Carrier determination method and device, equipment and storage medium

Abstract

The invention discloses a carrier determination method and device, equipment and a storage medium, and relates to the field of mobile communication. The method comprises the following steps: receiving downlink control information (DCI), wherein the DCI comprises carrier indication information; and determining a carrier corresponding to data transmission scheduled by the DCI according to the format of the DCI and / or the carrier indication information, the carrier being a plurality of carriers or one of the plurality of carriers, and determining whether to simultaneously schedule the plurality of carriers or schedule one of the plurality of carriers based on the DCI, thereby not only reducing the transmission quantity of the DCI, but also improving the transmission efficiency of the DCI. Moreover, the method for determining the scheduled carrier is expanded, and the accuracy of determining the scheduled carrier is improved.

Description

Technical Field

[0001] This application relates to the field of mobile communications, and in particular to a carrier determination method, apparatus, device, and storage medium. Background Technology

[0002] In NR (New Radio) systems, network devices configure different DCI (Downlink Control Information) formats for terminal devices to meet the different scheduling needs of the network devices.

[0003] Network devices configure carrier configuration information for terminal devices, and the carrier configuration information includes a DCI format for scheduling a carrier. In order to prevent the transmission of CRS (Cell Reference Signal) in the 4G (4th generation mobile communication technology) system from conflicting with the transmission of DCI in the NR system, a method is proposed for network devices to schedule multiple carriers for data transmission using a new DCI format to reduce DCI transmission and thus reduce conflicts. Therefore, a method for determining the carrier for DCI scheduling is urgently needed. Summary of the Invention

[0004] This application provides a carrier determination method, apparatus, device, and storage medium. Based on DCI (Distributed Carrier Indicator), it determines whether to schedule one carrier or multiple carriers simultaneously. This not only reduces the DCI transmission volume but also expands the method for determining the scheduled carrier and improves the accuracy of carrier determination. The technical solution is as follows:

[0005] According to one aspect of this application, a carrier determination method is provided, applied to a terminal device, the method comprising:

[0006] Receive DCI, wherein the DCI includes carrier indication information;

[0007] Based on the format of the DCI and / or the carrier indication information, the carrier corresponding to the data transmission scheduled by the DCI is determined, wherein the carrier is one of multiple carriers or one of the multiple carriers.

[0008] According to one aspect of this application, a carrier determination method is provided, applied to a network device, the method comprising:

[0009] Transmit a DCI, which includes carrier indication information;

[0010] The DCI format and / or the carrier indication information are used to indicate the carrier corresponding to the data transmission scheduled by the DCI, wherein the carrier is one of multiple carriers or one of the multiple carriers.

[0011] According to one aspect of this application, a carrier determination apparatus is provided, disposed in a terminal device, the apparatus comprising:

[0012] A receiving module is used to receive DCI, wherein the DCI includes carrier indication information;

[0013] The carrier determination module is used to determine the carrier corresponding to the data transmission scheduled by the DCI based on the format of the DCI and / or the carrier indication information, wherein the carrier is one of multiple carriers or one of the multiple carriers.

[0014] According to one aspect of this application, a carrier determination apparatus is provided, disposed in a network device, the apparatus comprising:

[0015] A transmitting module is used to transmit DCI, which includes carrier indication information;

[0016] The DCI format and / or the carrier indication information are used to indicate the carrier corresponding to the data transmission scheduled by the DCI, wherein the carrier is one of multiple carriers or one of the multiple carriers.

[0017] According to one aspect of this application, a terminal device is provided, the terminal device comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the carrier determination method as described above.

[0018] According to one aspect of this application, a network device is provided, the network device comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the carrier determination method as described above.

[0019] According to one aspect of this application, a computer-readable storage medium is provided, wherein executable program code is stored therein, the executable program code being loaded and executed by a processor to implement the carrier determination method as described above.

[0020] According to one aspect of this application, a chip is provided, the chip including programmable logic circuitry and / or program instructions, which, when the chip is operated on a terminal device or network device, are used to implement the carrier determination method as described above.

[0021] According to one aspect of this application, an embodiment of this application provides a computer program product that, when executed by a processor of a terminal device or a network device, is used to implement the carrier determination method described above.

[0022] The technical solutions provided in this application have at least the following beneficial effects:

[0023] The methods, apparatus, devices, and storage media provided in this application embodiment enable a terminal device to determine the carrier corresponding to the scheduled data transmission based on the DCI format and / or carrier indication information of the received DCI, and to determine whether to schedule multiple carriers simultaneously or one of the multiple carriers based on the DCI. This not only reduces the amount of DCI transmission, but also expands the method for determining the scheduled carrier and improves the accuracy of determining the scheduled carrier. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A block diagram of a communication system provided in an exemplary embodiment of this application is shown.

[0026] Figure 2 A flowchart of a carrier determination method provided in an exemplary embodiment of this application is shown.

[0027] Figure 3 A flowchart of a carrier determination method provided in an exemplary embodiment of this application is shown.

[0028] Figure 4 A flowchart of a carrier configuration method provided in an exemplary embodiment of this application is shown.

[0029] Figure 5 A flowchart illustrating a DCI format configuration method provided in an exemplary embodiment of this application is shown.

[0030] Figure 6 A flowchart of a carrier determination method provided in an exemplary embodiment of this application is shown.

[0031] Figure 7 A flowchart of a carrier configuration method provided in an exemplary embodiment of this application is shown.

[0032] Figure 8 A flowchart illustrating a DCI format configuration method provided in an exemplary embodiment of this application is shown.

[0033] Figure 9 A block diagram of a communication apparatus provided in an exemplary embodiment of this application is shown.

[0034] Figure 10 A block diagram of a communication apparatus provided in an exemplary embodiment of this application is shown.

[0035] Figure 11 A schematic diagram of the structure of a communication device provided in an exemplary embodiment of this application is shown. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0037] First, the application scenarios of this application will be explained:

[0038] Figure 1 A block diagram of a communication system provided in an exemplary embodiment of this application is shown. The communication system may include an access network 12 and a terminal device 13.

[0039] Access network 12 includes several network devices 120. Each network device 120 can be a base station, which is a device deployed in the access network to provide wireless communication functions for terminal devices. Base stations can include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems employing different wireless access technologies, the names of devices with base station functions may differ; for example, in LTE systems, they are called eNodeB or eNB; in 5G NR-U systems, they are called gNodeB or gNB. As communication technologies evolve, the description of "base station" may change. For convenience in this embodiment, the devices providing wireless communication functions for terminal device 13 are collectively referred to as access network devices.

[0040] Terminal device 13 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment, mobile stations (MS), terminal devices, etc. For ease of description, the devices mentioned above are collectively referred to as terminal devices. Network device 120 and terminal device 13 communicate with each other through some air interface technology, such as a Uu interface.

[0041] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-U system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Wireless Local Area Network (WLAN). Networks (WLAN), Wireless Fidelity (WiFi), next-generation communication systems, or other communication systems.

[0042] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, and vehicle-to-everything (V2X) systems. The embodiments of this application can also be applied to these communication systems.

[0043] Figure 2A flowchart of a carrier determination method provided in an exemplary embodiment of this application is shown, which is applied to, for example... Figure 1 In the terminal device and network device shown, the method includes at least some of the following:

[0044] Step 210: The network device sends the DCI.

[0045] Step 220: The terminal device receives the DCI.

[0046] In this embodiment, the network device sends a DCI to the terminal device to schedule the carrier for data transmission, and then the terminal device and the network device transmit data through the carrier.

[0047] In this context, the carrier scheduled by DCI can be one of multiple carriers or one of multiple carriers.

[0048] The DCI includes carrier indication information. This carrier indication information is used to indicate the carrier corresponding to the data transmission scheduled by the DCI. For example, the carrier indication information can be a carrier identifier or other types of information. If the carrier indication information is a carrier identifier, it can be 1, 2, 3 or other values, which is not limited in the embodiments of this application.

[0049] Step 230: The terminal device determines the carrier corresponding to the data transmission scheduled by the DCI based on the DCI format and / or carrier indication information.

[0050] The DCI includes DCI format indication information. The format of the DCI is determined based on the DCI size and the DCI format indication information. For example, the DCI may be 0_1, 1_1, or other formats; this embodiment does not limit the specific format. Furthermore, the DCI format corresponds to one or more carriers for the data transmission scheduled by the DCI.

[0051] The terminal device receives the DCI, determines the DCI format and / or carrier indication information based on the DCI, and then determines one or more carriers for the data transmission scheduled by the DCI.

[0052] It should be noted that the carrier corresponding to the data transmission scheduled by DCI can also be understood as the carrier on which the data transmission scheduled by DCI resides.

[0053] The terminal device determines the DCI format and / or carrier indication information included in the DCI sent by the network device. Based on the DCI format and / or carrier indication information, the carrier corresponding to the data transmission scheduled by the DCI can be determined.

[0054] This application provides a method for determining the carrier corresponding to scheduled data transmission. The terminal device determines the carrier corresponding to the scheduled data transmission based on the DCI format and / or carrier indication information of the received DCI. Based on the DCI, it determines whether to schedule multiple carriers simultaneously or one of the multiple carriers. This not only reduces the amount of DCI transmission but also expands the method for determining the scheduled carrier and improves the accuracy of determining the scheduled carrier.

[0055] exist Figure 2 Based on the illustrated embodiments, the number of carriers corresponding to the DCI-scheduled data transmission determined by the terminal device varies depending on the DCI format. Figure 3 A flowchart illustrating a carrier determination method provided in an exemplary embodiment of this application is shown. See also Figure 3 If the DCI format is the first DCI format, step 230 is replaced by step 330:

[0056] Step 330: The terminal device determines the multiple first carriers corresponding to the data transmission scheduled by the DCI based on the DCI format and / or carrier indication information.

[0057] The carrier indication information is used to determine a plurality of first carriers. In some embodiments, the DCI includes a carrier indication field that includes carrier indication information.

[0058] In this embodiment of the application, after receiving the DCI in the first DCI format, the terminal device determines that the data transmission scheduled by the DCI corresponds to multiple first carriers, and can determine the indicated multiple first carriers according to the carrier indication information.

[0059] In some embodiments, the correspondence between carrier indication information and carriers corresponding to DCI-scheduled data transmissions is configured by the network device. The network device configures the correspondence between carrier indication information and carriers corresponding to DCI-scheduled data transmissions for the terminal device, and the terminal device can determine multiple first carriers corresponding to the carrier indication information based on the correspondence configured by the network device.

[0060] In some embodiments, the DCI is a first DCI format, and the DCI corresponding to the first DCI format is used to schedule data transmission corresponding to multiple carriers. The first DCI format may be a new DCI format different from the DCI formats in the prior art, and the network device will configure whether the terminal device uses the first DCI format.

[0061] In some embodiments, carrier indication information is used to indicate a first carrier identifier, and the carrier identifier corresponding to each of the plurality of first carriers includes the first carrier identifier.

[0062] For example, the first carrier identifier can be 0, 1, 2, 3, or other values. Each first carrier identifier corresponds to multiple carriers.

[0063] For example, the multiple carriers corresponding to the first carrier identifier 1 are carrier A, carrier B, and carrier C. As another example, the multiple carriers corresponding to the first carrier identifier 2 are carrier A and carrier D.

[0064] In some embodiments, when the carrier indication information indicates a second carrier identifier, the plurality of second carriers corresponding to the second carrier identifier are not exactly the same as the plurality of first carriers.

[0065] In this embodiment of the application, the first carrier identifier corresponds to multiple carriers, and the second carrier identifier corresponds to multiple carriers. At least one of the multiple carriers corresponding to different carrier identifiers is different. That is, the multiple second carriers corresponding to the second carrier identifier are not completely the same as the multiple first carriers. This prevents the situation where different first carrier identifiers correspond to the same multiple carriers and improves the accuracy of the first carrier identifier configured by the network device.

[0066] For example, the first carrier identifier corresponds to multiple carriers, namely carrier A, carrier B, and carrier C. As another example, the first carrier identifier 2 corresponds to multiple carriers, namely carrier A and carrier D. Both the first carrier identifier 1 and the second carrier identifier 2 correspond to carrier A, but the carriers B and C corresponding to the first carrier identifier are different from the carrier D corresponding to the second carrier identifier 2.

[0067] In some embodiments, the first carrier identifier is also used to determine the candidate PDCCH (Physical Downlink Control Channel) where the DCI is located.

[0068] In this embodiment of the application, the network device configures a first carrier identifier for the terminal device. The first carrier identifier also indicates the PDCCH candidate where the DCI is located. The terminal determines the PDCCH candidate based on the first carrier identifier and detects the DCI on the determined PDCCH candidate.

[0069] For example, the network device configures a new DCI format for the terminal device, and carriers 1, 2, and 3 are simultaneously scheduled using the new DCI format. It is also explained that the first carrier identifier 5 is used for scheduling carriers 1 and 2 using the new DCI format, and the first carrier identifier 6 is used for scheduling carriers 1 and 3 using the new DCI format.

[0070] The terminal device determines the PDCCH candidate where the DCI of simultaneously scheduling carrier 1 and carrier 2 is located based on the first carrier identifier 5, and determines the PDCCH candidate where the DCI of simultaneously scheduling carrier 1 and carrier 3 is located based on the first carrier identifier 6.

[0071] The terminal device can determine the PDCCH candidate for DCI based on the first carrier identifier configured by the network device. The terminal device detects the DCI sent by the network device on the determined PDCCH candidate. Since the terminal device will not detect DCI at other PDCCH resource locations, it saves terminal device resources and thus improves resource utilization.

[0072] Furthermore, by using the same first carrier identifier to determine the PDCCH candidate for DCI data transmission that schedules multiple carriers, the situation where the PDCCH candidate cannot be determined when scheduling multiple carriers is prevented, thereby improving the accuracy of the PDCCH candidate determined by the terminal device.

[0073] It should be noted that the embodiments in this application only illustrate how a terminal device determines multiple first carriers for DCI-scheduled data transmission. In another embodiment, the correspondence between carrier indication information and carriers corresponding to DCI-scheduled data transmission is configured by the network device. The network device configures carrier identifiers for multiple carriers for the terminal device. Figure 3 Based on the embodiments shown, Figure 4 A flowchart illustrating a carrier configuration method provided in an exemplary embodiment of this application is shown. See also: Figure 4 The method includes:

[0074] Step 410: The network device sends the first configuration information.

[0075] Step 420: The terminal device receives the first configuration information.

[0076] Step 430: The terminal device determines the first carrier identifier based on the first configuration information configured by the network device.

[0077] In this embodiment, the first carrier identifier corresponds to multiple carriers. The network device sends first configuration information to the terminal device to configure at least one first carrier identifier for the terminal device. The terminal device receives a Data Interchange Component (DCI) and determines the first carrier identifier of the DCI based on the DCI and the first configuration information. The network device configures multiple first carrier identifiers for the terminal device using the first configuration information and schedules multiple carriers based on the configured first carrier identifiers.

[0078] In another embodiment, the network device configures the DCI format for the terminal device. Figure 4 Based on the illustrated embodiment, Figure 5A flowchart illustrating a DCI format configuration method provided in an exemplary embodiment of this application is shown. See also: Figure 5 The method includes:

[0079] Step 510: The network device sends the second configuration information.

[0080] Step 520: The terminal device receives the second configuration information.

[0081] Step 530: The terminal device determines the first DCI format based on the second configuration information configured by the network device.

[0082] In this embodiment, the network device not only configures a first carrier identifier corresponding to multiple carriers for the terminal device, but also configures second configuration information for the terminal device, uses the second configuration information to configure a first DCI format for the terminal device, and uses the first DCI format to schedule data transmission on multiple carriers.

[0083] In some embodiments, the network device configures a first carrier identifier and a first DCI format for the terminal device, wherein multiple carriers corresponding to the first carrier identifier can be scheduled by the DCI of the first DCI format.

[0084] For example, if the multiple carriers corresponding to the first carrier identifier are carrier A, carrier B and carrier C respectively, and the network device also configures the first DCI format for the terminal device, then it means that carrier A, carrier B and carrier C can all be scheduled by the DCI of the first DCI format.

[0085] It should be noted that the embodiments in this application are only illustrated by using a network device configuring a DCI format for a terminal as an example. In another embodiment, the first DCI format configured by the network device corresponds to the type of the first carrier identifier. For example, if the first DCI format is used to schedule data transmission on multiple carriers, then the first carrier identifier is a carrier identifier of the first type. The carrier identifier of the first type indicates multiple carriers.

[0086] This application provides a method for determining the carrier corresponding to scheduled data transmission. The terminal device determines multiple first carriers corresponding to the scheduled data transmission based on the received DCI format and / or carrier indication information. Based on the DCI, multiple carriers are simultaneously scheduled, which not only reduces the amount of DCI transmission but also expands the method for determining the scheduled carrier and improves the accuracy of determining the scheduled carrier.

[0087] The following examples illustrate the use of examples in this application. Figure 2 and Figure 3 The examples are described below.

[0088] The network device configures a first carrier identifier 5 for the terminal device, and the first carrier identifier 5 corresponds to carrier 1 and carrier 2. The network device also configures a first carrier identifier 6 for the terminal device, and the first carrier identifier 6 corresponds to carrier 1 and carrier 3.

[0089] The network device configures the terminal device with a new DCI format, and carriers 1, 2 and 3 are simultaneously scheduled by the new DCI format.

[0090] This also indicates that the first carrier identifier 5 is used for the new format DCI scheduling carriers 1 and 2, and the first carrier identifier 6 is used for the new format DCI scheduling carriers 1 and 3.

[0091] When a terminal device detects a DCI in the new DCI format, if the first carrier identifier included in the carrier indication information of the DCI is 5, then the DCI simultaneously schedules data transmission on carrier 1 and carrier 2. If the first carrier identifier included in the carrier indication information of the DCI is 6, then the DCI simultaneously schedules data transmission on carrier 1 and carrier 3.

[0092] exist Figure 2 Based on the illustrated embodiments, the number of carriers corresponding to the DCI-scheduled data transmission determined by the terminal device varies depending on the DCI format. Figure 6 A flowchart illustrating a carrier determination method provided in an exemplary embodiment of this application is shown. See also Figure 6 If the DCI format is the second DCI format, step 230 is replaced by step 630:

[0093] Step 630: The terminal device determines a third carrier corresponding to the data transmission scheduled by the DCI based on the DCI format and / or carrier indication information.

[0094] The carrier indication information is used to determine the third carrier. In some embodiments, the DCI includes a carrier indication field that includes carrier indication information.

[0095] In this embodiment of the application, after receiving the DCI in the second DCI format, the terminal device determines a third carrier corresponding to the data transmission scheduled by the DCI, and can determine an indicated third carrier according to the carrier indication information.

[0096] In some embodiments, the correspondence between carrier indication information and carriers corresponding to DCI-scheduled data transmissions is configured by the network device. The network device configures the correspondence between carrier indication information and carriers corresponding to DCI-scheduled data transmissions for the terminal device, and the terminal device can determine a third carrier corresponding to the carrier indication information based on the correspondence configured by the network device.

[0097] In some embodiments, the DCI is a second DCI format, and the DCI corresponding to the second DCI format is used to schedule data transmission for a carrier. The second DCI format may be a new DCI format different from the DCI formats in the prior art, and the network device will configure whether the terminal device uses the second DCI format.

[0098] In some embodiments, carrier indication information is used to indicate a third carrier identifier, and the carrier identifier corresponding to the third carrier includes the third carrier identifier.

[0099] For example, the third carrier can be identified as 0, 1, 2, 3, or other values.

[0100] For example, the third carrier identifier 1 corresponds to a third carrier A. As another example, the third carrier identifier 2 corresponds to a third carrier D.

[0101] In some embodiments, the third carrier identifier is also used to determine the PDCCH candidate where the DCI is located.

[0102] In this embodiment of the application, after the network device configures a third carrier identifier for the terminal device, the third carrier identifier also indicates the PDCCH candidate where the DCI is located. The terminal determines the PDCCH candidate based on the third carrier identifier and detects the DCI on the determined PDCCH candidate.

[0103] For example, the network device configures a third carrier identifier 2 for the terminal device, and this third carrier identifier 2 corresponds to carrier F. The network device also configures a third carrier identifier 4 for the terminal device, and this third carrier identifier 4 corresponds to carrier M. Additionally, the network device configures a third carrier identifier 3 for the terminal device, and this third carrier identifier 3 corresponds to carrier N.

[0104] The terminal device determines the PDCCH candidate where the DCI of the scheduling carrier F is located based on the third carrier identifier 2. It determines the PDCCH candidate where the DCI of the scheduling carrier M is located based on the third carrier identifier 4. It determines the PDCCH candidate where the DCI of the scheduling carrier N is located based on the third carrier identifier 3.

[0105] The terminal device can determine the PDCCH candidate where the DCI is located based on the third carrier identifier configured by the network device. The terminal device detects the DCI sent by the network device on the determined PDCCH candidate. Since the terminal device will not detect the DCI at other PDCCH resource locations, it saves terminal device resources and thus improves resource utilization.

[0106] It should be noted that the embodiments in this application only illustrate how a terminal device determines a third carrier for DCI-scheduled data transmission. In another embodiment, the correspondence between carrier indication information and the carrier corresponding to the DCI-scheduled data transmission is configured by the network device. The network device configures carrier identifiers for multiple carriers for the terminal device. Figure 7 A flowchart illustrating a carrier configuration method provided in an exemplary embodiment of this application is shown. See also: Figure 7 The method includes:

[0107] Step 710: The network device sends third configuration information.

[0108] Step 720: The terminal device receives the third configuration information.

[0109] Step 730: The terminal device determines the third carrier identifier based on the third configuration information configured by the network device.

[0110] In this embodiment, a third carrier identifier corresponds to one carrier. The network device sends third configuration information to the terminal device to configure at least one third carrier identifier for the terminal device. The terminal device receives a third carrier identifier (DCI) and determines the third carrier identifier of the DCI based on the DCI and the third configuration information. The network device configures multiple third carrier identifiers for the terminal device using the third configuration information and schedules one carrier based on the configured third carrier identifier.

[0111] In another embodiment, the network device configures the DCI format for the terminal device. Figure 8 A flowchart illustrating a DCI format configuration method provided in an exemplary embodiment of this application is shown. See also Figure 8 The method includes:

[0112] Step 810: The network device sends the fourth configuration information.

[0113] Step 820: The terminal device receives the fourth configuration information.

[0114] Step 830: The terminal device determines the second DCI format based on the fourth configuration information configured by the network device.

[0115] In this embodiment, the network device not only configures a third carrier identifier corresponding to a carrier for the terminal device, but also configures a fourth configuration information for the terminal device. The fourth configuration information is used to configure a second DCI format for the terminal device, and the second DCI format is used to schedule data transmission on a third carrier.

[0116] In some embodiments, after the network device configures a third carrier identifier and a second DCI format for the terminal device, a carrier corresponding to the third carrier identifier is scheduled by the DCI of the second DCI format.

[0117] For example, if the carrier corresponding to the third carrier identifier is carrier A, and the network device also configures the terminal device with the second DCI format, then it means that carrier A can be scheduled by the DCI of the second DCI format.

[0118] The method provided in this application embodiment configures a third carrier identifier corresponding to a carrier for a terminal device in the network device, and determines a scheduled carrier through the DCI format included in the DCI and the third carrier identifier included in the carrier indication information, so as to ensure that the network device can normally schedule the carrier for communication with the terminal device and improve the communication effect.

[0119] The following examples illustrate the use of examples in this application. Figure 2 and Figure 6 The examples are described below.

[0120] The network device configures a third carrier identifier 2 for the terminal device, and this third carrier identifier 2 corresponds to carrier 1. The network device also configures a third carrier identifier 4 for the terminal device, and this third carrier identifier 4 corresponds to carrier 2. Additionally, the network device configures a third carrier identifier 3 for the terminal device, and this third carrier identifier 3 corresponds to carrier 3.

[0121] The network device configures the terminal device with DCI format 0_1, as well as carrier 1, carrier 2, and carrier 3. Carrier 1 is scheduled using DCI format 0_1, carrier 2 is scheduled using DCI format 0_1, and carrier 3 is scheduled using DCI format 0_1. It also indicates that third carrier identifier 2, third carrier identifier 4, and third carrier identifier 3 are used for DCI scheduling of carrier 1, carrier 2, and carrier 3 in format 0_1, respectively.

[0122] When the terminal device detects a DCI with format 0_1, if the third carrier identifier in the DCI is 2, the DCI schedules data transmission on carrier 1; if the third carrier identifier in the DCI is 4, the DCI schedules data transmission on carrier 2.

[0123] It should be noted that the embodiments in this application are only illustrated by using the example of configuring the DCI format for a terminal by a network device. In another embodiment, the second DCI format configured by the network device corresponds to the type of the third carrier identifier. For example, if the second DCI format is used to schedule data transmission on a carrier, then the third carrier identifier is a second-type carrier identifier. This second-type carrier identifier indicates a carrier.

[0124] It should be noted that the above embodiments are all described using either the first carrier identifier or the third carrier identifier as examples. The following description will use both the first carrier identifier and the third carrier identifier to illustrate this application.

[0125] For example, network equipment configures terminal equipment with DCI format 0_1, a new DCI format, and carriers 1, 2, and 3. Carriers 1, 2, and 3 are scheduled using DCI format 0_1, while carriers 1 and 2 are simultaneously scheduled using the new DCI format. The first carrier identifier 5 is used for scheduling carriers 1 and 2 in the new DCI format, the first carrier identifier 6 is used for scheduling carriers 1 and 3 in the new DCI format, and the third carrier identifiers 2, 4, and 3 are used for scheduling carriers 1, 2, and 3 using DCI format 0_1, respectively.

[0126] When the terminal device detects a DCI with format 0_1, if the carrier identifier in the DCI is the third carrier identifier 2, then the DCI schedules data transmission on carrier 1; if the carrier identifier in the DCI is the third carrier identifier 4, then the DCI schedules data transmission on carrier 2. Furthermore, the carrier identifier in the DCI cannot be the first carrier identifier 5 or the first carrier identifier 6.

[0127] When the terminal device detects a DCI in the new DCI format, if the carrier identifier in the DCI is the first carrier identifier 5, then the DCI simultaneously schedules data transmission on carrier 1 and carrier 2. If the carrier identifier in the DCI is the first carrier identifier 6, then the DCI simultaneously schedules data transmission on carrier 1 and carrier 3. Furthermore, the carrier identifier in the DCI cannot be the third carrier identifier 2, the third carrier identifier 3, or the third carrier identifier 4.

[0128] In addition, the first carrier identifier and the third carrier identifier in the embodiments of this application are also used to determine the PDCCH candidate where the DCI of the scheduling carrier is located.

[0129] For example, the terminal device determines the PDCCH candidate where the DCI of simultaneously scheduled carrier 1 and carrier 2 is located based on the first carrier identifier 5, and determines the PDCCH candidate where the DCI of simultaneously scheduled carrier 1 and carrier 3 is located based on the first carrier identifier 6. The terminal device determines the PDCCH candidate where the DCI of scheduled carrier 1 is located based on the third carrier identifier 2. The terminal device determines the PDCCH candidate where the DCI of scheduled carrier 2 is located based on the third carrier identifier 4. The terminal device determines the PDCCH candidate where the DCI of scheduled carrier 3 is located based on the third carrier identifier 3.

[0130] It should be noted that the first carrier identifier and the third carrier identifier in the above example are different carrier identifiers. However, in another embodiment, the first carrier identifier and the third carrier identifier can also be the same carrier identifier.

[0131] For example, network equipment configures terminal equipment with DCI format 0_1, a new DCI format, and carriers 1, 2, and 3. Carriers 1, 2, and 3 are scheduled using DCI format 0_1, while carriers 1 and 2 are simultaneously scheduled using the new DCI format. A first carrier identifier 5 is used for scheduling carriers 1 and 2 using the new DCI format, a third carrier identifier 5 is used for scheduling carrier 1 using DCI format 0_1, and a third carrier identifier 4 is used for scheduling carrier 2 using DCI format 0_1.

[0132] When the terminal device detects a DCI with format 0_1, if the carrier identifier in the DCI is the third carrier identifier 5, then the DCI schedules data transmission on carrier 1; if the carrier identifier in the DCI is the third carrier identifier 4, then the DCI schedules data transmission on carrier 2.

[0133] When a terminal device detects a DCI in the new DCI format, if the carrier identifier in the DCI is 5, then the DCI simultaneously schedules data transmission on carrier 1 and carrier 2.

[0134] In addition, the first carrier identifier and the third carrier identifier in the embodiments of this application are also used to determine the PDCCH candidate where the DCI of the scheduling carrier is located.

[0135] The terminal device determines the PDCCH candidate where the DCI of both carrier 1 and carrier 2 are located based on the first carrier identifier 5.

[0136] The terminal device determines the PDCCH candidate where the DCI of the separately scheduled carrier 1 is located based on the third carrier identifier 5.

[0137] The terminal device determines the PDCCH candidate where the DCI of the separately scheduled carrier 2 is located based on the third carrier identifier 4.

[0138] Figure 9 A block diagram of a carrier determination apparatus provided in an exemplary embodiment of this application is shown. The apparatus is disposed in a terminal device and includes:

[0139] Receiver module 901 is used to receive DCI, wherein the DCI includes carrier indication information;

[0140] The carrier determination module 902 is used to determine the carrier corresponding to the data transmission scheduled by the DCI according to the format of the DCI and / or the carrier indication information, wherein the carrier is one of multiple carriers or one of the multiple carriers.

[0141] In some embodiments, the DCI is in the format of a first DCI format, the data transmission scheduled by the DCI corresponds to a plurality of first carriers, and the carrier indication information is used to determine the plurality of first carriers.

[0142] In some embodiments, the carrier indication information is used to indicate a first carrier identifier, and the carrier identifier corresponding to each of the plurality of first carriers includes the first carrier identifier.

[0143] In some embodiments, when the carrier indication information indicates a second carrier identifier, the plurality of second carriers corresponding to the second carrier identifier are not exactly the same as the plurality of first carriers.

[0144] In some embodiments, the first carrier identifier is further used to determine the PDCCH candidate where the DCI is located.

[0145] In some embodiments, the DCI is in a second DCI format, the data transmission scheduled by the DCI corresponds to a third carrier, and the carrier indication information is used to determine the third carrier.

[0146] In some embodiments, the carrier indication information is used to indicate a third carrier identifier, and the carrier identifier corresponding to the third carrier includes the third carrier identifier.

[0147] In some embodiments, the third carrier identifier is also used to determine the PDCCH candidate where the DCI is located.

[0148] In some embodiments, the correspondence between the carrier indication information and the carrier corresponding to the data transmission scheduled by the DCI is configured by the network device.

[0149] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules when implementing its functions. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0150] Figure 10 A block diagram of a carrier determination apparatus provided in an exemplary embodiment of this application is shown. The apparatus is disposed in a network device and includes:

[0151] Transmission module 1001 is used to transmit DCI, wherein the DCI includes carrier indication information;

[0152] The DCI format and / or the carrier indication information are used to indicate the carrier corresponding to the data transmission scheduled by the DCI, wherein the carrier is one of multiple carriers or one of the multiple carriers.

[0153] In some embodiments, the DCI is in the format of a first DCI format, the data transmission scheduled by the DCI corresponds to a plurality of first carriers, and the carrier indication information is used to determine the plurality of first carriers.

[0154] In some embodiments, the carrier indication information is used to indicate a first carrier identifier, and the carrier identifier corresponding to each of the plurality of first carriers includes the first carrier identifier.

[0155] In some embodiments, when the carrier indication information indicates a second carrier identifier, the plurality of second carriers corresponding to the second carrier identifier are not exactly the same as the plurality of first carriers.

[0156] In some embodiments, the first carrier identifier is further used to determine the PDCCH candidate where the DCI is located.

[0157] In some embodiments, the DCI is in a second DCI format, the data transmission scheduled by the DCI corresponds to a third carrier, and the carrier indication information is used to determine the third carrier.

[0158] In some embodiments, the carrier indication information is used to indicate a third carrier identifier, and the carrier identifier corresponding to the third carrier includes the third carrier identifier.

[0159] In some embodiments, the third carrier identifier is also used to determine the PDCCH candidate where the DCI is located.

[0160] In some embodiments, the correspondence between the carrier indication information and the carrier corresponding to the data transmission scheduled by the DCI is configured by the network device.

[0161] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules when implementing its functions. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0162] Figure 11 The diagram shows a schematic representation of a communication device provided in an exemplary embodiment of this application. The communication device includes a processor 1101, a receiver 1102, a transmitter 1103, a memory 1104, and a bus 1105.

[0163] The processor 1101 includes one or more processing cores. The processor 1101 executes various functional applications and information processing by running software programs and modules.

[0164] The receiver 1102 and the transmitter 1103 can be implemented as a communication component, which can be a communication chip.

[0165] The memory 1104 is connected to the processor 1101 via the bus 1105.

[0166] The memory 1104 can be used to store at least one program code, and the processor 1101 is used to execute the at least one program code to implement the various steps in the above method embodiments.

[0167] Furthermore, the communication equipment can be a terminal device or a network device. The memory 1104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random-access memory (SRAM), read-only memory (ROM), magnetic storage, flash memory, and programmable read-only memory (PROM).

[0168] In an exemplary embodiment, a computer-readable storage medium is also provided, wherein executable program code is stored therein, the executable program code being loaded and executed by a processor to implement the carrier determination method performed by a communication device provided in the above-described method embodiments.

[0169] In an exemplary embodiment, a chip is provided, the chip including programmable logic circuitry and / or program instructions, which, when the chip is run on a terminal device or network device, are used to implement the carrier determination method as provided in the various method embodiments.

[0170] In an exemplary embodiment, a computer program product is provided, which, when executed by a processor of a terminal device or a network device, is used to implement the carrier determination method provided in the above-described method embodiments.

[0171] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0172] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A carrier wave determination device, characterized in that, The device, installed in a terminal device, includes: The receiving module is used to receive downlink control information (DCI), which includes carrier indication information. The carrier determination module is used to determine the carrier corresponding to the data transmission scheduled by the DCI based on the format of the DCI and / or the carrier indication information, wherein the carrier is one of multiple carriers or one of the multiple carriers.

2. The apparatus according to claim 1, characterized in that, The DCI format is a first DCI format, the data transmission scheduled by the DCI corresponds to multiple first carriers, and the carrier indication information is used to determine the multiple first carriers.

3. The apparatus according to claim 2, characterized in that, The carrier indication information is used to indicate the first carrier identifier, and the carrier identifier corresponding to each of the plurality of first carriers includes the first carrier identifier.

4. The apparatus according to claim 3, characterized in that, When the carrier indication information indicates a second carrier identifier, the plurality of second carriers corresponding to the second carrier identifier are not completely identical to the plurality of first carriers.

5. The apparatus according to any one of claims 2 to 4, characterized in that, The first carrier identifier is also used to determine the physical downlink control channel (PDCCH) candidate where the DCI is located.

6. A carrier wave determination device, characterized in that, The device, installed in a network device, includes: The transmitting module is used to transmit downlink control information (DCI), which includes carrier indication information. The DCI format and / or the carrier indication information are used to indicate the carrier corresponding to the data transmission scheduled by the DCI, wherein the carrier is one of multiple carriers or one of the multiple carriers.

7. The apparatus according to claim 6, characterized in that, The DCI format is a first DCI format, the data transmission scheduled by the DCI corresponds to multiple first carriers, and the carrier indication information is used to determine the multiple first carriers.

8. The apparatus according to claim 7, characterized in that, The carrier indication information is used to indicate the first carrier identifier, and the carrier identifier corresponding to each of the plurality of first carriers includes the first carrier identifier.

9. The apparatus according to claim 8, characterized in that, When the carrier indication information indicates a second carrier identifier, the plurality of second carriers corresponding to the second carrier identifier are not completely identical to the plurality of first carriers.

10. The apparatus according to any one of claims 7 to 9, characterized in that, The first carrier identifier is also used to determine the physical downlink control channel (PDCCH) candidate where the DCI is located.

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