WO2020135444A1

WO2020135444A1 - Dci detection method and device

Info

Publication number: WO2020135444A1
Application number: PCT/CN2019/128053
Authority: WO
Inventors: 杭海存; 葛士斌; 王潇涵; 纪刘榴
Original assignee: 华为技术有限公司
Priority date: 2018-12-29
Filing date: 2019-12-24
Publication date: 2020-07-02
Also published as: CN111385892B; CN111385892A

Abstract

Disclosed in the embodiments of the present application are a DCI detection method and a device, relating to the technical field of communications. The method is applied in a terminal, and comprises: receiving N pieces of configuration information, each piece of configuration information being used to configure at least one search space set, each search space set comprising at least one search space, N ≥ 2, N being a whole number; on the basis of the N pieces of configuration information, determining to perform DCI blind detection in the search spaces configured by the N pieces of configuration information. The present method may be applied in the field of cooperative transmission.

Description

DCI detection method and device

This application requires the priority of a Chinese patent application filed on December 29, 2018, with the application number 201811647787.5 and the application name "DCI detection method and device", the entire content of which is incorporated by reference in this application.

Technical field

This application relates to the field of communication technology, and in particular, to a method and device for detecting downlink control information (downlink control information, DCI).

Background technique

Coordinated multiple transmission (CoMP) technology refers to multiple transmission points (TRP) that are geographically separated to cooperate in data transmission of a terminal or jointly receive data sent by a terminal. CoMP technology can improve system performance, especially improve spectrum efficiency at the cell edge.

In CoMP technology, there is a non-ideal backhaul (NIB) between multiple TRPs that cooperatively participate in data transmission of a terminal or jointly receive data sent by a terminal (that is, multiple TRPs serving the same terminal), Therefore, real-time information exchange cannot be performed between the multiple TRPs. DCI is delivered in real time. In order to improve the performance of the system, the 5th generation (5G) mobile communication system New Radio (NR) allows the multiple TRPs to deliver multiple DCIs in a time slot . However, in the scenario of "multiple TRPs deliver multiple DCIs in one time slot", no solution has been given to how the terminal performs DCI blind detection.

Summary of the invention

Embodiments of the present application provide a DCI detection method and device, and specifically provide a method and device for performing blind DCI detection in a scenario in which collaborative transmission scenarios, such as multiple TRPs delivering multiple DCIs in a time slot, are performed by a terminal. For example, the scenario of cooperative transmission may be a scenario of a multi-station service terminal or a scenario of collaborative transmission of multiple antenna panels in a single station.

In a first aspect, an embodiment of the present application provides a DCI detection method, which is applied to a terminal. The method includes: receiving N configuration information, each configuration information is used to configure at least one search space set, and each search space set includes at least One search space; N≥2, N is an integer; according to the N configuration information, it is determined that DCI blind inspection is performed in the search space configured by the N configuration information. In other words, the terminal can perform DCI blind detection in the search space configured by all the configuration information when receiving multiple configuration information. In this way, it is helpful to avoid the limitation of the processing capacity of the terminal, specifically referring to the limitation of the maximum number of blind detections of the terminal and/or the number of non-overlapping CCEs of the terminal, resulting in the execution of the search space configured for part of the configuration information DCI blind inspection. The DCI blind inspection cannot be performed on the search space configured by other configuration information, which leads to the problem of high DCI discard rate; thus helping to improve the overall system performance.

In a possible design, the N configuration information may be configuration information sent by a part or all of network devices (such as TRP) cooperatively participating in data transmission of a terminal or jointly receiving data sent by a terminal. Optionally, the DCI corresponding to the search space set configured by the N pieces of configuration information is the DCI transmitted in the same transmission time interval, such as a time slot. It should be noted that, for ease of description, in some embodiments of the present application, the DCI corresponding to the search space set configured by the configuration information is described as the DCI configured by the configuration information, which is described here in a unified manner, and will not be described in detail below.

It should be noted that the “network equipment” involved in the embodiments of the present application may be TRP, base station network equipment, relay station or access point, etc., or may be TRP, base station network equipment, relay station or access point, etc. Antenna panel.

In one possible design, the configuration information is radio resource control (RRC) signaling. Of course, the embodiments of the present application are not limited to this.

In a possible design, the configuration information may be PDCCH configuration (PDCCH-Config), where PDCCH is an abbreviation of physical downlink control channel (physical downlink control channel). As another example, the configuration information may be control resource set group configuration, search space set group configuration, or DCI scrambling code configuration. For another example, the configuration information may be cell configuration or cell group configuration. For the relevant description of these configurations, please refer to the specific implementation section below, which will not be repeated here.

In a possible design, the method may further include: performing DCI blind detection in the search space configured by the N configuration information according to the maximum number of blind detections of the terminal and the maximum number of non-overlapping control channel elements CCE of the terminal.

In a possible design, for the same subcarrier interval, the maximum number of blind detections of the terminal in the scenario of a multi-station service terminal is greater than or equal to the maximum number of blind detections of the terminal in the scenario of a single-station service terminal. Similarly, for the same subcarrier interval, the maximum number of non-overlapping CCEs of a terminal in the scenario of a multi-station service terminal is greater than or equal to the maximum number of non-overlapping CCEs of a terminal in a scenario of a single-station service terminal.

In a possible design, according to the maximum number of blind detections of the terminal and the maximum number of non-overlapping CCEs of the terminal, performing DCI blind detection in the search space configured by the N configuration information includes: according to the maximum number of blind detections of the terminal, The maximum number of non-overlapping CCEs and the value of N of the terminal determine the maximum number of blind checks and the maximum number of non-overlapping CCEs corresponding to each configuration information; for each configuration information, the maximum number of blind detections and the maximum non-overlapping CCEs based on this configuration information For the number of overlapping CCEs, DCI blind inspection is performed in the search space configured by this configuration information. In this way, it is helpful for the terminal to perform DCI blind detection in the search space configured by each configuration information, thereby helping to solve the problem of a high DCI discard rate and thereby improving the overall system performance.

In a possible design, the search space set configured by the N configuration information includes a first search space set and a second search space set, and the first search space set and the second search space set are configured by different configuration information Search space set; according to the terminal’s maximum number of blind inspections and the terminal’s maximum number of non-overlapping CCEs, perform DCI blind inspection in the search space configured by the above N configuration information, including: according to the terminal’s remaining number of blind inspections and the terminal’s remaining Number of non-overlapping CCEs, DCI blind inspection is performed in the search space included in the first search space set; the number of remaining blind inspections of the terminal is determined based on the maximum number of blind inspections of the terminal, and the number of remaining non-overlapping CCEs of the terminal is based on the maximum number of terminals The number of non-overlapping CCEs is determined; after the DCI blind inspection is completed in the search space included in the first search space set, the number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal are updated; according to the number of remaining blind inspections of the updated terminal The number of remaining non-overlapping CCEs with the terminal is subjected to DCI blind detection in the search space included in the second search space set. That is to say, the embodiments of the present application support the technical solution that the two adjacent search space sets targeted by the terminal during the DCI blind detection are search space sets configured by different configuration information, which helps to realize DCI blind detection is performed in the search space configured by each configuration information, thereby helping to solve the problem of high DCI discard rate, thereby improving the overall system performance.

In a possible design, the N configuration information includes first configuration information, and the first configuration information is any one of the N configuration information. The method may further include: if the DCI blind inspection is completed in the search space configured by the first configuration information, stopping DCI blind inspection in the search space configured by the first configuration information.

In a possible design, the DCI blind inspection is completed in the search space configured by the first configuration information, including: all search spaces configured by the first configuration information have undergone DCI blind inspection; or, in the first configuration DCI is detected in the search space configured by the information; or, for the first configuration information, there is no remaining number of blind checks or the number of remaining non-overlapping CCEs.

In a possible design, the above N configuration information includes first configuration information and second configuration information, and the method may further include: after completing DCI blind inspection in the search space configured by the first configuration information, if the first If the search space configured by the configuration information still has the number of remaining blind detections and/or the number of remaining non-overlapping CCEs, update the maximum number of blind detections and/or the number of non-overlapping CCEs corresponding to the second configuration information (specifically, according to the first The number of remaining blind inspections in the search space configured by the configuration information updates the maximum number of blind inspections corresponding to the second configuration information; the maximum number of non-overlapping CCEs in the search space configured by the first configuration information is updated to update the maximum corresponding to the second configuration information Number of non-overlapping CCEs). In this case, for each configuration information, based on the maximum number of blind inspections and the maximum number of non-overlapping CCEs corresponding to this configuration information, performing blind DCI inspection in the search space configured by this configuration information may include: The maximum number of blind detections and/or the maximum number of non-overlapping CCEs corresponding to the second configuration information is to perform DCI blind detection in the search space configured by the second configuration information. In this way, there will be more DCI blind inspection opportunities for the search space configured for the second configuration information, thereby improving the utilization rate of the terminal blind inspection times.

In a possible design, the N configuration information includes target configuration information, and the target configuration information may be any one of the N configuration information, or may be a specific one of the N configuration information. The N configuration information may include one or more target configuration information. Based on this, according to the maximum number of terminal blind checks and the maximum number of non-overlapping CCEs of the terminal, performing DCI blind check in the search space configured by the above N configuration information includes: Number of overlapping CCEs and target aggregation level, DCI blind detection is performed in the search space included in the search space set configured by the target configuration information, the target aggregation level is greater than or equal to a preset threshold; or, according to the terminal’s maximum number of blind detections, the terminal’s Maximum number of non-overlapping CCEs and target DCI format, perform DCI blind inspection in the search space included in the search space set configured by the target configuration information; or, according to the maximum number of terminal blind inspections, the maximum number of non-overlapping CCEs of the terminal, and the target time The domain symbol performs DCI blind detection in the search space included in the search space set configured by the target configuration information. Among them, the target aggregation level may be regarded as a specific one or more aggregation levels. The target DCI format can be regarded as a specific one or more DCI formats. The target time domain symbol may be considered as a specific time domain symbol or symbols. That is to say, the embodiments of the present application support some blind conditions when performing DCI blind inspection in the search space configured by the target configuration information, which helps to reduce the number of blind inspections occupied by the search space configured by the target configuration information , So that the search space configured by other configuration information can obtain more DCI blind inspection opportunities, which in turn helps to improve the utilization rate of the terminal blind inspection times.

In a second aspect, an embodiment of the present application provides a DCI detection device, which is configured to execute the method provided in the first aspect or any possible design of the first aspect. The device may be a terminal or a chip.

In a possible design, the DCI detection apparatus may be divided into functional modules according to the method provided in the first aspect or any one of the possible designs in the first aspect, for example, each functional module may be divided corresponding to each function, It is also possible to integrate two or more functions in one processing module.

In another possible design, the device includes a processor and a transceiver. The transceiver can be used to receive N configuration information, and each configuration information is used to configure at least one search space set, and each search space set includes at least one search space; N ≥ 2, N is an integer. The processor is configured to determine to perform DCI blind detection in the search space configured by the N configuration information according to the N configuration information. In addition, for other steps performed by the processor, reference may be made to the technical solution provided by the possible design of the first aspect, and details are not described herein again.

In a third aspect, an embodiment of the present application provides a DCI detection device. The device includes a memory and a processor. The memory is used to store a computer program. When the computer program is executed by the processor, the first aspect or any of the first aspect A possible design provided method was implemented. For example, the device may be a terminal or a chip.

According to a fourth aspect, an embodiment of the present application provides a processor configured to execute the method provided in the first aspect or any possible design of the first aspect. For example, the processor is used to input N configuration information, each configuration information is used to configure at least one search space set, each search space set includes at least one search space, N ≥ 2, N is an integer; and, according to the N The configuration information determines that blind DCI inspection is performed in the search space configured by the N pieces of configuration information. In addition, for other steps performed by the processor, reference may be made to the technical solution provided by the possible design of the first aspect, and details are not described herein again.

According to a fifth aspect, an embodiment of the present application provides a DCI detection apparatus. The apparatus includes a processor and a communication interface, wherein the processor is used to receive N configuration information through the communication interface, and each configuration information is used to configure at least one Search space set, each search space set includes at least one search space, N≥2, and N is an integer; and, based on the N configuration information, it is determined to perform DCI blind detection in the search space configured by the N configuration information. In addition, for other steps performed by the processor, reference may be made to the technical solution provided by the possible design of the first aspect, and details are not described herein again.

According to a sixth aspect, an embodiment of the present application provides a DCI detection device. The device includes a processing circuit and an input interface, wherein the processing circuit is configured to receive N configuration information through the input interface, and each configuration information is used to configure at least A search space set, each search space set includes at least one search space, N ≥ 2, N is an integer; and, based on the N configuration information, it is determined to perform DCI blind detection in the search space configured by the N configuration information . In addition, for other steps performed by the processing circuit, reference may be made to the technical solution provided by the possible design of the first aspect, and details are not described herein again. Optionally, the device may further include an output interface for outputting information so that the device can communicate with other devices (such as network devices).

In a specific implementation process, the processor may be used to perform, for example, but not limited to, baseband related processing, and the receiver and transmitter may be used to perform, for example, but not limited to, radio frequency transceiver. The above-mentioned devices may be provided on separate chips, or at least partly or completely on the same chip. For example, the receiver and the transmitter may be provided on separate receiver chips and transmitter chips. Can be integrated as a transceiver and then set on the transceiver chip. For another example, the processor may be further divided into an analog baseband processor and a digital baseband processor, where the analog baseband processor and the transceiver may be integrated on the same chip, and the digital baseband processor may be provided on an independent chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip, for example, digital baseband processors can be used with multiple application processors (such as but not limited to graphics processors, multimedia processors, etc.) Integrated on the same chip. Such a chip can be called a system chip (system on chip). Whether each device is independently set on different chips or integrated on one or more chips often depends on the specific needs of the product design. The embodiments of the present application do not limit the specific implementation form of the above device.

An embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is run on a computer, the computer is caused to execute the first aspect or any possible design of the first aspect The method provided. For example, the computer may be a terminal.

An embodiment of the present application further provides a computer program product, which when executed on a computer, causes the method provided by the first aspect or any possible design of the first aspect to be executed.

The present application also provides a communication chip in which instructions are stored, which when executed on the terminal, causes the terminal to perform any method provided in the first aspect or any possible design of the first aspect.

Understandably, any of the DCI detection devices or processors or computer-readable storage media or computer program products or communication chips provided above are used to perform the corresponding methods provided above, therefore, what they can achieve For beneficial effects, refer to the beneficial effects in the corresponding method, which will not be repeated here.

It should be noted that the above-mentioned devices for storing computer instructions or computer programs provided by the embodiments of the present application, such as but not limited to, the above-mentioned memory, computer-readable storage medium, and communication chip, etc., are all non-transitory. .

It can be understood that without obvious conflicts, some or all of the features in any of the multiple technical solutions provided above may be combined to form a new technical solution.

BRIEF DESCRIPTION

1 is a schematic diagram of a communication system to which the technical solution provided by this application is applicable;

2 is a schematic diagram of a hardware structure of a communication device applicable to an embodiment of the present application;

3 is an interactive schematic diagram of a DCI detection method provided by an embodiment of this application;

4 is a schematic structural diagram of a DCI detection device provided by an embodiment of the present application.

detailed description

The technical solution provided by this application can be applied to various communication systems using cooperative transmission technologies (such as CoMP technology or CoMP evolution technology, etc.), for example, multi-point cooperation technology is adopted on the basis of the existing communication system, 5G communication System, future evolution system or multiple communication fusion systems, etc. Can include a variety of application scenarios, such as machine-to-machine (M2M), D2M, macro-micro communication, enhanced mobile Internet (enhance mobile broadband (eMBB), ultra-high reliability and ultra-low latency communication (ultra Reliable & low latency communication (URLLC) and massive IoT communication (massive machine type communication (mMTC)) and other scenarios. These scenarios may include, but are not limited to: communication scenarios between terminals and terminals, communication scenarios between network devices and network devices, communication scenarios between network devices and terminals, and so on. The technical solution provided by the present application can also be applied in scenarios such as terminal-to-terminal communication in a 5G communication system, or communication between network devices and network devices.

As shown in FIG. 1, it is a schematic diagram of a communication system applicable to the technical solution provided by the present application. The communication system may include multiple network devices 10 (only two are shown) and one or more terminals 20 (only shown) 1 terminal 20), wherein at least two network devices 10 provide services to one terminal 20 through cooperation. The same network device 10 may provide services for different terminals 20, and the network devices 10 providing services for different terminals 20 may be the same or different.

The network device 10 may be a device or device that can communicate with the terminal 20. The network device 10 may be a TRP, a base station network device, a relay station, an access point, or the like. Alternatively, the network device 10 may be an antenna panel in a TRP, a base station network device, a relay station, an access point, or the like. The network device 10 may be a global system for mobile (GSM) or code division multiple access (CDMA) base station transceiver station (BTS) in a network or a broadband NB (NodeB) in wideband code division multiple access (WCDMA) can also be eNB or eNodeB (evolutional NodeB) in LTE. The network device 10 may also be a wireless controller in a cloud radio access network (CRAN) scenario. The network device 10 may also be a network device in a 5G communication system or a network device in a future evolution network; it may also be a wearable device or a vehicle-mounted device.

The terminal 20 may be a user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, terminal, wireless communication device, UE agent or UE device, etc. Access terminals can be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital processing (personal digital assistant (PDA), wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in future 5G networks or terminals in future evolved PLMN networks, etc.

Optionally, each network element in FIG. 1 (such as the network device 10 and the terminal 20) may be implemented by the communication device 200 in FIG. FIG. 2 is a schematic diagram of a hardware structure applicable to a communication device according to an embodiment of the present application. The communication device 200 includes at least one processor 201, a communication line 202, a memory 203, and at least one communication interface 204.

The processor 201 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more used to control the execution of the program program of the present application integrated circuit.

The communication line 202 may include a path for transferring information between the above components.

The communication interface 204 is any transceiver-like device (such as an antenna, etc.), and is used to communicate with other devices or communication networks, such as Ethernet, RAN, and wireless local area networks (WLAN).

The memory 203 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), or other types that can store information and instructions The dynamic storage device can also be electrically erasable programmable read-only memory (electrically erasable programmable-read-only memory (EEPROM), read-only compact disc (compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used to carry or store the desired program code in the form of instructions or data structures and can be used by a computer Access to any other media, but not limited to this. The memory may exist independently and be connected to the processor through the communication line 202. The memory can also be integrated with the processor. The memory provided by the embodiments of the present application may generally be non-volatile. The memory 203 is used to store computer execution instructions for executing the solution of the present application, and the processor 201 controls the execution. The processor 201 is used to execute computer-executed instructions stored in the memory 203, thereby implementing the method provided by the following embodiments of the present application.

Optionally, the computer execution instructions in the embodiments of the present application may also be called application program codes, which are not specifically limited in the embodiments of the present application.

In a specific implementation, as an embodiment, the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2.

In a specific implementation, as an embodiment, the communication device 200 may include multiple processors, such as the processor 201 and the processor 207 in FIG. 2. Each of these processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

In a specific implementation, as an embodiment, the communication device 200 may further include an output device 205 and an input device 206. The output device 205 communicates with the processor 201 and can display information in various ways. For example, the output device 205 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. Wait. The input device 206 communicates with the processor 201 and can receive user input in a variety of ways. For example, the input device 206 may be a mouse, a keyboard, a touch screen device, or a sensing device.

The above communication device 200 may be a general device or a dedicated device. In a specific implementation, the communication device 200 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a similar structure as shown in FIG. 2 equipment. The embodiment of the present application does not limit the type of the communication device 200.

The following briefly introduces the terms and related technologies involved in this application to facilitate readers' understanding:

In order to facilitate the understanding of the embodiments of the present application, the terminology and technology involved in the present application are briefly described first.

1), control resource set (control resource, CORESET) and control resource set group (CORESET)

The control resource set may be a resource set used for transmitting DCI, and may also be called a control resource area, or a physical downlink control channel resource set.

Each control resource set may be a set of resource element groups (resource element group, REG). REG is the basic unit of downlink control signaling for physical resource allocation, and is used to define the mapping of downlink control signaling to resource elements (REs). For example, the long term evolution (LTE) protocol stipulates that one REG is composed of 4 REs with continuous non-reference signals (RS) in the frequency domain. It should be understood that REG is only a unit for resource allocation and should not constitute any limitation to this application. This application does not exclude the definition of new resource allocation units in future agreements to achieve the same or similar functions.

For a network device, a control resource set may be understood as a set of resources that may be used for sending a PDCCH; for a terminal, resources corresponding to the search space of the PDCCH of each terminal belong to the control resource set. In other words, the network device may determine the resource used to transmit the PDCCH from the control resource set, and the terminal may determine the search space of the PDCCH according to the control resource set.

The control resource set may include time-frequency resources. For example, the frequency domain may be a bandwidth, or one or more subbands, etc.; the time domain may be one or more symbols; and the control resource set may be time-frequency domain. It is a continuous or discontinuous resource unit, for example, a continuous resource block (resource block (RB) or a discontinuous RB).

It should be understood that the specific contents of the frequency domain resources, time domain resources, and time frequency domain resources listed above are only exemplary descriptions, and should not constitute any limitation to this application. For example, RB is an example of a resource unit, and the size of RB may be a resource defined in the NR protocol or a resource defined in a future protocol, or it may be replaced with another name. For another example, the control resource set may also be one or more slots, radio frames, subframes, mini slots (sub slots or sub slots), or transmission time intervals (transmission time interval, TTI) in the time domain. ), the embodiments of the present application do not specifically limit this.

The control resource set can be configured, for example, through a control resource set information element (ControlResourceSet information) element in high-level parameters. The high-level parameters may include, for example, an identifier (ID) of the control resource set, a frequency domain resource, and the number of symbols included in the duration (duration). This application does not limit the specific parameters used to configure the control resource set.

In addition, the embodiments of the present application propose the concept of controlling resource set groups. A control resource set group may include one or more control resource sets. The control resource set included in the control resource set group can be configured by high-level parameters, for example, can be configured by PDCCH configuration information element (PDCCH-Config information, PDCCH-Config IE), or can be configured by ControlResourceSet information, element, This application does not limit this.

In an example, in the scenario of a multi-station service terminal, for an eMBB service, the network device may configure multiple control resource set groups to the terminal, and one control resource set group includes at least one control resource set. The control resource set included in the same control resource set group is a control resource set configured for DCI of the same network device. Of course, for any control resource set group, the network device can also schedule the URLCC service in the control resource set group, that is, the network device can also send a URLCC service for the URLCC service in the control resource set group. Or multiple DCI.

2), search space set (search space set, SS set) and search space set group (SS Set Set)

The search space set may be a set of search spaces described from the perspective of the physical layer. For higher layers, the search space set may also be referred to as search space (search space (SS)). In the embodiment of the present application, in order to distinguish it from the search space described below, it is referred to as a search space set in this application.

The network device can configure the search space set through high-level parameters, for example, it can be configured through a search space information element (SearchSpace information) element. The high-level parameters may include, for example, the identification of the search space set, the identification of the control resource set, the period and offset of the monitoring time slot, the monitoring symbol in the time slot, and aggregation level (AL). This application does not limit the specific parameters for configuring the search space.

In addition, the embodiments of the present application propose the concept of a search space set. A search space set group may include one or more search space sets. The search space set included in the search space set group can be configured by high-level parameters, for example, can be configured by PDCCH-Config information element, or can be configured by SearchSpace information element, which is not limited in this application.

It should be noted that the SearchSpace information element mentioned here is a high-level parameter. For the physical layer, the high-level parameter can be considered to be used to configure a set of search spaces. In the following, when configuration of high-level parameters is involved, the search space can be understood as a set of search spaces of the physical layer. For brevity, the description of the same or similar cases is omitted below.

In one example, in the scenario of a multi-station service terminal, for eMBB services, the network device may configure multiple search space set groups to the terminal, and one search space set group includes at least one search space set. The search space set included in the same search space set group is a search space set configured for DCI of the same network device. Of course, for any search space set, the network device can also schedule the URLCC service in the search space set; that is, the network device can also be sent in the search space set to schedule the URLCC service. One or more DCI.

3), control channel element (control channel element, CCE)

CCE is a resource unit of the control channel. According to the LTE protocol, one CCE is composed of 9 REGs. It should be understood that CCE is only a resource unit of a control channel, and should not constitute any limitation to this application. This application does not exclude the definition of a new resource unit of a control channel in a future protocol to achieve the same or similar functions.

4), search space

The search space is the search range of the terminal blind detection, or the set of candidate downlink control channels that the terminal needs to monitor. The physical resources of the search space can be jointly determined by the set of control resources and the set of search spaces. For example, the control resource set may indicate the frequency domain position and duration of the search space, and the search space set may indicate the starting position of the search space in the time domain, such as the starting time slot. In the embodiment of the present application, the terminal may jointly determine the time-frequency resource of the blind detection PDCCH based on the control resource set and the search space set configured in the PDCCH configuration.

It should be noted that, for convenience of description, in this embodiment of the present application, the search space jointly determined by the control resource set and the search space set is referred to as the search space in the search space set, which is described here in a unified manner and will not be described in detail below.

The size of a search space is determined by the aggregation level (AL). Generally, if the aggregation level is equal to R, the size of a search space is equal to R*a, where a is the size of a CCE. Among them, R is usually an integer power of 2, such as R = 1, 2, 4, 8, 16, and so on. Of course, a search space can also be smaller than R*a.

That is to say, for a search space set, when the corresponding (or adopted) aggregation levels are different, based on the number of search spaces (or search spaces included in the search space set) determined by the search space set The number is different. Among them, one search space set may correspond to one or more aggregation levels. A search space set corresponds to several aggregation levels and the corresponding value of each aggregation level may be predefined, such as predefined by a protocol, or configured by a network device to the terminal through signaling.

The search space may include a common search space (common search space) and a dedicated search space (specific search space). The common search space refers to a search space where all terminals in the cell monitor. The dedicated search space is a search space of terminal granularity, and the dedicated search spaces of different terminals in the same cell may be different.

5), cell and cell group

A cell may also be called a serving cell. A cell can be understood as a high-level description from the perspective of resource management or mobility management or a service unit. The coverage of each network device can be divided into one or more serving cells, and the serving cell can be regarded as consisting of a certain frequency domain resource. In the embodiment of the present application, the cell may be replaced with a serving cell or a component carrier (CC, or component carrier, component carrier, carrier, etc.). In the embodiments of the present application, "cell", "serving cell" and "CC" are used interchangeably. When the difference is not emphasized, the meaning to be expressed is the same.

In the scenario of a multi-station service terminal, when multiple cells simultaneously serve the same terminal, each cell may correspond to a control resource set group or a search space set group. Similarly, in the scenario of multi-station service terminals, when multiple cell groups provide services for the same terminal, each cell group may correspond to a control resource set group or a search space set group.

6), PDCCH configuration (PDCCH configuration)

The network device may configure PDCCH parameters based on each bandwidth part (BWP) in each cell, for example, control resource set, control resource set group (CORESET) group, search space set, search space set group (SS group) And other parameters that can be used for blind detection of PDCCH. The PDCCH configuration may be configured through PDCCH-ConfigIE in the higher layer parameters, for example. The PDCCH-Config IE may include, for example, a control resource set addition status list (controlResourceSetToAddModList) and a control resource set release list (controlResourceSetToReleaseList). Each list may include the identification of one or more control resource sets. The PDCCH-Config IE may also include a search space addition status list (searchSpacesToAddModList) and a search space release list (searchSpacesToReleaseList), for example. Each list may include the identification of one or more search spaces.

Optionally, each PDCCH configuration may also indicate one or more control resource set groups and/or one or more search space set groups. For example, the control resource set addition status list in the PDCCH-Config IE may include one or more control resource set group identifiers and control resource set identifiers contained in each control resource set group. For another example, the search space increase list in the PDCCH-Config IE may include one or more search space set group identifiers and the search space set identifiers included in each search space set group.

Optionally, each PDCCH configuration may also indicate one or more DCI scrambling codes. For example, the control resource set increase status list in the PDCCH-Config IE may include one or more DCI scrambling code identifiers and search space set identifiers corresponding to the DCI scrambling codes.

One or more search spaces can be determined by PDCCH configuration. In the embodiment of the present application, for the terminal, the PDCCH configuration of the PDCCH can be understood as the PDCCH configuration on which the PDCCH is received, or the terminal blindly detects the PDCCH in the search space determined by the PDCCH configuration; for the network device In other words, the PDCCH configuration of the PDCCH can be understood as the PDCCH configuration on which the PDCCH is transmitted, or in other words, the network device transmits the PDCCH on a part of resources in the search space determined by the PDCCH configuration.

It should be noted that the concepts of "blind detection PDCCH" and "blind detection DCI" or "performing DCI blind detection" described in the embodiments of the present application are the same and can be used interchangeably. The concepts of “transmitting PDCCH” and “transmitting DCI” described in the embodiments of the present application are the same, and they can be used interchangeably. Similarly, the concepts of “receiving PDCCH” and “receiving DCI” are the same, and they can be used interchangeably.

7), the number of non-overlap control channel elements (control channel elements, CCE)

For the same aggregation level, if the search space included in one search space set overlaps with the search space included in another search space set, the two search space sets are considered to overlap, or the two search space sets There are overlapping CCEs.

For convenience of description, the concept of "the number of non-overlapping CCEs in the search space set" is introduced in the embodiments of the present application. As an example, the number of non-overlapping CCEs in a search space set can be understood as the number of effective search spaces included in the search space set. Among them, the effective search space included in a search space set refers to the search space included in the search space set and not belonging to other search space sets in the front. Optionally, the search space set belongs to the same search space set group as the other search space sets. As an example, the order of each search space set in a search space set group is determined according to the order in which the terminal performs DCI blind detection in the search spaces included in each search space set, for example, in a search space set group The order of each search space set is the order in which the terminal performs DCI blind detection in the search space included in each search space set.

8) The number of DCI blind tests required for a search space set

The number of DCI blind detections required for a search space set refers to the sum of the number of search spaces included in the search space set determined according to each aggregation level of the DCI corresponding to the search space set. For example, assuming that the aggregation level of the DCI corresponding to a search space set is 1, 2, 4, and 8, respectively, the number of DCI blind tests required by the search space set is: when the aggregation level is equal to 1, 2, 4, and 8, respectively, The sum of the number of search spaces included in the search space set.

9) Other terms

The term "at least one (species)" in the embodiments of the present application includes one (species) or a plurality (species). "Multiple (species)" means two (species) or more than two (species). For example, at least one of A, B, and C includes the presence of A alone, B alone, A and B, A and C, B and C, and A, B, and C. In this application, unless otherwise stated, "/" means "or", for example, A/B can mean A or B; "and/or" in this article is just a description of the relationship between related objects, indicating that There are three kinds of relationships, such as A and/or B, which can be expressed as: there are three cases where A exists alone, A and B exist simultaneously, and B exists alone. "Multiple" means two or more than two. In order to facilitate a clear description of the technical solutions of the embodiments of the present application, the words “first” and “second” are used in the embodiments of the present application to distinguish the same items or similar items whose functions and functions are basically the same. Those skilled in the art may understand that the words "first" and "second" do not limit the number and the execution order, and the words "first" and "second" do not necessarily mean different.

10) DCI blind inspection process in the existing 5G NR agreement

In the existing protocol, only one PDCCH configuration is configured in one cell, therefore, the terminal performs blind DCI detection only in the search space configured by the PDCCH configuration.

Judging from the order in which the terminal detects DCI, the terminal preferentially performs DCI blind inspection in the public search space, and performs DCI blind inspection in the dedicated search space after completing the DCI blind inspection in the public search space.

The process of the terminal performing blind DCI inspection in the dedicated search space may include the following steps:

Step 1: The terminal obtains the maximum number of blind inspections in the dedicated search space of the terminal according to the maximum number of blind inspections of the terminal minus the number of blind inspections used by the terminal for DCI blind inspection in the public search space. The terminal obtains the maximum number of non-overlapping CCEs in the dedicated search space of the terminal according to the maximum number of non-overlapping CCEs of the terminal minus the number of non-overlapping CCEs used for DCI blind detection in the common search space of the terminal.

Step 2: When multiple search space sets are included in the PDCCH configuration, the terminal according to the identity number (Identity, ID) of multiple dedicated search space sets configured in the PDCCH configuration (that is, the identification of the search space set) in ascending order To sort the multiple dedicated search space sets, it is assumed that there are J dedicated search space sets, and the sorted dedicated search space sets are respectively marked as search space sets 0 to J-1.

Step 3: Based on the number of search spaces included in the search space set i, the terminal judges whether the number of blind checks required for DCI blind inspection in the search space set i exceeds the remaining maximum number of blind checks in the dedicated search space of the terminal, And judge whether the number of non-overlapping CCEs of the search space set i exceeds the remaining maximum number of non-overlapping CCEs of the terminal. If none of them exceed, then perform blind DCI inspection in the search space included in the search space set i, and when i<J-1, assign i to i+1 and return to step 3. When i=J-1, the DCI blind inspection process ends. Otherwise, the search space set i is discarded, that is, DCI blind inspection is not performed in the search space included in the search space set i, and the DCI blind inspection process is ended. Among them, the initial value of i is 0, 0≤i≤J-1.

It can be understood that when the above DCI blind detection process is applied to the CoMP technology, a possible implementation manner is to uniformly sort the set of search spaces configured by multiple configuration information received by the terminal, and follow the steps in step 3 above Blind DCI inspection. In this way, due to the limitation of terminal capabilities, specifically the limitation of the maximum number of blind detections of the terminal and/or the number of non-overlapping CCEs of the terminal, the terminal may perform DCI blind detection on the search space configured by some configuration information. The search space configured by another part of the configuration information cannot perform DCI blind detection, which leads to the problem of high DCI discard rate. This will affect the overall performance of the system.

The technical solutions provided by the embodiments of the present application will be described below with reference to the drawings.

As shown in FIG. 3, it is a schematic diagram of a DCI detection method provided by an embodiment of the present application. The method shown in Figure 3 includes:

S101: The network device sends N configuration information. Each configuration information is used to configure at least one search space set, and each search space set includes at least one search space; N ≥ 2, N is an integer.

S102: The terminal receives the N pieces of configuration information.

The technical solution provided by the embodiments of the present application is applied to a scenario of cooperative transmission. For example, the scenario of collaborative transmission may be a scenario of a multi-station service terminal or a scenario of cooperative transmission of multiple antenna panels in a single station. The "network device" in S101 may be a part or all of a network device that cooperatively participates in data transmission of the terminal or jointly receives data sent by the terminal.

The number of search spaces configured by different configuration information may be the same or different. Generally, the search space sets configured by different configuration information do not overlap. Of course, the embodiments of the present application are not limited thereto. Optionally, the configuration information may be carried through RRC signaling. During specific implementation, the terminal may not perceive which network device sent the N pieces of configuration information.

Optionally, the configuration information may be PDCCH configuration. For the related description about PDCCH configuration, please refer to the above. For example, the above N pieces of configuration information may specifically be N pieces of PDCCH configuration (that is, PDCCH configuration). In this optional implementation, the terminal needs to distinguish IDs configured by the PDCCH, and one ID configured by the PDCCH corresponds to at least one search space set.

Optionally, the configuration information may be control resource set group configuration. The control resource set group configuration is information for configuring the correspondence between the control resource set group and the control resource set. Since there is a correspondence between the control resource set and the search space set, the control resource set group configuration can be used indirectly to configure the correspondence between the control resource set group and the search space set. A control resource set group configuration may be understood as an indication information in the PDCCH configuration, and a PDCCH configuration may carry one or more control resource set configurations. For example, the above N configuration information may be N control resource set group configurations, and the N control resource set group configurations may be carried in one or more PDCCH configurations and sent by the network device to the terminal.

Optionally, the configuration information may be search space set configuration. The search space set group configuration is information for configuring the correspondence between the search space set group and the search space set. A search space set group configuration may be understood as an indication information in the PDCCH configuration, and a PDCCH configuration may carry one or more search space set group configurations. For example, the foregoing N configuration information may be N search space set group configurations, and the N control resource set group configurations are carried in one or more PDCCH configurations and sent by the network device to the terminal.

Optionally, the configuration information may be cell configuration. The cell configuration is information for configuring the correspondence between the cell and the search space set. This optional method may be applicable to a scenario where multiple cells (specifically, network devices in multiple cells) provide services for the same terminal. In this optional implementation, the terminal needs to distinguish the ID of the cell, thereby indirectly distinguishing different PDCCH configurations. Based on this optional implementation, and in combination with a technical solution provided below, when multiple cells simultaneously serve the terminal, the terminal may complete the blind detection corresponding to the cell after completing DCI blind detection for one of the cells The number of times and/or the number of remaining non-overlapping CCEs are allocated to other cells.

Optionally, the configuration information may be cell group configuration. The cell group configuration is used to configure the information of the correspondence between the cell group and the cell. Since the cell configuration can be used to configure the correspondence between the cell and the search space set, the cell group configuration can be used indirectly to configure the correspondence between the cell group and the search space set. This optional method can be applied to a scenario where multiple cell groups (specifically, network devices in multiple cell groups) provide services for the same terminal. In this optional implementation, the terminal needs to distinguish the ID of the cell group, thereby indirectly distinguishing different PDCCH configurations. Based on this optional implementation, combined with a technical solution provided below, when multiple cell groups provide services to the terminal at the same time, the terminal may complete the DCI blind detection for one of the cell groups, and then the remaining cell corresponding to the cell group The number of blind checks and/or the number of remaining non-overlapping CCEs are allocated to other cell groups.

Optionally, the configuration information may be DCI scrambling code configuration. The DCI scrambling code configuration is information for configuring the correspondence between the DCI scrambling code and the search space set. It can be understood that the DCI scrambling code configuration can be understood as the indication information in the PDCCH configuration, and one PDCCH configuration can carry one or more DCI scrambling code configurations.

During specific implementation, the configuration information is specifically which of the above configurations, may be predefined, such as predefined by a protocol; or may be configured by a network device to the terminal through signaling. This embodiment of the present application does not limit this.

S103: The terminal determines to perform DCI blind detection in the search space configured by the N configuration information according to the N configuration information. For example, the terminal performs blind DCI inspection in the search space configured by all the received configuration information. For each configuration information, the terminal may perform DCI blind detection in part or all of the search space configured by the configuration information.

In the DCI detection method provided in the embodiment of the present application, the terminal may perform DCI blind detection in the search space configured by all configuration information when receiving multiple configuration information. In this way, it is helpful to avoid the limitation of the processing capacity of the terminal, specifically referring to the limitation of the maximum number of blind detections of the terminal and/or the number of non-overlapping CCEs of the terminal, resulting in the execution of the search space configured for part of the configuration information DCI blind inspection. The DCI blind inspection cannot be performed on the search space configured by other configuration information, which leads to the problem of high DCI discard rate; thus helping to improve the overall system performance.

Optionally, the method may further include the following step S104:

S104: The terminal performs DCI blind detection in the search space configured by the N configuration information according to the maximum number of blind detections of the terminal and the maximum number of non-overlapping CCEs of the terminal.

In an implementation manner, the maximum number of blind detections and the maximum number of non-overlapping CCEs of the terminal described in the embodiments of the present application may be determined based on the subcarrier interval.

For example, the current 5G NR agreement stipulates that when the subcarrier spacing is 15 kHz (kilohertz), the maximum number of blind detections of the terminal is 44 and the maximum number of non-overlapping CCEs of the terminal is 56. It should be understood that this example is proposed on the basis of a single-station service terminal. Based on this, it is extensible that for the same subcarrier interval, the maximum number of blind detections of the terminal in the scenario of a multi-station service terminal is greater than or equal to the maximum number of blind detections of the terminal in the scenario of a single-station service terminal. Similarly, for the same subcarrier interval, the maximum number of non-overlapping CCEs of a terminal in the scenario of a multi-station service terminal is greater than or equal to the maximum number of non-overlapping CCEs of a terminal in a scenario of a single-station service terminal.

It should be noted that if no description is given, the maximum number of blind detections and the maximum number of non-overlapping CCEs described in this application are described based on one time slot and one cell as an example, and are described here in a unified manner, and will not be described in detail below.

In another implementation manner, the maximum number of blind checks of the terminal described in the embodiments of the present application may refer to the maximum number of blind checks of the dedicated search space for the terminal. Similarly, the maximum number of non-overlapping CCEs of the terminal described in the embodiments of the present application may all refer to the maximum number of non-overlapping CCEs of the dedicated search space for the terminal.

Optionally, the N configuration information includes target configuration information, and the target configuration information may be any one of the N configuration information, or may be a specific one of the N configuration information. The N pieces of configuration information may include one or more target configuration information. Based on this, S104 can be implemented through one of the following schemes:

Scenario 1: According to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target aggregation level, blind DCI detection is performed in the search space included in the search space set configured by the target configuration information.

Optionally, the target aggregation level is greater than or equal to a preset threshold.

It can be understood that in the scenario of multi-station service terminals, the interference-to-noise ratio (signal to interference plus noise ratio) of the terminal at the cell edge is poor compared to the terminal at the center of the cell. In order to ensure the PDCCH For robustness, in scenarios where the SINR is relatively low, that is, the channel quality is relatively low, only DCI with a relatively high aggregation level is usually adopted. For example, the aggregation level can be selected from 8 and 16 or 32. Based on this, for certain configuration information or certain configuration information, only a relatively high aggregation level may be used for blind DCI detection. In this way, the number of blind inspections occupied by the search space configured by this or these configuration information can be reduced, so that the search space configured by other configuration information can obtain more DCI blind inspection opportunities, thereby improving the utilization of the terminal's blind inspection times rate. It should be understood that this is only a specific application scenario of Solution 1, which does not limit the application scenario of Solution 1.

The embodiment of the present application does not limit “how the terminal determines whether to use all available aggregation levels for DCI blind detection for one configuration information, or specific one or more aggregation levels for DCI blind detection”.

For example, network devices can be divided into primary and secondary network devices. The difference between the primary and secondary network devices is that the aggregation level corresponding to the DCI configured by the primary network device for the service it invokes is all available aggregation levels, and the secondary network device is its The aggregation level corresponding to the DCI of the invoked service configuration is a specific aggregation level or aggregation levels, such as a relatively high aggregation level. Based on this, the network device and the terminal can pre-define through a protocol or through signaling configuration to negotiate which configuration information configures the DCI used to schedule the service data of the master network device, and/or which configuration information is used DCI for scheduling service data of auxiliary network equipment. For example, when the configuration information is a PDCCH configuration, all aggregation-level DCIs are blindly detected in the search space configured by the PDCCH configuration with a smaller ID, and only specific information is blindly detected in the search space configured by the PDCCH configuration information with a larger ID. The aggregation level of DCI. In this way, after receiving the configuration information, the terminal may determine whether the aggregation levels required for the configuration information are all available aggregation levels or specific one or more aggregation levels based on the identification information of the configuration information.

Scenario 2: According to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target DCI format, blind DCI detection is performed in the search space included in the set of search spaces configured by the target configuration information.

Based on the same reasons as in the above scheme 1, it can be known that for certain configuration information or certain configuration information, only certain DCI formats can be used. For example, DCI format 1_0 and DCI format 1_1.

Scenario 3: According to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target time domain symbol, blind DCI detection is performed in the search space included in the set of search spaces configured by the target configuration information.

It can be understood that, in the current protocol, when a single station serves a terminal, the same network device may send multiple DCIs on one time slot of a cell. For example, if the network device first schedules the eMBB service data of the terminal, the network device needs to send a DCI for the eMBB service data. At this time, if there are one or more burst packets such as URLLC service data, the network device needs to send one DCI for each burst packet.

DCI for eMBB service data is usually carried on the first N time-domain symbols of a time slot (for example, N=3), and DCI for URLLC service data can be carried on any time-domain symbol of a time slot. As an example, the time domain symbol may be an orthogonal frequency division multiplexing (OFDM) symbol, etc. Therefore, if the network device is divided into primary and secondary network devices, the difference between the primary and secondary network devices is that the primary network device can schedule URLLC service data and eMBB service data, and the secondary network device can schedule eMBB service data but not URLCC service data; Then, for any configuration information, the terminal can determine the DCI configured by the configuration information to be used to schedule the service data of the secondary network device, in a specific time domain symbol of a slot (such as the first three DCI blind detection in the time domain symbol). In this way, it helps to reduce the number of blind inspections occupied by the configuration information, so that the search space configured by other configuration information can obtain more DCI blind inspection opportunities, thereby improving the utilization rate of the blind inspection times of the terminal.

As an example, the network device and the terminal may be pre-defined through a protocol or configured through signaling to negotiate which configuration information the configured DCI is the DCI used to schedule the service data of the main network device and/or which configuration information It is DCI used for scheduling the service data of the auxiliary network equipment. Based on this, after receiving the configuration information, the terminal may determine whether to perform DCI blind detection on all time domain symbols of a time slot or DCI blind detection on specific time domain symbols based on the identification information of the configuration information.

It can be understood that, in the case of no conflict, the above at least two solutions can be used in combination to form a new technical solution, for example, for a certain configuration information, the terminal can according to a specific aggregation level and a specific time The field symbol is blindly checked by DCI.

Optionally, the N configuration information includes first configuration information, and the first configuration information may be any one of the N configuration information. Based on this, if the DCI blind inspection is completed in the search space configured by the first configuration information, the DCI blind inspection is stopped in the search space configured by the first configuration information. Wherein, DCI blind detection is completed in the search space configured by the first configuration information, which may include any one of the following ways a to c. In other words, when the first configuration information satisfies any one of the following ways a to c, it is considered that DCI blind detection is completed in the search space configured by the first configuration information.

Method a: All search spaces configured by the first configuration information have undergone DCI blind inspection. The search space here refers to the effective search space configured by the first configuration information.

Method b: DCI is detected in the search space configured by the first configuration information. That is to say, the embodiment of the present application supports a technical solution for stopping DCI blind detection of a search space configured for the configuration information after detecting a DCI in the search space configured for the configuration information.

As an example, the application scenarios of mode b may include the following:

Application scenario 1: If the primary and secondary network devices are distinguished in the manner described in Scheme 3 above, then for the secondary network device, only one DCI will be sent in a time slot. Therefore, the configuration information to configure the DCI That is to say, after detecting a DCI, the terminal can stop DCI blind detection of the search space configured for the configuration information.

Application scenario 2: DCI can be divided into primary and secondary DCI. It can be understood that in the scenario of a multi-station service terminal, part of the DCI information sent by different network devices to the terminal is the same and changes slowly; another part of the information in the multiple DCIs is different. In the embodiment of the present application, the primary DCI may send this part of the same information, and the primary DCI does not need to be sent in every time slot, let alone multiple network devices; the secondary DCI sends other information. Based on this, from the perspective of the terminal, there can be only one primary DCI in a specific time slot. Therefore, for the configuration information for configuring the primary DCI, the terminal can stop the configuration information after detecting a primary DCI Blind detection of the main DCI of the configured search space. It should be noted that in this scenario, there may be a case where the DCI configured by the configuration information includes the primary DCI and the secondary DCI.

Application scenario 3: If a terminal is served by multiple cells at the same time, the cell can be divided into primary and secondary cells. The difference between the primary and secondary cells is that the network devices in the primary cell can schedule eMBB services and URLLC services. Of network devices can schedule eMBB services but not URLLC services. Based on this, for the configuration information received in the secondary cell, after detecting one DCI, the terminal may stop DCI blind detection of the search space configured for the configuration information. The "cell" in the application scenario 3 can be replaced with a "cell group", thereby forming a new application scenario.

It can be understood that the above application scenarios 1 to 3 are all described based on the technical solution provided by the embodiments of the present application in a scenario where a multi-station service terminal is applied. In specific implementation, the “network devices” in the above application scenarios 1 to 3 are applied. "Replace with "antenna panel", you can get the technical solution provided by the embodiments of the present application applied to the scenario of multiple panels in a single station.

Manner c: For the first configuration information, there is no remaining number of blind checks or the remaining number of non-overlapping CCEs. That is, the number of remaining blind checks for the first configuration information is 0 or the number of remaining non-overlapping CCEs is 0. For the specific implementation manner of this manner c, refer to the following.

In addition, optionally, for a specific implementation manner in which DCI blind detection is completed in the search space configured by the first configuration information, reference may be made to the prior art, and details are not described herein again.

Optionally, S104 can be implemented in the following manner 1 or manner 2:

Method 1: S104 may include the following steps:

Step 1: According to the terminal's maximum number of blind checks, the terminal's maximum number of non-overlapping CCEs and the value of N, determine the maximum number of blind checks and the maximum number of non-overlapping CCEs corresponding to each configuration information.

Specifically, divide the maximum number of blind detections of the terminal into N shares, and take the nth share as the maximum number of blind detections corresponding to the nth configuration information; Similarly, divide the maximum number of non-overlapping CCEs of the terminal into N shares, and Let the nth share be the maximum number of non-overlapping CCEs corresponding to the nth configuration information. 1≤n≤N, n is an integer. The maximum number of blind checks corresponding to any two configuration information may be equal or different. The maximum number of non-overlapping CCEs corresponding to any two configuration information may be equal or unequal.

In some embodiments of the present application, if the value of the target parameter cannot be divided equally into N shares, the remainder obtained in the dividing process is divided into different configuration information. The target parameter includes the maximum number of blind detections or the maximum number of non-overlapping CCEs of the terminal.

In other embodiments of the present application, for any piece of configuration information, the configuration information may include indication information. Optionally, the indication information may be used to indicate the ratio of the maximum number of blind detections corresponding to the configuration information to the maximum number of blind detections of the terminal, and/or the number of maximum non-overlapping CCEs corresponding to the configuration information accounting for the maximum non-overlapping CCEs of the terminal The ratio of numbers. Here "proportion" can be replaced with other equivalent concepts, such as percentage. When the indication information includes the ratio of the maximum number of blind tests corresponding to the configuration information to the maximum number of blind tests of the terminal, the terminal may determine the maximum number of blind tests corresponding to the configuration information based on the indication information. When the indication information includes the ratio of the maximum number of non-overlapping CCEs corresponding to the configuration information to the maximum number of non-overlapping CCEs of the terminal, the terminal may determine the maximum number of non-overlapping CCEs corresponding to the configuration information based on the indication information. In addition, optionally, the indication information may be used to indicate the maximum number of blind detections corresponding to the configuration information and/or the maximum number of non-overlapping CCEs corresponding to the configuration information.

Step 2: For each configuration information, based on the maximum number of blind checks corresponding to the configuration information and the maximum number of non-overlapping CCEs, perform DCI blind detection in the search space configured by the configuration information.

Optionally, for any configuration information (hereinafter labeled as first configuration information), the terminal may perform the following steps:

First, sort the multiple search space sets configured by the first configuration information, for example, sort the IDs of the multiple search space sets from small to large (or from large to small, etc.).

Then, for the search space set i obtained after sorting, if the number of remaining blind inspections corresponding to the configuration information is greater than or equal to the number of blind inspections required for DCI blind inspection in the search space included in the search space set i, and, If the number of remaining non-overlapping CCEs corresponding to the configuration information is greater than or equal to the number of non-overlapping CCEs of the search space set i, blind DCI inspection is performed in the search space included in the search space set i, and when i<J-1, i +1 is assigned to i, and this step is performed again. When i=J-1, the DCI blind inspection process ends. Among them, the initial value of i is 0, 0≤i≤J-1. J is the number of search space sets configured by the first configuration information. otherwise:

In an implementation manner, the terminal may discard the search space set, that is, no longer perform DCI blind detection in the search space included in the search space set, and end the DCI blind detection process for the configuration information.

In another implementation, the terminal may continue to perform DCI blind inspection in the search space included in the search space set until there is no remaining number of blind inspections or no remaining number of non-overlapping CCEs for the configuration information. DCI blind inspection process of configuration information. This can improve the utilization rate of the blind detection times of the terminal and help reduce the DCI discard rate.

Optionally, for multiple configuration information, the terminal may perform DCI blind detection of the search space configured for the multiple configuration information serially or in parallel. Whether the serial mode or the parallel mode is used may be determined by the terminal according to its own ability to process information. Of course, the terminal may also perform DCI blind detection on the search space configured by a part of the configuration information in the N configuration information in a serial manner, and perform DCI blind detection on the search space configured by another part of the configuration information in a parallel manner.

The N configuration information includes first configuration information and second configuration information, and the first configuration information is any one of the N configuration information, and the second configuration information is the first configuration information except the first configuration information Taking any configuration information other than the information as an example, performing DCI blind detection in a search space configured for multiple configuration information serially may include: after the terminal completes the DCI blind detection in the search space configured by the first configuration information, Perform DCI blind detection in the search space configured by the second configuration information. Performing parallel DCI blind inspection for the search space configured by the multiple configuration information may include: the terminal performs the DCI blind inspection in the search space configured by the first configuration information while executing the DCI blind inspection configured by the second configuration information Perform blind DCI in the search space.

Optionally, when the N configuration information includes the first configuration information and the second configuration information, the method shown in FIG. 3 may further include: after the DCI blind detection is completed in the search space configured by the first configuration information, if The search space configured by the first configuration information still has the number of remaining blind detections and the number of remaining non-overlapping CCEs, and then the maximum number of blind detections and the maximum number of non-overlapping CCEs corresponding to the second configuration information are updated. Based on this, step 2 in the above manner 1 may include: performing DCI blind inspection in the search space configured by the second configuration information according to the maximum number of blind inspections and the maximum number of non-overlapping CCEs corresponding to the updated second configuration information. The optional implementation manner may be applied to a scenario where DCI blind inspection of search spaces configured for multiple configuration information is performed serially or in parallel. Based on this optional implementation, the terminal may allocate the remaining number of blind inspections and the remaining number of non-overlapping CCEs corresponding to the configuration information to another configuration information after completing DCI blind inspection in the search space configured by the configuration information. There will be more DCI blind inspection opportunities for the search space configured for the other configuration information, so that the utilization rate of the terminal's blind inspection times can be improved.

Based on method 1, for a specific implementation manner in which DCI blind detection is completed in the search space configured by the first configuration information, reference may be made to any one of the foregoing methods a to c.

Method 2: If the search space set configured by the N configuration information includes a first search space set and a second search space set, and the two search space sets are search space sets configured by different configuration information, S104 may include the following step:

Step 1: According to the number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal, perform DCI blind inspection in the search space included in the first search space set. The remaining number of blind checks of the terminal is determined based on the maximum number of blind checks of the terminal, and the number of remaining non-overlapping CCEs of the terminal is determined based on the maximum number of non-overlapping CCEs of the terminal.

Specifically, if step 1 is performed, the remaining number of blind checks of the terminal is greater than or equal to the number of blind checks required for DCI blind checking in the search space included in the first search space set, and the number of remaining non-overlapping CCEs of the terminal If the number of non-overlapping CCEs is greater than or equal to the first search space set, then DCI blind detection is performed in the search space included in the first search space set.

It can be understood that if the first search space set is the first search space set when the terminal performs DCI blind detection on the search space configured by the received N configuration information, the remaining number of blind detections of the terminal is equal to the maximum blindness of the terminal The number of detections, and the number of remaining non-overlapping CCEs of the terminal is equal to the maximum number of non-overlapping CCEs of the terminal. If the first search space set is not the first search space set when the terminal performs DCI blind detection on the search space configured by the received N configuration information, the remaining number of blind detections of the terminal is equal to the terminal's maximum blind detection times minus the used The value obtained by the number of blind detections of the terminal, and the number of remaining non-overlapping CCEs of the terminal is equal to the value of the maximum number of non-overlapping CCEs of the terminal minus the number of used non- overlapping CCEs.

Step 2: After the DCI blind inspection is completed in the search space included in the first search space set, the number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal are updated.

Step 3: Perform blind DCI inspection in the search space included in the second search space set according to the updated number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal.

Specifically, if the number of remaining blind checks of the updated terminal is greater than or equal to the number of blind checks required for DCI blind checking in the search space included in the second search space set, and the number of remaining non-overlapping CCEs of the updated terminal is greater than Or equal to the number of non-overlapping CCEs in the second search space set, then perform blind DCI inspection in the search space included in the second search space set.

In an implementation manner, method 2 may include: first, the terminal sorts the search space set configured by each configuration information, for example, according to the order of the search space set ID from small to large (or from large to small or in order) ) Sort; Then, first complete the DCI blind detection in the search space included in the t th remaining search space set configured by all the configuration information remaining in the N configuration information, and then configure the first in the remaining configuration information. DCI blind detection is performed in the search space included in the t+1 remaining search space sets. t=1, 2,..., T-1, and T is the minimum value of the number of remaining search space sets configured by each of the remaining configuration information. By analogy, until DCI blind detection is completed in the search space configured by the N configuration information, or the number of remaining blind detections of the terminal is 0 or the number of remaining non-overlapping CCEs of the terminal is 0. Among them, the remaining configuration information in the N configuration information refers to the configuration information in which the DCI blind inspection has not been performed among the N configuration information. The remaining set of search spaces configured by the configuration information refers to the set of search spaces configured by the configuration information that has not been subjected to DCI blind inspection.

For example, if the N configuration information is configuration information 1 and configuration information 2, and configuration information 1 is configured with search space sets 1A, 1B, and 1C, and configuration information 2 is configured with search space sets 2A, 2B, and 2C, the terminal performs DCI blind The sequence of search space sets targeted by the inspection may be: search space sets 1A, 2A, 1B, 2B, 1C, and 2C.

As another example, if the N configuration information is configuration information 1 and configuration information 2, and configuration information 1 configures search space sets 1A, 1B, 1C, 1D, and 1E, and configuration information 2 configures search space sets 2A, 2B, and 2C, Then, the sequence of search space sets targeted by the terminal for performing DCI blind inspection may be: search space sets 1A, 2A, 1B, 2B, 1C, 2C, 1D, and 1E. Understandably, after the DCI blind detection of the search space included in the search space set 2C is completed, the remaining configuration information in the N configuration information is configuration information 1, and the remaining search space set configured by the configuration information 1 is the search space set 1D and 1E.

Based on manner 2, for a specific implementation manner in which DCI blind detection is completed in the search space configured by the first configuration information, reference may be made to any one of the foregoing manners a to b.

The above mainly introduces the solutions provided by the embodiments of the present application from the perspective of a method. In order to realize the above-mentioned functions, it includes hardware structures and/or software modules corresponding to performing each function. Those skilled in the art should be easily aware that, in conjunction with the exemplary units and algorithm steps described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driven hardware depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

The embodiments of the present application may divide the function modules of the DCI detection device (specifically the terminal) according to the above method example, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated in one process Module. The above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another division manner.

As shown in FIG. 4, it is a schematic structural diagram of a DCI detection device 40 provided by an embodiment of the present application. As an example, the device 40 may specifically be a terminal. The device 40 may include a receiving unit 401 and a processing unit 402. The receiving unit 401 is configured to receive N configuration information, and each configuration information is used to configure at least one search space set, and each search space set includes at least one search space; N≥2, and N is an integer. The processing unit 402 is configured to determine, according to the N configuration information, to perform blind control of the downlink control information DCI in the search space configured by the N configuration information. For example, referring to FIG. 3, the device 40 may specifically be the terminal in FIG. 3, the receiving unit 401 may be used to execute S102, and the processing unit 402 may be used to execute S103.

Optionally, the configuration information is PDCCH configuration, control resource set group configuration, search space set group configuration, cell configuration, cell group configuration, or DCI scrambling code configuration.

Optionally, the processing unit 402 is further configured to perform DCI blind detection in a search space configured by N configuration information according to the maximum number of blind detections of the terminal and the maximum number of non-overlapping control channel elements CCE of the terminal. For example, in conjunction with FIG. 3, the processing unit 402 may be used to perform S104.

Optionally, the processing unit 402 is specifically configured to determine the maximum number of blind inspections and the maximum number of non-overlapping CCEs corresponding to each configuration information according to the maximum number of blind inspections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the value of N; For each configuration information, based on the maximum number of blind detections corresponding to the configuration information and the maximum number of non-overlapping CCEs, DCI blind detection is performed in the search space configured by the configuration information.

Optionally, the search space set configured by the N configuration information includes a first search space set and a second search space set, and the first search space set and the second search space set are search space sets configured by different configuration information; processing The unit 402 is specifically configured to: perform blind DCI inspection in the search space included in the first search space set according to the remaining blind inspection times of the terminal and the remaining non-overlapping CCE numbers of the terminal; the remaining blind inspection times of the terminal are based on the maximum blindness of the terminal The number of inspections is determined, and the number of remaining non-overlapping CCEs of the terminal is determined based on the maximum number of non-overlapping CCEs of the terminal; after the DCI blind inspection is completed in the search space included in the first search space set, the terminal’s remaining number of blind inspections and the terminal are updated Number of remaining non-overlapping CCEs; According to the updated number of remaining blind detections of the terminal and the number of remaining non-overlapping CCEs of the terminal, blind DCI detection is performed in the search space included in the second search space set.

Optionally, the N configuration information includes first configuration information, and the processing unit 402 is further configured to stop searching configured in the first configuration information if the DCI blind inspection is completed in the search space configured by the first configuration information DCI blind inspection is performed in the space; where the DCI blind inspection is completed in the search space configured by the first configuration information, including: all search spaces configured by the first configuration information have undergone DCI blind inspection; or, in the first DCI is detected in the search space configured by the configuration information; or, for the first configuration information, there is no remaining number of blind checks or the remaining number of non-overlapping CCEs.

Optionally, the N configuration information includes first configuration information and second configuration information, and the processing unit 402 is further configured to, after completing DCI blind inspection in the search space configured by the first configuration information, if the first configuration information There are still remaining blind detection times and remaining non-overlapping CCE numbers in the configured search space, and then the maximum blind detection times and the maximum non-overlapping CCE numbers corresponding to the second configuration information are updated. In this case, the processing unit 402 is specifically configured to perform DCI blind inspection in the search space configured by the second configuration information according to the maximum number of blind inspections and the maximum number of non-overlapping CCEs corresponding to the updated second configuration information.

Optionally, the N configuration information includes target configuration information; the processing unit 402 is specifically configured to: according to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target aggregation level, set the search space set in the target configuration information DCI blind inspection is performed in the included search space, and the target aggregation level is greater than or equal to a preset threshold; or, based on the terminal’s maximum number of blind inspections, the terminal’s maximum number of non-overlapping CCEs, and the target DCI format, the search configured in the target configuration information DCI blind detection is performed in the search space included in the space set; or, based on the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target time domain symbol, in the search space included in the search space set configured by the target configuration information Perform a blind DCI test.

As an example, the above-mentioned receiving unit 401 may be implemented through the communication interface 204 in FIG. 2. The above-mentioned processing unit 402 may be implemented by the memory 203 in FIG. 2 and the processor (such as the processor 201 and/or the processor 207).

It can be understood that, for any of the terminology, specific implementation, and beneficial effects involved in any one of the DCI detection device embodiments provided above, reference may be made to the corresponding method embodiment section above, which is not repeated here.

An embodiment of the present application also provides a communication system, including a terminal and one or more network devices. Wherein, the terminal may be the corresponding DCI detection device 40 provided above. The multiple antenna panels of the one network device or the multiple network devices may cooperate in data transmission of a terminal or jointly receive data sent by a terminal.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer-executed instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server, or data center via wire (e.g. Coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (such as infrared, wireless, microwave, etc.) to another website, computer, server, or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers and data centers that can be integrated with the medium. Usable media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, solid state disk (SSD)), etc.

Although the application has been described in conjunction with various embodiments herein, in the process of implementing the claimed application, those skilled in the art can understand and realize the disclosure by viewing the drawings, the disclosure, and the appended claims Other changes to the embodiment. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill several functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the present application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to cover any and all modifications, changes, combinations, or equivalents within the scope of the present application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

A method for detecting DCI of downlink control information is characterized in that it is applied to a terminal, and the method includes:

Receiving N configuration information, each of which is used to configure at least one search space set, and each search space set includes at least one search space; N≥2, where N is an integer;

According to the N pieces of configuration information, it is determined to perform DCI blind detection in the search space configured by the N pieces of configuration information.
The method according to claim 1, wherein the configuration information is a physical downlink control channel PDCCH configuration, a control resource set group configuration, a search space set group configuration, a cell configuration, a cell group configuration, or a DCI scrambling code configuration.
The method according to claim 1 or 2, wherein the method further comprises:

According to the maximum number of blind detections of the terminal and the maximum number of non-overlapping control channel elements CCEs of the terminal, perform DCI blind detection in the search space configured by the N configuration information.
The method according to claim 3, wherein the DCI is performed in the search space configured by the N configuration information according to the maximum number of blind detections of the terminal and the maximum number of non-overlapping CCEs of the terminal Blind screening includes:

Determine the maximum number of blind checks and the maximum number of non-overlapping CCEs corresponding to each of the configuration information according to the maximum number of blind checks of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the value of N.

For each of the configuration information, based on the maximum number of blind detections corresponding to the configuration information and the maximum number of non-overlapping CCEs, DCI blind detection is performed in the search space configured by the configuration information.
The method according to claim 3, wherein the search space set configured by the N pieces of configuration information includes a first search space set and a second search space set, and the first search space set and the second The search space set is a set of search spaces configured by different configuration information; the process is performed in the search space configured by the N configuration information according to the maximum number of blind detections of the terminal and the maximum number of non-overlapping CCEs of the terminal DCI blind inspection, including:

According to the number of remaining blind checks of the terminal and the number of remaining non-overlapping CCEs of the terminal, perform DCI blind checking in the search space included in the first search space set; the number of remaining blind checks of the terminal is based on the The maximum number of blind detections of the terminal is determined, and the number of remaining non-overlapping CCEs of the terminal is determined based on the maximum number of non-overlapping CCEs of the terminal;

After the DCI blind inspection is completed in the search space included in the first search space set, update the number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal;

According to the updated number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal, blind DCI inspection is performed in the search space included in the second search space set.
The method according to any one of claims 1 to 5, wherein the N pieces of configuration information include first configuration information, and the method further includes:

If the DCI blind inspection is completed in the search space configured by the first configuration information, stop the DCI blind inspection in the search space configured by the first configuration information;

Wherein, the DCI blind inspection is completed in the search space configured by the first configuration information, including: all search spaces configured by the first configuration information have been subjected to DCI blind inspection; or, in the first DCI is detected in the search space configured by the configuration information.
The method according to claim 4, wherein the N pieces of configuration information include first configuration information, and the method further includes:

If the DCI blind inspection is completed in the search space configured by the first configuration information, stop the DCI blind inspection in the search space configured by the first configuration information;

Wherein, the completion of the DCI blind inspection in the search space configured by the first configuration information includes: there is no remaining number of blind inspections or the number of remaining non-overlapping CCEs for the first configuration information.
The method according to claim 4, wherein the N pieces of configuration information include first configuration information and second configuration information, and the method further includes:

After the DCI blind detection is completed in the search space configured by the first configuration information, if the search space configured by the first configuration information still has the number of remaining blind detections and the number of remaining non-overlapping CCEs, the first 2. The maximum number of blind checks and the maximum number of non-overlapping CCEs corresponding to the configuration information;

For each of the configuration information, based on the maximum number of blind detections and the maximum number of non-overlapping CCEs corresponding to the configuration information, performing DCI blind detection in the search space configured by the configuration information includes:

Perform blind DCI inspection in the search space configured by the second configuration information according to the updated maximum number of blind inspections corresponding to the second configuration information and the maximum number of non-overlapping CCEs.
The method according to any one of claims 1 to 8, wherein the N configuration information includes target configuration information, and the maximum blind detection times of the terminal and the maximum number of non-overlapping CCEs of the terminal , Performing blind DCI inspection in the search space configured by the N pieces of configuration information, including:

According to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target aggregation level, perform DCI blind detection in the search space included in the search space set configured by the target configuration information, and the target aggregation The level is greater than or equal to the preset threshold;

Or, according to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target DCI format, perform DCI blind detection in the search space included in the set of search spaces configured by the target configuration information;

Alternatively, according to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and target time-domain symbols, blind DCI detection is performed in a search space included in the set of search spaces configured by the target configuration information.
A terminal is characterized in that the terminal includes:

The transceiver unit is configured to receive N configuration information, and each of the configuration information is used to configure at least one search space set, and each search space set includes at least one search space; N≥2, where N is an integer;

The processing unit is configured to determine, according to the N pieces of configuration information, to perform blind control of DCI in the search space configured by the N pieces of configuration information.
The terminal according to claim 10, wherein the configuration information is a physical downlink control channel PDCCH configuration, a control resource set group configuration, a search space set group configuration, a cell configuration, a cell group configuration, or a DCI scrambling code configuration.
The terminal according to claim 10 or 11, wherein

The processing unit is further configured to perform DCI blind detection in the search space configured by the N configuration information according to the maximum number of blind detections of the terminal and the maximum number of non-overlapping control channel elements CCE of the terminal.
The terminal according to claim 12, wherein the processing unit is specifically configured to:

Determine the maximum number of blind checks and the maximum number of non-overlapping CCEs corresponding to each of the configuration information according to the maximum number of blind checks of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the value of N.

For each of the configuration information, based on the maximum number of blind detections corresponding to the configuration information and the maximum number of non-overlapping CCEs, DCI blind detection is performed in the search space configured by the configuration information.
The terminal according to claim 12, wherein the search space set configured by the N pieces of configuration information includes a first search space set and a second search space set, and the first search space set and the second The search space set is a search space set configured by different configuration information; the processing unit is specifically used for:

According to the number of remaining blind checks of the terminal and the number of remaining non-overlapping CCEs of the terminal, perform DCI blind checking in the search space included in the first search space set; the number of remaining blind checks of the terminal is based on the The maximum number of blind detections of the terminal is determined, and the number of remaining non-overlapping CCEs of the terminal is determined based on the maximum number of non-overlapping CCEs of the terminal;

After the DCI blind inspection is completed in the search space included in the first search space set, update the number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal;

According to the updated number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal, blind DCI inspection is performed in the search space included in the second search space set.
The terminal according to any one of claims 10 to 14, wherein the N pieces of configuration information include first configuration information, and the processing unit is further configured to search if configured in the first configuration information After the DCI blind inspection is completed in the space, stop the DCI blind inspection in the search space configured by the first configuration information;

Wherein, the DCI blind inspection is completed in the search space configured by the first configuration information, including: all search spaces configured by the first configuration information have been subjected to DCI blind inspection; or, in the first DCI is detected in the search space configured by the configuration information.
The terminal according to claim 13, wherein the N pieces of configuration information include first configuration information, and the processing unit is further configured to, if DCI is completed in a search space configured by the first configuration information Blind inspection, then stop DCI blind inspection in the search space configured by the first configuration information;

Wherein, the completion of the DCI blind inspection in the search space configured by the first configuration information includes: there is no remaining number of blind inspections or the number of remaining non-overlapping CCEs for the first configuration information.
The terminal according to claim 13, wherein the N pieces of configuration information include first configuration information and second configuration information, and the processing unit is further configured to search in the search space configured in the first configuration information After the DCI blind inspection is completed, if the search space configured by the first configuration information still has the number of remaining blind inspections and the number of remaining non-overlapping CCEs, the maximum number of blind inspections and the maximum number of non-overlapping CCEs corresponding to the second configuration information are updated Number of overlapping CCEs;

The processing unit is specifically configured to perform DCI blind inspection in the search space configured by the second configuration information according to the maximum number of blind inspections and the maximum number of non-overlapping CCEs corresponding to the updated second configuration information.
The terminal according to any one of claims 10 to 17, wherein the N pieces of configuration information include target configuration information; the processing unit is specifically configured to:

According to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target aggregation level, perform DCI blind detection in the search space included in the search space set configured by the target configuration information, and the target aggregation The level is greater than or equal to the preset threshold;

Or, according to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target DCI format, perform DCI blind detection in the search space included in the set of search spaces configured by the target configuration information;

Or, according to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target time domain symbol, perform DCI blind detection in the search space included in the set of search spaces configured by the target configuration information.
A DCI detection device for downlink control information, characterized in that it includes a memory and a processor; the memory is used to store program code; and the processor is used to call the program code, so that the device implements claims 1 to 9 The method of any one.
A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is run on a computer, the computer is allowed to execute any one of claims 1 to 9. Described method.
A DCI detection device for downlink control information is characterized by comprising:

The transceiver is used to receive N configuration information, and each of the configuration information is used to configure at least one search space set, and each search space set includes at least one search space; N≥2, where N is an integer;

The processor is configured to determine to perform DCI blind detection in the search space configured by the N pieces of configuration information according to the N pieces of configuration information.
A processor, characterized in that the processor is used for:

Enter N pieces of configuration information, each of which is used to configure at least one search space set, and each search space set includes at least one search space; N≥2, where N is an integer;

According to the N pieces of configuration information, it is determined to perform DCI blind detection in the search space configured by the N pieces of configuration information.
A DCI detection device for downlink control information is characterized by comprising:

The communication interface is used to receive N configuration information, and each of the configuration information is used to configure at least one search space set, and each search space set includes at least one search space; N≥2, where N is an integer;

The processor is configured to determine to perform DCI blind detection in the search space configured by the N pieces of configuration information according to the N pieces of configuration information.
A DCI detection device for downlink control information is characterized by comprising: a processing circuit and a communication interface;

The processing circuit is used to receive N configuration information through the communication interface, and each of the configuration information is used to configure at least one search space set, and each search space set includes at least one search space; N≥2, the N Is an integer; and, based on the N pieces of configuration information, it is determined to perform DCI blind detection in the search space configured by the N pieces of configuration information.
A computer program product, characterized in that, when the computer program product runs on a computer, the method according to any one of claims 1 to 9 is executed.
A communication chip, characterized in that instructions are stored in the communication chip, and when the communication chip runs on a terminal, the terminal is caused to perform the method of any one of claims 1 to 9.