CN109152072B

CN109152072B - Scheduling information transmission method and device

Info

Publication number: CN109152072B
Application number: CN201710459138.1A
Authority: CN
Inventors: 张长; 李俊超; 彭金磷; 汪凡
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2020-08-07
Anticipated expiration: 2037-06-16
Also published as: WO2018228500A1; CN109152072A

Abstract

The application discloses a scheduling information transmission method and device. In the method, the network equipment determines the quantity of the scheduling information of the terminal, and uses the scheduling frequency resource to send the scheduling information according to the determined quantity of the scheduling information. The scheduling information is located in a physical downlink control channel and is used for indicating a data channel resource of a scheduled frequency resource on the scheduled frequency resource, the scheduling information is DCI or an information field in the DCI, the number of the scheduling information is less than or equal to the maximum value of the number of the 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 scheduled frequency resource, or is determined according to the subcarrier interval of the scheduled frequency resource, the subcarrier interval of the scheduled frequency resource and a first preset value, or is determined according to the time domain unit length of the scheduled frequency resource, the time domain unit length of the scheduled frequency resource and the first preset value, and the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information. The method and the device can reduce the complexity of frequency resource scheduling.

Description

Scheduling information transmission method and device

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

Carrier Aggregation (CA) technology is introduced, multiple continuous or discontinuous component carriers can be aggregated for use through Carrier Aggregation, and in addition, the fifth Generation mobile communication next Generation Radio technology (5G NR) system also defines other frequency resources, such as partial Bandwidth (BP), which solves the requirement of mobile communication for large Bandwidth and improves utilization rate of scattered spectrum in a Radio band, the Carrier Aggregation technology of the long Term Evolution (L ong Term Evolution, L TE) system supports cross-Carrier scheduling, which refers to scheduling data channel resources of another component Carrier on one component Carrier.

In the 5G system, more services and richer spectrum resources need to be supported, so carrier aggregation and cross-carrier scheduling techniques continue to be adopted, and due to the introduction of BP, scheduling and feedback of cross-BP are also supported, but in the L TE system, the subcarrier spacing is fixed, in the 5G system, the subcarrier spacing may be different in different frequency bands in consideration of the fact that the difference between the radio propagation characteristic of the high frequency band and the radio transmission characteristic of the low frequency band is large, for example, the subcarrier spacing is 15khz in the low frequency band and 60khz in the high frequency band.

In the 5G system, the subcarrier interval is not fixed and unchanged any more, so that the cross-carrier or cross-BP scheduling scenes are more, and the complexity is higher.

Disclosure of Invention

The embodiment of the application provides a scheduling information transmission method and a scheduling information transmission device, which aim to reduce the complexity of frequency scheduling.

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

the network equipment determines the quantity of the scheduling information of the terminal and transmits the scheduling information by using the scheduling frequency resource according to the determined quantity of the scheduling information. Wherein the scheduling information is located in a Physical Downlink Control Channel (PDCCH) and is used for indicating data channel resources of scheduled frequency resources on the scheduled frequency resources, the scheduling information is Downlink Control Information (DCI) or an information field in the DCI, the number of the scheduling information is less than or equal to a maximum scheduling information number, and the maximum scheduling information number is determined according to subcarrier intervals of the scheduled frequency resources and subcarrier intervals of the scheduled frequency resources, or is determined according to time domain unit lengths of the scheduled frequency resources and time domain unit lengths of the scheduled frequency resources, or is determined according to subcarrier intervals of the scheduled frequency resources, subcarrier intervals of the scheduled frequency resources and a first preset value, or is determined according to time unit lengths of the scheduled frequency resources and the first preset value, the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information.

In the above scheme, a determination basis is given for the calculation of the maximum value of the number of the scheduling information, and the number of the scheduling information sent by the network device is less than or equal to the maximum value of the number of the scheduling information, so that the number of the scheduling information sent by the network device is limited, and the standardization and implementation complexity of the protocol can be simplified. The scheme can be applied to cross-frequency resource scheduling, and further can be applied to the condition that the subcarrier intervals of the scheduled frequency resources and the scheduled frequency resources are different under the cross-frequency resource scheduling scene, namely the protocol standardization and the implementation complexity can be simplified aiming at the condition that the subcarrier intervals of the scheduled frequency resources and the scheduled frequency resources are different under the cross-frequency resource scheduling scene.

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, and the number of the one or more time domain units is less than or equal to the number of the maximum time domain units that can be scheduled by the scheduling information indicated by the first preset value. Therefore, the number of the time domain units scheduled by the scheduling information sent by the network equipment does not exceed the maximum number of the time domain units which can be scheduled by the terminal, and the data transmission of the terminal can be ensured.

In one possible design, the scheduling information may be 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 scheduled frequency resources in a plurality of time domain units, the scheduled frequency resources in each time domain unit in the plurality of time domain units independently carry transmission blocks, or the scheduled frequency resources in all or part of the time domain units jointly carry transmission blocks.

By the scheme, when the network device schedules the transmission of a plurality of time domain units (such as subframes or time slots), each time domain unit in the plurality of time domain units can respectively correspond to one transmission block, or at least 2 time domain units in the plurality of time domain units correspond to one transmission block, so that the scheduling flexibility can be improved, and the existing protocol is expanded.

In one 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 to indicate whether the number of DCIs sent by the network device is one or multiple.

By the scheme, the network device can indicate the number of the DCIs transmitted by the network device to the terminal, so that the terminal can receive the DCI according to the number of the DCI indicated by the network device, for example, when the number of the DCI received by the terminal is equal to the number of the DCI indicated by the network device, the terminal can stop receiving the DCI (for example, stopping searching the DCI in the PDCCH search space), and thus, the processing overhead of the terminal can be saved, and further, the power consumption of the terminal can be saved. The network device may also indicate to the terminal whether the number of DCI transmitted by the network device is one or more, so that the terminal may receive DCI according to the indication. For example, when the terminal determines that the network device only sends one piece of DCI according to the indication, the terminal may stop searching after the DCI sent to the terminal is searched in the PDCCH search space, so that processing overhead of the terminal may be saved, and power consumption of the terminal may be saved.

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

By the scheme, when one piece of DCI is used for scheduling frequency resources, the network device may indicate, through the first indication information in the DCI, whether the scheduled frequency resources independently carry the transport block on the time domain unit or jointly carry the transport block with the scheduled frequency resources in other time domain units, so that the terminal may perform data transmission according to the indication.

In one possible design, the maximum value of the amount of scheduling information is determined according to the following ways, including:

determining a first ratio, wherein if the first ratio is greater than 1 and less than a first set value, the maximum value of the scheduling information quantity 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 quantity is equal to the first set value, if the first ratio is less than or equal to 1, the maximum value of the scheduling information quantity is equal to 1, wherein the first set value is specified by a protocol or configured by a system; alternatively, the first and second electrodes may be,

determining a first ratio, wherein if the first ratio is greater than 1, the maximum value of the scheduling information quantity is equal to the first ratio, and if the first ratio is less than or equal to 1, the maximum value of the scheduling information quantity is equal to 1; alternatively, the first and second electrodes may be,

determining a product of a first ratio and a second set value, if the product is greater than 1 and less than a first set value, the maximum value of the scheduling information quantity 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 quantity is equal to the first set value, if the product is less than or equal to 1, the maximum value of the scheduling information quantity is equal to 1, wherein the first set value and the second set value are specified by a protocol or configured by a system; alternatively, the first and second electrodes may be,

determining a second ratio, wherein if the second ratio is greater than 1 and smaller than a first set value, the maximum value of the scheduling information quantity 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 quantity is equal to the first set value, if the second ratio is less than or equal to 1, the maximum value of the scheduling information quantity is equal to 1, wherein the first set value is specified by a protocol or configured by a system; alternatively, the first and second electrodes may be,

determining a second ratio, wherein if the second ratio is greater than 1, the maximum value of the scheduling information quantity is equal to the second ratio, and if the second ratio is less than or equal to 1, the maximum value of the scheduling information quantity is equal to 1;

the first ratio is equal to a ratio obtained by dividing the subcarrier interval of the scheduled frequency resource by the subcarrier interval of the scheduled frequency resource and then dividing the ratio by the first preset value, or the first ratio is equal to an approximate integer obtained by dividing a ratio obtained by dividing the time domain unit length of the scheduled frequency resource by the time domain unit length of the scheduled frequency resource and then dividing the ratio by the first preset value; the second ratio is equal to the ratio of the subcarrier spacing of the scheduled frequency resource divided by the subcarrier spacing of the scheduled frequency resource, or the second ratio is equal to an 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 scheduled frequency resource.

The scheme provides several possible methods for determining the maximum value of the scheduling information quantity, and the technology is simple to realize, so that the protocol standardization and the realization complexity can be simplified aiming at the frequency resource scheduling scene.

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

and the terminal determines the quantity of the scheduling information and receives the scheduling information on the scheduling frequency resource according to the determined quantity of the scheduling information. Wherein the scheduling information is located in a Physical Downlink Control Channel (PDCCH) and is used for indicating data channel resources of scheduled frequency resources on the scheduled frequency resources, the scheduling information is Downlink Control Information (DCI) or an information field in the DCI, the number of the scheduling information is less than or equal to a maximum scheduling information number, and the maximum scheduling information number is determined according to subcarrier intervals of the scheduled frequency resources and subcarrier intervals of the scheduled frequency resources, or is determined according to time domain unit lengths of the scheduled frequency resources and time domain unit lengths of the scheduled frequency resources, or is determined according to subcarrier intervals of the scheduled frequency resources, subcarrier intervals of the scheduled frequency resources and a first preset value, or is determined according to time unit lengths of the scheduled frequency resources and the first preset value, the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information.

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, and the number of the one or more time domain units is less than or equal to the number of the maximum time domain units that can be scheduled by the scheduling information indicated by the first preset value.

In one 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; the terminal receives scheduling information on the scheduling frequency resource according to the determined quantity of the scheduling information, and the method comprises the following steps: if the terminal determines that the number of the received DCI is equal to the DCI number indicated by the first information field according to the first information field in the received DCI, stopping receiving the DCI sent by the network equipment; alternatively, the first and second electrodes may be,

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 multiple; the terminal receives scheduling information on the scheduling frequency resource according to the determined quantity of the scheduling information, and the method comprises the following steps: and if the terminal determines that the number of the DCI sent by the network equipment is one according to the first information field in the received DCI, stopping receiving the DCI sent by the network equipment.

In one possible design, when the scheduling information is an information field in DCI, one information field is used to indicate a data channel resource of a scheduled frequency resource in one time domain unit; the first indication information in one information field is used for indicating whether the scheduled frequency resource independently carries the transmission block on the time domain unit or jointly carries the transmission block with the scheduled frequency resource in other time domain units.

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

the network equipment determines the number of downlink control information DCI in a search space of the terminal; and the network equipment transmits the DCI number to the terminal or transmits indication information, wherein the indication information is used for indicating whether the DCI number in the search space is one or more.

In the above scheme, the network device may determine the number of DCIs in one search space of the terminal, and send the information related to the determined number of DCIs to the terminal, so that the terminal may receive the DCIs according to the indication. For example, when the network device transmits the number of DCIs to the terminal, and when the number of DCIs received by the terminal is equal to the number of DCIs transmitted by the network device, the search for the DCIs in the search space may be stopped, so that the processing overhead of the terminal may be saved, and the power consumption of the terminal may 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 the DCIs in the one search space is one, the terminal may stop the search after the PDCCH search space searches for the DCI sent to the terminal, so that the processing overhead of the terminal may be saved, and the power consumption of the terminal may be saved.

In one possible design, the number of DCIs in one search space determined by the network device is the DCI used to indicate the data channel resources of the scheduled frequency resource on the scheduling frequency resource in the search space, that is, the DCI used for scheduling across frequency resources. Further, in a cross-frequency resource scheduling scenario, the subcarrier spacing of the scheduling frequency resource and the scheduled frequency resource may not be the same.

In the above scheme, for a cross-frequency resource scheduling scenario, the network device sends the relevant information of the number of the DCI for cross-frequency resource scheduling to the terminal, so that the terminal can receive the DCI according to the indication.

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

In one possible design, the DCI is configured to indicate a data channel resource of a 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 number of the largest time domain units that the DCI can schedule, which is indicated by a first preset value, and the first preset value is used to determine the number of the largest time domain units that the scheduling information can schedule.

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

In a fourth aspect, a method for transmitting scheduling information is provided, including:

and the terminal receives the DCI number or the indication information sent by the network equipment and receives the DCI in the search space according to the DCI number or the indication information. Wherein the indication information is used for indicating whether the number of DCIs in the one search space is one or more.

In one possible design, the DCI includes a first information field, where the first information field is used to indicate a number of DCIs transmitted by the network device; the terminal receives the DCI in the search space according to the DCI number or the indication information, and the method comprises the following steps: if the terminal determines that the number of the received DCI is equal to the DCI number indicated by the first information field according to the first information field in the received DCI, stopping receiving the DCI in the search space; alternatively, the first and second electrodes may be,

the DCI comprises a first information field, wherein the first information field is used for indicating whether the number of DCIs in the one search space is one or more; the terminal receives the DCI in the search space according to the DCI number or the indication information, and the method comprises the following steps: and if the terminal determines that the number of the DCI sent by the network equipment is one according to the first information field in the received DCI, stopping receiving the DCI in the search space.

In a fifth aspect, a scheduling information transmission apparatus is provided, where the apparatus is used for a network device, and the apparatus has a function of implementing the network device in the first aspect or any one of the possible designs of the first aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible design, the structure of the apparatus includes a determining module and a sending module, and these modules may perform corresponding functions in the first aspect or any one of the possible designs of the first aspect, for which specific reference is made to detailed descriptions in method examples, which are not described herein again.

In one possible design, the apparatus structurally includes a communication interface, a processor, and a memory, where the communication interface is configured to transmit and receive data, and the processor is configured to support the processing device to perform a corresponding function in any one of the above first aspect and the first possible design. The memory is coupled to the processor and holds the program instructions and data necessary for the processor.

A sixth aspect provides a scheduling information transmission apparatus for a terminal having a function of implementing the terminal in the second aspect or any one of the possible designs of the second aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible design, the structure of the apparatus includes a determining module and a receiving module, and these modules may perform corresponding functions in any one of the above second aspect and the second aspect, for which specific reference is made to the detailed description in the method example, which is not described herein again.

In one possible design, the apparatus includes a communication interface, a processor, and a memory, where the communication interface is configured to transmit and receive data, and the processor is configured to support the processing device to perform corresponding functions in any one of the second aspect and the second aspect. The memory is coupled to the processor and holds the program instructions and data necessary for the processor.

In a seventh aspect, there is provided a scheduling information transmission apparatus for a network device, where the apparatus has a function of implementing the network device in any one of the possible designs of the third aspect or the third aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible design, the structure of the apparatus includes a determining module and a sending module, and these modules may execute corresponding functions in any one of the above third aspect and the possible design of the third aspect, for which specific reference is made to detailed descriptions in method examples, which are not described herein again.

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

In an eighth aspect, there is provided a scheduling information transmission apparatus for a terminal, the apparatus having a function of implementing the terminal in any one of the possible designs of the fourth aspect or the fourth aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible design, the structure of the apparatus includes a first receiving module and a second receiving module, and these modules may perform corresponding functions in any one of the above-mentioned fourth aspect or the fourth aspect, for specific reference, detailed descriptions in method examples are given, and details are not repeated here.

In one possible design, the apparatus includes a communication interface, a processor, and a memory, where the communication interface is configured to transmit and receive data, and the processor is configured to support the processing device to perform the corresponding functions in any one of the above-mentioned fourth aspect and the fourth aspect. The memory is coupled to the processor and holds the program instructions and data necessary for the processor.

In a ninth aspect, there is provided a computer readable storage medium storing computer software instructions for performing the functions designed in any one of the above aspects and any one of the above aspects, including a program designed for performing the method designed in any one of the above aspects and any one of the above aspects.

A tenth aspect provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the above aspects.

Drawings

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

FIG. 2 is a schematic diagram of non-adopted cross-carrier scheduling and cross-carrier scheduling in the embodiment of the present application;

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

fig. 4A and fig. 4B are schematic diagrams respectively illustrating that the subcarrier intervals of a scheduling carrier and a scheduled carrier in cross-carrier scheduling are different in the embodiment of the present application;

fig. 5 is a schematic diagram illustrating a scheduling information transmission process performed by a network device according to an embodiment of the present application;

fig. 6 is a schematic diagram illustrating a mapping relationship between a subframe and a transport block when multi-subframe joint scheduling is performed through multiple DCIs in the embodiment of the present application;

fig. 7 is a schematic diagram illustrating a mapping relationship between time slots and transport blocks when performing multi-slot joint scheduling through multiple information fields in DCI in the embodiment of the present application;

fig. 8 is a schematic diagram illustrating a scheduling information transmission flow performed by a terminal according to an embodiment of the present application;

fig. 9 is a schematic diagram of a scheduling information transmission flow executed by a network device according to another embodiment of the present application;

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

fig. 11 is a schematic structural diagram of a scheduling information transmitting apparatus according to an embodiment of the present application;

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

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

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

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

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

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

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

Detailed Description

Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding 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.

(2) In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

(3) "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

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

Fig. 1 schematically illustrates a possible communication scenario provided by an embodiment of the present application. As shown in fig. 1, a terminal 110 accesses a wireless network through a Radio Access Network (RAN) node 120 to acquire a service of an external network (e.g., the internet) through the wireless network or to communicate with other terminals through the wireless network.

Among them, a terminal is also called User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., and is a device providing voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, etc. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and the like.

Some RAN nodes are exemplified by a gNB, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (wireless fidelity ) access point (access point, AP), etc. at present, some RAN nodes may include a centralized unit (RAN) that centralizes a terminal to a wireless network, and the remaining functions of the RAN nodes may be distributed in a centralized structure of nodes (eNB, CU), CU, etc. in a network structure, the RAN nodes may include a centralized unit (Node B, CU, etc. the remaining functions of the centralized protocol layer (pdu) may be controlled by a Node B, CU, etc. in a network structure, the nodes may be distributed by a centralized layer of the Node B, RNC, or a distributed system of nodes (eNB, CU, and/or a remote layer control unit (pdu).

The network architecture described in the embodiment of the present application is for more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation to the technical solution provided in the embodiment of the present application, and it is known by a person skilled in the art that as the network architecture evolves, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

The embodiment of the application provides a scheduling information transmission method and a device based on the method. The network device may be a RAN node or base station. The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

In the embodiment of the application, the network equipment determines the quantity of the scheduling information of the terminal, and sends the scheduling information to the terminal equipment by using the scheduling frequency resource according to the determined quantity of the scheduling information. The scheduling information is located in the physical downlink control channel and is used for indicating the data channel resources of the scheduled frequency resources on the scheduling carrier, and the terminal can acquire the data channel resources of the scheduled frequency resources according to the scheduling information received from the scheduling frequency resources and perform data transmission on the scheduled frequency resources.

The embodiment of the present application does not limit the type of the frequency resource, for example, the frequency resource may be a carrier or a partial Bandwidth (BP). Taking a 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 a scheduling carrier and a scheduled carrier as examples, and it should be understood that the principles of the embodiments of the present application can be applied to other resource scheduling granularity cases.

The Physical Downlink control Channel may be a pdcch (Physical Downlink control Channel), and the data Channel may include a Physical Downlink Shared Channel (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 data channel resources of a scheduled carrier. The information field used for indicating the data resource of the scheduled carrier in the DCI may be one or more (the specific number is determined by the network device), where one information field may schedule one or more Hybrid Automatic Repeat reQuest (HARQ) processes, and one HARQ process corresponds to one time domain unit. The DCI is downlink control information sent to the terminal by the network device, which may include uplink and downlink resource allocation, HARQ information, power control, and the like, and may be sent by being carried on the PDCCH. One time domain unit may be one subframe (subframe), one slot (slot), one micro slot (mini-slot), or the like.

In an example, CC1 represents a scheduling carrier, CC2 represents a scheduled carrier, and a network device transmits DCI to a terminal through a PDCCH of CC1, where the DCI includes PDSCH resource indication information on CC2, and indicates a PDCCH time-frequency resource location on CC2 allocated to the terminal for the terminal to receive data transmitted by the network device on the indicated PDCCH on CC 2. In another example, CC1 indicates a scheduling carrier, CC2 indicates a scheduled carrier, and the network device transmits DCI to the terminal through PDCCH of CC1, where the DCI includes PUSCH resource indication information on CC2, and the indication information indicates a PUSCH time-frequency resource position on CC2 allocated to the terminal for use, so that the terminal can transmit data to the network device on the indicated PUSCH on CC 2.

The 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 without adopting cross-carrier scheduling (i.e., the scheduling carrier and the scheduled carrier are the same carrier), and (b) in fig. 2 shows a schematic diagram of cross-carrier scheduling (i.e., the scheduling carrier and the scheduled carrier are different carriers), it can be seen that, in cross-carrier scheduling, a PDCCH on one carrier may indicate PDSCH resources on other carriers. Under the condition that the scheduling carrier and the scheduled carrier are different carriers, the embodiment of the application provides a scheduling information transmission method for realizing cross-carrier scheduling aiming at a cross-carrier scheduling scene.

In the example of cross-carrier scheduling shown in fig. 3, one macro base station cell (corresponding to macro cell in the figure) and one small base station cell (corresponding to small cell in the figure) share 2 downlink carriers: CC1 and CC 2. All 2 component carriers of the smallcell 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 a macro cell on CC1 interferes with CC1 of a small cell. Thus, on smallcell, PDSCH resources on CC1 are cross-carrier scheduled using PDCCH on CC 2; on a macro cell, PDSCH resources on CC2 are cross-carrier scheduled using PDCCH on CC 1.

Further, in the cross-carrier scheduling scenario, 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 a high frequency band, the subcarrier spacing is 15KHz, the scheduled carrier (shown as CC2 in the figure) is located in a low frequency band, and the subcarrier spacing is 60KHz, the network device sends scheduling information through the PDCCH on CC1 to indicate the resources of the PDSCH and/or PUSCH on CC2 (such as the time slot where the PDSCH and/or PUSCH is located and the frequency domain position where the PDSCH and/or PUSCH is located). In another example, as shown in fig. 4B, the scheduling carrier (shown as CC1) is located in the high band, the subcarrier spacing is 15KHz, the scheduled carrier (shown as CC2) is located in the low band, the subcarrier spacing is 30KHz, and the network device sends scheduling information through PDCCH on CC1 to indicate the resources of PDSCH and/or PUSCH on CC2 (such as the time slot where PDSCH and/or PUSCH is located and the frequency domain location where PDSCH and/or PUSCH is located).

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

The first preset value is used for indicating the number of the maximum time domain units that the scheduling information can schedule, and the first preset value can represent the joint scheduling capability of the terminal. The first preset value of the terminal may be different for scheduled carriers with different subcarrier spacing. The time domain unit may be a subframe or a slot, and accordingly, the first preset value is used to indicate a maximum number of subframes that the scheduling information can schedule, for example, in a case that the subcarrier spacing of the scheduled carrier CC2 is 15Khz, the first preset value of the terminal is equal to 1, which indicates that the data channel resource on the scheduled carrier CC2 in at most 1 subframe can be scheduled for the terminal on the scheduling carrier CC 1. The first preset value may also be used to indicate the maximum number of time slots that the scheduling information can schedule, for example, in case that the subcarrier spacing of the scheduled carrier CC2 is 15Khz, the first preset value of the terminal is equal to 2, which indicates that the data channel resources on the scheduled carrier CC2 in 2 time slots at most can be scheduled for the terminal on the scheduled carrier CC 1. The first preset value of the terminal is appointed by a system or reported to the network equipment by the terminal.

In other embodiments, the time domain unit lengths on different carriers may be different. For example, a time domain unit (in this example, one time domain unit is described as one time slot) on a Frequency resource corresponding to a 15KHz carrier includes 7 Orthogonal Frequency Division Multiplexing (OFDM) symbols, and the length of the time slot is 0.5 ms; a time domain unit (in this example, one time domain unit is described as one time slot) on the frequency resource corresponding to the 60HKz carrier contains 14 OFDM symbols, and the length of the time slot is 0.25 ms. In this case, if the time domain unit lengths of the scheduling carrier and the scheduled carrier are different, the maximum value of the amount 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 according to the time domain unit length of the scheduled carrier and the time domain unit length of the scheduling carrier and the first preset value. One time domain unit may be one subframe (subframe), one slot (slot), one micro slot (mini-slot), or the like.

In the embodiment of the present application, when determining the maximum value of the amount of scheduling information, the maximum value may be determined according to a size relationship between the subcarrier spacing of the scheduling carrier and the subcarrier spacing of the scheduled carrier (for example, the size relationship may be represented by a ratio of the subcarrier spacing of the scheduled carrier divided by the subcarrier spacing of the scheduling carrier). In another example, the time domain unit lengths on different carriers may be different, and when determining the maximum value of the amount of scheduling information, the maximum value may be determined according to a size relationship of the time domain unit lengths of the scheduling carrier and the scheduled carrier (for example, the size relationship is expressed by a ratio of the time slot length of the scheduling carrier divided by the time slot length of the scheduled carrier, or the time slot length of the scheduled carrier divided by the time domain length of the scheduling carrier).

Based on the above principle of determining the maximum value of the amount of scheduling information, several methods for determining the maximum value of the amount of scheduling information provided by the embodiments of the present application are exemplarily shown below.

The method comprises the following steps: and determining a first ratio, wherein the first ratio is equal to a ratio obtained by dividing the subcarrier interval of the scheduled frequency resource by the subcarrier interval of the scheduled frequency resource and then dividing the ratio by the first preset value, or the first ratio is equal to an approximate integer obtained by dividing a ratio obtained by dividing the time domain unit length of the scheduled frequency resource by the time domain unit length of the scheduled frequency resource and then dividing the ratio by the first preset value. If the first ratio is greater than 1 and less than a first set value, the maximum value of the 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 number of the 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 the scheduling information is equal to 1. The first setting value represents the maximum value of the quantity of scheduling information allowed to be transmitted on the scheduling carrier, and can 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: for the scheduled carrier, the maximum value of the number of scheduling information for all terminals or part of terminals (including a specific terminal) on the scheduled carrier is b is an integer greater than or equal to 1. The value of b may be defined by a protocol or configured by a System, for example, may be configured by a System Information Block (SIB) or a Radio Resource Control (RRC) message. N represents a first preset value, which is used to represent the joint scheduling capability of the terminal on the scheduling carrier, where 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 table and the max () function is used to return the maximum value in the given parameter table.

In the formula (1), the first and second groups,

alternatively, the first and second electrodes may be,

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

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

b is 4, for the scheduled carrier with subcarrier spacing of 15KHz, the first preset value for characterizing the terminal multi-subframe joint scheduling capability is equal to 1, for the scheduled carrier with subcarrier spacing of 60KHz,the first preset value for representing the multi-subframe joint scheduling capability of the terminal is equal to 2. In the case of carrier scheduling at a subcarrier spacing of 15KHz, a carrier at a subcarrier spacing of 60KHz is scheduled, according to the above formula (1), where M is 4, N is 2, and K is 2, which means that only two pieces of scheduling information are carried at most in the PDCCH of the scheduled carrier (for example, 2 pieces of DCI at most, or one piece of DCI is carried and 2 pieces of information fields indicating data channel resources of the scheduled carrier are included in the DCI). In the case of carrier scheduling at a subcarrier spacing of 60KHz, a carrier at a subcarrier spacing of 15KHz is scheduled, according to the above formula (1), where M is 1/4, N is 1, and K is 1, which means that only one piece of scheduling information is carried on the PDCCH of the scheduled carrier at most (for example, 1 piece of DCI at most, or an information field carrying one piece of DCI and including 1 piece of information used to indicate the data channel resources of the scheduled carrier at most).

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

a time domain unit (in this example, one time domain unit is described as one time slot) on the frequency resource corresponding to the 4, 15KHz carrier contains 7 OFDM symbols, and the length of the time slot is 0.5 ms; a time domain unit (in this example, one time domain unit is described as one timeslot) on a frequency resource corresponding to a 60HKz carrier contains 14 OFDM symbols, the length of the timeslot is 0.25ms, and first preset values for characterizing maximum multi-subframe joint scheduling capability of terminals on 15KHz and 60KHz carriers are respectively equal to 1 and 2 (that is, when the 15KHz carrier is a scheduled carrier, N is 1, and when the 60KHz carrier is a scheduled carrier, N is 2); when the 60KHz subcarrier schedules the 15KHz subcarrier, M is 0.25/0.5 is 1/2, M/N is 1/2, and K is 1, that is, only one DCI is carried in the PDCCH search space at most; when a 60KHz carrier is scheduled by a 15KHz carrier, a value is taken for (0.5ms/0.25ms), and the calculation result is that M is 2, M/N is 1, and K is 2, that is, only one piece of DCI is carried in the PDCCH search space at most.

The method 2 comprises the following steps: a first ratio is determined, which is calculated in the same way as method 1. If the first ratio is greater than 1, the maximum value of the amount of the scheduling information is equal to the first ratio, and if the first ratio is less than or equal to 1, the maximum value of the amount of the scheduling information is equal to 1.

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

K＝max(1,M/N)……………………………………(2)

wherein the content of the first and second substances,

alternatively, the first and second electrodes may be,

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

The method 3 comprises the following steps: and determining the product of a first ratio and a second set value, wherein the first ratio is equal to the second ratio of the subcarrier interval of the scheduled carrier to the subcarrier interval of the scheduled carrier divided by the number of the maximum time domain units indicated by the first set value. If the product is greater than 1 and less than a first set value, the maximum value of the 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 number 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 number of the scheduling information is equal to 1. Wherein the value and meaning of the first set value are the same as in method 1. The second setting value represents a maximum value of the number of subframes allowing joint scheduling on the scheduling carrier, which may be specified by a protocol or configured by a system.

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

K＝min(b,max(1,L*M/N))……………………………(3)

wherein the content of the first and second substances,

in the formula (3), the values and meanings of b and N are the same as those of the formulas (1) and (L), and the value L is an integer greater than or equal to 1.

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

Method 4

In the method, a second ratio is determined, where the second ratio is equal to a ratio obtained by dividing a subcarrier interval of a scheduled frequency resource by a subcarrier interval of a scheduled frequency resource, or the second ratio is equal to an approximate integer of a ratio obtained by dividing a time domain unit length of the scheduled frequency resource by a time domain unit length of the scheduled frequency resource. If the second ratio is greater than 1 and smaller than a first set value, the maximum value of the scheduling information quantity 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 quantity is equal to the first set value, if the second ratio is less than or equal to 1, the maximum value of the scheduling information quantity is equal to 1, wherein the first set value is specified by a protocol or configured by a system.

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

K＝min(b,max(1,M))

in the formula (4), the value and meaning of b are the same as those of the formula (1), and the calculation formula of M is the related explanation in the formula (1).

Method 5

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

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

K＝max(1,M)

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

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

s501: the network equipment determines the quantity of scheduling information of the terminal, wherein the scheduling information is positioned in a physical downlink control channel and used for indicating data channel resources of a scheduled carrier on the scheduled carrier, and the quantity of the scheduling information is less than or equal to the maximum value of the quantity of the scheduling information.

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

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

In S501, the network device may determine the amount of scheduling information of the terminal according to the data transmission condition of the terminal and/or the channel quality of the terminal, and ensure that the determined amount of scheduling information is less than or equal to the maximum value of the amount of scheduling information. Taking the scheduling of downlink transmission of a terminal as an example, a base station may determine to specifically use several DCIs for scheduling downlink transmission of several slots for the terminal according to the data size of the terminal and a Channel Quality Indicator (CQI), and when a large amount of data for the terminal arrives, the base station may determine to use up time domain resources on 60KHz subcarriers according to user data of the terminal, thereby determining to send 2 DCIs, each DCI Indicator occupies 2 slots corresponding to 60KHz subcarriers. When the data amount for the terminal is small, the base station determines to transmit 1 piece of DCI to indicate that 1 or 2 slots corresponding to 60KHz sub-carriers are occupied.

Further, when inter-carrier cross-carrier scheduling is performed at different subcarrier intervals, the basic time unit for scheduling may be determined by the scheduling carrier or the scheduled carrier, on which the basic time unit is longer. For example, when cross-carrier scheduling is performed on a 15KHz subcarrier and a 60KHz subcarrier, a timeslot on the 15KHz subcarrier is denoted as a ms (e.g., a ═ 0.5ms), a timeslot on the 60KHz subcarrier corresponds to b ms, and b ═ a/4 (e.g., b ═ 0.125ms), so that the time slot length of cross-carrier scheduling is ams.

S502: and the network equipment transmits the scheduling information by using the scheduling carrier according to the determined quantity of the scheduling information.

Based on the above procedure, in S501, the network device may determine the amount of DCI in one search space of the terminal, and in S502, the network device may transmit DCI to the terminal in the search space, where the PDCCH search space in this embodiment is consistent with search space definitions on PDCCH or CORESET discussed in L TE and NR.

Wherein the scheduling information may indicate data channel resources of the scheduled carrier in one or more time domain units, as described in the previous embodiments. Optionally, the number of the one or more time domain units is less than or equal to the number of the largest time domain units that can be scheduled by the scheduling information, which is indicated by the first preset value for characterizing the joint scheduling capability of the terminal. For example, in the case that the time domain unit is a subframe, one DCI may indicate data channel resources of a scheduled carrier in one or more subframes, and if the time domain unit is a plurality of subframes, the number of the plurality of subframes is less than or equal to the maximum number of subframes indicated by a first preset value for characterizing a multi-subframe joint scheduling capability. For another example, when the time domain unit is a time slot, one DCI may indicate data channel resources of a scheduled carrier in one or more time slots, and if the time slot is multiple time slots, the number of the multiple time slots is less than or equal to the maximum number of time slots indicated by the first preset value for characterizing the multi-slot joint scheduling capability.

Optionally, when the scheduling information indicates data channel resources of scheduled carriers in multiple time domain units, the scheduled carriers in each time domain unit in the multiple time domain units independently carry transport blocks, or the scheduled carriers in all or part of the time domain units jointly carry transport blocks.

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

Fig. 6 exemplarily shows a mapping relationship between subframes and transport blocks when multi-subframe joint scheduling is performed through a plurality of DCIs. As shown, the network device may indicate data channel resources of a scheduled carrier on X (X is an integer greater than 1) subframes through n (n is an integer greater than or equal to 1) DCIs. The first subframe and the second subframe jointly bear a first transmission block, and the Xth subframe independently bears a Yth transmission block. One DCI may indicate data channel resources of a scheduled carrier in one or more subframes. It can be seen that mapping and transmission of Y transport blocks over X subframes can be indicated by one or more DCIs, where X >1, there is no limit to Y, nor to the relationship of X and Y.

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

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

Further, in case that the scheduling information is an information field in DCI, one information field may be used to indicate data channel resources of a scheduled carrier in one time domain unit. The first indication information in one information field may be included to indicate whether the scheduled carrier carries the transport block independently on the time domain unit or jointly with the scheduled carrier in other time domain units. 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 in the second time slot, and the first indication information included in the information field n is used to indicate that the scheduled carrier jointly carries the yth TB with other time slots in the x-1 th time slot.

Optionally, in a case that the scheduling information is DCI, the network device includes a first information field in the transmitted DCI, where the first information field is used to indicate whether the number of DCIs transmitted by the network device is one or multiple. The length of the first information field may be 1 bit, but may be more bits. For example, a bit sequence carried in the first information field takes a value of 0 to indicate that the network device transmits one DCI, and the bit sequence takes a value of 1 to indicate that the network device transmits a plurality of DCIs. In this way, if the terminal determines that the number of the received DCI is equal to the DCI number indicated by the first information field according to the first information field in the received DCI, the terminal stops receiving the DCI sent by the network device, for example, stops continuously searching the DCI in the current PDCCH search space, so that the processing overhead of the terminal can be saved, and the power supply overhead of the terminal can be saved.

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

One bit, K represents the maximum value of the DCI number,

meaning rounding up. For example, the maximum value of the DCI number is 4, in this case, the number of DCIs transmitted 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, the network device transmits 1 DCI, if the bit sequence is 01, the network device transmits 2 DCIs, if the bit sequence is 10, the network device transmits 3 DCIs, and if the bit sequence takes a value of 11, the network device transmits 4 DCIs. In this way, if the terminal determines that the number of the DCI transmitted by the network device is one according to the first information field in the received DCI, the terminal may stop receiving the DCI transmitted by the network device, for example, stop searching for the DCI continuously in the current PDCCH search space, so that processing overhead of the terminal may be saved, and power supply overhead of the terminal may be saved.

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

s801: the terminal determines the amount of scheduling information. The scheduling information is located in a physical downlink control channel and used for indicating data channel resources of a scheduled carrier on the scheduled carrier, the scheduling information is DCI or an information field in the DCI, and the number of the scheduling information is less than or equal to the maximum value of the number of the scheduling information.

The maximum value of the amount of the scheduling information can be determined according to the subcarrier interval of the scheduled carrier and the subcarrier interval of the scheduling carrier, or according to the subcarrier interval of the scheduled carrier, the subcarrier interval of the scheduling carrier, and a first preset value for representing the joint scheduling capability. The specific determination method is as described in the foregoing embodiments, and is not repeated here.

It should be noted that, the technical terms involved in the above-mentioned flow shown in fig. 8 have the same meanings as those explained in the foregoing embodiment, for example, the physical downlink control channel may be a PDCCH, and the data channel may be a PDSCH and/or a PUSCH. It should be noted that the content, structure and mapping relationship with the transport block of the DCI transmitted by the network device or the information field contained in the DCI may be the same as those in the foregoing embodiments, and are not repeated here. The present process does not limit how the network device determines the number of the DCI or the number of the information fields included in the DCI, and the network device may determine the number of the DCI or the number of the information fields included in the DCI by using the manner described in the foregoing embodiments, or may determine the number by using other methods.

S802: and the terminal receives the scheduling information on the scheduling carrier according to the determined quantity of the scheduling information.

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

Optionally, in a case that the scheduling information is DCI, in an example based on the foregoing procedure, the DCI may include a first information field, where the first information field is used to indicate a number of DCIs transmitted by the network device. In S802, if the terminal determines, according to the first information field in the received DCI, that the number of the received DCI is equal to the DCI number indicated by the first information field, 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, so as to save processing overhead of the terminal and further save power supply overhead.

Optionally, in a case that the scheduling information is DCI, in another example based on the foregoing procedure, the DCI may include a first information field, where the first information field is used to indicate whether the number of DCIs transmitted by the network device is one or multiple. In S802, if the terminal determines that the number of the DCI transmitted by the network device is one according to the first information field in the received DCI, the terminal may stop receiving the DCI transmitted by the network device, that is, stop searching for the DCI in the PDCCH search space of the scheduling carrier, so as to save processing overhead of the terminal and further save power supply overhead.

The other embodiment of the application also provides a scheduling information transmission method and a device based on the method, wherein the device comprises network equipment and a terminal. The network device may be a RAN node or base station. The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

Fig. 9 exemplarily shows a scheduling information transmission procedure implemented at a network device side according to an embodiment of the present application, where the procedure is described by taking a scheduling carrier and a scheduled carrier as an example, but is applicable to other frequency resource categories, such as BP. As shown, the process may include:

the network device determines the number of downlink control information DCI in a search space of the terminal S901, where the PDCCH search space in this embodiment is consistent with search space definitions on the PDCCH or the CORESET discussed in L TE and NR.

The network device may determine the number of the DCI according to the method described in the foregoing embodiment, and may also determine the number of the DCI by using other methods, which is not limited by this flow.

S902: and the network equipment sends the determined DCI number or indication information to the terminal, wherein the indication information is used for indicating whether the DCI number in the search space is one or more.

In one example based on the above procedure, in S901, the network device determines the number of DCI in one search space, where the DCI is used to indicate data channel resources of a scheduled carrier on the scheduled carrier. In S902, the network device transmits DCI using a scheduling carrier, where the DCI includes a first information field, and the first information field is used to indicate a number of the DCI, or to indicate whether the number of DCI transmitted by the network device is one or multiple. The scheduling carrier and the scheduled carrier may be the same carrier or different carriers. Further, if the scheduled carrier and the scheduled carrier are different carriers, the subcarrier intervals of the scheduled carrier and the scheduled carrier may be the same or different.

The PDCCH search space in this embodiment is consistent with search space definitions on PDCCH or CORESET discussed in L TE and NR.

Optionally, in the flow shown in fig. 9, the DCI transmitted by the network device includes a first information field, where the first information field is used to indicate the number of DCIs transmitted by the network device, or is used to indicate whether the number of DCIs in one or multiple search spaces.

Optionally, in the process shown in fig. 9, the DCI sent by the network device may be used to indicate data channel resources of a scheduled carrier 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 number of the largest time domain units that the DCI can schedule, which is indicated by the first preset value.

Alternatively, in the flow shown in fig. 9, DCI transmitted by a network device may be used to indicate data channel resources of a scheduled carrier in one or more time domain units; when the DCI indicates data channel resources of scheduled carriers in a plurality of time domain units, the scheduled carriers in each time domain unit in the plurality of time domain units independently carry transport blocks, or the scheduled carriers in all or part of the time domain units jointly carry transport blocks.

It should be noted that, the technical terms involved in the above-mentioned flow shown in fig. 9 have the same meanings as those explained in the foregoing embodiment, for example, the physical downlink control channel may be a PDCCH, and the data channel may be a PDSCH and/or a PUSCH. As another example, the time domain unit may be a subframe or a slot.

As can be seen from the process shown in fig. 9, after the network device determines the number of the DCIs, the determined number of the DCIs is sent to the terminal, or the indication information related to the DCI number is sent, so that the terminal can receive the DCI according to the number of the DCIs sent by the network device or the indication information, for example, when it is determined that the received DCI number is equal to the DCI number sent by the network device, the terminal can stop searching for the DCI in the PDCCH space, so that the processing overhead of the terminal can be saved, and further, the power supply overhead of the terminal can be saved.

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

s1001, the terminal receives the number of DCIs or indication information sent by the network device, wherein the indication information is used for indicating whether the number of DCIs in the one search space is one or more, and the PDCCH search space in the embodiment is consistent with search space definitions on PDCCH or CORESET discussed in L TE and NR.

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

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

Optionally, in an example based on the foregoing procedure, the DCI may include a first information field, where the information field is used to indicate the number of DCIs transmitted by the network device. In S1002, if the terminal determines, according to the first information field in the received DCI, that the number of the received DCI is equal to the DCI number indicated by the first information field, 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, so as to save processing overhead of the terminal, and further save power supply overhead.

Optionally, in another example based on the foregoing procedure, 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 S1002, if the terminal determines that the number of the DCI transmitted by the network device is one according to the first information field in the received DCI, the terminal may stop receiving the DCI transmitted by the network device, that is, stop searching for the DCI in the PDCCH search space of the scheduling carrier, so as to save processing overhead of the terminal and further save power supply overhead.

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, where the network device may be a RAN node or a base station. The apparatus may implement the process described in fig. 8 or related embodiments.

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

the determining module 1101 is configured to determine the number of scheduling information of the terminal, and the transmitting module 1102 is configured to transmit the scheduling information using the scheduling frequency resource according to the determined number of scheduling information. Wherein the scheduling information is located in a physical downlink control channel for indicating data channel resources of scheduled frequency resources on scheduling frequency resources, the scheduling information is DCI or an information field in the DCI, the number of the scheduling information is less than or equal to the maximum value of the number of the scheduling information, the maximum value of the amount of scheduling information is determined according to a subcarrier interval of a scheduled frequency resource and a subcarrier interval of a scheduling frequency resource, 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 the subcarrier interval of the scheduled frequency resource, the subcarrier interval of the scheduled frequency resource and a first preset value, or the time unit length of the scheduled frequency resource, the time unit length of the scheduled frequency resource and the first preset value, the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information.

Optionally, the scheduling information is used to indicate data channel resources of scheduled frequency resources in one or more time domain units, and the number of the one or more time domain units is less than or equal to the number of the largest time domain units that can be scheduled by the scheduling information indicated by the first preset value.

Optionally, 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 scheduled frequency resources in a plurality of time domain units, the scheduled frequency resources in each time domain unit in the plurality of time domain units independently carry transmission blocks, or the scheduled frequency resources in all or part of the time domain units jointly carry transmission blocks.

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 a number of the DCI sent by the network device, or is used to indicate whether the number of the DCI sent by the network device is one or multiple.

Optionally, when the scheduling information is an information field in DCI, one information field is used to indicate a data channel resource of a scheduled frequency resource in one time domain unit; the first indication information in one information field is used for indicating whether the scheduled frequency resource independently carries the transmission block on the time domain unit or jointly carries the transmission block with the scheduled frequency resource in other time domain units.

Based on the same technical concept, an embodiment of the present application further provides a scheduling information transmission apparatus, which is used for a terminal and can implement the flow described in fig. 9 or the related embodiment.

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

the determining module 1201 is configured to determine a quantity of scheduling information, and the receiving module 120 is configured to receive the scheduling information on the scheduling frequency resource according to the determined quantity of scheduling information. Wherein the scheduling information is located in a Physical Downlink Control Channel (PDCCH) and is used for indicating data channel resources of scheduled frequency resources on the scheduled frequency resources, the scheduling information is Downlink Control Information (DCI) or an information field in the DCI, the number of the scheduling information is less than or equal to a maximum scheduling information number, and the maximum scheduling information number is determined according to subcarrier intervals of the scheduled frequency resources and subcarrier intervals of the scheduled frequency resources, or is determined according to time domain unit lengths of the scheduled frequency resources and time domain unit lengths of the scheduled frequency resources, or is determined according to subcarrier intervals of the scheduled frequency resources, subcarrier intervals of the scheduled frequency resources and a first preset value, or is determined according to time unit lengths of the scheduled frequency resources and the first preset value, the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information.

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; the receiving module is specifically configured to: if the number of the received DCI is determined to be equal to the DCI number indicated by the first information field according to the first information field in the received DCI, stopping receiving the DCI sent by the network equipment; alternatively, the first and second electrodes may be,

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 multiple; the receiving module is specifically configured to: and if the number of the DCIs sent by the network equipment is determined to be one according to the first information field in the received DCI, stopping receiving the DCI sent by the network equipment.

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, where the network device may be a RAN node or a base station. The apparatus may implement the process described in fig. 10 or the related embodiments.

Referring to fig. 13, the apparatus may include: a determining module 1301 and 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 DCIs to the terminal, or send indication information, where the indication information is used to indicate whether the number of DCIs in one or multiple search spaces.

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

Optionally, the DCI is configured to indicate a data channel resource of a 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 maximum number of time domain units that the DCI can schedule, which is indicated by the joint scheduling capability.

Optionally, the DCI is 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 a plurality of time domain units, the scheduled frequency resources in each time domain unit in the plurality of time domain units independently carry a transport block, or the scheduled frequency resources in all or part of the time domain units jointly carry a transport block.

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

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

a first receiving module 1401 is configured to receive the number of DCIs transmitted by the network device or indication information, where the indication information is used to indicate whether the number of DCIs in one or multiple search spaces; the second receiving module 1402 is configured to receive DCI in the one search space according to the DCI number or the indication information.

Optionally, the DCI includes a first information field, where the first information field is used to indicate a number of DCIs sent by the network device; the second receiving module is specifically configured to: if the number of the received DCI is determined to be equal to the DCI number indicated by the first information field according to the first information field in the received DCI, stopping receiving the DCI in the 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 multiple; the second receiving module is specifically configured to: and if the number of the DCIs sent by the network equipment is determined to be one according to the first information field in the received DCI, stopping receiving the DCI in the search space.

It should be noted that, the division of the modules in the embodiments of the present application is schematic, and is only a logical function division, and in actual implementation, there may be another division manner, and in addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or may exist alone physically, or two or more units are integrated in one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a 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 stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Based on the above embodiments, the present application also provides a computer storage medium, in which a software program is stored, and the software program can implement the method provided by the above embodiments when being read and executed by one or more processors. The computer storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Based on the above embodiments, the present application also provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method provided by the above embodiments.

Based on the above embodiments, the present application further provides a scheduling information transmission apparatus, which can be applied to the communication network shown in fig. 1, and is configured to implement the method shown in fig. 5, and has the function of the network device shown in fig. 11. 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.

Alternatively, the communication interface 1501, the processor 1502, and the memory 1503 may be connected to each other by a bus 1504; the bus 1504 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 1504 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 15, but this is not intended to represent only one bus or type of bus.

The communication interface 1501 is used for receiving and sending data, and implementing communication with other devices (such as forwarding devices) in the communication network. Optionally, the communication interface includes a port.

The memory 1503 stores program instructions and the like. In particular, the program instructions may comprise program code comprising instructions for the operation of a computer. The memory 1503 may include a Random Access Memory (RAM) and may also include a non-volatile memory (e.g., at least one disk memory). The processor 1502 executes the program stored in the memory 1503 to implement the functions described above, thereby implementing the methods provided by the above-described embodiments.

The processor 1502 for implementing the method shown in fig. 5 comprises: the number of scheduling information of the terminal is determined, and the scheduling information is transmitted using the scheduling frequency resource through the communication interface 1501 according to the determined number of scheduling information. Wherein the scheduling information is located in a Physical Downlink Control Channel (PDCCH) and is used for indicating data channel resources of scheduled frequency resources on the scheduled frequency resources, the scheduling information is Downlink Control Information (DCI) or an information field in the DCI, the number of the scheduling information is less than or equal to a maximum scheduling information number, and the maximum scheduling information number is determined according to subcarrier intervals of the scheduled frequency resources and subcarrier intervals of the scheduled frequency resources, or is determined according to time domain unit lengths of the scheduled frequency resources and time domain unit lengths of the scheduled frequency resources, or is determined according to subcarrier intervals of the scheduled frequency resources, subcarrier intervals of the scheduled frequency resources and a first preset value, or is determined according to time unit lengths of the scheduled frequency resources and the first preset value, the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information.

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

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

Optionally, the maximum value of the amount 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 a first set value, the maximum value of the scheduling information quantity 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 quantity is equal to the first set value, if the first ratio is less than or equal to 1, the maximum value of the scheduling information quantity is equal to 1, wherein the first set value is specified by a protocol or configured by a system.

Optionally, the maximum value of the amount of the scheduling information may also be determined according to the following manners, including: and determining a first ratio, wherein if the first ratio is greater than 1, the maximum value of the scheduling information quantity is equal to the first ratio, and if the first ratio is less than or equal to 1, the maximum value of the scheduling information quantity is equal to 1.

Optionally, the maximum value of the amount of the scheduling information may be further determined according to the following manners, including: determining the product of a first ratio and a second set value, if the product is greater than 1 and less than a first set value, the maximum value of the scheduling information quantity 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 quantity is equal to the first set value, if the product is less than or equal to 1, the maximum value of the scheduling information quantity is equal to 1, wherein the first set value and the second set value are specified by a protocol or configured by a system.

Wherein 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 the number of maximum time domain units indicated by the joint scheduling capability.

Based on the above embodiments, the present application further provides a scheduling information transmission apparatus, which can be applied to the communication network shown in fig. 1, and is configured to implement the method shown in fig. 8, and has the function of the terminal shown in fig. 12. 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.

Alternatively, the communication interface 1601, the processor 1602, and the memory 1603 may be connected to each other via a bus 1604; the bus 1604 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 1604 may be divided into an address bus, a data bus, a control bus, and so on. For ease of illustration, only one thick line is shown in FIG. 16, but this is not intended to represent only one bus or type of bus.

The communication interface 1601 is used for receiving and transmitting data to realize communication with other devices (such as a forwarding device) in the communication network. Optionally, the communication interface includes a port.

The memory 1603 is used to store program instructions and the like. In particular, the program instructions may comprise program code comprising instructions for the operation of a computer. Memory 1603 may include Random Access Memory (RAM) and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 1602 executes the program stored in the memory 1603 to implement the functions, thereby implementing the methods provided by the embodiments.

The processor 1502 for implementing the method shown in fig. 8 comprises: the amount of scheduling information is determined, and the scheduling information is received on the scheduling frequency resource through the communication interface 1601 according to the determined amount of scheduling information. Wherein the scheduling information is located in a Physical Downlink Control Channel (PDCCH) and is used for indicating data channel resources of scheduled frequency resources on the scheduled frequency resources, the scheduling information is Downlink Control Information (DCI) or an information field in the DCI, the number of the scheduling information is less than or equal to a maximum scheduling information number, and the maximum scheduling information number is determined according to subcarrier intervals of the scheduled frequency resources and subcarrier intervals of the scheduled frequency resources, or is determined according to time domain unit lengths of the scheduled frequency resources and time domain unit lengths of the scheduled frequency resources, or is determined according to subcarrier intervals of the scheduled frequency resources, subcarrier intervals of the scheduled frequency resources and a first preset value, or is determined according to time unit lengths of the scheduled frequency resources and the first preset value, the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information.

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; the processor 1602 is specifically configured to: if it is determined from the first information field in the received DCI that the number of received DCIs equal to the DCI number indicated by the first information field, the reception of the DC transmitted by the network device through the communication interface 1601 is stopped.

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 multiple; the processor 1602 is specifically configured to: if the number of the DCIs transmitted by the network device is determined to be one according to the first information field in the received DCI, the receiving of the DCI transmitted by the network device through the communication interface 1601 is stopped.

Based on the above embodiments, the present application further provides a scheduling information transmission apparatus, which can be applied to the communication network shown in fig. 1, and is configured to implement the method shown in fig. 9, and has the function of the network device shown in fig. 13. 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.

Alternatively, the communication interface 1701, the processor 1702, and the memory 1703 may be connected to each other through the bus 1704; the bus 1704 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 1704 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 17, but this does not mean only one bus or one type of bus.

The communication interface 1701 is used for receiving and transmitting data to realize 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, the program instructions may comprise program code comprising instructions for the operation of a computer. The memory 1703 may include Random Access Memory (RAM), and may also include non-volatile memory (e.g., at least one disk memory). The processor 1702 executes the programs stored in the memory 1703 to implement the above functions, thereby implementing the methods provided by the above embodiments.

The processor 1702, configured to implement the method shown in fig. 9, includes: determining the number of Downlink Control Information (DCI) in a search space of a terminal; the number of DCI is transmitted to the terminal through the communication interface 1701, or indication information indicating whether the number of DCI in the one search space is one or more is transmitted.

Optionally, the DCI is configured to indicate a data channel resource of a 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 number of the largest time domain unit that the DCI can schedule, where the number of the one or more time domain units is indicated by a first preset value, and the first preset value is used to determine the number of the largest time domain unit that the scheduling information can schedule.

Based on the above embodiments, the present application further provides a scheduling information transmission apparatus, which can be applied to the communication network shown in fig. 1, and is used for implementing the method shown in fig. 10, and has the functions of the terminal shown in fig. 14. 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 interconnected via a bus 1804; the bus 1804 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 1804 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 18, but this does not mean only one bus or one type of bus.

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

The memory 1803 is used for storing program instructions and the like. In particular, the program instructions may comprise program code comprising instructions for the operation of a computer. The memory 1803 may include a Random Access Memory (RAM) and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 1802 executes the program stored in the memory 1803 to implement the above functions, thereby implementing the methods provided by the above embodiments.

The processor 1802, configured to implement the method shown in fig. 10, includes: receiving, through the communication interface 1801, the number of DCIs transmitted by a network device or indication information, where the indication information is used to indicate whether the number of DCIs in one or multiple search spaces; receiving DCI in the one search space through the communication interface 1801 according to the DCI number or the indication information.

Optionally, the DCI includes a first information field, where the first information field is used to indicate a number of DCIs sent by the network device; the terminal receives the DCI in the search space according to the DCI number or the indication information, and the method comprises the following steps: if the terminal determines that the number of the received DCI is equal to the DCI number indicated by the first information field according to the first information field in the received DCI, stopping receiving the DCI in the search space; alternatively, the first and second electrodes may be,

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may 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, and the like) having computer-usable program code embodied therein.

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 application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for scheduling information transmission, comprising:

the network equipment determines the quantity of scheduling information of a terminal, the scheduling information is located in a physical downlink control channel and is used for indicating data channel resources of scheduled frequency resources on the scheduled frequency resources, 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 the maximum value of the quantity of the scheduling information, the maximum value of the quantity of the scheduling information is determined according to the subcarrier interval of the scheduled frequency resources and the subcarrier interval of the scheduled frequency resources, or is determined according to the time domain unit length of the scheduled frequency resources and the time domain unit length of the scheduled frequency resources, or is determined according to the subcarrier interval of the scheduled frequency resources, the subcarrier interval of the scheduled frequency resources and a first preset value, or is determined according to the time unit length of the scheduled frequency resources and the first preset value, the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information;

and the network equipment transmits scheduling information by using the scheduling frequency resource according to the determined quantity of the scheduling information.

2. The method of claim 1, wherein 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 of maximum time domain units that the scheduling information can schedule, as indicated by the first preset value.

3. The method of claim 1 or 2, wherein the scheduling information is for indicating data channel resources of scheduled frequency resources in one or more time domain units;

when the scheduling information indicates data channel resources of scheduled frequency resources in a plurality of time domain units, the scheduled frequency resources in each time domain unit in the plurality of time domain units independently carry transmission blocks, or the scheduled frequency resources in all or part of the time domain units jointly carry transmission blocks.

4. The method of claim 1 or 2, wherein when the scheduling information is DCI, a first information field is included in the DCI transmitted by the network device, and the first information field is used to indicate the number of DCIs transmitted by the network device or to indicate whether the number of DCIs transmitted by the network device is one or more.

5. The method of claim 1 or 2, wherein when the scheduling information is an information field in DCI, one information field is used to indicate data channel resources of scheduled frequency resources in one time domain unit;

the first indication information is included in one information field, and the time domain unit aggregation indication information in the one information field is used for indicating whether the scheduled frequency resource independently carries the transport block on the time domain unit or jointly carries the transport block with the scheduled frequency resource in other time domain units.

6. The method of claim 1 or 2, wherein the maximum value of the amount of scheduling information is determined according to the following manner, including:

7. A method for scheduling information transmission, comprising:

the terminal determines the amount of scheduling information, the scheduling information is located in a physical downlink control channel and is used for indicating data channel resources of scheduled frequency resources on the scheduled frequency resources, the scheduling information is downlink control information DCI or an information field in the DCI, the amount of the scheduling information is less than or equal to a maximum scheduling information amount, the maximum scheduling information amount is determined according to subcarrier intervals of the scheduled frequency resources and subcarrier intervals of the scheduled frequency resources, or is determined according to time domain unit length of the scheduled frequency resources and time domain unit length of the scheduled frequency resources, or is determined according to subcarrier intervals of the scheduled frequency resources, subcarrier intervals of the scheduled frequency resources and a first preset value, or is determined according to time unit length of the scheduled frequency resources and the first preset value, the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information;

and the terminal receives the scheduling information on the scheduling frequency resource according to the determined quantity of the scheduling information.

8. The method of claim 7, wherein 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 of maximum time domain units that the scheduling information can schedule, as indicated by the first preset value.

9. The method of claim 7 or 8, wherein the scheduling information is for indicating data channel resources of scheduled frequency resources in one or more time domain units;

10. The method of claim 7 or 8, wherein when the scheduling information is DCI, a first information field is included in DCI transmitted by a network device, and the first information field is used to indicate the number of DCI transmitted by the network device; the terminal receives scheduling information on the scheduling frequency resource according to the determined quantity of the scheduling information, and the method comprises the following steps: if the terminal determines that the number of the received DCI is equal to the DCI number indicated by the first information field according to the first information field in the received DCI, stopping receiving the DCI sent by the network equipment; alternatively, the first and second electrodes may be,

11. The method of claim 7 or 8, wherein when the scheduling information is an information field in DCI, one information field is used to indicate data channel resources of scheduled frequency resources in one time domain unit;

the first indication information in one information field is used for indicating whether the scheduled frequency resource independently carries the transmission block on the time domain unit or jointly carries the transmission block with the scheduled frequency resource in other time domain units.

12. The method of claim 7 or 8, wherein the maximum value of the amount of scheduling information is determined according to the following manner, including:

13. A method for scheduling information transmission, comprising:

the network equipment determines the number of downlink control information DCI in a search space of the terminal;

the network equipment sends the DCI number to the terminal or sends indication information, wherein the indication information is used for indicating whether the DCI number in the search space is one or more;

the number of DCI is less than or equal to the maximum value of the number of scheduling information;

the maximum value of the scheduling information quantity is determined according to the subcarrier interval of the scheduled frequency resource and the subcarrier interval of the scheduling frequency resource; or the time domain unit length of the scheduled frequency resource and the time domain unit length of the scheduled frequency resource are determined; or the first preset value is determined according to the subcarrier interval of the scheduled frequency resource, the subcarrier interval of the scheduled frequency resource and the first preset value; or the number is determined according to the length of the time unit of the scheduled frequency resource, the length of the time unit of the scheduled frequency resource and the first preset value, wherein the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information.

14. The method of claim 13, wherein the DCI includes a first information field indicating a number of DCIs transmitted by the network device or indicating whether the number of DCIs within the one search space is one or more.

15. The method of claim 13 or 14, wherein the DCI is configured 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 a number of maximum time domain units that the DCI can schedule, which is indicated by a first preset value used to determine a number of maximum time domain units that the scheduling information can schedule.

16. The method of claim 13 or 14, wherein the DCI is 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 a plurality of time domain units, the scheduled frequency resources in each time domain unit in the plurality of time domain units independently carry a transport block, or the scheduled frequency resources in all or part of the time domain units jointly carry a transport block.

17. A method for scheduling information transmission, comprising:

the terminal receives the number of DCIs transmitted by the network equipment or indication information, wherein the indication information is used for indicating whether the number of DCIs in one search space is one or more;

the terminal receives the DCI in the search space according to the number of the DCI or the indication information;

18. The method of claim 17, wherein a first information field is included in the DCI, the first information field indicating a number of DCIs transmitted by the network device; the terminal receives the DCI in the search space according to the DCI number or the indication information, and the method comprises the following steps: if the terminal determines that the number of the received DCI is equal to the DCI number indicated by the first information field according to the first information field in the received DCI, stopping receiving the DCI in the search space; alternatively, the first and second electrodes may be,

19. The method of claim 17 or 18, wherein the DCI is configured 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 a number of maximum time domain units that the DCI can schedule, which is indicated by a first preset value used to determine a number of maximum time domain units that the scheduling information can schedule.

20. The method of claim 17 or 18, wherein the DCI is to indicate data channel resources of scheduled frequency resources in one or more time domain units;

21. A scheduling information transmitting apparatus for a network device, comprising:

a determining module, configured to determine the amount of scheduling information of a terminal, where the scheduling information is located in a physical downlink control channel (pdcch) and is used to indicate a data channel resource of a scheduled frequency resource on a scheduled frequency resource, where the scheduling information is Downlink Control Information (DCI) or an information field in the DCI, the amount of scheduling information is less than or equal to a maximum scheduling information amount, and the maximum scheduling information amount is determined according to a subcarrier interval of the scheduled frequency resource and a subcarrier interval of the scheduled frequency resource, or is determined according to a time domain unit length of the scheduled frequency resource and a time domain unit length of the scheduled frequency resource, or is determined according to the subcarrier interval of the scheduled frequency resource, and a first preset value, or is determined according to a time unit length of the scheduled frequency resource and a time unit length of the scheduled frequency resource, and the first preset value, the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information;

and a sending module, configured to send the scheduling information using the scheduling frequency resource according to the determined amount of the scheduling information.

22. The apparatus of claim 21, wherein the scheduling information indicates data channel resources of scheduled frequency resources in one or more time domain units, a number of the one or more time domain units being less than or equal to a number of maximum time domain units that the scheduling information can schedule, as indicated by the first preset value.

23. The apparatus of claim 21 or 22, wherein the scheduling information is for indicating data channel resources of scheduled frequency resources in one or more time domain units;

24. The apparatus of claim 21 or 22, wherein when the scheduling information is DCI, a first information field is included in the DCI transmitted by the network device, and the first information field is used to indicate the number of DCIs transmitted by the network device or to indicate whether the number of DCIs transmitted by the network device is one or more.

25. The apparatus of claim 21 or 22, wherein when the scheduling information is an information field in DCI, one information field is used to indicate data channel resources of scheduled frequency resources in one time domain unit;

26. A scheduling information transmitting apparatus for a terminal, comprising:

a determining module, configured to determine the amount of scheduling information, where the scheduling information is located in a physical downlink control channel, and is used to indicate a data channel resource of a scheduled frequency resource on a scheduled frequency resource, where the scheduling information is downlink control information DCI or an information field in the DCI, the amount of scheduling information is less than or equal to a maximum scheduling information amount, and the maximum scheduling information amount is determined according to a subcarrier interval of the scheduled frequency resource and a subcarrier interval of the scheduled frequency resource, or is determined according to a time domain unit length of the scheduled frequency resource and a time domain unit length of the scheduled frequency resource, or is determined according to the subcarrier interval of the scheduled frequency resource, and a first preset value, or is determined according to the time unit length of the scheduled frequency resource and the time unit length of the scheduled frequency resource, and the first preset value, the first preset value is used for determining the number of the maximum time domain units which can be scheduled by the scheduling information;

and a receiving module, configured to receive the scheduling information on the scheduling frequency resource according to the determined amount of the scheduling information.

27. The apparatus of claim 26, wherein the scheduling information indicates data channel resources of scheduled frequency resources in one or more time domain units, a number of the one or more time domain units being less than or equal to a number of maximum time domain units that the scheduling information can schedule, as indicated by the first preset value.

28. The apparatus of claim 26 or 27, wherein the scheduling information is for indicating data channel resources of scheduled frequency resources in one or more time domain units;

29. The apparatus of claim 26 or 27, wherein when the scheduling information is DCI, a first information field is included in DCI transmitted by a network device, and the first information field is used to indicate the number of DCI transmitted by the network device; the receiving module is specifically configured to: if the number of the received DCI is determined to be equal to the DCI number indicated by the first information field according to the first information field in the received DCI, stopping receiving the DCI sent by the network equipment; alternatively, the first and second electrodes may be,

30. The apparatus of claim 26 or 27, wherein when the scheduling information is an information field in DCI, one information field is used to indicate data channel resources of scheduled frequency resources in one time domain unit;

31. A scheduling information transmitting apparatus for a network device, comprising:

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

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 the DCI in the one search space is one or multiple;

32. The apparatus of claim 31, wherein the DCI includes a first information field indicating a number of DCIs transmitted by the network device or indicating whether the number of DCIs is one or more within the one search space.

33. A scheduling information transmitting apparatus for a terminal, comprising:

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

a second receiving module, configured to receive the DCI in the search space according to the DCI number or the indication information;

34. The apparatus of claim 33, wherein a first information field is included in the DCI, the first information field indicating a number of DCIs transmitted by the network device; the second receiving module is specifically configured to: if the number of the received DCI is determined to be equal to the DCI number indicated by the first information field according to the first information field in the received DCI, stopping receiving the DCI in the search space; alternatively, the first and second electrodes may be,

the DCI comprises a first information field, wherein the first information field is used for indicating whether the number of DCIs in the one search space is one or more; the second receiving module is specifically configured to: and if the number of the DCIs sent by the network equipment is determined to be one according to the first information field in the received DCI, stopping receiving the DCI in the search space.