Physical downlink control channel blind detection method and device, electronic equipment and storage medium

Abstract

Embodiments of the present application provide a physical downlink control channel blind detection method and device, electronic equipment and storage medium. The method comprises: obtaining a channel quality threshold, an information collection period, a channel standard proportion threshold and channel quality indicator information of a plurality of terminals, analyzing the number of threshold-exceeding channel quality indicator information in the information collection period, calculating the threshold-exceeding proportion and comparing it with the standard proportion threshold to obtain an adaptation determination result, generating control resource set configuration information carrying a frequency domain priority or time domain priority mapping mode based on the result, and controlling the terminal to perform physical downlink control channel blind detection according to the configuration information. The method is used to achieve differentiated mapping configuration according to terminal channel quality, reduce invalid detection actions of the terminal, and reduce resource consumption.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular to a method, apparatus, electronic device, and storage medium for blind detection of physical downlink control channels. Background Technology

[0002] The physical downlink control channel (PLC), as the core channel for transmitting control signaling between terminals and base stations, directly impacts the scheduling performance and user experience of the entire communication system due to the reliability and efficiency of its data transmission. In existing technologies, during blind detection of the PLC, the base station configures a unified control resource set mapping method for all terminals within its coverage area. This mapping method typically uses a time-domain priority mode. After receiving the control resource set configuration information from the base station, the terminal needs to traverse and detect all time-domain symbols covered by the control resource set, sequentially demodulating and decoding the candidate time-frequency resources within each time-domain symbol until the detection operation of all time-domain symbols is completed, ultimately obtaining valid control signaling. During this process, the terminal continuously consumes its own computing and power resources, while the base station continuously receives channel quality indication information reported by each terminal and aggregates and processes the channel quality data from all terminals.

[0003] Existing technologies use a uniform and fixed mapping method to perform blind detection of the physical downlink control channel, which cannot be differentiated according to the channel quality status of different terminals. As a result, terminals with good channel quality still need to perform traversal detection of all time-domain symbols, resulting in the ineffective consumption of terminal computing power and power resources. Summary of the Invention

[0004] This application provides a method, apparatus, electronic device, and storage medium for blind detection of the physical downlink control channel, which can reduce the ineffective consumption of terminal computing power and power resources and improve the efficiency of blind detection of the physical downlink control channel.

[0005] In a first aspect, embodiments of this application provide a blind detection method for a physical downlink control channel, including:

[0006] Acquire channel quality thresholds, information collection period, channel compliance rate thresholds, and channel quality indication information from multiple terminals;

[0007] Within the information acquisition period, the number of channel quality indication information exceeding the channel quality threshold for each terminal is obtained.

[0008] The number of threshold exceedances is compared with the total number of channel quality indication information to obtain the threshold exceedance ratio corresponding to the terminal.

[0009] The channel adaptation determination result is obtained by comparing the over-threshold ratio with the channel compliance ratio threshold.

[0010] Based on the channel adaptation determination result, control resource set configuration information carrying a mapping method is generated, wherein the mapping method is frequency domain priority or time domain priority.

[0011] Based on the control resource set configuration information, the corresponding terminal is controlled to perform blind detection of the physical downlink control channel.

[0012] In one possible implementation, the proportion exceeding the threshold corresponding to each terminal is compared with the channel compliance proportion threshold to obtain a channel adaptation determination result, including:

[0013] If the over-threshold ratio corresponding to the terminal is greater than the channel compliance ratio threshold, it is determined that the terminal is adapted to the frequency domain priority mapping method, and a channel adaptation determination result of successful adaptation is generated.

[0014] If the over-threshold ratio corresponding to the terminal is less than or equal to the channel compliance ratio threshold, it is determined that the terminal is not compatible with the frequency domain priority mapping method, and a channel adaptation determination result of failure to adapt is generated.

[0015] In one possible implementation, after generating the channel adaptation determination result for which adaptation failed, the method further includes:

[0016] Generate control resource set configuration information carrying a time-domain priority mapping method for the corresponding terminal, and control the terminal to perform physical downlink control channel blind detection on all time-domain symbols of the control resource set configuration based on the configuration information;

[0017] Based on a preset period, the corresponding terminal suspends the reporting of the channel quality indication information, where the preset period is an integer multiple of the information collection period.

[0018] In one possible implementation, generating the control resource set configuration information carrying the mapping method includes:

[0019] When the mapping method is frequency domain priority, the frequency domain association information of the preset resource element group and the control channel element is obtained. The frequency domain association information is the association information of mapping the resource element group to the control channel element in the order of frequency domain resources.

[0020] The frequency-domain priority mapping method is generated based on the frequency domain association information. The mapping method is a mapping method that arranges the resource element groups corresponding to the control channel elements in a continuous manner without intervals in the frequency domain.

[0021] The frequency-domain-first mapping method is embedded into the control resource set configuration information;

[0022] When the mapping method is time-domain priority, the time-domain association information of the preset resource element group and the control channel element is obtained. The time-domain association information is the association information of mapping the resource element group to the control channel element according to the time-domain resource order.

[0023] The time-domain priority mapping method is generated based on the time-domain correlation information. The mapping method is a mapping method that distributes the resource element groups corresponding to the control channel elements in multiple symbols in the time domain.

[0024] The time-domain-first mapping method is embedded into the control resource set configuration information.

[0025] In one possible implementation, the control resource set configuration information based on the frequency-domain-priority mapping method controls the corresponding terminal to perform blind detection of the physical downlink control channel, including:

[0026] The corresponding terminal is controlled to parse the control resource set configuration information and extract the resource allocation parameters corresponding to the frequency domain priority mapping method;

[0027] Based on the resource allocation parameters, candidate time-frequency resources for the physical downlink control channel within a single time-domain symbol in the control resource set are determined;

[0028] The candidate time-frequency resources are subjected to signal detection and decoding to obtain blind detection results;

[0029] After obtaining the blind detection results, monitoring of the remaining time-domain symbols of the control resource set is stopped.

[0030] In one possible implementation, signal detection and decoding are performed on the candidate time-frequency resources to obtain blind detection results, including:

[0031] Get the preset aggregation level;

[0032] Based on the aggregation level, the candidate time-frequency resources are grouped into multiple resource groups according to the blind detection granularity;

[0033] The candidate time-frequency resources within the resource group are demodulated to filter out valid signals;

[0034] The valid signal is decoded to obtain the blind detection result.

[0035] Secondly, embodiments of this application provide a physical downlink control channel blind detection device, comprising:

[0036] The acquisition module is used to acquire channel quality thresholds, information acquisition period, channel compliance rate thresholds, and channel quality indication information from multiple terminals.

[0037] The filtering module is used to obtain the number of channel quality indication information exceeding the channel quality threshold for each terminal within the information collection period;

[0038] The comparison module is used to compare the number of threshold exceedances with the total number of channel quality indication information to obtain the threshold exceedance ratio corresponding to the terminal.

[0039] The determination module is used to compare the over-threshold ratio with the channel compliance ratio threshold to obtain the channel adaptation determination result.

[0040] The generation module is used to generate control resource set configuration information carrying a mapping method based on the channel adaptation determination result, wherein the mapping method is frequency domain priority or time domain priority.

[0041] The execution module is used to control the corresponding terminal to perform blind detection of the physical downlink control channel according to the configuration information of the control resource set.

[0042] In one possible implementation, the determination module is specifically used for:

[0043] If the over-threshold ratio corresponding to the terminal is greater than the channel compliance ratio threshold, it is determined that the terminal is adapted to the frequency domain priority mapping method, and a channel adaptation determination result of successful adaptation is generated.

[0044] If the over-threshold ratio corresponding to the terminal is less than or equal to the channel compliance ratio threshold, it is determined that the terminal is not compatible with the frequency domain priority mapping method, and a channel adaptation determination result of failure to adapt is generated.

[0045] In one possible implementation, the determination module is further configured to:

[0046] Generate control resource set configuration information carrying a time-domain priority mapping method for the corresponding terminal, and control the terminal to perform physical downlink control channel blind detection on all time-domain symbols of the control resource set configuration based on the configuration information;

[0047] Based on a preset period, the corresponding terminal suspends the reporting of the channel quality indication information, where the preset period is an integer multiple of the information collection period.

[0048] In one possible implementation, the generation module is specifically used for:

[0049] When the mapping method is frequency domain priority, the frequency domain association information of the preset resource element group and the control channel element is obtained. The frequency domain association information is the association information of mapping the resource element group to the control channel element in the order of frequency domain resources.

[0050] The frequency-domain priority mapping method is generated based on the frequency domain association information. The mapping method is a mapping method that arranges the resource element groups corresponding to the control channel elements in a continuous manner without intervals in the frequency domain.

[0051] The frequency-domain-first mapping method is embedded into the control resource set configuration information;

[0052] When the mapping method is time-domain priority, the time-domain association information of the preset resource element group and the control channel element is obtained. The time-domain association information is the association information of mapping the resource element group to the control channel element according to the time-domain resource order.

[0053] The time-domain priority mapping method is generated based on the time-domain correlation information. The mapping method is a mapping method that distributes the resource element groups corresponding to the control channel elements in multiple symbols in the time domain.

[0054] The time-domain-first mapping method is embedded into the control resource set configuration information.

[0055] In one possible implementation, the execution module is specifically used for:

[0056] The corresponding terminal is controlled to parse the control resource set configuration information and extract the resource allocation parameters corresponding to the frequency domain priority mapping method;

[0057] Based on the resource allocation parameters, candidate time-frequency resources for the physical downlink control channel within a single time-domain symbol in the control resource set are determined;

[0058] The candidate time-frequency resources are subjected to signal detection and decoding to obtain blind detection results;

[0059] After obtaining the blind detection results, monitoring of the remaining time-domain symbols of the control resource set is stopped.

[0060] In one possible implementation, the execution module is further configured to:

[0061] Get the preset aggregation level;

[0062] Based on the aggregation level, the candidate time-frequency resources are grouped into multiple resource groups according to the blind detection granularity;

[0063] The candidate time-frequency resources within the resource group are demodulated to filter out valid signals;

[0064] The valid signal is decoded to obtain the blind detection result.

[0065] Thirdly, embodiments of this application provide an electronic device, including: a memory and a processor;

[0066] The memory stores computer-executed instructions;

[0067] The processor executes computer execution instructions stored in the memory, causing the processor to perform the first aspect and / or various possible implementations of the first aspect as described above.

[0068] Fourthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the first aspect and / or various possible implementations of the first aspect.

[0069] Fifthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the first aspect and / or various possible implementations of the first aspect.

[0070] In a sixth aspect, embodiments of this application provide a chip, the chip including at least one processor, the processor being configured to execute program instructions to perform the first aspect and / or various possible implementations of the first aspect as described above.

[0071] The physical downlink control channel blind detection method, apparatus, electronic device, and storage medium provided in this application acquire channel quality thresholds, information acquisition periods, channel compliance percentage thresholds, and channel quality indication information from multiple terminals. They then summarize the number of channel quality indication information exceeding the threshold within the information acquisition period, calculate the over-threshold ratio, and compare it with the compliance percentage threshold to obtain an adaptation judgment result. Based on the judgment result, they generate control resource set configuration information carrying frequency-domain priority or time-domain priority mapping methods. According to the configuration information, they control the terminal to perform physical downlink control channel blind detection, achieving differentiated mapping configuration for terminals with different channel qualities. This avoids invalid detection behavior caused by a uniform mapping method, thereby improving the efficiency of physical downlink control channel blind detection and reducing terminal resource consumption. Attached Figure Description

[0072] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0073] Figure 1 This is a schematic diagram illustrating an application scenario of the physical downlink control channel blind detection method provided in the embodiments of this application.

[0074] Figure 2 A flowchart illustrating the blind detection method for the physical downlink control channel provided in this application embodiment;

[0075] Figure 3 A schematic diagram of the physical downlink control channel blind detection device provided in the embodiments of this application;

[0076] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0077] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0078] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0079] First, let me explain the terms used in this application:

[0080] Physical downlink control channel: refers to the dedicated channel in a mobile communication system through which the base station transmits downlink control signaling to the terminal. It is used to carry core control content such as scheduling instructions and resource allocation information, and is the key carrier for signaling interaction between the terminal and the base station.

[0081] Blind detection refers to the process by which a terminal, without knowing the specific time-frequency location and modulation and coding scheme of the physical downlink control channel, traverses and detects candidate resources within a preset search space in order to obtain effective control signaling.

[0082] Channel quality threshold: refers to the criterion used to determine the quality of terminal channel transmission. When the channel quality indication information reported by the terminal is higher than this threshold, the channel quality is determined to be in a good state.

[0083] Information collection period: refers to the time interval during which the base station summarizes terminal channel quality indication information, and is the time reference for calculating the proportion of terminal channel quality compliance.

[0084] Channel compliance rate threshold: refers to the proportion of terminals that are adapted to the frequency domain priority mapping method, and is used to measure the probability that the channel quality of the terminal meets the standard within the information collection period.

[0085] Channel quality indication information refers to quantitative information reflecting the current channel transmission status reported by the terminal to the base station based on parameters such as the strength and signal-to-noise ratio of the received signal.

[0086] Number of entries exceeding the threshold: refers to the number of channel quality indication information entries reported by the terminal that exceed the channel quality threshold within the information collection period.

[0087] The over-threshold ratio refers to the ratio of the number of over-threshold items to the total number of channel quality indication information items within the information collection period. It is used to intuitively reflect the probability that the terminal channel quality meets the standard.

[0088] Mapping method: refers to the association rule between resource element groups and control channel elements within the control resource set. In this application, it is specifically divided into two types: frequency domain priority mapping method and time domain priority mapping method.

[0089] Frequency domain priority mapping method: refers to the mapping rule that maps resource element groups to control channel elements according to the frequency domain resource order, and concentrates the resource element groups corresponding to the control channel elements into a single orthogonal frequency division multiplexing symbol.

[0090] Time-domain priority mapping method: refers to the mapping rule that maps resource element groups to control channel elements according to the time-domain resource order, and disperses the resource element groups corresponding to the control channel elements across multiple orthogonal frequency division multiplexing symbols.

[0091] Control resource set configuration information refers to the configuration instructions issued by the base station to the terminal, which include the mapping method and resource allocation parameters. It is the core basis for the terminal to perform blind detection of the physical downlink control channel.

[0092] Resource Element Group (REG): refers to the basic unit for allocating control channel resources. In the fifth-generation mobile communication new radio technology, it corresponds to one orthogonal frequency division multiplexing symbol in the time domain and one physical resource block in the frequency domain.

[0093] Control Channel Element (CCE): refers to the basic scheduling unit for the allocation of physical downlink control channel resources. It is composed of multiple resource element groups and is the basic unit for terminal blind detection.

[0094] Aggregation level: refers to the key parameter of blind detection of the physical downlink control channel, which determines the number of resource element groups contained in a single control channel element, and is used to balance blind detection efficiency and signaling transmission reliability.

[0095] Candidate time-frequency resources: refers to the range of time-frequency resources that the terminal determines based on the control resource set configuration information, and for which signal detection and decoding operations need to be performed.

[0096] Preset period: refers to the time interval during which terminals that fail to adapt to the control system will suspend reporting channel quality indication information. This period is an integer multiple of the information collection period.

[0097] In the existing technology, blind detection of the physical downlink control channel is performed by configuring a unified control resource set mapping method for all terminals. However, this method cannot adjust the detection strategy according to the differences in terminal channel quality, resulting in the ineffective consumption of terminal resources.

[0098] The physical downlink control channel blind detection method provided in this application obtains channel quality threshold, information acquisition period, channel compliance percentage threshold and channel quality indication information of multiple terminals, obtains the number of channel quality indication information exceeding the threshold, calculates the proportion of exceeding the threshold and compares it with the compliance percentage threshold to obtain the adaptation judgment result, generates control resource set configuration information carrying frequency domain priority or time domain priority mapping mode based on the result, and controls the terminal to perform physical downlink control channel blind detection according to the configuration information. This solves the technical problem of invalid consumption of terminal resources caused by the unified mapping mode.

[0099] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0100] Figure 1 This is a schematic diagram illustrating an application scenario of the physical downlink control channel blind detection method provided in the embodiments of this application, such as... Figure 1 As shown, it includes: terminal 101 and base station 102. The figure illustrates one example of terminal 101.

[0101] Terminal 101 is used to report channel quality indication information to the base station, receive control resource set configuration information carrying the mapping method from base station 102, and perform physical downlink control channel blind detection operation according to the configuration information. Base station 102 is used to receive the channel quality indication information reported by terminal 101, and perform the following operations: obtaining channel quality threshold, information collection period, channel compliance ratio threshold, obtaining the number of thresholds exceeded, calculating the threshold ratio, and generating adaptation judgment results; generating control resource set configuration information carrying frequency domain priority or time domain priority mapping method.

[0102] Figure 2 This is a flowchart illustrating the blind detection method for the physical downlink control channel provided in this application embodiment. The execution entity in this embodiment can be... Figure 1 The base station 102 in the illustrated embodiment can also be other related devices, and this embodiment is not particularly limited. This method can be applied to terminal devices, base stations, or chips and chip modules in terminal devices / base stations. Through differentiated mapping configuration and precise blind detection process design, it improves the blind detection efficiency of the physical downlink control channel and reduces terminal resource consumption.

[0103] like Figure 2 As shown, the physical downlink control channel blind detection method includes the following steps:

[0104] Step S201: Obtain channel quality threshold, information collection period, channel compliance rate threshold, and channel quality indication information of multiple terminals.

[0105] Specifically, the channel quality threshold is used to determine the terminal's channel quality, the information acquisition period is used to determine the total duration of channel quality data, the channel compliance rate threshold is used to determine whether the terminal is compatible with a specific mapping method, and the channel quality indication information reflects the terminal's current channel transmission status. By acquiring the channel quality threshold, information acquisition period, channel compliance rate threshold, and channel quality indication information from multiple terminals, the accuracy and reliability of subsequent evaluation results are ensured. This achieves centralized acquisition of core parameters and terminal channel status information, avoiding evaluation deviations caused by missing data or unreasonable parameters, and providing a data basis for differentiated mapping configuration.

[0106] Step S202: During the information acquisition period, obtain the number of channel quality indication information exceeding the channel quality threshold for each terminal.

[0107] Specifically, based on a preset information collection cycle, the channel quality indication information reported by each terminal is verified one by one. Information entries with values ​​exceeding the channel quality threshold are filtered out, and the number is summarized to quantify the frequency of terminal channel quality compliance. By summarizing the number of threshold-exceeding entries, the terminal channel quality status is transformed into a quantifiable indicator, enabling quantitative analysis of terminal channel quality compliance status. This accurately captures the advantageous characteristics of terminal channel quality and provides intuitive data support for distinguishing channel quality differences between different terminals.

[0108] Step S203: Compare the number of threshold exceedances with the total number of channel quality indication information to obtain the threshold exceedance ratio corresponding to the terminal.

[0109] Specifically, the over-threshold ratio is calculated by dividing the number of over-threshold entries by the total number of channel quality indication messages within the information collection period. This ratio directly reflects the probability that the terminal's channel quality meets the standards within the collection period; a higher ratio indicates more stable channel quality. By converting the over-threshold entries into a standardized ratio, the impact of differences in the number of messages reported by different terminals is eliminated, enabling horizontal comparison of channel quality status across different terminals. This generates standardized terminal channel quality analysis indicators, improves the accuracy of channel quality comparisons between different terminals, and ensures the fairness and rationality of subsequent adaptation determination results.

[0110] Step S204: Compare the proportion exceeding the threshold with the channel compliance rate threshold to obtain the channel adaptation determination result.

[0111] Specifically, based on the channel compliance rate threshold, the proportion of each terminal exceeding the threshold is compared with it. If the proportion exceeding the threshold is higher than the threshold, the terminal is adapted to the frequency domain priority mapping method; if the proportion exceeding the threshold is lower than or equal to the threshold, the terminal is adapted to the time domain priority mapping method. By clarifying the adaptation relationship between the terminal and the mapping method, a basis is provided for the generation of subsequent control resource set configuration information, ensuring that terminals with good channel quality can match the optimal mapping method.

[0112] Step S205: Generate control resource set configuration information carrying the mapping method based on the channel adaptation determination result. The mapping method is either frequency domain priority or time domain priority.

[0113] Specifically, based on the channel adaptation determination results, for terminals adapted to the frequency-first mapping method, control resource set configuration information carrying the frequency-first mapping method is generated. This mapping method concentrates the resource element group (REG) corresponding to the control channel element (CCE) into a single time domain symbol. For terminals adapted to the time-first mapping method, control resource set configuration information carrying the time-first mapping method is generated. This mapping method disperses the resource element groups corresponding to the control channel element across multiple time domain symbols. Finally, the mapping method is embedded in the control resource set configuration information. By converting the adaptation determination results into specific configuration instructions, the mapping rules during terminal blind detection are clarified, enabling differentiated configuration of mapping methods. This allows terminals with different channel qualities to be matched with the optimal mapping method, providing configuration support for improving blind detection efficiency and reducing resource consumption.

[0114] Step S206: Control the corresponding terminal to perform blind detection of the physical downlink control channel according to the control resource set configuration information.

[0115] Specifically, the control terminal parses the control resource set configuration information, extracts the mapping method and corresponding resource allocation parameters, and determines the time-frequency resource range for blind detection based on the mapping method. The frequency-domain priority mapping method corresponds to candidate time-frequency resources within a single time-domain symbol, while the time-domain priority mapping method corresponds to candidate time-frequency resources within multiple time-domain symbols. Then, the corresponding blind detection operation is executed. By implementing the configuration information into the terminal's blind detection actions, a closed-loop execution of the differentiated blind detection process is achieved, ensuring the optimization effect of the mapping method is realized. This allows the terminal to perform blind detection according to the adapted mapping method, avoiding invalid detection actions, improving blind detection efficiency, and reducing the consumption of terminal computing power and power resources.

[0116] The physical downlink control channel blind detection method provided in this invention obtains core parameters and terminal channel quality indication information, quantifies the terminal channel quality compliance status and completes the adaptation determination, generates control resource set configuration information with differentiated mapping mode and controls the terminal to perform corresponding blind detection, realizes differentiated blind detection optimization based on the terminal channel quality status, effectively reduces invalid detection behavior of the terminal, reduces terminal resource consumption, and improves the efficiency of physical downlink control channel blind detection and the overall scheduling performance of the communication system.

[0117] This embodiment details the process described in the above embodiment of comparing the proportion of each terminal exceeding the threshold with the channel compliance proportion threshold to obtain the channel adaptation determination result. The specific implementation of this process includes the following steps:

[0118] Step a1: If the proportion of terminals exceeding the threshold is greater than the channel compliance rate threshold, determine that the terminal is adapted to the frequency domain priority mapping method and generate the channel adaptation judgment result that has passed the adaptation.

[0119] Specifically, the over-threshold ratio reflects the probability that the channel quality of the terminal meets the standard within the information acquisition period. When the over-threshold ratio is greater than the channel compliance ratio threshold, it indicates that the channel quality of the terminal is in a stable and good state, which can meet the channel condition requirements of the frequency domain priority mapping method. This mapping method can concentrate the resource element group corresponding to the control channel element into a single time domain symbol, which is suitable for the blind detection requirements of such terminals.

[0120] By comparing thresholds, the mapping method corresponding to terminals with good channel quality is identified, providing an accurate basis for subsequent generation of differentiated control resource set configuration information. The matching relationship between terminal channel quality and mapping method is established, enabling accurate screening of terminals with excellent channel quality. This ensures that such terminals can be matched with the optimal mapping method, laying the foundation for reducing invalid terminal detection actions and lowering resource consumption.

[0121] Step a2: If the proportion of the terminal that exceeds the threshold is less than or equal to the channel compliance proportion threshold, it is determined that the terminal is not suitable for the frequency domain priority mapping method, and a channel adaptation determination result of failure to adapt is generated.

[0122] Specifically, when the proportion exceeding the threshold is less than or equal to the channel compliance rate threshold, it indicates that the terminal channel quality stability is insufficient and cannot meet the channel condition requirements of the frequency domain priority mapping method. At this time, the terminal adapts to the time domain priority mapping method. This mapping method disperses the resource element groups corresponding to the control channel elements in multiple time domain symbols, which can adapt to the blind detection requirements of the terminal with insufficient channel quality stability.

[0123] By comparing thresholds to exclude terminals with insufficient channel quality stability from the compatibility of frequency-domain priority mapping methods, the corresponding mapping method type for such terminals is identified, ensuring that all terminals can be matched with a mapping method that suits their own channel conditions. This enables accurate classification and determination of terminals with different channel qualities, avoiding the use of mismatched mapping methods for terminals with unstable channel quality, which would lead to reduced blind detection efficiency and ensure comprehensive coverage of differentiated blind detection configurations.

[0124] This invention compares the terminal exceeding the threshold ratio with the channel compliance ratio threshold in two directions to determine the compatibility and exclusion of the terminal with the frequency domain priority mapping method, generating accurate channel compatibility results. This provides a core basis for differentiated mapping configuration, effectively ensuring that the subsequent blind detection process can match the terminal channel quality status and improving the overall efficiency of blind detection of the physical downlink control channel.

[0125] In one specific implementation, after generating the channel adaptation determination result for which adaptation failed, the method further includes:

[0126] In step a21, the corresponding terminal generates control resource set configuration information carrying a time-domain priority mapping method. Based on the configuration information, the control terminal performs physical downlink control channel blind detection on all time-domain symbols of the control resource set configuration.

[0127] Specifically, the failure to adapt indicates that the terminal's channel quality cannot meet the requirements of the frequency-domain priority mapping method. The time-domain priority mapping method distributes the resource element groups corresponding to the control channel elements across multiple time-domain symbols, adapting to transmission scenarios with unstable channel quality. By generating control resource set configuration information carrying this mapping method, blind detection rules that conform to the terminal's own channel conditions are provided. The terminal performs blind detection by traversing all time-domain symbols based on the configuration information, ensuring effective reception of control signaling. By providing targeted blind detection configurations for terminals that have failed adaptation, the blind detection mapping rules and time-frequency resource ranges for such terminals are clarified, ensuring that the terminal can perform blind detection based on its own channel state. This avoids blind detection failures due to mapping method mismatch, achieving accurate blind detection configuration for terminals that have failed adaptation, ensuring a high success rate for blind detection, and simultaneously aligning with the terminal's channel quality state to avoid signaling loss during blind detection, thus ensuring the stability of the communication link.

[0128] Step a22: Based on a preset period, the corresponding terminal is controlled to suspend the reporting of channel quality indication information. The preset period is an integer multiple of the information acquisition period.

[0129] Specifically, terminals that fail adaptation suffer from insufficient channel quality stability, and their channel status is unlikely to improve significantly in a short period. Continuously reporting channel quality indication information increases terminal power consumption and the data processing pressure on the base station. Setting the preset period to an integer multiple of the information collection period reduces the reporting frequency without affecting subsequent channel quality analysis, thus balancing channel status monitoring and resource consumption. This effectively reduces the frequency of channel quality indication information reporting from terminals that fail adaptation, lowers terminal power and computing power consumption, reduces the data reception, analysis, and processing burden on the base station, optimizes the resource allocation efficiency of the communication system, reduces resource consumption caused by invalid terminal reporting, extends terminal battery life, reduces the resource occupation pressure on the base station, improves the overall operating efficiency of the communication system, and achieves rational resource utilization.

[0130] The preset period is set to an integer multiple of the information collection period. During the stage when the channel quality is stable and the time-domain priority mapping is adapted, the terminal's channel quality indication information reporting can be paused, reducing the terminal's uplink transmission resource consumption and power consumption. The integer multiple period can be synchronized with the base station's channel quality analysis period, ensuring that the information reported by the terminal after the pause period ends can be directly included in the next round of analysis, avoiding the loss of channel status monitoring due to reporting interruption, and achieving a balance between terminal resource consumption and base station channel monitoring accuracy.

[0131] This invention provides a time-domain priority mapping method for terminals that fail to adapt and controls them to perform corresponding blind detection. At the same time, it suspends the reporting of channel quality indication information for a preset period based on an integer multiple of the information collection period. This not only ensures the success rate of blind detection for terminals with unstable channel quality, but also reduces the resource consumption of terminals and base stations, thus optimizing the overall performance of the communication system.

[0132] This embodiment provides a detailed description of the process for generating control resource set configuration information carrying the mapping method in the above embodiments. The specific implementation of this process includes the following steps:

[0133] Step b1: When the mapping method is frequency domain priority, obtain the frequency domain association information of the preset resource element group and the control channel element. The frequency domain association information is the association information of mapping the resource element group to the control channel element in the order of frequency domain resources.

[0134] Specifically, by pre-setting continuous frequency domain resource mapping relationships, the arrangement constraints of resource element groups of the same control channel element in the frequency domain dimension are formed; by defining the core technical boundary of frequency domain priority mapping, the continuity of resource element groups in the frequency domain is ensured, providing a clear frequency domain search interval for terminal blind detection; effectively avoiding invalid searches between discrete frequency domain locations by the terminal, reducing the number of hardware scheduling times for terminal frequency domain search, and improving the initial search efficiency of blind detection.

[0135] Step b2: Generate a frequency-domain priority mapping method based on frequency domain correlation information. The mapping method is a mapping method that arranges the resource element groups corresponding to the control channel elements continuously without intervals in the frequency domain.

[0136] Specifically, all resource element groups corresponding to the same control channel element are configured in a continuous frequency domain interval without gaps, forming a mapping mode with frequency domain continuity as the core feature; the technical form of frequency domain priority mapping is solidified, forming a clear dimensional distinction from time domain priority mapping, while removing the constraint of time domain mandatory limitation in the original description; the terminal only needs to perform blind detection in the continuous frequency domain interval, which greatly reduces the frequency domain search range, reduces computing power consumption, and supports flexible configuration of single or multiple symbols in the time domain to adapt to different channel quality scenarios.

[0137] Step b3: Embed the frequency-domain-first mapping method into the control resource set configuration information.

[0138] Specifically, the control resource set configuration information is the basis for the terminal to perform blind detection. By embedding the generated frequency domain priority mapping method into it, the mapping rules are associated with the time and frequency resources, aggregation level and other configuration information of the control resource set to form a complete blind detection configuration instruction.

[0139] This effectively integrates the frequency-domain priority mapping method with the control resource set configuration information, transforming the mapping strategy into configuration instructions that the terminal can parse. This provides an operational basis for the terminal to receive and execute frequency-domain priority blind detection, completes the configuration implementation of the frequency-domain priority mapping method, ensures that the terminal can accurately parse and execute the corresponding blind detection strategy, and guarantees that the optimization effect of frequency-domain priority mapping is realized.

[0140] Step b4: When the mapping method is time-domain priority, obtain the time-domain association information of the preset resource element group and the control channel element. The time-domain association information is the association information of mapping the resource element group to the control channel element according to the time-domain resource order.

[0141] Specifically, the time-domain association information is the time-domain mapping rule between resource element groups and control channel elements. Mapping according to the time-domain resource order can ensure the uniform distribution of resources across multiple time-domain symbols, adapting to the blind detection requirements of terminals with unstable channel quality.

[0142] By acquiring time-domain correlation information, the underlying resource matching logic of time-domain priority mapping is clarified, providing core data support for the subsequent generation of time-domain priority mapping methods that meet the requirements. This ensures that the mapping rules are suitable for transmission scenarios with unstable channel quality, achieves accurate acquisition of time-domain mapping correlation rules, avoids mismatch between the mapping method and the terminal channel status due to unreasonable correlation information, and provides a prerequisite guarantee for the effective configuration of time-domain priority mapping.

[0143] Step b5: Generate a time-domain priority mapping method based on time-domain correlation information. The mapping method is a mapping method that distributes the resource element groups corresponding to the control channel elements in multiple symbols in the time domain.

[0144] Specifically, the resource element groups corresponding to the same control channel element are distributed across multiple different time-domain symbols, and the diversity of multi-symbol signals is used to combat multipath fading and channel interference; the core characteristics of time-domain priority mapping are clarified, focusing on the resource distribution in the time-domain dimension and eliminating unnecessary frequency-domain descriptions; the distribution of resource element groups across multiple time-domain symbols can improve the signaling detection success rate under adverse channel conditions by combining multi-symbol signals.

[0145] Step b6: Embed the time-first mapping method into the control resource set configuration information.

[0146] Specifically, the generated time-domain priority mapping method is embedded into the control resource set configuration information, integrating the time-domain mapping rules with other configuration information of the control resource set to form a complete blind detection configuration instruction. This ensures that the terminal can parse and execute the corresponding blind detection strategy. This effectively integrates the time-domain priority mapping method with the control resource set configuration information, transforming the mapping strategy into a terminal-parsable configuration instruction. It provides an operational basis for terminals with unstable channel quality to perform blind detection, completing the configuration implementation of the time-domain priority mapping method. This ensures that the terminal can accurately parse and execute the corresponding blind detection strategy, guaranteeing the adaptability of time-domain priority mapping to terminals with unstable channel quality and improving the blind detection success rate.

[0147] The frequency-domain priority mapping method arranges the resource element groups corresponding to the control channel elements continuously in the frequency domain and can be configured to be concentrated in a single symbol in the time domain. This allows the terminal to search for continuous frequency resources within a single time symbol when performing blind detection. Compared with the traditional time-domain distributed mapping method, this directly reduces the number of time symbols that the terminal needs to detect and reduces the time-domain search range of the terminal's blind detection. The time-domain priority mapping method, by distributing the resource element groups across multiple time symbols, can improve the reliability of signaling detection through multi-symbol diversity reception when the channel quality is poor, and adapt to the transmission requirements under different channel conditions.

[0148] This invention, by acquiring frequency domain and time domain association information respectively, generates two corresponding mapping methods and embeds control resource set configuration information, realizing differentiated configuration of frequency domain priority and time domain priority mapping methods. This not only adapts to the efficient blind detection requirements of terminals with good channel quality, but also ensures the blind detection success rate of terminals with unstable channel quality. It provides core configuration support for differentiated blind detection processes, effectively improving the overall efficiency of blind detection of physical downlink control channels and the stability of communication systems.

[0149] This embodiment describes in detail the process of controlling the corresponding terminal to perform blind detection of the physical downlink control channel based on the control resource set configuration information of the frequency domain priority mapping method. The specific implementation of this process includes the following steps:

[0150] Step c1: Control the corresponding terminal to parse the control resource set configuration information and extract the resource allocation parameters corresponding to the frequency domain priority mapping method.

[0151] Specifically, the control resource set configuration information includes mapping methods, time-frequency resource ranges, aggregation levels, etc. The terminal reads the data in the configuration information through a dedicated signaling parsing module, filters out resource allocation parameters related to the frequency-domain priority mapping method, and these resource allocation parameters serve as the basis for determining the time-frequency resources for blind detection. By extracting effective parameters from the control resource set configuration information, the resource boundaries and execution rules of frequency-domain priority blind detection are clarified, providing accurate data support for the subsequent determination of candidate time-frequency resources. This ensures the orderly conduct of blind detection operations, effectively achieves accurate parsing of configuration information and parameter extraction, avoids invalid data interfering with subsequent blind detection processes, and guarantees the targeting and effectiveness of frequency-domain priority blind detection operations.

[0152] Step c2: Based on the resource allocation parameters, determine the candidate time-frequency resources for the physical downlink control channel within a single time-domain symbol in the control resource set.

[0153] Specifically, the frequency-domain priority mapping method concentrates the resource element groups corresponding to the control channel elements into a single time-domain symbol. Based on the extracted resource allocation parameters, the terminal locks the position of this single time-domain symbol and delineates the candidate time-frequency resource range for the physical downlink control channel within that time-domain symbol, eliminating the need to traverse multiple time-domain symbols. By limiting the blind detection resource range to a single time-domain symbol, the number of resources the terminal needs to detect is significantly reduced, solving the problem of traditional blind detection traversing multiple time-domain symbols. This lays the foundation for improving blind detection efficiency, achieving precise positioning and range reduction of blind detection resources, avoiding invalid searches of irrelevant time-domain symbols, and significantly reducing the computational power consumption of terminal blind detection.

[0154] Step c3 involves performing signal detection and decoding on the candidate time-frequency resources to obtain blind detection results.

[0155] Specifically, for candidate time-frequency resources within a defined single time-domain symbol, the terminal sequentially performs signal demodulation, descrambling, and decoding operations. By verifying whether the decoded data conforms to the format requirements of control signaling, it determines whether valid physical downlink control channel signaling has been acquired, thereby generating the corresponding blind detection result. Through signal detection and decoding of candidate time-frequency resources, valid control signaling is extracted, achieving the core blind detection objective of the physical downlink control channel. This ensures signaling interaction between the terminal and the base station, completes the extraction of valid signaling within the limited candidate time-frequency resource range, ensures the accuracy of the blind detection result, and improves the execution efficiency of blind detection due to the narrowed resource range.

[0156] Step c4: After obtaining the blind detection results, stop monitoring the remaining time-domain symbols of the control resource set.

[0157] Specifically, after obtaining a valid blind detection result, the terminal indicates that it has successfully received the control signaling of the physical downlink control channel. At this point, there is no need to continue monitoring other remaining time-domain symbols in the control resource set. The subsequent blind detection operation is terminated by triggering a monitoring stop command.

[0158] After completing the blind test objective, the monitoring of remaining resources is terminated in a timely manner to avoid the terminal from continuously consuming computing power and electricity resources to perform invalid operations. This achieves closed-loop optimization of the blind test process, reduces the terminal's invalid monitoring time, lowers the terminal's overall resource consumption, extends the terminal's battery life, and improves the overall efficiency of the blind test process.

[0159] This invention achieves efficient blind detection of the physical downlink control channel by controlling the terminal to parse configuration information to extract parameters, determine candidate resources within a single time-domain symbol, perform signal detection decoding, and stop monitoring of the remaining time-domain symbols. This effectively reduces invalid detection actions of the terminal, lowers resource consumption, and improves blind detection efficiency.

[0160] This embodiment provides a detailed description of the process of obtaining blind detection results by signal detection and decoding of candidate time-frequency resources in the above embodiments. The specific implementation of this process includes the following steps:

[0161] Step d1: Obtain the preset aggregation level.

[0162] Specifically, the aggregation level is a precision parameter for blind detection of the physical downlink control channel. It determines the grouping size and blind detection accuracy of candidate time-frequency resources. The preset aggregation level is determined based on channel quality status and system scheduling requirements, balancing blind detection efficiency and signaling reception reliability. By acquiring the preset aggregation level, the terminal clarifies the grouping rules for candidate time-frequency resources, providing a quantitative standard for subsequent resource grouping at the blind detection granularity. This ensures the rationality and orderliness of resource grouping, achieves accurate acquisition of the aggregation level parameter, avoids resource grouping chaos caused by missing parameters, and lays a parameter foundation for efficient blind detection.

[0163] Step d2: Based on the aggregation level, candidate time-frequency resources are grouped into multiple resource groups according to the blind detection granularity.

[0164] Specifically, the corresponding terminal divides candidate time-frequency resources into multiple independent resource groups based on the blind detection granularity corresponding to the aggregation level. Each resource group contains a fixed number of resource element groups. This grouping operation allows the blind detection process to proceed sequentially unit by unit, improving the orderliness and targeting of the detection. By transforming candidate time-frequency resources into standardized resource groups, the terminal reduces the complexity of the blind detection operation, enabling signal detection to be performed in an orderly manner according to groups. This avoids disordered detection of scattered resources, achieves standardized grouping of candidate time-frequency resources, narrows the resource range of a single detection, and improves the efficiency and accuracy of signal detection.

[0165] The aggregation level determines the number of resource element groups corresponding to a single control channel element. By grouping candidate time-frequency resources based on the aggregation level, scattered resource element groups can be divided into standardized detection units. The terminal does not need to detect each resource element group one by one, but performs batch demodulation and filtering operations by group, which greatly reduces the number of blind detections. Standardized grouping can match the terminal's hardware detection computing power, avoid hardware scheduling overhead caused by excessively small resource granularity, and directly improve the execution efficiency of blind detection.

[0166] Step d3 involves demodulating the candidate time-frequency resources within the resource group to filter out valid signals.

[0167] Specifically, by performing signal demodulation on candidate time-frequency resources within each resource group, the received radio frequency signals are converted into baseband signals. Then, through signal feature verification, valid signals matching the physical downlink control channel signaling format are selected, eliminating the influence of noise and interference signals. Through signal demodulation and filtering within resource groups, invalid interference signals are filtered out, retaining valid signals with signaling characteristics. This provides a clean signal source for subsequent decoding operations, accurately selecting valid signals, reducing the impact of interference signals on subsequent decoding, and improving the reliability of blind detection results.

[0168] By demodulating and filtering valid signals for candidate time-frequency resources within a resource group, invalid resource groups containing noise and interference can be filtered out before decoding, avoiding redundant decoding calculations for invalid resources by the terminal and reducing the terminal's computing power consumption. At the same time, accurate filtering of valid signals can improve the success rate of subsequent decoding operations and reduce the probability of decoding failure and blind detection retransmission caused by interference signals, thereby improving blind detection efficiency from two dimensions: reducing invalid calculations and increasing the success rate of single detection.

[0169] Step d4: Decode the valid signal to obtain the blind detection result.

[0170] Specifically, the terminal performs decoding operations on the selected valid signals, restores the control information carried in the signals through decoding algorithms, and then verifies the integrity and correctness of the restored information. If the verification passes, the final blind detection result is generated; if the verification fails, it is determined that there is no valid signaling for the resource group. The valid signals are converted into readable control signaling to complete the blind detection of the physical downlink control channel, realize the accurate decoding of valid signals, generate reliable blind detection results, and ensure smooth control signaling interaction between the terminal and the base station.

[0171] This invention achieves efficient and accurate detection of candidate time-frequency resources by acquiring a preset aggregation level to divide resource groups, demodulating and screening effective signals of candidate time-frequency resources within the resource groups, and decoding them, thereby improving the accuracy and reliability of blind detection of the terminal in the physical downlink control channel.

[0172] Figure 3 This is a schematic diagram of the physical downlink control channel blind detection device provided in an embodiment of this application. Figure 3 As shown, the physical downlink control channel blind detection device 30 includes:

[0173] The acquisition module 301 is used to acquire channel quality threshold, information acquisition period, channel compliance rate threshold and channel quality indication information of multiple terminals;

[0174] The filtering module 302 is used to obtain the number of channel quality indication information exceeding the channel quality threshold for each terminal within the information acquisition period;

[0175] The comparison module 303 is used to compare the number of threshold exceedances with the total number of channel quality indication information to obtain the threshold exceedance ratio corresponding to the terminal.

[0176] The judgment module 304 is used to compare the proportion of exceeding the threshold with the channel compliance proportion threshold to obtain the channel adaptation judgment result.

[0177] The generation module 305 is used to generate control resource set configuration information carrying a mapping method based on the channel adaptation determination result. The mapping method is either frequency domain priority or time domain priority.

[0178] The execution module 306 is used to control the corresponding terminal to perform blind detection of the physical downlink control channel according to the control resource set configuration information.

[0179] In one possible implementation, the determination module 304 is specifically used for:

[0180] If the proportion of the terminal exceeding the threshold is greater than the channel compliance rate threshold, the terminal is determined to be adapted to the frequency domain priority mapping method, and a channel adaptation determination result of successful adaptation is generated.

[0181] If the proportion of the terminal exceeding the threshold is less than or equal to the channel compliance rate threshold, it is determined that the terminal is not suitable for the frequency domain priority mapping method, and a channel adaptation judgment result of failure to adapt is generated.

[0182] In one possible implementation, the determination module 304 is further configured to:

[0183] A control resource set configuration information carrying a time-domain priority mapping method is generated for the corresponding terminal. The control terminal performs blind detection of the physical downlink control channel on all time-domain symbols of the control resource set configuration based on the configuration information.

[0184] Based on a preset period, the terminal suspends the reporting of channel quality indication information. The preset period is an integer multiple of the information acquisition period.

[0185] In one possible implementation, the generation module 305 is specifically used for:

[0186] When the mapping method is frequency domain priority, the frequency domain association information of the preset resource element group and the control channel element is obtained. The frequency domain association information is the association information of mapping the resource element group to the control channel element in the order of frequency domain resources.

[0187] A frequency-domain priority mapping method is generated based on frequency domain correlation information. The mapping method is a mapping method that arranges the resource element groups corresponding to the control channel elements in a continuous manner without intervals in the frequency domain.

[0188] Embed the frequency-domain-first mapping method into the control resource set configuration information;

[0189] When the mapping method is time-domain priority, the time-domain association information of the preset resource element group and the control channel element is obtained. The time-domain association information is the association information of mapping the resource element group to the control channel element according to the time-domain resource order.

[0190] A time-domain-priority mapping method is generated based on time-domain correlation information. The mapping method is a mapping method that distributes the resource element groups corresponding to the control channel elements in multiple symbols in the time domain.

[0191] Embed the time-first mapping method into the control resource set configuration information.

[0192] In one possible implementation, execution module 306 is specifically used for:

[0193] The control terminal parses the control resource set configuration information and extracts the resource allocation parameters corresponding to the frequency domain priority mapping method;

[0194] Candidate time-frequency resources for physical downlink control channels within a single time-domain symbol in the control resource set are determined based on resource allocation parameters;

[0195] Signal detection and decoding are performed on candidate time-frequency resources to obtain blind detection results;

[0196] After obtaining the blind test results, stop monitoring the remaining time-domain symbols of the control resource set.

[0197] In one possible implementation, execution module 306 is further configured to:

[0198] Get the preset aggregation level;

[0199] Candidate time-frequency resources are grouped into multiple resource groups based on the aggregation level and the blind detection granularity.

[0200] Demodulate the candidate time-frequency resources within the resource group to filter out the valid signals;

[0201] The valid signal is decoded to obtain the blind detection result.

[0202] The physical downlink control channel blind detection device provided in this embodiment can be used to perform the above-described physical downlink control channel blind detection method. Its implementation principle and technical effect are similar, and will not be described again in this embodiment.

[0203] Figure 4 A schematic diagram of the hardware structure of the electronic device provided in the embodiments of this application, such as... Figure 4 As shown, the electronic device 40 includes at least one processor 401 and a memory 402. Optionally, the electronic device 40 also includes a communication component 403. The processor 401, memory 402, and communication component 403 are connected via a bus 404.

[0204] In the specific implementation process, at least one processor 401 executes computer execution instructions stored in memory 402, causing at least one processor 401 to perform the above method.

[0205] The specific implementation process of processor 401 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0206] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0207] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0208] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0209] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0210] This application provides a chip, which includes at least one processor for executing program instructions to perform the above-described method.

[0211] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0212] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0213] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0214] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0215] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0216] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0217] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0218] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0219] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A method for blind detection of a physical downlink control channel, characterized in that, include: Acquire channel quality thresholds, information collection period, channel compliance rate thresholds, and channel quality indication information from multiple terminals; Within the information acquisition period, the number of channel quality indication information exceeding the channel quality threshold for each terminal is obtained. The number of threshold exceedances is compared with the total number of channel quality indication information to obtain the threshold exceedance ratio corresponding to the terminal. The channel adaptation determination result is obtained by comparing the over-threshold ratio with the channel compliance ratio threshold. Based on the channel adaptation determination result, control resource set configuration information carrying a mapping method is generated, wherein the mapping method is frequency domain priority or time domain priority. Based on the control resource set configuration information, the corresponding terminal is controlled to perform blind detection of the physical downlink control channel.

2. The method according to claim 1, characterized in that, The channel adaptation determination result is obtained by comparing the proportion of each terminal exceeding the threshold with the channel compliance proportion threshold, including: If the over-threshold ratio corresponding to the terminal is greater than the channel compliance ratio threshold, it is determined that the terminal is adapted to the frequency domain priority mapping method, and a channel adaptation determination result of successful adaptation is generated. If the over-threshold ratio corresponding to the terminal is less than or equal to the channel compliance ratio threshold, it is determined that the terminal is not compatible with the frequency domain priority mapping method, and a channel adaptation determination result of failure to adapt is generated.

3. The method according to claim 2, characterized in that, After generating the channel adaptation determination result for those who failed the adaptation test, the following is also included: Generate control resource set configuration information carrying a time-domain priority mapping method for the corresponding terminal, and control the terminal to perform physical downlink control channel blind detection on all time-domain symbols of the control resource set configuration based on the configuration information; Based on a preset period, the corresponding terminal suspends the reporting of the channel quality indication information, where the preset period is an integer multiple of the information collection period.

4. The method according to claim 1, characterized in that, Generate the configuration information of the control resource set carrying the mapping method, including: When the mapping method is frequency domain priority, the frequency domain association information of the preset resource element group and the control channel element is obtained. The frequency domain association information is the association information of mapping the resource element group to the control channel element in the order of frequency domain resources. The frequency-domain priority mapping method is generated based on the frequency domain association information. The mapping method is a mapping method that arranges the resource element groups corresponding to the control channel elements in a continuous manner without intervals in the frequency domain. The frequency-domain-first mapping method is embedded into the control resource set configuration information; When the mapping method is time-domain priority, the time-domain association information of the preset resource element group and the control channel element is obtained. The time-domain association information is the association information of mapping the resource element group to the control channel element according to the time-domain resource order. The time-domain priority mapping method is generated based on the time-domain correlation information. The mapping method is a mapping method that distributes the resource element groups corresponding to the control channel elements in multiple symbols in the time domain. The time-domain-first mapping method is embedded into the control resource set configuration information.

5. The method according to claim 4, characterized in that, Based on the frequency-domain-first mapping method, the control resource set configuration information controls the corresponding terminal to perform blind detection of the physical downlink control channel, including: The corresponding terminal is controlled to parse the control resource set configuration information and extract the resource allocation parameters corresponding to the frequency domain priority mapping method; Based on the resource allocation parameters, candidate time-frequency resources for the physical downlink control channel within a single time-domain symbol in the control resource set are determined; The candidate time-frequency resources are subjected to signal detection and decoding to obtain blind detection results; After obtaining the blind detection results, monitoring of the remaining time-domain symbols of the control resource set is stopped.

6. The method according to claim 5, characterized in that, The candidate time-frequency resources are subjected to signal detection and decoding to obtain blind detection results, including: Get the preset aggregation level; Based on the aggregation level, the candidate time-frequency resources are grouped into multiple resource groups according to the blind detection granularity; The candidate time-frequency resources within the resource group are demodulated to filter out valid signals; The valid signal is decoded to obtain the blind detection result.

7. A physical downlink control channel blind detection device, characterized in that, include: The acquisition module is used to acquire channel quality thresholds, information acquisition period, channel compliance rate thresholds, and channel quality indication information from multiple terminals. The filtering module is used to obtain the number of channel quality indication information exceeding the channel quality threshold for each terminal within the information collection period; The comparison module is used to compare the number of threshold exceedances with the total number of channel quality indication information to obtain the threshold exceedance ratio corresponding to the terminal. The determination module is used to compare the over-threshold ratio with the channel compliance ratio threshold to obtain the channel adaptation determination result. The generation module is used to generate control resource set configuration information carrying a mapping method based on the channel adaptation determination result, wherein the mapping method is frequency domain priority or time domain priority. The execution module is used to control the corresponding terminal to perform blind detection of the physical downlink control channel according to the configuration information of the control resource set.

8. An electronic device, characterized in that, include: Memory, processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-6.

10. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method as described in any one of claims 1-6.

Images