Resource determination, multi-carrier scheduling method and apparatus, and storage medium

Abstract

The present disclosure provides a resource determination, a multi-carrier scheduling method and device, and a storage medium, wherein the resource determination method comprises: receiving a downlink control information (DCI) sent by a base station; wherein the DCI is used to schedule data transmission of multiple cells; determining a sub-band parameter value allocated by a first cell within a frequency domain resource range; wherein the first cell is any one of the multiple cells; and determining a frequency domain resource of data transmission of the first cell based on a frequency domain resource allocation (FDRA) field indication value in the DCI and the sub-band parameter value of the first cell. The present disclosure can reduce DCI bit overhead on the basis of ensuring DCI scheduling flexibility, effectively avoid the problem of reduced DCI transmission efficiency, and has high availability.

Description

Technical Field

[0001] The present disclosure relates to the field of communications, and in particular to a resource determination, multi-carrier scheduling method and apparatus, and a storage medium. Background Art

[0002] 5th Generation Mobile Communication Technology (5G) New Radio (NR) operates within a relatively broad spectrum range. With the re-farming of the corresponding frequency bands in existing cellular networks, the utilization of the corresponding spectrum will steadily increase. However, for Frequency Range 1 (FR1), the available frequency resources are becoming increasingly fragmented. To meet diverse spectrum requirements, these fragmented spectrum resources need to be utilized with greater spectrum and power efficiency and flexibility, thereby achieving higher network throughput and good coverage.

[0003] Based on the relevant mechanism, a downlink control information (DCI) in the existing serving cell is only allowed to schedule data for one cell. However, with the gradual fragmentation of frequency resources, the demand for scheduling data for multiple cells at the same time will gradually increase. Therefore, it is necessary to introduce DCI that schedules data for multiple cells.

[0004] In the Release-18 (Rel-18) scenario, a single DCI can schedule three or more cells simultaneously. If the frequency domain resource allocation (FDRA) field in the DCI is simply expanded based on the method in the relevant technology, the number of bits occupied by the FDRA field will be significantly increased, which will increase the bit overhead of the DCI and reduce the DCI transmission resources. Summary of the Invention

[0005] To overcome the problems existing in the related art, the embodiments of the present disclosure provide a resource determination, multi-carrier scheduling method and device, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a resource determination method is provided, the method being executed by a terminal and comprising:

[0007] Receive downlink control information (DCI) sent by a base station; wherein the DCI is used to schedule data transmission of multiple cells;

[0008] Determine a subband parameter value allocated to a first cell within a frequency domain resource range; wherein the first cell is any one of the multiple cells;

[0009] Based on the frequency domain resource allocation FDRA field indication value in the DCI and the subband parameter value of the first cell, the frequency domain resources for data transmission of the first cell are determined.

[0010] Optionally, the subband parameter value is any one of the following:

[0011] Number of subbands;

[0012] Subband granularity.

[0013] Optionally, the method further includes any of the following:

[0014] Determining the subband parameter value of the first cell based on the signaling indication sent by the base station;

[0015] Based on protocol agreement, determine the subband parameter value of the first cell.

[0016] Optionally, the determining, based on the frequency domain resource allocation FDRA field indication value in the DCI and the subband parameter value of the first cell, the frequency domain resources for data transmission of the first cell includes:

[0017] Determining, based on the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell and the subband parameter value of the first cell, an RB range occupied by each subband of the first cell;

[0018] Determining a first subband index value for data transmission of the first cell based on the FDRA field indicator value;

[0019] Determine that the frequency domain resources for data transmission of the first cell are a range of RBs occupied by the first subband.

[0020] Optionally, the number of subbands of the multiple cells is different, and the FDRA field is used to indicate:

[0021] A reference subband index value for data transmission of a reference cell; wherein the reference cell is a cell among the multiple cells that is different from the first cell.

[0022] Optionally, the determining, based on the FDRA field indicator value, a first subband index value for data transmission of the first cell includes:

[0023] Determining the reference subband index value based on the bit value of the FDRA field;

[0024] When the reference subband index value is within the subband index range of the first cell, determine that a first subband index value for data transmission of the first cell is equal to the reference subband index value;

[0025] In a case where the reference subband index value is outside the subband index range of the first cell, it is determined that the first subband index value of data transmission of the first cell is equal to a preset subband index value.

[0026] Optionally, the DCI includes multiple FDRA domains; wherein the number of FDRA domains included in the DCI is equal to the number of cells in the multiple cells;

[0027] The i-th FDRA field is used to indicate:

[0028] The subband index value of data transmission of the i-th scheduled cell among the multiple cells, i is a positive integer less than or equal to the number of cells.

[0029] Optionally, the cell index value of the i-th scheduled cell is less than the cell index value of the i+1-th scheduled cell; or

[0030] The cell index value of the i-th scheduled cell is greater than the cell index value of the (i+1)-th scheduled cell.

[0031] Optionally, the determining, based on the FDRA field indicator value, a first subband index value for data transmission of the first cell includes:

[0032] Determining, among a plurality of FDRA domains included in the DCI, a first FDRA domain corresponding to the first cell;

[0033] A first subband index value for data transmission of the first cell is determined based on a bit value of the first FDRA field.

[0034] Optionally, the multiple cells have the same number of subbands, and the FDRA field is used to indicate:

[0035] The subband index value for data transmission of any one of the multiple cells is equal.

[0036] Optionally, the determining, based on the frequency domain resource allocation FDRA field indication value in the DCI and the subband parameter value of the first cell, the frequency domain resources for data transmission of the first cell includes:

[0037] Determining, based on the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell and the subband parameter value of the first cell, an RB range occupied by each subband of the first cell;

[0038] Determining a starting RB index value for data transmission of the first cell based on the FDRA field indicator value;

[0039] Determine a continuous number of RBs for data transmission in the first cell.

[0040] Optionally, the FDRA field is used to indicate:

[0041] a reference subband index value for data transmission of a reference cell; wherein the reference cell is a cell among the multiple cells that is different from the first cell;

[0042] and offsets of starting RB index values ​​for data transmission of other cells among the multiple cells except the reference cell relative to the starting position and / or the maximum frequency domain position of the reference subband.

[0043] Optionally, the granularity of the offset is any one of the following:

[0044] RB;

[0045] RBG;

[0046] Includes a specified subband with a specified number of RBs.

[0047] Optionally, the determining a starting RB index value for data transmission of the first cell based on a frequency domain resource allocation FDRA field indication value in the DCI includes:

[0048] Determining the offset corresponding to the first cell based on a bit value of a first bit interval corresponding to the first cell in the FDRA field;

[0049] Based on the reference subband index value and the offset corresponding to the first cell, a starting RB index value for data transmission of the first cell is determined.

[0050] Optionally, in the FDRA field, the reference bit interval corresponding to the reference cell is located before other bit intervals;

[0051] In the other bit intervals, the cell index value corresponding to the mth bit interval is smaller than the cell index value corresponding to the (m+1)th bit interval; or

[0052] The cell index value corresponding to the mth bit interval is greater than the cell index value corresponding to the m+1th bit interval; wherein m is a positive integer less than the number of cells scheduled by the DCI.

[0053] Optionally, the determining, based on the reference subband index value and the offset corresponding to the first cell, a starting RB index value for data transmission of the first cell includes:

[0054] When the reference subband index value is within the subband index range of the first cell, determine that a first subband index value for data transmission of the first cell is equal to the reference subband index value;

[0055] When the reference subband index value is outside the subband index range of the first cell, determining that a first subband index value for data transmission of the first cell is equal to a preset subband index value;

[0056] Based on the starting RB index value of the first subband and the offset corresponding to the first cell, a starting RB index value for data transmission of the first cell is determined.

[0057] Optionally, the determining the number of continuous RBs for data transmission of the first cell includes any one of the following:

[0058] Determine that the number of continuous RBs for data transmission of the first cell is equal to the number of RBs included in the reference subband of the reference cell;

[0059] It is determined that the number of continuous RBs for data transmission in the first cell is equal to the number of RBs included in the first subband.

[0060] According to a second aspect of an embodiment of the present disclosure, a multi-carrier scheduling method is provided, where the method is performed by a base station and includes:

[0061] Determining frequency domain resources for data transmission of each cell scheduled by downlink control information DCI, wherein the DCI is used to schedule data transmission of multiple cells;

[0062] Determining a subband parameter value allocated to each cell within a frequency domain resource range;

[0063] Determine a bit value of a frequency domain resource allocation FDRA field in the DCI based at least on the frequency domain resources and the subband parameter value of one cell among the multiple cells; and send the DCI to a terminal.

[0064] Optionally, the subband parameter value is any one of the following:

[0065] Number of subbands;

[0066] Subband granularity.

[0067] Optionally, the method further includes any of the following:

[0068] Sending signaling for indicating the subband parameter value of each cell to the terminal;

[0069] Based on protocol agreement, the subband parameter value of each cell is determined.

[0070] Optionally, determining frequency domain resources for data transmission of each cell scheduled by downlink control information DCI includes:

[0071] Determining, based on the number of resource blocks (RBs) occupied by a frequency domain resource range of a first cell and the subband parameter value of the first cell, an RB range occupied by each subband of the first cell; wherein the first cell is any one of the multiple cells;

[0072] determining a first subband index value for data transmission of the first cell;

[0073] Determine that the frequency domain resources for data transmission of the first cell are a range of RBs occupied by the first subband.

[0074] Optionally, the determining a first subband index value for data transmission of the first cell includes:

[0075] When a reference subband index value for data transmission of a reference cell is within a subband index range of the first cell, determining that the first subband index value is equal to the reference subband index value; wherein the reference cell is a cell different from the first cell among the multiple cells;

[0076] In a case where the reference subband index value is outside the subband index range of the first cell, it is determined that the first subband index value of data transmission of the first cell is equal to a preset subband index value.

[0077] Optionally, the number of subbands of the multiple cells is different, and the FDRA field is used to indicate:

[0078] The reference subband index value.

[0079] Optionally, the DCI includes multiple FDRA domains; wherein the number of FDRA domains included in the DCI is equal to the number of cells in the multiple cells;

[0080] The i-th FDRA field is used to indicate:

[0081] The subband index value of data transmission of the i-th scheduled cell among the multiple cells, i is a positive integer less than or equal to the number of cells.

[0082] Optionally, the cell index value of the i-th scheduled cell is less than the cell index value of the i+1-th scheduled cell; or

[0083] The cell index value of the i-th scheduled cell is greater than the cell index value of the (i+1)-th scheduled cell.

[0084] Optionally, the determining, based at least on the frequency domain resources and the subband parameter value of one cell among the multiple cells, a bit value included in the frequency domain resource allocation FDRA field in the DCI includes:

[0085] determining a first FDRA field corresponding to the first cell in a plurality of FDRA fields included in the DCI;

[0086] determining a bit value of the FDRA field corresponding to the first cell based on the first sub-band index value.

[0087] Optionally, the number of sub-bands of the plurality of cells is the same, and the FDRA field is used to indicate:

[0088] a sub-band index value of data transmission of any one of the plurality of cells; wherein the sub-band index value of data transmission of each of the plurality of cells is equal.

[0089] Optionally, the determining of the frequency domain resource of data transmission of each cell scheduled by the downlink control information DCI comprises:

[0090] determining a starting RB index value of data transmission of a first cell; wherein the first cell is any one of the plurality of cells;

[0091] determining a number of continuous RBs of data transmission of the first cell.

[0092] Optionally, the determining of the starting RB index value of data transmission of the first cell comprises:

[0093] determining the starting RB index value of data transmission of the first cell based on an offset of a reference sub-band index value of a reference cell and the starting RB index value of data transmission of the first cell relative to a starting position and / or a maximum frequency domain position of the reference sub-band; wherein the reference cell is a cell of the plurality of cells different from the first cell.

[0094] Optionally, the determining of the starting RB index value of data transmission of the first cell based on the offset of the reference sub-band index value of the reference cell and the starting RB index value of data transmission of the first cell relative to the starting position and / or the maximum frequency domain position of the reference sub-band comprises:

[0095] in a case that the reference sub-band index value is within a sub-band index range of the first cell, determining that a first sub-band index value of data transmission of the first cell is equal to the reference sub-band index value;

[0096] in a case that the reference sub-band index value is outside the sub-band index range of the first cell, determining that the first sub-band index value of data transmission of the first cell is equal to a preset sub-band index value;

[0097] determining the starting RB index value of data transmission of the first cell based on the starting RB index value of the first sub-band and the offset corresponding to the first cell.

[0098] Optionally, the determining the number of continuous RBs for data transmission of the first cell includes any one of the following:

[0099] Determining that the number of continuous RBs for data transmission of the first cell is equal to the number of RBs included in the reference subband of the reference cell;

[0100] It is determined that the number of continuous RBs for data transmission in the first cell is equal to the number of RBs included in the first subband.

[0101] Optionally, the FDRA field is used to indicate:

[0102] The reference subband index value; wherein the reference cell is a cell different from the first cell among the multiple cells;

[0103] and offsets of starting RB index values ​​for data transmission of other cells among the multiple cells except the reference cell relative to the starting position and / or the maximum frequency domain position of the reference subband.

[0104] Optionally, the granularity of the offset of the starting RB index value relative to the reference subband index value is any one of the following:

[0105] RB;

[0106] RBG;

[0107] Includes a specified subband with a specified number of RBs.

[0108] Optionally, in the FDRA field, the reference bit interval corresponding to the reference cell is located before other bit intervals;

[0109] In the other bit intervals, the cell index value corresponding to the mth bit interval is smaller than the cell index value corresponding to the (m+1)th bit interval; or

[0110] The cell index value corresponding to the mth bit interval is greater than the cell index value corresponding to the m+1th bit interval; wherein m is a positive integer less than the number of cells scheduled by the DCI.

[0111] According to a third aspect of an embodiment of the present disclosure, a resource determination device is provided, where the device is applied to a terminal and includes:

[0112] A receiving module configured to receive downlink control information (DCI) sent by a base station; wherein the DCI is used to schedule data transmission of multiple cells;

[0113] A first determining module is configured to determine a subband parameter value allocated to a first cell within a frequency domain resource range; wherein the first cell is any one of the multiple cells;

[0114] The second determining module is configured to determine frequency domain resources of data transmission of the first cell based on the FDRA field indication value in the DCI and the sub-band parameter value of the first cell.

[0115] According to a fourth aspect of the embodiments of the present disclosure, a multi-carrier scheduling apparatus is provided, which is applied to a base station and includes:

[0116] The third determining module is configured to determine frequency domain resources of data transmission of each cell scheduled by downlink control information (DCI), wherein the DCI is used to schedule data transmission of multiple cells.

[0117] The fourth determining module is configured to determine a sub-band parameter value allocated by the each cell within the frequency domain resource range.

[0118] The fifth determining module is configured to determine a bit value included in a frequency domain resource allocation (FDRA) field in the DCI based on at least the frequency domain resources and the sub-band parameter value of one of the multiple cells.

[0119] The sending module is configured to send the DCI to a terminal.

[0120] According to a fifth aspect of the embodiments of the present disclosure, a computer readable storage medium is provided, which stores a computer program for executing the resource determining method in any of the above aspects.

[0121] According to a sixth aspect of the embodiments of the present disclosure, a computer readable storage medium is provided, which stores a computer program for executing the multi-carrier scheduling method in any of the above aspects.

[0122] According to a seventh aspect of the embodiments of the present disclosure, a resource determining apparatus is provided, which includes:

[0123] a processor;

[0124] a memory for storing processor-executable instructions;

[0125] The processor is configured to execute the resource determining method in any of the above aspects.

[0126] According to an eighth aspect of the embodiments of the present disclosure, a multi-carrier scheduling apparatus is provided, which includes:

[0127] a processor;

[0128] a memory for storing processor-executable instructions;

[0129] The processor is configured to execute the multi-carrier scheduling method in any of the above aspects.

[0130] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0131] In an embodiment of the present disclosure, a terminal can receive DCI sent by a base station for scheduling data transmission in multiple cells. The terminal can also determine the subband parameter value allocated to a first cell among the multiple cells within a frequency domain resource range, and determine the frequency domain resource for data transmission in the first cell based on the FDRA field indication value in the DCI and the subband parameter value of the first cell. The present disclosure can reduce DCI bit overhead while ensuring DCI scheduling flexibility, effectively avoiding the problem of reduced DCI transmission efficiency, and has high usability.

[0132] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0133] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0134] Figure 1 The diagram is a schematic diagram showing a single DCI scheduling PDSCHs of multiple cells according to an exemplary embodiment.

[0135] Figure 2 The figure is a flowchart of a resource determination method according to an exemplary embodiment.

[0136] Figure 3 The figure is a flowchart of another resource determination method according to an exemplary embodiment.

[0137] Figure 4 The figure is a flowchart of another resource determination method according to an exemplary embodiment.

[0138] Figure 5 The figure is a flowchart of a multi-carrier scheduling method according to an exemplary embodiment.

[0139] Figure 6 The figure is a schematic diagram showing a method of determining frequency domain resources for data transmission of a cell based on FDRA field indication according to an exemplary embodiment.

[0140] Figure 7 The figure is a block diagram of a device for determining resources according to an exemplary embodiment.

[0141] Figure 8 The figure is a block diagram of a multi-carrier scheduling device according to an exemplary embodiment.

[0142] Figure 9The diagram is a structural diagram of a resource determination device according to an exemplary embodiment of the present disclosure.

[0143] Figure 10 It is a structural diagram of a multi-carrier scheduling device according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0144] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent like or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0145] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of at least one of the associated listed items.

[0146] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

[0147] Based on the relevant mechanism, a DCI in a scheduling cell is only allowed to schedule the data transmission of one cell, that is, it is only allowed to schedule the physical uplink shared channel (PUSCH) or physical downlink shared channel (PDSCH) of one cell. With the gradual fragmentation of frequency resources, the demand for scheduling data of multiple cells at the same time will gradually increase. At the same time, in order to reduce the control signaling overhead, Rel-18 WID supports a single DCI to schedule PDSCH or PUSCH of multiple cells. It should be noted that each cell corresponds to one PDSCH and one PUSCH. Scheduling PDSCH of three cells through one DCI can be as follows: Figure 1 shown.

[0148] In scenarios where a single DCI schedules data transmission for multiple cells, minimizing DCI overhead while ensuring scheduling flexibility is a pressing issue. The FDRA field is used to indicate the frequency domain resources used for data transmission within a cell. The Rel-17 design for a single DCI scheduling scenario for two cells proposed a simple extension of the DCI FDRA field, indicating the frequency domain information for the two cells' scheduled data based on different bits.

[0149] In Rel-18 scenarios, a single DCI can simultaneously schedule three or more cells. If the FDRA field is simply expanded based on the above method, the number of bits occupied by the FDRA field will be significantly increased, increasing DCI bit overhead. For example, if a single DCI schedules three cells, and each cell is configured with a BWP occupying 100 RBs, if the FDRA field corresponding to these three cells is configured based on resource type 1, the number of bits occupied by the FDRA field will be 39, significantly increasing DCI overhead and reducing DCI transmission resources.

[0150] In the embodiment of the present disclosure, the FDRA resource mapping type of type 1, that is, the resource indication value (RIV) corresponding to the FDRA field corresponds to the starting resource block RB (RB) of the frequency domain resource corresponding to the transmission data. start ) and the duration of RB (L RBs ).

[0151] It should be understood that the RB mentioned in this disclosure may refer to a physical resource block (PRB), a virtual resource block (VRB), or a general term for PRB and VRB, and this disclosure does not limit this.

[0152] For type 1 downlink resource allocations other than DCI format 1_0 and DCI format 1_2 in the common search space (CSS), the RIV value indicated by the FDRA field is the same as the RB start and L RBs The relationship between is shown in the following formula:

[0153] like but

[0154] otherwise,

[0155] in, The number of resource blocks (RBs) occupied by the configured BWP.

[0156] For type 1 resource allocation corresponding to DCI format 1_2, the RIV indicated by the FDRA field is associated with the RBG starting position and the persistent resource length. The RBG starting position and resource length are based on the granularity of the Resource Block Group (RBG). The corresponding RIV is determined based on the following formula:

[0157] like Then RIV=N RBG (L RBGs -1)+RBG star

[0158] Otherwise, RIV=N RBG (N RBG -L RBGs +1)+(N RBG -1-RBG star )

[0159] Where 1≤L RBGs ≤N RBG -RBG star .

[0160] An RBG contains multiple RBs. The specific number of RBs is associated with the number of RBs contained in a BWP. The specific association is shown in Table 1:

[0161] Table 1

[0162] BWP size Configuration 1 Configuration 2 1-36 2 4 37-72 4 8 73-144 8 16 145-275 16 16

[0163] For DCI scheduling multiple cells, if the FDRA field is simply expanded, the DCI bits overhead will be greatly increased and the DCI transmission efficiency will be reduced.

[0164] To solve the above technical problems, the present disclosure provides a resource determination and multi-carrier scheduling method and apparatus, and a storage medium. While ensuring DCI scheduling flexibility, it reduces DCI bit overhead, effectively avoids the problem of reduced DCI transmission efficiency, and has high availability.

[0165] The following first introduces the resource determination method provided by the present disclosure from the terminal side.

[0166] The present disclosure provides a method for determining resources. Figure 2 As shown, Figure 2 This is a flow chart of a resource determination method according to an embodiment, which can be executed by a terminal. The method may include the following steps:

[0167] In step 201, downlink control information DCI sent by a base station is received; wherein the DCI is used to schedule data transmission of multiple cells.

[0168] In the embodiment of the present disclosure, DCI used to schedule data transmission of multiple cells may include but is not limited to scheduling PDSCHs of multiple cells and / or PUSCHs of multiple cells, wherein each cell corresponds to one PDSCH and / or each cell corresponds to one PUSCH.

[0169] In step 202, a subband parameter value allocated to the first cell within a frequency domain resource range is determined.

[0170] In the embodiment of the present disclosure, the first cell is any one of the multiple cells scheduled by the DCI. The frequency domain resource range of the first cell can be the frequency domain range corresponding to the bandwidth part (Bandwidth Part, BWP) configured for the first cell, or the frequency domain range corresponding to the carrier where the first cell is located, which is not limited in the present disclosure.

[0171] In a possible implementation, the subband parameter value may be any one of the following: the number of subbands; or the subband granularity.

[0172] In a possible implementation, the subband parameter values ​​of multiple cells may be the same or different, which is not limited in this disclosure.

[0173] In a possible implementation manner, the terminal may determine a subband parameter value of a first cell among multiple cells based on a signaling indication sent by the base station.

[0174] In another possible implementation manner, the terminal may determine the subband parameter value of the first cell based on protocol agreement.

[0175] The present disclosure does not limit the execution order of step 201 and step 202, that is, step 201 may be executed first and then step 202, or step 202 may be executed first and then step 201. Of course, if the terminal first detects and receives DCI, determines multiple cells scheduled by the base station according to the indication of the DCI, and then specifically searches for the subband parameter value of the first cell among the multiple cells, terminal resources can be effectively saved.

[0176] In step 203, frequency domain resources for data transmission of the first cell are determined based on the frequency domain resource allocation FDRA field indication value in the DCI and the subband parameter value of the first cell.

[0177] In the above embodiment, on the basis of ensuring the flexibility of DCI scheduling, the DCI bit overhead is reduced, the problem of reduced DCI transmission efficiency is effectively avoided, and the availability is high.

[0178] In some optional embodiments, when the terminal needs to determine the subband granularity based on the signaling indication sent by the base station, if the base station does not configure the subband granularity through signaling, the terminal can determine the subband granularity based on the number of RBs occupied by the RBG configured in the first cell, that is, the terminal can directly use the number of RBs occupied by the RBG configured in the first cell as the subband granularity.

[0179] In the above embodiment, the terminal can flexibly determine the sub-band granularity, which is simple to implement and has high availability.

[0180] In some optional embodiments, reference Figure 3 As shown, Figure 3 This is a flow chart of a resource determination method according to an embodiment, which can be executed by a terminal. The method may include the following steps:

[0181] In step 301, downlink control information DCI sent by a base station is received; wherein the DCI is used to schedule data transmission of multiple cells.

[0182] In the embodiment of the present disclosure, DCI used to schedule data transmission of multiple cells may include but is not limited to scheduling PDSCHs of multiple cells and / or PUSCHs of multiple cells, wherein each cell corresponds to one PDSCH and / or each cell corresponds to one PUSCH.

[0183] In step 302, a subband parameter value allocated to the first cell within a frequency domain resource range is determined.

[0184] In the embodiment of the present disclosure, the first cell is any one of the multiple cells scheduled by the DCI. The frequency domain resource range of the first cell can be the frequency domain range corresponding to the BWP configured for the first cell, or the frequency domain range corresponding to the carrier where the first cell is located, which is not limited in the present disclosure.

[0185] In a possible implementation, the subband parameter value may be any one of the following: the number of subbands; or the subband granularity.

[0186] In a possible implementation, the subband parameter values ​​of multiple cells may be the same or different, which is not limited in this disclosure.

[0187] In a possible implementation manner, the terminal may determine a subband parameter value of a first cell among multiple cells based on a signaling indication sent by the base station.

[0188] In another possible implementation manner, the terminal may determine the subband parameter value of the first cell based on protocol agreement.

[0189] The present disclosure does not limit the execution order of step 301 and step 302 .

[0190] In step 303, based on the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell and the subband parameter value of the first cell, the RB range occupied by each subband of the first cell is determined.

[0191] In the embodiment of the present disclosure, the subband parameter value may be the number of subbands or the subband granularity.

[0192] In step 304, a first subband index value for data transmission of the first cell is determined based on the FDRA field indicator value.

[0193] In step 305, it is determined that the frequency domain resources for data transmission of the first cell are the RB range occupied by the first subband.

[0194] In the above embodiment, the terminal can determine the RB range occupied by each subband of the first cell based on the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell and the subband parameter value of the first cell, and then determine the first subband index value for data transmission of the first cell according to the FDRA field indicator value. It can then determine that the frequency domain resources for data transmission of the first cell are the RB range occupied by the first subband. While ensuring DCI scheduling flexibility, DCI bit overhead is reduced, effectively avoiding the problem of reduced DCI transmission efficiency, and achieving high availability.

[0195] In some optional embodiments, reference Figure 4 As shown, Figure 4 This is a flow chart of a resource determination method according to an embodiment, which can be executed by a terminal. The method may include the following steps:

[0196] In step 401, downlink control information DCI sent by a base station is received; wherein the DCI is used to schedule data transmission of multiple cells.

[0197] In the embodiment of the present disclosure, DCI used to schedule data transmission of multiple cells may include but is not limited to scheduling PDSCHs of multiple cells and / or PUSCHs of multiple cells, wherein each cell corresponds to one PDSCH and / or each cell corresponds to one PUSCH.

[0198] In step 402, a subband parameter value allocated to the first cell within a frequency domain resource range is determined.

[0199] In the embodiment of the present disclosure, the first cell is any one of the multiple cells scheduled by the DCI. The frequency domain resource range of the first cell can be the frequency domain range corresponding to the BWP configured for the first cell, or the frequency domain range corresponding to the carrier where the first cell is located, which is not limited in the present disclosure.

[0200] In a possible implementation, the subband parameter value may be any one of the following: the number of subbands; or the subband granularity.

[0201] In a possible implementation, the subband parameter values ​​of multiple cells may be the same or different, which is not limited in this disclosure.

[0202] In a possible implementation manner, the terminal may determine a subband parameter value of a first cell among multiple cells based on a signaling indication sent by the base station.

[0203] In another possible implementation manner, the terminal may determine the subband parameter value of the first cell based on protocol agreement.

[0204] For example, the protocol stipulates that the subband parameter value configured for the scheduled cell i is N i The terminal determines that the first cell belongs to the scheduled cell i, and can determine the subband parameter value to be N based on the protocol agreement. i .

[0205] In another possible implementation, the terminal may determine the subband parameter value of the first cell based on a protocol agreement and a signaling indication sent by the base station.

[0206] For example, a protocol agreement or base station signaling predefines a set of subband parameter values, and then indicates the subband parameter value of the first cell as one of the value sets through DCI. It should be noted that if the subband parameter values ​​of multiple cells are different, the base station can indicate multiple values ​​from the value set for the multiple cells through DCI.

[0207] The present disclosure does not limit the execution order of step 401 and step 402 .

[0208] In step 403, based on the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell and the subband parameter value of the first cell, the RB range occupied by each subband of the first cell is determined.

[0209] In step 404, a starting RB index value for data transmission of the first cell is determined based on the FDRA field indicator value.

[0210] In an embodiment of the present disclosure, the FDRA field can be used to indicate: a reference subband index value for data transmission of a reference cell; wherein the reference cell is a cell among the multiple cells that is different from the first cell; and the offset of the starting RB index value for data transmission of other cells among the multiple cells except the reference cell relative to the starting position and / or the maximum frequency domain position of the reference subband.

[0211] The terminal can determine the offset corresponding to the first cell based on a bit value of a first bit interval corresponding to the first cell in the FDRA field, and determine a starting RB index value of data transmission of the first cell based on the reference sub-band index value and the offset corresponding to the first cell. The specific implementation will be described in subsequent embodiments, which will not be described here.

[0212] In step 405, the number of continuous RBs of data transmission of the first cell is determined.

[0213] In the embodiments of the present disclosure, the number of continuous RBs of data transmission of the first cell can be determined based on the number of RBs included in the reference sub-band of the reference cell, or can be determined based on the number of RBs included in the first sub-band of data transmission of the first cell. The specific implementation will be described in subsequent embodiments, which will not be described here.

[0214] In the embodiments of the present disclosure, the frequency domain resource of data transmission of the first cell includes a range of RBs starting from the starting RB and having a length of the number of continuous RBs.

[0215] In the above embodiments, the terminal can determine the starting RB index value of data transmission of the first cell according to the FDRA field indication value, and further determine the number of continuous RBs of data transmission of the first cell based on at least the sub-band parameter value of the first cell, so as to determine the frequency domain resource of data transmission of the first cell. On the basis of ensuring the flexibility of DCI scheduling, the DCI bit overhead is reduced, and the problem of reducing the transmission efficiency of DCI is effectively avoided, and the usability is high.

[0216] The scheme provided by the present disclosure will be further described below for different sub-band parameter values.

[0217] In some optional embodiments, the sub-band parameter value is the number of sub-bands N i , and the FDRA field can be indicated in the following way:

[0218] The first way is a joint indication way.

[0219] In one possible implementation, the FDRA field can be used to indicate:

[0220] The reference sub-band index value of data transmission of the reference cell; wherein the reference cell is a cell different from the first cell in the plurality of cells.

[0221] In the embodiments of the present disclosure, the reference cell can be indicated by the base station through signaling, or the reference cell can be determined by protocol agreement.

[0222] In one possible implementation, a cell receiving DCI in the plurality of cells can be taken as the reference cell.

[0223] In another possible implementation, the cell with the largest number of RBs occupied by the configured BWP among multiple cells may be used as the reference cell.

[0224] In another possible implementation, the cell with the least number of RBs occupied by the configured BWP among multiple cells may be used as the reference cell.

[0225] In another possible implementation, the cell with the largest corresponding cell index number among the multiple cells may be used as the reference cell.

[0226] In another possible implementation, the cell with the smallest corresponding cell index number among the multiple cells may be used as the reference cell.

[0227] The above description is merely an exemplary description. In actual applications, any method of determining a reference cell among multiple cells should fall within the scope of protection of the present disclosure.

[0228] In the embodiment of the present disclosure, the terminal is based on Figure 3 The method shown determines the frequency domain resources of the first cell.

[0229] For step 303, the subband parameter value is the number of subbands N i , the RB ranges occupied by each sub-band are: {0, Among them, N RB,i It refers to the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell.

[0230] Accordingly, step 304 may include the following steps:

[0231] First, the reference subband index value is determined based on the bit value of the FDRA field.

[0232] In the embodiment of the present disclosure, the bit value of the FDRA field is the reference subband value.

[0233] Secondly, when the reference subband index value is within the subband index range of the first cell, it is determined that the first subband index value of data transmission of the first cell is equal to the reference subband index value.

[0234] In the embodiment of the present disclosure, if the reference subband index value is in [0, (N i -1)], for example, the reference subband index value is less than N i , the first subband index value is equal to the reference subband index value indicated by the FDRA field.

[0235] In addition, in a case where the reference sub-band index value is located outside the sub-band index range of the first cell, the first sub-band index value of the data transmission of the first cell is determined to be equal to a preset sub-band index value.

[0236] In the embodiments of the present disclosure, if the reference sub-band index value is located outside the range of [0, (N i -1)], for example, the reference sub-band index value is greater than or equal to N i -1, the first sub-band index value can be a preset sub-band index value. Optionally, the preset sub-band value can be N i -1, that is, the number of sub-bands minus 1.

[0237] In another possible implementation, in a case where the number of sub-bands of the plurality of cells is the same, the FDRA field can be used to indicate:

[0238] The sub-band index value of any one of the plurality of cells for data transmission. Wherein the sub-band index value of each of the plurality of cells for data transmission is equal.

[0239] At this time, the terminal determines the sub-band index value of the first cell according to the method shown in FIG. 6. i The number of sub-bands of the plurality of cells is N. The value of N can be determined by a protocol agreement or by signaling sent by the base station, which is not limited in the present disclosure. Accordingly, the sub-band index value of each of the plurality of cells for data transmission can be equal. The FDRA field indicates the sub-band index value of any one of the plurality of cells.

[0240] The terminal determines the frequency domain resource corresponding to the first cell according to the method shown in FIG. 6. Figure 3

[0241] For step 303, the sub-band parameter value is the number of sub-bands N i , and the RB range of each sub-band is respectively: Wherein, N RB,i is the number of resource blocks RB in the frequency domain resource range of the first cell.

[0242] Correspondingly, step 304 can be specifically:

[0243] Based on the FDRA field indication value, the first sub-band of the data transmission of the first cell is directly determined.

[0244] In another possible implementation, the FDRA field can be used to indicate:

[0245] The reference sub-band index value of the data transmission of the reference cell;

[0246] ​The offset of the starting RB index value of the data transmission of the other cells in the plurality of cells other than the reference cell relative to the starting position and / or the maximum frequency domain position of the reference sub-band respectively.

[0247] The determination manner of the reference cell is similar to the reference cell determination manner provided in the above embodiments, which will not be described herein.

[0248] Optionally, the granularity of the offset can be any of the following: RB; RBG; a specified sub-band including a specified number of RBs.

[0249] The specified number of RBs can be the number of RBs included in the sub-band of the first cell, or other preset number of RBs, and the preset number of RBs can be 6.

[0250] At this time, the terminal can determine the frequency domain resource corresponding to the first cell according to the method shown in the following table. Figure 4

[0251] For step 403, the sub-band parameter value is the number of sub-bands N i The RB range occupied by each sub-band is respectively: Wherein, N RB,i is the number of resource blocks RB occupied by the frequency domain resource range of the first cell.

[0252] Step 404 can specifically include the following steps:

[0253] The terminal determines the offset of the starting RB index value of the data transmission of the first cell relative to the reference sub-band index value based on the bit value of the first bit interval corresponding to the first cell in the FDRA field.

[0254] Further, based on the reference sub-band index value indicated by the FDRA field and the offset corresponding to the first cell, the starting RB index value of the data transmission of the first cell is determined.

[0255] In the FDRA field of the DCI, the reference bit interval corresponding to the reference cell can be located before other bit intervals; in the other bit intervals, the cell index value corresponding to the mthbit interval is less than the cell index value corresponding to the m+1thbit interval.

[0256] For example, the plurality of cells scheduled by the DCI are cell#1, cell#2, cell4, the reference cell is cell#2, and the reference bit interval corresponding to cell#2 is located before the other two bit intervals. The bit interval corresponding to cell#1 is located before the bit interval corresponding to cell#4. That is, in the DCI, from left to right, there are the reference bit interval corresponding to cell#2, the bit interval corresponding to cell#1, and the bit interval corresponding to cell#4.​

[0257] Or in the FDRA domain of the DCI, the reference bit interval corresponding to the reference cell may be located before other bit intervals; in the other bit intervals, the cell index value corresponding to the mth bit interval is greater than the cell index value corresponding to the m+1th bit interval; wherein m is a positive integer less than the number of cells scheduled by the DCI.

[0258] In the embodiment of the present disclosure, if the reference subband index value is within the subband index range of the first cell, for example, the reference subband index value is less than N i , determining that the first subband index value of the data transmission of the first cell is equal to the reference subband index value, if the reference subband index value is outside the subband index range of the first cell, for example, the reference subband index value is greater than or equal to N i , determine that the first subband index value of the first cell is equal to the preset subband index value. The preset subband index value can be N i -1.

[0259] Furthermore, the starting RB index value in the first subband is added to the number of RBs occupied by the offset corresponding to the first cell, and the sum is added to the number of RBs occupied by the first cell in the frequency domain resource range N. RB,i Take the remainder and use the remainder as the starting RB index value for data transmission of the first cell.

[0260] Step 405 may specifically include any of the following:

[0261] When the reference subband index value is within the subband index range of the first cell, determine that a first subband index value for data transmission of the first cell is equal to the reference subband index value;

[0262] In the case where the reference subband index value is outside the subband index range of the first cell, the first subband index value of the data transmission of the first cell is determined to be equal to the preset subband index value; the data transmission of the cell determines that the number of continuous RBs for the data transmission of the first cell is equal to the number of RBs included in the first subband.

[0263] That is, the number of continuous RBs for data transmission in the first cell is equal to the number of RBs included in the reference subband of the reference cell, where the reference subband and the first subband for data transmission in the first cell have the same subband index value. Alternatively, the terminal may determine that the number of continuous RBs for data transmission in the first cell is equal to the number of RBs included in the first subband.

[0264] In the above embodiment, the FDRA domain adopts a joint indication method. The terminal can determine the frequency domain resources for data transmission of the first cell based on the number of subbands of the first cell and the FDRA domain indication value. On the basis of ensuring the flexibility of DCI scheduling, the DCI bit overhead is reduced, and the problem of reduced DCI transmission efficiency is effectively avoided, with high availability.

[0265] The second method is the separate indication method.

[0266] In one possible implementation, the DCI includes multiple FDRA fields; wherein the number of the FDRA fields included in the DCI is equal to the number of cells in the multiple cells;

[0267] The i-th FDRA field is used to indicate:

[0268] The subband index value of data transmission of the i-th scheduled cell among the multiple cells, i is a positive integer less than or equal to the number of cells.

[0269] The cell index value of the i-th scheduled cell is less than the cell index value of the i+1-th scheduled cell. For example, if the three cells scheduled by DCI are cell#1, cell#2, and cell#4, then cell#1 corresponds to the first FDRA domain, cell#2 corresponds to the second FDRA domain, and cell#4 corresponds to the third FDRA domain.

[0270] Alternatively, the cell index value of the i-th scheduled cell is greater than the cell index value of the i+1-th scheduled cell. For example, if the three cells scheduled by DCI are cell#1, cell#2, and cell#4, then cell#4 corresponds to the first FDRA domain, cell#2 corresponds to the second FDRA domain, and cell#1 corresponds to the third FDRA domain.

[0271] At this time, the terminal can be based on Figure 3 The method shown determines the frequency domain resources of the first cell.

[0272] For step 303, the subband parameter value is the number of subbands N i , the RB ranges occupied by each sub-band are: Among them, N RB,i It refers to the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell.

[0273] Accordingly, step 304 may specifically include:

[0274] First, a first FDRA domain corresponding to the first cell is determined among multiple FDRA domains included in the DCI.

[0275] Secondly, based on the bit value of the first FDRA field, a first subband index value for data transmission of the first cell is determined.

[0276] In the embodiment of the present disclosure, the first FDRA field is only used to indicate the first subband index value. The terminal can quickly determine the first subband index value according to the bit value of the first FDRA field.

[0277] At this time, the terminal determines that the frequency domain resources for data transmission in the first cell are the RB range occupied by the first subband.

[0278] In the above embodiment, the FDRA domain adopts a separate indication method. The terminal determines the frequency domain resources for data transmission of the first cell based on the number of subbands of the first cell and the first FDRA domain indication value corresponding to the first cell. On the basis of ensuring the flexibility of DCI scheduling, the DCI bit overhead is reduced, the problem of reduced DCI transmission efficiency is effectively avoided, and the availability is high.

[0279] In some optional embodiments, the subband parameter value is the subband granularity M i The subband granularity may refer to the number of RBs included in a subband.

[0280] The FDRA field can be indicated in the following ways:

[0281] In one possible implementation, the FDRA field may be used to indicate:

[0282] A reference subband index value for data transmission of a reference cell; wherein the reference cell is a cell among the multiple cells that is different from the first cell.

[0283] In the embodiment of the present disclosure, the reference cell may be indicated by the base station through signaling, or the reference cell may be determined by protocol agreement.

[0284] In a possible implementation, a cell receiving DCI among multiple cells may be used as the reference cell.

[0285] In another possible implementation, the cell with the largest number of RBs occupied by the configured BWP among multiple cells may be used as the reference cell.

[0286] In another possible implementation, the cell with the least number of RBs occupied by the configured BWP among multiple cells may be used as the reference cell.

[0287] In another possible implementation, the cell with the largest corresponding cell index number among the multiple cells may be used as the reference cell.

[0288] In another possible implementation, the cell with the smallest corresponding cell index number among the multiple cells may be used as the reference cell.

[0289] The above description is merely an exemplary description. In actual applications, any method of determining a reference cell among multiple cells should fall within the scope of protection of the present disclosure.

[0290] In the embodiment of the present disclosure, the terminal is based on Figure 3 The method shown determines the frequency domain resources of the first cell.

[0291] For step 303, the subband parameter value is the subband granularity M i The RB range occupied by each subband can be determined in the following way:

[0292] Based on the sub-band granularity M i and the number of resource blocks (RBs) N occupied by the terminal in the frequency domain resource range of the first cell RB，i , determine the number of subbands N i ,

[0293] Furthermore, the number of RBs occupied by the first subband

[0294] like The number of RBs occupied by the last subband is:

[0295] Otherwise, the number of RBs occupied by the last subband is equal to M i ;

[0296] The number of RBs occupied by other subbands is equal to M i .

[0297] Accordingly, step 304 may include the following steps:

[0298] First, the reference subband index value is determined based on the bit value of the FDRA field.

[0299] In the embodiment of the present disclosure, the bit value of the FDRA field is the reference subband value.

[0300] Secondly, when the reference subband index value is within the subband index range of the first cell, it is determined that the first subband index value of data transmission of the first cell is equal to the reference subband index value.

[0301] In the embodiment of the present disclosure, if the reference subband index value is in [0, (N i -1)], for example, the reference subband index value is less than N i, the first subband index value is equal to the reference subband index value indicated by the FDRA field.

[0302] In addition, when the reference subband index value is outside the subband index range of the first cell, for example, the reference subband index value is greater than or equal to N i , determine that the first subband index value of the data transmission of the first cell is equal to the preset subband index value.

[0303] In the embodiment of the present disclosure, if the reference subband index value is in [0, (N i -1)], for example, the reference subband index value is greater than or equal to N i , the first subband index value may be a preset subband index value, optionally, the preset subband value may be N i -1, that is, the number of subbands is reduced by 1.

[0304] In another possible implementation, when multiple cells have the same number of subbands, the FDRA field may be used to indicate:

[0305] The subband index value for data transmission of any one of the multiple cells is equal.

[0306] At this time, the terminal is in the first cell's subband granularity N i = N, and the number of subbands in each of the multiple cells is N. The value of N can be determined by protocol agreement or by signaling sent by the base station, and this disclosure does not limit this. Accordingly, the subband index value used for data transmission in each of the multiple cells can be equal. The FDRA field can simply indicate the subband index value of any one of the multiple cells.

[0307] The terminal also follows Figure 3 The method shown determines the frequency domain resources corresponding to the first cell.

[0308] For step 303, the subband parameter value is the subband granularity Mi,

[0309] Number of subbands

[0310] Furthermore, the number of RBs occupied by the first subband

[0311] like The number of RBs occupied by the last subband is:

[0312] Otherwise, the number of RBs occupied by the last subband is equal to Mi;

[0313] The number of RBs occupied by other subbands is equal to Mi.

[0314] Accordingly, step 304 may specifically be:

[0315] A first subband for data transmission of the first cell is directly determined based on the FDRA field indicator value.

[0316] In another possible implementation, the FDRA field may be used to indicate:

[0317] a reference subband index value for data transmission of a reference cell;

[0318] and offsets of starting RB index values ​​for data transmission of other cells among the multiple cells except the reference cell relative to the starting position and / or the maximum frequency domain position of the reference subband.

[0319] The method for determining the reference cell is similar to the method for determining the reference cell provided in the above embodiment and will not be repeated here.

[0320] Optionally, the granularity of the offset may be any one of the following: RB; RBG; a specified subband including a specified number of RBs.

[0321] The designated number of RBs may be the number of RBs included in the subband of the first cell, or other preset number of RBs, and the preset number of RBs may be 6.

[0322] At this point, the terminal can follow Figure 4 The method shown determines the frequency domain resources corresponding to the first cell.

[0323] For step 403, the subband parameter value is the subband granularity Mi,

[0324] Number of subbands

[0325] Furthermore, the number of RBs occupied by the first subband

[0326] like The number of RBs occupied by the last subband is:

[0327] Otherwise, the number of RBs occupied by the last subband is equal to Mi;

[0328] The number of RBs occupied by other subbands is equal to Mi.

[0329] Step 404 may specifically include the following steps:

[0330] The terminal determines an offset of a starting RB index value of data transmission of the first cell relative to the reference subband index value based on a bit value of a first bit interval corresponding to the first cell in the FDRA domain.

[0331] Furthermore, based on the reference subband index value indicated by the FDRA field and the offset corresponding to the first cell, a starting RB index value for data transmission of the first cell is determined.

[0332] In which, in the FDRA domain of the DCI, the reference bit interval corresponding to the reference cell may be located before other bit intervals; in the other bit intervals, the cell index value corresponding to the mth bit interval is less than the cell index value corresponding to the m+1th bit interval.

[0333] Or in the FDRA domain of the DCI, the reference bit interval corresponding to the reference cell may be located before other bit intervals; in the other bit intervals, the cell index value corresponding to the mth bit interval is greater than the cell index value corresponding to the m+1th bit interval; wherein m is a positive integer less than the number of cells scheduled by the DCI.

[0334] In an embodiment of the present disclosure, if the reference subband index value is within the subband index range of the first cell, for example, the reference subband index value is less than Ni, the first subband index value of data transmission of the first cell is determined to be equal to the reference subband index value. If the reference subband index value is outside the subband index range of the first cell, for example, the reference subband index value is greater than or equal to Ni, the first subband index value of the first cell is determined to be equal to a preset subband index value. The preset subband index value may be Ni-1.

[0335] Furthermore, the starting RB index value in the first subband is added to the number of RBs indicated by the offset corresponding to the first cell, and the obtained sum is added to the number of RBs N occupied by the first cell in the frequency domain resource range. RB,i Take the remainder and use the remainder as the starting RB index value for data transmission of the first cell.

[0336] Step 405 may specifically include any of the following:

[0337] Determining that the number of continuous RBs for data transmission of the first cell is equal to the number of RBs included in a reference subband of the reference cell; wherein the reference subband and the subband in which data transmission of the first cell is performed have the same subband index value;

[0338] It is determined that the number of continuous RBs for data transmission in the first cell is equal to the number of RBs included in the first subband.

[0339] That is, the number of continuous RBs for data transmission in the first cell is equal to the number of RBs included in the reference subband of the reference cell, where the reference subband and the subband for data transmission in the first cell have the same subband index value. Alternatively, the terminal may determine that the number of continuous RBs for data transmission in the first cell is equal to the number of RBs included in the first subband.

[0340] In the above embodiment, the FDRA domain adopts a joint indication method. The terminal can determine the frequency domain resources for data transmission of the first cell based on the number of subbands of the first cell and the FDRA domain indication value. On the basis of ensuring the flexibility of DCI scheduling, the DCI bit overhead is reduced, and the problem of reduced DCI transmission efficiency is effectively avoided, with high availability.

[0341] The second method is the separate indication method.

[0342] In one possible implementation, the DCI includes multiple FDRA fields; wherein the number of the FDRA fields included in the DCI is equal to the number of cells in the multiple cells;

[0343] The i-th FDRA field is used to indicate:

[0344] The subband index value of data transmission of the i-th scheduled cell among the multiple cells, i is a positive integer less than or equal to the number of cells.

[0345] At this time, the terminal can be based on Figure 3 The method shown determines the frequency domain resources of the first cell.

[0346] For step 303, the subband parameter value is the subband granularity Mi,

[0347] Number of subbands

[0348] Furthermore, the number of RBs occupied by the first subband

[0349] like The number of RBs occupied by the last subband is:

[0350] Otherwise, the number of RBs occupied by the last subband is equal to Mi;

[0351] The number of RBs occupied by other subbands is equal to Mi.

[0352] Accordingly, step 304 may specifically include:

[0353] First, a first FDRA domain corresponding to the first cell is determined among multiple FDRA domains included in the DCI.

[0354] Secondly, a first subband index value of the data transmission of the first cell is determined based on a bit value of the first FDRA field.

[0355] In the embodiments of the present disclosure, the first FDRA field is only used to indicate the first subband index value. The terminal can quickly determine the first subband index value according to the bit value of the first FDRA field.

[0356] At this time, the terminal determines that the frequency domain resource of the data transmission of the first cell is the RB range occupied by the first subband.

[0357] In the above embodiments, the FDRA field adopts a separate indication mode, and the terminal determines the frequency domain resource of the data transmission of the first cell based on the number of subbands of the first cell and the first FDRA field indication value corresponding to the first cell, thereby reducing DCI bit overhead on the basis of ensuring DCI scheduling flexibility, effectively avoiding the problem of reduced DCI transmission efficiency, and having high usability.

[0358] In addition to the above method, in the embodiments of the present disclosure, when the resource allocation mode is type1 and the granularity is RBG, the RIV indicated by the FDRA field is associated with the RBG start position and the number of continuous RBGs.

[0359] In addition, the granularity of RB or RBG can be determined based on the number of cells scheduled by the DCI when the resource allocation type is type1. The number of cells can be determined based on a signaling indication mode or a protocol agreement mode, which is not limited in the present disclosure.

[0360] In one possible implementation, if the DCI schedules data of one cell, the RIV indicates the resource in the granularity of RB, and if the number of cells scheduled by the DCI is greater than 1, the RIV indicates the resource in the granularity of RBG.

[0361] Alternatively, the granularity of RB or RBG can be determined based on the indication of the FDRA field in the DCI.

[0362] In one possible implementation, the first and / or second bits in the FDRA field of the DCI can be used to indicate one of the resource types in the granularity of RB or RBG.

[0363] For example, when the first bit of the FDRA field is not occupied, that is, the resource allocation mode is type1, the first bit in the FDRA field of the DCI can be used to indicate one of the resource types in the granularity of RB or RBG.

[0364] For another example, when the first bit of the FDRA field is occupied, that is, when the resource allocation mode is dynamic, the first bit of the FDRA field is used to indicate that the resource allocation type is dynamic+type1 or dynamic+type0. Among them, dynamic refers to the way in which the resource allocation type is dynamically switched between type0 and type1, dynamic+type1 means that after the base station indicates that the resource allocation type is dynamic through RRC signaling in advance, it indicates that the resource allocation type is typ1 through the FDRA field, and dynamic+type0 indicates that the resource allocation type is dynamic through RRC signaling in advance, and indicates that the resource allocation type is typ0 through the FDRA field. Type0 refers to indicating the data transmission resources of the cell through a bitmap, and type1 refers to indicating the data transmission resources of the cell through RIV.

[0365] In the present disclosure, the first bit is specifically used to indicate that the resource allocation type is dynamic+type 1. In this case, the second bit in the FDRA field of the DCI may be used to indicate that the resource type is one of the RB or RBG granularity.

[0366] In the above embodiment, the resource granularity during multi-carrier scheduling can be flexibly determined, which is simple to implement and has high availability.

[0367] Next, the multi-carrier scheduling method provided by the present disclosure will be introduced from the base station side.

[0368] The present disclosure provides a multi-carrier scheduling method, referring to Figure 5 As shown, Figure 5 This is a flow chart of a multi-carrier scheduling method according to an embodiment, which can be executed by a base station. The method may include the following steps:

[0369] In step 501, frequency domain resources for data transmission of each cell scheduled by downlink control information DCI are determined; wherein the DCI is used to schedule data transmission of multiple cells.

[0370] In the embodiment of the present disclosure, DCI used to schedule data transmission of multiple cells may include but is not limited to scheduling PDSCHs of multiple cells and / or PUSCHs of multiple cells, wherein each cell corresponds to one PDSCH and / or each cell corresponds to one PUSCH.

[0371] In step 502, the subband parameter value allocated to each cell within the frequency domain resource range is determined.

[0372] In the embodiment of the present disclosure, the frequency domain resource range of each cell may be the frequency domain range corresponding to the BWP of the cell, or the frequency domain range corresponding to the carrier where the cell is located, which is not limited in the present disclosure.

[0373] In a possible implementation, the subband parameter value may be any one of the following: the number of subbands; or the subband granularity.

[0374] In a possible implementation, the subband parameter values ​​of multiple cells may be the same or different, which is not limited in this disclosure.

[0375] In a possible implementation, the base station may send signaling indicating a subband parameter value of each cell to the terminal.

[0376] In another possible implementation, the base station may determine the subband parameter value of each cell based on protocol agreement.

[0377] In step 503, a bit value of a frequency domain resource allocation FDRA field in the DCI is determined based on at least the frequency domain resources and the subband parameter value of one cell among the multiple cells.

[0378] In step 504, the DCI is sent to the terminal.

[0379] In the above embodiment, on the basis of ensuring the flexibility of DCI scheduling, the DCI bit overhead is reduced, the problem of reduced DCI transmission efficiency is effectively avoided, and the availability is high.

[0380] The solution provided by the present disclosure is further described below with respect to different sub-band parameter values.

[0381] In some optional embodiments, the subband parameter value is the number of subbands Ni, and the FDRA field may be indicated in the following manner:

[0382] The first method is the joint instruction method.

[0383] In one possible implementation, the FDRA field may be used to indicate:

[0384] A reference subband index value for data transmission of a reference cell; wherein the reference cell is a cell among the multiple cells that is different from the first cell.

[0385] In the embodiment of the present disclosure, the reference cell may be indicated by the base station through signaling, or the reference cell may be determined by protocol agreement.

[0386] In a possible implementation, a cell receiving DCI among multiple cells may be used as the reference cell.

[0387] In another possible implementation, the cell with the largest number of RBs occupied by the configured BWP among multiple cells may be used as the reference cell.

[0388] In another possible implementation, the cell with the least number of RBs occupied by the configured BWP among multiple cells may be used as the reference cell.

[0389] In another possible implementation, the cell with the largest corresponding cell index number among the multiple cells may be used as the reference cell.

[0390] In another possible implementation, the cell with the smallest corresponding cell index number among the multiple cells may be used as the reference cell.

[0391] The above description is merely an exemplary description. In actual applications, any method of determining a reference cell among multiple cells should fall within the scope of protection of the present disclosure.

[0392] For the base station, it may first determine the RB range occupied by each subband of the first cell among the multiple cells:

[0393] The subband parameter value is the number of subbands Ni, and the RB ranges occupied by each subband are: Among them, N RB,i It refers to the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell.

[0394] Furthermore, the base station may determine the first subband index value for data transmission of the first cell based on the reference subband value of the reference cell. Specifically, if the reference subband index value is in the range [0, (N i -1)], the first subband index value is equal to the reference subband index value indicated by the FDRA field. If the reference subband index value is outside the subband index range of the first cell, it is determined that the first subband index value for data transmission of the first cell is equal to the preset subband index value.

[0395] The base station determines that the frequency domain resources for data transmission of the first cell are the RB range occupied by the first subband.

[0396] After determining the frequency domain resources for data transmission in other cells based on the reference cell, the base station can determine the bit value of the FDRA field based on the reference subband value. Further, the base station sends the DCI to the terminal so that the terminal can determine the frequency domain resources for data transmission in each of the multiple cells scheduled by the DCI.

[0397] In another possible implementation, when multiple cells have the same number of subbands, the FDRA field may be used to indicate:

[0398] The subband index value for data transmission of any one of the multiple cells is equal.

[0399] At this time, the number of subbands in the first cell is Ni=N, and the number of subbands in multiple cells is N. The value of N can be determined by protocol agreement or by a signaling instruction sent by the base station, which is not limited in this disclosure.

[0400] Accordingly, the subband index value for data transmission in each of the multiple cells can be equal. The FDRA field can simply indicate the subband index value of any one of the multiple cells. That is, after determining the subband index value for data transmission in any one of the multiple cells, the base station can determine the bit value of the FDRA field based on the subband index value, thereby sending DCI to the terminal, so that the terminal can determine the frequency domain resources for data transmission in each of the multiple cells scheduled by the DCI.

[0401] In another possible implementation, the FDRA field may be used to indicate:

[0402] a reference subband index value for data transmission of a reference cell;

[0403] and offsets of starting RB index values ​​for data transmission of other cells among the multiple cells except the reference cell relative to the starting position and / or the maximum frequency domain position of the reference subband.

[0404] The method for determining the reference cell is similar to the method for determining the reference cell provided in the above embodiment and will not be repeated here.

[0405] Optionally, the granularity of the offset may be any one of the following: RB; RBG; a specified subband including a specified number of RBs.

[0406] The designated number of RBs may be the number of RBs included in the subband of the first cell, or other preset number of RBs, and the preset number of RBs may be 6.

[0407] The base station may determine the bit value of the reference bit interval in the FDRA domain based on the reference subband value of the reference cell. In addition, the base station may determine the bit value of the first bit interval corresponding to the first cell based on the offset corresponding to the first cell.

[0408] In which, in the FDRA domain of the DCI, the reference bit interval corresponding to the reference cell may be located before other bit intervals; in the other bit intervals, the cell index value corresponding to the mth bit interval is less than the cell index value corresponding to the m+1th bit interval.

[0409] Or in the FDRA domain of the DCI, the reference bit interval corresponding to the reference cell may be located before other bit intervals; in the other bit intervals, the cell index value corresponding to the mth bit interval is greater than the cell index value corresponding to the m+1th bit interval; wherein m is a positive integer less than the number of cells scheduled by the DCI.

[0410] The manner in which the base station determines the starting RB index value and the number of continuous RBs of the first cell is similar to that on the terminal side and will not be repeated here.

[0411] The second method is the separate indication method.

[0412] In one possible implementation, the DCI includes multiple FDRA fields; wherein the number of the FDRA fields included in the DCI is equal to the number of cells in the multiple cells;

[0413] The i-th FDRA field is used to indicate:

[0414] The subband index value of data transmission of the i-th scheduled cell among the multiple cells, i is a positive integer less than or equal to the number of cells.

[0415] The cell index value of the i-th scheduled cell is smaller than the cell index value of the i+1-th scheduled cell. Alternatively, the cell index value of the i-th scheduled cell is larger than the cell index value of the i+1-th scheduled cell.

[0416] After determining the first subband index value, the base station may determine a bit value of the first FDRA field corresponding to the first cell based on the first subband index value.

[0417] For the base station side, when the subband parameter value is the subband granularity Mi, the method of determining the bit value of the FDRA field is similar to that when the subband parameter value is the subband number Ni, and is not repeated here.

[0418] In the above embodiment, the DCI bit overhead can be reduced on the basis of ensuring the flexibility of DCI scheduling, thereby effectively avoiding the problem of reduced DCI transmission efficiency and achieving high availability.

[0419] In addition to the above method, in an embodiment of the present disclosure, when the DCI for scheduling data transmission of multiple cells is configured with resource type 1 and resource allocation mode with RBG as granularity, the RIV indicated by the FDRA field is associated with the RBG starting position and the number of continuous RBGs.

[0420] In addition, the granularity of the resource can be determined based on the number of cells scheduled by the DCI. The number of cells can be determined based on a signaling indication or a protocol agreement, and the disclosure does not limit the number of cells.

[0421] In one possible implementation, if the DCI schedules data of one cell, the RIV indicates the resource in RB granularity, and if the number of cells scheduled by the DCI is greater than 1, the RIV indicates the resource in RBG granularity.

[0422] Alternatively, the granularity of the resource can be determined based on the indication of the FDRA field in the DCI.

[0423] In one possible implementation, the first and / or second bits of the FDRA field of the DCI sent by the base station can be used to indicate one of the RB or RBG granularity of the resource type.

[0424] For example, in the case of the first bit of the FDRA field not being occupied, i.e., the resource allocation type is type1, the first bit of the FDRA field of the DCI can be used to indicate one of the RB or RBG granularity of the resource type.

[0425] For another example, in the case of the first bit of the FDRA field being occupied, i.e., the resource allocation type is dynamic, the first bit of the FDRA field is used to indicate that the resource allocation type is dynamic+type1 or dynamic+type0. The dynamic refers to a dynamic switching between type0 and type1, dynamic+type1 refers to that the base station indicates the resource allocation type as type1 through the FDRA field after indicating the resource allocation type as dynamic through RRC signaling, and dynamic+type0 refers to that the base station indicates the resource allocation type as type0 through the FDRA field after indicating the resource allocation type as dynamic through RRC signaling.

[0426] In the disclosure, the first bit is specifically used to indicate that the resource allocation type is dynamic+type1. At this time, the second bit of the FDRA field of the DCI can be used to indicate one of the RB or RBG granularity of the resource type.

[0427] The resource determination and multi-carrier scheduling method provided by the disclosure are further illustrated as follows.

[0428] In embodiment 1, it is assumed that the terminal is a Rel-18 or later version terminal, and the terminal receives DCI for multi-cell scheduling, and based on the indication information corresponding to the DCI, receives PDSCHs of multiple cells or transmits PUSCHs of multiple cells.

[0429] This embodiment considers that the frequency domain resource information of different scheduled cells indicated by the FDRA field of multi-cell DCI (i.e., DCI used to schedule data transmission of multiple cells, subsequently represented by mcDCI) is based on the type 1 resource type scenario, and by designing the corresponding FDRA field indication method, a single DCI is realized to indicate the frequency domain resource information of multiple cells PDSCH / PUSCH.

[0430] A possible implementation method is to determine a reference cell in a multi-cell scheduling scenario. The reference cell can be determined based on a signaling indication, exemplarily indicating a cell index value of the reference cell; the reference cell can also be determined in a predefined manner, exemplarily, the cell where the multi-cell DCI is received is used as the reference cell, or the cell corresponding to the largest number of RBs occupied by the BWP configured in the scheduled cell is used as the reference cell, or the cell corresponding to the smallest number of RBs occupied by the BWP configured in the scheduled cell is used as the reference cell, or the cell corresponding to the smallest (or largest) cell index value among the scheduling cell and the scheduled cell is used as the reference cell. The present invention is not limited to this.

[0431] For the scheduled cell i (i.e., the first cell), the terminal determines the number of subbands Ni allocated within the (frequency domain) resource range, where the number of RBs occupied by the resource range is NRB,i:

[0432] In one possible implementation manner, the resource range may be the frequency domain resources occupied by the BWP configured for the scheduled cell i, or the frequency domain resources corresponding to the carrier where the scheduled cell i is located, and the present invention does not impose any limitation on this.

[0433] In one possible implementation manner, the starting RB position of the first subband of the scheduled cell i can be the BWP starting position, or the RB starting position corresponding to the carrier where the scheduled cell i is located, or the common frequency domain reference point Point A agreed in the protocol. The present invention does not limit this.

[0434] In a possible implementation manner, the number of subbands corresponding to all scheduled cells may be the same, for example, Ni=N, or may be different, and the present invention does not impose any limitation on this.

[0435] In one possible implementation, Ni and / or N may be determined in a predefined manner, for example, Ni is equal to the number of RBGs configured for scheduled cell i. Alternatively, Ni and / or N may be determined via signaling indication; illustratively, higher-layer signaling predefines a set of values ​​for Ni and / or N, or predefines a combination of Ni values ​​corresponding to multiple scheduled cells, and the DCI indicates one or more of the value sets or value combinations.

[0436] In a possible implementation, within the resource range configured for the scheduled cell i, the N i The frequency domain range corresponding to each sub-band can be determined based on the following method:

[0437]

[0438] Based on the above-defined subband rules, the terminal receives the mc DCI and determines the frequency domain resources for data transmission on the scheduled cell i through the subband index indicated by the mc DCI FDRA field:

[0439] In a possible implementation manner, the mc DCI FDRA field indicates the corresponding subband index in a separate manner, and the frequency domain resources corresponding to different scheduled cells are indicated by different bits. For the scheduled cell i, its transmission subband is determined by the i-th bit interval, and the number of bits occupied by the i-th bit interval is determined based on the subband number Ni. Multiple scheduled cells correspond one-to-one to multiple bit intervals, and the multiple scheduled cells correspond one-to-one based on the order of cell ID numbers from small to large (or from large to small), or the multiple scheduled cells correspond one-to-one based on the cell where the DCI is received, and the index value numbers of other scheduled cells in an ascending order (or from large to small).

[0440] In one possible implementation, the mc DCI FDRA field indicates the corresponding subband index in a shared manner, and the number of subbands corresponding to different cells is the same (all equal to N), then the subband indexes corresponding to different scheduled cells are the same, all equal to the subband index indicated by the mc DCI FDRA field, and the number of bits occupied by the mc DCI FDRA field is equal to

[0441] In one possible implementation, the mc DCI FDRA field indicates the corresponding subband index in a shared manner, and the number of subbands corresponding to different cells is not exactly the same. The subband index of the scheduled cell i is determined based on the reference cell:

[0442] 1.1. The mc DCI FDRA field indicates the subband index of reference cell j. The number of bits occupied by the corresponding FDRA field is equal to

[0443] 1.2. If the subband index indicated by the mc DCI FDRA field is less than or equal to N RB,i -1, the subband index corresponding to data transmission in cell i is equal to the subband index of reference cell j;

[0444] 1.3. If the subband index indicated by the mc DCI FDRA field is different from N RB,i -1, the subband index corresponding to the data transmission of cell i is equal to N RB,i -1.

[0445] In one possible implementation, the mc DCI FDRA field indicates the corresponding subband index in a shared manner, and the subband index of the scheduled cell i is determined based on the reference cell and the offset relative to the reference cell subband index:

[0446] The offset of the scheduled cell i relative to the subband index of the reference cell can be measured in granularity with RB, RBG configured for the reference cell or the first subband. The first subband can be equal to the subband corresponding to the scheduled cell i, or the number of RBs can be preset as the granularity, for example, 6 RBs constitute a first subband.

[0447] The mc DCI FDRA field consists of two parts: the first bits and additional bits. The first bits indicate the reference cell subband index, and the additional bits indicate the RB / RBG / first subband offset of other scheduled cells relative to the reference cell subband index.

[0448] The number of bits occupied by the first bits of the corresponding FDRA field is equal to Wherein, j is a reference cell, additional bits consists of multiple second bits intervals, and the other scheduled cells except the reference cell correspond one-to-one with the second bits intervals, and the corresponding order is based on the numbers of the other scheduled cells from small to large (one-to-one correspondence from large to small);

[0449] The subband index corresponding to the data transmission of the scheduled cell i is determined by the subcarrier index defined by the reference cell and the RB / RBG / first subband offset indicated by the additional bits. The specific determination method is as follows:

[0450] Determine a first subband index of the scheduled cell i, where the first subband index is determined based on the subband index of the reference cell, in the same manner as described in 1.2 and 1.3;

[0451] The RB starting position index corresponding to the first subband index is added to the number of RBs included in the RB / RBG / subband offset indicated by the second bits corresponding to the scheduled cell i, and the remainder N is taken from the number of RBs included in the frequency domain range. RB,i , determining a starting position of an RB for data transmission by the scheduled cell i within the frequency domain;

[0452] Determine the number of RBs that the scheduled cell i continues to perform data transmission within the frequency domain: In one possible implementation, the above-mentioned number of continuous RBs is the same as the number of continuous RBs of the subband configured by the reference cell; or, the above-mentioned number of continuous RBs is the same as the number of continuous RBs of the first subband determined for the scheduled cell i; or, the above-mentioned number of continuous RBs is equal to

[0453] For example Figure 6 As shown, taking the mc DCI FDRA field consisting of the first bits and additional bits, N=4, and the number of RBs for which the scheduled cell i performs data transmission within the frequency domain range being equal to the number of RBs for the first subband as an example, one specific implementation method is described:

[0454] Cell #0 is the reference cell, and the reference bit interval precedes the other bit intervals. Cell #1 and cell #2 correspond to bit interval #1 and bit interval #2, respectively. The reference subband index value indicated by the reference bit interval is 1, and the offset is in RB granularity. Cell #1 determines that the first subband index value is also 1. The starting RB index value of the first subband index value is added to the offset to determine the starting RB index value for cell #1 data transmission. The number of continuous RBs for cell #1 data transmission is the same as the number of RBs included in subband #1 of the reference cell.

[0455] This embodiment uses subband as the granularity to determine the FDRA resources of different scheduled cell data, which can effectively reduce the multi-cell DCI bits overhead, avoid excessively high multi-cell DCI transmission code rate, loss of DCI transmission performance, and thus reduction of cell scheduling performance.

[0456] In Example 2, as described in Example 1, it is assumed that the terminal is a Rel-18 or later version terminal, and the terminal receives DCI for multi-cell scheduling, and based on the indication information corresponding to the DCI, receives PDSCHs of multiple cells or transmits PUSCHs of multiple cells.

[0457] This embodiment considers that the frequency domain resource information of different scheduled cells indicated by the FDRA field of the multi-cell DCI is based on the type 1 resource type scenario, and realizes the indication of the multi-cell PDSCH / PUSCH frequency domain resource information by a single DCI by designing the corresponding FDRA field indication method.

[0458] In one possible implementation, a reference cell in a multi-cell scheduling scenario is determined, where the reference cell can be determined based on a signaling indication, exemplarily indicating a cell ID of the reference cell; the reference cell can also be determined in a predefined manner, exemplarily by using the cell where the multi-cell DCI is received as the reference cell, or using the cell corresponding to the largest number of RBs occupied by the BWP configured in the scheduled cell as the reference cell, or using the cell corresponding to the smallest number of RBs occupied by the BWP configured in the scheduled cell as the reference cell, or using the cell corresponding to the smallest (or largest) cell index value among the scheduling cell and the scheduled cell as the reference cell. The present invention is not limited to this.

[0459] For the scheduled cell i, the terminal determines the number of RBs Mi occupied by the allocated subband within the (frequency domain) resource range, where the number of RBs occupied by the resource range is NRB,i.

[0460] In one possible implementation manner, the resource range may be the frequency domain resources occupied by the BWP configured for the scheduled cell i, or the frequency domain resources corresponding to the carrier where the scheduled cell i is located, and the present invention does not impose any limitation on this.

[0461] In one possible implementation manner, the starting RB position of the first subband of the scheduled cell i may be a BWP starting position, or an RB starting position corresponding to the carrier where the scheduled cell i is located, or Point A, which is not limited in the present invention.

[0462] In a possible implementation manner, the number of RBs occupied by the subbands corresponding to all scheduled cells may be the same, for example, Mi=M, or may be different, and the present invention does not impose any limitation on this.

[0463] In one possible implementation, Mi and / or M may be determined in a predefined manner, for example, Mi is equal to the number of RBs occupied by RBGs configured for scheduled cell i. Alternatively, Mi and / or M may be determined via signaling indication; illustratively, higher-layer signaling predefines a set of values ​​for Mi and / or M, or predefines a combination of Mi values ​​corresponding to multiple scheduled cells, and the DCI indicates one or more of the value sets or value combinations.

[0464] In one possible implementation, within the resource range configured for the scheduled cell i, the number of subbands and the corresponding subband frequency range determined based on Mi are similar to the RBG method:

[0465] In is the starting position of RB, the number of continuous RBs is NRB, within the frequency domain corresponding to i, based on the subband granularity Mi, the number of subbands configured by scheduled cell i is N i equal: in:

[0466] The number of RBs occupied by the first subband is:

[0467] like The number of RBs occupied by the last subband is: Otherwise, the number of RBs occupied by the last subband is equal to Mi;

[0468] The number of RBs occupied by other subbands is equal to Mi.

[0469] Based on the above-defined subband rules, the terminal receives the mc DCI and determines the frequency domain resources for the terminal to perform data transmission on the scheduled cell i through the subband index indicated by the mc DCI FDRA field. The mc DCI FDRA indicates the frequency domain resources for data transmission in the scheduled cell i in a separate or shared manner. The specific indication method is the same as in Example 1 and is not repeated here.

[0470] This embodiment provides another way to define subbands, and uses the subband definition as the granularity to determine the FDRA resources for different scheduled cell data, which can effectively reduce the multi-cell DCI bits overhead, avoid excessively high multi-cell DCI transmission code rates, and loss of DCI transmission performance, thereby reducing cell scheduling performance.

[0471] In Example 3, as described in Example 1, it is assumed that the terminal is a Rel-18 or later version terminal, and the terminal receives DCI for multi-cell scheduling, and based on the indication information corresponding to the DCI, receives PDSCHs of multiple cells or transmits PUSCHs of multiple cells.

[0472] This embodiment considers that the frequency domain resource information of different scheduled cells indicated by the FDRA field of the multi-cell DCI is based on the type 1 resource type scenario, and realizes the indication of the multi-cell PDSCH / PUSCH frequency domain resource information by a single DCI by designing the corresponding FDRA field indication method.

[0473] In one possible implementation, mc DCI FDRA adopts:

[0474] Mode 1, DCI format 1_2 corresponds to the type 1 resource allocation mode with RBG as the resource granularity. The mc DCIFDRA field indicates that the RIV is associated with the RBG starting position and the number of continuous RBGs.

[0475] Mode 2: DCI format 1_1 corresponds to the type 1 resource allocation mode with RB as the resource granularity. The mc DCIFDRA field indicates that the RIV is associated with the RB starting position and the number of continuous RBs.

[0476] Under the condition that the mc DCI FDRA domain adopts type 1 resource allocation type, whether to adopt mode 1 or mode 2 can be determined by a predetermined method. For example, if the number of cells scheduled simultaneously by mc DCI is less than or equal to P, the RIV indicates that the resource is in RB granularity; if the number of cells scheduled simultaneously by mc DCI is greater than P, the RIV indicates that the resource is in RBG granularity.

[0477] P can be determined in a predefined manner, for example, P=1. P can also be determined by signaling, for example, RRC signaling defines multiple candidate values ​​of P, and MAC CE / DCI indicates the specific value.

[0478] When the mc DCI FDRA field adopts type 1 resource allocation type, whether mode 1 or mode 2 is adopted can be determined by signaling indication. For example, the first and / or second bit of the mc DCI FDRA field indicates that the resource type is one of mode 1 or mode 2.

[0479] This embodiment uses RBG as the granularity and RIV to indicate the FDRA resources for different scheduled cell data. This effectively reduces the mc DCI bits overhead, preventing excessively high mc DCI transmission code rates, which can degrade DCI transmission performance and thus cell scheduling performance. Furthermore, based on the number of cells scheduled by mc DCI, different FDRA resource indication methods can be flexibly selected to reduce the mcDCI bit overhead.

[0480] Corresponding to the aforementioned embodiment of the method for realizing application functions, the present disclosure also provides an embodiment of an apparatus for realizing application functions.

[0481] Reference Figure 7 , Figure 7 This is a block diagram of a resource determination device according to an exemplary embodiment. The device is applied to a terminal and includes:

[0482] The receiving module 701 is configured to receive downlink control information DCI sent by a base station; wherein the DCI is used to schedule data transmission of multiple cells;

[0483] A first determining module 702 is configured to determine a subband parameter value allocated to a first cell within a frequency domain resource range; wherein the first cell is any one of the multiple cells;

[0484] The second determining module 703 is configured to determine the frequency domain resources for data transmission of the first cell based on the frequency domain resource allocation FDRA field indication value in the DCI and the subband parameter value of the first cell.

[0485] Reference Figure 8 , Figure 8 This is a block diagram of a multi-carrier scheduling device according to an exemplary embodiment. The device is applied to a base station and includes:

[0486] The third determining module 801 is configured to determine frequency domain resources for data transmission of each cell scheduled by downlink control information DCI, wherein the DCI is used to schedule data transmission of multiple cells;

[0487] The fourth determining module 802 is configured to determine a subband parameter value allocated to each cell within a frequency domain resource range;

[0488] A fifth determining module 803 is configured to determine a bit value included in the frequency domain resource allocation FDRA field in the DCI based at least on the frequency domain resources and the subband parameter value of one cell among the multiple cells;

[0489] The sending module 804 is configured to send the DCI to the terminal.

[0490] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to the partial description of the method embodiments. The device embodiments described above are merely illustrative, wherein the units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the disclosed solution. A person of ordinary skill in the art can understand and implement it without paying any creative work.

[0491] Correspondingly, the present disclosure also provides a computer-readable storage medium, which stores a computer program, and the computer program is used to execute any of the above-mentioned methods for the base station side.

[0492] Accordingly, the present disclosure further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program is used to execute any of the above-mentioned resource determination methods.

[0493] Accordingly, the present disclosure also provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program is used to execute any of the multi-carrier scheduling methods described above.

[0494] Accordingly, the present disclosure further provides a resource determination device, comprising:

[0495] processor;

[0496] a memory for storing processor-executable instructions;

[0497] The processor is configured to execute any of the above-mentioned resource determination methods.

[0498] Figure 9 1 is a block diagram of a resource determination apparatus 900 according to an exemplary embodiment. For example, the apparatus 900 may be a mobile phone, tablet computer, e-book reader, multimedia player, wearable device, in-vehicle user equipment, iPad, smart TV, or other terminal.

[0499] Reference Figure 9 , the apparatus 900 may include one or more of the following components: a processing component 902 , a memory 904 , a power component 906 , a multimedia component 908 , an audio component 910 , an input / output (I / O) interface 912 , a sensor component 916 , and a communication component 918 .

[0500] The processing component 902 generally controls the overall operation of the device 900, such as operations associated with display, phone calls, random access to data, camera operation, and recording operations. The processing component 902 may include one or more processors 920 to execute instructions to complete all or part of the steps of the resource determination method described above. In addition, the processing component 902 may include one or more modules to facilitate interaction between the processing component 902 and other components. For example, the processing component 902 may include a multimedia module to facilitate interaction between the multimedia component 908 and the processing component 902. For another example, the processing component 902 may read executable instructions from a memory to implement the steps of a resource determination method provided in each of the above embodiments.

[0501] The memory 904 is configured to store various types of data to support the operations of the device 900. Examples of such data include instructions for any application or method operating on the device 900, contact data, phone book data, messages, pictures, videos, etc. The memory 904 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0502] The power supply component 906 provides power to the various components of the device 900. The power supply component 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device 900.

[0503] The multimedia component 908 includes a display screen that provides an output interface between the device 900 and the user. In some embodiments, the multimedia component 908 includes a front-facing camera and / or a rear-facing camera. When the device 900 is in an operating mode, such as a capture mode or a video mode, the front-facing camera and / or the rear-facing camera can receive external multimedia data. Each of the front-facing camera and the rear-facing camera can have a fixed optical lens system or have a variable focal length and optical zoom capability.

[0504] The audio component 910 is configured to output and / or input audio signals. For example, the audio component 910 includes a microphone (MIC), which is configured to receive external audio signals when the device 900 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 904 or transmitted via the communication component 918. In some embodiments, the audio component 910 also includes a speaker for outputting audio signals.

[0505] I / O interface 912 provides an interface between processing component 902 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0506] The sensor assembly 916 includes one or more sensors for providing various aspects of the status assessment of the device 900. For example, the sensor assembly 916 can detect the open / closed state of the device 900, the relative positioning of components, such as the display and keypad of the device 900. The sensor assembly 916 can also detect changes in the position of the device 900 or a component of the device 900, the presence or absence of user contact with the device 900, the orientation or acceleration / deceleration of the device 900, and temperature changes of the device 900. The sensor assembly 916 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 916 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 916 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0507] The communication component 918 is configured to facilitate wired or wireless communication between the device 900 and other devices. The device 900 can access a wireless network based on a communication standard, such as Wi-Fi, 2G, 3G, 4G, 5G or 6G, or a combination thereof. In an exemplary embodiment, the communication component 918 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 918 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0508] In an exemplary embodiment, the apparatus 900 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components, for executing any of the resource determination methods described above on the terminal side.

[0509] In an exemplary embodiment, a non-transitory machine-readable storage medium including instructions is also provided, such as a memory 904 including instructions. The instructions can be executed by the processor 920 of the apparatus 900 to perform the resource determination method described above. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

[0510] Accordingly, the present disclosure further provides a multi-carrier scheduling apparatus, comprising:

[0511] processor;

[0512] a memory for storing processor-executable instructions;

[0513] The processor is configured to execute any of the multi-carrier scheduling methods described above.

[0514] like Figure 10 As shown, Figure 10 FIG1 is a schematic diagram showing a multi-carrier scheduling apparatus 1000 according to an exemplary embodiment. The apparatus 1000 may be provided as a base station. Figure 10 The device 1000 includes a processing component 1022, a wireless transmission / reception component 1024, an antenna component 1026, and a signal processing part specific to the wireless interface. The processing component 1022 may further include at least one processor.

[0515] One of the processors in the processing component 1022 may be configured to execute any of the above-mentioned multi-carrier scheduling methods.

[0516] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0517] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A resource determination method, characterized in that: The method is executed by a terminal and includes: Receive downlink control information (DCI) sent by a base station; wherein the DCI is used to schedule data transmission of multiple cells; Determine a subband parameter value allocated to a first cell within a frequency domain resource range; wherein the first cell is any one of the multiple cells; Determining frequency domain resources for data transmission of the first cell based on the frequency domain resource allocation FDRA field indication value in the DCI and the subband parameter value of the first cell; Wherein, the sub-band parameter value is the sub-band granularity; The determining, based on the frequency domain resource allocation FDRA field indication value in the DCI and the subband parameter value of the first cell, frequency domain resources for data transmission of the first cell includes: Determining, based on the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell and the subband parameter value of the first cell, an RB range occupied by each subband of the first cell; Determining a first subband index value for data transmission of the first cell based on the FDRA field indicator value; Determine that the frequency domain resources for data transmission of the first cell are a range of RBs occupied by the first subband; or The determining, based on the frequency domain resource allocation FDRA field indication value in the DCI and the subband parameter value of the first cell, frequency domain resources for data transmission of the first cell includes: Determining, based on the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell and the subband parameter value of the first cell, an RB range occupied by each subband of the first cell; Determining a starting RB index value for data transmission of the first cell based on the FDRA field indicator value; Determine a continuous number of RBs for data transmission in the first cell.

2. The method according to claim 1, characterized in that The method further comprises any of the following: Determining the subband parameter value of the first cell based on the signaling indication sent by the base station; Based on protocol agreement, determine the subband parameter value of the first cell.

3. The method according to claim 1, characterized in that The number of subbands of the multiple cells is different, and the FDRA field is used to indicate: A reference subband index value for data transmission of a reference cell; wherein the reference cell is a cell among the multiple cells that is different from the first cell.

4. The method according to claim 3, characterized in that The determining, based on the FDRA field indicator value, a first subband index value for data transmission of the first cell includes: Determining the reference subband index value based on the bit value of the FDRA field; When the reference subband index value is within the subband index range of the first cell, determine that a first subband index value for data transmission of the first cell is equal to the reference subband index value; In a case where the reference subband index value is outside the subband index range of the first cell, it is determined that the first subband index value of data transmission of the first cell is equal to a preset subband index value.

5. The method according to claim 1, wherein The DCI includes multiple FDRA domains; wherein the number of FDRA domains included in the DCI is equal to the number of cells in the multiple cells; The i-th FDRA field is used to indicate: The subband index value of data transmission of the i-th scheduled cell among the multiple cells, i is a positive integer less than or equal to the number of cells.

6. The method according to claim 5, characterized in that The cell index value of the i-th scheduled cell is less than the cell index value of the i+1-th scheduled cell; or The cell index value of the i-th scheduled cell is greater than the cell index value of the (i+1)-th scheduled cell.

7. The method according to claim 5, characterized in that The determining, based on the FDRA field indicator value, a first subband index value for data transmission of the first cell includes: Determining, among a plurality of FDRA domains included in the DCI, a first FDRA domain corresponding to the first cell; A first subband index value for data transmission of the first cell is determined based on a bit value of the first FDRA field.

8. The method according to claim 1, characterized in that The number of subbands of the multiple cells is the same, and the FDRA field is used to indicate: The subband index value for data transmission of any one of the multiple cells is equal.

9. The method according to claim 1, characterized in that The FDRA field is used to indicate: a reference subband index value for data transmission of a reference cell; wherein the reference cell is a cell among the multiple cells that is different from the first cell; and offsets of starting RB index values ​​for data transmission of other cells among the multiple cells except the reference cell relative to the starting position and / or the maximum frequency domain position of the reference subband.

10. The method according to claim 9, characterized in that The granularity of the offset is any of the following: RB; RBG; Includes a specified subband with a specified number of RBs.

11. The method according to claim 9, characterized in that The determining, based on the frequency domain resource allocation FDRA field indication value in the DCI, a starting RB index value for data transmission of the first cell includes: Determining the offset corresponding to the first cell based on a bit value of a first bit interval corresponding to the first cell in the FDRA field; Based on the reference subband index value and the offset corresponding to the first cell, a starting RB index value for data transmission of the first cell is determined.

12. The method according to claim 11, characterized in that In the FDRA field, the reference bit interval corresponding to the reference cell is located before other bit intervals; In the other bit intervals, the cell index value corresponding to the mth bit interval is smaller than the cell index value corresponding to the (m+1)th bit interval; or The cell index value corresponding to the mth bit interval is greater than the cell index value corresponding to the m+1th bit interval; wherein m is a positive integer less than the number of cells scheduled by the DCI.

13. The method according to claim 11, characterized in that The determining, based on the reference subband index value and the offset corresponding to the first cell, a starting RB index value for data transmission of the first cell includes: When the reference subband index value is within the subband index range of the first cell, determine that a first subband index value for data transmission of the first cell is equal to the reference subband index value; When the reference subband index value is outside the subband index range of the first cell, determining that a first subband index value for data transmission of the first cell is equal to a preset subband index value; Based on the starting RB index value of the first subband and the offset corresponding to the first cell, a starting RB index value for data transmission of the first cell is determined.

14. The method according to claim 13, characterized in that The determining the number of continuous RBs for data transmission of the first cell includes any one of the following: Determine that the number of continuous RBs for data transmission of the first cell is equal to the number of RBs included in the reference subband of the reference cell; It is determined that the number of continuous RBs for data transmission in the first cell is equal to the number of RBs included in the first subband.

15. A multi-carrier scheduling method, characterized in that: The method is executed by a base station and includes: Determining frequency domain resources for data transmission of each cell scheduled by downlink control information DCI, wherein the DCI is used to schedule data transmission of multiple cells; Determining a subband parameter value allocated to each cell within a frequency domain resource range; Determining a bit value of a frequency domain resource allocation FDRA field in the DCI based at least on the frequency domain resources and the subband parameter value of one of the multiple cells; and sending the DCI to a terminal; Wherein, the sub-band parameter value is the sub-band granularity; The determining of frequency domain resources for data transmission of each cell scheduled by downlink control information DCI includes: Determining, based on the number of resource blocks (RBs) occupied by a frequency domain resource range of a first cell and the subband parameter value of the first cell, an RB range occupied by each subband of the first cell; wherein the first cell is any one of the multiple cells; determining a first subband index value for data transmission of the first cell; Determine that the frequency domain resources for data transmission of the first cell are a range of RBs occupied by the first subband; or The determining of frequency domain resources for data transmission of each cell scheduled by downlink control information DCI includes: Determine a starting RB index value for data transmission of a first cell; wherein the first cell is any one of the multiple cells; Determine a continuous number of RBs for data transmission in the first cell.

16. The method according to claim 15, characterized in that The method further comprises any of the following: Sending signaling for indicating the subband parameter value of each cell to the terminal; Based on protocol agreement, the subband parameter value of each cell is determined.

17. The method according to claim 15, characterized in that The determining a first subband index value for data transmission of the first cell includes: When a reference subband index value for data transmission of a reference cell is within a subband index range of the first cell, determining that the first subband index value is equal to the reference subband index value; wherein the reference cell is a cell different from the first cell among the multiple cells; In a case where the reference subband index value is outside the subband index range of the first cell, it is determined that the first subband index value of data transmission of the first cell is equal to a preset subband index value.

18. The method according to claim 17, characterized in that The number of subbands of the multiple cells is different, and the FDRA field is used to indicate: The reference subband index value.

19. The method according to claim 15, characterized in that The DCI includes multiple FDRA domains; wherein the number of FDRA domains included in the DCI is equal to the number of cells in the multiple cells; The i-th FDRA field is used to indicate: The subband index value of data transmission of the i-th scheduled cell among the multiple cells, i is a positive integer less than or equal to the number of cells.

20. The method according to claim 19, characterized in that The cell index value of the i-th scheduled cell is less than the cell index value of the i+1-th scheduled cell; or The cell index value of the i-th scheduled cell is greater than the cell index value of the (i+1)-th scheduled cell.

21. The method according to claim 19, wherein The determining, based at least on the frequency domain resources and the subband parameter value of one cell among the multiple cells, a bit value included in the frequency domain resource allocation FDRA field in the DCI, includes: Determining, among a plurality of FDRA domains included in the DCI, a first FDRA domain corresponding to the first cell; Based on the first subband index value, a bit value of the FDRA field corresponding to the first cell is determined.

22. The method according to claim 15, wherein The number of subbands of the multiple cells is the same, and the FDRA field is used to indicate: The subband index value for data transmission of any one of the multiple cells is equal.

23. The method according to claim 15, characterized in that The determining a starting RB index value for data transmission of the first cell includes: Based on the reference subband index value of the reference cell and the offset of the starting RB index value of the data transmission of the first cell relative to the starting position and / or the maximum frequency domain position of the reference subband, determine the starting RB index value of the data transmission of the first cell; wherein, the reference cell is a cell among the multiple cells that is different from the first cell.

24. The method according to claim 23, wherein The determining, based on the reference subband index value of the reference cell and the offset of the starting RB index value of the data transmission of the first cell relative to the starting position and / or the maximum frequency domain position of the reference subband, the starting RB index value of the data transmission of the first cell includes: When the reference subband index value is within the subband index range of the first cell, determine that a first subband index value for data transmission of the first cell is equal to the reference subband index value; When the reference subband index value is outside the subband index range of the first cell, determining that a first subband index value for data transmission of the first cell is equal to a preset subband index value; Based on the starting RB index value of the first subband and the offset corresponding to the first cell, a starting RB index value for data transmission of the first cell is determined.

25. The method according to claim 24, characterized in that The determining the number of continuous RBs for data transmission of the first cell includes any one of the following: Determining that the number of continuous RBs for data transmission of the first cell is equal to the number of RBs included in the reference subband of the reference cell; It is determined that the number of continuous RBs for data transmission in the first cell is equal to the number of RBs included in the first subband.

26. The method according to any one of claims 15 to 25, characterized in that The FDRA field is used to indicate: a reference subband index value of a reference cell; wherein the reference cell is a cell among the multiple cells that is different from the first cell; and offsets of starting RB index values ​​for data transmission of other cells among the multiple cells except the reference cell relative to the starting position and / or the maximum frequency domain position of the reference subband.

27. The method according to claim 26, characterized in that The granularity of the offset of the starting RB index value relative to the reference subband index value is any one of the following: RB; RBG; Includes a specified subband with a specified number of RBs.

28. The method according to claim 26, characterized in that In the FDRA field, the reference bit interval corresponding to the reference cell is located before other bit intervals; In the other bit intervals, the cell index value corresponding to the mth bit interval is smaller than the cell index value corresponding to the (m+1)th bit interval; or The cell index value corresponding to the mth bit interval is greater than the cell index value corresponding to the m+1th bit interval; wherein m is a positive integer less than the number of cells scheduled by the DCI.

29. A resource determination device, characterized in that: The device is applied to a terminal and includes: A receiving module configured to receive downlink control information (DCI) sent by a base station; wherein the DCI is used to schedule data transmission of multiple cells; A first determining module is configured to determine a subband parameter value allocated to a first cell within a frequency domain resource range; wherein the first cell is any one of the multiple cells; A second determining module is configured to determine the frequency domain resources for data transmission of the first cell based on the frequency domain resource allocation FDRA field indication value in the DCI and the subband parameter value of the first cell; Wherein, the sub-band parameter value is the sub-band granularity; The second determining module is further configured to: Determining, based on the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell and the subband parameter value of the first cell, an RB range occupied by each subband of the first cell; Determining a first subband index value for data transmission of the first cell based on the FDRA field indicator value; Determine that the frequency domain resources for data transmission of the first cell are a range of RBs occupied by the first subband; or The second determining module is further configured to: Determining, based on the number of resource blocks (RBs) occupied by the frequency domain resource range of the first cell and the subband parameter value of the first cell, an RB range occupied by each subband of the first cell; Determining a starting RB index value for data transmission of the first cell based on the FDRA field indicator value; Determine a continuous number of RBs for data transmission in the first cell.

30. A multi-carrier scheduling device, characterized in that: The device is applied to a base station and includes: A third determining module is configured to determine frequency domain resources for data transmission of each cell scheduled by downlink control information DCI; wherein the DCI is used to schedule data transmission of multiple cells; a fourth determining module, configured to determine a subband parameter value allocated to each cell within a frequency domain resource range; a fifth determining module, configured to determine a bit value included in a frequency domain resource allocation FDRA field in the DCI based at least on the frequency domain resources and the subband parameter value of one cell among the multiple cells; A sending module, configured to send the DCI to the terminal; Wherein, the sub-band parameter value is the sub-band granularity; The third determining module is further configured to: Determining, based on the number of resource blocks (RBs) occupied by a frequency domain resource range of a first cell and the subband parameter value of the first cell, an RB range occupied by each subband of the first cell; wherein the first cell is any one of the multiple cells; determining a first subband index value for data transmission of the first cell; Determine that the frequency domain resources for data transmission of the first cell are a range of RBs occupied by the first subband; or The third determining module is further configured to: Determine a starting RB index value for data transmission of a first cell; wherein the first cell is any one of the multiple cells; Determine a continuous number of RBs for data transmission in the first cell.

31. A computer-readable storage medium, characterized in that The storage medium stores a computer program, and the computer program is used to execute the resource determination method according to any one of claims 1 to 14.

32. A computer-readable storage medium, characterized in that The storage medium stores a computer program, and the computer program is used to execute the multi-carrier scheduling method according to any one of claims 15 to 28.

33. A resource determination device, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to execute the resource determination method according to any one of claims 1 to 14.

34. A multi-carrier scheduling device, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to execute the multi-carrier scheduling method according to any one of claims 15 to 28.

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