Information transmission method, device and storage medium

Abstract

Embodiments of the present application provide a method, device and storage medium for information transmission. The method comprises: generating, by a network device, control information, wherein the control information is used to indicate data scheduling of at least two carriers; and transmitting, by the network device, the control information. Since the control information is used to indicate data scheduling of at least two carriers, compared with a scheme in which one control information is used to indicate data scheduling of one carrier, the embodiments of the present application can effectively reduce physical downlink control channel resource overhead.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of communication, and in particular, to an information transmission method, device and storage medium. BACKGROUND

[0002] In a current communication system, such as a LTE (Long Term Evolution) system or a NR (New Radio) system, DCI (Downlink Control Information) is carried by a PDCCH (Physical Downlink Control Channel) to schedule uplink and downlink data of a terminal device or to perform different command instructions. When the downlink control information is used for data scheduling, the network device can indicate data scheduling on multiple carriers through multiple downlink control information, wherein one downlink control information indicates data scheduling on one carrier. However, with the rapid penetration of 5G devices, the number of devices that the communication system needs to support greatly increases, and the number of carriers in the CA (Carrier Aggregation) scenario also increases, which may result in insufficient PDCCH resources.

[0003] The foregoing description is provided for general background information and does not necessarily constitute prior art. SUMMARY

[0004] Embodiments of the present application provide an information transmission method, device and storage medium to effectively reduce the PDCCH resource overhead.

[0005] In a first aspect, embodiments of the present application provide an information transmission method applied to a network device, comprising the following steps:

[0006] S10, generating control information, the control information being used to indicate data scheduling of at least two carriers;

[0007] S30, sending the control information.

[0008] In a possible implementation, the step S30 can comprise: sending the control information in a search space corresponding to any carrier of the at least two carriers.

[0009] In a possible implementation, before the step S30, the method further comprises: sending a first signaling, the first signaling being used to indicate the length of the carrier information of the second carrier.

[0010] In a possible implementation, before the step S30, the method further includes: S20, sending second signaling, the second signaling being used to indicate whether the control information contains data scheduling of the at least two carriers.

[0011] In a second aspect, an embodiment of the present application provides an information transmission method, applied to a terminal device, and including:

[0012] S100, receiving control information, the control information being used to indicate data scheduling of the at least two carriers;

[0013] S200, performing data transmission according to the control information.

[0014] In a possible implementation, the step S100 can include:

[0015] searching for the control information in a search space corresponding to the carrier;

[0016] if the control information is searched, receiving the control information; and / or,

[0017] if the control information is not searched, not receiving the control information.

[0018] In a possible implementation, after the control information is received, the terminal device no longer searches for the control information in a search space corresponding to the carrier.

[0019] In a possible implementation, before the step S100, the method further includes: receiving first signaling, the first signaling being used to indicate a length of carrier information of the second carrier.

[0020] In a possible implementation, before the step S100, the method further includes: S000, receiving second signaling, the second signaling being used to indicate whether the control information contains data scheduling of the at least two carriers.

[0021] In a third aspect, an embodiment of the present application provides an information transmission apparatus, applied to a network device, and including:

[0022] a processing module, configured to generate control information, the control information being used to indicate data scheduling of the at least two carriers;

[0023] a sending module, configured to send the control information.

[0024] In a possible implementation, the sending module is specifically configured to send the control information in a search space corresponding to any carrier of the at least two carriers.

[0025] In a possible implementation, the sending module is further configured to, before the control information is sent, send first signaling, the first signaling being used to indicate a length of carrier information of the second carrier.

[0026] In a possible implementation, the sending module is further configured to: before sending the control information, send second signaling, where the second signaling is used to indicate whether the control information contains data scheduling of the at least two carriers.

[0027] In a fourth aspect, an information transmission apparatus is provided, which is applied to a terminal device and includes:

[0028] a receiving module configured to receive control information, where the control information is used to indicate data scheduling of the at least two carriers;

[0029] a processing module configured to perform data transmission according to the control information.

[0030] In a possible implementation, the receiving module is specifically configured to:

[0031] search for the control information in a search space corresponding to the carrier;

[0032] if the control information is searched, receive the control information; and / or

[0033] if the control information is not searched, do not receive the control information.

[0034] In a possible implementation, after the control information is received, the receiving module no longer searches for the control information in the search space corresponding to the carrier.

[0035] In a possible implementation, the receiving module is further configured to: before receiving the control information, receive first signaling, where the first signaling is used to indicate a length of carrier information of the second carrier.

[0036] In a possible implementation, the receiving module is further configured to: before receiving the control information, receive second signaling, where the second signaling is used to indicate whether the control information contains data scheduling of the at least two carriers.

[0037] Based on any of the above possible implementations:

[0038] Optionally, the control information contains first configuration information, where the first configuration information is used to indicate whether the control information contains carrier information of the at least two carriers.

[0039] Optionally, the at least two carriers include a first carrier and a second carrier. When the first configuration information indicates that the control information contains carrier information of the at least two carriers, the control information further contains carrier information of the first carrier and carrier information of the second carrier.

[0040] Optionally, if the carrier information configuration of the second carrier is the same as the carrier information configuration of the corresponding first carrier, the first signaling indicates that the length of the carrier information configuration of the second carrier is zero; and / or, if the carrier information configuration of the second carrier is different from the carrier information configuration of the corresponding first carrier, the first signaling indicates that the length of the carrier information configuration of the second carrier is non-zero.

[0041] Optionally, the first signaling can include: MAC CE (Media Access Control-Control Element) signaling and / or RRC (Radio Resource Control) signaling.

[0042] Optionally, the carrier information can include at least one of:

[0043] Bandwidth part indicator, frequency domain resource configuration, time domain resource configuration, HARQ (Hybrid Automatic Repeat Request) process number, TPC (Transmit Power Control) command for scheduled PUCCH (Physical Uplink Control Channel), PUCCH resource indicator, PDSCH-to-HARQ_feedback timing indicator, new feedback indicator, and SRS (Sounding Reference Signal) request.

[0044] Optionally, in the at least two carriers, the frequency bands of the carriers are different.

[0045] Optionally, the control information is carried by RRC (Radio Resource Control) signaling.

[0046] Optionally, the second signaling includes second configuration information, and the second configuration information is used to indicate whether the control information indicates data scheduling of the at least two carriers.

[0047] Optionally, the at least two carriers include a first carrier and a second carrier, and the second signaling includes identification information of the second carrier.

[0048] In a fifth aspect, an embodiment of the present application provides a communication device, including: a memory and a processor.

[0049] a memory for storing program instructions;

[0050] a processor for invoking the program instructions in the memory to perform the method according to any one of the first aspect or the method according to any one of the second aspect.

[0051] It should be noted that the communication device of the fifth aspect can be a terminal device or a network device, or can be a chip of a terminal device or a chip of a network device.

[0052] In a sixth aspect, an embodiment of the present application provides a communication system, comprising:

[0053] a network device for implementing any one of the first aspect; and

[0054] a terminal device for implementing any one of the second aspect.

[0055] In a seventh aspect, an embodiment of the present application provides a readable storage medium, and the readable storage medium stores a computer program; when the computer program is executed, the method according to any one of the first aspect or the method according to any one of the second aspect is implemented.

[0056] In an eighth aspect, an embodiment of the present application further provides a program product, and the program product comprises a computer program, the computer program is stored in a readable storage medium, a processor can read the computer program from the readable storage medium, and the processor executes the computer program to implement the method according to any one of the first aspect or the second aspect.

[0057] Embodiments of the present application provide an information transmission method and device and a storage medium. A network device generates control information, and the control information is used to indicate data scheduling of at least two carriers. Further, the network device transmits the control information to a terminal device. Since the control information is used to indicate data scheduling of at least two carriers, compared with a scheme in which one control information is used to indicate data scheduling of one carrier, physical downlink control channel resource overhead can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0058] Figure 1 a schematic diagram of a communication system provided by an embodiment of the present application;

[0059] Figure 2 a flowchart of an information transmission method provided by an embodiment of the present application;

[0060] Figure 3 a flowchart of an information transmission method provided by another embodiment of the present application;

[0061] Figure 4 a flowchart of an information transmission method provided by yet another embodiment of the present application;

[0062] Figure 5 Flow chart of information transmission method provided by another embodiment of the present application;

[0063] Figure 6 Structural schematic diagram of information transmission device provided by an embodiment of the present application;

[0064] Figure 7 Structural schematic diagram of information transmission device provided by another embodiment of the present application;

[0065] Figure 8 Structural schematic diagram of communication device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0066] It should be understood that the "and / or" involved in the embodiments of the present application describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone, wherein A and B can be singular or plural. The character " / " generally represents a "or" relationship between the associated objects before and after it.

[0067] In addition, the step codes involved in the embodiments of the present application, such as S10, S20, S100, S200, etc., are used to more clearly describe the corresponding steps, and do not constitute substantial restrictions on the order. Those skilled in the art may, for example, first perform S20 and then perform S10 when implementing, but these should be within the protection scope of the present application.

[0068] Firstly, the application scenarios and some words involved in the embodiments of the present application are introduced.

[0069] Figure 1 Schematic diagram of a communication system provided by an embodiment of the present application. As shown in the figure, the communication system includes a network device and a terminal device. Among them, the terminal device is within the coverage range of the network device and communicates with the network device to implement the technical solutions provided by each of the embodiments of the present application. Among them: Figure 1

[0070] ​The network device, also referred to as a RAN (Radio Access Network) device, is a device for accessing a terminal device to a wireless network, which can be an eNB or eNodeB (evolutional NodeB) in a long term evolution system, or a relay station or an access point, or a base station in a 5G network, such as a TRP (Transmission and Reception Point), a controller, without limitation here. In one possible way, the network device can be a base station (such as a gNB) in a centralized unit (CU) and distributed unit (DU) separation architecture.

[0071] The terminal device can be a wireless terminal device or a wired terminal device. The wireless terminal device can be a device with wireless transceiving function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can be deployed on water surface (such as ships, etc.); and can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiving function, a VR (Virtual Reality) terminal device, an AR (Augmented Reality) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical treatment, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, etc., without limitation here. It can be understood that the terminal device can also be referred to as a UE (User Equipment) in the embodiments of the present application.

[0072] With the development of communication technology, the penetration rate of 5G devices is rapidly rising, the number of devices that the communication system needs to support is greatly increased, and the number of downlink waves in the CA scenario is also increased. At this time, if one control information, such as downlink control information, indicates the data scheduling of one carrier, it will cause the shortage of physical downlink control channel resources.

[0073] Therefore, based on the above, the present application proposes that at least two carriers are indicated by one control information to reduce the physical downlink control channel resource overhead.

[0074] Figure 2 A flowchart of an information transmission method provided by an embodiment of the present application. The embodiment of the present application provides an information transmission method applied to a network device. As shown in the figure, the method of the embodiment comprises the following steps: Figure 2

[0075] S10, generating control information, wherein the control information is used to indicate data scheduling of at least two carriers.

[0076] S30, sending the control information.

[0077] The "control information" herein includes but is not limited to the "downlink control information" as mentioned above. The at least two carriers can specifically correspond to bandwidths of data transmission on different bands, or different BWPs (Bandwidth Part) on the same band, or different bandwidths within the same band, or different CCs (Component Carrier), and different carriers can support different SCS (Sub-Carrier Space) configurations.

[0078] The network device determines the number of carriers required by the terminal device according to the demand and the currently available physical downlink control channel resources, the number of terminal devices, the amount of data to be scheduled, and other information, generates control information corresponding to the terminal device based on the number of carriers, and sends the control information to the terminal device. The control information can indicate data scheduling of two carriers, or the control information can indicate data scheduling of three carriers, and so on.

[0079] The information transmission method provided by the embodiment of the present application is that the network device generates control information, which is used to indicate data scheduling of at least two carriers, and further sends the control information to the terminal device. Since the control information is used to indicate data scheduling of at least two carriers, compared with the scheme that one control information indicates data scheduling of one carrier, the physical downlink control channel resource overhead can be effectively reduced.

[0080] In addition, the method is downward compatible, one control information can be used to indicate data scheduling of one carrier, and / or one control information can be used to indicate data scheduling of at least two carriers, so that the information transmission method provided by the embodiment of the present application can flexibly support the demand of dynamic scheduling of multiple carriers.

[0081] On the basis of the above-mentioned embodiment, further, the step S30 can comprise: sending the control information in a search space corresponding to any of the at least two carriers.

[0082] ​The network device configures a terminal device with search space related parameters, that is, the terminal device is informed of time-frequency resources for searching for control information through the parameters, and the terminal device determines a search space of the control information according to the search space related parameters. One search space includes a plurality of specific search positions, for example, control information of different carriers uses different positions. Considering that the control information in the embodiments of the present application indicates a number of carriers for data scheduling of at least two, the control information can be sent in a search space corresponding to any of the at least two carriers.

[0083] The following describes how the control information indicates data scheduling of at least two carriers.

[0084] In some embodiments, the control information includes first configuration information, which is used to indicate whether the control information includes carrier information of at least two carriers.

[0085] Further, for the convenience of description, at least two carriers are distinguished, including a first carrier and a second carrier. When the first configuration information indicates that the control information includes carrier information of at least two carriers, the control information further includes carrier information of the first carrier and carrier information of the second carrier. And / or, when the first configuration information indicates that the control information does not include carrier information of at least two carriers, the control information further includes carrier information of the first carrier, that is, when the first configuration information indicates that the control information includes carrier information of one carrier, the control information further includes carrier information of the first carrier. It can be understood that the number of the first carrier is at least one, and the number of the second carrier is at least one.

[0086] In a specific implementation, the first configuration information can be an independent variable, and / or an existing variable can be extended, which will be described in the following.

[0087] I. Indicating whether to include carrier information of at least two carriers by extending an existing variable.

[0088] Taking two carriers as an example, the carrier indicator is 6 bits (bits), and 6 bits are used to indicate two carriers scheduled, and the current 3 bits and the next 3 bits are the same, indicating that there is actually only one carrier; the current 3 bits and the next 3 bits are different, indicating two carriers, and the first carrier identifier and the second carrier identifier are respectively corresponding. Wherein, when there is one carrier, the carrier indicator is 3 bits.

[0089] II. Independent variable to indicate whether to include carrier information of at least two carriers.

[0090] Still taking two carriers as an example, an independent variable SecondaryCarrierFlag is used to indicate whether two carriers are contained. Specifically:

[0091] SecondaryCarrierFlag 0 or 1 bit

[0092] When the network device configures the terminal device to support the control information indicating data scheduling of at least two carriers, the SecondaryCarrierFlag is 1 bit, where the bit filled with "0" indicates that there is no second carrier, and the bit filled with "1" indicates that there is a second carrier.

[0093] The above implementation manner is applicable to a scenario where data transmission on the scheduled at least two carriers is of the same SCS / standard / time-frequency configuration and the like scheduling parameters.

[0094] When data transmission on the scheduled at least two carriers is of different SCS / standard / time-frequency configuration and the like scheduling parameters, in addition to the above indication, it is further necessary to extend part of the carrier information and determine the presence or absence of the field according to the signaling indication.

[0095] Optionally, the carrier information can include at least one of the following:

[0096] a bandwidth part indicator, a frequency domain resource configuration, a time domain resource configuration, a hybrid automatic repeat request process number, a TPC command for scheduled PUCCH, a PUCCH resource indicator, a PDSCH-to-HARQ_feedback timing indicator, a new feedback indicator, and an SRS request, and the like.

[0097] Furthermore, prior to step S30, the information transmission method provided in this embodiment further includes: sending a first signaling signal, which indicates the length of the carrier information of the second carrier. The first signaling signal may include: media access control-control unit signaling and / or radio resource control signaling. To prevent the control information from being excessively extended, and to ensure that the length of the control information is known in advance, the length of the carrier information of the second carrier is indicated by the first signaling signal. Accordingly, the length of the carrier information of the second carrier may be determined based on other configurations related to the second carrier.

[0098] For example, if the time-domain resource configurations of the data scheduled by the first carrier and the second carrier are the same, then the first signaling indicates that the length of the time-domain resource configuration of the second carrier is 0, and the terminal device uses the same configuration as the time-domain resource configuration of the first carrier.

[0099] For example, if the Media Access Control (MAC) Entity for the data scheduled by the first and second carriers is the same, then the length of the carrier information related to HARQ (Hybrid Automatic Repeat Request) is 0. This includes the lengths of carrier information such as the HARQ process number, the TPC command for scheduled PUCCH, the PUCCH resource indicator, and the PDSCH-to-HARQ_feedback timing indicator. The terminal device can then process the HARQ-related procedures for the second carrier in a combined manner with those for the first carrier.

[0100] The above are just examples; specific applications can use different combinations based on the characteristics of the carrier information.

[0101] It should be noted that in any embodiment of this application, at least two carriers have different frequency bands. Furthermore, the control information is carried by radio resource control signaling.

[0102] Based on the above, network devices can implicitly or explicitly notify terminal devices of data scheduling information for at least two carriers indicated by control information. The following, in conjunction with... Figure 3 Provide an explanation.

[0103] refer to Figure 3 ,exist Figure 2 Based on the process shown, prior to step S30, the information transmission method further includes:

[0104] S20, sending second signaling, the second signaling being used to indicate whether the control information indicates data scheduling of at least two carriers.

[0105] In an implementation, the second signaling contains second configuration information, the second configuration information being used to indicate whether the control information indicates data scheduling of at least two carriers. This implementation implicitly informs the terminal device of information of data scheduling of at least two carriers indicated by the control information through the second configuration information. Accordingly, the terminal device determines, according to a predetermined rule, that two carriers indicated by the control information are a carrier ID (identification information of the first carrier) corresponding to schedulingCellId and a carrier ID (identification information of the second carrier) related to the current cell. Here, two carriers are taken as an example for illustration, but the embodiments of the present application are not limited thereto.

[0106] In another implementation, the second signaling contains identification information of the second carrier, explicitly indicating identification information such as an ID of the second carrier. Here, the first carrier is the carrier related to the current cell.

[0107] Corresponding to the steps performed by the network device in the above embodiments, next, steps performed by the terminal device are introduced. Figure 4 The steps performed by the terminal device are introduced. Figure 4 A flowchart of an information transmission method provided by yet another embodiment of the present application is shown in FIG. 6.

[0108] Reference is made to FIG. 6. Figure 4 The information transmission method of this embodiment includes the following steps:

[0109] S100, receiving control information, wherein the control information is used to indicate data scheduling of at least two carriers.

[0110] S200, performing data transmission according to the control information.

[0111] The terminal device performs data transmission on at least two carriers according to the control information.

[0112] In a specific application, the terminal device does not know, before receiving the control information, whether the control information indicates data scheduling of one carrier or data scheduling of at least two carriers, and therefore needs to search on search spaces corresponding to at least two carriers configured.

[0113] If the control information is used to indicate data scheduling of at least two carriers, the step S100 can comprise: searching for the control information in a search space corresponding to a carrier; receiving the control information if the control information is searched for; and / or not receiving the control information, i.e. no receiving action, if the control information is not searched for. The search order of the carriers can have a predetermined rule or indication, such as searching for a search space related to a first carrier first, or a search space corresponding to a carrier with a smaller serial number, etc.

[0114] Further, after receiving the control information, the terminal device no longer searches for the control information in a search space corresponding to a carrier. Here, if the control information is searched for in a search space corresponding to a first carrier, and the control information indicates data scheduling of the first carrier and a second carrier, the terminal device does not need to search for the control information in a search space corresponding to the second carrier.

[0115] Optionally, if the control information is used to indicate data scheduling of one carrier, after receiving the control information, the terminal device continues to search for the control information in a search space corresponding to a remaining carrier, the remaining carrier being a carrier other than the carrier corresponding to the search space in which the control information is searched for, among the at least two carriers.

[0116] Specifically, the terminal device searches for a search space corresponding to at least two carriers according to a related configuration and a formula:

[0117]

[0118] wherein n CI represents a carrier ID; mod represents a remainder; L is an aggregation level; Y is an integer related to a time slot, an RNTI (Radio Network Temporary Identity), a CORESET serial number, etc.; M is a number of candidate physical downlink control channels, and m is a serial number of a candidate physical downlink control channel; N CCE is a number of CCEs (Control Channel Elements) of a CORESET; and i is a serial number of a control channel element.

[0119] n CI Different n can obtain different starting positions of CCEs according to the formula, and the terminal device searches for the control information according to the starting position of the CCEs and the resource aggregation level (i.e. the number of CCEs).

[0120] For example, the terminal device receives the control information in a search space corresponding to a carrier with n CI = 0, and the control information is used to indicate n CI = 0 and n CIIf the control information received in the search space corresponding to the carrier with n CI If the control information received in the search space corresponding to the carrier with n CI The search space corresponding to the carrier with n

[0121] If the control information received in the search space corresponding to the carrier with n CI If the control information received in the search space corresponding to the carrier with n CI If the control information received in the search space corresponding to the carrier with n CI If the control information received in the search space corresponding to the carrier with n

[0122] Optionally, before the step S100, the method further includes: receiving a first signaling, the first signaling being used to indicate a length of the carrier information of the second carrier.

[0123] Further, as shown in the flow shown in FIG. 1, before the step S100, the method further includes: Figure 5 Figure 4 As shown in the flow shown in FIG. 1, before the step S100, the method further includes:

[0124] S000, receiving a second signaling, the second signaling being used to indicate whether the control information indicates the data scheduling of the at least two carriers.

[0125] Wherein, the related descriptions of the control information used to indicate the scheduling of the at least two carriers, the carrier, the carrier information, the first signaling, the second signaling, the first configuration information, the second configuration information, etc. are as described above, and will not be repeated here.

[0126] The steps performed by the terminal device are corresponding to the steps performed by the network device in the network device side embodiments, and thus the beneficial effects corresponding to the network device side embodiments can be achieved, and will not be repeated here.

[0127] It should be noted that any of the above embodiments can be implemented alone or in combination with any of the above embodiments, and the present application does not limit the combination.

[0128] It can be understood that the operations and steps implemented by the terminal device in the above embodiments can also be implemented by components (such as chips or circuits) that can be used for the terminal device, and the present application does not limit this. The operations and steps implemented by the network device can also be implemented by components (such as chips or circuits) that can be used for the network device, and the present application does not limit this.

[0129] Figure 6 The structure schematic diagram of the information transmission device provided by an embodiment of the present application. As shown in Figure 6 ​As shown in the figure, the information transmission apparatus 60 can be a network device, or a component (for example, an integrated circuit, a chip, etc.) of the network device, or other communication modules, for implementing the operations corresponding to the network device in any of the above-mentioned embodiments. The information transmission apparatus 60 of the embodiment comprises a processing module 61 and a sending module 62. The information transmission apparatus 60 of the embodiment can implement the solutions of the network device in any of the above-mentioned embodiments through the processing module 61 and the sending module 62, and the implementation principles and technical effects are similar, which will not be repeated here.

[0130] Figure 7 The structural schematic diagram of the information transmission apparatus provided in another embodiment of the application is shown in the figure. Figure 7 As shown in the figure, the information transmission apparatus 70 can be a terminal device, or a component (for example, an integrated circuit, a chip, etc.) of the terminal device, or other communication modules, for implementing the operations corresponding to the terminal device in any of the above-mentioned embodiments. The information transmission apparatus 70 of the embodiment comprises a receiving module 71 and a processing module 72. The information transmission apparatus 70 of the embodiment can implement the solutions of the terminal device in any of the above-mentioned embodiments through the receiving module 71 and the processing module 72, and the implementation principles and technical effects are similar, which will not be repeated here.

[0131] Figure 8 The structural schematic diagram of the communication device provided in an embodiment of the application is shown in the figure. Figure 8 As shown in the figure, the communication device 80 described in the embodiment can be the terminal device (or a component applicable to the terminal device) or the network device (or a component applicable to the network device) mentioned in the foregoing method embodiments. The communication device 80 can be used to implement the methods corresponding to the terminal device or the network device described in the above-mentioned method embodiments, for details, refer to the descriptions in the above-mentioned method embodiments.

[0132] The communication device 80 can comprise one or more processors 81, which can also be referred to as processing units, and can implement certain control or processing functions. The processor 81 can be a general-purpose processor or a special-purpose processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device, execute software programs, and process data of the software programs.

[0133] In a possible design, the processor 81 can also store instructions 83 or data (for example, intermediate data). Wherein, the instructions 83 can be run by the processor 81, so that the communication device 80 executes the methods corresponding to the terminal device or the network device described in the above-mentioned method embodiments.

[0134] In yet another possible design, the communication device 80 can include circuitry that can implement the functions of transmitting or receiving or communicating in the aforementioned method embodiments.

[0135] In one possible implementation, the communication device 80 can include one or more memories 82 that can store instructions 84 that can be executed on the processor 81 to cause the communication device 80 to perform the methods described in the aforementioned method embodiments.

[0136] In one possible implementation, the memory 82 can also store data. The processor 81 and the memory 82 can be separately arranged or integrated together.

[0137] In one possible implementation, the communication device 80 can further include a transceiver 85 and / or an antenna 86. The processor 81 can be referred to as a processing unit, which controls the communication device 80 (terminal device or core network device or radio access network device). The transceiver 85 can be referred to as a transceiving unit, transceiver, transceiving circuitry, or transceiver, which implements the transceiving functions of the communication device 80.

[0138] In one design, if the communication device 80 is configured to implement the operations of the terminal device in the aforementioned embodiments, for example, the transceiver 85 can receive control information indicating data scheduling of at least two carriers. The processor 81 can perform data transmission according to the control information.

[0139] The specific implementation process of the processor 81 and the transceiver 85 can be referred to the related descriptions in the aforementioned embodiments, which will not be repeated here.

[0140] In another design, if the communication device 80 is configured to implement the operations of the network device in the aforementioned embodiments, for example, the processor 81 can generate control information indicating data scheduling of at least two carriers. The transceiver 85 can transmit the control information.

[0141] The specific implementation process of the processor 81 and the transceiver 85 can be referred to the related descriptions in the aforementioned embodiments, which will not be repeated here.

[0142] The processor 81 and the transceiver 85 described in the present application can be implemented on an IC (Integrated Circuit), an analog integrated circuit, an RFIC (Radio Frequency Integrated Circuit), a mixed signal integrated circuit, an ASIC (Application Specific Integrated Circuit), a PCB (Printed Circuit Board), an electronic device, and the like. The processor 81 and the transceiver 85 can also be manufactured using various integrated circuit technology, such as CMOS (Complementary Metal Oxide Semiconductor), NMOS (N Metal-Oxide-Semiconductor), PMOS (Positive channel Metal Oxide Semiconductor), BJT (Bipolar Junction Transistor), BiCMOS (Bipolar CMOS), SiGe, GaAs, and the like.

[0143] Although the information transmission apparatus is described by taking the terminal device or the network device as an example in the above embodiment description, the range of the information transmission apparatus described in the present application is not limited to the above terminal device or network device, and the structure of the information transmission apparatus can not be limited by Figure 8 the above description. The information transmission apparatus can be a stand-alone device or can be a part of a larger device.

[0144] The embodiments of the present application further provide a communication system, comprising: the terminal device in any of the method embodiments above; and the network device in any of the method embodiments above.

[0145] The embodiments of the present application further provide a readable storage medium, which stores a computer program; the computer program is executed to implement the operation of any of the method embodiments above.

[0146] The embodiments of the present application further provide a program product, which comprises a computer program, the computer program is stored in a readable storage medium, a processor can read the computer program from the readable storage medium, and the processor executes the computer program to implement the operation of any of the method embodiments above.

[0147] Those skilled in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction related hardware. The foregoing program can be stored in a computer readable storage medium. The program executes the steps of the above-mentioned method embodiments when executed; and the foregoing storage medium includes ROM, RAM, magnetic disc or optical disc and various storage medium capable of storing program codes.

[0148] It should be understood that, although each step in the flowchart in the above-mentioned embodiments is displayed in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless explicitly stated herein, the execution of these steps is not strictly limited in sequence, and they can be executed in other sequences. Moreover, at least part of the steps in the figure can include multiple sub-steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence is not necessarily sequential, but can be executed in rotation or alternation with at least part of other steps or sub-steps or stages of other steps.

[0149] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An information transmission method applied to a network device, comprising the following steps: S10. Generate control information, the control information being used to instruct data scheduling for at least two carriers; S30. Send the control information; The control information includes first configuration information, which is used to indicate whether the control information includes carrier information of the at least two carriers. Wherein, the at least two carriers include a first carrier and a second carrier: When the first configuration information indicates that the control information includes carrier information of at least two carriers, the control information also includes carrier information of the first carrier and carrier information of the second carrier; And / or, when the first configuration information indicates that the control information does not contain carrier information of the at least two carriers, the control information also contains carrier information of the first carrier; Prior to step S30, the method further includes: Send a first signaling message, which is used to indicate the length of the carrier information of the second carrier; Wherein, if the carrier information configuration of the second carrier is the same as the carrier information configuration of the corresponding first carrier, then the first signaling indicates that the length of the carrier information configuration of the second carrier is zero; and / or, If the carrier information configuration of the second carrier is different from the carrier information configuration of the corresponding first carrier, then the first signaling indicates that the length of the carrier information configuration of the second carrier is non-zero.

2. The method according to claim 1, wherein, Step S30 includes: The control information is transmitted in the search space corresponding to any one of the at least two carriers.

3. The method according to claim 1, wherein, The first signaling includes: Media Access Control-Control Unit signaling and / or Radio Resource Control signaling.

4. The method according to any one of claims 1 to 3, wherein, Of the at least two carriers, each carrier has a different frequency band.

5. The method according to any one of claims 1 to 3, wherein, The control information is carried by radio resource control signaling.

6. The method according to any one of claims 1 to 3, wherein, Prior to step S30, the following is also included: S20. Send a second signaling message, the second signaling message being used to indicate whether the control information includes data scheduling for at least two carriers.

7. The method according to claim 6, wherein, The second signaling includes second configuration information, which indicates whether the control information indicates data scheduling for at least two carriers.

8. The method according to claim 6, wherein, The at least two carriers include a first carrier and a second carrier, and the second signaling contains identification information of the second carrier.

9. The method according to claim 1, wherein, The carrier information includes at least one of the following: Bandwidth portion indication, frequency domain resource configuration, time domain resource configuration, hybrid automatic repeat request process number, transmit power control command for scheduling physical uplink control channels, physical uplink control channel resource indication, physical downlink shared channel to hybrid automatic repeat request-feedback timing indicator, new feedback indication and channel sounding reference signal request.

10. An information transmission method, applied to a terminal device, comprising: S100: Receive control information, the control information being used to instruct data scheduling for at least two carriers; S200: Data transmission is performed according to the control information; The control information includes first configuration information, which is used to indicate whether the control information includes carrier information of at least two carriers. Wherein, the at least two carriers include a first carrier and a second carrier; When the first configuration information indicates that the control information includes carrier information of at least two carriers, the control information also includes carrier information of the first carrier and carrier information of the second carrier; Prior to step S100, the method further includes: Receive a first signaling message, which is used to indicate the length of the carrier information of the second carrier; Wherein, if the carrier information configuration of the second carrier is the same as the carrier information configuration of the corresponding first carrier, then the first signaling indicates that the length of the carrier information configuration of the second carrier is zero; and / or, If the carrier information configuration of the second carrier is different from the carrier information configuration of the corresponding first carrier, then the first signaling indicates that the length of the carrier information configuration of the second carrier is non-zero.

11. The method according to claim 10, wherein, Step S100 includes: Search for control information in the search space corresponding to the carrier. If the control information is found, receive the control information; and / or, If the control information cannot be found, the control information will not be received.

12. The method according to claim 10, wherein, After receiving the control information, the terminal device will no longer search for control information in the search space corresponding to the carrier.

13. The method according to claim 10, wherein, The first signaling includes: Media Access Control-Control Unit signaling and / or Radio Resource Control signaling.

14. The method according to any one of claims 10 to 13, wherein, Of the at least two carriers, each carrier has a different frequency band.

15. The method according to any one of claims 10 to 13, wherein, The control information is carried by radio resource control signaling.

16. The method according to any one of claims 10 to 13, wherein, Prior to step S100, the following is also included: S000: Receive a second signaling message, the second signaling message being used to indicate whether the control information contains data scheduling for at least two carriers.

17. The method according to claim 16, wherein, The second signaling includes second configuration information, which indicates whether the control information indicates data scheduling for at least two carriers.

18. The method according to claim 16, wherein, The at least two carriers include a first carrier and a second carrier, and the second signaling contains identification information of the second carrier.

19. The method according to claim 10, wherein, The carrier information includes at least one of the following: Bandwidth portion indication, frequency domain resource configuration, time domain resource configuration, hybrid automatic repeat request process number, transmit power control command for scheduling physical uplink control channels, physical uplink control channel resource indication, physical downlink shared channel to hybrid automatic repeat request-feedback timing indicator, new feedback indication and channel sounding reference signal request.

20. A communication device, wherein, include: Memory and processor; The memory is used to store program instructions; The processor is used to invoke program instructions in the memory to perform the method as described in any one of claims 1 to 19.

21. A readable storage medium, wherein, The readable storage medium stores a computer program; when the computer program is executed, it implements the method as described in any one of claims 1 to 19.

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