, joined according to the first kind parameter, the second class parameter and demodulation The pattern for examining signal determines the position of the demodulated reference signal；

Or, first communication node by the second signaling for the second communication node distribute the second class parameter, according to second class join The pattern of number and demodulated reference signal determines the position of the demodulated reference signal.

2. according to the method described in claim 1, it is characterized in that, the first kind parameter includes the first of demodulated reference signal Time domain parameter；The second class parameter includes：Demodulated reference signal parameter and/or resource configuration parameter；

The demodulated reference signal parameter include it is following at least one of：Second time domain parameter of demodulated reference signal, demodulation The frequency domain parameter of reference signal, the antenna port parameter of demodulated reference signal, demodulated reference signal code division multiplexing parameter；

The resource configuration parameter include it is following at least one of：The time domain parameter of resource, the frequency domain parameter of resource, resource institute Total number of plies of multi-user's multiple-input, multiple-output group where the number of plies that accounts for, resource；

The pattern of the demodulated reference signal is used to indicate the occupied time-frequency domain position of every layer of demodulated reference signal and code Divide the type and/or length of multiplexing.

3. according to the method described in claim 1, it is characterized in that, first signaling includes high-level signaling, the high-rise letter Order includes radio resource control signaling；Second signaling includes physical layer signaling, and the physical layer signaling includes downlink Control information signaling or physical layer control channel signaling.

4. according to the method described in claim 1, it is characterized in that, the method further includes：

First communication node sends the demodulation on the position of the demodulated reference signal to second communication node Reference signal；Or, first communication node receives the second communication node hair on the position of the demodulated reference signal The demodulated reference signal sent.

5. according to the method described in claim 1, it is characterized in that, the method further includes：

Whether first communication node needs to be shared according to physical down by the second communication node described in the 3rd signal deployment The start-stop position of channel determines the position of the demodulated reference signal.

6. according to the method described in claim 2, it is characterized in that, described join according to the first kind parameter, second class The pattern of number and demodulated reference signal determines the position of the demodulated reference signal, including：

First time domain parameter of the demodulated reference signal in the first kind parameter, resource in the second class parameter Time domain parameter determines the time-domain position of the demodulated reference signal；Or the demodulated reference signal in the first kind parameter In first time domain parameter, the second time domain parameter of demodulated reference signal in the second class parameter, the second class parameter The time domain parameter of resource determines the time-domain position of the demodulated reference signal；

The antenna port parameter of demodulated reference signal in the second class parameter, the code division multiplexing of demodulated reference signal At least one in total number of plies of multi-user's multiple-input, multiple-output group where the number of plies, resource shared by parameter, resource determines the solution Adjust the spatial domain position of reference signal and code domain position；

According to the time-domain position of the demodulated reference signal, the frequency domain position of the demodulated reference signal, demodulation reference letter Number spatial domain position, the code domain position of the demodulated reference signal and the pattern of the demodulated reference signal determine it is described demodulation ginseng Examine the position of signal.

7. according to the method described in claim 6, it is characterized in that, second communication node is the logical of the self-contained structure of support When believing node, the first kind parameter further includes the first self-contained structural parameters, and the resource configuration parameter further includes second certainly Include structural parameters；

The first self-contained structural parameters are used to indicate the time-domain position of the demodulated reference signal of self-contained structure；Described second Self-contained structural parameters are used to indicate whether the resource for notifying second communication node currently transmitted is self-contained structure.

8. the method according to the description of claim 7 is characterized in that demodulation reference letter in the first kind parameter Number the first time domain parameter, the time domain parameter of resource in the second class parameter determine the time domain position of the demodulated reference signal It puts, including：

First time domain parameter of the demodulated reference signal in the first kind parameter and the first self-contained structural parameters, second The time domain parameter of resource in class parameter and the second self-contained structural parameters determine the time-domain position of the demodulated reference signal.

9. the according to the method described in claim 8, it is characterized in that, demodulation reference letter in the first kind parameter Number the first time domain parameter and the first self-contained structural parameters, the time domain parameter of resource in the second class parameter and second it is self-contained Structural parameters determine the time-domain position of the demodulated reference signal, including：

According to the first time domain parameter of the demodulated reference signal and the first self-contained structural parameters, determine that described first is logical Believe the demodulated reference signal of node configuration OFDM symbol position shared on all time slots in Current resource, then root OFDM symbol start-stop position and the second self-contained structural parameters according to the time domain parameter of the resource, determine Belong to the time-domain position of the demodulated reference signal of second communication node in the Current resource；

The resource of second communication node described in OFDM symbol start-stop position instruction in the time domain parameter of the resource When not taking all symbols of all time slots in Current resource, accorded with according to the Orthogonal Frequency Division Multiplexing of the time domain parameter of the resource Number start-stop position selects institute of the demodulated reference signal of the first communication node configuration in the current scheduling resource sometimes The time-domain position as the demodulated reference signal in whole or in part in gap in shared OFDM symbol position； Wherein, the solution configured in the OFDM symbol initial position of the time domain parameter of the resource in first communication node When the OFDM symbol of reference signal being adjusted to be more than N number of symbol afterwards, the demodulation reference of the first communication node configuration The OFDM symbol of signal is invalid to second communication node；The N is natural number；Join in the time domain of the resource It is small before the OFDM symbol for the demodulated reference signal that several symbol final positions is configured in first communication node When M symbol, the OFDM symbol of the demodulated reference signal of the first communication node configuration is logical to described second Believe that node is invalid；The M is natural number.

10. according to the method described in claim 1, it is characterized in that, the pattern of the demodulated reference signal is orthogonal at one The pattern of all layers of demodulated reference signal is supported in frequency division multiplexing OFDM symbol；Wherein, it is identical per X layers of occupancy Time-frequency domain resource occupies the continuous X subcarrier of frequency domain, is code division multiplexing between X layers；In one orthogonal frequency division multiplexing Include the grouping of Y unduplicated code division multiplexings with symbol, each grouping includes X layers；Described X, Y are natural number；

When the number of plies that the pattern of the demodulated reference signal is supported is 8, the value of [X, Y] is [2,4] or [4,2]；The demodulation The time-frequency domain resource number that the frequency domain granularity higher slice of each Physical Resource Block PRB of the pattern of reference signal occupies is more than The time-frequency domain resource number of other layers of occupancy；

11. according to the method described in claim 10, it is characterized in that,

When the pattern of the demodulated reference signal is supports between OFDM symbol in a time slot or is multiple The pattern of frequency domain saltus step is carried out between adjacent orthogonal frequency division multiplexing symbol in gap according to default frequency domain hop mode；

Wherein, the frequency domain saltus step is the frequency domain saltus step in units of the group of code division multiplexing；The default frequency domain hop mode is It is determined according to the group number of code division multiplexing；Include the number and not of sequence selection in the default frequency domain hop mode Homotactic appearance order；The sphere of action of the default frequency domain hop mode refers to all demodulation references letter in each time slot Number OFDM symbol cycle one group of sequence of use scope or multiple time slots join together to all demodulation references The scope of one group of sequence of use of the OFDM symbol Xun Huan of signal.

12. according to the method for claim 11, which is characterized in that

The number of plies that the pattern of the demodulated reference signal is supported is 8, and when the value of [X, the Y] is [2,4], the demodulation ginseng Examine the number of plies that the pattern of signal is supported be group 1, group 2, group 3, group 4 this 4 groups, 4 groups of positions on frequency domain in a PRB There are following 4 different sequences：

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

The number of plies that the pattern of the demodulated reference signal is supported is 12, and when the value of [X, the Y] is [4,3], the demodulation The number of plies that the pattern of reference signal is supported is group 11, group 22,33 this 3 groups of group, 3 groups of positions on frequency domain in a PRB It is equipped with following 3 different sequences：

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

The number of plies that the pattern of the demodulated reference signal is supported is 8, and when the value of [X, the Y] is [4,2] or, the solution The number of plies that the pattern of reference signal is supported is adjusted as 12, and when the value of [X, the Y] is [6,2], the demodulated reference signal The number of plies that pattern is supported is group 111,222 this 2 groups of group, and 2 groups of positions on frequency domain have following different in a PRB 2 sequences：

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

13. a kind of collocation method of demodulated reference signal, which is characterized in that the described method includes：

Second communication node receives at least one first kind parameter of first communication node by the first signal deployment, and receives institute The second class parameter that the first communication node is distributed by the second signaling is stated, according to the first kind parameter, the second class parameter And the pattern of demodulated reference signal demodulated reference signal determines the position of the demodulated reference signal；

Or, second communication node receive the second class parameter that first communication node is distributed by the second signaling, according to described The pattern of second class parameter and demodulated reference signal determines the position of the demodulated reference signal.

14. according to the method for claim 13, which is characterized in that the first kind parameter includes the of demodulated reference signal One time domain parameter；The second class parameter includes：Demodulated reference signal parameter and/or resource configuration parameter；

The resource configuration parameter include it is following at least one of：The time domain parameter of resource, the frequency domain parameter of resource, resource institute Total number of plies of multi-user's multiple-input, multiple-output multi-user's multiple-input, multiple-output group where the number of plies that accounts for, resource；

15. according to the method for claim 13, which is characterized in that first signaling includes high-level signaling, the high level Signaling includes radio resource control signaling；Second signaling includes physical layer signaling, and the physical layer signaling includes downlink chain Road control information signaling or physical layer control channel signaling.

16. according to the method for claim 13, which is characterized in that the method further includes：

Second communication node sends the demodulation on the position of the demodulated reference signal to first communication node Reference signal；Or, second communication node receives the first communication node hair on the position of the demodulated reference signal The demodulated reference signal sent.

17. according to the method for claim 13, which is characterized in that the method further includes：

Whether second communication node is needed according under physics according to first communication node by the 3rd signal deployment The start-stop position of row shared channel determines the position of the demodulated reference signal.

18. according to the method for claim 14, which is characterized in that described according to the first kind parameter, second class The pattern of parameter and demodulated reference signal determines the position of the demodulated reference signal, including：

19. according to the method for claim 18, which is characterized in that second communication node is the self-contained structure of support During communication node, the first kind parameter further includes the first self-contained structural parameters, and the resource configuration parameter further includes second Self-contained structural parameters；

20. according to the method for claim 19, which is characterized in that the demodulation reference in the first kind parameter First time domain parameter of signal, the time domain parameter of resource in the second class parameter determine the time domain of the demodulated reference signal Position, including：

21. according to the method for claim 20, which is characterized in that the demodulation reference in the first kind parameter First time domain parameter of signal and the first self-contained structural parameters, the time domain parameter of resource in the second class parameter and second are from wrapping Containing structural parameters, the time-domain position of the demodulated reference signal is determined, including：

According to the first time domain parameter of the demodulated reference signal and the first self-contained structural parameters, determine that described first is logical Believe the demodulated reference signal of node configuration Orthogonal Frequency Division Multiplexing Orthogonal Frequency Division Multiplexing shared on all time slots in Current resource Character position, OFDM symbol start-stop position and the second self-contained knot further according to the time domain parameter of the resource Structure parameter determines the time-domain position for belonging to the demodulated reference signal of second communication node in the Current resource；

The resource of second communication node described in OFDM symbol start-stop position instruction in the time domain parameter of the resource When not taking all symbols of all time slots in Current resource, accorded with according to the Orthogonal Frequency Division Multiplexing of the time domain parameter of the resource Number start-stop position selects institute of the demodulated reference signal of the first communication node configuration in the current scheduling resource sometimes The time-domain position as the demodulated reference signal in whole or in part in gap in shared OFDM symbol position； Wherein, the solution configured in the OFDM symbol initial position of the time domain parameter of the resource in first communication node When the OFDM symbol of reference signal being adjusted to be more than N number of symbol afterwards, second communication node communicates to described first The OFDM symbol of the demodulated reference signal of node configuration is invalid；The N is natural number；Join in the time domain of the resource It is small before the OFDM symbol for the demodulated reference signal that several symbol final positions is configured in first communication node When M symbol, the orthogonal frequency division multiplexing for the demodulated reference signal that second communication node configures first communication node It is invalid with symbol；The M is natural number.

22. according to the method for claim 13, which is characterized in that the pattern of the demodulated reference signal is orthogonal at one The pattern of all layers of demodulated reference signal is supported in frequency division multiplexing OFDM symbol；Wherein, it is identical per X layers of occupancy Time-frequency domain resource occupies the continuous X subcarrier of frequency domain, is code division multiplexing between X layers；In one orthogonal frequency division multiplexing Include the grouping of Y unduplicated code division multiplexings with symbol, each grouping includes X layers；Described X, Y are natural number；

23. according to the method for claim 22, which is characterized in that

24. according to the method for claim 23, which is characterized in that

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

25. a kind of first communication device, which is characterized in that the first communication device includes：

Determining module, for according to the first kind parameter, the second class parameter and demodulated reference signal demodulated reference signal Pattern determine the position of the demodulated reference signal；

Or, the first communication device includes：

Determining module, for determining the demodulated reference signal according to the pattern of the second class parameter and demodulated reference signal Position.

26. first communication device according to claim 25, which is characterized in that the first kind parameter includes demodulation reference First time domain parameter of signal；The second class parameter includes：Demodulated reference signal parameter and/or resource configuration parameter；

27. first communication device according to claim 25, which is characterized in that first signaling includes high-level signaling, The high-level signaling includes radio resource control signaling；Second signaling includes physical layer signaling, the physical layer signaling bag Include down link control information signaling or physical layer control channel signaling.

28. first communication device according to claim 25, which is characterized in that the first communication device further includes：

Communication module, for sending the demodulation reference to the secondary communication device on the position of the demodulated reference signal Signal；

Or, communication module, for being received on the position of the demodulated reference signal described in the secondary communication device transmission Demodulated reference signal.

29. first communication device according to claim 25, which is characterized in that the configuration module is additionally operable to by Whether secondary communication device described in three signal deployments needs the start-stop position according to Physical Downlink Shared Channel PDSCH to determine State the position of demodulated reference signal.

30. first communication device according to claim 26, which is characterized in that the determining module, specifically for basis The time domain parameter of first time domain parameter of the demodulated reference signal in the first kind parameter, resource in the second class parameter Determine the time-domain position of the demodulated reference signal；Or the first time domain of the demodulated reference signal in the first kind parameter Parameter, the second time domain parameter of demodulated reference signal in the second class parameter, resource in the second class parameter when Field parameter determines the time-domain position of the demodulated reference signal；

The determining module determines that the demodulation is joined also particularly useful for the frequency domain parameter of the resource in the second class parameter Examine the frequency domain position of signal；

The determining module, antenna port parameter also particularly useful for the demodulated reference signal in the second class parameter, Total layer of the number of plies shared by the parameter of the code division multiplexing of demodulated reference signal, resource, multi-user's multiple-input, multiple-output group where resource At least one in number determines the spatial domain position of the demodulated reference signal and code domain position；

The determining module, also particularly useful for time-domain position, the demodulated reference signal according to the demodulated reference signal Frequency domain position, the spatial domain position of the demodulated reference signal, the code domain position of the demodulated reference signal and the demodulation reference The pattern of signal determines the position of the demodulated reference signal.

31. first communication device according to claim 30, which is characterized in that the secondary communication device wraps certainly for support During communicator containing structure, the first kind parameter further includes the first self-contained structural parameters, and the resource configuration parameter is also Including the second self-contained structural parameters；

The first self-contained structural parameters are used to indicate the time-domain position of the demodulated reference signal of self-contained structure；Described second Self-contained structural parameters are used to indicate whether the resource for notifying the secondary communication device currently transmitted is self-contained structure.

32. first communication device according to claim 31, which is characterized in that the determining module, specifically for basis In first time domain parameter of the demodulated reference signal in the first kind parameter and the first self-contained structural parameters, the second class parameter Resource time domain parameter and the second self-contained structural parameters, determine the time-domain position of the demodulated reference signal.

33. first communication device according to claim 32, which is characterized in that the determining module, also particularly useful for root The first time domain parameter and the first self-contained structural parameters according to the demodulated reference signal, determine first communication node The demodulated reference signal of configuration Orthogonal Frequency Division Multiplexing OFDM symbol position shared on all time slots in Current resource It puts, OFDM symbol start-stop position and the second self-contained structure ginseng further according to the time domain parameter of the resource Number, determines the time-domain position for belonging to the demodulated reference signal of second communication node in the Current resource；

The determining module, also particularly useful for the OFDM symbol start-stop position instruction of the time domain parameter in the resource When the resource of the secondary communication device does not take all symbols of all time slots in Current resource, according to the resource when The OFDM symbol start-stop position of field parameter selects the demodulated reference signal of the first communication device configuration described Described in all or part of conduct on all time slots in current scheduling resource in shared OFDM symbol position The time-domain position of demodulated reference signal；Wherein, exist in the OFDM symbol initial position of the time domain parameter of the resource When being more than N number of symbol after the OFDM symbol of the demodulated reference signal of first communication device configuration, described the The OFDM symbol of the demodulated reference signal of one communication device configuration is invalid to the secondary communication device；The N is Natural number；In the demodulated reference signal that the symbol final position of the time domain parameter of the resource is configured in the first communication device OFDM symbol before when being less than M symbol, demodulated reference signal that the first communication device configures it is orthogonal Frequency division multiplexing symbol is invalid to the secondary communication device；The M is natural number.

34. first communication device according to claim 25, which is characterized in that the pattern of the demodulated reference signal be The pattern of all layers of demodulated reference signal is supported in one Orthogonal Frequency Division Multiplexing OFDM symbol；Wherein, accounted for per X layers With identical time-frequency domain resource, the continuous X subcarrier of frequency domain is occupied, is code division multiplexing between X layers；It is one just Frequency division multiplexing symbol is handed over to include the grouping of Y unduplicated code division multiplexings, each grouping includes X layers；Described X, Y are nature Number；

35. first communication device according to claim 34, which is characterized in that

36. first communication device according to claim 35, which is characterized in that

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

37. a kind of secondary communication device, which is characterized in that the secondary communication device includes：

Communication module for receiving at least one first kind parameter of the first communication device by the first signal deployment, and receives The second class parameter that the first communication device is distributed by the second signaling；

Or, the secondary communication device includes：

38. the secondary communication device according to claim 37, which is characterized in that the first kind parameter includes demodulation reference First time domain parameter of signal；The second class parameter includes：Demodulated reference signal parameter and/or resource configuration parameter；

39. the secondary communication device according to claim 37, which is characterized in that first signaling includes high-level signaling, The high-level signaling includes radio resource control signaling；Second signaling includes physical layer signaling, the physical layer signaling bag Include down link control information DCI signalings or physical layer control channel signaling.

40. the secondary communication device according to claim 37, which is characterized in that the communication module is additionally operable to described On the position of demodulated reference signal the demodulated reference signal is sent to the first communication device；

Or, the communication module, it is additionally operable to receive the first communication device transmission on the position of the demodulated reference signal The demodulated reference signal.

41. the secondary communication device according to claim 37, which is characterized in that the communication module is additionally operable to according to institute State the first communication node by the 3rd signal deployment whether need according to the start-stop position of Physical Downlink Shared Channel PDSCH come Determine the position of the demodulated reference signal.

42. the secondary communication device according to claim 38, which is characterized in that the determining module, specifically for basis The time domain parameter of first time domain parameter of the demodulated reference signal in the first kind parameter, resource in the second class parameter Determine the time-domain position of the demodulated reference signal；Or the first time domain of the demodulated reference signal in the first kind parameter Parameter, the second time domain parameter of demodulated reference signal in the second class parameter, resource in the second class parameter when Field parameter determines the time-domain position of the demodulated reference signal；

43. secondary communication device according to claim 42, which is characterized in that the secondary communication device wraps certainly for support During communication node containing structure, the first kind parameter further includes the first self-contained structural parameters, and the resource configuration parameter is also Including the second self-contained structural parameters；

44. secondary communication device according to claim 43, which is characterized in that the determining module, also particularly useful for root According to the first time domain parameter of the demodulated reference signal in the first kind parameter and the first self-contained structural parameters, the second class parameter In resource time domain parameter and the second self-contained structural parameters, determine the time-domain position of the demodulated reference signal.

45. secondary communication device according to claim 44, which is characterized in that the determining module, also particularly useful for root The first time domain parameter and the first self-contained structural parameters according to the demodulated reference signal, determine the first communication device The demodulated reference signal of configuration Orthogonal Frequency Division Multiplexing OFDM symbol position shared on all time slots in Current resource It puts, OFDM symbol start-stop position and the second self-contained structure ginseng further according to the time domain parameter of the resource Number, determines the time-domain position for belonging to the demodulated reference signal of the secondary communication device in the Current resource；

The resource of secondary communication device described in OFDM symbol start-stop position instruction in the time domain parameter of the resource When not taking all symbols of all time slots in Current resource, accorded with according to the Orthogonal Frequency Division Multiplexing of the time domain parameter of the resource Number start-stop position selects institute of the demodulated reference signal of the first communication device configuration in the current scheduling resource sometimes The time-domain position as the demodulated reference signal in whole or in part in gap in shared OFDM symbol position； Wherein, the solution configured in the OFDM symbol initial position of the time domain parameter of the resource in the first communication device When the OFDM symbol of reference signal being adjusted to be more than N number of symbol afterwards, the secondary communication device communicates to described first The OFDM symbol of the demodulated reference signal of device configuration is invalid；The N is natural number；Join in the time domain of the resource It is small before the OFDM symbol for the demodulated reference signal that several symbol final positions is configured in the first communication device When M symbol, the orthogonal frequency division multiplexing for the demodulated reference signal that the secondary communication device configures the first communication device It is invalid with symbol；The M is natural number.

46. the secondary communication device according to claim 37, which is characterized in that the pattern of the demodulated reference signal be The pattern of all layers of demodulated reference signal is supported in one Orthogonal Frequency Division Multiplexing OFDM symbol；Wherein, accounted for per X layers With identical time-frequency domain resource, the continuous X subcarrier of frequency domain is occupied, is code division multiplexing between X layers；It is one just Frequency division multiplexing symbol is handed over to include the grouping of Y unduplicated code division multiplexings, each grouping includes X layers；Described X, Y are nature Number；

47. secondary communication device according to claim 46, which is characterized in that

48. secondary communication device according to claim 47, which is characterized in that

Sequence 1：[group 1, group 2, group 3, group 4, group 1, group 2]；

Sequence 2：[group 3, group 4, group 1, group 2, group 3, group 4]；

Sequence 3：[group 4, group 1, group 2, group 3, group 4, group 1]；

Sequence 4：[group 2, group 3, group 4, group 1, group 2, group 3]；

Sequence 5：[group 11, group 22, group 33, group 11, group 22, group 33]；

Sequence 6：[group 22, group 33, group 11, group 22, group 33, group 11]；

Sequence 7：[group 33, group 11, group 22, group 33, group 11, group 22]；

Sequence 8：[group 111, group 222, group 111]；

Sequence 9：[group 222, group 111, group 222].

49. a kind of first communication node, which is characterized in that first communication node includes：

Interface, bus, memory, with processor, the interface, the memory are connected with the processor by the bus It connects, for storing instruction, the processor reads described instruction and is used for the memory：

At least one first kind parameter is configured for the second communication node by the first signaling, and passes through the second signaling as described second Communication node distributes the second class parameter, is demodulated and joined according to the first kind parameter, the second class parameter and demodulated reference signal The pattern for examining signal determines the position of the demodulated reference signal；

Or, the second class parameter is distributed for the second communication node by the second signaling, according to the second class parameter and demodulation reference The pattern of signal determines the position of the demodulated reference signal.

50. the first communication node according to claim 49, which is characterized in that the first kind parameter includes demodulation reference First time domain parameter of signal；The second class parameter includes：Demodulated reference signal parameter and/or resource configuration parameter；

51. a kind of second communication node, which is characterized in that second communication node includes：

At least one first kind parameter of first communication node by the first signal deployment is received, and receives first communication section The second class parameter that point is distributed by the second signaling is believed according to the first kind parameter, the second class parameter and demodulation reference The pattern of number demodulated reference signal determines the position of the demodulated reference signal；

Or, the second class parameter that first communication node is distributed by physical layer signaling is received, according to the second class parameter And the pattern of demodulated reference signal determines the position of the demodulated reference signal.

52. the second communication node according to claim 51, which is characterized in that the first kind parameter includes demodulation reference First time domain parameter of signal；The second class parameter includes：Demodulated reference signal parameter and/or resource configuration parameter；

53. a kind of computer readable storage medium, is stored with computer executable instructions, which is characterized in that the computer can Execute instruction the collocation method realized when being executed by processor such as claim 1 to 12 any one of them demodulated reference signal.

54. a kind of computer readable storage medium, is stored with computer executable instructions, which is characterized in that the computer can Execute instruction the collocation method realized when being executed by processor such as claim 13 to 24 any one of them demodulated reference signal.