CN109792728B

CN109792728B - Method, terminal and network equipment for determining basic parameter set

Info

Publication number: CN109792728B
Application number: CN201780049773.0A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-03-14
Filing date: 2017-03-14
Publication date: 2020-04-21
Anticipated expiration: 2037-03-14
Also published as: WO2018165872A1; CN109792728A

Abstract

The application discloses a method, a terminal and network equipment for determining a basic parameter set, wherein the method comprises the following steps: the terminal uses at least one first Radio Network Temporary Identifier (RNTI) to descramble Cyclic Redundancy Check (CRC) in the downlink control information, and determines a first RNTI in the at least one first RNTI, which successfully descrambles the CRC, as a target RNTI; and the terminal determines the target basic parameter set for transmitting data according to the target RNTI and the corresponding relation between the first RNTI and the basic parameter set. According to the embodiment of the application, the CRC in the downlink control information is scrambled by using the first RNTI, and the basic parameter set is indicated by the first RNTI, so that the problem that in the prior art, an indication field for indicating the type of the basic parameter set needs to be added in the downlink control information to reduce signaling overhead caused by indicating the basic parameter set used for transmitting data is solved.

Description

Method, terminal and network equipment for determining basic parameter set

Technical Field

The present application relates to the field of communications, and more particularly, to a method, a terminal and a network device for data transmission.

Background

In a new air interface communication system, different sets of base parameters (numerology) may be used for data transmission between a terminal and a network device. The network device needs to indicate a base parameter set used by the terminal for transmitting data to the terminal through Downlink Control Information (DCI), that is, an indication field for indicating the base parameter set Information is added to the DCI, so that when the network device performs scheduling, the terminal can determine which base parameter set is used for transmitting data through the DCI.

However, the above-described scheme of indicating the base parameter set used for transmitting data to the terminal in the DCI scheme increases overhead for transmitting DCI. For example, by DCI indicating 15KHz, 30KHz, 60KHz, 120KHz basic parameter sets, DCI needs to add a 2-bit (bit) field to indicate different types of basic parameter sets.

Disclosure of the invention

Technical problem

The application provides a method, a terminal and a network device for determining a basic parameter set, so as to reduce signaling overhead caused by the basic parameter set used by downlink control information indication transmission data.

Solution to the problem

Technical solution

In a first aspect, a method for determining a base parameter set is provided, including: the terminal uses at least one first Radio Network Temporary Identifier (RNTI) to descramble Cyclic Redundancy Check (CRC) in the downlink control information, and determines a first RNTI in the at least one first RNTI, which successfully descrambles the CRC, as a target RNTI; and the terminal determines the target basic parameter set for transmitting data according to the target RNTI and the corresponding relation between the first RNTI and the basic parameter set.

According to the embodiment of the application, the CRC in the downlink control information is scrambled by using the first RNTI, and the basic parameter set is indicated by the first RNTI, so that the problem that in the prior art, an indication field for indicating the type of the basic parameter set needs to be added in the downlink control information to reduce signaling overhead caused by indicating the basic parameter set used for transmitting data is solved.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: and the terminal successfully descrambles the CRC in the downlink control information by using the second RNTI and determines a receiving end for receiving the downlink control information as the terminal.

The second RNTI is used for indicating the CRC in the downlink control information, so that the problem that a large number of first RNTIs are needed to be prestored by a terminal due to the fact that a receiving end for receiving the downlink control information needs to be indicated while a basic parameter set is indicated by the first RNTI is avoided.

Further, according to the scheme of the embodiment of the application, a first RNTI (radio network temporary identifier) indication basic parameter set can be added on the basis of the prior art, so that the change of the prior art is small, and the popularization is facilitated.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: and the terminal successfully descrambles the CRC in the downlink control information by using the target RNTI and determines a receiving end of the downlink control information as the terminal.

And indicating a receiving end for receiving the downlink control information while indicating the basic parameter set through the target RNTI in the first RNTI so as to simplify the process of scrambling or descrambling the CRC in the downlink control information.

With reference to the first aspect, in a possible implementation manner of the first aspect, the at least one first RNTI is multiple first RNTIs, the multiple first RNTIs are first RNTIs corresponding to all basic parameter sets pre-stored by the terminal, and different first RNTIs in the multiple first RNTIs are used for indicating different basic parameter sets.

With reference to the first aspect, in a possible implementation manner of the first aspect, the determining, by the terminal, that a first RNTI in the at least one first RNTI that successfully descrambles a Cyclic Redundancy Check (CRC) in the downlink control information is a target RNTI by using the at least one first radio network temporary identity RNTI includes: the terminal uses at least one first RNTI in a first set to descramble the CRC, and determines the first RNTI for successfully descrambling the CRC as the target RNTI, wherein the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of a first service.

The terminal determines a target RNTI in a first set, wherein transmission parameters in a basic parameter set indicated by the first RNTI in the first set meet the transmission requirement of a first service, so that the time for determining the target RNTI by the terminal is reduced.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first set is a subset of a second set, and the second set includes all first RNTIs pre-stored by the terminal.

The terminal determines a target RNTI from first RNTIs in a first set in a second set to reduce the time for the terminal to determine the target RNTI, wherein the second set can contain all the first RNTIs prestored by the terminal, and transmission parameters in a basic parameter set indicated by the first RNTIs in the first set meet the transmission requirement of the first service.

With reference to the first aspect, in a possible implementation manner of the first aspect, transmission parameters in a basic parameter set indicated by the first RNTI in the second set meet transmission requirements of multiple different services.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: and the terminal receives configuration information sent by the network equipment, wherein the configuration information is used for configuring the first set for the terminal.

The first RNTIs in the first set are configured for the terminal through the network equipment, and the terminal can directly determine the target RNTI from the first RNTIs in the first set, so that the time for the terminal to determine the target RNTI is reduced.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first service is an ultra-reliable low-latency communication URLLC service or an enhanced mobile broadband eMBB service.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes:

and the terminal receives a high-level signaling sent by the network equipment, wherein the high-level signaling carries the corresponding relation between the first RNTI and the basic parameter set.

In a second aspect, a method for determining a base parameter set is provided, comprising: the network equipment generates downlink control information, wherein cyclic redundancy check codes (CRC) in the downlink control information are scrambled by a first Radio Network Temporary Identifier (RNTI) of a target basic parameter set, and the target RNTI is used for indicating the target basic parameter set; and the network equipment sends the downlink control information to the terminal.

With reference to the second aspect, in a possible implementation manner of the second aspect, the generating, by the network device, the downlink control information includes: and the network equipment generates downlink control information, wherein CRC in the downlink control information is also scrambled by a second RNTI, and the second RNTI is used for indicating a terminal for receiving the downlink control information.

With reference to the second aspect, in a possible implementation manner of the second aspect, the target RNTI is further used to indicate a terminal that receives the downlink control information.

With reference to the second aspect, in a possible implementation manner of the second aspect, the at least one first RNTI is multiple first RNTIs, the multiple first RNTIs are first RNTIs corresponding to all basic parameter sets, and different first RNTIs in the multiple first RNTIs are used to indicate different basic parameter sets.

With reference to the second aspect, in a possible implementation manner of the second aspect, the generating, by the network device, downlink control information, where a Cyclic Redundancy Check (CRC) in the downlink control information is scrambled by a target base parameter set Radio Network Temporary Identifier (RNTI), where the target RNTI is used to indicate the target base parameter set, includes: the network equipment determines the target RNTI from a first set, the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of the first service; the network device generates the downlink control information, and the downlink control information scrambles the CRC using the target RNTI.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first set is a subset of a second set, and the second set includes all first RNTIs pre-stored by the terminal.

With reference to the second aspect, in a possible implementation manner of the second aspect, the transmission parameters in the basic parameter set indicated by the first RNTI in the second set meet transmission requirements of multiple different services.

With reference to the second aspect, in a possible implementation manner of the second aspect, the method further includes: and the network equipment sends configuration information to the terminal, wherein the configuration information is used for configuring the first set for the terminal.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first service is an ultra-reliable low-latency communication URLLC service or an enhanced mobile broadband eMBB service.

With reference to the second aspect, in a possible implementation manner of the second aspect, the method further includes: and the network equipment sends a high-level signaling to the terminal, wherein the high-level signaling carries the corresponding relation between the first RNTI and the basic parameter set.

In a third aspect, a terminal is provided, which includes means for performing the method in the first aspect.

In a fourth aspect, a network device is provided that comprises means for performing the method in the second aspect.

In a fifth aspect, a terminal is provided, which includes: a memory, a processor, an input/output interface, and a communication interface. Wherein, there is communication connection between the memory, the processor, the input/output interface and the communication interface, the memory is used for storing instructions, the processor is used for executing the instructions stored by the memory, when the instructions are executed, the processor executes the method of the first aspect through the communication interface, and controls the input/output interface to receive input data and information and output data such as operation results.

In a sixth aspect, a network device is provided, the network device comprising: a memory, a processor, an input/output interface, and a communication interface. Wherein, there is communication connection between the memory, the processor, the input/output interface and the communication interface, the memory is used for storing instructions, the processor is used for executing the instructions stored by the memory, when the instructions are executed, the processor executes the method of the second aspect through the communication interface, and controls the input/output interface to receive input data and information and output data such as operation results.

In a seventh aspect, a computer readable medium is provided, which stores program code for execution by a terminal device, the program code comprising instructions for performing the method in the first aspect.

In an eighth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of the above aspects.

Advantageous effects of the invention

Advantageous effects

Brief description of the drawings

Drawings

Fig. 1 is a wireless communication system 100 to which an embodiment of the present application is applied.

Fig. 2 is a schematic diagram of multiplexing different sets of elementary parameters in the time domain.

Fig. 3 is a schematic diagram of multiplexing different sets of elementary parameters in the frequency domain.

Fig. 4 is a schematic flow chart of a method of data transmission according to an embodiment of the present application.

Fig. 5 is a schematic flow chart of a method of data transmission according to another embodiment of the present application.

Fig. 6 is a schematic block diagram of a terminal according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of a network device of an embodiment of the present application.

Fig. 8 is a schematic block diagram of a terminal for data transmission according to another embodiment of the present application.

Fig. 9 is a schematic block diagram of a network device of another embodiment of the present application.

Best mode for carrying out the invention

The technical solution in the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a wireless communication system 100 to which an embodiment of the present application is applied. The wireless communication system 100 may include a network device 110. Network device 110 may be a device that communicates with a terminal device. Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area.

Fig. 1 exemplarily shows one network device and two terminals, and optionally, the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminals within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the technical solution of the present application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an Advanced Long Term Evolution (LTE-a) System, a Universal Mobile Telecommunications System (UMTS), a New Radio Access Technology (NR), 5G, and the like.

It should also be understood that in the embodiment of the present application, the Terminal device may include, but is not limited to, a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), a Mobile phone (Mobile Telephone), a User Equipment (UE), a handset (handset), a portable device (portable Equipment), etc., and the Terminal device may communicate with one or more core networks via a Radio Access Network (RAN), for example, the Terminal device may be a Mobile phone (or referred to as a "cellular" phone), a computer with wireless communication function, etc., and the Terminal device may also be a portable, pocket, hand-held, computer-embedded or vehicle-mounted Mobile device.

In this embodiment of the present application, the network device may be an access network device, for example, a base Station, a Transmit and Receive Point (TRP) or an access Point, where the base Station may be a base Station (BTS) in GSM or CDMA, a base Station (NodeB) in WCDMA, an evolved Node B (eNB or e-NodeB) in LTE, or a base Station (gNB) in NR or 5G, which is not specifically limited in this embodiment of the present application.

To facilitate understanding of the scheme, related concepts in the embodiments of the present application are first introduced.

The basic parameter set mentioned in the embodiments of the present application may include at least one of the following parameters:

the number of subcarriers in a specific bandwidth, the number of subcarriers in a physical resource block PRB, the length of an orthogonal frequency division multiplexing OFDM symbol, the number of points of a fourier Transform such as Fast Fourier Transform (FFT) or an Inverse fourier Transform such as Inverse Fast Fourier Transform (IFFT) for generating an OFDM signal, the number of OFDM symbols in a transmission time interval TTI, the number of TTIs included within a specific time length, and the length of a signal prefix.

Wherein, the subcarrier spacing refers to the frequency spacing of adjacent subcarriers, such as 15kHz, 60kHz, etc.; the number of subcarriers under a specific bandwidth is, for example, the number of subcarriers corresponding to each possible system bandwidth; the number of subcarriers included in a PRB may typically be an integer multiple of 12, for example; the number of OFDM symbols contained in a TTI may typically be an integer multiple of 14, for example; the number of TTIs included in a certain time unit may refer to the number of TTIs included in a time length of 51 ms or 10 ms; signal prefix length, e.g., the time length of the cyclic prefix of the signal, or whether the cyclic prefix uses normal CP or extended CP.

In the NR standardization discussion, different types of sets of base parameters may be used to transmit data between a terminal and a network device. Data may be transmitted using different sets of base parameters on the same carrier or different carriers. In general, different base parameter sets may be distinguished by subcarrier spacing, for example, a base parameter set corresponding to 15KHz may be used as a reference base parameter set. For example, the subcarrier spacing in other types of basic parameter sets may take the value 15KHz × 2n, where n is a non-negative integer; the number of slots (slots) included in one subframe in the other types of basic parameter sets may be 2n of the number of slots in the reference basic parameter set, where n is a non-negative integer; one resource block RB in the other type of basic parameter set may be the same number (e.g., 12) of subcarriers contained in the frequency domain with reference to the basic parameter set. When n is 1, the subcarrier spacing in the basic parameter set is 30KHz, and one subframe may include 4 slots.

Currently, the following two multiplexing methods are mainly used for multiplexing different types of basic parameter sets in the same carrier:

1. time Division Multiplexing (TDM), that is, different sets of base parameters can be multiplexed in the Time domain within the same bandwidth. It should be understood that the time periods corresponding to different sets of elementary parameters may be the same or different. Referring to fig. 2, 3 different types of basic parameter sets contain different numbers of subcarriers within the same bandwidth. Assuming that each RB corresponds to 12 subcarriers, the number of subcarriers included in the first basic parameter set is 48, the number of subcarriers included in the second basic parameter set is 24, and the number of subcarriers included in the third basic parameter set is 12 in the same bandwidth.

2. Frequency Division Multiplexing (FDM), that is, different sets of base parameters can be multiplexed in the Frequency domain during the same time interval. It should be understood that the bandwidths corresponding to different sets of base parameters may be the same or different. Each RB may correspond to 1 slot, and referring to fig. 3, 3 different types of basic parameter sets contain different numbers of slots within the same time interval. For example, a first base parameter set comprises 1 slot in the transmission time interval, a second base parameter set comprises 2 slots in the transmission time interval, and a third base parameter set comprises 4 slots in the transmission time interval.

Since data is transmitted using different sets of basic parameters on the same carrier or different carriers, the terminal needs to determine which set of basic parameters to use for transmitting data when transmitting data, and the network device needs to indicate the terminal to the set of basic parameters used for transmitting data through DCI. However, this way of indicating the basic parameter set used for transmitting data to the terminal by means of DCI increases overhead for transmitting DCI. In order to reduce the overhead of transmitting DCI, the method of data transmission according to the embodiment of the present application is described in detail below with reference to fig. 4.

Fig. 4 is a schematic flow chart of a method of data transmission according to an embodiment of the present application. The method shown in fig. 4 includes:

the terminal uses at least one first radio network temporary identifier RNTI to descramble Cyclic Redundancy Check (CRC) codes in downlink control information, and determines that a first RNTI successfully descrambling the CRC in the at least one first RNTI is a target RNTI.

Specifically, the first RNTI may be a basic parameter set radio network temporary Identity (N-RNTI), which may be used to indicate a basic parameter set, and the name of the first RNTI is not specifically limited in this embodiment of the application.

It should be noted that, if the terminal uses the multiple first RNTIs to descramble the CRC in the downlink control information, the terminal may descramble the CRC in the downlink control information according to the preset priority order of the first RNTIs, and the terminal may also randomly use different first RNTIs in the multiple first RNTIs to descramble the CRC in the downlink control information. The embodiment of the present application does not specifically limit the descrambling sequence of the terminal using the first RNTI. Optionally, the at least one first RNTI is a plurality of first RNTIs, the plurality of first RNTIs are first RNTIs corresponding to all basic parameter sets, and different first RNTIs in the plurality of first RNTIs are used for indicating different basic parameter sets.

It should be understood that, the terminal may pre-store all the first RNTIs, and the terminal may also pre-store only part of the first RNTIs, which is not specifically limited in this embodiment of the application.

It should also be understood that all of the first RNTIs described above may refer to all of the first RNTIs specified by the protocol.

420, the terminal determines the target basic parameter set for data transmission according to the target RNTI and the corresponding relationship between the first RNTI and the basic parameter set.

It should be noted that the correspondence between the first RNTI and the basic parameter set may be a correspondence between the first RNTI and the basic parameter set specified by a protocol, or may be a correspondence between the first RNTI and the basic parameter set indicated to the terminal by the network device through a high-level signaling, which is not specifically limited in this embodiment of the present application.

For example, the correspondence between the first RNTI and the basic parameter set may be as shown in table 1, where 15KHz-RNTI is used to indicate a basic parameter set of 15KHz, 30KHz-RNTI is used to indicate a basic parameter set of 30KHz, 60KHz-RNTI is used to indicate a basic parameter set of 60KHz, and 120KHz-RNTI is used to indicate a basic parameter set of 120 KHz.

TABLE 1

First RNTI basic parameter set

15KHz-RNTI 15KHz numerology

30KHz-RNTI 30KHz numerology

60KHz-RNTI 60KHz numerology

120KHz-RNTI 120KHz numerology

Optionally, as an implementation, the method further includes:

430, the terminal performs data transmission with the network device according to the transmission parameters in the target basic parameter set.

Optionally, as an embodiment, the method further includes: and the terminal successfully descrambles the CRC in the downlink control information by using the second RNTI and determines a receiving end for receiving the downlink control information as the terminal.

Specifically, the second RNTI is used to indicate a terminal that receives downlink control information, and if the terminal can descramble CRC in the downlink control information using a pre-stored first RNTI, a receiving end of the downlink control information is the terminal, that is, the second RNTI is used to uniquely identify the terminal.

It should be noted that the second RNTI may be different types of RNTIs according to different situations of the terminal. The second RNTI may be a C-RNTI used for dynamically scheduled PDSCH transmission, an RA-RNTI used for random access response, an SI-RNTI used for identifying transmission of SIB messages, a P-RNTI used for identifying transmission of paging messages, a TPC-RNTI used for identifying a user group for jointly coded TPC command transmission, and a Temp C-RNTI used for Msg3 transmission and collision resolution.

For example, when the terminal has data to transmit, the downlink control information may be downlink control information for indicating data transmission, the CRC in the downlink control information may be scrambled using the C-RNTI, and the second RNTI may be the C-RNTI. When the terminal is in an idle state and the terminal desires to Access the network through a Random Access, the downlink control message may carry a Random Access Response (RAR), the CRC in the downlink control message may be scrambled by the RA-RNTI, and the second RNTI may be the RA-RNTI.

It should be understood that step 440 above may be before step 410, that is, the terminal may use the first RNTI to descramble the CRC in the downlink control information, and then use the second RNTI to descramble the CRC in the downlink control information; the step 440 may also be performed after the step 410, that is, the terminal may use the second RNTI to descramble the CRC in the downlink control information, and then use the first RNTI to descramble the CRC in the downlink control information. The sequence of descrambling the CRC in the downlink control information by the terminal using the first RNTI and the second RNTI mainly depends on the sequence of scrambling the CRC using the first RNTI and the second RNTI when the network device generates the downlink control information. For example, the network device scrambles the CRC of the downlink control information with the first RNTI, then scrambles the CRC of the downlink control information with the second RNTI, and the corresponding terminal needs to descramble the CRC of the downlink control information with the second RNTI, and then descramble the CRC of the downlink control information with the first RNTI; if the network device scrambles the CRC of the downlink control information by using the second RNTI and then scrambles the CRC of the downlink control information by using the first RNTI, the corresponding terminal needs to descramble the CRC of the downlink control information by using the first RNTI and then descramble the CRC of the downlink control information by using the second RNTI.

It should also be understood that the above-mentioned order of scrambling the CRC in the downlink control information using the first RNTI and the second RNTI may be specified by a communication protocol, or may be instructed to the terminal by the network device through higher layer information.

Optionally, as an embodiment, the method further includes: and the terminal successfully descrambles the CRC in the downlink control information by using the target RNTI and determines a receiving end of the downlink control information as the terminal.

Specifically, the first RNTI is also used for uniquely identifying the terminal. That is, if the terminal successfully descrambles the CRC through the target RNTI, the terminal may determine the basic parameter set indicated by the target RNTI, and may also determine that a receiving end receiving the downlink control information is the terminal.

Optionally, the at least one first RNTI is a plurality of first RNTIs, the plurality of first RNTIs are first RNTIs corresponding to all basic parameter sets, and different first RNTIs in the plurality of first RNTIs are used for indicating different basic parameter sets.

Optionally, as an embodiment, the descrambling, by the terminal, a Cyclic Redundancy Check (CRC) in the downlink control information by using at least one first Radio Network Temporary Identity (RNTI), and determining that a first RNTI in the at least one first RNTI that successfully descrambles the CRC is a target RNTI includes: the terminal uses at least one first RNTI in a first set to descramble the CRC, and determines the first RNTI for successfully descrambling the CRC as the target RNTI, wherein the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of a first service.

It should be noted that the first service may be an Ultra Reliable and Low Latency Communication (URLLC) service, and the URLLC service may also be an enhanced mobile broadband (eMBB) service. If the first service is a URLLC service, the first set may include a basic parameter set that meets the transmission requirement of the service, for example, a basic parameter set corresponding to a subcarrier spacing of 60KHz and/or a basic parameter set corresponding to a subcarrier spacing of 120 KHz; if the first service may be an eMBB service, the first set may include basic parameter sets meeting transmission requirements of the service, for example, basic parameter sets corresponding to subcarrier spacing of 15KHz and/or basic parameter sets corresponding to subcarrier spacing of 30 KHz.

It should also be understood that the terminal may send indication information to the network device, where the indication information is used to indicate a service type of a service to which the data to be transmitted belongs, and the terminal may also indicate the service type of the service to which the data to be transmitted belongs to the network device when the terminal establishes an RRC with the network device.

Optionally, as an embodiment, the first set is a subset of a second set, and the second set includes all the first RNTIs pre-stored by the terminal.

Specifically, the second set may include first RNTIs corresponding to all basic parameter sets specified by the protocol, the first set may include first RNTIs corresponding to basic parameter sets meeting the first traffic transmission requirement as a subset of the second set, and the terminal may attempt to descramble CRC in the downlink control information using only the first RNTIs in the first set, thereby determining the target RNTIs.

For example, the terminal supports 4 basic parameter sets shown in table 1, the first set may include 4 first RNTIs corresponding to the 4 basic parameter sets, the second set may include 60KHz-RNTI and 120KHz-RNTI in the first set, when the terminal needs to transmit data of the URLLC service, the terminal may report a service type (e.g., URLLC) of a service to which the data to be transmitted belongs to the network device, and the network device may determine, according to the service type of the service to which the data to be transmitted by the terminal belongs, a target basic parameter set from the basic parameter sets corresponding to the 60KHz-RNTI and the 120KHz-RNTI for use by the terminal in transmitting the data. Correspondingly, when the terminal descrambles the CRC in the downlink control information, the terminal can select the first RNTI from the first set to descramble the CRC, so that the terminal is prevented from determining the target RNTI from the first RNTI in the second set, and the time for determining the target RNTI by descrambling the CRC in the downlink control information is shortened.

Optionally, as an embodiment, transmission parameters in the basic parameter set indicated by the first RNTI in the second set satisfy transmission requirements of multiple different services.

Specifically, the transmission parameters in the basic parameter set indicated by the first RNTI in the second set satisfy the transmission requirements of multiple services, such as URLLC service and eMBB service.

Optionally, as an embodiment, the method further includes: and the terminal receives configuration information sent by the network equipment, wherein the configuration information is used for configuring the first set for the terminal.

Specifically, the network device may configure, for the terminal, only the first RNTI corresponding to the basic parameter set that meets the first service transmission requirement of the terminal, that is, the first RNTI in the first set, and the first RNTI corresponding to the basic parameter set that does not meet the first service transmission requirement, and the network device may not configure for the terminal.

For example, for a terminal of URLLC traffic, the terminal may only support a part of the basic parameter sets in the 4 basic parameter sets shown in table 1, for example, the basic parameter set corresponding to a subcarrier spacing of 60KHz and the basic parameter set corresponding to a subcarrier spacing of 120KHz, that is, the first set may include 60KHz-RNTI and 120 KHz-RNTI. When the terminal descrambles the CRC in the downlink control information, the terminal may select the first RNTI from the first set to descramble the CRC, so as to reduce the time for the terminal to determine the target RNTI by descrambling the CRC in the downlink control information.

Optionally, as an embodiment, the method further includes: and the terminal receives a high-level signaling sent by the network equipment, wherein the high-level signaling carries the corresponding relation between the first RNTI and the basic parameter set.

The correspondence between the first RNTI and the basic parameter set may be a correspondence between all the first RNTI and the basic parameter set specified by a protocol, or may be a correspondence between part of the first RNTI and the basic parameter set.

Fig. 5 is a schematic flow chart of a method of data transmission according to an embodiment of the present application. The method shown in fig. 5 includes:

510, the network device generates downlink control information, where a Cyclic Redundancy Check (CRC) in the downlink control information is scrambled by a first Radio Network Temporary Identifier (RNTI) of a target basic parameter set, and the target RNTI is used to indicate the target basic parameter set.

And 520, the network device sends the downlink control information to the terminal.

Optionally, as an embodiment, the method further includes: and the network equipment uses the transmission parameters in the target basic parameter set to carry out data transmission on the terminal.

Optionally, as an embodiment, the generating, by the network device, the downlink control information includes: and the network equipment generates downlink control information, wherein CRC in the downlink control information is also scrambled by a second RNTI, and the second RNTI is used for indicating a terminal for receiving the downlink control information.

Optionally, as an embodiment, the target RNTI is further used to indicate a terminal that receives the downlink control information.

Optionally, as an embodiment, the at least one first RNTI is multiple first RNTIs, the multiple first RNTIs are first RNTIs corresponding to all basic parameter sets, and different first RNTIs in the multiple first RNTIs are used for indicating different basic parameter sets.

Optionally, as an embodiment, the network device generates downlink control information, where a cyclic redundancy check CRC in the downlink control information is scrambled by a first RNTI of a radio network temporary identifier of a target base parameter set, where the target RNTI is used to indicate the target base parameter set, and the method includes: the network equipment determines the target RNTI from a first set, the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of the first service; the network device generates the downlink control information, and the downlink control information scrambles the CRC using the target RNTI.

Optionally, as an embodiment, the method further includes: and the network equipment sends configuration information to the terminal, wherein the configuration information is used for configuring the first set for the terminal.

Optionally, as an embodiment, the first service is an ultra-reliable low-latency communication URLLC service or an enhanced mobile broadband eMBB service.

Optionally, as an embodiment, the method further includes: and the network equipment sends a high-level signaling to the terminal, wherein the high-level signaling carries the corresponding relation between the first RNTI and the basic parameter set.

The method for determining the base parameter set according to the embodiment of the present application is described above in detail with reference to fig. 1 to 5, and the terminal and the network device according to the embodiment of the present application are described below in detail with reference to fig. 6 to 9. It should be understood that the terminal and the network device described in fig. 6 to fig. 9 according to the embodiment of the present application can implement the steps in the methods shown in fig. 4 and fig. 5, and are not described in detail herein to avoid repetition.

Fig. 6 is a schematic block diagram of a terminal according to an embodiment of the present application. The terminal 600 shown in fig. 6 includes: a first determination unit 610 and a second determination unit 620.

A first determining unit 610, configured to descramble a Cyclic Redundancy Check (CRC) in downlink control information using at least one first Radio Network Temporary Identifier (RNTI), and determine that a first RNTI in the at least one first RNTI that successfully descrambles the CRC is a target RNTI;

a second determining unit 620, configured to determine the target base parameter set for data transmission according to the target RNTI and a corresponding relationship between the first RNTI and the base parameter set.

Optionally, as an embodiment, the terminal further includes: a third determining unit, configured to determine, by using the second RNTI, that the CRC in the downlink control information is successfully descrambled, that a receiving end that receives the downlink control information is the terminal.

Optionally, as an embodiment, the terminal further includes: a fourth determining unit, configured to determine that a receiving end of the downlink control information is the terminal by successfully descrambling the CRC in the downlink control information using the target RNTI.

Optionally, as an embodiment, the at least one first RNTI is a plurality of first RNTIs, the plurality of first RNTIs are first RNTIs corresponding to all basic parameter sets pre-stored by the terminal, and different first RNTIs in the plurality of first RNTIs are used for indicating different basic parameter sets.

Optionally, as an embodiment, the first determining unit is specifically configured to: descrambling the CRC by using at least one first RNTI in a first set, and determining the first RNTI for successfully descrambling the CRC as the target RNTI, wherein the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of a first service.

Optionally, as an embodiment, the terminal further includes: a first receiving unit, configured to receive configuration information sent by the network device, where the configuration information is used to configure the first set for the terminal.

Optionally, as an embodiment, the terminal further includes: a second receiving unit, configured to receive a high-level signaling sent by the network device, where the high-level signaling carries a correspondence between the first RNTI and the basic parameter set.

Fig. 7 is a schematic block diagram of a network device of an embodiment of the present application. The network device 700 shown in fig. 7 includes: a generating unit 710 and a transmitting unit 720.

A generating unit 710, configured to generate downlink control information, where a Cyclic Redundancy Check (CRC) in the downlink control information is scrambled by a first Radio Network Temporary Identifier (RNTI) of a target basic parameter set, and the target RNTI is used to indicate the target basic parameter set;

a sending unit 720, configured to send the downlink control information to the terminal.

Optionally, as an embodiment, the generating unit is further configured to: and generating downlink control information, wherein CRC in the downlink control information is scrambled through a second RNTI (radio network temporary identifier), and the second RNTI is used for indicating a terminal for receiving the downlink control information.

Optionally, as an embodiment, the generating unit is specifically configured to: determining the target RNTI from a first set, wherein the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of the first service; and generating the downlink control information, wherein the downlink control information uses the target RNTI to scramble the CRC.

Optionally, as an embodiment, the network device further includes: a first sending unit, configured to send configuration information to the terminal, where the configuration information is used to configure the first set for the terminal.

Optionally, as an embodiment, the network device further includes: and a second sending unit, configured to send a high-level signaling to the terminal, where the high-level signaling carries a correspondence between the first RNTI and the basic parameter set.

Fig. 8 is a schematic block diagram of a terminal for data transmission according to another embodiment of the present application. The terminal 800 shown in fig. 8 includes: memory 810, processor 820, input/output interface 830, and communication interface 840. The memory 810, the processor 820, the input/output interface 830 and the communication interface 840 are communicatively connected, the memory 810 is used for storing instructions, and the processor 820 is used for executing the instructions stored in the memory 810, so as to control the input/output interface 830 to receive input data and information, output data such as operation results, and control the communication interface 840 to send signals.

A processor 820, configured to descramble a Cyclic Redundancy Check (CRC) in downlink control information using at least one first Radio Network Temporary Identity (RNTI), and determine that a first RNTI in the at least one first RNTI that successfully descrambles the CRC is a target RNTI; and the target base parameter set used for transmitting data is determined according to the target RNTI and the corresponding relation between the first RNTI and the base parameter set.

It should be understood that, in the embodiment of the present invention, the processor 820 may adopt a general-purpose Central Processing Unit (CPU), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits, for executing related programs to implement the technical solutions provided by the embodiments of the present invention.

It is to be further appreciated that the communication interface 840 enables communication between the mobile terminal 800 and other devices or communication networks using transceiver means, such as, but not limited to, transceivers.

The memory 810 may include both read-only memory and random access memory, and provides instructions and data to the processor 820. A portion of processor 820 may also include non-volatile random access memory. For example, processor 820 may also store information of the device type.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 820. The method for determining the base parameter set disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 810, and the processor 820 reads the information in the memory 810 and performs the steps of the above method in combination with the hardware thereof. To avoid repetition, it is not described in detail here.

Optionally, as an embodiment, the processor is further configured to determine, by successfully descrambling the CRC in the downlink control information using the second RNTI, that a receiving end receiving the downlink control information is the terminal.

Optionally, as an embodiment, the processor is further configured to determine that a receiving end of the downlink control information is the terminal by successfully descrambling the CRC in the downlink control information using the target RNTI.

Optionally, as an embodiment, the processor is specifically configured to: descrambling the CRC by using at least one first RNTI in a first set, and determining the first RNTI for successfully descrambling the CRC as the target RNTI, wherein the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of a first service.

Optionally, as an embodiment, the input/output interface is configured to receive configuration information sent by the network device, where the configuration information is used to configure the first set for the terminal.

Optionally, as an embodiment, the input/output interface is further configured to receive a high-level signaling sent by the network device, where the high-level signaling carries a correspondence between the first RNTI and the basic parameter set.

Fig. 9 is a schematic block diagram of a network device of another embodiment of the present application. The network device 900 shown in fig. 9 includes: memory 910, processor 920, input/output interface 930, and communication interface 940. Wherein, there is communication connection between the memory 910, the processor 920, the input/output interface 930 and the communication interface 940, the memory 910 is used for storing instructions, and the processor 920 is used for executing the instructions stored in the memory 910 to control the input/output interface 930 to receive input data and information, output data such as operation results, and control the communication interface 940 to send signals.

A processor 920, configured to generate downlink control information, where a Cyclic Redundancy Check (CRC) in the downlink control information is scrambled by a first Radio Network Temporary Identifier (RNTI) of a target basic parameter set, and the target RNTI is used to indicate the target basic parameter set;

an input/output interface 930, configured to send the downlink control information to the terminal.

It should be understood that, in the embodiment of the present invention, the processor 920 may adopt a general-purpose Central Processing Unit (CPU), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits, for executing related programs to implement the technical solutions provided in the embodiment of the present invention.

It is to be further appreciated that the communication interface 940 employs transceiver means, such as but not limited to a transceiver, to enable communication between the mobile terminal 900 and other devices or communication networks.

The memory 910 may include both read-only memory and random-access memory, and provides instructions and data to the processor 920. A portion of processor 920 may also include non-volatile random access memory. For example, the processor 920 may also store information of device types.

The bus system 950 may include a power bus, a control bus, a status signal bus, and the like, in addition to a data bus. For clarity of illustration, however, the various buses are designated in the figure as the bus system 950.

Optionally, as an embodiment, the processor is further configured to: and generating downlink control information, wherein CRC in the downlink control information is scrambled through a second RNTI (radio network temporary identifier), and the second RNTI is used for indicating a terminal for receiving the downlink control information.

Optionally, as an embodiment, the processor is specifically configured to: determining the target RNTI from a first set, wherein the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of the first service; and generating the downlink control information, wherein the downlink control information uses the target RNTI to scramble the CRC.

Optionally, as an embodiment, the communication interface is configured to send configuration information to the terminal, where the configuration information is used to configure the first set for the terminal.

Optionally, as an embodiment, the communication interface is further configured to send a high-level signaling to the terminal, where the high-level signaling carries a correspondence between the first RNTI and the basic parameter set.

It should be understood that in the embodiment of the present application, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be read by a computer or a data storage device including one or more available media integrated servers, data centers, and the like. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Versatile Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for determining a base parameter set, comprising:

the terminal uses at least one first Radio Network Temporary Identifier (RNTI) to descramble Cyclic Redundancy Check (CRC) in the downlink control information, and determines a first RNTI in the at least one first RNTI, which successfully descrambles the CRC, as a target RNTI;

the terminal determines the target basic parameter set for transmitting data according to the target RNTI and the corresponding relation between the first RNTI and the basic parameter set;

wherein the base parameter set comprises at least one of the following parameters: the number of subcarriers in a specific bandwidth, the number of subcarriers in a physical resource block PRB, the length of an orthogonal frequency division multiplexing OFDM symbol, the number of points for fourier transform or inverse fourier transform for generating an OFDM signal, the number of OFDM symbols in a transmission time interval TTI, the number of TTIs included in a specific time length, and the length of a signal prefix.

2. The method of claim 1, wherein the method further comprises:

and the terminal successfully descrambles the CRC in the downlink control information by using the second RNTI and determines a receiving end for receiving the downlink control information as the terminal.

3. The method of claim 1, wherein the method further comprises:

and the terminal successfully descrambles the CRC in the downlink control information by using the target RNTI and determines a receiving end of the downlink control information as the terminal.

4. The method according to any of claims 1-3, wherein the at least one first RNTI is a plurality of first RNTIs, the plurality of first RNTIs are first RNTIs corresponding to all basic parameter sets pre-stored by the terminal, and different first RNTIs of the plurality of first RNTIs are used for indicating different basic parameter sets.

5. The method as claimed in any of claims 1-3, wherein the terminal uses at least one first Radio Network Temporary Identity (RNTI) to descramble Cyclic Redundancy Check (CRC) in downlink control information, and determines a first RNTI of the at least one first RNTI as a target RNTI, wherein successfully descrambling the CRC, comprises:

the terminal uses at least one first RNTI in a first set to descramble the CRC, and determines the first RNTI for successfully descrambling the CRC as the target RNTI, wherein the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of a first service.

6. The method of claim 5, wherein the first set is a subset of a second set, the second set comprising all first RNTIs pre-stored by the terminal.

7. The method of claim 6, wherein transmission parameters in a basic parameter set indicated by the first RNTI in the second set satisfy transmission requirements of a plurality of different services.

8. The method of claim 5, wherein the method further comprises:

and the terminal receives configuration information sent by the network equipment, wherein the configuration information is used for configuring the first set for the terminal.

9. The method of any one of claims 5, wherein the first traffic is ultra-reliable low latency communication (URLLC) traffic or enhanced mobile broadband (eMBB) traffic.

10. The method of any one of claims 1-3, further comprising:

11. A method for determining a base parameter set, comprising:

the network equipment generates downlink control information, wherein cyclic redundancy check codes (CRC) in the downlink control information are scrambled by a target Radio Network Temporary Identifier (RNTI) corresponding to a target basic parameter set, and the target RNTI is used for indicating the target basic parameter set;

the network equipment sends the downlink control information to a terminal, the terminal is used for descrambling the CRC by using at least one first RNTI, determining the first RNTI which successfully descrambles the CRC in the at least one first RNTI as the target RNTI, and determining the target basic parameter set for transmitting data according to the target RNTI and the corresponding relation between the first RNTI and the basic parameter set; wherein the base parameter set comprises at least one of the following parameters: the number of subcarriers in a specific bandwidth, the number of subcarriers in a physical resource block PRB, the length of an orthogonal frequency division multiplexing OFDM symbol, the number of points for fourier transform or inverse fourier transform for generating an OFDM signal, the number of OFDM symbols in a transmission time interval TTI, the number of TTIs included in a specific time length, and the length of a signal prefix.

12. The method of claim 11, wherein the network device generating the downlink control information comprises:

the network device generates the downlink control information, the CRC is scrambled through a second RNTI, and the second RNTI is used for indicating a terminal receiving the downlink control information.

13. The method of claim 11, wherein the target RNTI is also used to indicate a terminal receiving the downlink control information.

14. The method according to any of claims 11-13, wherein the at least one first RNTI is a plurality of first RNTIs, the plurality of first RNTIs being first RNTIs corresponding to all base parameter sets, different first RNTIs of the plurality of first RNTIs being used to indicate different base parameter sets.

15. The method of claim 14, wherein the network device generates downlink control information, wherein a Cyclic Redundancy Check (CRC) in the downlink control information is scrambled by a target base parameter set Radio Network Temporary Identity (RNTI) first RNTI, and wherein the target RNTI is used for indicating the target base parameter set, and the method comprises:

the network equipment determines the target RNTI from a first set, the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of a first service;

the network device generates the downlink control information, and the downlink control information scrambles the CRC using the target RNTI.

16. The method of claim 15, wherein the first set is a subset of a second set, the second set comprising all first RNTIs pre-stored by the terminal.

17. The method of claim 16, wherein transmission parameters in a basic parameter set indicated by the first RNTI in the second set satisfy transmission requirements of a plurality of different services.

18. The method of claim 15, wherein the method further comprises:

and the network equipment sends configuration information to the terminal, wherein the configuration information is used for configuring the first set for the terminal.

19. The method of any one of claims 15, wherein the first traffic is ultra-reliable low latency communication, URLLC, traffic or enhanced mobile broadband, eMBB, traffic.

20. The method of any one of claims 11-13, further comprising:

and the network equipment sends a high-level signaling to the terminal, wherein the high-level signaling carries the corresponding relation between the first RNTI and the basic parameter set.

21. A terminal, comprising:

a first determining unit, configured to descramble a Cyclic Redundancy Check (CRC) in downlink control information using at least one first Radio Network Temporary Identifier (RNTI), and determine that a first RNTI in the at least one first RNTI that successfully descrambles the CRC is a target RNTI;

a second determining unit, configured to determine the target basic parameter set for data transmission according to the target RNTI and a corresponding relationship between the first RNTI and the basic parameter set;

22. The terminal of claim 21, wherein the terminal further comprises:

a third determining unit, configured to determine, by using the second RNTI, that the CRC in the downlink control information is successfully descrambled, that a receiving end that receives the downlink control information is the terminal.

23. The terminal of claim 21, wherein the terminal further comprises:

a fourth determining unit, configured to determine that a receiving end of the downlink control information is the terminal by successfully descrambling the CRC in the downlink control information using the target RNTI.

24. The terminal according to any of claims 21-23, wherein the at least one first RNTI is a plurality of first RNTIs, the plurality of first RNTIs are first RNTIs corresponding to all basic parameter sets pre-stored by the terminal, and different first RNTIs of the plurality of first RNTIs are used for indicating different basic parameter sets.

25. The terminal according to any of claims 21-23, wherein the first determining unit is specifically configured to:

descrambling the CRC by using at least one first RNTI in a first set, and determining the first RNTI for successfully descrambling the CRC as the target RNTI, wherein the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of a first service.

26. The terminal of claim 25, wherein the first set is a subset of a second set, the second set comprising all first RNTIs pre-stored by the terminal.

27. The terminal of claim 26, wherein transmission parameters in the basic parameter set indicated by the first RNTI in the second set satisfy transmission requirements of a plurality of different services.

28. The terminal of claim 25, wherein the terminal further comprises:

a first receiving unit, configured to receive configuration information sent by the network device, where the configuration information is used to configure the first set for the terminal.

29. The terminal of any of claim 25, wherein the first traffic is an ultra-reliable low latency communication, URLLC, traffic or an enhanced mobile broadband, eMBB, traffic.

30. The terminal according to any of claims 21-23, wherein the terminal further comprises:

a second receiving unit, configured to receive a high-level signaling sent by the network device, where the high-level signaling carries a correspondence between the first RNTI and the basic parameter set.

31. A network device, comprising:

a generating unit, configured to generate downlink control information, where a Cyclic Redundancy Check (CRC) in the downlink control information is scrambled by a target Radio Network Temporary Identifier (RNTI) corresponding to a target basic parameter set, and the target RNTI is used to indicate the target basic parameter set;

a sending unit, configured to send the downlink control information to a terminal, where the terminal is configured to descramble the CRC using at least one first RNTI, determine a first RNTI in the at least one first RNTI that successfully descrambles the CRC as the target RNTI, and determine the target basic parameter set for transmitting data according to the target RNTI and a correspondence between the first RNTI and the basic parameter set; wherein the base parameter set comprises at least one of the following parameters: the number of subcarriers in a specific bandwidth, the number of subcarriers in a physical resource block PRB, the length of an orthogonal frequency division multiplexing OFDM symbol, the number of points for fourier transform or inverse fourier transform for generating an OFDM signal, the number of OFDM symbols in a transmission time interval TTI, the number of TTIs included in a specific time length, and the length of a signal prefix.

32. The network device of claim 31, wherein the generating unit is further to:

and generating the downlink control information, wherein the CRC is also scrambled through a second RNTI (radio network temporary identifier), and the second RNTI is used for indicating a terminal for receiving the downlink control information.

33. The network device of claim 31, wherein the target RNTI is also used to indicate a terminal receiving the downlink control information.

34. The network device of any one of claims 31-33, wherein at least one first RNTI is a plurality of first RNTIs, the plurality of first RNTIs being first RNTIs corresponding to all base parameter sets, different first RNTIs of the plurality of first RNTIs being used to indicate different base parameter sets.

35. The network device of claim 34, wherein the generating unit is specifically configured to:

determining the target RNTI from a first set, wherein the first set comprises the at least one first RNTI, and transmission parameters in a basic parameter set indicated by each first RNTI in the at least one first RNTI in the first set meet the transmission requirement of first services;

and generating the downlink control information, wherein the downlink control information uses the target RNTI to scramble the CRC.

36. The network device of claim 35, wherein the first set is a subset of a second set, the second set comprising all first RNTIs pre-stored by the terminal.

37. The network device of claim 36, wherein transmission parameters in a base parameter set indicated by a first RNTI in the second set satisfy transmission requirements of a plurality of different services.

38. The network device of claim 35, wherein the network device further comprises:

a first sending unit, configured to send configuration information to the terminal, where the configuration information is used to configure the first set for the terminal.

39. The network device of any one of claims 35, wherein the first traffic is ultra-reliable low latency communication (URLLC) traffic or enhanced mobile broadband (eMBB) traffic.

40. The network device of any one of claims 31-33, wherein the network device further comprises:

and a second sending unit, configured to send a high-level signaling to the terminal, where the high-level signaling carries a correspondence between the first RNTI and the basic parameter set.