A control channel monitoring method, apparatus, and processor-readable storage medium

Abstract

This invention provides a control channel monitoring method, apparatus, and processor-readable storage medium. The method includes: a terminal determining target candidate PDCCHs based on a target set, the target set including one of a search space set, an MO set contained in the search space set, and a candidate PDCCH set contained in the search space set; the terminal monitoring the target candidate PDCCHs; wherein the target candidate PDCCHs are detectable units that can be monitored. In embodiments of this invention, the terminal determines detectable target candidate PDCCHs based on granularity such as the set formed by the search space set, the MO set, or the candidate PDCCH set, and monitors the target candidate PDCCHs. This ensures that even in cases including repeated PDCCH transmissions, multiple repeated transmissions of the PDCCH can be detected, thereby guaranteeing the transmission reliability of the PDCCH.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a control channel monitoring method, apparatus, and processor-readable storage medium. Background Technology

[0002] In New Radio (NR), a gNB (base station) can transmit multiple Physical Downlink Control Channels (PDCCHs) within a time slot or span. Each PDCCH can have multiple candidate locations. The terminal detects these candidate PDCCHs using blind detection to obtain the necessary downlink control information. Currently, the number of candidate PDCCHs configured by the gNB within a time slot or span may exceed the terminal's monitoring capability. In this case, the terminal will only monitor candidate PDCCHs within a search space set (SSset) with a smaller index within a time slot or span, and the number of monitorable candidate PDCCHs will not exceed the terminal's monitoring capability.

[0003] After introducing the PDCCH retransmission mode, when the PDCCH uses retransmission, the same Downlink Control Information (DCI) will be transmitted twice in two SS sets. According to the existing candidate PDCCH monitoring method, there may be a situation where one PDCCH retransmission can be detected, while the other PDCCH retransmission cannot be detected, thereby reducing the transmission reliability of PDCCH. Summary of the Invention

[0004] This invention provides a control channel monitoring method, apparatus, and processor-readable storage medium, which solves the problem of low transmission reliability of PDCCH in existing PDCCH monitoring methods.

[0005] An embodiment of the present invention provides a control channel monitoring method, comprising:

[0006] The terminal determines the target candidate PDCCH based on the target set, which includes one of the following: a search space set, a set of monitoring occupancy (MO) events included in the search space set, and a set of candidate downlink control channel PDCCH events included in the search space set.

[0007] The terminal monitors the target candidate PDCCH;

[0008] The target candidate PDCCH is a detection unit that can be monitored.

[0009] Optionally, the search space set includes at least two associated first search space sets within a time unit.

[0010] Optionally, the search space set includes: at least two associated first search space sets within a time unit, and at least one second search space set;

[0011] Wherein, the sum of the first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set and the second number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the second search space set is less than or equal to the first detection threshold of the terminal for candidate PDCCHs.

[0012] or

[0013] The first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set is less than or equal to the second detection threshold of the terminal for candidate PDCCHs; the second number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the second search space set is less than or equal to the third detection threshold of the terminal for candidate PDCCHs.

[0014] Optionally, the method further includes:

[0015] Receive the first instruction message;

[0016] Wherein, the first indication information is used to indicate that: in the first time unit, the terminal performs PDCCH transmission on one of the at least two associated search space sets; or, in the first time unit, the terminal performs PDCCH transmission on two of the at least two associated search space sets.

[0017] Optionally, before determining the target candidate PDCCH based on the target set, the method further includes:

[0018] First information is determined about the MO sets contained in the first search space set. The first information includes: the MOs contained in each MO set and the candidate PDCCHs contained in the MO sets.

[0019] Based on the first information, determine the second information of all MO sets included in the first search space set, the second information including: the number of the MO set or the priority information of the MO set;

[0020] Based on the second information, determine whether each of the MO sets can be monitored;

[0021] The target candidate PDCCH includes candidate PDCCHs in the MO set that can be monitored.

[0022] Optionally, the method for determining the second information includes at least one of the following:

[0023] Determined based on the index of the first search space set;

[0024] Determined according to the time sequence of the MO;

[0025] Determined based on the number of candidate PDCCHs contained in the MO set;

[0026] Determined based on the index number of the MO set.

[0027] Optionally, determining whether each of the MO sets can be monitored based on the second information includes:

[0028] Whether a set of MOs can be monitored is determined based on the number of detection units in each set of MOs and the number of detection units that have been determined to be monitorable.

[0029] Specifically, in accordance with the first order indicated by the second information, it is determined whether each of the MO sets can be monitored.

[0030] Optionally, the detection unit includes one of the following:

[0031] Candidate PDCCH;

[0032] Candidate PDCCH pairs;

[0033] Blind detection complexity;

[0034] MO.

[0035] Optionally, determining whether an MO set can be monitored is based on the number of detection units in each MO set and the number of detection units that have been determined to be monitorable, including:

[0036] If the sum of the number of detection units in the MO set and the number of detection units that have been determined to be monitorable is less than a first threshold, then the MO set is determined to be monitorable.

[0037] or

[0038] If the number of detection units in the MO set is less than the difference between the second threshold and the number of detection units that have been determined to be monitorable, then the MO set is determined to be monitorable.

[0039] Optionally, the first order includes one of the following:

[0040] The MO sets are numbered in ascending order;

[0041] The MO sets are ordered from highest to lowest priority.

[0042] Optionally, before determining the target candidate PDCCH based on the target set, the method further includes:

[0043] The third information for determining the candidate PDCCH sets contained in the first search space set includes: the PDCCHs contained in each candidate PDCCH set;

[0044] Based on the third information, fourth information is determined for all candidate PDCCH sets included in the first search space set. The fourth information includes: the number of the candidate PDCCH set or the priority information of the candidate PDCCH set.

[0045] Based on the fourth information, it is determined whether each candidate PDCCH set can be monitored;

[0046] The target candidate PDCCH includes candidate PDCCHs from the set of candidate PDCCHs that can be monitored.

[0047] Optionally, the method for determining the fourth information includes at least one of the following:

[0048] Determined based on the index of the first search space set;

[0049] Determined based on the index of the candidate PDCCH contained in the candidate PDCCH set;

[0050] Determined based on the aggregation level (AL) value of the candidate PDCCH;

[0051] Determined based on the temporal order of the MOs contained in the first search space set;

[0052] Determined based on the index number of the MO contained in the first search space set;

[0053] The number is determined based on the MO set number contained in the first search space set.

[0054] Optionally, determining whether each candidate PDCCH set can be monitored based on the fourth information includes:

[0055] Whether a candidate PDCCH set can be monitored is determined based on the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be monitorable.

[0056] Specifically, in accordance with the second order indicated by the fourth information, it is determined whether each candidate PDCCH set can be monitored.

[0057] Optionally, the detection unit includes one of the following:

[0058] Candidate PDCCH;

[0059] Candidate PDCCH pairs;

[0060] Blind detection complexity;

[0061] MO.

[0062] Optionally, determining whether a candidate PDCCH set can be monitored based on the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be monitorable includes:

[0063] If the sum of the number of detection units in the candidate PDCCH set and the number of detection units that have been determined to be monitorable is less than the third threshold, it is determined that the candidate PDCCH set can be monitored.

[0064] or

[0065] If the number of detection units in the candidate PDCCH set is less than the difference between the fourth threshold and the number of detection units that have been determined to be monitorable, then the candidate PDCCH set is determined to be monitorable.

[0066] Optionally, the second order includes one of the following:

[0067] The candidate PDCCH sets are numbered in ascending order;

[0068] The candidate PDCCH sets are ordered from highest to lowest priority.

[0069] Optionally, when determining the target candidate PDCCH based on the MO set contained in the search space set, the target candidate PDCCH includes one of the following:

[0070] The candidate PDCCHs contained in the MO set that can be monitored in the second search space set;

[0071] In the MO set included in the second search space set, there are candidate PDCCHs with an aggregation level AL of the first value;

[0072] The second search space set contains the MO set, which contains candidate PDCCHs with an index value of the second value.

[0073] Optionally, when determining the target candidate PDCCH based on the set of candidate PDCCHs contained in the search space set, the target candidate PDCCH includes one of the following:

[0074] The candidate PDCCHs included in the candidate PDCCH set that can be monitored in the second search space set;

[0075] The second search space set includes candidate PDCCHs with an aggregation level AL of the third value.

[0076] The candidate PDCCH with the fourth index value is included in the second search space set.

[0077] Optionally, the method further includes:

[0078] Determine the first PDCCH among the target candidate PDCCHs, where the first PDCCH is a candidate PDCCH that will not be transmitted;

[0079] The monitoring of the target candidate PDCCH includes:

[0080] The candidate PDCCHs other than the first PDCCH in the target candidate PDCCH are monitored.

[0081] Optionally, the method further includes:

[0082] Determine a second PDCCH contained in the search space set, wherein the second PDCCH is a candidate PDCCH that will not be transmitted;

[0083] Based on the target set, candidate PDCCHs are determined, including:

[0084] Based on the target set, the target candidate PDCCH is determined from the candidate PDCCHs other than the second PDCCH.

[0085] Optionally, the target set includes at least two associated search space sets;

[0086] The step of determining the target candidate PDCCH based on the target set includes:

[0087] The target candidate PDCCH is determined based on the index values ​​of the at least two associated search space sets.

[0088] Optionally, the method further includes:

[0089] The target set is determined based on the terminal's decoding capability or the second indication information from the network-side device;

[0090] The second indication information indicates the number of decoding units used by the terminal for decoding.

[0091] Optionally, determining the target set includes:

[0092] If the number of decoding units used by the terminal decoding is less than the third number, the target set is determined to be any one of the following: the search space set, the MO set contained in the search space set, and the candidate PDCCH set contained in the search space set.

[0093] Embodiments of the present invention provide a control channel monitoring device, comprising: a memory, a transceiver, and a processor.

[0094] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0095] The target candidate PDCCH is determined based on the target set, which includes one of the following: a search space set, a set of monitoring opportunities (MO) included in the search space set, and a set of candidate downlink control channels (PDCCH) included in the search space set;

[0096] Monitor the target candidate PDCCH;

[0097] The target candidate PDCCH is a detection unit that can be monitored.

[0098] Optionally, the search space set includes at least two associated first search space sets within a time unit.

[0099] Optionally, the search space set includes: at least two associated first search space sets within a time unit, and at least one second search space set;

[0100] Wherein, the sum of the first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set and the second number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the second search space set is less than or equal to the first detection threshold of the terminal for candidate PDCCHs.

[0101] or

[0102] The first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set is less than or equal to the second detection threshold of the terminal for candidate PDCCHs; the second number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the second search space set is less than or equal to the third detection threshold of the terminal for candidate PDCCHs.

[0103] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0104] Receive the first instruction message;

[0105] Wherein, the first indication information is used to indicate that: in the first time unit, the terminal performs PDCCH transmission on one of the at least two associated search space sets; or, in the first time unit, the terminal performs PDCCH transmission on two of the at least two associated search space sets.

[0106] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0107] First information is determined about the MO sets contained in the first search space set. The first information includes: the MOs contained in each MO set and the candidate PDCCHs contained in the MO sets.

[0108] Based on the first information, determine the second information of all MO sets included in the first search space set, the second information including: the number of the MO set or the priority information of the MO set;

[0109] Based on the second information, determine whether each of the MO sets can be monitored;

[0110] The target candidate PDCCH includes candidate PDCCHs in the MO set that can be monitored.

[0111] Optionally, the method for determining the second information includes at least one of the following:

[0112] Determined based on the index of the first search space set;

[0113] Determined according to the time sequence of the MO;

[0114] Determined based on the number of candidate PDCCHs contained in the MO set;

[0115] Determined based on the index number of the MO set.

[0116] Optionally, determining whether each of the MO sets can be monitored based on the second information includes:

[0117] Whether a set of MOs can be monitored is determined based on the number of detection units in each set of MOs and the number of detection units that have been determined to be monitorable.

[0118] Specifically, in accordance with the first order indicated by the second information, it is determined whether each of the MO sets can be monitored.

[0119] Optionally, the detection unit includes one of the following:

[0120] Candidate PDCCH;

[0121] Candidate PDCCH pairs;

[0122] Blind detection complexity;

[0123] MO.

[0124] Optionally, determining whether an MO set can be monitored is based on the number of detection units in each MO set and the number of detection units that have been determined to be monitorable, including:

[0125] If the sum of the number of detection units in the MO set and the number of detection units that have been determined to be monitorable is less than a first threshold, then the MO set is determined to be monitorable.

[0126] or

[0127] If the number of detection units in the MO set is less than the difference between the second threshold and the number of detection units that have been determined to be monitorable, then the MO set is determined to be monitorable.

[0128] Optionally, the first order includes one of the following:

[0129] The MO sets are numbered in ascending order;

[0130] The MO sets are ordered from highest to lowest priority.

[0131] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0132] The third information for determining the candidate PDCCH sets contained in the first search space set includes: the PDCCHs contained in each candidate PDCCH set;

[0133] Based on the third information, fourth information is determined for all candidate PDCCH sets included in the first search space set. The fourth information includes: the number of the candidate PDCCH set or the priority information of the candidate PDCCH set.

[0134] Based on the fourth information, it is determined whether each candidate PDCCH set can be monitored;

[0135] The target candidate PDCCH includes candidate PDCCHs from the set of candidate PDCCHs that can be monitored.

[0136] Optionally, the method for determining the fourth information includes at least one of the following:

[0137] Determined based on the index of the first search space set;

[0138] Determined based on the index of the candidate PDCCH contained in the candidate PDCCH set;

[0139] Determined based on the aggregation level AL value of the candidate PDCCH;

[0140] Determined based on the temporal order of the MOs contained in the first search space set;

[0141] Determined based on the index number of the MO contained in the first search space set;

[0142] The number is determined based on the MO set number contained in the first search space set.

[0143] Optionally, determining whether each candidate PDCCH set can be monitored based on the fourth information includes:

[0144] Whether a candidate PDCCH set can be monitored is determined based on the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be monitorable.

[0145] Specifically, in accordance with the second order indicated by the fourth information, it is determined whether each candidate PDCCH set can be monitored.

[0146] Optionally, the detection unit includes one of the following:

[0147] Candidate PDCCH;

[0148] Candidate PDCCH pairs;

[0149] Blind detection complexity;

[0150] MO.

[0151] Optionally, determining whether a candidate PDCCH set can be monitored based on the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be monitorable includes:

[0152] If the sum of the number of detection units in the candidate PDCCH set and the number of detection units that have been determined to be monitorable is less than the third threshold, it is determined that the candidate PDCCH set can be monitored.

[0153] or

[0154] If the number of detection units in the candidate PDCCH set is less than the difference between the fourth threshold and the number of detection units that have been determined to be monitorable, then the candidate PDCCH set is determined to be monitorable.

[0155] Optionally, the second order includes one of the following:

[0156] The candidate PDCCH sets are numbered in ascending order;

[0157] The candidate PDCCH sets are ordered from highest to lowest priority.

[0158] Optionally, when determining the target candidate PDCCH based on the MO set contained in the search space set, the target candidate PDCCH includes one of the following:

[0159] The candidate PDCCHs contained in the MO set that can be monitored in the second search space set;

[0160] In the MO set included in the second search space set, there are candidate PDCCHs with an aggregation level AL of the first value;

[0161] The second search space set contains the MO set, which contains candidate PDCCHs with an index value of the second value.

[0162] Optionally, when determining the target candidate PDCCH based on the set of candidate PDCCHs contained in the search space set, the target candidate PDCCH includes one of the following:

[0163] The candidate PDCCHs included in the candidate PDCCH set that can be monitored in the second search space set;

[0164] The second search space set includes candidate PDCCHs with an aggregation level AL of the third value.

[0165] The candidate PDCCH with the fourth index value is included in the second search space set.

[0166] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0167] Determine the first PDCCH among the target candidate PDCCHs, where the first PDCCH is a candidate PDCCH that will not be transmitted;

[0168] The monitoring of the target candidate PDCCH includes:

[0169] The candidate PDCCHs other than the first PDCCH in the target candidate PDCCH are monitored.

[0170] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0171] Determine a second PDCCH contained in the search space set, wherein the second PDCCH is a candidate PDCCH that will not be transmitted;

[0172] Based on the target set, candidate PDCCHs are determined, including:

[0173] Based on the target set, the target candidate PDCCH is determined from the candidate PDCCHs other than the second PDCCH.

[0174] Optionally, the target set includes at least two associated search space sets;

[0175] The step of determining the target candidate PDCCH based on the target set includes:

[0176] The target candidate PDCCH is determined based on the index values ​​of the at least two associated search space sets.

[0177] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0178] The target set is determined based on the terminal's decoding capability or the second indication information from the network-side device;

[0179] The second indication information indicates the number of decoding units used by the terminal for decoding.

[0180] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0181] If the number of decoding units used by the terminal decoding is less than the third number, the target set is determined to be any one of the following: the search space set, the MO set contained in the search space set, and the candidate PDCCH set contained in the search space set.

[0182] An embodiment of the present invention provides a control channel monitoring device, comprising:

[0183] The first determining unit is configured to determine a target candidate PDCCH based on a target set, wherein the target set includes one of the following: a search space set, a set of monitoring opportunities (MO) included in the search space set, and a set of candidate downlink control channels (PDCCH) included in the search space set.

[0184] A monitoring unit is used to monitor the target candidate PDCCH;

[0185] The target candidate PDCCH is a detection unit that can be monitored.

[0186] An embodiment of the present invention provides a processor-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the control channel monitoring method described above.

[0187] The beneficial effects of the above-mentioned technical solution of the present invention are:

[0188] In embodiments of the present invention, the terminal determines the target candidate PDCCH that can be monitored based on the granularity of the set formed by the search space set, the MO set, or the candidate PDCCH set, and monitors the target candidate PDCCH. This ensures that multiple repeated transmissions of PDCCH can be detected, including repeated transmissions of PDCCH, thereby ensuring the transmission reliability of PDCCH. Attached Figure Description

[0189] Figure 1 A flowchart illustrating the control channel monitoring method according to an embodiment of the present invention;

[0190] Figure 2 One of the schematic diagrams illustrating the search space set in an embodiment of the present invention;

[0191] Figure 3 A second schematic diagram illustrating the search space set in an embodiment of the present invention;

[0192] Figure 4 A third schematic diagram illustrating the search space set in an embodiment of the present invention;

[0193] Figure 5 Fourth schematic diagram illustrating the search space set in an embodiment of the present invention;

[0194] Figure 6 Fifth schematic diagram illustrating the search space set in an embodiment of the present invention;

[0195] Figure 7 A sixth schematic diagram illustrating the search space set in an embodiment of the present invention;

[0196] Figure 8 Seventh schematic diagram illustrating the search space set in an embodiment of the present invention;

[0197] Figure 9 Eighth schematic diagram illustrating the search space set in an embodiment of the present invention;

[0198] Figure 10 This is one of the structural schematic diagrams of the control channel monitoring device according to an embodiment of the present invention;

[0199] Figure 11 This is the second schematic diagram illustrating the structure of the control channel monitoring device according to an embodiment of the present invention. Detailed Implementation

[0200] To make the technical problems, technical solutions, and advantages of this invention clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this invention. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this invention. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0201] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0202] In various embodiments of the present invention, it should be understood that the sequence number of each process described below does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0203] In this embodiment of the invention, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0204] In the embodiments of this application, the term "multiple" refers to two or more, and other quantifiers are similar.

[0205] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0206] Specifically, embodiments of the present invention provide a control channel monitoring method that solves the problem of low transmission reliability of PDCCH in existing PDCCH monitoring methods.

[0207] like Figure 1 As shown, an embodiment of the present invention provides a control channel monitoring method, specifically including the following steps:

[0208] Step 101: The terminal determines the target candidate PDCCH according to the target set, which includes one of the following: the search space set (SS set), the monitoring opportunity set (MO) contained in the search space set, and the candidate downlink control channel (PDCCH) set contained in the search space set; wherein, the target candidate PDCCH is a candidate PDCCH that can be monitored.

[0209] In this embodiment, the target set can be a set consisting of at least one search space set, or the target set can be a set of monitoring opportunities (MOs) contained in the search space set, each MO set including at least one MO, and each MO including at least one candidate PDCCH; or, the target set can be a set of candidate PDCCHs contained in the search space set, each search space set including at least one candidate PDCCH set, and each candidate PDCCH set including at least one candidate PDCCH.

[0210] The terminal determines the candidate PDCCHs that can be monitored from the candidate PDCCHs based on the target set. That is, it determines the range of candidate PDCCHs that can be monitored by taking the target set as the unit, and determines the candidate PDCCHs that the terminal can monitor, so as to ensure that when PDCCH is repeatedly transmitted, multiple repeated transmissions of the same PDCCH can be detected.

[0211] Step 102: The terminal monitors the target candidate PDCCH;

[0212] The number of target candidate PDCCHs satisfies the terminal's blind monitoring capability within a time unit, where the time unit can be a time slot or a duration (span), and the span can be, for example, N symbols.

[0213] In embodiments of the present invention, the terminal determines the target candidate PDCCH that can be monitored based on the granularity of the set formed by the search space set, the MO set, or the candidate PDCCH set, and monitors the target candidate PDCCH. This ensures that multiple repeated transmissions of PDCCH can be detected, including repeated transmissions of PDCCH, thereby ensuring the transmission reliability of PDCCH.

[0214] It should be noted that this application is applicable to various scenarios including repeated PDCCH transmissions, such as: a time unit consisting only of repeated PDCCH transmissions, a time unit consisting of both repeated and single PDCCH transmissions, and dynamic signaling instructing the terminal to dynamically switch between repeated and single PDCCH transmissions within a time unit. Specifically, when at least two search space sets are associated within a time unit, the associated search space sets can be used for repeated PDCCH transmissions, meaning the associated search space sets transmit the same PDCCH.

[0215] Taking a scenario where only PDCCH repetition occurs within a single time unit as an example, such as in Ultra-Reliable and Low-Latency Communications (URLLC) scenarios, terminals have very high reliability requirements for PDCCH transmission, such as 99.999% or 99.9999%. All DCI formats of the terminal can be transmitted in a repetitive manner, including DCI formats 1_0, 1_1, 1_2, 0_0, 0_1, 0_2 and DCI formats 2_x (x = 0, 1, 2, 3, 4, 5, 6…) and DCI format 3_y (y = 0, 1, 2…). Correspondingly, DCI / PDCCH transmitted in both the UE-specific search space (USS) set and the Common Search Space (CSS) set are repetitively transmitted. In this case, the network-side equipment configures two SS sets as associated for repetitive transmission of the same PDCCH. For example, SS set 1 and SS set 2 are associated for transmitting DCI1, and SS set 3 and SS set 4 are associated for transmitting DCI2, etc.

[0216] In addition, each SS set can contain multiple MOs, such as Figure 2As shown, SS set 1 and SS set 2 each contain two MOs. The terminal can determine that every two MOs are associated, meaning they can be used for the same PDCCH transmission, based on the network-side device configuration or predefined rules, and define them as a set of MOs. For example... Figure 2 It contains two MO sets.

[0217] Similarly, when SS set 1 and SS set 2 each contain 4 MOs, the terminal can determine that every 4 MOs are associated, i.e., can be used for the same PDCCH transmission, based on the network-side device configuration or predefined rules, and define them as a set of MOs. For example Figure 3 It contains 2 sets of MOs, and each set of MOs contains 4 MOs. For example... Figure 4 It contains 4 MO sets, and each MO set contains 2 MOs.

[0218] The terminal can determine the target candidate PDCCH based on the MO set. That is, it determines whether the MO set can be monitored. If the MO set can be monitored, then all candidate PDCCHs included in the MO set can be monitored; if the MO set cannot be monitored, then all candidate PDCCHs in the MO set cannot be monitored.

[0219] The terminal can also treat multiple associated candidate PDCCHs as a set, and determine whether the candidate PDCCH set can be monitored. If the candidate PDCCH set can be monitored, then all candidate PDCCHs in the candidate PDCCH set can be monitored; if the candidate PDCCH set cannot be monitored, then all candidate PDCCHs in the candidate PDCCH set cannot be monitored.

[0220] The terminal can also use a set of multiple SS sets as a unit to determine whether the SS set can be monitored. If the SS set can be monitored, then all candidate PDCCHs contained in the SS set can be monitored; if the SS set cannot be monitored, then all candidate PDCCHs contained in the SS set cannot be monitored.

[0221] The following specific examples illustrate how the terminal determines the target candidate PDCCH based on the target set.

[0222] Scenario 1: Includes repeated PDCCH transmissions within a time unit. This can include only repeated PDCCH transmissions, or it can include both repeated PDCCH transmissions and single PDCCH transmissions.

[0223] Specifically, the search space set includes at least two associated first search space sets within a time unit. The network-side device is configured to associate at least two first search space sets within a time unit, i.e., for repeated transmissions of the same PDCCH, for example... Figure 2 As shown, SS set 1 and SS set 2 are associated and used to transmit DCI1, while SS set 3 and SS set 4 are associated and used to transmit DCI2.

[0224] When PDCCH is repeatedly transmitted within a time unit, the terminal can determine the target candidate PDCCH that can be monitored based on one of the search space set, MO set, or candidate PDCCH set.

[0225] If a time unit also includes a single PDCCH transmission, the terminal can calculate the candidate PDCCHs that can be monitored during a single PDCCH transmission based on the existing candidate PDCCH monitoring method, or determine the candidate PDCCHs that can be monitored based on a set of multiple SS sets, an MO set, or a candidate PDCCH set.

[0226] Scenario 2: A time unit includes both repeated PDCCH transmissions and single PDCCH transmissions.

[0227] Specifically, the search space set includes: at least two associated first search space sets within a time unit, and at least one second search space set; the at least two associated first search space sets can be used for repeated PDCCH transmissions, and the second search space set can be used for single PDCCH transmissions.

[0228] Wherein, the sum of the first number of target candidate PDCCHs determined by the set of multiple SS sets, MO set, or candidate PDCCH set contained in the first search space set, and the second number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the second search space set is less than or equal to the first detection threshold of the terminal for candidate PDCCHs.

[0229] or

[0230] The first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set is less than or equal to the second detection threshold of the terminal for candidate PDCCHs; the second number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the second search space set is less than or equal to the third detection threshold of the terminal for candidate PDCCHs.

[0231] In this embodiment, when a time unit includes both repeated PDCCH transmissions and single PDCCH transmissions, the number or complexity of detection units that the terminal can monitor can be calculated using both single and repeated PDCCH transmissions. Specifically, a detection threshold is set based on the terminal's upper limit of detection capability for candidate PDCCHs. This threshold can be the number of detection units or the complexity of detecting multiple detection units. Candidate PDCCHs in the associated first search space set are used for repeated transmissions, and candidate PDCCHs in the independent second search space set are used for single transmissions. The sum of the number of candidate PDCCHs monitored for repeated transmissions and the number of candidate PDCCHs monitored for single transmissions satisfies the terminal's upper limit of monitoring capability. That is, the sum of the first and second numbers is less than or equal to the terminal's first detection threshold for candidate PDCCHs. The first detection threshold can be the maximum number of candidate PDCCHs that the terminal can detect.

[0232] Alternatively, when a time unit contains both repeated PDCCH transmissions and single PDCCH transmissions, the number of candidate PDCCHs that the terminal can monitor can be calculated separately for single PDCCH transmissions and repeated PDCCH transmissions. A maximum number of PDCCHs that the terminal can monitor is set for each type of transmission, i.e., a second detection threshold is set for repeated PDCCH transmissions, and a third detection threshold is set for single PDCCH transmissions. The number of candidate PDCCHs that can be monitored for repeated transmissions is less than or equal to the second detection threshold, and the number of candidate PDCCHs that can be monitored for single transmissions is less than or equal to the third detection threshold.

[0233] The detection threshold for candidate PDCCHs by the terminal can be configured by the network-side device or determined according to predefined rules. When determining the number of candidate PDCCHs that can be monitored for a single transmission, it can be calculated based on existing candidate PDCCH monitoring methods or determined according to the target set.

[0234] Scenario 3: Dynamic signaling indicates that the terminal dynamically switches between repeated PDCCH transmissions and single PDCCH transmissions within a time unit. This dynamic signaling can be sent by network-side devices.

[0235] Specifically, as an optional embodiment, the method further includes: receiving first indication information; wherein the first indication information is used to indicate that: in a first time unit, the terminal performs PDCCH transmission on one of at least two associated search space sets; or, in a first time unit, the terminal performs PDCCH transmission on two of at least two associated search space sets.

[0236] In this embodiment, the network-side device is configured to include at least two associated SS sets within a time unit. The associated SS sets are used for repeated PDCCH transmission. The network-side device can instruct the terminal to perform PDCCH transmission in one of the associated SS sets through a first indication information. For example, if SS set1 and SS set2 are associated, then SS set1 and SS set2 are used for repeated PDCCH transmission. The network-side device sends signaling to instruct the terminal to perform PDCCH transmission only on SS set1 in a certain time slot. That is, repeated PDCCH transmission is dynamically switched to single PDCCH transmission.

[0237] Alternatively, the network-side device may instruct the terminal via dynamic signaling to perform PDCCH transmission on two of at least two associated search space sets within the first time unit. For example, if SS set1, SS set2, and SS set3 are associated, then SS set1, SS set2, and SS set3 are all used for repeated PDCCH transmission. The network-side device may send signaling instructing the terminal to perform PDCCH transmission only on SS set1 and SS set2 in a certain time slot, meaning that SS set1 and SS set2 perform repeated PDCCH transmission, while SS set3 can perform a single PDCCH transmission.

[0238] Scenario 4: The terminal determines the target candidate PDCCH based on a set consisting of multiple search space sets.

[0239] Specifically, the target set includes at least two associated search space sets; determining the target candidate PDCCH based on the target set may include: determining the target candidate PDCCH based on the index values ​​of the at least two associated search space sets.

[0240] The terminal can directly determine which candidate PDCCHs can be monitored based on the index values ​​of the associated search space sets. For example, candidate PDCCHs contained in search space sets with low or high index values ​​or a specific value are the target candidate PDCCHs. For example, for multiple associated SS sets, the terminal only monitors the candidate PDCCHs contained in the SS set with the lowest index value, or the terminal only monitors the candidate PDCCHs contained in the SS set with the highest index value, or the terminal only monitors the candidate PDCCHs contained in the SS set with an index value of the target value.

[0241] The following specific examples illustrate the implementation methods for determining target candidate PDCCHs based on different target sets in different scenarios.

[0242] For scenario one: two methods are provided as examples.

[0243] Method 1: When a time unit only includes repeated PDCCH transmissions, the terminal determines the target candidate PDCCH based on the MO set.

[0244] The terminal takes all candidate PDCCHs on at least two MOs where the two associated candidate PDCCH transmissions reside as a set and determines whether this set can be monitored. If the MO set can be monitored, then all candidate PDCCHs in the MO set can be monitored; otherwise, all candidate PDCCHs cannot be monitored.

[0245] Specifically, before determining the target candidate PDCCH based on the target set, the method may further include:

[0246] Step 1: Determine the first information of the MO sets contained in the first search space set. The first information includes: the MOs contained in each MO set and the candidate PDCCHs contained in the MO sets.

[0247] Specifically, the terminal determines the number of MO sets by determining the first information. The terminal can determine the MO sets contained in the associated SS set based on the configuration of the network-side device or predefined rules, including the number of MO sets (e.g., M sets), and the MOs and candidate PDCCHs contained in each MO.

[0248] Specifically, network-side devices can directly configure the number of MO sets or the number of PDCCH retransmissions in the associated SS set (e.g., in the Search Space parameter of SS set 1 and / or SS set 2, or in other higher-level parameters outside of SS set configurations). Figure 4 For example, the network-side device configuration terminal SS set 1 and SS set 2 have 4 MO sets, or SS set 1 and SS set 2 are used for repeated transmission of 4 PDCCH / DCI.

[0249] In addition, network-side devices can directly configure the MOs contained in each MO set, to Figure 4 For example, network-side devices can be configured as follows:

[0250] MO set 1 includes: the first MO of SS set 1 and the first MO of SS set 2;

[0251] MO set 2 includes: the second MO of SS set 1 and the second MO of SS set 2;

[0252] MO set 3 includes: the 3rd MO of SS set 1 and the 3rd MO of SS set 2;

[0253] MO set 4 includes: the 4th MO of SS set 1 and the 4th MO of SS set 2.

[0254] Here, the nth MO refers to the nth MO that appears on the time axis within a time unit (such as a time slot or a span). It can also be an index of the MO configured by the network-side device. For example, in SS set1, the four MOs within a time slot are configured as MO1, MO2, MO3, and MO4, respectively.

[0255] Alternatively, the terminal can determine the MOs contained in each MO set according to predefined rules. For example, the terminal can determine that MOs with the same index in two associated SS sets are associated, or that the two MOs with the smallest distance in two associated SS sets are associated, or that the i-th MO appearing on the time axis in the first SS set and the i-th MO appearing on the time axis in the second SS set are associated.

[0256] Alternatively, the terminal can jointly determine the MOs included in each MO set based on the network device's configuration and predefined rules. For example, the network device can configure the number of MO sets in SS set 1 and SS set 2 or the number of PDCCH repeated transmissions, and then determine the associated MOs included in each MO set according to the predefined rules.

[0257] It should be noted that the specific methods used by the terminal to determine which MOs are associated include, but are not limited to, the methods described above, and are not limited here. After determining the MOs contained in a set of MOs, it can be determined that the candidate PDCCHs contained in the set of MOs are the union of the candidate PDCCHs of all MOs in the set of MOs.

[0258] Step 2: Based on the first information, determine the second information of all MO sets included in the first search space set. The second information includes: the number of the MO set or the priority information of the MO set.

[0259] Based on the first information, the terminal assigns numbers to all MO sets within a time unit, or determines the priority information of each MO set. The priority information can be a priority value or an index. The number or priority information of the MO set is the second information.

[0260] Furthermore, the method for determining the second information may include at least one of the following:

[0261] (a) Determined based on the index of the first search space set;

[0262] (b) Determined according to the time sequence of the MO;

[0263] (c) Determined based on the number of candidate PDCCHs contained in the MO set;

[0264] (d) Determined based on the index number of the MO set.

[0265] It should be noted that when determining the second information, the terminal can determine it based on one or more of the above-mentioned factors, as illustrated by the following specific example.

[0266] Example 1: The terminal determines the second information based on the index of the first search space set and the time order of the MO set.

[0267] The terminal can first determine the MO set number or priority information based on the index of the SS set (referring to the first search space set) and then based on the chronological order of the MOs. The lower the SS set index and the lower the MO set index, the higher the priority of the MO set; the earlier the symbol appears in the MO set and the smaller its value, the lower the MO set index and the higher the priority of the MO set. Figure 5 For example, SS sets 1-4, each SS set contains 2 MOs, and every 2 MOs form a MO set. The terminal can determine that there are 4 MO sets. First, sort them according to the SS set index. The MO sets containing MOs from SS set 1 and SS set 2 have smaller numbers and higher priorities, while the MO sets containing MOs from SS set 3 and SS set 4 have larger numbers and lower priorities.

[0268] Alternatively, the terminal first determines the MO set number or priority information based on the chronological order of the MOs, and then based on the index of the SS set. Similarly, the lower the SS set index, the lower the MO set index, and the higher the priority of the MO set; the earlier the symbol appears in the MO set, the smaller the symbol value, the lower the MO set index, and the higher the priority of the MO set. For example, with... Figure 6 For example, it is similar to Figure 5 Given the same SS set and MO configuration, if we first sort by MO time order, then the following four MO sets will have the same numbering as... Figure 5 It is different (compared to) Figure 5 (MO set 2 and MO set 3 are interchanged).

[0269] Example 2: The terminal determines the second information based on the index of the first search space set or the time order of the MO set.

[0270] In this example, in some cases, the terminal can determine the numbering or priority information for all MO sets based solely on the index of the SS set (first search space set) or the chronological order of the MOs. In this case, the terminal determines the second information based only on one of the SS set index or the chronological order of the MOs. For example, in Figure 7 In this case, the first MO in SS set 3 and SS set 4 occupies different time symbols; the first MO in SS set 3 is at symbol 4, and the first MO in SS set 4 is at symbol 5. Therefore, the MO set number or priority can be determined solely based on the time order of the MOs. For example, if each SS set has only one MO, such as... Figure 8 As shown, Figure 8 If each of the SS sets 1-4 contains only the first MO, then the number or priority information of the MO set can be determined based on the index of the SS set.

[0271] Optionally, when determining the number or priority information of the MO set according to the time order of the MO, one MO can occupy multiple symbols. The number or priority of the MO set can be determined only according to the start symbol or the last symbol of each MO, that is, a unified standard is set for all MO sets. This method is also applicable to other embodiments involving MO.

[0272] Optionally, when determining the number or priority information of the MO set based on the index of the SS set, an MO set may contain two or more associated SS sets. In this case, the number or priority of the MO set can be determined based on the SS set with the smallest index in the MO set.

[0273] Example 3: The terminal determines the second information based on the number of candidate PDCCHs contained in the MO set.

[0274] The candidate PDCCHs contained in the MO set are the union of the candidate PDCCHs of all MOs in the MO set. Specifically, the method for determining the MO set number or priority information based on the number of candidate PDCCHs in the MO set may include one of the following:

[0275] a) The more candidate PDCCHs the MO set contains and the lower the MO set number, the higher the MO priority.

[0276] b): The fewer candidate PDCCHs the MO set contains, the lower the MO set number, and the higher the MO priority;

[0277] c): MO sets whose sum of the number of candidate PDCCHs in the MO set and the number of already determined monitorable candidate PDCCHs (e.g., defined as S1) is less than the maximum number of candidate PDCCHs that the terminal can monitor (e.g., defined as S) have smaller MO set numbers and higher priority. Furthermore, in MO sets where the sum of the number of candidate PDCCHs and S1 is less than S, the more candidate PDCCHs there are, the lower the MO set number and the higher the MO priority.

[0278] d): MO sets containing fewer candidate PDCCHs than S-S1 (the difference between the maximum number of candidate PDCCHs that the terminal can monitor and the number of already determined monitorable candidate PDCCHs) have smaller set numbers and higher priority. Furthermore, within MO sets containing fewer candidate PDCCHs than S-S1, the more candidate PDCCHs there are, the lower the MO set number and the higher the MO priority.

[0279] Example 4: The terminal determines the second information based on the index number of the MO set. In this case, an MO index needs to be defined.

[0280] Specifically, the index of a MO can be defined based on its SS set and the order in which it appears. For example, MOs can be numbered first based on their SS set index and then based on the time they appear. Figure 6 For example, the two MO indices of SS set 1 are 1 and 2, the two MO indices of SS set 2 are 3 and 4, the two MO indices of SS set 3 are 5 and 6, and the two MO indices of SS set 4 are 7 and 8; or the MOs can be numbered first according to their chronological order of appearance and then according to their SS set indices. Figure 6 For example, the indices 1-8 of MO are as follows: Figure 9 As shown.

[0281] After defining the MO index, the terminal assigns a number to all MO sets using the MO with the smallest index value in each MO set. The lower the index value of the MO with the smallest index value, the lower the number of the MO set and the higher its priority.

[0282] The above are merely exemplary implementations for determining the second information. In the embodiments of the present invention, the determination method is not limited to the example above, but can also be any combination of (a) to (d), which is similar to the above method and will not be described in detail here.

[0283] It should be noted that when the second information is the priority information of the MO set, the priority information can also be in the form of a number. For example, the MO set can be numbered in descending order of priority or ascending order of priority, or the MO set can be assigned a certain priority value.

[0284] Step 3: Based on the second information, determine whether each of the MO sets can be monitored; wherein, the target candidate PDCCH includes candidate PDCCHs in the MO sets that can be monitored.

[0285] The terminal determines whether each MO set can be monitored based on the second information. If an MO set can be monitored, then all candidate PDCCHs contained in that MO set can be monitored.

[0286] Specifically, determining whether each MO set can be monitored based on the second information may include: determining whether the MO set can be monitored based on the number of detection units in each MO set and the number of detection units that have been determined to be monitorable; wherein, each MO set is determined to be monitorable according to the first order indicated by the second information.

[0287] The detection unit includes one of the following: candidate PDCCH; candidate PDCCH pair; blind detection complexity (e.g., the blind detection complexity of the terminal in a set of MOs); MO. Taking the candidate PDCCH as the detection unit, the terminal can determine whether the MO set can be monitored based on the number or priority information of the MO set and the number of candidate PDCCHs contained in the MO set.

[0288] Furthermore, the terminal determines whether a set of MOs can be monitored based on the number of detection units in each set of MOs and the number of detection units that have been determined to be monitorable, which may include one of the following:

[0289] (1) If the sum of the number of detection units in the MO set and the number of detection units that have been determined to be monitored is less than the first threshold, it is determined that the MO set can be monitored.

[0290] Taking the detection unit as a candidate PDCCH as an example, if the sum of the number of candidate PDCCHs in the MO set and S1 (the number of candidate PDCCHs that have been determined to be monitorable) is less than S (i.e. the first threshold, which is the maximum number of candidate PDCCHs that the terminal can monitor), then the MO set can be monitored; otherwise, it cannot be monitored.

[0291] (2) If the number of detection units in the MO set is less than the difference between the second threshold and the number of detection units that have been determined to be monitorable, the MO set is determined to be monitorable.

[0292] If the number of candidate PDCCHs in the MO set is less than S-S1 (where S is the second threshold, which is the maximum number of candidate PDCCHs that the terminal can monitor; S1 is the number of candidate PDCCHs that have been determined to be monitorable), then the MO set can be monitored; otherwise, it cannot be monitored.

[0293] It should be noted that the terminal needs to determine whether each of the MO sets can be monitored, according to the first order indicated by the second information. The first order includes the following:

[0294] The MO sets are numbered in ascending order;

[0295] The MO sets are ordered from highest to lowest priority.

[0296] The terminal can perform the above judgment on each MO set one by one according to the MO set number in ascending order or the priority in descending order. If a certain MO set cannot be monitored, then MO sets with larger numbers or lower priorities cannot be monitored either. The first order indicated by the second information includes, but is not limited to, the two above, and can also be set to other orders according to monitoring requirements, such as: MO set numbers in descending order, MO set priorities in ascending order, etc.

[0297] The above example uses the detection unit as a candidate PDCCH to illustrate the specific method for determining whether the MO set can be monitored. It is worth noting that, in addition to judging based on the number of monitorable candidate PDCCHs, other units can also be used as the scale. For example, the number of monitorable candidate PDCCH pairs (e.g., 2 candidate PDCCHs), or the complexity of a single blind detection (e.g., the complexity of a single blind detection in an MO set can be 2 monitorable candidate PDCCHs, or more than 1 but less than 2 monitorable candidate PDCCHs, or 3 monitorable candidate PDCCHs, etc.), or the monitorable MO set, etc. The above scales can be collectively referred to as detection units. The implementation process is similar to determining whether the MO set can be monitored based on the number of monitorable candidate PDCCHs, and will not be elaborated here.

[0298] In this embodiment, a maximum detectable detection unit (T) and a pre-determined detectable detection unit (T1) are defined. Specifically, the method for determining whether the MO set can be monitored is as follows:

[0299] If the sum of the number of detection units in the MO set and T1 is less than T, then the MO set can be monitored; otherwise, it cannot be monitored.

[0300] Alternatively, if the number of detection units in the MO set is less than T-T1, then the MO set can be monitored; otherwise, it cannot be monitored.

[0301] The terminal performs the above judgment on each MO set in ascending order of its set number or descending order of its priority. If a certain MO set cannot be monitored, then all MO sets with a higher number or lower priority cannot be monitored.

[0302] Optionally, after determining whether each MO set can be monitored according to steps 1 to 3 above, the method further includes:

[0303] Step 4: The terminal monitors the candidate PDCCH in the set of MOs that can be monitored.

[0304] After determining the set of MOs that can be monitored, the terminal monitors the candidate PDCCHs in all the MOs that can be monitored, and then solves the corresponding PDCCHs.

[0305] In one embodiment of method one, there may be a situation where some MOs in two SS sets are monitored, but neither SS set is fully monitored. This ensures that the terminal can monitor multiple repeated transmissions of the same PDCCH, thereby improving the reliability of PDCCH transmission.

[0306] Method 2: When a time unit only includes repeated PDCCH transmissions, the terminal determines the target candidate PDCCH based on the candidate PDCCH set.

[0307] The terminal determines candidate PDCCHs based on the candidate PDCCH set. The terminal can group at least two associated candidate PDCCHs into a set and determine whether the PDCCH set can be monitored. If the PDCCH set can be monitored, then all candidate PDCCHs in the set can be monitored; otherwise, all candidate PDCCHs in the PDCCH set cannot be monitored.

[0308] The number of candidate PDCCH sets is less than the number of all candidate PDCCHs in an SS set, or the number of candidate PDCCH sets is less than the number of candidate PDCCHs in an MO set in Method 1. In other words, Method 2 determines whether a candidate PDCCH can be monitored with a smaller granularity.

[0309] Specifically, before determining the target candidate PDCCH based on the target set, the method may further include:

[0310] Step A: Determine the third information of the candidate PDCCH sets contained in the first search space set, wherein the third information includes: the PDCCHs contained in each candidate PDCCH set.

[0311] The terminal can determine the candidate PDCCH set contained in the associated SS set according to the configuration of the network-side device or predefined rules, including the number of candidate PDCCH sets (e.g., M) and the candidate PDCCH contained in each candidate PDCCH set.

[0312] Specifically, the network-side device can explicitly configure the terminal with a candidate PDCCH set containing a certain number of candidate PDCCHs, or explicitly configure M candidate PDCCH sets, as well as the index and / or AL of the candidate PDCCHs contained in each candidate PDCCH set. For example, when the network-side device does not configure candidate PDCCH sets, the terminal can default to each candidate PDCCH set containing 2 candidate PDCCHs; that is, two associated candidate PDCCHs used to transmit the same PDCCH constitute a single candidate PDCCH set. Taking two associated SS sets as an example, when two SS sets are associated (used to transmit the same candidate PDCCH), two candidate PDCCHs in the two SS sets with the same AL value and the same candidate PDCCH index are associated.

[0313] Alternatively, taking two associated SS sets as an example, the terminal can also determine, according to predefined rules, all candidate PDCCHs with the same AL in the two associated SS sets to form a candidate PDCCH set, or candidate PDCCHs with the same index value in the two associated SS sets, with different AL values, to form a candidate PDCCH set.

[0314] For example: Network-side devices are configured to associate SS set 1 and SS set 2. Each SS set includes multiple candidate PDCCHs; the AL of SS set 1 is 1, 2, 4, 8, and the AL of SS set 2 is 4, 8; PDCCHs with the same AL in the two SS sets form a candidate PDCCH set, that is, the candidate PDCCH with AL=4 in SS set 1 and the candidate PDCCH with AL=4 in SS set 2 together form a candidate PDCCH set; the candidate PDCCH with AL=8 in SS set 1 and the candidate PDCCH with AL=8 in SS set 2 together form a second candidate PDCCH set.

[0315] For example, network-side devices are configured to associate SS set 1 and SS set 2. Each SS set includes multiple candidate PDCCHs; AL=4, 8 for SS set 1 and AL=4, 8 for SS set 2; PDCCHs with the same AL in the two SS sets form a candidate PDCCH set, that is, the candidate PDCCHs with AL=4 in SS set 1 and the candidate PDCCHs with AL=4 in SS set 2 together constitute a candidate PDCCH set; the candidate PDCCHs with AL=8 in SS set 1 and the candidate PDCCHs with AL=8 in SS set 2 together constitute a second candidate PDCCH set.

[0316] Step B: Based on the third information, determine the fourth information of all candidate PDCCH sets contained in the first search space set. The fourth information includes: the number of the candidate PDCCH set or the priority information of the candidate PDCCH set.

[0317] The terminal assigns numbers to all candidate PDCCH sets within a time unit or determines the priority information of each candidate PDCCH set. The priority information may include a priority value or an index. The number of the candidate PDCCH set or the priority information of the candidate PDCCH set constitutes the fourth information.

[0318] Specifically, the method for determining the fourth information may include at least one of the following:

[0319] (a) Determined based on the index of the first search space set;

[0320] (b) Determined based on the index of the candidate PDCCH contained in the candidate PDCCH set;

[0321] (c) Determined based on the aggregation level AL value of the candidate PDCCH;

[0322] (d) Determined based on the temporal order of the MOs contained in the first search space set;

[0323] (e) Determined based on the index number of the MO contained in the first search space set;

[0324] (f) Determined based on the number of the MO set contained in the first search space set.

[0325] It should be noted that when determining the fourth piece of information, the terminal can determine it based on one or more of the above-mentioned information, as illustrated by the following specific example.

[0326] Example 5: The terminal determines the fourth information based on the index of the first search space set and / or the index of the candidate PDCCH contained in the candidate PDCCH set.

[0327] The terminal can first determine the number or priority of the candidate PDCCH set based on the index of the SS set (i.e., the first search space set), and then based on the index of the candidate PDCCH. For example, SS set 1 and SS set 2 are associated, and SS set 3 and SS set 4 are associated. The terminal can then determine that the candidate PDCCH sets corresponding to SS set 1 and SS set 2 have smaller candidate PDCCH set indices or higher priorities. Then, among the multiple candidate PDCCH sets corresponding to SS set 1 and SS set 2, the candidate PDCCH sets are further numbered according to their indices. For example, they can be sorted according to the index of the candidate PDCCH with the lowest candidate PDCCH index value in each candidate PDCCH set. The candidate PDCCH set with the smallest lowest candidate PDCCH index value has the smallest candidate PDCCH set index.

[0328] Alternatively, the terminal first determines the number or priority of the candidate PDCCH set based on the candidate PDCCH index, and then based on the index of the SS set. For example, the terminal first numbers the candidate PDCCH sets according to their candidate PDCCH indices, such as sorting them by the index of the candidate PDCCH with the lowest candidate PDCCH index value in each candidate PDCCH set; the terminal then further numbers or determines the priority based on the index of the SS set, such as the candidate PDCCH sets corresponding to SS set 1 and SS set 2 having smaller candidate PDCCH set indices or higher priorities, and the candidate PDCCH sets corresponding to SS set 3 and SS set 4 having larger candidate PDCCH set indices or lower priorities.

[0329] The terminal may also determine the number or priority of the candidate PDCCH set based solely on the index of the first search space set, or it may determine the number or priority of the candidate PDCCH set based solely on the index of the candidate PDCCH, which will not be elaborated further here.

[0330] Example 6: The terminal determines the fourth information based on the index of the first search space set and / or the value of the aggregation level AL of the candidate PDCCH.

[0331] The terminal can first determine the number or priority of the candidate PDCCH set based on the SS set index and then based on the AL value; or the terminal can first determine the number or priority of the candidate PDCCH set based on the AL value and then based on the SS set index.

[0332] For example, if SS set 1 and SS set 2 are associated, and SS set 3 and SS set 4 are associated, the terminal can determine that the candidate PDCCH sets corresponding to SS set 1 and SS set 2 have smaller candidate PDCCH set indices or higher priorities. Then, among the multiple candidate PDCCH sets corresponding to SS set 1 and SS set 2, they are further numbered according to the AL values ​​corresponding to the candidate PDCCHs. For example, among the multiple candidate PDCCH sets, they are sorted according to the candidate PDCCH with the smallest AL value. For example, the candidate PDCCH set with the smallest AL value has the smallest candidate PDCCH set number and has higher priority. Another example: the candidate PDCCH set with the largest AL value has the smallest candidate PDCCH set number and has higher priority.

[0333] The terminal can also first number or determine the priority of the candidate PDCCHs based on the AL values ​​corresponding to the candidate PDCCHs in multiple candidate PDCCH sets, and then number or determine the priority of each candidate PDCCH set based on the index of the SS set. This is similar to the method described above and will not be elaborated here.

[0334] The terminal may also determine the number or priority of the candidate PDCCH set based solely on the index of the first search space set, or it may determine the number or priority of the candidate PDCCH set solely on the AL value of the candidate PDCCH, which will not be elaborated here.

[0335] Example 7: The terminal determines the fourth information based on the time order of the MOs contained in the first search space set and / or the index of the candidate PDCCH.

[0336] The terminal may first determine the number or priority of the candidate PDCCH set based on the chronological order of the MOs and then based on the index of the candidate PDCCHs; alternatively, the terminal may first determine the number or priority of the candidate PDCCH set based on the index of the candidate PDCCHs and then based on the chronological order of the MOs. Alternatively, the terminal may determine the fourth information based solely on the chronological order of the MOs contained in the first search space set, or solely on the index of the candidate PDCCHs.

[0337] For example, the terminal can first determine the number or priority of the candidate PDCCH set based on the time order of the MOs, and then based on the index of the candidate PDCCHs. For example, the earlier the symbol of the MO appears, the smaller the symbol value, the lower the index of the MO set, and the higher the priority of the MO set. Then, within multiple candidate PDCCH sets, further numbering is performed according to the candidate PDCCH index. For example, sorting is done according to the index of the candidate PDCCH with the lowest candidate PDCCH index value in each candidate PDCCH set.

[0338] The terminal can also first number or determine the priority of the candidate PDCCH based on the candidate PDCCH index in the multiple candidate PDCCH sets, and then number or determine the priority based on the time order of MO, which is similar to the above method and will not be described in detail here.

[0339] The terminal may also determine the number or priority of the candidate PDCCH set based solely on the time order of the MO, or solely on the candidate PDCCH index; these details will not be elaborated further here.

[0340] Example 8: The terminal determines the fourth information based on the time order of MO and / or the value of AL contained in the first search space set.

[0341] The terminal may first determine the number or priority of the candidate PDCCH set based on the time order of MO and then based on the value of AL; or, the terminal may first determine the number or priority of the candidate PDCCH set based on the value of AL and then based on the time order of MO; or, the terminal may determine the number or priority of the candidate PDCCH set based solely on the time order of MO or solely on the value of AL.

[0342] The method by which the terminal determines the fourth information based on the time sequence of the MO is similar to that in Example 7, and the method by which the terminal determines the fourth information based on the value of AL is similar to that in Example 6, and will not be described in detail here.

[0343] Example 9: The terminal determines the fourth information according to the index number of the MO (the MO index needs to be defined) and / or the index of the candidate PDCCH.

[0344] The terminal can first determine the number or priority of the candidate PDCCH set based on the index of the MO and then based on the index of the candidate PDCCH; or the terminal can first determine the number or priority of the candidate PDCCH set based on the index of the candidate PDCCH and then based on the index of the MO; or the terminal can determine the number or priority of the candidate PDCCH set based only on the index number of the MO, or it can determine the number or priority of the candidate PDCCH set based only on the index of the candidate PDCCH.

[0345] The terminal can define the index of a MO based on its SS set and the order in which it appears. For example, MOs can be numbered according to the order in which they appear, starting with the SS set index. Figure 6 For example, the two MO indices of SS set 1 are 1 and 2, the two MO indices of SS set 2 are 3 and 4, the two MO indices of SS set 3 are 5 and 6, and the two MO indices of SS set 4 are 7 and 8; or the MOs can be numbered according to the SS set index following the time of their appearance. Figure 6 For example, the indices 1-8 of MO are as follows: Figure 9 As shown.

[0346] After defining the MO index, the terminal assigns a number to all MO sets using the MO with the smallest index value in each MO set. The lower the index value of the MO with the smallest index value, the lower the number of the MO set and the higher its priority.

[0347] The method for determining the fourth information according to the index of the candidate PDCCH is similar to that in Example 5, and will not be repeated here.

[0348] Example 10: The terminal determines the fourth information according to the index of MO (the MO index needs to be defined) and / or the value of AL.

[0349] The terminal can first determine the number or priority of the candidate PDCCH set based on the index of MO and then based on the value of AL; or the terminal can first determine the number or priority of the candidate PDCCH set based on the value of AL and then based on the index of MO; or the terminal can determine the number or priority of the candidate PDCCH set based only on the index of MO, or it can determine the fourth information based only on the value of AL.

[0350] Example 11: Determine the fourth information according to the MO set number or priority information (see Method 1, i.e., associated MO pairs) and / or the index of AL or candidate PDCCH.

[0351] The terminal first determines the number or priority of the candidate PDCCH set based on the MO set number or priority, and then based on the AL value or the candidate PDCCH index; or the terminal first determines the number or priority of the candidate PDCCH set based on the AL value or the candidate PDCCH index, and then based on the MO set number or priority.

[0352] Referring to Method 1, the terminal determines the second information (i.e., the number or priority information of all MO sets) contained in the first search space set. In this embodiment, the terminal can use any one of Examples 1-4 to determine the number or priority information of the MO sets. Then, based on the value of AL or the index of the candidate PDCCH, the number or priority of the candidate PDCCH set is further determined.

[0353] The above are merely exemplary implementations for determining the fourth information. In the embodiments of the present invention, the determination method is not limited to the example above, but can also be any combination of (a) to (f), which is similar to the above method and will not be described in detail here.

[0354] It should be noted that when the fourth piece of information is the priority information of the candidate PDCCH set, the priority information can also be in the form of a number. For example, the candidate PDCCH set can be numbered according to the priority from large to small or from small to large, or the candidate PDCCH set can be assigned a certain priority value.

[0355] Step C: Based on the fourth information, determine whether each set of candidate PDCCHs can be monitored; wherein, the target candidate PDCCHs include candidate PDCCHs in the set of candidate PDCCHs that can be monitored.

[0356] The terminal determines whether each candidate PDCCH set can be monitored based on the fourth information. If a candidate PDCCH set can be monitored, then all candidate PDCCHs contained in that candidate PDCCH set can be monitored.

[0357] Specifically, determining whether each candidate PDCCH set can be monitored based on the fourth information may include:

[0358] Based on the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be monitorable, it is determined whether the candidate PDCCH set can be monitored; wherein, according to the second order indicated by the fourth information, it is determined whether each candidate PDCCH set can be monitored.

[0359] The detection unit includes the following: candidate PDCCH; candidate PDCCH pair; blind detection complexity; MO.

[0360] Further, determining whether a candidate PDCCH set can be monitored is based on the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be monitorable, including the following:

[0361] (1) If the sum of the number of detection units in the candidate PDCCH set and the number of detection units that have been determined to be monitored is less than the third threshold, the candidate PDCCH set is determined to be monitorable.

[0362] Taking the detection unit as a candidate PDCCH as an example, if the sum of the number of candidate PDCCHs in the candidate PDCCH set and S1 (the number of candidate PDCCHs that have been determined to be monitorable) is less than S (i.e. the third threshold, which is the maximum number of candidate PDCCHs that the terminal can monitor), then the candidate PDCCH set can be monitored; otherwise, it cannot be monitored.

[0363] (2) If the number of detection units in the candidate PDCCH set is less than the difference between the fourth threshold and the number of detection units that have been determined to be monitored, the candidate PDCCH set is determined to be monitored.

[0364] Taking the detection unit as a candidate PDCCH as an example, if the number of candidate PDCCHs in the candidate PDCCH set is less than S-S1 (where S is the fourth threshold, which is the maximum number of candidate PDCCHs that the terminal can monitor; S1 is the number of candidate PDCCHs that have been determined to be monitorable), then the candidate PDCCH set can be monitored; otherwise, it cannot be monitored.

[0365] It should be noted that the terminal needs to determine whether each candidate PDCCH set can be monitored according to the second order indicated by the fourth information.

[0366] The second order includes one of the following:

[0367] The candidate PDCCH sets are numbered in ascending order;

[0368] The candidate PDCCH sets are ordered from highest to lowest priority.

[0369] The terminal performs the above judgment on each candidate PDCCH set in ascending order of candidate PDCCH set number or descending order of priority. If a candidate PDCCH set cannot be monitored, then candidate PDCCH sets with larger numbers or lower priorities cannot be monitored either. The second order indicated by the fourth information includes, but is not limited to, the above two, and can also be set to other orders according to monitoring requirements, such as: descending order of candidate PDCCH set numbers, ascending order of candidate PDCCH set priorities, etc.

[0370] The above example uses the detection unit as a candidate PDCCH to illustrate the specific method for determining whether the candidate PDCCH set can be monitored. It is worth noting that, in addition to judging based on the number of monitorable candidate PDCCHs, other units can also be used as the scale. For example, the number of monitorable candidate PDCCH pairs (e.g., 2 candidate PDCCHs), or the complexity of a single blind detection (2 monitorable candidate PDCCHs, or more than 1 but less than 2 monitorable candidate PDCCHs, or 3 monitorable candidate PDCCHs, etc.), or the monitorable MO set, the monitorable candidate PDCCH set, etc. The above scales can also be collectively referred to as detection units, and are similar to the method of using monitorable candidate PDCCHs as the scale, so they will not be elaborated here.

[0371] In this embodiment, a maximum detectable detection unit (T) and a pre-determined detectable detection unit (T1) are defined. The specific method for determining whether the candidate PDCCH set can be monitored is as follows:

[0372] If the sum of the number of detection units in the candidate PDCCH set and T1 is less than T, then the candidate PDCCH set can be monitored; otherwise, it cannot be monitored.

[0373] Alternatively, if the number of detection units in the candidate PDCCH set is less than T-T1, then the candidate PDCCH set can be monitored; otherwise, it cannot be monitored.

[0374] The terminal performs the above judgment on each candidate PDCCH set in ascending order of its set number or descending order of its priority. If a candidate PDCCH set cannot be monitored, then candidate PDCCH sets with a larger number or lower priority than that candidate PDCCH set cannot be monitored either.

[0375] Optionally, after determining whether each candidate PDCCH set can be monitored according to steps A to C above, the method further includes:

[0376] Step D: The terminal monitors the candidate PDCCHs in the set of candidate PDCCHs that can be monitored.

[0377] After determining the set of candidate PDCCHs that can be monitored, the terminal monitors all the candidate PDCCHs in the set of candidate PDCCHs that can be monitored, and then solves the corresponding PDCCHs.

[0378] In the second embodiment of the method, there may be a situation where some candidate PDCCHs in two SS sets are monitored, but neither SS set is fully monitored. This can ensure that the terminal can monitor multiple repeated transmissions of the same PDCCH, thereby improving the reliability of PDCCH transmission.

[0379] Method 1 and Method 2 described above are based on the example of PDCCH repeated transmission in a time unit. The following example illustrates how the terminal determines the target candidate PDCCH based on the target set when a time unit includes both PDCCH repeated transmission and single PDCCH transmission.

[0380] For scenario two: three methods are provided as examples.

[0381] When a time unit includes both repeated PDCCH transmissions and single PDCCH transmissions, the at least one second search space set has no associated search space set, and therefore can be used for single PDCCH transmissions. That is, the target candidate PDCCH can be determined through a single second search space set. The at least two associated first search space sets can be used for repeated PDCCH transmissions. For the method of determining the monitorable target candidate PDCCH based on the first search space set, see Method 1 and Method 2 in Scenario 1. For example, the terminal determines the target candidate PDCCH based on the MO set or based on the candidate PDCCH set; details are not elaborated here.

[0382] When a time unit contains both single PDCCH transmissions and repeated PDCCH transmissions, the number of monitorable candidate PDCCHs or monitorable detection units is calculated jointly from both single and repeated PDCCH transmissions. The monitorable target candidate PDCCHs corresponding to repeated PDCCH transmissions can be determined using methods similar to Method 1 or Method 2, which will not be elaborated upon here. Existing candidate PDCCH monitoring methods can be used to determine the monitorable target candidate PDCCHs for single PDCCH transmissions, or methods similar to those used for repeated PDCCH transmissions can be employed.

[0383] Method 3: Taking the determination of the target candidate PDCCH that can be monitored by combining single PDCCH transmission and repeated PDCCH transmission as an example, that is, the sum of the first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set and the second number of target candidate PDCCHs determined by the second search space set is less than or equal to the first detection threshold of the terminal for candidate PDCCHs.

[0384] It is worth noting that in the embodiments of the present invention, the detectable unit is used as the upper limit of the terminal PDCCH monitoring capability. The detectable unit includes the detectable candidate PDCCH in the existing mechanism, as well as other unit scales, such as the detectable candidate PDCCH pair (e.g., 2 candidate PDCCH), or blind detection complexity (2 detectable candidate PDCCH, or greater than 1 but less than 2 detectable candidate PDCCH, or 3 detectable candidate PDCCH, etc.), or the detectable MO set, the detectable candidate PDCCH set, etc.

[0385] Specifically, the terminal first determines the SS set in ascending order of its index, using the SS set as the unit. The specific determination method is as follows:

[0386] If an SS set is used only for a single PDCCH transmission, or for a single PDCCH transmission, the number of monitorable candidate PDCCHs or the number of monitorable detection units are determined according to the existing candidate PDCCH monitoring method; if an SS set is used only for repeated PDCCH transmissions, or for repeated PDCCH transmissions, the number of monitorable detection units is determined together with the SS set associated with it according to method one or method two.

[0387] Define a maximum detectable detection unit (T) and a detectable detection unit (T1) that has already been determined to be detectable:

[0388] If the sum of the number of detection units in the SS set and T1 is less than T, then the SS set can be monitored; otherwise, it cannot be monitored. Alternatively, if the number of detection units in the SS set is less than T-T1, then the SS set can be monitored; otherwise, it cannot be monitored.

[0389] The terminal performs the above checks on multiple SS sets one by one, in ascending order of their SS set indices. If two SS sets are related, the SS set with the smaller index value is used for the check. If an SS set cannot be monitored, then all SS sets with larger index values ​​than that SS set cannot be monitored.

[0390] Specifically, for example, SS set 1 and SS set 3 are associated for repeated PDCCH transmissions, while SS set 0 and SS set 2 are used for single PDCCH transmissions. First, it's determined whether SS set 0 can be monitored. If SS set 0 can be monitored, then T1 represents the scale, number, or complexity of the monitorable units contained in SS set 0. Then, SS set 1 is evaluated, as it's associated with SS set 3, so both SS sets need to be evaluated together. For example, using the MO set method to determine which MO sets can be monitored, first, it's determined that MO set 1 can be used for monitoring, where T1 represents the scale, number, or complexity of the monitorable units contained in SS set 0, and the scale, number, or complexity of the monitorable units contained in MO set 1 of SS set 1 and SS set 3. Then, it's determined whether MO set 2 of SS set 1 and SS set 3 can be monitored, and so on, until it's determined that the number of monitorable units is less than or equal to T.

[0391] Method 4: Taking the determination of the target candidate PDCCH that can be monitored by combining single PDCCH transmission and repeated PDCCH transmission as an example, that is, the sum of the first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set and the second number of target candidate PDCCHs determined by the second search space set is less than or equal to the first detection threshold of the terminal for candidate PDCCHs.

[0392] When a time unit contains both single PDCCH transmissions and repeated PDCCH transmissions, the number of monitorable candidate PDCCHs is calculated jointly from both single and repeated PDCCH transmissions. Method 1 or Method 2 can be used to calculate the number of monitorable candidate PDCCHs corresponding to repeated PDCCH transmissions, while a candidate PDCCH monitoring method with finer granularity, similar to Method 1 or Method 2, can be used to calculate the number of monitorable candidate PDCCHs for single PDCCH transmissions. (Candidate PDCCHs are determined on a per-MO set or candidate PDCCH set basis. For a single PDCCH transmission, the MO set contains one MO, and the candidate PDCCH set contains one or more candidate PDCCHs.)

[0393] As an optional embodiment, for a single PDCCH transmission, when determining the target candidate PDCCH based on the MO set contained in the search space set, the target candidate PDCCH may include one of the following:

[0394] a: Candidate PDCCHs contained in the MO set that can be monitored in the second search space set.

[0395] Similar to PDCCH retransmission, the terminal determines whether each MO set can be monitored, for example: determining first information of the MO sets contained in the second search space set; determining second information of all MO sets contained in the second search space set based on the first information; and determining whether each MO set can be monitored based on the second information.

[0396] The target candidate PDCCH includes candidate PDCCHs in the MO set that can be monitored.

[0397] b: Among the MO sets contained in the second search space set, the candidate PDCCHs with an aggregation level AL of the first value.

[0398] Within the MO set contained in the second search space set, the terminal determines the candidate PDCCH with AL as the first value as the target candidate PDCCH.

[0399] c: Candidate PDCCHs with index values ​​of the second value in the MO set contained in the second search space set.

[0400] Within the MO set contained in the second search space set, the terminal determines the candidate PDCCH with the index value of the second value as the target candidate PDCCH.

[0401] As an optional embodiment, for a single PDCCH transmission, when the terminal determines the target candidate PDCCH based on the candidate PDCCH set contained in the search space set, the target candidate PDCCH includes one of the following:

[0402] d: The candidate PDCCHs included in the candidate PDCCH set that can be monitored in the second search space set.

[0403] Similar to PDCCH retransmission, the terminal determines whether each candidate PDCCH set can be monitored. For example, it determines third information about the candidate PDCCH sets contained in the second search space set; based on the third information, it determines fourth information about all candidate PDCCH sets contained in the second search space set; and based on the fourth information, it determines whether each candidate PDCCH set can be monitored.

[0404] The target candidate PDCCH includes candidate PDCCHs from the set of candidate PDCCHs that can be monitored.

[0405] e: Among the candidate PDCCH sets contained in the second search space set, the candidate PDCCHs with an aggregation level AL of the third value.

[0406] In the candidate PDCCH set contained in the second search space set, the terminal determines the candidate PDCCH with AL as the third value as the target candidate PDCCH.

[0407] f: The candidate PDCCH with the fourth index value in the candidate PDCCH set contained in the second search space set.

[0408] In the candidate PDCCH set contained in the second search space set, the terminal determines the candidate PDCCH with the index value of the fourth value as the target candidate PDCCH.

[0409] Specifically, the terminal determines the measurable SS sets within a time unit. These measurable SS sets include SS sets used for single PDCCH transmissions and SS sets used for repeated PDCCH transmissions. The terminal then determines the MO sets or candidate PDCCH sets contained in each SS set or associated SS set pair. All MO sets or candidate PDCCH sets are numbered or prioritized. The terminal then judges the MO sets or candidate PDCCH sets in ascending order or in descending order of priority, using the MO sets or candidate PDCCH sets as units. The specific judgment method is as follows:

[0410] If the sum of the number of detection units in the MO set or candidate PDCCH set and T1 is less than T, then the MO set or candidate PDCCH set can be monitored; otherwise, it cannot be monitored.

[0411] Alternatively, if the number of detection units in the MO set or candidate PDCCH set is less than T-T1, then the MO set or candidate PDCCH set can be monitored; otherwise, it cannot be monitored.

[0412] The terminal performs the above judgment on each MO set or candidate PDCCH set in ascending order of its number or in descending order of its priority. If a certain MO set or candidate PDCCH set cannot be monitored, then all MO sets or candidate PDCCH sets with a larger number or lower priority than that MO set or candidate PDCCH set cannot be monitored.

[0413] If an SS set is used only for a single PDCCH transmission, or is used only for a single PDCCH transmission, then an MO set contains one MO, or a candidate PDCCH set contains one candidate PDCCH, or a group of candidate PDCCHs with AL values ​​of a specific value, or a group of candidate PDCCHs with candidate PDCCH indices of a specific value, etc. If an SS set is used only for repeated PDCCH transmissions, or is used only for repeated PDCCH transmissions, then the SS set and its associated SS set together determine the MO set or the candidate PDCCH set.

[0414] Method 5: Taking the determination of the target candidate PDCCH that can be monitored for single PDCCH transmission and repeated PDCCH transmission as an example, that is, the first number of target candidate PDCCHs determined according to the MO set or candidate PDCCH set contained in the first search space set is less than or equal to the second detection threshold of the terminal for candidate PDCCH; the second number of target candidate PDCCHs determined according to the second search space set is less than or equal to the third detection threshold of the terminal for candidate PDCCH.

[0415] In this embodiment, when a time unit includes both single PDCCH transmissions and repeated PDCCH transmissions, the number of candidate PDCCHs that can be monitored is calculated for each single and repeated PDCCH transmission. The number of candidate PDCCHs or the number of detection units that can be monitored are determined separately for single and repeated PDCCH transmissions; these determination processes can be performed independently.

[0416] For example, an SS set for a single PDCCH transmission is formed. Within this set, existing candidate PDCCH monitoring methods or smaller-granularity candidate PDCCH monitoring methods similar to Method 1 or Method 2 are used to calculate the candidate PDCCHs or detection units that can be monitored during a single PDCCH transmission. If a smaller-granularity candidate PDCCH monitoring method similar to Method 1 or Method 2 is used (see Method 4), an SS set is used only for a single PDCCH transmission, or for a single PDCCH transmission, then an MO set contains one MO, or a candidate PDCCH set contains one candidate PDCCH, or an AL set is a group of candidate PDCCHs with a specific value, or a candidate PDCCH index is a group of candidate PDCCHs with a specific value, etc.

[0417] In addition, a set of SS sets for PDCCH repetitive transmissions is formed, and the target candidate PDCCH or the detection unit that can be monitored is determined using method one or method two or existing rules in the set.

[0418] The detection units that can be monitored for a single PDCCH transmission and repeated PDCCH transmissions can be different. For example, for a single PDCCH transmission, the detection units that can be monitored are the candidate PDCCHs that can be monitored. For repeated PDCCH transmissions, the detection units that can be monitored are the candidate PDCCH pairs (e.g., 2 candidate PDCCHs), or the blind detection complexity (2 candidate PDCCHs that can be monitored, or more than 1 but less than 2 candidate PDCCHs that can be monitored, or 3 candidate PDCCHs that can be monitored, etc.), or the set of MOs that can be monitored, the set of candidate PDCCHs that can be monitored, etc.

[0419] For scenario three: two methods are provided as examples.

[0420] Dynamic signaling indicates to the terminal the dynamic switching between repeated PDCCH transmissions and single PDCCH transmissions within a time unit. This dynamic signaling can be sent by network-side devices.

[0421] Method 6: The terminal first determines the candidate PDCCHs that can be monitored. If the terminal can determine that some candidate PDCCHs among the monitorable candidate PDCCHs are not transmitted, then the candidate PDCCHs that are not transmitted can be removed from the monitorable candidate PDCCHs.

[0422] Specifically, the method further includes: determining a first PDCCH among the target candidate PDCCHs, wherein the first PDCCH is a candidate PDCCH that will not be transmitted;

[0423] The monitoring of the target candidate PDCCH includes: monitoring the candidate PDCCHs other than the first PDCCH among the target candidate PDCCHs.

[0424] In this embodiment, the terminal can first determine the candidate PDCCHs that can be monitored according to Method 1 or Method 2 or an existing candidate PDCCH monitoring method. If the terminal can determine that some of the configured candidate PDCCHs will not be transmitted (e.g., receiving dynamic signaling indications), then the monitoring of these candidate PDCCHs can be skipped. That is, these candidate PDCCHs are directly removed from the determined set of monitorable candidate PDCCHs. In this case, the number of monitorable candidate PDCCHs will be less than the terminal's monitoring capability.

[0425] For example, the network-side equipment configures the terminal to receive PDCCH repetitive transmissions and single PDCCH transmissions within a time unit via Radio Resource Control (RRC) signaling. For instance, SS set 1 and SS set 2 are used for PDCCH repetitive transmissions, and SS set 3 is used for single PDCCH transmissions. Furthermore, the terminal can use dynamic signaling to instruct it to perform PDCCH transmissions only on SS set 1 in a certain time slot, meaning that PDCCH repetitive transmissions are dynamically switched to single PDCCH transmissions. Then, the terminal can first determine the candidate PDCCHs or detection units that can be monitored according to methods one through five, and then remove the candidate PDCCHs included in SS set 2 from the monitorable candidate PDCCHs, meaning that the candidate PDCCHs included in SS set 2 are not monitored.

[0426] It should be noted that although the terminal can use scales other than the monitorable candidate PDCCHs when determining which candidate PDCCHs can be monitored, such as the detectable detection units, the final determination of which candidate PDCCHs can be monitored is still based on a certain scale. Therefore, in this embodiment, after determining the monitorable candidate PDCCHs based on RRC signaling, the terminal directly removes the candidate PDCCHs corresponding to the SS set that will not be transmitted in a certain time unit.

[0427] Method 7: The terminal first determines the candidate PDCCHs that will not be transmitted. When determining the target candidate PDCCHs that can be monitored based on the target set, the terminal does not judge or skips the candidate PDCCHs that will not be transmitted, and continues to determine whether other candidate PDCCHs can be monitored.

[0428] Specifically, the method further includes: determining a second PDCCH contained in the search space set, wherein the second PDCCH is a candidate PDCCH that will not be transmitted;

[0429] The step of determining the target candidate PDCCH based on the target set may include: determining the target candidate PDCCH from among the candidate PDCCHs other than the second PDCCH based on the target set.

[0430] In this embodiment, if the terminal can determine that some of the configured candidate PDCCHs will not be transmitted (e.g., receiving dynamic signaling indications), then during the process of determining the target candidate PDCCHs that can be monitored (using Method 1, Method 2, or existing candidate PDCCH monitoring methods), the monitoring of the non-transmitting candidate PDCCH is skipped, and other candidate PDCCHs are continued to be determined for monitoring until the terminal's maximum detection capability is reached. Compared to Method 6, this embodiment can further monitor other candidate PDCCHs with relatively lower priority.

[0431] Specifically, the terminal first determines which SS sets can be used for PDCCH transmission in a time unit based on dynamic signaling. For example, RRC signaling configures SS sets 1 and SS sets 2 for repeated PDCCH transmission, and SS sets 3, SS sets 5, and SS sets 6 for single PDCCH transmission. Furthermore, dynamic signaling can be used to instruct the terminal to perform PDCCH transmission only on SS set 1 in a certain time unit, that is, the repeated PDCCH transmission is dynamically switched to single PDCCH transmission. Then the terminal can determine that the SS sets available for PDCCH transmission in that time slot are SS set 1, SS set 3, SS set 5, and SS set 6. At this point, the terminal can determine the monitorable candidate PDCCHs according to existing rules.

[0432] For example, RRC signaling configures SS set 1 and SS set 2 for repeated PDCCH transmissions, SS set 3 and SS set 5 for repeated PDCCH transmissions, and SS set 4 and SS set 6 for single PDCCH transmissions. Furthermore, dynamic signaling can be used to instruct the terminal to perform PDCCH transmissions only on SS set 1 in a certain time slot, and not on SS set 2. Then the terminal can determine that the SS sets available for PDCCH transmission in that time slot are SS set 1, SS set 3, SS set 4, SS set 5, and SS set 6. In this case, a time slot contains both single PDCCH transmissions (SS sets 1, 4, and 6) and repeated PDCCH transmissions (SS sets 3 and SS sets 5). Therefore, the terminal can determine the target candidate PDCCH to be monitored according to the embodiments of methods one to five.

[0433] Method Eight:

[0434] As an optional embodiment, the terminal can also determine the transmission mode of the SS set based on dynamic signaling, and then determine which candidate PDCCHs can be monitored according to methods one through seven. For example, the network-side device configures the terminal to associate three SS sets (e.g., SS sets 1, 2, and 3), and then indicates through dynamic signaling that two of the SS sets (e.g., SS sets 1 and 2) are actually associated, that is, the two actually associated SS sets are used for repeated PDCCH transmission, while SS set 3 is not used for transmission. Then the terminal can determine the candidate PDCCHs that can be monitored according to method six or method seven. In addition, the terminal can also determine that SS set 3 is used for a single PDCCH transmission, and then the terminal can determine the candidate PDCCHs that can be monitored according to method three, method four, or method five.

[0435] For example, if a network-side device configures two SS sets (e.g., SS set 1 and 2) for a terminal to be associated, and then indicates or activates one of the SS sets (e.g., SS set 1) through dynamic signaling, the terminal can determine that SS set 2 will not be transmitted, and the terminal can determine the candidate PDCCH that can be monitored according to method six or method seven. Furthermore, the terminal can also determine that SS set 2 is used for a single PDCCH transmission, and the terminal can determine the candidate PDCCH that can be monitored according to method three, method four, or method five.

[0436] As an optional embodiment, the control channel monitoring method further includes: determining the target set based on the terminal's decoding capability or second indication information from the network-side device; wherein the second indication information indicates the number of decoding units used by the terminal for decoding.

[0437] Specifically, determining the target set may include:

[0438] If the number of decoding units used by the terminal decoding is less than the third number, the target set is determined to be any one of the following: the search space set, the MO set contained in the search space set, and the candidate PDCCH set contained in the search space set.

[0439] In this embodiment, the terminal can determine the target set based on its decoding capability or the second indication information from the network-side device, and then determine the target candidate PDCCH based on the target set. Optionally, the network-side device can instruct the terminal to use the number of decoding units during decoding through the second indication information. For example, the network-side device instructs the terminal to use a decoding method with fewer than a third number of decoding units. The decoding capability can be determined by the terminal itself, and the decoding capability can indicate the number of decoding units that the terminal can adapt to during decoding. For example, the terminal reports its decoding capability as fewer than a third number of decoding units.

[0440] When the number of decoding units used by the terminal is less than the third number, in this embodiment of the application, the terminal determines the target set as any one of the search space set, the MO set contained in the search space set, and the candidate PDCCH set contained in the search space set. Optionally, when the number of decoding units used by the terminal is greater than or equal to the third number, the target candidate PDCCH is determined on a per-search space set basis, that is, the target set is determined as the search space set.

[0441] The following specific embodiments illustrate the detailed implementation process of determining the target set based on the terminal's decoding capability or the second indication information from the network-side device.

[0442] Taking the terminal reporting its own decoding capabilities as an example. Assuming the third quantity is 2, when using PDCCH repeated transmission, the terminal will report its decoding capabilities. For example, the terminal reports that the decoding complexity required to detect two associated candidate PDCCHs (pairs) is X decoding units, where one decoding unit is the decoding complexity when the terminal detects a single candidate PDCCH. X can be 2, 3, or a value less than the third quantity (e.g., 2), and this value can be an integer or a non-integer, such as 1 or 1.5. When the terminal reports a decoding complexity of X decoding units, the network-side device can determine that the terminal can use a decoding algorithm corresponding to X decoding units, or a decoding algorithm corresponding to fewer decoding units than X. For example, if the terminal reports X = 3, it means that the terminal supports decoding algorithms requiring 3 decoding units, as well as decoding algorithms requiring 2 or 1.5 decoding units.

[0443] Taking the number of decoding units used by the network-side device when instructing the terminal to perform decoding via the second indication information as an example, after the terminal reports its decoding capability, the network-side device can also use higher-layer signaling to configure the terminal to use a decoding complexity of Y decoding units or complexity units when detecting two associated candidate PDCCHs (pairs), where Y is less than or equal to X. Upon receiving the configuration from the network-side device, the terminal can use a decoding algorithm corresponding to a decoding complexity of Y decoding units to decode the associated PDCCHs (pairs), or it can use a decoding algorithm corresponding to a decoding complexity less than Y decoding units. The decoding algorithms used by the terminal can be shown in Table 1.

[0444] Table 1

[0445]

[0446] In Table 1 above, soft-merging decoding can be the merging of soft information, using methods such as maximum ratio merging or direct merging. This embodiment of the invention does not impose any restrictions on this.

[0447] If the network-side device instructs the terminal to have a decoding complexity of Y=3, the terminal can use either the enhanced decoding algorithm 2, or algorithms such as soft-merging decoding or independent decoding. It should be noted that the maximum number of detectable candidate PDCCH pairs is always determined according to the configured Y. For example, with a 15kHz subcarrier spacing, the terminal can detect a maximum of 44 candidate PDCCH pairs (44 decoding units). If Y=2, the terminal can detect a maximum of 22 candidate PDCCH pairs. If the terminal uses a lower-complexity decoding algorithm, such as soft-merging with a decoding complexity of 1.5 units, the terminal can either still detect 22 candidate PDCCH pairs or increase the number of candidate PDCCH pairs it can detect based on its capabilities, for example, detecting 44-15 (i.e., 29) candidate PDCCH pairs.

[0448] Optionally, during PDCCH retransmission, the network-side device may not configure a corresponding Y value, but only determines the corresponding decoding algorithm based on the X value reported by the terminal. For example, when X=2, it means that the terminal can use a decoding algorithm with a decoding complexity unit of 2 or less.

[0449] In this embodiment, assuming the third quantity is 2, regardless of the decoding method used, the network-side device determines the number of detectable candidate PDCCH (pairs) based on the X or Y value. When using soft-merging decoding, i.e., when X or Y is less than or equal to 2, the terminal needs to determine the target candidate PDCCH based on the associated SS set set, the associated MO set, or the search space set. Under this decoding method, the two candidate PDCCHs always need to be decoded together. In other decoding scenarios, other methods can also be used to determine the target candidate PDCCH, for example, determining the target candidate PDCCH on a per-SS set basis (non-associated SS sets).

[0450] Accordingly, when the network-side device configures the terminal to use a decoding method with fewer than X1 decoding units, or when the terminal reports its decoding capability as using a decoding method with fewer than Y1 decoding units, the terminal determines the target candidate PDCCH based on the associated SS set, the associated MO set, or the search space set. Otherwise, the target candidate PDCCH can be determined using the SS set as the unit. The values ​​of X1 and Y1 can be 2, or other configured or predefined values ​​related to soft-merging decoding.

[0451] After the terminal determines that the target set is one of the search space set, the MO set contained in the search space set, and the candidate PDCCH set contained in the search space set, it determines the target candidate PDCCH based on the target set.

[0452] Specifically, the terminal can consider all candidate PDCCHs on at least two associated SS sets, or all candidate PDCCHs on associated MOs, or all candidate PDCCHs on associated candidate PDCCH sets as a set, and determine whether this set is monitored. If the set can be monitored, then all candidate PDCCHs in the set can be monitored; otherwise, all candidate PDCCHs cannot be monitored. The monitorable candidate PDCCHs are the target candidate PDCCHs. The process of determining the target candidate PDCCH is not detailed here.

[0453] In embodiments of the present invention, when there are repeated PDCCH transmissions, simultaneous single PDCCH transmissions and repeated PDCCH transmissions within the same time unit, or dynamic switching between repeated and single PDCCH transmissions, the monitorable target candidate PDCCH is determined based on the MO set, the candidate PDCCH set, or a set formed by multiple search space sets. The terminal determines the monitorable candidate PDCCHs with finer granularity, ensuring that multiple repeated PDCCH transmissions can be detected even when repeated transmissions are involved, thus guaranteeing the reliability of PDCCH transmission.

[0454] The above embodiments describe the positioning method of the present invention. The following embodiments will further describe the corresponding devices in conjunction with the accompanying drawings.

[0455] Specifically, such as Figure 10 As shown, the control channel monitoring device 1000 of this embodiment of the invention is applied to a terminal and includes:

[0456] The first determining unit 1010 is used to determine a target candidate PDCCH based on a target set, wherein the target set includes one of the following: a search space set, a set of monitoring opportunities (MO) included in the search space set, and a set of candidate downlink control channels (PDCCH) included in the search space set.

[0457] Monitoring unit 1020 is used to monitor the target candidate PDCCH;

[0458] The target candidate PDCCH is a detection unit that can be monitored.

[0459] Optionally, the search space set includes at least two associated first search space sets within a time unit.

[0460] Optionally, the search space set includes: at least two associated first search space sets within a time unit, and at least one second search space set;

[0461] Wherein, the sum of the first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set and the second number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the second search space set is less than or equal to the first detection threshold of the terminal for candidate PDCCHs.

[0462] or

[0463] The first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set is less than or equal to the second detection threshold of the terminal for candidate PDCCHs; the second number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the second search space set is less than or equal to the third detection threshold of the terminal for candidate PDCCHs.

[0464] Optionally, the device further includes:

[0465] The receiving unit is used to receive the first indication information;

[0466] Wherein, the first indication information is used to indicate that: in the first time unit, the terminal performs PDCCH transmission on one of the at least two associated search space sets; or, in the first time unit, the terminal performs PDCCH transmission on two of the at least two associated search space sets.

[0467] Optionally, the device further includes:

[0468] The second determining unit is used to determine first information of the MO sets contained in the first search space set, the first information including: the MOs contained in each MO set and the candidate PDCCHs contained in the MO sets;

[0469] The third determining unit is configured to determine, based on the first information, second information of all MO sets contained in the first search space set, wherein the second information includes: the number of the MO set or the priority information of the MO set;

[0470] The fourth determining unit is used to determine, based on the second information, whether each of the MO sets can be monitored;

[0471] The target candidate PDCCH includes candidate PDCCHs in the MO set that can be monitored.

[0472] Optionally, the method for determining the second information includes at least one of the following:

[0473] Determined based on the index of the first search space set;

[0474] Determined according to the time sequence of the MO;

[0475] Determined based on the number of candidate PDCCHs contained in the MO set;

[0476] Determined based on the index number of the MO set.

[0477] Optionally, the fourth determining unit is specifically used for:

[0478] Whether a set of MOs can be monitored is determined based on the number of detection units in each set of MOs and the number of detection units that have been determined to be monitorable.

[0479] Specifically, in accordance with the first order indicated by the second information, it is determined whether each of the MO sets can be monitored.

[0480] Optionally, the detection unit includes one of the following:

[0481] Candidate PDCCH;

[0482] Candidate PDCCH pairs;

[0483] Blind detection complexity;

[0484] MO.

[0485] Optionally, the fourth determining unit is specifically used for:

[0486] If the sum of the number of detection units in the MO set and the number of detection units that have been determined to be monitorable is less than a first threshold, then the MO set is determined to be monitorable.

[0487] or

[0488] If the number of detection units in the MO set is less than the difference between the second threshold and the number of detection units that have been determined to be monitorable, then the MO set is determined to be monitorable.

[0489] Optionally, the first order includes one of the following:

[0490] The MO sets are numbered in ascending order;

[0491] The MO sets are ordered from highest to lowest priority.

[0492] Optionally, the device further includes:

[0493] The fifth determining unit is used to determine the third information of the candidate PDCCH sets contained in the first search space set, the third information including: the PDCCHs contained in each candidate PDCCH set;

[0494] The sixth determining unit is used to determine the fourth information of all candidate PDCCH sets contained in the first search space set based on the third information. The fourth information includes: the number of the candidate PDCCH set or the priority information of the candidate PDCCH set.

[0495] The seventh determining unit is used to determine, based on the fourth information, whether each candidate PDCCH set can be monitored;

[0496] The target candidate PDCCH includes candidate PDCCHs from the set of candidate PDCCHs that can be monitored.

[0497] Optionally, the method for determining the fourth information includes at least one of the following:

[0498] Determined based on the index of the first search space set;

[0499] Determined based on the index of the candidate PDCCH contained in the candidate PDCCH set;

[0500] Determined based on the aggregation level AL value of the candidate PDCCH;

[0501] Determined based on the temporal order of the MOs contained in the first search space set;

[0502] Determined based on the index number of the MO contained in the first search space set;

[0503] The number is determined based on the MO set number contained in the first search space set.

[0504] Optionally, the seventh determining unit is specifically used for:

[0505] Whether a candidate PDCCH set can be monitored is determined based on the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be monitorable.

[0506] Specifically, in accordance with the second order indicated by the fourth information, it is determined whether each candidate PDCCH set can be monitored.

[0507] Optionally, the detection unit includes one of the following:

[0508] Candidate PDCCH;

[0509] Candidate PDCCH pairs;

[0510] Blind detection complexity;

[0511] MO.

[0512] Optionally, the seventh determining unit is specifically used for:

[0513] If the sum of the number of detection units in the candidate PDCCH set and the number of detection units that have been determined to be monitorable is less than the third threshold, it is determined that the candidate PDCCH set can be monitored.

[0514] or

[0515] If the number of detection units in the candidate PDCCH set is less than the difference between the fourth threshold and the number of detection units that have been determined to be monitorable, then the candidate PDCCH set is determined to be monitorable.

[0516] Optionally, the second order includes one of the following:

[0517] The candidate PDCCH sets are numbered in ascending order;

[0518] The candidate PDCCH sets are ordered from highest to lowest priority.

[0519] Optionally, when determining the target candidate PDCCH based on the MO set contained in the search space set, the target candidate PDCCH includes one of the following:

[0520] The candidate PDCCHs contained in the MO set that can be monitored in the second search space set;

[0521] In the MO set included in the second search space set, there are candidate PDCCHs with an aggregation level AL of the first value;

[0522] The second search space set contains the MO set, which contains candidate PDCCHs with an index value of the second value.

[0523] Optionally, when determining the target candidate PDCCH based on the set of candidate PDCCHs contained in the search space set, the target candidate PDCCH includes one of the following:

[0524] The candidate PDCCHs included in the candidate PDCCH set that can be monitored in the second search space set;

[0525] The second search space set includes candidate PDCCHs with an aggregation level AL of the third value.

[0526] The candidate PDCCH with the fourth index value is included in the second search space set.

[0527] Optionally, the device further includes:

[0528] The eighth determining unit is used to determine the first PDCCH among the target candidate PDCCHs, wherein the first PDCCH is a candidate PDCCH that will not be transmitted.

[0529] The monitoring unit is specifically used to monitor candidate PDCCHs other than the first PDCCH among the target candidate PDCCHs.

[0530] Optionally, the device further includes:

[0531] The ninth determining unit is used to determine the second PDCCH contained in the search space set, wherein the second PDCCH is a candidate PDCCH that will not be transmitted;

[0532] The first determining unit is specifically used for:

[0533] Based on the target set, the target candidate PDCCH is determined from the candidate PDCCHs other than the second PDCCH.

[0534] Optionally, the target set includes at least two associated search space sets;

[0535] The first determining unit is specifically used for:

[0536] The target candidate PDCCH is determined based on the index values ​​of the at least two associated search space sets.

[0537] Optionally, the device further includes:

[0538] The tenth determining unit is used to determine the target set based on the decoding capability of the terminal or the second indication information of the network-side device;

[0539] The second indication information indicates the number of decoding units used by the terminal for decoding.

[0540] Optionally, the tenth determining unit is specifically used for:

[0541] If the number of decoding units used by the terminal decoding is less than the third number, the target set is determined to be any one of the following: the search space set, the MO set contained in the search space set, and the candidate PDCCH set contained in the search space set.

[0542] In embodiments of the present invention, the terminal determines the target candidate PDCCH that can be monitored based on the granularity of the set formed by the search space set, the MO set, or the candidate PDCCH set, and monitors the target candidate PDCCH. This ensures that multiple repeated transmissions of PDCCH can be detected, including repeated transmissions of PDCCH, thereby ensuring the transmission reliability of PDCCH.

[0543] It should be noted that the apparatus provided in this embodiment of the invention can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0544] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0545] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or 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.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0546] like Figure 11 As shown, an embodiment of the present invention also provides a control channel monitoring device applied to a terminal, including: a memory 1120, a transceiver 1100, and a processor 1110;

[0547] Memory 1120 is used to store computer programs; transceiver 1100 is used to send and receive data under the control of the processor; processor 1110 is used to read the computer programs in the memory and perform the following operations:

[0548] The target candidate PDCCH is determined based on the target set, which includes one of the following: a search space set, a set of monitoring opportunities (MO) included in the search space set, and a set of candidate downlink control channels (PDCCH) included in the search space set;

[0549] Monitor the target candidate PDCCH;

[0550] The target candidate PDCCH is a detection unit that can be monitored.

[0551] Optionally, the search space set includes at least two associated first search space sets within a time unit.

[0552] Optionally, the search space set includes: at least two associated first search space sets within a time unit, and at least one second search space set;

[0553] Wherein, the sum of the first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set and the second number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the second search space set is less than or equal to the first detection threshold of the terminal for candidate PDCCHs.

[0554] or

[0555] The first number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the first search space set is less than or equal to the second detection threshold of the terminal for candidate PDCCHs; the second number of target candidate PDCCHs determined by the MO set or candidate PDCCH set contained in the second search space set is less than or equal to the third detection threshold of the terminal for candidate PDCCHs.

[0556] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0557] Receive the first instruction message;

[0558] Wherein, the first indication information is used to indicate that: in the first time unit, the terminal performs PDCCH transmission on one of the at least two associated search space sets; or, in the first time unit, the terminal performs PDCCH transmission on two of the at least two associated search space sets.

[0559] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0560] First information is determined about the MO sets contained in the first search space set. The first information includes: the MOs contained in each MO set and the candidate PDCCHs contained in the MO sets.

[0561] Based on the first information, determine the second information of all MO sets included in the first search space set, the second information including: the number of the MO set or the priority information of the MO set;

[0562] Based on the second information, determine whether each of the MO sets can be monitored;

[0563] The target candidate PDCCH includes candidate PDCCHs in the MO set that can be monitored.

[0564] Optionally, the method for determining the second information includes at least one of the following:

[0565] Determined based on the index of the first search space set;

[0566] Determined according to the time sequence of the MO;

[0567] Determined based on the number of candidate PDCCHs contained in the MO set;

[0568] Determined based on the index number of the MO set.

[0569] Optionally, determining whether each of the MO sets can be monitored based on the second information includes:

[0570] Whether a set of MOs can be monitored is determined based on the number of detection units in each set of MOs and the number of detection units that have been determined to be monitorable.

[0571] Specifically, in accordance with the first order indicated by the second information, it is determined whether each of the MO sets can be monitored.

[0572] Optionally, the detection unit includes one of the following:

[0573] Candidate PDCCH;

[0574] Candidate PDCCH pairs;

[0575] Blind detection complexity;

[0576] MO.

[0577] Optionally, determining whether an MO set can be monitored is based on the number of detection units in each MO set and the number of detection units that have been determined to be monitorable, including:

[0578] If the sum of the number of detection units in the MO set and the number of detection units that have been determined to be monitorable is less than a first threshold, then the MO set is determined to be monitorable.

[0579] or

[0580] If the number of detection units in the MO set is less than the difference between the second threshold and the number of detection units that have been determined to be monitorable, then the MO set is determined to be monitorable.

[0581] Optionally, the first order includes one of the following:

[0582] The MO sets are numbered in ascending order;

[0583] The MO sets are ordered from highest to lowest priority.

[0584] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0585] The third information for determining the candidate PDCCH sets contained in the first search space set includes: the PDCCHs contained in each candidate PDCCH set;

[0586] Based on the third information, fourth information is determined for all candidate PDCCH sets included in the first search space set. The fourth information includes: the number of the candidate PDCCH set or the priority information of the candidate PDCCH set.

[0587] Based on the fourth information, it is determined whether each candidate PDCCH set can be monitored;

[0588] The target candidate PDCCH includes candidate PDCCHs from the set of candidate PDCCHs that can be monitored.

[0589] Optionally, the method for determining the fourth information includes at least one of the following:

[0590] Determined based on the index of the first search space set;

[0591] Determined based on the index of the candidate PDCCH contained in the candidate PDCCH set;

[0592] Determined based on the aggregation level AL value of the candidate PDCCH;

[0593] Determined based on the temporal order of the MOs contained in the first search space set;

[0594] Determined based on the index number of the MO contained in the first search space set;

[0595] The number is determined based on the MO set number contained in the first search space set.

[0596] Optionally, determining whether each candidate PDCCH set can be monitored based on the fourth information includes:

[0597] Whether a candidate PDCCH set can be monitored is determined based on the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be monitorable.

[0598] Specifically, in accordance with the second order indicated by the fourth information, it is determined whether each candidate PDCCH set can be monitored.

[0599] Optionally, the detection unit includes one of the following:

[0600] Candidate PDCCH;

[0601] Candidate PDCCH pairs;

[0602] Blind detection complexity;

[0603] MO.

[0604] Optionally, determining whether a candidate PDCCH set can be monitored based on the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be monitorable includes:

[0605] If the sum of the number of detection units in the candidate PDCCH set and the number of detection units that have been determined to be monitorable is less than the third threshold, it is determined that the candidate PDCCH set can be monitored.

[0606] or

[0607] If the number of detection units in the candidate PDCCH set is less than the difference between the fourth threshold and the number of detection units that have been determined to be monitorable, then the candidate PDCCH set is determined to be monitorable.

[0608] Optionally, the second order includes one of the following:

[0609] The candidate PDCCH sets are numbered in ascending order;

[0610] The candidate PDCCH sets are ordered from highest to lowest priority.

[0611] Optionally, when determining the target candidate PDCCH based on the MO set contained in the search space set, the target candidate PDCCH includes one of the following:

[0612] The candidate PDCCHs contained in the MO set that can be monitored in the second search space set;

[0613] In the MO set included in the second search space set, there are candidate PDCCHs with an aggregation level AL of the first value;

[0614] The second search space set contains the MO set, which contains candidate PDCCHs with an index value of the second value.

[0615] Optionally, when determining the target candidate PDCCH based on the set of candidate PDCCHs contained in the search space set, the target candidate PDCCH includes one of the following:

[0616] The candidate PDCCHs included in the candidate PDCCH set that can be monitored in the second search space set;

[0617] The second search space set includes candidate PDCCHs with an aggregation level AL of the third value.

[0618] The candidate PDCCH with the fourth index value is included in the second search space set.

[0619] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0620] Determine the first PDCCH among the target candidate PDCCHs, where the first PDCCH is a candidate PDCCH that will not be transmitted;

[0621] The monitoring of the target candidate PDCCH includes:

[0622] The candidate PDCCHs other than the first PDCCH in the target candidate PDCCH are monitored.

[0623] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0624] Determine a second PDCCH contained in the search space set, wherein the second PDCCH is a candidate PDCCH that will not be transmitted;

[0625] Based on the target set, candidate PDCCHs are determined, including:

[0626] Based on the target set, the target candidate PDCCH is determined from the candidate PDCCHs other than the second PDCCH.

[0627] Optionally, the target set includes at least two associated search space sets;

[0628] The step of determining the target candidate PDCCH based on the target set includes:

[0629] The target candidate PDCCH is determined based on the index values ​​of the at least two associated search space sets.

[0630] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0631] The target set is determined based on the terminal's decoding capability or the second indication information from the network-side device;

[0632] The second indication information indicates the number of decoding units used by the terminal for decoding.

[0633] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0634] If the number of decoding units used by the terminal decoding is less than the third number, the target set is determined to be any one of the following: the search space set, the MO set contained in the search space set, and the candidate PDCCH set contained in the search space set.

[0635] It should be noted that, in Figure 11 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 1110) and memory (memory 1120). The bus architecture can also link various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 1100 can be multiple components, including transmitters and transceivers, providing a unit for communicating with various other devices over a transmission medium. For different terminals, user interface 1130 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc. Processor 1110 is responsible for managing the bus architecture and general processing, and memory 1120 can store data used by processor 1110 during operation.

[0636] Optionally, the processor 1110 can be a CPU (Central Processing Unit), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), or CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.

[0637] The processor executes any of the methods described in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in memory. The processor and memory may also be physically separated.

[0638] It should be noted that the control channel monitoring device provided in this embodiment of the invention can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0639] In addition, a specific embodiment of the present invention also provides a processor-readable storage medium storing a computer program thereon, wherein the program, when executed by a processor, implements the steps of the control channel monitoring method described above. This achieves the same technical effect, and to avoid repetition, will not be described again here. The readable storage medium can be any available medium or data storage device accessible to the processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs), etc.).

[0640] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0641] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0642] These processor-executable instructions may also be stored in a processor-readable memory that can instruct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more blocks of a block diagram.

[0643] These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of a block diagram.

[0644] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A control channel monitoring method, characterized by, The method comprises: A terminal determines target candidate PDCCHs according to a target set, the target set comprising one of a search space set, a monitoring occasion (MO) set contained in the search space set, and a candidate PDCCH set contained in the search space set; The terminal monitors the target candidate PDCCHs; The target candidate PDCCHs are detection units that can be monitored. The search space set comprises at least two associated first search space sets in a time unit, and at least one second search space set; The sum of a first number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the first search space set, and a second number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the second search space set, is less than or equal to a first detection threshold of the terminal for the candidate PDCCHs; Or The first number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the first search space set is less than or equal to a second detection threshold of the terminal for the candidate PDCCHs; and the second number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the second search space set is less than or equal to a third detection threshold of the terminal for the candidate PDCCHs.

2. The method of claim 1, wherein, The method further comprises: Receiving first indication information; The first indication information is used to indicate that, in a first time unit, the terminal performs PDCCH transmission on one of the at least two associated search space sets, or in the first time unit, the terminal performs PDCCH transmission on two of the at least two associated search space sets.

3. The method of claim 1, wherein, Before determining the target candidate PDCCHs according to the target set, the method further comprises: Determining first information of the MO set contained in the first search space set, the first information comprising an MO contained in each MO set and a candidate PDCCH contained in the MO set; According to the first information, determining second information of all the MO sets contained in the first search space set, the second information comprising a number of the MO sets or priority information of the MO sets; According to the second information, respectively determining whether each MO set can be monitored; The target candidate PDCCHs comprise candidate PDCCHs in the MO sets that can be monitored.

4. The method of claim 3, wherein, The determination manner of the second information comprises at least one of the following: According to an index of the first search space set; According to a time sequence of the MOs; According to a number of candidate PDCCHs contained in the MO set; According to an index number of the MO set.

5. The method of claim 3, wherein, The determination of whether each MO set can be monitored according to the second information comprises: According to a number of detection units in each MO set and a number of detection units that have been determined to be able to be monitored, determining whether the MO set can be monitored; The method further comprises: determining, according to the second information, whether each MO set can be monitored in a first order indicated by the second information.

6. The method of claim 5, wherein, The detection unit comprises one of: A candidate PDCCH; A candidate PDCCH pair; Blind detection complexity; An MO.

7. The method of claim 5, wherein, The method further comprises: determining, according to the fourth information, whether each candidate PDCCH set can be monitored. The determination of whether each candidate PDCCH set can be monitored according to the fourth information comprises: Determining, according to the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be able to be monitored, whether the candidate PDCCH set can be monitored; Wherein, whether each MO set can be monitored is determined in a second order indicated by the fourth information.

8. The method of claim 5, wherein, The detection unit comprises one of: A candidate PDCCH; A candidate PDCCH pair; 9. The method of claim 1, wherein, Blind detection complexity; An MO. The method further comprises: determining, according to the fourth information, whether each candidate PDCCH set can be monitored. The determination of whether each candidate PDCCH set can be monitored according to the fourth information comprises: Determining, according to the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be able to be monitored, whether the candidate PDCCH set can be monitored; 10. The method of claim 9, wherein, Wherein, whether each MO set can be monitored is determined in a second order indicated by the fourth information. The detection unit comprises one of: A candidate PDCCH; A candidate PDCCH pair; Blind detection complexity; An MO. The method further comprises: determining, according to the fourth information, whether each candidate PDCCH set can be monitored.

11. The method of claim 9, wherein, The determination of whether each candidate PDCCH set can be monitored according to the fourth information comprises: Determining, according to the number of detection units in each candidate PDCCH set and the number of detection units that have been determined to be able to be monitored, whether the candidate PDCCH set can be monitored; ​ 12. The method of claim 11, wherein, ​ ​ ​ ​ ​ 13. The method of claim 11, wherein, ​ If the number of detection units in the candidate PDCCH set is less than the third threshold value and the sum of the number of detection units that have been determined to be monitored, the candidate PDCCH set is determined to be monitored. Or If the number of detection units in the candidate PDCCH set is less than the fourth threshold value and the difference between the number of detection units that have been determined to be monitored, the candidate PDCCH set is determined to be monitored.

14. The method of claim 11, wherein, The second order includes one of the following: The number of the candidate PDCCH set in ascending order; The priority of the candidate PDCCH set in descending order.

15. The method of claim 1, wherein, When determining the target candidate PDCCH according to the MO set contained in the search space set, the target candidate PDCCH includes one of the following: The candidate PDCCH contained in the MO set that can be monitored in the second search space set; The candidate PDCCH with the first value of the aggregation level AL in the MO set contained in the second search space set; The candidate PDCCH with the second value of the index in the MO set contained in the second search space set.

16. The method of claim 1, wherein, When determining the target candidate PDCCH according to the candidate PDCCH set contained in the search space set, the target candidate PDCCH includes one of the following: The candidate PDCCH contained in the candidate PDCCH set that can be monitored in the second search space set; The candidate PDCCH with the third value of the aggregation level AL in the candidate PDCCH set contained in the second search space set; The candidate PDCCH with the fourth value of the index in the candidate PDCCH set contained in the second search space set.

17. The method of claim 2, wherein, The method further includes: Determining a first PDCCH in the target candidate PDCCH, the first PDCCH being a candidate PDCCH that does not perform transmission; The monitoring of the target candidate PDCCH includes: Monitoring the candidate PDCCH in the target candidate PDCCH except the first PDCCH.

18. The method of claim 2, wherein, The method further includes: Determining a second PDCCH contained in the search space set, the second PDCCH being a candidate PDCCH that does not perform transmission; The determining of the target candidate PDCCH according to the target set includes: According to the target set, determining the target candidate PDCCH from the candidate PDCCH except the second PDCCH.

19. The method of claim 1, wherein, The target set includes at least two associated search space sets; The determining of the target candidate PDCCH according to the target set includes: Determining the target candidate PDCCH according to the index value of the at least two associated search space sets.

20. The method of claim 1, wherein, The method further includes: Determining the target set according to the decoding capability of the terminal or the second indication information of the network side device; Wherein, the second indication information indicates the number of decoding units used by the terminal decoding.

21. The method of claim 20, wherein, The determining of the target set includes: In a case where a number of coding units used in terminal decoding is less than a third number, the target set is determined as any one of the search space set, a MO set contained in the search space set, and a candidate PDCCH set contained in the search space set.

22. An apparatus for controlling channel monitoring, the apparatus comprising: Comprise: Memory, transceiver, processor: Memory, for storing computer programs; Transceiver, for transceiving data under the control of the processor; Processor, for reading computer programs in the memory and performing the following operations: Determine a target candidate PDCCH according to a target set, the target set comprising one of a search space set, a monitoring occasion MO set contained in the search space set, and a candidate downlink control channel PDCCH set contained in the search space set; Monitoring the target candidate PDCCH; Wherein, the target candidate PDCCH is a detection unit that can be monitored; The search space set comprises at least two associated first search space sets within one time unit, and at least one second search space set; Wherein, the sum of a first number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the first search space set, and a second number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the second search space set, is less than or equal to a first detection threshold of the terminal for candidate PDCCHs; Or The first number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the first search space set is less than or equal to a second detection threshold of the terminal for candidate PDCCHs; the second number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the second search space set is less than or equal to a third detection threshold of the terminal for candidate PDCCHs.

23. The apparatus of claim 22, wherein, The processor is configured to read the computer programs in the memory and perform the following operations: Receive first indication information; Wherein, the first indication information is used to indicate that, in a first time unit, the terminal performs PDCCH transmission on one search space set in the at least two associated search space sets; or, in a first time unit, the terminal performs PDCCH transmission on two search space sets in the at least two associated search space sets.

24. The apparatus of claim 22, wherein, The processor is configured to read the computer programs in the memory and perform the following operations: Determine first information of the MO set contained in the first search space set, the first information comprising MOs contained in each MO set and candidate PDCCHs contained in the MO set; According to the first information, determine second information of all MO sets contained in the first search space set, the second information comprising the number of the MO set or the priority information of the MO set; According to the second information, respectively determine whether each MO set can be monitored; Wherein, the target candidate PDCCH comprises candidate PDCCHs in the MO set that can be monitored.

25. The apparatus of claim 24, wherein, The determination manner of the second information comprises at least one of the following: Determination according to the index of the first search space set; Determination according to the time sequence of the MOs; Determination according to the number of candidate PDCCHs contained in the MO set; Determination according to the index number of the MO set.

26. The apparatus of claim 22, wherein, The processor is configured to read the computer program in the memory and perform the following operations: Determination of third information of a candidate PDCCH set contained in the first search space set, wherein the third information comprises PDCCHs contained in each candidate PDCCH set; According to the third information, determination of fourth information of all candidate PDCCH sets contained in the first search space set, wherein the fourth information comprises index numbers of the candidate PDCCH sets or priority information of the candidate PDCCH sets; According to the fourth information, determination of whether each candidate PDCCH set can be monitored respectively; The target candidate PDCCH comprises a candidate PDCCH in the candidate PDCCH set that can be monitored.

27. The apparatus of claim 26, wherein, The determination manner of the fourth information comprises at least one of the following: Determination according to the index of the first search space set; Determination according to the index of the candidate PDCCHs contained in the candidate PDCCH set; Determination according to the value of the aggregation level AL of the candidate PDCCH; Determination according to the time sequence of the MOs contained in the first search space set; Determination according to the index number of the MOs contained in the first search space set; Determination according to the number of the MO sets contained in the first search space set.

28. The apparatus of claim 22, wherein, When the target candidate PDCCH is determined according to the MO set contained in the search space set, the target candidate PDCCH comprises one of the following: A candidate PDCCH contained in a MO set that can be monitored in the second search space set; A candidate PDCCH with a first value of the aggregation level AL in the MO set contained in the second search space set; A candidate PDCCH with a second value of the index in the MO set contained in the second search space set.

29. The apparatus of claim 22, wherein, When the target candidate PDCCH is determined according to the candidate PDCCH set contained in the search space set, the target candidate PDCCH comprises one of the following: A candidate PDCCH contained in a candidate PDCCH set that can be monitored in the second search space set; A candidate PDCCH with a third value of the aggregation level AL in the candidate PDCCH set contained in the second search space set; A candidate PDCCH with a fourth value of the index in the candidate PDCCH set contained in the second search space set.

30. The apparatus of claim 23, wherein, The processor is configured to read the computer program in the memory and perform the following operations: Determination of a first PDCCH in the target candidate PDCCH, wherein the first PDCCH is a candidate PDCCH without transmission; The monitoring of the target candidate PDCCH comprises: Monitoring of candidate PDCCHs in the target candidate PDCCH except the first PDCCH.

31. The apparatus of claim 23, wherein, The processor is configured to read the computer program in the memory and perform the following operations: determining a second PDCCH contained in the search space set, the second PDCCH being a non-transmitted candidate PDCCH; determining a target candidate PDCCH according to a target set, comprising: determining the target candidate PDCCH from the candidate PDCCHs other than the second PDCCH according to the target set.

32. The apparatus of claim 22, wherein, The target set comprises at least two associated search space sets; The determining a target candidate PDCCH according to a target set comprises: determining a target candidate PDCCH according to an index value of the at least two associated search space sets.

33. The apparatus of claim 22, wherein, The processor is configured to read the computer program in the memory and perform the following operations: determining the target set according to a coding capability of the terminal or second indication information of the network side device; The second indication information indicates a number of coding units used by the terminal for coding.

34. The apparatus of claim 33, wherein, The processor is configured to read the computer program in the memory and perform the following operations: in a case where the number of coding units used by the terminal for coding is less than a third number, determining the target set as any one of the search space set, a MO set contained in the search space set, and a candidate PDCCH set contained in the search space set.

35. An apparatus for controlling channel monitoring, the apparatus comprising: comprising: a first determining unit configured to determine a target candidate PDCCH according to a target set, the target set comprising one of a search space set, a MO set contained in the search space set, and a candidate PDCCH set contained in the search space set; a monitoring unit configured to monitor the target candidate PDCCH; The target candidate PDCCH is a detection unit that can be monitored. The search space set comprises at least two associated first search space sets in one time unit, and at least one second search space set; The sum of a first number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the first search space set and a second number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the second search space set is less than or equal to a first detection threshold of the terminal for the candidate PDCCHs. Or The first number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the first search space set is less than or equal to a second detection threshold of the terminal for the candidate PDCCHs; and the second number of target candidate PDCCHs determined according to the MO set or the candidate PDCCH set contained in the second search space set is less than or equal to a third detection threshold of the terminal for the candidate PDCCHs.

36. A processor-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the control channel monitoring method according to any one of claims 1 to 21.

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