CN110381582B

CN110381582B - Signal transmission method, related equipment and system

Info

Publication number: CN110381582B
Application number: CN201810326393.3A
Authority: CN
Inventors: 李建军
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-04-12
Filing date: 2018-04-12
Publication date: 2021-12-10
Anticipated expiration: 2038-04-12
Also published as: WO2019196586A1; CN110381582A

Abstract

The embodiment of the invention provides a signal transmission method, related equipment and a system, wherein the method comprises the following steps: receiving DCI sent by a base station; and transmitting an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI. The embodiment of the invention can realize uplink data transmission in a non-orthogonal multiple access mode, and improve the number of simultaneously accessed terminals and the performance of a communication system.

Description

Signal transmission method, related equipment and system

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a signal transmission method, a related device, and a system.

Background

In an existing Long Term Evolution (LTE) system, when an uplink needs to transmit new data, interference between uplink signals of different terminals is avoided, and a base station allocates completely different time and frequency resources to the different terminals, that is, resources used by the different terminals are Orthogonal, which may be referred to as Orthogonal Multiple Access (OMA). In this technique, in order to avoid collision between uplink signals of different terminals, communication needs to be performed based on scheduling and resource allocation information of a base station.

However, in the fifth future generation (5)^thgeneration, 5G) communication system, it is necessary to support a large number of terminals for communication while supporting mass links, so as to reduce service delay. If the OMA mode is used for communication, the number of terminals accessed simultaneously is small, and the performance of the communication system is low.

Disclosure of Invention

Embodiments of the present invention provide a signal transmission method, a related device, and a system, so as to solve the problems in the prior art that the number of terminals simultaneously accessed is small, and the performance of a communication system is low.

In a first aspect, an embodiment of the present invention provides a signal transmission method, applied to a terminal, including:

receiving Downlink Control Information (DCI) sent by a base station;

and transmitting an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI.

In a second aspect, an embodiment of the present invention provides a signal transmission method, applied to a base station, including:

transmitting DCI to the terminal;

and receiving an uplink signal sent by the terminal by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI.

In a third aspect, an embodiment of the present invention provides a terminal, including:

a first receiving module, configured to receive downlink control information DCI sent by a base station;

and a sending module, configured to send an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI.

In a fourth aspect, an embodiment of the present invention provides a base station, including:

a first sending module, configured to send DCI to a terminal;

and the receiving module is used for receiving an uplink signal sent by the terminal by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI.

In a fifth aspect, an embodiment of the present invention provides a terminal, including: the signal transmission method comprises a memory, a processor and a signal transmission program which is stored on the memory and can run on the processor, wherein the signal transmission program realizes the steps in the signal transmission method at the terminal side provided by the embodiment of the invention when being executed by the processor.

In a sixth aspect, an embodiment of the present invention provides a base station, including: the signal transmission program is stored on the memory and can run on the processor, and when being executed by the processor, the signal transmission program realizes the steps in the signal transmission method at the base station side provided by the embodiment of the invention.

In a seventh aspect, an embodiment of the present invention provides a signal transmission system, which is characterized by including the terminal and the base station provided in the embodiment of the present invention.

In an eighth aspect, an embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores a signal transmission program, and the signal transmission program, when executed by a processor, implements the steps of the signal transmission method on the terminal side provided in the embodiment of the present invention, or the signal transmission program, when executed by the processor, implements the steps of the signal transmission method on the base station side provided in the embodiment of the present invention.

The embodiment of the invention can realize the uplink data transmission in the non-orthogonal multiple access mode by sending the uplink signal on the non-orthogonal multiple access data transmission physical resource indicated by the base station, and improve the number of simultaneously accessed terminals and the performance of a communication system.

Drawings

Fig. 1 is a block diagram of a signal transmission system to which an embodiment of the present invention is applicable;

fig. 2 is a flowchart of a signal transmission method according to an embodiment of the present invention;

fig. 3 is a flowchart of another signal transmission method provided by the embodiment of the present invention;

fig. 4 is a schematic diagram of a sequence number of a multiple access identifier according to an embodiment of the present invention;

fig. 5 is a flowchart of another signal transmission method provided by the embodiment of the present invention;

fig. 6 is a flowchart of another signal transmission method according to an embodiment of the present invention;

fig. 7 is a block diagram of a terminal to which the embodiment of the present invention is applied;

fig. 8 is a block diagram of another terminal to which an embodiment of the present invention is applied;

fig. 9 is a block diagram of another terminal to which the embodiment of the present invention is applied;

fig. 10 is a block diagram of a base station to which the embodiment of the present invention is applied;

fig. 11 is a block diagram of another base station to which an embodiment of the present invention is applied;

fig. 12 is a block diagram of another terminal to which an embodiment of the present invention is applied;

fig. 13 is a block diagram of another base station to which the embodiment of the present invention is applied.

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 signal transmission system to which an embodiment of the present invention is applicable, and as shown in fig. 1, the signal transmission system includes a terminal 11 and a base station 12, where the terminal may be a User Equipment (UE) or other terminal Equipment, for example: it should be noted that, in the embodiment of the present invention, a specific type of the terminal 11 is not limited, and the terminal may be a terminal-side Device such as 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). The base station 12 may be a 5G base station (e.g., a gNB, a 5G NR NB), or may be a 4G base station (e.g., an eNB), or may be a 3G base station (e.g., an NB), and the like, and it should be noted that a specific type of the base station 12 is not limited in this embodiment of the present invention.

It should be noted that the specific functions of the terminal 11 and the base station 12 are described in detail through the following embodiments.

Referring to fig. 2, fig. 2 is a flowchart of a signal transmission method according to an embodiment of the present invention, where the method is applied to a terminal, and as shown in fig. 2, the method includes the following steps:

step 201, receiving DCI transmitted by a base station.

The DCI may be scheduling information for allocating resources configured by the base station for the terminal when the terminal transmits uplink information, so that the terminal may perform transmission according to the DCI. The DCI may be DCI format 0_3(DCI format 0_3) defined in the embodiment of the present invention, and of course, the DCI is not limited thereto, and may be DCI of other formats.

Step 202, using the non-orthogonal multiple access data transmission physical resource indicated by the DCI, sending an uplink signal to the base station.

The non-orthogonal multiple access data transmission physical resource may be understood as a physical resource for the terminal to perform non-orthogonal transmission, for example: and a Physical Resource Block (PRB) for non-orthogonal transmission. The DCI may be indicated by information such as resource allocation information, a flag, or a sequence number of a non-orthogonal multiple access data transmission physical resource. And the non-orthogonal multiple access data transmission physical resource may be one or more non-orthogonal multiple access data transmission physical resources indicated by the DCI.

After receiving the DCI, the terminal can determine the non-orthogonal multiple access data transmission physical resource through the information content in the DCI, and then sends an uplink signal on the non-orthogonal multiple access data transmission physical resource, so that uplink data transmission in a non-orthogonal multiple access mode is realized, the number of terminals accessed simultaneously can be increased, the access capability of a communication system is improved, massive terminal access is provided, and the performance of the communication system is improved.

It should be noted that, in the embodiment of the present invention, the method described above may be applied to the terminal shown in fig. 1. In addition, the method can be applied to a 5G system, an LTE system and a scene of applying multi-carrier to Code Division Multiple Access (CDMA) technology for uplink transmission, and the method can improve the number of terminals accessed simultaneously, improve the Access capability of a communication system, provide massive terminal Access and further improve the performance of the communication system.

The embodiment of the invention can realize the uplink data transmission in a non-orthogonal multiple access mode by indicating the base station to transmit the uplink signal to the base station on the non-orthogonal multiple access data transmission physical resource, and improve the number of simultaneously accessed terminals and the performance of a communication system.

Referring to fig. 3, fig. 3 is a flowchart of another signal transmission method according to an embodiment of the present invention, where the method is applied to a terminal, and as shown in fig. 3, the method includes the following steps:

step 301, receiving DCI sent by a base station, where the DCI is used to indicate a Multiple Access identifier (MA signature).

Of course, the MA signature may also be translated into a multiple access identifier, that is, in the embodiment of the present invention, the multiple access identifier may also be referred to as a multiple access identifier.

Step 302, transmitting an uplink signal to the base station by using a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier indicated by the DCI.

Through

steps

301 and 302, configuring a corresponding multiple access identifier for each non-orthogonal multiple access data transmission physical resource, for example: each set of non-orthogonal multiple access data transmission physical resource corresponds to a multiple access identifier, so that the resource allocation of the non-orthogonal transmission of the terminal can be realized only by indicating the multiple access identifier in the DCI, the signaling overhead of the DCI can be reduced, and the scheduled non-orthogonal multiple access uplink transmission based on the extremely low control signaling overhead is realized.

As an optional embodiment, the DCI includes multiple access identifier allocation information, where the multiple access identifier allocation information is used to indicate one or more multiple access identifiers, and different multiple access identifiers have different sequence numbers.

In this embodiment, the non-orthogonal multiple access data transmission physical resource corresponding to one or more multiple access identifiers can be allocated to the terminal through the multiple access identifier allocation information, and in addition, because different multiple access identifiers have different serial numbers, the multiple access identifier allocation information only needs to carry the serial numbers of one or more multiple access identifiers, so that the non-orthogonal transmission resource allocation to the terminal can be realized, the signaling overhead of DCI can be reduced, and further, the scheduled non-orthogonal multiple access uplink transmission can be realized with extremely low control signaling overhead.

Optionally, when the multiple access identifier allocation information is used to indicate a multiple access identifier, the multiple access identifier allocation information includes a sequence number of the multiple access identifier indicated by the multiple access identifier allocation information;

in the embodiment, the serial number of the multi-access identifier corresponding to the allocated non-orthogonal multi-access data transmission physical resource can be directly carried by the multi-access identifier allocation information, so that the allocated non-orthogonal multi-access data transmission physical resource can be rapidly and directly determined by the terminal, and the transmission efficiency is improved.

For example: if only one multiple access identifier resource can be used for each non-orthogonal multiple access uplink transmission, the multiple access identifier allocation information only needs to indicate the sequence number of the multiple access identifier. If the physical resource base of the non-orthogonal multiple access transmission configured for the terminal through the configuration signaling corresponds to N multiple access identifications, the information field needs log₂(N) bits of information. If N is 8, the information indicated by the different bit value of the information field is as shown in table 1:

TABLE 1 indication of multiple Access identity assignment information

Optionally, when the multiple access identifier allocation information is used to indicate multiple access identifiers, the multiple access identifier allocation information includes an identifier number and an identifier sequence number, where the identifier number is the number of the multiple access identifiers indicated by the multiple access identifier allocation information, the identifier sequence number is the sequence number of one of the multiple access identifiers indicated by the multiple access identifier allocation information, and the sequence numbers of the multiple access identifiers indicated by the multiple access identifier allocation information are consecutive.

The identifier number may be a preset multiple access identifier number in a specific location, for example: a serial number of a start multiple access identifier of the multiple access identifiers, a serial number of an end multiple access identifier of the multiple access identifiers, or a serial number of a middle multiple access identifier of the multiple access identifiers.

Preferably, the identifier serial number is a serial number of an initial multiple access identifier in multiple access identifiers indicated by the multiple access identifier allocation information, and the initial multiple access identifier is a multiple access identifier with a smallest serial number in the multiple access identifiers;

alternatively, the first and second electrodes may be,

the identifier serial number is a serial number of an ending multiple access identifier in the multiple access identifiers indicated by the multiple access identifier allocation information, and the ending multiple access identifier is a multiple access identifier with a largest serial number in the multiple access identifiers.

In this embodiment, only the identifier serial number and the identifier number are indicated, so that the signaling overhead can be reduced.

It should be noted that, in the embodiment of the present invention, the non-orthogonal multiple access data transmission physical resource may also be referred to as a multiple access identifier resource (MA identifier resource), because the non-orthogonal multiple access data transmission physical resource corresponds to a multiple access identifier.

In this embodiment, it is possible to realize that the non-orthogonal multiple access uplink transmission can use multiple access identifier resources (MA identifier resources), that is, use non-orthogonal multiple access data transmission physical resources corresponding to multiple access identifiers. The multiple access identity allocation information needs to indicate the sequence numbers of all multiple access identities used for this transmission. If the sequence numbers of multiple access identities used for uplink transmission are consecutive, the multiple access identity assignment information may indicate the sequence numbers of multiple access identities via two sub-information fields, for example: one sub-information field indicates the sequence number of the initial multiple access identification resource, and the other sub-information field is used to indicate the number of multiple access identification resources (or the number of multiple access identifications) used for transmission, which can be shown in table 2:

TABLE 2 indication of multiple Access identity assignment information

Optionally, the multiple access identifier allocation information is used to indicate multiple access identifiers through a structure of a bitmap.

In this embodiment, if one or more multiple access identifier resources can be used for each non-orthogonal multiple access uplink transmission, the multiple access identifier allocation information may indicate sequence numbers of all multiple access identifier resources used for the transmission. If any multiple access identification resources can be used for uplink transmission, the multiple access identification allocation information can adopt a bitmap method to indicate the adopted multiple access identification resources. If there are N multiple access identities in the pool of non-orthogonal multiple access transmitted physical resources (or may be referred to as a set of non-orthogonal multiple access data transmission physical resources) configured for the terminal by the configuration signaling, the information field requires N bits of information. Wherein, if the kth bit is 1, it indicates that the kth multiple access identifier resource is used in the transmission. If the k bit is 0, it indicates that the k multiple access identification resource is not transmitted at this time. As shown in fig. 4, fig. 4 shows bitmap information of the multiple access identification allocation information when the 1 st, 2 nd and 6 th multiple access identification resources are selected when N is 8.

In this embodiment, the indication is performed in a bitmap manner, so that signaling overhead can be reduced.

As an optional embodiment, the DCI includes transmission parameters, where the transmission parameters include at least one of:

new data indication, modulation mode, coding rate, redundancy version and power control configuration;

wherein the new data indication is used for indicating to transmit new data or retransmit data.

It should be noted that, in the embodiment of the present invention, the new data may be understood as data that is initially transmitted by the terminal, that is, the data is data that is not transmitted by the terminal.

The modulation scheme and the coding rate are used to indicate a modulation scheme and a coding rate used for transmitting new data, and the power control configuration is used to indicate uplink power control, for example: transmit Power Control (TPC) commands.

In this embodiment, the sequence number indicating the multiple access identifier in the DCI and the transmission parameter may be implemented, so as to avoid excessive signaling transmission and save transmission resources.

The transmitting the uplink signal to the base station may include:

and sending an uplink signal to the base station according to the transmission parameter.

That is, the terminal performs transmission according to the transmission parameters indicated by the DCI, for example: and transmitting by adopting the modulation mode, the coding rate, the redundancy version and the power control configuration indicated by the DCI.

Preferably, the DCI is DCI format 0_3, which is shown in table 3:

table 3 DCI format 0_3 Contents Table

It should be noted that, if the non-orthogonal multiple access data transmission physical resource is configured with a modulation scheme, a coding rate, and a redundancy version in advance, the modulation scheme, the coding rate, and the redundancy version may not be configured in the transmission parameter, and if the non-orthogonal multiple access data transmission physical resource is not configured with a modulation scheme, a coding rate, and a redundancy version in advance, the modulation scheme, the coding rate, and the redundancy version may be configured in the transmission parameter.

As can be seen from table 1, compared with the prior art that DCI needs to indicate frequency resources, time resources, whether frequency hopping is used, and other contents, the embodiment can reduce the overhead of control signaling, thereby improving the efficiency of system transmission.

In the above embodiment, the multiple access identifier allocation information is used to indicate the sequence number of the multiple access identifier, which may be understood as that the multiple access identifier resource allocation content in table 1 implements the sequence number indicating one or more multiple access identifiers by indicating the related information of the multiple access identifier resource.

It should be noted that, in this embodiment, the DCI may implement resource allocation for non-orthogonal transmission by indicating the multiple access identifier, and implement resource allocation for non-orthogonal transmission by other means, for example: the DCI may also indicate frequency information of physical resources that the terminal transmits non-orthogonally, or the number of PRBs, and the like. In addition, the above-described embodiment that the DCI includes the transmission parameters may also be applied to the embodiment shown in fig. 2, and the same beneficial effects may be achieved, which is not described herein again.

As an optional implementation manner, the sending an uplink signal to the base station by using a non-orthogonal multiple access data transmission physical resource corresponding to a multiple access identifier indicated by the DCI includes:

according to the multiple access identifier indicated by the DCI, determining a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier from a pre-configured non-orthogonal multiple access data transmission physical resource set;

transmitting an uplink signal to the base station using the non-orthogonal multiple access data transmission physical resource

The preconfigured set of non-orthogonal multiple access data transmission physical resources may be configured before performing step 301. In this embodiment, the set of non-orthogonal multiple access data transmission physical resources may also be referred to as a physical resource pool for non-orthogonal multiple access transmission of the terminal.

In addition, because a non-orthogonal multiple access data transmission physical resource set for non-orthogonal transmission by the terminal is configured in advance, the base station only needs to indicate the serial number or other indication information of the non-orthogonal multiple access data transmission physical resource used by the terminal in the resource allocation process of non-orthogonal transmission, and then signaling overhead is reduced.

Optionally, each non-orthogonal multiple access data transmission physical resource in the non-orthogonal multiple access data transmission physical resource set is configured with a corresponding multiple access identifier, and each multiple access identifier is configured with corresponding resource configuration information.

Each non-orthogonal multiple access data transmission physical resource in the non-orthogonal multiple access data transmission physical resource set may be configured with a corresponding non-orthogonal access identifier (MA identifier). Each non-orthogonal access identifier is configured with a corresponding resource configuration, and each multiple access identifier is configured with resource configuration information used on an orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier. For example: each multiple access identifier corresponds to a specific frequency resource, and resource configuration information used on the corresponding frequency resource, for example: spreading code, pattern, power. In addition, information of a certain demodulation Reference Signal (DMRS) and Modulation scheme may be configured.

In this embodiment, each non-orthogonal multiple access data transmission physical resource is configured with a corresponding multiple access identifier, and each multiple access identifier is configured with corresponding resource configuration information, so that in the transmission process, the base station only needs to indicate the multiple access identifier corresponding to the non-orthogonal multiple access data transmission physical resource used by the terminal, and the terminal can directly transmit according to the resource configuration information corresponding to the multiple access identifier, that is, in the transmission process, the base station does not need to indicate the resource configuration information in DCI, thereby saving signaling overhead.

Optionally, before receiving the DCI sent by the base station, the method further includes:

and receiving a configuration signaling sent by the base station, wherein the configuration signaling is used for configuring the non-orthogonal multiple access data transmission physical resource set.

The configuration signaling may be Radio Resource Control (RRC) signaling, but is not limited thereto, and may also be other signaling, for example: and broadcasting signaling.

In this embodiment, the configuration signaling may be used to configure all the non-orthogonal multiple access data transmission physical resources of the terminal, that is, the physical resource pool for non-orthogonal multiple access transmission of the user, for the terminal, where the non-orthogonal multiple access data transmission physical resources are sent before the terminal performs non-orthogonal transmission. The configuration is carried out through the configuration signaling, so that flexible configuration can be realized, the additional matching of the non-orthogonal multiple access data transmission physical resource configured for the terminal and the service of the terminal is realized, and the transmission performance of the communication system is further improved. Of course, in this embodiment, the non-orthogonal multiple access data transmission physical resource set may be configured in other manners, for example: the protocol is predefined, etc., and this is not a limitation.

Optionally, the configuring signaling includes: the method comprises the steps of frequency resource information, resource configuration information and a serial number of a multiple access identifier, wherein the frequency resource information is used for indicating frequency resources corresponding to the multiple access identifier;

the determining, according to the multiple access identifier indicated by the DCI, a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier from a pre-configured non-orthogonal multiple access data transmission physical resource set includes:

according to the serial number of the multiple access identifier, determining frequency resource information and resource configuration information corresponding to the multiple access identifier from a pre-configured non-orthogonal multiple access data transmission physical resource set;

the sending an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource comprises:

and sending an uplink signal to the base station according to the frequency resource information and the resource configuration information.

The frequency resource corresponding to the multiple access identifier may be a frequency resource that further defines a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier, that is, the non-orthogonal multiple access data transmission physical resource may be a limited non-orthogonal multiple access data transmission physical resource. And the resource configuration information may be related configuration information of the frequency resource. In addition, in the configuration signaling, frequency resource information corresponding to each multiple access identifier and resource configuration information corresponding to each multiple access identifier may be configured. Of course, in some scenarios, multiple access identities may correspond to the same resource configuration information, which is not limited herein.

Optionally, the resource configuration information includes at least one of the following:

spreading codes or sparse codes allowed to be used;

the power allowed to be used;

patterns (patterns) allowed to be used;

DMRSs allowed to be used;

DMRS antenna ports allowed to be used.

In the embodiment, the spread spectrum code, the sparse code, the power, the pattern, the DMRS antenna port, the modulation mode, the coding rate, and the redundancy version can be preconfigured through the configuration signaling, so that the base station does not need to configure the information for the terminal in the non-orthogonal transmission process, and the signaling overhead of the DCI in the signal transmission process can be reduced.

Further, the resource configuration information may further include: modulation scheme, coding rate, and redundancy version.

In this way, the modulation mode, the coding rate and the redundancy version can be configured in advance, so that the signaling overhead of the DCI in the signal transmission process can be reduced.

It should be noted that this embodiment may be implemented in combination with the embodiment of this embodiment that introduces DCI indicating transmission parameters, where the resource configuration and the transmission parameters may be disjoint, for example: the resource configuration includes a modulation scheme, a coding rate, and a redundancy version, and the transmission parameter may not include the modulation scheme, the coding rate, and the redundancy version. When the terminal transmits a signal, the terminal may transmit the signal according to the resource configuration information and the transmission parameter, for example: and performing uplink signal transmission by using one or more of a spreading code, a sparse code, power, a pattern, a DMRS antenna port, a modulation mode, a coding rate and a redundancy version in the resource configuration information and combining power control configuration in the transmission parameters.

The sending of the uplink signal to the base station according to the frequency resource information and the resource configuration information may be sending the uplink signal to the base station according to the resource configuration information corresponding to the multiple access identifier indicated by the DCI, using the frequency resource of the frequency resource information corresponding to the multiple access identifier.

In addition, in the present embodiment, different resource allocations such as DMRSs and DMRS antenna ports may be allocated for different waveforms. Preferably, taking the configuration signaling as RRC signaling as an example, the configuration signaling may be as shown in table 4:

table 4. table of contents of RRC configuration information field of multiple access identifier

Here, the resource block allocation information may be understood as the frequency resource information. And flexibly configuring the serial number of the multiple access identifier in the non-orthogonal multiple access data transmission physical resource set, the corresponding frequency resource information and the corresponding resource configuration information through the table content.

In the foregoing embodiment, it can be achieved that frequency resource information and resource configuration information are configured in advance through configuration signaling, so that in a non-orthogonal transmission process, a base station does not need to configure the information for a terminal, and signaling overhead of DCI in a signal transmission process can be reduced.

In this embodiment, the DCI is used to indicate the multiple access identifier to implement resource allocation for non-orthogonal transmission, so that signaling transmission overhead can be saved and performance of the communication system can be improved.

Referring to fig. 5, fig. 5 is a flowchart of another signal transmission method according to an embodiment of the present invention, where the method is applied to a base station, and as shown in fig. 5, the method includes the following steps:

step 501, sending DCI to a terminal;

step 502, receiving an uplink signal sent by the terminal using the non-orthogonal multiple access data transmission physical resource indicated by the DCI.

Optionally, the DCI is used to indicate a multiple access identifier;

the receiving an uplink signal transmitted by the terminal using the non-orthogonal multiple access data transmission physical resource indicated by the DCI includes:

and receiving an uplink signal sent by the terminal by using a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier indicated by the DCI.

Optionally, the DCI includes multiple access identifier allocation information, where the multiple access identifier allocation information is used to indicate one or more multiple access identifiers, and different multiple access identifiers have different sequence numbers.

when the multiple access identifier allocation information is used for indicating multiple access identifiers, the multiple access identifier allocation information includes an identifier number and an identifier sequence number, wherein the identifier number is the number of the multiple access identifiers indicated by the multiple access identifier allocation information, the identifier sequence number is the sequence number of one multiple access identifier in the multiple access identifiers indicated by the multiple access identifier allocation information, and the sequence numbers of the multiple access identifiers indicated by the multiple access identifier allocation information are continuous.

Optionally, the identifier serial number is a serial number of an initial multiple access identifier in multiple access identifiers indicated by the multiple access identifier allocation information, where the initial multiple access identifier is a multiple access identifier with a smallest serial number in the multiple access identifiers;

alternatively, the first and second electrodes may be,

Optionally, the DCI includes transmission parameters, where the transmission parameters include at least one of:

Optionally, the receiving the uplink signal sent by the terminal using the non-orthogonal multiple access data transmission physical resource indicated by the DCI includes:

and receiving an uplink signal which is transmitted by the terminal by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI and is sent according to the transmission parameter.

Optionally, the non-orthogonal multiple access data transmission physical resource is determined by the terminal from a pre-configured non-orthogonal multiple access data transmission physical resource set according to a multiple access identifier indicated by the DCI, and is a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier.

Optionally, before receiving the uplink signal sent by the terminal using the non-orthogonal multiple access data transmission physical resource indicated by the DCI, the method further includes:

and sending configuration signaling to the terminal, wherein the configuration signaling is used for configuring the non-orthogonal multiple access data transmission physical resource set.

receiving an uplink signal sent by the terminal according to the frequency resource information and the resource configuration information;

the frequency resource information and the resource configuration information are the frequency resource information and the resource configuration information which are determined by the terminal from the pre-configured non-orthogonal multiple access data transmission physical resource set according to the serial number of the multiple access identifier and correspond to the multiple access identifier.

spreading codes or sparse codes allowed to be used;

the power allowed to be used;

pattern allowed for use;

DMRSs allowed to be used;

DMRS antenna ports allowed to be used.

Optionally, the resource configuration information further includes: modulation scheme, coding rate, and redundancy version.

It should be noted that, this embodiment is used as an implementation of the base station corresponding to the embodiments shown in fig. 2 and fig. 3, and specific implementations thereof may refer to the relevant descriptions of the embodiments shown in fig. 2 and fig. 3 and achieve the same beneficial effects, and are not described herein again to avoid repeated descriptions.

Referring to fig. 6, fig. 6 is a flowchart of another 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 a non-orthogonal multiple access data transmission physical resource library which can be used by the terminal for the terminal through RRC.

Step 602, the terminal receives RRC.

The resource configuration in the RRC may include information of spreading code resources, pattern resources, power resources, and modulation schemes on multiple frequency resources and time resources for transmission. Meanwhile, the serial numbers can be distributed to different non-orthogonal multiple access data transmission physical resources according to a certain rule.

Step 603, the base station allocates physical resources for non-orthogonal multiple access data transmission to the terminal.

For example: when the terminal needs to send the uplink information, the base station firstly carries out scheduling and allocates corresponding non-orthogonal multiple access data transmission physical resources for the mobile user.

Step 604, the base station generates DCI format 0_3 according to the physical resource of the non-orthogonal multiple access data transmission.

This step may be that, in order for the base station to know the resources, the base station transmits uplink transmission-related control information to the user by using the newly defined DCI format 0_ 3. The DCI format 0_3 may refer to the DCI in the embodiment shown in fig. 2, which is not described herein again.

Step 605, the base station transmits the DCI format 0_ 3.

Step 606, the terminal detects the DCI format 0_3 and obtains the allocated physical resource for the non-orthogonal multiple access data transmission.

Step 607, the terminal transmits the signal.

The step may be that the terminal sends an uplink signal, for example: and according to the information of the DCI format 0_3, transmitting uplink information by using corresponding non-orthogonal multiple access data transmission physical resources and transmission parameters contained in the information, and then correspondingly receiving by the base station.

Referring to fig. 7, fig. 7 is a structural diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 7, a terminal 700 includes:

a first receiving module 701, configured to receive downlink control information DCI sent by a base station;

a sending module 702, configured to send an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI.

Optionally, the DCI is used to indicate a multiple access identifier;

the sending module 702 is specifically configured to send an uplink signal to the base station by using a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier indicated by the DCI.

alternatively, the first and second electrodes may be,

Optionally, the sending module 702 is specifically configured to transmit a physical resource by using non-orthogonal multiple access data corresponding to the multiple access identifier indicated by the DCI, and send an uplink signal to the base station according to the transmission parameter.

Optionally, as shown in fig. 8, the sending module 702 includes:

a determining submodule 7021, configured to determine, according to the multiple access identifier indicated by the DCI, a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier from a pre-configured non-orthogonal multiple access data transmission physical resource set;

a sending sub-module 7022, configured to send an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource.

Optionally, as shown in fig. 9, the method further includes:

a second receiving module 703 is configured to receive a configuration signaling sent by the base station, where the configuration signaling is used to configure the non-orthogonal multiple access data transmission physical resource set.

the determining submodule 7021 is specifically configured to determine, according to the serial number of the multiple access identifier, frequency resource information and resource configuration information corresponding to the multiple access identifier from a pre-configured non-orthogonal multiple access data transmission physical resource set;

the sending submodule 7022 is specifically configured to send an uplink signal to the base station according to the frequency resource information and the resource configuration information.

spreading codes or sparse codes allowed to be used;

the power allowed to be used;

pattern allowed for use;

DMRSs allowed to be used;

DMRS antenna ports allowed to be used.

The terminal provided in the embodiment of the present invention can implement each process implemented by the terminal in the method embodiments of fig. 2 and fig. 3, and for avoiding repetition, it is not described here any more, and can implement uplink data transmission in a non-orthogonal multiple access manner, and improve the number of terminals simultaneously accessed and the performance of a communication system.

Referring to fig. 10, fig. 10 is a structural diagram of a base station according to an embodiment of the present invention, and as shown in fig. 10, the base station 1000 includes:

a first transmitting module 1001 configured to transmit DCI to a terminal;

a receiving module 1002, configured to receive an uplink signal sent by the terminal using the non-orthogonal multiple access data transmission physical resource indicated by the DCI.

Optionally, the DCI is used to indicate a multiple access identifier;

the receiving module 1002 is specifically configured to receive an uplink signal sent by the terminal using a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier indicated by the DCI.

alternatively, the first and second electrodes may be,

Optionally, the receiving module 1002 is specifically configured to receive an uplink signal that is sent by the terminal according to the transmission parameter and uses the non-orthogonal multiple access data transmission physical resource indicated by the DCI.

Optionally, the non-orthogonal multiple access data transmission physical resource is a non-orthogonal multiple access data transmission physical resource corresponding to a multiple access identifier, which is determined by the terminal from a pre-configured non-orthogonal multiple access data transmission physical resource set according to the multiple access identifier indicated by the DCI.

Optionally, as shown in fig. 11, the method further includes:

a second sending module 1003, configured to send a configuration signaling to the terminal, where the configuration signaling is used to configure the non-orthogonal multiple access data transmission physical resource set.

the receiving module 1002 is specifically configured to receive an uplink signal sent by the terminal according to the frequency resource information and the resource configuration information;

spreading codes or sparse codes allowed to be used;

the power allowed to be used;

pattern allowed for use;

DMRSs allowed to be used;

DMRS antenna ports allowed to be used.

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 in order to avoid repetition, it is not described here any more, and can implement uplink data transmission in a non-orthogonal multiple access manner, and improve the number of terminals simultaneously accessed and the performance of a communication system.

Figure 12 is a schematic diagram of the hardware architecture of a terminal implementing various embodiments of the invention,

the terminal 1200 includes, but is not limited to: radio frequency unit 1201, network module 1202, audio output unit 1203, input unit 1204, sensor 1205, display unit 1206, user input unit 1207, interface unit 1208, memory 1209, processor 1210, and power source 1211. Those skilled in the art will appreciate that the terminal configuration shown in fig. 12 is not intended to be limiting, and that the 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 terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

A radio frequency unit 1201, configured to receive downlink control information DCI sent by a base station;

Optionally, the DCI is used to indicate a multiple access identifier;

the sending, by the radio frequency unit 1201, the uplink signal to the base station using the non-orthogonal multiple access data transmission physical resource indicated by the DCI includes:

and transmitting an uplink signal to the base station by using a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier indicated by the DCI.

alternatively, the first and second electrodes may be,

Optionally, the sending, by the radio frequency unit 1201, the uplink signal to the base station includes:

Optionally, the sending, by the radio frequency unit 1201, an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier indicated by the DCI includes:

and transmitting an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource.

Optionally, before receiving the DCI sent by the base station, the radio frequency unit 1201 is further configured to:

the determining, by the radio frequency unit 1201, the non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier from a pre-configured non-orthogonal multiple access data transmission physical resource set according to the multiple access identifier indicated by the DCI includes:

the sending, by the radio frequency unit 1201, an uplink signal to the base station using the non-orthogonal multiple access data transmission physical resource includes:

spreading codes or sparse codes allowed to be used;

the power allowed to be used;

pattern allowed for use;

DMRSs allowed to be used;

DMRS antenna ports allowed to be used.

The terminal can realize uplink data transmission in a non-orthogonal multiple access mode, and improve the number of simultaneously accessed terminals and the performance of a communication system.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 1201 may be used for receiving and sending signals during information transmission and reception or during a call, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 1210; in addition, the uplink data is transmitted to the base station. Typically, the radio frequency unit 1201 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 1201 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 1202, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.

The audio output unit 1203 may convert audio data received by the radio frequency unit 1201 or the network module 1202 or stored in the memory 1209 into an audio signal and output as sound. Also, the audio output unit 1203 may also provide audio output related to a specific function performed by the terminal 1200 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 1203 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1204 is used to receive audio or video signals. The input Unit 1204 may include a Graphics Processing Unit (GPU) 12041 and a microphone 12042, and the Graphics processor 12041 processes image data of a still picture or video obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 1206. The image frames processed by the graphics processor 12041 may be stored in the memory 1209 (or other storage medium) or transmitted via the radio frequency unit 1201 or the network module 1202. The microphone 12042 can receive sound, and can process such sound 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 1201 in case of the phone call mode.

The terminal 1200 also includes at least one sensor 1205, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 12061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 12061 and/or backlight when the terminal 1200 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 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 1205 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., and will not be described further herein.

The display unit 1206 is used to display information input by the user or information provided to the user. The Display unit 1206 may include a Display panel 12061, and the Display panel 12061 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 1207 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 1207 includes a touch panel 12071 and other input devices 12072. The touch panel 12071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 12071 (e.g., operations by a user on or near the touch panel 12071 using a finger, a stylus, or any suitable object or attachment). The touch panel 12071 may include two parts of 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 1210, receives a command from the processor 1210, and executes the command. In addition, the touch panel 12071 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 1207 may include other input devices 12072 in addition to the touch panel 12071. In particular, the other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 12071 may be overlaid on the display panel 12061, and when the touch panel 12071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1210 to determine the type of the touch event, and then the processor 1210 provides a corresponding visual output on the display panel 12061 according to the type of the touch event. Although the touch panel 12071 and the display panel 12061 are shown as two separate components in fig. 12 to implement the input and output functions of the terminal, in some embodiments, the touch panel 12071 and the display panel 12061 may be integrated to implement the input and output functions of the terminal, and this is not limited herein.

An interface unit 1208 is an interface for connecting an external device to the terminal 1200. 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 1208 may be used to receive input from an external device (e.g., data information, power, etc.) and transmit the received input to one or more elements within the terminal 1200 or may be used to transmit data between the terminal 1200 and the external device.

The memory 1209 may be used to store software programs as well as various data. The memory 1209 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, 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 1209 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 1210 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by running or executing software programs and/or modules stored in the memory 1209 and calling data stored in the memory 1209, thereby monitoring the entire terminal. Processor 1210 may include one or more processing units; preferably, the processor 1210 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 1210.

The terminal 1200 may also include a power source 1211 (e.g., a battery) for powering the various components, and preferably, the power source 1211 is logically connected to the processor 1210 via a power management system such that the functions of managing charging, discharging, and power consumption are performed via the power management system.

In addition, the terminal 1200 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 terminal, including a processor 1210, a memory 1209, and a computer program stored in the memory 1209 and capable of running on the processor 1210, where the computer program, when executed by the processor 1210, implements each process of the foregoing 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. 13, fig. 13 is a structural diagram of another base station according to an embodiment of the present invention, and as shown in fig. 13, the base station 1300 includes: a processor 1301, a transceiver 1302, a memory 1303 and a bus interface, wherein:

a transceiver 1302 for transmitting DCI to a terminal;

Optionally, the DCI is used to indicate a multiple access identifier;

the receiving, performed by the transceiver 1302, the uplink signal transmitted by the terminal using the non-orthogonal multiple access data transmission physical resource indicated by the DCI includes:

alternatively, the first and second electrodes may be,

Optionally, the receiving, performed by the transceiver 1302, an uplink signal sent by the terminal using the non-orthogonal multiple access data transmission physical resource indicated by the DCI includes:

Optionally, each non-orthogonal multiple access data transmission physical resource in the non-orthogonal multiple access data transmission physical resource set is configured with a corresponding multiple access identifier, and each multiple access identifier is configured with a corresponding resource configuration.

Optionally, before receiving the uplink signal sent by the terminal using the non-orthogonal multiple access data transmission physical resource indicated by the DCI, the transceiver 1302 is further configured to:

spreading codes or sparse codes allowed to be used;

the power allowed to be used;

pattern allowed for use;

DMRSs allowed to be used;

DMRS antenna ports allowed to be used.

The base station can realize uplink data transmission in a non-orthogonal multiple access mode, and improve the number of terminals accessed simultaneously and the performance of a communication system.

Wherein the transceiver 1302 is configured to receive and transmit data under the control of the processor 1301, and the transceiver 1302 includes at least two antenna ports.

In fig. 13, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1301 and various circuits of memory represented by memory 1303 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 1302 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. The user interface 1304 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 1301 is responsible for managing a bus architecture and general processing, and the memory 1303 may store data used by the processor 1301 in performing operations.

Preferably, an embodiment of the present invention further provides a base station, which includes a processor 1301, a memory 1303, and a computer program stored in the memory 1303 and capable of running on the processor 1301, where the computer program is executed by the processor 1301 to implement each process of the foregoing signal transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

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 each process of the embodiment of the signal transmission method at the terminal side provided in the embodiment of the present invention, or when the computer program is executed by a processor, the computer program implements each process of the embodiment of the signal transmission method at the base station side provided in the embodiment of the present invention, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again. 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

1. A signal transmission method is applied to a terminal, and is characterized by comprising the following steps:

receiving downlink control information DCI sent by a base station;

transmitting an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI;

wherein the DCI is used for indicating a multiple access identifier;

transmitting an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI, including:

2. The method of claim 1, wherein the DCI comprises multiple access identity allocation information indicating one or more multiple access identities, different multiple access identities having different sequence numbers.

3. The method of claim 2, wherein when the multiple access identifier allocation information is used to indicate a multiple access identifier, the multiple access identifier allocation information includes a sequence number of the multiple access identifier indicated by the multiple access identifier allocation information;

4. The method of claim 3, wherein the identification sequence number is a sequence number of a starting multiple access identification of the multiple access identifications indicated by the multiple access identification allocation information, and the starting multiple access identification is a multiple access identification with a smallest sequence number of the multiple access identifications;

alternatively, the first and second electrodes may be,

5. The method of claim 2, wherein the multiple access identity allocation information is used to indicate a plurality of multiple access identities through a structure of a bitmap.

6. The method of claim 1, wherein the DCI comprises transmission parameters, wherein the transmission parameters comprise at least one of:

wherein the new data indication is used for indicating to transmit new data or retransmit data;

the sending the uplink signal to the base station includes:

7. The method of claim 1, wherein the receiving the DCI transmitted by the base station further comprises:

8. The method of claim 7,

the configuration signaling comprises: the method comprises the steps of frequency resource information, resource configuration information and a serial number of a multiple access identifier, wherein the frequency resource information is used for indicating frequency resources corresponding to the multiple access identifier;

9. The method of claim 8, wherein the resource configuration information comprises at least one of:

spreading codes or sparse codes allowed to be used;

the power allowed to be used;

the pattern allowed to be used;

allowing demodulation reference signals (DMRS) to be used;

DMRS antenna ports allowed to be used.

10. The method of claim 9, wherein the resource configuration information further comprises: modulation scheme, coding rate, and redundancy version.

11. A signal transmission method applied to a base station is characterized by comprising the following steps:

transmitting DCI to the terminal;

receiving an uplink signal sent by the terminal by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI;

wherein the DCI is used for indicating a multiple access identifier;

the non-orthogonal multiple access data transmission physical resource is determined by the terminal from a pre-configured non-orthogonal multiple access data transmission physical resource set according to the multiple access identifier indicated by the DCI and corresponds to the multiple access identifier.

12. The method of claim 11, wherein the DCI comprises multiple access identity allocation information indicating one or more multiple access identities, different multiple access identities having different sequence numbers.

13. The method of claim 12, wherein when the multiple access id allocation information is used to indicate a multiple access id, the multiple access id allocation information includes a sequence number of the multiple access id indicated by the multiple access id allocation information;

14. The method of claim 13, wherein the identification sequence number is a sequence number of a starting multiple access identification of the multiple access identifications indicated by the multiple access identification allocation information, and the starting multiple access identification is a multiple access identification with a smallest sequence number of the multiple access identifications;

alternatively, the first and second electrodes may be,

15. The method of claim 12, wherein the multiple access identity allocation information is used to indicate a plurality of multiple access identities through a structure of a bitmap.

16. The method of claim 11, wherein the DCI comprises transmission parameters, wherein the transmission parameters comprise at least one of:

17. The method of claim 11, wherein before the receiving the uplink signal transmitted by the terminal using the non-orthogonal multiple access data transmission physical resource indicated by the DCI, the method further comprises:

18. The method of claim 17,

19. The method of claim 18, wherein the resource configuration information comprises at least one of:

spreading codes or sparse codes allowed to be used;

the power allowed to be used;

pattern allowed for use;

DMRSs allowed to be used;

DMRS antenna ports allowed to be used.

20. The method of claim 19, wherein the resource configuration information further comprises: modulation scheme, coding rate, and redundancy version.

21. A terminal, comprising:

a sending module, configured to send an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource indicated by the DCI;

the DCI is used for indicating a multiple access identifier;

the sending module comprises:

a determining submodule, configured to determine, according to the multiple access identifier indicated by the DCI, a non-orthogonal multiple access data transmission physical resource corresponding to the multiple access identifier from a pre-configured non-orthogonal multiple access data transmission physical resource set;

and the sending submodule is used for sending an uplink signal to the base station by using the non-orthogonal multiple access data transmission physical resource.

22. The terminal of claim 21, wherein the DCI includes multiple access identity allocation information indicating one or more multiple access identities, different multiple access identities having different sequence numbers.

23. The terminal of claim 22, wherein when the multiple access id allocation information is used to indicate a multiple access id, the multiple access id allocation information includes a sequence number of the multiple access id indicated by the multiple access id allocation information;

24. The terminal of claim 23, wherein the identification sequence number is a sequence number of a starting multiple access identification of the multiple access identifications indicated by the multiple access identification allocation information, and the starting multiple access identification is a multiple access identification with a smallest sequence number of the multiple access identifications;

alternatively, the first and second electrodes may be,

25. The terminal of claim 23, wherein the multiple access identity allocation information is used to indicate a plurality of multiple access identities through a structure of a bitmap.

26. The terminal of claim 21, wherein the DCI comprises transmission parameters, wherein the transmission parameters comprise at least one of:

the sending module is specifically configured to transmit a physical resource using non-orthogonal multiple access data corresponding to the multiple access identifier indicated by the DCI, and send an uplink signal to the base station according to the transmission parameter.

27. The terminal of claim 21, further comprising:

a second receiving module, configured to receive a configuration signaling sent by the base station, where the configuration signaling is used to configure the non-orthogonal multiple access data transmission physical resource set.

28. The terminal of claim 27,

the determining submodule is specifically configured to determine, according to a sequence number of a multiple access identifier, frequency resource information and resource configuration information corresponding to the multiple access identifier from a pre-configured non-orthogonal multiple access data transmission physical resource set;

the sending submodule is specifically configured to send an uplink signal to the base station according to the frequency resource information and the resource configuration information.

29. The terminal of claim 28, wherein the resource configuration information comprises at least one of:

spreading codes or sparse codes allowed to be used;

the power allowed to be used;

pattern allowed for use;

DMRSs allowed to be used;

DMRS antenna ports allowed to be used.

30. The terminal of claim 29, wherein the resource configuration information further comprises: modulation scheme, coding rate, and redundancy version.

31. A base station, comprising:

a first sending module, configured to send DCI to a terminal;

a receiving module, configured to receive an uplink signal sent by the terminal using the non-orthogonal multiple access data transmission physical resource indicated by the DCI;

wherein the DCI is used for indicating a multiple access identifier;

32. The base station of claim 31, wherein the DCI includes multiple access identity allocation information indicating one or more multiple access identities, different multiple access identities having different sequence numbers.

33. The base station of claim 32, wherein when the multiple access id allocation information is used to indicate a multiple access id, the multiple access id allocation information includes a sequence number of the multiple access id indicated by the multiple access id allocation information;

34. The base station of claim 33, wherein the identification sequence number is a sequence number of a starting multiple access identification of the multiple access identifications indicated by the multiple access identification allocation information, and the starting multiple access identification is a multiple access identification with a smallest sequence number of the multiple access identifications;

alternatively, the first and second electrodes may be,

35. The base station of claim 32, wherein the multiple access identity allocation information is used to indicate multiple access identities through a structure of a bitmap.

36. The base station of claim 31, wherein the DCI comprises transmission parameters, wherein the transmission parameters comprise at least one of:

the receiving module is specifically configured to receive an uplink signal that is sent by the terminal according to the transmission parameter and uses the non-orthogonal multiple access data transmission physical resource indicated by the DCI.

37. The base station of claim 31, further comprising:

a second sending module, configured to send a configuration signaling to the terminal, where the configuration signaling is used to configure the non-orthogonal multiple access data transmission physical resource set.

38. The base station of claim 37,

the receiving module is specifically configured to receive an uplink signal sent by the terminal according to the frequency resource information and the resource configuration information;

39. The base station of claim 38, wherein the resource configuration information comprises at least one of:

spreading codes or sparse codes allowed to be used;

the power allowed to be used;

pattern allowed for use;

DMRSs allowed to be used;

DMRS antenna ports allowed to be used.

40. The base station of claim 39, wherein the resource configuration information further comprises: modulation scheme, coding rate, and redundancy version.

41. A terminal, comprising: memory, processor and signal transmission program stored on the memory and executable on the processor, which when executed by the processor implements the steps in the signal transmission method according to any one of claims 1 to 10.

42. A base station, comprising: memory, processor and signal transmission program stored on the memory and executable on the processor, which when executed by the processor implements the steps in the signal transmission method according to any one of claims 11 to 20.

43. A signal transmission system comprising a terminal according to any of claims 21 to 30 and a base station according to any of claims 31 to 40;

alternatively, the first and second electrodes may be,

comprising a terminal according to claim 41 and a base station according to claim 42.

44. A computer-readable storage medium, characterized in that a signal transmission program is stored thereon, which when executed by a processor implements the steps of the signal transmission method according to any one of claims 1 to 10, or which when executed by a processor implements the steps of the signal transmission method according to any one of claims 11 to 20.