CN117040706A

CN117040706A - DCI determination method, equipment and device

Info

Publication number: CN117040706A
Application number: CN202210476094.4A
Authority: CN
Inventors: 司倩倩; 赵越; 高雪娟; 邢艳萍; 李书朋
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-11-10
Also published as: WO2023207397A1

Abstract

The embodiment of the application relates to the technical field of wireless communication, in particular to a DCI (downlink control information) determining method, equipment and device, which are used for accurately determining DCI aiming at a full duplex terminal with non-overlapping sub-bands. The embodiment of the application determines the sub-band allocation information in one BWP configured for the terminal; wherein the subband allocation information indicates a subband for uplink transmission and/or a subband for downlink transmission; and determining the FDRA domain in the DCI according to the sub-band allocation information. Compared with DCI in FDD and TDD communication modes, the DCI determined based on the sub-band allocation information in one BWP configured for the terminal is reduced DCI, so that the transmission reliability of control information is improved, and the system performance is further improved.

Description

DCI determination method, equipment and device

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a DCI determining method, apparatus, and device.

Background

The fifth generation new wireless 5G NR (5 Generation New Radio) system supports time division duplexing (Time Domain Duplex, TDD) and frequency division duplexing (Frequency Domain Duplex, FDD), which refer to two duplexing modes of communication in the mobile communication technology. The TDD mode transmits and receives at different moments of the same frequency channel, namely carrier wave, and distinguishes uplink and downlink transmission resources through time; the FDD mode simultaneously transmits and receives on different frequency channels, and distinguishes resources for uplink and downlink transmission by frequency.

The 5G NR will support full duplex with non-overlapping sub-bands in the Rel-18 phase, i.e. the base station can simultaneously transmit and receive in one band/carrier/BWP over different sub-bands at the same time, with non-overlapping sub-bands for transmission and reception.

The frequency domain resource allocation (Frequency Domain Resource Allocation, FDRA) field in the downlink control information (Downlink Control Information, DCI) is used to indicate the frequency domain resource where the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) or the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) is located, but since the uplink and downlink transmission resources are divided in one frequency band or carrier or bandwidth part (Band Width Part BWP), for a full duplex terminal, the bandwidth available for uplink or downlink transmission in one specific time unit by the terminal is reduced, and therefore, for a full duplex terminal with non-overlapping subbands, there is no DCI determination scheme yet.

Disclosure of Invention

The embodiment of the application provides a DCI determining method, equipment and device, which are used for accurately determining DCI aiming at a full duplex terminal with non-overlapping sub-bands.

In a first aspect, an embodiment of the present application provides a DCI determining method, including:

Determining sub-band allocation information within one BWP configured for the terminal; wherein, the sub-band allocation information indicates a sub-band used for uplink transmission and/or a sub-band used for downlink transmission;

and determining the FDRA domain in the DCI according to the sub-band allocation information.

Optionally, the subband allocation information indicates a subband for uplink transmission;

the determining the FDRA domain in the DCI according to the subband allocation information specifically includes:

determining the bandwidth of a sub-band for downlink transmission according to the bandwidth of the BWP and the bandwidth of the sub-band for uplink transmission;

determining the bit number of the FDRA domain corresponding to the PUSCH according to the bandwidth of the sub-band used for uplink transmission; and determining the bit number of the FDRA domain corresponding to the PDSCH according to the bandwidth of the sub-band used for downlink transmission.

Optionally, the subband allocation information indicates a subband for downlink transmission;

determining the bandwidth of a sub-band for uplink transmission according to the bandwidth of the BWP and the bandwidth of the sub-band for downlink transmission;

Optionally, if the subband allocation information indicates that there are at least two subbands in the BWP with discontinuous target transmission directions;

and determining the bit number of the FDRA domain corresponding to the physical shared channel of the target transmission direction according to the bandwidth and/or the starting position of each sub-band of the target transmission direction and the currently used resource allocation mode.

Optionally, if the currently used resource allocation mode is the resource allocation mode 0;

the determining the number of bits of the FDRA domain corresponding to the physical shared channel in the target transmission direction according to the bandwidth and the starting position of each sub-band in the target transmission direction and the currently used resource allocation mode specifically includes:

according to the bandwidth and the initial position of each sub-band in the target transmission direction, the number of RBGs corresponding to each sub-band in the target transmission direction is respectively determined;

and taking the sum of the RBG numbers corresponding to each sub-band of the target transmission direction as the bit number of the FDRA domain corresponding to the physical shared channel of the target transmission direction.

Optionally, for any one sub-band of the target transmission direction, determining the corresponding RBG number according to the following formula:

Wherein N is _RBG For the number of RBGs corresponding to the sub-bands of the target transmission direction,for the bandwidth of one sub-band of the target transmission direction,/or->Starting CRB number of one sub-band of the target transmission direction, wherein P is the number of PRBs contained in one RBG group, < ->Representing a rounding up operation, mod is a remainder operation.

Optionally, if the currently used resource allocation mode is the resource allocation mode 1;

the determining the bit number of the FDRA domain corresponding to the physical shared channel in the target transmission direction according to the bandwidth of each sub-band in the target transmission direction and the currently used resource allocation mode specifically includes:

determining the bit number of the sub-bands used for indicating the frequency domain resource allocation according to the number of the sub-bands in the target transmission direction in the BWP; and determining the bit number of the FDRA domain corresponding to the physical shared channel in the target transmission direction according to the bandwidths of the sub-bands with the largest bandwidth in the sub-bands in the at least two discontinuous target transmission directions.

Optionally, after determining the FDRA domain in the DCI according to the subband allocation information, the method further includes:

if bandwidths of the sub-bands in the target transmission directions in different time units are different, transmitting in the target time units by using the DCI;

Wherein the target time unit is determined according to the following manner:

determining a reference time unit which cannot use the DCI according to a scheduling time sequence relation and a time slot position of which the target transmission direction occupies the full BWP bandwidth; and taking other time units except the reference time unit as the target time unit.

Optionally, the determining, according to the scheduling timing relationship and the time slot position of the target transmission direction occupying the full BWP bandwidth, the reference time unit in which the DCI cannot be used specifically includes:

if bandwidths of the sub-bands used for uplink transmission in different time units are different, determining the reference time unit according to a K2 set used for representing the scheduling time sequence relation and a time slot position of which the uplink occupies the full BWP bandwidth; and/or

If bandwidths of the sub-bands used for downlink transmission in different time units are different, determining the reference time unit according to a K0 set used for representing the scheduling timing relation and a time slot position of downlink occupied full BWP bandwidth.

In a second aspect, an embodiment of the present application provides a DCI determining apparatus, including a memory, a processor, and a transceiver;

the memory is used for storing a computer program;

The transceiver is used for receiving and transmitting data under the control of the processor;

the processor is configured to read the computer program in the memory and perform the following operations:

the processor is specifically configured to:

Optionally, for any one sub-band of the target transmission direction, the processor is specifically configured to determine the corresponding RBG number according to the following formula:

wherein N is _RBG For the number of RBGs corresponding to the sub-bands of the target transmission direction,for the bandwidth of one sub-band of the target transmission direction,/or->Starting CRB number of one sub-band of the target transmission direction, wherein P is the number of PRBs contained in one RBG group, < - >Representing a rounding up operation, mod is a remainder operation.

the processor is specifically configured to:

Optionally, the processor is further configured to:

after determining the FDRA domain in the DCI according to the subband allocation information, if bandwidths of the subbands in the target transmission directions in different time units are different, transmitting in the target time unit by using the DCI;

wherein the processor determines the target time unit according to the following manner:

Optionally, the processor is specifically configured to:

In a third aspect, an embodiment of the present application provides a DCI determining apparatus, including:

a determining module, configured to determine subband allocation information in one BWP configured for the terminal; wherein, the sub-band allocation information indicates a sub-band used for uplink transmission and/or a sub-band used for downlink transmission;

and the processing module is used for determining the FDRA domain in the DCI according to the sub-band allocation information.

In a third aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program for causing the computer to execute the method described in the first aspect.

Since the embodiment of the application includes the sub-band for uplink transmission and/or the sub-band for downlink transmission in one BWP configured for the terminal. For such full duplex communication mode, when DCI is determined, subband allocation information within one BWP configured for a terminal is determined, and FDRA domain in DCI is determined according to the subband allocation information. Since the full duplex communication mode of the embodiments of the present application may have reduced bandwidths of the sub-bands for uplink transmission and the sub-bands for downlink transmission compared to FDD and TDD communication modes; in this way, compared with DCI in FDD and TDD communication modes, DCI determined based on subband allocation information in one BWP configured for a terminal is reduced DCI, thereby improving transmission reliability of control information and further improving system performance.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an alternative application scenario according to an embodiment of the present application;

fig. 2 is a flowchart of a DCI determining method according to an embodiment of the present application;

fig. 3 is a schematic diagram of BWP inner subband assignment information according to an embodiment of the present application;

fig. 4 is an overall flowchart of a DCI determining method according to an embodiment of the present application;

fig. 5 is an overall flowchart of a DCI determining method according to an embodiment of the present application;

fig. 6 is an overall flowchart of a DCI determining method according to an embodiment of the present application;

fig. 7 is a schematic diagram of time domain resource allocation according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a DCI determining apparatus according to an embodiment of the present application.

Detailed Description

In the embodiment of the application, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in embodiments of the present application means two or more, and other adjectives are similar.

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

As shown in fig. 1, an optional application scenario of the embodiment of the present application, a wireless communication system includes a terminal 10 and a network device 11;

the embodiment of the application is a full duplex communication mode; i.e. the terminal may simultaneously transmit data and receive data over different sub-bands in one frequency band or carrier or BWP, or the network device may simultaneously transmit data and receive data over different sub-bands in one frequency band or carrier or BWP.

The terminal 10 determines subband allocation information within one configured BWP, and determines an FDRA domain in DCI according to the subband allocation information; wherein the subband allocation information indicates a subband for uplink transmission and/or a subband for downlink transmission.

In addition, for the network device 11, the network device 11 determines sub-band allocation information within one BWP configured for the terminal; determining an FDRA domain in DCI according to the sub-band allocation information; wherein the subband allocation information indicates a subband for uplink transmission and/or a subband for downlink transmission.

In one BWP configured for the terminal, the sub-band for uplink transmission and the sub-band for downlink transmission do not overlap at the same time.

The determining of the DCI according to the embodiment of the present application may be determining the number of bits of the FDRA domain corresponding to the PUSCH and the number of bits of the FDRA domain corresponding to the PDSCH.

The technical scheme provided by the embodiment of the application can be applied to various systems. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G NR, and the like. Terminals and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for the terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiment of the present application. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

The terminal according to the embodiment of the application can be a device for providing voice and/or data connectivity for a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and embodiments of the present application are not limited in this respect.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

It should be noted that, in the embodiment of the present application, for the full duplex communication mode in which the subbands are not overlapped, the terminal and the network device may determine DCI in the same manner. The specific manner of determining DCI is described in detail below, and the specific manner of determining DCI described below may be applied to the terminal side and the network device side, respectively.

After determining the FDRA domain in the DCI, the network device respectively fills the control information corresponding to the PUSCH and the control information corresponding to the PUSCH according to the determined FDRA domain, and generates the DCI which needs to be sent to the terminal.

After receiving DCI sent by network equipment, a terminal acquires control information corresponding to a PUSCH and control information corresponding to the PUSCH from the DCI according to the FDRA domain in the determined DCI; namely, acquiring control information corresponding to the PUSCH from the DCI according to the determined bit number of the FDRA domain corresponding to the PUSCH, and acquiring control information corresponding to the PDSCH from the DCI according to the determined bit number of the FDRA domain corresponding to the PDSCH.

As shown in fig. 2, a flowchart of a DCI determining method according to an embodiment of the present application may be applied to a terminal side or a network device side, and may specifically include the following steps:

step S201, determining sub-band allocation information in one BWP configured for the terminal; wherein, the sub-band allocation information indicates a sub-band used for uplink transmission and/or a sub-band used for downlink transmission;

step S202, according to the sub-band allocation information, determining the FDRA domain in the DCI.

It should be noted that, in the embodiment of the present application, determining DCI may be determining the number of bits of the FDRA domain corresponding to PUSCH and the number of bits of the FDRA domain corresponding to PDSCH.

In implementation, in the embodiment of the present application, DCI is determined according to subband allocation information, and when the subband allocation information is different, the manner of determining DCI is also different, and the description is given below for different subband allocation information.

The first mode subband allocation information indicates a subband for uplink transmission or indicates a subband for downlink transmission.

1. The subband allocation information indicates subbands for uplink transmission;

determining the bandwidth of a sub-band for downlink transmission according to the bandwidth of the BWP and the bandwidth of the sub-band for uplink transmission; determining the bit number of the FDRA domain corresponding to the PUSCH according to the bandwidth of the sub-band used for uplink transmission; and determining the bit number of the FDRA domain corresponding to the PDSCH according to the bandwidth of the sub-band used for downlink transmission.

If the subband allocation information indicates that one BWP includes a plurality of subbands for uplink transmission, the bandwidth of the subband for uplink transmission in this mode one is the sum of the bandwidths of the plurality of subbands.

Since the bandwidth of the sub-band for uplink transmission is indicated by the sub-band allocation information, determining the bit number of the FDRA domain corresponding to the PUSCH according to the bandwidth of the sub-band for uplink transmission indicated by the sub-band allocation information;

The bandwidth of the sub-band for downlink transmission may be calculated according to the bandwidth of the BWP and the bandwidth of the sub-band for uplink transmission indicated by the sub-band allocation information;

in practice, the difference between the bandwidth of BWP and the bandwidth of the sub-band used for uplink transmission is used as the bandwidth of the sub-band used for downlink transmission; or,

if the guard interval is considered, the difference of the bandwidths of the subbands used for uplink transmission subtracted by the BWP and the difference of the guard interval subtracted are taken as the bandwidths of the subbands used for downlink transmission.

After the bandwidth of the sub-band for downlink transmission is calculated, determining the bit number of the FDRA domain corresponding to the PDSCH according to the calculated bandwidth of the sub-band for downlink transmission.

When determining the bit number of the FDRA domain corresponding to the PUSCH according to the bandwidth of the sub-band for uplink transmission indicated by the sub-band allocation information, determining the bit number of the FDRA domain corresponding to the PUSCH in different modes according to different currently used resource allocation modes;

the resource allocation modes of the embodiments of the present application include, but are not limited to, resource allocation mode 0 and resource allocation mode 1;

wherein resource allocation pattern 0 the resource allocation type 0 is a bitmap-based allocation pattern, the length of the field is N _RBG Bits, each bit representing a set of resource blocks (Resource Block Group, RBG), RBG ₀ To the point ofMapped in order from MSB to LSB. Wherein each resource block group contains P physical resource blocks (Physical Resource Block, PRB) whose size is jointly determined by the partial bandwidth and the higher layer configuration. The resource allocation pattern 1 is to pass the allocated resource blocks through the start position RB _start And length L _RBs To describe.

If the currently used resource allocation mode is the resource allocation mode 0, calculating the bit number of the FDRA domain corresponding to the PUSCH according to the following formula:

wherein N is _{RBG_U} For the number of bits of the FDRA domain corresponding to PUSCH,for the bandwidth of the sub-band for uplink transmission, < >>Numbering the starting common resource blocks (Common Resource Block, CRB) of the subbands for uplink transmission, P being the number of PRBs contained in one RBG group, +.>Representing a rounding up operation, mod is a remainder operation.

If the currently used resource allocation mode is the resource allocation mode 1, calculating the bit number of the FDRA domain corresponding to the PUSCH according to the following formula:

wherein N is _{RBG_U} For the number of bits of the FDRA domain corresponding to PUSCH,for the bandwidth of the sub-band for uplink transmission, < >>Representing a rounding up operation.

When determining the bit number of the FDRA domain corresponding to the PDSCH according to the calculated bandwidth of the sub-band used for downlink transmission, determining the bit number of the FDRA domain corresponding to the PDSCH in different modes according to different currently used resource allocation modes;

if the currently used resource allocation pattern is the resource allocation pattern 0, calculating the bit number of the FDRA domain corresponding to the PDSCH according to the following formula:

wherein N is _{RBG_D} For the number of bits of the FDRA domain corresponding to the PDSCH,for the bandwidth of the sub-band for downlink transmission, < >>For the starting CRB number of the sub-band for downlink transmission, P is the number of PRBs contained in one RBG group,representing a rounding up operation, mod is a remainder operation.

If the currently used resource allocation mode is the resource allocation mode 1, calculating the bit number of the FDRA domain corresponding to the PDSCH according to the following formula:

wherein N is _{RBG_D} For the number of bits of the FDRA domain corresponding to the PDSCH,for the bandwidth of the sub-band for downlink transmission, < >>Representing a rounding up operation.

2. The subband allocation information indicates subbands for downlink transmission;

determining the bandwidth of a sub-band for uplink transmission according to the bandwidth of the BWP and the bandwidth of the sub-band for downlink transmission; determining the bit number of the FDRA domain corresponding to the PUSCH according to the bandwidth of the sub-band used for uplink transmission; and determining the bit number of the FDRA domain corresponding to the PDSCH according to the bandwidth of the sub-band used for downlink transmission.

Note that, if the subband allocation information indicates that one BWP includes a plurality of subbands for downlink transmission, the bandwidth of the subband for downlink transmission in this mode one is the sum of the bandwidths of the plurality of subbands.

Since the bandwidth of the sub-band for downlink transmission is indicated by the sub-band allocation information, determining the bit number of the FDRA domain corresponding to the PDSCH according to the bandwidth of the sub-band for downlink transmission indicated by the sub-band allocation information;

the bandwidth of the sub-band for uplink transmission may be calculated according to the bandwidth of the BWP and the bandwidth of the sub-band for downlink transmission indicated by the sub-band allocation information;

in practice, the difference between the bandwidth of BWP and the bandwidth of the sub-band used for downlink transmission is used as the bandwidth of the sub-band used for uplink transmission; or,

if the guard interval is considered, the difference of the bandwidths of the subbands used for downlink transmission and the difference of the bandwidths of the guard interval are subtracted from the bandwidth of the BWP as the bandwidths of the subbands used for uplink transmission.

After the bandwidth of the sub-band for uplink transmission is calculated, determining the bit number of the FDRA domain corresponding to the PUSCH according to the calculated bandwidth of the sub-band for uplink transmission.

When determining the bit number of the FDRA domain corresponding to the PUSCH according to the calculated bandwidth of the sub-band used for uplink transmission, determining the bit number of the FDRA domain corresponding to the PUSCH in different modes according to different currently used resource allocation modes;

wherein N is _{RBG_U} For the number of bits of the FDRA domain corresponding to PUSCH,for the bandwidth of the sub-band for uplink transmission, < >>For the starting CRB number of the sub-band for uplink transmission, P is the number of PRBs contained in one RBG group,representing a rounding up operation, mod is a remainder operation.

When determining the bit number of the FDRA domain corresponding to the PDSCH according to the bandwidth of the sub-band indicated by the sub-band allocation information and used for downlink transmission, determining the bit number of the FDRA domain corresponding to the PDSCH in different modes according to different currently used resource allocation modes;

For example, one BWP inner subband allocation information as shown in fig. 3, the subband bandwidth for uplink transmission is 48 RBs assuming that the subband allocation information indicates 48 RBs of one BWP number 29 to 76 for uplink transmission.

Assuming that the bandwidth of one BWP is 106 RBs, the size of one RBG is 4; the bandwidth of the sub-band for downlink transmission is 106-48=58 RBs in 0-5 slots, assuming that the starting CRB number corresponding to the sub-band for downlink transmission is 65. The following description will take as an example the calculation of the number of bits in the FDRA domain corresponding to the PDSCH:

If the currently used resource allocation pattern is the resource allocation pattern 0, the number of bits of the FDRA field corresponding to the PDSCHBits;

if the currently used resource allocation pattern is the resource allocation pattern 1, the bit number of the FDRA field corresponding to the PDSCHBits.

As shown in fig. 4, the overall flowchart of the DCI determining method according to the embodiment of the present application may specifically include the following steps:

step S401, determining sub-band allocation information in one BWP configured for the terminal;

if the subband allocation information indicates a subband for uplink transmission, step S402 is performed; if the subband allocation information indicates a subband for downlink transmission, step S403 is performed;

step S402, determining the bandwidth of the sub-band used for downlink transmission according to the bandwidth of BWP and the bandwidth of the sub-band used for uplink transmission;

step S403, determining the bandwidth of the sub-band used for uplink transmission according to the bandwidth of BWP and the bandwidth of the sub-band used for downlink transmission;

step S404, determining the bit number of the FDRA domain corresponding to the PUSCH according to the bandwidth of the sub-band used for uplink transmission; and determining the bit number of the FDRA domain corresponding to the PDSCH according to the bandwidth of the sub-band used for downlink transmission.

Mode two, subband assignment information indicates subbands for at least two discontinuous target transmission directions within BWP;

Wherein the subband allocation information indicates that there are at least two discontinuous subbands for uplink transmission and/or there are at least two discontinuous subbands for downlink transmission in the BWP.

An alternative embodiment is to determine the FDRA domain in the DCI according to the following manner:

In practice, if the subband allocation information indicates a subband for at least two discontinuous uplink transmissions and a subband for one downlink transmission in BWP; for the uplink sub-band, determining the bit number of the FDRA domain corresponding to the PUSCH according to the bandwidth and/or the starting position of each sub-band in the target transmission direction and the currently used resource allocation mode; for the downlink sub-band, the number of bits of the FDRA domain corresponding to the PDSCH may be determined according to the manner described in the first embodiment above.

In the following description of the second mode, the mode of determining the number of bits in the FDRA domain corresponding to the physical shared channel in at least two discontinuous target transmission directions is described.

1. If the subband allocation information indicates that there are at least two discontinuous subbands for uplink transmission in the BWP, determining the number of bits of the FDRA domain corresponding to the PUSCH according to the following manner:

when the currently used resource allocation mode is the resource allocation mode 0, respectively determining the number of RBGs corresponding to each sub-band of uplink transmission according to the bandwidth and the starting position of each sub-band of uplink transmission; and taking the sum of the RBG numbers corresponding to each sub-band of the uplink transmission as the bit number of the FDRA domain corresponding to the PUSCH.

In implementation, for any one sub-band used for uplink transmission, the number of RBGs corresponding to the sub-band is determined according to the following formula:

wherein N is _RBG For the number of RBGs corresponding to the uplink transmission sub-bands,one for uplink transmissionBandwidth of sub-band, ">Starting CRB number of one sub-band of uplink transmission, wherein P is the number of PRBs contained in one RBG group, < >>Representing a rounding up operation, mod is a remainder operation.

When the currently used resource allocation mode is the resource allocation mode 1, determining the bit number of the sub-band used for indicating the frequency domain resource allocation according to the number of the sub-bands of the uplink transmission in the BWP; and determining the bit number of the FDRA domain corresponding to the PUSCH according to the bandwidths of the sub-bands with the largest bandwidth in the at least two discontinuous sub-bands for uplink transmission.

Wherein the number of bits for indicating the sub-bands used for frequency domain resource allocation is determined according to the following formula:

n＝ceil(log2(N))；

n is the number of bits indicating the sub-band used for frequency domain resource allocation, N is the number of sub-bands for uplink transmission in BWP, ceil () represents an operation of returning a minimum integer greater than or equal to a specified expression.

In implementation, when determining the number of bits of the FDRA domain corresponding to the PUSCH according to the bandwidths of the sub-bands with the largest bandwidth in at least two discontinuous sub-bands for uplink transmission, the number of bits of the FDRA domain corresponding to the PUSCH may be determined according to the following formula:

The positional relationship between the bits for indicating the subband used for frequency domain resource allocation and the bits of the FDRA domain corresponding to the PUSCH is not limited; for example, bits for indicating the sub-band used for frequency domain resource allocation may be placed before or after bits of the FDRA domain corresponding to the PUSCH. Or the protocol specifies in advance the positional relationship between bits indicating the subband used for frequency domain resource allocation and bits of the FDRA domain corresponding to the PUSCH.

As shown in fig. 5, in the overall flowchart of the DCI determining method according to the embodiment of the present application, it is assumed that the subband allocation information indicates that there are at least two discontinuous subbands for uplink transmission in BWP, and the method specifically may include the following steps:

step S501, determining subband allocation information in a BWP configured for a terminal;

if the currently used resource allocation mode is the resource allocation mode 0, executing step S502; if the currently used resource allocation mode is the resource allocation mode 1, executing step S504;

step S502, according to the bandwidth and the initial position of each sub-band of the uplink transmission, respectively determining the number of RBGs corresponding to each sub-band of the uplink transmission;

step S503, taking the sum of RBG numbers corresponding to each sub-band of uplink transmission as the bit number of FDRA domain corresponding to PUSCH;

step S504, determining the bit number of the sub-band used for indicating the frequency domain resource allocation according to the number of the sub-band of the uplink transmission in BWP;

step S505, determining the number of bits of the FDRA domain corresponding to the PUSCH according to the bandwidths of the sub-bands with the largest bandwidth in the at least two discontinuous sub-bands for uplink transmission.

2. If the subband allocation information indicates that there are at least two discontinuous subbands for downlink transmission in the BWP, determining the number of bits in the FDRA domain corresponding to the PDSCH according to the following manner:

When the currently used resource allocation mode is the resource allocation mode 0, respectively determining the number of RBGs corresponding to each sub-band of downlink transmission according to the bandwidth and the starting position of each sub-band of downlink transmission; and taking the sum of the RBG numbers corresponding to each sub-band of the downlink transmission as the bit number of the FDRA domain corresponding to the PDSCH.

In implementation, for any one sub-band used for downlink transmission, the number of RBGs corresponding to the sub-band is determined according to the following formula:

wherein N is _RBG For the number of RBGs corresponding to the subbands of the downlink transmission,bandwidth of one subband for downstream transmission, < >>Starting CRB number of one sub-band for downlink transmission, the P is the number of PRBs contained in one RBG group,representing a rounding up operation, mod is a remainder operation.

When the currently used resource allocation mode is the resource allocation mode 1, determining the bit number of the sub-band used for indicating the frequency domain resource allocation according to the number of the sub-bands transmitted in the downlink in the BWP; and determining the bit number of the FDRA domain corresponding to the PDSCH according to the bandwidth of the sub-band with the largest bandwidth in the at least two discontinuous sub-bands for downlink transmission.

n＝ceil(log2(N))；

N is the number of bits indicating the subbands used for frequency domain resource allocation, N is the number of subbands for downlink transmission in BWP, and ceil () represents an operation of returning a minimum integer greater than or equal to a specified expression.

In implementation, when determining the number of bits of the FDRA domain corresponding to the PDSCH according to the bandwidth of the sub-band with the largest bandwidth in at least two discontinuous sub-bands for downlink transmission, the number of bits of the FDRA domain corresponding to the PDSCH may be determined according to the following formula:

wherein N is _{RBG_D} For the number of bits of the FDRA domain corresponding to the PDSCH,for the bandwidth of the sub-band for uplink transmission, < >>Representing a rounding up operation.

The positional relationship between the bits for indicating the subband used for allocating the frequency domain resources and the bits of the FDRA domain corresponding to the PDSCH is not limited; for example, bits for indicating the subbands used for frequency domain resource allocation may be placed before or after bits of the FDRA domain corresponding to the PDSCH. Or the protocol specifies in advance the positional relationship between bits indicating the subband used for allocating the frequency domain resources and bits of the FDRA domain corresponding to the PDSCH.

As shown in fig. 6, in the overall flowchart of the DCI determining method according to the embodiment of the present application, it is assumed that the subband allocation information indicates that there are at least two discontinuous subbands for downlink transmission in BWP, and the method specifically may include the following steps:

Step S601, determining subband allocation information in a BWP configured for a terminal;

if the currently used resource allocation mode is the resource allocation mode 0, executing step S602; if the currently used resource allocation mode is the resource allocation mode 1, executing step S604;

step S602, according to the bandwidth and the initial position of each sub-band of the downlink transmission, respectively determining the number of RBGs corresponding to each sub-band of the downlink transmission;

step S603, taking the sum of RBG numbers corresponding to each sub-band of downlink transmission as the bit number of FDRA domain corresponding to PDSCH;

step S604, determining the bit number of the sub-band used for indicating the frequency domain resource allocation according to the number of the sub-band of the downlink transmission in BWP;

step S605, determining the number of bits in the FDRA domain corresponding to the PDSCH according to the bandwidths of the sub-bands with the largest bandwidth in the at least two discontinuous sub-bands for downlink transmission.

E.g., one BWP inner subband allocation information as shown in fig. 3, assuming that the subband allocation information indicates one subband for uplink transmission and two subbands for downlink transmission; and 48 RBs of one BWP number 29 to 76 are used for uplink transmission, the subband bandwidth for uplink transmission is 48 RBs. The two downlink transmission sub-bands comprise sub-bands with numbers of 0-28 and sub-bands with numbers of 77-105, CRB numbers corresponding to the sub-bands with numbers of 0-28 are 65-93, and CRB numbers corresponding to the sub-bands with numbers of 77-105 are 142-170.

The following describes a calculation procedure for determining the number of bits of the FDRA domain corresponding to the PDSCH with reference to fig. 3:

1. if the currently used resource allocation pattern is the resource allocation pattern 0.

And respectively determining the number of RBGs corresponding to each sub-band of the downlink transmission according to the bandwidth and the starting position of each sub-band of the downlink transmission.

RBG number corresponding to sub-bands with numbers of 0-28

The first RBG in the sub-band has a size of The size of the last RBG in a subband is determined as follows: when->When the size isOtherwise, the size is P; then in an embodiment of the application, due to (29+65) mod4>0, the last RBG in the subband has a size of (29+65) mod4 = 2.

Number of RBGs corresponding to sub-bands numbered 77-105

The first RBG in the sub-band has a size of Due to (29+142) mod4>0, the last RBG in the subband has a size of (29+142) mod4 = 3.

Then, the number of bits of the FDRA domain corresponding to the PDSCH is 8+8=16.

2. If the currently used resource allocation mode is the resource allocation mode 1.

Because the number of the sub-bands for downlink transmission divided by the embodiment of the application is two, the bit number of the sub-band for indicating the frequency domain resource allocation is determined according to the number of the sub-bands for downlink transmission in BWP; and determining the bit number of the FDRA domain corresponding to the PDSCH according to the bandwidth of the sub-band with the largest bandwidth in at least two discontinuous sub-bands for downlink transmission.

The number of bits for indicating the subband used for frequency domain resource allocation n=ceil (log 2 (N))=1;

and, since the bandwidths of the two subbands used for downlink transmission are both 29, the number of bits of the FDRA domain corresponding to the PDSCH is determined according to the bandwidth of any one of the subbands:

number of bits of FDRA field corresponding to PDSCH/>

In addition, after determining the FDRA domain in the DCI according to the subband allocation information, if bandwidths of subbands in the target transmission directions in different time units are different, transmitting in the target time unit by using the DCI;

wherein the target time unit is determined according to the following manner:

It should be noted that if bandwidths of corresponding sub-bands of PDSCH and/or PUSCH transmissions in different time units are different, the number of bits in the FDRA domain may not be reduced by DCI transmitted at any time, and it is necessary to determine when to use the reduced DCI for transmission;

the DCI determined by the DCI determining method described in the foregoing embodiments of the present application is reduced DCI compared with the related art.

In some possible embodiments, if bandwidths of the sub-bands for uplink transmission in different time units are different, determining the reference time unit according to a K2 set used to represent the scheduling timing relationship and a slot position where uplink occupies the full BWP bandwidth; and/or

For example, as shown in the time domain resource allocation diagram of fig. 7, in each radio frame of 10ms, only slots #2 to #6 can use the uplink sub-band for transmission, and only one transmission direction exists in other slots. Then for PUSCH transmission, the PUSCH transmitted in slots #7 to #9 needs to determine the FDRA domain in the DCI based on the BWP bandwidth, the PUSCH transmitted in the uplink subbands of slots #2 to #6 may determine the FDRA domain of the DCI based on the bandwidth of the subbands, and since there is a certain slot spacing between the DCI of the PUSCH and the corresponding PUSCH transmission, the K2 set may be determined based on the configured TDRA. For PDSCH transmission, the PDSCH transmitted in slots #0 to #1 needs to determine the FDRA domain in the DCI based on the BWP bandwidth, the PDSCH transmitted in the downlink sub-bands of slots #2 to #6 may determine the FDRA domain of the DCI based on the bandwidth of the sub-bands, and since there may be a certain slot interval between the DCI of the PDSCH and the corresponding PUSCH transmission, the K0 set may be determined based on the configured TDRA. The determination of which slots to transmit in using the reduced DCI is based on the bandwidth and scheduling timing relationship corresponding to the PDSCH or PUSCH transmission slots.

Case 1: if only one value of 4 is included in the K2 set, it may be determined that the reduced DCI for scheduling PUSCH transmission cannot be used in slots #3 to #5 based on the configured K2 set and the uplink slot positions (slots #7 to # 9) occupying the full BWP bandwidth. The reduced DCI may be transmitted in the remaining slots (slots # 0- # 2) for scheduling PUSCH transmissions; for example, DCI transmitted in slot #0, K2 value of 4, PUSCH transmission in scheduled slot #4 may be scheduled using reduced DCI; DCI is transmitted in slot #3, PUSCH transmission in slot #7 is scheduled, and K2 is 4, then reduced DCI cannot be used for scheduling.

Case 2: the K2 set contains values {2,3,4,5}, then based on the configured K2 set and the uplink slot positions (slots #7 to # 9) occupying the full BWP bandwidth, it may be determined that the reduced DCI for scheduling PUSCH transmission cannot be used in slots #2 to # 7. The reduced DCI may be transmitted in the remaining slots (slots # 0- # 1) for scheduling PUSCH transmissions; for example, DCI transmitted in slot #0, K2 value of 5, PUSCH transmission in scheduled slot #6 may be scheduled using reduced DCI; the DCI transmitted in slot #2, K2 value of 3, schedules PUSCH transmission in slot #5 and cannot be scheduled using reduced DCI because the DCI in slot #2 may also schedule PUSCH transmission in slot #7, in order to avoid increasing the number of blind checks, the DCI scheduled for a different slot cannot change size when transmitted in one slot and thus is always determined according to a larger bandwidth and cannot be reduced.

Case 3: the value contained in the K0 set is {0}, it may be determined that the reduced DCI for scheduling PDSCH transmission cannot be used in slots #0 to #1 based on the configured K0 set and the downlink slot (slots #0 to # 1) positions occupying the full BWP bandwidth. Reduced DCIs may be transmitted in the remaining slots (slots # 2- # 6) for scheduling PDSCH transmissions; for example, DCI is transmitted in slot #0 with K0 value of 0, PDSCH transmission in slot #0 is scheduled, and reduced DCI is not used for scheduling; DCI is transmitted in slot #3, PDSCH transmission in slot #3 is scheduled, and the K0 value is 0, then the reduced DCI is used for scheduling.

Case 4: the K0 set contains values {0,1,2,3,4,5}, the DCI for scheduling PDSCH transmission cannot be used in slots #0 to #1 and slots #5 to #6 based on the configured K0 set and the downlink slot (slots #0 to # 1) positions occupying the full BWP bandwidth. The reduced DCI may be transmitted in the remaining slots (slots # 2- # 4) for scheduling PDSCH transmissions. For example, DCI is transmitted in slot #0 with a K0 value of 3, PDSCH transmissions in slot #3 are scheduled without using reduced DCI (since DCI in slot #0 may also schedule PDSCH transmissions in slot # 0); DCI is transmitted in slot #3, PDSCH transmission in slot #5 is scheduled, and the K0 value is 2, then the reduced DCI is used for scheduling.

Based on the same inventive concept, the embodiments of the present application provide a DCI determining apparatus, where the DCI determining apparatus may be a terminal; as shown in fig. 8, a terminal according to an embodiment of the present application includes a memory 801, a processor 802, and a transceiver 803;

the memory 801 is used for storing a computer program;

the transceiver 803 is configured to receive and transmit data under the control of the processor 802;

the processor 802 is configured to read the computer program in the memory 801 and perform the following operations:

the processor 802 is specifically configured to:

Optionally, for any one sub-band of the target transmission direction, the processor 802 is specifically configured to determine the corresponding RBG number according to the following formula:

the processor 802 is specifically configured to:

Optionally, the processor 802 is further configured to:

Wherein the processor 802 determines the target time unit according to the following manner:

Optionally, the processor 802 is specifically configured to:

Where in FIG. 8, a bus architecture may comprise any number of interconnected buses and bridges, with one or more processors, represented in particular by processor 802, and various circuits of memory, represented by memory 801, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 803 may be a plurality of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, etc. The user interface 804 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 802 is responsible for managing the bus architecture and general processing, and the memory 801 may store data used by the processor 802 in performing operations.

Alternatively, the processor 802 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field-programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), which may also employ a multi-core architecture.

The processor is configured to execute any of the DCI determining methods provided in the embodiments of the present application according to the obtained executable instructions by calling a computer program stored in the memory. The processor and the memory may also be physically separate.

The embodiment of the application provides DCI determining equipment which can also be network equipment; as shown in fig. 9, a network device according to an embodiment of the present application includes a memory 901, a processor 902, and a transceiver 903;

the memory 901 is used for storing a computer program;

the transceiver 903 is configured to receive and transmit data under the control of the processor 902;

the processor 902 is configured to read the computer program in the memory 901 and perform the following operations:

the processor 902 is specifically configured to:

Optionally, for any one sub-band of the target transmission direction, the processor 902 is specifically configured to determine the corresponding RBG number according to the following formula:

the processor 902 is specifically configured to:

Optionally, the processor 902 is further configured to:

wherein the processor 902 determines the target time unit according to the following manner:

Optionally, the processor 902 is specifically configured to:

Where in FIG. 9, a bus architecture may comprise any number of interconnected buses and bridges, with one or more processors, represented in particular by processor 902, and various circuits of the memory, represented by memory 901, being linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 903 may be a plurality of elements, i.e. include a transmitter and a receiver, providing a unit for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 902 is responsible for managing the bus architecture and general processing, and the memory 901 may store data used by the processor 902 in performing operations.

Alternatively, the processor 902 may be CPU, ASIC, FPGA or a CPLD, and the processor may also employ a multi-core architecture.

As shown in fig. 10, a DCI determining apparatus according to an embodiment of the present application includes:

a determining module 1001, configured to determine subband allocation information in one BWP configured for a terminal; wherein, the sub-band allocation information indicates a sub-band used for uplink transmission and/or a sub-band used for downlink transmission;

a processing module 1002, configured to determine an FDRA domain in the DCI according to the subband allocation information.

the processing module 1002 is specifically configured to:

Optionally, for any one sub-band of the target transmission direction, the processing module 1002 is specifically configured to determine the corresponding RBG number according to the following formula:

the processing module 1002 is specifically configured to:

Optionally, the processing module 1002 is further configured to:

Wherein the processing module 1002 determines the target time unit according to the following manner:

Optionally, the processing module 1002 is specifically configured to:

It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation. In addition, each functional module in each embodiment of the present application may be integrated into one module, or each module may exist alone physically, or two or more modules may be integrated into one module. The integrated modules may be implemented in hardware or in software functional modules.

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

In addition, an embodiment of the present application further provides a computer-readable storage medium storing a computer program for causing the computer to execute any one of the DCI determining methods described above.

The computer-readable storage medium can be any available medium or data storage device that can be accessed by a computer, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), etc.

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

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

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

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

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method for determining downlink control information DCI, the method comprising:

determining sub-band allocation information within one bandwidth part BWP configured for the terminal; wherein, the sub-band allocation information indicates a sub-band used for uplink transmission and/or a sub-band used for downlink transmission;

and determining the FDRA domain of the frequency domain resource allocation in the DCI according to the sub-band allocation information.

2. The method of claim 1, wherein the subband allocation information indicates a subband for uplink transmission;

determining the bit number of the FDRA domain corresponding to the Physical Uplink Shared Channel (PUSCH) according to the bandwidth of the sub-band for uplink transmission; and determining the bit number of the FDRA domain corresponding to the physical downlink shared channel PDSCH according to the bandwidth of the sub-band used for downlink transmission.

3. The method of claim 1, wherein the subband allocation information indicates a subband for downlink transmission;

4. The method of claim 1, wherein if the subband allocation information indicates at least two discontinuous subbands of the target transmission direction in the BWP;

5. The method of claim 4, wherein if the currently used resource allocation pattern is resource allocation pattern 0;

According to the bandwidth and the initial position of each sub-band of the target transmission direction, the number of RBGs corresponding to each sub-band of the target transmission direction is respectively determined;

6. The method of claim 5, wherein for any one of the subbands of the target transmission direction, a corresponding RBG number is determined according to the following formula:

wherein N is _RBG For the number of RBGs corresponding to the sub-bands of the target transmission direction,for the bandwidth of one sub-band of the target transmission direction,/or->Numbering the initial common resource block CRB of one sub-band of the target transmission direction, wherein P is the number of physical resource blocks PRB contained in one RBG group,/>Representing a rounding up operation, mod is a remainder operation.

7. The method of claim 4, wherein if the currently used resource allocation pattern is resource allocation pattern 1;

8. The method of any of claims 1-7, wherein after determining the FDRA domain in the DCI based on the subband allocation information, the method further comprises:

wherein the target time unit is determined according to the following manner:

9. The method of claim 8, wherein the determining the reference time unit for which the DCI cannot be used according to the scheduling timing relationship and the slot position where the target transmission direction occupies the full BWP bandwidth specifically comprises:

10. A DCI determining apparatus comprising a memory, a processor, and a transceiver;

the memory is used for storing a computer program;

11. The apparatus of claim 10, wherein the subband allocation information indicates a subband for uplink transmission;

The processor is specifically configured to:

12. The apparatus of claim 10, wherein the subband allocation information indicates a subband for downlink transmission;

the processor is specifically configured to:

13. The apparatus of claim 10, wherein if the subband allocation information indicates at least two discontinuous subbands of a target transmission direction within the BWP;

the processor is specifically configured to:

14. The apparatus of claim 13, wherein if the currently used resource allocation pattern is resource allocation pattern 0;

the processor is specifically configured to:

15. The apparatus of claim 14, wherein the processor is configured to determine, for any one of the subbands of the target transmission direction, a corresponding RBG number according to the following formula:

16. The apparatus of claim 13, wherein if the currently used resource allocation pattern is resource allocation pattern 1;

the processor is specifically configured to:

17. The apparatus of any one of claims 10 to 16, wherein the processor is further configured to:

18. The apparatus of claim 17, wherein the processor is specifically configured to:

19. A DCI determining apparatus, the apparatus comprising:

20. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for causing the computer to execute the method of any one of claims 1 to 9.