WO2024239173A1 - Method and apparatus for transmitting downlink control information, and storage medium - Google Patents

Abstract

The present disclosure provides a method and apparatus for transmitting downlink control information (DCI), and a storage medium. The method comprises: within a time-domain interval where a first monitoring occasion (MO) overlaps with a first time period, monitoring DCI sent by a network device; wherein the first MO is an MO corresponding to first-format DCI a user equipment is configured to monitor, the user equipment is configured with discontinuous reception (C-DRX) on a first carrier, and the first time period is an inactive period of cell discontinuous transmission (DTX) configured by the network device on the first carrier. In the method of the present disclosure, when the network device applies the cell DTX, the user equipment is configured with the C-DRX; and in the case that the user equipment is configured to monitor the first-format DCI, the user equipment can also maintain necessary downlink information monitoring, so that when in an energy-saving state the user equipment can be woken up promptly.

Description

A method, device and storage medium for transmitting downlink control information Technical Field

The present disclosure relates to the field of wireless communication technology, and in particular to a method, device and storage medium for transmitting downlink control information.

Background Art

Network energy saving is one of the topics in Release 18 (R18) of the 3rd Generation Partnership Project (3GPP). The network energy saving project aims to study technologies to reduce the energy consumption of network equipment. One possible way to save energy in the network is discontinuous transmission (DTX) of cell base stations. In addition, a way to save energy in user equipment (UE) is connected discontinuous reception (C-DRX) defined in R15.

Summary of the invention

The present disclosure provides a method, an apparatus and a storage medium for transmitting downlink control information.

In a first aspect, the present disclosure provides a method for monitoring downlink control information, which is performed by a user equipment, and the method includes:

In a time domain interval where the first monitoring opportunity MO overlaps with the first time period, monitoring downlink control information DCI sent by the network device;

Among them, the first MO is the MO corresponding to the first format DCI that the user equipment is configured to monitor, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is the non-activation period of discontinuous transmission DTX of the cell configured by the network device on the first carrier.

In a second aspect, the present disclosure provides a method for sending downlink control information, which is performed by a network device, and the method includes:

In a second time period, sending a first format DCI to the user equipment;

Wherein, the second time period includes the first MO, or includes a time domain interval in which the first MO overlaps with the first time period;

The first MO is an MO corresponding to a first format DCI that the user equipment is configured to monitor, and the user equipment is configured with discontinuous reception C-DRX on a first carrier; the first time period is a non-activation time period of a cell DTX configured by the network device on the first carrier.

In a third aspect, the present disclosure provides a device for monitoring downlink control information, the device comprising:

A transceiver module, configured to monitor downlink control information DCI sent by a network device in a time domain interval where a first monitoring opportunity MO overlaps with a first time period;

Among them, the first MO is the MO corresponding to the first format DCI that the user equipment is configured to monitor, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is the non-activation period of discontinuous transmission DTX of the cell configured by the network device on the first carrier.

In a fourth aspect, the present disclosure provides a device for sending downlink control information, the device comprising:

A transceiver module, configured to send a first format DCI to a user equipment in a second time period;

Wherein, the second time period includes the first MO, or includes a time domain interval in which the first MO overlaps with the first time period;

The first MO is an MO corresponding to a first format DCI that the user equipment is configured to monitor, and the user equipment is configured with discontinuous reception C-DRX on a first carrier; the first time period is a non-activation time period of a cell DTX configured by the network device on the first carrier.

In a fifth aspect, the present disclosure provides a communication system, including: a user device and a network device;

The user equipment is used to execute the method of the first aspect;

The network device is used to execute the method of the second aspect.

In a sixth aspect, the present disclosure provides a communication device, including:

one or more processors;

The processor is used to call instructions to enable the communication device to execute the method described in the first aspect, or execute the method described in the second aspect.

In a seventh aspect, the present disclosure provides a storage medium, wherein the storage medium stores instructions.

When the instruction is executed on the communication device, the communication device executes the method according to the first aspect, or executes the method according to the second aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of this application. The illustrative embodiments of the embodiments of the present disclosure and their descriptions are used to explain the embodiments of the present disclosure and do not constitute an improper limitation on the embodiments of the present disclosure. In the drawings:

The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the embodiments of the present disclosure, and together with the description, serve to explain the principles of the embodiments of the present disclosure.

FIG1 is a schematic diagram of a wireless communication system architecture provided by an embodiment of the present disclosure;

FIG2a is an interactive schematic diagram of a method for transmitting downlink control information provided by an embodiment of the present disclosure;

FIG2b is a schematic diagram of a C-DRX provided by an embodiment of the present disclosure;

FIG3a is a flow chart of a method for monitoring downlink control information provided by an embodiment of the present disclosure;

FIG3b is a flow chart of a method for monitoring downlink control information provided by an embodiment of the present disclosure;

FIG4a is a flow chart of a method for sending downlink control information provided by an embodiment of the present disclosure;

FIG4b is a flow chart of a method for sending downlink control information provided by an embodiment of the present disclosure;

FIG5a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

FIG5b is a schematic diagram of a communication device according to an embodiment of the present disclosure;

FIG6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

FIG6 b is a schematic diagram of a communication device according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

The embodiments of the present disclosure provide a method, an apparatus, and a storage medium for transmitting downlink control information.

The embodiments of the present disclosure are not exhaustive, but are only illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

In each embodiment of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and/or descriptions between the embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form a new embodiment based on their internal logical relationships.

The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun after the article may be understood as a singular expression or a plural expression.

In the embodiments of the present disclosure, “plurality” refers to two or more.

In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

In the embodiments of the present disclosure, descriptions such as "at least one of A, B, C...", "A and/or B and/or C...", etc. include the case where any one of A, B, C... exists alone, and also include the case where any one of A, B, C... exists alone. Any combination of multiple situations, each of which can exist separately; for example, "at least one of A, B, and C" includes the situations of A alone, B alone, C alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C; for example, A and/or B includes the situations of A alone, B alone, and the combination of A and B.

In some embodiments, the description methods such as "in one case A, in another case B", "in response to one case A, in response to another case B", etc. may include the following technical solutions according to the situation: A is executed independently of B, that is, A in some embodiments; B is executed independently of A, that is, B in some embodiments; A and B are selectively executed, that is, A and B are selected for execution in some embodiments; A and B are both executed, that is, A and B in some embodiments. When there are more branches such as A, B, C, etc., the above is also similar.

The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects. The statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields", and the "first" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes may be the same or different. For example, if the description object is "device", then the "first device" and the "second device" may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" may be the same information or different information, and their contents may be the same or different.

In some embodiments, “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

In some embodiments, terms such as "in response to ...", "in response to determining ...", "in the case of ...", "at the time of ...", "when ...", "if ...", "if ...", etc. can be used interchangeably.

In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "no more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node (node)", "access point (access point)", "transmission point (TP)", "reception point (RP)", "transmission/reception point (TRP)" and other terms can be used interchangeably.

In some embodiments, the term “terminal”, “terminal device”, “user equipment (UE)”, “user terminal”, “mobile station (MS)”, “mobile terminal (MT)”, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client The terms are interchangeable.

In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the access network device, the core network device, or the network device and the communication between the terminals is replaced by the communication between multiple terminals (for example, it can also be referred to as device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, the language such as "uplink" and "downlink" can also be replaced by the language corresponding to the communication between the terminals (for example, "side"). For example, the uplink channel, the downlink channel, etc. can be replaced by the side channel, and the uplink, the downlink, etc. can be replaced by the side link.

In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may also be configured to have a structure that has all or part of the functions of the terminal.

In some embodiments, "obtain", "obtain", "get", "receive", "transmit", "send and/or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from a protocol, obtaining by self-processing, autonomous implementation, etc.

In some embodiments, terms such as "send", "transmit", "report", "send", "transmit", "send and/or receive" can be used interchangeably.

In some embodiments, "predetermined" or "preset" may be interpreted as being pre-specified in a protocol, etc., or may be interpreted as a pre-set action performed by a device, etc.

In some embodiments, determining can be interpreted as judging, deciding, calculating, computing, processing, deriving, investigating, searching, looking up, searching, inquiring, ascertaining, receiving, transmitting, inputting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, “assuming,” “expecting,” “considering,” broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but is not limited to the foregoing.

In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited to this.

In some embodiments, "network" may be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and/or frequency domain resources, or as not performing subsequent processing on the data after receiving the data; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the sent content.

In some embodiments, acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

In some embodiments, data, information, etc. may be obtained with the user's consent.

In addition, each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.

FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

As shown in FIG. 1 , a communication system 100 includes a user equipment 101 and a network device 102 .

In some embodiments, the user device 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, etc. At least one of terminal equipment, wireless terminal equipment in transportation safety, wireless terminal equipment in a smart city, and wireless terminal equipment in a smart home, but not limited to these.

In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

In some embodiments, the technical solution of the present disclosure may be applicable to the Open RAN architecture. In this case, the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

In some embodiments, the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit). The CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.

In some embodiments, the core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. A person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG. 1 , or a partial body thereof, but are not limited thereto.

The entities shown in Figure 1 are examples. The communication system may include all or part of the entities in Figure 1, and may also include other entities outside Figure 1. The number and form of the entities are arbitrary. The connection relationship between the entities is an example. The entities may be connected or disconnected, and the connection may be in any manner, which may be direct or indirect, and may be wired or wireless.

The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine-to-Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), systems using other communication methods, and next-generation systems based on them. In addition, multiple systems can also be combined (for example, LTE or combination of LTE-A and 5G, etc.) applications.

FIG2a is an interactive schematic diagram of a method for transmitting downlink control information according to an embodiment of the present disclosure. As shown in FIG2a, an embodiment of the present disclosure relates to a method for transmitting downlink control information, which is used in a communication system 100, and the method includes:

Step S2101: the network device 102 sends first information to the user equipment 101.

In some embodiments, the first information is used to indicate whether the user equipment 101 needs to monitor the DCI within the time domain interval.

In some embodiments, the network device 102 sends a higher layer signaling, and the higher layer signaling includes, indicates or determines the first information.

In one example, the high-level signaling includes first information, which occupies 1 bit. When the value of the 1 bit is 1, it indicates that the user equipment 101 needs to monitor the DCI within the time domain interval; when the value of the 1 bit is 0, it indicates that the user equipment 101 does not need to monitor the DCI within the time domain interval.

In another example, the setting parameter in the high-layer signaling corresponds to the first information. When the setting parameter is configured, it indicates that the user equipment 101 needs to monitor DCI within the time domain interval; when the setting parameter is not configured, it indicates that the user equipment 101 does not need to monitor DCI within the time domain interval.

Alternatively, in this example, when the setting parameter is configured as the first option, it indicates that the user equipment 101 needs to monitor the DCI in the time domain interval; when the setting parameter is configured as the second option, it indicates that the user equipment 101 does not need to monitor the DCI in the time domain interval. The first option may be enable, and the second option may be disable.

In some embodiments, the time domain interval is a time domain interval in which the first time period overlaps with a first monitoring occasion (MO). The description of the first time period and the first MO can be found in the description of the following embodiments.

In some embodiments, the user equipment 101 receives first information sent by the network equipment 102 .

Step S2102: In a second time period, the network device 102 sends a first format DCI to the user equipment 101.

In some embodiments, the second time period includes the first MO, or includes a time domain interval in which the first MO overlaps with the first time period.

In some embodiments, the network device 102 may send a first-format DCI to the user equipment on a first carrier, where the first carrier is a primary carrier.

In some embodiments, the network device 102 may send a first format DCI to the user equipment on the second carrier;

The second carrier is configured with a search space for sending the first format DCI.

In some embodiments, the second carrier is a secondary carrier in the cell group where the first carrier is located, and the user equipment is configured with multiple service carriers based on carrier aggregation CA. The cell group may include multiple cells, which may be multiple cells used for carrier aggregation or dual connectivity (DC). The cell group may be, for example, a master cell group (MCG) or a secondary cell group (SCG). For example, the master cell group is a plurality of service cells under a master node, and the secondary cell group is a plurality of service cells under a secondary node.

Step S2103, within the time domain interval where the first MO overlaps with the first time period, the user equipment 101 monitors the DCI sent by the network equipment 102.

In some embodiments, network device 102 configures cell DTX on the first carrier.

Optionally, the first time period is a non-activation period of the cell DTX configured by the network device 102 on the first carrier.

For example, the cell DTX of the network device 102 on the first carrier may include a working period and a dormant period, where the working period may also be referred to as a DTX-on period (DTX-on duration), and the dormant period may also be referred to as a DTX-off period (DTX-off duration). The first period may be the DTX-off period.

In the DTX-on period, the network device 102 is in the DTX activation period and needs to send downlink channels normally, such as sending the Physical Downlink Control Channel (PDCCH). In the DTX-off period, the network device 102 is in the DTX inactivation period and may not send certain downlink channels or downlink signals, such as not sending a specific PDCCH.

In some embodiments, the user equipment 101 is configured with C-DRX on the first carrier.

In one example, in C-DRX, the period during which the user equipment 101 does not monitor some downlink information such as PDCCH is a non-active period of C-DRX; the period during which the user equipment 101 normally monitors downlink information such as PDCCH is a non-active period of C-DRX. activation period.

Taking the periodic C-DRX shown in FIG2b as an example, a C-DRX cycle includes: a C-DRX sleep period (C-DRX off duration) and a C-DRX working period (C-DRX on duration). As shown in FIG2b, in a C-DRX configured with a long cycle (Long Cycle), the C-DRX cycle is longer. When a short cycle (Short Cycle) is nested in a long cycle, C-DRX also includes multiple short cycles appearing in the long cycle. The user equipment 101 monitors downlink information according to the configured C-DRX working period. If the user equipment 101 is configured with both long and short cycle C-DRX, after the short cycle C-DRX is started, the user equipment 101 monitors downlink information according to the long cycle C-DRX after the short cycle timer (drx-ShortCycleTimer) times out.

In this example, the network device 102 may configure the time domain parameters of C-DRX, such as at least one of the parameters such as the C-DRX cycle, the duration of the C-DRX sleep period, and the duration of the C-DRX working period.

In this example, the timer corresponding to the C-DRX working period is drx-onDurationTimer, which is used to indicate the duration of the C-DRX working period and is started every time the start time of the C-DRX working period is reached.

Optionally, the first MO is an MO corresponding to the first format DCI that the user equipment 101 is configured to monitor.

Optionally, the first format DCI is, for example, DCI 2-6.

Optionally, the DCI 2-6 is transmitted in the PDCCH and sent before the start of the C-DRX working period in each C-DRX cycle to indicate whether the user equipment 101 normally starts the C-DRX working period after the DCI 2-6.

Optionally, in the enhancement of C-DRX, DCI 2-6 is used to send a wake-up indication. When the wake-up indication carried in DCI 2-6 corresponds to indicating that the user equipment 101 wakes up, the user equipment 101 will start a C-DRX working period after the wake-up indication; when the wake-up indication corresponds to indicating that the user equipment 101 does not wake up, the user equipment 101 will not start the C-DRX working period after the wake-up indication.

In some embodiments, within the time domain interval, the user device 101 can monitor the first format DCI, such as DCI 2-6.

In some embodiments, the first MO is before the working period of C-DRX; wherein, the time interval between the start time of the user equipment 101 monitoring the DCI and the start time of the working period of C-DRX is a first time length.

Optionally, the first duration is configured by the network device 102 .

For example, the network device configures the first duration through high-layer signaling.

In some embodiments, step S2103 may adopt step S2103-1, specifically:

Step S2103-1: In the time domain interval where the first MO overlaps with the first time period, the user equipment 101 monitors the first format DCI sent by the network equipment 102 on the first carrier.

Optionally, the first carrier is a main carrier.

Optionally, in a carrier aggregation (CA) scenario, the user equipment 101 may be configured with multiple serving cells, and the network device 102 may send DCI 2-6 only on the primary serving cell or the primary carrier, so the user equipment 101 may monitor DCI 2-6 only in the time domain interval on the primary carrier.

In some embodiments, step S2102 may adopt step S2103-2, specifically:

Step S2103-2, in the time domain interval where the first MO overlaps with the first time period, the user equipment 101 monitors the first format DCI sent by the network device 102 on the second carrier;

Among them, the second carrier is configured with a search space for sending the first format DCI.

Optionally, the second carrier may be different from the first carrier.

Optionally, the second carrier is a secondary carrier in the cell group where the first carrier is located, and the user equipment 101 is configured with multiple service carriers based on carrier aggregation CA.

In some embodiments, when the method includes step S2101, when the network device 102 instructs the user equipment 101 to monitor the DCI within the time domain interval through the first information, the user equipment 101 executes step S2102, S2102-1 or S2102-2.

Step S2104: the user equipment 101 does not monitor the DCI in the time domain interval.

In some embodiments, when the method includes step S2101, when the first information indicates that the user equipment 101 When it is not necessary to monitor the DCI in the time domain interval, the user equipment 101 executes step S2103 without executing steps S2102, S2102-1 or S2102-2.

In some embodiments, steps S2101 and S2104 are optional.

In some embodiments, steps S2103 and S2104 are parallel implementation steps, and one of the steps can be executed according to the first information.

In some embodiments, the order of steps S2102 and S2103 is for illustration only.

In some embodiments, when the method includes step S2104, steps S2102 and S2103 may not be included, that is, the method includes steps S2101 and S2104.

In some embodiments, the method includes steps S2102 and S2103.

In some embodiments, the method includes steps S2101, S2102 and S2103.

In the embodiment of the present disclosure, the user device 101 can normally monitor the DCI within the time domain interval where the first MO overlaps with the first time period, so that when the network device 102 applies cell DTX, the user device 101 is configured with C-DRX, and the user device 101 is configured to monitor the first format DCI, the user device 101 can also maintain necessary downlink information monitoring so that it can be woken up in time in an energy-saving state.

FIG3a is a flow chart of a method for monitoring downlink control information according to an embodiment of the present disclosure. As shown in FIG3a, an embodiment of the present disclosure relates to a method for monitoring downlink control information, which is used for user equipment 101, and the method includes:

Step S3101 , the user equipment 101 receives first information sent by the network equipment 102 .

In some embodiments, the implementation of step S3101 may refer to the relevant implementation of step S2101 and will not be repeated here.

In some embodiments, the first information is used to indicate whether the user equipment needs to monitor the DCI within the time domain interval.

In some embodiments, the network device 102 instructs the user equipment 101 to monitor the DCI in the time domain interval through the first information. In one example, when the first information indicates that the user equipment 101 needs to monitor the DCI in the time domain interval, the user equipment 101 monitors and receives the DCI in the time domain interval, such as performing the following step S3102.

Step S3102: In the time domain interval where the first monitoring opportunity MO overlaps with the first time period, the user equipment 101 monitors the DCI sent by the network equipment 102.

In some embodiments, the implementation of step S3102 may refer to the relevant implementation of step S2103 and will not be repeated here.

In some embodiments, the first MO is the MO corresponding to the first format DCI that the user equipment is configured to monitor, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is the non-activated time period of discontinuous transmission DTX of the cell configured by the network device on the first carrier.

In some embodiments, when the first information indicates that the user equipment monitors DCI within a time domain interval, the user equipment 101 monitors and receives DCI 2-6 within the time domain interval, such as executing step S3102.

In some embodiments, the first MO is before the working period of C-DRX; wherein, the time interval between the start time of the user equipment 101 monitoring the DCI and the start time of the working period of C-DRX is a first time length.

Optionally, the first duration is configured by the network device 102 .

For example, the network device configures the first duration through high-layer signaling.

In some embodiments, step S3102 may adopt step S3102-1, specifically:

Step S3102-1, within the time domain interval where the first MO overlaps with the first time period, the user equipment 101 monitors the first format DCI sent by the network equipment 102 on the first carrier.

Optionally, the first carrier is a main carrier.

Optionally, the implementation of step S3102-1 may refer to the relevant implementation of step S2103-1.

In some embodiments, step S3102 may adopt step S3102-2, specifically:

Step S3102-2, in the time domain interval where the first MO overlaps with the first time period, the user equipment 101 monitors the first format DCI sent by the network device 102 on the second carrier;

The second carrier is configured with a search space for sending the first format DCI.

Optionally, the second carrier is a secondary carrier in the cell group where the first carrier is located, and the user equipment 101 is configured with multiple service carriers based on carrier aggregation CA.

Optionally, the implementation of step S3102-2 may refer to the relevant implementation of step S2103-2.

Step S3103: the user equipment 101 does not monitor the DCI in the time domain interval.

In some embodiments, the implementation of step S3103 may refer to the relevant implementation of step S2104 and will not be repeated here.

The first information indicates that the user equipment does not need to monitor the DCI in the time domain interval.

In some embodiments, steps S3101 and S3103 are optional.

In some embodiments, the method includes steps S3102, S3102-1 or S3102-2.

In some embodiments, the method includes steps S3101 and S3102.

In some embodiments, the method includes steps S3101 and S3103.

In the embodiment of the present disclosure, the user device 101 can normally monitor the DCI within the time domain interval where the first MO overlaps with the first time period, so that when the network device 102 applies cell DTX, the user device 101 is configured with C-DRX, and the user device 101 is configured to monitor the first format DCI, the user device 101 can also maintain necessary downlink information monitoring so that it can be woken up in time in an energy-saving state.

FIG3b is a flow chart of a method for monitoring downlink control information according to an embodiment of the present disclosure. As shown in FIG3b, an embodiment of the present disclosure relates to a method for monitoring downlink control information, which is used for user equipment 101, and the method includes:

Step S3201: In the time domain interval where the first monitoring opportunity MO overlaps with the first time period, the user equipment 101 monitors the downlink control information DCI sent by the network equipment 102.

In some embodiments, the implementation of step S3201 may refer to the relevant implementations of steps S2103 and S3102, which will not be repeated here.

In some embodiments, the first MO is the MO corresponding to the first format DCI that the user equipment is configured to monitor, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is the non-activated time period of discontinuous transmission DTX of the cell configured by the network device on the first carrier.

In some embodiments, step S3201 may adopt step S3201-1, specifically:

Step S3201-1: In the time domain interval where the first MO overlaps with the first time period, the user equipment 101 monitors the first format DCI sent by the network equipment 102 on the first carrier.

Optionally, the first carrier is a main carrier.

Optionally, the implementation of step S3201-1 may refer to the relevant implementation of step S2103-1.

In some embodiments, step S3201 may adopt step S3201-2, specifically:

Step S3201-2: In the time domain interval where the first MO overlaps with the first time period, monitor the first format DCI sent by the network device on the second carrier.

Optionally, the implementation of step S3201-2 may refer to the related implementation of step S2103-2.

Optionally, the second carrier is configured with a search space for sending DCI in the first format.

Optionally, the second carrier is a secondary carrier in the cell group where the first carrier is located, and the user equipment is configured with multiple service carriers based on carrier aggregation CA.

In some embodiments, the first MO is before the working period of C-DRX;

The first duration is the time interval between the start time of the user equipment monitoring the DCI and the start time of the C-DRX working period.

Optionally, the first duration is configured by the network device.

In some embodiments, the network device instructs the user equipment to monitor the DCI within the time domain interval through the first information.

In some embodiments, before step S3201, the following step S3200 is also included, specifically:

Step S3200: The user equipment 101 receives first information sent by the network device 102, where the first information is used to indicate whether the user equipment needs to monitor DCI within a time domain interval.

Optionally, the implementation of step S3200 may refer to the relevant implementation of step S2101, which will not be repeated here.

Optionally, when the first information indicates that the user equipment monitors the DCI in the time domain interval, the user equipment 101 monitors the DCI in the time domain interval. Monitor and receive DCI 2-6 within the interval, such as executing step S3201.

When the first information indicates that the user equipment does not need to monitor the DCI in the time domain interval, the method adopts step S3201' to replace the aforementioned step S3201, wherein:

Step S3201', the user equipment 101 does not monitor the DCI in the time domain interval.

Optionally, the user equipment 101 may determine whether it is necessary to monitor the DCI in the overlapping time domain interval according to the first information sent by the network device 102, so that timely communication can be achieved while ensuring the energy-saving state.

FIG4a is a flow chart of a method for sending downlink control information according to an embodiment of the present disclosure. As shown in FIG4a, an embodiment of the present disclosure relates to a method for sending downlink control information, which is used in a network device 102, and the method includes:

Step S4101: the network device 102 sends first information to the user equipment 101.

In some embodiments, the implementation of step S4101 may refer to the relevant implementation of step S2101 and will not be repeated here.

In some embodiments, the first information is used to indicate whether the user equipment needs to monitor the DCI within the time domain interval.

Step S4102: the network device 102 sends a first format DCI to the user equipment 101 in a second time period.

In some embodiments, the implementation of step S4102 may refer to the relevant implementation of step S2102 and will not be repeated here.

In some embodiments, the second time period includes the first MO, or includes a time domain interval in which the first MO overlaps with the first time period.

In some embodiments, the first MO is the MO corresponding to the first format DCI that the user equipment is configured to monitor, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is the non-activation period of the cell DTX configured by the network device on the first carrier.

In some embodiments, step S4101 may adopt step S4102-1, specifically:

Step S4102-1: the network device 102 sends a first format DCI to the user equipment 101 on the first carrier in a second time period.

Optionally, the implementation of step S4102-1 may refer to the relevant implementation of step S2103-1, which will not be repeated here.

Optionally, the first carrier is a main carrier.

In some embodiments, step S4102 may adopt step S4102-2, specifically:

Step S4102-2: the network device 102 sends a first format DCI to the user equipment 101 on the second carrier in a second time period.

Optionally, the implementation of step S4102-2 may refer to the relevant implementation of step S2103-2, which will not be repeated here.

Optionally, the second carrier is configured with a search space for sending DCI in the first format.

In some embodiments, the second carrier is a secondary carrier in the cell group where the first carrier is located, and the user equipment is configured with multiple serving carriers based on carrier aggregation CA.

In some embodiments, the first MO is before the working period of C-DRX;

The first duration is the time interval between the start time of the user equipment monitoring the DCI and the start time of the C-DRX working period.

Optionally, the first duration is configured by the network device.

In some embodiments, the network device instructs the user equipment to monitor the DCI within the time domain interval through the first information.

In some embodiments, step S4101 is optional.

In some embodiments, the method includes step S4102.

In the embodiment of the present disclosure, in a scenario where the network device 102 applies cell DTX, the user equipment 101 is configured with C-DRX, and the user equipment 101 is configured to monitor the first format DCI, the user equipment 101 may also maintain necessary downlink information monitoring so as to be able to wake up in time in an energy-saving state.

FIG4b is a flow chart of a method for sending downlink control information according to an embodiment of the present disclosure. As shown in FIG4b, an embodiment of the present disclosure relates to a method for sending downlink control information, which is used in a network device 102, and the method includes:

Step S4201: the network device 102 sends a first format DCI to the user equipment 101 in a second time period.

In some embodiments, the implementation of step S4201 may refer to the related implementations of steps S2102 and S4202, which will not be repeated here.

In some embodiments, the second time period includes the first MO, or includes a time domain interval in which the first MO overlaps with the first time period.

In some embodiments, the first MO is the MO corresponding to the first format DCI that the user equipment is configured to monitor, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is the non-activation period of the cell DTX configured by the network device on the first carrier.

In some embodiments, the implementation of step S4201 may also refer to the relevant implementation of step S4102-1 or S4102-2, which will not be repeated here.

In some embodiments, the first MO is before the working period of C-DRX;

The first duration is the time interval between the start time of the user equipment monitoring the DCI and the start time of the C-DRX working period.

Optionally, the first duration is configured by the network device.

In some embodiments, the network device instructs the user equipment to monitor the DCI within the time domain interval through the first information.

In some embodiments, the method further includes step S4200:

Step S4200: the network device 102 sends first information to the user equipment 101.

Optionally, the implementation of step S4200 may refer to the relevant implementation of step S2101, which will not be repeated here.

In some embodiments, when the first information indicates that the user equipment does not need to monitor DCI in the time domain interval, the network device 102 does not send DCI 2-6 in the time domain interval, and the user equipment 101 may not monitor DCI 2-6. Thus, both the network device 102 and the user equipment 101 can maintain an energy-saving state.

To facilitate understanding of the embodiments of the present disclosure, some specific examples are listed below:

Example 1:

If the base station is configured with cell DTX on the first carrier, and the UE is configured with C-DRX on the first carrier, and the UE is configured to monitor DCI 2-6 (wake-up indication) on the first carrier, and the monitoring occasion (MO) of DCI 2-6 overlaps with the cell DTX non-active period on the first carrier.

In the overlapping area, the UE monitors DCI 2-6 on the MO of DCI 2-6.

In this example, the base station may send DCI 2-6 in the overlapping area.

For example, before the on-duration of each C-DRX cycle, the UE will monitor DCI 2-6 within a configured time range, which may include multiple (M) DCI 2-6 MOs, and the base station may send DCI 2-6 on any one or more MOs. If the overlapping area only includes K of the M DCI 2-6 MOs (M>K), the base station may send DCI on K MOs or in another (M-K) MOs. Since the UE cannot determine the MO where the base station sends DCI 2-6, the UE needs to monitor these K MOs.

Example 2:

Based on Example 1, the UE monitors DCI 2-6 on the first carrier, where the first carrier is the main carrier.

Example 3:

Based on Example 1, if the UE is configured with CA, the UE monitors DCI 2-6 on the second carrier.

Correspondingly, the base station sends DCI 2-6 on the second carrier.

The second carrier is configured with a search space for sending DCI 2-6, and the second carrier is enabled to send DCI 2-6 only during the overlapping period. The second carrier is a secondary carrier in the same cell group as the first carrier.

Example 4:

If the base station configures cell DTX on the first carrier, and the UE is configured with C-DRX on the first carrier, and the UE is configured to monitor DCI 2-6 (wake-up indication) on the first carrier, the base station can configure through the first high-level parameter whether the terminal is to monitor DCI 2-6 in an area where the monitoring occasion (MO) of DCI 2-6 overlaps with the cell DTX non-active period on the first carrier.

If the first high-level parameter configuration indicates that monitoring is required, the terminal shall monitor DCI 2-6 in the overlapping area; otherwise, Not listening.

In some embodiments, the first high-level parameter corresponds to the first information in the aforementioned embodiments.

In the embodiments of the present disclosure, part or all of the steps and their optional implementations may be arbitrarily combined with part or all of the steps in other embodiments, or may be arbitrarily combined with optional implementations of other embodiments.

The embodiments of the present disclosure also provide a device for implementing any of the above methods, for example, a device is provided, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods. For another example, another device is provided, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

It should be understood that the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device. Alternatively, the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits. The hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in the form of hardware circuits.

In the disclosed embodiments, the processor is a circuit with signal processing capability. In one implementation, the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration may be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

Fig. 5a is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure, and the communication device can realize the functions of the user equipment 101. As shown in Fig. 5a, the device includes: a transceiver module 5101, and the transceiver module 5101 is used to monitor the downlink control information DCI sent by the network device in a time domain interval where the first monitoring opportunity MO overlaps with the first time period; wherein the first MO is the MO corresponding to the first format DCI that the user equipment is configured to monitor, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; and the first time period is a non-activated time period for discontinuous transmission DTX of the cell configured by the network device on the first carrier.

Optionally, the above-mentioned transceiver module 5101 is used to execute the steps related to sending and receiving messages performed by the user equipment 101 in any of the above methods, which will not be repeated here.

Optionally, the device further includes a processing module 5102, which is used to execute any of the above methods. The steps related to message processing performed by device 101 are not repeated here.

FIG5b is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure, and the communication device can realize the functions of the network device 102. As shown in FIG5b, the device includes: a transceiver module 5201, and the transceiver module 5201 is used to send a first format DCI to a user equipment in a second time period; wherein the second time period includes a first MO, or includes a time domain interval in which the first MO overlaps with the first time period; the first MO is an MO corresponding to the first format DCI that the user equipment is configured to monitor, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is a non-activation period of the cell DTX configured by the network device on the first carrier.

Optionally, the above-mentioned transceiver module 5201 is used to execute the steps related to transceiver performed by the network device 102 in any of the above methods, which will not be repeated here.

Optionally, the apparatus further includes: a processing module 5202, which is used to execute the processing-related steps performed by the network device 102 in any of the above methods, such as message generation, calculation processing and other related steps, which are not repeated here.

FIG6a is a schematic diagram of the structure of a communication device 6100 provided in an embodiment of the present disclosure. The communication device 6100 may be a network device (e.g., an access network device, a core network device, etc.), or a terminal (e.g., a user device, etc.), or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. The communication device 6100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

As shown in FIG6a, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and the communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program. The processor 6101 is used to call instructions so that the communication device 6100 executes any of the above methods.

In some embodiments, the communication device 6100 further includes one or more memories 6102 for storing instructions. Optionally, all or part of the memory 6102 may also be outside the communication device 6100.

In some embodiments, the communication device 6100 further includes one or more transceivers 6103. When the communication device 6100 includes one or more transceivers 6103, the communication steps such as sending and receiving in the above method are executed by the transceiver 6103, and the other steps are executed by the processor 6101.

In some embodiments, the transceiver may include a receiver and a transmitter, and the receiver and the transmitter may be separate or integrated. Optionally, the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

Optionally, the communication device 6100 further includes one or more interface circuits 6104, which are connected to the memory 6102. The interface circuit 6104 can be used to receive signals from the memory 6102 or other devices, and can be used to send signals to the memory 6102 or other devices. For example, the interface circuit 6104 can read instructions stored in the memory 6102 and send the instructions to the processor 6101.

The communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

FIG6b is a schematic diagram of the structure of a chip 6200 provided in an embodiment of the present disclosure. In the case where the communication device 6100 may be a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 6200 shown in FIG6b, but the present disclosure is not limited thereto. The chip 6200 includes one or more processors 6201, and the processor 6201 is used to call instructions so that the chip 6200 executes the above Either method.

In some embodiments, the chip 6200 further includes one or more interface circuits 6202, which are connected to the memory 6203. The interface circuit 6202 can be used to receive signals from the memory 6203 or other devices, and the interface circuit 6202 can be used to send signals to the memory 6203 or other devices. For example, the interface circuit 6202 can read instructions stored in the memory 6203 and send the instructions to the processor 6201. Optionally, the terms such as interface circuit, interface, transceiver pin, and transceiver can be replaced with each other.

In some embodiments, the chip 6200 further includes one or more memories 6203 for storing instructions. Optionally, all or part of the memory 6203 may be outside the chip 6200.

The present disclosure also provides a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 6100, the communication device 6100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.

The present disclosure also provides a program product, and when the program product is executed by the communication device 6100, the communication device 6100 executes any one of the above methods. Optionally, the program product is a computer program product.

The present disclosure also provides a computer program, which, when executed on a computer, enables the computer to execute any one of the above methods.

Industrial Applicability

In the method disclosed herein, the user equipment can normally monitor the DCI within the time domain interval where the first MO overlaps with the first time period, so that in the scenario where the network device applies cell DTX, the user equipment is configured with C-DRX, and the user equipment is configured to monitor the first format DCI, the user equipment can also maintain necessary downlink information monitoring so as to be able to wake up in time in an energy-saving state.

Claims (22)

A method for monitoring downlink control information, performed by a user equipment, the method comprising: In a time domain interval where the first monitoring opportunity MO overlaps with the first time period, monitoring downlink control information DCI sent by the network device; Among them, the first MO is the MO corresponding to the first format DCI configured for the user equipment, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is the non-activation period of discontinuous transmission DTX of the cell configured by the network device on the first carrier. The method according to claim 1, wherein the monitoring of downlink control information DCI sent by the network device comprises: Monitor a first-format DCI sent by the network device on the first carrier, where the first carrier is a main carrier. The method according to claim 1, wherein the monitoring of downlink control information DCI sent by the network device comprises: Monitoring, on a second carrier, a first-format DCI sent by the network device; The second carrier is configured with a search space for sending the first format DCI. The method according to claim 3, wherein The second carrier is a secondary carrier in the cell group where the first carrier is located, and the user equipment is configured with multiple service carriers based on carrier aggregation CA. The method according to any one of claims 1 to 4, wherein: The first MO is before the working period of C-DRX; The start time when the user equipment monitors the DCI and the start time of the C-DRX working period have a first duration. The method according to claim 5, wherein The first duration is configured by the network device. The method according to any one of claims 1 to 4, wherein: The network device instructs the user equipment to monitor the DCI within the time domain interval through first information. The method according to claim 7, wherein the method further comprises: The first information sent by the network device is received, where the first information is used to indicate whether the user equipment needs to monitor the DCI within the time domain interval. The method according to claim 8, wherein the method further comprises: Not monitoring the DCI in the time domain interval; The first information indicates that the user equipment does not need to monitor the DCI in the time domain interval. A method for sending downlink control information, performed by a network device, the method comprising: In a second time period, sending a first format DCI to the user equipment; The second time period includes the first MO, or includes a time domain interval in which the first MO overlaps with the first time period; The first MO is the MO corresponding to the first format DCI configured for the user equipment, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is the non-activation period of the cell DTX configured by the network device on the first carrier. The method according to claim 10, wherein the sending of the first format DCI to the user equipment comprises: A DCI in a first format is sent to a user equipment on the first carrier, where the first carrier is a primary carrier. The method according to claim 10, wherein the sending of the first format DCI to the user equipment comprises: Sending a first format DCI to the user equipment on a second carrier; The second carrier is configured with a search space for sending the first format DCI. The method of claim 12, wherein: The second carrier is a secondary carrier in the cell group where the first carrier is located, and the user equipment is configured with multiple service carriers based on carrier aggregation CA. The method according to any one of claims 10 to 13, wherein: The first MO is before the working period of C-DRX; The start time of the user equipment monitoring the DCI and the start time of the C-DRX working period are separated by a first time duration. The method of claim 14, wherein: The first duration is configured by the network device. The method according to any one of claims 10 to 13, wherein: The network device instructs the user equipment to monitor the DCI within the time domain interval through first information. The method of claim 16, wherein the method further comprises: The first information is sent to the user equipment, where the first information is used to indicate whether the user equipment needs to monitor the DCI within the time domain interval. A communication device, comprising: A transceiver module, configured to monitor downlink control information DCI sent by a network device in a time domain interval where a first monitoring opportunity MO overlaps with a first time period; Among them, the first MO is the MO corresponding to the first format DCI configured for the user equipment, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is the non-activated time period of discontinuous transmission DTX of the cell configured by the network device on the first carrier. A communication device, comprising: A transceiver module, configured to send a first format DCI to a user equipment in a second time period; Wherein, the second time period includes the first MO, or includes a time domain interval in which the first MO overlaps with the first time period; The first MO is the MO corresponding to the first format DCI configured for the user equipment, and the user equipment is configured with discontinuous reception C-DRX on the first carrier; the first time period is the non-activation period of the cell DTX configured by the network device on the first carrier. A communication system, comprising: user equipment and network equipment; The user equipment is used to perform the method according to any one of claims 1 to 9; The network device is used to execute the method according to any one of claims 10 to 17. A communication device, comprising: one or more processors; The processor is used to call instructions to enable the communication device to execute the method according to any one of claims 1 to 9, or to execute the method according to any one of claims 10 to 17. A storage medium storing instructions. When the instruction is executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 9, or execute the method according to any one of claims 10 to 17.