PDCCH monitoring method and device, terminal, network side equipment and readable storage medium

Abstract

The present application discloses a PDCCH monitoring method, a terminal, and a network-side device, which belong to the field of wireless communication technology. The PDCCH monitoring method of an embodiment of the present application includes: the terminal obtains first configuration information, wherein the first configuration information is used to configure the association relationship between a first CSS set and a first search space group; the terminal determines the PDCCH monitoring behavior on the first CSS set based on the first configuration information; wherein the first CSS set includes at least one of Type 0 CSS set, Type0A CSS set, Type1 CSS set, and Type2 CSS set.

Description

Technical Field

[0001] The present application belongs to the field of wireless communication technology, and specifically relates to a PDCCH monitoring method, a terminal, and a network-side device. Background Art

[0002] In the 5G New Radio Access Technology (NR) standardization discussions, user equipment (UE) needs to monitor downlink control information (DCI) in various formats. The UE can detect DCI sent by network devices in search spaces (SS) configured by the network through blind detection.

[0003] However, since the UE needs to monitor the Physical Downlink Control Channel (PDCCH) on a CSS set such as a Type 0 Common Search Space set (CSS set) all the time, it causes a large terminal power consumption. Summary of the Invention

[0004] The embodiments of the present application provide a PDCCH monitoring method, terminal, and network-side device, which can solve the problem of high terminal power consumption caused by the UE needing to always monitor PDCCH on CSS sets such as Type0 CSS set, Type0A CSS set, and Type2 CSS set.

[0005] In a first aspect, a PDCCH monitoring method is provided, including: a terminal obtains first configuration information, wherein the first configuration information is used to configure an association relationship between a first CSS set and a first search space group; the terminal determines a PDCCH monitoring behavior on the first CSS set based on the first configuration information; wherein the first CSS set includes at least one of Type 0CSS set, Type0A CSS set, Type1 CSS set, and Type2 CSS set.

[0006] In a second aspect, a PDCCH monitoring method is provided, which includes a network side device sending first configuration information; wherein, the first configuration information is used to configure the association relationship between the first common search space set CSS set and the first search space group, and the first configuration information is used by the terminal to determine the physical downlink control channel PDCCH monitoring behavior on the first CSS set; the first CSS set includes at least one of a common search space set Type 0CSSset, a common search space set Type0A CSS set, a common search space set Type 1CSS set, and a common search space set Type 2 CSS set.

[0007] In a third aspect, a PDCCH monitoring device is provided, including: an acquisition module for acquiring first configuration information, wherein the first configuration information is used to configure the association relationship between the first common search space set CSS set and the first search space group; a determination module for determining the physical downlink control channel PDCCH monitoring behavior on the first CSS set based on the first configuration information; wherein the first CSS set includes at least one of the common search space sets of type 0 Type0CSS set, Type0A CSS set, Type1 CSS set, and Type2 CSS set.

[0008] In a fourth aspect, a PDCCH monitoring device is provided, including: a sending module for sending first configuration information; wherein, the first configuration information is used to configure the association relationship between the first common search space set CSS set and the first search space group, and the first configuration information is used by the terminal to determine the physical downlink control channel PDCCH monitoring behavior on the first CSS set; the first CSS set includes at least one of a common search space set Type 0CSS set, a common search space set Type0A CSS set, a common search space set Type1 CSS set, and a common search space set Type2 CSS set.

[0009] In a fifth aspect, a terminal is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0010] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.

[0011] In the seventh aspect, a network side device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and runnable on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0012] In an eighth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the method described in the second aspect.

[0013] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0014] In the tenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect.

[0015] In an eleventh aspect, a computer program product / program product is provided, wherein the computer program / program product is stored in a non-volatile storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect.

[0016] In an embodiment of the present application, the terminal obtains first configuration information for configuring the association relationship between the first CSS set and the first search space group, and determines the PDCCH monitoring behavior based on the first configuration information. This can avoid the problem that the terminal needs to always monitor the PDCCH on the first CSS set, thereby reducing the terminal power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a wireless communication system provided by an exemplary embodiment of the present application.

[0018] Figure 2 It is a flowchart of a PDCCH monitoring method provided by an exemplary embodiment of the present application.

[0019] Figure 3 It is a flowchart of a PDCCH monitoring method provided by another exemplary embodiment of the present application.

[0020] Figure 4It is a flowchart of a PDCCH monitoring method provided by another exemplary embodiment of the present application.

[0021] Figure 5 It is a structural diagram of a PDCCH monitoring device provided by an exemplary embodiment of the present application.

[0022] Figure 6 It is a structural diagram of a PDCCH monitoring device provided by another exemplary embodiment of the present application.

[0023] Figure 7 It is a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application.

[0024] Figure 8 It is a structural diagram of a network device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0026] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0027] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

[0028] Figure 1The following is a schematic diagram showing the structure of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a game console, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (home appliance with wireless communication function, such as a refrigerator, TV, washing machine or furniture, etc.), and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0029] The technical solutions provided by the embodiments of the present application are described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0030] For ease of understanding, here is a brief introduction to the type 0 common search space set Type0 CSS set (i.e., Type0-PDCCH CSS set), type 0A common search space set Type0A CSS set (i.e., Type0A-PDCCH CSS set), type 1 common search space set Type1 CSS set (i.e., Type1-PDCCH CSS set), and type 2 common search space set Type2 CSS set (i.e., Type1-PDCCH CSS set) mentioned in this application.

[0031] (1) Type0-PDCCH CSS set, configured by "pdcchConfigSIB1" in the Master Information Block (MIB) or "searchSpaceSIB1" in PDCCH-ConfigCommon or "searchSpaceZero" in PDCCH-ConfigCommon, is used to detect the DCI format scrambled by the System Information-Radio Network Temporary Identifier (SI-RNTI) (for SIB1), which is sent on the primary cell in the Master cell group (MCG).

[0032] (2) Type0A-PDCCH CSS set, configured by "searchSpaceOtherSystemInformation" in PDCCH-ConfigCommon, is used to detect the DCI format scrambled by SI-RNTI (for other SI), and the DCI is sent on the primary cell in the MCG.

[0033] (3) Type 1-PDCCH CSS set, configured by "ra-SearchSpace" in PDCCH-ConfigCommon, is used to detect the DCI format scrambled by Random Access (RA)-RNTI (for RAR) or Temporary Cell (TC)-RNTI (for Msg4) or Message (Msg) B-RNTI, which is sent in the primary cell.

[0034] (4) Type2-PDCCH CSS set, configured by "pagingSearchSpace" in PDCCH-ConfigCommon, is used to detect the DCI format scrambled by the paging (P)-RNTI (for paging), which is sent on the primary cell in the MCG.

[0035] In addition, on the above-mentioned Type 0CSS set, Type 0A CSS set, Type 1CSS set, and Type 2CSS set, the network side can send DCI scrambled by RNTI related to scheduling data (for example, cell C-RNTI). Therefore, in addition to listening to the above-mentioned DCI scrambled by P-RNTI, SI-RNTI, etc. on Type 0CSS set, Type 0A CSS set, Type 1CSS set, and Type 2CSS set, the terminal also needs to listen to the DCI scrambled by RNTI related to scheduling data.

[0036] like Figure 2 FIG. 2 is a flow chart of a PDCCH monitoring method 200 provided in an exemplary embodiment of the present application. The method 200 may be, but is not limited to, executed by a terminal, and may specifically be executed by hardware and / or software installed in the terminal. In this embodiment, the method 200 may include at least the following steps.

[0037] S210: The terminal obtains first configuration information.

[0038] Among them, the first configuration information is used to configure the linkage between the first CSS set and the first search space group. For example, the first configuration information may include the number or index information of the first search space group associated with the first CSS set, whether there is a linkage between the first CSS set and the first search space group, type information of the first CSS set, information on whether the first CSS set can be associated with the first search space group, information on which first search space groups the first CSS set can be associated with, time information for associating the first CSS set with the first search space group, whether to turn on or activate the linkage between the first CSS set and the first search space group, etc., and there is no restriction here.

[0039] It can be understood that the first CSS set described in this application can be understood as any common search space set or common search space, and the first search space group can be understood as a search space group configured by the network side or specified by the protocol or configured by high-layer signaling, so as to determine whether to monitor the PDCCH in the CSS set associated with the search space group by whether to activate the search space group or whether to switch to the search space group. Optionally, the first search space group described in this application can be empty or can include at least one search space set or search space.

[0040] In this embodiment, the first configuration information can be configured through network side configuration, protocol agreement, or high-layer signaling (such as Radio Resource Control (RRC) signaling). For example, it can be agreed through protocol that at least one of Type0CSS set, Type0A CSS set, Type1 CSS set, and Type2 CSS set can be associated with the first search space group, etc.

[0041] Of course, the purpose of configuring the association relationship between the first CSS set and the first search space group through the first configuration information in this embodiment is: the terminal can determine the PDCCH monitoring behavior according to whether the first search space group is activated or whether it is currently switched to the first search space group, such as whether it is necessary to monitor PDCCH or specific DCI on the first CSS set associated with the first search space group, thereby avoiding the problem of not being able to skip PDCCH monitoring by switching the search space group because the first CSS set does not belong to any search space group, so that the terminal does not need to monitor PDCCH on the first CSS set all the time, effectively reducing the power consumption of the terminal and achieving the purpose of power saving.

[0042] In this case, the first configuration information provided in this embodiment may include at least one of the following (1) to (2).

[0043] (1) The number information of the first search space group associated with the first CSS set.

[0044] The numbering information may also be understood as index information or identification information, etc. In this embodiment, the numbering information of the first search space group may be 0, 1, 2, etc., which are used to represent search space group #0, search space group #1, and search space group #2, respectively, and is not limited here.

[0045] (2) Information on whether the first CSS set can be associated with the first search space group. “Can” can also be understood as “whether it is possible”, “whether it is supported”, etc.

[0046] In addition, (2) can be understood as: whether the first CSS set can be associated with the first search space group.

[0047] In one implementation, the following can also be selected as a default configuration through network-side configuration or protocol agreement: (1) the first CSS set can be associated with the first search space group, or (2) the first CSS set cannot be associated with the first search space group. For example, when the network side does not configure this parameter (referring to whether the first CSS set can be associated with the first search space group), that is, when this parameter is default, the default configuration is to allow at least one of the Type (Type) 0 CSS set, Type 0A CSS set, Type 1 CSS set, and Type 2 CSS set to be associated with the first search space group, that is, by default, the first CSS set can be associated with the first search space group.

[0048] In this embodiment, there may be multiple first CSS sets, such as the first CSS set including at least one of a Type 0 CSS set, a Type 0A CSS set, a Type 1 CSS set, and a Type 2 CSS set. Accordingly, there may be multiple first search space groups, such as search space group #0 and search space group #1. For example, search space group #0 is associated with a search space for a sparse PDCCH listening period; search space group #1 is associated with a search space for a dense PDCCH listening period.

[0049] Based on this, as an implementation method, if the first CSS set includes multiple CSS sets, each of the multiple CSS sets can be associated with a different search space group or the same search space group, or each of the multiple CSS sets can be associated with a different search space group or the same multiple search space groups. For example, if the first CSS set includes a Type 1 CSS set and a Type 2 CSS set, then the Type 1 CSS set is associated with search space group 0, and the Type 2 CSS set is associated with search space group 1, or alternatively, the Type 1 CSS set and the Type 2 CSS set are associated with search space group 0, etc.

[0050] S220: The terminal determines a PDCCH monitoring behavior on the first CSS set according to the first configuration information.

[0051] The PDCCH monitoring behavior on the first CSS set may also be understood as: the PDCCH monitoring behavior at the PDCCH monitoring occasion (Monitoring Occasion, MO) corresponding to the first CSS set.

[0052] In this embodiment, the terminal determines the PDCCH monitoring behavior on the first CSS set according to the first configuration information, thereby solving the problem that the terminal needs to always monitor the PDCCH on the first CSS set and reducing the power consumption of the terminal.

[0053] like Figure 3 FIG. 1 is a flow chart of a PDCCH monitoring method 300 provided in an exemplary embodiment of the present application. The method may be, but is not limited to, executed by a terminal, and specifically may be executed by hardware and / or software installed in the terminal. In this embodiment, the method 300 may include at least the following steps.

[0054] S310: The terminal obtains first configuration information.

[0055] The first configuration information is used to configure an association relationship between the first CSS set and the first search space group.

[0056] It should be noted that, in addition to referring to the relevant description in method embodiment 200 for the implementation of S310, as a possible implementation in this embodiment, the first search space group may be a non-sleep search space group; wherein, the non-sleep search space group is a search space group other than the sleep search space group, the sleep search space group is not associated with any search space, or the terminal does not monitor the new transmission PDCCH on the sleep search space group. The new transmission PDCCH may also be called the initial transmission PDCCH. The new transmission PDCCH is relative to the retransmission PDCCH and may refer to the first transmission of multiple PDCCH transmissions.

[0057] In other words, the non-sleep search space group can be associated with one or more search spaces, or the terminal can monitor the newly transmitted PDCCH on the non-sleep search space group. For example, in this embodiment, the non-sleep search space group can be search space group #1 and / or search space group #0.

[0058] S320: The terminal determines a PDCCH monitoring behavior on the first CSS set according to the first configuration information.

[0059] It should be noted that in addition to referring to the relevant description in method embodiment 200, the implementation method of S320 may also include different PDCCH monitoring behaviors of the terminal on the first CSS set depending on the first configuration information. For example, in this embodiment, as a possible implementation method, the terminal may determine the step of PDCCH monitoring behaviors on the first CSS set based on the first configuration information, which may include at least one of the following (1) to (6).

[0060] (1) When the first CSS set is associated with the first search space group and the first search space group is in an inactive state, the terminal does not monitor the DCI scrambled by the first RNTI on the first CSS set.

[0061] The first RNTI may include at least one of a cell (Cell, C)-RNTI, a modulation and coding scheme (Modulation and coding scheme, MCS)-CRNTI, and a configured scheduling (Configured Scheduling, CS)-RNTI.

[0062] Furthermore, in one implementation, when the first CSS set is associated with the first search space group and the first search space group is in an inactive state, on the first CSS set, the terminal does not monitor DCI scrambled by the first RNTI, but still needs to monitor DCI scrambled by the second RNTI. The second RNTI may include at least one of SI-RNTI, RA-RNTI, MsgB-RNTI, TC-RNTI, and P-RNTI.

[0063] Through the above implementation method, unnecessary power consumption caused by the terminal listening to the DCI encrypted by the first RNTI (i.e., the DCI encrypted by the RNTI related to the scheduling data) on the first CSS set can be reduced, while at the same time, the PDCCH monitoring of the DCI encrypted by the first RNTI will not be skipped, which means that the reception and detection performance of paging messages, system messages, and random access is guaranteed.

[0064] For example, assuming that the protocol stipulates that Type 0 CSS set, Type 0A CSS set, Type 1 CSS set, and Type 2 CSS set can be associated with a non-dormant search space group (i.e., the first search space group), the network side configures the search space group number (SSS group ID, SSSG ID) associated with Type 0 CSS set, Type 0A CSS set, and Type 2 CSS set to be 0; and the network side configures the group ID associated with Type 1 CSS set to be 1. When SSSG 1 (search space group 1) is activated, that is, when SSSG0 is not activated, the terminal does not need to monitor the DCI format 1-0 and 0-0 scrambled by C-RNTI, MCS-C-RNTI and CS-RNTI on the PDCCH MO corresponding to Type 0CSS set, Type 0A CSS set, and Type 2CSS set, but only needs to monitor the SI-RNTI scrambled DCI (corresponding to Type 0CSS set, Type 0A CSS set) and P-RNTI scrambled DCI (corresponding to type 2CSS set) on the respective PDCCH MO corresponding to Type 0CSS set, Type 0A CSS set, and Type 2CSS set.

[0065] In addition, according to existing protocol agreements, when a terminal is in an RRC connected state, it can monitor the SI-RNTI-scrambled DCI at least once on any paging occasion (PO) within a system message modification period. That is, the terminal only needs to monitor the SI-RNTI-scrambled DCI once to receive the SI update indication. Therefore, through the PDCCH monitoring method provided in this application, when the Type 0 CSS set, Type 0A CSS set, and Type 2 CSS set are associated with SSSG0 and SSSG0 is not activated, the terminal saves the power consumption wasted by monitoring the DCI formats 1-0 and 0-0 scrambled by C-RNTI, MCS-C-RNTI, and CS-RNTI, thereby further achieving energy saving.

[0066] (2) When the first CSS set is associated with the first search space group and the first search space group is in an activated state, the terminal monitors DCI scrambled by the first RNTI and / or the second RNTI on the first CSS set.

[0067] Optionally, the first RNTI may include at least one of C-RNTI, MCS-CRNTI, and CS-RNTI; the second RNTI may include at least one of SI-RNTI, RA-RNTI, MsgB-RNTI, TC-RNTI, and P-RNTI.

[0068] For example, assume that the protocol stipulates that Type 0CSS set, Type 0A CSS set, Type 1 CSS set, and Type 2 CSS set can be associated with a non-dormant search space group (i.e., the first search space group). The network side configures the search space group number (SSS group ID, SSSG ID) associated with Type 0CSS set, Type 0A CSS set, and Type 2CSS set to be 0; the network side configures the group ID associated with Type 1CSS set to be 1. When SSSG 1 (search space group 1) is activated, that is, when SSSG0 is not activated, the terminal monitors the DCI format 1-0 and 0-0 scrambled by C-RNTI, MCS-C-RNTI, and CS-RNTI on the PDCCH MO corresponding to the type 1 CSS set, and / or the terminal monitors the DCI scrambled by RA-RNTI on the PDCCH MO corresponding to the type 1 CSS set.

[0069] (3) When the first CSS set is associated with the first search space group and the first search space group is in an activated state, the terminal does not monitor the DCI scrambled by the first RNTI on the first CSS set.

[0070] The first RNTI may include at least one of C-RNTI, MCS-CRNTI, and CS-RNTI.

[0071] For example, assuming that the protocol stipulates that Type 0CSS set, Type0A CSS set, Type1 CSS set, and Type2 CSS set can be associated with a non-dormant search space group (i.e., the first search space group). The network side configures the search space group number (SSS group ID, SSSG ID) associated with Type 0CSS set, Type0A CSS set, and Type 2CSS set to be 0; the network side configures the group ID associated with Type 1CSS set to be 1. When SSSG 1 (search space group 1) is activated, that is, when SSSG0 is not activated, the terminal does not monitor DCI format 1-0 and 0-0 scrambled by C-RNTI, MCS-C-RNTI, and CS-RNTI on the PDCCH MO corresponding to the type 1 CSS set.

[0072] (4) When the first CSS set is associated with the first search space group and the first search space group is in an inactive state, the terminal does not monitor the PDCCH on the first CSS set.

[0073] The fact that the terminal does not monitor the PDCCH can be understood as: the terminal does not monitor the DCI scrambled by any RNTI.

[0074] For example, assume that the protocol stipulates that Type 0 CSS set, Type 0A CSS set, Type 1 CSS set, and Type 2 CSS set can be associated with a non-dormant search space group (i.e., the first search space group). The network side configures the search space group number (SSS group ID, SSSG ID) associated with Type 0 CSS set, Type 0A CSS set, and Type 2 CSS set to be 0; the network side configures the group ID associated with Type 1 CSS set to be 1. When SSSG0 is in an inactive state, the terminal does not need to monitor DCI formats 1-0 and 0-0 scrambled by C-RNTI, MCS-C-RNTI, and CS-RNTI on Type 0 CSS set, Type 0A CSS set, and Type 2 CSS set, nor does it need to monitor DCI scrambled by P-RNTI and SI-RNTI; that is, it does not need to monitor any PDCCH on the PDCCH corresponding to the CSS set, thereby further achieving energy saving.

[0075] (5) In a case where the first CSS set cannot be associated with the first search space group, the terminal monitors the DCI scrambled by the first RNTI and / or the second RNTI on the first CSS set.

[0076] The first RNTI may include at least one of C-RNTI, MCS-CRNTI, and CS-RNTI. The second RNTI may include at least one of SI-RNTI, RA-RNTI, MsgB-RNTI, TC-RNTI, and P-RNTI.

[0077] For example, assuming that the protocol stipulates that Type1 CSS set cannot be associated with a non-dormant search space group (i.e., the first search space group), then the terminal monitors the DCI format 1-0 and 0-0 scrambled by C-RNTI, MCS-C-RNTI, and CS-RNTI on the PDCCH MO corresponding to the type1 CSS set, and / or the terminal monitors the DCI scrambled by SI-RNTI, RA-RNTI, MsgB-RNTI, TC-RNTI, and P-RNTI on the PDCCH MO corresponding to the Type1 CSS set.

[0078] (6) When the first CSS set cannot be associated with the first search space group, the terminal does not monitor the DCI scrambled by the first RNTI on the first CSS set.

[0079] The first RNTI may include at least one of C-RNTI, MCS-CRNTI, and CS-RNTI.

[0080] For example, assuming that the protocol stipulates that Type1 CSS set cannot be associated with a non-dormant search space group (i.e., the first search space group), then the terminal does not monitor DCI format 1-0 and 0-0 scrambled by C-RNTI, MCS-C-RNTI, and CS-RNTI on the PDCCH MO corresponding to the type1 CSS set.

[0081] It should be noted that, in this embodiment, the PDCCH monitoring behavior determined by the terminal based on the first configuration information may include but is not limited to one or more of the aforementioned (1) to (6), which is not limited here.

[0082] In addition, the first CSS set is configured by higher-layer signaling to monitor DCI scrambled by its corresponding second RNTI. For example, a Type 0 CSS set or a Type 0A CSS set is configured by higher-layer signaling to monitor DCI scrambled by SI-RNTI; a Type 1 CSS set is configured by higher-layer signaling to monitor DCI scrambled by RA-RNTI, MsgB-RNTI, or TC-RNTI; and a Type 2 CSS set is configured by higher-layer signaling to monitor DCI scrambled by P-RNTI.

[0083] In this embodiment, the terminal determines the PDCCH monitoring behavior on the first CSS set and the above-mentioned specific steps based on the first configuration information, so as to avoid unnecessary power consumption caused by the terminal monitoring the DCI encrypted by the first RNTI on the first CSS set, and save the terminal power consumption without affecting the reception and detection performance of paging messages, system messages, and random access.

[0084] like Figure 4 FIG. 4 is a flow chart of a PDCCH monitoring method 400 provided in an exemplary embodiment of the present application. The method 400 may be, but is not limited to, executed by a network-side device, and specifically may be executed by hardware and / or software installed in the network-side device. In this embodiment, the method 400 may include at least the following steps.

[0085] S410: The network-side device sends first configuration information.

[0086] The first configuration information is used to configure the association relationship between the first CSS set and the first search space group, and the first configuration information is used to determine the PDCCH monitoring behavior on the first CSS set; the first CSS set includes at least one of Type 0CSS set, Type0A CSS set, Type1 CSS set, and Type2 CSS set.

[0087] In a possible implementation, the first configuration information includes at least one of the following: number information of the first search space group associated with the first CSS set; and information on whether the first CSS set can be associated with the first search space group.

[0088] In another possible implementation, the first search space group is a non-sleep search space group; wherein, the non-sleep search space group is a search space group other than the sleep search space group, the sleep search space group is not associated with any search space, or the terminal does not monitor the newly transmitted PDCCH on the sleep search space group.

[0089] It can be understood that the specific implementation process of each implementation method in the method embodiment 400 can refer to the relevant description in the method embodiments 200 and / or 300. To avoid repetition, it will not be repeated here.

[0090] In this embodiment, the network side device sends the first configuration information, so that the terminal can determine the PDCCH monitoring behavior on the first CSS set according to the first configuration information. This solves the problem that the terminal needs to always monitor the PDCCH on the first CSS set, thereby reducing the terminal power consumption.

[0091] It should be noted that the PDCCH monitoring methods 200, 300, and 400 provided in the embodiments of the present application may be executed by a PDCCH monitoring device, or a control module in the PDCCH monitoring device for executing the PDCCH monitoring methods 200, 300, and 400. In the embodiments of the present application, the PDCCH monitoring device executing the PDCCH monitoring methods 200, 300, and 400 is taken as an example to illustrate the PDCCH monitoring device provided in the embodiments of the present application.

[0092] like Figure 5 As shown, it is a structural diagram of a PDCCH monitoring device 500 provided by an exemplary embodiment of the present application, the device 500 includes an acquisition module 510, used to obtain first configuration information, wherein the first configuration information is used to configure the association relationship between the first common search space set CSS set and the first search space group; a determination module 520, used to determine the physical downlink control channel PDCCH monitoring behavior on the first CSS set according to the first configuration information; wherein the first CSS set includes at least one of Type 0CSS set, Type0A CSS set, Type1 CSS set, and Type2 CSS set.

[0093] In one implementation, the first configuration information includes at least one of the following: number information of the first search space group associated with the first CSS set; and information on whether the first CSS set can be associated with the first search space group.

[0094] In another implementation, the determination module 520 is used for at least one of the following: when the first CSS set is associated with the first search space group and the first search space group is in an inactive state, on the first CSS set, the terminal does not monitor the downlink control information DCI scrambled by the first radio network temporary identifier RNTI; when the first CSS set is associated with the first search space group and the first search space group is in an activated state, on the first CSS set, the terminal monitors the DCI scrambled by the first RNTI and / or the second RNTI; when the first CSSset is associated with the first search space group and the first search space group is in an activated state, on the first CSS set, the terminal does not monitor the DCI scrambled by the first RNTI; when the first CSS set is associated with the first search space group and the first search space group is in an inactive state, on the first CSS set, the terminal does not monitor the PDCCH; when the first CSS set cannot be associated with the first search space group, on the first CSS set, the terminal monitors the DCI scrambled by the first RNTI and / or the second RNTI; when the first CSSset cannot be associated with the first search space group, on the first CSS set, set, the terminal does not monitor the DCI scrambled by the first RNTI.

[0095] In another implementation, the first RNTI includes at least one of the cell C-RNTI, modulation and coding scheme MCS-CRNTI, and configuration scheduling CS-RNTI; and / or, the second RNTI includes at least one of the system information SI-RNTI, random access RA-RNTI, message MsgB-RNTI, and paging P-RNTI.

[0096] In another implementation, the first search space group is a non-sleep search space group; wherein, the non-sleep search space group is a search space group other than the sleep search space group, and the sleep search space group is not associated with any search space, or the terminal does not monitor the newly transmitted PDCCH on the sleep search space group.

[0097] The PDCCH monitoring device 500 in the embodiment of the present application can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal can include but is not limited to the types of terminals 11 listed above, and the non-mobile terminal can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine (ATM), or a self-service machine, etc., which are not specifically limited in the embodiment of the present application.

[0098] like Figure 6 As shown, it is a structural diagram of a PDCCH monitoring device 600 provided by an exemplary embodiment of the present application, and the device 600 includes a sending module 610 for sending first configuration information; wherein, the first configuration information is used to configure the association relationship between the first CSS set and the first search space group, and the first configuration information is used to determine the PDCCH monitoring behavior on the first CSS set; the first CSS set includes at least one of Type 0CSS set, Type0A CSS set, Type1 CSS set, and Type2 CSS set.

[0099] In one implementation, the apparatus 600 may further include a determination module configured to determine the first configuration information.

[0100] In another implementation, the first configuration information includes at least one of the following: number information of the first search space group associated with the first CSS set; and information on whether the first CSS set can be associated with the first search space group.

[0101] In another implementation, the first search space group is a non-sleep search space group; wherein, the non-sleep search space group is a search space group other than the sleep search space group, the sleep search space group is not associated with any search space, or the terminal does not monitor the newly transmitted PDCCH on the sleep search space group.

[0102] The PDCCH monitoring device 600 in the embodiment of the present application can be a device, a device with an operating system or a network side device, or a component, integrated circuit, or chip in the network side device, etc., which is not limited here.

[0103] The PDCCH devices 500 and 600 provided in the embodiments of the present application can achieve Figures 2 to 4The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0104] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the method described in method embodiments 200 and 300. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effect.

[0105] Specifically, Figure 7 This is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application. The terminal 700 includes, but is not limited to, at least some of the components of a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0106] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 710 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0107] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 1041 and a microphone 7042, and the graphics processor 7041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include but are not limited to a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0108] In this embodiment of the present application, the radio frequency unit 701 receives downlink data from the network-side device and transmits it to the processor 710 for processing. Furthermore, the radio frequency unit 701 transmits uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0109] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, at least one application program or instruction required for a function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a high-speed random access memory and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0110] Processor 710 may include one or more processing units. Optionally, processor 710 may integrate an application processor and a modem processor. The application processor primarily processes the operating system, user interface, and application programs or instructions, while the modem processor primarily processes wireless communications, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 710.

[0111] Among them, the processor 710 is used to obtain first configuration information, wherein the first configuration information is used to configure the association relationship between the first common search space set CSS set and the first search space group; according to the first configuration information, the physical downlink control channel PDCCH monitoring behavior on the first CSS set is determined; wherein, the first CSS set includes at least one of a common search space set Type 0CSS set, a common search space set Type0A CSS set, a common search space set Type1 CSS set, and a common search space set Type2 CSS set.

[0112] Optionally, the first configuration information includes at least one of the following: number information of a first search space group associated with the first CSS set; and information on whether the first CSS set can be associated with the first search space group.

[0113] Optionally, the processor 710 determines the step of PDCCH monitoring behavior on the first CSS set according to the first configuration information, including at least one of the following items: when the first CSS set is associated with the first search space group and the first search space group is in an inactive state, on the first CSS set, the terminal does not monitor the downlink control information DCI scrambled by the first radio network temporary identifier RNTI; when the first CSS set is associated with the first search space group and the first search space group is in an activated state, on the first CSS set, the terminal monitors the DCI scrambled by the first RNTI and / or the second RNTI; when the first CSS set is associated with the first search space group and the first search space group is in an inactive state, on the first CSS set, the terminal does not monitor PDCCH; when the first CSS set cannot be associated with the first search space group, on the first CSS set, the terminal monitors the DCI scrambled by the first RNTI and / or the second RNTI; when the first CSS set is associated with the first search space group and the first search space group is in an activated state, on the first CSS set, the terminal does not monitor the DCI scrambled by the first RNTI; When the first search space group cannot be associated with the first search space group, the terminal does not monitor the DCI scrambled by the first RNTI on the first CSS set.

[0114] Optionally, the first RNTI includes at least one of a cell C-RNTI, a modulation and coding scheme MCS-CRNTI, and a configuration scheduling CS-RNTI; and / or, the second RNTI includes at least one of a system information SI-RNTI, a random access RA-RNTI, a message MsgB-RNTI, and a paging P-RNTI.

[0115] Optionally, the first search space group is a non-sleep search space group; wherein, the non-sleep search space group is a search space group other than the sleep search space group, the sleep search space group is not associated with any search space, or the terminal does not monitor the newly transmitted PDCCH on the sleep search space group.

[0116] In this embodiment, the PDCCH monitoring behavior on the first CSS set is determined according to the first configuration information, thereby solving the problem of always needing to monitor the PDCCH on the first CSS set and reducing terminal power consumption.

[0117] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method described in method embodiment 400. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this network-side device embodiment and can achieve the same technical effects.

[0118] Specifically, the embodiment of the present application also provides a network side device. Figure 8 As shown, network device 800 includes an antenna 801, a radio frequency device 802, and a baseband device 803. Antenna 801 is connected to radio frequency device 802. In the uplink direction, radio frequency device 802 receives information via antenna 801 and sends the received information to baseband device 803 for processing. In the downlink direction, baseband device 803 processes the information to be transmitted and sends it to radio frequency device 82. Radio frequency device 82 processes the received information and then sends it through antenna 81.

[0119] The frequency band processing device may be located in the baseband device 803 . The method performed by the network-side device in the above embodiment may be implemented in the baseband device 803 . The baseband device 803 includes a processor 804 and a memory 805 .

[0120] The baseband device 803 may include, for example, at least one baseband board on which a plurality of chips are arranged, such as Figure 8 As shown, one of the chips is, for example, a processor 804, which is connected to a memory 805 to call a program in the memory 805 and execute the network device operations shown in the above method embodiment.

[0121] The baseband device 803 may further include a network interface 806 for exchanging information with the radio frequency device 802 . The interface may be, for example, a common public radio interface (CPRI).

[0122] Specifically, the network side device of the embodiment of the present invention further includes: instructions or programs stored in the memory 805 and executable on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute. Figure 6 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0123] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned PDCCH monitoring method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0124] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk.

[0125] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run network-side device programs or instructions to implement the various processes of the above-mentioned PDCCH monitoring method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0126] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0127] An embodiment of the present application also provides a computer program product, which includes a processor, a memory, and a program or instruction stored in the memory and runnable on the processor. When the program or instruction is executed by the processor, the various processes of the above-mentioned PDCCH monitoring method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0128] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0129] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0130] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A PDCCH monitoring method, characterized in that: include: The terminal obtains first configuration information, where the first configuration information is used to configure an association relationship between the first common search space set CSSset and the first search space group; The terminal determines, according to the first configuration information, a physical downlink control channel (PDCCH) monitoring behavior on the first CSS set; The first CSS set includes at least one of a Type 0 common search space set Type 0 CSS set, a Type0A CSS set, a Type1 CSS set, and a Type2 CSS set; The step of determining, according to the first configuration information, a PDCCH monitoring behavior on the first CSS set includes at least one of the following: When the first CSS set is associated with the first search space group and the first search space group is in an inactive state, the terminal does not monitor downlink control information DCI scrambled by a first radio network temporary identifier RNTI on the first CSS set; When the first CSS set is associated with the first search space group and the first search space group is in an activated state, the terminal monitors, on the first CSS set, DCI scrambled by the first RNTI and / or the second RNTI; In a case where the first CSS set cannot be associated with the first search space group, the terminal does not monitor DCI scrambled by the first RNTI on the first CSS set; The first RNTI includes at least one of a cell C-RNTI, a modulation and coding scheme MCS-CRNTI, and a configuration scheduling CS-RNTI; and / or, The second RNTI includes at least one of a system information SI-RNTI, a random access RA-RNTI, a message MsgB-RNTI, a temporary cell TC-RNTI, and a paging P-RNTI.

2. The method according to claim 1, wherein The first configuration information includes at least one of the following: Number information of the first search space group associated with the first CSS set; Information on whether the first CSS set can be associated with the first search space group.

3. The method according to claim 1, wherein The step of determining, according to the first configuration information, a PDCCH monitoring behavior on the first CSS set further includes at least one of the following: When the first CSS set is associated with the first search space group and the first search space group is in an activated state, the terminal does not monitor DCI scrambled by the first RNTI on the first CSS set; When the first CSS set is associated with the first search space group and the first search space group is in an inactive state, the terminal does not monitor the PDCCH on the first CSS set; In a case where the first CSS set cannot be associated with the first search space group, the terminal monitors DCI scrambled by the first RNTI and / or the second RNTI on the first CSS set.

4. The method according to any one of claims 1 to 3, characterized in that The first search space group is a non-sleep search space group; The non-sleep search space group is a search space group other than the sleep search space group, the sleep search space group is not associated with any search space, or the terminal does not monitor a newly transmitted PDCCH in the sleep search space group.

5. A PDCCH monitoring method, characterized in that: include: The network side device sends first configuration information; The first configuration information is used to configure an association relationship between a first common search space set CSS set and a first search space group, and the first configuration information is used to determine a physical downlink control channel PDCCH monitoring behavior on the first CSS set; The first CSS set includes at least one of a Type 0 common search space set Type 0 CSS set, a Type0A CSS set, a Type1 CSS set, and a Type2 CSS set; The first configuration information is used to determine a PDCCH monitoring behavior on the first CSS set, including at least one of the following: When the first configuration information is used to configure the first CSS set to be associated with the first search space group and the first search space group is in an inactive state, downlink control information (DCI) scrambled by a first radio network temporary identifier (RNTI) is not monitored on the first CSS set; When the first configuration information is used to configure the first CSS set to be associated with the first search space group and the first search space group is in an activated state, monitoring, on the first CSS set, DCI scrambled by the first RNTI and / or the second RNTI; When the first configuration information is used to configure the first CSS set to be unable to be associated with the first search space group, on the first CSS set, DCI scrambled by the first RNTI is not monitored; The first RNTI includes at least one of a cell C-RNTI, a modulation and coding scheme MCS-CRNTI, and a configuration scheduling CS-RNTI; and / or, The second RNTI includes at least one of a system information SI-RNTI, a random access RA-RNTI, a message MsgB-RNTI, a temporary cell TC-RNTI, and a paging P-RNTI.

6. The method according to claim 5, wherein The first configuration information includes at least one of the following: Number information of the first search space group associated with the first CSS set; Information on whether the first CSS set can be associated with the first search space group.

7. The method according to any one of claims 5 or 6, wherein: The first search space group is a non-sleep search space group; The non-sleep search space group is a search space group other than the sleep search space group. The sleep search space group is not associated with any search space, or the terminal does not monitor a newly transmitted PDCCH in the sleep search space group.

8. A PDCCH monitoring device, characterized in that: include: an acquisition module, configured to acquire first configuration information, wherein the first configuration information is used to configure an association relationship between a first common search space set CSS set and a first search space group; A determination module, configured to determine a physical downlink control channel (PDCCH) monitoring behavior on the first CSS set according to the first configuration information; The first CSS set includes at least one of a Type 0 common search space set Type 0 CSS set, a Type0A CSS set, a Type1 CSS set, and a Type2 CSS set; The step of determining, according to the first configuration information, a PDCCH monitoring behavior on the first CSS set includes at least one of the following: When the first CSS set is associated with the first search space group and the first search space group is in an inactive state, downlink control information DCI scrambled by a first radio network temporary identifier RNTI is not monitored on the first CSS set; When the first CSS set is associated with the first search space group and the first search space group is in an activated state, monitoring DCI scrambled by the first RNTI and / or the second RNTI on the first CSS set; If the first CSS set cannot be associated with the first search space group, do not monitor DCI scrambled by the first RNTI on the first CSS set; The first RNTI includes at least one of a cell C-RNTI, a modulation and coding scheme MCS-CRNTI, and a configuration scheduling CS-RNTI; and / or, The second RNTI includes at least one of a system information SI-RNTI, a random access RA-RNTI, a message MsgB-RNTI, a temporary cell TC-RNTI, and a paging P-RNTI.

9. The device according to claim 8, wherein The first configuration information includes at least one of the following: Number information of the first search space group associated with the first CSS set; Information on whether the first CSS set can be associated with the first search space group.

10. The device according to claim 8, wherein The determining module is further configured to: When the first CSS set is associated with the first search space group and the first search space group is activated, DCI scrambled by the first RNTI is not monitored on the first CSS set; When the first CSS set is associated with the first search space group and the first search space group is in an inactive state, the PDCCH is not monitored on the first CSS set; In a case where the first CSS set cannot be associated with the first search space group, DCI scrambled by the first RNTI and / or the second RNTI is monitored on the first CSS set.

11. The device according to any one of claims 8 to 10, characterized in that The first search space group is a non-sleep search space group; The non-dormant search space group is a search space group other than the dormant search space group. The dormant search space group is not associated with any search space, or a newly transmitted PDCCH is not monitored in the dormant search space group.

12. A device for monitoring PDCCH, characterized in that: include: A sending module, configured to send first configuration information; The first configuration information is used to configure an association relationship between a first common search space set CSS set and a first search space group, and the first configuration information is used to determine a physical downlink control channel PDCCH monitoring behavior on the first CSS set; The first CSS set includes at least one of a Type 0 common search space set Type 0 CSS set, a Type0A CSS set, a Type1 CSS set, and a Type2 CSS set; The first configuration information is used to determine a PDCCH monitoring behavior on the first CSS set, including at least one of the following: When the first configuration information is used to configure the first CSS set to be associated with the first search space group and the first search space group is in an inactive state, downlink control information (DCI) scrambled by a first radio network temporary identifier (RNTI) is not monitored on the first CSS set; When the first configuration information is used to configure the first CSS set to be associated with the first search space group and the first search space group is in an activated state, monitoring, on the first CSS set, DCI scrambled by the first RNTI and / or the second RNTI; When the first configuration information is used to configure the first CSS set to be unable to be associated with the first search space group, on the first CSS set, DCI scrambled by the first RNTI is not monitored; The first RNTI includes at least one of a cell C-RNTI, a modulation and coding scheme MCS-CRNTI, and a configuration scheduling CS-RNTI; and / or, The second RNTI includes at least one of a system information SI-RNTI, a random access RA-RNTI, a message MsgB-RNTI, a temporary cell TC-RNTI, and a paging P-RNTI.

13. The device according to claim 12, wherein The first configuration information includes at least one of the following: Number information of the first search space group associated with the first CSS set; Information on whether the first CSS set can be associated with the first search space group.

14. The device according to any one of claims 12 or 13, characterized in that The first search space group is a non-sleep search space group; The non-sleep search space group is a search space group other than the sleep search space group. The sleep search space group is not associated with any search space, or the terminal does not monitor a newly transmitted PDCCH in the sleep search space group.

15. A terminal, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the PDCCH monitoring method according to any one of claims 1 to 4.

16. A network side device, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the PDCCH monitoring method according to any one of claims 5 to 7.

17. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the PDCCH monitoring method according to any one of claims 1 to 4 are implemented, or the steps of the PDCCH monitoring method according to any one of claims 5 to 7 are implemented.

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