Blind detection method and device and storage medium

Abstract

The invention provides a blind detection method and device and a storage medium, relates to the technical field of communication, and can reduce the transmission delay in a 5G network communication process as much as possible and improve the reliability of information transmission in the 5G network communication process, thereby meeting the URLLC application scene requirements of a 6G network as much as possible. The method comprises: a terminal receiving information required by blind detection of at least one piece of control information from a network device and at least one piece of control information, the control information being used for indicating the terminal to receive information required by downlink data from the network device, or the control information being used for indicating the terminal to send information required by uplink data to the network device; and the terminal obtains at least one piece of control information through blind detection based on the information required for blind detection of the at least one piece of control information.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a blind detection method, device and storage medium. Background Art

[0002] With the mature development and widespread deployment of the fifth generation mobile communication technology (5G), the mobile communication field has begun to explore and research the sixth generation mobile communication technology (6G). The 6G network mainly provides ultra-low latency and high reliability communication services to adapt to application scenarios that require real-time response and high reliability of data transmission, such as autonomous driving scenarios or telemedicine scenarios.

[0003] At present, during the physical layer downlink transmission process of the network, the network equipment transmits downlink control information (DCI) to the terminal through the physical downlink control channel (PDCCH). Accordingly, in order to receive the corresponding DCI, the terminal needs to attempt to decode multiple possible PDCCH candidates in the search space defined by the network equipment until the corresponding DCI is obtained. The process in which the terminal attempts to decode multiple PDCCH candidates is called a blind detection process. However, the process of blind detection of multiple possible PDCCH candidates by the terminal increases the time for the terminal to obtain the corresponding DCI, thereby increasing the transmission delay of the 5G network, making the transmission delay of the 5G network unable to meet the ultra-low latency requirements of the 6G network. Summary of the invention

[0004] The present application provides a blind detection method, device and storage medium, which can reduce the transmission delay in the 5G network communication process as much as possible, and thus meet the ultra-reliable and low latency communications (URLLC) application scenario requirements of the 6G network as much as possible.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a blind detection method, the method comprising: receiving information required for blind detection of at least one control information from a network device, and at least one control information, the control information being used to indicate information required for a terminal to receive downlink data from the network device, or the control information being used to indicate information required for a terminal to send uplink data to the network device; based on the information required for blind detection of at least one control information, blind detection obtains at least one control information.

[0007] In one possible implementation, the information required for blind detection of any one of at least one control information includes at least one of the following: the format of any one of the control information, the amount of information of any one of the control information, the time domain resources of any one of the control information, the frequency domain resources of any one of the control information, or the aggregation level (AL) of the downlink control channel corresponding to any one of the control information.

[0008] In one possible implementation, when the information required for blind detection of at least one control information is the information required for blind detection of the first control information, the information required for blind detection of the first control information is carried in the second control information, wherein the first control information is any one of the at least one control information, the difference between the time of receiving the second control information and the time of receiving the first control information is the smallest, and the second control information is the control information received before receiving the first control information.

[0009] In one possible implementation, the information required to blindly detect at least one control information is the information required to blindly detect N control information, where N is a positive integer, N is greater than 1, and N is less than or equal to the number of control information predicted to be sent by the network device within a preset time period.

[0010] In a possible implementation manner, the at least one data corresponding to the at least one control information includes at least one data predicted to be requested by the terminal for scheduling transmission.

[0011] In a second aspect, the present application provides a blind detection method, which includes: predicting at least one data requested by a terminal for scheduling transmission, and determining, based on the at least one data, information required for blindly detecting at least one control information corresponding to the at least one data, the control information being used to indicate information required for the terminal to receive downlink data from a network device, or the control information being used to indicate information required for the terminal to send uplink data to the network device; sending information required for blindly detecting at least one control information, as well as at least one control information, to the terminal.

[0012] In one possible implementation, the information required for blind detection of any one of at least one control information includes at least one of the following: the format of any one of the control information, the amount of information of any one of the control information, the time domain resources of any one of the control information, the frequency domain resources of any one of the control information, or the aggregation level of the downlink control channel corresponding to any one of the control information.

[0013] In one possible implementation, when the information required for blind detection of at least one control information is the information required for blind detection of the first control information, the information required for blind detection of the first control information is carried in the second control information, wherein the first control information is any one of the at least one control information, the difference between the time of receiving the second control information and the time of receiving the first control information is the smallest, and the second control information is the control information received before receiving the first control information.

[0014] In one possible implementation, the information required to blindly detect at least one control information is the information required to blindly detect N control information, where N is a positive integer, N is greater than 1, and N is less than or equal to the number of control information predicted to be sent by the network device within a preset time period.

[0015] In a possible implementation manner, the method further includes: determining at least one data predicted to be requested by the terminal for scheduling transmission as at least one data corresponding to at least one control information.

[0016] In a third aspect, the present application provides a blind detection device, the device comprising: a communication unit and a processing unit;

[0017] A communication unit is used to receive information required for blind detection of at least one control information from a network device, and at least one control information, where the control information is used to indicate the information required for a terminal to receive downlink data from the network device, or the control information is used to indicate the information required for a terminal to send uplink data to the network device.

[0018] A processing unit is used to obtain at least one control information by blind detection based on information required for blind detection of at least one control information.

[0019] In one possible implementation, the information required for blind detection of any one of at least one control information includes at least one of the following: the format of any one of the control information, the amount of information of any one of the control information, the time domain resources of any one of the control information, the frequency domain resources of any one of the control information, or the aggregation level of the downlink control channel corresponding to any one of the control information.

[0020] In one possible implementation, when the information required for blind detection of at least one control information is the information required for blind detection of the first control information, the information required for blind detection of the first control information is carried in the second control information, wherein the first control information is any one of the at least one control information, the difference between the time of receiving the second control information and the time of receiving the first control information is the smallest, and the second control information is the control information received before receiving the first control information.

[0021] In one possible implementation, the information required to blindly detect at least one control information is the information required to blindly detect N control information, where N is a positive integer, N is greater than 1, and N is less than or equal to the number of control information predicted to be sent by the network device within a preset time period.

[0022] In a possible implementation manner, the at least one data corresponding to the at least one control information includes at least one data predicted to be requested by the terminal for scheduling transmission.

[0023] In a fourth aspect, the present application provides a blind detection device, the device comprising: a communication unit and a processing unit;

[0024] A processing unit is used to predict at least one data requested by the terminal for scheduling transmission, and determine the information required for blindly detecting at least one control information corresponding to the at least one data based on the at least one data, where the control information is used to indicate the information required for the terminal to receive downlink data from the network device, or the control information is used to indicate the information required for the terminal to send uplink data to the network device.

[0025] A communication unit is used to send information required for blind detection of at least one control information and at least one control information to the terminal.

[0026] In one possible implementation, the information required for blind detection of any one of at least one control information includes at least one of the following: the format of any one of the control information, the amount of information of any one of the control information, the time domain resources of any one of the control information, the frequency domain resources of any one of the control information, or the aggregation level of the downlink control channel corresponding to any one of the control information.

[0027] In one possible implementation, when the information required for blind detection of at least one control information is the information required for blind detection of the first control information, the information required for blind detection of the first control information is carried in the second control information, wherein the first control information is any one of the at least one control information, the difference between the time of receiving the second control information and the time of receiving the first control information is the smallest, and the second control information is the control information received before receiving the first control information.

[0028] In one possible implementation, the information required to blindly detect at least one control information is the information required to blindly detect N control information, where N is a positive integer, N is greater than 1, and N is less than or equal to the number of control information predicted to be sent by the network device within a preset time period.

[0029] In a possible implementation manner, the method further includes: determining at least one data predicted to be requested by the terminal for scheduling transmission as at least one data corresponding to at least one control information.

[0030] In a fifth aspect, the present application provides a blind detection device, comprising: a processor and a communication interface; the communication interface and the processor are coupled, and the processor is used to run a computer program or instructions to implement the blind detection method described in the first aspect, the second aspect, and any possible implementation method thereof.

[0031] In a sixth aspect, the present application provides a computer-readable storage medium, which stores instructions. When the instructions are executed on a terminal, the terminal executes the blind detection method described in the first aspect and any possible implementation of the first aspect.

[0032] In a seventh aspect, the present application provides a computer program product comprising instructions. When the computer program product runs on a blind detection device, the blind detection device executes the blind detection method as described in the first aspect, the second aspect, and any possible implementation thereof.

[0033] In an eighth aspect, the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run a computer program or instructions to implement the blind detection method described in the first aspect, the second aspect, and any possible implementation thereof.

[0034] Specifically, the chip provided in the present application also includes a memory for storing computer programs or instructions.

[0035] In the blind detection method provided in the embodiment of the present application, the network device sends the information required for blind detection of at least one control information and at least one control information to the terminal. Correspondingly, the terminal can provide blind detection auxiliary information based on the information required for blind detection of at least one control information, narrow the blind detection range of at least one control information, and then obtain at least one control information by blind detection as quickly as possible. Compared with the terminal blindly performing blind detection on the control information from the network device, the blind detection method provided in the embodiment of the present application can reduce the number of blind detections in the process of blind detection of control information by the terminal, reduce the transmission delay in the 5G network communication process as much as possible, and improve the reliability of information transmission in the 5G network communication process, thereby meeting the URLLC application scenario requirements of the 6G network as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A structural diagram of a blind detection system provided in an embodiment of the present application;

[0037] Figure 2 A schematic diagram of the composition of a blind detection device provided in an embodiment of the present application;

[0038] Figure 3 A flowchart of a blind detection method provided in an embodiment of the present application;

[0039] Figure 4 An example diagram of information and / or data transmission between a network device and a terminal provided in an embodiment of the present application;

[0040] Figure 5 An example diagram of another embodiment of the present application providing transmission of control information and / or data between a network device and a terminal;

[0041] Figure 6 A schematic diagram of the structure of another blind detection device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] The blind detection method, device and storage medium provided in the embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0043] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0044] The terms "first" and "second" and the like in the specification and drawings of this application are used to distinguish different objects, or to distinguish different processing of the same object, rather than to describe a specific order of objects.

[0045] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0046] It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0047] In the description of the present application, unless otherwise specified, “plurality” means two or more.

[0048] In the field of mobile communications, a complete physical layer transmission process includes at least two parts: control information transmission and data transmission. The control information transmission process and the data transmission process include the uplink transmission process and the downlink transmission process. The uplink transmission process refers to the process of the terminal sending information to the network device, and the downlink transmission process refers to the process of the network device sending information to the terminal. The uplink transmission process and the downlink transmission process together constitute a complete physical layer communication link.

[0049] Taking the downlink transmission process as an example, the downlink transmission process at least includes the transmission process of DCI between the network device and the terminal, and the transmission process of downlink data between the network device and the terminal. In the case where the network device receives a request for scheduling transmission of downlink data from the terminal, the network device configures the corresponding PDCCH transmission time domain position, the corresponding PDCCH transmission frequency domain position, and the corresponding PDCCH aggregation level based on factors such as the network status of the current communication network, the amount of information of the downlink data requested to be scheduled for transmission by the terminal, and the resource availability of the downlink data requested to be scheduled for transmission by the terminal, and transmits the corresponding DCI to the terminal through the PDCCH.

[0050] Furthermore, in order to receive the DCI corresponding to the downlink data for which the scheduling transmission is requested, the terminal needs to attempt to decode multiple PDCCH candidates in the search space configured by the network device for the terminal until the decoding is successful and the DCI is obtained. The process in which the terminal attempts to decode multiple PDCCH candidates in the search space is called a blind detection process. The terminal receives the downlink data from the network device based on the DCI. The downlink data is carried on the physical downlink shared channel (PDSCH) and is sent by the network device to the terminal.

[0051] That is to say, during the downlink transmission process, the delay in the process of the terminal obtaining downlink data includes the transmission time of the PDCCH carrying the DCI, the time for the terminal to blindly detect multiple PDCCH candidates for decoding, the transmission time of the PDSCH carrying the downlink data, and the time for the terminal to decode the PDSCH to obtain the downlink data. The reliability of downlink data transmission depends on the reliability of PDCCH transmission and the reliability of PDSCH transmission.

[0052] URLLC is one of the key performance indicators introduced by 5G networks, which aims to enable communication networks to be used in application scenarios that have extremely high requirements for communication network latency and data transmission reliability. Compared with previous mobile communication technologies, 5G New Radio (NR) technology has made significant progress in reducing the latency of information transmission and increasing the reliability of information transmission.

[0053] The URLLC technology of 5G network enhances the reliability of PDCCH transmission: In 5G network, the number of bits of information carried by DCI can be compressed. Compressing the information carried by DCI increases the transmission code rate of PDCCH carrying DCI during downlink transmission, reduces the transmission time of PDCCH, and thus improves the transmission reliability of PDCCH.

[0054] In addition, the 15th version of the long term evolution wireless communication standard (Rel-15) and Rel-16 have contributed to the 5G network in meeting the high requirements of URLLC application scenarios. Among them, in Rel-15, the terminal needs to consume a lot of computing resources and time in the process of blind detection of multiple PDCCH candidates. Therefore, in order to ensure the normal operation of the terminal and extend the battery life of the terminal, Rel-15 limits the number of blind detections of multiple PDCCH candidates by the terminal by defining time slots. At the same time, in order to improve the utilization of transmission resources during information transmission and reduce potential factors that interfere with PDCCH transmission, Rel-15 also limits the number of non-overlapping control channel elements (CCE) that make up PDCCH by defining time slots.

[0055] In Rel-16, a time slot is divided into multiple time periods (spans) with smaller granularity, and the number of blind detections of PDCCH candidates by the terminal is limited based on span. This improvement increases the total number of PDCCH candidates in a single time slot, further improves the flexibility and reliability of PDCCH scheduling by network equipment, and thus enhances the terminal's monitoring capability of PDCCH.

[0056] In addition, the URLLC technology of the 5G network also encapsulates and optimizes the physical layer (PHY), medium access control (MAC), packet data convergence protocol (PDCP), and radio resource control (RRC) layers of the network that the data transmitted between the terminal and the network equipment and the DCI and other information pass through during the transmission process. The encapsulation and optimization of the above layers shortens the time interval for information transmission in the 5G network, optimizes the resource allocation strategy, and thus shortens the transmission time of information in the 5G network and the delay of waiting in line for information transmission, and increases the reliability of information transmission.

[0057] With the mature development and widespread deployment of 5G, the mobile communications field has begun to explore and research 6G. The International Telecommunication Union defines ultra-high reliability and low latency communication as one of the key application scenarios of 6G, and regards information transmission meeting ultra-low latency (for example, the latency between information transmissions is less than milliseconds) and information transmission meeting ultra-high reliability (for example, the reliability of information transmission reaches 99.99999%) as key capability indicators of 6G URLLC application scenarios, in order to provide users with higher quality communication network services.

[0058] Although the URLLC technology of 5G network has made significant progress in information transmission latency and reliability, the protocol layer design of URLLC service of 5G network is not much different from that of enhanced mobile broadband (eMBB) service of 5G network, that is, there is no special protocol layer distinction between URLLC service of 5G network and eMBB service. This similarity of protocol layer will make it difficult for URLLC service of 5G network to further guarantee the reliability of information transmission.

[0059] In addition, since the protocol process and end-to-end guarantee of URLLC services in 5G networks are not much different from those of eMBB services, URLLC services in 5G networks cannot obtain more targeted low-latency transmission paths. Therefore, it is difficult for URLLC services in 5G networks to further meet the requirements for lower information transmission latency.

[0060] Furthermore, since the DCI transmitted by the network device to the terminal is encoded and sent separately each time, that is, each DCI is independent in terms of content, size, and format. Therefore, as a physical channel carrying DCI, the PDCCH is independent of each other in terms of the transmission time domain position, frequency domain position, configuration, and number of aggregation levels of the PDCCH carrying different DCIs. In the process of obtaining each DCI, the terminal device must perform blind inspection on multiple possible PDCCH candidates. This increases the time it takes for the terminal to obtain the corresponding DCI, and thus increases the delay in information transmission during 5G network communications. In other words, the URLLC service of 5G cannot meet the key capability indicators of URLLC required by 6G.

[0061] In view of this, an embodiment of the present application provides a blind detection method, in which a network device sends information required for blind detection of at least one control information and at least one control information to a terminal. Accordingly, the terminal can provide blind detection auxiliary information based on the information required for blind detection of at least one control information, narrow the blind detection range of at least one control information, and then obtain at least one control information by blind detection as quickly as possible. Compared with the terminal blindly performing blind detection on the control information from the network device, the blind detection method provided in the embodiment of the present application can reduce the number of blind detections of the terminal's blind detection of control information, thereby reducing the transmission delay in the 5G network communication process as much as possible and improving the reliability of information transmission in the 5G network communication process, so as to meet the URLLC application scenario requirements of the 6G network as much as possible.

[0062] The technical solution provided in the embodiments of the present application can be applied to various communication systems, for example, a new air interface communication system using 5G, a future evolution system, or a multi-communication convergence system.

[0063] For example, Figure 1 A structural diagram of a blind detection system 10 provided in an embodiment of the present application is shown in FIG. The blind detection system 10 may include at least one terminal 101 and at least one network device 102, and the terminal 101 may be connected to the network device 102 for communication. Figure 1 Only one terminal 101 and one network device 102 are shown. The embodiment of the present application does not impose any restriction on the number of terminals 101 and network devices 102.

[0064] Terminal 101 is used to receive information required for blind detection of at least one control information from a network device, and at least one control information, where the control information is used to indicate the information required for the terminal to receive downlink data from the network device, or the control information is used to indicate the information required for the terminal to send uplink data to the network device; based on the information required for blind detection of at least one control information, at least one control information is obtained by blind detection.

[0065] Optionally, the terminal 101 may be a large-capacity device with wireless communication function (for example, a server integrating a large number of boards), which may be deployed on land, including indoors or outdoors, handheld or vehicle-mounted. It may also be deployed on the water surface (such as a ship, etc.). It may also be deployed in the air (for example, on an airplane, a balloon, a satellite, etc.).

[0066] Further, optionally, the blind detection method provided in the embodiment of the present application reduces the number of blind detections of the terminal on multiple downlink control channel candidates, thereby reducing the power consumed by the terminal in the process of blindly detecting multiple downlink control channel candidates. Since the power of a lightweight (reduced capability, Red Cap) 5G terminal is small, the terminal 101 can also be a lightweight 5G terminal, such as a wearable device, a smart home, or video surveillance.

[0067] Optionally, the network device 102 may be a device with wireless transceiver function or a chip or chip system that may be provided in the device. The network device 102 includes but is not limited to: a small base station, a wireless access point, a transceiver point (TRP), a transmission point (TP), a macro base station, a relay base station, and any other access node.

[0068] It should be noted that Figure 1 This is just an exemplary framework diagram. Figure 1 The number of nodes included in the Figure 1 In addition to the functional nodes shown, the blind detection system 10 may also include other nodes, and this application does not impose any limitation on this.

[0069] The application scenarios of the embodiments of the present application are not limited. The system architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. It is known to those skilled in the art that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0070] When implementing it specifically, Figure 1 The equipment in Figure 2 The structure shown, or including Figure 2 Parts shown. Figure 2 Schematic diagram of the composition of a blind detection device 20 provided in an embodiment of the present application, the blind detection device 20 may be a terminal 101 or a chip or a system on chip in the terminal 101. Alternatively, the blind detection device 20 may be a network device 102 or a chip or a system on chip in the network device 102. Figure 2 As shown, the blind detection device 20 may include a processor 201 , a communication line 202 , a communication interface 203 , and a memory 204 .

[0071] Furthermore, the blind detection device 20 may also include a communication interface 203 and a memory 204. The processor 201, the memory 204 and the communication interface 203 may be connected via a communication line 202.

[0072] The processor 201 is a central processing unit (CPU), a general processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. The processor 201 may also be other devices with processing functions, such as circuits, devices, or software modules, without limitation.

[0073] The communication line 202 is used to transmit information between the components included in the blind detection device 20.

[0074] The communication interface 203 is used to communicate with other devices or other communication networks. The other communication networks may be Ethernet, radio access network (RAN), wireless local area network (WLAN), etc. The communication interface 203 may be a module, a circuit, a communication interface or any device capable of achieving communication.

[0075] The memory 204 is used to store instructions, where the instructions may be computer programs.

[0076] The memory 204 may be a read-only memory (ROM) or other types of static storage devices that can store static information and / or instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and / or instructions, or an electrically erasable programmable read-only memory (EEPROM), a read-only optical disk, or a memory that can store data and / or instructions.

[0077] There are no restrictions on compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices.

[0078] It should be noted that the memory 204 can exist independently of the processor 201, or can be integrated with the processor 201. The memory 204 can be used to store instructions or program codes or some data, etc. The memory 204 can be located in the blind detection device 20, or can be located outside the blind detection device 20, without limitation. The processor 201 is used to execute the instructions stored in the memory 204 to implement the blind detection method provided in the following embodiments of the present application.

[0079] In an example, the processor 201 may include one or more CPUs, for example, CPU0 and CPU1 (not shown in the figure).

[0080] As an optional implementation, the blind detection device 20 includes multiple processors.

[0081] As an optional implementation, the blind detection device 20 further includes an output device and an input device. For example, the input device is a keyboard, a mouse, a microphone, a joystick, and the like, and the output device is a display screen, a speaker, and the like.

[0082] It should be noted that the blind detection device 20 can be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system or a Figure 2 In addition, Figure 2 The composition shown in the Figure 1 as well as Figure 2 The limitations of each device in Figure 2 In addition to the parts shown, Figure 1 as well as Figure 2 The various devices shown may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0083] In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices.

[0084] In addition, the actions, terms, etc. involved in the various embodiments of the present application can refer to each other without limitation. The message name or parameter name in the message exchanged between the various devices in the embodiments of the present application is only an example, and other names can also be used in the specific implementation without limitation.

[0085] Combine the following Figure 1The communication system shown describes the blind detection method provided in the embodiment of the present application. Among them, the actions, terms, etc. involved in the various embodiments of the present application can refer to each other without limitation. The message name or parameter name in the message exchanged between the various devices in the embodiment of the present application is only an example, and other names can also be used in the specific implementation without limitation. The actions involved in the various embodiments of the present application are only an example, and other names can also be used in the specific implementation, such as: "included in" in the embodiment of the present application can also be replaced by "carried on" or "carried in", etc.

[0086] In order to solve the problems existing in the above-mentioned prior art, the embodiment of the present application proposes a blind detection method, which can reduce the transmission delay in the 5G network communication process as much as possible and improve the reliability of information transmission in the 5G network communication process, thereby meeting the URLLC application scenario requirements of the 6G network as much as possible. Figure 3 As shown, the method includes:

[0087] S301, a network device sends information required for blind detection of at least one control information and at least one control information to a terminal. Correspondingly, the terminal receives information required for blind detection of at least one control information and at least one control information from the network device.

[0088] The control information is used to instruct the terminal to receive information required for downlink data from the network device, or the control information is used to instruct the terminal to send information required for uplink data to the network device.

[0089] Exemplarily, the control information recorded in the embodiment of the present application may be DCI. Of course, the above is only an exemplary description of the control information, and the control information recorded in the embodiment of the present application may also be other information in future communication systems. The embodiment of the present application does not impose any limitation on this.

[0090] In an optional implementation manner, the at least one data corresponding to the at least one control information includes at least one data predicted to be requested by the terminal for scheduling transmission.

[0091] Optionally, the implementation process of the above S301 may be: the network device obtains service information, and determines the information required for the terminal to blindly detect the control information corresponding to at least one data based on the service information. The network device sends the information required for blindly detecting at least one control information and at least one control information to the terminal. The service information includes relevant information of at least one data that the network device predicts the terminal to request for scheduling transmission.

[0092] As a possible implementation method, the implementation process of a network device sending information required for blind detection of at least one control information to a terminal can be: the network device establishes a bitmap (bit-mapping) based on the information required for blind detection of at least one control information. The network device sends information indicating the bit-mapping to the terminal. Among them, one bit in the above bit-mapping corresponds to information required for blind detection of one control information. In addition, one bit in the above bit-mapping can also correspond to information required for blind detection of multiple control information, or multiple bits in the above bit-mapping correspond to information required for blind detection of one control information, and the present application does not impose any restrictions on this.

[0093] In an optional implementation, the process of obtaining service information by the network device may be as follows: an artificial intelligence (AI) module in the network device collects statistics on historical data of terminal requests for scheduling transmission to obtain statistical results. The AI ​​module predicts at least one data requested by the terminal for scheduling transmission based on the statistical results, and determines the service information based on the at least one data. The AI ​​module sends the service information to the network device. Accordingly, the network device receives the service information from the AI ​​module.

[0094] In another optional implementation, the process of the network device acquiring the service information may be as follows: a processor in the network device collects statistics on historical data of the terminal requesting the scheduled transmission to obtain a statistical result. The processor predicts and obtains at least one data requested by the terminal for the scheduled transmission based on the statistical result, and determines the service information based on the at least one data. The processor sends the service information to the network device. Accordingly, the network device receives the service information from the processor.

[0095] Exemplarily, the service information may include at least one of the following: the type of at least one data that the terminal requests to be scheduled for transmission, the priority of at least one data, the total data volume of at least one data, or the arrival time of at least one data. Of course, the above is only an exemplary description of the service information provided by the present application, and the service information may also include other information, for example, background information of at least one data. The embodiments of the present application do not impose any restrictions on this.

[0096] In an optional implementation, the information required for blind detection of any one of the at least one control information includes at least one of the following: the format of any one of the control information, the amount of information of any one of the control information, the time domain resource of any one of the control information, the frequency domain resource of any one of the control information, or the aggregation level of the downlink control channel corresponding to any one of the control information. Of course, the above is an exemplary description of the information required for blind detection of at least one control information, and the information required for blind detection of at least one control information may also include other information, for example, power control command information of the control information. The embodiments of the present application do not impose any restrictions on this.

[0097] Exemplarily, the downlink control channel recorded in the embodiment of the present application may be a PDCCH. Of course, the above is only an exemplary description of the downlink control channel. In future communication systems, the downlink control channel recorded in the embodiment of the present application may also be other downlink channels. The embodiment of the present application does not impose any limitation on this.

[0098] In some examples, the time domain resources recorded in the embodiments of the present application may include at least one of the following: a frame, a time slot, or an orthogonal frequency division multiplexing (OFDM) symbol. Of course, the above is only an exemplary description of the resources included in the time domain resources, and the time domain resources may also include other resources, such as resource blocks (RBs). The embodiments of the present application do not impose any restrictions on this.

[0099] S302. The terminal obtains at least one control information by blind detection based on information required for blind detection of at least one control information.

[0100] As described above regarding "information required for blind detection of at least one control information", the information required for blind detection of at least one control information may include the format of the control information, the amount of information of the control information, the time domain resources of the control information, the frequency domain resources of the control information, or the aggregation level of the downlink control channel corresponding to the control information, etc., which are required for blind detection of the control information.

[0101] Further, optionally, taking the example where the information required for blind detection of at least one control information includes the information required for blind detection of one control information, and the information required for blind detection of the control information includes the aggregation level of the downlink control channel corresponding to the control information: if the aggregation level of the downlink control channel corresponding to the control information is 8, the terminal can perform blind detection on the downlink control channel with an aggregation level of 8 within the search space defined by the network device, and obtain the control information by blind detection.

[0102] It is understandable that the terminal device can screen the downlink control channels in the search space defined by the network device based on the information required for blind detection of at least one control information, obtain at least one downlink control channel in a smaller range, and blindly detect at least one control information in at least one downlink control channel in a smaller range. In other words, the information required for blind detection of at least one control information can narrow the blind detection range of the terminal for blind detection of at least one downlink control channel, thereby reducing the number of times the terminal blindly detects at least one downlink control channel.

[0103] In the blind detection method provided in the embodiment of the present application, the network device sends the information required for blind detection of at least one control information and at least one control information to the terminal. Correspondingly, the terminal can provide blind detection auxiliary information based on the information required for blind detection of at least one control information, narrow the blind detection range of at least one control information, and then obtain at least one control information by blind detection as quickly as possible. Compared with the terminal blindly performing blind detection on the control information from the network device, the blind detection method provided in the embodiment of the present application can reduce the number of blind detections of the terminal's blind detection of control information, reduce the transmission delay in the 5G network communication process as much as possible, and improve the reliability of information transmission in the 5G network communication process, thereby meeting the URLLC application scenario requirements of the 6G network as much as possible.

[0104] As can be seen from the above description of S302, the terminal receives the information required for blind detection of at least one control information. That is to say, the blind detection method recorded in the embodiment of the present application does not impose any restrictions on the number of control information involved, and therefore can be divided into the following two cases: Case 1, the information required for blind detection of at least one control information is the information required for blind detection of one control information; Case 2, the information required for blind detection of at least one control information is the information required for blind detection of N control information.

[0105] The information required for blindly detecting at least one control information in the above two situations is described in detail below.

[0106] Case 1: The information required for blind detection of at least one control information is the information required for blind detection of one control information (recorded as the first control information, that is, the first control information is any one of the at least one control information).

[0107] In case 1, optionally, the information required for blind detection of the first control information is carried in the second control information, wherein the difference between the time of receiving the second control information and the time of receiving the first control information is minimized, and the second control information is control information received before the terminal receives the first control information.

[0108] Exemplarily, taking the case where at least one control information includes control information 1, control information 2, control information 3, and control information 4, and the terminal receives control information 1 before receiving control information 2, the terminal receives control information 2 before receiving control information 3, and the terminal receives control information 3 before receiving control information 4 as an example: if the first control information is control information 2 in the at least one control information, the second control information is control information 1 in the at least one control information. If the first control information is control information 3 in the at least one control information, the second control information is control information 2 in the at least one control information. If the first control information is control information 4 in the at least one control information, the second control information is control information 3 in the at least one control information.

[0109] As can be seen from the above description of "S301", the network device can send information required for blind detection of at least one control information to the terminal. In case 1, the information required for blind detection of at least one control information is information required for blind detection of the first control information, and the information required for blind detection of the first control information is carried in the second control information. That is, the network device can send the second control information to the terminal.

[0110] Optionally, the implementation process of the network device sending the second control information to the terminal may be: the network device obtains service information. The service information includes the relevant information of the second data and the relevant information of the first data in at least one data that the network device predicts the terminal to request for scheduling transmission. The network device determines the information required for blind detection of the first control information for scheduling the transmission of the first data based on the service information, and configures the second control information for scheduling the transmission of the second data. The network device carries the information required for blind detection of the first control information in the second control information. The network device sends the second control information to the terminal.

[0111] For example, Figure 4 An example diagram of information and / or data transmission between a network device and a terminal provided by an embodiment of the present application is shown. Figure 4As shown, take the information required for blind detection of at least one control information sent by the network device to the terminal as the information required for blind detection of the first control information, the second data is downlink data, the first data is uplink data, and the system where the network device and the terminal are located supports time division duplexing (TDD) as an example: the network device transmits the second control information to the terminal based on the downlink (DL) in downlink time slot 1 (denoted as D1). The second control information includes the information required by the terminal for scheduling the transmission of the second data and the information required for blind detection of the first control information. Accordingly, the terminal obtains the second control information by blind detection. The network device sends the second data to the terminal based on PDSCH in downlink time slot 2 (denoted as D2). Accordingly, the terminal receives the second data on D2 based on the second control information.

[0112] The network device transmits first control information to the terminal based on the uplink (UL) in a special time slot 1 (denoted as S1). The first control information includes information required by the terminal for scheduling the transmission of the first data. Accordingly, the terminal obtains the first control information by blind detection based on the information required for blind detection of the first control information in the second control information, and then transmits the first data to the network device based on the physical uplink shared channel (PUSCH) in the uplink time slot 1 (uplink time slot) (denoted as U1) based on the first control information.

[0113] As a possible implementation method, taking the example that the information required for blind detection of the first control information includes the aggregation level 8 of the downlink control channel carried by the first control information, the information required for blind detection of the first control information in the second control information may be the time domain position of the downlink control channel carried by the first control information, and the aggregation level 8 of the downlink control channel carried by the first control information.

[0114] Case 2: The information required for blind detection of at least one control information is the information required for blind detection of N control information, where N is a positive integer, N is greater than 1, and N is less than or equal to the number of control information predicted to be sent by the network device within a preset time period.

[0115] Optionally, the above-mentioned preset time period can be represented by t, and this application does not impose any limitation on this.

[0116] As can be seen from the above description of "S301", the network device can send information required for blind detection of at least one control information to the terminal. In case 2, the information required for blind detection of at least one control information is information required for blind detection of N control information. That is, the network device can send information required for blind detection of N control information to the terminal.

[0117] As a possible implementation, when N is less than the number of control information predicted to be sent by the network device within a preset time period, the implementation process of the above network device sending the information required for blind detection of N control information to the terminal can be: the network device obtains service information, wherein the service information includes relevant information of at least one data predicted by the network device to be scheduled for transmission by the terminal. The network device predicts the number of control information to be sent to the terminal within a preset time period based on the service information, and determines the information required for blind detection of N control information among the control information sent within the preset time period. The network device sends the information required for blind detection of N control information to the terminal.

[0118] As some possible implementation methods, the network device can determine the value of the preset time period based on the total amount of data included in the business information, or determine the value of the preset time period based on the partial amount of data included in the business information, or determine the value of the preset time period based on the arrival time of the data in the business information. This application does not impose any restrictions on this.

[0119] Exemplarily, the above-mentioned preset time period can be 30 minutes. Of course, the above is only an exemplary description of the preset time period, and the preset time period recorded in the embodiment of the present application can also be other time periods. The preset time period can be set according to the specific configuration of the network device, and the embodiment of the present application does not impose any limitation on this.

[0120] In some possible implementations, the network device may directly send the value of the preset time period to the terminal, the network device may also record the value of the preset time period in the semi-static configuration of the radio resource control (RRC) parameters, and the network device may also record the value of the preset time period in the information required for blind detection of at least one control information.

[0121] Further, optionally, in the case where the network device records the value of the preset time period in the semi-static configuration of the RRC parameter, the terminal can obtain the value of the preset time period by reading the semi-static configuration of the RRC parameter. Or in the case where the network device records the value of the preset time period in the information required for blind detection of at least one control information, the terminal can obtain the value of the preset time period after obtaining the information required for blind detection of at least one control information.

[0122] For example, Figure 5FIG. 2 shows another example diagram of information and / or data transmission between a network device and a terminal provided by an embodiment of the present application. Figure 5 As shown, the system where the network device and the terminal are located supports TDD, and N control information in the control information sent in the preset time period are two control information, the two control information include a control information 1 and a control information 2, and the control information 1 is the control information corresponding to the downlink data, and the control information 2 is the control information corresponding to the uplink data. For example: the network device sends the information required for blind detection of control information 1 and the information required for blind detection of control information 2 to the terminal in downlink time slot 3 (denoted as D3). Accordingly, the terminal obtains the information required for blind detection of control information 1 and the information required for blind detection of control information 2 by blind detection. The network device transmits control information 1 to the terminal in downlink time slot 4 (denoted as D4). Among them, control information 1 includes information required by the terminal for scheduling transmission of downlink data. Accordingly, the terminal obtains control information 1 by blind detection based on the information required for blind detection of control information 1. The network device sends downlink data to the terminal based on PDSCH in downlink time slot 5 (denoted as D5). Accordingly, the terminal receives downlink data on D5 based on control information 1.

[0123] The network device transmits control information 2 to the terminal in special time slot 2 (denoted as S2). Accordingly, the terminal obtains control information 2 based on blind detection of information required for blind detection of control information 2. Then, the terminal sends uplink data to the network device based on PUSCH in uplink time slot 2 (denoted as U2) based on control information 2.

[0124] Optionally, taking the aggregation level of the downlink control channel carried by the above control information 1 and the aggregation level of the downlink control channel carried by the control information 2 as 16, the information required for blind detection of control information 1 may include the frequency domain position and aggregation level 16 of the downlink control channel carried by control information 1. The information required for blind detection of control information 2 may include the frequency domain position and aggregation level 16 of the downlink control channel carried by control information 2.

[0125] As another possible implementation, when N is equal to the number of control information predicted to be sent by the network device within a preset time period, the implementation process of the network device sending the information required for blind detection of N control information to the terminal can also be: the network device obtains service information. The service information includes relevant information that the network device predicts that the terminal requests scheduling and transmitting at least one data. The network device predicts that N control information will be sent to the terminal within a preset time period based on the service information, and determines the information required for blind detection of N control information. The network device sends the information required for blind detection of N control information to the terminal.

[0126] Optionally, take N control information as two control information, and the two control information include a control information 3 for scheduling the transmission of downlink data, and a control information 4 for scheduling the transmission of uplink data as an example: if the aggregation level of the downlink control channel carried by control information 3 is 8, and the aggregation level of the downlink control channel carried by control information 4 is 16, then the information required for blind detection of the two control information may include the aggregation level 8 of the downlink control channel carried by control information 3, and the aggregation level 16 of the downlink control channel carried by control information 4.

[0127] In addition, optionally, the network device may determine the amount of information required for blind detection of control information sent to the terminal based on the predicted number of times the terminal schedules transmission of data. Taking the case where the network device predicts that the number of times the terminal requests to schedule transmission of data is M as an example, the network device determines the information required for blind detection of M control information corresponding to M data, and sends the information required for blind detection of M control information to the terminal. Wherein, M is a positive integer.

[0128] It is understandable that the above-mentioned blind detection method can be implemented by a blind detection device. In order to realize the above-mentioned functions, the blind detection device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the modules and algorithm steps of each example described in the embodiments disclosed herein, the embodiments disclosed in the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the embodiments disclosed in this application.

[0129] The embodiments disclosed in the present application can divide the functional modules of the blind detection device generated by the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments disclosed in the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation.

[0130] Figure 6 A schematic diagram of the structure of a blind detection device provided by an embodiment of the present invention. Figure 6 As shown, the blind detection device 60 can be used to perform Figure 3 The blind detection method shown. The blind detection device 60 includes: a communication unit 601 and a processing unit 602.

[0131] A communication unit 601 is configured to receive information required for blind detection of at least one control information from a network device, and at least one control information, where the control information is used to indicate information required for a terminal to receive downlink data from a network device, or the control information is used to indicate information required for a terminal to send uplink data to a network device;

[0132] The processing unit 602 obtains at least one control information by blind detection based on the information required for blind detection of at least one control information.

[0133] In one possible implementation, the information required for blind detection of any one of at least one control information includes at least one of the following: the format of any one of the control information, the amount of information of any one of the control information, the time domain resources of any one of the control information, the frequency domain resources of any one of the control information, or the aggregation level of the downlink control channel corresponding to any one of the control information.

[0134] In one possible implementation, when the information required for blind detection of at least one control information is the information required for blind detection of the first control information, the information required for blind detection of the first control information is carried in the second control information, wherein the first control information is any one of the at least one control information, the difference between the time of receiving the second control information and the time of receiving the first control information is the smallest, and the second control information is the control information received before receiving the first control information.

[0135] In one possible implementation, the information required to blindly detect at least one control information is the information required to blindly detect N control information, where N is a positive integer, N is greater than 1, and N is less than or equal to the number of control information predicted to be sent by the network device within a preset time period.

[0136] In a possible implementation manner, the at least one data corresponding to the at least one control information includes at least one data predicted to be requested by the terminal for scheduling transmission.

[0137] Through the description of the above implementation methods, technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0138] The present disclosure also provides a computer-readable storage medium having instructions stored thereon. When the instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the blind detection method provided by the above-mentioned embodiment of the present disclosure.

[0139] The embodiments of the present disclosure also provide a computer program product containing instructions, which, when executed on an electronic device, enables the electronic device to execute the blind detection method provided by the embodiments of the present disclosure.

[0140] Among them, the computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a register, a hard disk, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above, or any other form of computer-readable storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an application-specific integrated circuit (ASIC). In the embodiments of the present application, a computer-readable storage medium may be any tangible medium that contains or stores a program, which may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0141] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A blind detection method, characterized in that: The method comprises: Receiving information required for blind detection of at least one control information from a network device, and the at least one control information, wherein the control information is used to instruct a terminal to receive information required for downlink data from the network device, or the control information is used to instruct a terminal to send uplink data to the network device; Based on the information required for blind detection of the at least one control information, the at least one control information is obtained by blind detection.

2. The method according to claim 1, characterized in that The information required for blind detection of any one of the at least one control information includes at least one of the following: the format of any one of the control information, the amount of information of any one of the control information, the time domain resources of any one of the control information, the frequency domain resources of any one of the control information, or the aggregation level of the downlink control channel corresponding to any one of the control information.

3. The method according to claim 1 or 2, characterized in that: In a case where the information required for blind detection of at least one control information is the information required for blind detection of the first control information, the information required for blind detection of the first control information is carried in the second control information, wherein the first control information is any one of the at least one control information, the difference between the time of receiving the second control information and the time of receiving the first control information is the smallest, and the second control information is the control information received before receiving the first control information.

4. The method according to claim 1 or 2, characterized in that: The information required for blind detection of at least one control information is the information required for blind detection of N control information, where N is a positive integer, N is greater than 1, and N is less than or equal to the number of control information predicted to be sent by the network device within a preset time period.

5. The method according to claim 1 or 2, characterized in that: The at least one data corresponding to the at least one control information includes at least one data predicted to be requested by the terminal to be scheduled for transmission.

6. A blind detection device, characterized in that: The blind detection device comprises: a communication unit and a processing unit; The communication unit is used to receive information required for blind detection of at least one control information from a network device, and the at least one control information, wherein the control information is used to instruct a terminal to receive information required for downlink data from the network device, or the control information is used to instruct a terminal to send uplink data to the network device; The processing unit is used to obtain the at least one control information by blind detection based on information required for blind detection of the at least one control information.

7. The device according to claim 6, characterized in that The information required for blind detection of any one of the at least one control information includes at least one of the following: the format of any one of the control information, the amount of information of any one of the control information, the time domain resources of any one of the control information, the frequency domain resources of any one of the control information, or the aggregation level of the downlink control channel corresponding to any one of the control information.

8. A blind detection device, characterized in that: include: A processor and a communication interface; the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the blind detection method as described in any one of claims 1-5.

9. A computer program product comprising instructions, characterized in that When the instructions are executed by a computer, the computer is caused to perform the blind detection method according to any one of claims 1 to 5.

10. A computer-readable storage medium, wherein instructions are stored in the computer-readable storage medium, characterized in that: When a computer executes the instruction, the computer executes the blind detection method described in any one of claims 1 to 5.

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