A method and communication device for transmitting control information

Abstract

This application discloses a method and communication apparatus for transmitting control information, which reduces the number of blind detections of the PDCCH by the terminal, saves signaling overhead, and improves the flexibility of network-side device scheduling. The method includes: the terminal receiving a first message from a network device, the first message including multiple information blocks, these multiple information blocks including first type information blocks and second type information blocks; and the terminal determining the first type information blocks and the second type information blocks from the multiple information blocks; wherein the first type information blocks and the second type information blocks include at least one identical feature parameter, the feature parameter being used to indicate the transmission characteristics of each type of information block in the multiple information blocks, the feature parameter including attribute content, transmission period, and number of bits.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method and communication device for transmitting control information. Background Technology

[0002] Network-side devices can send downlink control information (DCI) to terminals, including scheduling information. Before sending DCI to terminals, network-side devices can pre-configure physical downlink control channel (PDCCH) candidates for each DCI via higher-layer signaling. To determine whether a DCI belongs to the terminal, the terminal needs to monitor the PDCCH candidate corresponding to the DCI to be received, which can also be understood as monitoring the DCI.

[0003] DCI includes various formats, such as DCI format 0_1, DCI format 1_0, and DCI format 2_x. It should be understood that a value of x represents a DCI format. Each DCI format can include multiple blocks. Network-side devices can configure or fix the information in each block and the number of bits occupied by each block. The total length (size) of each DCI is the sum of the number of bits in all the blocks included in that DCI. Since the number of bits in each block is configurable, the range of variation in the number of bits in each block is large, resulting in a large variation in the total length of each DCI. In other words, there are multiple DCIs of different sizes. This requires the terminal to perform blind checks on the PDCCH according to multiple sizes to determine whether its own DCI exists. Obviously, increasing the number of sizes leads to more frequent checks.

[0004] To reduce terminal complexity, the number of blind checks on the PDCCH can be reduced, especially for terminals with low complexity or reduced capability (REDCAP). Reducing the number of blind checks helps lower implementation complexity. In some embodiments, the number of different DCI sizes in each CSS can be reduced, for example, by setting the size of each DCI format 2_x to the same value. However, this approach increases redundant bits for some DCI formats, thus increasing resource overhead. Summary of the Invention

[0005] This application provides a method and communication device for transmitting control information, which reduces the number of blind detections at the terminal, saves signaling overhead, and improves the flexibility of network-side equipment scheduling.

[0006] Firstly, a method for transmitting control information is provided. This method can be executed by a first communication device, which can be a communication equipment or a communication device capable of supporting the functions required for the method to be implemented, such as a chip system. The following description uses the communication equipment as an example of a terminal. The method includes:

[0007] The terminal receives a first message from a network device, the first message including multiple information blocks, including information blocks of a first type and information blocks of a second type, and the terminal determines the information blocks of the first type and information blocks of the second type from the multiple information blocks; wherein the information blocks of the first type and information blocks of the second type include at least one identical feature parameter, the feature parameter being used to indicate the transmission characteristics of each type of information block in the multiple information blocks, the feature parameter including attribute content, transmission period and number of bits.

[0008] In this scheme, information blocks of type 1 and type 2 can be sent to the terminal together via a first message, such as a DCI. The information block of type 1 can be viewed as a block included in one DCI format, and the information block of type 2 can be viewed as a block included in another DCI format. That is, information from different DCI formats can be merged and transmitted through a single DCI. Because multiple DCI formats are merged, the number of DCI formats is reduced, which means the number of DCI sizes in the search space is reduced, thereby reducing the number of blind detections performed by the terminal and saving signaling overhead.

[0009] In one possible implementation, the type of the information block may indicate the function of the information block or the type of the transmission service corresponding to the information block; that is, the type includes the functional type of the information block and / or the service type of the information block.

[0010] For example, the function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function;

[0011] The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and vehicle networking.

[0012] For example, the aforementioned attribute content includes one or more of the following:

[0013] Serving cell information, partial bandwidth information, terminal information, carrier information, terminal supported bandwidth, latency requirements, reliability requirements, coverage area, terminal group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

[0014] In one possible implementation, the method further includes: the terminal receiving configuration information from a network device, the configuration information indicating that the first type of information block and the second type of information block include the same characteristic parameters. In this scheme, indicating the characteristic parameters of the two types of information blocks with a single configuration message saves signaling overhead compared to indicating the characteristic parameters of the two types of information blocks separately with two separate messages. Furthermore, the configuration information indicating that the first type of information block and the second type of information block include the same characteristic parameters implicitly indicates the basis for merging the first type of information block and the second type of information block, thereby allowing the terminal to determine which types of information blocks are included in these multiple information blocks based on the configuration information.

[0015] In this embodiment of the application, the first message includes multiple information blocks of various types. The network device can indicate to the terminal which of these multiple information blocks belong to the same type of information block, so that the terminal can accurately receive information blocks of each type.

[0016] For example, in one possible implementation, the method further includes: the terminal receiving first indication information from a network device, the first indication information including a location identifier used to indicate the starting position of each type of information block among the plurality of information blocks in the first message. This scheme can indicate the starting position of each type of information block among the plurality of information blocks in the first message through the first indication information, so that the terminal can determine the starting position of each type of information block according to the first indication information, and then receive the corresponding type of information block at the starting position of each type of information block, i.e., determine the first type of information block and the second type of information block.

[0017] For example, in one possible implementation, the method further includes: the terminal receiving second indication information from a network device, the second indication information including a first identifier, the first identifier being used to indicate a first type combination, wherein the first type combination includes information blocks of a first type and information blocks of a second type. This scheme can directly indicate which types of information blocks are combined using the second indication information. The network device can configure the multiple types of information blocks included in each type combination, for example, configuring the starting position of each type of information block in the type combination, so that the terminal accurately receives information blocks belonging to each type according to the second indication information.

[0018] Conversely, the terminal can determine the correspondence between the identifier set and the type combination set, wherein at least one identifier in the identifier set corresponds one-to-one with at least one type combination in the type combination set, the at least one identifier includes the first identifier, and the at least one type combination includes the first type combination; the terminal determines the first type combination based on the first identifier and the correspondence. In some embodiments, the correspondence may be predefined or may be provided to the terminal by the network device.

[0019] For example, in one possible implementation, the method further includes: the terminal receiving third indication information from a network device, the third indication information including multiple type identifiers, each type identifier corresponding to a type of information block. In this scheme, since each type of information block has a corresponding type identifier, regardless of which types of information blocks are combined, the terminal can accurately receive each type of information block based on the third indication information. This eliminates the need to predefine type combinations, reduces restrictions on type combinations, and allows for more flexible type combinations.

[0020] In one possible implementation, the method further includes: the terminal receiving configuration parameters from a network device, which are used to configure a first radio network tempory identity (RNTI). The first RNTI is determined based on a first part of the RNTI and a second part of the RNTI, where the first part of the RNTI belongs to the RNTI corresponding to a first type of information block, and the second part of the RNTI belongs to the RNTI corresponding to a second type of information block. In this scheme, the first RNTI that the network device can configure for the REDCAP UE is determined based on the RNTIs corresponding to each type of information block, thus avoiding REDCAP UEs and legacy UEs from mistakenly detecting a DCI that does not belong to them.

[0021] In one possible implementation, the method further includes: the terminal receiving fourth indication information from the network device, the fourth indication information being used to indicate the effective time of the first RNTI. In this scheme, the network device can indicate the effective time of the configured RNTI for the legacy UE and the REDCAP UE, for example, instructing the legacy UE and the REDCAP UE to use different RNTIs at different times, thus avoiding collisions between the legacy UE and the REDCAP UE.

[0022] Secondly, a method for transmitting control information is provided. This method can be executed by a second communication device, which can be a communication equipment or a communication device capable of supporting the functions required for the method to be implemented, such as a chip or chip system. The following description uses a network device as an example of the communication equipment. The method includes:

[0023] The network device determines a first message and sends the first message to the terminal. The first message includes multiple information blocks, which include information blocks of a first type and information blocks of a second type. The information blocks of the first type and information blocks of the second type include at least one identical feature parameter. The feature parameter is used to indicate the transmission characteristics of each type of information block among the multiple information blocks. The feature parameter includes attribute content, transmission period, and number of bits.

[0024] In one possible implementation, the type includes the functional type of the information block and / or the business type of the information block, wherein,

[0025] The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function;

[0026] The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

[0027] In one possible implementation, the attribute content includes one or more of the following:

[0028] Serving cell information, partial bandwidth information, terminal information, carrier information, terminal supported bandwidth, latency requirements, reliability requirements, coverage area, terminal group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

[0029] In one possible implementation, the method further includes: the network device sending configuration information to the terminal, the configuration information being used to indicate that the first type of information block and the second type of information block include the same feature parameters.

[0030] In one possible implementation, the method further includes: a network device sending first indication information to a terminal, the first indication information including a location identifier, the location identifier being used to indicate the starting position of different types of information blocks in the first message.

[0031] In one possible implementation, the method further includes: a network device sending second indication information to a terminal, the second indication information including a first identifier for indicating a first type combination, wherein the first type combination includes information blocks of a first type and information blocks of a second type.

[0032] In one possible implementation, the method further includes: the network device sending third indication information to the terminal, the third indication information including multiple type identifiers, each type identifier corresponding to a type of information block.

[0033] In one possible implementation, the method further includes: the network device sending configuration parameters to the terminal, the configuration parameters being used to configure a first RNTI for the terminal, the first RNTI being determined based on a first part RNTI and a second part RNTI, the first part RNTI being determined based on the RNTI corresponding to a first type of information block, and the second part RNTI being determined based on the RNTI corresponding to a second type of information block.

[0034] In one possible implementation, the method further includes: the network device sending a fourth indication message to the terminal, the fourth indication message being used to indicate the effective time of the first RNTI.

[0035] For information on the technical effects of the second aspect or various possible implementations of the second aspect, please refer to the description of the technical effects of the first aspect or various possible implementations of the first aspect.

[0036] Thirdly, embodiments of this application provide a communication device, which can be a terminal-side communication device or a communication device capable of supporting the functions required for the terminal-side communication device to implement the method, such as a chip or chip system. The communication device may include a processing module and a transceiver module, wherein the transceiver module is used to receive a first message from a network device, the first message including multiple information blocks, these multiple information blocks including first-type information blocks and second-type information blocks, the first-type information blocks and the second-type information blocks including at least one identical feature parameter, the feature parameter being used to indicate the transmission characteristics of each type of information block among the multiple information blocks, the feature parameter including attribute content, transmission period, and number of bits; the processing module is used to determine the first-type information blocks and the second-type information blocks.

[0037] In one possible implementation, the type includes the functional type of the information block and / or the business type of the information block, wherein,

[0038] The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function;

[0039] The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

[0040] In one possible implementation, the attribute content includes one or more of the following:

[0041] Serving cell information, partial bandwidth information, communication device information, carrier information, bandwidth supported by communication devices, latency requirements, reliability requirements, coverage, communication device group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

[0042] In one possible implementation, the transceiver module is further configured to: receive configuration information from a network device, the configuration information being used to indicate that the first type of information block and the second type of information block include the same feature parameters.

[0043] In one possible implementation, the transceiver module is further configured to: receive first indication information from a network device, the first indication information including a location identifier, the location identifier being used to indicate the starting position of each type of information block in a first message.

[0044] In one possible implementation, the transceiver module is further configured to: receive second indication information from a network device, the second indication information including a first identifier for indicating a first type combination, wherein the first type combination includes information blocks of a first type and information blocks of a second type.

[0045] In one possible implementation, the transceiver module is further configured to: receive third indication information from a network device, the third indication information including multiple type identifiers, each type identifier corresponding to a type of information block.

[0046] In one possible implementation, the transceiver module is further configured to: receive configuration parameters from a network device, the configuration parameters being used to configure a first RNTI, the first RNTI being determined based on a first part RNTI and a second part RNTI, the first part RNTI being determined based on the RNTI corresponding to a first type of information block, and the second part RNTI being determined based on the RNTI corresponding to a second type of information block.

[0047] In one possible implementation, the transceiver module is further configured to: receive fourth indication information from the network device, the fourth indication information being used to indicate the effective time of the first RNTI.

[0048] Fourthly, embodiments of this application provide a communication device, which may be a network-side communication device or a communication device capable of supporting the functions required for the network-side communication device to implement the method, such as a chip or chip system. The communication device may include a processing module and a transceiver module, wherein the processing module is used to determine a first message, the first message comprising multiple information blocks, including information blocks of a first type and information blocks of a second type, the first type of information blocks and the second type of information blocks including at least one identical feature parameter, the feature parameter being used to indicate the transmission characteristics of each type of information block among the multiple information blocks, the feature parameter including attribute content, transmission period, and number of bits; the transceiver module is used to send the first message to a terminal.

[0049] In one possible implementation, the type includes the functional type of the information block and / or the business type of the information block, wherein,

[0050] The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function;

[0051] The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

[0052] In one possible implementation, the attribute content includes one or more of the following:

[0053] Serving cell information, partial bandwidth information, terminal information, carrier information, terminal supported bandwidth, latency requirements, reliability requirements, coverage area, terminal group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

[0054] In one possible implementation, the transceiver module is further configured to: send configuration information to the terminal, the configuration information being used to indicate that the first type of information block and the second type of information block include the same feature parameters.

[0055] In one possible implementation, the transceiver module is further configured to: send first indication information to the terminal, the first indication information including a location identifier, the location identifier being used to indicate the starting position of different types of information blocks in the first message.

[0056] In one possible implementation, the transceiver module is further configured to: send second indication information to the terminal, the second indication information including a first identifier, the first identifier being used to indicate a first type combination, wherein the first type combination includes information blocks of a first type and information blocks of a second type.

[0057] In one possible implementation, the transceiver module is further configured to: send third indication information to the terminal, the third indication information including multiple type identifiers, each type identifier corresponding to a type of information block.

[0058] In one possible implementation, the transceiver module is further configured to: send configuration parameters to the terminal, the configuration parameters being used to configure a first RNTI for the terminal, the first RNTI being determined based on a first part RNTI and a second part RNTI, the first part RNTI being determined based on the RNTI corresponding to a first type of information block, and the second part RNTI being determined based on the RNTI corresponding to a second type of information block.

[0059] In one possible implementation, the transceiver module is further configured to: send a fourth indication message to the terminal, the fourth indication message being used to indicate the effective time of the first RNTI.

[0060] Regarding the technical effects of the third or fourth aspect or the various possible implementations of the third or fourth aspect, reference can be made to the introduction of the technical effects of the first or second aspect or the various possible implementations of the first or second aspect.

[0061] Fifthly, embodiments of this application provide a communication device, which can be the communication device described in the third or fourth aspect of the above embodiments, or a chip or chip system disposed in the communication device described in the third or fourth aspect. The communication device includes a communication interface and a processor, and optionally, a memory. The memory is used to store computer programs, instructions, or data. The processor is coupled to the memory and the communication interface. When the processor reads the computer program, instructions, or data, it causes the communication device to execute the method performed by the terminal or network device in the above method embodiments.

[0062] In one possible implementation, the communication interface is used to receive a first message from a network device, the first message including multiple information blocks, the multiple information blocks including information blocks of a first type and information blocks of a second type, the first type of information blocks and the second type of information blocks including at least one identical feature parameter, the feature parameter being used to indicate the transmission characteristics of each type of information block among the multiple information blocks, the feature parameter including attribute content, transmission period and number of bits; the processor is used to determine the information blocks of the first type and the information blocks of the second type.

[0063] As an optional implementation, the type includes the functional type of the information block and / or the business type of the information block, wherein,

[0064] The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function;

[0065] The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

[0066] As an optional implementation, the attribute content includes one or more of the following:

[0067] Serving cell information, partial bandwidth information, communication device information, carrier information, bandwidth supported by communication devices, latency requirements, reliability requirements, coverage, communication device group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

[0068] As an optional implementation, the communication interface is also used to: receive configuration information from a network device, the configuration information being used to indicate that the first type of information block and the second type of information block include the same feature parameters.

[0069] As an optional implementation, the communication interface is also used to: receive first indication information from a network device, the first indication information including a location identifier, which is used to indicate the starting position of each type of information block in a first message.

[0070] As an optional implementation, the communication interface is further configured to: receive second indication information from a network device, the second indication information including a first identifier, the first identifier being used to indicate a first type combination, wherein the first type combination includes information blocks of a first type and information blocks of a second type.

[0071] As an optional implementation, the communication interface is also used to: receive third indication information from a network device, the third indication information including multiple type identifiers, each type identifier corresponding to a type of information block.

[0072] As an optional implementation, the communication interface is further configured to: receive configuration parameters from a network device, the configuration parameters being used to configure a first RNTI, the first RNTI being determined based on a first part RNTI and a second part RNTI, the first part RNTI being determined based on the RNTI corresponding to a first type of information block, and the second part RNTI being determined based on the RNTI corresponding to a second type of information block.

[0073] As an optional implementation, the communication interface is also used to: receive fourth indication information from the network device, the fourth indication information being used to indicate the effective time of the first RNTI.

[0074] In another possible implementation, the processor is configured to determine a first message comprising multiple information blocks, including information blocks of a first type and information blocks of a second type, wherein the first type and the second type of information blocks include at least one identical feature parameter, the feature parameter being used to indicate the transmission characteristics of each type of information block among the multiple information blocks, the feature parameter including attribute content, transmission period, and number of bits; the communication interface is configured to send the first message to the terminal.

[0075] As an optional implementation, the type includes the functional type of the information block and / or the business type of the information block, wherein,

[0076] The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function;

[0077] The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

[0078] As an optional implementation, the attribute content may include one or more of the following:

[0079] Serving cell information, partial bandwidth information, terminal information, carrier information, terminal supported bandwidth, latency requirements, reliability requirements, coverage area, terminal group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

[0080] As an optional implementation, the communication interface is also used to: send configuration information to the terminal, the configuration information being used to indicate that the first type of information block and the second type of information block include the same feature parameters.

[0081] As an optional implementation, the communication interface is also used to: send first indication information to the terminal, the first indication information including a location identifier, the location identifier being used to indicate the starting position of different types of information blocks in the first message.

[0082] As an optional implementation, the communication interface is further configured to: send second indication information to the terminal, the second indication information including a first identifier, the first identifier being used to indicate a first type combination, wherein the first type combination includes information blocks of a first type and information blocks of a second type.

[0083] As an optional implementation, the communication interface is also used to: send third indication information to the terminal, the third indication information including multiple type identifiers, one type identifier corresponding to one type of information block.

[0084] As an optional implementation, the communication interface is further configured to: send configuration parameters to the terminal, the configuration parameters being used to configure a first RNTI for the terminal, the first RNTI being determined based on a first part of RNTI and a second part of RNTI, the first part of RNTI being determined based on the RNTI corresponding to a first type of information block, and the second part of RNTI being determined based on the RNTI corresponding to a second type of information block.

[0085] As an optional implementation, the communication interface is also used to: send a fourth indication message to the terminal, the fourth indication message being used to indicate the effective time of the first RNTI.

[0086] It should be understood that the communication interface can be a transceiver in a communication device, such as through an antenna, feeder, and codec in the communication device. Alternatively, if the communication device is a chip located in a network device, the communication interface can be the chip's input / output interface, such as input / output circuits or pins, used for inputting / outputting commands, data, or signals. The transceiver is used for communication between the communication device and other devices. For example, when the communication device is a terminal, the other device is a network device; or, when the communication device is a network device, the other device is a terminal.

[0087] Sixthly, embodiments of this application provide a chip system including a processor, and may further include memory and / or a communication interface for implementing the methods described in the first or second aspect. In one possible implementation, the chip system further includes memory for storing program instructions and / or data. The chip system may be composed of chips or may include chips and other discrete devices.

[0088] In a seventh aspect, embodiments of this application provide a communication system, which includes the communication device described in the third aspect and the communication device described in the fourth aspect; or the communication system includes the communication device described in the third aspect and the communication device in another possible implementation of the fifth aspect; or the communication system includes the communication device described in the fourth aspect and the communication device in one possible implementation of the fifth aspect; or the communication system includes communication devices corresponding to the two possible implementations of the fifth aspect respectively.

[0089] Eighthly, this application provides a computer-readable storage medium storing a computer program that, when executed, implements the methods described in the first or second aspect above.

[0090] Ninthly, a computer program product is provided, the computer program product comprising: computer program code, which, when executed, causes the methods of the first or second aspect described above to be performed.

[0091] The beneficial effects of the fifth to ninth aspects and their implementation methods can be found in the descriptions of the beneficial effects of each aspect or their implementation methods. Attached Figure Description

[0092] Figure 1 This is a schematic diagram of a network architecture applicable to an embodiment of this application;

[0093] Figure 2 Explanatory diagrams for DCI format 2_0 to DCI format 2_6;

[0094] Figure 3 A flowchart illustrating the control information transmission method provided in an embodiment of this application;

[0095] Figure 4 A schematic diagram showing the starting position indication of various types of DCI formats included in the DCI format group provided for embodiments of this application;

[0096] Figure 5 A schematic diagram of a DCI format group for transmission provided in an embodiment of this application;

[0097] Figure 6 Another schematic diagram of the transmission DCI format group provided in the embodiments of this application;

[0098] Figure 7 A schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0099] Figure 8This is another schematic diagram of the communication device provided in the embodiments of this application;

[0100] Figure 9 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0101] Figure 10 This is another schematic diagram of a communication device provided in an embodiment of this application;

[0102] Figure 11 This is a schematic diagram of another structure of a communication device provided in an embodiment of this application;

[0103] Figure 12 This is a schematic diagram of another structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0104] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0105] The technical solutions provided in the embodiments of this application can be applied to fifth-generation (5G) mobile communication systems, such as NR systems, or to long-term evolution (LTE) systems, or to next-generation mobile communication systems or other similar communication systems, without any specific limitations.

[0106] Please refer to Figure 1 This is an exemplary architecture diagram of a communication system to which embodiments of this application are applicable. The communication system may include core network equipment, network equipment, and at least one terminal. Figure 1 Taking an example where at least one terminal consists of two terminals, the terminals connect to the network device wirelessly, and the network device connects to the core network device wirelessly or via a wired connection. The core network device and the network device can be independent physical devices; or the functions of the core network device and the logical functions of the network device can be integrated on the same physical device; or some functions of the core network device and some functions of the network device can be integrated on the same physical device. It should be noted that... Figure 1 This is merely illustrative; the embodiments of this application do not limit the number of core network devices, network devices, and terminals included in the mobile communication system. In some embodiments, the communication system may also include other network devices, such as wireless relay devices, wireless backhaul devices, etc.

[0107] Network devices are access devices that enable terminals to wirelessly access a mobile communication system. These include access network (AN) devices, such as base stations (e.g., access points). Network devices can also refer to devices that communicate with terminals over the air interface, such as other possible terminal devices; for example, in a V2X technology, a network device is a roadside unit (RSU). A base station can be used to convert received air frames to and from Internet Protocol (IP) packets, acting as a router between the terminal and the rest of the access network, which may include an IP network. An RSU can be a fixed infrastructure entity supporting V2X applications and can exchange messages with other entities supporting V2X applications. Network devices can also coordinate the management of air interface attributes. For example, network equipment may include evolved base stations (NodeB, eNB, or e-NodeB) in long-term evolution (LTE) systems or long-term evolution-advanced (LTE-A); or it may include next-generation node B (gNB) in 5G NR systems; or it may include centralized units (CU) and distributed units (DU) in cloud radio access network (Cloud RAN) systems; or it may include access nodes in wireless-fidelity (Wi-Fi) systems, etc. The embodiments of this application do not limit the specific technologies and specific equipment forms used in the wireless network equipment.

[0108] A terminal (also known as a terminal device or terminal apparatus) includes devices that provide voice and / or data connectivity to users. Examples include handheld devices with wireless connectivity or processing devices connected to a wireless modem. The terminal can communicate with the core network via a radio access network (RAN) and exchange voice and / or data with the RAN. The terminal can include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device (D2D) terminal equipment, V2X terminal equipment, machine-to-machine / machine-type communications (M2M / MTC) terminal equipment, Internet of Things (IoT) terminal equipment, subscriber unit, subscriber station, mobile station, remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, or user device, etc. For example, terminals can include mobile phones (or "cellular" phones), computers with mobile terminal devices, portable, pocket-sized, handheld, and computer-embedded mobile devices. As another example, terminals can include virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and so on.For example, terminals may include personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. Alternatively, terminals may include limited devices, such as devices with low power consumption, limited storage capacity, or limited computing power. Examples include information sensing devices such as barcode scanners, radio frequency identification (RFID), sensors, global positioning systems (GPS), and laser scanners.

[0109] By way of example and not limitation, in the embodiments of this application, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices or smart wearable devices, are a general term for devices that apply wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on only one type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets, smart helmets, and smart jewelry for vital sign monitoring. The various terminal devices described above, if located in a vehicle (e.g., placed inside or installed inside a vehicle), can be considered as in-vehicle terminal devices, which are also called on-board units (OBUs).

[0110] Terminals can be categorized into several types based on the types of services they support. For example, the International Telecommunication Union (ITU) defines three main application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), ultra-reliable and low-latency communications (URLLC), and massive machine-type communications (mMTC). Typical eMBB services include ultra-high-definition video, AR, and VR, characterized by large data volumes and high transmission rates. Typical URLLC services include wireless control in industrial manufacturing or production processes, motion control for autonomous vehicles and drones, and tactile interaction applications such as remote repair and remote surgery, characterized by requirements for ultra-high reliability, low latency, relatively small data volumes, and bursty nature. Typical mMTC services include smart grid distribution automation and smart cities, characterized by a large number of connected devices, relatively small data volumes, and low sensitivity to transmission latency; these mMTC terminals need to meet the requirements of low cost and very long standby time. Currently, the standard refers to terminals for mMTC services as REDCAP UE, which means low-complexity or low-capability terminals. These terminals may be less complex than other terminals in terms of bandwidth, power consumption, and number of antennas, such as narrower bandwidth, lower power consumption, and fewer antennas. These terminals can also be called (NRlight, NRL) terminals, which are lightweight versions of terminals.

[0111] In the embodiments of this application, network devices and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. The embodiments of this application do not limit the application scenarios of network devices and terminals.

[0112] Furthermore, the embodiments of this application can be applied to downlink signal transmission, uplink signal transmission, and device-to-device (D2D) signal transmission. For downlink signal transmission, the transmitting device is a network device, and the corresponding receiving device is a terminal. For uplink signal transmission, the transmitting device is a terminal, and the corresponding receiving device is a network device. For D2D signal transmission, the transmitting device is a terminal, and the corresponding receiving device is also a terminal. The embodiments of this application do not limit the direction of signal transmission.

[0113] Network devices can send DCI to terminals via downlink control channels, such as PDCCH. DCI may include uplink scheduling information for scheduling the terminal to transmit data in the uplink data channel, and downlink scheduling information for scheduling the terminal to receive downlink data. It should be noted that downlink control channels are used to carry downlink data information, such as the physical downlink shared channel (PDSCH).

[0114] Before sending a DCI to a terminal, network-side devices can pre-configure the terminal via higher-layer signaling to monitor the PDCCH candidate corresponding to each DCI, which represents the potential time-frequency resource location of the PDCCH. However, the network-side device does not notify the terminal which PDCCH candidate(s) it will send the DCI on. Since a PDCCH candidate may or may not send a terminal's DCI, the terminal needs to monitor the PDCCH candidate corresponding to the DCI to be received in order to determine whether its own DCI exists. The terminal's monitoring of the PDCCH candidate corresponding to the DCI to be received can also be considered as DCI monitoring.

[0115] For example, a terminal can monitor DCI in a common search space (CSS), where DCI may include DCI format 0_1, DCI format 1_0, and DCI format 2_x. It should be understood that different values ​​of x represent different DCI formats. For example, the value of x can be a positive integer in the range [1, 6], that is, DCI format 2_x can be DCI format 2_0, DCI format 2_1, DCI format 2_2, DCI format 2_3, DCI format 2_4, DCI format 2_5, or DCI format 2_6, etc.

[0116] Each DCI format can include multiple information blocks (referred to as "blocks" in the text), and the base station can configure the maximum number of blocks or bits included in each DCI format 2-x. The number of bits occupied by each DCI format 2-x can be configured by the base station or predefined. For example, such as... Figure 2As shown, DCI format 2_0 includes a maximum of 9 bits, while DCI format 2_1 includes a predefined number of 14 bits. For example, the number of bits in DCI format 2_3 is related to the number of component carriers (CCs). The base station can configure the number of bits in DCI format 2_3 according to the number of subcarriers; for example, the number of bits in DCI format 2_3 might be equal to the number of CCs. 2+0 / 2, or the number of bits included in DCI format 2_3 is equal to CC. (2 / 4). For example, the number of bits included in DCI format 2_4 has multiple candidate values, which are located in {[1], 2, 4, [5], 7, 8,

[10] , 14, 16,

[20] ,

[25] , 28, 32,

[35] , 56, 112}. It should be noted that "2, 4, 7, 8, 14, 16, 28, 32, 56, 112" in the above candidate values ​​are candidate values ​​of the number of bits included in DCI format 2_4. And x in [x] is just an example, indicating a possible candidate value of the number of bits included in DCI format 2_4, and does not mean that the candidate value of the number of bits included in DCI format 2_4 must include [x]. For example, the number of bits included in DCI format 2_4 may not be 5, that is, the candidate value does not include [5]. For example, the number of bits included in DCI format 2_6 is equal to 1+0 / 2 / 3 / 4 / 5. It should be noted that the number of bits included in DCI format 2_5 is not listed here, so the corresponding cell content is empty.

[0117] The maximum number of blocks included in each DCI format 2-x can be configured by the base station or predefined. For example, DCI format 2_0 includes a maximum of 16 blocks; DCI format 2_1 includes a maximum of 32 blocks; DCI format 2_2 includes a maximum of 15 bits in the last block and each block corresponds to one UE; DCI format 2_3 includes a maximum of 31 bits in the first block and each block corresponds to one UE; DCI format 2_6 includes a block corresponding to one UE. It should be noted that the maximum number of blocks in DCI format 2_4 is not yet defined and may be the same as that in DCI format 2_1, so it is not listed here, and therefore the corresponding cell is empty. The maximum number of blocks in DCI format 2_5 is not relevant to this application and is not listed here either, so the corresponding cell is empty.

[0118] Of course, the maximum size (payload size) of each DCI can also be limited. For example, the payload size of DCI format 2_0 is less than or equal to 128, the payload size of DCI format 2_1 is less than or equal to 126, and so on.

[0119] Furthermore, the number of bits occupied by each block in each DCI format 2-x can be configured by the base station or predefined. Different blocks can have the same or different number of bits. Because the number of bits in each block is configurable, the range of variation in the number of bits in each block is large, resulting in a large variation in the size of each DCI, meaning that there are multiple DCIs with different sizes. It should be understood that the size of each DCI is the sum of the number of bits in all the blocks included in that DCI.

[0120] In addition to configuring the DCI format, the base station can also configure whether to monitor the DCI format in the CSS. If the base station is configured to monitor the DCI format, it also configures the monitoring period. The monitoring period for the DCI format can be within the candidate period range {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20 / 40 / 80 / 160 / 320 / 640 / 1280 / 2560} slots. For example, the monitoring period for DCI format 2_0 can be {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20} slots, and the monitoring period for DCI format 2_1 can be {1 / 2 / 4} slots, and so on.

[0121] After configuring the DCI format, the base station sends DCIs according to service requirements or related DCI format configuration information. A single DCI sent by the base station can include information from multiple terminals. To determine whether their own DCI exists, the terminal needs to monitor the DCI in the CSS. As mentioned above, since the number of bits in each block is configurable, there are multiple DCI sizes. This requires the terminal to perform blind checks on the PDCCH according to multiple sizes to determine whether its own DCI exists. Obviously, increasing the number of sizes leads to more frequent monitoring.

[0122] To reduce terminal complexity, the number of blind detections of the PDCCH can be reduced, especially for REDCAP UEs, which require reducing the number of blind detections to decrease implementation complexity. In some embodiments, the search space can be reduced, such as the number of DCI sizes in the CSS, for example, by setting the size of each DCI format 2_x to be the same. However, this method increases redundant bits for some DCI formats, which obviously increases the resource overhead of the base station in transmitting DCI.

[0123] Furthermore, reducing the number of DCI sizes in the search space significantly restricts base station scheduling. For example, if a base station transmits M types of DCIs, the terminal, in order to reduce the number of blind detections, will only detect N types of DCIs out of these M types. In other words, if the base station transmits multiple types of DCIs, the terminal only monitors a portion of these multiple types of DCIs, which may result in the loss of some information configured by the base station for the terminal, thus limiting the flexibility of base station scheduling.

[0124] Therefore, embodiments of this application provide a method for transmitting control information. This method transmits multiple DCI formats through a single DCI, that is, transmits information of different DCI formats through a single DCI. This reduces the number of different DCI sizes in the CSS, thereby reducing the number of blind detections by the terminal and saving signaling overhead. Simultaneously, since the terminal can detect all DCIs transmitted by the base station, information loss can be minimized, improving the flexibility of base station scheduling. It should be noted that the number of different DCI sizes refers to the total number of different sizes corresponding to the various DCIs that may exist in the CSS.

[0125] The technical solutions provided in this application can be used in wireless communication systems, such as LTE or NR systems, as well as further evolution systems based on LTE or NR, and future wireless communication systems or other similar communication systems. The technical solutions provided in this application are described below with reference to the accompanying drawings.

[0126] This application provides a method for transmitting control information. In the following description, this method will be applied to... Figure 1 The network architecture shown is an example. Furthermore, this method can be executed by two communication devices, such as a first communication device and a second communication device. The first communication device can be a network device or a communication device (e.g., a chip system) capable of supporting the functions required for the network device to implement the method. The first communication device can also be a terminal or a communication device (e.g., a chip system) capable of supporting the functions required for the terminal to implement the method. Similarly, the second communication device can be a network device or a communication device (e.g., a chip system) capable of supporting the functions required for the network device to implement the method, or it can be a terminal or a communication device (e.g., a chip system) capable of supporting the functions required for the terminal to implement the method. There are no restrictions on the implementation of the first and second communication devices; for example, both the first and second communication devices can be terminals, or the first communication device can be a terminal and the second communication device can support the functions required for the terminal to implement the method, etc. The network device can be, for example, a base station.

[0127] Please refer to Figure 3 This document illustrates the flow of a downlink control information transmission method provided in an embodiment of this application. In the following description, the method is described as being executed by a network device and a terminal; specifically, the first communication device is a terminal, the second communication device is a network device, and the network device is a base station. It should be noted that this embodiment only illustrates execution via a network device and a terminal and is not limited to these two types of communication devices.

[0128] S301. The base station determines a first message, which includes multiple information blocks, including information blocks of a first type and information blocks of a second type. The information blocks of the first type and the information blocks of the second type include at least one identical feature parameter, which is used to indicate the transmission characteristics of each type of information block in the multiple information blocks.

[0129] S302, The base station sends the first message to the terminal, and the terminal receives the first message.

[0130] S303, The terminal determines the first type of information block and the second type of information block.

[0131] This application aims to reduce the number of blind detections performed by the terminal in monitoring DCIs. To this end, this application reduces the number of different DCI sizes. As an example, the base station can transmit blocks from multiple defined DCI formats through a single DCI, for example, transmitting DCI format 2_1 and DCI format 2_4 in one DCI. Merging multiple defined DCI formats together can be considered as a new DCI format. Because multiple DCI formats are merged, the number of DCI formats is reduced. That is, the number of DCI formats the terminal needs to monitor in the same search space is reduced, thereby reducing the number of blind detections performed by the terminal. For ease of description, this document uses DCIformat 2_x as an example, meaning that the defined DCI formats include DCI format 2_0 to DCI format 2_6.

[0132] Before sending DCI to the terminal, the base station can determine which DCI formats to combine for transmission. In this document, the combined DCI format is referred to as a DCI format combination. It should be understood that a DCI format combination may include one DCI format, for example, a DCI format combination including DCI format 2_0. A DCI format combination may also include at least two DCI formats, for example, a DCI format combination including DCI format 2_1 and DCI format 2_4; or, for example, a DCI format combination including DCI format 2_0, DCI format 2_3, and DCI format 2_6, and so on.

[0133] It should be noted that each DCI format transmitted by the base station includes at least one information block. Different DCI formats include information blocks indicating different content; each DCI format can be considered to include the same type of information block, while different DCI formats include information blocks of different types. Therefore, a combination of DCI formats can be considered to include information blocks of different types. For example, a combination of DCI formats may include a first DCI format and a second DCI format, meaning the combination includes information blocks of type one and type two. Specifically, the first DCI format includes information blocks of type one, and the second DCI format includes information blocks of type two. Alternatively, a combination of DCI formats including information blocks of type one and type two can also be described as a combination of a first type of DCI format and a second type of DCI format.

[0134] In the embodiments of this application, the type can be used to indicate the function (role) of the DCI format, or it can be used to indicate the type of transmission service corresponding to the information block transmission included in the DCI format. For ease of description, the type used to indicate the function of the DCI format is called the function type, and the type used to indicate the type of transmission service corresponding to the information block transmission included in the DCI format is called the service type. The function type and service type are described below using DCI format 2_x as an example.

[0135] Different DCI format 2_x may correspond to different function types. It should be noted that the function type corresponding to DCI format 2_x can also be considered as the function information corresponding to the information block included in DCI format 2_x, or the function (function) indicated by DCI format 2-x.

[0136] For example, please see Figure 2 This is an illustrative diagram for DCI format 2_0 to DCI format 2_6. From Figure 2As can be seen, DCI format 2_0 is a frame format function; in other words, DCI format 2_0 has the function of indicating the frame format. For example, DCI format 2_0 includes a slot format indicator (SFI) field, which can be used to indicate the frame structure configuration for the implementation period. That is, starting from a certain indicated or specified time, such as when the terminal receives DCI format 2_0, the PDCCH monitoring continues for a period of time slots, and these time slots are configured according to the indication of the SFI.

[0137] Similarly, DCI format 2_1 is a preemption function, meaning it indicates that downlink resources have been preempted (simply put, downlink preemption indication). For example, DCI format 2_1 includes a downlink preemption indication (PI) field, which can be used to notify, for example, a terminal, of resources (physical resource blocks and symbols) that are occupied in ultra-reliable and low-latency communications (uRLLC) scenarios. In other words, these resources have been preempted by the terminal in the uRLLC scenario. If the terminal detects DCI format 2_1 of a serving cell from the configured serving cell set, the terminal can assume that there is no transmission to be sent to the terminal in the resources indicated by DCI format 2_1. That is, because these resources have been preempted by the terminal in the uRLLC scenario, the resources indicated by DCI format 2_1 from the physical resource block and symbol set within a monitoring period are no longer suitable for receiving, for example, synchronization signal and PBCH block (SSB) information.

[0138] DCI format 2_2 is a data power control function. For example, DCI format 2_2 can control the transmit power of the physical uplink control channel (PUCCH) or the physical uplink shared channel (PUSCH). For instance, DCI format 2_2 includes a transmitting power control (TPC) field, used to adjust the transmit power of the terminal transmitting PUCCH or PUSCH. Upon receiving DCI format 2_2, the terminal can determine the transmit power of the PUCCH or PUSCH based on the TPC field in DCI format 2_2.

[0139] DCI format 2_3 includes reference signal power control functions, such as the ability to control the transmit power of the sounding reference symbol (SRS). For example, DCI format 2_3 includes an SRS TPC field used to adjust the uplink transmit power to the SRS. When a terminal receives DCI format 2_3, it can determine the transmit power to the SRS based on the SRS TPC field within the DCI format 2_3.

[0140] DCI format 2_4 includes cancellation functions, such as indicating that uplink resources have been preempted (which can be simply referred to as uplink preemption indication or cancellation indication). For example, DCI format 2_4 includes an uplink cancellation indication (CI) field, which can be used to notify, for example, a terminal in an eMBB scenario to stop transmitting on the resources indicated by DCI format 2_4. If a terminal detects DCI format 2_4 of a serving cell from the configured set of serving cells, the terminal can assume that the resources indicated by DCI format 2_4 have been preempted by a terminal in a uRLLC scenario, so the terminal in the eMBB scenario will stop transmitting on the resources indicated by DCI format 2_4.

[0141] DCI format 2_5 includes wireless backhaul functionality, such as the ability to indicate wireless backhaul. For example, it can indicate whether a network device has integrated access and backhaul (IAB) functionality.

[0142] DCI format 2_6 includes power-saving features, such as the ability to control transmit power savings. DCI format 2_6 can also be used to indicate whether to enable the discontinuous reception (DRX) timer and whether the terminal should go to sleep. Upon receiving DCI format 2_6, the terminal can determine whether to enable the DRX timer or go to sleep based on the instructions provided.

[0143] Similarly, different DCI format 2_x may correspond to different service types. It should be noted that the service type corresponding to DCI format 2_x refers to the type of transmission service corresponding to the information blocks included in DCI format 2_x. It should be understood that transmission service refers to the service performed by the corresponding terminal. For example, the service type may include one or more of the following services: video surveillance service, wearable device service, sensor service, remote control service, AR service, VR service, and vehicle-to-everything (V2X) service. Correspondingly, a video surveillance service terminal, that is, a terminal transmitting video surveillance services, could be, for example, a camera on a highway. Similarly, a wearable service terminal could be, for example, a smartwatch or smart bracelet. A sensor service terminal could be, for example, a temperature monitoring alarm device or humidity monitoring alarm device installed in a factory. A remote control service terminal could be, for example, a remotely operated robotic arm installed in a factory. An AR service terminal could be, for example, a smart graffiti wall. A VR service terminal could be, for example, a virtual reality game headset or a virtual exhibition hall. A V2X service terminal could be, for example, an in-vehicle intelligent braking system.

[0144] Before transmitting DCI format 2_x, the base station can configure DCI format 2_x via higher-layer signaling. For example, the base station can configure the characteristic parameters of the information blocks included in DCI format 2_x, which indicate the transmission characteristics corresponding to the information blocks. Exemplarily, the characteristic parameters may include the attribute content indicated by the information block, the transmission period, and the number of bits occupied. The attribute content may include serving cell information, partial bandwidth information, terminal information, carrier information, terminal supported bandwidth, latency requirements, reliability requirements, coverage area, terminal group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indication (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset coreset configuration, etc. It should be understood that the transmission period is the transmission period of DCI format 2_x, which can be located in slots such as {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20 / 40 / 80 / 160 / 320 / 640 / 1280 / 2560}. The number of bits is the number of bits occupied by each information block.

[0145] The base station can be configured with one or more feature parameters for the information blocks included in DCI format 2_x. Different DCI formats may have all or some of these feature parameters identical.

[0146] For example, the attribute content of information blocks included in different DCI formats also differs. For instance, the attribute content indicated by a block in DCI format 2_0 includes serving cell information; the attribute content indicated by a block in DCI format 2_1 includes carrier information or band with part (BWP) information; the attribute content indicated by a block in DCI format 2_2 and DCI format 2_3 includes terminal information; the attribute content indicated by a block in DCI format 2_4 is the same as that indicated by a block in DCI format 2_1, i.e., it includes carrier information or BWP information; the attribute content indicated by a block in DCI format 2_6 is the same as that indicated by a block in DCI format 2_2, i.e., it includes terminal information. For a terminal, if it receives DCI format 2_0, it can configure the information according to the format of DCI format 2_0, read the corresponding attribute content (i.e., carrier or BWP information), and then transmit and receive information according to the time slot format.

[0147] For example, the base station can be configured to monitor DCI format 2_0 within the {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20} slots; the monitoring period for DCI format 2_1 can be within the {1 / 2 / 4} slots, and so on. The terminal can determine the monitoring period for the DCI format according to the instructions of the base station. For example, if the base station is configured to monitor DCI format 2_0 within the {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20} slots, then the terminal can monitor DCI format 2_0 once every {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20} slots.

[0148] For example, DCI format 2_0 occupies 9 bits, DCI format 2_1 occupies 14 bits, and the maximum number of bits occupied by DCI format 2_2 and DCI format 2_3 does not exceed the number of bits occupied by DCI format 2_1, and so on. The base station can configure the length of the DCI format according to the maximum number of bits occupied by the DCI format. For the terminal, the terminal can receive the corresponding DCI format according to the starting position and the configured length of the DCI format configured by the base station. For example, the base station can configure DCI format 2_1 to occupy 10 bits, that is, configure the length of DCI format 2_1 to be 10 bits. The terminal can receive DCI format 2_1 with a length of 10 bits according to the configured starting position of DCI format 2_1.

[0149] As described above, a base station can configure one or more feature parameters of the information blocks included in DCI format 2_x. Different DCI formats may have all or some of the same feature parameters. Generally, services of the same type share certain feature parameters, such as the transmission period of service data or the cell serving the service. Furthermore, the function type of a DCI format is usually service-related. For example, DCI format 2_2, DCI format 2_3, and DCI format 2_6 all have power control functions, generally related to uplink transmission services. DCI format 2_1 and DCI format 2_4, for instance, have resource preemption indication functions, generally related to uRLLC services. Therefore, embodiments of this application can determine which types of DCI formats to merge and transmit together based on the feature parameters corresponding to the information blocks included in the DCI format. For example, DCI formats related to the same service can be merged and transmitted together. Specifically, embodiments of this application can merge DCI formats with at least one identical feature parameter together for transmission. For example, a DCI format combination includes a first type of DCI format and a second type of DCI format, wherein the information blocks of the first type of DCI format and the information blocks of the second type of DCI format include at least one of the same feature parameters.

[0150] The following section uses DCI format 2_0 to DCI format 2_6 as examples to list several possible ways to merge DCI format 2_0 to DCI format 2_6 into multiple combinations. It should be noted that the following text only uses the division of DCI format 2_0 to DCI format 2_6 as an example, and the merging methods described below are also applicable to merging other types of DCI formats.

[0151] In the first merging method, the feature parameters include attribute content. The base station can merge DCI format2_0 to DCI format2_6, i.e., the 7 types of DCI formats, into multiple groups according to the attribute content of the block.

[0152] As previously mentioned, the attribute content indicated by the block in DCI format 2_0 includes serving cell information; the attribute content indicated by the block in DCI format 2_1 includes carrier information or BWP information; the attribute content indicated by the block in DCI format 2_2 includes terminal information; the attribute content indicated by the block in DCI format 2_3 includes terminal information; the attribute content indicated by the block in DCI format 2_4 includes carrier information or BWP information; and the attribute content indicated by the block in DCI format 2_6 includes terminal information. In this embodiment, DCI formats with the same attribute content can be merged into a group. It should be understood that the blocks within this group are all configured based on the same attribute content.

[0153] Since the attribute content indicated by the block in DCI format 2_4 includes BWP information or carrier information, and the attribute content indicated by the block in DCI format 2_1 also includes BWP information or carrier information, meaning that both DCI format 2_4 and DCI format 2_1 blocks include BWP information or carrier information, DCI format 2_1 and DCI format 2_4 can be merged into one group. That is, DCI format 2_1 with PI functionality and DCI format 2_4 with CI functionality can be merged into one group.

[0154] Similarly, since the block indication attributes in DCI format 2_2, DCI format 2_3, and DCI format 2_6 all include terminal information, DCI format 2_2, DCI format 2_3, and DCI format 2_6 can be merged into one group. That is, DCI format 2_2 with TPC functionality, DCI format 2_3 with SRS TPC functionality, and DCI format 2_6 with PS functionality can be merged into one group.

[0155] Since the attribute content of the block indicator in DCI format 2_0 is different from that of the block indicator in DCI formats 2_1 to DCI formats 2_6, DCI format 2_0 can be grouped together. Similarly, DCI format 2_5 can be grouped together.

[0156] If the attribute content pertains to the bandwidth supported by the terminal, then attributes related to energy consumption characteristics can be grouped together, for example, DCI format 2_2, DCI format 2_3, and DCI format 2_6 can be combined into one group. Alternatively, attributes related to resource allocation can be grouped together, for example, DCI format 2_1 and DCI format 2_4 can be combined into one group. Or, attributes related to both energy consumption characteristics and resource allocation can be grouped together, for example, DCI format 2_1 and DCI format 2_4 can be combined into one group.

[0157] Similarly, if the attribute content relates to latency requirements, then URLLC-related attributes can be grouped together, for example, DCI format 2_1 and DCI format 2_4 can be combined into one group; if the attribute content relates to reliability requirements, then URLLC-related attributes can be grouped together, for example, DCI format 2_1 and DCI format 2_4 can be combined into one group; if the attribute content relates to coverage, then resource allocation-related attributes can be grouped together, for example, DCI format 2_1 and DCI format 2_4 can be combined into one group; if the attribute content relates to terminal group characteristics, then power consumption-related attributes can be grouped together, for example, DCI format 2_2, DCI format 2_3 and DCI format 2_6 can be combined into one group; if the attribute content relates to antenna configuration information, then resource allocation-related attributes can be grouped together, for example, DCI format 2_1 and DCI format 2_4 can be combined into one group; if the attribute content relates to co-location information, then resource allocation-related attributes can be grouped together, for example, DCI format 2_1 and DCI format 2_4 can be combined into one group. 2_4 can be grouped together; if the attribute content is beamforming information, then the attribute content related to resource allocation can be grouped together, for example, DCI format 2_1 and DCI format 2_4 can be grouped together; if the attribute content is TCI, then the attribute content related to resource allocation can be grouped together, for example, DCI format 2_1 and DCI format 2_4 can be grouped together; if the attribute content is transmission frequency resources, then the attribute content related to resource allocation can be grouped together, for example, DCI format 2_1 and DCI format 2_4 can be grouped together.

[0158] Furthermore, by merging DCI formats based on attribute content, for example, merging DCI formats (DCIformat 2_1 and DCI format 2_4) for the same cell into one for transmission, the base station only needs to send one DCI message to the terminal at the same time within the same serving cell, instead of sending DCI format 2_1 and DCI format 2_4 separately, thus saving signaling overhead.

[0159] In the second merging method, the characteristic parameters include the monitoring period of the DCI format. The base station can merge DCI format 2_0 to DCI format 2_6 into multiple combinations according to the monitoring period of the DCI format.

[0160] For example, the monitoring period of DCI can be located in the {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20 / 40 / 80 / 160 / 320 / 640 / 1280 / 2560} slots. The base station can specify the monitoring period for each DCI format. For example, the base station can be configured to monitor DCI format 2_0, and the configured monitoring period can be located in slots {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20}; the base station can be configured to monitor DCI format 2_1, and the configured monitoring period can be located in slots {1 / 2 / 4}; the base station can be configured to monitor DCI format 2_2, and the configured monitoring period can be located in slots {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20 / 40 / 80 / 160 / 320 / 640 / 1280 / 2560}; the base station can be configured to monitor DCI format 2_3, and the configured monitoring period can be located in slots {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20 / 40 / 80 / 160 / 320 / 640 / 1280 / 2560}; the base station can be configured to monitor DCI format... 2_4, the configured monitoring period can be located in slots {1 / 2 / 4}; for example, if a base station needs to monitor DCI format 2_5, the configured monitoring period can be located in slots {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20 / 40 / 80 / 160 / 320 / 640 / 1280 / 2560}; for example, if a base station needs to monitor DCI format 2_6, the configured monitoring period can be located in slots {1 / 2 / 4 / 5 / 8 / 10 / 16 / 20 / 40}. It should be noted that the above period ranges from DCI format 2_0 to DCI format 2_6 are examples; specific base stations can configure the monitoring period for DCI formats according to service requirements.

[0161] As an example, a base station can group DCI formats with relatively short monitoring periods together, and conversely, group DCI formats with relatively long monitoring periods together. For instance, DCI format 2_0, DCI format 2_1, and DCI format 2_4 can be grouped together; DCI format 2_2, DCI format 2_3, and DCI format 2_6 can be grouped together. It should be understood that the monitoring periods of different groups are not the same.

[0162] Of course, the above merging of DCI format 2_0 to DCI format 2_6 into two groups according to the monitoring cycle is only illustrative. The embodiments of this application do not limit the granularity of the monitoring cycle division. Therefore, in some other embodiments, DCI format 2_0 to DCI format 2_6 can also be merged into at least three groups according to the monitoring cycle.

[0163] It should be understood that grouping DCI formats with relatively short monitoring periods into one group and DCI formats with relatively long monitoring periods into another group reduces the number of different monitoring periods configured within the same monitoring period range. Consequently, monitoring DCI according to the monitoring period can reduce the number of blind detections.

[0164] In the third merging method, the characteristic parameters include the number of bits occupied by the DCI format. The base station can merge DCI format 2_0 to DCI format 2_6 into multiple combinations based on the number of bits occupied by the DCI format.

[0165] from Figure 2 As can be seen from this, DCI format 2_0 occupies 9 bits. DCI format 2_1 occupies 14 bits. The maximum number of bits occupied by DCI format 2_2 and DCI format 2_3 does not exceed the number of bits occupied by DCI format 2_1, that is, the maximum number of bits occupied by DCI format 2_2 and DCI format 2_3 is 14. DCI format 2_4 includes several candidate values ​​for the number of bits, which are located in {[1], 2, 4, [5], 7, 8,

[10] , 14, 16,

[20] ,

[25] , 28, 32,

[35] , 56, 112}. Currently, the number of bits occupied by DCI format 2_5 and DCI format 2_6 has not been specified.

[0166] It should be understood that the embodiments of this application aim to reduce the number of blind detections for DCI monitoring, thereby reducing the number of DCI sizes. For example, multiple types of DCI formats can be merged into one group, resulting in multiple groups. If these multiple groups are configured to occupy the same number of bits, then only one type of DCI needs to be monitored, which obviously reduces the number of blind detections by the terminal. However, since the number of bits occupied by the information blocks in different groups is different, if the number of bits occupied by multiple groups is configured to be the same, then some groups will have more redundant bits and some groups will have fewer redundant bits. In order to ensure as few redundant bits as possible, the embodiments of this application can ensure that the number of bits occupied by the information blocks in the merged multiple groups differs by a small margin.

[0167] As an example, considering that DCI format 1-0 occupies 41 bits, and the sum of the bits occupied by DCI format 2_0 and DCI format 2_1 is 23 bits, if the number of bits occupied by DCI format 2_4 is configured to be 16, then the sum of the bits occupied by DCI format 2_0, DCI format 2_1, and DCI format 2_4, i.e., 9 + 14 + 16 = 39, only needs to be extended by 2 bits to be the same as the number of bits occupied by DCI format 1-0. Therefore, in some embodiments, DCI format 2_0, DCI format 2_1, and DCI format 2_4 can be combined into one group.

[0168] Since the number of bits occupied by DCI format 2_2 and DCI format 2_3 does not exceed the number of bits occupied by DCI format 2_1, DCI format 2_2 can be grouped together. When the base station transmits DCI format 2_2, it can expand the redundant bits, making the transmitted DCI 41 bits. Similarly, DCI format 2_3 can be grouped together. When the base station transmits DCI format 2_3, it can expand the redundant bits, making the transmitted DCI 41 bits. Alternatively, DCI format 2_2 and DCI format 2_3 can be combined into one group. When the base station transmits DCI format 2_2 and DCI format 2_3, it can expand the redundant bits, making the transmitted DCI 41 bits. In this way, the terminal can perform blind detection according to a single length, i.e., 41 bits, reducing the number of blind detections. For example, DCI format 2_1, DCI format 2_2, and DCI format 2_3 exist. DCI format 2_1 occupies 41 bits, DCI format 2_2 occupies M bits, and DCI format 2_3 occupies N bits. If DCI format 2_1, DCI format 2_2, and DCI format 2_3 are transmitted independently, the terminal needs to perform blind detection according to the three sizes of 41, M, and N, requiring at least three detections. However, in this embodiment, when the base station transmits DCI format 2_2 and DCI format 2_3, it expands them to 41 bits. The terminal only needs to perform blind detection according to the size of 41, meaning it only needs to perform a minimum of one detection, significantly reducing the number of blind detections by the terminal device and reducing its power consumption.

[0169] As another example, the base station can configure the maximum number of bits occupied by each DCI format. For example, DCI format 2_0 occupies a maximum of 128 bits, while DCI format 2_1 and DCI format 2_4 each occupy a maximum of 126 bits. The maximum number of bits occupied by DCI format 2_2 and DCI format 2_3 does not exceed the number of bits occupied by DCI format 2_1, and the number of bits occupied by DCI format 2_6 is configured by the base station through higher-layer signaling. If DCI format 2_2, DCI format 2_3, and DCI format 2_6 are combined into one group, the maximum number of bits occupied is 126 bits. In this case, DCI format 2_0 can be used as one group, DCI format 2_1 as another group, and DCI format 2_4 as yet another group, meaning that DCI format 2_0, DCI format 2_1, and DCI format 2_4 are transmitted independently. DCI format 2_2, DCI format 2_3, and DCI format 2_6 can be combined for transmission. When a base station transmits DCI, it can extend the bits occupied by DCI format 2_1 by 2 bits and the bits occupied by DCI format 2_4 by 2 bits, thus configuring DCI format 2_1 and DCI format 2_4 to 128 bits. The base station can also combine DCI format 2_2, DCI format 2_3, and DCI format 2_6 into a group and then extend it by 2 bits. In this way, the length of each DCI format group is 128 bits, and the terminal only needs to monitor the DCI according to the 128-bit length, reducing the number of blind detections by the terminal.

[0170] The above describes how a base station can merge DCI formats based on any one of the characteristic parameters among the information block attributes, transmission period, and number of bits occupied. It should be noted that a base station can also merge DCI formats based on multiple characteristic parameters among the attribute content, transmission period, and number of bits occupied. For example, a base station can merge DCI formats based on the transmission period and attribute content. For instance, DCI format 2_1 and DCI format 2_4 have the same transmission period, such as 4 slots. The attribute content indicated by the block in DCI format 2_0 includes serving cell information; the attribute content indicated by the block in DCI format 2_1 and DCI format 2_4 includes carrier information or BWP information. Therefore, DCI format 2_0, DCI format 2_1, and DCI format 2_4 can be merged into one group, and so on. For example, in a single-carrier scenario, DCI format 2_0, DCI format 2_1, and DCI format 2_4 each correspond to only one serving cell / carrier / BWP. Therefore, from this perspective, DCI format 2_0, DCI format 2_1, and DCI format 2_4 can also be merged into one group.

[0171] After determining which DCI formats to combine for transmission, the base station generates a first message. This first message may include the DCI formats to be transmitted. For example, if the base station determines to combine a first DCI format and a second DCI format for transmission, then the first message may include multiple information blocks, including information blocks of the first type and information blocks of the second type. Specifically, the information blocks of the first type are those included in the first DCI format, and the information blocks of the second type are those included in the second DCI format.

[0172] The base station can configure a first type of information block and a second type of information block among these multiple information blocks. For example, the base station can send configuration information to the terminal, which can be used to indicate that the first type of information block and the second type of information block include the same characteristic parameters. By indicating the characteristic parameters of the two types of information blocks separately with a single configuration message, the base station can save signaling overhead compared to indicating the characteristic parameters of the first type of information block and the second type of information block separately with configuration messages. Since the base station determines to merge the first type of information block and the second type of information block for transmission based on the characteristic parameters of the information blocks, the configuration information indicating that the first type of information block and the second type of information block include the same characteristic parameters implicitly indicates the basis for merging the first type of information block and the second type of information block. The terminal can determine which types of information blocks are included in these multiple information blocks based on this configuration information. For example, if the characteristic parameters indicated by the configuration information are BWP information or carrier information, then the terminal can determine that these multiple information blocks include DCIformat 2_1 and DCIformat 2_4.

[0173] As an example, configuration information can be carried in one or more of radio resource control (RRC) signaling, media access control element (MAC CE) signaling, or DCI signaling. These fields can be fields already defined in RRC, MAC CE, or DCI signaling, or they can be newly defined RRC, MAC CE, or DCI fields; this embodiment does not impose any limitations on this. Of course, configuration information can also be carried in newly defined signaling.

[0174] It should be understood that when a base station sends a first message to a terminal, the terminal needs to identify the first type of information blocks and the second type of information blocks from the multiple information blocks included in the first message. Although the terminal can determine the basis for merging these multiple information blocks based on configuration information, it cannot determine which information blocks are of the first type and which are of the second type. Therefore, the base station also needs to send indication information to the terminal, which can be used to indicate the first type and second type of information blocks among these multiple information blocks. The terminal can identify the first type and second type of information blocks from the multiple information blocks based on this indication information. In other words, the terminal can receive the first type and second type of information blocks from these multiple information blocks based on this indication information.

[0175] In some embodiments, the indication information can be carried on one or more fields of existing signaling, which is beneficial for compatibility with existing signaling. For example, the indication information can be carried on one or more of radio resource control (RRC) signaling, media access control element (MAC CE) signaling, or DCI signaling. The aforementioned one or more fields can be fields already defined in RRC signaling, MAC CE signaling, or DCI signaling, or they can be newly defined RRC fields, MAC CE fields, or DCI fields. This application embodiment does not impose limitations on this. Of course, the indication information can also be carried on newly defined signaling.

[0176] In the embodiments of this application, the instruction information may include, but is not limited to, the following three forms. For ease of distinction, the instruction information may be referred to by different names in different forms. For example, in the first form, the instruction information may be referred to as the first instruction information; in the second form, the instruction information may be referred to as the second instruction information; and in the third form, the instruction information may be referred to as the third instruction information.

[0177] In the first form, the first indication information includes a location identifier, which can be used to indicate the starting position of each type of information block among the multiple information blocks included in the first message. Alternatively, the location information can be used to indicate the starting position of each type of information block among the multiple information blocks. It should be understood that there are multiple DCI format combinations, and the number of bits occupied by different DCI format combinations can be different or the same. For example, to reduce the number of DCI sizes, the base station can configure multiple DCI format combinations to occupy the same number of bits. Then the first message sent by the base station may include redundant bits; in other words, there are redundant bits among the multiple types of information blocks included in the first message. In this case, the location identifier can be considered to be used to indicate the starting position of each type of information block among the multiple information blocks included in the first message. For example, the base station configures the number of bits occupied by the DCI format combination to be the sum of the actual number of bits occupied by each DCI format included in the DCI format combination, that is, the multiple information blocks included in the DCI format combination do not include redundant bits and are consecutive. In this case, the location identifier can be considered to be used to indicate the starting position of each type of information block among the multiple information blocks included in the first message.

[0178] As an example, the first indication information can be carried in RRC signaling. A new first field can be added to the RRC signaling, which can carry a location identifier. When the terminal receives the first indication information, it can determine the starting position of each type of information block included in the first message based on the location identifier in the first indication information. Since the first indication information is carried in RRC signaling, dynamic signaling is not required, thus saving the overhead of dynamic signaling.

[0179] For example, the location identifier can be a bit index (bit position), used to indicate the starting position of each type of information block in the first message. The first indication information can carry multiple location identifiers; for example, the first message may include M types of information blocks, where M is an integer greater than or equal to 1. The first indication information can carry M location identifiers, or it can carry M-1 location identifiers. If the first indication information carries M location identifiers, then one location identifier corresponds to the starting position of one type of information block in the first message. If the first indication information carries M-1 location identifiers, then two adjacent types of information blocks can correspond to one location identifier; by default, the first bit position in the first message is the location bit position of the first type of information block.

[0180] For example, please see Figure 4 This is a schematic diagram of the multiple information blocks included in the first message. Taking M=2 as an example, the first message includes information blocks of the first type combination and information blocks of the second type combination. The information blocks of the first type combination include information blocks of the first type, which are the information blocks included in DCI format 2_0. The information blocks of the second type combination include information blocks of the second type and information blocks of the third type. The information blocks of the second type are the information blocks included in DCI format 2_2, and the information blocks of the third type are the information blocks included in DCI format 2_6. Because DCI format 2_0 has SFI functionality, therefore... Figure 4 SFI can also be used to represent information blocks of the first type combination. Similarly, "TPC+PS" can be used to represent information blocks of the second type combination.

[0181] The base station can configure DCI format 2_0, DCI format 2_2, and DCI format 2_6 separately via higher-layer signaling. For example, the base station can configure the number of bits occupied by DCI format 2_0 to be m1, the number of bits occupied by DCI format 2_2 to be m2, and the number of bits occupied by DCI format 2_6 to be m3. The starting position of DCI format 2_6 can be indicated by the offset between the starting position of DCI format 2_6 and the starting position of DCI format 2_2. The base station can configure the number of bits occupied by the first message to be m, where m is greater than or equal to (m1 + m2 + m3). It should be understood that when m equals (m1 + m2 + m3), then the first message only includes the information blocks included in DCI format 2_0, DCI format 2_2, and DCI format 2_6 respectively. If m is greater than (m1+m2+m3), then the first message may include other information besides the information blocks included in DCI format 2_0, DCI format 2_2, and DCI format 2_6 respectively. The first indication information may include one location identifier (bit index), for example, n1. The reception of information blocks of the second type combination can begin from the default starting position of the information block of the first type combination (DCI format 2_0), with an interval of n1 bits. Since the base station configures the offset between the starting position of DCI format 2_6 and the starting position of DCI format 2_2, as well as the number of bits occupied by DCI format 2_2 and DCI format 2_6 respectively, when the terminal receives the information block of the second type combination, it can determine the starting position of DCI format 2_6 based on this offset and the number of bits occupied by DCI format 2_2, that is, determine which information blocks belong to DCI format 2_2 and which information blocks belong to DCI format 2_6.

[0182] In the second form, the second indication information carries identification information used to indicate type combinations. Here, type combinations refer to combinations formed by the merged DCI formats. In this case, a pre-defined correspondence between the identifier set and the type combination set can be established, as shown in Table 1. At least one identifier in the identifier set corresponds to at least one type combination in the type combination set. For example, the second indication information includes a first identifier; it should be understood that the at least one identifier includes the first identifier, and the at least one type combination includes a first type combination corresponding to the first identifier. The terminal receiving the second indication information can determine the first type combination based on the first identifier and the correspondence shown in Table 1. It should be noted that the correspondence shown in Table 1 can be predefined or sent by the base station to the terminal.

[0183] Table 1

[0184]

[0185] As an example, the second indication information can be carried in DCI signaling. A first field can be added to the DCI signaling, which can carry a first identifier. The first field can occupy multiple bits, and one value of these multiple bits can indicate a type combination. Following Table 1, the first field can occupy 3 bits. If the 3 bits are 011, then the indicated type combinations include DCIformat 2_0 and DCIformat 2_1 and DCIformat 2_4.

[0186] It should be understood that the base station can pre-configure the starting positions of various DCI formats included in each type combination. For example, in a type combination consisting of DCI format 2_1 and DCI format 2_4, the base station can configure the offset of the starting position of DCI format 2_4 relative to the starting position of DCI format 2_1. Therefore, after the terminal determines the type combination based on the second indication information, it can determine the various DCI formats included in that type combination. The second indication information can indicate any one of the pre-configured multiple type combinations, providing greater flexibility.

[0187] The third form involves multiple type identifiers carried in the third indication information, with each type identifier corresponding to a type of information block. In this case, a pre-defined correspondence between the type identifier set and the type set can be established, as shown in Table 2. At least one type identifier in the type identifier set corresponds one-to-one with at least one type in the type set. The correspondence shown in Table 2 can be predefined or sent from the base station to the terminal.

[0188] Table 2

[0189]

[0190] The first message sent by the base station to the terminal includes multiple types of information blocks. Upon receiving the third indication information, the terminal can receive each type of information block in the first message according to the type identifier included in the third indication information.

[0191] As an example, the first message is carried in DCI signaling, and the third indication information is also carried in the DCI. For example, the DCI can add multiple fields to indicate the various types of information blocks included in the first message. It should be understood that these multiple new fields can carry multiple type identifiers, and one new field can be used to carry one type identifier. For example, please refer to Table 3, which is a form of the first message. In Table 3, the type identifier is indicated by "Header".

[0192] Table 3

[0193]

[0194] As another example, the first message may include a new field (the new field) indicating the various types of information blocks it contains. It should be understood that this new field can carry multiple type identifiers. For example, please refer to Table 4, which shows one form of the first message. In Table 4, type identifiers are indicated by "Header".

[0195] Table 4

[0196]

[0197] In the above scheme, the base station can send a combination of DCI formats as a new DCI format to the terminal via the first message, that is, send the information blocks included in multiple DCI formats to the terminal. However, before sending the first message, the base station can configure the DCI formats included in each DCI format combination individually through higher-layer signaling. For example, if the DCI format combination includes DCI format 2_0, DCI format 2_1, and DCI format 2_4, the monitoring period, control resources, and aggregation level of DCI format 2_0, DCI format 2_1, and DCI format 2_4 can be configured individually. The specific configuration method can follow the existing protocol, which will not be elaborated here.

[0198] The embodiments of this application can dynamically configure combinations of multiple DCI formats, which is more flexible than the method of pre-configuring multiple types of combinations.

[0199] It should be understood that before sending a DCI format or a combination of DCI formats, the base station can determine the indication information to be sent to the terminal, such as the content of the DCI format, based on the indication content of the DCI format to be sent. This application embodiment does not limit the indication method for the specific indication content of the DCI format. The indication method for the specific indication content of the DCI format included in the DCI format combination in this application embodiment also follows the current method, or the method provided in this application embodiment can be used.

[0200] As mentioned earlier, different types of information blocks may correspond to different service types, and multiple DCI formats related to the same service can be merged together. For example, according to uplink transmission services, downlink transmission services, or both uplink and downlink transmission services, there are at least two types of information blocks (taking information blocks including the first type and the second type as an example). Assume that the first type of information block corresponds to uplink transmission as the main service, such as time and frequency monitoring services, industrial sensing services, etc.; the second type of information block corresponds to services with a more balanced uplink and downlink transmission, such as wearable device services.

[0201] Before sending information blocks of different types, the base station can determine the indication method of the indication information according to the type of information block. For example, for a first type of information block, the base station can determine the content included in the indication information (DCI) according to a first method. For a second type of information block, the base station can determine the content included in the DCI according to a second method. Correspondingly, for a first type of information block, the terminal can determine the content included in the DCI according to the first method; and for a second type of information block, the terminal can determine the content included in the DCI according to the second method.

[0202] It should be noted that the first and second methods here are only to distinguish the different indication methods used for different types of information blocks, and do not have any specific referential function. The first or second method can be the method of determining the content included in the DCI transmission using the current DCI transmission format.

[0203] To make it easier to understand, the following example of a base station sending DCI format 2_0 illustrates how the base station determines the content of the DCI to be sent.

[0204] For example, a base station needs to send DCI format 2_0, which can be used to indicate a combination of time slot formats. Currently, to send DCI format 2_0, the base station first semi-statically configures multiple time slot format combinations through higher-layer signaling. For example, the existing standard specifies 256 time slot formats, and then determines which of the multiple combinations to select for the DCI indication to be sent.

[0205] In this embodiment, if the base station sends a first type of information block, the information content of the DCI can be determined using a first method. For example, the first method may predefine that the selectable time slot formats include only a limited number of existing time slots, or may pre-configure a limited number of existing time slots through higher layers. It should be understood that the selected limited number of time slot formats can better match uplink transmission services. Then, the base station selects which time slot format through the DCI indication. Because the first method is used, i.e., a limited number of time slot formats are selected, the number of time slot format combinations can be reduced, thereby saving DCI signaling overhead. Simultaneously, the base station does not need to pre-configure multiple time slot combinations through higher-layer signaling, or only needs to configure a small number of time slot combinations, also saving higher-layer signaling overhead. If the base station sends a second type of information block, the content of the DCI to be sent can be determined using the content currently determined to be included in the DCI. That is, the second method is the method of determining the content currently determined to be included in the DCI.

[0206] It should be understood that for each DCI format combination, the base station can configure the size of that DCI format combination, which is the number of bits occupied by that DCI format combination.

[0207] In some embodiments, different DCI format combinations can have the same size, which reduces the number of DCI sizes that the terminal needs to monitor, reduces the number of blind detections by the terminal, and thus reduces the complexity of the terminal.

[0208] In other embodiments, the sizes of different DCI format combinations can be different. This eliminates the need for the base station to extend the number of bits occupied by the first message when sending the DCI format combination, reducing redundant bits and saving resource overhead. However, since the sizes of different DCI format combinations are different, it may not be possible to reduce the number of DCI sizes that the terminal needs to monitor. In this case, to ensure that the number of DCI sizes monitored by the terminal is minimized, embodiments of this application can further configure DCI format combinations of different sizes at different monitoring times.

[0209] The following example illustrates how a base station configures the transmission parameters of the DCI format to be transmitted, and how a terminal monitors the DCI, using the example of merging the DCI format to be transmitted according to the transmission cycle of information blocks.

[0210] According to the transmission cycle of information blocks, DCI format 2_0, DCI format 2_1, and DCI format 2_4 can be merged into one DCI format group (hereinafter referred to as the first group), and DCI format 2_2, DCI format 2_3, and DCI format 2_6 can be merged into one DCI format group (hereinafter referred to as the second group). The base station can individually configure the transmission parameters of each DCI format included in the first group, and also individually configure the transmission parameters of each DCI format included in the second group. The base station can also configure multiple transmission parameters for the first and second groups, such as the transmission cycle, monitoring timing, control resource set, and maximum number of bits occupied. The multiple transmission parameters configured by the base station for the first and second groups can be the same or different.

[0211] As an example, the base station can be configured to have different maximum bit counts for the first group and the second group, which can reduce redundant bits and save resources. In this case, to ensure that the number of DCI sizes monitored by the terminal is minimized, embodiments of this application can configure different DCI formats at different monitoring times. That is, the base station configures the monitoring time for the first group and the monitoring time for the second group to be different.

[0212] For example, the base station can be configured with a transmission period of 1 slot for the first group and 10 slots for the second group. Then, the timing of the terminal monitoring DCI is as follows: Figure 5 As shown. Since the transmission period of the first group is 1 slot and the transmission period of the second group is 10 slots, it is necessary to monitor the DCI format included in the first group in each slot, and monitor the DCI format included in the second group in slot 10.

[0213] As another example, in order to reduce the number of terminal monitoring DCI sizes, the base station can be configured to have the same maximum number of bits occupied by the first group and the same maximum number of bits occupied by the second group, thus ensuring that there is only one formatsize in the USS.

[0214] For example, the first group can be configured to occupy 41 bits, in which case the first group transmits 41 bits. These 41 bits include 9 bits for DCI format 2_0, 14 bits for DCI format 2_1, 16 bits for DCI format 2_4, and 3 bits for padding. It should be understood that the 3 bits are redundant bits used to ensure that the first group occupies 41 bits. The second group can also occupy 41 bits by limiting the number of terminals transmitted. For example, DCI format 2_2 for transmitting 1 terminal occupies 3 bits, DCI format 2_3 for transmitting 1 terminal occupies 2 bits, and DCI format 2_6 for transmitting 1 terminal occupies 2 bits. The base station can be configured to transmit DCI format 2_2 for 6 terminals, DCI format 2_3 for 6 terminals, and DCI format 2_6 for 5 terminals in the second group, and then pad with one redundant bit, so that the second group occupies 41 bits.

[0215] As another example, the base station can be configured to transmit DCI format 2_0, DCI format 2_1, and DCI format 2_4 as separate groups. The base station can configure the number of bits occupied by DCI format 2_0, DCI format 2_1, and DCI format 2_4 to the maximum possible number of bits, i.e., 126 bits or 128 bits. Then, the base station can combine DCI format 2_2, DCI format 2_3, and DCI format 2_6 into a single DCI format group (which can be called the second group). The base station can configure the number of bits occupied by the second group to be 126 bits or 128 bits. It should be understood that the maximum sum of the number of bits occupied by DCI format 2_0, DCI format 2_1, and DCI format 2_4 is 126 bits. If the base station configures the number of bits occupied by the second group to be 128, then only two redundant bits need to be padded. This ensures that the transmitted DCI size is consistent while minimizing redundant bits and saving resources.

[0216] Furthermore, to reduce the complexity of blind detection at the terminal, the base station can configure the same information block to include different content in different groups, so that the first and second groups occupy the same number of bits, thus making the first and second groups the same size. For example... Figure 6 As shown, the base station can be configured with a transmission period of 1 slot for the first group and 10 slots for the second group. Figure 5The difference lies in the fact that the base station can be configured to transmit only a single carrier (CC) configuration of DCI format 2_0, DCI format 2_1, and DCI format 2_4 in the first group transmitted in slots 10 / 20, etc. That is, only a single carrier of DCI format 2_0, DCI format 2_1, and DCI format 2_4 is transmitted, along with DCI format 2_2, DCI format 2_3, and DCI format 2_6. Furthermore, the base station can be configured to transmit multiple CC configurations of DCI format 2_0, DCI format 2_1, and DCI format 2_4 in other slots. Alternatively, the base station can be configured not to transmit the first group in slots 10 / 20, etc., and only transmit DCI format 2_2, DCI format 2_3, and DCI format 2_6. It should be understood that... Figure 6 The first and second groups illustrate that the content sent at different monitoring times is different.

[0217] It should be understood that the embodiments of this application can reduce the number of blind detections by the terminal, thereby reducing the complexity of the terminal. Therefore, the embodiments of this application are applicable to REDCAP UEs. Since the embodiments of this application are also applicable to legacy UEs, for REDCAP UEs and legacy UEs, if the DCI size configured by the base station is the same within the same monitoring time, then the REDCAP UE may mistakenly believe that the DCI sent by the base station to the legacy UE is sent to itself. Similarly, the legacy UE may also mistakenly believe that the DCI sent by the base station to the REDCAP UE is sent to itself.

[0218] To avoid REDCAP UEs and legacy UEs mistakenly detecting DCIs that do not belong to them, in this embodiment, the base station may configure a new Radio Network Temporary Identifier (RNTI) for the REDCAP UE (hereinafter referred to as the first RNTI), while the RNTI configured for the legacy UE follows the provisions of existing standards. For example, the RNTI configured by the base station for the legacy UE is the RNTI corresponding to a DCI format sent by the base station to the legacy UE. The first RNTI configured by the base station for the REDCAP UE is determined based on the RNTIs corresponding to each DCI format included in the DCI format group sent by the base station to the REDCAP UE.

[0219] For example, the DCI format group sent by the base station to the REDCAP UE includes a first type of information block (first DCI format) and a second type of information block (second DCI format). The base station configures the transmission parameters of the DCI format group by sending configuration parameters to the REDCAP UE. These configuration parameters are used to configure the first RNTI. The first RNTI may include a first part RNTI and a second part RNTI, wherein the first part RNTI is determined based on the RNTI corresponding to the first DCI format, and the second part RNTI is determined based on the RNTI corresponding to the second DCI format. For example, the first part RNTI is a portion of the RNTI corresponding to the first DCI format, and the second part RNTI is a portion of the RNTI corresponding to the second DCI format. In other words, the first RNTI is formed by combining the portion RNTI corresponding to the first DCI format and the portion RNTI corresponding to the second DCI format. The order of the portion RNTIs corresponding to each DCI format included in the first RNTI corresponds one-to-one with the order of each DCI format in the DCI format group.

[0220] For example, the DCI format group includes DCI format 2_0 and DCI format 2_2. The base station can configure multiple RNTIs for legacy UEs, such as SFI-RNTI, TPC-RNTI, and PI-RNTI. The base station can configure multiple first RNTIs for REDCAP UEs, such as SFI-TPC-RNTI, SFI-PI-RNTI, and TPC-PI-RNTI.

[0221] It should be understood that the base station can configure multiple first RNTIs for the REDCAP UE, and the REDCAP UE can poll using different first RNTIs for blind DCI detection. If the REDCAP UE detects a DCI of a certain size, it can determine whether the detected DCI belongs to itself through the first RNTI. For example, if the first RNTI is SFI-TPC-RNTI, the REDCAP UE can determine through the first RNTI that the received DCI includes DCI format 2_0 and DCI format 2_2, meaning that the received DCI belongs to itself. Similarly, if a legacy UE detects a DCI of a certain size, it can determine whether the detected DCI belongs to itself through the RNTI.

[0222] Furthermore, during base station scheduling, to avoid collisions between legacy UEs and REDCAP UEs, the legacy UE and REDCAP UE can be instructed to use different RNTIs at different times. That is, the base station can indicate the effective time of the configured RNTI for the legacy UE and REDCAP UE. For example, the base station can send a fourth indication message to the REDCAP UE, which indicates the effective time of the first RNTI. Upon receiving this fourth indication message, the REDCAP UE can determine which RNTI to use based on the effective time indicated by the fourth indication message.

[0223] This application embodiment transmits multiple DCI formats through a single DCI, meaning information from different DCI formats is transmitted via a single DCI. This reduces the number of different DCI sizes, thereby reducing the number of blind detections by the terminal and saving signaling overhead. Simultaneously, since the terminal can monitor all DCIs transmitted by the base station, information loss can be minimized, improving the flexibility of base station scheduling.

[0224] In the embodiments provided above, the methods provided by the embodiments of this application have been described from the perspective of interaction between the terminal and the network device. To implement the functions of the methods provided in the embodiments of this application, the terminal and the network device may include hardware structures and / or software modules, implementing the above functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Whether a particular function is executed in the form of hardware structures, software modules, or a combination of hardware structures and software modules depends on the specific application and design constraints of the technical solution.

[0225] The communication device used to implement the above method in the embodiments of this application is described below with reference to the accompanying drawings. Therefore, the content above can be used in subsequent embodiments, and repeated content will not be described again.

[0226] Figure 7 This is a schematic block diagram of a communication device 700 provided in an embodiment of this application. The communication device 700 can correspondingly implement the functions or steps implemented by a terminal or network device in the various method embodiments described above. The communication device may include a processing module 710 and a transceiver module 720. Optionally, it may also include a storage unit, which can be used to store instructions (code or program) and / or data. The processing module 710 and the transceiver module 720 can be coupled to the storage unit. For example, the processing unit 710 can read instructions (code or program) and / or data from the storage unit to implement the corresponding method. The above-mentioned units can be set independently, or partially or completely integrated.

[0227] In some possible implementations, the communication device 700 can correspondingly implement the behavior and functions of the terminal in the above method embodiments. For example, the communication device 700 can be a terminal, or it can be a component (e.g., a chip or circuit) applied in the terminal. The transceiver module 720 can be used to perform... Figure 3 In the illustrated embodiment, all receive or send operations performed by the terminal, for example... Figure 3 S302 in the illustrated embodiment, and / or other processes used to support the techniques described herein. The processing module 710 is used to perform, for example... Figure 3 In the illustrated embodiment, all operations performed by the terminal other than sending and receiving operations are included, for example... Figure 3 S303 in the illustrated embodiment, and / or other processes used to support the techniques described herein.

[0228] In some embodiments, the transceiver module 720 is configured to receive a first message from a network device, the first message including a plurality of information blocks, the plurality of information blocks including a first type of information block and a second type of information block, the first type of information block and the second type of information block including at least one identical feature parameter, the feature parameter being used to indicate the transmission characteristics of each type of information block among the plurality of information blocks, the feature parameter including attribute content, transmission period and number of bits; the processing module 710 is configured to determine the first type of information block and the second type of information block.

[0229] As an optional implementation, the type includes the functional type of the information block and / or the business type of the information block, wherein,

[0230] The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function;

[0231] The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

[0232] As an optional implementation, the attribute content includes one or more of the following:

[0233] Serving cell information, partial bandwidth information, communication device information, carrier information, bandwidth supported by communication devices, latency requirements, reliability requirements, coverage, communication device group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

[0234] As an optional implementation, the transceiver module 720 is also configured to: receive configuration information from the network device, the configuration information being used to indicate that the first type of information block and the second type of information block include the same characteristic parameters.

[0235] As an optional implementation, the transceiver module 720 is also configured to: receive first indication information from the network device, the first indication information including a location identifier, which is used to indicate the starting position of each type of information block in the first message.

[0236] As an optional implementation, the transceiver module 720 is further configured to: receive second indication information from a network device, the second indication information including a first identifier, the first identifier being used to indicate a first type combination, wherein the first type combination includes information blocks of a first type and information blocks of a second type.

[0237] As an optional implementation, the transceiver module 720 is also used to: receive third indication information from the network device, the third indication information including multiple type identifiers, one type identifier corresponding to a type of information block.

[0238] As an optional implementation, the transceiver module 720 is also configured to: receive configuration parameters from the network device, the configuration parameters being used to configure a first RNTI, the first RNTI being determined based on a first part RNTI and a second part RNTI, the first part RNTI being determined based on the RNTI corresponding to a first type of information block, and the second part RNTI being determined based on the RNTI corresponding to a second type of information block.

[0239] As an optional implementation, the transceiver module 720 is also configured to: receive a fourth indication information from the network device, the fourth indication information being used to indicate the effective time of the first RNTI.

[0240] In some possible implementations, the communication device 700 can correspondingly implement the behavior and functions of the network device in the above method embodiments. For example, the communication device 700 can be a network device or a component (e.g., a chip or circuit) applied in a network device. The transceiver module 720 can be used to perform... Figure 3 In the illustrated embodiment, all receive or transmit operations performed by the base station, for example... Figure 3 S302 in the illustrated embodiment, and / or other processes used to support the techniques described herein. The processing module 710 is used to perform, for example... Figure 3 In the illustrated embodiment, all operations performed by the base station other than transmission and reception operations, such as... Figure 3 S301 in the illustrated embodiment, and / or other processes used to support the techniques described herein.

[0241] In some embodiments, the processing module 710 is used to determine a first message, the first message including a plurality of information blocks, the plurality of information blocks including a first type of information block and a second type of information block, the first type of information block and the second type of information block including at least one identical feature parameter, the feature parameter being used to indicate the transmission characteristics of each type of information block among the plurality of information blocks, the feature parameter including attribute content, transmission period and number of bits; the transceiver module 720 is used to send the first message to the terminal.

[0242] As an optional implementation, the type includes the functional type of the information block and / or the business type of the information block, wherein,

[0243] The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function;

[0244] The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

[0245] As an optional implementation, the attribute content may include one or more of the following:

[0246] Serving cell information, partial bandwidth information, terminal information, carrier information, terminal supported bandwidth, latency requirements, reliability requirements, coverage area, terminal group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

[0247] As an optional implementation, the transceiver module 720 is also used to: send configuration information to the terminal, the configuration information being used to indicate that the first type of information block and the second type of information block include the same feature parameters.

[0248] As an optional implementation, the transceiver module 720 is also used to: send first indication information to the terminal, the first indication information including a location identifier, the location identifier being used to indicate the starting position of different types of information blocks in the first message.

[0249] As an optional implementation, the transceiver module 720 is further configured to: send second indication information to the terminal, the second indication information including a first identifier, the first identifier being used to indicate a first type combination, wherein the first type combination includes information blocks of a first type and information blocks of a second type.

[0250] As an optional implementation, the transceiver module 720 is also used to: send third indication information to the terminal, the third indication information including multiple type identifiers, one type identifier corresponding to one type of information block.

[0251] As an optional implementation, the transceiver module 720 is also used to: send configuration parameters to the terminal, the configuration parameters being used to configure a first RNTI for the terminal, the first RNTI being determined based on a first part of RNTI and a second part of RNTI, the first part of RNTI being determined based on the RNTI corresponding to a first type of information block, and the second part of RNTI being determined based on the RNTI corresponding to a second type of information block.

[0252] As an optional implementation, the transceiver module 720 is also used to: send a fourth indication message to the terminal, the fourth indication message being used to indicate the effective time of the first RNTI.

[0253] It should be understood that the processing module 710 in the embodiments of this application can be implemented by a processor or processor-related circuit components, and the transceiver module 720 can be implemented by a transceiver or transceiver-related circuit components or a communication interface.

[0254] like Figure 8 The diagram shows a communication device 800 provided in an embodiment of this application. The communication device 800 can be a terminal, capable of implementing the terminal functions in the method provided in this application; or, the communication device 800 can be a network device, capable of implementing the base station functions in the method provided in this application. The communication device 800 can also be a device that supports a terminal in implementing the corresponding functions in the method provided in this application, or a device that supports a network device in implementing the corresponding functions in the method provided in this application. The communication device 800 can be a chip system. In this embodiment, the chip system can be composed of chips or can include chips and other discrete components.

[0255] In terms of hardware implementation, the transceiver module 720 can be a transceiver, which is integrated into the communication device 800 to form the communication interface 810.

[0256] The communication device 800 includes at least one processor 820, used to implement or support the communication device 800 in implementing the functions of the network device (base station) or terminal in the methods provided in the embodiments of this application. See the detailed description in the method examples for details, which will not be repeated here.

[0257] The communication device 800 may further include at least one memory 830 for storing program instructions and / or data. The memory 830 is coupled to the processor 820. The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, for information exchange between devices, units, or modules. The processor 820 may operate in conjunction with the memory 830. The processor 820 may execute program instructions and / or data stored in the memory 830 to cause the communication device 800 to implement a corresponding method. At least one of the at least one memory may be included in the processor. It should be noted that the memory 830 is not essential, so in Figure 8 The image is indicated by a dashed line.

[0258] The communication device 800 may further include a communication interface 810 for communicating with other devices via a transmission medium, thereby enabling devices in the communication device 800 to communicate with other devices. For example, when the communication device is a terminal, the other device is a network device; or, when the communication device is a network device, the other device is a terminal. The processor 820 can use the communication interface 810 to send and receive data. Specifically, the communication interface 810 may be a transceiver.

[0259] This application embodiment does not limit the specific connection medium between the communication interface 810, processor 820, and memory 830. This application embodiment... Figure 8 The memory 830, processor 820, and communication interface 810 are connected via a bus 840. Figure 8 The connections between other components are shown in bold and are for illustrative purposes only, not as limiting information. The bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, Figure 8 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0260] In the embodiments of this application, the processor 820 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application may be directly manifested as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

[0261] In this embodiment, the memory 830 can be non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or it can be volatile memory, such as random-access memory (RAM). Memory is any other medium capable of carrying or storing desired program code in the form of instructions or data structures, and accessible by a computer, but is not limited thereto. The memory in this embodiment can also be a circuit or any other device capable of implementing storage functions for storing program instructions and / or data.

[0262] It should be noted that the communication device in the above embodiments can be a terminal, a circuit, a chip applied in a terminal, or other combined devices or components with the aforementioned terminal functions. When the communication device is a terminal, the transceiver module can be a transceiver, which may include an antenna and radio frequency circuits, etc., and the processing module can be a processor, such as a central processing unit (CPU). When the communication device is a component with the aforementioned terminal functions, the transceiver module can be a radio frequency unit, and the processing module can be a processor. When the communication device is a chip system, the transceiver module can be the input / output interface of the chip system, and the processing module can be the processor of the chip system.

[0263] Figure 9 A simplified schematic diagram of a communication device is shown. This is for ease of understanding and illustration. Figure 9 In this example, a base station is used as a communication device. This base station can be applied to applications such as... Figure 1 In the system shown, it is possible to Figure 1 The network devices in the above method embodiments perform the functions of the network devices.

[0264] The communication device 900 may include a transceiver 910, a memory 921, and a processor 922. The transceiver 910 can be used for communication, such as sending or receiving the aforementioned first message, first instruction information, etc. The memory 921 is coupled to the processor 922 and can be used to store the programs and data necessary for the communication device 900 to implement its various functions. The processor 922 is configured to support the communication device 900 in performing the corresponding functions in the above-described methods, which can be implemented by calling the programs stored in the memory 921.

[0265] Specifically, the transceiver 910 can be a wireless transceiver, used to support the communication device 900 in receiving and transmitting signaling and / or data via a wireless air interface. The transceiver 910 can also be referred to as a transceiver unit or communication unit. The transceiver 910 may include one or more radio frequency (RF) units 912 and one or more antennas 911. The RF units, such as remote radio units (RRUs) or active antenna units (AAUs), are specifically used for transmitting RF signals and converting RF signals to baseband signals. The one or more antennas are specifically used for radiating and receiving RF signals. Optionally, the transceiver 910 may only include the above-mentioned RF units. In this case, the communication device 900 may include the transceiver 910, a memory 921, a processor 922, and an antenna 911.

[0266] The memory 921 and the processor 922 can be integrated into one unit or operate independently. For example... Figure 9 As shown, the memory 921 and processor 922 can be integrated into the control unit 920 of the communication device 900. For example, the control unit 920 may include the baseband unit (BBU) of an LTE base station, which may also be called a digital unit (DU). Alternatively, the control unit 920 may include a distributed unit (DU) and / or a centralized unit (CU) in a base station for 5G and future wireless access technologies. The control unit 920 may be composed of one or more antenna panels, wherein multiple antenna panels can collectively support a single access standard wireless access network (such as an LTE network), or multiple antenna panels can individually support different access standard wireless access networks (such as LTE networks, 5G networks, or other networks). The memory 921 and processor 922 can serve one or more antenna panels. That is, the memory 921 and processor 922 can be separately installed on each antenna panel. Alternatively, multiple antenna panels can share the same memory 921 and processor 922. Furthermore, each antenna panel may be provided with necessary circuitry, such as circuitry used to couple the memory 921 and processor 922. The transceiver 910, processor 922 and memory 21 can be connected via a bus structure and / or other connection media.

[0267] based on Figure 9As shown in the structure, when the communication device 900 needs to send data, the processor 922 performs baseband processing on the data to be sent and outputs a baseband signal to the radio frequency (RF) unit. The RF unit then performs RF processing on the baseband signal and transmits the RF signal as electromagnetic waves through the antenna. When data is sent to the communication device 900, the RF unit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 922. The processor 922 converts the baseband signal back into data and processes the data.

[0268] Based on such Figure 9 As shown in the diagram, transceiver 910 can be used to perform the steps executed by transceiver module 720. And / or, processor 922 can be used to call instructions in memory 921 to execute the steps executed by processing module 710.

[0269] Figure 10 A simplified schematic diagram of a terminal is shown. This is for ease of understanding and illustration. Figure 10 In this example, the terminal is a mobile phone. Figure 10 As shown, the terminal includes a processor, memory, radio frequency (RF) circuitry, antenna, and input / output devices. The processor is primarily used for processing communication protocols and data, controlling the on-board unit, executing software programs, and processing software program data. The memory is mainly used to store software programs and data. The RF circuitry is mainly used for converting baseband signals to RF signals and processing RF signals. The antenna is mainly used for transmitting and receiving RF signals in the form of electromagnetic waves. Input / output devices, such as touchscreens, displays, and keyboards, are mainly used to receive user input data and output data to the user. It should be noted that some types of devices may not have input / output devices.

[0270] When data needs to be transmitted, the processor performs baseband processing on the data to be transmitted and outputs a baseband signal to the radio frequency (RF) circuit. The RF circuit then processes the baseband signal and transmits it outward as an electromagnetic wave through the antenna. When data is sent to the device, the RF circuit receives the RF signal through the antenna, converts it into a baseband signal, and outputs the baseband signal to the processor. The processor then converts the baseband signal back into data and processes it. For ease of explanation, Figure 10 Only one memory and processor are shown in the illustration. In actual device products, there may be one or more processors and one or more memories. Memory may also be referred to as storage medium or storage device, etc. Memory may be set up independently of the processor or integrated with the processor; this application does not limit this.

[0271] In this embodiment, the antenna and radio frequency circuit with transceiver functions can be considered as the transceiver unit of the device, and the processor with processing functions can be considered as the processing unit of the device. For example... Figure 10 As shown, the device includes a transceiver unit 1010 and a processing unit 1020. The transceiver unit 1010 can also be called a transceiver, transceiver machine, transceiver device, etc. The processing unit 1020 can also be called a processor, processing board, processing module, processing device, etc. Optionally, the device in the transceiver unit 1010 used to implement the receiving function can be considered as a receiving unit, and the device in the transceiver unit 1010 used to implement the transmitting function can be considered as a transmitting unit; that is, the transceiver unit 1010 includes a receiving unit and a transmitting unit. The transceiver unit 1010 can sometimes also be called a transceiver, transceiver circuit, etc. The receiving unit can sometimes be called a receiver, receiver, or receiving circuit, etc. The transmitting unit can sometimes be called a transmitter, transmitter, or transmitting circuit, etc.

[0272] It should be understood that the transceiver unit 1010 is used to perform the sending and receiving operations on the terminal side in the above method embodiments, and the processing unit 1020 is used to perform other operations on the terminal in the above method embodiments besides the sending and receiving operations.

[0273] For example, in one implementation, the transceiver unit 1010 can be used to perform... Figure 3 S302 in the illustrated embodiment, and / or other processes used to support the techniques described herein.

[0274] When the communication device is a chip-based device or circuit, it may include a transceiver unit and a processing unit. The transceiver unit may be an input / output circuit and / or a communication interface; the processing unit may be an integrated processor, microprocessor, or integrated circuit.

[0275] In this embodiment, it can be referred to Figure 11 The device shown. As an example, this device can perform similar functions. Figure 7 The functions of the processing module 710. Figure 11 The device includes a processor 1110, a data transmission processor 1120, and a data reception processor 1130. The processing module 710 in the above embodiment can be... Figure 11 The processor 1110 in the above embodiment performs the corresponding functions. The processing module 710 in the above embodiment can be... Figure 11 The transmitting data processor 1120 and / or receiving data processor 1130 are included. Although Figure 11 The diagram shows a channel encoder and a channel decoder, but it is understood that these modules are not limiting to this embodiment and are merely illustrative.

[0276] Figure 12This illustrates another form of the present embodiment. The communication device 1200 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. In this embodiment, the communication device can serve as the modulation subsystem. Specifically, the modulation subsystem may include a processor 1203 and an interface 1204. The processor 1203 performs the functions of the aforementioned processing module 710, and the interface 1204 performs the functions of the aforementioned transceiver module 720. As another variation, the modulation subsystem includes a memory 1206, a processor 1203, and a program stored in the memory 1206 and executable on the processor. When the processor 1203 executes the program, it implements the terminal method described in the above method embodiment. It should be noted that the memory 1206 may be non-volatile or volatile, and its location may be inside the modulation subsystem or within the communication device 1200, as long as the memory 1206 can be connected to the processor 1203.

[0277] This application also provides a communication system, specifically, the communication system includes network devices and terminals, or may further include more network devices and multiple terminals. Exemplarily, the communication system includes components for implementing the above... Figure 3 Network devices and terminals with related functions.

[0278] The network devices are respectively used to implement the above. Figure 3 The functions of the relevant network components are described above. The terminal is used to implement these functions. Figure 3 The functions of the relevant terminals are described in detail in the above method embodiments, and will not be repeated here.

[0279] This application also provides a computer-readable storage medium, including instructions that, when executed on a computer, cause the computer to perform... Figure 3 The method executed by the network device; or, when it is running on the computer, causing the computer to perform... Figure 3 The method executed in the terminal.

[0280] This application also provides a computer program product, including instructions that, when run on a computer, cause the computer to perform... Figure 3 The method executed by the network device; or, when it is running on the computer, causing the computer to perform... Figure 3 The method executed in the terminal.

[0281] This application provides a chip system including a processor and potentially a memory, for implementing the functions of the network device or terminal described in the aforementioned methods; or for implementing the functions of the network device and terminal described in the aforementioned methods. The chip system may be composed of chips or may include chips and other discrete components.

[0282] It should be understood that the terms "system" and "network" in the embodiments of this application can be used interchangeably. "At least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c, or a, b, and c, where a, b, and c can be single or multiple.

[0283] Furthermore, unless otherwise stated, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the order, sequence, priority, or importance of multiple objects. For example, "first instruction information" and "second instruction information" are only used to distinguish different instruction information, and do not indicate a difference in priority or importance between the two types of instruction information.

[0284] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0285] Those skilled in the art will recognize that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0286] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0287] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0288] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0289] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0290] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0291] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for transmitting control information, characterized in that, include: A first message is received from a network device. The first message includes multiple information blocks carried on a downlink control information (DCI). The multiple information blocks include information blocks of a first type and information blocks of a second type. The information blocks of the first type are information blocks included in one DCI format, and the information blocks of the second type are information blocks included in another DCI format. The information blocks of the first type and the information blocks of the second type include at least one identical feature parameter. The feature parameter is used to indicate the transmission characteristics of each type of information block in the multiple information blocks. The feature parameter includes attribute content, transmission period, and number of bits. Identify the information blocks of the first type and the information blocks of the second type.

2. The method as described in claim 1, characterized in that, The type includes the functional type of the information block and / or the business type of the information block, wherein... The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function; The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

3. The method as described in claim 1 or 2, characterized in that, The attribute content includes one or more of the following: Serving cell information, partial bandwidth information, terminal information, carrier information, terminal supported bandwidth, latency requirements, reliability requirements, coverage area, terminal group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

4. The method according to any one of claims 1-3, characterized in that, The method further includes: Receive configuration information from the network device, the configuration information being used to indicate that the first type of information block and the second type of information block include the same feature parameters.

5. The method according to any one of claims 1-4, characterized in that, The method further includes: Receive first indication information from the network device, the first indication information including a location identifier, the location identifier being used to indicate the starting position of each type of information block in the first message.

6. The method as described in claim 5, characterized in that, The first type of information block is DCI format 2_0, and the location identifier corresponding to the first type of information block includes the Slot Format Indicator (SFI) field; or, The first type of information block is DCI format 2_2, and the location identifier corresponding to the first type of information block includes a transmit power control (TPC) field; or, The first type of information block is DCI format 2_6, and the location identifier corresponding to the first type of information block includes the group scheduling PS field.

7. The method according to any one of claims 1-4, characterized in that, The method further includes: The system receives a second indication message from the network device. The second indication message includes a first identifier, which indicates a first type combination, wherein the first type combination includes information blocks of the first type and information blocks of the second type.

8. The method according to any one of claims 1-4, characterized in that, The method further includes: Receive third indication information from the network device, the third indication information including multiple type identifiers, each type identifier corresponding to a type of information block.

9. The method according to any one of claims 1-8, characterized in that, Different information block combinations have the same size, and an information block combination includes at least one type of information block.

10. The method according to any one of claims 1-8, characterized in that, Different information block combinations have different sizes, and an information block combination includes at least one type of information block.

11. The method according to any one of claims 1-10, characterized in that, The method further includes: The system receives configuration parameters from the network device, which are used to configure a first Radio Network Temporary Identifier (RNTI). The first RNTI is determined based on a first part of the RNTI and a second part of the RNTI. The first part of the RNTI is determined based on the RNTI corresponding to the first type of information block, and the second part of the RNTI is determined based on the RNTI corresponding to the second type of information block.

12. The method as described in claim 11, characterized in that, The method further includes: Receive a fourth indication message from the network device, the fourth indication message being used to indicate the effective time of the first RNTI.

13. A method for transmitting control information, characterized in that, include: A first message is determined, the first message comprising multiple information blocks carried on a downlink control information (DCI), wherein the multiple information blocks include information blocks of a first type and information blocks of a second type, the first type of information blocks being information blocks included in one DCI format, and the second type of information blocks being information blocks included in another DCI format, the first type of information blocks and the second type of information blocks including at least one identical feature parameter, the feature parameter being used to indicate the transmission characteristics of each type of information block in the multiple information blocks, the feature parameter including attribute content, transmission period and number of bits; Send the first message to the terminal.

14. The method as described in claim 13, characterized in that, The type includes the functional type of the information block and / or the business type of the information block, wherein... The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function; The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

15. The method as described in claim 13 or 14, characterized in that, The attribute content includes one or more of the following: Serving cell information, partial bandwidth information, terminal information, carrier information, terminal supported bandwidth, latency requirements, reliability requirements, coverage area, terminal group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

16. The method according to any one of claims 13-15, characterized in that, The method further includes: Configuration information is sent to the terminal, the configuration information being used to indicate that the first type of information block and the second type of information block include the same feature parameters.

17. The method according to any one of claims 13-16, characterized in that, The method further includes: Send a first indication message to the terminal. The first indication message includes a location identifier, which is used to indicate the starting position of different types of information blocks in the first message.

18. The method as described in claim 17, characterized in that, The first type of information block is DCI format 2_0, and the location identifier corresponding to the first type of information block includes the Slot Format Indicator (SFI) field; or, The first type of information block is DCI format 2_2, and the location identifier corresponding to the first type of information block includes a transmit power control (TPC) field; or, The first type of information block is DCI format 2_6, and the location identifier corresponding to the first type of information block includes the group scheduling PS field.

19. The method according to any one of claims 13-16, characterized in that, The method further includes: Send a second indication message to the terminal. The second indication message includes a first identifier, which is used to indicate a first type combination, wherein the first type combination includes information blocks of the first type and information blocks of the second type.

20. The method according to any one of claims 13-16, characterized in that, The method further includes: A third instruction message is sent to the terminal. The third instruction message includes multiple type identifiers, and each type identifier corresponds to a type of information block.

21. The method according to any one of claims 13-20, characterized in that, Different information block combinations have the same size, and an information block combination includes at least one type of information block.

22. The method according to any one of claims 13-20, characterized in that, Different information block combinations have different sizes, and an information block combination includes at least one type of information block.

23. The method according to any one of claims 13-22, characterized in that, The method further includes: Configuration parameters are sent to the terminal. The configuration parameters are used to configure a first Radio Network Temporary Identifier (RNTI) for the terminal. The first RNTI is determined based on a first part of the RNTI and a second part of the RNTI. The first part of the RNTI is determined based on the RNTI corresponding to the first type of information block, and the second part of the RNTI is determined based on the RNTI corresponding to the second type of information block.

24. The method as described in claim 23, characterized in that, The method further includes: A fourth indication message is sent to the terminal, the fourth indication message being used to indicate the effective time of the first RNTI.

25. A communication device, characterized in that, It includes a transceiver module and a processing module, among which, The transceiver module is used to receive a first message from a network device. The first message includes multiple information blocks carried on a downlink control information (DCI). The multiple information blocks include a first type of information block and a second type of information block. The first type of information block is an information block included in one DCI format, and the second type of information block is an information block included in another DCI format. The first type of information block and the second type of information block include at least one identical feature parameter. The feature parameter is used to indicate the transmission characteristics of each type of information block in the multiple information blocks. The feature parameter includes attribute content, transmission period, and number of bits. The processing module is used to determine the first type of information block and the second type of information block.

26. The communication device as claimed in claim 25, characterized in that, The type includes the functional type of the information block and / or the business type of the information block, wherein... The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function; The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

27. The communication device as claimed in claim 25 or 26, characterized in that, The attribute content includes one or more of the following: Serving cell information, partial bandwidth information, communication device information, carrier information, bandwidth supported by communication devices, latency requirements, reliability requirements, coverage, communication device group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

28. The communication device according to any one of claims 25-27, characterized in that, The transceiver module is also used for: Receive configuration information from the network device, the configuration information being used to indicate that the first type of information block and the second type of information block include the same feature parameters.

29. The communication device according to any one of claims 25-28, characterized in that, The transceiver module is also used for: Receive first indication information from the network device, the first indication information including a location identifier, the location identifier being used to indicate the starting position of each type of information block in the first message.

30. The communication device as claimed in claim 29, characterized in that, The first type of information block is DCI format2_0, and the location identifier corresponding to the first type of information block includes the Slot Format Indicator (SFI) field; or, The first type of information block is DCI format 2_2, and the location identifier corresponding to the first type of information block includes a transmit power control (TPC) field; or, The first type of information block is DCI format 2_6, and the location identifier corresponding to the first type of information block includes the group scheduling PS field.

31. The communication device according to any one of claims 25-28, characterized in that, The transceiver module is also used for: The system receives a second indication message from the network device. The second indication message includes a first identifier, which indicates a first type combination, wherein the first type combination includes information blocks of the first type and information blocks of the second type.

32. The communication device according to any one of claims 25-28, characterized in that, The transceiver module is also used for: Receive third indication information from the network device, the third indication information including multiple type identifiers, each type identifier corresponding to a type of information block.

33. The communication device as described in any one of claims 25-32, characterized in that, Different information block combinations have the same size, and an information block combination includes at least one type of information block.

34. The communication device according to any one of claims 25-32, characterized in that, Different information block combinations have different sizes, and an information block combination includes at least one type of information block.

35. The communication device according to any one of claims 25-34, characterized in that, The transceiver module is also used for: The system receives configuration parameters from the network device, which are used to configure a first Radio Network Temporary Identifier (RNTI). The first RNTI is determined based on a first part of the RNTI and a second part of the RNTI. The first part of the RNTI is determined based on the RNTI corresponding to the first type of information block, and the second part of the RNTI is determined based on the RNTI corresponding to the second type of information block.

36. The communication device as claimed in claim 35, characterized in that, The transceiver module is also used for: Receive a fourth indication message from the network device, the fourth indication message being used to indicate the effective time of the first RNTI.

37. A communication device, characterized in that, It includes a processing module and a transceiver module, among which, The processing module is configured to determine a first message, the first message comprising multiple information blocks carried on a downlink control information (DCI), wherein the multiple information blocks include information blocks of a first type and information blocks of a second type, the first type of information blocks being information blocks included in one DCI format, and the second type of information blocks being information blocks included in another DCI format, the first type of information blocks and the second type of information blocks including at least one identical feature parameter, the feature parameter being used to indicate the transmission characteristics of each type of information block in the multiple information blocks, the feature parameter including attribute content, transmission period and number of bits; The transceiver module is used to send the first message to the terminal.

38. The communication device as claimed in claim 37, characterized in that, The type includes the functional type of the information block and / or the business type of the information block, wherein... The function types include one or more of the following: preemption function, cancellation function, frame format function, power control function, and power saving function; The business types include one or more of the following: video surveillance, wearable device, sensor, remote control, augmented reality (AR), virtual reality (VR), and connected vehicle services.

39. The communication device as claimed in claim 37 or 38, characterized in that, The attribute content includes one or more of the following: Serving cell information, partial bandwidth information, terminal information, carrier information, terminal supported bandwidth, latency requirements, reliability requirements, coverage area, terminal group characteristics, antenna configuration information, co-location information, beamforming information, transmission configuration indicator (TCI), transmission frequency resources, synchronization signal (SS) type, SS period, and resource offset (coreset) configuration.

40. The communication device according to any one of claims 37-39, characterized in that, The transceiver module is also used for: Configuration information is sent to the terminal, the configuration information being used to indicate that the first type of information block and the second type of information block include the same feature parameters.

41. The communication device according to any one of claims 37-40, characterized in that, The transceiver module is also used for: Send a first indication message to the terminal. The first indication message includes a location identifier, which is used to indicate the starting position of different types of information blocks in the first message.

42. The communication device as claimed in claim 41, characterized in that, The first type of information block is DCI format2_0, and the location identifier corresponding to the first type of information block includes the Slot Format Indicator (SFI) field; or, The first type of information block is DCI format 2_2, and the location identifier corresponding to the first type of information block includes a transmit power control (TPC) field; or, The first type of information block is DCI format 2_6, and the location identifier corresponding to the first type of information block includes the group scheduling PS field.

43. The communication device according to any one of claims 37-40, characterized in that, The transceiver module is also used for: Send a second indication message to the terminal. The second indication message includes a first identifier, which is used to indicate a first type combination, wherein the first type combination includes information blocks of the first type and information blocks of the second type.

44. The communication device according to any one of claims 37-40, characterized in that, The transceiver module is also used for: A third instruction message is sent to the terminal. The third instruction message includes multiple type identifiers, and each type identifier corresponds to a type of information block.

45. The communication device according to any one of claims 37-44, characterized in that, Different information block combinations have the same size, and an information block combination includes at least one type of information block.

46. ​​The communication device according to any one of claims 37-44, characterized in that, Different information block combinations have different sizes, and an information block combination includes at least one type of information block.

47. The communication device according to any one of claims 37-46, characterized in that, The transceiver module is also used for: Configuration parameters are sent to the terminal. The configuration parameters are used to configure a first Radio Network Temporary Identifier (RNTI) for the terminal. The first RNTI is determined based on a first part of the RNTI and a second part of the RNTI. The first part of the RNTI is determined based on the RNTI corresponding to the first type of information block, and the second part of the RNTI is determined based on the RNTI corresponding to the second type of information block.

48. The communication device as claimed in claim 47, characterized in that, The transceiver module is also used for: A fourth indication message is sent to the terminal, the fourth indication message being used to indicate the effective time of the first RNTI.

49. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a computer, causes the computer to perform the method as described in any one of claims 1 to 12, or causes the computer to perform the method as described in any one of claims 13 to 24.

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