CN114390679A

CN114390679A - Resource allocation information determining method, resource allocation information indicating method, terminal and network equipment

Info

Publication number: CN114390679A
Application number: CN202011108216.1A
Authority: CN
Inventors: 王磊; 邢艳萍
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2022-04-22

Abstract

The invention provides a resource allocation information determining method, an indicating method, a terminal and network equipment, wherein the method comprises the following steps: a terminal receives DCI, wherein the DCI comprises a resource allocation indication field, and the resource allocation indication field is used for indicating the allocation level of resource allocation; and the terminal determines the allocation level of the resource allocation according to the resource allocation indication domain. The invention can dynamically indicate the allocation level of the resource allocation during the resource allocation, thereby improving the flexibility of the resource allocation.

Description

Resource allocation information determining method, resource allocation information indicating method, terminal and network equipment

Technical Field

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

Background

The resource allocation type may include a resource allocation type 0(RA type0) and a resource allocation type 1(RA type1) in some communication systems, wherein the resource allocation type0 may allocate discontinuous frequency domain resources, indicate allocated resources in a bitmap (bitmap) manner, and the resource allocation type1 may allocate continuous resources. However, at present, no matter under which resource allocation type, the terminal determines the allocation resources according to the predetermined resource allocation level, which results in poor flexibility of resource allocation.

Disclosure of Invention

Embodiments of the present invention provide a resource allocation information determining method, an indication method, a terminal and a network device, which can solve the problem of relatively poor flexibility of resource allocation.

The embodiment of the invention provides a method for determining resource allocation information, which comprises the following steps:

a terminal receives Downlink Control Information (DCI), wherein the DCI comprises a resource allocation indication field, and the resource allocation indication field is used for indicating the allocation level of resource allocation;

and the terminal determines the allocation level of the resource allocation according to the resource allocation indication domain.

Optionally, the resource allocation indication field includes: a Frequency Domain Resource Allocation (FDRA) field, a first bit of the FDRA field being used to indicate an Allocation level of Resource Allocation, wherein the terminal determines a bit length of the FDRA field according to a Bandwidth part (BWP) size and a Resource Allocation manner; or

The resource allocation indication field includes: a Time Domain Resource Allocation (TDRA) field indicating an Allocation level of Resource Allocation.

Optionally, the first bit is used to explicitly or implicitly indicate whether the Resource allocation is of Sub-Resource Block (Sub-RB) level.

Optionally, the method further includes:

the terminal determines whether to initiate a handover of the Sub-RB level resource allocation with other levels of resource allocation.

Optionally, the determining, by the terminal, whether to start switching between Sub-RB level resource allocation and other levels of resource allocation includes:

the terminal determines whether to start switching between Sub-RB level resource allocation and other level resource allocation through the received network side message, wherein the network side message comprises one of the following items:

radio Resource Control (RRC) signaling, a Media Access Control Element (MAC CE), and a group common physical downlink Control channel pdcch (group common pdcch).

Optionally, the terminal parses the FDRA domain according to the first bit, and determines the frequency domain resource for transmission indicated by the FDRA according to a parsing result.

Optionally, the second bit of the FDRA domain is used to indicate a frequency domain resource for transmission.

Optionally, in a case that the first bit indicates a Sub-RB level resource allocation, the second bit is used to indicate a Sub-RB level frequency domain resource for transmission.

Optionally, in a case that the resource allocation manner is a resource allocation type0, the second bit includes: a first portion of bits, wherein:

the first part of bits are bitmap (bitmap), each bit in the bitmap corresponds to one RB in a sub-band, and the number and the position of sub-carriers used for transmission in the RB indicated by the bitmap are agreed by network configuration or protocols; or

The first part of bits is used for indicating one RB in a sub-band, and the number and the position of sub-carriers used for transmission in the RB are defined by network configuration or a protocol;

the first part of bits is used to indicate one Sub-RB in a Sub-band, and the size of the Sub-RB is defined by a network configuration or a protocol.

Optionally, the second bit further includes: a second portion of bits to indicate the sub-bands within the bandwidth portion, the second portion of bits including P bits, P > -0.

Optionally, in a case that the resource allocation manner is resource allocation type1, the second bit includes: a third portion of bits, wherein:

the third part of bits are used for indicating one Resource Block (RB), and the number and the position of subcarriers used for transmission in the RB are defined by a network configuration or a protocol;

the third part of bits is used to indicate a Sub-RB, and the size of the Sub-RB is defined by a network configuration or a protocol.

Optionally, in the case of a handover between resource allocation type0 and resource allocation type1, the third bit of the FDRA field is used to indicate the handover between resource allocation type0 and resource allocation type 1.

Optionally, the method further includes:

the terminal determines the time domain resources occupied by a Transport Block (TB) in the time domain according to the resource allocation granularity of the Sub-RB;

wherein, the resource allocation granularity of the Sub-RB and the corresponding relation of the time domain resource are defined by a protocol or configured by a network side.

Optionally, the TDRA field is used to implicitly indicate whether the resource allocation is a Sub-RB level.

Optionally, the TDRA domain is further configured to indicate at least one of:

the TB transmits the occupied time domain resources and the resource allocation granularity of Sub-RBs in the time domain;

wherein, the TDRA table acquired by the terminal includes: and a first column, where the first column is used to represent a time domain resource occupied by the TB in time domain transmission, and a resource allocation granularity of a Sub-RB and a corresponding relationship of the time domain resource are protocol definitions or network side configuration.

The embodiment of the invention also provides a resource allocation information indicating method, which comprises the following steps:

the network equipment sends downlink control information DCI, wherein the DCI comprises a resource allocation indication field, and the resource allocation indication field is used for indicating the allocation level of resource allocation.

Optionally, the resource allocation indication field includes: a frequency domain resource allocation FDRA domain, wherein a first bit of the FDRA domain is used for indicating the allocation level of resource allocation, and the bit length of the FDRA domain is determined according to the BWP size of a bandwidth part and the resource allocation mode; or

The resource allocation indication field includes: a time domain resource allocation, TDRA, field for indicating an allocation level of resource allocation.

Optionally, the first bit is used to explicitly or implicitly indicate whether the resource allocation is in Sub-resource block Sub-RB level.

Optionally, the method further includes:

the network equipment sends a network side message, wherein the network side message is used for indicating whether switching between Sub-RB level resource allocation and other level resource allocation is started, and the network side message comprises the following items:

a Radio Resource Control (RRC) signaling, a Media Access Control (MAC) control unit (CE) and a group common Physical Downlink Control Channel (PDCCH).

the first part of bits are bitmap, each bit in the bitmap corresponds to one RB in a sub-band, and the number and the position of sub-carriers used for transmission in the RB indicated by the bitmap are agreed by network configuration or protocol; or

the third part of bits are used for indicating one RB, and the number and the position of subcarriers used for transmission in the RB are defined by network configuration or a protocol;

Optionally, the method further includes:

the network equipment determines the time domain resources occupied by the transmission of the transmission block TB in the time domain according to the resource allocation granularity of the Sub-RB;

Optionally, the TDRA domain is further configured to indicate at least one of:

wherein, the TDRA table obtained by the network device includes: and a first column, where the first column is used to represent a time domain resource occupied by the TB in time domain transmission, and a resource allocation granularity of a Sub-RB and a corresponding relationship of the time domain resource are protocol definitions or network side configuration.

An embodiment of the present invention further provides a terminal, including: a memory, a transceiver, and a processor, wherein:

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

receiving Downlink Control Information (DCI), wherein the DCI comprises a resource allocation indication field, and the resource allocation indication field is used for indicating the allocation level of resource allocation;

and determining the allocation level of the resource allocation according to the resource allocation indication domain.

Optionally, the resource allocation indication field includes: a Frequency Domain Resource Allocation (FDRA) domain, wherein a first bit of the FDRA domain is used for indicating the allocation level of resource allocation, and the terminal determines the bit length of the FDRA domain according to the BWP size of a bandwidth part and a resource allocation mode; or

An embodiment of the present invention further provides a network device, including: a memory, a transceiver, and a processor, wherein:

and sending Downlink Control Information (DCI), wherein the DCI comprises a resource allocation indication field, and the resource allocation indication field is used for indicating the allocation level of resource allocation.

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

a receiving unit, configured to receive downlink control information DCI, where the DCI includes a resource allocation indication field, and the resource allocation indication field is used to indicate an allocation level of resource allocation;

a first determining unit, configured to determine an allocation level of resource allocation according to the resource allocation indication field.

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

a first sending unit, configured to send downlink control information DCI, where the DCI includes a resource allocation indication field, and the resource allocation indication field is used to indicate an allocation level of resource allocation.

An embodiment of the present invention further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to enable the processor to execute the method for determining resource allocation information provided in the embodiment of the present invention, or the computer program is configured to enable the processor to execute the method for indicating resource allocation information provided in the embodiment of the present invention.

In the embodiment of the invention, a terminal receives DCI, wherein the DCI comprises a resource allocation indication field, and the resource allocation indication field is used for indicating the allocation level of resource allocation; and the terminal determines the allocation level of the resource allocation according to the resource allocation indication domain. Therefore, the allocation level of the resource allocation can be dynamically indicated in the resource allocation process, and the flexibility of the resource allocation is improved.

Drawings

FIG. 1 is a schematic diagram of a network architecture in which the present invention may be implemented;

fig. 2 is a flowchart of a method for determining resource allocation information according to an embodiment of the present invention;

fig. 3 is a flowchart of a method for indicating resource allocation information according to an embodiment of the present invention;

fig. 4 is a structural diagram of a terminal according to an embodiment of the present invention;

fig. 5 is a block diagram of a network device according to an embodiment of the present invention;

fig. 6 is a block diagram of another terminal provided in an embodiment of the present invention;

fig. 7 is a block diagram of another network device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The term "and/or" in the embodiments of the present invention describes an association relationship of associated objects, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The term "plurality" in the embodiments of the present invention means two or more, and other terms are similar thereto.

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

The embodiment of the invention provides a resource allocation information determining method, an indicating method, a terminal and network equipment, and aims to solve the problem of poor flexibility of resource allocation.

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

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

Referring to fig. 1, fig. 1 is a schematic structural diagram of a network architecture to which the present invention is applicable, and as shown in fig. 1, includes a terminal 11 and a network device 12.

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

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

The network device and the terminal may each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission, and the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-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 root antenna combinations.

Referring to fig. 2, fig. 2 is a flowchart of a method for determining resource allocation information according to an embodiment of the present invention, as shown in fig. 2, including the following steps:

step 201, a terminal receives DCI, where the DCI includes a resource allocation indication field, and the resource allocation indication field is used to indicate an allocation level of resource allocation;

step 202, the terminal determines the allocation level of the resource allocation according to the resource allocation indication domain.

The resource allocation indication field may be an FDRA field or a TDRA field.

In step 201, since the resource allocation indication field is used to indicate the allocation level of the resource allocation, it is possible to indicate the allocation level of the resource allocation while indicating the resource allocation, so that no additional bits need to be added to reduce the overhead of the DCI. For example: the existing part of bits of the FDRA field defined in the protocol indicate the allocation level, and the remaining part or all of bits of the FDRA field are used for indicating specific resources at the allocation level.

The allocation level of the resource allocation may be an allocation level of frequency domain resource allocation, but is not limited to this, for example: or may be an allocation level of the time domain resource allocation.

In addition, the allocation level may include a Sub-RB level, an RB level, a Resource Block Group (RBG), a Virtual Resource Block (VRB), or a Virtual Resource Block Group (VRB Group).

In the embodiment of the invention, the allocation level of the resource allocation can be dynamically indicated in the resource allocation process through the steps, so that the flexibility of the resource allocation can be improved.

It should be noted that, in the embodiment of the present invention, since the allocation level of the resource allocation is directly indicated by the resource allocation indication field included in the DCI, the signaling structure of the DCI does not need to be changed, thereby reducing the implementation complexity. For example: the allocation level of the resource allocation is indicated by bits in the existing FDRA field.

As an optional implementation, the resource allocation indication field includes: a FDRA field, a first bit of the FDRA field to indicate an allocation level of a resource allocation.

The first bit may be one or more bits of the FDRA domain, for example: the Most Significant Bit (MSB) or the Least Significant Bit (LSB) of the FDRA field, or the second MSB or LSB of the FDRA field, etc.

In this embodiment, it can be realized that the first bit in the FDRA domain is used to indicate the allocation level of the resource allocation, and the FDRA domain is also used to indicate the frequency domain resource allocation, so as to realize the allocation level and the frequency domain resource allocation in the FDRA domain.

Optionally, the terminal determines the bit length of the FDRA domain according to the BWP size and the resource allocation manner. In this embodiment, the FDRA bit may be a bit length determined according to the BWP size and the resource allocation manner, that is, no additional bit is introduced into the FDRA domain to indicate the allocation level of the resource allocation, and when determining the FDRA domain length, the bit length of the FDRA domain is directly determined according to the BWP size and the resource allocation manner without considering whether the function of indicating the allocation level of the resource allocation is activated. For example: when determining the length of the FDRA information domain, the bit length of the FDRA domain is directly determined according to the BWP size and the resource allocation mode, regardless of whether a Sub-RB level resource allocation mode is started.

Of course, in the embodiment of the present invention, the bit length of the FDRA field is not limited to be determined by the BWP size and the resource allocation manner, for example: the bit length of the FDRA field may be agreed upon.

Optionally, the first bit is used to explicitly or implicitly indicate whether the resource allocation is in Sub-RB level.

For example: the first bit is 1bit to indicate whether the resource allocation is in Sub-RB level, if the resource allocation is indicated in Sub-RB level, that is, the allocation level is in Sub-RB level, and if the resource allocation is not indicated in Sub-RB level, the terminal may determine to allocate the resource according to a default allocation level, for example, determine to allocate the resource according to RBG, VRB Group level.

Taking the first bit as the MSB or LSB of the FDRA domain, if the MSB or LSB state is 1 or 0, it indicates to adopt Sub-RB level resource allocation; the MSB or LSB state is 0 or 1, which indicates that other levels of resource allocation are used, such as a default level of resource allocation, or a protocol-defined allocation level, or a legacy (legacy) resource allocation is used.

In the embodiment of the present invention, the Sub-RB level resource allocation may be a resource allocation granularity smaller than one RB, that is, the resource allocation granularity is Sub-RB. Certainly, the sub-RB as the resource allocation granularity is only an example, and the configuration of the resource allocation granularity is not limited in any way in the embodiment of the present invention, for example: the resource allocation granularity may be greater than 1 RB but less than one RBG.

In this embodiment, since the Sub-RB level resource allocation can be implemented, the transmission data is transmitted at the frequency domain position of the concentrated Sub-RB level, for example: and sending the uplink data channel, thereby improving the Power Spectral Density (PSD) transmitted by the terminal, and specifically, improving the PSD sent by the uplink channel in the coverage enhancement scene, thereby improving uplink coverage.

It should be noted that, since the first bit is used to indicate whether the resource allocation is in the Sub-RB level, the first bit can also be used to switch the resource allocation in the Sub-RB level and other levels, for example: the resource allocation indicated as Sub-RB level is switched to Sub-RB level and if not, to other levels.

Optionally, the method further includes:

The other level may be RBG, VRB or VRB Group.

The terminal may determine the handover according to a network side message, or the terminal may determine whether to start the handover between the Sub-RB level resource allocation and other levels of resource allocation according to the current service type, scene, and the like.

In this embodiment, since switching between Sub-RB level resource allocation and other levels of resource allocation can be started, the flexibility of resource allocation can be further improved.

RRC signaling (RRC signaling), MAC CE, PDCCH.

For example: the network device may indicate, through RRC signaling, whether the terminal starts a dynamic switching function between Sub-RB level resource allocation and other level resource allocation, and may determine the first bit according to the indication to determine which bits are used for indicating whether the terminal is Sub-RB level resource allocation. Of course, if the network device configures sub-RB level resource allocation, then the N bits of the FDRA bits are determined in a predefined manner for indicating the resource allocation level, i.e. the first bit position, e.g. MSB, LSB, second MSB, etc., is determined in a predefined manner.

Another example is: the network equipment informs the terminal FDRA domain of the N bits position for indicating the resource allocation level switching, namely the first bit position, through RRC signaling.

Another example is: and the MAC CE indicates whether to start a dynamic switching function of Sub-RB level resource allocation and other level resource allocation, and can determine the first bit according to the indication to determine which bits are used for indicating whether the Sub-RB level resource allocation is required.

Another example is: whether the dynamic switching function of Sub-RB level resource allocation and other level resource allocation is started or not is indicated through a group common PDCCH.

In addition, if the sub-RB level resource allocation is started, the N bits of the FDRA domain are determined in a predefined manner to be used for indicating the resource allocation level, for example, the MSB, the LSB or the second MSB and the like are determined as the first bit. Or, the MAC CE notifies the terminal FDRA domain of the N bits position for indicating the resource allocation level.

The aforementioned analyzing the FDRA domain according to the first bit and determining the frequency domain resource indicated by the FDRA for transmission according to the analysis result may be determining part or all of bits of the FDRA domain except the first bit as bits for indicating resource allocation, and determining the frequency domain resource indicated by the FDRA for transmission according to the bits.

Of course, when the third bit of the FDRA field is used to indicate the switching between the resource allocation type0 and the resource allocation type1, the analyzing the FDRA field according to the first bit and determining the frequency domain resource for transmission indicated by the FDRA according to the analysis result may be analyzing the FDRA field according to the first bit and the third bit and determining the frequency domain resource for transmission indicated by the FDRA according to the analysis result.

The second bit may be a part or all of the bits of the FDRA domain except the first bit. The second bit may be a frequency domain resource indicating a level of allocation indicated by the first bit for transmission.

In one embodiment, the second bit is used to indicate a Sub-RB level frequency domain resource for transmission in case the first bit indicates a Sub-RB level resource allocation.

the first part of bits are bitmaps, each bit in the bitmaps corresponds to one RB in a sub-band, and the number and the position of sub-carriers used for transmission in the RBs indicated by the bitmaps are agreed by network configuration or protocols; or

The resource allocation method may be the resource allocation type0 described above, where the terminal is configured with only the resource allocation type 0(RA type0 only).

The number and position of the subcarriers used for transmission in the RB may be, in part, the number and position of the subcarriers used for transmission in the RB, so as to determine the Sub-RBs used for transmission of the RB.

The sub-band may be a partial sub-band of the BWP or the sub-band may be the entirety of the BWP, i.e. the BWP is not further divided into sub-bands.

Where, when P is 0, it indicates that the second partial bit is not included, and BWP is not further divided into subbands.

For example: for a scene of RA type0 only:

when MSB or LSB of the FDRA domain indicates that the current FDRA domain is used for Sub-RB level resource allocation, assuming that the FDRA domain determined according to BWP contains L bits, the remaining L-1bits except MSB or LSB are used for indicating Sub-RB level resource allocation, wherein:

in the L-1bits, P bits is used to indicate a subband in the BWP, where P is an integer greater than or equal to 0, and when P is 0, it indicates that the BWP is not further divided into subbands;

the remaining L-1-P bits are used to indicate the sub-RB level resource allocation in the subband, which may specifically be:

the L-1-P bit is a bitmap, where each bit corresponds to an RB in a subband, and the corresponding data channel occupies a portion of subcarriers (subcarriers) in one or more RBs determined by the bitmap. The number and the position of subcarriers used for data channel transmission in the RBs are configured through RRC signaling or determined in a protocol pre-defined mode;

alternatively, the L-1-P bits indicate 1 to 2^(L-1-P)Each value corresponds to an RB in a subband, and the number and location of subcarriers used for data channel transmission in the RB are configured by RRC signaling or determined by a protocol-predefined manner

Alternatively, the L-1-P bits indicate 1 to 2^(L-1-P)Each value corresponds to one sub-RB in the sub-band, and the size of the sub-RB is configured through RRC signaling or determined through a protocol predefined manner.

In this embodiment, flexible indication of allocation resources can be achieved.

The resource allocation type1 may be a scenario in which the terminal is configured with only resource allocation type 1(RA type1 only).

The one RB or one Sub-RB may be an RB or Sub-RB in active BWP, or may be an RB or Sub-RB in a Sub-band, which may refer to the Sub-band in resource allocation type0, and is not described herein.

In the case that the third part of bits is used to indicate one RB or Sub-RB, the terminal may determine a continuous RB or Sub-RB in resource allocation type1 according to the RB or Sub-RB, and the determination may be defined in the protocol as a manner of determining continuous resources in resource allocation type1, which is not described in detail herein.

For example: for the RA type 1only scenario, when the MSB or LSB of the FDRA field indicates that the current FDRA field is used for Sub-RB level resource allocation, assuming that the FDRA field determined according to the BWP contains L bits, where the remaining L-1bits in the FDRA field excluding the MSB or LSB are used to indicate that those Sub-RBs in the BWP are activated for data transmission, there may be the following ways:

the L-1bits mentioned above indicate 1 to 2^(L-1)Each value corresponds to an RB that activates BWP or a subband, and the number and location of subcarriers used for data channel transmission in the RB are configured by RRC signaling or determined by a protocol predefined manner; or

The L-1bit indicates 1 to 2^(L-1)Each value corresponds to one sub-RB in the active BWP or subband, and the size of the sub-RB is configured by RRC signaling or determined by a protocol predefined manner.

It should be noted that, in this embodiment of the present invention, the position of the second bit is determined by one of the following items:

RRC signaling, MAC CE, group public PDCCH and protocol definition;

the position of the first bit is determined by one of:

RRC signaling, MAC CE, group common PDCCH, protocol definition.

Optionally, in a case that the first bit indicates resource allocation of an RBG level, the third bit is used for indicating an RBG for transmission; or

In the case where the first bit indicates a VRB or a VRB group, the third bit indicates a VRB or a VRB group for transmission.

For example: for the RA type 0only scenario, when the MSB or LSB of the FDRA field indicates that the current FDRA field is used for resource allocation at the RBG level, assuming that the FDRA field determined according to the BWP contains L bits, the remaining L-1bits excluding the MSB or LSB are used for indicating resource allocation at the RBG level, where:

MSB or LSB in the L-1bits indicates two continuous RBGs, wherein the two continuous RBGs can be two RBGs beginning from the lowest RB index in the BWP or two continuous RBGs corresponding to the highest RB index; or

The other bits except the MSB or LSB among the L-1bits have a one-to-one mapping relationship with the RBG.

For example: for the RA type 1only scene, when the MSB or LSB of the FDRA field indicates that the current FDRA field is used for resource allocation at the VRB or VRB group level, it is assumed that the FDRA field determined according to the BWP contains L bits, where the L-1bits except the MSB or LSB in the FDRA field are used to indicate resource allocation information.

Further, in a case that the first bit indicates a VRB or a VRB group and switching between Sub-RB level resource allocation and other level resource allocation is not started, the resource allocation granularity indicated by the third bit is a first granularity;

under the condition that the first bit indicates a VRB or a VRB group and the switching between the Sub-RB level resource allocation and other levels of resource allocation is started, the resource allocation granularity indicated by the third bit is a second granularity;

wherein the first granularity is less than the second granularity.

The first granularity may be smaller than the second granularity, and the second granularity may be 2 times or other times the first granularity.

For example: the resource allocation granularity is enlarged by a scaling parameter 2 to 2 times of the indication granularity when the dynamic switching function of Sub-RB level resource allocation and other level resource allocation is not turned on, for example, the resource allocation granularity is 1 VRB when not turned on, and the resource allocation granularity is two consecutive VRBs after turning on.

In this embodiment, the resource allocation granularity is different in different cases, so that the flexibility of resource allocation is further improved.

The third bit may be one or more bits, for example: MSB or LSB of FDRA domain.

For the dynamic switching scenario of RA type0 and RA type1, assuming that the length of the FDRA information field is L, the following may be included:

adopting the second MSB or LSB to indicate that the granularity of the current frequency domain resource scheduling is Sub-RB level or other levels;

when the current frequency domain resource allocation type is RA type0, analyzing and allocating resources for the residual L-2bits except the first and second MSBs (or MSBs and LSBs), namely the residual L-2bits except the first bit and the third bit, according to the scene of RA type0 only;

when the current frequency domain resource allocation type is RA type1, for the remaining L-2bits except the first and second MSBs (or MSB and LSB), i.e., the remaining L-2bits except the first bit and the third bit, parsing and resource allocation are performed according to the scenario of RA type1 only.

Optionally, the method further includes:

the terminal determines time domain resources occupied by TB transmission in the time domain according to the resource allocation granularity of the Sub-RB;

The time domain resource occupied by the TB in time domain transmission may be a number of consecutive time domain resources occupied by the TB in time domain transmission, for example: the number of consecutive slots (slots) occupied by the TB in time domain transmission.

In the embodiment, the time domain resources occupied by the transmission of the TB in the time domain can be determined according to the resource allocation granularity of the Sub-RB, so that the time domain resources occupied by the transmission of the TB in the time domain do not need to be additionally indicated, and the signaling overhead is saved.

For example: when the frequency domain resource allocation granularity is Sub-RB level, indicating the number of continuous slots occupied by transmission of one TB in the time domain, wherein:

the corresponding relation between the sub-RB resource granularity and the time domain expansion parameter (namely, one TB needs to be transmitted on N continuous slots) is determined in a protocol pre-defined mode;

or, the corresponding relationship between the sub-RB resource granularity and the time domain spreading parameter (that is, one TB needs to be transmitted in N consecutive slots) is explicitly configured in an RRC signaling manner.

As an optional implementation, the resource allocation indication field includes: a TDRA field to indicate an allocation level of resource allocation.

The allocation level of the TDRA field for indicating resource allocation may be an allocation level implicitly indicating resource allocation, or may be explicitly indicated.

In this embodiment, since the allocation level of the resource allocation is indicated by the TDRA field, the format of the DCI does not need to be changed, and additional bits do not need to be introduced to reduce the overhead of the DCI.

The implicit indication of whether the resource allocation is at Sub-RB level may be, when the TDRA domain indicates time domain resource allocation, also implicitly indicate whether the resource allocation is at Sub-RB level, for example: some of the time domain resource information is indicated as Sub-RB level resource allocation, and other of the time domain resource information is indicated as non-Sub-RB level resource allocation.

Since the TDRA domain is used to implicitly indicate whether the resource allocation is at Sub-RB level, the overhead of the TDRA domain is reduced.

Optionally, the TDRA domain is further configured to indicate at least one of:

Wherein the resource allocation granularity of the Sub-RB is an implicit indication of the TDRA field.

The first column may be a column at any position in the TDRA table, for example: the above-mentioned TDRA table further comprises a second column, a third column, a fourth column, etc., which may be used to indicate time domain location information.

In addition, the time domain resource occupied by the TB in time domain transmission may be the time domain resource number occupied by the TB in time domain, such as the time slot number.

In this embodiment, the first column indicates the time domain resource occupied by the transmission of the TB in the time domain and the resource allocation granularity of the Sub-RB at the same time, so that the complexity of the TDRA table is reduced, and the overhead of the TDRA domain can be saved.

For example: the terminal determines implicitly whether the current frequency domain resource allocation is Sub-RB level resource allocation through a TDRA indication domain, and introduces a new column in a TDRA table, wherein the column is used for indicating whether to perform time domain expansion on TB transmission resources, and the meaning of the time domain expansion can be that one TB is transmitted on a plurality of slots continuously;

and if the TDRA indication domain indicates that the data transmission needs time domain expansion, determining that the frequency domain resource allocation adopts sub-RB level resource allocation granularity. For example: the corresponding relation between the resource allocation granularity and the time domain expansion parameter is determined by the protocol predefining or the RRC signaling explicit configuration mode.

In addition, if the sub-RB level resource allocation granularity is adopted, all bits in the FDRA field are used to indicate sub-RB level resource allocation, and the specific resource allocation manner is described in the foregoing embodiments and is not described herein again.

Referring to fig. 3, fig. 3 is a flowchart of a method for indicating resource allocation information according to an embodiment of the present invention, as shown in fig. 3, including the following steps:

step 301, the network device sends a downlink control information DCI, where the DCI includes a resource allocation indication field, and the resource allocation indication field is used to indicate an allocation level of resource allocation.

Optionally, the method further includes:

Optionally, the TDRA domain is further configured to indicate at least one of:

It should be noted that, this embodiment is used as an implementation of a network device corresponding to the embodiment shown in fig. 2, and specific implementation of this embodiment may refer to the relevant description of the embodiment shown in fig. 2, so that, in order to avoid repeated descriptions, this embodiment is not described again, and the same beneficial effects may also be achieved.

The method provided by the embodiments of the present invention is illustrated by the following examples:

example 1:

it is assumed that terminal 1 needs uplink coverage enhancement in some scenarios. In a cell center scenario, the uplink coverage of terminal 1 does not need to be enhanced. The network device schedules the uplink service of the terminal E1 on a more concentrated frequency domain resource location, thereby increasing the PSD, and further enhancing the coverage of uplink transmission. In this embodiment, uplink data is scheduled on more concentrated frequency domain resources for transmission in a sub-RB resource allocation manner. The sub-RB level frequency domain resource allocation and the other level frequency domain resource allocation can be dynamically switched in consideration of different scheduling requirements of NR terminals, difference of coverage scenes and the like. This embodiment may include the following steps

Step 1: the network device notifies the terminal of the start of the dynamic switching function of sub-RB level frequency domain resource allocation and normal (normal) frequency domain resource allocation through one of the following ways. The terminal determines how to parse the FDRA field carried in the DCI according to any of the following methods.

The network equipment indicates whether the terminal starts a dynamic switching function of Sub-RB level resource allocation and other level resource allocation through RRC signaling, and determines which bit in the FDRA bits is used for indicating the resource allocation level;

if the network equipment configures sub-RB level resource allocation, determining that N bits in FDRA bits are used for indicating resource allocation levels, such as MSB, LSB, second MSB and the like, in a predefined mode;

or the network device informs the terminal of the position of N bits used for indicating the resource allocation level in the FDRA bits through RRC signaling, for example, the 1 st to 3 rd bits in the FDRA domain are used for switching the resource allocation level;

or, whether a dynamic switching function of Sub-RB level resource allocation and other level resource allocation is started is indicated through the MAC CE, and therefore, which bit in the FDRA bit is used for indicating the resource allocation level is determined;

if the sub-RB level resource allocation is started, determining that N bits in FDRA bits are used for indicating resource allocation levels, such as MSB, LSB, second MSB and the like, in a predefined mode;

or, the MAC CE notifies the terminal of the N bits position in the FDRA bit for indicating the resource allocation level. For example, bits 1 to 3 in the FDRA domain are used for frequency domain allocation level switching;

or, whether the dynamic switching function of Sub-RB level resource allocation and other level resource allocation is started or not is indicated through a group common PDCCH.

Step 2: still according to the active BWP size, VRB group size, DCI size alignment (size alignment) operation and other related mechanisms, determine the bit length contained in the FDRA domain. That is, the network device and the terminal side do not consider the influence of the resource allocation level dynamic handover indication when determining the FDRA domain length.

When the length of the FDRA information domain is determined, whether the Sub-RB level resource allocation mode is started or not is not considered, the length is determined according to the mode, namely, an additional indication bit is not introduced to indicate whether the current resource allocation mode is the Sub-RB level or not

And step 3: and the terminal analyzes the FDRA domain in the DCI according to the specific bit used for indicating the resource allocation level in the FDRA bits, and determines the frequency domain resource allocation condition of the data channel according to the FDRA domain.

In this embodiment, it is assumed that the frequency domain resource allocation type is RA type0, i.e. a continuous or discontinuous RBG occupied by the data channel is indicated by means of bitmap. Assuming that the current Active BWP contains 72 RBs and the starting RB index of the BWP is #0, one RBG contains 4 consecutive RBs. Accordingly, the FDRA field contains 18bits, i.e. a bitmap with a length of 18bits indicates which of the 18 RBGs in the BWP are used for data transmission.

When the resource allocation level dynamic switching function is determined to be started according to any method in the step1, part of the 18bits included in the FDRA are used for dynamic switching of the resource allocation level. The terminal can determine the specific position of the bit used by the resource allocation level dynamic switching indication in the FDRA domain according to any method in the step 1. In this embodiment, it is assumed that MSB in the FDRA domain is used for the resource allocation level dynamic switching indication, and the remaining 17bits are used for sub-RB level resource allocation. In this embodiment, the dynamic switching of the resource allocation level indicating field is 0, which represents that the frequency domain resources are allocated according to other levels; 1 represents allocation of frequency domain resources in sub-RB level.

And if the resource allocation level dynamic switching indication domain indicates that sub-RB level frequency domain resource allocation is adopted currently, 3bits of the 17bits are used for indicating the sub-band in the BWP. Correspondingly, the corresponding relationship between the indication domain and the sub-band can be shown in the following table 1:

table 1:

sub-band indication	RB range included in corresponding sub-band
		000	RB#0-8
001	RB#9-17
		010	RB#18-26
011	RB#27-35
		100	RB#36-44
101	RB#45-53
		110	RB#54-62
111	RB#63-71

The remaining 14bits are used to indicate the RB position where the sub-RB resource in the corresponding subband is located. The 14bits are bitmaps, and each bit in the bitmaps corresponds to an RB in the subband one to one. In this embodiment, the first 9bits in the bitmap and the 9 RBs in each subband have a one-to-one correspondence, and the remaining 5bits are reserved bits (reserved bits). For example, if the network device instructs the terminal to transmit the uplink traffic on part of subcarriers on RB #45 in BWP, the bit in the FDRA domain is 110110000000000000. Within RB No. 45 in BWP, the actual occupied subcarrier position can be determined as follows:

and informing the terminal of the number and the position of SCs occupied by the sub-RB level resource allocation in each RB through RRC signaling configuration. In the present embodiment, assume that #0- #5 subcarriers are occupied within each RB.

Or determining the number and the position of SCs occupied by the sub-RB level resource allocation in each RB by a protocol predefined mode.

Of course, this embodiment does not exclude any other arbitrary configuration or predefined combination.

If the resource allocation level dynamic switching indication field indicates that the frequency domain resource allocation of normal is currently adopted, the remaining 17bits excluding the MSB are used to indicate the resource allocation of the RBG level within the BWP. The 17bits is bitmap, that is, each bit and the RBG have a one-to-one correspondence relationship. In this embodiment, since there are 18 RBGs in the BWP and the bitmap length for indicating the RBGs is 17bits, one bit of the bitmap needs to indicate two consecutive RBGs. In this embodiment, it is assumed that the first bit of the 17bits indicates two consecutive RBGs, and the remaining bits each indicate one RBG.

Example 2:

as described in embodiment 1, step1 and step 2 in the method of this embodiment are the same as those in the embodiment, and are not described herein again. Only step 3 is set forth to provide a better understanding of the method provided by the embodiments of the present invention.

And step 3: and the terminal analyzes the FDRA domain in the DCI according to the specific bit used for indicating the resource allocation level in the FDRA bits, and determines the frequency domain resource allocation condition of the data channel according to the FDRA domain. In this embodiment, it is assumed that the frequency domain resource allocation type is RA type0, i.e. consecutive or non-consecutive RBGs occupied by the data channel are indicated by way of bitmap. Assuming that the current Active BWP contains 72 RBs and the starting RB index of the BWP is #0, one RBG contains 4 consecutive RBs. Accordingly, the FDRA field contains 18bits, i.e. a bitmap with a length of 18bits indicates which of the 18 RBGs in the BWP are used for data transmission.

If the resource allocation level dynamic switching indication field indicates that sub-RB level frequency domain resource allocation is currently adopted, the 17bits are used for indicating RB numbers in the bandwidth. In this embodiment, since the total number of RBs in BWP is 72, 7bits are required for indication. The remaining bits are reserved bits and do not participate in specific frequency domain resource allocation. Specifically, the correspondence between the 7-bit information for indicating the RB index in the BWP and the RB index may be determined by table 2:

table 2:

at this time, the structure of the 18bits FDRA domain is shown in Table 3:

table 3:

specifically, assuming that the RB occupied by the network device scheduling the Sub-RB transmission is the 5 th RB in the BWP, the FDRA field at this time is 100001010000000000.

In RB No. 5 in BWP, the actual occupied subcarrier position can be determined as follows:

and informing the terminal of the number and the position of sub-carrier occupied by sub-RB level resource allocation in each RB through RRC signaling configuration. In the present embodiment, assume that #0- #5 subcarriers are occupied within each RB.

Or, the number and the position of the sub-RB level resource allocation occupied in each RB are determined in a protocol predefined mode.

Example 3:

the method as described in embodiments 1 and 2, wherein step1 and step 2 are the same as in embodiment 1, and are not repeated herein. Only step 3 is set forth to provide a better understanding of the method provided by the embodiments of the present invention.

When the resource allocation level dynamic switching function is determined to be started according to any method in the step1, part of the 18bits included in the FDRA are used for dynamic switching of the resource allocation level. The terminal may determine the specific location of the bit used by the resource allocation level dynamic switching indication in the FDRA domain according to any method in step 1. In this embodiment, it is assumed that MSB in the FDRA domain is used for the resource allocation level dynamic switching indication, and the remaining 17bits are used for sub-RB level resource allocation. In this embodiment, the resource allocation level dynamic switching indication field is 0, which represents that the frequency domain resource is allocated according to the legacy manner; 1 represents allocation of frequency domain resources in sub-RB level.

And if the resource allocation level dynamic switching indication domain indicates that the frequency domain resource allocation at the sub-RB level is adopted currently, the 17bits are used for indicating the sub-RB number in the bandwidth. I.e. all resources within BWP are renumbered in the frequency domain according to sub-RBs. The Sub-RB granularity may be configured by RRC signaling or determined by a protocol-predefined manner. In this embodiment, assuming that the granularity of the Sub-RB configured by the network device through RRC signaling is 3 consecutive subcarriers, the number of the Sub-RB is Sub-RB #1-Sub-RB #287, and the 288 Sub-RBs need to indicate the specific Sub-RB index for carrying uplink traffic data transmission through 9 bits. The remaining 8bits of the 17bits are reserved bits. Specifically, the correspondence between the 9-bit information for indicating the RB index in the BWP and the RB index may be determined by table 4:

table 4:

in this case, the structure of the 18bits FDRA domain can be as shown in Table 5:

table 5:

specifically, assuming that the Sub-RB occupied by the Sub-RB transmission scheduled by the network device is the 287 th Sub-RB in the BWP, the FDRA field at this time is 110001111100000000.

Example 4:

as described in embodiments 1-3, step1 and step 2 in the method of this embodiment are the same as those in the above embodiments, and are not described herein again. Only step 3 is set forth to provide a better understanding of the method provided by embodiments of the present invention.

And step 3: and the terminal analyzes the FDRA domain in the DCI according to the specific bit used for indicating the resource allocation level in the FDRA bits, and determines the frequency domain resource allocation condition of the data channel according to the FDRA domain. In this embodiment, it is assumed that the frequency domain resource allocation type is RA type1, i.e. consecutive VRBs occupied by the data channel are indicated by means of SLIV. Suppose that the current Active BWP contains 72 RBs, and the starting RB index of the BWP is #0 and the granularity of the frequency-domain resource allocation is VRB. In this embodiment, no limitation is made on the mapping relationship between the VRBs and the PRBs. Accordingly, the FDRA field contains 11bits and indicates one or several consecutive VRBs for data transmission within the BWP through the 11 bits.

And when the resource allocation level dynamic switching function is determined to be started according to any method in the step1, part of the 11bits contained in the FDRA is used for dynamically switching the resource allocation level. The terminal may determine the specific location of the bit used by the resource allocation level dynamic switching indication in the FDRA domain according to any method in step 1. In this embodiment, it is assumed that the MSB in the FDRA domain is used for the resource allocation level dynamic switching indication, and the remaining 10bits are used for sub-RB level resource allocation. In this embodiment, the resource allocation level dynamic switching indication field is 0, which represents that the frequency domain resource is allocated according to the legacy manner; 1 represents allocation of frequency domain resources in sub-RB level.

If the resource allocation level dynamic switching indication field indicates that sub-RB level frequency domain resource allocation is currently adopted, the 10bits are used for indicating RB numbers in the bandwidth. In this embodiment, since the total number of RBs in BWP is 72, 7bits are required for indication. The remaining bits are reserved bits and do not participate in specific frequency domain resource allocation. Specifically, the correspondence between the 7-bit information for indicating the RB index in the BWP and the RB index may be determined by table 6:

table 6:

RB index indication	RB index
		0000000	RB#0
0000001	RB#1
		0000010	RB#2
0000011	RB#3
		0000100	RB#4
0000101	RB#5
		…	…

in this case, the structure of the 18bits FDRA domain can be as shown in Table 7:

table 7:

specifically, assuming that the RB occupied by the Sub-RB transmission scheduled by the network device is the 5 th RB in the BWP, the FDRA field at this time is 10000101000.

If the resource allocation level dynamic switching indication field indicates that the frequency domain resource allocation of normal is currently adopted, the remaining 10bits excluding the MSB are used to indicate the VRB level resource allocation within the BWP. The 10bits indicates one SLIV value, and each SLIV value corresponds to one or more VRB groups. In this embodiment, since the MSB in the 11bits FDRA is used for indication, the remaining resource granularity indicated by 10bits that can be used for frequency domain resource allocation needs to be scaled according to 2, that is, the minimum granularity indicated at this time is 2 VRBs, instead of 1 VRB.

Example 5:

as described in embodiments 1-3, step1 and step 2 in the method of this embodiment are the same as those in the above embodiments, and are not described herein again. Only step 3 is set forth to provide a better understanding of the method provided by the embodiments of the present invention.

And step 3: and the terminal determines how to analyze the FDRA domain in the DCI according to the specific bit which is used for indicating the resource allocation level in the FDRA bits, and determines the frequency domain resource allocation condition of the data channel according to the FDRA domain. In this embodiment, it is assumed that the frequency domain resource allocation type is RA type1, i.e. consecutive VRBs occupied by the data channel are indicated by means of SLIV. Suppose that the current Active BWP contains 72 RBs, and the starting RB index of the BWP is #0 and the granularity of the frequency-domain resource allocation is VRB. The mapping relationship between VRBs and PRBs is not limited in this embodiment. Accordingly, the FDRA field contains 11bits and indicates one or several consecutive VRBs for data transmission within the BWP through the 11 bits.

When the resource allocation level dynamic switching function is determined to be started according to any method in step1, part of the 11bits contained in the FDRA are used for dynamic switching of the resource allocation level. The terminal may determine the specific location of the bit used by the resource allocation level dynamic switching indication in the FDRA domain according to any method in step 1. In this embodiment, it is assumed that the MSB in the FDRA domain is used for the resource allocation level dynamic switching indication, and the remaining 10bits are used for sub-RB level resource allocation. In this embodiment, the resource allocation level dynamic switching indication field is 0, which represents that the frequency domain resource is allocated according to the legacy manner; 1 represents allocation of frequency domain resources in sub-RB level.

And if the resource allocation level dynamic switching indication domain indicates that Sub-RB level frequency domain resource allocation is adopted currently, the 10bits are used for indicating the Sub-RB number in the bandwidth. I.e. all resources within BWP are renumbered in the frequency domain according to sub-RBs. The Sub-RB granularity may be configured by RRC signaling or determined by a protocol-predefined manner. In this embodiment, assuming that the granularity of the Sub-RB configured by the network device through RRC signaling is 3 consecutive subcarriers, the number of the Sub-RB is Sub-RB #1-Sub-RB #287 in the BWP, and the 288 Sub-RBs need to indicate the specific Sub-RB index for carrying uplink service data transmission through 9 bits. The remaining 1bit of the 10bits is reserved bits. Specifically, the correspondence between the 9-bit information for indicating the RB index in the BWP and the RB index may be determined by table 8:

table 8:

RB index indication	RB index
		000000000	Sub-RB#0
000000001	Sub-RB#1
		000000010	Sub-RB#2
000000011	Sub-RB#3
		000000100	Sub-RB#4
000000101	Sub-RB#5
		…	…
100011111	Sub-RB#287
		100100000-111111111	Reserved

in this case, the structure of the 11bits FDRA domain can be shown in Table 9:

table 9:

specifically, assuming that the Sub-RB occupied by the Sub-RB transmission scheduled by the network device is the 287 th Sub-RB in the BWP, the FDRA field at this time is 11000111110.

Example 6:

In the present embodiment in step 3, it is assumed that the frequency domain resource allocation type can be dynamically switched between RA type0 and RA type 1. Assuming that the current Active BWP contains 72 RBs, the number of bits contained in the FDRA field is 1+ max (RA type0, RA type1) ═ 1+ max (18,11) ═ 19bits at this time. The patent does not set any limit to the mapping relationship between the VRBs and the PRBs. Accordingly, the MSB in the FDRA domain is used to indicate the current RA type, i.e., the frequency domain resource allocation is made using type0 or type 1.

After determining that the resource allocation level dynamic switching function is started according to any method in step1, a part of bits, except for the MSB, of the 19bits contained in the FDRA is used for dynamic switching of the resource allocation level. The terminal may determine the specific location of the bit used by the resource allocation level dynamic switching indication in the FDRA domain according to any method in step 1. In this embodiment, it is assumed that the second bit in the FDRA domain is used for the resource allocation level dynamic switching indication, and the remaining 18bits are used for the sub-RB level resource allocation. In this embodiment, the resource allocation level dynamic switching indication field is 0, which represents that the frequency domain resource is allocated according to the legacy manner; 1 represents allocation of frequency domain resources in sub-RB level.

If the dynamic resource allocation level switching indication field indicates that sub-RB-level frequency domain resource allocation is currently employed, all other bits except the resource allocation type indication bit and the resource allocation level indication bit are analyzed and resource allocation is determined as described in embodiments 1 to 5. Specifically, if the current resource allocation type is RA type0, the method is performed as described in embodiments 1 to 3; if the current resource allocation type is RA type1, it is performed as described in embodiments 4-5.

If the dynamic switching indication field of the resource allocation level indicates that the normal frequency domain resource allocation is currently adopted, then for all other bits except the resource allocation type indication bit, the method described in embodiments 1 to 5 is performed to analyze and determine the resource allocation. Specifically, if the current resource allocation type is RA type0, the method is performed as described in embodiments 1-3; if the current resource allocation type is RA type1, it is performed as described in embodiments 4-5.

Example 7:

as described in embodiments 1 to 6, for the frequency domain resource allocation method as described above, when the granularity of the frequency domain resource allocation is Sub-RB level, the number of consecutive slots occupied by transmission of one TB in the time domain is indicated at the same time. When the Sub-RB resource granularity allocation is adopted, the extension in the time domain can be determined as follows:

the corresponding relation between the sub-RB resource granularity and the time domain expansion parameter (namely, one TB needs to be transmitted on N continuous slots) is determined in a protocol predefined mode;

For example, suppose that Sub-RB resource granularity is determined by any method in embodiments 1 to 6, and the extension parameter in the time domain is determined according to the resource granularity and the correspondence predefined by the protocol. For example: the table shown in table 10 below is a specific example:

table 10:

of course, any other arbitrary combination between Sub-RBs and time domain extension parameters is not excluded in this embodiment.

Or, the Sub-RB resource granularity is determined by any method in embodiments 1 to 6, and the time domain expansion parameter corresponding to each Sub-RB resource granularity is determined by means of an RRC parameter. For example, one specific example is shown in table 11 below:

table 11:

of course, this embodiment does not exclude any other arbitrary combination between Sub-RBs configured by RRC signaling and time domain extension parameters.

Example 8:

and the network equipment informs the terminal whether the current frequency domain resource allocation is the Sub-RB level resource allocation or not in an implicit mode. The terminal also determines whether the current frequency domain resource allocation is a Sub-RB level resource allocation according to a specific rule or mapping relationship.

In this embodiment, the network device and the terminal implicitly determine whether the current frequency domain resource allocation is a Sub-RB level resource allocation through the TDRA indication field. Specifically, a new 1 column is introduced in the current TDRA table to indicate whether to extend the time domain resource of TB transmission. The meaning of the time domain spreading is that one TB is transmitted on a plurality of slots in succession. As a specific example, the time domain expansion parameter that may be indicated by the column may be 1, 2, 4, 8, etc., and is configured by RRC signaling. If the time domain extension parameter is 1, it indicates that the transmission of the TB must be completed within one slot. If the time domain extension parameter is 2, it means that the transmission of the TB occupies 2 slots in the time domain, and so on.

Further, the time domain expansion parameters and the sub-RB level resource allocation have a one-to-one correspondence relationship. For example, if the time domain extension parameter is 1, it indicates that the frequency domain resource allocation is performed in a legacy manner, that is, the resource allocation granularity is RBG or VRB, or VRB group. If the time domain expansion parameter is 2, the frequency domain resource allocation is performed in a sub-RB manner, and the frequency domain resource allocation granularity is N1 SCs; if the time domain expansion parameter is 4, the frequency domain resource allocation is performed in a sub-RB manner, and the frequency domain resource allocation granularity is N2 subcarriers; if the time domain expansion parameter is 8, the frequency domain resource allocation is performed in a sub-RB manner, and the frequency domain resource allocation granularity is N3 subcarriers, and so on. The embodiment does not limit the value and the configuration of N1/N2/N3.

An example of a new TDRA table is shown in table 12 below:

table 12:

it should be noted that the specific contents of S, L, K2 and Repetition (Repetition) corresponding columns are not shown in this embodiment, and this embodiment is not limited thereto.

In the above table, it is assumed that the TDRA field has 4bits, and the time domain expansion parameters in line 2/3/4 are 2/4/8, respectively, when the TDRA field indicates 0000, the resource allocation granularity in the frequency domain is represented as a legacy manner, i.e., RBG, VRB, or VRB group. When the TDRA indication field is 0010, the resource allocation granularity of the frequency domain is represented as a sub-RB mode, and the specific granularity is determined by RRC signaling. All bits in the FDRA domain are used to indicate the resource allocation of the sub-RB, as in any of embodiments 1-7.

In the embodiment of the invention, the method for dynamically switching the sub-RB level frequency domain resource allocation and other level frequency domain resource allocation can be provided, various coverage scenes can be met, and additional limitation on data scheduling can be avoided.

Referring to fig. 4, fig. 4 is a block diagram of a terminal according to an embodiment of the present invention, as shown in fig. 4, including a memory 420, a transceiver 400, and a processor 410:

a memory 420 for storing a computer program; a transceiver 400 for transceiving data under the control of the processor 410; a processor 410 for reading the computer program in the memory 420 and performing the following operations:

receiving DCI, wherein the DCI comprises a resource allocation indication field, and the resource allocation indication field is used for indicating the allocation level of resource allocation;

Where in fig. 4, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 410 and various circuits of memory represented by memory 420 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 400 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface 430 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 400 in performing operations.

Alternatively, the processor 410 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also have a multi-core architecture.

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

Optionally, the processor 410 is further configured to read the computer program in the memory 420 and perform the following operations:

it is determined whether to initiate a handover of the Sub-RB level resource allocation with other levels of resource allocation.

Optionally, the determining whether to start switching between Sub-RB level resource allocation and other levels of resource allocation includes:

determining whether to start switching between Sub-RB level resource allocation and other level resource allocation through a received network side message, wherein the network side message comprises one of the following items:

the third part of bits are used for indicating one Resource Block (RB), and the number and the position of subcarriers used for transmission in the RB are defined by network configuration or a protocol;

determining time domain resources occupied by transmission of a transmission block TB in a time domain according to the resource allocation granularity of the Sub-RB;

Optionally, the TDRA domain is further configured to indicate at least one of:

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

Referring to fig. 5, fig. 5 is a block diagram of a network device according to an embodiment of the present invention, as shown in fig. 5, including a memory 520, a transceiver 500, and a processor 510:

a memory 520 for storing a computer program; a transceiver 500 for transceiving data under the control of the processor 510; a processor 510 for reading the computer program in the memory 520 and performing the following operations:

and sending DCI, wherein the DCI comprises a resource allocation indication field, and the resource allocation indication field is used for indicating the allocation level of the resource allocation.

Wherein in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 510, and various circuits, represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 500 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface 530 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

Alternatively, the processor 510 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also have a multi-core architecture.

Optionally, the processor 510 is further configured to read the computer program in the memory 520 and perform the following operations:

sending a network side message, wherein the network side message is used for indicating whether switching between Sub-RB level resource allocation and other level resource allocation is started, and the network side message comprises one of the following items:

Optionally, the TDRA domain is further configured to indicate at least one of:

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

Referring to fig. 6, fig. 6 is a structural diagram of another terminal according to an embodiment of the present invention, and as shown in fig. 6, a terminal 600 includes:

a receiving unit 601, configured to receive downlink control information DCI, where the DCI includes a resource allocation indication field, and the resource allocation indication field is used to indicate an allocation level of resource allocation;

a first determining unit 602, configured to determine an allocation level of resource allocation according to the resource allocation indication field.

Optionally, the terminal further includes:

a second determining unit, configured to determine whether to start a handover of the Sub-RB level resource allocation with other levels of resource allocation.

Optionally, the terminal further includes:

a third determining unit, configured to determine, according to the resource allocation granularity of the Sub-RB, a time domain resource occupied by the transmission of the transport block TB in the time domain;

Optionally, the TDRA domain is further configured to indicate at least one of:

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

a first sending unit 701, configured to send downlink control information DCI, where the DCI includes a resource allocation indication field, and the resource allocation indication field is used to indicate an allocation level of resource allocation.

Optionally, the network device further includes:

a second sending unit, configured to send a network-side message, where the network-side message is used to indicate whether to start switching between Sub-RB-level resource allocation and other levels of resource allocation, and the network-side message includes one of the following:

Optionally, the network device further includes:

a determining unit, configured to determine, according to the resource allocation granularity of the Sub-RB, a time domain resource occupied by the transmission of the transport block TB in the time domain;

Optionally, the TDRA domain is further configured to indicate at least one of:

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

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

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

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

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

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

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

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

Claims

1. A method for determining resource allocation information, comprising:

2. The method of claim 1, wherein the resource allocation indication field comprises: a Frequency Domain Resource Allocation (FDRA) domain, wherein a first bit of the FDRA domain is used for indicating the allocation level of resource allocation, and the terminal determines the bit length of the FDRA domain according to the BWP size of a bandwidth part and a resource allocation mode; or

3. The method of claim 2, wherein the first bit is used to indicate explicitly or implicitly whether a Sub-resource block Sub-RB level resource allocation is available.

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

5. The method of claim 4, wherein the terminal determining whether to initiate a handover of Sub-RB level resource allocations with other levels of resource allocations comprises:

6. The method of claim 3, wherein the terminal parses the FDRA field according to the first bit and determines frequency domain resources indicated by the FDRA for transmission according to a result of the parsing.

7. The method of claim 2, wherein a second bit of the FDRA domain is used to indicate frequency domain resources for transmission.

8. The method of claim 7, wherein the second bit is for indicating a Sub-RB level frequency domain resource for transmission where the first bit indicates a Sub-RB level resource allocation.

9. The method of claim 8, wherein the second bit comprises, in case that the resource allocation manner is a resource allocation type 0: a first portion of bits, wherein:

10. The method of claim 9, wherein the second bit further comprises: a second portion of bits to indicate the sub-bands within the bandwidth portion, the second portion of bits including P bits, P > -0.

11. The method of claim 8, wherein the second bit comprises, in case that the resource allocation manner is a resource allocation type 1: a third portion of bits, wherein:

12. The method according to any of claims 2 to 11, wherein in case of resource allocation type0 and resource allocation type1 handover, the third bit of the FDRA field is used to indicate the handover of resource allocation type0 and resource allocation type 1.

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

the terminal determines the time domain resources occupied by the transmission of the transmission block TB in the time domain according to the resource allocation granularity of the Sub-RB;

14. The method of claim 2, wherein the TDRA field is used to implicitly indicate whether or not it is a Sub-RB level resource allocation.

15. The method of claim 14, wherein the TDRA domain is further for indicating at least one of:

16. A method for indicating resource allocation information, comprising:

17. The method of claim 16, wherein the resource allocation indication field comprises: a frequency domain resource allocation FDRA domain, wherein a first bit of the FDRA domain is used for indicating the allocation level of resource allocation, and the bit length of the FDRA domain is determined according to the BWP size of a bandwidth part and the resource allocation mode; or

18. The method of claim 17, wherein the first bit is used to indicate explicitly or implicitly whether a Sub-resource block Sub-RB level resource allocation is available.

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

20. The method of claim 17, wherein a second bit of the FDRA domain is used to indicate frequency domain resources for transmission.

21. The method of claim 20, wherein the second bit is for indicating a Sub-RB level frequency domain resource for transmission where the first bit indicates a Sub-RB level resource allocation.

22. The method of claim 21, wherein the second bit comprises, in case that the resource allocation manner is a resource allocation type 0: a first portion of bits, wherein:

23. The method of claim 22, wherein the second bit further comprises: a second portion of bits to indicate the sub-bands within the bandwidth portion, the second portion of bits including P bits, P > -0.

24. The method of claim 21, wherein the second bit comprises, in case that the resource allocation manner is a resource allocation type 1: a third portion of bits, wherein:

25. The method of any of claims 17 to 24, wherein in case of a resource allocation type0 and resource allocation type1 handover, a third bit of the FDRA field is used to indicate a handover of resource allocation type0 and resource allocation type 1.

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

27. The method of claim 17, wherein the TDRA field is used to implicitly indicate whether or not it is a Sub-RB level resource allocation.

28. The method of claim 27, wherein the TDRA domain is further for indicating at least one of:

29. A terminal, comprising: a memory, a transceiver, and a processor, wherein:

30. The terminal of claim 29, wherein the resource allocation indication field comprises: a Frequency Domain Resource Allocation (FDRA) domain, wherein a first bit of the FDRA domain is used for indicating the allocation level of resource allocation, and the terminal determines the bit length of the FDRA domain according to the BWP size of a bandwidth part and a resource allocation mode; or

31. The terminal of claim 30, wherein the first bit is used to indicate explicitly or implicitly whether a Sub-resource block Sub-RB level resource allocation is available.

32. A network device, comprising: a memory, a transceiver, and a processor, wherein:

33. The network device of claim 32, wherein the resource allocation indication field comprises: a frequency domain resource allocation FDRA domain, wherein a first bit of the FDRA domain is used for indicating the allocation level of resource allocation, and the bit length of the FDRA domain is determined according to the BWP size of a bandwidth part and the resource allocation mode; or

34. The network device of claim 33, wherein the first bit is used to indicate explicitly or implicitly whether a Sub-resource block Sub-RB level resource allocation is present.

35. A terminal, comprising:

36. The terminal of claim 35, wherein the resource allocation indication field comprises: a Frequency Domain Resource Allocation (FDRA) domain, wherein a first bit of the FDRA domain is used for indicating the allocation level of resource allocation, and the terminal determines the bit length of the FDRA domain according to the BWP size of a bandwidth part and a resource allocation mode; or

37. A network device, comprising:

38. The network device of claim 37, wherein the resource allocation indication field comprises: a frequency domain resource allocation FDRA domain, wherein a first bit of the FDRA domain is used for indicating the allocation level of resource allocation, and the bit length of the FDRA domain is determined according to the BWP size of a bandwidth part and the resource allocation mode; or

39. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to execute the resource allocation information determination method of any one of claims 1 to 15 or the resource allocation information indication method of any one of claims 16 to 28.