Cross-node scheduling method and apparatus, terminal and network device

Abstract

The present invention provides a cross-node scheduling method and apparatus, a terminal and a network device. The method comprises: a terminal receives a dynamic scheduling command sent by a source network node, wherein the dynamic scheduling command is used for activating a transmission resource and / or scheduling a transmission resource, and the transmission resource is a transmission resource for the terminal to perform data transmission with a target network node; the terminal performs data transmission with the target network node by means of the transmission resource.

Description

Cross-node scheduling method, device, terminal and network equipment

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on December 15, 2023, with application number 202311733700.7 and application name “Cross-node scheduling method, device, terminal and network equipment”, the entire contents of which are incorporated by reference in this disclosure. Technical Field

[0002] The present disclosure relates to the field of communication technologies, and in particular to a cross-node scheduling method, apparatus, terminal, and network equipment. Background Art

[0003] In wireless mobile communication systems in the related art, carrier aggregation (CA) is introduced to enable cross-carrier scheduling. However, cross-carrier scheduling based on CA must meet the following conditions: the multiple cells scheduled across the carriers belong to the same base station, the cells included in the CA share a common media access control (MAC) entity for scheduling, the multiple cells and their configurations have been configured to the terminal (i.e., the terminal knows the uplink and downlink resource configurations and other scheduling-related configurations of the cells included in the CA), and the schedulable carriers must be activated.

[0004] Only CA can achieve cross-cell scheduling, but this has many limitations. Sixth-generation mobile communication technology (6G) aims to achieve a user-centric network, requiring cross-node scheduling between any nodes to achieve on-demand dynamic use of physical layer resources. Therefore, the cross-cell scheduling methods used in related technologies are not applicable to 6G systems.

[0005] Summary of the Invention

[0006] The purpose of the present disclosure is to provide a cross-node scheduling method, apparatus, terminal and network equipment to solve the problem of cross-node scheduling in 6G system.

[0007] An embodiment of the present disclosure provides a cross-node scheduling method, including:

[0008] The terminal receives a dynamic scheduling command sent by a source network node; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, the transmission resources being transmission resources for data transmission between the terminal and the target network node;

[0009] The terminal performs data transmission with the target network node according to the transmission resource.

[0010] In some embodiments, the dynamic scheduling command is carried via a media access control MAC layer control command, and / or the dynamic scheduling command is carried via a physical layer downlink control channel (Physical downlink control channel, PDCCH).

[0011] In some embodiments, the dynamic scheduling command includes at least one of the following information:

[0012] The identification of the target network node;

[0013] Random access resource indication information;

[0014] Transmission resources allocated by network nodes;

[0015] Transmission delay indication information;

[0016] Downlink timing offset;

[0017] Uplink timing advance;

[0018] After the terminal receives the dynamic scheduling command, the activation status information of the source network node;

[0019] The activated bandwidth part (Bandwidth Part, BWP) of the target network node.

[0020] In some embodiments, the random access resource indication information includes:

[0021] Instruction information for initiating non-contention random access, including information on resources for non-contention random access;

[0022] or

[0023] Instruction information for initiating contention random access.

[0024] In some embodiments, the transmission resource allocated by the network node is determined based on configuration information of the source network node, or based on configuration information of the target network node;

[0025] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0026] In some embodiments, the transmission delay indication information is used to indicate a sending time of the data transmission indicated by the dynamic scheduling command;

[0027] The transmission delay indication information includes at least one of the following:

[0028] an offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command;

[0029] The activation time and transmission delay value of the target network node;

[0030] The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

[0031] In some embodiments, when the dynamic scheduling command does not include an activated BWP of the target network node, the method further comprises:

[0032] Determining that a target BWP is an activated BWP of the target network node, the target BWP comprising one of the following:

[0033] The initial BWP of the target network node;

[0034] Preset BWP;

[0035] Preconfigured first BWP.

[0036] In some embodiments, before receiving the dynamic scheduling command sent by the source network node, the method further includes:

[0037] Acquire random access resource configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes;

[0038] The performing data transmission with the target network node according to the transmission resource includes:

[0039] initiating random access at the target network node according to the first random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node;

[0040] The first random access resource is determined according to the random access resource configuration of the target network node.

[0041] In some embodiments, transmitting data with the target network node according to the transmission resource includes:

[0042] initiating random access with a target network node at the source network node according to the second random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node;

[0043] The second random access resource is determined according to the random access resource configuration of the source network node.

[0044] In some embodiments, before receiving the dynamic scheduling command sent by the source network node, the method further includes:

[0045] Acquire configuration information of one or more candidate network nodes, where the target network node is one or more network nodes among the candidate network nodes; the configuration information of the candidate network nodes includes at least: physical layer resource configuration information of the candidate network nodes and / or scheduling parameter configuration information of the candidate network nodes;

[0046] The performing data transmission with the target network node according to the transmission resource includes:

[0047] performing data transmission with the target network node according to the first allocated resources indicated by the dynamic scheduling command;

[0048] The first allocated resources are determined based on configuration information of the target network node.

[0049] In some embodiments, transmitting data with the target network node according to the transmission resource includes:

[0050] performing data transmission with the target network node according to the second allocated resources indicated by the dynamic scheduling command;

[0051] The second allocated resources are determined based on configuration information of the source network node, and the configuration information of the source network node at least includes: physical layer resource configuration information of the source network node and / or scheduling parameter configuration information of the source network node.

[0052] An embodiment of the present disclosure provides a cross-node scheduling method, including:

[0053] The source network node sends a dynamic scheduling command to the terminal; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, and the transmission resources are transmission resources for data transmission between the terminal and the target network node.

[0054] In some embodiments, the dynamic scheduling command is carried via a medium access control (MAC) layer control command, and / or the dynamic scheduling command is carried via a PDCCH.

[0055] In some embodiments, the dynamic scheduling command includes at least one of the following information:

[0056] The identification of the target network node;

[0057] Random access resource indication information;

[0058] Transmission resources allocated by network nodes;

[0059] Transmission delay indication information;

[0060] Downlink timing offset;

[0061] Uplink timing advance;

[0062] After the terminal receives the dynamic scheduling command, the activation status information of the source network node;

[0063] Activate BWP of target network node.

[0064] In some embodiments, the random access resource indication information includes:

[0065] Instruction information for initiating non-contention random access, including information on resources for non-contention random access;

[0066] or

[0067] Instruction information for initiating contention random access.

[0068] In some embodiments, the transmission resource allocated by the network node is determined based on configuration information of the source network node, or based on configuration information of the target network node;

[0069] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0070] In some embodiments, the transmission delay indication information is used to indicate a sending time of the data transmission indicated by the dynamic scheduling command;

[0071] The transmission delay indication information includes at least one of the following:

[0072] an offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command;

[0073] The activation time and transmission delay value of the target network node;

[0074] The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

[0075] In some embodiments, when the dynamic scheduling command indicates a random access resource, the random access resource is determined according to the random access resource configuration of the source network node, or according to the random access resource configuration of the target network node.

[0076] In some embodiments, the method further comprises:

[0077] Random access resource configuration information of one or more candidate network nodes is sent to the terminal; the target network node is one or more network nodes among the candidate network nodes.

[0078] In some embodiments, when the dynamic scheduling command indicates the transmission resources allocated by the network node, the transmission resources allocated by the network node are determined based on the configuration information of the target network node or based on the configuration information of the source network node;

[0079] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0080] In some embodiments, the method further comprises:

[0081] Sending configuration information of one or more candidate network nodes to the terminal, where the target network node is one or more network nodes among the candidate network nodes;

[0082] The configuration information of the candidate network node includes at least: physical layer resource configuration information of the candidate network node and / or scheduling parameter configuration information of the candidate network node.

[0083] In some embodiments, the method further comprises:

[0084] First information is sent to the target network node, where the first information includes relevant information about the transmission resource.

[0085] An embodiment of the present disclosure provides a terminal, including: a memory, a transceiver, and a processor:

[0086] A memory for storing a computer program; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0087] Receiving a dynamic scheduling command sent by a source network node; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, wherein the transmission resources are transmission resources for data transmission between the terminal and the target network node;

[0088] Perform data transmission with the target network node according to the transmission resource.

[0089] In some embodiments, the dynamic scheduling command is carried via a medium access control MAC layer control command, and / or the dynamic scheduling command is carried via a physical layer downlink control channel PDCCH.

[0090] In some embodiments, the dynamic scheduling command includes at least one of the following information:

[0091] The identification of the target network node;

[0092] Random access resource indication information;

[0093] Transmission resources allocated by network nodes;

[0094] Transmission delay indication information;

[0095] Downlink timing offset;

[0096] Uplink timing advance;

[0097] After the terminal receives the dynamic scheduling command, the activation status information of the source network node;

[0098] The active bandwidth portion BWP of the target network node.

[0099] In some embodiments, the random access resource indication information includes:

[0100] Instruction information for initiating non-contention random access, including information on resources for non-contention random access;

[0101] or

[0102] Instruction information for initiating contention random access.

[0103] In some embodiments, the transmission resource allocated by the network node is determined based on configuration information of the source network node, or based on configuration information of the target network node;

[0104] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0105] In some embodiments, the transmission delay indication information is used to indicate a sending time of the data transmission indicated by the dynamic scheduling command;

[0106] The transmission delay indication information includes at least one of the following:

[0107] an offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command;

[0108] The activation time and transmission delay value of the target network node;

[0109] The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

[0110] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0111] Determining that a target BWP is an activated BWP of the target network node, the target BWP comprising one of the following:

[0112] The initial BWP of the target network node;

[0113] Preset BWP;

[0114] Preconfigured first BWP.

[0115] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0116] Acquire random access resource configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes;

[0117] The performing data transmission with the target network node according to the transmission resource includes:

[0118] initiating random access at the target network node according to the first random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node;

[0119] The first random access resource is determined according to the random access resource configuration of the target network node.

[0120] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0121] initiating random access with a target network node at the source network node according to the second random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node;

[0122] The second random access resource is determined according to the random access resource configuration of the source network node.

[0123] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0124] Acquire configuration information of one or more candidate network nodes, where the target network node is one or more network nodes among the candidate network nodes; the configuration information of the candidate network nodes includes at least: physical layer resource configuration information of the candidate network nodes and / or scheduling parameter configuration information of the candidate network nodes;

[0125] performing data transmission with the target network node according to the first allocated resources indicated by the dynamic scheduling command;

[0126] The first allocated resources are determined based on configuration information of the target network node.

[0127] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0128] performing data transmission with the target network node according to the second allocated resources indicated by the dynamic scheduling command;

[0129] The second allocated resources are determined based on configuration information of the source network node, and the configuration information of the source network node at least includes: physical layer resource configuration information of the source network node and / or scheduling parameter configuration information of the source network node.

[0130] An embodiment of the present disclosure provides a network device, including: a memory, a transceiver, and a processor:

[0131] A memory for storing a computer program; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0132] Sending a dynamic scheduling command to the terminal; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, where the transmission resources are transmission resources for data transmission between the terminal and the target network node.

[0133] In some embodiments, the dynamic scheduling command is carried via a medium access control (MAC) layer control command, and / or the dynamic scheduling command is carried via a PDCCH.

[0134] In some embodiments, the dynamic scheduling command includes at least one of the following information:

[0135] The identification of the target network node;

[0136] Random access resource indication information;

[0137] Transmission resources allocated by network nodes;

[0138] Transmission delay indication information;

[0139] Downlink timing offset;

[0140] Uplink timing advance;

[0141] After the terminal receives the dynamic scheduling command, the activation status information of the source network node;

[0142] Activate BWP of target network node.

[0143] In some embodiments, the random access resource indication information includes:

[0144] Instruction information for initiating non-contention random access, including information on resources for non-contention random access;

[0145] or

[0146] Instruction information for initiating contention random access.

[0147] In some embodiments, the transmission resource allocated by the network node is determined based on configuration information of the source network node, or based on configuration information of the target network node;

[0148] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0149] In some embodiments, the transmission delay indication information is used to indicate a sending time of the data transmission indicated by the dynamic scheduling command;

[0150] The transmission delay indication information includes at least one of the following:

[0151] an offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command;

[0152] The activation time and transmission delay value of the target network node;

[0153] The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

[0154] In some embodiments, when the dynamic scheduling command indicates a random access resource, the random access resource is determined according to the random access resource configuration of the source network node, or according to the random access resource configuration of the target network node.

[0155] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0156] Random access resource configuration information of one or more candidate network nodes is sent to the terminal; the target network node is one or more network nodes among the candidate network nodes.

[0157] In some embodiments, when the dynamic scheduling command indicates the transmission resources allocated by the network node, the transmission resources allocated by the network node are determined based on the configuration information of the target network node or based on the configuration information of the source network node;

[0158] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0159] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0160] Sending configuration information of one or more candidate network nodes to the terminal, where the target network node is one or more network nodes among the candidate network nodes;

[0161] The configuration information of the candidate network node includes at least: physical layer resource configuration information of the candidate network node and / or scheduling parameter configuration information of the candidate network node.

[0162] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0163] First information is sent to the target network node, where the first information includes relevant information about the transmission resource.

[0164] An embodiment of the present disclosure provides a cross-node scheduling device, including:

[0165] A first receiving unit, configured to receive a dynamic scheduling command sent by a source network node; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, wherein the transmission resources are transmission resources for data transmission between the terminal and the target network node;

[0166] A transmission unit is configured to perform data transmission with the target network node according to the transmission resource.

[0167] An embodiment of the present disclosure provides a cross-node scheduling device, including:

[0168] The first sending unit is configured to send a dynamic scheduling command to the terminal; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, where the transmission resources are transmission resources used for data transmission between the terminal and the target network node.

[0169] An embodiment of the present disclosure provides a processor-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the above-mentioned cross-node scheduling method are implemented.

[0170] The beneficial effects of the above technical solution disclosed herein are:

[0171] In an embodiment of the present disclosure, a source network node sends a dynamic scheduling command to a terminal, activating and / or scheduling transmission resources for data transmission between the terminal and a target network node; the terminal then performs data transmission with the target network node based on the transmission resources. This method can dynamically schedule the transmission resources of a target network node from the source network node in any network node deployment, enabling the terminal to dynamically initiate data transmission with any target network node, while also activating the target network node on demand, thereby achieving network energy conservation. BRIEF DESCRIPTION OF THE DRAWINGS

[0172] FIG1 shows a schematic diagram of a cross-node scheduling method according to an embodiment of the present disclosure;

[0173] FIG2 shows a second flow chart of the cross-node scheduling method according to an embodiment of the present disclosure;

[0174] FIG3 shows a third flow chart of the cross-node scheduling method according to an embodiment of the present disclosure;

[0175] FIG4 shows a fourth flow chart of the cross-node scheduling method according to an embodiment of the present disclosure;

[0176] FIG5 shows a fifth flow chart of the cross-node scheduling method according to an embodiment of the present disclosure;

[0177] FIG6 shows a sixth flow chart of the cross-node scheduling method according to an embodiment of the present disclosure;

[0178] FIG7 shows one structural diagram of a cross-node scheduling apparatus according to an embodiment of the present disclosure;

[0179] FIG8 shows a second structural diagram of the cross-node scheduling device according to an embodiment of the present disclosure;

[0180] FIG9 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

[0181] FIG10 is a schematic structural diagram of a network device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0182] To make the technical problems, technical solutions, and advantages to be solved by the present disclosure more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present disclosure. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. In addition, for the sake of clarity and brevity, descriptions of known functions and configurations have been omitted.

[0183] It should be understood that references throughout this specification to "one embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present disclosure. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout this specification do not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0184] In the various embodiments of the present disclosure, it should be understood that the size of the serial numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure.

[0185] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0186] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0187] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0188] The embodiments of the present disclosure provide a cross-node scheduling method, apparatus, terminal, and network device to solve the problem of cross-node scheduling in a 6G system.

[0189] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0190] As shown in FIG1 , an embodiment of the present disclosure provides a cross-node scheduling method, which is applied to a terminal and specifically includes the following steps:

[0191] Step 101: A terminal receives a dynamic scheduling command sent by a source network node; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, where the transmission resources are transmission resources used for data transmission between the terminal and the target network node.

[0192] Step 102: The terminal performs data transmission with the target network node according to the transmission resource.

[0193] In this embodiment, the source network node is the terminal's current transmission node or cell, and the target network node is the terminal's target transmission node or cell for inter-node transmission. The source network node sends a dynamic scheduling command to the terminal to activate and / or schedule inter-node transmission resources. The dynamic scheduling command can be used to activate transmission resources for inter-node transmission or to schedule transmission resources for inter-node transmission. The scheduling of transmission resources can refer to resource allocation.

[0194] In some embodiments, when the terminal transmits data with the target network node based on the transmission resources, it can also transmit data with the source network node, including two transmission situations: (1) the source network node and the target network node use the same transmission resources to transmit with the terminal, that is, joint transmission; (2) the source network node and the target network node use different transmission resources to transmit with the terminal.

[0195] The network nodes described in the embodiments of the present disclosure are, for example, transmission-reception points (TRPs), cells, and available resource sets. An available resource set refers to the entirety of a terminal that can perform access, scheduling, and transmission, and may include one or more TRPs or cells.

[0196] In an embodiment of the present disclosure, a source network node sends a dynamic scheduling command to a terminal, activating and / or scheduling transmission resources for data transmission between the terminal and a target network node; the terminal then performs data transmission with the target network node based on the transmission resources. This method can dynamically schedule the transmission resources of a target network node from the source network node in any network node deployment, enabling the terminal to dynamically initiate data transmission with any target network node, while also activating the target network node on demand, thereby achieving network energy conservation.

[0197] In some embodiments, the dynamic scheduling command is carried via a medium access control MAC layer control command, and / or the dynamic scheduling command is carried via a physical layer downlink control channel PDCCH.

[0198] In this embodiment, the dynamic scheduling command for cross-node scheduling sent by the source network node may be carried by a MAC layer control command (such as a MAC control element (CE)) or a physical layer scheduling command PDCCH.

[0199] In some embodiments, the dynamic scheduling command includes at least one of the following information:

[0200] (1) Identification of the target network node; for example, TRP identifier (ID), cell ID, available resource set number, beam direction, reference signal number corresponding to the resource, etc.

[0201] (2) Random access resource indication information;

[0202] In some embodiments, the random access resource indication information includes:

[0203] The indication information for initiating non-contention random access includes information on non-contention random access resources; it may include a dedicated physical random access channel (PRACH) indication, a preamble code indication, and one or more physical uplink shared channel (PUSCH) resources in a two-step random access (2-step RACH). The information on the non-contention random access resources enables the target network node to uniquely identify the terminal.

[0204] or

[0205] Instruction information for initiating contention random access. In this case, the network node does not allocate dedicated random access resources and can use a fixed sequence to notify the terminal to initiate random access.

[0206] (3) Transmission resources allocated by network nodes;

[0207] In some embodiments, the transmission resources allocated by the network node are determined based on configuration information of the source network node or the target network node; the configuration information includes at least physical layer resource configuration information and / or scheduling parameter configuration information. It should be noted that the configuration information includes, but is not limited to, the aforementioned information, and other parameters may also be allocated as needed. In some embodiments, the transmission resources allocated by the network node may include allocated physical layer resources and / or transmission mode.

[0208] Among them, the physical layer resource configuration information and / or scheduling parameter configuration information is the information content in the serving cell configuration information (ServingCellConfig information), such as: downlink frequency and bandwidth, uplink frequency and bandwidth, PDCCH configuration, physical downlink shared channel (Physical downlink shared channel, PDSCH) configuration, physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) configuration, bandwidth part (Bandwidth Part, BWP) configuration, reference signal configuration, etc.

[0209] In this embodiment, the transmission resource may be allocated by the source network node and notified to the terminal; or, the transmission resource may be allocated by the target network node and notified to the source network node, which then notifies the terminal.

[0210] (4) Transmission delay indication information;

[0211] In some embodiments, the transmission delay indication information is used to indicate the sending time of the data transmission indicated by the dynamic scheduling command; that is, the transmission delay indication information can be used to indicate the actual sending time of the transmission indicated by the dynamic scheduling command.

[0212] The transmission delay indication information includes at least one of the following:

[0213] 1) an offset value of the sending time of the data transmission indicated by the dynamic scheduling command relative to the sending time of the dynamic scheduling command;

[0214] 2) The activation time and transmission delay value of the target network node; for example: TRP / cell activation time + transmission delay indication value. The TRP / cell activation time can be pre-negotiated by the network side and the terminal or specified by the protocol. If the TRP / cell is activated, the activation time is not added.

[0215] 3) The absolute time at which the data transmission indicated by the dynamic scheduling command takes effect.

[0216] In this embodiment, the transmission delay indication information may be used to indicate the actual sending time of the transmission indicated by the dynamic scheduling command.

[0217] (5) Downlink timing offset;

[0218] When the source network node and the target network node are not synchronized in downlink, the dynamic scheduling command may be used to instruct the terminal to initiate the downlink time offset of the transmission relative to the current downlink timing.

[0219] (6) Uplink Timing Advance: This is used to indicate the timing advance for uplink transmission at the target network node and can be indicated by a Timing Advance Command (TAC).

[0220] (7) After the terminal receives the dynamic scheduling command, the activation status information of the source network node has at least three options: activation status, deactivation status, and silent status. The source network node can indicate through the dynamic scheduling command that the TRP / cell is subsequently in activation status, deactivation status, or silent (dormant) status.

[0221] (8) The activated bandwidth part BWP of the target network node.

[0222] In some embodiments, when the dynamic scheduling command does not include an activated BWP of the target network node, the method further comprises:

[0223] Determining that a target BWP is an activated BWP of the target network node, the target BWP comprising one of the following:

[0224] The initial BWP of the target network node;

[0225] Preset BWP;

[0226] Preconfigured first BWP.

[0227] In this embodiment, the dynamic scheduling command may indicate the actual BWP in which the indicated resource is located. In some embodiments, if the active BWP is not indicated in the dynamic scheduling command, the terminal may perform transmission at the initial BWP or the default BWP of the target network node or the first active BWP configured on the network side.

[0228] As an optional embodiment, before receiving the dynamic scheduling command sent by the source network node, the method further includes:

[0229] Acquire random access resource configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes;

[0230] The performing data transmission with the target network node according to the transmission resource includes:

[0231] initiating random access at the target network node according to the first random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node;

[0232] The first random access resource is determined according to the random access resource configuration of the target network node.

[0233] In this embodiment, the network side (which may be the source network node or other nodes, such as a central control node) pre-configures the random access resource configuration of one or more candidate network nodes (such as TRP or cell or available resource set) for the terminal. The random access resource configuration may include PRACH resources, preamble codes, PUSCH resource configuration in 2-step RACH and other information.

[0234] The source network node uses a dynamic scheduling command to instruct the terminal to initiate random access on the target network node. The dynamic scheduling command in this manner is physical layer signaling (PDCCH order). After receiving the dynamic scheduling command, the terminal determines the transmission resources indicated by the command and performs data transmission with the target network node based on the transmission resources. In this embodiment, the random access resources indicated by the dynamic scheduling command are based on the random access resource configuration of the target network node.

[0235] It should be noted that the network-side node can refer to a TRP, a cell, or an available resource set. An available resource set refers to the entire set that can perform access, scheduling, and transmission for a terminal, and can include one or more TRPs or cells.

[0236] The following example illustrates the process in which the source network node sends a dynamic scheduling command to the terminal, and the terminal performs data transmission based on the transmission resources indicated by the dynamic scheduling command.

[0237] As shown in Figure 2, the source network node triggers the terminal to initiate random access and perform data transmission at the target network node, including:

[0238] Step 21: The network configures random access resource configuration for the candidate network node for the terminal. For the candidate network node, one or more of the following can be configured: PRACH resources, preamble code, and PUSCH resource configuration in 2-step RACH. This configuration is sent to the terminal by the source network node or received and stored by the terminal from another node.

[0239] Step 22: The source network node and the target network node exchange information about the terminal accessing the target network node, and determine a random access resource used by the terminal to access the target network node.

[0240] Step 23: The source network node sends a dynamic scheduling command to the terminal to trigger the terminal to initiate random access. The dynamic scheduling command is specifically a PDCCH order, which carries one or more of the following:

[0241] 1) Identification of the target network node: for example, TRP ID, cell ID, available resource set number, beam direction, and corresponding reference signal number.

[0242] 2) Random access resource indication information (mandatory): This may include one or more of a dedicated PRACH indication, a preamble code indication, and a PUSCH resource in a 2-step RACH; or, alternatively, a fixed sequence is used to notify the terminal to initiate contention random access. The random access resource is determined according to the random access resource configuration of the target network node configured in step 21.

[0243] 3) Transmission delay indication information (optional): used to instruct the terminal to delay initiating random access, or used to indicate the time when the terminal can initiate random access.

[0244] 4) Downlink timing offset of the target network node (optional). In some embodiments, if this parameter is not included in the dynamic scheduling command, the terminal initiates random access based on the downlink timing value of the source network node, or the terminal pre-detects the downlink timing value of the candidate network node and, when initiating random access, initiates random access based on the pre-detected downlink timing value.

[0245] Step 24: The terminal initiates random access to the target network node according to the random access resource indication information obtained in step 23.

[0246] Among them, if step 23 indicates a 4-step non-contention random access, the terminal initiates random access using a dedicated PRACH and / or Preamble, that is, sending a dedicated Preamble on a dedicated PRACH resource, or sending any Preamble code available to the target network node on a dedicated PRACH resource, or sending a dedicated Preamble on a PRACH resource available to the target network node.

[0247] If step 23 indicates a 2-step non-contention random access, the terminal initiates random access using a dedicated PRACH and / or Preamble, and performs uplink transmission on a PUSCH resource corresponding to the dedicated PRACH and / or Preamble.

[0248] If step 23 indicates contention random access, the terminal initiates random access using the PRACH and Preamble available to the target network node. If the target network node is configured with 2-step RACH, the terminal may send uplink data transmission on the PUSCH corresponding to the selected PRACH and Preamble.

[0249] Step 25: The target network node sends a random access response message to the terminal. The random access response message carries indication information of the uplink timing advance of the terminal.

[0250] Step 26: After completing random access, the terminal performs data transmission with the target network node.

[0251] It should be noted that step 22 and step 23 can be performed simultaneously.

[0252] In this embodiment, the network side pre-configures random access resource configurations of multiple candidate network nodes for the terminal, and the source network node instructs the terminal to initiate random access on the target network node through a dynamic scheduling command, thereby realizing dynamic scheduling of transmission resources of the target network node by the source network node.

[0253] As another optional embodiment, the performing data transmission with the target network node according to the transmission resource includes:

[0254] initiating random access with a target network node at the source network node according to the second random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node;

[0255] The second random access resource is determined according to the random access resource configuration of the source network node.

[0256] In this embodiment, the source network node triggers the terminal to initiate random access using a dynamic scheduling command. The parameters of the random access resource indicated in the dynamic scheduling command correspond to the configuration of the source network node. This means that, from the perspective of the terminal, the terminal initiates random access at the source network node. The target network node receives the random access initiated by the terminal, accesses the terminal, and conducts subsequent transmissions with it. The dynamic scheduling command in this manner is a physical layer signaling PDCCH order.

[0257] In some embodiments, before the source network node sends a dynamic scheduling command to the terminal, the source network node sends relevant information about transmission resources to the target network node, notifying the target network node of resource allocation parameters, such as physical layer resources, transmission mode, transmission time, etc.

[0258] The following example illustrates the process in which the source network node sends a dynamic scheduling command to the terminal, and the terminal performs data transmission based on the transmission resources indicated by the dynamic scheduling command.

[0259] As shown in Figure 3, the source network node triggers the terminal to initiate random access and perform data transmission at the target network node, including:

[0260] Step 31: The source network node and the target network node exchange information about the terminal accessing the target network node, and determine a random access resource used by the terminal to access the target network node.

[0261] Step 32: The source network node sends a dynamic scheduling command to the terminal to trigger the terminal to initiate random access. The dynamic scheduling command is specifically a PDCCH order, which carries one or more of the following:

[0262] 1) Identification of the target network node (optional): such as TRP ID, cell ID, available resource set number, beam direction, and corresponding reference signal number.

[0263] 2) Random access resource indication information (mandatory): This may include one or more of a dedicated PRACH indication, a preamble code indication, and a PUSCH resource in a 2-step RACH. Alternatively, the source network node may use a fixed sequence to notify the terminal to initiate contention-based random access. The random access resource is determined according to the random access resource configuration of the source network node.

[0264] 3) Transmission delay indication information (optional): used to instruct the terminal to delay initiating random access, or used to indicate the time when the terminal can initiate random access.

[0265] 4) Downlink timing offset of the target network node (optional). In some embodiments, if this parameter is not included in the dynamic scheduling command, the terminal initiates random access based on the downlink timing value of the source network node, or the terminal pre-detects the downlink timing value of the candidate network node and, when initiating random access, initiates random access based on the pre-detected downlink timing value.

[0266] Step 33: The terminal initiates random access according to the random access resource indication information obtained in step 32.

[0267] If step 32 indicates 4-step non-contention random access, the terminal initiates random access using a dedicated PRACH and / or Preamble.

[0268] If step 32 indicates a 2-step non-contention random access, the terminal initiates random access using a dedicated PRACH and / or Preamble and sends uplink transmissions on the PUSCH resources corresponding to the dedicated PRACH and / or Preamble;

[0269] If step 32 indicates contention random access, the terminal initiates random access using the PRACH and Preamble available to the source network node. If the target network node is configured with 2-step RACH, the terminal may send uplink data transmission on the PUSCH corresponding to the selected PRACH and Preamble.

[0270] Step 34: The target network node receives the random access request and / or corresponding PUSCH transmission sent by the terminal, and sends a random access response to the terminal. The random access response carries the indication information of the target network node's uplink timing advance for the terminal.

[0271] Step 35: The target network node sends the configuration parameters of the target network node to the terminal. After completing random access, the terminal can perform subsequent transmission with the target network node based on the configuration parameters of the target network node.

[0272] It should be noted that step 31 and step 32 can be performed simultaneously.

[0273] In this embodiment, the network side does not pre-configure random access resources for the terminal. The source network node directly instructs the terminal to initiate random access through a dynamic scheduling command. The indicated resources correspond to the configuration of the source network node, and the target network node receives the terminal's random access request, thereby implementing dynamic scheduling of the source network node's transmission resources for the target network node.

[0274] As another optional embodiment, before receiving the dynamic scheduling command sent by the source network node, the method further includes:

[0275] Acquire configuration information of one or more candidate network nodes, where the target network node is one or more network nodes among the candidate network nodes; the configuration information of the candidate network nodes includes at least: physical layer resource configuration information of the candidate network nodes and / or scheduling parameter configuration information of the candidate network nodes;

[0276] The performing data transmission with the target network node according to the transmission resource includes:

[0277] performing data transmission with the target network node according to the first allocated resources indicated by the dynamic scheduling command;

[0278] The first allocated resources are determined based on configuration information of the target network node.

[0279] In this embodiment, the network side pre-configures one or more candidate network nodes (TRP or cell or available resource set) for the terminal, as well as the physical layer resource configuration and scheduling parameter configuration of these candidate network nodes. The source network node sends a dynamic scheduling command to the terminal, which carries the TRP ID or cell ID or available resource set number to indicate the activated and / or scheduled TRP or cell or available resource set, and allocates physical layer resources for transmission based on the resource configuration of the scheduled TRP or cell or available resource set. The available resource set number is used to indicate the physical layer resources and scheduling parameters of one or more TRPs / cells.

[0280] In some embodiments, if the TRP or cell indicated by the dynamic scheduling command has not been activated before, the dynamic scheduling command is used to activate and schedule the TRP / cell / available resource set, and schedule transmissions on the TRP / cell / available resource set. The dynamic scheduling command in this manner is carried by the physical layer signaling PDCCH or MAC CE.

[0281] The following example illustrates the process in which the source network node sends a dynamic scheduling command to the terminal, and the terminal performs data transmission based on the transmission resources indicated by the dynamic scheduling command.

[0282] As shown in Figure 4, the network side preconfigures configuration parameters of the candidate network nodes, and the source network node uses dynamic scheduling commands to schedule transmission resources, including:

[0283] Step 41: The network side configures the configuration parameters of the candidate network node for the terminal, which may include the physical layer resource configuration and scheduling parameter configuration of the target network node. This configuration may be sent to the terminal by the source network node or received and stored by the terminal from other network nodes.

[0284] Step 42: The source network node and the target network node exchange relevant parameter information of data transmission between the terminal and the target network node, and determine the scheduling resources and data processing parameters used when the terminal and the target network node transmit data.

[0285] Step 43: The source network node sends a dynamic scheduling command to the terminal, which is used to allocate resources of the target network node and instruct the terminal to perform data transmission at the target network node. The scheduling command carries one or more of the following:

[0286] 1) Identification of the target network node (mandatory): such as TRP ID, cell ID, available resource set number, beam direction, and corresponding reference signal number.

[0287] 2) Allocated transmission resources (mandatory): may include physical layer resource allocation and transmission mode. The allocated transmission resources are determined based on the configuration information of the target network node configured in step 41 .

[0288] 3) Transmission delay indication information (optional): The transmission delay indication information is used to indicate the actual sending time of the transmission indicated by the dynamic scheduling command.

[0289] 4) Downlink Timing Offset (Optional): In some embodiments, if this parameter is not included in the dynamic scheduling command, the terminal transmits data with the target network node based on the downlink timing value of the source network node, or the terminal pre-detects the downlink timing value of the candidate network node and transmits data with the target network node based on the pre-detected downlink timing value.

[0290] 5) Uplink timing advance TAC (optional);

[0291] 6) Information indicating that the TRP / cell is subsequently in an activated, deactivated, or dormant state;

[0292] 7) The activated BWP of the target network node (TRP / cell), that is, the actual BWP where the resources indicated by the dynamic scheduling command are located.

[0293] In some embodiments, if the active BWP is not indicated in the dynamic scheduling command, the terminal performs transmission at the initial BWP or default BWP of the target network node or the first active BWP configured on the network side.

[0294] Step 44: The terminal initiates data transmission to the target network node according to the dynamic scheduling command in step 43. If downlink transmission is scheduled in step 43, the terminal receives the downlink transmission from the target network node according to the downlink resources allocated in step 43. The downlink transmission may include the TAC of the terminal for uplink transmission on the target network node. If uplink transmission is scheduled in step 43, the terminal sends an uplink transmission to the target network node based on the dynamic scheduling command.

[0295] It should be noted that step 42 and step 43 can be performed simultaneously.

[0296] In this embodiment, the network side pre-configures the terminal with configuration information of multiple candidate network nodes, such as physical layer resources and scheduling parameters. The source network node indicates the target network node and its physical layer resources to the terminal through a dynamic scheduling command. The terminal then performs data transmission with the target network node based on the physical layer resources, thereby implementing dynamic scheduling of the transmission resources of the target network node by the source network node.

[0297] As another optional embodiment, the performing data transmission with the target network node according to the transmission resource includes:

[0298] performing data transmission with the target network node according to the second allocated resources indicated by the dynamic scheduling command;

[0299] The second allocated resources are determined based on configuration information of the source network node, and the configuration information of the source network node at least includes: physical layer resource configuration information of the source network node and / or scheduling parameter configuration information of the source network node.

[0300] In this embodiment, the network side does not pre-notify the terminal of the physical layer resource configuration and scheduling parameter configuration of the candidate network node. The source network node uses the resource allocation parameters of the cell to allocate cross-node scheduling resources and indicates the TRP ID, cell ID, beam direction, or reference signal number corresponding to the resource (the reference signal is associated with the beam direction, TRP, or cell). In this way, the terminal can obtain the complete configuration parameters of the target network node through the data transmitted by the current scheduling resource or the data transmitted subsequently. The dynamic scheduling command in this way is carried by the physical layer signaling PDCCH or MAC CE.

[0301] In some embodiments, before the source network node sends a dynamic scheduling command to the terminal, the source network node sends relevant information about transmission resources to the target network node, notifying the target network node of resource allocation parameters, such as physical layer resources, transmission mode, transmission time, etc.

[0302] The following example illustrates the process in which the source network node sends a dynamic scheduling command to the terminal, and the terminal performs data transmission based on the transmission resources indicated by the dynamic scheduling command.

[0303] As shown in Figure 5, the network side does not pre-configure the configuration parameters of the available candidate network nodes. The source network node uses dynamic scheduling commands to schedule transmission resources, including:

[0304] Step 51: The source network node and the target network node exchange relevant parameter information of data transmission between the terminal and the target network node, and determine the scheduling resources and data processing parameters used when the terminal and the target network node transmit data.

[0305] Step 52: The source network node sends a dynamic scheduling command to the terminal, instructing the terminal to perform data transmission at the target network node. The scheduling command carries one or more of the following:

[0306] 1) Identification of the target network node (optional): such as TRP ID, cell ID, available resource set number, beam direction, and corresponding reference signal number.

[0307] 2) Allocated transmission resources (mandatory): may include physical layer resource allocation and transmission mode. The allocated transmission resources are determined based on the configuration information of the source network node.

[0308] 3) Transmission delay indication information (optional): The transmission delay indication information is used to indicate the actual sending time of the transmission indicated by the dynamic scheduling command.

[0309] 4) Downlink Timing Offset (Optional): In some embodiments, if this parameter is not included in the dynamic scheduling command, the terminal may transmit based on the downlink timing value of the source network node, or the terminal may pre-detect the downlink timing value of the candidate network node and transmit based on the pre-detected downlink timing value.

[0310] 5) Uplink timing advance TAC (optional);

[0311] 6) Indication information that the source network node (source TRP / cell) is subsequently in an activated, deactivated or dormant state.

[0312] 7) The activated BWP of the target network node (target TRP / cell), i.e., the actual BWP where the resources indicated by the dynamic scheduling command are located. In some embodiments, if the activated BWP is not indicated in the dynamic scheduling command, the terminal performs data transmission at the initial BWP or default BWP of the target network node or the first activated BWP configured by the network side.

[0313] Step 53: The terminal initiates data transmission to the target network node based on the dynamic scheduling command in step 52. If the downlink transmission is scheduled in step 52, the target network node may include the TAC for the terminal to perform uplink transmission on the target network node and / or the complete configuration information of the target network node in the downlink transmission. If the uplink transmission is scheduled in step 52, the terminal sends an uplink transmission to the target network node based on the dynamic scheduling command, and the target network node configures the complete configuration parameters of the target network node for the terminal in subsequent transmissions.

[0314] It should be noted that step 51 and step 52 can be performed simultaneously.

[0315] In this embodiment, the network side does not pre-configure configuration information for candidate network nodes. Instead, it uses the resource allocation parameters of the source network node's own cell to allocate cross-node scheduling resources and indicates the identifier of the target network node corresponding to the resource. The terminal then transmits data with the target network node based on the indicated transmission resources, enabling dynamic scheduling of transmission resources from the source network node to the target network node.

[0316] In an embodiment of the present disclosure, a source network node sends a dynamic scheduling command to a terminal, activating and / or scheduling transmission resources for data transmission between the terminal and a target network node; the terminal then performs data transmission with the target network node based on the transmission resources. This method can dynamically schedule the transmission resources of a target network node from the source network node in any network node deployment, enabling the terminal to dynamically initiate data transmission with any target network node, while also activating the target network node on demand, thereby achieving network energy conservation.

[0317] As shown in FIG6 , an embodiment of the present disclosure further provides a cross-node scheduling method, which is applied to a network device and includes:

[0318] Step 601: The source network node sends a dynamic scheduling command to the terminal; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, and the transmission resources are transmission resources for data transmission between the terminal and the target network node.

[0319] In this embodiment, the source network node is the terminal's current transmitting node or cell, and the target network node is the terminal's target transmitting node or cell for inter-node transmission. The source network node sends a dynamic scheduling command to the terminal to activate and / or schedule inter-node transmission resources. The dynamic scheduling command can be used to activate transmission resources for inter-node transmission or to schedule transmission resources for inter-node transmission. The scheduling of transmission resources can refer to resource allocation.

[0320] In some embodiments, when the terminal transmits data with the target network node based on the transmission resources, it can also transmit data with the source network node, including two transmission situations: (1) the source network node and the target network node use the same transmission resources to transmit with the terminal, that is, joint transmission; (2) the source network node and the target network node use different transmission resources to transmit with the terminal.

[0321] In an embodiment of the present disclosure, a source network node sends a dynamic scheduling command to a terminal, activating and / or scheduling transmission resources for data transmission between the terminal and a target network node; thereby enabling the terminal to perform data transmission with the target network node based on the transmission resources. This method can dynamically schedule the transmission resources of a target network node from the source network node in any network node deployment, enabling the terminal to dynamically initiate data transmission with any target network node, while also activating the target network node on demand, thereby achieving network energy conservation.

[0322] In some embodiments, the dynamic scheduling command is carried via a medium access control (MAC) layer control command, and / or the dynamic scheduling command is carried via a PDCCH.

[0323] In this embodiment, the dynamic scheduling command for cross-node scheduling sent by the source network node may be carried by a MAC layer control command (such as MAC CE) or a physical layer scheduling command PDCCH.

[0324] In some embodiments, the dynamic scheduling command includes at least one of the following information:

[0325] (1) Identification of the target network node; for example, TRP ID, cell ID, available resource set number, beam direction, reference signal number corresponding to the resource, etc.

[0326] (2) Random access resource indication information;

[0327] In some embodiments, the random access resource indication information includes:

[0328] Indication information for initiating non-contention random access, including information on non-contention random access resources; may include one or more of a dedicated PRACH indication, a preamble code indication, and a PUSCH resource in a two-step random access (2-step RACH). The information on the non-contention random access resources may enable the target network node to uniquely identify the terminal.

[0329] or

[0330] Instruction information for initiating contention random access. In this case, the network node does not allocate dedicated random access resources and can use a fixed sequence to notify the terminal to initiate random access.

[0331] (3) Transmission resources allocated by network nodes;

[0332] In some embodiments, the transmission resources allocated by the network node are determined based on configuration information of the source network node or based on configuration information of the target network node; the configuration information includes at least physical layer resource configuration information and / or scheduling parameter configuration information. In some embodiments, the transmission resources allocated by the network node may include allocated physical layer resources and a transmission mode.

[0333] In this embodiment, the transmission resource may be allocated by the source network node and notified to the terminal; or, the transmission resource may be allocated by the target network node and notified to the source network node, which then notifies the terminal.

[0334] (4) Transmission delay indication information;

[0335] In some embodiments, the transmission delay indication information is used to indicate the sending time of the data transmission indicated by the dynamic scheduling command; that is, the transmission delay indication information can be used to indicate the actual sending time of the transmission indicated by the dynamic scheduling command.

[0336] The transmission delay indication information includes at least one of the following:

[0337] 1) an offset value of the sending time of the data transmission indicated by the dynamic scheduling command relative to the sending time of the dynamic scheduling command;

[0338] 2) The activation time and transmission delay value of the target network node; for example: TRP / cell activation time + transmission delay indication value. The TRP / cell activation time can be pre-negotiated by the network side and the terminal or specified by the protocol. If the TRP / cell is activated, the activation time is not added.

[0339] 3) The absolute time at which the data transmission indicated by the dynamic scheduling command takes effect.

[0340] In this embodiment, the transmission delay indication information may be used to indicate the actual sending time of the transmission indicated by the dynamic scheduling command.

[0341] (5) Downlink timing offset;

[0342] When the source network node and the target network node are not synchronized in downlink, the dynamic scheduling command may be used to instruct the terminal to initiate the downlink time offset of the transmission relative to the current downlink timing.

[0343] (6) Uplink Timing Advance: This is used to indicate the timing advance for uplink transmission at the target network node and can be indicated by a Timing Advance Command (TAC).

[0344] (7) After the terminal receives the dynamic scheduling command, the activation state information of the source network node; the activation state information has at least three options: activation state, deactivation state, and dormant state. The source network node can indicate that the TRP / cell is in the activation state, deactivation state, or dormant state through the dynamic scheduling command.

[0345] (8) The activated bandwidth part BWP of the target network node.

[0346] In some embodiments, when the dynamic scheduling command does not include an activated BWP of the target network node, the method further comprises:

[0347] Determining that a target BWP is an activated BWP of the target network node, the target BWP comprising one of the following:

[0348] The initial BWP of the target network node;

[0349] Preset BWP;

[0350] Preconfigured first BWP.

[0351] In this embodiment, the dynamic scheduling command may indicate the actual BWP that the indicated resource is located in. In some embodiments, if the dynamic scheduling command does not indicate the activated BWP, the terminal may perform transmission at the initial BWP or the default BWP of the target network node or the first activated BWP configured on the network side.

[0352] As an optional embodiment, when the dynamic scheduling command indicates a random access resource, the random access resource is determined according to the random access resource configuration of the source network node, or determined according to the random access resource configuration of the target network node.

[0353] In this embodiment, the network side (which may be the source network node or other nodes, such as a central control node) pre-configures the random access resource configuration of one or more candidate network nodes (such as a TRP or a cell or an available resource set) for the terminal. The source network node uses a dynamic scheduling command to instruct the terminal to initiate random access on the target network node. The dynamic scheduling command in this manner is a physical layer signaling PDCCH order. After receiving the dynamic scheduling command, the terminal determines the transmission resource indicated by the command and performs data transmission with the target network node based on the transmission resource. The random access resource indicated by the dynamic scheduling command in this embodiment is based on the random access resource configuration of the target network node.

[0354] Alternatively, the network side has not preconfigured random access resources for the candidate network node. The source network node uses a dynamic scheduling command to trigger the terminal to initiate random access. The parameters of the random access resources indicated in the dynamic scheduling command are determined based on the configuration of the source network node. For the terminal, the terminal initiates random access at the source network node, and the target network node receives the random access initiated by the terminal. The target network node accesses the terminal and conducts subsequent transmissions with it. The dynamic scheduling command in this method is the physical layer signaling PDCCH order.

[0355] As an optional embodiment, the method further includes:

[0356] Random access resource configuration information of one or more candidate network nodes is sent to the terminal; the target network node is one or more network nodes among the candidate network nodes.

[0357] In this embodiment, the source network node can pre-configure the random access resource configuration of one or more candidate network nodes (such as TRP or cell or available resource set) for the terminal, and the source network node instructs the terminal to initiate random access at the target network node through a dynamic scheduling command.

[0358] As an optional embodiment, when the dynamic scheduling command indicates the transmission resources allocated by the network node, the transmission resources allocated by the network node are determined based on the configuration information of the target network node, or based on the configuration information of the source network node; the configuration information includes at least: physical layer resource configuration information and / or scheduling parameter configuration information.

[0359] In this embodiment, the network side can pre-configure one or more candidate network nodes and the physical layer resource configuration and scheduling parameter configuration of these candidate network nodes for the terminal. The source network node sends a dynamic scheduling command to the terminal to indicate the activated and / or scheduled TRP or cell or available resource set, and allocates physical layer resources for transmission based on the configuration information of the scheduled TRP or cell or available resource set.

[0360] Alternatively, the network side may not pre-configure the physical layer resource configuration and scheduling parameter configuration of the candidate network node for the terminal. The source network node uses the resource allocation parameters of its own cell to allocate cross-node scheduling resources and indicates the identifier of the target network node corresponding to the resource through a dynamic scheduling command. In this method, the dynamic scheduling command is carried by the physical layer signaling PDCCH or MAC CE.

[0361] In some embodiments, the method further comprises:

[0362] Sending configuration information of one or more candidate network nodes to the terminal, where the target network node is one or more network nodes among the candidate network nodes;

[0363] The configuration information of the candidate network node includes at least: physical layer resource configuration information of the candidate network node and / or scheduling parameter configuration information of the candidate network node.

[0364] In this embodiment, the source network node may pre-configure one or more candidate network nodes and the physical layer resource configurations and scheduling parameter configurations of these candidate network nodes for the terminal. The source network node indicates the identifier of the target network node through a dynamic scheduling command and allocates physical layer resources for transmission based on the resource configuration of the target network node.

[0365] In some embodiments, the method further comprises:

[0366] First information is sent to the target network node, where the first information includes relevant information about the transmission resource.

[0367] In this embodiment, in the case where the network side has not pre-configured the random access configuration or physical layer resource configuration of the candidate network node for the terminal, before the source network node sends a dynamic scheduling command to the terminal, the source network node can send relevant information about the transmission resources to the target network node to notify the target network node of resource allocation parameters, such as physical layer resources, transmission mode, transmission time, etc.

[0368] In an embodiment of the present disclosure, a source network node sends a dynamic scheduling command to a terminal, activating and / or scheduling transmission resources for data transmission between the terminal and a target network node; thereby enabling the terminal to perform data transmission with the target network node based on the transmission resources. This method can dynamically schedule the transmission resources of a target network node from the source network node in any network node deployment, enabling the terminal to dynamically initiate data transmission with any target network node, while also activating the target network node on demand, thereby achieving network energy conservation.

[0369] The above embodiments introduce the cross-node scheduling method disclosed herein. The following embodiments will further illustrate the corresponding apparatus with reference to the accompanying drawings.

[0370] Specifically, as shown in FIG7 , an embodiment of the present disclosure provides a cross-node scheduling apparatus 700 , which is applied to a terminal and includes:

[0371] A first receiving unit 710 is configured to receive a dynamic scheduling command sent by a source network node; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, where the transmission resources are transmission resources for data transmission between the terminal and the target network node;

[0372] The transmission unit 720 is configured to perform data transmission with the target network node according to the transmission resource.

[0373] In some embodiments, the dynamic scheduling command is carried via a medium access control MAC layer control command, and / or the dynamic scheduling command is carried via a physical layer downlink control channel PDCCH.

[0374] In some embodiments, the dynamic scheduling command includes at least one of the following information:

[0375] The identification of the target network node;

[0376] Random access resource indication information;

[0377] Transmission resources allocated by network nodes;

[0378] Transmission delay indication information;

[0379] Downlink timing offset;

[0380] Uplink timing advance;

[0381] After the terminal receives the dynamic scheduling command, the activation status information of the source network node;

[0382] The active bandwidth portion BWP of the target network node.

[0383] In some embodiments, the random access resource indication information includes:

[0384] Instruction information for initiating non-contention random access, including information on resources for non-contention random access;

[0385] or

[0386] Instruction information for initiating contention random access.

[0387] In some embodiments, the transmission resource allocated by the network node is determined based on configuration information of the source network node, or based on configuration information of the target network node;

[0388] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0389] In some embodiments, the transmission delay indication information is used to indicate a sending time of the data transmission indicated by the dynamic scheduling command;

[0390] The transmission delay indication information includes at least one of the following:

[0391] an offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command;

[0392] The activation time and transmission delay value of the target network node;

[0393] The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

[0394] In some embodiments, the apparatus further comprises:

[0395] A first determining unit is configured to determine that a target BWP is an activated BWP of the target network node, where the target BWP includes one of the following:

[0396] The initial BWP of the target network node;

[0397] Preset BWP;

[0398] Preconfigured first BWP.

[0399] In some embodiments, the apparatus further comprises:

[0400] A first acquiring unit is configured to acquire random access resource configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes;

[0401] The transmission unit is specifically configured to: initiate random access at the target network node according to the first random access resource indicated by the dynamic scheduling command, and perform data transmission with the target network node;

[0402] The first random access resource is determined according to the random access resource configuration of the target network node.

[0403] In some embodiments, the transmission unit is specifically configured to:

[0404] initiating random access with a target network node at the source network node according to the second random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node;

[0405] The second random access resource is determined according to the random access resource configuration of the source network node.

[0406] In some embodiments, the apparatus further comprises:

[0407] A second acquiring unit is configured to acquire configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes; the configuration information of the candidate network nodes includes at least: physical layer resource configuration information of the candidate network nodes and / or scheduling parameter configuration information of the candidate network nodes;

[0408] The transmission unit is specifically configured to: perform data transmission with the target network node according to the first allocated resources indicated by the dynamic scheduling command;

[0409] The first allocated resources are determined based on configuration information of the target network node.

[0410] In some embodiments, the transmission unit is specifically configured to:

[0411] performing data transmission with the target network node according to the second allocated resources indicated by the dynamic scheduling command;

[0412] The second allocated resources are determined based on configuration information of the source network node, and the configuration information of the source network node at least includes: physical layer resource configuration information of the source network node and / or scheduling parameter configuration information of the source network node.

[0413] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0414] Specifically, as shown in FIG8 , an embodiment of the present disclosure provides a cross-node scheduling apparatus 800 , which is applied to a network device and includes:

[0415] The first sending unit 810 is configured to send a dynamic scheduling command to the terminal; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, where the transmission resources are transmission resources used for data transmission between the terminal and the target network node.

[0416] In some embodiments, the dynamic scheduling command is carried via a medium access control (MAC) layer control command, and / or the dynamic scheduling command is carried via a PDCCH.

[0417] In some embodiments, the dynamic scheduling command includes at least one of the following information:

[0418] The identification of the target network node;

[0419] Random access resource indication information;

[0420] Transmission resources allocated by network nodes;

[0421] Transmission delay indication information;

[0422] Downlink timing offset;

[0423] Uplink timing advance;

[0424] After the terminal receives the dynamic scheduling command, the activation status information of the source network node;

[0425] Activate BWP of target network node.

[0426] In some embodiments, the random access resource indication information includes:

[0427] Instruction information for initiating non-contention random access, including information on resources for non-contention random access;

[0428] or

[0429] Instruction information for initiating contention random access.

[0430] In some embodiments, the transmission resource allocated by the network node is determined based on configuration information of the source network node, or based on configuration information of the target network node;

[0431] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0432] In some embodiments, the transmission delay indication information is used to indicate a sending time of the data transmission indicated by the dynamic scheduling command;

[0433] The transmission delay indication information includes at least one of the following:

[0434] an offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command;

[0435] The activation time and transmission delay value of the target network node;

[0436] The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

[0437] In some embodiments, when the dynamic scheduling command indicates a random access resource, the random access resource is determined according to the random access resource configuration of the source network node, or according to the random access resource configuration of the target network node.

[0438] In some embodiments, the apparatus further comprises:

[0439] The second sending unit is configured to send random access resource configuration information of one or more candidate network nodes to the terminal; the target network node is one or more network nodes among the candidate network nodes.

[0440] In some embodiments, when the dynamic scheduling command indicates the transmission resources allocated by the network node, the transmission resources allocated by the network node are determined based on the configuration information of the target network node or based on the configuration information of the source network node;

[0441] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0442] In some embodiments, the apparatus further comprises:

[0443] a third sending unit, configured to send configuration information of one or more candidate network nodes to the terminal, where the target network node is one or more network nodes among the candidate network nodes;

[0444] The configuration information of the candidate network node includes at least: physical layer resource configuration information of the candidate network node and / or scheduling parameter configuration information of the candidate network node.

[0445] In some embodiments, the apparatus further comprises:

[0446] The fourth sending unit is configured to send first information to the target network node, where the first information includes relevant information about the transmission resource.

[0447] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment applied to the network device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0448] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0449] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0450] As shown in FIG9 , an embodiment of the present disclosure further provides a terminal, including: a memory 920, a transceiver 900, and a processor 910; wherein the memory 920 is used to store a computer program; the transceiver 900 is used to receive and send data under the control of the processor 910; and the processor 910 is used to read the computer program in the memory and perform the following operations:

[0451] Receiving a dynamic scheduling command sent by a source network node; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, wherein the transmission resources are transmission resources for data transmission between the terminal and the target network node;

[0452] Perform data transmission with the target network node according to the transmission resource.

[0453] In some embodiments, the dynamic scheduling command is carried via a medium access control MAC layer control command, and / or the dynamic scheduling command is carried via a physical layer downlink control channel PDCCH.

[0454] In some embodiments, the dynamic scheduling command includes at least one of the following information:

[0455] The identification of the target network node;

[0456] Random access resource indication information;

[0457] Transmission resources allocated by network nodes;

[0458] Transmission delay indication information;

[0459] Downlink timing offset;

[0460] Uplink timing advance;

[0461] After the terminal receives the dynamic scheduling command, the activation status information of the source network node;

[0462] The active bandwidth portion BWP of the target network node.

[0463] In some embodiments, the random access resource indication information includes:

[0464] Instruction information for initiating non-contention random access, including information on resources for non-contention random access;

[0465] or

[0466] Instruction information for initiating contention random access.

[0467] In some embodiments, the transmission resource allocated by the network node is determined based on configuration information of the source network node, or based on configuration information of the target network node;

[0468] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0469] In some embodiments, the transmission delay indication information is used to indicate a sending time of the data transmission indicated by the dynamic scheduling command;

[0470] The transmission delay indication information includes at least one of the following:

[0471] an offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command;

[0472] The activation time and transmission delay value of the target network node;

[0473] The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

[0474] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0475] Determining that a target BWP is an activated BWP of the target network node, the target BWP comprising one of the following:

[0476] The initial BWP of the target network node;

[0477] Preset BWP;

[0478] Preconfigured first BWP.

[0479] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0480] Acquire random access resource configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes;

[0481] The performing data transmission with the target network node according to the transmission resource includes:

[0482] initiating random access at the target network node according to the first random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node;

[0483] The first random access resource is determined according to the random access resource configuration of the target network node.

[0484] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0485] initiating random access with a target network node at the source network node according to the second random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node;

[0486] The second random access resource is determined according to the random access resource configuration of the source network node.

[0487] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0488] Acquire configuration information of one or more candidate network nodes, where the target network node is one or more network nodes among the candidate network nodes; the configuration information of the candidate network nodes includes at least: physical layer resource configuration information of the candidate network nodes and / or scheduling parameter configuration information of the candidate network nodes;

[0489] performing data transmission with the target network node according to the first allocated resources indicated by the dynamic scheduling command;

[0490] The first allocated resources are determined based on configuration information of the target network node.

[0491] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0492] performing data transmission with the target network node according to the second allocated resources indicated by the dynamic scheduling command;

[0493] The second allocated resources are determined based on configuration information of the source network node, and the configuration information of the source network node at least includes: physical layer resource configuration information of the source network node and / or scheduling parameter configuration information of the source network node.

[0494] In FIG9 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits connected together by one or more processors represented by processor 910 and memory represented by memory 920. The bus architecture may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 900 may be a plurality of components, including a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 930 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0495] The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 910 when performing operations.

[0496] In some embodiments, the processor 910 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0497] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0498] It should be noted here that the above-mentioned terminal provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0499] As shown in Figure 10, an embodiment of the present disclosure also provides a network device, including: a memory 1020, a transceiver 1000, and a processor 1010; wherein the memory 1020 is used to store computer programs; the transceiver 1000 is used to receive and send data under the control of the processor 1010; the processor 1010 is used to read the computer program in the memory and execute the steps of the cross-node scheduling method.

[0500] Specifically, the processor 1010 is configured to read the computer program in the memory and perform the following operations:

[0501] Sending a dynamic scheduling command to the terminal; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, where the transmission resources are transmission resources for data transmission between the terminal and the target network node.

[0502] In some embodiments, the dynamic scheduling command is carried via a medium access control (MAC) layer control command, and / or the dynamic scheduling command is carried via a PDCCH.

[0503] In some embodiments, the dynamic scheduling command includes at least one of the following information:

[0504] The identification of the target network node;

[0505] Random access resource indication information;

[0506] Transmission resources allocated by network nodes;

[0507] Transmission delay indication information;

[0508] Downlink timing offset;

[0509] Uplink timing advance;

[0510] After the terminal receives the dynamic scheduling command, the activation status information of the source network node;

[0511] Activate BWP of target network node.

[0512] In some embodiments, the random access resource indication information includes:

[0513] Instruction information for initiating non-contention random access, including information on resources for non-contention random access;

[0514] or

[0515] Instruction information for initiating contention random access.

[0516] In some embodiments, the transmission resource allocated by the network node is determined based on configuration information of the source network node, or based on configuration information of the target network node;

[0517] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0518] In some embodiments, the transmission delay indication information is used to indicate a sending time of the data transmission indicated by the dynamic scheduling command;

[0519] The transmission delay indication information includes at least one of the following:

[0520] an offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command;

[0521] The activation time and transmission delay value of the target network node;

[0522] The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

[0523] In some embodiments, when the dynamic scheduling command indicates a random access resource, the random access resource is determined according to the random access resource configuration of the source network node, or according to the random access resource configuration of the target network node.

[0524] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0525] Random access resource configuration information of one or more candidate network nodes is sent to the terminal; the target network node is one or more network nodes among the candidate network nodes.

[0526] In some embodiments, when the dynamic scheduling command indicates the transmission resources allocated by the network node, the transmission resources allocated by the network node are determined based on the configuration information of the target network node or based on the configuration information of the source network node;

[0527] The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

[0528] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0529] Sending configuration information of one or more candidate network nodes to the terminal, where the target network node is one or more network nodes among the candidate network nodes;

[0530] The configuration information of the candidate network node includes at least: physical layer resource configuration information of the candidate network node and / or scheduling parameter configuration information of the candidate network node.

[0531] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0532] First information is sent to the target network node, where the first information includes relevant information about the transmission resource.

[0533] In FIG10 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1010 and memory represented by memory 1020. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1000 may be a plurality of components, namely, including a transmitter and a transceiver, providing a unit for communicating with various other devices over a transmission medium. The processor 1010 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1010 when performing operations.

[0534] The processor 1010 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0535] It should be noted here that the above-mentioned network device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment applied to the network device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0536] In addition, a specific embodiment of the present disclosure further provides a processor-readable storage medium having a computer program stored thereon, wherein when the program is executed by the processor, the steps of the cross-node scheduling method described above are implemented and the same technical effect is achieved. To avoid repetition, it is not described here. The readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as a floppy disk, a hard disk, a tape, a magneto-optical (MO)), etc.), optical storage (such as a laser disc (Compact Disk, CD), a digital versatile disc (Digital Versatile Disc, DVD), a Blu-ray Disc (Blu-ray Disc, BD), a high-definition versatile disc (High-Definition Versatile Disc, HVD), etc.), and semiconductor memory (such as ROM, Erasable Programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), non-volatile memory (NAND FLASH), solid-state disk (SSD), etc.

[0537] It should be noted that the technical solutions provided by the embodiments of the present disclosure can be applicable to a variety of systems, especially 5G systems. For example, applicable systems may be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new air interface (NR) systems, etc. These various systems include terminal devices and network devices. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0538] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0539] The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be called another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0540] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also be diversity transmission, precoded transmission, or beamforming transmission.

[0541] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0542] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable 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, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one process or multiple processes in the flowchart and / or one box or multiple boxes in the block diagram.

[0543] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0544] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0545] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A cross-node scheduling method, comprising: The terminal receives a dynamic scheduling command sent by a source network node; The dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, where the transmission resources are transmission resources for data transmission between the terminal and the target network node; The terminal performs data transmission with the target network node according to the transmission resource.

2. The method according to claim 1, wherein: The dynamic scheduling command is carried by a media access control MAC layer control command, and / or the dynamic scheduling command is carried by a physical layer downlink control channel PDCCH.

3. The method according to claim 1, wherein: The dynamic scheduling command includes at least one of the following information: The identification of the target network node; Random access resource indication information; Transmission resources allocated by network nodes; Transmission delay indication information; Downlink timing offset; Uplink timing advance; After the terminal receives the dynamic scheduling command, the activation status information of the source network node; The activated bandwidth part BWP of the target network node.

4. The method according to claim 3, wherein: The random access resource indication information includes: Instruction information for initiating non-contention random access, including information on resources for non-contention random access; or Indication information for initiating contention random access.

5. The method according to claim 3, wherein: The transmission resource allocated by the network node is determined based on the configuration information of the source network node, or based on the configuration information of the target network node; The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

6. The method according to claim 3, wherein: The transmission delay indication information is used to indicate the sending time of the data transmission indicated by the dynamic scheduling command; The transmission delay indication information includes at least one of the following: An offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command; The activation time and transmission delay value of the target network node; The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

7. The method according to claim 3, wherein: In the case where the dynamic scheduling command does not include an activated BWP of the target network node, the method further comprises: Determining that a target BWP is an activated BWP of the target network node, the target BWP comprising one of the following: The initial BWP of the target network node; Preset BWP; Preconfigured first BWP.

8. The method according to claim 1, wherein: Before receiving the dynamic scheduling command sent by the source network node, the method further includes: Acquire random access resource configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes; The performing data transmission with the target network node according to the transmission resource includes: Initiate random access at the target network node according to the first random access resource indicated by the dynamic scheduling command, and perform data transmission with the target network node; The first random access resource is determined according to the random access resource configuration of the target network node.

9. The method according to claim 1, wherein: The performing data transmission with the target network node according to the transmission resource includes: Initiating random access with a target network node at the source network node according to the second random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node; The second random access resource is determined according to the random access resource configuration of the source network node.

10. The method according to claim 1, wherein: Before receiving the dynamic scheduling command sent by the source network node, the method further includes: Acquire configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes; the configuration information of the candidate network nodes at least includes: physical layer resource configuration information of the candidate network nodes and / or scheduling parameter configuration information of the candidate network nodes; The performing data transmission with the target network node according to the transmission resource includes: performing data transmission with the target network node according to the first allocated resources indicated by the dynamic scheduling command; The first allocated resources are determined based on configuration information of the target network node.

11. The method according to claim 1, wherein: The performing data transmission with the target network node according to the transmission resource includes: performing data transmission with the target network node according to the second allocated resources indicated by the dynamic scheduling command; The second allocated resources are determined based on the configuration information of the source network node, and the configuration information of the source network node at least includes: physical layer resource configuration information of the source network node and / or scheduling parameter configuration information of the source network node.

12. A cross-node scheduling method, comprising: The source network node sends a dynamic scheduling command to the terminal; The dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, where the transmission resources are transmission resources used by the terminal to perform data transmission with the target network node.

13. The method according to claim 12, wherein: The dynamic scheduling command is carried by a media access control MAC layer control command, and / or the dynamic scheduling command is carried by a PDCCH.

14. The method according to claim 12, wherein: The dynamic scheduling command includes at least one of the following information: The identification of the target network node; Random access resource indication information; Transmission resources allocated by network nodes; Transmission delay indication information; Downlink timing offset; Uplink timing advance; After the terminal receives the dynamic scheduling command, the activation status information of the source network node; Activate BWP of target network node.

15. The method according to claim 14, wherein: The random access resource indication information includes: Instruction information for initiating non-contention random access, including information on resources for non-contention random access; or Indication information for initiating contention random access.

16. The method according to claim 14, wherein: The transmission resource allocated by the network node is determined based on the configuration information of the source network node, or based on the configuration information of the target network node; The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

17. The method according to claim 14, wherein: The transmission delay indication information is used to indicate the sending time of the data transmission indicated by the dynamic scheduling command; The transmission delay indication information includes at least one of the following: An offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command; The activation time and transmission delay value of the target network node; The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

18. The method according to claim 12, wherein: In the case where the dynamic scheduling command indicates a random access resource, the random access resource is determined according to the random access resource configuration of the source network node, or is determined according to the random access resource configuration of the target network node.

19. The method according to claim 12, wherein: The method further comprises: Random access resource configuration information of one or more candidate network nodes is sent to the terminal; the target network node is one or more network nodes among the candidate network nodes.

20. The method according to claim 12, wherein: In the case where the dynamic scheduling command indicates the transmission resources allocated by the network node, the transmission resources allocated by the network node are determined based on the configuration information of the target network node or based on the configuration information of the source network node; The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

21. The method according to claim 12, wherein: The method further comprises: Sending configuration information of one or more candidate network nodes to the terminal, wherein the target network node is one or more network nodes among the candidate network nodes; The configuration information of the candidate network node at least includes: physical layer resource configuration information of the candidate network node and / or scheduling parameter configuration information of the candidate network node.

22. The method according to claim 12, wherein: The method further comprises: Sending first information to the target network node, where the first information includes relevant information about the transmission resource.

23. A terminal, comprising: Memory, transceiver, processor: Memory for storing computer programs; a transceiver for receiving and sending data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Receiving a dynamic scheduling command sent by a source network node; the dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, the transmission resources being transmission resources for data transmission between a terminal and a target network node; Data is transmitted with the target network node according to the transmission resource.

24. The terminal according to claim 23, wherein: The dynamic scheduling command is carried by a media access control MAC layer control command, and / or the dynamic scheduling command is carried by a physical layer downlink control channel PDCCH.

25. The terminal according to claim 23, wherein: The dynamic scheduling command includes at least one of the following information: The identification of the target network node; Random access resource indication information; Transmission resources allocated by network nodes; Transmission delay indication information; Downlink timing offset; Uplink timing advance; After the terminal receives the dynamic scheduling command, the activation status information of the source network node; The activated bandwidth part BWP of the target network node.

26. The terminal according to claim 25, wherein: The random access resource indication information includes: Instruction information for initiating non-contention random access, including information on resources for non-contention random access; or Indication information for initiating contention random access.

27. The terminal according to claim 25, wherein: The transmission resource allocated by the network node is determined based on the configuration information of the source network node, or based on the configuration information of the target network node; The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

28. The terminal according to claim 25, wherein: The transmission delay indication information is used to indicate the sending time of the data transmission indicated by the dynamic scheduling command; The transmission delay indication information includes at least one of the following: An offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command; The activation time and transmission delay value of the target network node; The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

29. The terminal according to claim 25, wherein: The processor is configured to read the computer program in the memory and perform the following operations: Determining that a target BWP is an activated BWP of the target network node, the target BWP comprising one of the following: The initial BWP of the target network node; Preset BWP; Preconfigured first BWP.

30. The terminal according to claim 23, wherein: The processor is configured to read the computer program in the memory and perform the following operations: Acquire random access resource configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes; The performing data transmission with the target network node according to the transmission resource includes: The first random access resource indicated by the dynamic scheduling command is sent to the target network node. Random access and data transmission with the target network node; The first random access resource is determined according to the random access resource configuration of the target network node.

31. The terminal according to claim 23, wherein: The processor is configured to read the computer program in the memory and perform the following operations: Initiating random access with a target network node at the source network node according to the second random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node; The second random access resource is determined according to the random access resource configuration of the source network node.

32. The terminal according to claim 23, wherein: The processor is configured to read the computer program in the memory and perform the following operations: Acquire configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes; the configuration information of the candidate network nodes at least includes: physical layer resource configuration information of the candidate network nodes and / or scheduling parameter configuration information of the candidate network nodes; performing data transmission with the target network node according to the first allocated resources indicated by the dynamic scheduling command; The first allocated resources are determined based on configuration information of the target network node.

33. The terminal according to claim 23, wherein: The processor is configured to read the computer program in the memory and perform the following operations: performing data transmission with the target network node according to the second allocated resources indicated by the dynamic scheduling command; The second allocated resources are determined based on the configuration information of the source network node, and the configuration information of the source network node at least includes: physical layer resource configuration information of the source network node and / or scheduling parameter configuration information of the source network node.

34. A network device comprising: Memory, transceiver, processor: Memory for storing computer programs; a transceiver for receiving and sending data under the control of the processor; A processor, configured to read the computer program in the memory and execute the steps of the cross-node scheduling method according to any one of claims 12 to 22.

35. A cross-node scheduling device, comprising: A first receiving unit, configured to receive a dynamic scheduling command sent by a source network node; The dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, where the transmission resources are transmission resources for data transmission between the terminal and the target network node; A transmission unit is used to perform data transmission with the target network node according to the transmission resource.

36. The device according to claim 35, wherein The dynamic scheduling command is carried by a media access control MAC layer control command, and / or the dynamic scheduling command is carried by a physical layer downlink control channel PDCCH.

37. The device according to claim 35, wherein: The dynamic scheduling command includes at least one of the following information: The identification of the target network node; Random access resource indication information; Transmission resources allocated by network nodes; Transmission delay indication information; Downlink timing offset; Uplink timing advance; After the terminal receives the dynamic scheduling command, the activation status information of the source network node; The activated bandwidth part BWP of the target network node.

38. The device according to claim 37, wherein The random access resource indication information includes: Instruction information for initiating non-contention random access, including information on resources for non-contention random access; or Indication information for initiating contention random access.

39. The device according to claim 37, wherein: The transmission resource allocated by the network node is determined based on the configuration information of the source network node, or based on the configuration information of the target network node; The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

40. The apparatus of claim 37, wherein: The transmission delay indication information is used to indicate the sending time of the data transmission indicated by the dynamic scheduling command; The transmission delay indication information includes at least one of the following: An offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command; The activation time and transmission delay value of the target network node; The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

41. The apparatus of claim 37, wherein: The device also includes: A first determining unit is configured to determine that a target BWP is an activated BWP of the target network node, wherein the target BWP includes one of the following: The initial BWP of the target network node; Preset BWP; Preconfigured first BWP.

42. The apparatus of claim 35, wherein: The device also includes: A first acquisition unit, configured to acquire random access resource configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes; The transmission unit is specifically configured to: initiate random access at the target network node according to the first random access resource indicated by the dynamic scheduling command, and perform data transmission with the target network node; The first random access resource is determined according to the random access resource configuration of the target network node.

43. The apparatus of claim 35, wherein: The transmission unit is specifically used for: Initiating random access with a target network node at the source network node according to the second random access resource indicated by the dynamic scheduling command, and performing data transmission with the target network node; The second random access resource is determined according to the random access resource configuration of the source network node.

44. The apparatus of claim 35, wherein: The device also includes: A second acquisition unit is used to acquire configuration information of one or more candidate network nodes, wherein the target network node is one or more network nodes among the candidate network nodes; the configuration information of the candidate network nodes at least includes: physical layer resource configuration information of the candidate network nodes and / or scheduling parameter configuration information of the candidate network nodes; The transmission unit is specifically configured to: allocate resources according to the first allocation resource indicated by the dynamic scheduling command and The target network node performs data transmission; The first allocated resources are determined based on configuration information of the target network node.

45. The apparatus of claim 35, wherein: The transmission unit is specifically used for: performing data transmission with the target network node according to the second allocated resources indicated by the dynamic scheduling command; The second allocated resources are determined based on the configuration information of the source network node, and the configuration information of the source network node at least includes: physical layer resource configuration information of the source network node and / or scheduling parameter configuration information of the source network node.

46. ​​A cross-node scheduling device, comprising: A first sending unit, configured to send a dynamic scheduling command to a terminal; The dynamic scheduling command is used to activate transmission resources and / or to schedule transmission resources, where the transmission resources are transmission resources used by the terminal to perform data transmission with the target network node.

47. The device according to claim 46, wherein The dynamic scheduling command is carried by a media access control MAC layer control command, and / or the dynamic scheduling command is carried by a PDCCH.

48. The apparatus of claim 46, wherein: The dynamic scheduling command includes at least one of the following information: The identification of the target network node; Random access resource indication information; Transmission resources allocated by network nodes; Transmission delay indication information; Downlink timing offset; Uplink timing advance; After the terminal receives the dynamic scheduling command, the activation status information of the source network node; Activate BWP of target network node.

49. The apparatus of claim 48, wherein: The random access resource indication information includes: Instruction information for initiating non-contention random access, including information on resources for non-contention random access; or Indication information for initiating contention random access.

50. The apparatus of claim 48, wherein: The transmission resource allocated by the network node is determined based on the configuration information of the source network node, or based on the configuration information of the target network node; The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

51. The apparatus of claim 48, wherein: The transmission delay indication information is used to indicate the sending time of the data transmission indicated by the dynamic scheduling command; The transmission delay indication information includes at least one of the following: An offset value of a sending time of the data transmission indicated by the dynamic scheduling command relative to a sending time of the dynamic scheduling command; The activation time and transmission delay value of the target network node; The dynamic scheduling command indicates the absolute time at which the data transmission takes effect.

52. The apparatus of claim 46, wherein: In the case where the dynamic scheduling command indicates a random access resource, the random access resource is determined according to a random access resource configuration of the source network node, or is determined according to a random access resource configuration of the target network node.

53. The apparatus of claim 46, wherein: The device also includes: The second sending unit is used to send random access resource configuration information of one or more candidate network nodes to the terminal; the target network node is one or more network nodes among the candidate network nodes.

54. The apparatus of claim 46, wherein: In the case where the dynamic scheduling command indicates the transmission resources allocated by the network node, the transmission resources allocated by the network node are determined based on the configuration information of the target network node or based on the configuration information of the source network node; The configuration information at least includes: physical layer resource configuration information and / or scheduling parameter configuration information.

55. The apparatus of claim 46, wherein: The device also includes: A third sending unit, configured to send configuration information of one or more candidate network nodes to the terminal, wherein the target network node is one or more network nodes among the candidate network nodes; The configuration information of the candidate network node at least includes: physical layer resource configuration information of the candidate network node and / or scheduling parameter configuration information of the candidate network node.

56. The apparatus of claim 46, wherein: The device also includes: A fourth sending unit is configured to send first information to the target network node, wherein the first information Including relevant information of the transmission resource.

57. A processor-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the cross-node scheduling method as described in any one of claims 1 to 11, or implements the steps of the cross-node scheduling method as described in any one of claims 12 to 22.

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