A high-low frequency cross-carrier scheduling method, device, terminal and base station

Abstract

The present invention discloses a high-low frequency cross-carrier scheduling method, apparatus, terminal and base station. The method includes the following steps: The base station sends scheduling information corresponding to services to the terminal UE through a low-frequency carrier; after the UE receives the scheduling information, the base station sends service data corresponding to the scheduling information to the UE through a high-frequency carrier; the base station receives response information fed back by the UE according to the service data through the low-frequency carrier. In the method of the present invention, the base station sends scheduling information corresponding to services to the terminal UE through a low-frequency carrier; after the UE receives the scheduling information, service data corresponding to the scheduling information is sent to the UE through a high-frequency carrier, thereby achieving the technical effect of interacting with the terminal according to the scheduling information and solving the existing technical problems.

Description

Technical Field

[0001] The present invention relates to the field of communication technologies, and in particular, to a high-low frequency cross-carrier scheduling method, apparatus, terminal, and base station. Background Art

[0002] With the popularization of smart terminals and the diversity of services, the demand for mobile data has increased exponentially. In the near future, with the significant growth of smart terminals and tablet devices and the increase in data traffic consumed by single users, future networks will need to provide a capacity demand 1000 times that of existing networks. The 5G NR high-low frequency networking scenario is an important scenario for 5G applications. In the CA (Carrier Aggregation) scenario of joint networking of low-frequency bands (FR1) and high-frequency bands (FR2), since the high-frequency uplink coverage is limited, carrying control signaling on the low-frequency band and service on the high-frequency band can effectively improve the robustness of the system.

[0003] The problems existing in current low-frequency carrier scheduling of high-frequency carriers are: limited coverage of high-frequency band carriers and how to notify the terminal of multi-slot related scheduling information. Summary of the Invention

[0004] Embodiments of the present invention provide a high-low frequency cross-carrier scheduling method, apparatus, terminal, and base station, which are used to notify the terminal of multi-slot related scheduling information and overcome the problem of limited coverage of high-frequency band carriers.

[0005] In a first aspect, a first embodiment of the present invention proposes a high-low frequency cross-carrier scheduling method, which is applied to the base station side. The method includes the following steps:

[0006] The base station sends scheduling information corresponding to the service to the terminal UE through the low-frequency carrier;

[0007] After the UE receives the scheduling information, the base station sends service data corresponding to the scheduling information to the UE through the high-frequency carrier;

[0008] The base station receives response information fed back by the UE according to the service data through the low-frequency carrier.

[0009] Optionally, when the service is carrier scheduling, the scheduling information sent by the base station to the terminal through the low-frequency carrier includes: physical downlink shared channel PDSCH service parameters of the high-frequency carrier, QCL relationship of the PDSCH service, and parameters for the terminal to feedback hybrid automatic repeat request feedback HARQ.

[0010] Optionally, the PDSCH service parameters include slot parameters at the start of the PDSCH service, where the slot parameters at the start of the PDSCH service are determined according to the subcarrier spacing of the high-frequency carrier;

[0011] The parameters for the terminal to feedback HARQ include the feedback time slot for the terminal to feedback HARQ-ACK, where the feedback time slot is determined according to the subcarrier spacing of the low-frequency carrier;

[0012] The QCL relationship of the PDSCH service includes the high-frequency carrier ID and the high-frequency carrier reference signal.

[0013] Optionally, before the base station sends the scheduling information corresponding to the service to the terminal through the low-frequency carrier, the method further includes:

[0014] The base station calculates the time slot position where the PDSCH service starts according to the scheduling information of the low-frequency carrier;

[0015] Determine the scheduling time slot length according to the time slot position where the PDSCH service starts and the subcarrier spacing of the high-frequency carrier.

[0016] Optionally, the base station sending the scheduling information corresponding to the service to the UE through the low-frequency carrier includes:

[0017] The base station notifies the terminal of the physical downlink control channel PDCCH control signaling including the time slot position and the time slot length through the downlink control information DCI of the low-frequency carrier.

[0018] Optionally, the base station sending the service data corresponding to the scheduling information to the UE through the high-frequency carrier includes:

[0019] The base station sends the PDSCH service data to the terminal through the high-frequency carrier according to the time slot position and the time slot length.

[0020] Optionally, the base station receiving the response information fed back by the UE according to the service data through the low-frequency carrier includes:

[0021] The base station receives the HARQ response information fed back by the UE based on the service data according to the feedback time slot through the low-frequency carrier.

[0022] Optionally, in the case where the service is to report an aperiodic channel state information CSI report, the scheduling information sent by the base station to the terminal through the low-frequency carrier includes:

[0023] The resource position of the channel state information reference signal CSI-RS resource in the high-frequency time slot and the QCL relationship for receiving the CSI-RS.

[0024] Optionally, before the base station sends the scheduling information corresponding to the service to the terminal through the low-frequency carrier, the method further includes:

[0025] The base station calculates the position of the CSI-RS time slot based on the time slot of the downlink control information (DCI) of the low-frequency carrier scheduling system information block and high-layer parameters.

[0026] Optionally, the base station sends the service data corresponding to the scheduling information to the UE through a high-frequency carrier, including: the base station sends the CSI-RS resource to the UE through the high-frequency carrier according to the position of the CSI-RS time slot.

[0027] Optionally, the base station receives the response information fed back by the UE according to the service data through a low-frequency carrier, including: the base station receives the CSI measurement report reported by the UE on the PUCCH or PUSCH through the low-frequency carrier.

[0028] Optionally, when the base station sends the scheduling information corresponding to the service to the UE through the low-frequency carrier, it further includes:

[0029] The base station notifies the UE of the beam direction for receiving the physical downlink control channel (PDCCH) service through the low-frequency carrier RRC signaling or MAC control element (MAC-CE).

[0030] In a second aspect, a high-low frequency cross-carrier scheduling method according to a second embodiment of the present invention is applied to the terminal side.

[0031] Receive the scheduling information corresponding to the service sent by the base station through the low-frequency carrier;

[0032] After receiving the scheduling information, receive the service data corresponding to the scheduling information sent by the base station through the high-frequency carrier according to the scheduling information;

[0033] Perform a service response according to the service data and feedback response information to the base station through the low-frequency carrier.

[0034] Optionally, the step of receiving the scheduling information corresponding to the service sent by the base station through the low-frequency carrier includes: receiving the physical downlink control channel (PDCCH) service carrying the scheduling information in the beam direction indicated by the base station through the low-frequency carrier RRC signaling or MAC control element (MAC-CE).

[0035] Optionally, when the service is carrier scheduling, the step of performing a service response according to the service data and feedbacking response information to the base station through the low-frequency carrier includes:

[0036] Receive and decode the PDSCH service sent by the base station through the high-frequency carrier;

[0037] According to the decoding result, feedback the HARQ response information at the feedback time indication according to the service data through the low-frequency carrier.

[0038] Optionally, when the service is to report an aperiodic channel state information (CSI) report, the method of performing a service response according to the service data and feeding back response information to the base station through a low-frequency carrier includes:

[0039] Receiving a CSI-RS signal sent by the base station and performing measurements according to the CSI-RS signal;

[0040] After the measurement is completed, reporting a measurement report of CSI on a PUCCH or a PUSCH through a low-frequency carrier.

[0041] In a third aspect, a high-low frequency cross-carrier scheduling device according to a third embodiment of the present invention, the device applied to the base station side includes:

[0042] An information sending module, configured to send scheduling information corresponding to a service to a terminal UE through a low-frequency carrier. After the UE receives the scheduling information, the base station sends service data corresponding to the scheduling information to the UE through a high-frequency carrier;

[0043] An information receiving module, configured to receive response information fed back by the UE according to the service data through a low-frequency carrier.

[0044] In a fourth aspect, a high-low frequency cross-carrier scheduling device according to a fourth embodiment of the present invention, the device applied to the terminal side includes:

[0045] A data receiving module, configured to receive scheduling information corresponding to a service sent by the base station through a low-frequency carrier. After the scheduling information is received, the data receiving module receives service data corresponding to the scheduling information sent by the base station through a high-frequency carrier according to the scheduling information;

[0046] A data processing module, configured to perform a service response according to the service data and feed back response information to the base station through a low-frequency carrier.

[0047] In a fifth aspect, a base station according to a fifth embodiment of the present invention includes: a memory, a processor, and a computer program stored on the memory and executable on the processor. When the computer program is executed by the processor, the steps of the scheduling method described in the first embodiment are implemented.

[0048] In a sixth aspect, a terminal according to a sixth embodiment of the present invention includes: a memory, a processor, and a computer program stored on the memory and executable on the processor. When the computer program is executed by the processor, the steps of the scheduling method described in the second embodiment are implemented.

[0049] In an embodiment of the present invention, the base station sends scheduling information corresponding to services to the terminal UE through a low-frequency carrier; after the UE receives the scheduling information, the base station sends service data corresponding to the scheduling information to the UE through a high-frequency carrier; the base station receives response information fed back by the UE according to the service data through the low-frequency carrier, thereby achieving the effect of notifying the terminal according to the scheduling information, effectively overcoming the problem of limited coverage of the uplink high-frequency band carrier, and bringing higher system stability by carrying control signaling in the low-frequency band. The existing technical problems are solved.

[0050] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following specifically describes the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0052] Figure 1 is a flowchart of the first embodiment of the present invention;

[0053] Figure 2 is a schematic diagram of the relationship between high and low frequency carrier scheduling time slots in the first embodiment of the present invention;

[0054] Figure 3 is a flowchart of the third embodiment of the present invention;

[0055] Figure 4 is a flowchart of the sixth embodiment of the present invention;

[0056] Figure 5 is a schematic diagram of the process of the present invention;

[0057] Figure 6 is a schematic diagram of the structure of the seventh embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0058] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0059] First Embodiment

[0060] The first embodiment of the present invention provides a high-low frequency cross-carrier scheduling method, as Figure 1 shown, including the following steps:

[0061] Step S2: The base station sends scheduling information corresponding to the service to the terminal UE through the low-frequency carrier.

[0062] Step S3: After the UE receives the scheduling information, the base station sends service data corresponding to the scheduling information to the UE through the high-frequency carrier.

[0063] Step S4: The base station receives response information fed back by the UE according to the service data through the low-frequency carrier.

[0064] Specifically, the high-low frequency cross-carrier scheduling method in this embodiment is applied to the base station side. Through this method, it is possible to notify the UE of the scheduling information carried on the low-frequency carrier according to different service requirements, which can effectively overcome the problem of limited coverage of the uplink high-frequency band carrier, and at the same time, it can utilize the advantage of high peak throughput brought by the large bandwidth of the downlink high-frequency band carrier. By carrying the control signaling on the low-frequency band, higher system stability can be achieved.

[0065] In an optional embodiment of the present invention, before step S2, the scheduling method may further include step S0: Configure the base station according to the service type, and send the configuration information to the UE through the low-frequency carrier.

[0066] In an optional embodiment of the present invention, when the service is carrier scheduling, the scheduling information includes: physical downlink shared channel PDSCH service parameters of the high-frequency carrier, quasi-position QCL relationship of the PDSCH service, and parameters of the terminal feedback hybrid automatic repeat request feedback HARQ.

[0067] Specifically, when carrier scheduling, the base station uses the downlink control information DCI on the physical downlink control channel PDCCH of the low-frequency carrier to indicate the time slot of the PDSCH service carried on the high-frequency carrier for the UE, the QCL relationship for the UE to receive the PDSCH, and the time slot for the UE to feedback HARQ-ACK on the low-frequency carrier.

[0068] In this embodiment, the high-frequency carrier PDSCH service parameters include: time slot parameters for the start of uploading the high-frequency carrier PDSCH service;

[0069] The time slot parameters for the start of uploading the high-frequency carrier PDSCH service are determined according to the subcarrier spacing of the high-frequency carrier.

[0070] Specifically, when carrier scheduling, as Figure 2As shown, the base station has a time slot parameter K0 at the start position of the time slot for PDSCH service transmission in the radio resource control (RRC) signaling parameter configuration. The time slot parameter K0 is in units of the number of time slots of the high-frequency carrier, and the value can be 0, 1, 2,... etc. The base station notifies the UE in the downlink control information (DCI) of the time slot length scheduled by a DCI on the high-frequency carrier. The time slot length is referenced by the subcarrier spacing of the high-frequency carrier. One time slot length can include one or more time slots. For example, one time slot length can include three or four time slots.

[0071] The parameters for the terminal to feedback HARQ include the feedback time slot for the terminal to feedback HARQ-ACK. Among them, the feedback time slot is determined according to the subcarrier spacing of the low-frequency carrier.

[0072] Specifically, when carrier scheduling, the value of K1 indicated in the HARQ-ACK feedback field in the PDCCH DCI is in units of the number of time slots of the low-frequency carrier, and the value can be 0, 1, 2,... etc. The value of K1 represents the time interval parameter for the PDSCH to receive the terminal's feedback HARQ-ACK.

[0073] The QCL relationship of the PDSCH service includes the high-frequency carrier ID and the high-frequency carrier reference signal.

[0074] When carrier scheduling, the QCL relationship in the TCI-state indicated in the TCI field in the PDCCH DCI uses the ID and reference signal of the high-frequency carrier to fill in the SSB and CSI-RS resource indexes on the high-frequency carrier.

[0075] By adopting the above technical means, through the method of cross-carrier scheduling between the low-frequency band carrier CC1 and the high-frequency band carrier CC2, a method for determining the parameters K0 and K1 of the base station HARQ process and a method for notifying the time slot parameters of multi-time slot simultaneous scheduling are given, solving the technical problem of how to determine the parameter K related to the HARQ (Hybrid Automatic Repeat reQuest) scheduling process of the low-frequency carrier scheduling the high-frequency carrier in the prior art.

[0076] Optionally, in an alternative embodiment of the present invention, when the base station sends scheduling information corresponding to the service to the UE through the low-frequency carrier, it further includes:

[0077] The base station notifies the UE of the beam direction for receiving the physical downlink control channel (PDCCH) service through the low-frequency carrier RRC signaling or the MAC control element (MAC-CE).

[0078] Specifically, when the service is carrier scheduling, the base station indicates to the UE, through the PDCCH DCI information on the low-frequency carrier, the time slot for the PDSCH service carried on the high-frequency carrier, the QCL relationship for the UE to receive the PDSCH, and the time slot for feedback HARQ-ACK on the low-frequency carrier.

[0079] Specifically, the beam direction for the UE to receive the PDCCH service sent by the base station through the low-frequency carrier can be notified to the UE by the base station through the low-frequency carrier RRC signaling or the MAC control command MAC-CE.

[0080] In this embodiment, the base station can also notify the UE, in the RRC signaling, of multiple possibilities for the beam direction to receive the PDSCH service on the high-frequency carrier CC2, so that the UE can select the corresponding beam direction to receive the PDSCH service on CC2 from among the multiple possibilities.

[0081] Optionally, in another optional embodiment of the present invention, when the service requirement is carrier scheduling, before step S2, there is also step S1: calculating the scheduling information of the high-frequency carrier based on the scheduling parameters of the low-frequency carrier according to the service type, including:

[0082] The base station calculates the time slot position at which the PDSCH service starts according to the scheduling information of the low-frequency carrier;

[0083] Determine the scheduling time slot length according to the time slot position at which the PDSCH service upload starts on the high-frequency carrier and the subcarrier spacing of the high-frequency carrier.

[0084] Specifically, in this embodiment, the base station calculates the position at which the time slot for allocating the PDSCH service on the high-frequency carrier CC2 starts where n is the time slot of the low-frequency carrier CC1 scheduling DCI, μ-cc1 is the low-frequency carrier scheduling coefficient, μ-cc2 is the high-frequency carrier scheduling coefficient, K0 is the time slot parameter, and the base station determines the time slot length △n of this scheduling, and △n is referenced to the subcarrier spacing of the high-frequency carrier CC2.

[0085] The base station sends the scheduling information corresponding to the service to the UE through the low-frequency carrier, including;

[0086] The base station notifies the terminal, through the DCI of the low-frequency carrier, of the control signaling of the PDCCH containing the time slot position and the time slot length.

[0087] Specifically, the base station notifies the UE, in the DCI of the low-frequency carrier CC1, of the time slot length △n (value range time slots) for the high-frequency carrier CC2 scheduling.

[0088] Optionally, the base station sends the service data corresponding to the scheduling information to the UE through the high-frequency carrier, including:

[0089] The base station sends PDSCH services to the terminal through a high-frequency carrier according to the time slot position and time slot length.

[0090] Specifically, the base station starts to send PDSCH services at the time slot position of carrier CC2 and the time slot length is △n.

[0091] Specifically, the base station sends scheduling information corresponding to the service to the UE through a low-frequency carrier, which may be: the base station notifies the UE of the time slot parameter K0 at the start of PDSCH service transmission on CC2 and the time slot length △n in the RRC signaling; the base station notifies the UE of the value range of the feedback time slot parameter K1 of the downlink data on CC1 in the RRC signaling; the base station notifies the UE of multiple possible beam directions for receiving PDSCH services on CC2 in the RRC signaling.

[0092] In another optional embodiment of the present invention, step S4: the base station receives the response information fed back by the UE according to the service data through a low-frequency carrier, including: the base station receives the HARQ response information fed back by the UE based on the service data according to the feedback time slot through a low-frequency carrier.

[0093] Second Embodiment

[0094] Based on the first embodiment, a high-low frequency cross-carrier scheduling method is proposed in the second embodiment of the present invention, which is applied to the terminal side and includes the following steps:

[0095] Receive the scheduling information corresponding to the service sent by the base station through a low-frequency carrier;

[0096] After receiving the scheduling information, receive the service data corresponding to the scheduling information sent by the base station through a high-frequency carrier according to the scheduling information;

[0097] Perform a service response according to the service data and feedback the response information to the base station through a low-frequency carrier.

[0098] Optionally, receive the physical downlink control channel PDCCH service in the beam direction indicated by the base station through the low-frequency carrier RRC signaling or the MAC control command MAC-CE, and the scheduling information is carried in the PDCCH service.

[0099] Specifically, the UE can receive the PDCCH in the beam direction corresponding to the TCI-state indicated by the RRC signaling or MAC-CE sent by the base station through a low-frequency carrier.

[0100] In this embodiment, the UE can also select a corresponding beam direction for receiving the PDSCH service on CC2 from multiple possibilities of the beam direction of the PDSCH service carried on the high-frequency carrier CC2 notified by the base station in the RRC signaling, and the UE can receive the PDSCH service based on the selected beam direction for receiving the PDSCH service.

[0101] In an alternative embodiment of the present invention, when the service is carrier scheduling, the performing a service response according to the service data and feeding back response information to the base station through a low-frequency carrier includes:

[0102] Receiving and decoding the PDSCH service sent by the base station through the high-frequency carrier;

[0103] Feeding back response information according to the decoding result through the low-frequency carrier at the feedback time indication according to the service data.

[0104] Specifically, the solution is to receive and decode the PDSCH service sent by the base station through the high-frequency carrier;

[0105] If the UE decodes successfully, it feeds back an ACK at the CC1 PDSCH-to-HARQ_feedback timing indicator time; otherwise, it feeds back a NACK.

[0106] Specifically, in the specific implementation process, the HARQ-ACK field can also be used as another feedback method. If the feedback HARQ-ACK = 1, it means successful decoding; if the feedback HARQ-ACK = 0, the decoding is unsuccessful, corresponding to the aforementioned feedback ACK or NACK respectively.

[0107] In this embodiment, after the UE finishes receiving the scheduling information, the UE receives the service data corresponding to the scheduling information sent by the base station through the high-frequency carrier according to the scheduling information, performs a service response according to the service data, and feeds back response information to the base station through the low-frequency carrier.

[0108] Specifically, the UE receives the PDSCH service according to the time slot resources allocated by the PDCCH DCI on CC1; the beam direction for the UE to receive the PDSCH on CC2 is obtained from the TCI field in the DCI; the UE feeds back HARQ-ACK on the uplink PUCCH / PUSCH according to the HARQ feedback time indication in the DCI on CC1.

[0109] Third Embodiment

[0110] Based on the second embodiment, the third embodiment of the present invention proposes a high-low frequency cross-carrier method, as Figure 3 shown, including the following steps:

[0111] Step S100: The base station configures the start position of the transmission time slot on the high-frequency carrier in the K0 field of the RRC signaling:

[0112] In the PDSCH-Config->PDSCH-TimeDomainResourceAllocation cell, the K0 field configures the start position of the transmission time slot on the high-frequency carrier. The time slot value of K0 is referenced by the subcarrier spacing of the PDSCH (for a 120K subcarrier spacing, μ-cc2 = 3), and the value range of K0 is (0..32);

[0113] The base station configures the K1 parameter in the RRC signaling PUCCH-Config->dl-DataToUL-ACK for the HAAQ-ACK process. The time slot value of K1 is referenced by the subcarrier spacing of the low-frequency carrier (for a 30K subcarrier spacing, μ-cc1 = 1), and the value range of K1 is (0..15);

[0114] The base station fills in the low-frequency carrier ID and the low-frequency carrier reference signal (such as SSB, CSI-RS) in the TCI-state of the RRC signaling ControlResourceSet->tci-StatesPDCCH-ToAddList.

[0115] The base station fills in the high-frequency carrier ID and the high-frequency carrier reference signal (such as SSB, CSI-RS) in the TCI-state of the RRC signaling PDSCH-Config->tci-StatesToAddModList. After these parameter configurations are completed, the UE is notified.

[0116] Step S101: The base station calculates the start position of the PDSCH service time slot allocated on the high-frequency carrier CC2 where n is the time slot of the DCI scheduled by the low-frequency carrier CC1; the base station determines the time slot length △n of this scheduling, and △n is referenced by the subcarrier spacing of the high-frequency carrier CC2.

[0117] Step S102: The base station notifies the UE of the time slot length △n (value range) of the high-frequency carrier CC2 scheduling in the DCI of the low-frequency carrier CC1 Time slot), time domain resource location, frequency domain resource location, PDSCH-to-HARQ_feedback timing indicator for HARQ-ACK feedback (value range: 0 - 15), Transmission configuration indication for PDSCH QCL relationship. Among them, the reference signal in the TCI-states reflecting the PDSCH QCL relationship is the SSB or CSI-RS resource index of carrier CC2;

[0118] Step S103: The UE receives the PDCCH in the beam direction corresponding to the TCI-state indicated by the RRC signaling or MAC-CE;

[0119] Step S104: The base station starts transmitting PDSCH services at the time slot position of carrier CC2 with a time slot length of Δn;

[0120] Step S105: The UE receives and decodes the PDSCH;

[0121] Step S106: If the UE decodes successfully, it feeds back ACK at the PDSCH-to-HARQ_feedback timing indicator time on carrier CC1; otherwise, it feeds back NACK.

[0122] Therefore, during carrier scheduling, the base station notifies the UE in the RRC signaling of the time slot parameter K0 and time slot length Δn at which the PDSCH service starts transmission on CC2; the base station notifies the UE in the RRC signaling of the value range of the time slot parameter K1 for downlink data feedback on CC1; the base station notifies the UE in the RRC signaling of multiple possibilities of the beam direction for receiving the PDSCH service on CC2.

[0123] The UE receives the PDSCH service on CC2 according to the time slot resources allocated by the PDCCH DCI on CC1; the beam direction for the UE to receive the PDSCH on CC2 is obtained from the TCI field in the DCI; the UE feeds back HARQ-ACK on the uplink PUCCH / PUSCH according to the HARQ feedback time indication in the DCI on CC1.

[0124] Fourth Embodiment

[0125] A high-low frequency cross-carrier scheduling method is proposed in the fourth embodiment of the present invention. Different from the first embodiment, in this embodiment, the service requirement is the case of reporting an aperiodic channel state information CSI report.

[0126] In this embodiment, the scheduling information sent by the base station to the terminal through the low-frequency carrier includes: the resource position of the Channel State Information-Reference Signal (CSI-RS) resource in the high-frequency time slot and the QCL relationship for receiving the CSI-RS.

[0127] Specifically, when reporting an aperiodic CSI report, the base station indicates to the UE the resource position of the CSI-RS (Channel State Information-Reference Signal) resource in the high-frequency time slot and the QCL relationship for receiving the CSI-RS through the PDCCH DCI information on the low-frequency carrier.

[0128] The scheduling information corresponding to the service sent by the base station to the UE through the low-frequency carrier further includes:

[0129] The base station notifies the UE of the beam direction of the Physical Downlink Control Channel (PDCCH) service through the low-frequency carrier RRC signaling or the MAC control element (MAC-CE).

[0130] Specifically, the beam direction of the PDCCH service received by the UE from the base station through the low-frequency carrier can be notified to the UE by the base station through the low-frequency carrier RRC signaling or the MAC-CE.

[0131] In this embodiment, the base station can also notify the UE to report a CSI measurement report through the CSI request in the CC1 DCI, and notify the UE of the beam direction for receiving the CSI-RS through the MAC CE command.

[0132] Specifically, when reporting an aperiodic CSI report, the base station configures the TCI-state list for the UE to receive the CSI-RS beam direction through the RRC signaling, and then maps the CSI request field in the DCI through the MAC CE command to indicate the specific beam direction for the UE to receive the CSI-RS.

[0133] Optionally, in an alternative embodiment of the present invention, before the base station sends the scheduling information corresponding to the service to the terminal through the low-frequency carrier, the method further includes:

[0134] The base station calculates the position of the CSI-RS time slot based on the time slot of the Downlink Control Information (DCI) scheduled by the low-frequency carrier and the high-layer parameters.

[0135] Specifically, the base station calculates the time slot for specifically sending the CSI-RS resource on CC2 through the high-layer parameters, and the base station calculates the position of the time slot for allocating the CSI-RS on the high-frequency carrier CC2. where n is the time slot for the low-frequency carrier CC1 to schedule DCI, and X is configured by the high-layer parameter aperiodicTriggeringOffset.

[0136] In another optional embodiment of the present invention, the base station sends service data corresponding to the scheduling information to the UE through a high-frequency carrier, including: the base station sends CSI-RS resources to the UE according to the position of the CSI-RS time slot.

[0137] Specifically, the base station starts to send CSI-RS at the time slot position of carrier CC2 and starts to send CSI-RS.

[0138] In an optional embodiment of the present invention, the base station receives response information fed back by the UE according to the service data through a low-frequency carrier, including: the base station receives a CSI measurement report reported by the UE on a PUCCH or PUSCH through the low-frequency carrier through the low-frequency carrier.

[0139] The fifth embodiment

[0140] Based on the fourth embodiment, the fifth embodiment of the present invention proposes a high-low frequency cross-carrier scheduling method, which is applied to the terminal side. Different from the second embodiment, in this embodiment, when the service requirement is to report an aperiodic channel state information CSI report, the method includes the following steps:

[0141] Receiving scheduling information corresponding to the service sent by the base station through the low-frequency carrier;

[0142] After the scheduling information is received, receiving service data corresponding to the scheduling information sent by the base station through the high-frequency carrier according to the scheduling information;

[0143] Performing a service response according to the service data, and feeding back response information to the base station through the low-frequency carrier.

[0144] In an optional embodiment of the present invention, the receiving scheduling information corresponding to the service sent by the base station through the low-frequency carrier includes: receiving a physical downlink control channel PDCCH service in a beam direction indicated by a low-frequency carrier RRC signaling or a MAC control command MAC-CE of the base station, and the scheduling information is carried in the PDCCH service..

[0145] Specifically, the UE receives the PDCCH in the beam direction corresponding to the TCI-state indicated by the RRC signaling or MAC-CE sent by the base station.

[0146] In this embodiment, the UE can also report a CSI measurement report based on a CSI request notification in CC1 DCI sent by the base station.

[0147] When reporting a non-periodic CSI report, specifically, the UE obtains the specific beam direction of the received CSI-RS according to the TCI-state list of the receiving CSI-RS beam direction configured by the base station through RRC signaling, and according to the indication of the CSI request field in the DCI mapped by the base station through the MAC CE command.

[0148] In the case where the service is reporting a non-periodic channel state information CSI report, performing a service response according to the service data and feeding back response information to the base station through a low-frequency carrier, includes:

[0149] receiving a CSI-RS signal sent by a base station, and performing measurement according to the CSI-RS signal;

[0150] After the measurement is completed, a CSI measurement report is reported on the PUCCH or PUSCH of the low-frequency carrier CC1.

[0151] Specifically, the UE receives the CSI-RS signal on CC2 and reports the CSI report on the PUCCH / PUSCH of CC1. The beam direction of the UE receiving the CSI-RS is obtained based on the mapping between the TCI states configured at the higher layer through the MAC CE command of the base station and the CSIrequest field in the DCI.

[0152] Sixth embodiment

[0153] Based on the fifth embodiment, the sixth embodiment of the present invention proposes a high-low frequency cross-carrier scheduling method, such as Figure 4 As shown, it is a flow chart of an embodiment of cross-carrier scheduling aperiodic CSI reporting of the present invention, which includes the following steps:

[0154] Step S200: The base station sends an RRC signal

[0155] Configure the aperiodic triggering slot offset X in CSI-MeasConfig->NZP-CSI-RS-ResourceSet->aperiodicTriggeringOffset. The value range of X is 0-6.

[0156] The TCI-state for UE to receive CSI-RS resources is configured in CSI-MeasConfig->CSI-AperiodicTriggerStatList, where the reference signal in the TCI-state configuration is the SSB and CSI-RS resource index of the high-frequency carrier CC2. After the above parameters are configured, the UE is notified.

[0157] Step S201: The base station calculates the position of the CSI-RS time slot allocated on the high-frequency carrier CC2. where n is the time slot of the DCI scheduled on the low-frequency carrier CC1, and X is configured by the higher-layer parameter aperiodicTriggeringOffset, with a value range of 0 - 6.

[0158] Step S202: The base station notifies the UE in the DCI of the low-frequency carrier CC1 to perform CSI report measurements; the MAC CE command notifies the UE of the beam direction for receiving CSI-RS.

[0159] Step S203: The UE receives the PDCCH in the beam direction corresponding to the TCI-state indicated by the RRC signaling or MAC-CE.

[0160] Step S204: The base station starts transmitting CSI-RS at the time slot position of the carrier CC2 ;

[0161] Step S205: The UE receives the CSI-RS signal and performs measurements.

[0162] Step S206: After the UE completes the measurement, it reports the CSI measurement report on the PUCCH or PUSCH of the low-frequency carrier CC1.

[0163] Therefore, when the base station needs the UE to report aperiodic channel measurement information, the base station notifies the UE to report the CSI measurement report through the CSI request in the CC1 DCI; the base station calculates the specific time slot for transmitting the CSI-RS resource on CC2 through higher-layer parameters.

[0164] The UE receives the CSI-RS signal on CC2 and reports the CSI report on the PUCCH / PUSCH of CC1. The beam direction for receiving CSI-RS is notified to the UE through the mapping between the TCI states configured by the higher layer and the CSI request field in the DCI by the MAC CE command.

[0165] By introducing the method of cross-carrier scheduling between the low-frequency carrier CC1 and the high-frequency carrier CC2, the technical problems of how to trigger the aperiodic CSI-RS report of channel measurement and how to notify the terminal are solved.

[0166] In summary, as Figure 5As shown in the figure, it is a flowchart of the present invention. By scheduling a high-frequency carrier on a gNB low-frequency carrier or triggering CSI reporting, the UE reports HARQ-ACK and aperiodic CSI reports on the low-frequency carrier PUCCH / PUSCH. Thus, the method of the present invention solves the problems in the prior art of how to determine the parameter K related to the HARQ (Hybrid Automatic Repeat reQuest) scheduling process when scheduling a high-frequency carrier on a low-frequency carrier, how to trigger the aperiodic CSI-RS report for channel measurement, and how to notify the UE of the number of time slots related to multi-time slot scheduling.

[0167] The seventh embodiment

[0168] The seventh embodiment of the present invention proposes a high-low frequency cross-carrier scheduling device, which is applied to the base station side. The device includes:

[0169] An information sending module, configured to send scheduling information corresponding to a service to a terminal UE through a low-frequency carrier. After the UE receives the scheduling information, the base station sends service data corresponding to the scheduling information to the UE through a high-frequency carrier.

[0170] An information receiving module, configured to receive response information fed back by the UE according to the service data through a low-frequency carrier.

[0171] Through this device, it is possible to notify the UE of the scheduling information carried on the high-frequency carrier according to different service requirements, effectively overcome the problem of limited coverage of the uplink high-frequency band carrier, and at the same time utilize the advantage of high peak throughput brought by the large bandwidth of the downlink high-frequency band carrier. By carrying the control signaling on the low-frequency band, higher system stability can be achieved.

[0172] In an optional embodiment of the present invention, as Figure 6 shown, the device may further include: a configuration module, configured to configure the base station according to the service type;

[0173] A data processing module, configured to calculate scheduling information of the high-frequency carrier based on scheduling parameters of the low-frequency carrier according to service requirements.

[0174] Optionally, when the service requirement is carrier scheduling, the scheduling information includes:

[0175] Physical downlink shared channel PDSCH service parameters of the high-frequency carrier, QCL relationship of the PDSCH service, and parameters for the terminal to feedback hybrid automatic repeat feedback HARQ-ACK;

[0176] Specifically, when carrier scheduling, the base station uses the physical downlink control channel (PDCCH) system information block (DCI) information on the low-frequency carrier to indicate to the UE the time slot for the physical downlink shared channel (PDSCH) service carried on the high-frequency carrier, the quasi-co-location (QCL) relationship for the UE to receive the PDSCH, and the time slot for feedback of hybrid automatic repeat request (HARQ)-ACK on the low-frequency carrier.

[0177] Optionally, the high-frequency carrier PDSCH service parameters include: the time slot parameter at which the high-frequency carrier PDSCH service upload starts;

[0178] The time slot parameter at which the high-frequency carrier PDSCH service upload starts is determined according to the subcarrier spacing of the high-frequency carrier.

[0179] Specifically, when carrier scheduling, the time slot parameter K0 at which the PDSCH service starts configured by the radio resource control (RRC) parameter is in units of the time slots of the high-frequency carrier, and takes values of 0, 1, 2,... etc.; the base station notifies the UE in the DCI of the number of time slots scheduled by a DCI on the high-frequency carrier, and the length of this number of time slots is referenced by the subcarrier spacing of the high-frequency carrier.

[0180] The parameters for the terminal to feedback HARQ-ACK include the feedback time interval parameter of HARQ-ACK, and the feedback time interval parameter is determined according to the subcarrier spacing of the low-frequency carrier.

[0181] When carrier scheduling, the value of K1 indicated by the HARQ-ACK feedback field in the PDCCH DCI is in units of the time slots of the low-frequency carrier, and takes values of 0, 1, 2,... etc.

[0182] The QCL relationship of the PDSCH service includes the high-frequency carrier ID and the high-frequency carrier reference signal.

[0183] When carrier scheduling, the QCL relationship in the transmission configuration indicator (TCI)-state indicated by the TCI field in the PDCCH DCI uses the ID and reference signal of the high-frequency carrier to fill in the synchronization signal block (SSB) and channel state information reference signal (CSI-RS) resource indexes on the high-frequency carrier.

[0184] By adopting the above scheduling information, through the method of cross-carrier scheduling between the low-frequency band carrier CC1 and the high-frequency band carrier CC2, a method for determining the HARQ process K0 and K1 parameters of the base station and a method for notifying the multi-time slot simultaneous scheduling time slot parameters are given, solving the technical problem of how to determine the parameter K related to the HARQ (Hybrid Automatic Repeat reQuest) scheduling process of the low-frequency carrier scheduling the high-frequency carrier in the prior art.

[0185] Optionally, the data processing module is configured to, when the service requirement is carrier scheduling, calculate the time slot position at which the high-frequency carrier PDSCH service upload starts based on the time slot of the low-frequency carrier scheduling system information block DCI; determine the scheduling time slot length according to the time slot position at which the high-frequency carrier PDSCH service upload starts and the sub-carrier spacing of the high-frequency carrier.

[0186] Specifically, in this embodiment, the data processing module calculates the position where the time slot for allocating the PDSCH service on the high-frequency carrier CC2 starts. Where n is the time slot of the low-frequency carrier CC1 scheduling DCI, and the base station determines the time slot length △n of this scheduling, and △n is referenced by the sub-carrier spacing of the high-frequency carrier CC2.

[0187] The information sending module is configured to notify the UE of the control signaling of the PDCCH including the scheduling time slot length through the DCI of the low-frequency carrier.

[0188] Specifically, the information sending module notifies the UE of the time slot length △n (value range time slots) of the high-frequency carrier CC2 scheduling in the DCI of the low-frequency carrier CC1.

[0189] Optionally, the information sending module is further configured to:

[0190] Specifically, the information sending module sends the PDSCH service to the UE according to the scheduling time slot length and the time slot position at which the high-frequency carrier PDSCH service upload starts.

[0191] Eighth Embodiment

[0192] The eighth embodiment of the present invention proposes a high-low frequency cross-carrier scheduling device. Different from the seventh embodiment, in this embodiment, the service is the case of reporting an aperiodic channel state information CSI report.

[0193] In this embodiment, the scheduling information includes: the resource position of the channel state information reference signal CSI-RS in the high-frequency time slot and the QCL relationship for receiving the CSI-RS.

[0194] Specifically, when reporting an aperiodic CSI report, the base station indicates the resource position of the CSI-RS (Channel State Information-Reference Signal) in the high-frequency time slot and the QCL relationship for receiving the CSI-RS to the UE through the PDCCH DCI information on the low-frequency carrier.

[0195] When reporting an aperiodic CSI report, the base station can configure the UE to receive a list of TCI-states for CSI-RS beam directions through RRC signaling, or can also indicate the specific beam direction for the UE to receive CSI-RS through the CSI request field in the mapped DCI by means of a MAC CE command.

[0196] Optionally, the data processing module is configured to, when the service requirement is to report an aperiodic channel state information (CSI) report, calculate the position of the CSI reference signal (CSI-RS) time slot based on the time slot of the downlink control information (DCI) of the low-frequency carrier scheduling system information block and the high-layer parameters.

[0197] The data processing module calculates the position of the CSI-RS time slot allocated on the high-frequency carrier CC2 where n is the time slot of the DCI scheduled by the low-frequency carrier CC1, and X is configured by the high-layer parameter aperiodicTriggeringOffset.

[0198] Optionally, the information sending module is further configured to: send CSI-RS to the UE according to the position of the CSI-RS time slot.

[0199] Specifically, the information sending module starts to send CSI-RS at the time slot position of the carrier CC2 and starts to send CSI-RS.

[0200] The Ninth Embodiment

[0201] The ninth embodiment of the present invention provides a high-low frequency cross-carrier scheduling device applied to the terminal side, including:

[0202] A data receiving module, configured to receive scheduling information corresponding to a service sent by a base station through a low-frequency carrier, and after receiving the scheduling information, receive service data corresponding to the scheduling information sent by the base station through a high-frequency carrier according to the scheduling information.

[0203] A data processing module, configured to perform a service response according to the service data and feedback response information to the base station through the low-frequency carrier.

[0204] The Tenth Embodiment

[0205] The tenth embodiment of the present invention provides a base station, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, where when the computer program is executed by the processor, the steps of the scheduling method in the first embodiment or the fourth embodiment are implemented.

[0206] The Eleventh Embodiment

[0207] The eleventh embodiment of the present invention provides a terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor. When the computer program is executed by the processor, it implements the steps of the scheduling method in the second embodiment or the fifth embodiment.

[0208] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0209] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0210] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0211] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the present invention and the claims. All of these are within the protection scope of the present invention.

Claims

1. A high-low frequency cross-carrier scheduling method, characterized in that Applied to the base station side, the method includes the following steps: The base station sends scheduling information corresponding to the service to the terminal UE through a low-frequency carrier; After the UE receives the scheduling information, the base station sends service data corresponding to the scheduling information to the UE through a high-frequency carrier; The base station receives, through the low-frequency carrier, response information fed back by the UE according to the service data; When the service is carrier scheduling, the scheduling information sent by the base station to the terminal through the low-frequency carrier includes: physical downlink shared channel PDSCH service parameters of the high-frequency carrier, quasi-position QCL relationship of the PDSCH service, and parameters for the terminal to feedback hybrid automatic repeat request feedback HARQ; the PDSCH service parameters include time slot parameters at which the PDSCH service starts, where the time slot parameters at which the PDSCH service starts are determined according to the subcarrier spacing of the high-frequency carrier; the parameters for the terminal to feedback HARQ include the feedback time slot for the terminal to feedback HARQ-ACK, where the feedback time slot is determined according to the subcarrier spacing of the low-frequency carrier; the QCL relationship of the PDSCH service includes the high-frequency carrier ID and the high-frequency carrier reference signal.

2. The method according to claim 1, wherein Before the base station sends scheduling information corresponding to the service to the terminal through the low-frequency carrier, the method further includes: The base station calculates the time slot position at which the PDSCH service starts according to the scheduling information of the low-frequency carrier; Determine the scheduling time slot length according to the time slot position at which the PDSCH service starts and the subcarrier spacing of the high-frequency carrier.

3. The method according to claim 2, characterized in that The base station sending scheduling information corresponding to the service to the UE through the low-frequency carrier includes: The base station notifies the terminal, through the downlink control information DCI of the low-frequency carrier, of the physical downlink control channel PDCCH control signaling including the time slot position and the time slot length.

4. The method according to claim 3, wherein The base station sending service data corresponding to the scheduling information to the UE through the high-frequency carrier includes: The base station sends PDSCH service data to the terminal through the high-frequency carrier according to the time slot position and the time slot length.

5. The method according to claim 1, characterized in that, The base station receiving, through the low-frequency carrier, response information fed back by the UE according to the service data includes: The base station receives, through the low-frequency carrier, HARQ response information fed back by the UE based on the service data according to the feedback time slot.

6. The method according to claim 1, wherein When the service is reporting an aperiodic channel state information CSI report, the scheduling information sent by the base station to the terminal through the low-frequency carrier includes: The resource position of the channel state information reference signal CSI-RS resource in the high-frequency time slot and the QCL relationship for receiving the CSI-RS.

7. The method according to claim 6, characterized in that, Before the base station sends scheduling information corresponding to the service to the terminal through the low-frequency carrier, the method further includes: The base station calculates the position of the CSI-RS time slot based on the time slot of the downlink control information DCI of the low-frequency carrier scheduling system information block and the high-layer parameters.

8. The method according to claim 7, wherein The base station sending service data corresponding to the scheduling information to the UE through the high-frequency carrier includes: the base station sends CSI-RS resources to the UE through the high-frequency carrier according to the position of the CSI-RS time slot.

9. The method according to claim 8, characterized in that, The base station receives, via a low-frequency carrier, the response information fed back by the UE according to the service data, including: the base station receives, via a low-frequency carrier, the CSI measurement report reported by the UE on the PUCCH or PUSCH via the low-frequency carrier.

10. The method according to claim 1 or 6, characterized in that The base station sends, via a low-frequency carrier, scheduling information corresponding to a service to the UE, further including: The base station notifies, via a low-frequency carrier RRC signaling or a MAC control element (MAC-CE), the UE of the beam direction for receiving the physical downlink control channel (PDCCH) service.

11. A high-low frequency cross-carrier scheduling method, characterized in that, Applied to the terminal side, the method includes: Receiving the scheduling information corresponding to the service sent by the base station via a low-frequency carrier; After receiving the scheduling information, receiving, according to the scheduling information, the service data corresponding to the scheduling information sent by the base station via a high-frequency carrier; Performing a service response according to the service data and feeding back response information to the base station via a low-frequency carrier; In the case where the service is carrier scheduling, the scheduling information sent by the base station via a low-frequency carrier includes: physical downlink shared channel (PDSCH) service parameters of the high-frequency carrier, the quasi-co-location (QCL) relationship of the PDSCH service, and parameters for the terminal to feedback hybrid automatic repeat request (HARQ); the PDSCH service parameters include the time slot parameters at which the PDSCH service starts, where the time slot parameters at which the PDSCH service starts are determined according to the subcarrier spacing of the high-frequency carrier; the parameters for the terminal to feedback HARQ include the feedback time slot for the terminal to feedback HARQ-ACK, where the feedback time slot is determined according to the subcarrier spacing of the low-frequency carrier; the QCL relationship of the PDSCH service includes the high-frequency carrier ID and the high-frequency carrier reference signal.

12. The method according to claim 11, wherein Receiving the scheduling information corresponding to the service sent by the base station via a low-frequency carrier includes: receiving the PDCCH service carrying the scheduling information in the beam direction indicated by the base station via a low-frequency carrier RRC signaling or a MAC-CE.

13. The method according to claim 12, wherein In the case where the service is carrier scheduling, performing a service response according to the service data and feeding back response information to the base station via a low-frequency carrier includes: Receiving and decoding the PDSCH service sent by the base station via a high-frequency carrier; According to the decoding result, feeding back HARQ response information at the feedback time indication according to the service data via a low-frequency carrier.

14. The method according to claim 12, wherein In the case where the service is reporting an aperiodic channel state information (CSI) report, performing a service response according to the service data and feeding back response information to the base station via a low-frequency carrier includes: Receiving the CSI-RS signal sent by the base station and performing measurements according to the CSI-RS signal; After the measurement is completed, reporting the CSI measurement report on the PUCCH or PUSCH via a low-frequency carrier.

15. A high-low frequency cross-carrier scheduling device, characterized in that The apparatus applied to the base station side includes: An information sending module, configured to send, via a low-frequency carrier, scheduling information corresponding to a service to the terminal UE. After the UE receives the scheduling information, the base station sends the service data corresponding to the scheduling information to the UE via a high-frequency carrier; An information receiving module, configured to receive, via a low-frequency carrier, response information fed back by the UE according to the service data; In the case where the service is carrier scheduling, the scheduling information sent by the base station to the terminal via a low-frequency carrier includes: physical downlink shared channel PDSCH service parameters of a high-frequency carrier, quasi-position QCL relationships of the PDSCH service, and parameters for the terminal to feedback hybrid automatic repeat request feedback HARQ; the PDSCH service parameters include slot parameters at which the PDSCH service starts, where the slot parameters at which the PDSCH service starts are determined according to the subcarrier spacing of the high-frequency carrier; the parameters for the terminal to feedback HARQ include the feedback slot for the terminal to feedback HARQ-ACK, where the feedback slot is determined according to the subcarrier spacing of the low-frequency carrier; the QCL relationship of the PDSCH service includes a high-frequency carrier ID and a high-frequency carrier reference signal.

16. A high-low frequency cross-carrier scheduling device, characterized in that, The apparatus applied to the terminal side includes: A data receiving module, configured to receive scheduling information corresponding to a service sent by the base station via a low-frequency carrier, and after the scheduling information is received, receive service data corresponding to the scheduling information sent by the base station via a high-frequency carrier according to the scheduling information; A data processing module, configured to perform a service response according to the service data, and feedback response information to the base station via a low-frequency carrier; In the case where the service is carrier scheduling, the scheduling information sent by the base station via a low-frequency carrier includes: physical downlink shared channel PDSCH service parameters of a high-frequency carrier, quasi-position QCL relationships of the PDSCH service, and parameters for the terminal to feedback hybrid automatic repeat request feedback HARQ; the PDSCH service parameters include slot parameters at which the PDSCH service starts, where the slot parameters at which the PDSCH service starts are determined according to the subcarrier spacing of the high-frequency carrier; the parameters for the terminal to feedback HARQ include the feedback slot for the terminal to feedback HARQ-ACK, where the feedback slot is determined according to the subcarrier spacing of the low-frequency carrier; the QCL relationship of the PDSCH service includes a high-frequency carrier ID and a high-frequency carrier reference signal.

17. A base station, characterized in that, It includes: A memory, a processor, and a computer program stored on the memory and executable on the processor, where when the computer program is executed by the processor, the steps of the scheduling method according to any one of claims 1 to 10 are implemented.

18. A terminal, characterized in that, It includes: A memory, a processor, and a computer program stored on the memory and executable on the processor, where when the computer program is executed by the processor, the steps of the scheduling method according to any one of claims 11 to 14 are implemented.

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