WO2018228500A1 - Method and apparatus for transmitting scheduling information - Google Patents

Abstract

Disclosed are a method and apparatus for transmitting scheduling information. In the present application, a network device determines the amount of scheduling information about a terminal, and uses the scheduling frequency resource to send the scheduling information according to the determined amount of scheduling information, wherein the scheduling information is located at a physical downlink control channel for indicating a data channel resource of a scheduled frequency resource on the scheduling frequency resource; the scheduling information is DCI or an information domain in the DCI; and the amount of scheduling information is less or equal to the maximum value of the amount of scheduling information, or is determined according to the time domain unit length of the scheduled frequency resource and the time domain unit length of the scheduling frequency resource, or is determined according to a sub-carrier interval of the scheduled frequency resource, a sub-carrier interval of the scheduling frequency resource, and a first pre-set value, or is determined according to the time unit length of the scheduled frequency resource and the time unit length of the scheduling frequency resource and the first pre-set value, and the first pre-set value is used for determining the amount of the maximal time domain unit which may be scheduled by the scheduling information. According to the present application, it is expected that the complexity of the scheduling of a frequency resource can be reduced.

Description

Scheduling information transmission method and device

The present application claims the priority of the Chinese Patent Application, which is filed on June 16, 2017, the Chinese Patent Application No. PCT Application No. in.

Technical field

The present application relates to the field of wireless communications technologies, and in particular, to a scheduling information transmission method and apparatus.

Background technique

The growing number of intelligent terminal users, the increasing volume of user traffic and data throughput have placed higher demands on communication bandwidth and speed. To this end, Carrier Aggregation (CA) technology has been introduced. A plurality of consecutive or discontinuous component carriers can be aggregated by carrier aggregation, and the 5th Generation mobile communication technology New Radio (5G NR) system also defines other frequency resources, such as Part bandwidth (Bandwidth Part, BP) solves the demand for large bandwidth of mobile communication and improves the utilization of scattered spectrum in the wireless frequency band. The carrier aggregation technology of the Long Term Evolution (LTE) system supports cross-carrier scheduling. Cross-carrier scheduling refers to scheduling data channel resources of additional component carriers on one component carrier.

The 5G system needs to support more services and richer spectrum resources, so carrier aggregation and cross-carrier scheduling technology will continue to be adopted, and due to the introduction of BP, cross-BP scheduling and feedback will also be supported. However, in the LTE system, the subcarrier spacing is fixed. In the 5G system, considering that the wireless transmission characteristics of the high frequency band and the wireless transmission characteristics of the low frequency band are largely different, the subcarrier spacing may be different in different frequency bands. For example, the subcarrier spacing on the low frequency band is 15 khz, and the subcarrier spacing on the high frequency band is 60 khz. Even within the same frequency band, the subcarrier spacing on different carriers may be different.

Because the sub-carrier spacing is no longer fixed in the 5G system, the cross-carrier or cross-BP scheduling scenarios are more and the complexity is higher.

Summary of the invention

The embodiment of the present application provides a scheduling information transmission method and apparatus, so as to reduce the complexity of frequency scheduling.

In a first aspect, a scheduling information transmission method is provided, including:

The network device determines the number of scheduling information of the terminal, and uses the scheduling frequency resource to send scheduling information according to the determined number of scheduling information. The scheduling information is located on the physical downlink control channel, and is used to indicate a data channel resource of the scheduled frequency resource on the scheduling frequency resource, where the scheduling information is an information domain in the downlink control information DCI or DCI, where the scheduling information is The quantity is less than or equal to the maximum number of scheduling information, and the maximum number of scheduling information is determined according to the subcarrier spacing of the scheduled frequency resource and the subcarrier spacing of the scheduling frequency resource, or the length of the time domain unit according to the scheduled frequency resource. And determining the time domain unit length of the scheduling frequency resource, or determining according to the subcarrier spacing of the scheduled frequency resource, the subcarrier spacing of the scheduling frequency resource, and the first preset value, or the time unit according to the scheduled frequency resource. The length of the time unit of the length and the scheduling frequency resource and the first preset value are determined, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.

In the above solution, the determination of the maximum value of the number of scheduling information is given, and the number of scheduling information sent by the network device is less than or equal to the maximum number of the scheduling information, and therefore the number of scheduling information sent to the network device. Limitations have been made to simplify the standardization and complexity of the implementation. The solution is applicable to the cross-frequency resource scheduling, and is further applicable to the case where the scheduling frequency resource and the sub-carrier spacing of the scheduled frequency resource are different in the cross-frequency resource scheduling scenario, that is, the scheduling in the cross-frequency resource scheduling scenario in this embodiment of the present application The case where the frequency resource and the subcarrier spacing of the scheduled frequency resource are different can simplify the standardization of the protocol and the complexity of the implementation.

In one possible design, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units, the number of the one or more time domain units being less than or equal to the first The number of maximum time domain units that can be scheduled by the scheduling information indicated by the preset value. In this way, the number of time domain units scheduled by the scheduling information sent by the network device does not exceed the maximum number of time domain units that the terminal can schedule, so that the data transmission of the terminal can be guaranteed.

In one possible design, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; the scheduling information indicates data of scheduled frequency resources in multiple time domain units In the case of the channel resource, the scheduled frequency resource in each time domain unit independently carries the transport block, or the scheduled frequency resource in all or part of the time domain unit jointly bears the transport block.

With this scheme, when the network device schedules transmission of multiple time domain units (such as a subframe or a time slot), each of the multiple time domain units may correspond to one transport block, or more At least two time domain units in the time domain unit correspond to one transport block, which can improve scheduling flexibility and extend the existing protocol.

In a possible design, when the scheduling information is DCI, the DCI sent by the network device includes a first information field, where the first information field is used to indicate the number of DCIs sent by the network device, or And indicating whether the number of DCIs sent by the network device is one or more.

With this solution, the network device can indicate the number of DCIs it sends to the terminal, so that the terminal can receive the DCI according to the number of DCIs indicated by the network device, for example, when the number of DCIs received by the terminal is indicated by the network device. When the number of DCIs is equal, the DCI can be stopped (for example, the DCI is stopped in the PDCCH search space), thereby saving the processing overhead of the terminal, thereby saving power consumption of the terminal. The network device can also indicate whether the number of DCIs sent by the terminal is one or more to the terminal, so that the terminal can receive the DCI according to the indication. For example, when the terminal determines, according to the indication, that the network device only sends one DCI, the terminal can stop searching after searching for the DCI sent to the terminal in the PDCCH search space, thereby saving processing overhead of the terminal, thereby saving power of the terminal. Consumption.

In a possible design, when the scheduling information is an information domain in a DCI, an information field is used to indicate a data channel resource of a scheduled frequency resource in a time domain unit; and an information field includes a first indication information. The time domain unit aggregation indication information in an information domain is used to indicate whether the scheduled frequency resource is a bearer transport block independently on the time domain unit or a transport transport block in conjunction with the scheduled frequency resource in other time domain units.

With the scheme, when the frequency resource scheduling is performed by using one DCI, the network device may indicate, by using the first indication information in the DCI, whether the scheduled frequency resource is independently carrying the transport block on the time domain unit, or is in other time domain units. The scheduled frequency resource jointly carries the transport block, so that the terminal can perform data transmission according to the indication.

In one possible design, the maximum number of scheduling information is determined according to the following manner, including:

Determining a first ratio, if the first ratio is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the first ratio, if the first ratio is greater than 1 and greater than or equal to a first set value, the maximum value of the number of scheduling information is equal to the first set value, and if the first ratio is less than or equal to 1, the maximum value of the number of scheduling information is equal to 1, wherein The first set value is specified by the protocol or the system configuration; or,

Determining a first ratio, if the first ratio is greater than 1, the maximum value of the scheduling information is equal to the first ratio, and if the first ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1; or,

Determining a product of the first ratio and the second set value. If the product is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the product, if the product is greater than 1 and greater than or equal to The first set value, the maximum value of the scheduling information is equal to the first set value, and if the product is less than or equal to 1, the maximum value of the scheduling information is equal to 1, wherein Said first set value and said second set value are specified by agreement or system configuration; or

Determining a second ratio, if the second ratio is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the second ratio, if the second ratio is greater than 1 and greater than or equal to a first set value, the maximum value of the number of scheduling information is equal to the first set value, and if the second ratio is less than or equal to 1, the maximum value of the number of scheduling information is equal to 1, wherein The first set value is specified by the protocol or the system configuration; or,

Determining a second ratio. If the second ratio is greater than 1, the maximum value of the scheduling information is equal to the second ratio. If the second ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1;

The first ratio is equal to a ratio of a subcarrier spacing of the scheduled frequency resource divided by a subcarrier spacing of the scheduling frequency resource, and is further divided by the first preset value, or the first ratio is equal to the scheduled frequency. The ratio of the time domain unit length of the resource divided by the time domain unit length of the scheduling frequency resource is further divided by the first preset value; the second ratio is equal to the first ratio equal to the scheduled The ratio of the subcarrier spacing of the frequency resource divided by the subcarrier spacing of the scheduling frequency resource, or the ratio of the second ratio equal to the time domain unit length of the scheduled frequency resource divided by the time domain unit length of the scheduling frequency resource Approximate integer.

The above solution gives several methods for determining the maximum number of possible scheduling information, and the technical implementation is simple, so that the protocol standardization and the complexity of implementation can be simplified for the frequency resource scheduling scenario.

In a second aspect, a scheduling information transmission method is provided, including:

The terminal determines the number of scheduling information, and receives scheduling information on the scheduling frequency resource according to the determined number of scheduling information. The scheduling information is located on the physical downlink control channel, and is used to indicate a data channel resource of the scheduled frequency resource on the scheduling frequency resource, where the scheduling information is an information domain in the downlink control information DCI or DCI, where the scheduling information is The quantity is less than or equal to the maximum number of scheduling information, and the maximum number of scheduling information is determined according to the subcarrier spacing of the scheduled frequency resource and the subcarrier spacing of the scheduling frequency resource, or the length of the time domain unit according to the scheduled frequency resource. And determining the time domain unit length of the scheduling frequency resource, or determining according to the subcarrier spacing of the scheduled frequency resource, the subcarrier spacing of the scheduling frequency resource, and the first preset value, or the time unit according to the scheduled frequency resource. The length of the time unit of the length and the scheduling frequency resource and the first preset value are determined, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.

In one possible design, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units, the number of the one or more time domain units being less than or equal to the number The number of maximum time domain units that can be scheduled by the scheduling information indicated by a preset value.

In one possible design, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; the scheduling information indicates scheduled frequency resources in multiple time domain units In the case of the data channel resource, the scheduled frequency resource in each time domain unit independently carries the transport block, or the scheduled frequency resource in all or part of the time domain unit jointly bears the transport block.

In a possible design, when the scheduling information is DCI, the DCI sent by the network device includes a first information domain, where the first information domain is used to indicate the number of DCIs sent by the network device; And receiving, by the terminal, the scheduling information on the scheduling frequency resource according to the determined number of scheduling information, including: if the terminal determines, according to the first information field in the received DCI, that the number of received DCI is equal to the first If the number of DCIs indicated by an information field stops receiving DCI sent by the network device; or

When the scheduling information is DCI, the DCI sent by the network device includes a first information field, where the first information field is used to indicate whether the number of DCIs sent by the network device is one or more; Receiving the scheduling information on the scheduling frequency resource, if the determining, according to the first information field in the received DCI, determining that the number of DCIs sent by the network device is one, stopping receiving The DCI sent by the network device.

In a possible design, when the scheduling information is an information domain in a DCI, an information field is used to indicate a data channel resource of a scheduled frequency resource in a time domain unit; and an information field includes a first indication information. The first indication information in an information field is used to indicate whether the scheduled frequency resource is a bearer transport block independently on the time domain unit or a transport transport block in conjunction with the scheduled frequency resource in other time domain units.

In one possible design, the maximum number of scheduling information is determined according to the following manner, including:

Determining a first ratio, if the first ratio is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the first ratio, if the first ratio is greater than 1 and greater than or equal to a first set value, the maximum value of the number of scheduling information is equal to the first set value, and if the first ratio is less than or equal to 1, the maximum value of the number of scheduling information is equal to 1, wherein The first set value is specified by the protocol or the system configuration; or,

Determining a first ratio, if the first ratio is greater than 1, the maximum value of the scheduling information is equal to the first ratio, and if the first ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1; or,

Determining a product of the first ratio and the second set value. If the product is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the product, if the product is greater than 1 and greater than or equal to The first set value, the maximum value of the scheduling information is equal to the first set value, and if the product is less than or equal to 1, the maximum value of the scheduling information is equal to 1, wherein Said first set value and said second set value are specified by agreement or system configuration; or

Determining a second ratio, if the second ratio is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the second ratio, if the second ratio is greater than 1 and greater than or equal to a first set value, the maximum value of the number of scheduling information is equal to the first set value, and if the second ratio is less than or equal to 1, the maximum value of the number of scheduling information is equal to 1, wherein The first set value is specified by the protocol or the system configuration; or,

Determining a second ratio. If the second ratio is greater than 1, the maximum value of the scheduling information is equal to the second ratio. If the second ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1;

The first ratio is equal to a ratio of a subcarrier spacing of the scheduled frequency resource divided by a subcarrier spacing of the scheduling frequency resource, and is further divided by the first preset value, or the first ratio is equal to the scheduled frequency. The ratio of the time domain unit length of the resource divided by the time domain unit length of the scheduling frequency resource is further divided by the first preset value; the second ratio is equal to the first ratio equal to the scheduled The ratio of the subcarrier spacing of the frequency resource divided by the subcarrier spacing of the scheduling frequency resource, or the ratio of the second ratio equal to the time domain unit length of the scheduled frequency resource divided by the time domain unit length of the scheduling frequency resource Approximate integer.

In a third aspect, a scheduling information transmission method is provided, including:

The network device determines the number of downlink control information DCI in one search space of the terminal; the network device sends the number of the DCI to the terminal, or sends indication information, where the indication information is used to indicate DCI in the one search space The number is one or more.

In the above solution, the network device may determine the number of DCIs in one search space of the terminal, and send related information about the determined number of DCIs to the terminal, so that the terminal may perform DCI reception according to the indication. For example, in a case where the network device sends the number of DCIs to the terminal, when the number of DCIs received by the terminal is equal to the number of the DCIs sent by the network device, the search for DCI in the search space may be stopped, so that The processing overhead of the terminal is saved, and the power consumption of the terminal can be saved. For another example, when the network device sends the indication information to the terminal, and the indication information indicates that the number of DCIs in the one search space is one, the terminal stops searching after searching for the DCI sent to the terminal in the PDCCH search space. Therefore, the processing overhead of the terminal can be saved, thereby saving power consumption of the terminal.

In a possible design, the number of DCIs in a search space determined by the network device is a DCI in the search space for indicating a data channel resource of the scheduled frequency resource on the scheduling frequency resource, that is, DCI for cross-frequency resource scheduling. Further, in the cross-frequency resource scheduling scenario, the sub-carrier spacing of the scheduling frequency resource and the scheduled frequency resource may be different.

The foregoing solution is for a cross-frequency resource scheduling scenario, and the network device sends related information about the number of DCIs for cross-frequency resource scheduling to the terminal, so that the terminal can perform DCI reception according to the indication.

In a possible design, the DCI includes a first information field, where the first information field is used to indicate the number of DCIs sent by the network device, or is used to indicate that the number of DCIs in the one search space is One or more.

In one possible design, the DCI is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units, and the number of the one or more time domain units is less than or equal to a first preset value. The indicated maximum number of time domain units that the DCI can schedule, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.

In one possible design, the DCI is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; the DCI indicates data channel resources of scheduled frequency resources in multiple time domain units In the multiple time domain units, the scheduled frequency resources in each time domain unit independently carry the transport block, or the scheduled frequency resources in all or part of the time domain unit jointly bear the transport block.

A fourth aspect provides a scheduling information transmission method, including:

The terminal receives the number or indication information of the DCI sent by the network device, and receives the DCI in the one search space according to the number of the DCI or the indication information. The indication information is used to indicate whether the number of DCIs in the one search space is one or more.

In a possible design, the DCI includes a first information field, where the first information field is used to indicate the number of DCIs sent by the network device, and the terminal is configured according to the number of DCIs or indication information. Receiving the DCI in the one search space includes: if the terminal determines, according to the first information field in the received DCI, that the number of received DCIs is equal to the number of DCIs indicated by the first information domain, stopping at the location Representing a DCI in a search space; or,

The DCI includes a first information field, where the first information field is used to indicate whether the number of DCIs in the one search space is one or more; and the terminal is used according to the number of DCIs or indication information. Receiving the DCI in a search space includes: if the terminal determines, according to the first information field in the received DCI, that the number of DCIs sent by the network device is one, stopping receiving DCI in the one search space.

In one possible design, the DCI is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units, and the number of the one or more time domain units is less than or equal to a first preset value. The indicated maximum number of time domain units that the DCI can schedule, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.

In one possible design, the DCI is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; the DCI indicates data channel resources of scheduled frequency resources in multiple time domain units In the multiple time domain units, the scheduled frequency resources in each time domain unit independently carry the transport block, or the scheduled frequency resources in all or part of the time domain unit jointly bear the transport block.

In a fifth aspect, there is provided a scheduling information transmission apparatus for a network device, the apparatus having the function of implementing the network device in any one of the above first aspect or the first aspect. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the structure of the device includes a determining module and a sending module, and the modules may perform the corresponding functions in the above first aspect or any one of the possible aspects of the first aspect, as detailed in the method example. Description, no further description here.

In one possible design, the apparatus includes a communication interface, a processor, and a memory, the communication interface for transmitting and receiving data, the processor being configured to support the processing device to perform the first aspect or the first The corresponding function in any possible design on the one hand. The memory is coupled to the processor, which stores program instructions and data necessary for the processor.

According to a sixth aspect, there is provided a scheduling information transmission apparatus for a terminal having a function of implementing a terminal in any one of the above second aspect or the second aspect. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the structure of the device includes a determining module and a receiving module, and the modules may perform corresponding functions in any one of the possible aspects of the second aspect or the second aspect, as described in detail in the method example. I will not repeat them here.

In one possible design, the apparatus includes a communication interface, a processor, and a memory, the communication interface is configured to transmit and receive data, and the processor is configured to support the processing device to perform the second aspect or the foregoing The corresponding function in any of the possible designs of the two aspects. The memory is coupled to the processor, which stores program instructions and data necessary for the processor.

According to a seventh aspect, there is provided a scheduling information transmission apparatus for a network device, the apparatus having the function of implementing the network device in any one of the above-mentioned third aspect or the third aspect. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the structure of the device includes a determining module and a sending module, and the modules may perform corresponding functions in any one of the above possible aspects of the third aspect or the third aspect. For details, refer to the details in the method example. Description, no further description here.

In one possible design, the apparatus includes a communication interface, a processor, and a memory, the communication interface is configured to transmit and receive data, and the processor is configured to support the processing device to perform the third aspect or the foregoing The corresponding function in any of the three possible designs. The memory is coupled to the processor, which stores program instructions and data necessary for the processor.

According to an eighth aspect, there is provided a scheduling information transmission apparatus for a terminal having a function of implementing a terminal in any one of the possible aspects of the fourth aspect or the fourth aspect described above. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the structure of the device includes a first receiving module and a second receiving module, and the modules may perform corresponding functions in any one of the possible designs of the fourth aspect or the fourth aspect, as described in the method example. The detailed description is not repeated here.

In a possible design, the apparatus includes a communication interface, a processor, and a memory, the communication interface is configured to transmit and receive data, and the processor is configured to support the processing device to perform the fourth aspect or the foregoing The corresponding function in any of the four possible designs. The memory is coupled to the processor, which stores program instructions and data necessary for the processor.

A ninth aspect, a computer readable storage medium for storing computer software instructions for performing the functions designed to perform any of the above aspects and any of the aspects, comprising And a program designed by any of the methods of any of the aspects.

In a tenth aspect, a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of any of the above aspects.

DRAWINGS

1 is a schematic diagram of a possible communication scenario in an embodiment of the present application;

2 is a schematic diagram of cross-carrier scheduling and cross-carrier scheduling not used in the embodiment of the present application;

3 is a schematic diagram of a cross-carrier scheduling scenario in an embodiment of the present application;

4A and 4B are schematic diagrams showing different subcarrier spacings of a scheduling carrier and a scheduled carrier in cross-carrier scheduling according to an embodiment of the present application;

FIG. 5 is a schematic flowchart of a scheduling information transmission performed by a network device according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a mapping relationship between a subframe and a transport block when performing multi-subframe joint scheduling by using multiple DCIs according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a mapping relationship between a time slot and a transport block when performing multi-slot joint scheduling by using multiple information fields in the DCI according to an embodiment of the present disclosure;

FIG. 8 is a schematic flowchart of a scheduling information transmission performed by a terminal according to an embodiment of the present disclosure;

FIG. 9 is a schematic flowchart of a scheduling information transmission performed by a network device side according to another embodiment of the present disclosure;

FIG. 10 is a flowchart of scheduling information transmission performed by a terminal side according to another embodiment of the present application;

FIG. 11 is a schematic structural diagram of a scheduling information transmission apparatus according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a scheduling information transmission apparatus according to another embodiment of the present application;

FIG. 13 is a schematic structural diagram of a scheduling information transmission apparatus according to another embodiment of the present application;

FIG. 14 is a schematic structural diagram of a scheduling information transmission apparatus according to another embodiment of the present application;

FIG. 15 is a schematic structural diagram of a scheduling information transmission apparatus according to another embodiment of the present application;

16 is a schematic structural diagram of a scheduling information transmission apparatus according to another embodiment of the present application;

FIG. 17 is a schematic structural diagram of a scheduling information transmission apparatus according to another embodiment of the present application;

FIG. 18 is a schematic structural diagram of a scheduling information transmission apparatus according to another embodiment of the present application.

detailed description

Hereinafter, some of the terms in the embodiments of the present application will be explained so as to be understood by those skilled in the art.

(1) In the embodiments of the present application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand the meaning thereof.

(2) The term "plurality" in the embodiment of the present application means two or more, and other quantifiers are similar thereto.

(3) "and/or", describing the association relationship of the associated objects, indicating that there may be three kinds of relationships, for example, A and / or B, which may indicate that A exists separately, A and B exist simultaneously, and B exists separately. Happening. The character "/" generally indicates that the contextual object is an "or" relationship.

The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments.

FIG. 1 exemplarily shows a schematic diagram of a possible communication scenario provided by an embodiment of the present application. As shown in FIG. 1, the terminal 110 accesses a wireless network through a radio access network (RAN) node 120 to acquire a service of an external network (such as the Internet) through a wireless network, or communicates with other terminals through a wireless network. .

The terminal is also called a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc., and is a device that provides voice and/or data connectivity to users. For example, a handheld device having a wireless connection function, an in-vehicle device, or the like. Currently, some examples of terminals are: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality. (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart grid Wireless terminals, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and the like.

The RAN is the part of the network that connects the terminal to the wireless network. A RAN node (or device) is a node (or device) in a radio access network, which may also be referred to as a base station. Currently, some examples of RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), and Node B (Node). B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit , BBU), or wireless fidelity (Wifi) access point (AP). In addition, in a network structure, the RAN may include a centralized unit (CU) node and a distributed unit (DU) node. This structure separates the protocol layer of the eNB in the long term evolution (LTE) system, and the functions of some protocol layers are centrally controlled in the CU, and the functions of the remaining part or all of the protocol layers are distributed in the DU by the CU. Centrally control the DU.

The network architecture described in the embodiments of the present application is for the purpose of more clearly illustrating the technical solutions of the embodiments of the present application, and does not constitute a limitation of the technical solutions provided by the embodiments of the present application. As those skilled in the art may understand, with the evolution of the network architecture, The technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

The embodiment of the present application provides a scheduling information transmission method and a device based on the method, where the device includes a network device and a terminal. The network device may be a RAN node or a base station. The method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.

In this embodiment of the present application, the network device determines the number of scheduling information of the terminal, and uses the scheduling frequency resource to send scheduling information to the terminal device according to the determined number of scheduling information. The scheduling information is located on the physical downlink control channel, and is used to indicate the data channel resource of the scheduled frequency resource on the scheduling carrier, and the terminal may acquire the data channel resource of the scheduled frequency resource according to the scheduling information received from the scheduling frequency resource. Data transmission is performed on the scheduling frequency resource.

The frequency resource of the embodiment of the present application is not limited. For example, the frequency resource may be a carrier or a part bandwidth (BP). Taking the frequency resource as a carrier as an example, the scheduling frequency resource is a scheduling carrier, and the scheduled frequency resource is a scheduled carrier. The following embodiments are described by taking the scheduling carrier and the scheduled carrier as an example. It should be understood that the principles of the embodiments of the present application can be applied to other resource scheduling granularities.

The physical downlink control channel may be a PDCCH (Physical Downlink Control Channel), and the data channel may include a Physical Downlink Shared Channe (PDSCH) and/or a Physical Uplink Shared Channel (PUSCH). ).

The scheduling information may be Downlink Control Information (DCI) or an information field in the DCI, where the information field is used to indicate a data channel resource of the scheduled carrier. The information field used in the DCI to indicate the data resources of the scheduled carrier may be one or more (the specific number is determined by the network device), wherein one information domain may schedule one or more hybrid automatic repeat requests (Hybrid Automatic Repeat reQuest) , HARQ process, a HARQ process corresponds to a time domain unit. The DCI is downlink control information that is sent by the network device to the terminal, and may include uplink and downlink resource allocation, HARQ information, power control, etc., and may be carried on the PDCCH. One time domain unit may be a subframe, or a slot, or a mini-slot.

In an example, the CC1 indicates the scheduling carrier, and the CC2 indicates the scheduled carrier. The network device sends the DCI to the terminal through the PDCCH of the CC1. The DCI includes the PDSCH resource indication information on the CC2, and the indication information is used to indicate the allocation to the terminal. The PDCCH time-frequency resource location on CC2 is such that the terminal can receive data transmitted by the network device on the indicated PDCCH on CC2. In another example, the CC1 indicates the scheduling carrier, and the CC2 indicates the scheduled carrier. The network device sends the DCI to the terminal through the PDCCH of the CC1. The DCI includes the PUSCH resource indication information on the CC2, and the indication information is used to indicate the allocation to the terminal. The PUSCH time-frequency resource location on CC2 is such that the terminal can transmit data to the network device on the indicated PUSCH on CC2.

The above scheduling carrier and the scheduled carrier may be the same carrier or different carriers. For example, as shown in FIG. 2, (a) in FIG. 2 shows a schematic diagram in which cross-carrier scheduling is not adopted (that is, the scheduling carrier and the scheduled carrier are the same carrier), and (b) in FIG. 2 shows cross-carrier scheduling. (A schematic diagram of the scheduling carrier and the scheduled carrier being different carriers), it can be seen that, during cross-carrier scheduling, the PDCCH on one carrier can indicate the PDSCH resources on other carriers. In the case that the scheduling carrier and the scheduled carrier are different carriers, the embodiment of the present application provides a scheduling information transmission method to implement cross-carrier scheduling for the scenario of cross-carrier scheduling.

In the example of cross-carrier scheduling shown in FIG. 3, one macro base station cell (corresponding to the macro cell in the figure) and one small base station cell (corresponding to the small cell in the figure) share two downlink bearer carriers: CC1 and CC2. . The two component carriers of the small cell operate at low transmission power, the CC1 of the macro cell operates at high transmission power, and the CC2 operates at low transmission power. The transmission of the macro cell on CC1 interferes with CC1 of the small cell. Therefore, on the small cell, the PDCCH on CC2 is used to schedule PDSCH resources on CC1 across carriers; on the macro cell, the PDCCH on CC1 is used to schedule PDSCH resources on CC2 across carriers.

Further, in a scenario of cross-carrier scheduling, the subcarrier spacing of the scheduling carrier and the subcarrier spacing of the scheduled carrier may be the same or different. In an example where the subcarrier spacing of the scheduling carrier is different from the subcarrier spacing of the scheduled carrier, as shown in FIG. 4A, the scheduling carrier (shown as CC1 in the figure) is located in the high frequency band, and the subcarrier spacing is 15 kHz, and the scheduled carrier is (CC2 shown in the figure) is located in the low frequency band, and the subcarrier spacing is 60 kHz. The network device sends scheduling information through the PDCCH on CC1 to indicate the resources of the PDSCH and/or the PUSCH on the CC2 (such as the time slot where the PDSCH and/or the PUSCH are located). And the location of the frequency domain). In another example, as shown in FIG. 4B, the scheduling carrier (shown as CC1 in the figure) is located in the high frequency band, the subcarrier spacing is 15 kHz, and the scheduled carrier (shown as CC2 in the figure) is located in the low frequency band, and the subcarrier spacing is 30 kHz. The network device sends scheduling information through the PDCCH on the CC1 to indicate the resources of the PDSCH and/or the PUSCH on the CC2 (such as the time slot in which the PDSCH and/or the PUSCH are located and the frequency domain location in which the PUSCH is located).

In this embodiment, the number of scheduling information determined by the network device is less than or equal to the maximum number of scheduling information, and the maximum value of the scheduling information may be determined according to a subcarrier spacing of the scheduled carrier and a subcarrier spacing of the scheduling carrier. Or, according to the subcarrier spacing of the scheduled carrier, the subcarrier spacing of the scheduling carrier, and the first preset value. It can be seen that, because the calculation of the maximum value of the number of scheduling information is given in the embodiment of the present application, and the number of scheduling information sent by the network device is less than or equal to the maximum value of the scheduling information, the network device is sent. The number of scheduling information is limited, especially for the case where the subcarrier spacing of the scheduling carrier and the scheduled carrier is different in the cross-carrier scheduling scenario, which can simplify the standardization of the protocol and the complexity of implementation.

The first preset value is used to indicate the maximum number of time domain units that the scheduling information can schedule, and the first preset value can be used to represent the joint scheduling capability of the terminal. The first preset value of the terminal may be different for the scheduled carriers with different subcarrier spacings. The time domain unit may be a subframe or a time slot. Correspondingly, the first preset value is used to indicate the maximum number of subframes that the scheduling information can be scheduled. For example, the subcarrier spacing of the scheduled carrier CC2 is 15Khz. The first preset value of the terminal is equal to 1, indicating that the data channel resource on the scheduled carrier CC2 within one subframe can be scheduled for the terminal on the scheduling carrier CC1. The first preset value may also be used to indicate the maximum number of time slots that the scheduling information can be scheduled. For example, if the subcarrier spacing of the scheduled carrier CC2 is 15 Khz, the first preset value of the terminal is equal to 2, indicating that the scheduling is in the scheduling. On the carrier CC1, the data channel resources on the scheduled carrier CC2 in the two slots can be scheduled for the terminal at most. The first preset value of the terminal is reported by the system or reported by the terminal to the network device.

In other embodiments, the length of the time domain unit on different carriers may be different. For example, a time domain unit on a frequency resource corresponding to a 15 kHz carrier (in this example, a time domain unit is a time slot as an example) includes seven Orthogonal Frequency Division Multiplexing (OFDM) symbols. The length of the time slot is 0.5 ms; a time domain unit on the frequency resource corresponding to the 60HKz carrier (in this example, one time domain unit is a time slot as an example) includes 14 OFDM symbols, and the length of the time slot. It is 0.25ms. In this case, if the time domain unit lengths of the scheduling carrier and the scheduled carrier are different, the maximum value of the scheduling information may be determined according to the time domain unit length of the scheduled carrier and the time domain unit length of the scheduling carrier, or And determining according to the length of the time domain unit of the scheduled carrier and the length of the time domain unit of the scheduling carrier and the first preset value. One time domain unit may be a subframe, or a slot, or a mini-slot.

In the embodiment of the present application, when determining the maximum value of the scheduling information, the size relationship between the subcarrier spacing of the scheduling carrier and the subcarrier spacing of the scheduled carrier may be used. For example, the size relationship may be represented by the following ratio: The subcarrier spacing of the scheduled carrier is divided by the subcarrier spacing of the scheduling carrier). In another example, the length of the time domain unit on different carriers may be different. When determining the maximum number of scheduling information, the size relationship between the scheduling carrier and the time domain unit length of the scheduled carrier may be used (for example, the size relationship is used). The following ratio is used to indicate that the slot length of the scheduling carrier is divided by the slot length of the scheduled carrier, or the slot length of the scheduled carrier is divided by the time domain length of the scheduling carrier.

Based on the above-mentioned principle of determining the maximum value of the number of scheduling information, the following describes exemplarily several methods for determining the maximum value of the above-mentioned scheduling information provided by the embodiments of the present application.

Method 1: Determine a first ratio, the first ratio being equal to a ratio of a subcarrier spacing of the scheduled frequency resource divided by a subcarrier spacing of the scheduling frequency resource, and dividing by the first preset value, or the first An approximate integer obtained by dividing the ratio of the time domain unit length of the scheduled frequency resource by the time domain unit length of the scheduling frequency resource and dividing by the first preset value. If the first ratio is greater than 1 and less than the first set value, the maximum number of scheduling information is equal to the first ratio, and if the first ratio is greater than 1 and greater than or equal to the first set value, the maximum number of scheduling information The value is equal to the first set value. If the first ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1. The first set value represents a maximum value of the number of scheduling information allowed to be transmitted on the scheduling carrier, which may be specified by a protocol or configured by a system.

The above method 1 can be expressed as the following formula (1):

K=min(b,max(1,M/N))....................................(1)

In formula (1), b represents the maximum value of the number of scheduling information on the scheduled carrier for all terminals or some terminals (including a specific terminal) on the scheduled carrier, and b is an integer greater than or equal to 1. The value of b can be configured by a protocol or by a system, for example, by a system information block (SIB) or by a radio resource control (RRC). The N indicates a first preset value, which is used to represent the joint scheduling capability of the terminal on the scheduling carrier. The value may be the number of subframes, and N is an integer greater than or equal to 1. The min() function is used to return the minimum value in the given parameter list, and the max() function is used to return the maximum value in the given parameter table.

In formula (1),

or,

Wherein, if the M value calculated according to the above formula is not an integer, the M may be approximated (for example, rounded off).

In one example, M is calculated using the following formula:

b=4, for a scheduled carrier with a subcarrier spacing of 15 kHz, the first preset value used to characterize the joint scheduling capability of the terminal multi-subframe is equal to 1, and the scheduled carrier with a subcarrier spacing of 60 kHz is used to characterize the terminal. The first preset value of the subframe joint scheduling capability is equal to two. In the case of a carrier with a carrier spacing of 15 kHz and a subcarrier spacing of 60 kHz, according to the above formula (1), M=4, N=2, then K=2, indicating that at most only the PDCCH in the scheduling carrier is carried. Two scheduling information (such as carrying at most 2 DCIs, or carrying one DCI and including at most 2 information fields for indicating data channel resources of the scheduled carriers). In the case of a carrier with a carrier spacing of 60 kHz and a subcarrier spacing of 15 kHz, according to the above formula (1), M=1/4, N=1, then K=1, indicating that the PDCCH on the scheduling carrier is the most. Only one scheduling information is carried (for example, a maximum of one DCI is carried, or one DCI is carried and the DCI includes at most one information field for indicating the data channel resource of the scheduled carrier).

In another example, M is calculated using the following formula:

b=4, a time domain unit on the frequency resource corresponding to the 15KHz carrier (in this example, one time domain unit is a time slot as an example), including 7 OFDM symbols, the length of the time slot is 0.5 ms; at 60 HKz A time domain unit on the frequency resource corresponding to the carrier (described in this example with one time domain unit as a time slot as an example) includes 14 OFDM symbols, the length of the time slot is 0.25 ms, and the terminal is on the 15 kHz and 60 kHz carriers. The first preset value for characterizing the maximum multi-subframe joint scheduling capability is equal to 1 and 2 respectively (ie, N=1 when the 15KHz carrier is the scheduled carrier, and N=2 when the 60KHz carrier is the scheduled carrier); 60KHz subcarrier When scheduling 15KHz subcarriers, M=0.25/0.5=1/2, M/N=1/2, K=1, that is, at most one DCI is carried in the PDCCH search space; when the 15KHz carrier is scheduled to 60KHz carrier, (0.5ms) The value of /0.25ms) is calculated as M=2, M/N=1, and K=2, that is, at most one DCI is carried in the PDCCH search space.

Method 2: Determine a first ratio, which is calculated in the same manner as Method 1. If the first ratio is greater than 1, the maximum value of the number of scheduling information is equal to the first ratio. If the first ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1.

The above method 2 can be expressed as the following formula (2):

K=max(1,M/N)....................................(2)

among them,

or,

In formula (2), the values and meanings of b and N are the same as formula (1).

Method 3: Determine a product of a first ratio and a second set value, the first ratio being equal to a second ratio of a subcarrier spacing of the scheduled carrier to a subcarrier spacing of the scheduling carrier divided by the first preset value The number of maximum time domain units. If the product is greater than 1 and less than the first set value, the maximum value of the number of scheduling information is equal to the product. If the product is greater than 1 and greater than or equal to the first set value, the maximum number of scheduling information is equal to the first A set value, if the product is less than or equal to 1, the maximum number of scheduling information is equal to one. The value and meaning of the first set value are the same as those in the method 1. The second set value represents the maximum number of subframes allowed to be jointly scheduled on the scheduled carrier, which may be specified by the protocol or configured by the system.

The above method 3 can be expressed as the following formula (3):

K=min(b,max(1,L*M/N))..............................(3)

among them,

In formula (3), the values and meanings of b and N are the same as formula (1). L is the corresponding joint scheduling capability on the scheduling carrier, and L is an integer greater than or equal to 1.

In one example, b=4, for a scheduled carrier with a subcarrier spacing of 60 KHz, the first preset value for characterizing the multi-subframe joint scheduling capability of the terminal is equal to 2 (ie, N=2), at the subcarrier spacing. The maximum number of jointly scheduled subframes on the 15KHz scheduled carrier is 2 (ie, L=2). In the case of a carrier with a subcarrier spacing of 15 kHz and a carrier subcarrier spacing of 60 kHz, M=4, N=2, then K=4.

Method 4

In the method, determining a second ratio, the second ratio being equal to a ratio of the first ratio equal to a subcarrier spacing of the scheduled frequency resource divided by a subcarrier spacing of the scheduling frequency resource, or the second ratio is equal to The approximate integer of the ratio of the time domain unit length of the scheduled frequency resource divided by the time domain unit length of the scheduling frequency resource. If the second ratio is greater than 1 and less than the first set value, the maximum value of the scheduling information is equal to the second ratio, if the second ratio is greater than 1 and greater than or equal to the first set value The maximum value of the scheduling information is equal to the first set value, and if the second ratio is less than or equal to 1, the maximum value of the scheduling information is equal to 1, wherein the first set value By agreement or system configuration.

The above method 4 can be expressed as the following formula (4):

K=min(b,max(1,M))

In formula (4), the value and meaning of b are the same as formula (1), and the formula for calculating M is the same as that in formula (1).

Method 5

In the method, a second ratio is determined, and the second ratio is calculated in the same manner as Method 4. If the second ratio is greater than 1, the maximum value of the scheduling information is equal to the second ratio. If the second ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1.

The above method 4 can be expressed as the following formula (5):

K=max(1,M)

In formula (5), the value and meaning of b are the same as those of formula (1), and M is the same as that in formula (1).

FIG. 5 exemplarily shows a general flow of scheduling information transmission performed by a network device according to an embodiment of the present application. The flow is described by taking a scheduling carrier and a scheduled carrier as an example, but is applicable to other frequency resource scheduling granularities. As shown, the process can include:

S501: The network device determines the number of the scheduling information of the terminal, where the scheduling information is located on the physical downlink control channel, and is used to indicate the data channel resource of the scheduled carrier on the scheduling carrier, where the quantity of the scheduling information is less than or equal to the number of scheduling information. Maximum value.

The maximum number of scheduling information may be determined according to a subcarrier spacing of the scheduled carrier and a subcarrier spacing of the scheduling carrier, or according to a subcarrier spacing of the scheduled carrier, a subcarrier spacing of the scheduling carrier, and the foregoing characterizing the terminal. The first preset value of the joint scheduling capability is determined. The specific determination method is as described in the foregoing embodiment, and is not repeated here.

Wherein, as described in the foregoing embodiments, the data channel may include a PDSCH and/or a PUSCH.

In S501, the network device may determine the number of scheduling information of the terminal according to the terminal data transmission situation and/or the channel quality of the terminal, and ensure that the determined number of scheduling information is less than or equal to the maximum value of the scheduling information. Taking the downlink transmission of the terminal as an example, the base station may determine, according to the data size of the terminal and the channel quality indicator (CQI), the downlink transmission that uses several DCIs to schedule several times for the terminal, when When a large amount of data of the terminal arrives, the base station may decide to use the time domain resource to be full on the 60 kHz subcarrier according to the user data of the terminal. Therefore, it is determined that two DCIs are transmitted, and each DCI indication occupies two time slots corresponding to the 60 kHz subcarrier. When the amount of data for the terminal is small, the base station determines to transmit one DCI to indicate that one or two 60KHz subcarriers corresponding to the time slot are occupied.

Further, when inter-carrier cross-carrier scheduling with different sub-carrier intervals, the basic time unit of scheduling may be determined by the longer one of the scheduling carrier and the basic time unit on the scheduled carrier. For example, when performing cross-carrier scheduling on 15KHz subcarriers and 60KHz subcarriers, one slot on a 15KHz subcarrier is represented as a ms (eg, a=0.5ms), and one slot on a 60KHz subcarrier corresponds to b ms. b=a/4 (eg b=0.125ms), then the time slot of the cross-carrier scheduling is a ms.

S502: The network device sends scheduling information by using a scheduling carrier according to the determined number of scheduling information.

Based on the above flow, in an example, in S501, the network device may determine the number of DCIs in one search space of the terminal; in S502, the network device may send the DCI to the terminal in the search space. The PDCCH search space in this embodiment is consistent with the search space definition on the PDCCH or CORESET discussed in LTE and NR.

The scheduling information may indicate data channel resources of the scheduled carriers in one or more time domain units, as described in the foregoing embodiments. Optionally, the number of the one or more time domain units is less than or equal to the number of maximum time domain units that can be scheduled by the scheduling information indicated by the first preset value for characterizing the joint scheduling capability of the terminal. For example, in a case where the time domain unit is a subframe, one DCI may indicate a data channel resource of the scheduled carrier in one or more subframes, and if it is multiple subframes, the number of the multiple subframes is less than or equal to The maximum number of subframes indicated by the first preset value characterizing the multi-subframe joint scheduling capability. For another example, in a case where the time domain unit is a time slot, one DCI may indicate a data channel resource of the scheduled carrier in one or more time slots, and if there are multiple time slots, the number of the multiple time slots is smaller than Or equal to the maximum number of time slots indicated by the first preset value used to characterize the multi-slot joint scheduling capability.

Optionally, when the scheduling information indicates the data channel resource of the scheduled carrier in the multiple time domain units, the scheduled carriers in each of the multiple time domain units independently carry the transport block, or all Or the scheduled carriers in the partial time domain unit jointly bear the transport block.

For example, in the case where the scheduling information is DCI, in one example, the network device indicates, by DCI, X (X is an integer greater than 1) the data channel resource of the scheduled carrier, and each of the X subframes The subframes independently carry one Transmission Block (TB), or carry two transport blocks that use space division multiplexing, and the transport blocks transmitted in each subframe may be different from each other. In another example, the network device indicates, by DCI, data channel resources of the scheduled carriers in X (X is an integer greater than 1) subframes, and at least 2 subframes of the X subframes jointly carry one transport block. Or jointly carrying two transport blocks using space division multiplexing.

FIG. 6 exemplarily shows a mapping relationship between a subframe and a transport block when multi-subframe joint scheduling is performed by a plurality of DCIs. As shown, the network device may indicate X (X is an integer greater than 1) data channel resources of the scheduled carrier through n (n is an integer greater than or equal to 1) DCI. The first subframe and the second subframe jointly carry the first transport block, and the Xth subframe independently carries the Yth transport block. A DCI may indicate data channel resources of scheduled carriers in one or more subframes. It can be seen that the mapping and transmission of Y transport blocks on X subframes can be indicated by one or more DCIs, where X>1, there is no limit for Y, and there is no limit to the relationship between X and Y.

For another example, in the case that the scheduling information is an information domain in the DCI, in one example, the network device indicates, by using multiple information fields in the DCI, data of the X (X is an integer greater than 1) time slot in the scheduled carrier. Channel resources, each of the X time slots, each time slot carries one transport block independently, or carries two transport blocks that use space division multiplexing. In another example, the network device indicates, by using multiple information fields in the DCI, data channel resources of the X (X is an integer greater than 1) time slot, and at least 2 of the X time slots. The time slots jointly carry one transport block or jointly carry two transport blocks that use space division multiplexing.

FIG. 7 exemplarily shows a mapping relationship between a time slot and a transport block when multi-slot joint scheduling is performed by a plurality of information fields in the DCI. As shown in the figure, the network device may indicate X (X is an integer greater than 1) data channel resources of the scheduled carrier through the n (n is an integer greater than or equal to 1) information field in the DCI. The first time slot independently carries the first transport block, the second time slot independently carries the second transport block, and the X-1 time slot and the Xth time slot jointly carry the Yth transport block. An information field may indicate data channel resources of a scheduled carrier in one or more time slots. It can be seen that the mapping and transmission of Y transport blocks on X time slots can be indicated by one or more information fields in a DCI, where X>1, there is no restriction on Y, and the relationship between X and Y is also No limit.

Further, in the case that the scheduling information is an information domain in the DCI, one information field may be used to indicate a data channel resource of the scheduled carrier in one time domain unit. An information field may include first indication information, where the first indication information in an information field is used to indicate whether the scheduled carrier is independently carrying a transport block on the time domain unit, or is associated with a scheduled carrier in other time domain units. Carry the transport block. For example, referring to FIG. 7, the first indication information included in the information field 1 is used to indicate that the scheduled carrier independently carries the second TB on the second time slot, and the first indication information included in the information field n is used to indicate that the scheduled information is scheduled. The carrier carries the Yth TB in conjunction with other time slots on the x-1th time slot.

Optionally, in a case that the scheduling information is DCI, the network device includes a first information field in the sent DCI, where the first information field is used to indicate whether the number of DCIs sent by the network device is one or more. The length of the first information field may be 1 bit, and of course more bits. For example, the bit sequence carried by the first information field takes a value of 0, indicating that the network device sends a DCI, and the value of the bit sequence is 1 indicating that the network device sends multiple DCIs. In this way, if the terminal determines that the number of received DCIs is equal to the number of DCIs indicated by the first information field, the terminal stops receiving DCIs sent by the network device, such as stopping in the current PDCCH search space, according to the first information field in the received DCI. Continue to search for DCI, which can save the processing overhead of the terminal and save the power consumption of the terminal.

The first information field can also be used to indicate the number of DCIs sent by the network device. In this case, the length of the first information field may be

Bits, K represents the maximum number of DCIs,

The representation is rounded up. For example, the maximum number of DCIs is 4. In this case, the number of DCIs sent by the network device may be 1, 2, 3, or 4. The length of the first information field is 2 bits. If the bit sequence carried in the first information field is 00, it indicates that the network device sends one DCI. If the bit sequence is 01, the network device sends two DCIs. If the bit sequence is 10, the network device sends three DCIs. When the bit sequence takes a value of 11, it means that the network device sends 4 DCIs. In this way, if the terminal determines that the number of DCIs sent by the network device is one according to the first information field in the received DCI, the terminal may stop receiving the DCI sent by the network device, for example, stop searching for the DCI in the current PDCCH search space, thereby saving The processing overhead of the terminal can further save the power consumption of the terminal.

FIG. 8 exemplarily shows a scheduling information transmission flow implemented by a terminal side according to an embodiment of the present application. The flow is described by taking a scheduling carrier and a scheduled carrier as an example, but is applicable to other frequency resource types, such as BP. As shown, the process can include:

S801: The terminal determines the quantity of scheduling information. The scheduling information is located on a physical downlink control channel, and is used to indicate a data channel resource of the scheduled carrier on the scheduling carrier, where the scheduling information is an information domain in the DCI or DCI, and the quantity of the scheduling information is less than or equal to the scheduling. The maximum number of messages.

The maximum number of scheduling information may be determined according to the subcarrier spacing of the scheduled carrier and the subcarrier spacing of the scheduling carrier, or according to the subcarrier spacing of the scheduled carrier, the subcarrier spacing of the scheduling carrier, and used to characterize the joint scheduling. The first preset value of the ability is determined. The specific determination method is as described in the foregoing embodiment, and is not repeated here.

It should be noted that the meanings of the technical terms involved in the foregoing process shown in FIG. 8 are the same as those of the foregoing embodiments. For example, the physical downlink control channel may be a PDCCH, and the data channel may be a PDSCH and/or Or PUSCH. It should be noted that the content, structure, and mapping relationship between the information domain and the transport block included in the DCI or the DCI transmitted by the network device may be the same as those in the foregoing embodiment, and are not repeated here. The process does not limit how the network device determines the number of DCIs or the number of information domains included in the DCI. The network device can determine the number of DCIs or the number of information domains included in the DCI in the manner described in the foregoing embodiments. Other methods are ok.

S802: The terminal receives scheduling information on the scheduling carrier according to the determined number of scheduling information.

In this step, the terminal may receive scheduling information in the PDCCH search space of the scheduling carrier according to the number of scheduling information determined in S801. For example, if the terminal determines that the number of DCIs is one, the search may be stopped after searching for a DCI in the PDCCH search space of the scheduling carrier, so as to save processing overhead of the terminal, thereby saving power consumption. For example, if the terminal determines that the number of DCIs is two, the search may be stopped after searching for two DCIs in the PDCCH search space of the scheduling carrier, so as to save processing overhead of the terminal, thereby saving power consumption. It can be seen that when the terminal determines that the number of currently received DCIs is equal to the number of DCIs determined in S801, the terminal can stop the DCI search.

Optionally, in the case that the scheduling information is DCI, in an example of the foregoing process, the DCI may include a first information domain, where the information domain is used to indicate the number of DCIs sent by the network device. In S802, if the terminal determines, according to the first information field in the received DCI, that the number of received DCIs is equal to the number of DCIs indicated by the first information field, the terminal may stop receiving the DCI sent by the network device, that is, stop scheduling. The DCI is searched in the PDCCH search space of the carrier to save the processing overhead of the terminal, thereby saving power consumption.

Optionally, in the case that the scheduling information is DCI, in another example of the foregoing process, the DCI may include a first information field, where the information field is used to indicate whether the number of DCIs sent by the network device is one or Multiple. In S802, if the terminal determines, according to the first information field in the received DCI, that the number of DCIs sent by the network device is one, the terminal may stop receiving DCI sent by the network device, that is, stop searching for DCI in the PDCCH search space of the scheduling carrier. In order to save the processing overhead of the terminal, thereby saving power consumption.

A further embodiment of the present application further provides a scheduling information transmission method and a device based on the method, the device comprising a network device and a terminal. The network device may be a RAN node or a base station. The method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.

FIG. 9 exemplarily shows a flow of scheduling information transmission implemented by a network device side according to an embodiment of the present application. The process is described by taking a scheduling carrier and a scheduled carrier as an example, but is applicable to other frequency resource types, such as BP. As shown, the process can include:

S901: The network device determines the number of downlink control information DCI in one search space of the terminal. The PDCCH search space in this embodiment is consistent with the search space definition on the PDCCH or CORESET discussed in LTE and NR.

The network device may determine the number of DCIs according to the method described in the foregoing embodiment, and may determine the number of DCIs by using other methods. This process does not limit this.

S902: The network device sends the determined number of DCIs to the terminal, or sends indication information, where the indication information is used to indicate whether the number of DCIs in the one search space is one or more.

In an example based on the above flow, in S901, the network device determines the number of DCIs in a search space, the DCI being used to indicate data channel resources of the scheduled carrier on the scheduling carrier. In S902, the network device sends a DCI by using a scheduling carrier, where the DCI includes a first information field, where the first information field is used to indicate the number of the DCI, or is used to indicate that the number of DCIs sent by the network device is One or more. The scheduling carrier and the scheduled carrier may be the same carrier or different carriers. Further, if the scheduling carrier and the scheduled carrier are different carriers, the subcarrier spacing of the two carriers may be the same or different.

Optionally, the network device may allocate multiple PDCCH search spaces to the terminal. The PDCCH search space in this embodiment is consistent with the search space definition on the PDCCH or CORESET discussed in LTE and NR.

Optionally, in the process shown in FIG. 9, the DCI sent by the network device includes a first information field, where the first information field is used to indicate the number of DCIs sent by the network device, or is used to indicate the one. Is the number of DCIs in the search space one or more?

Optionally, in the process shown in FIG. 9, the DCI sent by the network device may be used to indicate a data channel resource of the scheduled carrier in one or more time domain units, where the number of the one or more time domain units is less than or And a number of maximum time domain units that can be scheduled by the DCI indicated by the first preset value.

Optionally, in the process shown in FIG. 9, the DCI sent by the network device may be used to indicate a data channel resource of the scheduled carrier in one or more time domain units; the DCI indicates that the multiple time domain units are scheduled. In the data channel resource of the carrier, the scheduled carriers in each time domain unit independently carry the transport block, or the scheduled carriers in all or part of the time domain unit jointly bear the transport block.

It should be noted that the meanings of the technical terms involved in the foregoing process shown in FIG. 9 are the same as those of the foregoing embodiments. For example, the physical downlink control channel may be a PDCCH, and the data channel may be a PDSCH and/or Or PUSCH. As another example, the time domain unit can be a subframe or a time slot.

It can be seen that, after the network device determines the number of DCIs, the network device sends the determined number of DCIs to the terminal, or sends indication information related to the number of DCIs, so that the terminal can enable the terminal to send DCI according to the network device. The number or indication information is received by the DCI. For example, when it is determined that the number of received DCIs is equal to the number of DCIs sent by the network device, the DCI can be continuously searched in the PDCCH space, thereby saving processing overhead of the terminal, thereby saving the terminal. Power overhead.

FIG. 10 exemplarily shows a scheduling information transmission process implemented by the terminal side according to the embodiment of the present application. The flow is described by taking a scheduling carrier and a scheduled carrier as an example, but is applicable to other frequency resource types, such as BP. As shown, the process can include:

S1001: The terminal receives the number of DCIs sent by the network device or indication information, where the indication information is used to indicate whether the number of DCIs in the one search space is one or more. The PDCCH search space in this embodiment is consistent with the search space definition on the PDCCH or CORESET discussed in LTE and NR.

The method for determining the number of DCIs and the method for transmitting the DCI by the network device may be the same as the related steps in FIG. 9, and is not repeated here.

S1002: The terminal receives the DCI in the one search space according to the number of the DCI or the indication information.

Optionally, in an example of the foregoing process, the DCI may include a first information field, where the information field is used to indicate the number of DCIs sent by the network device. In S1002, if the terminal determines, according to the first information field in the received DCI, that the number of received DCIs is equal to the number of DCIs indicated by the first information field, the terminal may stop receiving the DCI sent by the network device, that is, stop scheduling. The DCI is searched in the PDCCH search space of the carrier to save the processing overhead of the terminal, thereby saving power consumption.

Optionally, in another example of the foregoing process, the DCI may include a first information field, where the information field is used to indicate whether the number of DCIs sent by the network device is one or more. In S1002, if the terminal determines, according to the first information field in the received DCI, that the number of DCIs sent by the network device is one, the terminal may stop receiving the DCI sent by the network device, that is, stop searching for the DCI in the PDCCH search space of the scheduling carrier. In order to save the processing overhead of the terminal, thereby saving power consumption.

Based on the same technical concept, the embodiment of the present application further provides a scheduling information transmission apparatus, which is used for a network device, and the network device may be a RAN node or a base station. The apparatus can implement the process described in Figure 8 or related embodiments.

Referring to FIG. 11, the apparatus may include: a determining module 1101, a sending module 1102, wherein:

The determining module 1101 is configured to determine the number of scheduling information of the terminal, and the sending module 1102 is configured to send the scheduling information by using the scheduling frequency resource according to the determined number of scheduling information. The scheduling information is located on a physical downlink control channel, and is used to indicate a data channel resource of the scheduled frequency resource on the scheduling frequency resource, where the scheduling information is an information domain in the DCI or the DCI, where the quantity of the scheduling information is less than or equal to The maximum number of scheduling information, the maximum number of scheduling information is determined according to the subcarrier spacing of the scheduled frequency resource and the subcarrier spacing of the scheduling frequency resource, or the time domain unit length and the scheduling frequency resource according to the scheduled frequency resource. The length of the time domain unit is determined, or is determined according to the subcarrier spacing of the scheduled frequency resource, the subcarrier spacing of the scheduling frequency resource, and the first preset value, or the time unit length and the scheduling frequency according to the scheduled frequency resource. The length of the time unit of the resource and the first preset value are determined, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.

Optionally, the scheduling information is used to indicate a data channel resource of the scheduled frequency resource in one or more time domain units, where the number of the one or more time domain units is less than or equal to the first preset value. The indicated maximum amount of time domain units that the scheduling information can schedule.

Optionally, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; and the scheduling information indicates data channel resources of scheduled frequency resources in multiple time domain units. In the plurality of time domain units, the scheduled frequency resource in each time domain unit independently carries the transport block, or the scheduled frequency resource in all or part of the time domain unit jointly bears the transport block.

Optionally, when the scheduling information is DCI, the DCI sent by the network device includes a first information field, where the first information field is used to indicate the number of DCIs sent by the network device, or is used to indicate Whether the number of DCIs sent by the network device is one or more.

Optionally, when the scheduling information is an information field in a DCI, an information field is used to indicate a data channel resource of a scheduled frequency resource in a time domain unit; and an information field includes a first indication information, and an information domain. The first indication information is used to indicate whether the scheduled frequency resource is independently carrying the transport block on the time domain unit, or is jointly carrying the transport block with the scheduled frequency resource in other time domain units.

Based on the same technical concept, the embodiment of the present application further provides a scheduling information transmission apparatus for a terminal, which can implement the process described in FIG. 9 or related embodiments.

Referring to FIG. 12, the apparatus may include: a determining module 1201, a receiving module 1202, wherein:

The determining module 1201 is configured to determine the quantity of scheduling information, and the receiving module 1202 is configured to receive scheduling information on the scheduling frequency resource according to the determined quantity of scheduling information. The scheduling information is located on the physical downlink control channel, and is used to indicate a data channel resource of the scheduled frequency resource on the scheduling frequency resource, where the scheduling information is an information domain in the downlink control information DCI or DCI, where the scheduling information is The quantity is less than or equal to the maximum number of scheduling information, and the maximum number of scheduling information is determined according to the subcarrier spacing of the scheduled frequency resource and the subcarrier spacing of the scheduling frequency resource, or the length of the time domain unit according to the scheduled frequency resource. And determining the time domain unit length of the scheduling frequency resource, or determining according to the subcarrier spacing of the scheduled frequency resource, the subcarrier spacing of the scheduling frequency resource, and the first preset value, or the time unit according to the scheduled frequency resource. The length of the time unit of the length and the scheduling frequency resource and the first preset value are determined, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.

Optionally, the scheduling information is used to indicate a data channel resource of the scheduled frequency resource in one or more time domain units, where the number of the one or more time domain units is less than or equal to the first preset value. The indicated maximum amount of time domain units that the scheduling information can schedule.

Optionally, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; and the scheduling information indicates data channel resources of scheduled frequency resources in multiple time domain units. In the plurality of time domain units, the scheduled frequency resource in each time domain unit independently carries the transport block, or the scheduled frequency resource in all or part of the time domain unit jointly bears the transport block.

Optionally, when the scheduling information is DCI, the DCI sent by the network device includes a first information domain, where the first information domain is used to indicate the number of DCIs sent by the network device; And if: determining, according to the first information field in the received DCI, that the number of received DCIs is equal to the number of DCIs indicated by the first information domain, stopping receiving DCIs sent by the network device; or

When the scheduling information is DCI, the DCI sent by the network device includes a first information field, where the first information field is used to indicate whether the number of DCIs sent by the network device is one or more; And if: determining, according to the first information field in the received DCI, that the number of DCIs sent by the network device is one, stopping receiving the DCI sent by the network device.

Optionally, when the scheduling information is an information field in a DCI, an information field is used to indicate a data channel resource of a scheduled frequency resource in a time domain unit; and an information field includes a first indication information, and an information domain. The first indication information is used to indicate whether the scheduled frequency resource is independently carrying the transport block on the time domain unit, or is jointly carrying the transport block with the scheduled frequency resource in other time domain units.

Based on the same technical concept, the embodiment of the present application further provides a scheduling information transmission apparatus, which is used for a network device, and the network device may be a RAN node or a base station. The apparatus can implement the process described in Figure 10 or related embodiments.

Referring to FIG. 13, the apparatus may include: a determining module 1301, a sending module 1302, wherein:

The determining module 1301 is configured to determine the number of downlink control information DCI in one search space of the terminal; the sending module 1302 is configured to send the number of the DCI to the terminal, or send indication information, where the indication information is used to indicate the one Is the number of DCIs in the search space one or more?

Optionally, the DCI includes a first information field, where the first information field is used to indicate the number of DCIs sent by the network device, or is used to indicate whether the number of DCIs in the one search space is one or more. One.

Optionally, the DCI is used to indicate a data channel resource of the scheduled frequency resource in one or more time domain units, where the number of the one or more time domain units is less than or equal to that indicated by the joint scheduling capability. The number of maximum time domain units that the DCI can schedule.

Optionally, the DCI is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; when the DCI indicates data channel resources of scheduled frequency resources in multiple time domain units, In the plurality of time domain units, the scheduled frequency resources in each time domain unit independently carry the transport block, or the scheduled frequency resources in all or part of the time domain unit jointly bear the transport block.

Based on the same technical concept, the embodiment of the present application further provides a scheduling information transmission apparatus, which is used for a terminal, and can implement the process described in FIG. 11 or related embodiments.

Referring to FIG. 14, the apparatus may include: a first receiving module 1401, a second receiving module 1402, wherein:

The first receiving module 1401 is configured to receive the number of DCIs sent by the network device or the indication information, where the indication information is used to indicate whether the number of DCIs in the one search space is one or more; and the second receiving module 1402 is configured to use the The number or indication information of the DCI is received, and the DCI is received in the one search space.

Optionally, the DCI includes a first information field, where the first information field is used to indicate the number of DCIs sent by the network device, and the second receiving module is specifically configured to: according to the received DCI The first information field determines that the number of received DCIs is equal to the number of DCIs indicated by the first information field, and stops receiving DCIs in the one search space; or the first information domain is included in the DCI. The first information field is used to indicate whether the number of DCIs in the one search space is one or more; the second receiving module is specifically configured to: determine, according to the first information field in the received DCI, the network device to send If the number of DCIs is one, the reception of DCI in the one search space is stopped.

Optionally, the DCI is used to indicate a data channel resource of the scheduled frequency resource in one or more time domain units, where the number of the one or more time domain units is less than or equal to that indicated by the joint scheduling capability. The number of maximum time domain units that the DCI can schedule.

Optionally, the DCI is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; when the DCI indicates data channel resources of scheduled frequency resources in multiple time domain units, In the plurality of time domain units, the scheduled frequency resources in each time domain unit independently carry the transport block, or the scheduled frequency resources in all or part of the time domain unit jointly bear the transport block.

It should be noted that the division of the modules in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner. In addition, each functional unit in each embodiment of the present application may be used. It can be integrated in one processing unit, or it can exist physically alone, or two or more units can be integrated in one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

Based on the above embodiment, the embodiment of the present application further provides a computer storage medium, where the software program stores a software program, and the software program can implement the method provided by the foregoing embodiment when being read and executed by one or more processors. . The computer storage medium may include: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. medium.

Based on the above embodiments, the embodiment of the present application further provides a computer program product including instructions, which when executed on a computer, causes the computer to execute the method provided by the foregoing embodiments.

Based on the above embodiment, the embodiment of the present application further provides a scheduling information transmission apparatus, and the apparatus is applicable to the communication network shown in FIG. 1 for implementing the method shown in FIG. 5, as shown in FIG. The function of the network device. Referring to FIG. 15, the apparatus may include a communication interface 1501, a processor 1502, and a memory 1503. The communication interface 1501, the processor 1502, and the memory 1503 are connected to each other.

Optionally, the communication interface 1501, the processor 1502, and the memory 1503 may be connected to each other through a bus 1504. The bus 1504 may be a peripheral component interconnect (PCI) bus or an extended industry standard (extended industry standard). Architecture, EISA) bus, etc. The bus 1504 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 15, but it does not mean that there is only one bus or one type of bus.

The communication interface 1501 is configured to receive and transmit data to implement communication with other devices in the communication network, such as a forwarding device. Optionally, the communication interface includes a port.

The memory 1503 is used to store program instructions and the like. In particular, program instructions may include program code, the program code including computer-operated instructions. The memory 1503 may include a random access memory (RAM), and may also include a non-volatile memory such as at least one disk storage. The processor 1502 executes the program stored in the memory 1503 to implement the above functions, thereby implementing the method provided by the above embodiments.

The processor 1502 is configured to implement the method shown in FIG. 5, including: determining the number of scheduling information of the terminal, and transmitting, by using the scheduling frequency resource, the scheduling information by using the communication interface 1501 according to the determined number of scheduling information. The scheduling information is located on the physical downlink control channel, and is used to indicate a data channel resource of the scheduled frequency resource on the scheduling frequency resource, where the scheduling information is an information domain in the downlink control information DCI or DCI, where the scheduling information is The quantity is less than or equal to the maximum number of scheduling information, and the maximum number of scheduling information is determined according to the subcarrier spacing of the scheduled frequency resource and the subcarrier spacing of the scheduling frequency resource, or the length of the time domain unit according to the scheduled frequency resource. And determining the time domain unit length of the scheduling frequency resource, or determining according to the subcarrier spacing of the scheduled frequency resource, the subcarrier spacing of the scheduling frequency resource, and the first preset value, or the time unit according to the scheduled frequency resource. The length of the time unit of the length and the scheduling frequency resource and the first preset value are determined, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.

Optionally, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units, where the number of the one or more time domain units is less than or equal to that indicated by the joint scheduling capability. The number of maximum time domain units that the scheduling information can schedule.

Optionally, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; and the scheduling information indicates data channel resources of scheduled frequency resources in multiple time domain units. In the plurality of time domain units, the scheduled frequency resource in each time domain unit independently carries the transport block, or the scheduled frequency resource in all or part of the time domain unit jointly bears the transport block.

Optionally, when the scheduling information is DCI, the DCI sent by the network device includes a first information field, where the first information field is used to indicate the number of DCIs sent by the network device, or is used to indicate Whether the number of DCIs sent by the network device is one or more.

Optionally, when the scheduling information is an information field in a DCI, an information field is used to indicate a data channel resource of a scheduled frequency resource in a time domain unit; and an information field includes a first indication information, and an information domain. The time domain unit aggregation indication information is used to indicate whether the scheduled frequency resource is an independent bearer transport block on the time domain unit or a bearer transport block in association with the scheduled frequency resource in other time domain units.

Optionally, the maximum value of the quantity of scheduling information is determined according to the following manner, including: determining a first ratio, if the first ratio is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to The first ratio, if the first ratio is greater than 1 and greater than or equal to the first set value, the maximum value of the scheduling information is equal to the first set value, if the first ratio is less than If the value is equal to 1, the maximum number of the scheduling information is equal to 1, wherein the first setting value is specified by a protocol or a system configuration.

Optionally, the maximum number of the scheduling information may also be determined according to the following manner, including: determining a first ratio, if the first ratio is greater than 1, the maximum value of the scheduling information is equal to the first ratio If the first ratio is less than or equal to 1, the maximum number of the scheduling information is equal to 1.

Optionally, the maximum number of the scheduling information may also be determined according to the following manner, including: determining a product of the first ratio and the second set value, if the product is greater than 1 and less than the first set value, The maximum value of the number of scheduling information is equal to the product, and if the product is greater than 1 and greater than or equal to the first set value, the maximum value of the number of scheduling information is equal to the first set value, if If the product is less than or equal to 1, the maximum value of the number of scheduling information is equal to 1, wherein the first set value and the second set value are specified by a protocol or a system configuration.

The first ratio is equal to a second ratio of a subcarrier spacing of the scheduled frequency resource to a subcarrier spacing of the scheduling frequency resource divided by a maximum number of time domain units indicated by the joint scheduling capability.

Based on the above embodiment, the embodiment of the present application further provides a scheduling information transmission apparatus, and the apparatus is applicable to the communication network shown in FIG. 1 for implementing the method shown in FIG. The function of the terminal. Referring to FIG. 16, the apparatus may include a communication interface 1601, a processor 1602, and a memory 1603. The communication interface 1601, the processor 1602, and the memory 1603 are connected to each other.

Optionally, the communication interface 1601, the processor 1602, and the memory 1603 may be connected to each other through a bus 1604; the bus 1604 may be a peripheral component interconnect (PCI) bus or an extended industry standard (extended industry standard) Architecture, EISA) bus, etc. The bus 1604 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 16, but it does not mean that there is only one bus or one type of bus.

The communication interface 1601 is configured to receive and transmit data to implement communication with other devices (such as forwarding devices) in the communication network. Optionally, the communication interface includes a port.

The memory 1603 is for storing program instructions and the like. In particular, program instructions may include program code, the program code including computer-operated instructions. The memory 1603 may include a random access memory (RAM), and may also include a non-volatile memory such as at least one disk storage. The processor 1602 executes the program stored in the memory 1603 to implement the above functions, thereby implementing the method provided by the above embodiments.

The processor 1602 is configured to implement the method as shown in FIG. 8, including: determining the number of scheduling information, and receiving scheduling information on the scheduling frequency resource by using the communication interface 1601 according to the determined number of scheduling information. The scheduling information is located on the physical downlink control channel, and is used to indicate a data channel resource of the scheduled frequency resource on the scheduling frequency resource, where the scheduling information is an information domain in the downlink control information DCI or DCI, where the scheduling information is The quantity is less than or equal to the maximum number of scheduling information, and the maximum number of scheduling information is determined according to the subcarrier spacing of the scheduled frequency resource and the subcarrier spacing of the scheduling frequency resource, or the length of the time domain unit according to the scheduled frequency resource. And determining the time domain unit length of the scheduling frequency resource, or determining according to the subcarrier spacing of the scheduled frequency resource, the subcarrier spacing of the scheduling frequency resource, and the first preset value, or the time unit according to the scheduled frequency resource. The length of the time unit of the length and the scheduling frequency resource and the first preset value are determined, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.

Optionally, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units, where the number of the one or more time domain units is less than or equal to that indicated by the joint scheduling capability. The number of maximum time domain units that the scheduling information can schedule.

Optionally, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; and the scheduling information indicates data channel resources of scheduled frequency resources in multiple time domain units. In the plurality of time domain units, the scheduled frequency resource in each time domain unit independently carries the transport block, or the scheduled frequency resource in all or part of the time domain unit jointly bears the transport block.

Optionally, when the scheduling information is DCI, the DCI sent by the network device includes a first information domain, where the first information domain is used to indicate the number of DCIs sent by the network device, and the processor 1602 is specifically used. After receiving the first information field in the received DCI, determining that the number of received DCIs is equal to the number of DCIs indicated by the first information field, stopping receiving the DCs sent by the network device through the communication interface 1601. .

Optionally, when the scheduling information is DCI, the DCI sent by the network device includes a first information field, where the first information field is used to indicate whether the number of DCIs sent by the network device is one or more; The device 1602 is specifically configured to: if it is determined that the number of DCIs sent by the network device is one according to the first information field in the received DCI, stop receiving the DCI sent by the network device through the communication interface 1601.

Based on the above embodiment, the embodiment of the present application further provides a scheduling information transmission apparatus, and the apparatus is applicable to the communication network shown in FIG. 1 for implementing the method shown in FIG. The function of the network device. Referring to FIG. 17, the apparatus may include a communication interface 1701, a processor 1702, and a memory 1703. The communication interface 1701, the processor 1702, and the memory 1703 are connected to each other.

Optionally, the communication interface 1701, the processor 1702, and the memory 1703 may be connected to each other through a bus 1704; the bus 1704 may be a peripheral component interconnect (PCI) bus or an extended industry standard (extended industry standard) Architecture, EISA) bus, etc. The bus 1704 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 17, but it does not mean that there is only one bus or one type of bus.

The communication interface 1701 is configured to receive and transmit data to implement communication with other devices (such as forwarding devices) in the communication network. Optionally, the communication interface includes a port.

The memory 1703 is used to store program instructions and the like. In particular, program instructions may include program code, the program code including computer-operated instructions. The memory 1703 may include a random access memory (RAM), and may also include a non-volatile memory such as at least one disk storage. The processor 1702 executes the program stored in the memory 1703 to implement the above functions, thereby implementing the method provided in the above embodiments.

The processor 1702 is configured to implement the method as shown in FIG. 9, including: determining the number of downlink control information DCI in one search space of the terminal; transmitting the number of the DCI to the terminal through the communication interface 1701, or sending the indication information The indication information is used to indicate whether the number of DCIs in the one search space is one or more.

Optionally, the DCI includes a first information field, where the first information field is used to indicate the number of DCIs sent by the network device, or is used to indicate whether the number of DCIs in the one search space is one or more. One.

Optionally, the DCI is used to indicate a data channel resource of the scheduled frequency resource in one or more time domain units, where the number of the one or more time domain units is less than or equal to that indicated by the first preset value. The number of maximum time domain units that the DCI can schedule, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.

Optionally, the DCI is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; when the DCI indicates data channel resources of scheduled frequency resources in multiple time domain units, In the plurality of time domain units, the scheduled frequency resources in each time domain unit independently carry the transport block, or the scheduled frequency resources in all or part of the time domain unit jointly bear the transport block.

Based on the above embodiment, the embodiment of the present application further provides a scheduling information transmission apparatus, and the apparatus is applicable to the communication network shown in FIG. 1 for implementing the method shown in FIG. 10, as shown in FIG. The function of the terminal. Referring to FIG. 18, the apparatus may include a communication interface 1801, a processor 1802, and a memory 1803. The communication interface 1801, the processor 1802, and the memory 1803 are connected to each other.

Optionally, the communication interface 1801, the processor 1802, and the memory 1803 may be connected to each other through a bus 1804; the bus 1804 may be a peripheral component interconnect (PCI) bus or an extended industry standard (extended industry standard) Architecture, EISA) bus, etc. The bus 1804 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 18, but it does not mean that there is only one bus or one type of bus.

The communication interface 1801 is configured to receive and transmit data to implement communication with other devices (such as forwarding devices) in the communication network. Optionally, the communication interface includes a port.

The memory 1803 is used to store program instructions and the like. In particular, program instructions may include program code, the program code including computer-operated instructions. The memory 1803 may include a random access memory (RAM), and may also include a non-volatile memory such as at least one disk storage. The processor 1802 executes the program stored in the memory 1803 to implement the above functions, thereby implementing the method provided by the above embodiments.

The processor 1802 is configured to implement the method as shown in FIG. 10, including: receiving, by the communication interface 1801, the number of DCIs sent by the network device or indication information, where the indication information is used to indicate that the number of DCIs in the one search space is One or more; according to the number or indication information of the DCI, the DCI is received in the one search space through the communication interface 1801.

Optionally, the DCI includes a first information field, where the first information field is used to indicate the number of DCIs sent by the network device, and the terminal is in the one according to the number of DCIs or indication information. Receiving the DCI in the search space includes: if the terminal determines, according to the first information field in the received DCI, that the number of received DCIs is equal to the number of DCIs indicated by the first information domain, stopping the one search Receive DCI in space; or,

The DCI includes a first information field, where the first information field is used to indicate whether the number of DCIs in the one search space is one or more; and the terminal is used according to the number of DCIs or indication information. Receiving the DCI in a search space includes: if the terminal determines, according to the first information field in the received DCI, that the number of DCIs sent by the network device is one, stopping receiving DCI in the one search space.

Optionally, the DCI is used to indicate a data channel resource of the scheduled frequency resource in one or more time domain units, where the number of the one or more time domain units is less than or equal to that indicated by the first preset value. The number of maximum time domain units that the DCI can schedule, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.

Optionally, the DCI is used to indicate data channel resources of scheduled frequency resources in one or more time domain units; when the DCI indicates data channel resources of scheduled frequency resources in multiple time domain units, In the plurality of time domain units, the scheduled frequency resources in each time domain unit independently carry the transport block, or the scheduled frequency resources in all or part of the time domain unit jointly bear the transport block.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims (34)

1. A scheduling information transmission method, comprising:

   The network device determines the number of the scheduling information of the terminal, where the scheduling information is located on the physical downlink control channel, and is used to indicate the data channel resource of the scheduled frequency resource on the scheduling frequency resource, where the scheduling information is in the downlink control information DCI or DCI. The information field, the quantity of the scheduling information is less than or equal to the maximum number of scheduling information, and the maximum number of scheduling information is determined according to the subcarrier spacing of the scheduled frequency resource and the subcarrier spacing of the scheduling frequency resource, or is based on Determining the time domain unit length of the scheduling frequency resource and the time domain unit length of the scheduling frequency resource, or determining according to the subcarrier spacing of the scheduled frequency resource, the subcarrier spacing of the scheduling frequency resource, and the first preset value, or The first preset value is used to determine the maximum number of time domain units that can be scheduled by the scheduling information, according to the time unit length of the scheduled frequency resource and the time unit length of the scheduling frequency resource and the first preset value. ;

   The network device sends the scheduling information by using the scheduling frequency resource according to the determined number of scheduling information.
2. The method of claim 1, wherein the scheduling information is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units, the number of the one or more time domain units being less than Or equal to the number of maximum time domain units that the scheduling information indicated by the first preset value can be scheduled.
3. The method according to claim 1 or 2, wherein the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units;

   When the scheduling information indicates data channel resources of the scheduled frequency resources in the plurality of time domain units, the scheduled frequency resources in each of the plurality of time domain units independently carry the transport block, or all or The scheduled frequency resources in the partial time domain unit jointly bear the transport block.
4. The method according to any one of claims 1 to 3, wherein, when the scheduling information is DCI, the DCI sent by the network device includes a first information field, and the first information field is used to indicate The number of DCIs sent by the network device, or used to indicate whether the number of DCIs sent by the network device is one or more.
5. The method according to any one of claims 1 to 3, wherein, when the scheduling information is an information field in a DCI, an information field is used to indicate a data channel of a scheduled frequency resource in a time domain unit. Resource

   An information field includes first indication information, and time domain unit aggregation indication information in an information field is used to indicate whether the scheduled frequency resource is independently carried on the time domain unit, or is scheduled in other time domain units. The frequency resource jointly carries the transport block.
6. The method according to any one of claims 1 to 5, wherein the maximum number of the scheduling information is determined according to the following manner, including:

   Determining a first ratio, if the first ratio is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the first ratio, if the first ratio is greater than 1 and greater than or equal to a first set value, the maximum value of the number of scheduling information is equal to the first set value, and if the first ratio is less than or equal to 1, the maximum value of the number of scheduling information is equal to 1, wherein The first set value is specified by the protocol or the system configuration; or,

   Determining a first ratio, if the first ratio is greater than 1, the maximum value of the scheduling information is equal to the first ratio, and if the first ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1; or,

   Determining a product of the first ratio and the second set value. If the product is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the product, if the product is greater than 1 and greater than or equal to The first set value, the maximum value of the scheduling information is equal to the first set value, and if the product is less than or equal to 1, the maximum value of the scheduling information is equal to 1, wherein Said first set value and said second set value are specified by agreement or system configuration; or

   Determining a second ratio, if the second ratio is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the second ratio, if the second ratio is greater than 1 and greater than or equal to a first set value, the maximum value of the number of scheduling information is equal to the first set value, and if the second ratio is less than or equal to 1, the maximum value of the number of scheduling information is equal to 1, wherein The first set value is specified by the protocol or the system configuration; or,

   Determining a second ratio. If the second ratio is greater than 1, the maximum value of the scheduling information is equal to the second ratio. If the second ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1;

   The first ratio is equal to a ratio of a subcarrier spacing of the scheduled frequency resource divided by a subcarrier spacing of the scheduling frequency resource, and is further divided by the first preset value, or the first ratio is equal to the scheduled frequency. The ratio of the time domain unit length of the resource divided by the time domain unit length of the scheduling frequency resource is further divided by the first predetermined value; the second ratio is equal to the first ratio equal to The ratio of the subcarrier spacing of the scheduling frequency resource divided by the subcarrier spacing of the scheduling frequency resource, or the second ratio is equal to the length of the time domain unit of the scheduled frequency resource divided by the length of the time domain unit of the scheduling frequency resource. An approximate integer of the ratio.
7. A scheduling information transmission method, comprising:

   The terminal determines the number of the scheduling information, where the scheduling information is located on the physical downlink control channel, and is used to indicate the data channel resource of the scheduled frequency resource on the scheduling frequency resource, where the scheduling information is an information domain in the downlink control information DCI or DCI. The quantity of the scheduling information is less than or equal to the maximum number of scheduling information, and the maximum number of scheduling information is determined according to the subcarrier spacing of the scheduled frequency resource and the subcarrier spacing of the scheduling frequency resource, or according to the scheduled frequency resource. The time domain unit length and the time domain unit length of the scheduling frequency resource are determined, or are determined according to the subcarrier spacing of the scheduled frequency resource, the subcarrier spacing of the scheduling frequency resource, and the first preset value, or are scheduled according to The time unit length of the frequency resource and the time unit length of the scheduling frequency resource and the first preset value are determined, where the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule;

   The terminal receives scheduling information on the scheduling frequency resource according to the determined number of scheduling information.
8. The method of claim 7, wherein the scheduling information is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units, the number of the one or more time domain units being less than Or equal to the number of maximum time domain units that the scheduling information indicated by the first preset value can be scheduled.
9. The method according to claim 7 or 8, wherein the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units;

   When the scheduling information indicates data channel resources of the scheduled frequency resources in the plurality of time domain units, the scheduled frequency resources in each of the plurality of time domain units independently carry the transport block, or all or The scheduled frequency resources in the partial time domain unit jointly bear the transport block.
10. The method according to any one of claims 7 to 9, wherein when the scheduling information is DCI, the DCI sent by the network device includes a first information field, and the first information field is used to indicate The number of DCIs sent by the network device; the terminal receiving scheduling information on the scheduling frequency resource according to the determined number of scheduling information, including: if the terminal is based on the first information in the received DCI The domain determines that the number of received DCIs is equal to the number of DCIs indicated by the first information domain, and stops receiving DCIs sent by the network device; or

    When the scheduling information is DCI, the DCI sent by the network device includes a first information field, where the first information field is used to indicate whether the number of DCIs sent by the network device is one or more; Receiving the scheduling information on the scheduling frequency resource, if the terminal determines that the number of DCIs sent by the network device is one according to the first information field in the received DCI, stopping receiving The DCI sent by the network device.
11. The method according to any one of claims 7 to 9, wherein when the scheduling information is an information field in a DCI, an information field is used to indicate a data channel of a scheduled frequency resource in a time domain unit. Resource

    An information field includes first indication information, and first indication information in an information field is used to indicate whether the scheduled frequency resource is an independent bearer transport block on the time domain unit or a scheduled frequency resource in other time domain units. Joint bearer transport block.
12. The method according to any one of claims 7 to 11, wherein the maximum value of the amount of scheduling information is determined according to the following manner, including:

    Determining a first ratio, if the first ratio is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the first ratio, if the first ratio is greater than 1 and greater than or equal to a first set value, the maximum value of the number of scheduling information is equal to the first set value, and if the first ratio is less than or equal to 1, the maximum value of the number of scheduling information is equal to 1, wherein The first set value is specified by the protocol or the system configuration; or,

    Determining a first ratio, if the first ratio is greater than 1, the maximum value of the scheduling information is equal to the first ratio, and if the first ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1; or,

    Determining a product of the first ratio and the second set value. If the product is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the product, if the product is greater than 1 and greater than or equal to The first set value, the maximum value of the scheduling information is equal to the first set value, and if the product is less than or equal to 1, the maximum value of the scheduling information is equal to 1, wherein Said first set value and said second set value are specified by agreement or system configuration; or

    Determining a second ratio, if the second ratio is greater than 1 and less than the first set value, the maximum number of the scheduling information is equal to the second ratio, if the second ratio is greater than 1 and greater than or equal to a first set value, the maximum value of the number of scheduling information is equal to the first set value, and if the second ratio is less than or equal to 1, the maximum value of the number of scheduling information is equal to 1, wherein The first set value is specified by the protocol or the system configuration; or,

    Determining a second ratio. If the second ratio is greater than 1, the maximum value of the scheduling information is equal to the second ratio. If the second ratio is less than or equal to 1, the maximum number of scheduling information is equal to 1;

    The first ratio is equal to a ratio of a subcarrier spacing of the scheduled frequency resource divided by a subcarrier spacing of the scheduling frequency resource, and is further divided by the first preset value, or the first ratio is equal to the scheduled frequency. The ratio of the time domain unit length of the resource divided by the time domain unit length of the scheduling frequency resource is further divided by the first preset value; the second ratio is equal to the first ratio equal to the scheduled The ratio of the subcarrier spacing of the frequency resource divided by the subcarrier spacing of the scheduling frequency resource, or the ratio of the second ratio equal to the time domain unit length of the scheduled frequency resource divided by the time domain unit length of the scheduling frequency resource Approximate integer.
13. A scheduling information transmission method, comprising:

    The network device determines the number of downlink control information DCI in one search space of the terminal;

    The network device sends the number of the DCI to the terminal, or sends indication information, where the indication information is used to indicate whether the number of DCIs in the one search space is one or more.
14. The method according to claim 13, wherein the DCI includes a first information field, the first information field is used to indicate the number of DCIs sent by the network device, or is used to indicate the one search. The number of DCIs in the space is one or more.
15. The method according to claim 13 or 14, wherein the DCI is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units, the number of the one or more time domain units The number of maximum time domain units that can be scheduled by the DCI indicated by the first preset value is less than or equal to, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.
16. The method according to claim 13 or 14, wherein the DCI is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units;

    When the DCI indicates a data channel resource of the scheduled frequency resource in the plurality of time domain units, the scheduled frequency resource in each time domain unit independently carries the transport block, or all or part of the plurality of time domain units The scheduled frequency resources in the time domain unit jointly bear the transport block.
17. A scheduling information transmission method, comprising:

    The terminal receives the number of DCIs sent by the network device or the indication information, where the indication information is used to indicate whether the number of DCIs in the one search space is one or more;

    The terminal receives the DCI in the one search space according to the number of the DCI or the indication information.
18. The method according to claim 17, wherein the DCI includes a first information field, the first information field is used to indicate the number of DCIs sent by the network device, and the terminal is according to the DCI. The quantity or indication information, receiving the DCI in the one search space, includes: if the terminal determines, according to the first information field in the received DCI, that the number of received DCIs is equal to the DCI indicated by the first information domain. Quantity, then stop receiving DCI in the one search space; or,

    The DCI includes a first information field, where the first information field is used to indicate whether the number of DCIs in the one search space is one or more; and the terminal is used according to the number of DCIs or indication information. Receiving the DCI in a search space includes: if the terminal determines, according to the first information field in the received DCI, that the number of DCIs sent by the network device is one, stopping receiving DCI in the one search space.
19. The method according to claim 17 or 18, wherein the DCI is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units, the number of the one or more time domain units The number of maximum time domain units that can be scheduled by the DCI indicated by the first preset value is less than or equal to, and the first preset value is used to determine the maximum number of time domain units that the scheduling information can schedule.
20. The method according to claim 17 or 18, wherein the DCI is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units;

    When the DCI indicates a data channel resource of the scheduled frequency resource in the plurality of time domain units, the scheduled frequency resource in each time domain unit independently carries the transport block, or all or part of the plurality of time domain units The scheduled frequency resources in the time domain unit jointly bear the transport block.
21. A scheduling information transmission device is used for a network device, and includes:

    a determining module, configured to determine a quantity of scheduling information of the terminal, where the scheduling information is located on a physical downlink control channel, where the data channel resource of the scheduled frequency resource is indicated on the scheduling frequency resource, where the scheduling information is downlink control information DCI or An information field in the DCI, the quantity of the scheduling information is less than or equal to a maximum number of scheduling information, and the maximum number of scheduling information is determined according to a subcarrier spacing of the scheduled frequency resource and a subcarrier spacing of the scheduling frequency resource, or It is determined according to the time domain unit length of the scheduled frequency resource and the time domain unit length of the scheduling frequency resource, or is determined according to the subcarrier spacing of the scheduled frequency resource, the subcarrier spacing of the scheduling frequency resource, and the first preset value. Or determining, according to the time unit length of the scheduled frequency resource and the time unit length of the scheduling frequency resource, and the first preset value, where the first preset value is used to determine a maximum time domain that the scheduling information can be scheduled. The number of units;

    And a sending module, configured to send scheduling information by using the scheduling frequency resource according to the determined number of scheduling information.
22. The apparatus according to claim 21, wherein the scheduling information is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units, the number of the one or more time domain units being less than Or equal to the number of maximum time domain units that the scheduling information indicated by the first preset value can be scheduled.
23. The apparatus according to claim 21 or 22, wherein the scheduling information is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units;

    When the scheduling information indicates data channel resources of the scheduled frequency resources in the plurality of time domain units, the scheduled frequency resources in each of the plurality of time domain units independently carry the transport block, or all or The scheduled frequency resources in the partial time domain unit jointly bear the transport block.
24. The device according to any one of claims 21 to 23, wherein when the scheduling information is DCI, the DCI sent by the network device includes a first information field, and the first information field is used to indicate The number of DCIs sent by the network device, or used to indicate whether the number of DCIs sent by the network device is one or more.
25. The apparatus according to any one of claims 21 to 23, wherein, when the scheduling information is an information field in a DCI, an information field is used to indicate a data channel of a scheduled frequency resource in a time domain unit. Resource

    An information field includes first indication information, and first indication information in an information field is used to indicate whether the scheduled frequency resource is an independent bearer transport block on the time domain unit or a scheduled frequency resource in other time domain units. Joint bearer transport block.
26. A scheduling information transmission device is provided for a terminal, and includes:

    a determining module, configured to determine a quantity of scheduling information, where the scheduling information is located on a physical downlink control channel, where the data channel resource of the scheduled frequency resource is indicated on the scheduling frequency resource, where the scheduling information is downlink control information DCI or DCI The information field, the quantity of the scheduling information is less than or equal to the maximum number of scheduling information, and the maximum number of scheduling information is determined according to the subcarrier spacing of the scheduled frequency resource and the subcarrier spacing of the scheduling frequency resource, or according to Determined by the time domain unit length of the scheduled frequency resource and the time domain unit length of the scheduling frequency resource, or determined according to the subcarrier spacing of the scheduled frequency resource, the subcarrier spacing of the scheduling frequency resource, and the first preset value, or The first preset value is used to determine the maximum time domain unit that can be scheduled by the scheduling information, according to the time unit length of the scheduled frequency resource and the time unit length of the scheduling frequency resource and the first preset value. Quantity

    And a receiving module, configured to receive scheduling information on the scheduling frequency resource according to the determined number of scheduling information.
27. The apparatus according to claim 26, wherein said scheduling information is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units, said number of one or more time domain units being less than Or equal to the number of maximum time domain units that the scheduling information indicated by the first preset value can be scheduled.
28. The apparatus according to claim 26 or 27, wherein the scheduling information is used to indicate a data channel resource of a scheduled frequency resource in one or more time domain units;

    When the scheduling information indicates data channel resources of the scheduled frequency resources in the plurality of time domain units, the scheduled frequency resources in each of the plurality of time domain units independently carry the transport block, or all or The scheduled frequency resources in the partial time domain unit jointly bear the transport block.
29. The device according to any one of claims 26 to 28, wherein when the scheduling information is DCI, the DCI sent by the network device includes a first information field, and the first information field is used to indicate The number of DCIs sent by the network device; the receiving module is specifically configured to: determine, according to the first information field in the received DCI, that the number of received DCIs is equal to the number of DCIs indicated by the first information domain, Stop receiving the DCI sent by the network device; or,

    When the scheduling information is DCI, the DCI sent by the network device includes a first information field, where the first information field is used to indicate whether the number of DCIs sent by the network device is one or more; And if: determining, according to the first information field in the received DCI, that the number of DCIs sent by the network device is one, stopping receiving the DCI sent by the network device.
30. The apparatus according to any one of claims 26 to 28, wherein, when the scheduling information is an information field in a DCI, an information field is used to indicate a data channel of a scheduled frequency resource in a time domain unit. Resource

    An information field includes first indication information, and first indication information in an information field is used to indicate whether the scheduled frequency resource is an independent bearer transport block on the time domain unit or a scheduled frequency resource in other time domain units. Joint bearer transport block.
31. A scheduling information transmission device is used for a network device, and includes:

    a determining module, configured to determine a quantity of downlink control information DCI in a search space of the terminal;

    And a sending module, configured to send the number of the DCI to the terminal, or send indication information, where the indication information is used to indicate whether the number of DCIs in the one search space is one or more.
32. The device according to claim 31, wherein the DCI includes a first information field, the first information field is used to indicate the number of DCIs sent by the network device, or is used to indicate the one search. The number of DCIs in the space is one or more.
33. A scheduling information transmission device is provided for a terminal, and includes:

    a first receiving module, configured to receive a quantity or indication information of a DCI sent by the network device, where the indication information is used to indicate whether the number of DCIs in the one search space is one or more;

    The second receiving module is configured to receive the DCI in the one search space according to the number of the DCI or the indication information.
34. The device according to claim 33, wherein the DCI includes a first information field, the first information field is used to indicate the number of DCIs sent by the network device, and the second receiving module is specifically used. If: determining, according to the first information field in the received DCI, that the number of received DCIs is equal to the number of DCIs indicated by the first information field, stopping receiving DCI in the one search space; or

    The DCI includes a first information field, where the first information field is used to indicate whether the number of DCIs in the one search space is one or more; and the second receiving module is specifically configured to: according to the received DCI The first information field determines that the number of DCIs sent by the network device is one, and stops receiving the DCI in the one search space.

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