A method, apparatus, device and readable storage medium for transmitting a downlink channel

Abstract

The present disclosure provides a method, device and equipment for transmitting downlink channel, and a readable storage medium, which are applied to the technical field of wireless communication. The method comprises the following steps: receiving indication information sent by a network device, wherein the indication information is used for indicating that a reference signal is closed and a closing period corresponding to the reference signal; in response to the closing period comprising a first period, the first period being all or part of a second period, and the second period being a period in which the network device transmits a downlink channel, determining whether to receive the downlink channel in the first period.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to a method, apparatus, device, and readable storage medium for transmitting downlink channels. Background Technology

[0002] In the development of wireless communication technology, how to reduce the energy consumption of base stations has become a hot research topic.

[0003] One way to reduce base station power consumption is to dynamically switch spatial elements, such as certain antenna elements, ports, transceiver chains, beams, panels, and reference signals (RS). However, dynamically switching spatial elements can cause changes in the actual transmitted beams or pilots, such as some beams being turned off or some pilots being turned off.

[0004] If network devices dynamically switch beams on and off, the beam that transmits downlink channels may be turned off, affecting downlink transmission. Summary of the Invention

[0005] This disclosure provides a method, apparatus, device, and readable storage medium for transmitting downlink channels.

[0006] Firstly, a method for receiving a downlink channel is provided, performed by a user equipment, including:

[0007] Receive indication information sent by a network device, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal;

[0008] In response to the shutdown period including a first period, the first period being all or part of a second period, the second period being the period during which the network device transmits downlink channels, it is determined whether to receive the downlink channel within the first period.

[0009] In some possible implementations, determining whether the downlink channel is received during the first time period includes:

[0010] In response to the downlink channel being a Physical Downlink Control Channel (PDCCH), and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, it is determined that the PDCCH will not be received during the first time period.

[0011] In some possible implementations, determining whether the downlink channel is received during the first time period includes:

[0012] In response to the downlink channel being a semi-statically configured Physical Downlink Shared Channel (SPS PDSCH), and the reference signal being configured as QCL type D in the TCI state of the SPS PDSCH, it is determined that the SPS PDSCH will not be received during the first time period.

[0013] In some possible implementations, determining whether the downlink channel is received during the first time period includes:

[0014] In response to the downlink channel being PDCCH, it is determined that the downlink channel will be received during the first time period;

[0015] Alternatively, in response to the downlink channel being SPS PDSCH, it is determined that the downlink channel will be received during the first time period.

[0016] In some possible implementations, determining whether the downlink channel is received during the first time period includes:

[0017] In response to the downlink channel being either PDCCH or SPS PDSCH, and the reference signal being configured with QCL type D in the TCI state of the downlink channel, it is determined that the PDCCH will be received during the first time period.

[0018] In some possible implementations, determining whether the downlink channel is received during the first time period includes:

[0019] In response to the downlink channel being a PDCCH corresponding to a set search space, or a PDSCH scheduled by a DCI transmitted in the set search space, it is determined that the downlink channel will be received during the first time period.

[0020] In some possible implementations, the defined search space is a search space used for beam or link recovery.

[0021] In some possible implementations, determining whether the downlink channel is received during the first time period includes:

[0022] In response to the priority of the downlink channel being set to a priority, it is determined that the downlink channel will be received within the first time period.

[0023] In some possible implementations, determining that the downlink channel is received during the first time period includes: determining that the shutdown period terminates at a first moment or terminates before the first moment; the first moment is the start moment of the first time period.

[0024] In some possible implementations, determining that the downlink channel is received within the first time period includes: updating the start time of the shutdown period to a second time period, wherein the second time period is the end time of the first time period.

[0025] Secondly, a method for transmitting a downlink channel is provided, performed by a network device, including:

[0026] Send indication information to the user equipment, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal;

[0027] In response to the shutdown period including a first period, the first period being all or part of a second period, the second period being the period during which the network device transmits downlink channels, it is determined whether to transmit the downlink channel within the first period.

[0028] In some possible implementations, determining whether to transmit the downlink channel during the first time period includes:

[0029] In response to the downlink channel being PDCCH, and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, it is determined that the PDCCH will not be transmitted during the first time period.

[0030] In some possible implementations, determining whether to transmit the downlink channel during the first time period includes:

[0031] In response to the downlink channel being SPS PDSCH, and the reference signal being configured as QCL type D in the TCI state of SPS PDSCH, it is determined that the SPS PDSCH will not be transmitted during the first time period.

[0032] In some possible implementations, determining whether to transmit the downlink channel during the first time period includes:

[0033] In response to the downlink channel being PDCCH, it is determined that the downlink channel will be transmitted within the first time period;

[0034] Alternatively, in response to the downlink channel being SPS PDSCH, it is determined that the downlink channel will be transmitted within the first time period.

[0035] In some possible implementations, the method further includes:

[0036] In response to the downlink channel being either PDCCH or SPS PDSCH, and the reference signal being configured with QCL type D in the TCI state of the downlink channel, it is determined that the downlink channel will be transmitted during the first time period.

[0037] In some possible implementations, determining whether to transmit the downlink channel during the first time period includes:

[0038] In response to the downlink channel being a PDCCH corresponding to a set search space, or a PDSCH scheduled by a DCI transmitted in the set search space, it is determined that the downlink channel will be transmitted within the first time period.

[0039] In some possible implementations, the defined search space is a search space used for beam or link recovery.

[0040] In some possible implementations, determining whether to transmit the downlink channel during the first time period includes:

[0041] In response to the priority of the downlink channel being set to a priority, it is determined that the downlink channel will be transmitted within the first time period.

[0042] In some possible implementations, determining to transmit the downlink channel within the first time period includes: determining that the shutdown period terminates at a first moment or terminates before the first moment; the first moment is the start moment of the first time period.

[0043] In some possible implementations, determining to transmit the downlink channel within the first time period includes: updating the start time of the shutdown period to a second time period, wherein the second time period is the end time of the first time period.

[0044] Thirdly, an apparatus for receiving a downlink channel is provided, configured in a user equipment, comprising:

[0045] The transceiver module is configured to receive indication information sent by the network device, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal;

[0046] The processing module is configured to determine whether to receive the downlink channel within the first time period in response to the shutdown period including a first time period, the first time period being all or part of a second time period, the second time period being the time period during which the network device transmits the downlink channel.

[0047] Fourthly, an apparatus for transmitting a downlink channel is provided, configured in a network device, comprising:

[0048] The transceiver module is configured to send indication information to the user equipment, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal;

[0049] The processing module is configured to determine whether to transmit the downlink channel within the first time period in response to the shutdown period including a first time period, the first time period being all or part of a second time period, the second time period being the time period during which the network device transmits the downlink channel.

[0050] Fifthly, an electronic device is provided, including a processor and a memory, wherein...

[0051] The memory is used to store computer programs;

[0052] The processor is used to execute the computer program to implement the first aspect or any possible design of the first aspect.

[0053] Sixthly, a communication device is provided, including a processor and a memory, wherein,

[0054] The memory is used to store computer programs;

[0055] The processor is used to execute the computer program to implement the second aspect or any possible design of the second aspect.

[0056] In a seventh aspect, a computer-readable storage medium is provided, wherein instructions are stored therein, which, when invoked and executed on a computer, cause the computer to perform the first aspect or any possible design of the first aspect.

[0057] Eighthly, a computer-readable storage medium is provided, wherein instructions are stored therein, which, when invoked and executed on a computer, cause the computer to perform the second aspect or any possible design of the second aspect.

[0058] In this disclosure, when the network device can dynamically switch the reference signal on and off, and the off period of the reference signal covers a first period, it is determined whether to receive the downlink channel during the first period. This allows for the following: under certain conditions, the downlink channel may not be received to match the network device's dynamic shutdown of the reference signal, or the downlink channel may be received and the dynamic control of the reference signal may be changed accordingly. This makes the control of the downlink channel more reasonable and improves the performance of wireless transmission, provided that the network device can dynamically switch the reference signal on and off. Attached Figure Description

[0059] The accompanying drawings, which are included to provide a further understanding of the embodiments of this disclosure and form part of this application, illustrate exemplary embodiments of this disclosure and, together with their descriptions, serve to explain the embodiments of this disclosure and do not constitute an improper limitation of the embodiments of this disclosure. In the drawings:

[0060] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0061] Figure 1 This is a schematic diagram of a wireless communication system architecture provided in an embodiment of this disclosure;

[0062] Figure 2 This is a flowchart of a method for transmitting a downlink channel provided in an embodiment of this disclosure;

[0063] Figure 3 This is a schematic diagram showing the location of a shutdown period and a first period provided in an embodiment of this disclosure;

[0064] Figure 4 This is a flowchart of a method for transmitting a downlink channel provided in an embodiment of this disclosure;

[0065] Figure 5 This is a flowchart of a method for receiving a downlink channel provided in an embodiment of this disclosure;

[0066] Figure 6 This is a structural diagram of an apparatus for receiving a downlink channel provided in an embodiment of this disclosure;

[0067] Figure 7 This is a structural diagram of an apparatus for receiving a downlink channel provided in an embodiment of this disclosure;

[0068] Figure 8 This is a structural diagram of an apparatus for transmitting a downlink channel according to an embodiment of the present disclosure;

[0069] Figure 9 This is a structural diagram of an apparatus for transmitting a downlink channel provided in an embodiment of this disclosure. Detailed Implementation

[0070] The embodiments of this disclosure will now be further described in conjunction with the accompanying drawings and specific implementation details.

[0071] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0072] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0073] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the words “if” and “suppose” as used herein may be interpreted as “when”, “when”, or “in response to a determination”.

[0074] 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.

[0075] like Figure 1 As shown in the embodiments of this disclosure, a wireless communication system 100 for transmitting downlink channels is provided. The wireless communication system may include a user equipment 101 and a network device 102. The user equipment 101 is configured to support carrier aggregation and can be connected to multiple carrier units of the network device 102, including a primary carrier unit and one or more secondary carrier units.

[0076] 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.

[0077] The user equipment 101 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 101 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 103 shown in the figure.

[0078] User equipment 101 may be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in a future 5G network or terminal device in a future evolved PLMN network, etc.

[0079] Network device 102 can be an access network device (or access point). Access network device refers to equipment that provides network access functionality, such as a radio access network (RAN) base station. Network device 103 may specifically include a base station (BS), or a base station and radio resource management equipment for controlling the base station. Network device 102 may also include relay stations (relay equipment), access points, and base stations in future 5G networks, future PLMN networks, or NR base stations. Network device 102 can be a wearable device or an in-vehicle device. Network device 102 can also be a communication chip with a communication module.

[0080] For example, network equipment 102 includes, but is not limited to: next-generation base stations (gnodeB, gNB) in 5G, evolved node B (eNB) in LTE systems, radio network controllers (RNC), node B (NB) in WCDMA systems, radio controllers and base station controllers (BSC) in CRAN systems, base transceiver stations (BTS) in GSM or CDMA systems, home base stations (e.g., home evolved nodeB, or home node B, HNB), baseband units (BBU), transmitting and receiving points (TRP), transmitting points (TP), or mobile switching centers, etc.

[0081] This disclosure provides a method for transmitting downlink channels. Figure 2 This is a flowchart illustrating a downlink transmission channel according to an exemplary embodiment, such as... Figure 2 As shown, the method includes steps S201-S203:

[0082] S201, the network device sends an indication message to the user equipment, the indication message being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal.

[0083] In some possible implementations, the network device sends configuration information (via Radio Link Control (RRC) signaling) to the user equipment. This configuration information configures at least one spatial element group, which is a candidate group of spatial elements that can be disabled. Each spatial element group includes one or more reference signals. A spatial element group comprises multiple spatial elements, which are at least one of the following: antenna elements, ports, TRX chains, beams, and panels.

[0084] After receiving the instruction information, the user equipment can know which reference signals are turned off and the corresponding off periods.

[0085] S202, the network device sends downlink channel configuration information to the user equipment. The downlink channel configuration information is used to configure a second time period, which is the time period during which the network device sends downlink channels.

[0086] In some possible implementations, when the downlink channel is a physical downlink control channel (PDCCH), the downlink channel configuration information is the search space and CORESET configuration information.

[0087] In some possible implementations, when the downlink channel is a semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH), the downlink channel configuration information is SPSPDSCH configuration information. Here, the SPS PDSCH is a semi-persistent PDSCH, with PDSCH transmission resources configured by higher layers for a specific period, and activated and deactivated using Downlink Control Information (DCI).

[0088] The execution order of S201 and S202 is not limited to executing S201 first and then S202. It can also be executing S202 first and then S201, or executing them simultaneously.

[0089] S203, in response to the shutdown period including a first period, wherein the first period is all or part of the second period, the network device determines whether to transmit the downlink channel during the first period, and the user equipment determines whether to transmit the downlink channel during the first period.

[0090] It should be noted that when the network device determines that it will not transmit the downlink channel during the first time period, it maintains the original shutdown period unchanged. When the network device determines that it will transmit the downlink channel during the first time period, it will activate the corresponding reference signal before transmitting the downlink channel, that is, it will end the shutdown period of the corresponding reference signal in advance.

[0091] In some possible implementations, when the network device determines whether to transmit the downlink channel during the first time period, it determines this based on the downlink channel and the reference signal. Correspondingly, when the user equipment determines whether to receive the downlink channel during the first time period, it determines this based on the downlink channel and the reference signal.

[0092] Given that the PDCCH is UE-specific, the network device can use MAC CE to indicate the TCI state for each CORESET. For SPS PDSCH, the network device can indicate the TCI state during DCI activation. The TCI state includes up to two reference signals. The network device configures the QCL relationship between the PDCCH channel, SPS PDSCH, and these two reference signals separately, which can be configured as QCL type A, QCL type B, QCL type C, QCL type D, etc. If configured as QCL type D, it indicates that the transmission beams of the PDCCH and SPS PDSCH are the same as those of the reference signals.

[0093] In one example,

[0094] In response to the downlink channel being a Physical Downlink Control Channel (PDCCH), and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, the network device determines not to transmit the PDCCH during the first time period, and the user equipment determines not to receive the PDCCH during the first time period.

[0095] In another example,

[0096] In response to the downlink channel being a semi-statically configured Physical Downlink Shared Channel (SPS PDSCH), and the reference signal being configured as QCL type D in the TCI state of the SPS PDSCH, the network device determines not to transmit the SPS PDSCH during the first time period, and the user equipment determines not to receive the SPS PDSCH during the first time period.

[0097] In the two examples above, the downlink channel is not transmitted during the first time period, which matches the behavior of the network device dynamically turning off the reference signal. This gives the network device a higher priority in dynamically turning the reference signal on or off than in transmitting the downlink channel, and the network device's behavior of dynamically turning the reference signal on or off affects the transmission of the corresponding downlink channel.

[0098] In one example, in response to the downlink channel being a Physical Downlink Control Channel (PDCCH) and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, the network device determines to transmit the PDCCH during the first time period, and the user equipment determines to receive the PDCCH during the first time period.

[0099] In another example, in response to the downlink channel being a semi-statically configured Physical Downlink Shared Channel (SPPSDSCH) and the reference signal being configured as QCL type D in the TCI state of the SPPSDSCH, the network device determines to transmit the SPPSDSCH during the first time period, and the user equipment determines to receive the SPPSDSCH during the first time period.

[0100] These two examples can also be described as follows: in response to the downlink channel being either PDCCH or SPS PDSCH, and the reference signal being configured with QCL type D in the TCI state of the downlink channel, the network device determines to transmit the downlink channel during the first time period, and the user equipment determines to receive the downlink channel during the first time period.

[0101] In the two examples above, the downlink channel is still transmitted during the first time period, so that the priority of transmitting the downlink channel is higher than the priority of the network device's dynamic opening or closing of the reference signal, so that the network device's dynamic opening or closing of the reference signal does not affect the transmission of the corresponding downlink channel.

[0102] In some possible implementations, when the network device determines whether to transmit the downlink channel during the first time period, it determines whether to transmit the downlink channel during the first time period based on the downlink channel. Correspondingly, when the user equipment determines whether to receive the downlink channel during the first time period, it determines whether to receive the downlink channel during the first time period based on the downlink channel.

[0103] The following three cases will be used as examples to illustrate this.

[0104] The first type:

[0105] In response to the downlink channel being PDCCH, the PDCCH is received during the first time period; or, in response to the downlink channel being SPS PDSCH, the SPS PDSCH is received during the first time period.

[0106] The second type:

[0107] For certain special CORESETs (such as the CORESET corresponding to the recovery search space), stopping the transmission of the corresponding PDCCH may cause communication interruption for user equipment. Therefore, such CORESETs should not be affected by the dynamic switching reference signals of network devices.

[0108] In response to the downlink channel being a PDCCH corresponding to a set search space, or a PDSCH scheduled by a DCI used for transmission in the set search space, the network device determines to transmit the downlink channel during the first time period, and the user equipment determines to receive the downlink channel during the first time period.

[0109] For example, the search space is set as a search space for beam or link recovery, so that, in response to the downlink channel being a PDCCH corresponding to the search space for beam or link recovery, or a PDSCH scheduled by a DCI transmitted in the search space for beam or link recovery, the network device determines to transmit the downlink channel in the first time period, and the user equipment determines to receive the downlink channel in the first time period.

[0110] Another conceivable implementation is to stipulate in the protocol that the reference signal configured as QCL type D in the TCI state of the CORESET corresponding to the search space cannot be turned off. For example, if the search space is set as a search space for beam or link recovery, then the reference signal configured as QCL type D in the TCI state of the CORESET corresponding to the search space for beam or link recovery cannot be turned off.

[0111] The third type:

[0112] For an SPS PDSCH configured with a set priority, it should not be affected by the network device's dynamic switching reference signal. Therefore, in response to the downlink channel having a set priority, the network device determines to transmit the downlink channel during the first time period, and the user equipment determines to receive the downlink channel during the first time period. For example: in response to the downlink channel having the highest priority, the network device determines to transmit the downlink channel during the first time period, and the user equipment determines to receive the downlink channel during the first time period.

[0113] In another implementation, it can be stipulated in the protocol that the reference signal configured as QCL type D in the TCI state corresponding to the SPSPDSCH configured to set a priority cannot be turned off. For example, the reference signal configured as QCL type D in the TCI state corresponding to the SPS PDSCH configured as the highest priority cannot be turned off.

[0114] In all three scenarios described above, the downlink channel continues to be transmitted during the first time period, unaffected by the network device's dynamic shutdown of the reference signal. Thus, the network device's dynamic opening or closing of the reference signal does not affect the transmission of the corresponding downlink channel.

[0115] In some possible implementations, when the network device determines that the downlink channel will be transmitted during the first time period, and when the user equipment receives the downlink channel during the first time period, the shutdown period is adjusted to ensure smooth transmission of the downlink channel. Figure 3 ( Figure 3 In the diagram, the dashed area corresponds to the second time period, and the diagonally filled area corresponds to the first time period. The method for adjusting the closing time period can be one of the following:

[0116] Method 1: Determine whether the shutdown period ends at a first moment or before a first moment, where the first moment is the start time of the first period. That is, terminate the shutdown period in advance.

[0117] Applicable to, for example Figure 3 The first figure shows the situation where the start of the closing period is earlier than the start of the first period.

[0118] Applicable to, for example Figure 3 The second diagram shows a situation where the start position of the closing period overlaps with the start position of the first period. In this case, the closing period is not opened (i.e., it is not effective).

[0119] Method 2: Update the start time of the shutdown period to a second time, where the second time is the end time of the first period. This delays the activation of the shutdown period. Applicable to situations such as... Figure 3 The second figure shows a situation where the starting position of the closing period overlaps with the starting position of the first period.

[0120] In this embodiment of the disclosure, when the network device can dynamically switch the reference signal on and off, and the period during which the reference signal is turned off covers a first period, it is determined whether to receive the downlink channel during the first period. This allows for the following: under certain conditions, the downlink channel may not be received to match the network device's dynamic shutdown of the reference signal, or the downlink channel may be received and the dynamic control of the reference signal may be changed accordingly. This makes the control of the downlink channel more reasonable and improves the performance of wireless transmission, provided that the network device can dynamically switch the reference signal on and off.

[0121] This disclosure provides a method for receiving a downlink channel, executed by a user equipment. Figure 4 This is a flowchart illustrating a downlink transmission channel according to an exemplary embodiment, such as... Figure 4 As shown, the method includes steps S401-S402:

[0122] S401, Receive indication information sent by network device, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal.

[0123] In some possible implementations, configuration information (received via Radio Link Control (RRC) signaling) sent by a network device is received. This configuration information is used to configure at least one spatial element group, which is a candidate group of spatial elements that can be disabled. Each spatial element group includes one or more reference signals. A spatial element group includes multiple spatial elements, which are at least one of the following: antenna elements, ports, TRX chains, beams, and panels.

[0124] After receiving the instruction information, the user equipment can know which reference signals are turned off and the corresponding off periods.

[0125] S402, in response to the shutdown period including a first period, the first period being all or part of a second period, the second period being the period during which the network device transmits downlink channels, determine whether to receive the downlink channel within the first period.

[0126] The second time period refers to the information that the user equipment has learned through the received downlink channel configuration information. The downlink channel configuration information is used to configure the second time period, which is the time period during which the network device sends downlink channels.

[0127] In some possible implementations, when the downlink channel is a physical downlink control channel (PDCCH), the downlink channel configuration information is the search space and CORESET configuration information.

[0128] In some possible implementations, when the downlink channel is a semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH), the downlink channel configuration information is SPSPDSCH configuration information.

[0129] In some possible implementations, when the user equipment determines whether to receive the downlink channel during the first time period, it determines whether to receive the downlink channel during the first time period based on the downlink channel and the reference signal.

[0130] Given that the PDCCH is UE-specific, the network device can use MAC CE to indicate the TCI state for each CORESET. For SPS PDSCH, the network device can indicate the TCI state during DCI activation. The TCI state includes up to two reference signals. The network device configures the QCL relationship between the PDCCH channel, SPS PDSCH, and these two reference signals separately, which can be configured as QCL type A, QCL type B, QCL type C, QCL type D, etc. If configured as QCL type D, it indicates that the transmission beams of the PDCCH and SPS PDSCH are the same as those of the reference signals.

[0131] In one example,

[0132] In response to the downlink channel being a Physical Downlink Control Channel (PDCCH), and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, the user equipment determines that it will not receive the PDCCH during the first time period.

[0133] In another example,

[0134] In response to the downlink channel being a semi-statically configured Physical Downlink Shared Channel (SPS PDSCH), and the reference signal being configured as QCL type D in the TCI state of the SPS PDSCH, the user equipment determines that it will not receive the SPS PDSCH during the first time period.

[0135] In the two examples above, not receiving the downlink channel during the first time period matches the behavior of the network device dynamically turning off the reference signal. Thus, the behavior of the network device dynamically turning the reference signal on or off can affect the reception of the corresponding downlink channel.

[0136] In one example, in response to the downlink channel being a Physical Downlink Control Channel (PDCCH) and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, the user equipment determines to receive the PDCCH during the first time period.

[0137] In another example, in response to the downlink channel being a semi-statically configured Physical Downlink Shared Channel (SPPSDSCH) and the reference signal being configured as QCL type D in the TCI state of the SPS PDSCH, the user equipment determines to receive the SPS PDSCH during the first time period.

[0138] These two examples can also be described as follows: in response to the downlink channel being either PDCCH or SPS PDSCH, and the reference signal being configured with QCL type D in the TCI state of the downlink channel, the user equipment determines to receive the downlink channel during the first time period.

[0139] In the two examples above, the downlink channel is still transmitted during the first time period, so that the priority of transmitting the downlink channel is higher than the priority of the network device's dynamic opening or closing of the reference signal, so that the network device's dynamic opening or closing of the reference signal does not affect the reception of the corresponding downlink channel.

[0140] In some possible implementations, when the user equipment determines whether to receive the downlink channel during the first time period, it determines whether to receive the downlink channel during the first time period based on the downlink channel.

[0141] The following three cases will be used as examples to illustrate this.

[0142] The first type:

[0143] In response to the downlink channel being PDCCH, the PDCCH is received during the first time period; or, in response to the downlink channel being SPS PDSCH, the SPS PDSCH is received during the first time period.

[0144] The second type:

[0145] For certain special CORESETs (such as the CORESET corresponding to the recovery search space), stopping the transmission of the corresponding PDCCH may cause communication interruption for user equipment. Therefore, such CORESETs should not be affected by the dynamic switching reference signals of network devices.

[0146] In response to the downlink channel being a PDCCH corresponding to a set search space, or a PDSCH scheduled by a DCI used for transmission in the set search space, the user equipment determines to receive the downlink channel during the first time period.

[0147] For example, the search space is set as a search space for beam or link recovery, so that, in response to the downlink channel being the PDCCH corresponding to the search space for beam or link recovery, or the PDSCH scheduled by the DCI transmitted in the search space for beam or link recovery, the user equipment determines to receive the downlink channel in the first time period.

[0148] The third type:

[0149] For SPS PDSCHs configured with a set priority, they should not be affected by network device dynamic switching reference signals. Therefore, in response to the downlink channel having a set priority, the user equipment determines to receive the downlink channel during the first time period. For example, in response to the downlink channel having the highest priority, the user equipment determines to receive the downlink channel during the first time period.

[0150] In the three examples above, the downlink channel is still received during the first time period, unaffected by the network device's dynamic shutdown of the reference signal. Thus, the network device's dynamic opening or closing of the reference signal does not affect the reception of the corresponding downlink channel.

[0151] In some possible implementations, when the user equipment receives the downlink channel during the first time period, the shutdown period is adjusted to ensure smooth transmission of the downlink channel, combined with... Figure 3 ( Figure 3 In the diagram, the dashed area corresponds to the second time period, and the diagonally filled area corresponds to the first time period. The method for adjusting the closing time period can be one of the following:

[0152] Method 1: Determine whether the shutdown period ends at a first moment or before a first moment, where the first moment is the start time of the first period. That is, terminate the shutdown period in advance.

[0153] Applicable to, for example Figure 3 The first figure shows the situation where the start of the closing period is earlier than the start of the first period.

[0154] Applicable to, for example Figure 3 The second diagram shows a situation where the start position of the closing period overlaps with the start position of the first period. In this case, the closing period is not opened (i.e., it is not effective).

[0155] Method 2: Update the start time of the shutdown period to a second time, where the second time is the end time of the first period. This delays the activation of the shutdown period.

[0156] Applicable to, for example Figure 3 The second figure shows a situation where the starting position of the closing period overlaps with the starting position of the first period.

[0157] This disclosure provides a method for transmitting downlink channels, executed by a network device. Figure 5 This is a flowchart illustrating a downlink channel transmission according to an exemplary embodiment, such as... Figure 5 As shown, the method includes steps S501-S502:

[0158] S501, send indication information to the user equipment, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal.

[0159] In some possible implementations, the network device sends configuration information (via Radio Link Control (RRC) signaling) to the user equipment. This configuration information configures at least one spatial element group, which is a candidate group of spatial elements that can be disabled. Each spatial element group includes one or more reference signals. A spatial element group comprises multiple spatial elements, which are at least one of the following: antenna elements, ports, TRX chains, beams, and panels.

[0160] After receiving the instruction information, the user equipment can know which reference signals are turned off and the corresponding off periods.

[0161] S502, in response to the shutdown period including a first period, the first period being all or part of a second period, the second period being the period during which the network device transmits downlink channels, determine whether to transmit the downlink channel within the first period.

[0162] The second time period refers to the period during which the network device transmits downlink channels. The network device can send downlink channel configuration information to the user equipment, which is used to configure the second time period so that the user equipment is aware of the second time period.

[0163] In some possible implementations, when the downlink channel is a physical downlink control channel (PDCCH), the downlink channel configuration information is the search space and CORESET configuration information.

[0164] In some possible implementations, when the downlink channel is a semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH), the downlink channel configuration information is SPSPDSCH configuration information.

[0165] In some possible implementations, when a network device determines whether to transmit the downlink channel during the first time period, it determines whether to transmit the downlink channel during the first time period based on the downlink channel and the reference signal.

[0166] Given that the PDCCH is UE-specific, the network device can use MAC CE to indicate the TCI state for each CORESET. For SPS PDSCH, the network device can indicate the TCI state during DCI activation. The TCI state includes up to two reference signals. The network device configures the QCL relationship between the PDCCH channel, SPS PDSCH, and these two reference signals separately, which can be configured as QCL type A, QCL type B, QCL type C, QCL type D, etc. If configured as QCL type D, it indicates that the transmission beams of the PDCCH and SPS PDSCH are the same as those of the reference signals.

[0167] In one example,

[0168] In response to the downlink channel being a Physical Downlink Control Channel (PDCCH) and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, the network device determines not to transmit the PDCCH during the first time period.

[0169] In another example,

[0170] In response to the downlink channel being a semi-statically configured Physical Downlink Shared Channel (SPS PDSCH), and the reference signal being configured as QCL type D in the TCI state of the SPS PDSCH, the network device determines not to transmit the SPS PDSCH during the first time period.

[0171] In the two examples above, the downlink channel is not transmitted during the first time period, which matches the behavior of the network device dynamically turning off the reference signal. Thus, the behavior of the network device dynamically turning the reference signal on or off can affect the transmission of the corresponding downlink channel.

[0172] In one example, in response to the downlink channel being a Physical Downlink Control Channel (PDCCH) and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, the network device determines to transmit the PDCCH during the first time period.

[0173] In another example, in response to the downlink channel being a semi-statically configured Physical Downlink Shared Channel (SPPSDSCH) and the reference signal being configured as QCL type D in the TCI state of the SPS PDSCH, the network device determines to transmit the SPS PDSCH during the first time period.

[0174] These two examples can also be described as follows: in response to the downlink channel being either PDCCH or SPS PDSCH, and the reference signal being configured with QCL type D in the TCI state of the downlink channel, the network device determines to transmit the downlink channel during the first time period.

[0175] In the two examples above, the downlink channel is still transmitted during the first time period, so that the priority of transmitting the downlink channel is higher than the priority of the network device's dynamic opening or closing of the reference signal, so that the network device's dynamic opening or closing of the reference signal does not affect the transmission of the corresponding downlink channel.

[0176] In some possible implementations, when the network device determines whether to transmit the downlink channel during the first time period, it determines whether to transmit the downlink channel during the first time period based on the downlink channel.

[0177] The following three cases will be used as examples to illustrate this.

[0178] The first type:

[0179] In response to the downlink channel being PDCCH, the PDCCH is transmitted during the first time period; or, in response to the downlink channel being SPS PDSCH, the SPS PDSCH is determined to be transmitted during the first time period.

[0180] The second type:

[0181] For certain special CORESETs (such as the CORESET corresponding to the recovery search space), stopping the transmission of the corresponding PDCCH may cause communication interruption for user equipment. Therefore, such CORESETs should not be affected by the dynamic switching reference signals of network devices.

[0182] In response to the downlink channel being a PDCCH corresponding to a set search space, or a PDSCH scheduled by a DCI used for transmission in the set search space, the network device determines to transmit the downlink channel during the first time period.

[0183] For example, the search space is set as a search space for beam or link recovery, so that, in response to the downlink channel being a PDCCH corresponding to the search space for beam or link recovery, or a PDSCH scheduled by a DCI transmitted in the search space for beam or link recovery, the network device determines to transmit the downlink channel in the first time period.

[0184] The third type:

[0185] For SPS PDSCHs configured with a set priority, they should not be affected by network device dynamic switching reference signals. Therefore, in response to the downlink channel having a set priority, the network device determines to transmit the downlink channel within the first time period. For example, in response to the downlink channel having the highest priority, the network device determines to transmit the downlink channel within the first time period.

[0186] In the three examples above, the downlink channel is still transmitted during the first time period, unaffected by the network device's dynamic shutdown of the reference signal. Thus, the network device's dynamic opening or closing of the reference signal does not affect the transmission of the corresponding downlink channel.

[0187] In some possible implementations, when the network device determines that the downlink channel will be transmitted during the first time period, the shutdown period is adjusted to ensure smooth transmission of the downlink channel, in conjunction with... Figure 3 ( Figure 3 In the diagram, the dashed area corresponds to the second time period, and the diagonally filled area corresponds to the first time period. The method for adjusting the closing time period can be one of the following:

[0188] Method 1: Determine whether the shutdown period ends at a first moment or before a first moment, where the first moment is the start time of the first period. That is, terminate the shutdown period in advance.

[0189] Applicable to, for example Figure 3 The first figure shows the situation where the start of the closing period is earlier than the start of the first period.

[0190] Applicable to, for example Figure 3 The second diagram shows a situation where the start position of the closing period overlaps with the start position of the first period. In this case, the closing period is not activated (i.e., it is not effective).

[0191] Method 2: Update the start time of the shutdown period to a second time, where the second time is the end time of the first period. This delays the activation of the shutdown period.

[0192] Applicable to, for example Figure 3 The second figure shows a situation where the starting position of the closing period overlaps with the starting position of the first period.

[0193] Based on the same concept as the above method embodiments, this disclosure also provides a communication device that can have the functions of the user equipment 102 in the above method embodiments and is used to execute the steps performed by the user equipment 102 provided in the above embodiments. This function can be implemented in hardware, or in software, or in hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0194] In one possible implementation, such as Figure 6 The communication device 600 shown can serve as the user equipment 102 involved in the above method embodiment and execute the steps performed by the user equipment 102 in the above method embodiment.

[0195] The communication device 600 includes a transceiver module 601 and a processing module 602.

[0196] The transceiver module 601 is configured to receive indication information sent by the network device, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal;

[0197] In response to the shutdown period including a first period, the first period being all or part of a second period, the second period being the period during which the network device transmits downlink channels, the processing module 602 determines whether to receive the downlink channel within the first period.

[0198] In some possible implementations, the processing module 602 is further configured to: determine that the PDCCH will not be received during the first time period in response to the downlink channel being a Physical Downlink Control Channel (PDCCH) and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH.

[0199] In some possible implementations, the processing module 602 is further configured to: determine that the SPS PDSCH will not be received during the first time period in response to the downlink channel being a semi-statically configured Physical Downlink Shared Channel (SPS PDSCH) and the reference signal being configured as QCL type D in the TCI state of the SPS PDSCH.

[0200] In some possible implementations, the processing module 602 is further configured to: determine, in response to the downlink channel being a PDCCH, receive the PDCCH within the first time period; or, in response to the downlink channel being an SPS PDSCH, determine to receive the SPS PDSCH within the first time period.

[0201] In some possible implementations, the processing module 602 is further configured to: determine that the downlink channel is received during the first time period in response to the downlink channel being either PDCCH or SPS PDSCH, and the reference signal being configured with QCL type D in the TCI state of the downlink channel.

[0202] In some possible implementations, the processing module 602 is further configured to: determine to receive the downlink channel during the first time period in response to the downlink channel being a PDCCH corresponding to a set search space, or a PDSCH scheduled by a DCI transmitted in the set search space.

[0203] In some possible implementations, the defined search space is a search space used for beam or link recovery.

[0204] In some possible implementations, the processing module 602 is further configured to: determine, in response to the priority of the downlink channel being set to a priority, receive the downlink channel within the first time period.

[0205] In some possible implementations, the processing module 602 is further configured to: determine whether the shutdown period terminates at a first moment or before the first moment; the first moment is the start moment of the first period.

[0206] When the communication device is user equipment 102, its structure can also be as follows: Figure 7 As shown.

[0207] Figure 7 This is a block diagram illustrating an apparatus 700 for receiving a downlink channel according to an exemplary embodiment. For example, apparatus 700 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0208] Reference Figure 7 The device 700 may include one or more of the following components: a processing component 702, a memory 704, a power component 706, a multimedia component 708, an audio component 710, an input / output (I / O) interface 712, a sensor component 714, and a communication component 716.

[0209] Processing component 702 typically controls the overall operation of device 700, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 702 may include one or more processors 720 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 702 may include one or more modules to facilitate interaction between processing component 702 and other components. For example, processing component 702 may include a multimedia module to facilitate interaction between multimedia component 708 and processing component 702.

[0210] Memory 704 is configured to store various types of data to support the operation of device 700. Examples of this data include instructions for any application or method operating on device 700, contact data, phonebook data, messages, pictures, videos, etc. Memory 704 can be implemented by any type of volatile or non-volatile storage device 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 storage, flash memory, magnetic disk, or optical disk.

[0211] The power supply component 706 provides power to the various components of the device 700. The power supply component 706 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 700.

[0212] Multimedia component 708 includes a screen that provides an output interface between the device 700 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 708 includes a front-facing camera and / or a rear-facing camera. When the device 700 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0213] Audio component 710 is configured to output and / or input audio signals. For example, audio component 710 includes a microphone (MIC) configured to receive external audio signals when device 700 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 704 or transmitted via communication component 716. In some embodiments, audio component 710 also includes a speaker for outputting audio signals.

[0214] I / O interface 712 provides an interface between processing component 702 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0215] Sensor assembly 714 includes one or more sensors for providing status assessments of various aspects of device 700. For example, sensor assembly 714 may detect the on / off state of device 700, the relative positioning of components such as the display and keypad of device 700, changes in the position of device 700 or a component of device 700, the presence or absence of user contact with device 700, the orientation or acceleration / deceleration of device 700, and temperature changes of device 700. Sensor assembly 714 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 714 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0216] Communication component 716 is configured to facilitate wired or wireless communication between device 700 and other devices. Device 700 can access wireless networks based on communication standards, such as WiFi, 4G, or 5G, or combinations thereof. In one exemplary embodiment, communication component 716 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 716 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0217] In an exemplary embodiment, the apparatus 700 may be implemented by 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, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0218] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 704 including instructions, which can be executed by a processor 720 of the device 700 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0219] Based on the same concept as the above method embodiments, this disclosure also provides a communication device that can have the functions of the network device 101 in the above method embodiments and is used to execute the steps performed by the network device 101 provided in the above embodiments. This function can be implemented by hardware, or by software, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0220] In one possible implementation, such as Figure 8 The communication device 800 shown can serve as the network device 101 involved in the above method embodiments and execute the steps performed by the network device 101 in the above method embodiments.

[0221] like Figure 8 The communication device 800 shown includes a transceiver module 801 and a processing module 802.

[0222] The transceiver module 801 is configured to send indication information to the user equipment, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal;

[0223] The processing module 802 is configured to determine whether to send the downlink channel within the first time period in response to the shutdown period including a first time period, the first time period being all or part of a second time period, the second time period being the time period during which the network device sends downlink channels.

[0224] In one possible implementation, the processing module 802 is further configured to determine, in response to the downlink channel being PDCCH and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, not to transmit the PDCCH during the first time period.

[0225] In one possible implementation, the processing module 802 is further configured to determine, in response to the downlink channel being SPSPDSCH and the reference signal being configured as QCL type D in the TCI state of the SPS PDSCH, not to transmit the SPS PDSCH during the first time period.

[0226] In one possible implementation, the processing module 802 is further configured to determine, in response to the downlink channel being PDCCH, to transmit the PDCCH within the first time period; or, in response to the downlink channel being SPS PDSCH, to determine to transmit the SPS PDSCH within the first time period.

[0227] In one possible implementation, the processing module 802 is further configured to determine, in response to the downlink channel being either PDCCH or SPS PDSCH, and the reference signal being configured with QCL type D in the TCI state of the downlink channel, to transmit the downlink channel during the first time period.

[0228] In one possible implementation, the processing module 802 is further configured to determine, in response to the downlink channel being a PDCCH corresponding to a set search space, or a PDSCH scheduled by a DCI transmitted in the set search space, to transmit the downlink channel within the first time period.

[0229] In one possible implementation, the defined search space is a search space used for beam or link recovery.

[0230] In one possible implementation, the processing module 802 is further configured to determine, in response to the priority of the downlink channel being set to a priority, to transmit the downlink channel within the first time period.

[0231] In one possible implementation, the processing module 802 is further configured to determine whether the shutdown period terminates at a first moment or before the first moment; the first moment is the start moment of the first period.

[0232] When the communication device is a network device 101, its structure can also be as follows: Figure 9 As shown. Figure 9As shown, the device 900 includes a memory 901, a processor 902, a transceiver component 903, and a power supply component 906. The memory 901 is coupled to the processor 902 and can be used to store the programs and data necessary for the communication device 900 to implement its various functions. The processor 902 is configured to support the communication device 900 in performing the corresponding functions described above; this function can be implemented by calling the programs stored in the memory 901. The transceiver component 903 can be a wireless transceiver, used to support the communication device 900 in receiving signaling and / or data, and transmitting signaling and / or data via a wireless air interface. The transceiver component 903 can also be referred to as a transceiver unit or communication unit. The transceiver component 903 may include a radio frequency component 904 and one or more antennas 905. The radio frequency component 904 can be a remote radio unit (RRU), specifically used for transmitting radio frequency signals and converting radio frequency signals to baseband signals. The one or more antennas 905 are specifically used for radiating and receiving radio frequency signals.

[0233] When the communication device 900 needs to send data, the processor 902 performs baseband processing on the data to be sent and outputs a baseband signal to the radio frequency (RF) unit. The RF unit then performs RF processing on the baseband signal and transmits the RF signal as electromagnetic waves through an antenna. When data is sent to the communication device 900, the RF unit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 902. The processor 902 converts the baseband signal back into data and processes the data.

[0234] Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of the present disclosure that follow the general principles of the embodiments of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the embodiments of the present disclosure are indicated by the following claims.

[0235] It should be understood that the embodiments disclosed herein are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments disclosed herein is limited only by the appended claims.

[0236] Industrial applicability

[0237] When a network device can dynamically switch a reference signal on and off, and the period during which the reference signal is turned off covers a first time period, it is determined whether to receive the downlink channel within the first time period. This allows for the following: under certain conditions, the downlink channel may not be received to match the network device's dynamic shutdown of the reference signal, or the downlink channel may be received and the dynamic control of the reference signal may be changed accordingly. This results in more reasonable control of the downlink channel and improved wireless transmission performance, provided that the network device can dynamically switch the reference signal on and off.

Claims

1. A method for receiving a downlink channel, performed by a user equipment, comprising: Receive indication information sent by a network device, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal; In response to the shutdown period including a first period, the first period being all or part of a second period, the second period being the period during which the network device transmits downlink channels, it is determined whether to receive the downlink channel within the first period; When it is determined that the downlink channel is received within the first time period, it is determined that the closing time period terminates at a first moment or terminates before the first moment, where the first moment is the start moment of the first time period; or, the start moment of the closing time period is updated to a second moment, where the second moment is the end moment of the first time period. If it is determined that the downlink channel will not be received during the first time period, the original shutdown period remains unchanged.

2. The method as described in claim 1, wherein, Determining whether to receive the downlink channel within the first time period includes: In response to the downlink channel being a Physical Downlink Control Channel (PDCCH), and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, it is determined that the PDCCH will not be received during the first time period.

3. The method as described in claim 1, wherein, Determining whether to receive the downlink channel within the first time period includes: In response to the downlink channel being a semi-statically configured Physical Downlink Shared Channel (SPSPDSCH), and the reference signal being configured as QCL type D in the TCI state of the SPSPDSCH, it is determined that the SPSPDSCH will not be received during the first time period.

4. The method of claim 1, wherein, Determining whether to receive the downlink channel within the first time period includes: In response to the downlink channel being PDCCH, it is determined that the downlink channel will be received during the first time period; Alternatively, in response to the downlink channel being SPS PDSCH, it is determined that the downlink channel will be received during the first time period.

5. The method of claim 4, wherein, Determining whether to receive the downlink channel within the first time period includes: In response to the downlink channel being either PDCCH or SPS PDSCH, and the reference signal being configured with QCL type D in the TCI state of the downlink channel, it is determined that the downlink channel will be received during the first time period.

6. The method of claim 1, wherein, Determining whether to receive the downlink channel within the first time period includes: In response to the downlink channel being a PDCCH corresponding to a set search space, or a PDSCH scheduled by a DCI transmitted in the set search space, it is determined that the downlink channel will be received during the first time period.

7. The method of claim 6, wherein, The defined search space is a search space used for beam or link recovery.

8. The method of claim 6, wherein, The reference signal configured as QCL type D in the TCI state corresponding to the set search space cannot be turned off.

9. The method of claim 1, wherein, Determining whether to receive the downlink channel within the first time period includes: In response to the priority of the downlink channel being set to a priority, it is determined that the downlink channel will be received within the first time period.

10. The method of claim 9, wherein, The reference signal configured as QCL type D in the TCI state corresponding to the downlink channel configured with the set priority cannot be turned off.

11. The method of claim 1, wherein, The determination that the shutdown period terminates at the first moment or before the first moment includes: If the start time of the shutdown period is earlier than the first time, or if the start time of the shutdown period overlaps with the first time, it is determined that the shutdown period terminates at the first time or terminates before the first time.

12. The method of claim 1, wherein, The method further includes: The system receives configuration information sent by a network device. The configuration information is used to configure at least one spatial unit group, which is a candidate spatial unit group that can be turned off. Each spatial unit group includes one or more of the reference signals.

13. A method for transmitting a downlink channel, performed by a network device, comprising: Send indication information to the user equipment, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal; In response to the shutdown period including a first period, the first period being all or part of a second period, the second period being the period during which the network device transmits downlink channels, it is determined whether to transmit the downlink channel within the first period; When it is determined that the downlink channel is transmitted within the first time period, it is determined that the closing time period terminates at a first moment or terminates before the first moment, where the first moment is the start moment of the first time period; or, the start moment of the closing time period is updated to a second moment, where the second moment is the end moment of the first time period. If it is determined that the downlink channel will not be transmitted during the first time period, the original shutdown period remains unchanged.

14. The method of claim 13, wherein, Determining whether to transmit the downlink channel within the first time period includes: In response to the downlink channel being PDCCH, and the reference signal being configured as QCL type D in the TCI state of the CORESET associated with the PDCCH, it is determined that the PDCCH will not be transmitted during the first time period.

15. The method of claim 13, wherein, Determining whether to transmit the downlink channel within the first time period includes: In response to the downlink channel being SPSPDSCH, and the reference signal being configured as QCL type D in the TCI state of the SPS PDSCH, it is determined that the SPS PDSCH will not be transmitted during the first time period.

16. The method of claim 13, wherein, Determining whether to transmit the downlink channel within the first time period includes: In response to the downlink channel being PDCCH, it is determined that the downlink channel will be transmitted within the first time period; Alternatively, in response to the downlink channel being SPS PDSCH, it is determined that the downlink channel will be transmitted within the first time period.

17. The method of claim 16, wherein, The method further includes: In response to the downlink channel being either PDCCH or SPS PDSCH, and the reference signal being configured with QCL type D in the TCI state of the downlink channel, it is determined that the downlink channel will be transmitted during the first time period.

18. The method of claim 13, wherein, Determining whether to transmit the downlink channel within the first time period includes: In response to the downlink channel being a PDCCH corresponding to a set search space, or a PDSCH scheduled by a DCI transmitted in the set search space, it is determined that the downlink channel will be transmitted within the first time period.

19. The method of claim 18, wherein, The defined search space is a search space used for beam or link recovery.

20. The method of claim 18, wherein, The reference signal configured as QCL type D in the TCI state corresponding to the set search space cannot be turned off.

21. The method of claim 13, wherein, Determining whether to transmit the downlink channel within the first time period includes: In response to the priority of the downlink channel being set to a priority, it is determined that the downlink channel will be transmitted within the first time period.

22. The method of claim 21, wherein, The reference signal configured as QCL type D in the TCI state corresponding to the downlink channel configured with the set priority cannot be turned off.

23. The method of claim 13, wherein, The determination that the shutdown period terminates at the first moment or before the first moment includes: If the start time of the shutdown period is earlier than the first time, or if the start time of the shutdown period overlaps with the first time, it is determined that the shutdown period terminates at the first time or terminates before the first time.

24. The method of claim 13, wherein, The method further includes: Configuration information sent to the user equipment, the configuration information being used to configure at least one spatial unit group, the spatial unit group being a candidate spatial unit group that can be shut down, each spatial unit group including one or more of the reference signals.

25. An apparatus for receiving a downlink channel, configured in a user equipment, the apparatus comprising: The transceiver module is configured to receive indication information sent by the network device, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal; The processing module is configured to determine whether to receive the downlink channel during the first time period in response to the shutdown period including a first time period, the first time period being all or part of a second time period, the second time period being the time period during which the network device transmits the downlink channel; When it is determined that the downlink channel is received within the first time period, it is determined that the closing time period terminates at a first moment or terminates before the first moment, where the first moment is the start moment of the first time period; or, the start moment of the closing time period is updated to a second moment, where the second moment is the end moment of the first time period. If it is determined that the downlink channel will not be received during the first time period, the original shutdown period remains unchanged.

26. An apparatus for transmitting a downlink channel, configured in a network device, the apparatus comprising: The transceiver module is configured to send indication information to the user equipment, the indication information being used to indicate that the reference signal is turned off and the corresponding off period of the reference signal; The processing module is configured to determine whether to send the downlink channel during the first time period in response to the shutdown period including a first time period, the first time period being all or part of a second time period, the second time period being the time period during which the network device sends downlink channels; When it is determined that the downlink channel is transmitted within the first time period, it is determined that the closing time period terminates at a first moment or terminates before the first moment, where the first moment is the start moment of the first time period; or, the start moment of the closing time period is updated to a second moment, where the second moment is the end moment of the first time period. If it is determined that the downlink channel will not be transmitted during the first time period, the original shutdown period remains unchanged.

27. An electronic device comprising a processor and a memory, wherein, The memory is used to store computer programs; The processor is used to execute the computer program to implement the method as described in any one of claims 1-12.

28. A communication device, comprising a processor and a memory, wherein, The memory is used to store computer programs; The processor is used to execute the computer program to implement the method as described in any one of claims 13-24.

29. A computer-readable storage medium storing instructions that, when invoked and executed on a computer, cause the computer to perform the method as described in any one of claims 1-12.

30. A computer-readable storage medium storing instructions that, when invoked and executed on a computer, cause the computer to perform the method as described in any one of claims 13-24.

Images