A communication method, apparatus, and readable storage medium

Abstract

The present disclosure provides a communication method, device and readable storage medium. The method comprises: a network device sending a first reference signal to a user equipment in a first discontinuous transmission (DTX) period on a first carrier, the first reference signal comprising at least one of: a reference signal for radio link monitoring (RLM), a reference signal for beam failure detection (BFD), and a reference signal for beam failure recovery (BFR); wherein the first period is a period in which the network device does not send at least part of the downlink information in the DTX state. In the method of the present disclosure, in the first period in which the network device is in the DTX state, the network device can still send the first reference signal in addition to energy saving. Thus, the user equipment can perform a link detection and / or recovery process in time in the energy saving state of the network device, which is conducive to maintaining good communication conditions between the network device and the user equipment and ensuring the communication quality of the communication link.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of wireless communication, and particularly relates to a communication method, an apparatus and a readable storage medium. BACKGROUND

[0002] Network energy saving is one of the topics in the 3rd Generation Partnership Project (3GPP) Release 18 (R18). The network energy saving project aims to study techniques for reducing the energy consumption of network devices. One possible network energy saving method is the discontinuous transmission (DTX) mechanism of a cell base station. SUMMARY

[0003] The present disclosure provides a communication method, an apparatus and a readable storage medium.

[0004] In a first aspect, the present disclosure provides a communication method performed by a network device, the method comprising:

[0005] The network device is in a first time period of discontinuous transmission (DTX) on a first carrier, and transmits a first reference signal to a user equipment, the first reference signal comprising at least one of: a reference signal for radio link monitoring (RLM), a reference signal for beam failure detection (BFD), and a reference signal for beam failure recovery (BFR).

[0006] The first time period is a time period in which the network device does not transmit at least part of the downlink information in the DTX state.

[0007] In some possible implementation manners, when the first reference signal is multiple, the transmitting the first reference signal to the user equipment comprises:

[0008] Transmitting at least one of the multiple first reference signals to the user equipment.

[0009] In some possible implementation manners, the first carrier corresponds to a special cell (SPcell) or a secondary cell (Scell).

[0010] In some possible implementation manners, the method further comprises:

[0011] When a first uplink information transmitted by the user equipment on the first carrier is received at a first time, transmitting a downlink control channel (PDCCH) to the user equipment in a first time window after a first time interval (first time duration) from the first time.

[0012] Transmitting a downlink control channel (PDCCH) to the user equipment in a first time window after a first time interval (first time duration) from the first time.

[0013] The first uplink information is used to indicate that the user equipment detects radio link failure or beam failure.

[0014] In some possible implementation manners, when the first carrier corresponds to an SPcell, the sending, to the user equipment, of the PDCCH comprises:

[0015] sending, to the user equipment, the PDCCH in a first search space for link recovery on the first carrier.

[0016] In some possible implementation manners, when the first carrier corresponds to an Scell, the sending, to the user equipment, of the PDCCH comprises:

[0017] sending, to the user equipment, the PDCCH on a second carrier, wherein the second carrier corresponds to the Scell, or an SPcell, or a cell not in the first time period.

[0018] In some possible implementation manners, the first time length is defined by a protocol or configured by the network device.

[0019] In some possible implementation manners, the method further comprises:

[0020] terminating the first time period on the first carrier at a second time after a second time length from the first time, when the first uplink information sent by the user equipment on the first carrier is received at the first time.

[0021] The first uplink information is used to indicate that the user equipment detects radio link failure or beam failure.

[0022] In some possible implementation manners, the second time length is defined by a protocol or configured by the network device.

[0023] In some possible implementation manners, when the first carrier corresponds to an SPcell, the first uplink information comprises at least one of the following:

[0024] a random access channel (PRACH) for BFR;

[0025] a scheduling request (SR) for BFR.

[0026] In some possible implementation manners, when the first carrier corresponds to an Scell, the first uplink information is an SR for BFR.

[0027] In a second aspect, the present disclosure provides a communication method, executed by a user equipment, the method comprising:

[0028] The network device listens to and receives a first reference signal transmitted by the network device on the first carrier in a first period in which the network device is in DTX, the first reference signal comprising at least one of the following: a reference signal for RLM, a reference signal for BFD, and a reference signal for BFR;

[0029] The first period is a period in which the network device does not transmit at least part of downlink information when the network device is in the DTX state.

[0030] In some possible implementation manners, the first carrier corresponds to an SPcell or a Scell.

[0031] In some possible implementation manners, the method further comprises:

[0032] listening to and receiving a PDCCH transmitted by the network device in a first time window after the first uplink information is transmitted on the first carrier;

[0033] The first uplink information is used to indicate that the user equipment detects a radio link failure or a beam failure.

[0034] In some possible implementation manners, when the first carrier corresponds to an SPcell, the listening to and receiving the PDCCH transmitted by the network device comprises:

[0035] listening to and receiving the PDCCH in a first search space for link recovery on the first carrier.

[0036] In some possible implementation manners, when the first carrier corresponds to a Scell, the listening to and receiving the PDCCH transmitted by the network device comprises:

[0037] listening to and receiving the PDCCH transmitted by the network device on a second carrier, wherein the second carrier corresponds to the Scell, or an SPcell, or a cell that is not in the first period.

[0038] In some possible implementation manners, at a second time after the first uplink information is transmitted on the first carrier, the user equipment expects the first period of the first carrier to end and listens to and receives a PDCCH;

[0039] The first uplink information is used to indicate that the user equipment detects a radio link failure or a beam failure.

[0040] In some possible implementation manners, when the first carrier corresponds to an SPcell, the first uplink information comprises at least one of the following:

[0041] PRACH for BFR;

[0042] SR for BFR.

[0043] In some possible implementation, when the first carrier corresponds to a Scell, the first uplink information is SR for BFR.

[0044] In a third aspect, the present disclosure provides a communication apparatus, which can be used to execute the steps performed by the network device in the first aspect or any possible design of the first aspect. The network device can implement the functions in the above methods in the form of hardware structure, software module, or hardware structure plus software module.

[0045] When the apparatus in the third aspect is implemented by software module, the apparatus can include a transceiver module, which can be used to support the communication apparatus to communicate.

[0046] When the steps in the first aspect are executed, the transceiver module is configured to send a first reference signal to the user equipment in a first time period when the network device is in DTX on the first carrier, and the first reference signal includes at least one of the following: a reference signal for radio link monitoring (RLM), a reference signal for beam failure detection (BFD), and a reference signal for beam failure recovery (BFR).

[0047] The first time period is a time period when the network device does not send at least part of the downlink information in the DTX state.

[0048] In a fourth aspect, the present disclosure provides a communication apparatus, which can be used to execute the steps performed by the user equipment in the second aspect or any possible design of the second aspect. The user equipment can implement the functions in the above methods in the form of hardware structure, software module, or hardware structure plus software module.

[0049] When the apparatus in the fourth aspect is implemented by software module, the apparatus can include a transceiver module, which can be used to support the communication apparatus to communicate.

[0050] When the steps in the second aspect are executed, the transceiver module is configured to listen to and receive a first reference signal sent by the network device in a first time period when the network device is in DTX on the first carrier, and the first reference signal includes at least one of the following: a reference signal for RLM, a reference signal for BFD, and a reference signal for BFR.

[0051] The first time period is a time period when the network device does not send at least part of the downlink information in the DTX state.

[0052] In a fifth aspect, the present disclosure provides a network device, comprising a processor and a memory; the memory is configured to store a computer program; the processor is configured to execute the computer program to implement the first aspect or any possible design of the first aspect.

[0053] In a sixth aspect, the present disclosure provides a user equipment, comprising a processor and a memory; the memory is configured to store a computer program; the processor is configured to execute the computer program to implement the second aspect or any possible design of the second aspect.

[0054] In a seventh aspect, the present disclosure provides a computer readable storage medium, which stores instructions (or computer program, program) that, when invoked to execute on a computer, causes the computer to execute the first aspect or any possible design of the first aspect.

[0055] In an eighth aspect, the present disclosure provides a computer readable storage medium, which stores instructions (or computer program, program) that, when invoked to execute on a computer, causes the computer to execute the second aspect or any possible design of the second aspect.

[0056] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0057] The accompanying drawings illustrated herein are used to provide further understanding of the embodiments of the present disclosure, and constitute a part of the present disclosure. The schematic 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:

[0058] The drawings herein are incorporated into the description and constitute a part of the description, show embodiments consistent with the embodiments of the present disclosure, and are used together with the description to explain the principles of the embodiments of the present disclosure.

[0059] Figure 1 is a schematic diagram of a wireless communication system architecture provided by the embodiments of the present disclosure;

[0060] Figure 2 is an interaction flowchart of a communication method according to an exemplary embodiment;

[0061] Figure 3 is a schematic diagram of DTX according to an exemplary embodiment;

[0062] Figure 4 is a flowchart of a communication method according to an exemplary embodiment;

[0063] Figure 5 is a flowchart of another communication method according to an example embodiment;

[0064] Figure 6 is a flowchart of a communication method according to another example embodiment;

[0065] Figure 7 is a block diagram of a communication apparatus according to an example embodiment;

[0066] Figure 8 is a block diagram of a network device according to an example embodiment;

[0067] Figure 9 is a block diagram of a communication apparatus according to an example embodiment;

[0068] Figure 10 is a block diagram of a user equipment according to an example embodiment. DETAILED DESCRIPTION

[0069] The embodiments of the present disclosure will be further described with reference to the drawings and specific embodiments.

[0070] The example embodiments will be described in detail with reference to the accompanying drawings. The following description is with reference to the drawings, in which like numerals represent like elements, unless the context dictates otherwise. The following description of example embodiments is not representative of all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0071] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used in the present disclosure and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0072] It will be understood that, although the terms first, second, third, etc. can be used herein to describe various information, these terms are not intended to denote a temporal or chronological order. Rather, these terms are used solely to distinguish one from another only. For example, a first information can be termed a second information, and similarly, a second information can also be termed a first information, without departing from the scope of the present disclosure. Depending on the context, the word "if' and "when' as used herein can be interpreted to mean "upon" or "in response to determining."

[0073] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0074] like Figure 1 As shown, the communication method provided in this embodiment can be applied to a wireless communication system 100, which may include a network device 101 and a user equipment 102. The user equipment 102 is configured to support carrier aggregation and can be connected to multiple carrier units of the network device 101, including a primary carrier unit and one or more secondary carrier units.

[0075] It should be understood that the wireless communication system 100 described above is applicable to both low-frequency and high-frequency scenarios. Application scenarios for the wireless communication system 100 include, but are not limited to, long-term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, worldwide interoperability for microwave access (WiMAX) communication systems, cloud radio access network (CRAN) systems, future 5th-generation (5G) systems, new radio (NR) communication systems, or future evolved public land mobile network (PLMN) systems.

[0076] The user equipment 102 shown above can be a terminal, access terminal, terminal unit, terminal station, mobile station (MS), remote station, remote terminal, mobile terminal, wireless communication device, terminal agent, or terminal equipment, etc. This user equipment 102 may have wireless transceiver capabilities, enabling it to communicate (e.g., wirelessly) with one or more network devices in one or more communication systems and receive network services provided by the network devices. These network devices include, but are not limited to, the network device 101 shown in the figure.

[0077] The user equipment 102 can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device having wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved PLMN network, and the like.

[0078] The network device 101 can be an access network device (or an access network site). The access network device refers to a device having a network access function, such as a radio access network (RAN) base station, and the like. The network device 101 can specifically include a base station (BS), or include a base station and a radio resource management device for controlling the base station, and the like. The network device 101 can also include a relay station (relay device), an access point, a base station in a future 5G network, a base station in a future evolved PLMN network, or an NR base station, and the like. The network device 101 can be a wearable device or a vehicle-mounted device. The network device 101 can also be a communication chip having a communication module.

[0079] For example, the network device 101 includes, but is not limited to, a next generation base station (gnodeB, gNB) in 5G, an evolved node B (eNB) in an LTE system, a radio network controller (RNC), a node B (NB) in a WCDMA system, a radio controller under a CRAN system, a base station controller (BSC), a base transceiver station (BTS) in a GSM system or a CDMA system, a home base station (for example, a home evolved node B, or a home node B, HNB), a baseband unit (BBU), a transmitting and receiving point (TRP), a transmitting point (TP), a mobile switching center, and the like.

[0080] When the cell base station is in a DTX or DRX state, it can affect the signal transmission and reception of the user equipment 102. For example, during the cell DTX period, some signals that need to be periodically transmitted by the network device 101, such as reference signals, can no longer be transmitted, and the corresponding user equipment 102 can not receive this part of the signal.

[0081] The problem to be solved is how to perform related link detection or recovery in the scenario where the network device 101 is in a DTX state.

[0082] The embodiments of the present disclosure provide a communication method, which refers to Figure 2 , Figure 2 is an interaction flowchart of a communication method according to an exemplary embodiment, as shown in Figure 2 , the method comprises steps S201-S202, specifically:

[0083] In step S201, the network device 101 is in a first period of discontinuous transmission (DTX) on a first carrier, and transmits a first reference signal to the user equipment 102. The first reference signal includes at least one of the following: a reference signal for radio link monitoring (RLM), a reference signal for beam failure detection (BFD), and a reference signal for beam failure recovery (BFR).

[0084] The first period is a period in which the network device 101 does not transmit at least part of the downlink information in the DTX state.

[0085] In some possible implementation manners, the DTX function is configured in units of carriers, and each carrier can correspond to a cell of the network device 101.

[0086] Different carriers or cells can be configured with or without a cell DTX (cell DTX) function. For multiple carriers configured with the cell DTX function, the configuration parameters related to the cell DTX can be the same or different.

[0087] In some possible implementation manners, the first carrier can be a carrier configured with the cell DTX function.

[0088] For a carrier or cell configured with cell DTX function, the first time period can also be referred to as DTX-off duration, i.e., a time period during which the network device 101 can not transmit at least part of the downlink information. For example, during the first time period, the network device 101 can not transmit part of the reference signals or downlink scheduling information on the first carrier. The time period during which the network device 101 normally transmits the downlink information can be referred to as a second time period or DTX-on duration.

[0089] In some possible implementation manners, Figure 3 A schematic diagram of DTX is shown, for example, as shown in FIG. 2. Figure 3 As shown, the DTX-off duration and the DTX-on duration can occur periodically, e.g., the network device 101 configures a periodic cell DTX on-off mode. The periodic cell DTX on-off mode can include parameters such as a DTX time domain period, a DTX start offset, a DTX-off duration length, and a DTX-on duration length.

[0090] In some possible implementation manners, the network device 101 can configure the time-frequency resource of the first reference signal for the user equipment 102, so that the user equipment 102 monitors the first reference signal at the corresponding time-frequency location.

[0091] For example, the network device 101 configures one or more reference signals for the user equipment 102 to perform BFD on each carrier. Alternatively, the network device 101 configures one or more reference signals for the user equipment 102 to perform BFR on each carrier, and the reference signal for BFR is referred to as a candidate reference signal (candidate beam RS). Alternatively, the network device 101 configures one or more reference signals for the user equipment 102 to perform RLM on each carrier.

[0092] For another example, the network device 101 configures one or more reference signals for BFD and one or more reference signals for BFR, respectively.

[0093] For another example, the network device 101 configures one or more reference signals for RLM and one or more reference signals for BFR.

[0094] Alternatively, the network device 101 configures one or more reference signals for RLM, one or more reference signals for BFD, and one or more reference signals for BFR.

[0095] In some possible implementation manners, the network device 101 can still not transmit the downlink information other than the first reference signal during the first time period.

[0096] Step S202, in the first time period, the user equipment 102 listens and receives the first reference signal sent by the network device 101.

[0097] In some possible implementation manners, the network device 101 continues to send the first reference signal when the network device 101 is in the first time period of DTX. Therefore, the user equipment 102 still needs to listen and receive the first reference signal in the first time period, so as to timely perform RLM and BFR, or perform BFD and BFR.

[0098] In some possible implementation manners, the user equipment 102 can not listen to downlink information other than the first reference signal in the first time period.

[0099] In some possible implementation manners, the user equipment 102 performs RLM according to the reference signal configured by the network device 101 for BFR.

[0100] For example, the user equipment 102 performs Layer 1 (physical layer) measurement on reference signal receiving power (RSRP) of the reference signal configured by the network device 101, evaluates wireless link quality according to a synchronization threshold or an out-of-sync threshold, such as whether wireless link failure occurs, and reports the wireless link quality.

[0101] In some possible implementation manners, the user equipment 102 performs BFD according to the reference signal configured by the network device 101 for BFD.

[0102] For example, the user equipment 102 performs Layer 1 measurement on RSRP of the reference signal, and when the RSRP is lower than a set threshold, triggers a beam failure instance indication, and the Layer 1 reports the beam failure instance indication to a Layer 2 (Media Access Control (MAC)). When the number of times of receiving the beam failure instance indication by the MAC layer reaches a corresponding threshold, the MAC layer triggers a BFR process.

[0103] In some possible implementation manners, the user equipment 102 performs BFR according to the reference signal configured by the network device 101 for BFR.

[0104] For example, the user equipment 102 measures the RSRP of the candidate reference signal at layer one, and when the RSRP meets a condition such as being greater than a set threshold, the user equipment 102 reports the reference signal index (RS index) corresponding to the RSRP to a higher layer, which can be used to correspond to or determine a new beam. The user equipment 102 can report the result (such as the RS index) of the BFR to the network device 101, and perform random access on the best candidate beam according to the resource configured by the network device 101 to complete beam recovery.

[0105] In the embodiments of the present disclosure, when the network device 101 is in the first period of DTX, the network device 101 can still transmit the first reference signal in addition to achieving energy saving, so that the user equipment 102 can monitor the first reference signal, so that the link detection or recovery process can be performed in time even in the energy saving state of the network device 101, which is beneficial to maintaining good communication conditions between the network device 101 and the user equipment 102 and ensuring the communication quality of the communication link.

[0106] The embodiments of the present disclosure provide a communication method, which is performed by the network device 101. Referring to Figure 4 , Figure 4 is a flowchart of a communication method according to an exemplary embodiment, as shown in Figure 4 , the method comprises the following step S401, specifically:

[0107] In step S401, the network device 101 transmits a first reference signal to the user equipment 102 in a first period of discontinuous transmission (DTX) on a first carrier, and the first reference signal comprises at least one of the following: a reference signal for radio link monitoring (RLM), a reference signal for beam failure detection (BFD), and a reference signal for beam failure recovery (BFR).

[0108] The first period is a period in which the network device 101 does not transmit at least part of the downlink information in the DTX state.

[0109] In some possible implementation manners, the DTX function is configured in units of carriers, and the first carrier can refer to a carrier on which the cell DTX function is configured.

[0110] In some possible implementation manners, the first period is a DTX-off period (off duration), and referring to Figure 3 , the time domain period of DTX can also include a second period, i.e., a DTX-on period (on duration).

[0111] In some possible implementation manners, the network device 101 can configure the time-frequency resource of the first reference signal for the user equipment 102, so that the user equipment 102 can monitor the first reference signal at the corresponding time-frequency location.

[0112] For example, the network device 101 configures one or more reference signals for BFD on each carrier. Alternatively, the network device 101 configures one or more reference signals for BFR on each carrier. Alternatively, the network device 101 configures one or more reference signals for RLM on each carrier.

[0113] In some possible implementation, when there are multiple first reference signals, the step S401 can include a step S401', specifically:

[0114] The step S401' includes that the network device 101 sends at least one first reference signal in the multiple first reference signals to the user equipment 102.

[0115] In an example, the network device 101 can only send part of the first reference signals in all the first reference signals configured by the network device 101, to ensure the energy saving of the network device 101.

[0116] For example, the network device 101 configures multiple reference signals for BFD, and the network device 101 can only send one or part of the reference signals to the user equipment 102 in the first time period, without sending all the reference signals for BFD, which is beneficial to the energy saving of the network device 101.

[0117] In some possible implementation, the first carrier corresponds to a special cell (SPcell) or a secondary cell (Scell).

[0118] In some possible implementation, the primary cell (PCell) in the master cell group (MCG) and the primary secondary cell (PScell) in the secondary cell group (SCG) are collectively referred to as the SPcell.

[0119] In some possible implementation, the user equipment 102 can perform link detection or recovery according to the first reference signal, such as performing BFD and / or BFR, or performing RLM and BFR, or performing RLM, BFD and BFR.

[0120] In some possible implementation, the network device 101 can still not send the downlink information other than the first reference signal in the first time period.

[0121] In the embodiments of the present disclosure, when the network device 101 is in the first time period of DTX, the network device 101 can still send the first reference signal in addition to energy saving. Thus, the user equipment 102 can also perform link detection and / or recovery process in time in the energy saving state of the network device 101, which is beneficial to keep good communication condition between the network device 101 and the user equipment 102 and ensure the communication quality of the communication link.

[0122] The embodiments of the present disclosure provide a communication method, which is performed by the network device 101. Referring to Figure 5 , Figure 5 is a flowchart of a communication method according to an exemplary embodiment, as shown in Figure 5 , the method comprises steps S501-S502, specifically:

[0123] In step S501, the network device 101 sends a first reference signal to the user equipment 102 in a first time period of discontinuous transmission (DTX) on a first carrier, and the first reference signal comprises at least one of the following: a reference signal for radio link monitoring (RLM), a reference signal for beam failure detection (BFD), and a reference signal for beam failure recovery (BFR).

[0124] In the embodiments of the present disclosure, the first time period is a time period in which the network device 101 does not send at least part of the downlink information in the DTX state.

[0125] In the embodiments of the present disclosure, the first time period is a time period in which the network device 101 does not send at least part of the downlink information in the DTX state.

[0126] In step S502, the network device 101 sends a physical downlink control channel (PDCCH) to the user equipment 102 within a first time window after a first time interval of a first time length, when the network device 101 receives first uplink information sent by the user equipment 102 on the first carrier at a first time.

[0127] In the embodiments of the present disclosure, the first uplink information is used to indicate that the user equipment 102 detects radio link failure (RLF) or beam failure.

[0128] In some possible embodiments, the first carrier corresponds to an SPcell or a secondary cell (Scell).

[0129] In an example, the first time length T11 when the first carrier corresponds to the SPcell is different from or different from the first time length T12 when the first carrier corresponds to the Scell.

[0130] In some possible implementation, the first time duration is defined in a protocol or configured by the network device 101. For example, the protocol can define a calculation method of the first time duration. Alternatively, the network device 101 configures the first time duration for the user equipment 102.

[0131] In some possible implementation, the network device 101 indicates that the user equipment 102 detects the beam failure when receiving the first uplink information sent by the user equipment 102. The first uplink information can be used to request a BFR related random access or uplink scheduling.

[0132] It can be understood that if the user equipment 102 does not detect the radio link failure or the beam failure, the first uplink information can not be sent, and the network device 101 can not perform step S502.

[0133] In the case that the first carrier corresponds to the SPcell or the Scell, the first uplink information is different.

[0134] In some possible implementation, in the case that the first carrier corresponds to the SPcell, the first uplink information includes at least one of the following:

[0135] a random access channel (PRACH) for BFR;

[0136] a scheduling request (SR) for BFR.

[0137] In an example, the network device 101 can configure PRACH resources and / or SR resources for BFR on the SPcell.

[0138] In this example, if the beam failure occurs on the SPcell, the user equipment 102 can send a PRACH according to the PRACH resources configured by the network device 101 on the SPcell, and listen to the PDCCH carrying the downlink control information (DCI) in the first search space in the first time window. Alternatively, the user equipment 102 sends an SR according to the SR resources configured by the network device 101 on the SPcell. Alternatively, the user equipment 102 sends the PRACH and the SR.

[0139] In some possible implementation, in the case that the first carrier corresponds to the SPcell, step S502 can include the following step S502-10, specifically:

[0140] At step S502-10, the network device 101 sends, to the user equipment 102, a PDCCH in a first search space for link recovery on the first carrier within a first time window after a first time interval of a first time length T11 when the network device 101 receives the first uplink information sent by the user equipment 102 on the first carrier at the first time.

[0141] For example, the first search space is recoverySearchSpace.

[0142] For example, the first time window corresponds to beamFailureRecoveryTimer.

[0143] In an example, when the network device 101 receives the first uplink information on the SPcell, such as receiving a PRACH and / or SR for BFR, the network device 101 can only resume the PDCCH transmission in the first search space, such as resuming the BFR related scheduling information in the first search space on the first carrier.

[0144] In this example, the user equipment 102 needs to monitor the PDCCH in the first search space within the first time window.

[0145] In some possible implementation, when the first carrier corresponds to a Scell, the first uplink information is an SR for BFR.

[0146] In an example, the network device 101 can configure an SR resource for BFR on one Scell in the MCG or the SCG.

[0147] In this example, if a beam failure occurs on the Scell, the user equipment 102 can send an SR according to the SR resource configured by the network device 101 on the Scell. After the user equipment 102 obtains an uplink scheduling, the user equipment 102 can send a reference signal index corresponding to a new beam in a physical uplink shared channel (PUSCH).

[0148] In some possible implementation, when the first carrier corresponds to a Scell, step S502 can include the following step S502-20, in particular:

[0149] At step S502-10, the network device 101 sends, to the user equipment 102, a PDCCH in a first search space for link recovery on the first carrier within a first time window after a first time interval of a first time length T11 when the network device 101 receives the first uplink information sent by the user equipment 102 on the first carrier at the first time.

[0150] The second carrier corresponds to a Scell, or an SPcell, or a cell not in the first time period.

[0151] In an example, when the network device 101 receives the first uplink information on the Scell, such as receiving the SR for the BFR, the network device 101 can send the BFR-related PDCCH scheduling information on the Scell, or send the BFR-related scheduling information on the SPcell, or send the BFR-related scheduling information on other Scells not in the DTX-off time period.

[0152] In this example, the user equipment 102 needs to listen to the PDCCH in the first time window, and on the Scell, the SPcell, or other Scells not in the DTX-off time period.

[0153] In the embodiment of the present disclosure, when the network device 101 receives the first uplink information, it can know that the beam failure occurs, and thus can send the PDCCH in a timely manner at a suitable time domain position, so that the user equipment 102 can adjust the beam in a timely manner according to the scheduling of the network device 101, thereby ensuring the communication quality between the two.

[0154] The embodiment of the present disclosure provides a communication method, which is executed by the network device 101. The method comprises steps S501-S502', specifically:

[0155] Step S501, the network device 101 is in a first time period of discontinuous transmission (DTX) on a first carrier, and sends a first reference signal to the user equipment 102. The first reference signal comprises at least one of the following: a reference signal for RLM, a reference signal for BFD, and a reference signal for BFR.

[0156] The first time period is a time period in which the network device 101 does not send at least part of the downlink information in the DTX state.

[0157] The implementation of step S501 can refer to the description of the foregoing embodiments, which will not be repeated here.

[0158] Step S502', when the network device 101 receives the first uplink information sent by the user equipment 102 on the first carrier at a first time, the network device 101 terminates the first time period on the first carrier at a second time after a second time interval from the first time.

[0159] The first uplink information is used to indicate that the user equipment 102 detects a radio link failure or a beam failure.

[0160] In some possible implementation, according to the time domain period configuration of the DTX, the network device 101 can terminate the first period in advance if the second time is located in the first period.

[0161] In some possible implementation, the first carrier corresponds to an SPcell or a Scell.

[0162] In an example, the second time duration T21 when the first carrier corresponds to an SPcell is different from or the same as the second time duration T22 when the first carrier corresponds to a Scell.

[0163] In some implementation, the second time duration can be the same as or different from the aforementioned first time duration.

[0164] In some possible implementation, the second time duration is defined by a protocol or configured by the network device 101. For example, the protocol can define the calculation method of the second time duration. Alternatively, the network device 101 configures the first time duration for the user equipment 102.

[0165] In some possible implementation, the first uplink information can be used to request a BFR-related random access or uplink scheduling.

[0166] In an example, when the first carrier corresponds to an SPcell, the first uplink information includes at least one of the following: a PRACH for BFR, and an SR for BFR.

[0167] In this example, the network device 101 terminates the first period at the second time and resumes sending the BFR-related PDCCH when receiving the PRACH and / or SR for BFR on the SPcell.

[0168] In another example, when the first carrier corresponds to a Scell, the first uplink information is an SR for BFR.

[0169] In this example, the network device 101 terminates the first period at the second time and resumes sending the BFR-related PDCCH when receiving the SR for BFR on the Scell.

[0170] In some possible implementation, the user equipment 102 needs to monitor the PDCCH on the first carrier, such as the BFR-related PDCCH, starting from the second time.

[0171] In the embodiments of the present disclosure, when the network device 101 receives the first uplink information, it can be known that a beam failure occurs, so the first period can be ended in advance, and the sending of the BFR-related PDCCH can be resumed in time, so as to ensure the communication quality between the network device 101 and the user equipment 102.

[0172] The embodiment of the disclosure provides a communication method, which is executed by a user equipment 102. Referring to Figure 6 , Figure 6 is a flowchart of a communication method according to an exemplary embodiment, as shown in Figure 6 , the method comprises the following steps S601, specifically:

[0173] In step S601, the network device 101 is in a first time period of DTX on a first carrier, and the user equipment 102 listens and receives a first reference signal sent by the network device 101, and the first reference signal comprises a reference signal for BFD and / or BFR.

[0174] Wherein, the first time period is a time period in which the network device 101 does not send at least part of the downlink information in the DTX state.

[0175] In some possible implementation manners, the first time period is a DTX-off time period, and the reference Figure 3 , the time domain period of DTX can also include a second time period, i.e. a DTX-on time period.

[0176] In some possible implementation manners, the first carrier can be a carrier configured with a cell DTX function.

[0177] In some possible implementation manners, the first carrier corresponds to an SPcell or a Scell.

[0178] In some possible implementation manners, the first reference signal can be configured in multiple. For example, the network device 101 configures one or more reference signals on each carrier for BFD. Or, one or more reference signals on each carrier for BFR are configured.

[0179] When the network device 101 sends the first reference signal, the network device 101 can only send part of the reference signal for BFD, or part of the reference signal for BFR.

[0180] In some possible implementation manners, the user equipment 102 can perform BFD and / or BFR according to the first reference signal.

[0181] It can be understood that the process of BFD or BFR performed by the user equipment 102 can refer to the description of the foregoing embodiments, and will not be described here.

[0182] In the embodiments of the present disclosure, when the network device 101 is in the first time period of DTX, the user equipment 102 also needs to monitor the first reference signal in the power saving state of the network device 101, so that the BFD and / or BFR process can be performed in time, which is beneficial to maintaining good communication conditions between the network device 101 and the user equipment 102 and ensuring the communication quality of the communication link.

[0183] The embodiments of the present disclosure provide a communication method, which is performed by the user equipment 102. The method includes steps S601-S602, in particular:

[0184] In step S601, the network device 101 is in the first time period of DTX on the first carrier, and the user equipment 102 monitors and receives the first reference signal sent by the network device 101. The first reference signal includes at least one of the following: a reference signal for RLM, a reference signal for BFD, and a reference signal for BFR.

[0185] In the embodiments of the present disclosure, the first time period is a time period in which the network device 101 does not send at least part of the downlink information in the DTX state.

[0186] The implementation of step S601 can refer to the description of the foregoing embodiments, which will not be described here.

[0187] In step S602, the user equipment 102 monitors and receives the PDCCH sent by the network device 101 within the first time window after sending the first uplink information on the first carrier.

[0188] The first uplink information is used to indicate that the user equipment 102 detects a radio link failure or a beam failure.

[0189] In some possible implementation manners, the first time window can be a time domain position that is separated from the first time when the network device 101 receives the first uplink information by a first time length.

[0190] In some possible implementation manners, the first carrier corresponds to the SPcell or the Scell.

[0191] In an example, the first time length T11 when the first carrier corresponds to the SPcell is different from or different from the first time length T12 when the first carrier corresponds to the Scell.

[0192] In some possible implementation manners, the first time length is defined by a protocol or configured by the network device 101. For example, the protocol can define the calculation method of the first time length. Alternatively, the network device 101 configures the first time length for the user equipment 102.

[0193] In some possible implementation, upon occurrence of the beam failure, the user equipment 102 can send the first uplink information to request scheduling of the network device 101 or initiate random access.

[0194] It can be understood that if the user equipment 102 does not detect the radio link failure or the beam failure, the step S602 can not be performed.

[0195] In some possible implementation, when the first carrier corresponds to the SPcell, the step S602 can include the following step S602-10, in particular:

[0196] The step S602-10, after sending the first uplink information on the first carrier, the user equipment 102 monitors and receives PDCCH in a first search space for link recovery on the first carrier within a first time window.

[0197] In an example, the first search space is, for example, recoverySearchSpace.

[0198] The first time window corresponds to, for example, beamFailureRecoveryTimer.

[0199] In an example, when the first carrier corresponds to the SPcell, the first uplink information includes at least one of the following:

[0200] PRACH for BFR;

[0201] SR for BFR.

[0202] In an example, if the beam failure occurs on the SPcell, the user equipment 102 can send PRACH and / or SR for BFR according to PRACH resource and / or SR resource for BFR configured by the network device 101 on the SPcell.

[0203] In some possible implementation, when the first carrier corresponds to the Scell, the step S602 can include the following step S602-20, in particular:

[0204] The step S602-20, after sending the first uplink information on the first carrier, the user equipment 102 monitors and receives PDCCH sent by the network device on the second carrier within a first time window.

[0205] The first uplink information is used to indicate that the user equipment 102 detects the radio link failure or the beam failure.

[0206] The second carrier corresponds to the Scell, or the SPcell, or a cell not in the first time period.

[0207] In an example, the first uplink information is a SR for BFR when the first carrier corresponds to a Scell.

[0208] In an example, the network device 101 can configure a SR resource for BFR on one Scell in the MCG or the SCG.

[0209] In an example, if a beam failure occurs on the Scell, the user equipment 102 can send a SR according to the SR resource configured by the network device 101 on the Scell.

[0210] In an example, the network device 101 can send BFR related PDCCH scheduling information on the Scell, or send BFR related scheduling information on the SPcell, or send BFR related scheduling information on other Scell not in the DTX-off period. In this example, the user equipment 102 needs to listen to the PDCCH within the first time window on the Scell, the SPcell or other Scell not in the DTX-off period.

[0211] In the embodiment of the present disclosure, when the network device 101 is in the first period, the user equipment 102 listens to the first reference signal and the PDCCH at a suitable time domain position, so that the user equipment 102 can adjust according to the scheduling of the network device 101 to ensure the communication quality between them.

[0212] The embodiment of the present disclosure provides a communication method, which is executed by the user equipment 102. The method comprises steps S601-S602', specifically:

[0213] Step S601, the network device 101 is in a first period of DTX on a first carrier, and the user equipment 102 listens to and receives a first reference signal sent by the network device 101, the first reference signal comprising at least one of: a reference signal for RLM, a reference signal for BFD, and a reference signal for BFR.

[0214] The first period is a period in which the network device 101 does not send at least part of the downlink information in the DTX state.

[0215] The implementation of step S601 can refer to the description of the foregoing embodiments, which will not be described here.

[0216] Step S602', at a second time after sending the first uplink information on the first carrier, the user equipment 102 expects the first period of the first carrier to end and listens to and receives a PDCCH.

[0217] In some possible implementation, the second time can be determined according to a first time at which the network device 101 receives the first uplink information, for example, the second time is a time after the first time by a second time interval.

[0218] In some possible implementation, the first carrier corresponds to an SPcell or a secondary cell (Scell).

[0219] In an example, the second time interval T21 when the first carrier corresponds to an SPcell is different from the second time interval T22 when the first carrier corresponds to an Scell.

[0220] In some possible implementation, the second time interval is defined by a protocol or configured by the network device 101. For example, the protocol can define a calculation manner of the second time interval. Alternatively, the network device 101 configures the first time interval for the user equipment 102.

[0221] In some possible implementation, if the second time is within the first time period, the user equipment 102 expects the network device 101 to end the first time period early. The user equipment 102 starts to monitor the PDCCH on the first carrier from the second time, for example, monitors the BFR related PDCCH.

[0222] It can be understood that the related implementation of the embodiment of the disclosure can also refer to the description of step S502', which is not described in detail here.

[0223] In the embodiment of the disclosure, at the second time of sending the first uplink information, the user equipment 102 expects that the network device 101 can end the first time period early, and the monitoring of the BFR related PDCCH will be resumed, so that the scheduling of the network device 101 can be received in time, and the communication quality between the user equipment 102 and the network device 101 is ensured.

[0224] Based on the same idea as the above method embodiment, the embodiment of the disclosure also provides a communication device, which can have the function of the network device 101 in the above method embodiment, and can be used to execute the steps executed by the network device 101 provided by the above method embodiment. The function can be realized by hardware, or by software or hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0225] In a possible implementation, the apparatus 700 as shown in Figure 7 may serve as the network device 101 involved in the above method embodiment, and execute the steps executed by the network device 101 in the above method embodiment. As shown in Figure 7As shown, the apparatus 700 can include a transceiver module 701, where the transceiver module 701 can be configured to support the communication apparatus to communicate, and the transceiver module 701 can have a wireless communication function, for example, can support the communication apparatus to communicate with other communication apparatuses through a wireless air interface.

[0226] In the execution of the steps implemented by the network device 101, the transceiver module 701 is configured to, in a first discontinuous transmission (DTX) period on a first carrier, transmit a first reference signal to a user equipment, the first reference signal comprising at least one of: a reference signal for radio link monitoring (RLM), a reference signal for beam failure detection (BFD), and a reference signal for beam failure recovery (BFR).

[0227] The first period is a period in which the network device does not transmit at least part of the downlink information in the DTX state.

[0228] When the communication apparatus is the network device 101, the structure of the communication apparatus can also be as shown in Figure 8 The structure of the communication apparatus is illustrated by taking a base station as an example. As shown in Figure 8 The apparatus 800 includes a memory 801, a processor 802, a transceiver component 803, and a power supply component 806. The memory 801 is coupled to the processor 802 and can be used to store programs and data necessary for the communication apparatus 800 to implement various functions. The processor 802 is configured to support the communication apparatus 800 to perform the corresponding functions in the above method, which can be realized by calling the programs stored in the memory 801. The transceiver component 803 can be a wireless transceiver and can be used to support the communication apparatus 800 to receive and / or transmit signaling and / or data through a wireless air interface. The transceiver component 803 can also be referred to as a transceiver unit or a communication unit. The transceiver component 803 can include a radio frequency component 804 and one or more antennas 805, where the radio frequency component 804 can be a remote radio unit (RRU) and can be used for radio frequency signal transmission and conversion between radio frequency signals and baseband signals. The one or more antennas 805 can be used to radiate and receive radio frequency signals.

[0229] When the communication apparatus 800 needs to transmit data, the processor 802 can perform baseband processing on the data to be transmitted, and then output the baseband signal to the radio frequency unit. The radio frequency unit performs radio frequency processing on the baseband signal and transmits the radio frequency signal in the form of electromagnetic waves through the antenna. When data is transmitted to the communication apparatus 800, the radio frequency unit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 802. The processor 802 converts the baseband signal into data and processes the data.

[0230] Based on the same idea as the above method embodiments, the embodiments of the present disclosure further provide a communication device, which can have the functions of the user equipment 102 in the above method embodiments and can be used to perform the steps performed by the user equipment 102 in the above method embodiments. The functions can be implemented by hardware, or by software or hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0231] In a possible implementation, the apparatus 900 can be used as the user equipment 102 involved in the above method embodiments and perform the steps performed by the user equipment 102 in the above method embodiments. As shown in Figure 9 , the apparatus 900 can include a transceiver module 901, where the transceiver module 901 can be used to support the communication device to communicate. Figure 9

[0232] In performing the steps performed by the user equipment 102, the transceiver module 901 is configured to, when the network equipment is in a first period of DTX on a first carrier, listen to and receive a first reference signal sent by the network equipment, the first reference signal including at least one of the following: a reference signal for RLM, a reference signal for BFD, and a reference signal for BFR.

[0233] Wherein the first period is a period in which the network equipment does not send at least part of the downlink information in the DTX state.

[0234] When the apparatus is the user equipment 102, its structure can also be as shown in Figure 10 . The apparatus 1000 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0235] Referring to Figure 10 , the apparatus 1000 can include one or more of the following components: a processing component 1002, a memory 1004, a power supply component 1006, a multimedia component 1008, an audio component 1100, an input / output (I / O) interface 1012, a sensor component 1014, and a communication component 1016.

[0236] ​The processing component 1002 generally controls the overall operations of the device 1000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1002 can include one or more processors 1020 to execute instructions and to complete all or part of steps of the methods described above. In addition, the processing component 1002 can include one or more modules to facilitate interaction between the processing component 1002 and other components. For example, the processing component 1002 can include a multimedia module to facilitate the interaction between the multimedia component 1008 and the processing component 1002.

[0237] The memory 1004 is configured to store various types of data to support operations of the device 1000. Examples of these data include instructions for any application or methods operating on the device 1000, contact data, phonebook data, messages, pictures, videos, and so on. The memory 1004 can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0238] The power supply component 1006 supplies electrical power for various components of the device 1000. The power supply component 1006 can include a power supply management system, one or more power supplies, and other components associated with generating, managing, and distributing electrical power for the device 1000.

[0239] The multimedia component 1008 includes a screen providing an output interface between the device 1000 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touch, swiping, and gestures on the touch panel. The touch sensors can not only sense a boundary of a touch or swiping action, but also detect duration and pressure related to the touch or swiping action. In some embodiments, the multimedia component 1008 includes a front camera and / or a rear camera. The front and / or rear camera can receive external multimedia data when the device 1000 is in an operation mode, such as a shooting mode or a video mode. Each of the front and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0240] The audio component 1100 is configured to output and / or input audio signals. For example, the audio component 1100 includes a microphone (MIC) that is configured to receive an external audio signal when the device 1000 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 1004 or transmitted via the communication component 1016. In some embodiments, the audio component 1100 also includes a speaker for outputting audio signals.

[0241] The I / O interface 1012 provides an interface between the processing component 1002 and peripheral interface modules, which can include a keypad, a click wheel, buttons, and so on. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0242] The sensor component 1014 includes one or more sensors for providing status assessments for various aspects of the device 1000. For example, the sensor component 1014 can detect an open / closed position of the device 1000, relative positioning of components, such as a display and a keypad of the device 1000, a change of position of the device 1000 or a component of the device 1000, presence or absence of user contact with the device 1000, an orientation or acceleration / deceleration / g-force and a temperature change of the device 1000. The sensor component 1014 can include a proximity sensor configured to detect presence of an object in proximity to the device 1000 without any physical touch. The sensor component 1014 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 1014 can also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0243] The communication component 1016 is configured to facilitate wired or wireless communication between the device 1000 and another device. The device 1000 can access a wireless network based on a corresponding communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an example embodiment, the communication component 1016 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an example embodiment, the communication component 1016 also includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technology.

[0244] In exemplary embodiments, the apparatus 1000 can be implemented using one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic devices, to perform the above methods.

[0245] In exemplary embodiments, a non-transitory computer readable storage medium including instructions, such as the memory 1004 including instructions, is also provided, which can be executed by the processor 1020 of the apparatus 1000 to complete the above methods. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc.

[0246] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure following, in general, the principles of the present disclosure and including such features to the present disclosure as come within the true spirit and scope of the present disclosure. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the present disclosure is indicated by the following claims.

[0247] It should be understood that the present embodiments are not limited to the precise structures as set forth above and in the accompanying drawings and that various modifications and changes can be made without departing from the scope thereof. The scope of the present embodiments should only be limited by the appended claims.

[0248] Industrial applicability

[0249] In the method of the present disclosure, when the network device is in the first period of DTX, the network device can still send the first reference signal in addition to saving energy. Thus, the user equipment can perform link detection and / or recovery process in time when the network device is in the energy saving state, which is beneficial to maintaining good communication conditions between the network device and the user equipment and ensuring the communication quality of the communication link.

Claims

1. A communication method, performed by a network device, the method comprising: sending, by the network device, a first reference signal to a user equipment (UE) on a first carrier in a first discontinuous transmission (DTX) period, the first reference signal comprising at least one of: a reference signal for radio link monitoring (RLM), a reference signal for beam failure detection (BFD), and a reference signal for beam failure recovery (BFR) ; wherein the first period is a period in which the network device does not transmit at least part of downlink information in a DTX state; and terminating, by the network device, the first period on the first carrier at a second time after a second time interval from a first time at which the network device receives a first uplink information transmitted by the UE on the first carrier; wherein the first uplink information is used to indicate that the UE detects a radio link failure or a beam failure.

2. The method of claim 1, wherein, when the first reference signal is a plurality of reference signals, the sending the first reference signal to the UE comprises: sending, by the network device, at least one of the plurality of first reference signals to the UE.

3. The method of claim 1, wherein, the first carrier corresponds to a special cell (SPcell) or a secondary cell (Scell).

4. The method of claim 1 or 2, wherein, The method further comprises: sending, by the network device, a physical downlink control channel (PDCCH) to the UE within a first time window after a first time interval from the first time at which the network device receives the first uplink information transmitted by the UE on the first carrier; wherein the first uplink information is used to indicate that the UE detects a radio link failure or a beam failure.

5. The method of claim 4, wherein, when the first carrier corresponds to the SPcell, the sending the PDCCH to the UE comprises: sending, by the network device, the PDCCH to the UE in a first search space for link recovery on the first carrier.

6. The method of claim 4, wherein, when the first carrier corresponds to the Scell, the sending the PDCCH to the UE comprises: sending, by the network device, the PDCCH to the UE on a second carrier, wherein the second carrier corresponds to the Scell, or the SPcell, or a cell not in the first period.

7. The method of claim 4, wherein, the first time interval is defined by a protocol or configured by the network device.

8. The method of claim 1, wherein, the second time interval is defined by a protocol or configured by the network device.

9. The method of any one of claims 1, 4, 5, 7, 8, wherein, when the first carrier corresponds to the SPcell, the first uplink information comprises at least one of: a PRACH for BFR; a scheduling request (SR) for BFR.

10. The method of any one of claims 1, 4, 6, 7, 8, wherein, when the first carrier corresponds to the Scell, the first uplink information is a SR for BFR. 11.A communication method, performed by a user equipment (UE), the method comprising: listening to and receiving, by the UE, a first reference signal transmitted by a network device on a first carrier in a first discontinuous transmission (DTX) period, the first reference signal comprising at least one of: a reference signal for radio link monitoring (RLM), a reference signal for beam failure detection (BFD), and a reference signal for beam failure recovery (BFR) ; wherein the first period is a period in which the network device does not transmit at least part of downlink information in a DTX state; and terminating, by the network device, the first period on the first carrier at a second time after a second time interval from a first time at which the network device receives a first uplink information transmitted by the UE on the first carrier; wherein the first uplink information is used to indicate that the UE detects a radio link failure or a beam failure. after a second time when the user equipment sends first uplink information on the first carrier, the user equipment expects the first time period of the first carrier to end, and listens to and receives a PDCCH; wherein the first uplink information is used to indicate that the user equipment detects a radio link failure or a beam failure.

12. The communication method of claim 11, wherein, The first carrier corresponds to an SPcell or a Scell.

13. The method of claim 11, wherein, The method further comprises: listening to and receiving a PDCCH sent by the network equipment within a first time window after the user equipment sends first uplink information on the first carrier; wherein the first uplink information is used to indicate that the user equipment detects a radio link failure or a beam failure.

14. The method of claim 13, wherein, When the first carrier corresponds to an SPcell, the listening to and receiving the PDCCH sent by the network equipment comprises: listening to and receiving the PDCCH in a first search space for link recovery on the first carrier.

15. The method of claim 13, wherein, When the first carrier corresponds to a Scell, the listening to and receiving the PDCCH sent by the network equipment comprises: listening to and receiving the PDCCH sent by the network equipment on a second carrier, wherein the second carrier corresponds to the Scell, or an SPcell, or a cell not in the first time period.

16. The method of any one of claims 11, 13, 14, wherein, When the first carrier corresponds to an SPcell, the first uplink information comprises at least one of: a PRACH for BFR; an SR for BFR.

17. The method of any one of claims 11, 13, 14, wherein, When the first carrier corresponds to a Scell, the first uplink information is an SR for BFR. 18.A communication apparatus configured to a network equipment, comprising: a transceiver configured to send a first reference signal to a user equipment on a first carrier in a first time period of discontinuous transmission (DTX), wherein the first reference signal comprises at least one of a reference signal for radio link monitoring (RLM), a reference signal for beam failure detection (BFD), and a reference signal for beam failure recovery (BFR) ; wherein the first time period is a time period in which the network equipment does not send at least part of downlink information in a DTX state; a processing module configured to, when the user equipment sends first uplink information on the first carrier at a first time, terminate the first time period on the first carrier at a second time after a second time interval from the first time; wherein the first uplink information is used to indicate that the user equipment detects a radio link failure or a beam failure. 19.A communication apparatus configured to a user equipment, comprising: a transceiver configured to, when a network equipment is in a first time period of DTX on a first carrier, listen to and receive a first reference signal sent by the network equipment, wherein the first reference signal comprises at least one of a reference signal for RLM, a reference signal for BFD, and a reference signal for BFR; wherein the first time period is a time period in which the network equipment does not send at least part of downlink information in a DTX state; The processing module is configured to, at a second time after sending the first uplink information on the first carrier, expect that the first time period of the first carrier ends, and listen to and receive a PDCCH. The first uplink information is used to indicate that the user equipment detects a radio link failure or a beam failure. 20.A network device, comprising a processor and a memory, wherein, The memory is configured to store a computer program; The processor is configured to execute the computer program to implement the method in any one of claims 1-10. 21.A user equipment, comprising a processor and a memory, wherein, The memory is configured to store a computer program; The processor is configured to execute the computer program to implement the method in any one of claims 11-17. 22.A computer readable storage medium, having stored therein instructions, which when executed on a computer, cause the computer to perform the method in any one of claims 1-10. 23.A computer readable storage medium, having stored therein instructions, which when executed on a computer, cause the computer to perform the method in any one of claims 11-17.

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