Pdcch monitoring method, terminal, and network side device

Abstract

To provide a physical downlink control channel (PDCCH) monitoring method, a terminal, and a network side device.SOLUTION: A method includes: receiving a first DCI for commanding PDCCH skipping; and determining a first operation on the basis of first downlink control information (DCI). The first operation includes a PDCCH monitoring operation in the case of acquiring a band width part (BWP) switching instruction in a PDCCH skipping period. In the case of acquiring a BWP switching instruction in the PDCCH skipping period, the PDCCH skipping is stopped in the BWP before the switching, and the PDCCH skipping is interrupted in a target BWP after the switching or the PDCCH skipping is temporally stopped in the BWP before the switching, and the PDCCH skipping is continued in the target BWP after the switching.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] This application relates to the field of communication technologies, and specifically to a method for monitoring a Physical Downlink Control Channel (PDCCH), a terminal, and a network-side device.

Background Art

[0002] PDCCH skipping means skipping the monitoring of PDCCH at a certain time interval. For example, the monitoring of PDCCH for 8 or 16 slots can be skipped, and the terminal can enter the sleep state during the PDCCH skipping period to save power.

[0003] A Bandwidth Part (BWP) is a subset bandwidth of the total bandwidth of a cell. Each BWP can use different bandwidths and parameter sets. By switching different BWPs, the size of the receiving and transmitting bandwidths of the terminal can be flexibly adjusted to increase the flexibility of scheduling, save the power of the terminal, and meet the diverse requirements of new New Radio (NR) services.

[0004] In related technologies, when PDCCH skipping and BWP switching conflict, the operation of the terminal becomes uncertain, and transmission problems are likely to occur due to the inconsistent understanding between the terminal and the network-side device.

Summary of the Invention

Problems to be Solved by the Invention

[0005] Embodiments of this application provide a PDCCH monitoring method, a terminal, and a network-side device that can solve the problem that transmission problems are likely to occur due to the inconsistent understanding between the terminal and the network-side device when PDCCH skipping and BWP switching conflict.

Means for Solving the Problems

[0006] According to a first aspect, a PDCCH monitoring method for use in a terminal is provided. The method includes receiving the first downlink control information DCI for instructing physical downlink control channel PDCCH skipping, and determining a first operation based on the first DCI. The first operation includes at least one of a state of a bandwidth part BWP deactivation timer after receiving the first DCI, a PDCCH monitoring operation when a BWP switching instruction is obtained during a PDCCH skipping period, and a PDCCH monitoring operation and a BWP switching operation when the PDCCH skipping and BWP switching collide.

[0007] According to a second aspect, a PDCCH monitoring method applied to a network side device is provided. The method includes transmitting the first DCI for instructing PDCCH skipping, and determining a first operation of a terminal based on the first DCI. The first operation includes at least one of a state of a bandwidth part BWP deactivation timer after receiving the first DCI, a PDCCH monitoring operation when a BWP switching instruction is obtained during a PDCCH skipping period, and a PDCCH monitoring operation and a BWP switching operation when the PDCCH skipping and BWP switching collide.

[0008] According to a third aspect, a PDCCH monitoring apparatus is provided. The apparatus includes a receiving module for receiving the first DCI for instructing PDCCH skipping, and a determining module for determining a first operation based on the first DCI. The first operation includes at least one of a state of a bandwidth part BWP deactivation timer after receiving the first DCI, a PDCCH monitoring operation when a BWP switching instruction is obtained during a PDCCH skipping period, and a PDCCH monitoring operation and a BWP switching operation when the PDCCH skipping and BWP switching collide.

[0009] According to a fourth aspect, a PDCCH monitoring apparatus is provided, the apparatus including a transmission module for transmitting the first DCI for instructing PDCCH skipping, and a determination module for determining a first operation of a terminal based on the first DCI, where the first operation includes at least one of a state of a bandwidth part BWP deactivation timer after receiving the first DCI, a PDCCH monitoring operation when a BWP switching instruction is obtained during a PDCCH skipping period, and a PDCCH monitoring operation and a BWP switching operation when the PDCCH skipping and BWP switching collide.

[0010] According to a fifth aspect, a terminal is provided, the terminal including a processor, a memory, and a program or instruction stored in the memory and executable by the processor, where when the program or instruction is executed by the processor, the method described in the first aspect is implemented.

[0011] According to a sixth aspect, a network-side device is provided, the network-side device including a processor, a memory, and a program or instruction stored in the memory and executable by the processor, where when the program or instruction is executed by the processor, the method described in the second aspect is implemented.

[0012] According to a seventh aspect, a readable storage medium is provided, where a program or instruction is stored in the readable storage medium, and when the program or instruction is executed by a processor, the method described in the first aspect is implemented, or the method described in the second aspect is implemented.

[0013] According to an eighth aspect, a computer program product is provided, the computer program product including a processor, a memory, and a program or instruction stored in the memory and executable by the processor, where when the program or instruction is executed by the processor, the method described in the first aspect is implemented, or the method described in the second aspect is implemented.

[0014] According to a ninth aspect, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run a program or instructions to implement the method described in the first aspect or the method described in the second aspect.

Effects of the Invention

[0015] In an embodiment of the present application, when a terminal receives a first DCI for instructing PDCCH skipping, the terminal can determine a first operation based on the first DCI, and the first operation includes at least one of the state of the BWP deactivation timer after receiving the first DCI, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period, and the PDCCH monitoring operation and the BWP switching operation when a conflict occurs between PDCCH skipping and BWP switching. The embodiment of the present application can solve the problem that when a conflict occurs between PDCCH skipping and BWP switching, a transmission problem is likely to occur due to a misunderstanding between the terminal and the network-side device, and can improve the effectiveness of communication.

Brief Description of the Drawings

[0016]

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Embodiments for Carrying Out the Invention

[0017] The following clearly and completely describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in the present application shall fall within the protection scope of the present application.

[0018] Terms such as "first" and "second" in the specification and claims of the present application are used to distinguish similar objects and are not for describing a specific order or sequence. It should be understood that such data can be exchanged when appropriate, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first" and "second" generally belong to the same category and do not limit the number of objects. For example, the first object may be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the related objects before and after are in an "or" relationship.

[0019] It should be noted 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 applied to 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 always used interchangeably, and the described technology may be used in the systems and radio technologies mentioned above, or may also be used in other systems and radio technologies. The following description describes the New Radio (NR) system for illustrative purposes and uses NR terms in most of the following descriptions, but these technologies may also be applied to applications other than NR system applications, such as the 6th Generation (6G) communication system.

[0020] FIG. 1 is a schematic diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Here, the terminal 11 may also be referred to as a terminal device or a user equipment (UE). The terminal 11 may be a terminal-side device such as a mobile phone, a tablet personal computer, a laptop computer (or called a notebook computer), a personal digital assistant (PDA), a palm-top computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device, or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc. The wearable device includes a bracelet, earphones, glasses, etc. It should be noted that the specific type of the terminal 11 in the embodiment of the present application is not limited. The network-side device 12 may be a base station or a core network. Here, the base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a next-generation node B (gNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and 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 specific technical terms. It should be noted that in the embodiments of the present disclosure, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0021] In the following, the physical downlink control channel (PDCCH) according to the embodiment of the present application will be described in detail with reference to the drawings. This paper provides a detailed explanation of the monitoring method of the PDCCH (Passive Delay Control Channel, Passive Delay Control Channel) and the terminal and network side equipment.

[0022] As shown in FIG. 2, an embodiment of the present application provides a PDCCH monitoring method 200 performed by a terminal, in other words, the method is performed by software or hardware installed in the terminal, and includes the following steps:

[0023] S202: Receive a first Downlink Control Information (DCI) for instructing PDCCH skipping.

[0024] In this step, the terminal may receive a PDCCH carrying a first DCI. The first DCI is used to instruct the terminal to perform PDCCH skipping, for example, the first DCI includes first instruction information, and the first instruction information instructs the terminal to enter a PDCCH skipping duration after the DCI reception time.

[0025] S204: Determine a first operation based on the first DCI, the first operation including at least one of: (1) a state of a BandWidth Part (BWP) inactivity timer (Bwp-Inactivity Timer) after receiving the first DCI; (2) a PDCCH monitoring operation when a BWP switching instruction is obtained within a PDCCH skipping period; and (3) a PDCCH monitoring operation and a BWP switching operation when the PDCCH skipping and BWP switching collide.

[0026] As can be understood, when the three types of first operations listed above do not collide during execution, the terminal can execute one or more of these three types of first operations.

[0027] Determining the first operation based on the first DCI mentioned in this step includes, for example, determining the first operation based on protocol conventions and the first DCI, or determining the first operation based on radio resource control (RRC) configuration and the first DCI, or directly determining the first operation based on the first DCI instruction, and so on.

[0028] It can be understood that the terminal's determination of the first operation mentioned in this step is to determine how to execute it (that is, how to perform the first operation), and it can also be understood that the terminal directly executes or implements the first operation.

[0029] In the PDCCH monitoring method according to the embodiments of the present application, when the terminal receives the first DCI for instructing PDCCH skipping, it can determine the first operation based on the first DCI. The first operation includes at least one of the state of the bandwidth part (BWP) deactivation timer after receiving the first DCI, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period, and the PDCCH monitoring operation and the BWP switching operation when the PDCCH skipping and BWP switching collide. The embodiments of the present application solve the problem that when the PDCCH skipping and BWP switching collide, transmission problems are likely to occur due to the inconsistent understanding between the terminal and the network-side device, and can improve the effectiveness of communication.

[0030] In Embodiment 200, it is mentioned that the terminal determines the first operation based on the first DCI. Hereinafter, the first operation executed by the terminal will be described in detail by dividing it into several aspects.

[0031] Solution 1

[0032] In this solution, the state of the BWP deactivation timer after the terminal receives the first DCI includes the suspension or stop of the BWP deactivation timer after receiving the first DCI.

[0033] Regarding the role of the BWP deactivation timer, generally, if the terminal does not receive the uplink and downlink scheduling DCI during the operation of the BWP deactivation timer, when the BWP deactivation timer times out, the terminal switches from the current BWP to the default BWP.

[0034] In this embodiment, for example, a terminal (e.g., a UE) operates in the current BWP, performs PDCCH skipping based on the instruction of the first DCI, and suspends or stops the BWP deactivation timer at any one of the following times.

[0035] 1) The time when the first DCI is received.

[0036] 2) The target time after receiving the first DCI (the target time is before the start time of the PDCCH skipping period). As can be understood, in the order from the front to the back in time series, the terminal first receives the DCI, then performs PDCCH skipping based on the DCI instruction, and finally enters the PDCCH skipping duration based on the PDCCH skipping instruction. This target time may specifically be the time when the application delay indicated by the PDCCH skipping arrives, or the time when the activation delay indicated by the PDCCH skipping arrives.

[0037] 3) The start time of the PDCCH skipping period.

[0038] Optionally, in this embodiment, when the BWP deactivation timer is paused, the method further includes performing the PDCCH skipping based on the first DCI, and resuming the BWP deactivation timer when the PDCCH skipping period ends.

[0039] Solution 1 avoids transmission problems due to the inconsistency in understanding between the network-side device and the terminal when the BWP deactivation timer expires during the PDCCH skipping period, and improves communication effectiveness.

[0040] Solution 2

[0041] Solution 2 mainly introduces the impact of BWP switching (or BWP switching indication) on PDCCH skipping, and will be introduced separately in Solution 2.1 and Solution 2.2 below.

[0042] Solution 2.1

[0043] In this solution, when a BWP switching indication is obtained during the PDCCH skipping period, the PDCCH monitoring operation includes stopping the PDCCH skipping within the BWP before switching and not performing the PDCCH skipping within the target BWP after switching once a BWP switching indication is obtained during the PDCCH skipping period.

[0044] Specifically, for example, in this solution, if the UE is operating in the current BWP, performs PDCCH skipping according to the first DCI instruction, and obtains a BWP switching indication within the PDCCH skipping duration, it performs BWP switching based on the BWP switching indication, stops the PDCCH skipping process, and does not continue PDCCH skipping on the target BWP after switching. That is, the PDCCH skipping instruction is only valid in the currently activated BWP and invalid in the target BWP after switching.

[0045] The BWP switching instruction in this embodiment may be obtained by the network-side device transmitting and the terminal receiving. The BWP switching instruction in this embodiment may also be obtained by the BWP deactivation timer timing out.

[0046] Solution 2.2

[0047] In this solution, when a BWP switching instruction is obtained during the PDCCH skipping period, the PDCCH monitoring operation includes: if a BWP switching instruction is obtained during the PDCCH skipping period, temporarily stop the PDCCH skipping within the BWP before switching, and continue the PDCCH skipping within the target BWP after switching.

[0048] In this solution, specifically, for example, if the UE is operating in the current BWP, performs PDCCH skipping based on the first DCI instruction, and obtains a BWP switching instruction within the PDCCH skipping duration, it may perform BWP switching according to the BWP switching instruction, temporarily stop the PDCCH skipping process within the current BWP, and continue the remaining PDCCH skipping after switching to the target BWP.

[0049] The BWP switching instruction in this embodiment may be obtained by the network-side device transmitting and the terminal receiving. The BWP switching instruction in this embodiment may also be obtained by the BWP deactivation timer timing out.

[0050] Optionally, the duration of the PDCCH skipping period within the target BWP is obtained based on the remaining number of time units and the duration of each time unit.

[0051] Here, the remaining number of time units is obtained based on at least one of the total number of time units occupied by the PDCCH skipping, the number of time units occupied by the PDCCH skipping within the BWP before switching, and the number of time units occupied by the delay during BWP switching, and / or The time length of each of the above time units is obtained based on either the subcarrier spacing (SCS) of the BWP before switching or the SCS of the target BWP. That is, the time length per time unit is based on either the time per unit corresponding to the SCS of the BWP before switching (for example, when the SCS is 30 KHz, the time per slot is 0.5 ms) or the time per unit corresponding to the SCS of the target BWP after switching (for example, when the SCS is 15 KHz, the time per slot is 1 ms).

[0052] In this example, for instance, the remaining number of time units may be either 1) the total number of units of the PDCCH skipping duration minus the number of units of the PDCCH skipping in the BWP before switching, or 2) the total number of units of the PDCCH skipping duration minus the number of units of the PDCCH skipping in the BWP before switching and then minus the number of units of the BWP switching delay.

[0053] In the above Solutions 2.1 and 2.2, when BWP switching occurs or a BWP switching instruction is received, the PDCCH skipping operation of the terminal is defined in detail to avoid transmission problems caused by inconsistent understandings between the network-side device and the terminal and to improve the effectiveness of communication.

[0054] Solution 3

[0055] It is not desirable (or not permitted by protocol agreement) for the terminal to have a single DCI that includes both a PDCCH skipping instruction and any one of a BWP switching instruction, a secondary cell dormancy instruction, and a search space group switching instruction.

[0056] For example, in Embodiment 200, the first DCI is used to indicate PDCCH skipping, and the first DCI is not used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching.

[0057] Embodiment 200 may further include the step of the terminal receiving the second DCI for indicating at least one of BWP switching, secondary cell sleep, and search space group switching, where the second DCI is not used to indicate PDCCH skipping.

[0058] Solution 4

[0059] In this solution, BWP switching and PDCCH skipping are not simultaneously enabled. The following will be introduced separately in Solution 4.1 and Solution 4.2.

[0060] Solution 4.1

[0061] The first DCI includes first indication information and second indication information. The first indication information is used to indicate the PDCCH skipping, and the second indication information is used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching. Here, when the first indication information is enabled, the second indication information is not enabled, and / or when the second indication information is enabled, the first indication information is not enabled.

[0062] Solution 4.2

[0063] When the PDCCH skipping and BWP switching collide, the PDCCH monitoring operation and BWP switching operation are to execute the BWP switching, execute the PDCCH skipping based on the first DCI within the target BWP after the switching, or execute the PDCCH skipping based on the first DCI and execute the BWP switching after the end of the PDCCH skipping period.

[0064] The collision between the PDCCH skipping and BWP switching mentioned in this embodiment includes, for example, that the first DCI is used to indicate PDCCH skipping and is also used to indicate BWP switching to the terminal. As can be understood, in other embodiments, the PDCCH skipping and BWP switching may be indicated by different signaling or mechanisms. For example, the first DCI indicates PDCCH skipping, and the BWP deactivation timer times out to trigger the BWP switching.

[0065] Optionally, the first DCI further includes the time length information of the PDCCH skipping period.

[0066] The above Solution 4.1 and Solution 4.2 enable the BWP switching and PDCCH skipping simultaneously, avoid transmission problems due to the inconsistency in understanding between the network-side device and the terminal, and improve the effectiveness of communication.

[0067] It should be noted that each embodiment of the present application can be applied to the power saving scenario of a terminal. Specifically, the BWP switching technology can realize the switching from a wide bandwidth BWP to a narrow bandwidth BWP, and can realize the power saving of the terminal according to the dynamic change of the service. PDCCH skipping realizes the power saving of the terminal by dynamically instructing DCI to skip the PDCCH monitoring at a certain time interval. However, the following operations of the terminal in the existing technology, for example, the state of the BWP - Inactive timer when the terminal receives the first DCI for instructing PDCCH skipping, the PDCCH monitoring operation when the terminal obtains a BWP switching instruction during the PDCCH skipping period, and the PDCCH monitoring operation and the BWP switching operation when PDCCH skipping and BWP switching conflict, are still unclear, which is likely to cause a misunderstanding between the network - side device and the terminal - side device. Each embodiment of the present application provides corresponding solutions based on this, avoids the transmission problems caused by the misunderstanding between the network - side device and the terminal - side device, and improves the effectiveness of communication.

[0068] The application scenario of each embodiment of the present application is not limited to power saving of the terminal, and may also be used in a reduced - capability UE (RedCap UE) or an extended reality (XR) scenario.

[0069] To describe the PDCCH monitoring method according to the embodiments of the present application in detail, several specific embodiments will be described below in combination.

[0070] Embodiment 1

[0071] This embodiment mainly introduces the influence on the BWP - Inactivity Timer by the PDCCH skipping instruction.

[0072] As shown in FIG. 3, the UE operates in the current BWP (the BWP before switching in FIG. 3) and performs PDCCH skipping based on signaling instructions. The Bwp-Inactivity Timer is paused at the start time of the PDCCH skipping duration, and after the PDCCH skipping duration (10 slots) ends, the Bwp-Inactivity Timer is resumed. After the expiration of the Bwp-Inactivity Timer, the BWP switching is executed to switch to the target BWP.

[0073] Embodiment 2

[0074] This embodiment mainly introduces the impact of BWP switching on PDCCH skipping.

[0075] Parameter hypothesis: The UE operates in the current BWP (SCS = 30KHz, the time length of 1 slot is 0.5ms). Since the Bwp-Inactivity Timer expires within the PDCCH skipping duration, it is necessary to switch to the target BWP (SCS = 15KHz, the time length of 1 slot is 1ms). The BWP switching delay is 1ms, the length of the PDCCH skipping duration is 10 slots, and the Bwp-Inactivity Timer expires with 4 slots remaining at the start of the PDCCH skipping.

[0076] (1) As shown in FIG. 4, the UE operates in the current BWP, executes PDCCH skipping based on signaling instructions, a BWP switching occurs within the PDCCH skipping duration, the PDCCH skipping process is stopped, and PDCCH skipping is not continued on the target BWP, corresponding to Solution 2.1.

[0077] (2) As shown in Fig. 5, during the PDCCH skipping duration, a BWP switch occurs, temporarily halting the PDCCH skipping process within the current BWP. After switching to the target BWP, the remaining PDCCH skipping continues. The remaining number of indicated units is obtained by subtracting the number of units for which PDCCH monitoring is skipped on the BWP before switching from the total number of units in the PDCCH skipping duration. The time per unit corresponds to the time per unit of the SCS of the BWP before switching and corresponds to Solution 2.2.

[0078] In this example, the remaining number of indicated units is 10 slots - 4 slots = 6 slots. The length of 1 slot corresponding to the SCS = 30 KHz of the BWP before switching is 0.5 ms, and the remaining time is 6 * 0.5 ms = 3 ms, corresponding to 3 slots of the SCS = 15 KHz of the target BWP after switching.

[0079] (3) As shown in Fig. 6, during the PDCCH skipping duration, a BWP switch occurs, temporarily halting the PDCCH skipping process within the current BWP. After switching to the target BWP, the remaining PDCCH skipping continues. The remaining number of indicated units is obtained by subtracting the number of units for which PDCCH monitoring is skipped on the BWP before switching from the total number of units in the PDCCH skipping duration, and then further subtracting the number of units of the BWP switching delay. The time per unit corresponds to the time per unit of the SCS of the target BWP after switching and corresponds to Solution 2.2.

[0080] In this example, the remaining number of units is 10 slots - 4 slots - 2 slots of switching delay = 4 slots. The length of 1 slot corresponding to the SCS = 15 KHz of the target BWP after switching is 1 ms, and the remaining time is 4 * 1 ms = 4 ms, corresponding to 4 slots of the SCS = 15 KHz of the target BWP after switching. slot of the SCS = 15 KHz of the target BWP after switching.

[0081] Example 3

[0082] This example mainly introduces that BWP switching and PDCCH skipping are not enabled simultaneously.

[0083] As shown in FIG. 7, the same DCI instructs PDCCH skipping and BWP switching. The terminal first performs BWP switching, and then performs PDCCH skipping on the target BWP after the switching, skipping the 10-slot PDCCH monitoring instructed by this DCI.

[0084] Combined with FIG. 2 above, the PDCCH monitoring method according to the embodiment of the present application has been described in detail. Hereinafter, combined with FIG. 8, the PDCCH monitoring method according to another embodiment of the present application will be described in detail. As can be understood, the interaction between the network-side device and the terminal described from the network-side device is the same as the description on the terminal side in the method shown in FIG. 2. To avoid repetition of the description, related descriptions will be omitted as appropriate.

[0085] FIG. 8 is a flowchart for implementing the PDCCH monitoring method according to the embodiment of the present application and can be applied to a network-side device. As shown in FIG. 8, this method 800 includes the following steps.

[0086] S802: Transmit a first DCI for instructing PDCCH skipping.

[0087] S804: Determine a first operation of the terminal based on the first DCI. The first operation includes at least one of the state of the bandwidth part BWP deactivation timer after receiving the first DCI, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period, and the PDCCH monitoring operation and BWP switching operation when the PDCCH skipping and BWP switching collide.

[0088] In the PDCCH monitoring method according to the embodiments of the present application, a first DCI is transmitted, and further, a first operation of the terminal can be determined based on the first DCI. The first operation includes at least one of the state of the bandwidth part BWP deactivation timer after the terminal receives the first DCI, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period, and the PDCCH monitoring operation and the BWP switching operation when the PDCCH skipping and BWP switching conflict. The embodiments of the present application can solve the problem that when the PDCCH skipping and BWP switching conflict, transmission problems are likely to occur due to the inconsistent understanding between the terminal and the network-side device, and can improve the effectiveness of communication.

[0089] Optionally, as an example, the state of the BWP deactivation timer after receiving the first DCI includes pausing or stopping the BWP deactivation timer after receiving the first DCI.

[0090] Optionally, as an example, pausing or stopping the BWP deactivation timer includes pausing or stopping the BWP deactivation timer at any one of the time when the first DCI is received, the target time after receiving the first DCI (the target time is before the start time of the PDCCH skipping period), and the start time of the PDCCH skipping period.

[0091] Optionally, as an example, when the BWP deactivation timer is paused, the terminal further performs the PDCCH skipping based on the first DCI, and is used to resume the BWP deactivation timer when the PDCCH skipping period ends.

[0092] Optionally, as one example, the PDCCH monitoring operation when a BWP switching instruction is obtained within the PDCCH skipping period includes: when a BWP switching instruction is obtained within the PDCCH skipping period, stopping the PDCCH skipping in the BWP before switching and not executing the PDCCH skipping in the target BWP after switching.

[0093] Optionally, as one example, the PDCCH monitoring operation when a BWP switching instruction is obtained within the PDCCH skipping period includes: when a BWP switching instruction is obtained within the PDCCH skipping period, temporarily stopping the PDCCH skipping in the BWP before switching and continuing the PDCCH skipping in the target BWP after switching.

[0094] Optionally, as one example, the duration of the PDCCH skipping period in the target BWP is obtained based on the remaining number of time units and the duration of each time unit. Here, the remaining number of time units is obtained based on at least one of the total number of time units occupied by the PDCCH skipping, the number of time units occupied by the PDCCH skipping in the BWP before switching, and the number of time units occupied by the BWP switching delay, and / or the duration of each time unit is obtained based on either the subcarrier spacing SCS of the BWP before switching or the SCS of the target BWP.

[0095] Optionally, as one example, the first DCI is not used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching.

[0096] Optionally, as one example, the method includes transmitting the second DCI used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching, where the second DCI is not used to indicate PDCCH skipping.

[0097] Optionally, as an example, the first DCI includes first indication information and second indication information. The first indication information is used to indicate the PDCCH skipping, and the second indication information is used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching. Here, when the first indication information is activated, the second indication information is not activated, and / or when the second indication information is activated, the first indication information is not activated.

[0098] Optionally, as an example, when the PDCCH skipping and BWP switching conflict, the PDCCH monitoring operation and BWP switching operation include executing the BWP switching and then executing the PDCCH skipping based on the first DCI within the target BWP after the switching, or executing the PDCCH skipping based on the first DCI and then executing the BWP switching after the end of the PDCCH skipping period.

[0099] Optionally, as an example, the first DCI further includes time length information of the PDCCH skipping period.

[0100] It should be noted that the PDCCH monitoring method according to the embodiments of the present application may be implemented by a PDCCH monitoring device as the execution entity, or by a control module for executing the PDCCH monitoring method in the PDCCH monitoring device. In the embodiments of the present application, taking the PDCCH monitoring device executing the PDCCH monitoring method as an example, the PDCCH monitoring device according to the embodiments of the present application will be described.

[0101] FIG. 9 is a schematic structural diagram of a PDCCH monitoring device according to an embodiment of the present application, and this device corresponds to a terminal in other embodiments. As shown in FIG. 9, the device 900 A receiving module 902 that may be used to transmit the first DCI for instructing PDCCH skipping including a determination module 904 for determining a first operation based on the first DCI, where the first operation includes at least one of a state of a bandwidth part BWP deactivation timer after receiving the first DCI, a PDCCH monitoring operation when a BWP switching instruction is obtained during a PDCCH skipping period, and a PDCCH monitoring operation and a BWP switching operation when the PDCCH skipping and BWP switching collide.

[0102] According to an embodiment of the present application, when the PDCCH monitoring apparatus receives a first DCI for instructing PDCCH skipping, it can determine a first operation based on the first DCI. The first operation includes at least one of a state of a bandwidth part BWP deactivation timer after receiving the first DCI, a PDCCH monitoring operation when a BWP switching instruction is obtained during a PDCCH skipping period, and a PDCCH monitoring operation and a BWP switching operation when the PDCCH skipping and BWP switching collide. The embodiment of the present application can solve the problem that transmission problems are likely to occur due to inconsistent understanding between the terminal and the network-side device when the PDCCH skipping and BWP switching collide through the first operation, and can improve the effectiveness of communication.

[0103] Optionally, as an example, the state of the BWP deactivation timer after receiving the first DCI includes a pause or stop of the BWP deactivation timer after receiving the first DCI.

[0104] Alternatively, as one example, the suspension or stop of the BWP deactivation timer is to suspend or stop the BWP deactivation timer at any one of the time when the first DCI is received, the target time after the first DCI is received (the target time is before the start time of the PDCCH skipping period), and the start time of the PDCCH skipping period.

[0105] Alternatively, as one example, when the BWP deactivation timer is suspended, a control module for resuming the BWP deactivation timer when the PDCCH skipping period ends is further included to perform the PDCCH skipping based on the first DCI.

[0106] Alternatively, as one example, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period includes stopping the PDCCH skipping within the BWP before switching and not performing the PDCCH skipping within the target BWP after switching when a BWP switching instruction is obtained during the PDCCH skipping period.

[0107] Alternatively, as one example, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period includes suspending the PDCCH skipping within the BWP before switching and continuing the PDCCH skipping within the target BWP after switching when a BWP switching instruction is obtained during the PDCCH skipping period.

[0108] Optionally, as an example, the time length of the PDCCH skipping period within the target BWP is obtained based on the remaining number of time units and the time length of each time unit, where the remaining number of time units is obtained based on at least one of the total number of time units occupied by the PDCCH skipping, the number of time units occupied by the PDCCH skipping within the BWP before switching, and the number of time units occupied by the BWP switching delay, and / or the time length of each of the above time units is obtained based on either the subcarrier spacing SCS of the BWP before switching or the SCS of the target BWP.

[0109] Optionally, as an example, the first DCI is not used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching.

[0110] Optionally, as an example, the receiving module 902 is also used to receive a second DCI, and the second DCI is used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching, where the second DCI is not used to indicate PDCCH skipping.

[0111] Optionally, as an example, the first DCI includes first indication information and second indication information, the first indication information is used to indicate the PDCCH skipping, the second indication information is used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching, where when the first indication information is enabled, the second indication information is not enabled, and / or when the second indication information is enabled, the first indication information is not enabled.

[0112] Optionally, as an example, when the PDCCH skipping and BWP switching conflict, the PDCCH monitoring operation and BWP switching operation include executing the BWP switching, and executing the PDCCH skipping based on the first DCI within the target BWP after the switching, or executing the PDCCH skipping based on the first DCI and then executing the BWP switching after the end of the PDCCH skipping period.

[0113] Optionally, as an example, the first DCI further includes the time length information of the PDCCH skipping period.

[0114] The apparatus 900 according to the embodiment of the present application can refer to the flow of the method 200 corresponding to the embodiment of the present application, and each unit / module in this apparatus 900 and the above other operations and / or functions can respectively implement the corresponding flow of the method 200 and achieve the same or equivalent technical effects. To avoid repeated description, it will not be described herein any further.

[0115] The PDCCH monitoring apparatus in the embodiment of the present application may be an apparatus, or may be a component, integrated circuit, or chip in a terminal. This apparatus may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of the terminal 11 listed above. The non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a deposit and payment machine, or a self-service machine, etc. The embodiment of the present application is not specifically limited.

[0116] The PDCCH monitoring device in the embodiment of this application may be a device having an operating system. This operating system may be the Android (registered trademark) operating system, the iOS operating system, or other possible operating systems, and the embodiments of this application are not specifically limited.

[0117] The PDCCH monitoring device provided by the embodiments of this application can implement each process realized by the method embodiments from FIG. 2 to FIG. 8 and achieve the same technical effects. However, to avoid repetition of the description, it will not be described further here.

[0118] FIG. 10 is a schematic structural diagram of the PDCCH monitoring device according to the embodiment of this application. This device may correspond to the network-side device in other embodiments. As shown in FIG. 10, device 1000 includes a transmission module 1002 used to transmit the first DCI for instructing PDCCH skipping, and a determination module 1004 used to determine the first operation of the terminal based on the first DCI. The first operation includes at least one of the state of the bandwidth part BWP deactivation timer after receiving the first DCI, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period, and the PDCCH monitoring operation and the BWP switching operation when the PDCCH skipping and BWP switching collide.

[0119] The PDCCH monitoring device provided by the embodiments of the present application can transmit a first DCI and determine a first operation based on the first DCI. The first operation includes at least one of the operations of a terminal, such as the state of the bandwidth part BWP deactivation timer after receiving the first DCI, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period, and the PDCCH monitoring operation and the BWP switching operation when the PDCCH skipping and BWP switching collide. The embodiments of the present application can solve the problem that transmission problems are likely to occur due to the inconsistent understanding between the terminal and the network-side device when the PDCCH skipping and BWP switching collide, and improve the effectiveness of communication, by means of the first operation of the terminal.

[0120] Optionally, as one embodiment, the state of the BWP deactivation timer after receiving the first DCI includes pausing or stopping the BWP deactivation timer after receiving the first DCI.

[0121] Optionally, as one embodiment, pausing or stopping the BWP deactivation timer includes pausing or stopping the BWP deactivation timer at any one of the time when the first DCI is received, the target time after receiving the first DCI (the target time is before the start time of the PDCCH skipping period), and the start time of the PDCCH skipping period.

[0122] Optionally, as one embodiment, when the BWP deactivation timer is paused, the terminal further executes the PDCCH skipping based on the first DCI, and is used to resume the BWP deactivation timer when the PDCCH skipping period ends.

[0123] Optionally, as one example, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period includes that when a BWP switching instruction is obtained during the PDCCH skipping period, the PDCCH skipping is stopped in the BWP before switching, and the PDCCH skipping is not executed in the target BWP after switching.

[0124] Optionally, as one example, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period includes that when a BWP switching instruction is obtained during the PDCCH skipping period, the PDCCH skipping is temporarily stopped in the BWP before switching, and the PDCCH skipping is continued in the target BWP after switching.

[0125] Optionally, as one example, the time length of the PDCCH skipping period in the target BWP is obtained based on the remaining number of time units and the time length of each time unit, where the remaining number of time units is obtained based on at least one of the total number of time units occupied by the PDCCH skipping, the number of time units occupied by the PDCCH skipping in the BWP before switching, and the number of time units occupied by the BWP switching delay, and / or the time length of each time unit is obtained based on either the subcarrier spacing SCS of the BWP before switching or the SCS of the target BWP.

[0126] Optionally, as one example, the first DCI is not used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching.

[0127] Optionally, as one example, the transmission module 1002 is also used to transmit a second DCI, and the second DCI is used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching, where the second DCI is not used to indicate PDCCH skipping.

[0128] Optionally, as an example, the first DCI includes first indication information and second indication information. The first indication information is used to indicate the PDCCH skipping. The second indication information is used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching. Here, when the first indication information is enabled, the second indication information is not enabled, and / or when the second indication information is enabled, the first indication information is not enabled.

[0129] Optionally, as an example, when the PDCCH skipping and BWP switching collide, the PDCCH monitoring operation and BWP switching operation include executing the BWP switching and then executing the PDCCH skipping based on the first DCI within the target BWP after the switching, or executing the PDCCH skipping based on the first DCI and then executing the BWP switching after the end of the PDCCH skipping period.

[0130] Optionally, as an example, the first DCI further includes the time length information of the PDCCH skipping period.

[0131] The device 1000 according to the embodiments of the present application can refer to the flow of the method 800 corresponding to the embodiments of the present application. Each unit / module in this device 1000 and the above other operations and / or functions can respectively realize the corresponding flow of the method 800 and achieve the same or equivalent technical effects. To avoid repetition of the description, it will not be further described here.

[0132] Optionally, as shown in FIG. 11, the embodiment of the present application further provides a communication device 1100, which includes a processor 1101, a memory 1102, and a program or instruction stored in the memory 1102 and executable by the processor 1101. For example, when the communication device 1100 is a terminal, when the program or instruction is executed by the processor 1101, each process in the embodiment of the PDCCH monitoring method can be realized, and the same technical effect can be achieved. When the communication device 1100 is a network-side device, when the program or instruction is executed by the processor 1101, each process in the embodiment of the PDCCH monitoring method can be realized, and the same technical effect can be achieved. However, to avoid repetition of description, it will not be described further herein.

[0133] FIG. 12 is a schematic diagram of the hardware structure of a terminal for realizing the embodiment of the present application.

[0134] This terminal 1200 includes components such as, but not limited to, a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, and a processor 1210.

[0135] As can be understood by those skilled in the art, the terminal 1200 may further include a power source (such as a battery) for supplying power to each component. The power source may be logically connected to the processor 1210 by a power management system, so that functions such as charge and discharge management and power consumption management can be realized by the power management system. The terminal structure shown in FIG. 12 does not constitute a limitation on the terminal. The terminal may include more or fewer components than those shown, or a combination of some components, or different arrangements of components, which will not be described further herein.

[0136] It should be understood that in the embodiments of the present application, the input unit 1204 may include a Graphics Processing Unit (GPU) 12041 and a microphone 12042. The graphics processor 12041 processes the image data of a still image or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 1206 may include a display panel 12061, and the display panel 12061 may be arranged in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1207 includes a touch panel 12071 and other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 may include two parts: a touch detection device and a touch controller. The other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, an operation lever, and will not be further described herein.

[0137] In the embodiments of the present application, after receiving the downlink data from the network side device, the radio frequency unit 1201 causes the processor 1210 to process it, and also transmits the uplink data to the network side device. Generally, the radio frequency unit 1201 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.

[0138] The memory 1209 may be used to store software programs or instructions, and various data. The memory 1209 may mainly include a program or instruction storage area and a data storage area. Here, the program or instruction storage area can store an operating system, application programs or instructions required for at least one function (for example, a voice playback function, an image playback function, etc.). Note that the memory 1209 may include a high-speed random access memory and may also include a non-volatile memory. Here, 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, it may be at least one magnetic disk memory device, a flash memory device, or other non-volatile solid-state memory devices.

[0139] The processor 1210 may include one or more processing units. Optionally, the processor 1210 may integrate an application processor and a modem processor. Here, the application processor mainly processes an operating system, a user interface, application programs or instructions, etc., and the modem processor mainly processes wireless communication, for example, a baseband processor. As can be understood, the modem processor may not be integrated into the processor 1210.

[0140] Here, the radio frequency unit 1201 receives first downlink control information DCI for instructing physical downlink control channel PDCCH skipping, and the processor 1210 is used to determine a first operation based on the first DCI. The first operation includes at least one of the state of the bandwidth part BWP deactivation timer after receiving the first DCI, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period, and the PDCCH monitoring operation and the BWP switching operation when the PDCCH skipping and BWP switching collide.

[0141] When the terminal provided by the embodiment of the present application receives the first DCI for instructing PDCCH skipping, it can determine a first operation based on the first DCI. The first operation includes at least one of the state of the bandwidth part BWP deactivation timer after receiving the first DCI, the PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period, and the PDCCH monitoring operation and the BWP switching operation when the PDCCH skipping and BWP switching collide. The embodiment of the present application can solve the problem that transmission problems are likely to occur due to the inconsistent understanding between the terminal and the network-side device when the PDCCH skipping and BWP switching collide through the first operation, and can improve the effectiveness of communication.

[0142] The terminal 1200 according to the embodiment of the present application can implement each process in the embodiment of the PDCCH monitoring method and achieve the same technical effect. To avoid repetition of the description, it will not be described further here.

[0143] Specifically, the embodiments of the present application further provide a network-side device. As shown in FIG. 13, this network-side device 1300 includes an antenna 131, a radio frequency device 132, and a baseband device 133. The antenna 131 is connected to the radio frequency device 132. In the uplink direction, the radio frequency device 132 receives information via the antenna 131 and transmits the received information to the baseband device 133 for processing. In the downlink direction, the baseband device 133 processes the information to be transmitted, transmits it to the radio frequency device 132, and the radio frequency device 132 processes the received information and then sends it out via the antenna 131.

[0144] The frequency band processing device may be located in the baseband device 133. In the above embodiments, the method executed by the network-side device can be realized by the baseband device 133. This baseband device 133 includes a processor 134 and a memory 135.

[0145] The baseband device 133 may include, for example, at least one baseband board. A plurality of chips are installed on this baseband board. As shown in FIG. 13, one of the chips is, for example, the processor 134, which is connected to the memory 135, calls the program in the memory 135, and executes the operations of the network-side device shown in the embodiments of the above method.

[0146] This baseband device 133 may further include a network interface 136, which is used for information exchange with the radio frequency device 132. This interface is, for example, a common public radio interface (abbreviated as CPRI).

[0147] Specifically, the network-side device according to an embodiment of the present invention further includes instructions or programs stored in the memory 135 and executable by the processor 134. The processor 134 calls the instructions or programs in the memory 135 and executes the method executed by each module shown in FIG. 10, and can achieve the same technical effect. However, to avoid repetition of the description, it will not be described further herein.

[0148] The embodiment of the present application further provides a readable storage medium, which may be volatile or non-volatile. Programs or instructions are stored on the readable storage medium. When these programs or instructions are executed by a processor, each process in the embodiment of the PDCCH monitoring method is realized, and the same technical effect can be achieved. However, to avoid repetition of the description, it will not be described further herein.

[0149] Here, the processor may be the processor in the terminal described in the above embodiment. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0150] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor runs programs or instructions and is used to realize each process in the embodiment of the above PDCCH monitoring method, and can achieve the same technical effect. However, to avoid repetition of the description, it will not be described further herein.

[0151] It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-level chip, a system chip, a chip system, a system-on-chip, etc.

[0152] Embodiments of the present application further provide a computer program product, where the computer program product is stored in a non-volatile storage medium, and the computer program product is executed by at least one processor to implement each process in the embodiments of the above PDCCH monitoring method and achieve the same technical effects. To avoid repetition of the description, it will not be described further here.

[0153] Embodiments of the present application further provide a communication device, where the communication device can implement each process in the embodiments of the above PDCCH monitoring method and achieve the same technical effects. To avoid repetition of the description, it will not be described further here.

[0154] It should be noted that in this specification, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive "comprising", 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 elements specific to such a process, method, article or device. When there is no further limitation, for an element limited by the phrase "comprising one...", it is not excluded that there are other same elements in the process, method, article or device comprising this element. It should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to executing functions in the order shown or discussed, and may include executing functions in a basically simultaneous manner or in a reverse order based on the related functions. For example, a method described in a procedure different from the described one can be executed, and various steps can be added, omitted or combined. Also, features described with reference to some examples can be combined in other examples.

[0155] As will be clearly understood by those skilled in the art from the description of the above embodiments, the method of the above embodiments can be realized in the form of software and the necessary general-purpose hardware platform. Of course, it may also be realized by hardware, but in many cases, the former is a more preferred embodiment. Based on such an understanding, the technical solution of the present application may, in essence, or the part that has contributed to the prior art, be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for causing a terminal (which may be a mobile phone, computer, server, air conditioner or network-side device, etc.) to execute the methods described in the embodiments of the present application.

[0156] The above has described the embodiments of the present application in conjunction with the drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely exemplary and not restrictive. Those skilled in the art can make many forms without departing from the spirit of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A method for PDCH monitoring used in a terminal, comprising: receiving first downlink control information DCI for instructing physical downlink control channel PDCH skipping; determining a first operation based on the first DCI, the first operation including: a PDCH monitoring operation when a BWP switching instruction is obtained during a PDCH skipping period.

2. The PDCH monitoring operation when a BWP switching instruction is obtained during the PDCH skipping period includes: when a BWP switching instruction is obtained during the PDCH skipping period, stopping the PDCH skipping within the BWP before switching and not performing the PDCH skipping within the target BWP after switching, the method according to claim 1.

3. The PDCH monitoring operation when a BWP switching instruction is obtained during the PDCH skipping period includes: when a BWP switching instruction is obtained during the PDCH skipping period, temporarily stopping the PDCH skipping within the BWP before switching and continuing the PDCH skipping within the target BWP after switching, the method according to claim 1.

4. The time length of the PDCH skipping period within the target BWP is obtained based on the remaining number of time units and the time length of each time unit, wherein the remaining number of time units is obtained based on at least one of the total number of time units occupied by the PDCH skipping, the number of time units occupied by the PDCH skipping within the BWP before switching, and the number of time units occupied by the delay during BWP switching, and / or the time length of each time unit is obtained based on either the subcarrier spacing SCS of the BWP before switching or the SCS of the target BWP, the method according to claim 3.

5. The first DCI is not used to instruct at least one of BWP switching, secondary cell sleep, and search space group switching, the method according to claim 1.

6. The method further includes receiving a second DCI, the second DCI being: It is used to instruct at least one of BWP switching, secondary cell sleep, and search space group switching, where the second DCI is not used to instruct PDCCH skipping, the method according to claim 1.

7. The first DCI includes first indication information and second indication information, the first indication information is used to instruct the PDCCH skipping, and the second indication information is used to instruct at least one of BWP switching, secondary cell sleep, and search space group switching, where when the first indication information is enabled, the second indication information is not enabled, and / or when the second indication information is enabled, the first indication information is not enabled, the method according to claim 1.

8. A PDCCH monitoring method used for a network-side device, transmitting a first downlink control information DCI for instructing PDCCH skipping, and determining a first operation of a terminal based on the first DCI, where the first operation includes a PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period, a PDCCH monitoring method.

9. The PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period includes stopping the PDCCH skipping within the BWP before switching and not performing the PDCCH skipping within the target BWP after switching when a BWP switching instruction is obtained during the PDCCH skipping period, the method according to claim 8.

10. The PDCCH monitoring operation when a BWP switching instruction is obtained during the PDCCH skipping period includes temporarily stopping the PDCCH skipping within the BWP before switching and continuing the PDCCH skipping within the target BWP after switching when a BWP switching instruction is obtained during the PDCCH skipping period, the method according to claim 8.

11. The time length of the PDCCH skipping period within the target BWP is obtained based on the remaining number of time units and the time length of each time unit. The remaining number of time units is obtained based on at least one of the total number of time units occupied by the PDCCH skipping, the number of time units occupied by the PDCCH skipping within the BWP before switching, and the number of time units occupied by the delay at the time of BWP switching, and / or The method according to claim 10, wherein the time length of each of the time units is obtained based on either the subcarrier spacing SCS of the BWP before switching or the SCS of the target BWP. **Claim 12** The method according to claim 8, wherein the first DCI is not used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching. **Claim 13** including transmitting a second DCI used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching, wherein the second DCI is not used to indicate PDCCH skipping, according to the method of claim 8. **Claim 14** The first DCI includes first indication information and second indication information, the first indication information is used to indicate the PDCCH skipping, and the second indication information is used to indicate at least one of BWP switching, secondary cell sleep, and search space group switching, wherein when the first indication information is enabled, the second indication information is not enabled, and / or when the second indication information is enabled, the first indication information is not enabled, according to the method of claim 8. **Claim 15** A terminal comprising a processor, a memory, and a program or instruction stored in the memory and executable by the processor, wherein when the program or instruction is executed by the processor, the terminal realizes the PDCCH monitoring method according to any one of claims 1 to 7. **Claim 16** A network-side device comprising a processor, a memory, and a program or instruction stored in the memory and executable by the processor, wherein when the program or instruction is executed by the processor, the network-side device realizes the PDCCH monitoring method according to any one of claims 8 to 14.

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