Resource scheduling methods and systems, network devices, and terminals

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] This disclosure relates to the field of communication technologies, and particularly to resource scheduling methods, systems, network devices, and terminals.

Background Art

[0003] The 5th generation mobile communication technology (5th generation mobile network, 5th generation wireless system, or 5G) New Radio (NR) supports spectrum bands in various frequency ranges (FR). Due to the refarming of the spectrum used in previous generations of mobile communication networks, the spectrum bands available for 5G NR in the low-frequency FR1 band are often more dispersed and have a narrower bandwidth. For the FR2 frequency band 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

Problems to be Solved by the Invention

[0004] Currently, the NR scheduling mechanism only supports scheduling physical downlink shared channels (PDSCH) or physical uplink shared channels (PUSCH) in a cell via downlink control information (DCI). When scheduling PDSCH or PUSCH in multiple cells, each cell must transmit its own scheduling DCI, and 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, which includes transmitting downlink control information (DCI) to a terminal, wherein the DCI includes control information relating to physical downlink shared channels (PDSCH) or physical uplink shared channels (PUSCH) in a plurality of cells, and the DCI is configured to schedule PDSCH or PUSCH in some or all of the plurality of cells, and in some or all of the cells, transmits PDSCH to a terminal or receives PUSCH transmitted from a terminal.

[0006] In some embodiments, the method further includes 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 a plurality of cells where PDSCH or PUSCH that can be scheduled by the DCI are located.

[0007] In some embodiments, a serving cell configuration information element in an RRC information element includes first display information, which is configured to indicate that a PDSCH or PUSCH in the 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 before transmitting the DCI to the terminal, the RRC information element including information indicating a cell for transmitting the DCI, in order to enable the terminal to receive the DCI in that cell.

[0009] In some embodiments, the serving cell configuration information element in the RRC information element includes second display information, the second display information is configured to indicate that a DCI will be transferred in the cell corresponding to the serving cell configuration information element, or the second display information is configured to indicate the cell in which a DCI is placed to schedule a PDSCH or PUSCH in the cell corresponding to the serving cell configuration information element.

[0010] In some embodiments, the control information for PDSCH or PUSCH in 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, common control information for multiple cells occupies consecutive bit positions in the DCI, while 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 for 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, common control information for a plurality of cells, and dedicated control information corresponding to each of the plurality of cells, occupy a plurality of fields in the DCI, each field including a first field having a fixed number of bits and a second field having a number of bits determined by the configuration information of the plurality of cells, wherein 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, while bit positions occupied by dedicated control information corresponding to different cells are arranged in a predetermined order in the DCI.

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

[0015] In some embodiments, the predetermined order is the ascending or descending order of the cell indices of multiple cells from the lower bit position to the higher bit position in the DCI, or the RRC information elements transmitted to the terminal include the bit position indices of dedicated control information corresponding to multiple cells, and the predetermined order is the ascending or descending order of the bit position indices of dedicated control information corresponding to multiple cells from the lower bit position to the higher bit position in the DCI.

[0016] In some embodiments, with respect to each of the multiple cells, if DCI does not schedule a PDSCH or PUSCH for each of the multiple cells, the common control information indicates invalid control information for each of the multiple cells, and / or the dedicated control information corresponding to each of the multiple cells indicates invalid control information.

[0017] In some embodiments, with respect to each of the multiple cells, if all or some of the bits of the dedicated control information corresponding to each of the multiple cells indicate invalid control information, it indicates that scheduling will not be performed with respect to the PDSCH or PUSCH in each of the multiple cells.

[0018] In some embodiments, all or some of the bits of the dedicated control information corresponding to each of the multiple cells indicating invalid control information includes setting all bits of the dedicated control information corresponding to each of the multiple cells in the field indicating frequency domain resource allocation to 0 or 1.

[0019] Other embodiments of the present disclosure provide a resource scheduling method performed by a terminal, which includes receiving a Downlink Control Information (DCI) message transmitted from a network device, wherein the DCI includes control information relating to a physical downlink shared channel (PDSCH) or physical uplink shared channel (PUSCH) in a plurality of cells, and the DCI is configured to schedule the PDSCH or 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 in accordance with the DCI.

[0020] In some embodiments, the method further includes receiving a Radio Resource Control (RRC) information element transmitted from a network device before the terminal receives a DCI transmitted from the network device, the RRC information element including information indicating a plurality of cells where PDSCH or PUSCH that can be scheduled by the DCI are located, and / or information indicating a cell for forwarding the DCI.

[0021] In some embodiments, the control information for PDSCH or PUSCH in 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, with respect to each of the multiple cells, if all or some of the bits of the dedicated control information corresponding to each of the multiple cells indicate invalid control information, it indicates that scheduling will not be performed with respect to the PDSCH or PUSCH in each of the multiple cells.

[0023] In some embodiments, all or some of the bits of the dedicated control information corresponding to each of the multiple cells indicating invalid control information includes setting all bits of the dedicated control information corresponding to each of the multiple cells in the field indicating frequency domain resource allocation to 0 or 1.

[0024] Further embodiments of the present disclosure provide a network device comprising a transmitter, or comprising a transmitter and a receiver, wherein the transmitter is configured to transmit downlink control information (DCI) to a terminal, the DCI comprising control information relating to a physical downlink shared channel (PDSCH) or physical uplink shared channel (PUSCH) in a plurality of cells, the DCI being configured to schedule a PDSCH or PUSCH in some or all of the plurality of cells, the transmitter being configured to transmit a PDSCH to a terminal in some or all of the cells, and the receiver being configured to receive a PUSCH transmitted from a terminal in some or all of the cells.

[0025] According to still other embodiments of the present disclosure, a terminal, wherein the terminal includes a receiver, or the terminal includes a transmitter and a receiver, the receiver is configured to receive a downlink control information (DCI) message transmitted from a network device, the DCI includes control information regarding a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in a plurality of cells, the DCI is configured to schedule the PDSCH or the PUSCH in some or all of the plurality of cells, the receiver is configured to receive the PDSCH transmitted from the network device in some or all of the cells according to the DCI, and the transmitter is configured to transmit the PUSCH to the network device in some or all of the cells according to the DCI, a terminal is provided.

[0026] According to still other embodiments of the present disclosure, a communication device, comprising a processor and a memory coupled to the processor for storing instructions, the instructions being configured to cause the processor to execute any one of the resource scheduling methods of the foregoing embodiments when executed by the processor, a communication device is provided.

[0027] According to still other embodiments of the present disclosure, a resource scheduling system is provided, comprising a network device according to any one of the foregoing embodiments and a terminal according to any one of the foregoing embodiments.

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

[0029] A brief introduction below is given to drawings that may be used in descriptions of embodiments or prior art in order to more clearly illustrate the embodiments of this disclosure or technical solutions in the prior art. It will be apparent that the drawings shown below are merely some embodiments of this disclosure. It will also be possible for those skilled in the art to obtain other drawings in accordance with such drawings, provided that no inventive effort is required. [Brief explanation of the drawing]

[0030] [Figure 1] This is a flowchart of resource scheduling methods according to some embodiments of the present disclosure. [Figure 2A] This is a schematic diagram of DCI according to some embodiments of the present disclosure. [Figure 2B] This is a schematic diagram of the DCI according to another embodiment of the present disclosure. [Figure 2C] This is a schematic diagram of a DCI according to yet another embodiment of the present disclosure. [Figure 3] This is a flowchart of a resource scheduling method according to another embodiment of the present disclosure. [Figure 4] This is a schematic diagram of a network device according to some embodiments of the present disclosure. [Figure 5] This is a schematic diagram of a terminal according to several embodiments of the present disclosure. [Figure 6] This is a schematic diagram of a communication device according to several embodiments of the present disclosure. [Figure 7] This is a schematic diagram of a communication device according to another embodiment of the present disclosure. [Figure 8] This is a schematic diagram of a resource scheduling system according to some embodiments of the present disclosure. [Modes for carrying out the invention]

[0031] The following provides a clear and complete description of the technical solutions of the embodiments of the Disclosure, with reference to the drawings of the embodiments. Clearly, only a few embodiments of the Disclosure, and not all embodiments of the Disclosure, are provided herein. The following description of at least one typical embodiment is in practice merely illustrative and is not intended in any way to be an limitation on the Disclosure, its application or use. All other embodiments that can be obtained by those skilled in the art based on the embodiments of the Disclosure without creative effort shall fall within the scope of the Disclosure.

[0032] The inventors have noticed that existing scheduling methods for PDSCH or PUSCH result in excessive overhead. Specifically, the characteristics of the 5G frequency band make it difficult to fully utilize spectral resources, leading to low spectral efficiency, low power efficiency, and so on.

[0033] The technical problem that this disclosure will solve is to propose a novel scheduling method for PDSCH or PUSCH that can improve the utilization and efficiency of spectral resources and reduce overhead.

[0034] This disclosure provides a resource scheduling method, which is described below with reference to Figures 1 to 3.

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

[0036] In step 102, the network device sends a DCI to the terminal, and the terminal receives the DCI sent from the network device.

[0037] Terminals are also known as UEs (User Equipment). Network devices are, for example, base stations. DCI (also known as Multi-Cell Scheduling DCI) includes, for example, control information regarding PDSCHs or PUSCHs in multiple cells, and the DCI is configured to schedule PDSCHs or PUSCHs in some or all of the multiple cells. In response to a network device scheduling a PDSCH, the DCI is configured to schedule PDSCHs in some or all of the multiple cells, and in response to a network device scheduling a PUSCH, the DCI is configured to schedule PUSCHs in some or all of the multiple cells. Multiple cells can include cells in the same frequency band or cells in different frequency bands, and one PDSCH or PUSCH can be scheduled in each cell.

[0038] It should be noted that the DCI in this 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 this disclosure can be replaced with carriers without affecting the application of the solution, which is within the scope of the protections of this disclosure and is not repeated here.

[0039] A cell's uplink carrier can include auxiliary uplink (SUL) carriers and normal uplink (NUL) carriers. For each cell, the DCI can be configured to schedule and indicate whether the cell's PUSCH is transported on a SUL carrier or a NUL carrier. The DCI can also be configured to schedule and indicate whether the cell's PUSCH is transported on both SUL and NUL carriers.

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

[0041] In some embodiments, for each of a plurality of cells, if the DCI does not schedule 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. Depending on whether the DCI is configured to schedule PDSCH or PUSCH for some of the plurality of cells, the PDSCH or PUSCH for some cells is not scheduled by the DCI. For these unscheduled PDSCH or PUSCH for the cells, the common control information indicates invalid control information, and / or the corresponding dedicated control information indicates invalid control information.

[0042] DCI can indicate invalid control information for a PDSCH or PUSCH in a particular cell, indicating that scheduling will not be performed for that PDSCH or PUSCH in that cell. For example, all or some of the bits in the dedicated control information corresponding to a cell may indicate invalid control information, indicating that scheduling will not be performed for that PDSCH or PUSCH in that cell. For example, all or some of the bits in the dedicated control information indicating invalid control information may be set to a pre-set value. For example, bits in the dedicated control information corresponding to a cell to indicate one or more of the following: frequency domain resource allocation (FDRA), modulation / coding scheme, or number of hybrid automatic retransmission request (HARQ) processes may be set to 0 or 1. As another example, in a case where common control information for multiple cells provides a joint display of separate information about PDSCHs or PUSCHs in those cells, invalid control information may be indicated for a PDSCH or PUSCH in one of those cells.

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

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

[0045] Common control information for multiple cells may include one or more types of information, each occupying one field. For example, common control information for multiple cells may include, but are not limited to, at least one of the following: an identifier for the 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 PDSCH to HARQ.

[0046] The dedicated control information corresponding to each cell may include one or more types of information, each occupying one field. For example, the dedicated control information corresponding to each cell may include, but is not limited to, at least one of the following: a Bandwidth Part (BWP) indicator, a modulation / coding scheme, a New Data indicator, a redundant version, or a HARQ process number.

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

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

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

[0050] As shown in Figure 2A, dedicated control information corresponding to the same cell occupies consecutive bits in separate fields. For example, the dedicated control information corresponding to cell 1 includes three types of information, each 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, each 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 whether or not there may 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 one field, and the bit positions occupied by the information corresponding to separate cells occupying the same field are contiguous and arranged in a predetermined order.

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

[0053] In some embodiments, a predetermined order is the ascending or descending order of the cell indices of multiple cells in the DCI, from the lower bit position to the higher bit position. The cell index is, for example, the Serv Cell Index (ServCellIndex) of each cell. In embodiments where the DCI schedules PUSCH in the cell for simultaneous transmission on the SUL and NUL carriers, if the cell's uplink carrier is configured to include a SUL carrier and a NUL carrier, then 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 of SUL before NUL, or NUL before SUL. Information corresponding to SUL and NUL carriers occupying the same field is arranged in the order of SUL before NUL, or NUL before SUL.

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

[0055] In other embodiments, the radio resource control (RRC) information element transmitted from the network device to the terminal includes bit position indices of dedicated control information corresponding to multiple cells, where a predetermined order is an ascending or descending order of the bit position indices of the dedicated control information corresponding to multiple cells from the lower bit position to the upper bit position in the DCI. It is also possible that the bit position indices of the dedicated control information for each cell are configured in the RRC information element. For example, the bit position indices of the dedicated control information for a cell corresponding to a serving cell configuration information element are configured in the MultiCellSchedulingConfig information element of the serving cell configuration information element in the RRC information element.

[0056] In some embodiments, common control information for multiple cells occupies consecutive bit positions in the DCI, while 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 for 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 for multiple cells occupies multiple fields, the bits of those fields are consecutive. All bits of the dedicated control information corresponding to each cell can be consecutive bits. The common control information for multiple cells can occupy lower bit positions among all the bits of the DCI.

[0057] In some embodiments, common control information for a plurality of cells, and 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 the configuration information of the plurality of 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 Figure 2C, fields 1 and 2, occupied by common control information for multiple cells, have a fixed number of bits independent of the cell configuration information and are positioned at a lower bit location compared to field 3, which has a certain number of bits determined by the cell configuration information. 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 for multiple cells can be related to the configuration information of multiple cells. For example, the bits of the BWP indicator in the common control information for multiple cells jointly indicate the BWP to be activated in each cell, and the number of bits is related to the number of BWPs configured in the cell. With the above arrangement, the bit position of the first field in DCI is fixed, that is, its bit position does not change with the various conditions of the scheduled cell, thereby enabling the terminal to quickly interpret this information.

[0059] In step 104, the network device either sends a PDSCH to a terminal or receives a PUSCH sent from a terminal in some or all of the cells. In response, the terminal either receives a PDSCH sent from the network device or sends a PUSCH to the network device in some or all of the cells according to the DCI.

[0060] In the above embodiment, the DCI transmitted from the network device to the terminal includes control information regarding PDSCH or PUSCH in multiple cells, making it possible to schedule PDSCH or PUSCH in some or all of the multiple cells according to the actual needs. After receiving the DCI transmitted from the network device, the terminal can know which cells will receive PDSCH or transmit PUSCH, thereby achieving data transmission between the network device and the terminal. The solution of the above embodiment makes it possible to achieve scheduling of PDSCH or PUSCH for multiple cells using a single DCI, which can solve the problem of how to make full use of spectral resources when there are multiple narrowband carriers in scattered frequency bands in the low-frequency range or mid-frequency range, reduce control channel overhead, reduce the possibility of control channel collisions, improve throughput, reduce terminal power consumption, and effectively improve the flexibility, spectral efficiency, power efficiency, etc., of scheduling discrete or broadband spectra.

[0061] Other embodiments of the resource scheduling method of this disclosure are described below with reference to Figure 3.

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

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

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

[0065] In other embodiments, the RRC information element includes information indicating a cell for transferring the DCI, and this information is configured to indicate to the terminal to receive the DCI in the cell transferring the DCI.

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

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

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

[0069] In some embodiments, the serving cell configuration information element in the RRC information element includes second display information, the second display information is configured to indicate that a DCI will be transferred in the cell corresponding to the serving cell configuration information element, or the second display information is configured to indicate the cell in which a DCI is placed to schedule a PDSCH or PUSCH in the cell corresponding to the serving cell configuration information element.

[0070] For example, a 1-bit second indicator can be added to the serving cell configuration information element corresponding to the cell on which the DCI is transferred, indicating that the cell is configured to transfer the DCI. Alternatively, a pre-set number of bits (e.g., 1 bit) of second indicator information can be added to the serving cell configuration information element corresponding to each cell. If the value of the second indicator 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 indicator information is a fourth value (e.g., 0), it indicates that the cell is not configured to transfer the DCI. Alternatively, the second indicator information can be added to the serving cell configuration information element corresponding to each cell or multiple cells on which a PDSCH or PUSCH that can be scheduled using DCI is located, indicating the cell index of the cell transferring the DCI. For example, the second indicator information is included in MultiCellSchedulingConfig. For example, if the second display information is included in the serving cell configuration information element, by default, the PDSCH or PUSCH of the cell corresponding to the serving cell configuration information element can be scheduled using DCI, and therefore it is not necessary to include the first display information in the serving cell configuration information element. The display method can be set according to actual needs and is not limited to the examples given herein.

[0071] In step S304, the network device sends a DCI to the terminal, and the terminal receives the DCI sent from the network device.

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

[0073] Specific embodiments of steps S304 to S306 can be referenced to steps S102 to S104, and further details are not described herein.

[0074] The above embodiment dynamically represents multiple cells that can be scheduled by DCI and cells for transferring DCI via RRC information elements, thereby achieving a flexible configuration of DCI and cells that can be scheduled by DCI, and enabling balancing of DCI load across multiple cells.

[0075] This disclosure also provides a network device, which is described below with reference to Figure 4.

[0076] Figure 4 is a structural diagram of a network device according to some embodiments of the present disclosure. As shown in Figure 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 the terminal, which includes control information regarding physical downlink shared channels (PDSCH) or physical uplink shared channels (PUSCH) in multiple cells, and the DCI is configured to schedule PDSCH or PUSCH in some or all of the multiple cells, and the transmitter is configured to transmit PDSCH to the terminal in some or all of the cells.

[0078] In some embodiments, the transmitter 410 is further configured to transmit radio resource control (RRC) information elements to the terminal, which include information indicating a plurality of cells where PDSCH or PUSCH that can be scheduled by DCI are located.

[0079] In some embodiments, a serving cell configuration information element in an RRC information element includes first display information, which is configured to indicate that a PDSCH or PUSCH in the 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, which includes information indicating a cell for transmitting DCIs, in order to enable the terminal to receive DCIs in a cell for transmitting DCIs.

[0081] In some embodiments, the serving cell configuration information element in the RRC information element includes second display information, the second display information is configured to indicate that a DCI will be transferred in the cell corresponding to the serving cell configuration information element, or the second display information is configured to indicate the cell in which a DCI is placed to schedule a PDSCH or PUSCH in the cell corresponding to the serving cell configuration information element.

[0082] In some embodiments, the control information for PDSCH or PUSCH in 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, common control information for multiple cells occupies consecutive bit positions in the DCI, while 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 for 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, common control information for a plurality of cells, and 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 the configuration information of the plurality of 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, while bit positions occupied by dedicated control information corresponding to different cells are arranged in a predetermined order in the DCI.

[0086] In some embodiments, the dedicated control information corresponding to each of the multiple cells includes one or more types of information, each of which occupies one field, and the bit positions occupied by the information corresponding to separate 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 the cell indices of multiple cells from the lower bit position to the higher bit position in the DCI, or the RRC information element transmitted from the network device to the terminal includes the bit position indices of dedicated control information corresponding to multiple cells, and the predetermined order is an ascending or descending order of the bit position indices of dedicated control information corresponding to multiple cells from the lower bit position to the higher bit position in the DCI.

[0088] In some embodiments, with respect to each of the multiple cells, if DCI does not schedule a PDSCH or PUSCH for each of the multiple cells, the common control information indicates invalid control information for each of the multiple cells, and / or the dedicated control information corresponding to each of the multiple cells indicates invalid control information.

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

[0090] Details regarding the DCI and RRC information elements can be referenced to the embodiments described above and are not repeated herein.

[0091] This disclosure also provides a terminal, which is described below with reference to Figure 5.

[0092] Figure 5 is a structural diagram of a terminal according to some embodiments of the present disclosure. As shown in Figure 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 downlink control information (DCI) messages transmitted from a network device, the DCI containing control information about physical downlink shared channels (PDSCH) or physical uplink shared channels (PUSCH) in multiple cells, the DCI being configured to schedule PDSCH or PUSCH in some or all of the multiple cells, and the receiver 510 being configured to receive PDSCH transmitted from the network device in some or all of the cells according to the DCI.

[0094] In some embodiments, the receiver 510 is further configured to receive radio resource control (RRC) information elements transmitted from a network device, the RRC information elements including information indicating a plurality of cells where PDSCH or PUSCH that can be scheduled by DCI are located, and / or information indicating cells for forwarding DCI.

[0095] Transmitter 520 is configured to transmit PDSCH to network devices in some or all of the cells according to DCI.

[0096] Details regarding the DCI and RRC information elements can be referenced to the embodiments described above and are not repeated herein.

[0097] The communication devices in embodiments of this disclosure (e.g., network devices or terminals) can be implemented by various computing devices or computer systems, which are described below with reference to Figures 6 and 7.

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

[0099] Memory 610 may include, for example, system memory, fixed non-volatile storage media, etc. System memory stores, for example, the operating system, applications, boot loader, database, and other programs.

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

[0101] This disclosure also provides a resource scheduling system, which is described below with reference to Figure 8.

[0102] Figure 8 is a structural diagram of a resource scheduling system according to several embodiments of the present disclosure. As shown in Figure 8, system 8 of this embodiment is a network device according to one of the embodiments described above. 40 and terminal 50 Includes.

[0103] Those skilled in the art will understand that embodiments of the present disclosure can be provided as methods, systems, or computer program products. Accordingly, embodiments of the present disclosure can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments that include both hardware and software elements. Furthermore, the present disclosure can take the form of a computer program product embodied on one or more computer-usable non-temporary storage media (including, but not limited to, disk storage, CD-ROMs, optical storage devices, etc.) having computer-usable program code embodied within.

[0104] This disclosure is described with reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a dedicated computer, an embedded processor, or other programmable data processing device to generate a machine, thereby generating means for performing one or more flows in the flowchart and / or one or more blocks in the block diagram.

[0105] These computer program instructions may also be stored in a computer-readable storage device capable of instructing a computer or other programmable data processing device to operate in a specific manner, thereby producing a product that includes instruction means for performing functions specified in one or more flows of a flowchart and / or one or more blocks of a block diagram.

[0106] These computer program instructions can also be loaded onto a computer or other programmable data processing device to execute a series of operational steps on that computer or other programmable data processing device, thereby generating a computer execution process, in which these instructions executed on that computer or other programmable data processing device provide steps to perform functions specified in one or more flows of a flowchart and / or one or more blocks of a block diagram.

[0107] The foregoing describes preferred embodiments of the Disclosure and is not an limitation thereto. Any modifications, substitutions, or improvements within the scope of the Disclosure shall be protected within the scope of the Disclosure, within the spirit and principles of the Disclosure.

Claims

1. Transmitting a Radio Resource Control (RRC) information element to a terminal before transmitting Downlink Control Information (DCI) to the terminal, wherein the RRC information element includes information indicating a plurality of cells where physical downlink shared channels (PDSCHs) that can be scheduled by the DCI are located, and the serving cell configuration information element in the RRC information element includes first display information, and the first display information is configured to indicate that the PDSCH in the cell corresponding to the serving cell configuration information element can be scheduled by the DCI, and so on. Transmitting the DCI to the terminal, wherein the DCI includes control information relating to the PDSCH in the plurality of cells, the DCI is configured to schedule the PDSCH in some or all of the plurality of cells, the control information relating to the PDSCH in the plurality of cells includes common control information for the plurality of cells and dedicated control information corresponding to each of the plurality of cells, and for each of the plurality of cells, if all or some of the bits of the dedicated control information corresponding to each of the plurality of cells indicate invalid control information, it indicates that scheduling will not be performed for the PDSCH in each of the plurality of cells, and if all or some of the bits of the dedicated control information corresponding to each of the plurality of cells indicate invalid control information, then all bits of the dedicated control information corresponding to each of the plurality of cells in the field indicating frequency domain resource allocation are set to 0 or 1. In some or all of the aforementioned multiple cells, the PDSCH is transmitted to the terminal. Resource scheduling methods performed by network devices, including [specific examples of network devices].

2. The resource scheduling method according to claim 1, wherein the RRC information element includes information indicating the cell for transferring the DCI, in order to enable the terminal to receive the DCI in the cell for transferring the DCI.

3. The resource scheduling method according to claim 2, wherein the serving cell configuration information element in the RRC information element includes second display information, the second display information is configured to indicate that the DCI will be transferred in the cell corresponding to the serving cell configuration information element, or the second display information is configured to indicate the cell in which the DCI is located for scheduling the PDSCH in the cell corresponding to the serving cell configuration information element.

4. 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 position occupied by the common control information of the plurality of cells is lower than the bit position occupied by the dedicated control information corresponding to each of the plurality of cells. The resource scheduling method according to claim 1.

5. 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, and the plurality of fields include a first field having a fixed number of bits and a second field having a certain number of bits determined by the configuration information of the plurality of cells, and in all of the fields in the DCI, the bit positions occupied by the first field are lower than the bit positions occupied by the second field. The resource scheduling method according to claim 1.

6. The dedicated control information corresponding to the same cell occupies consecutive bit positions, The bit positions occupied by the dedicated control information corresponding to separate cells are arranged in a predetermined order in the DCI. The resource scheduling method according to claim 1.

7. The dedicated control information corresponding to each of the plurality of cells includes one or more types of information, and each of the one or more types of information occupies one field. Bit positions occupied by information corresponding to separate cells occupying the same field are consecutive and arranged in a predetermined order. The resource scheduling method according to claim 1.

8. The predetermined order is the ascending or descending order of the cell indices of the plurality of cells from the lower bit position to the higher bit position in the DCI, or The RRC information element transmitted to the terminal includes the bit position index of the dedicated control information corresponding to the plurality of cells, and the predetermined order is in ascending or descending order of the bit position index of the dedicated control information corresponding to the plurality of cells from the lower bit position to the upper bit position in the DCI. The resource scheduling method according to claim 7.

9. With respect to each of the plurality of cells, if the DCI does not schedule a PDSCH 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. The resource scheduling method according to claim 1.

10. Receiving a Radio Resource Control (RRC) information element transmitted from a network device before the terminal receives downlink control information (DCI) transmitted from the network device, wherein the RRC information element includes information indicating a plurality of cells where physical downlink shared channels (PDSCHs) that can be scheduled by the DCI are located, and the serving cell configuration information element in the RRC information element includes first display information, the first display information is configured to indicate that the PDSCH in the cell corresponding to the serving cell configuration information element can be scheduled by the DCI, and receiving Receiving a DCI message transmitted from the network device, wherein the DCI includes control information relating to the PDSCH in the plurality of cells, the DCI is configured to schedule the PDSCH in some or all of the plurality of cells, the control information relating to the PDSCH in the plurality of cells includes common control information for the plurality of cells and dedicated control information corresponding to each of the plurality of cells, and for each of the plurality of cells, if all or some of the bits of the dedicated control information corresponding to each of the plurality of cells indicate invalid control information, it indicates that scheduling will not be performed for the PDSCH in each of the plurality of cells, and if all or some of the bits of the dedicated control information corresponding to each of the plurality of cells indicate invalid control information, then all bits of the dedicated control information corresponding to each of the plurality of cells in the field indicating frequency domain resource allocation are set to 0 or 1. In accordance with the DCI, some or all of the multiple cells receive the PDSCH transmitted from the network device, A resource scheduling method performed by the terminal, including [specific example].

11. The resource scheduling method according to claim 10, wherein the RRC information element includes information indicating a cell for transferring the DCI.

12. A network device comprising a transmitter, The transmitter is configured to transmit radio resource control (RRC) information elements to the terminal before transmitting downlink control information (DCI) to the terminal, wherein the RRC information elements include information indicating a plurality of cells where physical downlink shared channels (PDSCHs) that can be scheduled by the DCI are located, and the serving cell configuration information elements in the RRC information elements include first display information, wherein the first display information is configured to indicate that the PDSCH in the cell corresponding to the serving cell configuration information element can be scheduled by the DCI, and The DCI is configured to transmit to the terminal, the DCI includes control information relating to the PDSCH in the plurality of cells, the DCI is configured to schedule the PDSCH in some or all of the plurality of cells, the control information relating to the PDSCH in the plurality of cells includes common control information for the plurality of cells and dedicated control information corresponding to each of the plurality of cells, and for each of the plurality of cells, if all or some of the bits of the dedicated control information corresponding to each of the plurality of cells indicate invalid control information, it indicates that scheduling will not be performed for the PDSCH in each of the plurality of cells, and if all or some of the bits of the dedicated control information corresponding to each of the plurality of cells indicate invalid control information, then all bits of the dedicated control information corresponding to each of the plurality of cells in the field indicating frequency domain resource allocation are set to 0 or 1. A network device in which the transmitter is configured to transmit the PDSCH to the terminal in some or all of the plurality of cells.

13. A terminal, wherein the terminal is equipped with a receiver, The receiver is configured to receive radio resource control (RRC) information elements transmitted from the network device before the terminal receives downlink control information (DCI) transmitted from the network device, wherein the RRC information elements include information indicating a plurality of cells where physical downlink shared channels (PDSCHs) that can be scheduled by the DCI are located, and the serving cell configuration information elements in the RRC information elements include first display information, wherein the first display information is configured to indicate that the PDSCH in the cell corresponding to the serving cell configuration information element can be scheduled by the DCI, and The DCI is configured to receive DCI messages transmitted from the network device, the DCI includes control information relating to the PDSCH in the plurality of cells, the DCI is configured to schedule the PDSCH in some or all of the plurality of cells, the control information relating to the PDSCH in the plurality of cells includes common control information for the plurality of cells and dedicated control information corresponding to each of the plurality of cells, and for each of the plurality of cells, if all or some of the bits of the dedicated control information corresponding to each of the plurality of cells indicate invalid control information, it indicates that scheduling will not be performed for the PDSCH in each of the plurality of cells, and if all or some of the bits of the dedicated control information corresponding to each of the plurality of cells indicate invalid control information, then all bits of the dedicated control information corresponding to each of the plurality of cells in the field indicating frequency domain resource allocation are set to 0 or 1. A terminal in which the receiver is configured to receive the PDSCH transmitted from the network device in some or all of the plurality of cells in accordance with the DCI.

14. A communication device, Processor and A memory coupled to the processor for storing instructions, wherein when the instruction is executed by the processor, the memory causes the processor to execute the resource scheduling method described in any one of claims 1 to 9. A communication device equipped with the following features.

15. A resource scheduling system comprising the network device described in claim 12 and the terminal described in claim 13.

Images