RESOURCE SCHEDULING METHOD AND SYSTEM, NETWORK DEVICE, AND TERMINAL

Abstract

The present invention relates to the technical field of communication, and relates to a resource scheduling method and system, a network device, and a terminal. The method of the present invention includes: a network device transmits downlink control information (DCI) to a terminal, the DCI including control information of a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) of a plurality of cells, the DCI being used to schedule the PDSCH or the PUSCH of some or all of the plurality of cells; and the network device transmits the PDSCH to the terminal or receives the PUSCH transmitted by the terminal in some or all of the cells.

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application is based on and claims priority to Chinese Patent Application No. 202210459924.2, filed on April 28, 2022, the disclosure of which is incorporated herein by reference in its entirety.

[0002] The present disclosure relates to the field of communication technologies, and in particular to a resource scheduling method, system, network device, and terminal. [Background technology]

[0003] Fifth generation mobile communication technologies (5th generation mobile networks, 5th generation wireless systems, or 5G, 5G) New Radio (NR) support spectrum bands in various frequency ranges (FR). Due to refarming of spectrum used in previous generation mobile communication networks, the spectrum bands available for 5G NR in the low frequency FR1 bands are often more dispersed and have narrower bandwidths. For FR2 frequency bands and some FR1 frequency bands, wider spectrum bands are available and therefore multi-carrier operation is required. By ensuring that these dispersed spectrum bands or wider bandwidth spectrum bands can be used in a more spectrally efficient, power efficient and flexible manner, higher throughput and wider coverage can be achieved. Summary of the Invention [Problem to be solved by the invention]

[0004] Currently, the NR scheduling mechanism only supports scheduling the Physical Downlink Shared Channel (PDSCH) or the Physical Uplink Shared Channel (PUSCH) in a cell via downlink control information (DCI). When scheduling PDSCH or PUSCH in multiple cells, each cell transmits its own scheduling DCI, therefore scheduling PDSCH or PUSCH in multiple cells requires transmitting multiple DCIs. [Means for solving the problem]

[0005] According to some embodiments of the present disclosure, a resource scheduling method is provided that is performed by a network device, the method including: transmitting downlink control information (DCI) to a terminal, the DCI including control information related to a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in a plurality of cells, the DCI being configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells; and transmitting the PDSCH to the terminal or receiving the PUSCH transmitted from the terminal in some or all of the cells.

[0006] In some embodiments, the method further includes transmitting a radio resource control (RRC) information element to the terminal prior to transmitting the DCI to the terminal, the RRC information element including information indicating a number of cells in which a PDSCH or a PUSCH that may be scheduled by the DCI is located.

[0007] In some embodiments, a serving cell configuration information element in the RRC information element includes first indication information, the first indication information being configured to indicate that a PDSCH or a PUSCH in a cell corresponding to the serving cell configuration information element can be scheduled by DCI.

[0008] In some embodiments, the method further includes transmitting a radio resource control (RRC) information element to the terminal prior to transmitting the DCI to the terminal, the RRC information element including information indicating a cell for transferring the DCI to enable the terminal to receive the DCI in the cell for transferring the DCI.

[0009] In some embodiments, a serving cell configuration information element in the RRC information element comprises second indication information, the second indication information being configured to indicate that the DCI is to be transferred in a cell corresponding to the serving cell configuration information element, or the second indication information being configured to indicate a cell in which the DCI for scheduling a PDSCH or a PUSCH in the cell corresponding to the serving cell configuration information element is located.

[0010] In some embodiments, the control information for the PDSCH or PUSCH in the multiple cells includes common control information for the multiple cells and dedicated control information corresponding to each of the multiple cells.

[0011] In some embodiments, the common control information of the multiple cells occupies consecutive bit positions in the DCI, the dedicated control information corresponding to each of the multiple cells occupies consecutive bit positions in the DCI, and the bit positions occupied by the common control information of the multiple cells are lower than the bit positions occupied by the dedicated control information corresponding to each of the multiple cells.

[0012] In some embodiments, the common control information of the multiple cells and the dedicated control information corresponding to each of the multiple cells occupy multiple fields in the DCI, the multiple fields including a first field having a fixed number of bits and a second field having a number of bits determined by configuration information of the multiple cells, and in all fields in the DCI, the bit positions occupied by the first field are lower than the bit positions occupied by the second field.

[0013] In some embodiments, dedicated control information corresponding to the same cell occupies consecutive bit positions, and bit positions occupied by dedicated control information corresponding to different cells are arranged in a predefined order in the DCI.

[0014] In some embodiments, the dedicated control information corresponding to each of the plurality of cells includes one or more types of information, each of which occupies a field, and bit positions occupied by information corresponding to different cells occupying the same field are contiguous and arranged in a predetermined order.

[0015] In some embodiments, the predetermined order is an ascending or descending order of cell indices of multiple cells from a least significant bit position to a most significant bit position in the DCI, or the RRC information element transmitted to the terminal includes bit position indices of dedicated control information corresponding to multiple cells, and the predetermined order is an ascending or descending order of bit position indices of dedicated control information corresponding to multiple cells from a least significant bit position to a most significant bit position in the DCI.

[0016] In some embodiments, for each of the plurality of cells, in response to the DCI not scheduling a PDSCH or a PUSCH for each of the plurality of cells, the common control information indicates invalid control information for each of the plurality of cells and / or the dedicated control information corresponding to each of the plurality of cells indicates invalid control information.

[0017] In some embodiments, for each of the plurality of cells, in response to all or a portion of the bits of the dedicated control information corresponding to each of the plurality of cells indicating invalid control information, which indicates that scheduling is not performed for the PDSCH or PUSCH in each of the plurality of cells.

[0018] In some embodiments, indicating that all or a portion of the bits of the dedicated control information corresponding to each of the plurality of cells are invalid control information includes all bits of the dedicated control information corresponding to each of the plurality of cells in a field indicating a frequency domain resource allocation being set to 0 or 1.

[0019] According to another embodiment of the present disclosure, there is provided a resource scheduling method performed by a terminal, the method including receiving a downlink control information (DCI) message transmitted from a network device, the DCI including control information related to a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in a plurality of cells, the DCI being configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells, and receiving the PDSCH transmitted from the network device or transmitting the PUSCH to the network device in some or all of the cells according to the DCI.

[0020] In some embodiments, the method further includes receiving a radio resource control (RRC) information element transmitted from the network device before the terminal receives the DCI transmitted from the network device, the RRC information element including information indicating a number of cells in which a PDSCH or a PUSCH that can be scheduled by the DCI is located, and / or information indicating a cell for transferring the DCI.

[0021] In some embodiments, the control information for the PDSCH or PUSCH in the multiple cells includes common control information for the multiple cells and dedicated control information corresponding to each of the multiple cells.

[0022] In some embodiments, for each of the plurality of cells, in response to all or a portion of the bits of the dedicated control information corresponding to each of the plurality of cells indicating invalid control information, which indicates that scheduling is not performed for the PDSCH or PUSCH in each of the plurality of cells.

[0023] In some embodiments, indicating that all or a portion of the bits of the dedicated control information corresponding to each of the plurality of cells are invalid control information includes all bits of the dedicated control information corresponding to each of the plurality of cells in a field indicating a frequency domain resource allocation being set to 0 or 1.

[0024] According to yet another embodiment of the present disclosure, there is provided a network device, the network device comprising a transmitter, or the network device comprising a transmitter and a receiver, the transmitter configured to transmit downlink control information (DCI) to a terminal, the DCI including control information related to a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in a plurality of cells, the DCI configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells, the transmitter configured to transmit the PDSCH to the terminal in some or all of the cells, and the receiver configured to receive the PUSCH transmitted from the terminal in some or all of the cells.

[0025] According to yet another embodiment of the present disclosure, there is provided a terminal, the terminal comprising a receiver, or the terminal comprising a transmitter and a receiver, the receiver configured to receive a Downlink Control Information (DCI) message transmitted from a network device, the DCI including control information related to a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH) in a plurality of cells, the DCI configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells, the receiver configured to receive the PDSCH transmitted from the network device in some or all of the cells in accordance with the DCI, and the transmitter configured to transmit the PUSCH to the network device in some or all of the cells in accordance with the DCI.

[0026] According to yet another embodiment of the present disclosure, there is provided a communications device comprising a processor and a memory coupled to the processor for storing instructions that, when executed by the processor, cause the processor to perform a resource scheduling method of any one of the preceding embodiments.

[0027] According to yet another embodiment of the present disclosure, there is provided a resource scheduling system comprising a network device according to any of the preceding embodiments and a terminal according to any of the preceding embodiments.

[0028] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings.

[0029] In order to more clearly describe the embodiments of the present disclosure or the technical solutions in the prior art, a brief introduction is given below with respect to the drawings that are required to be used in the description of the embodiments or the prior art. It is clear that the drawings shown below are only some embodiments of the present disclosure. Those skilled in the art can also obtain other drawings according to such drawings, on the premise that no inventive efforts are required. [Brief description of the drawings]

[0030] [Figure 1] 1 is a flowchart of a resource scheduling method according to some embodiments of the present disclosure. [Figure 2A] 1 is a schematic structural diagram of a DCI according to some embodiments of the present disclosure. [Figure 2B] FIG. 13 is a schematic structural diagram of a DCI according to another embodiment of the present disclosure. [Figure 2C] FIG. 13 is a schematic structural diagram of a DCI according to yet another embodiment of the present disclosure. [Diagram 3] 11 is a flowchart of a resource scheduling method according to another embodiment of the present disclosure. [Figure 4] 1 is a schematic structural diagram of a network device according to some embodiments of the present disclosure. [Diagram 5] FIG. 2 is a schematic structural diagram of a terminal according to some embodiments of the present disclosure. [Figure 6] 1 is a schematic structural diagram of a communication device according to some embodiments of the present disclosure; [Figure 7] FIG. 13 is a schematic structural diagram of a communication device according to another embodiment of the present disclosure. [Figure 8] 1 is a schematic structural diagram of a resource scheduling system according to some embodiments of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] In the following, a clear and complete description is given with reference to the figures of the embodiments of the present disclosure regarding the technical solutions of the embodiments of the present disclosure. Obviously, only some embodiments of the present disclosure are given herein, not all embodiments of the present disclosure. The following description of at least one typical embodiment is merely exemplary in nature, and is in no way intended as a limitation on the present disclosure, its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0032] The inventors have realized that existing scheduling methods for PDSCH or PUSCH result in excessive overhead. In particular, the characteristics of the 5G frequency band make it difficult to fully utilize spectrum resources, resulting in low spectrum efficiency, low power efficiency, etc.

[0033] The technical problem to be solved by the present disclosure is to propose a new scheduling method for PDSCH or PUSCH, which can improve the utilization and efficiency of spectrum resources and reduce overhead.

[0034] The present disclosure provides a resource scheduling method, which is described below with reference to FIGS.

[0035] 1 shows a flowchart of a resource scheduling method according to some embodiments of the present disclosure. As shown in FIG. 1, the method of this embodiment includes steps S102 to S104.

[0036] In step 102, the network device transmits a DCI to the terminal, and in response, the terminal receives the DCI transmitted from the network device.

[0037] The terminal is also known as User Equipment (UE). The network device is, for example, a base station. The DCI (also known as multi-cell scheduling DCI) includes, for example, control information regarding a PDSCH or a PUSCH in a plurality of cells, and the DCI is configured to schedule a PDSCH or a PUSCH in some or all of the plurality of cells. In response to the network device scheduling a PDSCH, the DCI is configured to schedule a PDSCH in some or all of the plurality of cells, and in response to the network device scheduling a PUSCH, the DCI is configured to schedule a PUSCH in some or all of the plurality of cells. The plurality of cells may include cells in the same frequency band or cells in separate frequency bands, and one PDSCH or PUSCH may be scheduled in each cell.

[0038] It should be noted that the DCI in the present disclosure can be configured to schedule PDSCH or PUSCH for some or all of the carriers. One PDSCH or PUSCH can be scheduled for each carrier, and the cells in the present disclosure can be replaced with carriers without affecting the application of the solution, which falls within the scope of protection of the present disclosure and will not be repeated here.

[0039] The uplink carriers of a cell may include a supplemental uplink (SUL) carrier and a normal uplink (NUL) carrier. For each cell, a DCI may be configured to schedule and indicate that the PUSCH of the cell is transmitted on the SUL carrier or the NUL carrier. The DCI may also be configured to schedule and indicate that the PUSCH of the cell is transmitted on both the SUL carrier and the NUL carrier.

[0040] In some embodiments, the control information for the PDSCH or PUSCH in the multiple cells includes common control information of the multiple cells and dedicated control information corresponding to each of the multiple cells. The common control information of the multiple cells has the same value for scheduling the PDSCH or PUSCH in each cell. The common control information of the multiple cells can indicate the same information for the PDSCH or PUSCH in the cells or jointly indicate different information for the PDSCH or PUSCH in the cells. The dedicated control information corresponding to each cell includes dedicated control information for scheduling the PDSCH or PUSCH in the respective cell. The dedicated control information corresponding to different cells can have different values ​​for scheduling the PDSCH or PUSCH in the cells.

[0041] In some embodiments, for each of the plurality of cells, in response to the DCI not scheduling a PDSCH or PUSCH for each of the plurality of cells, the common control information indicates invalid control information for each of the plurality of cells and / or the dedicated control information corresponding to each of the plurality of cells indicates invalid control information. In response to the DCI being configured to schedule a PDSCH or PUSCH in a portion of the plurality of cells, the PDSCH or PUSCH of some cells is not scheduled by the DCI. For those PDSCHs or PUSCHs of the non-scheduled cells, the common control information indicates invalid control information and / or the corresponding dedicated control information indicates invalid control information.

[0042] The DCI may indicate invalid control information for the PDSCH or PUSCH in a particular cell, indicating that no scheduling is performed for the PDSCH or PUSCH in the particular cell. For example, all or some of the bits of the dedicated control information corresponding to a cell indicate invalid control information, indicating that no scheduling is performed for the PDSCH or PUSCH in the cell. For the dedicated control information indicating invalid control information, for example, all or some of the bits are set to a pre-configured value. For example, the bits in the dedicated control information corresponding to the cell for indicating one or more of the frequency domain resource allocation (FDRA), modulation / coding scheme, and number of hybrid automatic repeat request (HARQ) processes are set to 0 or 1. As another example, in cases where the common control information of multiple cells provides a joint indication of separate information for the PDSCH or PUSCH in the cells, invalid control information may be indicated for the PDSCH or PUSCH in one of the cells.

[0043] Table 1 shows some embodiments of common control information of multiple cells, which provides a joint indication of separate information on PDSCH or PUSCH in those cells. For each cell, a mapping relationship between the value of the common control information of those multiple cells and the indicated control information on PDSCH or PUSCH in those cells can be predefined. For example, if the value of the common control information is 3, it indicates the first control information on cell 1, the second control information on cell 2, and the first control information on cell 3. As another example, if the value of the common control information is 5, it indicates invalid control information on cell 1... [Table 1]

[0044] In the above embodiment, the number of DCI bits does not change with the number of scheduled cells, resulting in lower terminal detection complexity.

[0045] The common control information of the multiple cells may include one or more types of information, each occupying one field, for example, the common control information of the multiple cells may include at least one of an identifier for a DCI format, a downlink allocation index, a power control command for a scheduled physical uplink control channel (PUCCH), a PUCCH resource indicator, or a feedback timing indicator from a PDSCH to HARQ, which are not limited to the examples given above.

[0046] The dedicated control information corresponding to each cell may include one or more types of information, each occupying a field, for example, the dedicated control information corresponding to each cell may include at least one of a bandwidth portion (BWP) indicator, a modulation / coding scheme, a new data indicator, a redundancy version, or a HARQ process number, which are not limited to the examples given above.

[0047] For example, the DCI may include fields for an identifier for a DCI format, a frequency domain resource allocation, a time domain resource allocation, a modulation / coding scheme, a new data indicator, a redundancy version, a downlink allocation index, a power control command for a scheduled PUCCH, a PUCCH resource indicator, a feedback timing indicator from a PDSCH to HARQ, and the like, which are not limited to the examples given above. Reference may be made to existing standards regarding the fields included in the DCI, and the DCI in this disclosure may not include a carrier indicator field. With respect to one or more types of information included in the common control information of multiple cells and one or more types of information included in the dedicated control information corresponding to each cell, each type of information occupies one corresponding field in the DCI. For example, an identifier for a DCI format in the common control information for multiple cells occupies a DCI format identifier field in the DCI, and a modulation / coding scheme in the dedicated control information corresponding to each cell occupies a modulation / coding scheme field in the DCI.

[0048] In the following, the arrangement of common control information for multiple cells and dedicated control information for each cell in DCI will be described with reference to Figures 2A to 2C.

[0049] In some embodiments, dedicated control information corresponding to the same cell occupies consecutive bit positions, and bit positions occupied by dedicated control information corresponding to different cells are arranged in a predefined order in the DCI.

[0050] As shown in Figure 2A, dedicated control information corresponding to the same cell occupies consecutive bits in different fields. For example, the dedicated control information corresponding to cell 1 includes three types of information occupying field 1, field 2, and field 3, respectively. These three types of information occupy consecutive bit positions in the DCI. Similarly, the three types of information corresponding to cell 2 occupying field 1, field 2, and field 3, respectively, also occupy consecutive bit positions in the DCI.... As shown in Figure 2A, the ellipsis indicates that there may or may not be other bits between the dedicated control information corresponding to cell 1 and the dedicated control information corresponding to cell 2.

[0051] In other embodiments, the dedicated control information corresponding to each cell includes one or more types of information, each of which occupies a field, and the bit positions occupied by information corresponding to different cells occupying the same field are contiguous and arranged in a predetermined order.

[0052] As shown in Figure 2B, the bit positions occupied by information corresponding to different cells occupying the same field are contiguous. For example, the bit positions of the information occupying field 1 corresponding to cells 1, 2, and 3 are contiguous, the bit positions of the information occupying field 2 corresponding to cells 1, 2, and 3 are contiguous, etc. As shown in Figure 2B, the ellipsis indicates that there may or may not be other bits between fields 1 and 2.

[0053] In some embodiments, the predetermined order is an ascending or descending order of cell indices of the multiple cells from a least significant bit position to a most significant bit position in the DCI. The cell index is, for example, a Serv Cell Index (ServCellIndex) of each cell. In an embodiment in which the DCI schedules the PUSCH in the cell for simultaneous transmission on the SUL and NUL carriers when the uplink carriers of the cell are configured to include a SUL carrier and a NUL carrier, the SUL and NUL carriers have the same ServCellIndex, and the dedicated control information corresponding to the SUL and NUL carriers is arranged in the order NUL before SUL, or SUL before NUL. Information corresponding to the SUL and NUL carriers occupying the same field is arranged in the order NUL before SUL, or SUL before NUL.

[0054] As shown in Figure 2A, the cell indices of the cells are, for example, 1, 2, and 3. The dedicated control information corresponding to different cells is arranged in ascending order of the cell indices of the cells in the DCI from the least significant bit position to the most significant bit position. As shown in Figure 2B, the information corresponding to different cells occupying the same field is arranged in ascending order of the cell indices of the cells in the DCI from the least significant bit position to the most significant bit position.

[0055] In another embodiment, a radio resource control (RRC) information element transmitted from a network device to a terminal includes bit position indexes of dedicated control information corresponding to a plurality of cells, and the predetermined order is an ascending or descending order of bit position indexes of the dedicated control information corresponding to a plurality of cells from a lower bit position to a higher bit position in the DCI. The bit position indexes of the dedicated control information for each cell may also be configured in the RRC information element. For example, the bit position indexes of the dedicated control information of a cell corresponding to a serving cell configuration information element are configured in a multi-cell scheduling configuration (MultiCellSchedulingConfig) information element of the serving cell configuration information element in the RRC information element.

[0056] In some embodiments, the common control information of the multiple cells occupies consecutive bit positions in the DCI, the dedicated control information corresponding to each of the multiple cells occupies consecutive bit positions in the DCI, and the bit positions occupied by the common control information of the multiple cells are lower than the bit positions occupied by the dedicated control information corresponding to each of the multiple cells. As shown in Figure 2C, when the common control information of the multiple cells occupies multiple fields, the bits of the multiple fields are consecutive. All the bits of the dedicated control information corresponding to each cell may be consecutive bits. The common control information of the multiple cells may occupy lower bit positions of all the bits of the DCI.

[0057] In some embodiments, the common control information of the multiple cells and the dedicated control information corresponding to each of the multiple cells occupy multiple fields in the DCI, the multiple fields including a first field having a fixed number of bits and a second field having a number of bits determined by configuration information of the multiple cells, and in all fields in the DCI, the bit positions occupied by the first field are lower than the bit positions occupied by the second field.

[0058] As shown in FIG. 2C, the fields occupied by the common control information of the multiple cells, field 1 and field 2, have a fixed number of bits that are independent of the configuration information of the cells and are arranged in lower bit positions compared to field 3, which has a certain number of bits determined by the configuration information of the cells. The number of bits occupied by one or more types of information in the dedicated control information corresponding to each cell can be related to the configuration information of the corresponding cell. For example, the number of bits in the frequency domain resource allocation field is related to the bandwidth of the BWP to be activated in the cell. The number of bits occupied by one or more types of information in the common control information of the multiple cells can be related to the configuration information of the multiple cells. For example, the bits of the BWP indicator in the common control information of the multiple cells jointly indicate the BWP to be activated in the respective cells, and the number of the bits is related to the number of BWPs configured in the cell. With the above arrangement, the bit positions of the first field in the DCI are fixed, i.e., the bit positions do not change with different situations of the scheduled cells, so that the terminal can quickly interpret this information.

[0059] In step 104, the network device transmits a PDSCH to the terminal or receives a PUSCH transmitted from the terminal in some or all of the cells. Correspondingly, the terminal receives a PDSCH transmitted from the network device or transmits a PUSCH to the network device in some or all of the cells according to the DCI.

[0060] In the above embodiment, the DCI sent from the network device to the terminal includes control information on the PDSCH or PUSCH in multiple cells, and can schedule the PDSCH or PUSCH in some or all of the multiple cells according to actual needs. After receiving the DCI sent from the network device, the terminal can know which cell receives the PDSCH or transmits the PUSCH, thereby achieving data transmission between the network device and the terminal. The solution of the above embodiment can achieve the scheduling of the PDSCH or PUSCH of multiple cells using a single DCI, which can solve the problem of how to fully utilize the spectrum resources when there are multiple scattered frequency band narrow-bandwidth carriers in the low frequency range or medium frequency range, reduce the overhead of the control channel, reduce the possibility of collision of the control channel, improve the throughput, reduce the power consumption of the terminal, and effectively improve the flexibility, spectrum efficiency, power efficiency, etc. of the scheduling of the discrete spectrum or wide-bandwidth spectrum.

[0061] Another embodiment of the resource scheduling method of the present disclosure is described below with reference to FIG.

[0062] 3 shows a flowchart of a resource scheduling method according to another embodiment of the present disclosure. As shown in FIG. 1, the method of this embodiment includes steps S302 to S306.

[0063] In step 302, the network device sends an RRC information element to the terminal, and correspondingly, the terminal receives the RRC information element sent from the network device.

[0064] In some embodiments, the RRC information element includes information indicating a number of cells in which a PDSCH or PUSCH that can be scheduled by the DCI is located. The control information for the number of cells included in the DCI corresponds to the number of cells indicated in the RRC information element in which a PDSCH or PUSCH that can be scheduled using the DCI is located. The DCI can be used to schedule the PDSCH or PUSCH in all or a part (two or more) of the number of cells indicated by the RRC information element.

[0065] In another embodiment, the RRC information element includes information indicating a cell for forwarding the DCI, the information being configured to indicate to the terminal to receive the DCI in the cell forwarding the DCI.

[0066] The RRC information element may configure which cells may have their PDSCH or PUSCH scheduled by the DCI, i.e., the maximum number of cells that may be scheduled by the DCI and information about the cells. For example, a MultiCellSchedulingConfig information element may be added. MultiCarrierSchedulingConfig may be included, for example, in a Serving Cell Configuration (ServingCellConfig) information element. MultiCellSchedulingConfig includes a first indication information indicating that the PDSCH or PUSCH in the cell corresponding to the ServingCellConfig information element may be scheduled by the DCI. For example, the RRC information element may configure up to three or five cells having PDSCH or PUSCH that may be scheduled using the multi-cell scheduling DCI.

[0067] In some embodiments, a serving cell configuration information element in the RRC information element includes first indication information, the first indication information being configured to indicate that a PDSCH or a PUSCH in a cell corresponding to the serving cell configuration information element can be scheduled by DCI.

[0068] For example, a 1-bit first indication information may be added to a serving cell configuration information element corresponding to a cell in which a PDSCH or PUSCH that can be scheduled by DCI is placed, to indicate that the PDSCH or PUSCH of the cell can be scheduled by DCI. Alternatively, a pre-configured number of bits (e.g., 1 bit) of first indication information may be added to a serving cell configuration information element corresponding to each cell. If the value of the first indication information is a first value (e.g., 1), it indicates that the PDSCH or PUSCH of the cell can be scheduled by DCI. If the value of the first indication information is a second value (e.g., 0), it indicates that the PDSCH or PUSCH of the cell cannot be scheduled by DCI. Of course, the index of the cell in which a PDSCH or PUSCH that can be scheduled by DCI is placed may also be directly indicated in RRC, and the indication method is not limited to the example given in this specification.

[0069] In some embodiments, a serving cell configuration information element in the RRC information element comprises second indication information, the second indication information being configured to indicate that the DCI is to be transferred in a cell corresponding to the serving cell configuration information element, or the second indication information being configured to indicate a cell in which the DCI for scheduling a PDSCH or a PUSCH in the cell corresponding to the serving cell configuration information element is located.

[0070] For example, one bit of second indication information may be added to a serving cell configuration information element corresponding to a cell to which the DCI is transferred, to indicate that the cell is configured to transfer the DCI. Alternatively, a pre-configured number of bits (e.g., one bit) of second indication information may be added to a serving cell configuration information element corresponding to each cell. If the value of the second indication information is a third value (e.g., 1), it indicates that the cell is configured to transfer the DCI. If the value of the second indication information is a fourth value (e.g., 0), it indicates that the cell is not configured to transfer the DCI. Alternatively, the second indication information may be added to a serving cell configuration information element corresponding to each cell or multiple cells in which a PDSCH or PUSCH that can be scheduled using the DCI is located, to indicate a cell index of the cell that transfers the DCI. For example, the second indication information is included in the MultiCellSchedulingConfig. For example, when the second indication information is included in the serving cell configuration information element, as a default, the PDSCH or PUSCH of the cell corresponding to the serving cell configuration information element may be scheduled using DCI, and therefore there is no need to include the first indication information in the serving cell configuration information element. The indication method may be configured according to actual needs, and is not limited to the examples given in this specification.

[0071] In step S304, the network device transmits DCI to the terminal, and correspondingly, the terminal receives the DCI transmitted from the network device.

[0072] In step S306, the network device transmits a PDSCH to the terminal in the cell scheduled by the DCI or receives a PUSCH transmitted from the terminal. Correspondingly, the terminal receives a PDSCH transmitted from the network device in the cell scheduled by the DCI or transmits a PUSCH to the network device.

[0073] For specific implementation of steps S304-S306, reference may be made to steps S102-S104, and details will not be described in this specification.

[0074] The above embodiments dynamically indicate multiple cells that can be scheduled by a DCI and cells for transferring the DCI via RRC information elements, thereby achieving flexible configuration of the DCI and cells that can be scheduled by the DCI and balancing the DCI load on multiple cells.

[0075] The present disclosure also provides a network device, which is described below with reference to FIG.

[0076] 4 is a structural diagram of a network device according to some embodiments of the present disclosure. As shown in FIG. 4, the network device 40 of this embodiment includes a transmitter 410, or the network device 40 includes a transmitter 410 and a receiver 420.

[0077] The transmitter 410 is configured to transmit downlink control information (DCI) to a terminal, the DCI including control information for a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in a plurality of cells, the DCI configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells, and the transmitter configured to transmit the PDSCH in some or all of the cells to the terminal.

[0078] In some embodiments, the transmitter 410 is further configured to transmit a radio resource control (RRC) information element to the terminal, the RRC information element including information indicating a number of cells in which a PDSCH or a PUSCH that may be scheduled by the DCI is located.

[0079] In some embodiments, a serving cell configuration information element in the RRC information element includes first indication information, the first indication information being configured to indicate that a PDSCH or a PUSCH in a cell corresponding to the serving cell configuration information element can be scheduled by DCI.

[0080] In some embodiments, the transmitter 410 is further configured to transmit a radio resource control (RRC) information element to the terminal, the RRC information element including information indicating a cell for forwarding the DCI to enable the terminal to receive the DCI in the cell for forwarding the DCI.

[0081] In some embodiments, a serving cell configuration information element in the RRC information element comprises second indication information, the second indication information being configured to indicate that the DCI is to be transferred in a cell corresponding to the serving cell configuration information element, or the second indication information being configured to indicate a cell in which the DCI for scheduling a PDSCH or a PUSCH in the cell corresponding to the serving cell configuration information element is located.

[0082] In some embodiments, the control information for the PDSCH or PUSCH in the multiple cells includes common control information for the multiple cells and dedicated control information corresponding to each of the multiple cells.

[0083] In some embodiments, the common control information of the multiple cells occupies consecutive bit positions in the DCI, the dedicated control information corresponding to each of the multiple cells occupies consecutive bit positions in the DCI, and the bit positions occupied by the common control information of the multiple cells are lower than the bit positions occupied by the dedicated control information corresponding to each of the multiple cells.

[0084] In some embodiments, the common control information of the multiple cells and the dedicated control information corresponding to each of the multiple cells occupy multiple fields in the DCI, the multiple fields including a first field having a fixed number of bits and a second field having a number of bits determined by configuration information of the multiple cells, and in all fields in the DCI, the bit positions occupied by the first field are lower than the bit positions occupied by the second field.

[0085] In some embodiments, dedicated control information corresponding to the same cell occupies consecutive bit positions, and bit positions occupied by dedicated control information corresponding to different cells are arranged in a predefined order in the DCI.

[0086] In some embodiments, the dedicated control information corresponding to each of the plurality of cells includes one or more types of information, each of which occupies a field, and the bit positions occupied by information corresponding to different cells occupying the same field are contiguous and arranged in a predetermined order.

[0087] In some embodiments, the predetermined order is an ascending or descending order of cell indices of the multiple cells from a lower bit position to a higher bit position in the DCI, or an RRC information element transmitted from the network device to the terminal includes bit position indices of dedicated control information corresponding to the multiple cells, and the predetermined order is an ascending or descending order of bit position indices of the dedicated control information corresponding to the multiple cells from a lower bit position to a higher bit position in the DCI.

[0088] In some embodiments, for each of the plurality of cells, in response to the DCI not scheduling a PDSCH or a PUSCH for each of the plurality of cells, the common control information indicates invalid control information for each of the plurality of cells and / or the dedicated control information corresponding to each of the plurality of cells indicates invalid control information.

[0089] The receiver 420 is configured to receive PUSCHs transmitted from terminals in some or all of the cells.

[0090] For details of DCI and RRC information elements, reference may be made to the above embodiments and will not be repeated here.

[0091] The present disclosure also provides a terminal, which is described below with reference to FIG.

[0092] 5 is a structural diagram of a terminal according to some embodiments of the present disclosure. As shown in FIG. 5, the terminal 50 of this embodiment includes a receiver 510, or the terminal 50 includes a receiver 510 and a transmitter 520.

[0093] The receiver 510 is configured to receive a downlink control information (DCI) message transmitted from a network device, the DCI including control information for a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in a plurality of cells, the DCI configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells, and the receiver 510 is configured to receive the PDSCH transmitted from the network device in some or all of the cells in accordance with the DCI.

[0094] In some embodiments, the receiver 510 is further configured to receive a radio resource control (RRC) information element transmitted from the network device, the RRC information element including information indicating a number of cells in which a PDSCH or a PUSCH that may be scheduled by the DCI is located and / or information indicating a cell for transferring the DCI.

[0095] The transmitter 520 is configured to transmit the PDSCH to network devices in some or all of the cells in accordance with the DCI.

[0096] For details of DCI and RRC information elements, reference may be made to the above embodiments and will not be repeated here.

[0097] A communication apparatus (e.g., a network device or a terminal) in an embodiment of the present disclosure may be implemented by various computing devices or computer systems, and the communication apparatus will be described below with reference to Figures 6 and 7.

[0098] 6 is a structural diagram of a communication device according to some embodiments of the present disclosure. As shown in FIG. 6, the device 60 of this embodiment includes a memory 610 and a processor 620 coupled to the memory 610, and the processor 620 is configured to execute the resource scheduling method according to any one of the embodiments of the present disclosure based on instructions stored in the memory 610.

[0099] The memory 610 may include, for example, system memory, fixed non-volatile storage media, etc. The system memory stores, for example, an operating system, applications, boot loaders, databases, and other programs.

[0100] FIG. 7 is a structural diagram of a communication device according to another embodiment of the present disclosure. As shown in FIG. 7, the device 70 of this embodiment includes a memory 710 and a processor 720, which are similar to the memory 610 and the processor 620, respectively. The device 70 may further include an input / output interface 730, a network interface 740, a storage interface 750, etc. These interfaces 730, 740, 750, the memory 710, and the processor 720 may be connected, for example, through a bus 760. The input / output interface 730 provides a connection interface for input / output devices such as a display, a mouse, a keyboard, or a touch screen. The network interface 740 provides a connection interface for various network-connected devices. For example, the network interface 740 may be connected to a database server or a cloud storage server. The storage interface 750 provides a connection interface for an external storage device such as an SD card or a USB flash disk.

[0101] The present disclosure also provides a resource scheduling system, which is described below with reference to FIG.

[0102] 8 is a structural diagram of a resource scheduling system according to some embodiments of the present disclosure. As shown in FIG. 8, the system 8 of this embodiment includes a network device 50 and a terminal 60 according to any one of the above-mentioned embodiments.

[0103] It will be appreciated by those skilled in the art that embodiments of the present disclosure may be provided as a method, a system, or a computer program product. Thus, embodiments of the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment containing both hardware and software elements. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage devices, etc.) having computer usable program code embodied therein.

[0104] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. Those computer program instructions can be provided to a processor of a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing device to produce a machine, whereby those instructions, executed by the processor of the computer or other programmable data processing device, produce means for performing the functions specified in one or more flows of the flowcharts and / or one or more blocks of the block diagrams.

[0105] The computer program instructions may be stored in a computer-readable storage device capable of instructing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable storage device produce an article of manufacture including instruction means for implementing the functions specified in one or more flows of the flowcharts and / or one or more blocks of the block diagrams.

[0106] These computer program instructions may be loaded onto a computer or other programmable data processing apparatus and execute a sequence of operation steps on the computer or other programmable data processing apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable data processing apparatus provide steps for implementing the functions specified in one or more flows of the flowcharts and / or one or more blocks of the block diagrams.

[0107] The above are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, replacements, improvements, etc. within the spirit and principle of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. transmitting downlink control information (DCI) to a terminal, the DCI including control information related to a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in a plurality of cells, the DCI being configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells; Transmitting the PDSCH to the terminal or receiving the PUSCH transmitted from the terminal in the part or all of the cells.

23. A resource scheduling method performed by a network device, comprising:

2. 2. The resource scheduling method of claim 1, further comprising: transmitting a radio resource control (RRC) information element to the terminal before transmitting the DCI to the terminal, the RRC information element including information indicating the plurality of cells in which the PDSCH or the PUSCH that can be scheduled by the DCI are located.

3. 3. The resource scheduling method according to claim 2, wherein a serving cell configuration information element in the RRC information element includes first indication information, the first indication information being configured to indicate that a PDSCH or a PUSCH in a cell corresponding to the serving cell configuration information element can be scheduled by the DCI.

4. 4. The resource scheduling method according to claim 1, further comprising: transmitting a radio resource control (RRC) information element to the terminal before transmitting the DCI to the terminal, the RRC information element including information indicating the cell for transmitting the DCI to enable the terminal to receive the DCI in the cell for transmitting the DCI.

5. 5. The resource scheduling method according to claim 4, wherein a serving cell configuration information element in the RRC information element includes second indication information, the second indication information being configured to indicate that the DCI is to be transferred in a cell corresponding to the serving cell configuration information element, or the second indication information being configured to indicate a cell in which the DCI for scheduling a PDSCH or a PUSCH in the cell corresponding to the serving cell configuration information element is located.

6. The resource scheduling method according to claim 1 , wherein the control information regarding the PDSCH or the PUSCH in the plurality of cells includes common control information of the plurality of cells and dedicated control information corresponding to each of the plurality of cells.

7. the common control information of the plurality of cells occupies consecutive bit positions in the DCI; the dedicated control information corresponding to each of the plurality of cells occupies consecutive bit positions in the DCI; the bit positions occupied by the common control information of the plurality of cells are lower than the bit positions occupied by the dedicated control information corresponding to each of the plurality of cells. The resource scheduling method according to claim 6.

8. the common control information of the plurality of cells and the dedicated control information corresponding to each of the plurality of cells occupy a plurality of fields in the DCI, the plurality of fields including a first field having a fixed number of bits and a second field having a number of bits determined by configuration information of the plurality of cells, and in all the fields in the DCI, a bit position occupied by the first field is lower than a bit position occupied by the second field. The resource scheduling method according to claim 6.

9. said dedicated control information corresponding to the same cell occupying consecutive bit positions; the bit positions occupied by the dedicated control information corresponding to different cells are arranged in a predetermined order in the DCI. The resource scheduling method according to claim 6.

10. the dedicated control information corresponding to each of the plurality of cells includes one or more types of information, each of the one or more types of information occupying a field; said bit positions occupied by information corresponding to different cells occupying the same field are contiguous and arranged in a predetermined order; The resource scheduling method according to claim 6.

11. the predetermined order being an ascending or descending order of cell indices of the plurality of cells from a least significant bit position to a most significant bit position in the DCI; or The RRC information element transmitted to the terminal includes bit position indexes of the dedicated control information corresponding to the plurality of cells, and the predetermined order is an ascending order or a descending order of the bit position indexes of the dedicated control information corresponding to the plurality of cells from a lower bit position to a higher bit position in the DCI. A resource scheduling method according to claim 9 or 10.

12. for each of the plurality of cells, in response to the DCI not scheduling a PDSCH or a PUSCH for the each of the plurality of cells, the common control information indicates invalid control information for the each of the plurality of cells, and / or the dedicated control information corresponding to the each of the plurality of cells indicates invalid control information. The resource scheduling method according to claim 6.

13. 7. The resource scheduling method of claim 6, wherein, for the each of the plurality of cells, in response to all or a portion of the bits of the dedicated control information corresponding to the each of the plurality of cells indicating invalid control information, which indicates that no scheduling is performed for a PDSCH or a PUSCH in the each of the plurality of cells.

14. 14. The resource scheduling method of claim 13, wherein all or a portion of the bits of the dedicated control information corresponding to the each of the plurality of cells indicating invalid control information comprises all bits of the dedicated control information corresponding to the each of the plurality of cells in a field indicating a frequency domain resource allocation being set to 0 or 1.

15. receiving a downlink control information (DCI) message transmitted from a network device, the DCI including control information regarding a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in a plurality of cells, the DCI configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells; receiving a PDSCH transmitted from the network device or transmitting a PUSCH to the network device in the some or all of the cells in accordance with the DCI; A resource scheduling method performed by a terminal, comprising:

16. 16. The resource scheduling method according to claim 15, further comprising receiving a radio resource control (RRC) information element transmitted from the network device before the terminal receives the DCI transmitted from the network device, the RRC information element including information indicating the plurality of cells in which the PDSCH or the PUSCH that can be scheduled by the DCI is located, and / or information indicating a cell for transferring the DCI.

17. 17. The resource scheduling method according to claim 15 or 16, wherein the control information for PDSCH or PUSCH in the plurality of cells includes common control information of the plurality of cells and dedicated control information corresponding to each of the plurality of cells.

18. 18. The resource scheduling method of claim 17, wherein, for the each of the plurality of cells, in response to all or a portion of the bits of the dedicated control information corresponding to the each of the plurality of cells indicating invalid control information, which indicates that no scheduling is performed for a PDSCH or a PUSCH in the each of the plurality of cells.

19. 20. The resource scheduling method of claim 18, wherein all or a portion of the bits of the dedicated control information corresponding to the each of the plurality of cells indicating invalid control information comprises all bits of the dedicated control information corresponding to the each of the plurality of cells in a field indicating a frequency domain resource allocation being set to 0 or 1.

20. A network device, the network device comprising a transmitter or the network device comprising a transmitter and a receiver; the transmitter is configured to transmit downlink control information (DCI) to a terminal, the DCI including control information for a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in a plurality of cells, the DCI configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells, and the transmitter is configured to transmit the PDSCH to the terminal in the some or all of the cells; A network device, wherein the receiver is configured to receive a PUSCH transmitted from the terminal in the some or all of the cells.

21. A terminal, the terminal comprising a receiver, or the terminal comprising a transmitter and a receiver; the receiver is configured to receive a downlink control information (DCI) message transmitted from a network device, the DCI including control information for a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in a plurality of cells, the DCI configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells, and the receiver is configured to receive the PDSCH transmitted from the network device in the some or all of the cells in accordance with the DCI; A terminal, wherein the transmitter is configured to transmit the PUSCH to the network device in the some or all of the cells in accordance with the DCI.

22. A communication device, comprising: A processor; A memory coupled to the processor for storing instructions which, when executed by the processor, cause the processor to perform a resource scheduling method according to any one of claims 1 to 19; A communication device comprising:

23. A resource scheduling system comprising a network device according to claim 20 and a terminal according to claim 21.

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