CN109803399B - Scheduling-free uplink signal transmission method, related equipment and system - Google Patents

Scheduling-free uplink signal transmission method, related equipment and system Download PDF

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CN109803399B
CN109803399B CN201711148026.0A CN201711148026A CN109803399B CN 109803399 B CN109803399 B CN 109803399B CN 201711148026 A CN201711148026 A CN 201711148026A CN 109803399 B CN109803399 B CN 109803399B
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dmrs
information
user terminal
data signal
transmitting
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CN109803399A (en
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李建军
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Abstract

The embodiment of the invention provides a scheduling-free uplink signal transmission method, related equipment and a system, wherein the method comprises the following steps: receiving uplink transmission parameters configured by a base station, wherein the uplink transmission parameters comprise data signal related information and DMRS information; and transmitting an uplink data signal according to the DMRS information and the data signal related information. The embodiment of the invention can avoid the interference between the uplink data signal based on scheduling-free transmission and the DMRS.

Description

Scheduling-free uplink signal transmission method, related equipment and system
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a scheduling-free uplink signal transmission method, related equipment and a system.
Background
Future 5G communication systems are capable of supporting massive links, e.g., narrowband internet of things (NB IoT). The data volume of most user terminals in a mass link is often small. A large amount of signaling information is needed if data transmission is also performed through scheduling and resource allocation information. Therefore, in order to improve system efficiency under the condition of massive links, a scheduling-free data transmission method becomes an important candidate.
However, in the data transmission scheme without scheduling, since there is no scheduling information, multiple ues may transmit signals using the same resource, and thus there is interference between signals transmitted by multiple ues. For example, there is interference between an uplink data Signal transmitted by a user terminal based on scheduling-free transmission and a Demodulation Reference Signal (DMRS) transmitted by another user terminal, where the DMRS is an important Reference Signal in communication transmission, and therefore, how to avoid the interference between the uplink data Signal transmitted by the user terminal based on scheduling-free transmission and the DMRS transmitted by another user terminal is a technical problem that needs to be solved urgently at present.
Disclosure of Invention
The embodiment of the invention provides a scheduling-free uplink signal transmission method, related equipment and a system, which aim to solve the problem of interference between an uplink data signal and a DMRS.
In order to solve the technical problem, the invention is realized as follows: a scheduling-free uplink signal transmission method is applied to a user terminal and comprises the following steps:
receiving uplink transmission parameters configured by a base station, wherein the uplink transmission parameters comprise data signal related information and DMRS information;
and transmitting an uplink data signal according to the DMRS information and the data signal related information.
In a first aspect, an embodiment of the present invention further provides a scheduling-free uplink signal transmission method, applied to a user terminal, including:
receiving uplink transmission parameters configured by a base station, wherein the uplink transmission parameters comprise data signal related information and DMRS information;
and transmitting an uplink data signal according to the DMRS information and the data signal related information.
In a second aspect, an embodiment of the present invention further provides a scheduling-free uplink signal transmission method, applied to a base station, including:
sending uplink transmission parameters to a user terminal, wherein the uplink transmission parameters comprise data signal related information and DMRS information;
and receiving an uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information.
In a third aspect, an embodiment of the present invention further provides a user terminal, including:
the receiving module is used for receiving uplink transmission parameters configured by a base station, wherein the uplink transmission parameters comprise data signal related information and DMRS information;
and the transmission module is used for transmitting the uplink data signal according to the DMRS information and the data signal related information.
In a fourth aspect, an embodiment of the present invention further provides a base station, including:
a sending module, configured to send an uplink transmission parameter to a user terminal, where the uplink transmission parameter includes data signal related information and DMRS information;
and the receiving module is used for receiving the uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information.
In a fifth aspect, an embodiment of the present invention further provides a user terminal, including: the scheduling-free uplink signal transmission method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the computer program is executed by the processor, the steps in the scheduling-free uplink signal transmission method at the user terminal side provided by the embodiment of the invention are realized.
In a sixth aspect, an embodiment of the present invention further provides a base station, including: the scheduling-free uplink signal transmission method comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps in the scheduling-free uplink signal transmission method at the base station side provided by the embodiment of the invention are realized.
In a seventh aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the scheduling-free uplink signal transmission method at the user terminal side provided in the embodiment of the present invention are implemented.
In an eighth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the scheduling-free uplink signal transmission method at the base station side provided in the embodiment of the present invention.
In a ninth aspect, an embodiment of the present invention further provides a scheduling-free uplink signal transmission system, including: the embodiment of the invention provides a user terminal and a base station.
In the embodiment of the invention, the uplink data signal is transmitted according to the DMRS information and the data signal related information in the uplink transmission parameter configured by the base station, so that the interference between the uplink data signal based on scheduling-free transmission and the DMRS can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a block diagram of a scheduling-free uplink signal transmission system to which an embodiment of the present invention is applicable;
fig. 2 is a flowchart of a scheduling-free uplink signal transmission method according to an embodiment of the present invention;
fig. 3 is a flowchart of another scheduling-free uplink signal transmission method according to an embodiment of the present invention;
fig. 4 is a flowchart of another scheduling-free uplink signal transmission method according to an embodiment of the present invention;
fig. 5 is a flowchart of another scheduling-free uplink signal transmission method according to an embodiment of the present invention;
fig. 6 is a schematic diagram of another scheduling-free uplink signal transmission method according to an embodiment of the present invention;
fig. 7 is a block diagram of a user terminal to which an embodiment of the present invention is applicable;
fig. 8 is a block diagram of a base station to which embodiments of the present invention are applicable;
fig. 9 is a schematic diagram of a hardware structure of a user terminal implementing various embodiments of the present invention;
fig. 10 is a block diagram of another base station to which an embodiment of the present invention is applicable.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 invention.
Referring to fig. 1, fig. 1 is a structural diagram of a scheduling-free uplink signal transmission system applicable in the embodiment of the present invention, and as shown in fig. 1, the system includes a user terminal 11 and a base station 12, where the user terminal 11 may be a ue (user equipment), 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 invention. The user terminal 11 may establish communication with the base station 12, wherein the network in the figure may represent that the user terminal 11 wirelessly establishes communication with the base station 12, and the base station 12 may be a base station such as an LTE eNB, a 5G NR NB, or the like.
It should be noted that the specific type of the base station 12 is not limited in the embodiments of the present invention, and the specific functions of the user terminal 11 and the base station 12 will be described in detail through the following embodiments.
Referring to fig. 2, fig. 2 is a flowchart of a scheduling-free uplink signal transmission method according to an embodiment of the present invention, where the method is applied to a user equipment, and as shown in fig. 2, the method includes the following steps:
step 201, receiving an uplink transmission parameter configured by a base station, where the uplink transmission parameter includes data signal related information and DMRS information.
The uplink transmission parameter may be configured by Radio Resource Control (RRC) signaling. The DMRS information may include DMRS information of the user terminal, for example: information indicating a DMRS sequence of a user terminal or information indicating a DMRS antenna port of a user terminal, and the like. Or the DMRS information may further include DMRS information of other user terminals besides the user terminal, for example: the total number of antenna ports used for transmitting the DMRS sequences, or information indicating resources that may be occupied by DMRS sequences of other user terminals, and so on.
The data signal related information may be related information of transmitting an uplink signal, for example: waveform, modulation and coding mode, frequency domain resource information, time domain resource information, and the like.
And step 202, transmitting an uplink data signal according to the DMRS information and the data signal related information.
The uplink data signal may be an uplink data symbol signal, and the uplink data signal is an uplink scheduling-free data signal.
The user terminal may determine the resources that may be occupied by the DMRS sequences of other user terminals according to the DMRS information, so that step 202 may send the uplink data signal according to the data signal related information on the resources other than the resources that may be occupied by the DMRS sequences of other user terminals. The sending of the uplink data signal according to the data signal related information may be sending the uplink data signal according to a waveform, a modulation and coding scheme, frequency domain resource information, time domain resource information, and the like.
Through the steps, the DMRS information can be added in the uplink transmission parameters, and the user terminal can determine the resources possibly occupied by the DMRS sequences of other user terminals according to the DMRS information, so that the resources possibly occupied by the DMRS sequences of other user terminals are considered when the uplink data signals are transmitted, and the interference between the uplink data signals transmitted based on the scheduling-free transmission and the DMRS sequences of other user terminals can be avoided.
It should be noted that the method provided in the embodiment of the present invention may be applied to a 5G system, but is not limited thereto, and is applicable to other communication systems as long as substantially the same function can be achieved, for example: but is not limited to application of 6G systems and the like.
In the embodiment of the invention, the uplink data signals are transmitted according to the DMRS information included in the uplink transmission parameters configured by the base station, so that the interference between the uplink data signals transmitted based on the scheduling-free transmission and the DMRS can be avoided.
Referring to fig. 3, fig. 3 is a flowchart of another scheduling-free uplink signal transmission method according to an embodiment of the present invention, where the method is applied to a user equipment, and as shown in fig. 3, the method includes the following steps:
step 301, receiving an uplink transmission parameter configured by a base station, where the uplink transmission parameter includes data signal related information and DMRS information, and the DMRS information includes indication information of a DMRS sequence of the user terminal.
The indication information may be indication information indicating a sequence number of a DMRS sequence of the user terminal.
Optionally, the DMRS sequence is one of a plurality of orthogonal sequences. For example: since each Resource Block (RB) may have 12 subcarriers, a general DMRS may have 12 orthogonal sequences. The 12 orthogonal sequences are obtained from a Zadoff-Chu sequence (CZ sequence) by 12 different cyclic shifts. In this embodiment, 8 different cyclic shift sequences may be selected from 12 orthogonal sequences as DMRS sequences for scheduling-free data transmission. Therefore, in this embodiment, the above indication information may be transferred by 3 bits. Specific sequence indications are shown in table 1:
TABLE 1 3-bit orthogonal sequence Listing of DMRS information domain of RRC under DFT-S-OFDM waveform
3 bits of information DMRS sequence cyclic shift (cyclic shift) values
000 0
001 2
010 3
011 4
100 6
101 8
110 9
111 10
The sequence number of the DMRS sequence of the user terminal can be indicated by the 3 bits.
Optionally, in this embodiment, the waveform for transmitting the uplink data signal is a Spread Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform, and the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
The DFT-s-OFDM waveform is single-carrier Frequency Division Multiple Access (FDMA), different ues use the same pilot resource, and their DMRSs are orthogonal to each other by orthogonal sequences. Of course, the DMRS sequences may also be transmitted using DFT-s-OFDM waveforms.
The DFT-s-OFDM waveform may be configured by a base station, for example: the data signal related information comprises one or more of the following items: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
The waveform parameter may be used to indicate a waveform used for uplink non-scheduled data transmission of the ue, for example: indicating a Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) waveform or a DFT-S-OFDM waveform.
The above-mentioned coding modulation scheme may be used to indicate a modulation scheme, a coding rate, a redundancy version, and the like used for uplink data transmission without scheduling of the user terminal.
The frequency resource parameter may be used to indicate frequency resource information allowed to be used for uplink non-scheduled data transmission of the user equipment, for example: the number and the position of Physical Resource Groups (PRG) are contained, or only PRG position information is contained.
The time resource parameter may be used to indicate the time information allowed to be used for uplink data transmission without scheduling of the user terminal, for example: information containing the Frame (Frame) number and slot (slot) number.
The downlink transmission parameters may specifically refer to table 2:
TABLE 2 data transmission RRC information field content table without scheduling
Figure BDA0001472893010000071
Figure BDA0001472893010000081
In this embodiment, corresponding transmission parameters may be configured for each user terminal through the uplink transmission parameters, and interference between uplink data signals of the user terminal and DMRS sequences of other user terminals may be avoided.
And 302, transmitting the DMRS sequence on the resource corresponding to the DMRS sequence and transmitting the uplink data signal on other resources except the resource corresponding to the DMRS sequence according to the indication information and the data signal related information.
The above-mentioned other resources except the resource corresponding to the DMRS sequence may be understood as time-domain resources except the time-domain resource to which the resource corresponding to the DMRS sequence belongs, for example: the RE corresponding to the DMRS sequence is in the 1 st OFDM symbol, and then the uplink data signal may be transmitted in OFDM symbols other than the 1 st OFDM symbol.
Because the uplink data signal and the DMRS sequence are not in the same time domain resource, and different user terminals transmit the DMRS sequence by using the same pilot frequency resource, the interference between the uplink data signal of the user terminal and the DMRS sequences of other user terminals can be avoided.
In addition, in this embodiment, the waveforms of the DMRS sequence and the uplink data signal may be DFT-S-OFDM waveforms. Therefore, different user terminals can be ensured to use the same pilot frequency resource to transmit the DMRS sequences, and the interference between uplink data signals of the user terminals and the DMRS sequences of other user terminals can be avoided.
In addition, the resource may be an RB in this embodiment. For example: and the resource corresponding to the DMRS sequence is RB corresponding to the DMRS sequence. Of course, other resources are also possible, and the embodiment of the present invention is not limited thereto.
In this embodiment, the time domain resources occupied by the uplink data signals may be different from time domain resources that may be occupied by DMRSs of other user terminals through the above steps, so that interference between the uplink data signals of the user terminals and the DMRS sequences of the other user terminals may be avoided.
Referring to fig. 4, fig. 4 is a flowchart of another scheduling-free uplink signal transmission method according to an embodiment of the present invention, where the method is applied to a user equipment, and as shown in fig. 4, the method includes the following steps:
step 401, receiving an uplink transmission parameter configured by a base station, where the uplink transmission parameter includes data signal related information and DMRS information, where the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except the user terminal.
The DMRS information of the user terminal may be used to indicate that the user terminal transmits DMRS sequence related information, for example: indication information of a DMRS antenna port or resource position information occupied by a DMRS sequence, and the like. And the DMRS information of other user terminals may be related information for indicating DMRS sequences of other user terminals, for example: and indication information of the total number of antenna ports for transmitting the DMRS sequences, resource position information occupied by the DMRS sequences of other user terminals, and the like.
DMRS information of another user terminal may also be referred to as DMRS information required for user terminal resource mapping (Rate mapping). For example: as shown in the table 3 below, the following examples,
TABLE 3 RRC DMRS information domain content Table under CP-OFDM waveform
Figure BDA0001472893010000091
Optionally, the information related to the data signal includes one or more of: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
For uplink transmission parameters, reference may be made to corresponding descriptions in the embodiment shown in fig. 3, which are not described herein again, and the same beneficial effects may be achieved.
Step 402, during resource mapping (Rate mapping), mapping the DMRS sequence to a resource corresponding to the DMRS information of the user terminal, mapping the uplink data signal to another resource other than the resource corresponding to the DMRS information of the other user terminal, and transmitting the DMRS sequence and the uplink data signal according to the data signal related information.
The resource corresponding to the DMRS information of the user terminal may be a resource indicated by the DMRS information of the user terminal, or a resource corresponding to the DMRS information of the user terminal.
The resources corresponding to the DMRS information of the other user terminals may be resources indicated by the DMRS information of the other user terminals or resources corresponding to the DMRS information of the other user terminals.
Through step 402, the uplink data signal can be mapped to other resources except the resources corresponding to the DMRS information of other user terminals, so that interference between the uplink data signal of the user terminal and the DMRS sequences of other user terminals can be avoided.
Optionally, the DMRS information of the user terminal includes indication information of DMRS antenna ports of the user terminal, and the DMRS information of the other user terminals includes a total number of antenna ports used for transmitting DMRS.
The DMRS antenna port of the user terminal is one of total antenna ports used for transmitting DMRS. For example: in the actual uplink scheduling-free data transmission of the user terminal, the user terminal can be set to send information by using only one antenna port, and different user terminals send information by using different antenna ports. Because the base station configures the total number of antenna ports for transmitting the DMRS (i.e., the total number of DMRS antenna ports for the user) to the user terminal, the user terminal can know the resource positions that the DMRSs of all the user terminals may occupy through the total number, and complete Rate mapping based on the position information. In addition, the indication information of the DMRS antenna port of the user terminal may be an antenna port number used in data transmission in which the user terminal itself is not scheduled, and the DMRS antenna port may be one of total DMRS antenna ports. Thus, the contents of table 3 may be indicated by the method of table 4.
TABLE 4 RRC DMRS information domain specific representation method 1 under CP-OFDM waveform
Figure BDA0001472893010000101
Through table 4, the user terminal can determine DMRS antenna port information used for uplink non-scheduled data transmission of itself and the total number of DMRS antenna ports. The resource position occupied by the DMRS sequence of the user terminal can be determined through the DMRS antenna port information used for uplink scheduling-free data transmission, and the resource position possibly occupied by the DMRS sequences of other user terminals can be determined through the total number of the antenna ports of the DMRS. The resource locations that may be occupied by DMRS sequences of other user terminals may be determined by pilot patterns (patterns), for example: the user terminal acquires a plurality of pilot patterns in advance, the pilot patterns correspond to the total number of different DMRS antenna ports, and after the total number of the DMRS antenna ports is determined, the user terminal can determine the pilot patterns corresponding to the user terminal, and further can determine the resource position corresponding to each DMRS antenna port, namely determine the resource positions possibly occupied by the DMRS sequences of other user terminals.
Optionally, in the above-mentioned Rate mapping, mapping the DMRS sequence to the resource corresponding to the DMRS information of the user terminal, mapping the uplink data signal to another resource other than the resource corresponding to the DMRS information of the other user terminal, and sending the DMRS sequence and the uplink data signal according to the data signal related information includes:
and during Rate mapping, mapping the DMRS sequence to resources corresponding to the DMRS antenna ports of the user terminal and mapping the uplink data signal to other resources except the resources corresponding to the total number of the antenna ports for transmitting the DMRS sequence according to pilot patterns obtained in advance and corresponding to the total number of the antenna ports for transmitting the DMRS sequence, and transmitting the DMRS sequence and the uplink data signal according to the relevant information of the data signal.
Through the steps, the mapping resource of the uplink data signal of the user terminal is different from the resource possibly occupied by the DMRS sequences of other user terminals, so that the interference of the uplink data signal of the user terminal and the DMRS sequences of other user terminals is avoided.
In addition, the DMRS for the uplink may include a Front-load DMRS (Front-load DMRS) and a supplemental DMRS (additional DMRS), and therefore, in some embodiments, the DMRS information of the user terminal includes: indicating information of a Front-load DMRS antenna port of the user terminal and/or indicating information of an Additional DMRS antenna port of the user terminal;
the DMRS information of the other user terminals includes: the number of antenna ports used for transmitting the Front-load DMRS sequence and/or the number of antenna ports used for transmitting the Additional DMRS sequence.
It should be noted that, for a certain DMRS (e.g., Additional DMRS), the DMRS may or may not exist. If the DMRS does not exist, the Total number of antenna ports (Total number of antenna ports) of the DMRS may be set to 0 to indicate the DMRS, and the indication information of the Additional DMRS antenna port of the user terminal may also be set to 0 to indicate the DMRS antenna port. The method comprises the steps that no Additional DMRS exists, the DMRS sequence transmitted by the user terminal is a Front-load DMRS sequence, the user terminal transmits the DMRS sequence according to indication information of a Front-load DMRS antenna port of the user terminal, and uplink data signals are transmitted according to the total number of the antenna ports used for transmitting the Front-load DMRS sequence.
In addition, in the present embodiment, the RRC configuration information of DMRS is shown in table 5.
TABLE 5 RRC DMRS information domain specific representation method under CP-OFDM waveform 2
Figure BDA0001472893010000121
By using the table 5, when the user terminal transmits the Front-load DMRS sequence and/or the Additional DMRS sequence, interference between the uplink data signal of the user terminal and the DMRS sequences of other user terminals can be avoided.
In addition, in this embodiment, the waveform for transmitting the uplink data signal may be a CP-OFDM waveform. The DMRS sequence and the uplink data signal under the CP-OFDM waveform may be transmitted in different resources in the same time domain, for example: transmitted on different REs of the same OFDM symbol. Of course, the DMRS sequences may also be transmitted using CP-OFDM waveforms.
In addition, the resource may be an RB in this embodiment. For example: and the resource corresponding to the DMRS sequence is RB corresponding to the DMRS sequence. Of course, other resources are also possible, and the embodiment of the present invention is not limited thereto.
In this embodiment, the DMRS sequence may be mapped to the resource corresponding to the DMRS information of the user terminal and the uplink data signal may be mapped to other resources other than the resource corresponding to the DMRS information of the other user terminal during Rate mapping, so that interference between the uplink data signal of the user terminal and the DMRS sequences of the other user terminals may be avoided.
Referring to fig. 5, fig. 5 is a flowchart of another scheduling-free uplink signal transmission method according to an embodiment of the present invention, which is applied to a base station, and as shown in fig. 5, the method includes the following steps:
step 501, sending uplink transmission parameters to a user terminal, wherein the uplink transmission parameters comprise data signal related information and DMRS information;
and 502, receiving an uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information.
Optionally, the DMRS information includes indication information of a DMRS sequence of the user terminal;
the receiving the uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information includes:
and receiving the DMRS sequence transmitted by the user terminal on the resource corresponding to the DMRS sequence according to the indication information and the data signal related information, and receiving the uplink data signal transmitted on other resources except the resource corresponding to the DMRS sequence.
Optionally, the waveform for transmitting the uplink data signal is a DFT-S-OFDM waveform, and the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
Optionally, the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except for the user terminal;
the receiving the uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information includes:
and receiving a DMRS sequence and the uplink data signal which are sent by the user terminal according to the relevant information of the data signal, wherein the DMRS sequence is mapped on the resource corresponding to the DMRS information of the user terminal, and the uplink data signal is mapped on other resources except the resource corresponding to the DMRS information of other user terminals.
Optionally, the DMRS information of the user terminal includes indication information of DMRS antenna ports of the user terminal, and the DMRS information of the other user terminals includes a total number of antenna ports used for transmitting DMRS.
Optionally, the DMRS sequence is mapped to resources corresponding to the DMRS antenna ports of the user equipment, and the uplink data signal is mapped to other resources than the resources corresponding to the total number of the antenna ports for transmitting the DMRS.
Optionally, the DMRS information of the user terminal includes: indicating information of a Front-load DMRS antenna port of the user terminal and/or indicating information of an Additional DMRS antenna port of the user terminal;
the DMRS information of the other user terminals includes: a total number of antenna ports used for transmitting the Front-load DMRS, and/or a total number of antenna ports used for transmitting the Additional DMRS.
Optionally, the waveform for transmitting the uplink data signal is a CP-OFDM waveform.
Optionally, the resource is an RB.
Optionally, the data signal related information includes one or more of the following items: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
It should be noted that, this embodiment is taken as an implementation of the base station corresponding to the embodiments shown in fig. 2 to fig. 4, and specific implementations thereof may refer to the relevant descriptions of the embodiments shown in fig. 2 to fig. 4 and achieve the same beneficial effects, and are not described herein again to avoid repeated descriptions.
Referring to fig. 6, fig. 6 is a schematic diagram of another uplink signal transmission method according to an embodiment of the present invention, as shown in fig. 6, including the following steps:
step 601, the base station configures uplink transmission parameters for the user terminal through RRC signaling, where the uplink transmission parameters include waveforms, coded modulation modes, transmitted frequency resources and time resources of scheduling-free uplink transmission of the user terminal, and DMRS information and other related information.
Step 602, the user terminal receives the uplink transmission parameter configured by the base station.
Step 603, the user terminal generates the uplink data signal from the data information symbol according to the uplink transmission parameter.
And step 604, the user terminal generates the DMRS sequence according to the DMRS information.
And step 605, the user terminal respectively maps the DMRS sequences and the uplink data signals to corresponding REs according to the DMRS information. Wherein, the RE mapped by the uplink data signal is an RE other than an RE that may be occupied by DMRS sequences of other user terminals.
Step 606, the user terminal transmits the DMRS sequence and the uplink data signal on the uplink and time resources configured by the RRC.
Referring to fig. 7, fig. 7 is a structural diagram of a ue to which the embodiment of the present invention is applicable, and as shown in fig. 7, a ue 700 includes:
a receiving module 701, configured to receive an uplink transmission parameter configured by a base station, where the uplink transmission parameter includes data signal related information and DMRS information;
a transmission module 702, configured to transmit an uplink data signal according to the DMRS information and the data signal related information.
Optionally, the DMRS information includes indication information of a DMRS sequence of the user terminal;
the transmission module 702 is specifically configured to transmit the DMRS sequence on the resource corresponding to the DMRS sequence according to the indication information and the data signal related information, and transmit the uplink data signal on another resource except the resource corresponding to the DMRS sequence.
Optionally, the waveform for transmitting the uplink data signal is a DFT-S-OFDM waveform, and the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
Optionally, the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except for the user terminal;
the transmission module 702 is specifically configured to map, during Rate mapping, the DMRS sequence to the resource corresponding to the DMRS information of the user terminal, map the uplink data signal to another resource other than the resource corresponding to the DMRS information of the other user terminal, and send the DMRS sequence and the uplink data signal according to the data signal related information.
Optionally, the DMRS information of the user terminal includes indication information of DMRS antenna ports of the user terminal, and the DMRS information of the other user terminals includes a total number of antenna ports used for transmitting DMRS.
Optionally, the transmission module 702 is specifically configured to, during Rate mapping, map the DMRS sequence to a resource corresponding to the DMRS antenna port of the user terminal according to a pilot pattern obtained in advance and corresponding to the total number of antenna ports used for transmitting the DMRS, map the uplink data signal to another resource other than the resource corresponding to the total number of antenna ports used for transmitting the DMRS sequence, and send the DMRS sequence and the uplink data signal according to the data signal related information.
Optionally, the DMRS information of the user terminal includes: indicating information of a Front-load DMRS antenna port of the user terminal and/or indicating information of an Additional DMRS antenna port of the user terminal;
the DMRS information of the other user terminals includes: a total number of antenna ports used for transmitting the Front-load DMRS, and/or a total number of antenna ports used for transmitting the Additional DMRS.
Optionally, the waveforms of the DMRS sequence and the uplink data signal are CP-OFDM waveforms.
Optionally, the resource is an RB.
Optionally, the data signal related information includes one or more of the following items: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
The base station provided in the embodiment of the present invention can implement each process implemented by the user terminal in the method embodiments of fig. 2 to fig. 4, and is not described herein again to avoid repetition, and can avoid interference between the uplink data signal of the user terminal and the DMRS sequences of other user terminals.
Referring to fig. 8, fig. 8 is a structural diagram of a base station to which the embodiment of the present invention is applicable, and as shown in fig. 8, a base station 800 includes:
a sending module 801, configured to send an uplink transmission parameter to a user equipment, where the uplink transmission parameter includes data signal related information and DMRS information;
a receiving module 802, configured to receive an uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information.
Optionally, the DMRS information includes indication information of a DMRS sequence of the user terminal;
the receiving module 802 is specifically configured to receive the DMRS sequence transmitted by the user terminal on the resource corresponding to the DMRS sequence according to the indication information and the data signal related information, and the uplink data signal transmitted on another resource other than the resource corresponding to the DMRS sequence.
Optionally, the waveform for transmitting the uplink data signal is a DFT-S-OFDM waveform, and the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
Optionally, the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except for the user terminal;
the receiving module 802 is specifically configured to receive a DMRS sequence and the uplink data signal, where the DMRS sequence is mapped to a resource corresponding to the DMRS information of the user terminal, and the uplink data signal is mapped to another resource other than the resource corresponding to the DMRS information of the other user terminal, where the DMRS sequence is sent by the user terminal according to the data signal related information.
Optionally, the DMRS information of the user terminal includes indication information of DMRS antenna ports of the user terminal, and the DMRS information of the other user terminals includes a total number of antenna ports used for transmitting DMRS sequences.
Optionally, the DMRS sequence is mapped to resources corresponding to the DMRS antenna ports of the user equipment, and the uplink data signal is mapped to other resources than the resources corresponding to the total number of the antenna ports for transmitting the DMRS.
Optionally, the DMRS information of the user terminal includes: indicating information of a Front-load DMRS antenna port of the user terminal and/or indicating information of an Additional DMRS antenna port of the user terminal;
the DMRS information of the other user terminals includes: a total number of antenna ports used for transmitting the Front-load DMRS, and/or a total number of antenna ports used for transmitting the Additional DMRS.
Optionally, the waveform for transmitting the uplink data signal is a CP-OFDM waveform.
Optionally, the resource is a resource block RB.
Optionally, the data signal related information includes one or more of the following items: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
The base station provided in the embodiment of the present invention can implement each process implemented by the base station in the method embodiment of fig. 5, and is not described here again to avoid repetition, and can avoid interference between the uplink data signal of the user terminal and the DMRS sequences of other user terminals.
Figure 9 is a schematic diagram of a hardware structure of a user terminal implementing various embodiments of the present invention,
the user terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910, and a power supply 911. Those skilled in the art will appreciate that the user terminal architecture shown in fig. 9 does not constitute a limitation of the user terminal, and that the user terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the user terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted user terminal, a wearable device, a pedometer, and the like.
A radio frequency unit 901, configured to receive an uplink transmission parameter configured by a base station, where the uplink transmission parameter is data signal related information and DMRS information; and transmitting an uplink data signal according to the DMRS information and the data signal related information.
Optionally, the DMRS information includes indication information of a DMRS sequence of the user terminal;
the transmitting, by the radio frequency unit 901, the uplink data signal according to the DMRS information and the data signal related information includes:
and transmitting the DMRS sequences on resources corresponding to the DMRS sequences and transmitting the uplink data signals on other resources except the resources corresponding to the DMRS sequences according to the indication information and the data signal related information.
Optionally, the waveform for transmitting the uplink data signal is a DFT-S-OFDM waveform, and the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
Optionally, the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except for the user terminal;
the transmitting, by the radio frequency unit 901, the uplink data signal according to the DMRS information and the data signal related information includes:
and during Rate mapping, mapping the DMRS sequence to a resource corresponding to the DMRS information of the user terminal, mapping the uplink data signal to other resources except the resource corresponding to the DMRS information of other user terminals, and sending the DMRS sequence and the uplink data signal according to the data signal related information.
Optionally, the DMRS information of the user terminal includes indication information of DMRS antenna ports of the user terminal, and the DMRS information of the other user terminals includes a total number of antenna ports used for transmitting DMRS.
Optionally, the mapping, performed by the radio frequency unit 901 during Rate mapping, of the DMRS sequence to the resource corresponding to the DMRS information of the user terminal, and mapping the uplink data signal to another resource other than the resource corresponding to the DMRS information of the other user terminal, and sending the DMRS sequence and the uplink data signal according to the data signal related information includes:
and during Rate mapping, mapping the DMRS sequence to resources corresponding to the DMRS antenna ports of the user terminal and mapping the uplink data signal to other resources except the resources corresponding to the total number of the antenna ports for transmitting the DMRS sequence according to a pilot pattern which is obtained in advance and corresponds to the total number of the antenna ports for transmitting the DMRS, and transmitting the DMRS sequence and the uplink data signal according to the relevant information of the data signal.
Optionally, the DMRS information of the user terminal includes: indicating information of a Front-load DMRS antenna port of the user terminal, and/or indicating information of a supplementary Additional DMRS antenna port of the user terminal;
the DMRS information of the other user terminals includes: a total number of antenna ports used for transmitting the Front-load DMRS, and/or a total number of antenna ports used for transmitting the Additional DMRS.
Optionally, the waveform for transmitting the uplink data signal is a CP-OFDM waveform.
Optionally, the resource is an RB.
Optionally, the data signal related information includes one or more of the following items: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
The user terminal 900 can avoid interference between the uplink data signal and the DMRS sequences of other user terminals.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 901 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 910; in addition, the uplink data is transmitted to the base station. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 901 can also communicate with a network and other devices through a wireless communication system.
The user terminal provides wireless broadband internet access to the user through the network module 902, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 903 may convert audio data received by the radio frequency unit 901 or the network module 902 or stored in the memory 909 into an audio signal and output as sound. Also, the audio output unit 903 may also provide audio output related to a specific function performed by the user terminal 900 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 903 includes a speaker, a buzzer, a receiver, and the like.
The input unit 904 is used to receive audio or video signals. The input Unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042, and the Graphics processor 9041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 906. The image frames processed by the graphic processor 9041 may be stored in the memory 909 (or other storage medium) or transmitted via the radio frequency unit 901 or the network module 902. The microphone 9042 can receive sounds and can process such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 901 in case of the phone call mode.
User terminal 900 also includes at least one sensor 905, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 9061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 9061 and/or backlight when the user terminal 900 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the user terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 905 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described in detail herein.
The display unit 906 is used to display information input by the user or information provided to the user. The Display unit 906 may include a Display panel 9061, and the Display panel 9061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 907 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the user terminal. Specifically, the user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 9071 (e.g., operations by a user on or near the touch panel 9071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 9071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 910, receives a command from the processor 910, and executes the command. In addition, the touch panel 9071 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 907 may include other input devices 9072 in addition to the touch panel 9071. Specifically, the other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, and the like), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 9071 may be overlaid on the display panel 9061, and when the touch panel 9071 detects a touch operation on or near the touch panel 9071, the touch panel is transmitted to the processor 910 to determine the type of the touch event, and then the processor 910 provides a corresponding visual output on the display panel 9061 according to the type of the touch event. Although in fig. 9, the touch panel 9071 and the display panel 9061 are two independent components to implement the input and output functions of the user terminal, in some embodiments, the touch panel 9071 and the display panel 9061 may be integrated to implement the input and output functions of the user terminal, which is not limited herein.
The interface unit 908 is an interface through which an external device is connected to the user terminal 900. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 908 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the user terminal 900 or may be used to transmit data between the user terminal 900 and external devices.
The memory 909 may be used to store software programs as well as various data. The memory 909 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 909 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 910 is a control center of the user terminal, connects various parts of the entire user terminal using various interfaces and lines, and performs various functions of the user terminal and processes data by running or executing software programs and/or modules stored in the memory 909 and calling data stored in the memory 909, thereby performing overall monitoring of the user terminal. Processor 910 may include one or more processing units; preferably, the processor 910 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 910.
The user terminal 900 may further include a power supply 911 (e.g., a battery) for supplying power to various components, and preferably, the power supply 911 may be logically connected to the processor 910 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.
In addition, the user terminal 900 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides a user terminal, which includes a processor 910, a memory 909, and a computer program stored in the memory 909 and capable of running on the processor 910, where the computer program, when executed by the processor 910, implements each process of the foregoing scheduling-free uplink signal transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
Referring to fig. 10, fig. 10 is a structural diagram of another base station to which the embodiment of the present invention is applicable, and as shown in fig. 10, the base station 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, and a bus interface, wherein:
the transceiver 1002 is configured to send an uplink transmission parameter to the user equipment, where the uplink transmission parameter includes data signal related information and DMRS information;
and receiving an uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information.
Optionally, the DMRS information includes indication information of a DMRS sequence of the user terminal;
the transceiver 1002 is configured to receive the uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information, and includes:
and receiving the DMRS sequence transmitted by the user terminal on the resource corresponding to the DMRS sequence according to the indication information and the data signal related information, and receiving the uplink data signal transmitted on other resources except the resource corresponding to the DMRS sequence.
Optionally, the waveform for transmitting the uplink data signal is a DFT-S-OFDM waveform, and the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
Optionally, the DMRS information includes DMRS information of the user terminal and DMRS information of other user terminals except for the user terminal;
the transceiver 1002 is configured to receive the uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information, and includes:
and receiving a DMRS sequence and the uplink data signal which are sent by the user terminal according to the relevant information of the data signal, wherein the DMRS sequence is mapped on the resource corresponding to the DMRS information of the user terminal, and the uplink data signal is mapped on other resources except the resource corresponding to the DMRS information of other user terminals.
Optionally, the DMRS information of the user terminal includes indication information of DMRS antenna ports of the user terminal, and the DMRS information of the other user terminals includes a total number of antenna ports used for transmitting DMRS.
Optionally, the DMRS sequence is mapped to resources corresponding to DMRS antenna ports of the user equipment, and the uplink data signal is mapped to other resources than the resource location corresponding to the total number of the antenna ports for transmitting the DMRS.
Optionally, the DMRS information of the user terminal includes: indicating information of a Front-load DMRS antenna port of the user terminal and/or indicating information of an Additional DMRS antenna port of the user terminal;
the DMRS information of the other user terminals includes: a total number of antenna ports used for transmitting the Front-load DMRS, and/or a total number of antenna ports used for transmitting the Additional DMRS.
Optionally, the waveform for transmitting the uplink data signal is a CP-OFDM waveform.
Optionally, the resource is an RB.
Optionally, the data signal related information includes one or more of the following items: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
The base station 900 can avoid interference between the uplink data signal based on scheduling-free transmission and the DMRS sequences of other user terminals.
Wherein the transceiver 1002 is configured to receive and transmit data under the control of the processor 1001, and the transceiver 1002 includes at least two antenna ports.
In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003 being 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 1002 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 1004 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 1001 is responsible for managing a bus architecture and general processes, and the memory 1003 may store data used by the processor 1001 in performing operations.
Preferably, an embodiment of the present invention further provides a base station, including a processor 1001, a memory 1003, and a computer program stored in the memory 1003 and capable of running on the processor 1001, where the computer program, when executed by the processor 1001, implements each process of the scheduling-free uplink signal transmission method embodiment, and can achieve the same technical effect, and is not described herein again to avoid repetition.
The embodiment of the invention also provides a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and when being executed by a processor, the computer program realizes each process of the scheduling-free uplink signal transmission method embodiment at the user terminal side.
The embodiment of the invention also provides a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and when being executed by a processor, the computer program realizes each process of the scheduling-free uplink signal transmission method embodiment of the base station side.
The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (37)

1. A scheduling-free uplink signal transmission method is applied to a user terminal, and is characterized by comprising the following steps:
receiving uplink transmission parameters configured by a base station, wherein the uplink transmission parameters comprise data signal related information and demodulation reference signal DMRS information;
transmitting an uplink data signal according to the DMRS information and the data signal related information;
the DMRS information comprises DMRS information of the user terminal and DMRS information of other user terminals except the user terminal, the DMRS information of the user terminal comprises indication information of DMRS antenna ports of the user terminal, and the DMRS information of the other user terminals comprises the total number of the antenna ports for transmitting DMRS;
the transmitting an uplink data signal according to the DMRS information and the data signal related information includes:
and when the resource mapping is carried out, the DMRS sequence is mapped to the resource corresponding to the DMRS information of the user terminal, the uplink data signal is mapped to other resources except the resource corresponding to the DMRS information of other user terminals, and the DMRS sequence and the uplink data signal are sent according to the relevant information of the data signal.
2. The method of claim 1, wherein the DMRS information comprises indication information of a DMRS sequence for the user terminal;
the transmitting an uplink data signal according to the DMRS information and the data signal related information includes:
and transmitting the DMRS sequences on resources corresponding to the DMRS sequences and transmitting the uplink data signals on other resources except the resources corresponding to the DMRS sequences according to the indication information and the data signal related information.
3. The method of claim 2, wherein a waveform transmitting the uplink data signal is a spread discrete fourier transform orthogonal frequency division multiplexing, DFT-S-OFDM, waveform, and the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
4. The method of claim 1, wherein the mapping, at the time of Rate mapping, the DMRS sequence to the resource corresponding to the DMRS information of the user terminal and the uplink data signal to another resource other than the resource corresponding to the DMRS information of the other user terminal, and transmitting the DMRS sequence and the uplink data signal according to the data-signal-related information comprises:
and during Rate mapping, mapping the DMRS sequence to resources corresponding to the DMRS antenna ports of the user terminal and mapping the uplink data signal to other resources except the resources corresponding to the total number of the antenna ports for transmitting the DMRS sequence according to a pilot pattern which is obtained in advance and corresponds to the total number of the antenna ports for transmitting the DMRS, and transmitting the DMRS sequence and the uplink data signal according to the relevant information of the data signal.
5. The method of claim 1, wherein the DMRS information for the user terminal comprises: indicating information of a Front-load DMRS antenna port of the user terminal, and/or indicating information of a supplementary Additional DMRS antenna port of the user terminal;
the DMRS information of the other user terminals includes: a total number of antenna ports used for transmitting the Front-load DMRS, and/or a total number of antenna ports used for transmitting the Additional DMRS.
6. The method of claim 3, wherein the waveform transmitting the uplink data signal is a Cyclic Prefix (CP) -OFDM waveform.
7. The method of claim 1 or 2, wherein the resources are resource blocks, RBs.
8. The method of claim 1, wherein the data signal related information comprises one or more of: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
9. A scheduling-free uplink signal transmission method is applied to a base station, and is characterized by comprising the following steps:
sending uplink transmission parameters to a user terminal, wherein the uplink transmission parameters comprise data signal related information and DMRS information;
receiving an uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information;
the DMRS information comprises DMRS information of the user terminal and DMRS information of other user terminals except the user terminal, the DMRS information of the user terminal comprises indication information of DMRS antenna ports of the user terminal, and the DMRS information of the other user terminals comprises the total number of the antenna ports for transmitting DMRS;
the receiving the uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information includes:
and receiving a DMRS sequence and the uplink data signal which are sent by the user terminal according to the relevant information of the data signal, wherein the DMRS sequence is mapped on the resource corresponding to the DMRS information of the user terminal, and the uplink data signal is mapped on other resources except the resource corresponding to the DMRS information of other user terminals.
10. The method of claim 9, wherein the DMRS information comprises indication information of a DMRS sequence for the user terminal;
the receiving the uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information includes:
and receiving the DMRS sequence transmitted by the user terminal on the resource corresponding to the DMRS sequence according to the indication information and the data signal related information, and receiving the uplink data signal transmitted on other resources except the resource corresponding to the DMRS sequence.
11. The method of claim 10, wherein a waveform transmitting the uplink data signal is a DFT-S-OFDM waveform, and the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
12. The method of claim 9, wherein the DMRS sequences map resources corresponding to DMRS antenna ports of the user terminal, and wherein the uplink data signals map other resources than the resources corresponding to the total number of antenna ports used for transmission of the DMRS.
13. The method of claim 9, wherein the DMRS information for the user terminal comprises: indicating information of a Front-load DMRS antenna port of the user terminal and/or indicating information of an Additional DMRS antenna port of the user terminal;
the DMRS information of the other user terminals includes: a total number of antenna ports used for transmitting the Front-load DMRS, and/or a total number of antenna ports used for transmitting the Additional DMRS.
14. The method of claim 9, wherein the waveform transmitting the uplink data signal is a CP-OFDM waveform.
15. The method of claim 9 or 10, wherein the resource is an RB.
16. The method of claim 9, wherein the data signal related information includes one or more of: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
17. A user terminal, comprising:
the receiving module is used for receiving uplink transmission parameters configured by a base station, wherein the uplink transmission parameters comprise data signal related information and DMRS information;
the transmission module is used for transmitting an uplink data signal according to the DMRS information and the data signal related information;
the DMRS information comprises DMRS information of the user terminal and DMRS information of other user terminals except the user terminal, the DMRS information of the user terminal comprises indication information of DMRS antenna ports of the user terminal, and the DMRS information of the other user terminals comprises the total number of the antenna ports for transmitting DMRS;
the transmission module is specifically configured to map the DMRS sequence to a resource corresponding to the DMRS information of the user terminal and map the uplink data signal to another resource other than the resource corresponding to the DMRS information of the other user terminal during Rate mapping, and send the DMRS sequence and the uplink data signal according to the data signal related information.
18. The user terminal of claim 17, wherein the DMRS information comprises indication information of a DMRS sequence for the user terminal;
the transmission module is specifically configured to transmit the DMRS sequence on the resource corresponding to the DMRS sequence according to the indication information and the data signal related information, and transmit the uplink data signal on another resource other than the resource corresponding to the DMRS sequence.
19. The user terminal of claim 18, wherein a waveform transmitting the uplink data signal is a DFT-S-OFDM waveform, and the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
20. The ue of claim 17, wherein the transmission module is specifically configured to, during Rate mapping, map the DMRS sequence to a resource corresponding to the DMRS antenna port of the ue according to a pilot pattern obtained in advance and corresponding to a total number of antenna ports used for transmitting the DMRS, and map the uplink data signal to another resource other than the resource corresponding to the total number of antenna ports used for transmitting the DMRS sequence, and send the DMRS sequence and the uplink data signal according to the data signal related information.
21. The user terminal of claim 17, wherein the DMRS information for the user terminal comprises: indicating information of a Front-load DMRS antenna port of the user terminal and/or indicating information of an Additional DMRS antenna port of the user terminal;
the DMRS information of the other user terminals includes: a total number of antenna ports used for transmitting the Front-load DMRS, and/or a total number of antenna ports used for transmitting the Additional DMRS.
22. The user terminal of claim 17, wherein the waveform transmitting the uplink data signal is a CP-OFDM waveform.
23. The user terminal of claim 17 or 18, wherein the resource is an RB.
24. The user terminal of claim 17, wherein the data signal related information includes one or more of: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
25. A base station, comprising:
a sending module, configured to send an uplink transmission parameter to a user terminal, where the uplink transmission parameter includes data signal related information and DMRS information;
a receiving module, configured to receive an uplink data signal transmitted by the user terminal according to the DMRS information and the data signal related information;
the DMRS information comprises DMRS information of the user terminal and DMRS information of other user terminals except the user terminal, the DMRS information of the user terminal comprises indication information of DMRS antenna ports of the user terminal, and the DMRS information of the other user terminals comprises the total number of the antenna ports for transmitting DMRS;
the receiving module is specifically configured to receive a DMRS sequence and the uplink data signal that are sent by the user terminal according to the data signal related information, where the DMRS sequence is mapped to a resource corresponding to the DMRS information of the user terminal, and the uplink data signal is mapped to another resource other than the resource corresponding to the DMRS information of the other user terminal.
26. The base station of claim 25, wherein the DMRS information comprises indication information of a DMRS sequence for the user terminal;
the receiving module is specifically configured to receive the DMRS sequence transmitted by the user terminal on the resource corresponding to the DMRS sequence according to the indication information and the data signal related information, and the uplink data signal transmitted on another resource other than the resource corresponding to the DMRS sequence.
27. The base station of claim 26, wherein a waveform transmitting the uplink data signal is a DFT-S-OFDM waveform, and the indication information of the DMRS sequence is a sequence number of the DMRS sequence.
28. The base station of claim 25, wherein the DMRS sequences map resources corresponding to DMRS antenna ports of the user terminal, and wherein the uplink data signals map other resources than the resources corresponding to the total number of antenna ports used for transmission of the DMRS.
29. The base station of claim 25, wherein the DMRS information for the user terminal comprises: indicating information of a Front-load DMRS antenna port of the user terminal and/or indicating information of an Additional DMRS antenna port of the user terminal;
the DMRS information of the other user terminals includes: a total number of antenna ports used for transmitting the Front-load DMRS, and/or a total number of antenna ports used for transmitting the Additional DMRS.
30. The base station of claim 25, wherein the waveform transmitting the uplink data signal is a CP-OFDM waveform.
31. The base station according to claim 25 or 26, characterized in that said resources are resource blocks, RBs.
32. The base station of claim 25, wherein the data signal related information includes one or more of: waveform parameters, a coding modulation mode, frequency resource parameters and time resource parameters.
33. A user terminal, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps in the method of scheduling free upstream signal transmission according to any of claims 1 to 8.
34. A base station, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps in the method of scheduling free upstream signal transmission according to any of claims 9 to 16.
35. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for scheduling-free upstream signal transmission according to any one of claims 1 to 8.
36. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for scheduling-free upstream signal transmission according to any one of claims 9 to 16.
37. A scheduling-free uplink signal transmission system, comprising: the user terminal of any of claims 17 to 24 and the base station of any of claims 25 to 32; or
The method comprises the following steps: the user terminal according to claim 33 and the base station according to claim 34.
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