CN114826505A

CN114826505A - Information transmission method, terminal equipment and network equipment

Info

Publication number: CN114826505A
Application number: CN202110060808.9A
Authority: CN
Inventors: 沈姝伶; 王磊
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2022-07-29
Anticipated expiration: 2041-01-18
Also published as: WO2022151906A1; CN114826505B

Abstract

The invention provides an information transmission method, terminal equipment and network equipment, and relates to the technical field of communication. The information transmission method is executed by a terminal device and comprises the following steps: acquiring the transmission position of a demodulation reference signal (DMRS), wherein the transmission position of the DMRS is suitable for an uplink transmission channel to start joint channel estimation or DMRS binding function; and according to the transmission position of the DMRS, transmitting an uplink DMRS signal in an uplink transmission channel. According to the scheme, the uplink DMRS signals are transmitted according to the transmission position of the DMRS which is suitable for the uplink transmission channel starting joint channel estimation or the DMRS binding function, so that the problem that the coding rate of the uplink transmission channel is improved due to overhigh DMRS density, and the reliability performance of channel transmission is reduced can be solved. The invention reduces the coding rate and improves the channel transmission performance on the premise of ensuring the reliability of channel estimation, thereby achieving the purpose of coverage enhancement.

Description

Information transmission method, terminal equipment and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information transmission method, a terminal device, and a network device.

Background

In the process of coverage enhancement research on a Physical Uplink Shared Channel (PUSCH) and a Physical Uplink Control Channel (PUCCH) of a New Radio interface (New Radio, NR) of the fifth Generation (5Generation, 5G), an enhancement scheme using joint Channel estimation, that is, Demodulation Reference Signal (DMRS) bundling (bundling), is proposed. According to the scheme, the channel in the current slot (slot) adopts the DMRS in the adjacent slot to carry out joint channel estimation, so that the accuracy of channel estimation is improved. The DMRS time domain pattern (pattern) of the current uplink transmission channel PUSCH/PUCCH is designed with a slot as a boundary, only the DMRS in the current slot is considered during channel estimation, and after the DMRS pattern is determined, the DMRS pattern cannot be adjusted according to a channel condition that changes at any time. At this time, DMRSs determining PUSCH/PUCCH according to the related art are generally redundant, and in a low-speed case, too high DMRS density may further increase a coding rate to degrade channel transmission performance.

Disclosure of Invention

Embodiments of the present invention provide an information transmission method, a terminal device, and a network device, so as to solve a problem that, if joint channel estimation is performed according to an existing DMRS time domain pattern, an encoding rate is increased due to an excessively high DMRS density, and thus channel transmission performance is reduced.

In order to solve the foregoing technical problem, an embodiment of the present invention provides an information transmission method, executed by a terminal device, including:

acquiring the transmission position of a demodulation reference signal (DMRS), wherein the transmission position of the DMRS is suitable for an uplink transmission channel to start joint channel estimation or DMRS binding function;

and according to the transmission position of the DMRS, transmitting an uplink DMRS signal in an uplink transmission channel.

Optionally, the acquiring a transmission position of a demodulation reference signal DMRS includes:

acquiring the transmission position of the DMRS according to a first rule;

wherein the first rule is: setting K DMRSs in each uplink transmission channel, wherein the transmission positions of the DMRSs in different uplink transmission channels are the same;

wherein K is an integer greater than or equal to 1.

Further, when the upper layer signaling does not configure an additional DMRS for the uplink channel, the first rule includes:

selecting transmission positions of K DMRSs in a first DMRS pattern corresponding to an uplink transmission channel;

wherein the number of DMRSs in the first DMRS pattern is greater than or equal to K.

Further, when the higher layer signaling configures an additional DMRS for the uplink channel, the first rule includes:

selecting transmission positions of K DMRSs in a first DMRS pattern corresponding to an uplink transmission channel, wherein the number of the DMRSs in the first DMRS pattern is larger than or equal to K; or

Configuring DMRS transmission positions when K-1 extra DMRS are configured for an uplink transmission channel by adopting high-level signaling; or

And configuring DMRS transmission positions when K DMRSs are configured for the uplink transmission channel by adopting high-level signaling.

acquiring the transmission position of the DMRS according to a second rule;

wherein the second rule is: dividing X OFDM symbols into Y intervals, and determining the transmission position of the DMRS according to the Y intervals;

each interval at least comprising

Each of the OFDM symbols X, Y is an integer greater than or equal to 1, X is the total number of all OFDM symbols occupied by the first channel, and Y is the number of DMRSs that need to be placed in the first channel; or

X is the number of OFDM symbols occupied by the first channel except for Y-1 DMRS, and Y is the number of the DMRS needing to be placed in the first channel plus one;

the first channel is one of:

an uplink transmission channel;

and all uplink transmission channels for joint channel estimation or DMRS bundling.

Further, the dividing X OFDM symbols into Y intervals includes:

if M is 1, randomly allocating M OFDM symbols to an interval;

if M >1, allocating M OFDM symbols to at least one interval;

where M ═ mod (X, Y).

Further, the allocating the M OFDM symbols to at least one section includes:

allocating all M OFDM symbols to an interval; or

Averagely dividing M OFDM symbols into P parts, and distributing the P parts to P intervals, wherein P is less than or equal to Y; or

Dividing M OFDM symbols into Q parts, and distributing the Q parts to Q intervals, wherein Q is less than or equal to Y;

wherein P, Q are each integers greater than 1.

Further, when X is the total number of all OFDM symbols occupied by the first channel and Y is the number of DMRSs that need to be placed in the first channel, the determining, according to the Y intervals, the transmission position of the DMRSs includes:

and setting a transmission position of one DMRS in each interval.

Further, the setting of one DMRS in each interval includes:

if the number of OFDM symbols occupied by the first interval is odd, the second interval is the first interval

Setting a DMRS at each OFDM symbol position; or

If the number of the OFDM symbols occupied by the first interval is even, setting a DMRS at the S/2 th OFDM symbol position of the first interval, or setting a DMRS at the S/2+1 th OFDM symbol position of the first interval;

wherein, S is the number of OFDM symbols occupied by the first interval.

Further, when X is the number of OFDM symbols occupied by the first channel except for Y-1 DMRSs, and Y is the number of DMRSs that need to be placed in the first channel plus one, the determining, according to the Y intervals, the transmission position of the DMRSs includes:

the transmission position of one DMRS is set at an OFDM symbol position after each of the first Y-1 intervals.

Optionally, the uplink transmission channel includes: at least one of a physical uplink control channel and a physical uplink shared channel.

The embodiment of the invention also provides an information transmission method, which is executed by network equipment and comprises the following steps:

and receiving uplink DMRS signals in an uplink transmission channel according to the transmission position of the DMRS.

acquiring the transmission position of the DMRS according to a first rule;

wherein K is an integer greater than or equal to 1.

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

the first channel is one of:

an uplink transmission channel;

Further, the dividing X OFDM symbols into Y intervals includes:

if M is 1, randomly allocating M OFDM symbols to an interval;

if M >1, allocating M OFDM symbols to at least one interval;

where M ═ mod (X, Y).

Further, the allocating the M OFDM symbols to at least one section includes:

allocating all the M OFDM symbols to an interval; or

wherein P, Q are each integers greater than 1.

and setting a transmission position of one DMRS in each interval.

Further, the setting of one DMRS in each interval includes:

Setting a DMRS at each OFDM symbol position; or

wherein, S is the number of OFDM symbols occupied by the first interval.

The embodiment of the invention also provides a terminal device, which comprises a memory, a transceiver and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

and according to the transmission position of the DMRS, transmitting an uplink DMRS signal in an uplink transmission channel through a transceiver.

Optionally, the processor is configured to read a computer program in the memory to obtain a transmission location of a demodulation reference signal DMRS, and is configured to implement:

acquiring the transmission position of the DMRS according to a first rule;

wherein K is an integer greater than or equal to 1.

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

Each OFDM symbol X, Y is an integer greater than or equal to 1, X is the total number of all OFDM symbols occupied by the first channel, and Y is the number of DMRS required to be placed by the first channel; or

the first channel is one of:

an uplink transmission channel;

The embodiment of the invention also provides a network device, which comprises a memory, a transceiver and a processor:

a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations:

and receiving uplink DMRS signals in an uplink transmission channel through a transceiver according to the transmission position of the DMRS.

An embodiment of the present invention further provides a terminal device, including:

the device comprises a first obtaining unit, a second obtaining unit and a third obtaining unit, wherein the first obtaining unit is used for obtaining the transmission position of a demodulation reference signal (DMRS), and the transmission position of the DMRS is suitable for an uplink transmission channel to start joint channel estimation or DMRS binding function;

and the transmitting unit is used for transmitting the uplink DMRS signals in the uplink transmission channel according to the transmission position of the DMRS.

An embodiment of the present invention further provides a network device, including:

a second obtaining unit, configured to obtain a transmission position of a demodulation reference signal DMRS, where the transmission position of the DMRS is suitable for an uplink transmission channel to start joint channel estimation or DMRS bundling function;

and the receiving unit is used for receiving the uplink DMRS signals in the uplink transmission channel according to the transmission position of the DMRS.

An embodiment of the present invention further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is configured to enable the processor to execute the above method.

The invention has the beneficial effects that:

according to the scheme, the uplink DMRS signals are transmitted according to the transmission position of the DMRS suitable for the uplink transmission channel starting joint channel estimation or DMRS binding function, so that the problem that the reliability performance of channel transmission is reduced due to the fact that the coding rate of the uplink transmission channel is improved due to too high DMRS density can be solved. The invention reduces the coding rate and improves the channel transmission performance on the premise of ensuring the reliability of channel estimation, thereby achieving the purpose of coverage enhancement.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.

Fig. 1 shows a block diagram of a network system suitable for use in embodiments of the present application;

fig. 2 illustrates a diagram of a DMRS pattern of a PUSCH mapping Type a occupying 10 OFDM symbols;

fig. 3 illustrates a diagram of a DMRS pattern of a PUSCH mapping Type B occupying 10 OFDM symbols;

fig. 4 shows a diagram of a DMRS pattern of PUCCH format 1/3/4 occupying 10 OFDM symbols;

fig. 5 is a flowchart illustrating an information transmission method applied to a terminal device according to an embodiment of the present invention;

fig. 6 shows a DMRS pattern diagram for scenario one;

fig. 7 shows one of DMRS pattern diagrams of scenario two;

fig. 8 shows a second DMRS pattern diagram for scenario two;

fig. 9 shows one of DMRS pattern diagrams of scenario three;

fig. 10 shows a second DMRS pattern diagram for scenario three;

fig. 11 shows a DMRS pattern diagram for scene four;

fig. 12 shows a DMRS pattern diagram for scenario five;

fig. 13 shows a DMRS pattern diagram for scene six;

fig. 14 is a flowchart illustrating an information transmission method applied to a network device according to an embodiment of the present invention;

fig. 15 is a schematic diagram showing the elements of a terminal device according to an embodiment of the present invention;

fig. 16 is a block diagram showing a terminal device according to an embodiment of the present application;

fig. 17 is a schematic diagram of a network device according to an embodiment of the present invention;

fig. 18 is a block diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be implemented, for example, in a sequence other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the embodiment of the present application, the term "and/or" describes an association relationship of associated objects, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Embodiments of the present application are described below with reference to the accompanying drawings. The mode indication method, the terminal device and the network device provided by the embodiment of the application can be applied to a wireless communication system. The wireless communication system may be a system adopting a 5th Generation (5G) mobile communication technology (hereinafter, referred to as a 5G system), and those skilled in the art will appreciate that the 5G NR system is only an example and is not a limitation.

Referring to fig. 1, fig. 1 is a structural diagram of a network system to which the embodiment of the present invention is applicable, and as shown in fig. 1, the network system includes a User terminal 11 and a base station 12, where the User terminal 11 may be a User Equipment (UE), for example: the terminal side Device may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), and it should be noted that the specific type of the user terminal 11 is not limited in the embodiments of the present application. The base station 12 may be a base station of 5G and later releases (e.g., a gNB, a 5G NR NB), or a base station in other communication systems, or referred to as a node B, and it should be noted that in this embodiment of the present application, only the 5G base station is taken as an example, but the specific type of the base station 12 is not limited.

Some concepts related to embodiments of the present invention are first explained below.

In 5G NR, a DMRS time domain pattern for uplink transmission is determined in slots in a semi-static configuration manner, and after the DMRS time domain pattern is determined, the DMRS time domain pattern cannot be generally adjusted according to a channel condition that changes at any time.

For the PUSCH, two modes, namely PUSCH mapping Type a and PUSCH mapping Type B, may be adopted. When the Type a is adopted, the DMRS is usually placed at the third or fourth Orthogonal Frequency Division Multiplexing (OFDM) symbol position of the PUSCH, and when the Type B is adopted, the DMRS is placed at the first OFDM symbol position of the PUSCH. In addition, the base station may configure a time domain symbol position of an additional (additional) DMRS through Radio Resource Control (RRC) signaling, and one PUSCH may configure 0 to 3 additional DMRSs. The Additional DMRS occupies a fixed position in one PUSCH, and the transmission positions of the Additional DMRS of the PUSCHs with different lengths are specified by a protocol. Fig. 2 and fig. 3 take PUSCH occupying 10 OFDM symbols as an example, and give patterns when different numbers of additional DMRSs are respectively configured for two types. In fig. 2 and 3, white filled boxes indicate DMRSs, and diagonal grid filled boxes indicate PUSCHs.

For PUCCH, the prior art designs different DMRS patterns for different formats. The PUCCH format 0 adopts a sequence mode and does not need DMRS for channel estimation. The PUCCH format 1 adopts a mode of alternately placing DMRSs and Uplink Control Information (UCI) in a time domain, where the DMRS is fixedly placed in a first OFDM symbol position. And the PUCCH format 2 adopts a comb mode to stagger DMRS and UCI on 12 REs occupying the frequency domain of one OFDM symbol. The PUCCH format3/4 adopts the same DMRS pattern, and under the condition that no additional DMRS is configured, one PUCCH usually comprises one (when the PUCCH occupies 4 OFDM symbols) or two (when the PUCCH occupies 5-14 OFDM symbols) DMRS. When the PUCCH occupies more than 7 symbols, additional DMRSs may also be configured, where one PUCCH includes 4 DMRSs. Fig. 4 shows transmission positions of DMRSs of PUCCH format 1/3/4 in different cases, taking PUCCH occupying 10 OFDM symbols as an example, where white-dot filling boxes represent DMRSs, and horizontal-vertical grid filling boxes represent UCI.

DMRS pattern of the current uplink transmission channel PUSCH/PUCCH is designed by taking slot as a boundary, and only the DMRS in the current slot is considered when channel estimation is carried out. When joint channel estimation/DMRS bundling is enabled, the uplink transmission channel may use DMRS in adjacent slots for joint channel estimation. For example, when N uplink transmission channels enable DMRS bundling, a current slot may use a DMRS of at most N times to perform joint channel estimation, at this time, a DMRS time domain pattern determined according to a semi-static state is usually redundant, and especially in a low-speed scenario, an excessively high DMRS density may further increase a channel coding rate, thereby reducing channel transmission performance.

The embodiment of the invention provides an information transmission method, terminal equipment and network equipment, which are used for solving the problem that when joint channel estimation is carried out according to the existing DMRS time domain pattern, the coding rate is improved due to the overhigh DMRS density, and the channel transmission performance is reduced.

The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

As shown in fig. 5, an embodiment of the present invention provides an information transmission method, which is executed by a terminal device, and includes:

step S501, acquiring the transmission position of a demodulation reference signal (DMRS), wherein the transmission position of the DMRS is suitable for an uplink transmission channel to start joint channel estimation or DMRS binding function;

and step S502, transmitting the uplink DMSR signal in an uplink transmission channel according to the transmission position of the DMRS.

It should be noted that, by first acquiring a transmission position of a DMRS suitable for an uplink transmission channel to open joint channel estimation or DMRS bundling function, and then mapping the DMRS and data according to the transmission position of the DMRS, DMRS signal transmission on the uplink transmission channel is implemented, specifically, the uplink transmission channel includes: at least one of a Physical Uplink Shared Channel (PUSCH) and a Physical Uplink Control Channel (PUCCH), for example, the uplink transmission channel may be the PUSCH or the PUCCH; the data may be uplink service information or UCI.

It should be noted that the transmission position of the DMRS in the embodiment of the present invention refers to a DMRS pattern.

In at least one embodiment of the present invention, an implementation manner of the step S501 is:

acquiring the transmission position of the DMRS according to a first rule;

it should be noted that, the first rule is: setting K DMRSs in each uplink transmission channel, wherein the transmission positions of the DMRSs in different uplink transmission channels are the same;

wherein K is an integer greater than or equal to 1.

Specifically, when the upper layer signaling does not configure an additional DMRS for the uplink channel, the first rule includes:

It should be noted that the first DMRS pattern is an existing DMRS pattern of an uplink transmission channel, that is, the DMRS patterns shown in fig. 2 to 4 may be regarded as the first DMRS pattern.

That is to say, in this case, transmission positions of K DMRSs are reserved in a DMRS pattern configured by an existing RRC, and it should be noted that, since an uplink transmission channel has multiple different formats, here, the reservation of the transmission positions of the DMRSs is performed according to the principle that the formats are the same when performing the reservation, for example, a PUCCH in the embodiment of the present invention is format 1, when determining the transmission position of the DMRS, a terminal device reserves the transmission positions of K DMRSs in the DMRS pattern corresponding to the PUCCH format 1, and specifically, the value of K only needs to satisfy the requirement of the uplink transmission channel to start joint channel estimation or DMRS bundling function.

Specifically, when the higher layer signaling configures an additional DMRS for the uplink channel, the first rule includes one of:

a11, selecting transmission positions of K DMRSs in a first DMRS pattern corresponding to an uplink transmission channel, wherein the number of the DMRSs in the first DMRS pattern is larger than or equal to K;

a12, configuring DMRS transmission positions of K-1 extra DMRS for an uplink transmission channel by adopting high-level signaling;

it should be noted that, in this case, the transmission positions of the K DMRSs in the application are determined according to the DMRS patterns when the K-1 additional DMRSs are configured in the prior art, that is, the transmission positions of the DMRSs corresponding to the DMRS patterns when the K-1 additional DMRSs are configured in the prior art are the transmission positions of the K DMRSs in the application.

And A13, configuring DMRS transmission positions when K DMRSs are configured for the uplink transmission channel by adopting high-level signaling.

In this case, the transmission positions of the K DMRSs in the present application are determined according to the DMRS patterns obtained when the K DMRSs are configured in the prior art, that is, the transmission positions of the DMRSs corresponding to the DMRS patterns obtained when the K DMRSs are configured in the prior art are the transmission positions of the K DMRSs in the present application.

Application scenarios I,

For example, one PUSCH can reserve K DMRSs on the basis of existing DMRS patterns only if additional DMRSs are configured. Taking PUSCH occupying 10 symbols as an example, 2 additional DMRSs are semi-statically configured, as shown in a in fig. 6, DMRSs in the existing DMRS pattern may occupy OFDM symbols with indices #2, #6, and # 9. Suppose that the new DMRS pattern requires that each PUSCH participating in joint channel estimation is guaranteed to reserve 2 DMRSs on the basis of the existing DMRS pattern. At this time, any two DMRSs may be reserved at the originally configured three DMRS positions, and in this embodiment, OFDM symbols with reserved indexes of #2 and #6 are selected as shown in b in fig. 6; alternatively, a DMRS pattern when 1 additional DMRS is configured may be employed, and OFDM symbols with index #2 and #9 are reserved as shown by c in fig. 6;

the white-dot filled boxes in fig. 6 represent DMRSs, and the diagonal grid filled boxes represent uplink traffic information.

Application scenarios II,

In the case of the PUCCH except for format3/4 occupying 4 OFDM symbols, the number of DMRSs is greater than 1, that is, part of DMRSs may be reduced on the basis of the current DMRS pattern. For example, taking PUCCH format3 occupying 10 symbols as an example, when no additional DMRSs are configured, as shown by a in fig. 7, DMRSs in the existing DMRS pattern occupy OFDM symbols with index #2 and # 7. The new DMRS pattern requires that each PUCCH participating in joint channel estimation is guaranteed to reserve 1 DMRS on the basis of the existing DMRS pattern. In this case, any one DMRS may be reserved in the originally configured two DMRS positions, and in this embodiment, an OFDM symbol with reserved index #2 is selected as shown by b in fig. 7. When additional DMRSs are configured, as shown in a in fig. 8, DMRSs in the existing DMRS patterns occupy OFDM symbols with indices #1, #3, #6, and #8, provided that a new DMRS pattern n requires that each PUCCH participating in joint channel estimation is guaranteed to reserve 2 DMRSs on the basis of the existing DMRS pattern. At this time, the positions of the two reserved DMRSs may be any two of the four DMRS positions configured semi-statically in the prior art, and in this embodiment, OFDM symbols with reserved indexes of #1 and #6 are selected as shown in b in fig. 8; alternatively, a pattern when 2 DMRSs are configured, i.e., there is no additional DMRSs may be employed, and OFDM symbols having indices #2 and #7 are reserved as shown by c in fig. 8.

The white dot filling boxes represent DMRS, and the horizontal and vertical line grid filling boxes represent UCI.

Note that, since PUCCH format 1 does not perform additional DMRS distinction in NR, no additional DMRS processing is configured.

In at least one embodiment of the present invention, another implementation manner of the step S501 is:

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

the first channel is one of:

an uplink transmission channel;

It should be noted that, in this implementation, the value of Y determines that the finally determined transmission position of the DMRS is suitable for the uplink transmission channel to open joint channel estimation or DMRS bundling function.

Further, the dividing X OFDM symbols into Y intervals includes:

b11, if M is 1, randomly allocating M OFDM symbols to one interval;

here, M is mod (X, Y), that is, in this case, the remaining one OFDM symbol is allocated to any one divided section.

B12, if M >1, allocating M OFDM symbols to at least one interval;

specifically, implementations of this case include one of:

b121 allocates all M OFDM symbols to one section;

that is, in this case, all the remaining OFDM symbols are allocated to any one divided section.

B122, averagely dividing the M OFDM symbols into P parts, and distributing the P parts to P intervals, wherein P is less than or equal to Y;

wherein P is an integer greater than 1.

In this case, each of the P shares includes at least one OFDM symbol and each share includes the same number of OFDM symbols; note that P sections mean P arbitrary sections among Y sections, and P sections may be continuous or discontinuous.

B123, dividing the M OFDM symbols into Q parts, and distributing the Q parts to Q intervals, wherein Q is less than or equal to Y;

wherein Q is an integer greater than 1.

In this case, each of the Q parts includes at least one OFDM symbol; in addition, Q sections mean any Q of Y sections, and Q sections may be continuous or discontinuous.

It should be further noted that, when X is the total number of all OFDM symbols occupied by the first channel, and Y is the number of DMRSs that need to be placed in the first channel, the determining, according to the Y intervals, the transmission positions of the DMRSs includes:

and setting a transmission position of one DMRS in each interval.

Specifically, the setting manner in this case specifically includes one of the following:

c11, if the number of OFDM symbols occupied by the first interval is odd, in the second interval

Setting a DMRS at each OFDM symbol position;

where S is the number of OFDM symbols occupied by the first interval, and it should be further noted herein that the first interval refers to any one of Y intervals.

C12, if the number of the OFDM symbols occupied by the first interval is even, setting a DMRS at the S/2 th OFDM symbol position of the first interval, or setting a DMRS at the S/2+1 th OFDM symbol position of the first interval;

it should be noted that, when the number of OFDM symbols occupied by a plurality of intervals in the first channel is even, the DMRS setting manners used by all intervals in which the number of occupied OFDM symbols is even are the same, that is, if the number of OFDM symbols occupied by 3 intervals in the first channel is even, if one of the intervals adopts a manner of setting one DMRS at the S/2 th OFDM symbol position, the other intervals also adopt the manner; if one of the intervals adopts a mode of arranging one DMRS at the S/2+1 th OFDM symbol position, other intervals also adopt the mode.

It should be further noted that, when X is the number of OFDM symbols occupied by the first channel except for Y-1 DMRSs, and Y is the number of DMRSs that the first channel needs to place plus one, the determining, according to the Y intervals, the transmission positions of the DMRSs includes:

That is, this is the case where one DMRS is set at an OFDM symbol position after each of the first Y-1 intervals of the Y intervals, that is, one DMRS is set between every two intervals of the Y intervals, for a total of Y-1 DMRSs.

Scene three,

For example, 2 DMRSs are uniformly placed in one uplink transmission channel occupying 11 OFDM symbols.

In this application scenario, 11 OFDM symbols are first divided into two intervals, where each interval at least includes 5 OFDM symbols, and at this time, 1 OFDM symbol remains. And allocating the remaining 1 OFDM symbol to any interval, and then placing a DMRS in a position as middle as possible in the two intervals.

If the remaining 1 OFDM symbol is allocated to the first interval, the first interval includes 6 OFDM symbols, and the second interval includes 5 OFDM symbols. Placing the first DMRS at a third (shown as a in FIG. 9) or a fourth (shown as b in FIG. 9) OFDM symbol position of the first interval, and placing the second DMRS at a third OFDM symbol position of the second interval.

If the remaining one OFDM symbol is allocated to the second interval, the first interval includes 5 OFDM symbols, and the second interval includes 6 OFDM symbols. Placing the first DMRS at a third OFDM symbol position of the first interval, and placing the second DMRS at a third (as shown in a in FIG. 10) or a fourth (as shown in b in FIG. 10) symbol position of the second interval.

In fig. 9 and 10, white-dot filled boxes represent DMRSs, and black-dot filled boxes represent uplink traffic information or UCI.

It should be noted that, in this application scenario, it is not distinguished whether the uplink transmission channel is a PUSCH or a PUCCH, and after the DMRS transmission position in one slot is determined, the same DMRS pattern is used for all slots for performing joint channel estimation.

Scene four,

For example, 4 DMRSs are uniformly placed in two uplink transmission channels for joint channel estimation, and one uplink transmission channel occupies 11 OFDM symbols. In this application scenario, 22 OFDM symbols are first divided into 4 intervals, each of which contains at least 5 OFDM symbols, and at this time, 2 OFDM symbols remain, the remaining 2 OFDM symbols are allocated to one or more intervals, and then a DMRS is placed in the four intervals as middle as possible.

If all the remaining 2 OFDM symbols are allocated to the first interval, the first interval includes 7 OFDM symbols, and the second interval, the third interval, and the fourth interval include 5 OFDM symbols. At this time, as shown in a of fig. 11, the first DMRS is placed at a fourth OFDM symbol position in the first interval, the second DMRS is placed at a third OFDM symbol position in the second interval, the third DMRS is placed at a third OFDM symbol position in the third interval, and the fourth DMRS is placed at a third OFDM symbol position in the fourth interval. Similarly, all of the remaining 2 OFDM symbols may be allocated to the second interval, the third interval, or the fourth interval, which is not described in detail in this embodiment.

Optionally, if the remaining 2 OFDM symbols are divided into two parts and allocated to the first interval and the second interval respectively, the first interval and the second interval contain 6 OFDM symbols, and the third interval and the fourth interval contain 5 OFDM symbols. At this time, the OFDM symbol position occupied by the DMRS in each interval is the same as the application scenario, and in this application scenario, only one case is given as b in fig. 11, that is, the first DMRS is placed at the third OFDM symbol position in the first interval, the second DMRS is placed at the third OFDM symbol position in the second interval, the third DMRS is placed at the third OFDM symbol position in the third interval, and the fourth DMRS is placed at the third OFDM symbol position in the fourth interval. The remaining 2 OFDM symbols may be allocated to any two intervals of the four intervals in the same manner, and will not be described in detail herein.

When the number of OFDM symbols occupied by the plurality of intervals is an even number, the OFDM symbol positions where the plurality of DMRSs are placed are calculated in the same manner. For example, in the present application scenario, in a case where the first DMRS is placed at the third OFDM symbol position in the first interval, it is not allowed to place the second DMRS at the fourth OFDM symbol position in the second interval. Likewise, in this application scenario, whether the uplink channel is PUSCH or PUCCH is not distinguished.

In fig. 11, white-dot filling boxes represent DMRSs, and black-dot filling boxes represent uplink service information or UCI.

Scene five,

For example, 2 DMRSs are uniformly placed in one uplink transmission channel occupying 10 OFDM symbols. In this application scenario, the 8 OFDM symbols excluding the 2 DMRSs are first divided into three intervals, each interval at least includes 2 OFDM symbols, and then 2 OFDM symbols remain. The remaining 2 OFDM symbols are allocated to one or more intervals, and then DMRSs are placed at OFDM symbol positions subsequent to the first two intervals.

If all the remaining 2 OFDM symbols are allocated to the first interval, the first interval contains 4 OFDM symbols, and the second interval and the third interval contain 2 OFDM symbols. At this time, as shown in a in fig. 12, the first DMRS is placed after the first interval, i.e., at an OFDM symbol position with index #4, and the second DMRS is placed after the second interval, i.e., at an OFDM symbol position with index #7(4+2+ 1). The remaining 2 OFDM symbols may be all allocated to the second interval or the third interval, which will not be described in detail herein.

Optionally, if the remaining 2 OFDM symbols are divided into two parts and allocated to the first interval and the second interval respectively, the first interval and the second interval contain 3 OFDM symbols, and the third interval contains 2 OFDM symbols. At this time, as shown in b of fig. 12, the first DMRS is placed after the first interval, i.e., at an OFDM symbol position with index #3, and the second DMRS is placed after the second interval, i.e., at an OFDM symbol position with index #7(3+3+ 1). The remaining 2 OFDM symbols may be allocated to any two intervals of the three intervals in the same manner, and will not be described in detail herein.

In fig. 12, a white-dot filling box represents DMRS, and a black-dot filling box represents uplink service information or UCI.

In the application scenario, whether an uplink transmission channel is a PUSCH or a PUCCH is not distinguished, and after the position of a DMRS in one slot is determined, all slots for joint channel estimation adopt the same DMRS pattern.

A sixth scene,

For example, 4 DMRSs are uniformly placed in two uplink transmission channels for joint channel estimation, and one uplink transmission channel occupies 10 OFDM symbols. In this application scenario, 16 DMRSs other than 4 DMRSs are first divided into five intervals, each interval including at least 3 DMRS symbols, and at this time, 1 OFDM symbol remains. The remaining 1 OFDM symbol is allocated to any one interval, and then DMRSs are placed at OFDM symbol positions subsequent to the first four intervals.

In this application scenario, the remaining 1 OFDM symbol is allocated to a first interval, and then the first interval includes 4 OFDM symbols, and the second interval to a fifth interval include 3 OFDM symbols. At this time, as shown in fig. 13, the first DMRS is placed after the first segment, that is, at an OFDM symbol position with index #4, the second DMRS is placed after the second segment, that is, at an OFDM symbol position with index #8(4+3+1), the third DMRS is placed after the third segment, that is, at an OFDM symbol position with index #2(8+3+1-10) in the second uplink transmission channel, and the fourth DMRS is placed after the fourth segment, that is, at an OFDM symbol position with index #6(2+3+1) in the second uplink transmission channel. The remaining 1 OFDM symbol may be allocated to any one of the second to fifth intervals in the same manner, which will not be described in detail herein.

Likewise, in this application scenario, whether the uplink transmission channel is PUSCH or PUCCH is not distinguished.

In fig. 13, a white-dot filled box represents DMRS, and a black-dot filled box represents uplink service information or UCI.

It should be noted that, by using the DMRS pattern in one or a group of slots of an uplink transmission channel (PUSCH/PUCCH) in a combined channel estimation/DMRS bundling scenario, the embodiment of the present invention achieves a lower coding rate on the premise of ensuring accuracy of channel estimation, thereby achieving coverage enhancement.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a long term evolution (long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an LTE-a (long term evolution) system, a universal mobile system (universal mobile telecommunications system, UMTS), a Worldwide Interoperability for Mobile Access (WiMAX) system, a New Radio network (NR 5) system, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5GS), and the like.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

Corresponding to the sending of the terminal device, as shown in fig. 14, an embodiment of the present invention provides an information transmission method, which is executed by a network device, and includes:

step S1401, acquiring a transmission position of a demodulation reference signal (DMRS), wherein the transmission position of the DMRS is suitable for an uplink transmission channel to start joint channel estimation or DMRS binding function;

and S1402, receiving the uplink DMRS signal in the uplink transmission channel according to the transmission position of the DMRS.

acquiring the transmission position of the DMRS according to a first rule;

wherein K is an integer greater than or equal to 1.

selecting transmission positions of K DMRSs in a first DMRS pattern corresponding to an uplink transmission channel, wherein the number of the DMRSs in the first DMRS pattern is larger than or equal to K; or alternatively

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

the first channel is one of:

an uplink transmission channel;

Further, the dividing X OFDM symbols into Y intervals includes:

if M is 1, randomly allocating M OFDM symbols to an interval;

if M >1, allocating M OFDM symbols to at least one interval;

where M ═ mod (X, Y).

Further, the allocating the M OFDM symbols to at least one section includes:

allocating all the M OFDM symbols to an interval; or

wherein P, Q are each integers greater than 1.

and setting a transmission position of one DMRS in each interval.

Further, the setting of one DMRS in each interval includes:

if the number of OFDM symbols occupied by the first interval is odd, the first interval is

Setting a DMRS at each OFDM symbol position; or

wherein, S is the number of OFDM symbols occupied by the first interval.

Further, the uplink transmission channel includes: at least one of a physical uplink control channel and a physical uplink shared channel.

It should be noted that how the terminal device transmits and how the network device receives in the present invention, that is, the understanding of the terminal device and the network device is the same for transmission and reception.

It should be noted that all the descriptions regarding the network device in the above embodiments are applicable to the embodiment of the information transmission method, and the same technical effects can be achieved.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for providing services to a terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may be an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) System, may be a 5G Base Station (gbb) in a 5G network architecture (next evolution System), may be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico Base Station), and the like, which are not limited in the embodiments of the present application. In some network architectures, a network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple Input Multiple Output (MIMO) transmission may be performed between the network device and the terminal device by using one or more antennas, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-User MIMO (MU-MIMO). According to the form and the number of the root antenna combination, the MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, and can also be diversity transmission, precoding transmission, beamforming transmission, etc.

As shown in fig. 15, an embodiment of the present invention provides a terminal device 1500, including:

a first obtaining unit 1501, configured to obtain a transmission position of a demodulation reference signal DMRS, where the transmission position of the DMRS is suitable for an uplink transmission channel to start joint channel estimation or DMRS bundling function;

a transmitting unit 1502 is configured to transmit an uplink DMRS signal in an uplink transmission channel according to the transmission position of the DMRS.

Optionally, the first obtaining unit 1501 is configured to:

acquiring the transmission position of the DMRS according to a first rule;

wherein K is an integer greater than or equal to 1.

Optionally, the first obtaining unit 1501 is configured to:

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

the first channel is one of:

an uplink transmission channel;

Further, the dividing X OFDM symbols into Y intervals includes:

if M is 1, randomly allocating M OFDM symbols to an interval;

if M >1, allocating M OFDM symbols to at least one interval;

where M ═ mod (X, Y).

Further, the allocating the M OFDM symbols to at least one section includes:

allocating all M OFDM symbols to an interval; or

wherein P, Q are each integers greater than 1.

and setting a transmission position of one DMRS in each interval.

Further, the setting of one DMRS in each interval includes:

Setting a DMRS at each OFDM symbol position; or

wherein, S is the number of OFDM symbols occupied by the first interval.

It should be noted that the terminal device embodiment is a terminal device corresponding to the above method embodiment one to one, and all implementation manners in the above method embodiment are applicable to the terminal device embodiment, and the same technical effect can be achieved.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

As shown in fig. 16, an embodiment of the present invention further provides a terminal device, which includes a processor 1600, a transceiver 1610, a memory 1620, and a program stored in the memory 1620 and operable on the processor 1600; the transceiver 1610 is connected to the processor 1600 and the memory 1620 through a bus interface, wherein the processor 1600 is configured to read a program in the memory and execute the following processes:

A transceiver 1610 for receiving and transmitting data under the control of the processor 1600.

In fig. 16, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by the processor 1600 and various circuits of the memory represented by the memory 1620 linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1610 can be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, user interface 1630 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1620 may store data used by the processor 1600 in performing operations.

Optionally, the processor 1600 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field programmable Gate Array), or a CPLD (Co16plex program 1616able Logic Device), and may also adopt a multi-core architecture.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory may also be physically separated.

Further, the processor 1600, when executing the procedure for acquiring the transmission position of the demodulation reference signal DMRS, implements the following steps:

acquiring the transmission position of the DMRS according to a first rule;

wherein K is an integer greater than or equal to 1.

Further, the processor 1600, when executing the program for acquiring the transmission location of the demodulation reference signal DMRS, implements the following steps:

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

Each OFDM symbol, X, Y, is greater thanOr an integer equal to 1, wherein X is the total number of all OFDM symbols occupied by the first channel, and Y is the number of DMRSs required to be placed by the first channel; or alternatively

the first channel is one of:

an uplink transmission channel;

Further, the dividing X OFDM symbols into Y intervals includes:

if M is 1, randomly allocating M OFDM symbols to an interval;

if M >1, allocating M OFDM symbols to at least one interval;

where M ═ mod (X, Y).

Further, the allocating the M OFDM symbols to at least one section includes:

allocating all the M OFDM symbols to an interval; or alternatively

wherein P, Q are each integers greater than 1.

and setting a transmission position of one DMRS in each interval.

Further, the setting of one DMRS in each interval includes:

Setting a DMRS at each OFDM symbol position; or

wherein, S is the number of OFDM symbols occupied by the first interval.

It should be noted that, the terminal device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted here.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of an information transmission method applied to a terminal device. The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

As shown in fig. 17, an embodiment of the present invention provides a network device 1700, including:

a second obtaining unit 1701, configured to obtain a transmission position of a demodulation reference signal DMRS, where the transmission position of the DMRS is suitable for an uplink transmission channel to start joint channel estimation or DMRS bundling function;

a receiving unit 1702, configured to receive the uplink DMRS signal in the uplink transmission channel according to the transmission position of the DMRS.

Optionally, the second obtaining unit 1701 is configured to:

acquiring the transmission position of the DMRS according to a first rule;

wherein K is an integer greater than or equal to 1.

Optionally, the second obtaining unit 1701 is configured to:

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

Each of the OFDM symbols X, Y is an integer greater than or equal to 1, X is the total number of all OFDM symbols occupied by the first channel, and Y is the number of DMRSs that need to be placed in the first channel; or alternatively

the first channel is one of:

an uplink transmission channel;

Further, the dividing X OFDM symbols into Y intervals includes:

if M is 1, randomly allocating M OFDM symbols to an interval;

if M >1, allocating M OFDM symbols to at least one interval;

where M ═ mod (X, Y).

Further, the allocating the M OFDM symbols to at least one section includes:

allocating all the M OFDM symbols to an interval; or

wherein P, Q are each integers greater than 1.

and setting a transmission position of one DMRS in each interval.

Further, the setting of one DMRS in each interval includes:

Setting a DMRS at each OFDM symbol position; or

wherein, S is the number of OFDM symbols occupied by the first interval.

It should be noted that the network device embodiment is a network device corresponding to the above method embodiment one to one, and all implementation manners in the above method embodiment are applicable to the network device embodiment, and the same technical effect can be achieved.

As shown in fig. 18, an embodiment of the present invention further provides a network device, which includes a processor 1800, a transceiver 1810, a memory 1820, and a program stored in the memory 1820 and executable on the processor 1800; the transceiver 1810 is connected to the processor 1800 and the memory 1820 through a bus interface, wherein the processor 1800 is configured to read a program stored in the memory and execute the following processes:

A transceiver 1810 for receiving and transmitting data under the control of the processor 1800.

In fig. 18, among other things, the bus architecture may include any number of interconnected buses and bridges with various circuits including one or more processors, represented by the processor 1800, and memory, represented by the memory 1820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1810 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. The processor 1800 is responsible for managing the bus architecture and general processing, and the memory 1800 may store data used by the processor 1800 in performing operations.

The processor 1800 may be a Central Processing Unit (CPU), an application Specific I18 programmed Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD), and may also be a multi-core architecture.

Optionally, when the processor 1800 executes the procedure for acquiring the transmission position of the demodulation reference signal DMRS, the following steps are implemented:

acquiring the transmission position of the DMRS according to a first rule;

wherein K is an integer greater than or equal to 1.

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

the first channel is one of:

an uplink transmission channel;

Further, the dividing X OFDM symbols into Y intervals includes:

if M is 1, randomly allocating M OFDM symbols to an interval;

if M >1, allocating M OFDM symbols to at least one interval;

where M ═ mod (X, Y).

Further, the allocating the M OFDM symbols to at least one section includes:

allocating all the M OFDM symbols to an interval; or alternatively

wherein P, Q are each integers greater than 1.

and setting a transmission position of one DMRS in each interval.

Further, the setting of one DMRS in each interval includes:

Setting a DMRS at each OFDM symbol position; or

wherein, S is the number of OFDM symbols occupied by the first interval.

It should be noted that, the network device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated herein.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of an information transmission method applied to a network device. The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. An information transmission method, performed by a terminal device, comprising:

2. The method of claim 1, wherein the obtaining of the transmission position of a demodulation reference signal (DMRS) comprises:

acquiring the transmission position of the DMRS according to a first rule;

wherein K is an integer greater than or equal to 1.

3. The method of claim 2, wherein when no additional DMRS is configured for the uplink channel by higher layer signaling, the first rule comprises:

4. The method of claim 2, wherein when higher layer signaling configures an additional DMRS for an uplink channel, the first rule comprises:

Configuring DMRS transmission positions when K-1 extra DMRS are configured for an uplink transmission channel by adopting high-level signaling; or alternatively

5. The method of claim 1, wherein the obtaining of the transmission position of a demodulation reference signal (DMRS) comprises:

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

the first channel is one of:

an uplink transmission channel;

6. The method of claim 5, wherein the dividing the X OFDM symbols into Y intervals comprises:

if M is equal to 1, randomly allocating M OFDM symbols to one interval;

if M >1, allocating M OFDM symbols to at least one interval;

where M ═ mod (X, Y).

7. The method of claim 6, wherein said allocating the M OFDM symbols to at least one interval comprises:

allocating all the M OFDM symbols to an interval; or

wherein P, Q are each integers greater than 1.

8. The method of claim 5, wherein in a case where X is the total number of all OFDM symbols occupied by the first channel and Y is the number of DMRSs that need to be placed by the first channel, the determining the transmission positions of the DMRSs according to the Y intervals comprises:

and setting a transmission position of one DMRS in each interval.

9. The method of claim 8, wherein the setting of one DMRS in each interval comprises:

Setting a DMRS at each OFDM symbol position; or

wherein, S is the number of OFDM symbols occupied by the first interval.

10. The method of claim 5, wherein in a case where X is the number of OFDM symbols occupied by the first channel except for Y-1 DMRSs, and Y is one plus the number of DMRSs that the first channel needs to place, the determining the transmission positions of the DMRSs according to the Y intervals comprises:

11. The method of claim 1, wherein the uplink transport channel comprises: at least one of a physical uplink control channel and a physical uplink shared channel.

12. An information transmission method, performed by a network device, comprising:

13. The method of claim 12, wherein the obtaining of the transmission position of the demodulation reference signal (DMRS) comprises:

acquiring the transmission position of the DMRS according to a first rule;

wherein K is an integer greater than or equal to 1.

14. The method of claim 13, wherein when higher layer signaling does not configure an additional DMRS for an uplink channel, the first rule comprises:

15. The method of claim 13, wherein when higher layer signaling configures an additional DMRS for an uplink channel, the first rule comprises:

16. The method of claim 12, wherein the obtaining of the transmission position of the demodulation reference signal (DMRS) comprises:

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

the first channel is one of:

an uplink transmission channel;

17. The method of claim 16, wherein the dividing X OFDM symbols into Y intervals comprises:

if M is 1, randomly allocating M OFDM symbols to an interval;

if M >1, allocating M OFDM symbols to at least one interval;

where M ═ mod (X, Y).

18. The method of claim 17, wherein said allocating M OFDM symbols to at least one interval comprises:

allocating all the M OFDM symbols to an interval; or

wherein P, Q are each integers greater than 1.

19. The method of claim 16, wherein in a case where X is a total number of all OFDM symbols occupied by the first channel and Y is a number of DMRSs that need to be placed by the first channel, the determining the transmission positions of the DMRSs according to the Y intervals comprises:

and setting a transmission position of one DMRS in each interval.

20. The method of claim 19, wherein the setting of one DMRS in each interval comprises:

Setting a DMRS at each OFDM symbol position; or

wherein, S is the number of OFDM symbols occupied by the first interval.

21. The method of claim 16, wherein in a case where X is the number of OFDM symbols occupied by the first channel except for Y-1 DMRSs and Y is one plus the number of DMRSs that the first channel needs to place, the determining the transmission positions of the DMRSs according to the Y intervals comprises:

22. The method of claim 12, wherein the uplink transport channel comprises: at least one of a physical uplink control channel and a physical uplink shared channel.

23. A terminal device, comprising a memory, a transceiver, a processor:

24. The terminal device of claim 23, wherein the processor is configured to read a computer program in the memory for acquiring a transmission location of a demodulation reference signal (DMRS), and is configured to implement:

acquiring the transmission position of the DMRS according to a first rule;

wherein K is an integer greater than or equal to 1.

25. The terminal device of claim 23, wherein the processor is configured to read a computer program in the memory for acquiring a transmission location of a demodulation reference signal (DMRS), and is configured to implement:

acquiring the transmission position of the DMRS according to a second rule;

each interval at least comprising

the first channel is one of:

an uplink transmission channel;

26. A network device comprising a memory, a transceiver, a processor:

27. A terminal device, comprising:

28. A network device, comprising:

29. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing a processor to perform the method of any one of claims 1 to 22.