Downlink channel transmission methods and apparatuses, and device and readable storage medium

Abstract

The present application belongs to the technical field of communications. Disclosed are downlink channel transmission methods and apparatuses, and a device and a readable storage medium. A method in the embodiments of the present application comprises: on the basis of first information, a terminal determining at least one of the following: whether to enable a target transmission function, the number of target resource sets, the number of candidate transmission positions or monitoring positions for a target resource set, the number of repeated transmissions for a target downlink channel, and the resource position of a target resource set; and the terminal receiving the target downlink channel on at least one target resource set, wherein the target downlink channel repeatedly transmits or carries the same content on one or more target resource sets.

Description

Downlink channel transmission methods, apparatus, devices, and readable storage media

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411593848.X, filed in China on November 8, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, and specifically relates to a method, apparatus, device and readable storage medium for transmitting downlink channels. Background Technology

[0004] In non-terrestrial network (NTN) communications, or narrowband or low-power communication systems, due to long communication distances or limited equipment capabilities, the link budget of the downlink channel may have a large gap. This results in lower received signal energy, thereby reducing the probability of successful reception of control information and affecting the transmission reliability of the downlink control channel. Summary of the Invention

[0005] This application provides a method, apparatus, device, and readable storage medium for transmitting downlink channels, which can improve the transmission reliability of downlink control channels.

[0006] Firstly, a method for transmitting data in a downlink channel is provided, comprising:

[0007] Based on the first information, the terminal determines at least one of the following: whether the target transmission function is enabled, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmissions of the target downlink channel, and the resource location of the target resource set.

[0008] The terminal receives a target downlink channel in at least one target resource set;

[0009] The target downlink channel repeatedly transmits or carries the same content on one or more target resource sets.

[0010] Secondly, a method for transmitting data in a downlink channel is provided, comprising:

[0011] The network-side device sends first information, which is used to determine at least one of the following: whether the target transmission function is enabled; the number of target resource sets; the number of candidate transmission locations or monitoring locations of the target resource sets; the number of repeated transmissions of the target downlink channel; and the resource location of the target resource set.

[0012] The network-side device transmits the target downlink channel through at least one target resource set.

[0013] Thirdly, a transmission apparatus for a downlink channel is provided, comprising: a first transceiver unit and a first processing unit;

[0014] The first processing unit is configured to determine at least one of the following based on the first information: whether the target transmission function is enabled, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmissions of the target downlink channel, and the resource location of the target resource set.

[0015] The first transceiver unit is used to receive a target downlink channel in at least one target resource set;

[0016] The target downlink channel repeatedly transmits or carries the same content on one or more target resource sets.

[0017] Fourthly, a transmission apparatus for a downlink channel is provided, comprising: a second transceiver unit and a second processing unit;

[0018] The second transceiver unit is used to send first information, which is used to determine at least one of the following: whether the target transmission function is enabled; the number of target resource sets; the number of candidate transmission positions or monitoring positions of the target resource sets; the number of repeated transmissions of the target downlink channel; and the resource location of the target resource set.

[0019] The second transceiver unit is also configured to transmit the target downlink channel through at least one target resource set.

[0020] Fifthly, a transmission apparatus for a downlink channel is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0021] In a sixth aspect, a terminal is provided, the device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0022] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the processor determines at least one of the following based on first information: whether a target transmission function is enabled, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmissions of the target downlink channel, and the resource location of the target resource set; the communication interface is used to receive the target downlink channel in at least one target resource set; wherein the target downlink channel repeatedly transmits or carries the same content on one or more target resource sets.

[0023] Eighthly, a network-side device is provided, the device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0024] A ninth aspect provides a network-side device, including a processor and a communication interface, wherein the communication interface is configured to send first information, the first information being configured to determine at least one of the following: whether a target transmission function is enabled; the number of target resource sets; the number of candidate transmission locations or listening locations of the target resource sets; the number of repeated transmissions of the target downlink channel; and the resource location of the target resource set; the communication interface is further configured to send the target downlink channel through at least one target resource set.

[0025] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0026] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0027] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0028] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0029] In this embodiment, the terminal determines at least one of the following based on the first information: whether to enable the target transmission function, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmissions of the target downlink channel, and the resource location of the target resource set; the terminal receives the target downlink channel in at least one target resource set; wherein the target downlink channel repeatedly transmits or carries the same content on one or more target resource sets. Through the above-mentioned downlink channel repeated transmission mechanism, the problem of low received signal energy due to poor link budget can be effectively avoided, thereby improving the transmission reliability of connected and disconnected downlink channels. Attached Figure Description

[0030] Figure 1 is a schematic diagram of a communication system provided in an embodiment of this application;

[0031] Figure 2 is a flowchart of a downlink channel transmission method provided in an embodiment of this application;

[0032] Figure 3 is a flowchart of another downlink channel transmission method provided in an embodiment of this application;

[0033] Figures 4a to 4c are schematic diagrams of Embodiment 1;

[0034] Figures 5a to 5c are schematic diagrams of Embodiment 2;

[0035] Figure 6 is a schematic diagram of implementation method three.

[0036] Figures 7a and 7b are schematic diagrams of embodiments four and five;

[0037] Figure 8 is a schematic diagram of implementation method four;

[0038] Figures 9a and 9b are schematic diagrams of implementation method six;

[0039] Figure 10 is a schematic diagram of implementation method seven;

[0040] Figure 11 is a structural diagram of a downlink channel transmission device provided in an embodiment of this application;

[0041] Figure 12 is a structural diagram of another downlink channel transmission device provided in an embodiment of this application;

[0042] Figure 13 is a structural diagram of a communication device provided in an embodiment of this application;

[0043] Figure 14 is a structural diagram of a terminal provided in an embodiment of this application;

[0044] Figure 15 is a structural diagram of a network-side device provided in an embodiment of this application. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0046] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0047] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0048] It is worth noting that the technology described in this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems, such as NTN systems, vehicle-to-everything (V2X), vehicle-to-everything (V2X), machine-type communications (MTC), the Internet of Things (IoT), machine-to-machine (M2M), or future mobile communication systems. As a possible application scenario, NTN systems may include satellite systems. Based on satellite altitude, i.e., satellite orbital altitude, satellites can be classified into highly elliptical orbit (HEO) satellites, geosynchronous earth orbit (GEO) satellites, medium earth orbit (MEO) satellites, and low earth orbit (LEO) satellites. In addition, NTN systems may also include non-terrestrial network-side equipment (or airborne network-side equipment) such as high-altitude platform station (HAPS) communication systems. The non-terrestrial network-side equipment involved in this application is not limited to the examples mentioned above.

[0049] The terms "system" and "network" used in the embodiments of this application are often used interchangeably, and the described technologies can be used with respect to the systems and radio technologies mentioned above, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. thGeneration 6G communication system.

[0050] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12.

[0051] Among them, terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipborne equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), game console, personal computer (PC), ATM or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in the embodiments of this application.

[0052] Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, radio access network unit, or satellite. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc. The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0053] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support. The core network functions include: BSF (Block Network Function), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF). It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0054] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0055] Referring to Figure 2, an embodiment of this application provides a downlink channel transmission method, the specific steps of which include: step 21 and step 22.

[0056] Step 21: Based on the first information, the terminal determines at least one of the following: whether to enable the target transmission function, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmissions of the target downlink channel, and the resource location of the target resource set.

[0057] Optionally, the first information can be configured on the network side, that is, the terminal receives the first information from the network side, or the first information can be defined by the protocol.

[0058] Optionally, the target transmission function refers to determining multiple target resource sets based on indicated or agreed information (such as first information), and using at least one of the multiple target resource sets to transmit a target downlink channel.

[0059] Optionally, multiple target resource sets satisfy at least one of the following: the multiple target resource sets have the same quasi-co-location (QCL) or transmission configuration indicator-state (TCI-state); the multiple target resource sets carry the same content; the multiple target resource sets correspond to the same synchronization signal and PBCH block (SSB) index or channel state information reference signal (CSI-RS) or other reference signal.

[0060] Optionally, the target resource set may include multiple resource sets, at least one of the candidate transmission locations corresponding to a resource set, for example, the target resource set may include multiple search spaces, or the target resource set may include multiple monitoring occasions of a search space.

[0061] Optionally, the resource location of the target resource set includes at least one of the following: time-domain, frequency-domain, or code-domain resources occupied by the target resource set, candidate transmission location or monitoring location of the target resource set, such as the monitoring occasion of the physical channel or control-resource set (CORESET) or search space, such as the downlink control channel monitoring occasion.

[0062] Step 22: The terminal receives a target downlink channel in at least one target resource set;

[0063] Optionally, the terminal receiving the target downlink channel in at least one target resource set includes at least one of the following:

[0064] The terminal receives the target downlink channel in multiple target resource sets;

[0065] The terminal receives the target downlink channel at multiple candidate transmission locations or monitoring locations within a target resource set.

[0066] It should be noted that "multiple" in this article can also be described as "at least two".

[0067] In this embodiment, the terminal can receive repeated transmissions of a target downlink channel in at least one target resource set, wherein the target downlink channel repeatedly transmits or carries the same content on one or more target resource sets.

[0068] Optionally, the downlink channel includes, but is not limited to, at least one of the following: a downlink control channel, such as a Physical Downlink Control Channel (PDCCH), a Physical Sidelink Control Channel (PSCCH), or other channels carrying downlink control information (DCI), sidelink control information (SCI), or control information; and a data channel scheduled by the downlink control channel, such as a Physical Downlink Shared Channel (PDSCH), including a PDSCH carrying a System Information Block (SIB), Message 2 (Msg2), Message 4 (Msg4), Message B (MsgB), or paging.

[0069] Optionally, the target resource set is a resource unit of the downlink channel, or a transmission unit that constitutes the downlink channel. The description of the target resource set includes, but is not limited to, CORESET, SearchSpace, and candidate physical channels (such as candidate physical downlink control channel (PDCCH Candidate)).

[0070] Optionally, one or more target resource sets correspond to one transmission of the target downlink channel. For example, X target resource sets correspond to X repeated transmissions of the target downlink channel, or X target resource sets correspond to one transmission of the target downlink channel, where X is a positive integer.

[0071] In this embodiment, the definition of a resource set can also be a collection of physical resources containing multiple candidate transmission or monitoring locations. For example, a CORESET or SearchSpace can be a candidate transmission or monitoring location that appears periodically every X slots. In this case, the collection of physical resources at each candidate transmission or monitoring location can also be considered as a target resource set. Possible scenario 1: Different searchspaces serve as different target resource sets, and each searchspace contains multiple periodically occurring monitoring occasions. Monitoring occasions in different periods may not necessarily carry the same information or downlink channels, but monitoring occasions in different searchspaces within the same period may carry the same information or physical channels.

[0072] Possible scenario 2: Monitoring occasions with different periods in the time domain within the same Searchspace serve as different target resource sets, and multiple monitoring occasions with different periods carry the same information or downlink channels.

[0073] In one embodiment of this application, when transmitting a target downlink channel using multiple target resource sets of the plurality of target resource sets,

[0074] The multiple target resource sets are located in the same first time unit; or, the multiple target resource sets are located in different first time units.

[0075] In some embodiments, when the plurality of target resource sets are located in the same first time unit, at least one target resource set in the plurality of target resource sets and the candidate SSB location (or potential SSB location) occupy a second time unit that does not overlap, or at least one target resource set in the plurality of target resource sets and the candidate SSB location occupy a second time unit that at least partially overlaps.

[0076] In other embodiments, when the plurality of target resource sets are located in different first time units, either 1) or 2) is satisfied:

[0077] 1) If at least one target resource set in the plurality of target resource sets is associated with a first SSB index, and the first SSB index is an SSB index in which actual transmission has occurred, the other target resource sets in the plurality of target resource sets are associated with candidate SSB indices (or potential SSB indices) in non-first SSB indices, and the number of candidate SSB indices is at least one.

[0078] Optionally, the first information may further indicate at least one of the following: a list of non-first SSB indices; the number of non-first SSB indices; the offset of the non-first SSB indices; and using at least one listening opportunity or transmission opportunity associated with the non-first SSB indices as the target resource set of the first SSB indices.

[0079] Wherein, at least one of the list of non-first SSB indexes, the number of non-first SSB indexes, and the offset of the non-first SSB indexes is used to determine the target resource set associated with the first SSB index.

[0080] 2) The plurality of target resource sets include at least two target resource sets, the interval between the at least two target resource sets is X third time units, the X third time units include the time interval occupied by one SSB burst, or the time interval occupied by half a system frame, or the time interval occupied by one system frame, where X is a positive integer.

[0081] Optionally, the first time unit includes, but is not limited to, a time slot; the second time unit includes, but is not limited to, a symbol; and the third time unit includes, but is not limited to, a time slot, a millisecond (ms), or a system frame.

[0082] Optionally, at least two target resource sets must be within one system frame, meaning that at least two target resource sets must have the same System Frame Number (SFN).

[0083] For example, the first target resource set and the second target resource set in at least two target resource sets are located on two time slots with an interval of X third time units, where the third time unit is a time slot or millisecond, and the X third time units include the time interval occupied by one SSB burst, such as half a frame or 5 milliseconds; or, the third time unit is a time slot, millisecond or system frame, and the X third time units include the time interval occupied by one system frame, such as 1 frame or 10 milliseconds.

[0084] In one embodiment of this application, when the plurality of target resource sets include: a first target resource set and a second target resource set,

[0085] The starting position of the first target resource set within the first time unit is a specific time position, and the time position is at least one of absolute time, system frame number, time slot index, and symbol index.

[0086] or,

[0087] The first target resource set and the second target resource set are separated by one or more time units, and the time unit is at least one of time slot, symbol, system frame, and millisecond.

[0088] Optionally, the specific time position S0 and the number of time units S1 between the first target resource set and the second target resource set can be defined according to the repeated transmission of each transmission of the target downlink channel (or according to each target resource set). For example, S0 of the i-th target resource set is different from S0 of the (i+1)-th target resource set.

[0089] In one embodiment of this application, the first information includes a first parameter, which is used to determine at least one of the following: the resource location of the target resource set, and the candidate transmission location or listening location of the target resource set;

[0090] The first parameter is obtained through at least one of the following methods: protocol definition, network-side indication.

[0091] The network-side indication includes at least one of the following:

[0092] 1) The network side directly indicates the first parameter;

[0093] 2) The network side indicates at least one set of first parameters from a plurality of sets of first parameters, wherein the plurality of sets of first parameters are defined by the protocol.

[0094] Optionally, the protocol defines resource location-related parameters for the i-th target resource set. Further, the protocol defines related parameters for the i-th target resource set associated with the j-th SSB index, where i and j are positive integers.

[0095] Optionally, network-side indications include, but are not limited to, DCI or Media Access Control (MAC) Control Element (CE) or Radio Resource Control (RRC) indications.

[0096] In one embodiment of this application, the first parameter is associated with at least one of the following:

[0097] 1) The target downlink channel;

[0098] 2) At least one repeated transmission of the target downlink channel;

[0099] 3) At least one of the plurality of target resource sets.

[0100] In this embodiment, the granularity of the network side indicating the first parameter can be the target downlink channel, at least one repeated transmission of multiple repeated transmissions of the target downlink channel, or at least one target resource set of multiple target resource sets.

[0101] In one embodiment of this application, the first parameter includes at least one of the following:

[0102] 1) At least one repeated transmission of the target downlink channel, or, at least one target resource set of multiple target resource sets, the starting symbol index within the time slot;

[0103] 2) At least two repeated transmissions in a target downlink channel, or the interval between at least two target resource sets in a plurality of target resource sets.

[0104] In one embodiment of this application, where the first information indicates multiple target resource sets for repeated transmission on the same downlink channel through association (such as a linking ID), the first information further includes at least one of the following:

[0105] 1) The period and first offset of each target resource set in the plurality of target resource sets, wherein at least some of the target resource sets in the plurality of target resource sets have the same period, or at least some of the target resource sets in the plurality of target resource sets have different first offsets;

[0106] The period of the target resource set is the time interval between the occurrences of the target resource set periodically.

[0107] 2) The period of at least one target resource set in the plurality of target resource sets, and the second offset of each target resource set in the plurality of target resource sets;

[0108] The period of at least one target resource set in the plurality of target resource sets, the third offset of at least one target resource set in the plurality of target resource sets, and the fourth offset of other target resource sets in the plurality of target resource sets;

[0109] Wherein, the first offset, the second offset, or the third offset is used to indicate the position of the target resource set within the period, and the fourth offset is used to indicate the offset of the other target resource set relative to the third offset of the at least one target resource set.

[0110] It should be noted that the "period" mentioned above refers to the period in which the target resource set appears in the time domain, and the first offset, second offset, third offset and fourth offset mentioned above refer to the position in which the target resource set appears in the time domain. Among them, the transmission timing of the same target resource set in different periods can carry independent information.

[0111] In one embodiment of this application, the plurality of target resource sets are associated with the SSB index through a first mapping method, wherein the first mapping method includes at least one of the following: continuous mapping and sequential mapping;

[0112] The continuous mapping refers to establishing associations between the SSB indexes and the multiple target resource sets according to the order of the SSB indexes.

[0113] The sequential mapping refers to establishing associations between all SSB indices and N target resource sets in the plurality of target resource sets, then establishing associations between all SSB indices and M target resource sets in the plurality of target resource sets, repeating this process until all target resource sets in the plurality of target resource sets are mapped, where M and N are positive integers, and M and N may be equal or unequal.

[0114] In one embodiment of this application, at least a portion of the bits of the first information are carried by at least one of the following:

[0115] 1) At least some bits of the Master Information Block (MIB);

[0116] 2) At least a portion of the bits of the resource block offset (RB offset) of the first CORESET, which is used to schedule the transmission of the PDCCH of SIB1;

[0117] 3) A portion of the entries in the table indicated by the first CORESET;

[0118] in,

[0119] At least a portion of the bits in the MIB include at least one of the following:

[0120] At least a portion of the bits of the common subcarrier spacing (subCarrierSpacingCommon) of the MIB;

[0121] At least a portion of the bits of the synchronization signal block subcarrier offset (ssb-SubcarrierOffset) of the MIB;

[0122] At least a portion of the bits in the half-frame bit of the MIB;

[0123] Specific fields defined in the MIB.

[0124] In one embodiment of this application, the first information is associated with some parameters or configurations of at least one of MIB, SIB, and SSB.

[0125] For example, the first information is associated with specific parameters in the MIB or SIB. For instance, when certain parameters take the value X, the minimum information representing the first information is X', such as X' being used to indicate the activation of the target transmission function.

[0126] For example, if the first information is associated with a specific parameter or bit of the Physical Broadcast Channel (PBCH) in the SSB, such as a demodulation reference signal (DMRS) sequence or scrambling bit or PBCH specific information value X, then the minimum information characterizing the first information is X', for example, X' is used to indicate that the target transmission function is enabled.

[0127] In one embodiment of this application, the first information further includes first time information, which is used to determine at least one of the following: the number of target resource sets, the number of repeated transmissions of the target downlink channel, the resource location of the target resource set, and the candidate transmission location or monitoring location of the target resource set.

[0128] In one embodiment of this application, the first time information includes at least one of the following: the length of the first window, the period of the first window, and the offset of the first window;

[0129] Wherein, the first window satisfies at least one of the following:

[0130] 1) The first window is either periodic or aperiodic;

[0131] If the first window is periodic, then the first time information includes at least the period of the first window; if the first window is non-periodic, the first window can be triggered by a specific signal, channel or event, such as message 1 (Msg1) or message A (MsgA).

[0132] 2) The first window is the transmission time interval (TTI) of the target downlink channel;

[0133] The first window is the TTI of the target downlink channel, which refers to the time interval during which the information of the target downlink channel remains unchanged. Multiple redundant versions (RVs) or transport blocks (TBs) of the target downlink channel transmitted within the TTI, or the target resource set of the target downlink channel carrying the same information.

[0134] 3) The first window is a time window used for transmitting a specific channel;

[0135] Optionally, the time window includes, but is not limited to, at least one of the following: System Information Window (SI Window), Paging Frame / Occasion, Random Access Response Window (RAR window), etc.

[0136] 4) The first window is the time window for beam activation or beam start-up, or the time window for cell discontinuous transmission (Cell DTX) or cell discontinuous reception on (Cell DRX on), or the time window for transmitting SSB.

[0137] Optionally, within the time window for beam activation or beam initiation, the period of the first window is the beam hopping period; within the time window for initiation of discontinuous cell transmission or discontinuous cell reception, the period of the first window is the period of Cell DTX or DRX; if the target cell or beam is within the service time, the period of the first window can be the SSB period.

[0138] In this embodiment, the Search space within the first window consists of multiple monitoring occasions at different periods, and these multiple monitoring occasions within the first window are sets of target resources carrying the same downlink channel.

[0139] In one embodiment of this application, when multiple target resource sets of the transmission target downlink channel are located in the same first time unit, the method further includes:

[0140] If at least one target resource set and a first channel or signal-occupied resource (e.g., RE) at least partially overlap, the terminal performs a first operation, the first operation including at least one of the following:

[0141] 1) Ignore or skip the first channel or signal;

[0142] 2) Ignore or skip overlapping target resource sets;

[0143] 3) Upon receiving the first channel or signal, perform puncturing or rate matching (RM) on the resources that overlap with the target resource set;

[0144] 4) When the target resource set receives the target downlink channel, punch holes or rate match the resources that overlap with the resources occupied by the first channel or signal.

[0145] Optionally, the first channel or signal may be an SSB, a potential (possible) SSB, or other uplink or downlink signals or channels.

[0146] In one embodiment of this application, the first information indicates at least one of the following: enabling or disabling the target transmission function of a specific downlink channel, and configuring or reconfiguring a plurality of target resource sets that enable the target transmission function of the specific downlink channel.

[0147] It is understandable that the above-mentioned enabling can also be replaced by activating or enabling, and the above-mentioned disabling can also be replaced by deactivating or disabling.

[0148] In one embodiment of this application, the first information indicates at least one of the following via a first indication method: enabling or disabling the target transmission function of a specific downlink channel, configuring or reconfiguring at least one target resource set that enables the target transmission function of the specific downlink channel;

[0149] The first indication method includes at least one of the following:

[0150] 1) RRC, MIB, SIB, or MAC CE indication;

[0151] 2) Specific DCI format instructions;

[0152] 3) DCI indication carried by a specific target resource set;

[0153] 4) Neighbor cell indication;

[0154] 5) Inter-RAT indication.

[0155] Optionally, the first approach also includes agreement.

[0156] In one embodiment of this application, when the first information explicitly or implicitly indicates that the target transmission function is enabled, the terminal receives a target downlink channel in at least one target resource set, including:

[0157] The terminal determines multiple target resource sets according to the instructions or protocol agreements of the first information;

[0158] The terminal receives a target downlink channel in at least one of the plurality of target resource sets;

[0159] or,

[0160] When the first information explicitly or implicitly indicates that the target transmission function is disabled, the terminal receives a target downlink channel in at least one target resource set, including:

[0161] The terminal determines a target resource set based on the instructions or protocol agreed upon in the first information;

[0162] The terminal receives a target downlink channel in a target resource set.

[0163] In this embodiment, if the first information indicates that the configured Searchspace is a Searchspace with repeated transmission enabled, it is equivalent to implicitly indicating that the target transmission function is enabled. For example, SIB1 indicates that a specific Searchspace is one of multiple Searchspace zeros with the target transmission function enabled, or one Searchspace zero is configured with multiple PDCCH Candidates in multiple Monitor occasions carrying the same target downlink channel.

[0164] In one embodiment of this application, the first information explicitly or implicitly indicates that the target transmission function is enabled, including at least one of the following:

[0165] 1) The target resource set indicated by the first information is a resource set for which the target transmission function has been enabled;

[0166] 2) The first information indicates that multiple target resource sets are associated with the same target downlink channel.

[0167] In one embodiment of this application, the first information is carried in at least one of the following ways:

[0168] 1) The target downlink control channel associated with the scheduling target downlink channel;

[0169] 2) The target downlink control channel for scheduling the target downlink channel;

[0170] 3) RRC or MIB or SIB or MAC CE.

[0171] In one embodiment of this application, when the first information is carried by a target downlink control channel that schedules the target downlink channel, the method further includes:

[0172] The terminal determines the resource location of the target resource set of the target downlink channel based on the target downlink control channel indication of the target downlink channel, or by pre-configuration or protocol definition;

[0173] Wherein, the target downlink control channel indication of the scheduling target downlink channel is used to indicate at least one of the following:

[0174] The interval between multiple target resource sets in the target downlink channel;

[0175] The interval between the target downlink channel and the target downlink control channel.

[0176] Optionally, the interval between multiple target resource sets of the target downlink channel or the interval between the target downlink channel and the target downlink control channel can also be pre-configured or protocol-defined.

[0177] In one embodiment of this application, when the downlink data channel scheduled by the control channel carried by the target resource set conflicts with the SSB transmission, the number of time slots or repetitions of the downlink data channel is counted according to the available time slots or available repetitions, and the available time slots or available repetitions are determined by at least one of the SSB candidate position, uplink frame configuration, and downlink frame configuration.

[0178] Optionally, if a candidate SSB exists in a time slot, then that time slot is not used for the downlink data channel transmission, i.e., it is an unavailable time slot or an unavailable repetition, and is not counted in the available time slots or available repetitions of the downlink data channel.

[0179] Optionally, if the uplink time slot is not used for downlink data channel transmission according to the uplink and downlink frame configuration (such as tdd-UL-DL-Configuration), i.e., it is an unavailable time slot or unavailable repetition, then it is not counted in the available time slot or available repetition of the downlink data channel.

[0180] In one embodiment of this application, the target resource set carries a downlink data channel scheduled by the control channel, and the DCI format of the control channel is a first DCI format, wherein the first DCI format satisfies at least one of the following:

[0181] 1) The first DCI format is scrambled using a specific Radio Network Temporary Identifier (RNTI);

[0182] Optionally, a specific RNTI can refer to a new name for the RNTI, or an existing RNTI that has been configured or defined with new values ​​for this scenario. For example, the System Information Radio Network Temporary Identifier (SI-RNTI) may have one or more new values ​​configured or defined to schedule repeated transmissions of SIB1 PDSCH.

[0183] 2) The first DCI format includes at least one of the following: frequency domain resource assignment, time domain resource assignment, modulation and coding scheme (MCS) domain, and system message indication domain;

[0184] Optionally, the frequency domain resource allocation field is referenced to the bandwidth of CORESET#0, or fixed to a bandwidth of 5MHz.

[0185] Optionally, the first DCI format further includes at least one of a functional bit field, a reserved bit field, or a padding bit field, wherein the functional bit field depends on the PDSCH type of the DCI scheduler of the first DCI format.

[0186] 3) The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, short message indication domain, and TB scaling indication;

[0187] 4) The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, and transport block (TB) scaling indication;

[0188] 5) The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and system message indication field;

[0189] 6) The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, short message indication field, and TB scaling indication field;

[0190] 7) The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and TB scaling indicator;

[0191] Optionally, the difference between the fields included in the first DCI format and those included in the traditional DCI format is that the first DCI format does not include any fields other than at least one of the above-mentioned frequency domain resource allocation field, time domain resource allocation field, MCS field, and system message indication field.

[0192] 8) The first DCI format is used for scheduling SIB PDSCH, or paging PDSCH, or message 2 or message BPDSCH.

[0193] 9) The number of bits for the payload and cyclic redundancy check (CRC) in the first DCI format is no greater than 24 bits, 32 bits, or 48 bits.

[0194] 10) The payload bit count of the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

[0195] 11) The number of CRC bits in the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

[0196] Optionally, if the functional bits in the first DCI format include TB scaling, the first DCI format schedules Msg2 or MsgB PDSCH; if the functional bits in the first DCI format include Short Messages Indicator, the first DCI format schedules paging PDSCH.

[0197] In this embodiment, by designing a dedicated DCI format, the number of bits that DCI needs to carry is reduced, the link budget requirement for successful DCI demodulation is lowered, and the DCI demodulation success rate is improved.

[0198] In one embodiment of this application, the first information further includes at least one of the following: the number of times a resource set is repeated, and the interval between adjacent resource sets.

[0199] In the embodiments of this application, the downlink channel retransmission mechanism described above can effectively avoid the problem of low received signal energy due to poor link budget, thereby improving the transmission reliability of connected and disconnected downlink channels.

[0200] Referring to Figure 3, an embodiment of this application provides a downlink channel transmission method, the specific steps of which include: step 31 and step 32.

[0201] Step 31: The network-side device sends first information, which is used to determine at least one of the following: whether the target transmission function is enabled; the number of target resource sets; the number of candidate transmission locations or monitoring locations of the target resource sets; the number of repeated transmissions of the target downlink channel; and the resource location of the target resource set.

[0202] Step 32: The network-side device transmits the target downlink channel through at least one target resource set.

[0203] In one embodiment of this application, when a target downlink channel is transmitted using multiple target resource sets of the plurality of target resource sets, the plurality of target resource sets are located in the same first time unit; or, the plurality of target resource sets are located in different first time units.

[0204] Wherein, when the plurality of target resource sets are located in the same first time unit, at least one target resource set in the plurality of target resource sets and the candidate synchronization signal block (SSB) position occupying the second time unit do not overlap, or at least one target resource set in the plurality of target resource sets and the candidate SSB position occupying the second time unit have at least partial overlap;

[0205] Alternatively, if the multiple target resource sets are located in different first time units...

[0206] If at least one target resource set in the plurality of target resource sets is associated with a first SSB index, and the first SSB index is an SSB index in which actual transmission has occurred, the other target resource sets in the plurality of target resource sets are associated with candidate SSB indices that are not in the first SSB index, and the number of candidate SSB indices is at least one; or, the plurality of target resource sets include at least two target resource sets, and the interval between the at least two target resource sets is X third time units, wherein the X third time units include the time interval occupied by one SSB burst, or the time interval occupied by half a system frame, or the time interval occupied by one system frame, where X is a positive integer.

[0207] In one embodiment of this application, when the plurality of target resource sets include: a first target resource set and a second target resource set,

[0208] The starting position of the first target resource set within the first time unit is a specific time position, and the time position is at least one of absolute time, system frame number, time slot index, and symbol index.

[0209] or,

[0210] The first target resource set and the second target resource set are separated by one or more time units, and the time unit is at least one of time slot, symbol, system frame, and millisecond.

[0211] In one embodiment of this application, the first information includes a first parameter, which is used to determine at least one of the following: the resource location of the target resource set, and the candidate transmission location or listening location of the target resource set;

[0212] The first parameter is associated with at least one of the following:

[0213] The target downlink channel;

[0214] At least one repeated transmission of the target downlink channel;

[0215] At least one of the plurality of target resource sets.

[0216] In one embodiment of this application, where the first information indicates that multiple target resource sets are used for repeated transmission on the same downlink channel through association, the first information further includes at least one of the following:

[0217] The period and first offset of each target resource set in the plurality of target resource sets, wherein at least some of the target resource sets in the plurality of target resource sets have the same period, or at least some of the target resource sets in the plurality of target resource sets have different first offsets;

[0218] The period of at least one target resource set in the plurality of target resource sets, and the second offset of each target resource set in the plurality of target resource sets;

[0219] The period of at least one target resource set in the plurality of target resource sets, the third offset of at least one target resource set in the plurality of target resource sets, and the fourth offset of other target resource sets in the plurality of target resource sets;

[0220] Wherein, the first offset, the second offset, or the third offset is used to indicate the position of the target resource set within the period, and the fourth offset is used to indicate the offset of the other target resource set relative to the third offset of the at least one target resource set.

[0221] In one embodiment of this application, at least a portion of the bits of the first information are carried by at least one of the following:

[0222] At least some bits of the MIB;

[0223] At least a portion of the bits of the resource block offset of the first CORESET, the first CORESET being used to schedule the transmission of the PDCCH of system information block SIB1;

[0224] A portion of the entries in the table indicated by the first CORESET;

[0225] in,

[0226] At least a portion of the bits in the MIB include at least one of the following:

[0227] At least a portion of the bits of the subCarrierSpacingCommon of the MIB;

[0228] At least a portion of the bits of the MIB's ssb-SubcarrierOffset;

[0229] At least a portion of the bits of the half-frame bit in the MIB;

[0230] Specific fields defined in the MIB.

[0231] In one embodiment of this application, the first information indicates at least one of the following: enabling or disabling the target transmission function of a specific downlink channel, configuring or reconfiguring at least one target resource set of the target transmission function of the specific downlink channel;

[0232] Wherein, the first information indicates at least one of the following through a first indication method: enabling or disabling the target transmission function of a specific downlink channel, configuring or reconfiguring at least one target resource set of the target transmission function of the specific downlink channel;

[0233] The first indication method includes at least one of the following:

[0234] Radio Resource Control (RRC), MIB, SIB, or Media Access Control (MAC) control element CE indication;

[0235] Specific downlink control information DCI format indication;

[0236] DCI indication carried by a specific target resource set;

[0237] Instructions for neighboring communities;

[0238] Indicator of different systems.

[0239] In one embodiment of this application, the target resource set carries a downlink data channel scheduled by the control channel, and the DCI format of the control channel is a first DCI format, wherein the first DCI format satisfies at least one of the following:

[0240] The first DCI format uses a specific radio network temporary identifier (RNTI) for scrambling;

[0241] The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, and system message indication domain;

[0242] The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, short message indication domain, and TB scaling indication;

[0243] The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, and TB scaling indicator;

[0244] The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and system message indication field;

[0245] The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and short message indication field;

[0246] The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and TB scaling indicator;

[0247] The first DCI format is used for scheduling SIB PDSCH, or paging PDSCH, or message 2 or message BPDSCH;

[0248] The number of bits for the payload and cyclic redundancy check (CRC) in the first DCI format is no more than 24 bits, 32 bits, or 48 bits.

[0249] The payload bit count of the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

[0250] The number of CRC bits in the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

[0251] In the embodiments of this application, the downlink channel retransmission mechanism described above can effectively avoid the problem of low received signal energy due to poor link budget, thereby improving the transmission reliability of connected and disconnected downlink channels.

[0252] The embodiments of this application are described below with reference to Embodiments 1 to 3.

[0253] Implementation Method 1:

[0254] This implementation addresses intra-slot repetition of SS#0 (short for search space zero). SS#0 refers to the resource set of downlink control channels for which the UE acquires SIB1 PDSCH after obtaining only the MIB (e.g., first information), and can also be called the Type 0 common search space (CSS).

[0255] In some embodiments, the target resource set can be determined in the following ways:

[0256] Option 1 (Alt1): The offset of the starting symbol of the target resource set is defined by the protocol, or the offset of the starting symbol of the target resource set is indicated by MIB, SIB, DCI, MAC CE, or RRC. Optionally, the UE determines the target resource set based on the first table and the first mapping relationship, as well as the offset, wherein the first table is a table for determining the time-domain resource location (listening timing) of SS#0 (without enabling target transmission function), and the first mapping relationship is the association between the SSB index and the target resource set.

[0257] It is understood that the first information can be used to indicate at least one of the following: the resource set of the downlink control channel of SIB1 PDSCH, the offset of the starting symbol of the target resource set, and the association between the SSB index and the target resource set. This first information can be indicated by the network side (e.g., MIB, SIB, DCI, MAC CE, or RRC) or defined by the protocol.

[0258] Optionally, the first form includes the existing SS#0 form, see Table 1.

[0259] Table 1: PDCCH Listening Timing Parameters for Type 0-PDCCH CSS Set – Synchronization Signal Block and CORESET Multiplexing Module

[0260] Equation 1 and Frequency Range (FR) 1.

[0261] Where M represents the mapping method, This indicates the number of symbols contained in the CORESET.

[0262] For the case of two target resource sets, the offset of the starting symbol of one target resource set can be indicated as O1 by the protocol definition, or by MIB, SIB, DCI, MAC CE, or RRC, where O1 is a non-zero integer, for example, O1 can be negative. After enabling the target transmission function, the UE determines the first target resource set according to the existing SS#0 table where the target transmission function is not enabled, such as index 0 in Table 1, then the starting symbol index of the first target resource set is 0; then, the starting symbol index of the second target resource set is determined as the starting symbol index of the first target resource set + O1, that is, the starting symbol index of the second target resource set is O1.

[0263] In the case of three target resource sets, an additional offset can be indicated by the protocol definition, or by MIB, SIB, DCI, MAC CE, or RRC, such as offset O2, or by using an integer multiple of O1 as O2 (e.g., O2 = 2 * O1). The UE can determine the starting symbol index of the third target resource set as the starting symbol index of the first or second target resource set + O2 based on O2, where O2 is a non-zero integer.

[0264] For cases with more than three target resource sets, the above examples can be used as a basis for analogy, and will not be elaborated further.

[0265] Option 2 (Alt2): The protocol defines a second table and a second mapping relationship. The second table is used to determine the location of additional time-domain resources (listening timing) when the target transmission function is enabled (SS#0). The second mapping relationship is the association between the SSB index and the target resource set. The UE determines the target resource set based on the second table and the second mapping relationship.

[0266] It is understood that the first information can also be used to indicate at least one of the following: the association between other target resource sets (including the second target resource set) besides the first target resource set and the SSB index.

[0267] Optionally, the second table includes defining a new SS#0 table, see Table 2.

[0268] Table 2: PDCCH listening timing parameters for Type 0-PDCCH CSS set repeating – synchronization signal block and CORESET multiplexing mode 1 and FR1.

[0269] Optionally, the parameters in Table 2, such as O1 and O2, can be defined by the protocol or configured via MIB, SIB, DCI, MAC CE, or RRC (e.g., first information).

[0270] Optionally, the second table (e.g., Table 2) is used to determine other target resource sets (including the second target resource set) besides the first target resource set; wherein, the first target resource set is the target resource set determined based on the first table and the first mapping relationship. It is understood that the first table is used to determine the time-domain resource location (listening timing) of the initial transmission, and the second table is used to determine the time-domain resource location (listening timing) of the repeated transmission.

[0271] Optionally, the second mapping relationship can be defined by the protocol or indicated by the first information. The second mapping relationship can be used to determine the correspondence between the SSB index and the temporal resource location (listening timing) of the associated second target resource set, for example:

[0272] UE in SFN C And slot n0 listens to the downlink control channel, where,

[0273] if SFN c modP = 0;

[0274] if SFN c mod P = 1.

[0275] Where M can be M as shown in Table 1 or Table 2 above, This represents the number of time slots within a frame, where μ is the number of subcarrier spacing (SCS) parameters. μ *15kHz is SCS, P is the first cycle, such as SSB or cell discontinuous transmission (DTX) or discontinuous reception (DRX) or beam hopping cycle (in units of 10ms or SFN).

[0276] For alternative implementation of Option 2 (Alt2), the first table and the second table are not distinguished. The first table is directly redefined. Based on the original start symbol index, more start symbol indices are added so that one candidate transmission or listening position corresponds to multiple target resource sets, and the multiple target resource sets transmit the same target downlink channel.

[0277] Table 3: PDCCH Listening Timing Parameters for Type 0-PDCCH CSS Set Repetition – Synchronization Signal Block and CORESET Multiplexing Mode 1 and FR1.

[0278] Optionally, the parameters in Table 2, such as O1 and O2, can be protocol defined, or can be configured via MIB, SIB, DCI, MAC CE, or RRC (e.g., first information).

[0279] Optionally, the first table (Table 3 above) is used to determine all target resource sets. According to the first table above, the i-th candidate listening opportunity or transmission opportunity will correspond to multiple target resource sets (with different starting symbols) in the time domain. However, for ease of description, the multiple target resource sets corresponding to the i-th candidate listening opportunity or transmission opportunity can also be referred to as the i-th candidate listening opportunity or transmission opportunity.

[0280] Optionally, the second mapping relationship can be defined by the protocol or indicated by the first information. The second mapping relationship can be used to determine the correspondence between SSB index i and the listening timing of the associated target resource set, for example...

[0281] UE in SFN C And slot n0 listens to the downlink control channel, where,

[0282] if SFN c modP = 0;

[0283] if SFN c mod P = 1.

[0284] Where P is the first cycle, such as SSB or Cell DTX or DRX or Beam hopping cycle (in units of 10ms or SFN).

[0285] For the two optional methods mentioned above (option 1 and option 2), the first target resource set and other target resource sets (such as the second target resource set) can belong to the same Search space or CORESET, which expands the listening time or transmission opportunities of the Search space or CORESET. Alternatively, the first target resource set and other target resource sets (such as the second target resource set) can not belong to the same Search space or CORESET, which defines a new Search space or CORESET, but the first target resource set and other target resource sets are related.

[0286] As a first seed embodiment of the previous embodiment, the second target resource set and the candidate SSB location occupancy symbols do not overlap.

[0287] For example, taking CORESET as a set of two symbols, the second target resource set occupies {6,7} and {12,13}. Taking the index of the starting symbol of the first target resource set in the above optional method 1 as 0, the index of the starting symbol of the second target resource set is O1 = 6 or 12.

[0288] Taking Figure 4a as an example, assume that region 4a1 represents the location of the first target resource set, and region 4a2 represents the location of the candidate second target resource set. In this sub-implementation, the location of the candidate second target resource set and the location of the candidate SSB do not overlap.

[0289] As a second seed embodiment of the previous embodiment, the second target resource set and the candidate SSB location occupancy symbols have at least partial overlap.

[0290] For example, taking CORESET as a symbol of 2, the second target resource set occupies {2,3},{4,5} or {8,9},{10,11}.

[0291] Taking Figures 4b and 4c as examples, region 4b1 represents the location of the first target resource set, and region 4b2 represents the location of the candidate second target resource set. In the second seed embodiment, the locations of the candidate second target resource sets and the candidate SSB locations overlap. For example, the locations of the candidate second target resource sets in Figure 4b (symbols 2-5 in Figure 4b) and the locations of the candidate SSBs in Figure 4c (symbols 2-5 in Figure 4c) overlap, as do the locations of the candidate SSBs in Figure 4b (symbols 8-11 in Figure 4b) and the locations of the candidate second target resource sets in Figure 4c (symbols 8-11 in Figure 4c).

[0292] Implementation Method Two:

[0293] This implementation method mainly targets SS#0 using the same Search space to perform inter-slot repetition at different monitoring occasions.

[0294] In this embodiment, only one resource set is defined, such as a search space. This resource set has periodic listening opportunities or transmission opportunities, which can be defined as a target resource set.

[0295] In some embodiments, the UE determines the target resource set based on the period and length of the first window and the period of the resource set. The target resource set includes the listening time or transmission opportunity of the resource set.

[0296] In this embodiment, the first information may indicate the period of the first window, the length of the first window, and the period of the resource set.

[0297] Optionally, the length can include a length parameter and an offset, and the period can include a period parameter and an offset.

[0298] Optionally, at least one of the following: the period or length of the first window, the period of the resource set, the number of target resource sets, and the number of repeated transmissions of the target downlink channel can be defined by the protocol, or can be indicated by MIB, SIB, RRC, MAC CE, or DCI (e.g., first information).

[0299] Optionally, the UE determines the temporal location and range of the first window, and determines the listening time or transmission opportunity (i.e., the target resource set) when the resource set appears periodically.

[0300] Optionally, the UE determines the periodic listening or transmission opportunities of the resource set within the first window range, and determines the target resource set according to at least one of the following methods based on the number of the target resource set, such as X (X is a positive integer):

[0301] 1) Starting from the first target resource set (or the first listening opportunity or transmission opportunity) in the first window, X consecutive listening opportunities or transmission opportunities are taken as the target resource set;

[0302] 2) Starting from the last target resource set (or the last listening opportunity or transmission opportunity) in the first window, X consecutive listening opportunities or transmission opportunities are taken as the target resource set;

[0303] 3) Starting from the first target resource set (or the first listening opportunity or transmission opportunity) in the first window, select 1 listening opportunity or transmission opportunity every Y listening opportunities or transmission opportunities, and select a total of X listening opportunities or transmission opportunities as the target resource set;

[0304] Optionally, Y can be defined by the protocol, or indicated by MIB, SIB, RRC, MAC CE, or DCI (such as the first message).

[0305] Optionally, Y can be determined by a formula. For example, if there are T (T is a positive integer) listening opportunities or transmission opportunities in the first window, then choose Y = floor(T / X), where floor() means rounding down.

[0306] 4) Starting from the last target resource set (or the last listening opportunity or transmission opportunity) in the first window, select 1 listening opportunity or transmission opportunity every Y listening opportunities or transmission opportunities, and select a total of X listening opportunities or transmission opportunities as the target resource set.

[0307] Optionally, Y can be a protocol definition, or indicated by MIB, SIB, RRC, MAC CE, or DCI (such as first information).

[0308] Optionally, Y can be determined by a formula. For example, if there are T listening opportunities or transmission opportunities in the first window, then choose Y = floor(T / X), where floor() means rounding down.

[0309] Referring to Figure 5a, the first window is the SI window, with a window length of 40ms, a period of 120ms, and an offset of 10ms; the target resource set has a period of 10ms and an offset of 10ms. Therefore, it can be determined that the SI window includes four target resource sets, or listening opportunities or transmission opportunities (MOs).

[0310] In some embodiments, the UE determines the target resource set based on the period of the resource set and at least one of the following:

[0311] 1) Slot index, such as a specific slot index or a set of indexes, or an index that is odd or even;

[0312] 2) Frame index, such as a specific frame index or a set of indices, or an index that is odd or even;

[0313] 3) The fixed interval, minimum interval, or maximum interval between the associated SSB and the slot, frame, or symbol. The unit of the interval can be milliseconds (ms), slots, frames, symbols, etc.

[0314] Optionally, the first information may include 1) to 3) above, or 1) to 3) above may be a protocol definition or MIB or SIB or RRC or MAC CE or DCI indication.

[0315] In some embodiments, the UE determines the target resource set based on the period of the first window, the length of the first window, the period of the resource set, and at least one of the information in 1) to 3) above.

[0316] Optionally, the first information may include the period of the first window, the length of the first window, the period of the resource set, and the above 1) to 3).

[0317] As a sub-implementation of the above embodiments, for a determined listening opportunity or transmission opportunity that meets the requirements, the terminal determines the target resource set according to the quantity of the target resource set, such as X, in at least one of the following ways:

[0318] 1) Starting from the first target resource set (or, the first listening opportunity or transmission opportunity), the next X consecutive listening opportunities or transmission opportunities are considered as the target resource set;

[0319] 2) Starting from the last target resource set (or, the last listening opportunity or transmission opportunity), count X consecutive listening opportunities or transmission opportunities backwards as the target resource set.

[0320] 3) Starting from the first target resource set (or the first listening opportunity or transmission opportunity), select one listening opportunity or transmission opportunity every Y listening opportunities or transmission opportunities thereafter, for a total of X listening opportunities or transmission opportunities as the target resource set.

[0321] Optionally, Y can be indicated by a protocol definition or MIB or SIB or RRC or MAC CE or DCI (such as first information).

[0322] Optionally, Y can also be determined by a formula. For example, if there are T listening opportunities or transmission opportunities, then choose Y = floor(T / X), where floor() means rounding down.

[0323] 4) Starting from the last target resource set (or the last listening opportunity or transmission opportunity), select one listening opportunity or transmission opportunity every Y listening opportunities or transmission opportunities, for a total of X listening opportunities or transmission opportunities as the target resource set.

[0324] Optionally, Y can be indicated by a protocol definition or MIB or SIB or RRC or MAC CE or DCI (such as first information).

[0325] Optionally, Y can also be determined by a formula. For example, if there are T listening opportunities or transmission opportunities, then choose Y = floor(T / X), where floor() means rounding down.

[0326] Where X, Y, and T are positive integers.

[0327] Optionally, at least one of the following: the period of the resource set, the number of target resource sets, and the number of repeated transmissions of the target downlink channel, is a protocol-defined or MIB, SIB, RRC, MAC CE, or DCI (e.g., first information) indication.

[0328] Optionally, the UE determines periodic listening or transmission opportunities that meet certain requirements, including at least one of the following:

[0329] 1) The slot index where the listening opportunity or transmission opportunity is located is a specific slot index or a set of indexes, or the index is odd or even;

[0330] 2) The frame index where the listening time or transmission opportunity is located is a specific frame index or a set of indices, or the index is odd or even;

[0331] 3) The interval between the slot, frame, or symbol where the listening opportunity or transmission opportunity is located and the slot, frame, or symbol where the associated SSB is located meets the requirements, such as a fixed interval, minimum interval, or maximum interval.

[0332] In some embodiments, the UE determines the target resource set based on the number of times the resource set is repeated and the interval between adjacent resource sets.

[0333] Optionally, at least one of the following may be used: a protocol definition or RRC or MAC CE or DCI (e.g., first information) indicating the number of repetitions of a resource set, or the interval between adjacent resource sets.

[0334] Optionally, the UE determines the listening timing or transmission opportunity of the resource set based on the number of repetitions of the resource set and the interval between adjacent resource sets.

[0335] Example 1 (Case 1): The interval is the interval between two adjacent listening opportunities or transmission opportunities associated with the same SSB index. The unit of the interval can be slot, frame, ms, or symbol, etc., see Figure 5b.

[0336] 1) The timing of the first appearance of a resource set or the opportunity for transmission (i.e., the first target resource set) is associated with the SSB, such as the slot where the SSB is located.

[0337] 2) Based on the first occurrence of the listening or transmission opportunity and the interval, determine the second occurrence of the resource set (i.e., the second target resource set).

[0338] 3) Continue in this manner until the total number of listening opportunities or transmission opportunities reaches the total number of repetitions.

[0339] Example 2 (Case 2): The interval is the interval between the listening opportunity or transmission opportunity associated with the last SSB index and the next listening opportunity or transmission opportunity associated with the first SSB index. The unit of the interval may be slot, frame, ms, or symbol, etc., see Figure 5c.

[0340] 1) The timing of the first appearance of the resource set or the opportunity for transmission ((the first target resource set)) is associated with the SSB, such as the slot where the SSB is located;

[0341] 2) Based on the first occurrence of the listening opportunity or transmission opportunity associated with the last SSB index, the interval, and the listening opportunity or transmission opportunity associated with the first SSB index, determine the second occurrence of the resource set (second target resource set).

[0342] 3) Continue in this manner until the total number of listening opportunities or transmission opportunities reaches the total number of repetitions.

[0343] For the two situations mentioned above, if a transmission direction conflict is encountered (e.g., overlapping with uplink transmission, or unavailable time slots), the latter overlapping with beam off time (e.g., not within beam service time), when determining the Xth target resource set based on the X-1th target resource set, at least one of the following methods can be used:

[0344] 1) Ignore the Xth target resource set that has transmission direction conflicts or overlaps with beam off time;

[0345] 2) When calculating the interval, skip transmission direction conflicts or beam off time. For example, if the X-1 target resource set is located in time slot 1, and there are no transmission direction conflicts or beam off time, the X resource set should be located in time slot 10. However, if the transmission direction conflicts or beam off time is 2 time slots, then the final determined X resource set should be in time slot 12.

[0346] Implementation Method 3:

[0347] This implementation mainly targets inter-slot repetition within the SSB burst set of SS#0, that is, multiple target resource sets located within the same SSB burst (5ms).

[0348] In this embodiment, multiple target resource sets belong to different listening times or transmission opportunities within the same Search space or CoreSet. In existing mechanisms, different listening times or transmission opportunities occurring within the same Search space or CoreSet in one cycle are associated with different SSB indices, with each SSB index having two listening times or transmission opportunities. The main idea of ​​this embodiment is to associate a specific SSB index with more listening times or transmission opportunities, thus occupying listening times or transmission opportunities originally associated with other SSB indices.

[0349] In some embodiments, the UE determines the target resource set associated with the first SSB index (hereinafter referred to as the first target resource set) and the target resource set not associated with the first SSB index (hereinafter referred to as the second target resource set) based on a first table and a first mapping relationship. The first table is a table for determining the time-domain resource location (listening timing) of SS#0 (without target transmission function enabled). The first mapping relationship is the association between the SSB index and the target resource set. The UE transmits the target downlink channel on the first target resource set and the second target resource set. For example:

[0350] Taking Figure 6 as an example, SSB 0 is the first SSB index. SSB 0 has two listening opportunities or transmission opportunities. The first target resource set associated with SSB 0 includes symbols 0 and 1 of slot 0 (i.e., area 61) and symbols 0 and 1 of slot 1 (i.e., area 61). By defining the second target resource set associated with SSB 0 as the first target resource set of SSB 1, then SS#0 of symbols 0 and 1 of slot 2 (i.e., area 62) is used for the second target resource set associated with SSB 0.

[0351] As a sub-implementation of the above embodiments, the UE determines the non-first SSB index through at least one of the following methods.

[0352] 1) The protocol specifies that, pre-configured, or indicated by RRC, MAC CE, or DCI, it represents a list of non-first SSB indices, such as the set {index i1, index i2, ..., index in}. The UE also considers the listening opportunities or transmission opportunities of SSB indices {index i1, index i2, ..., index in} as the target resource set associated with the first SSB index.

[0353] Optionally, the first information is also used to indicate a list of non-first SSB indices.

[0354] 2) Associate some SSB indexes with the first SSB index. The UE also associates the listening time or transmission opportunity of all other SSB indexes in the entire possible SSB index set (e.g., if there are Nmax SSB indexes in total, then the index set is {0,1,…,Nmax-1}) except the first SSB index as the target resource set associated with the first SSB index.

[0355] Optionally, the UE determines the maximum number of SSB indexes based on the frequency band.

[0356] Optionally, the UE determines the maximum number of SSB indexes based on the MIB instruction.

[0357] 3) The protocol specifies that a list of non-first SSB indices may be pre-configured, or configured via RRC, MAC CE, or DCI, such as the set {index i1, index i2, ..., index in}. The UE will also consider the listening opportunities or transmission opportunities of other SSB indices besides the first SSB index and SSB indices {index i1, index i2, ..., index in} as the target resource set associated with the first SSB index.

[0358] 4) The protocol specifies, pre-configured, or MIB or SIB or RRC or MAC CE or DCI indicates the offset value, or the number of associated non-first SSB indexes; or a list of offset values ​​{offset1, offset2...}.

[0359] The UE also uses the listening opportunity or transmission opportunity associated with SSB index (i+offset) mod Nmax as the target resource set of the first SSB index, where Nmax is the maximum possible number of SSB indexes;

[0360] Alternatively, the UE may also use the listening opportunities or transmission opportunities associated with SSB index(i+offset)mod Nmax, SSB index(i+1+offset)mod Nmax, ..., SSB index(i+N-1+offset)mod Nmax as the target resource set of the first SSB index;

[0361] Alternatively, the UE may also use the listening opportunities or transmission opportunities associated with SSB index(i+offset1)mod Nmax, SSB index(i+1+offset2)mod Nmax, ... as the target resource set of the first SSB index.

[0362] As a sub-implementation described above, when one SSB index is associated with two or more listening opportunities or transmission opportunities, the first listening opportunity or transmission opportunity (such as the Xth one) not associated with the first SSB index is designated as the target resource set of the first SSB index through protocol specification, pre-configuration, or MIB, SIB, RRC, MAC CE, or DCI configuration.

[0363] Implementation Method Four:

[0364] This implementation mainly targets the inter-slot repetition of SS#0 in different half-frames within the same frame, that is, multiple target resource sets located in different X ms within the same SFN, for example, X=5.

[0365] In the implementation, multiple target resource sets may belong to the same Search space or CORESET, which expands the listening time or transmission opportunities of the Search space or CORESET. Alternatively, multiple target resource sets may not belong to the same Search space or CORESET, which defines a new Search space or CORESET, but the multiple target resource sets are related.

[0366] In some embodiments, the UE determines a target resource set (hereinafter referred to as the first target resource set) associated with a given SSB index and a target resource set (hereinafter referred to as the second target resource set) associated with a given SSB index based on a first table and a first mapping relationship. The first table is a table for determining the time-domain resource location (listening timing) of SS#0 (without enabling target transmission function). The first mapping relationship is the association between the SSB index and the target resource set. The first target resource set and the second target resource set are multiple target resource sets for transmitting the target downlink channel. The first target resource set and the second target resource set have the same start symbol and length in their respective slots and are associated with the same SSB index, but the slot index i2 where the second target resource set is located and the slot index i1 where the first target resource set is located have the following relationship:

[0367] 1) If the first target resource set is located in the first half of a system frame;

[0368] 2) If the first target resource set is located in the second half of a system frame.

[0369] It should be noted that formulas 1) and 2) above assume that multiple target resource sets are located within different X = 5ms intervals of the same SFN. If X is not equal to 5, then 5 in the above formulas can be replaced with X.

[0370] Optionally, the first information may indicate a first table, a first mapping relationship, and at least one of the target resource sets associated with a given SSB index.

[0371] In some embodiments, the UE determines a target resource set (hereinafter referred to as the first target resource set) associated with a given SSB index based on a first table and a first mapping relationship, and the UE determines a target resource set (hereinafter referred to as the second target resource set) associated with a given SSB index based on the first table or a second table and a second mapping relationship. The first target resource set and the second target resource set are multiple target resource sets for transmitting a target downlink channel. The first table is a table for determining the time-domain resource location (listening timing) of SS#0 (when the target transmission function is not enabled). The second table is a table for determining additional time-domain resource locations (listening timing) of SS#0 when the target transmission function is enabled. The first mapping relationship and the second mapping relationship are the association relationship between the SSB index and the target resource set, and the two may be the same or different.

[0372] Optionally, the first information may indicate at least one of a first table, a first mapping relationship, a second table, and a second mapping relationship.

[0373] Optionally, the method for determining the first target resource set and the second target resource set includes at least one of the following optional methods 1 (Alt1) and optional method 2 (Alt2).

[0374] Option 1 (Alt1) (Using the first table to determine the listening timing for both halves of the frame): Based on the same first table, all temporal resource locations (listening timings) determined in two different halves of the same SFN are the same, but the mapping between temporal resource locations (listening timings) and SSB indexes can be different. Based on the first and second mapping relationships, the first target resource set and the second target resource set associated with a given SSB index are determined respectively. For example:

[0375] 1) In the first half of the frame, according to the first mapping relationship, the i-th temporal resource location (listening timing) is associated with SSB index i.

[0376] 2) In the second half of the frame, according to the second mapping relationship, the i-th temporal resource location (listening timing) is associated with SSB index j, where i and j are not necessarily equal.

[0377] 3) Within the first and second halves of the frame, the slots of the i-th temporal resource location (listening timing) have the same starting symbol and length.

[0378] Option 2 (Alt2) (Using different tables to determine the listening timing for the first and second halves of the frame):

[0379] Optional Sub-method 1 (SubAlt1): Define a second table similar to the existing SS#0 table (see Table 4), where one slot is not filled with candidate positions of the target resource set, and define a second mapping relationship. The second mapping relationship is used to determine the correspondence between SSB index i and the associated second target resource set.

[0380] Table 4: PDCCH Listening Timing Parameters for Type0-PDCCH CSS Set Repetition – Synchronization Signal Block and CORESET Multiplexing Mode 1 and FR1.

[0381] Optionally, the parameters in Table 4, such as O1 and O2, can be defined by the protocol or indicated by MIB, SIB, DCI, MAC CE, or RRC (e.g., first information).

[0382] Optionally, the second table (e.g., Table 4) is used to determine the second target resource set, wherein the first target resource set is the target resource set determined based on the first table and the first mapping relationship.

[0383] Optionally, the second mapping relationship is defined by the protocol. This second mapping relationship can be used to determine the correspondence between SSB index i and the listening timing of the associated second target resource set, for example:

[0384] UE in SFN C And slot n0 listens to the downlink channel, where,

[0385] if SFN c modP = 0;

[0386] if SFN c mod P = 1.

[0387] Where P is the first cycle, such as SSB or Cell DTX or DRX or Beam hopping cycle (in units of 10ms or SFN).

[0388] Optional SubAlt2: Define a second table (see Table 5) in which the symbols in the slot are filled with candidate positions of the target resource set, and one or more candidate positions are designated as invalid positions by indication or agreement (e.g., by a mask) for transmitting certain channels, such as SIB1 PDSCH.

[0389] Table 5: PDCCH listening timing parameters for Type 0-PDCCH CSS set repeating – synchronization signal block and CORESET multiplexing mode 1 and FR1.

[0390] This indicates the number of symbols contained in a slot.

[0391] Optionally, a mask or pattern can be specified via protocol definition, or via MIB, SIB, DCI, MAC CE, or RRC, indicating which repetitions are enabled or disabled, for example, mask = {x1, x2, ..., x...}. m} represents the x-th x1, x2, ..., x-th ... m The} candidate positions are disabled.

[0392] As a sub-implementation of the previous embodiment, for the second mapping relationship, the SSB index and the target resource set can be associated and mapped through the first mapping method and the SSB index. The target resource set is the additional time-domain resource location (listening timing) of SS#0 determined when the target transmission function is enabled.

[0393] Optionally, the first mapping method includes at least one of the following:

[0394] 1) Continuous mapping: Map all target resource sets belonging to a certain SSB index before mapping the next SSB index;

[0395] For example, referring to Figure 7a, there are 4 candidate transmission or listening positions (second target resource sets) for repeated transmissions of SS#0. Each SSB index is associated with two target resource sets of SS#0. After all the second target resource sets associated with SSB 0 are mapped, all the second target resource sets associated with the next SSB 1 are mapped.

[0396] 2) Sequential mapping: After mapping one target resource set belonging to all SSB indices, the next target resource set belonging to all SSB indices is mapped, and so on.

[0397] For example, referring to Figure 7b, there are 4 candidate transmission or listening positions (second target resource sets) for repeated transmissions of SS#0. Each SSB index is associated with two second target resource sets of SS#0. After mapping one second target resource set associated with SSB 0 and one with SSB 1, the next mapping is performed on one second target resource set associated with SSB 0 and one with SSB 1.

[0398] As a sub-implementation of all the above embodiments, further, when the number of the second target resource set is greater than 1, the second target resource set can extend to a frame different from the current SFN. For example, as shown in Figure 8, the repetition of SS1 (the first target resource set) is greater than 1. The first half of the frame of SFNi includes SS1, the second half of the frame of SFNi includes SS1rep1, and the first half of the frame of SFNi+1 includes SS1rep2. SS1rep1 and SS1rep2 are repetitions of SS1, i.e., the second target resource set.

[0399] Implementation Method 5: (SS#0) Inter-frame inter-slot repetition

[0400] This implementation mainly targets the repetition of SS#0 in different SFNs (Inter-frame inter), that is, the target resource set of the repeated transmission and the target resource set of the initial transmission are located in different SFNs.

[0401] In some embodiments, the UE determines a target resource set (hereinafter referred to as the first target resource set) associated with a given SSB index and a target resource set (hereinafter referred to as the second target resource set) associated with a given SSB index based on a first table and a first mapping relationship. The first table is a table for determining the time-domain resource location (listening timing) of SS#0 (without target transmission function enabled). The first mapping relationship is the association relationship between the SSB index and the target resource set. The first target resource set and the second target resource set are multiple target resource sets for transmitting target downlink channels. The first target resource set and the second target resource set have the same slot index in their respective SFNs, the same start symbol and length in their slots, and are associated with the same SSB index, but the SFN of the frame in which the second target resource set is located is different from the SFN of the frame in which the first target resource set is located.

[0402] As a sub-implementation of the previous embodiment, the second target resource set can reside in multiple SFNs. In this case, it is necessary to define the mapping relationship between the multiple duplicate SFNs and the SFNs of the first target resource set, such as:

[0403] Option 1 (Alt1): SFN sequential repetition, for example, the first target resource set is located in SFN0 frame, and the subsequent X consecutive frames are associated with and completely repeat the SFN0 frame.

[0404] Option 2 (Alt2): SFNs are not repeated sequentially. For example, the first target resource set is located in SFN0 frame, and then every Y frames for a total of Z frames, the frames of SFN0 are associated with and repeated.

[0405] In this embodiment, X, Y, and Z are positive integers.

[0406] As a sub-implementation of the previous sub-implementation, a gap (specified by the protocol or indicated by the network side) may exist between the SFN start position of the frame containing the second target resource set and the SFN of the frame containing the first target resource set, such as SFN_rep or offset.

[0407] Option 1 (Alt1): For SFN sequential repetition, after the interval SFN_rep, X consecutive frames after offset are associated and completely repeated with SFN0 frames.

[0408] Option 2 (Alt2): For non-sequential repetition of SFN, after the interval SFN_rep, every Y frames after offset, for a total of Z frames, associate and repeat SFN0 frames.

[0409] In some embodiments, the UE determines a target resource set (hereinafter referred to as the first target resource set) associated with a given SSB index based on a first table and a first mapping relationship, and the UE determines a target resource set (hereinafter referred to as the second target resource set) associated with a given SSB index based on a first table or a second table and a second mapping relationship. The first target resource set and the second target resource set are multiple target resource sets for transmitting a target downlink channel. The first table is a table for determining the time-domain resource location (listening timing) of SS#0 (when the target transmission function is not enabled). The second table is a table for determining additional time-domain resource locations (listening timing) of SS#0 when the target transmission function is enabled. The first mapping relationship and the second mapping relationship are the association relationship between the SSB index and the target resource set, and the two can be the same or different.

[0410] Optionally, the determination of the first target resource set and the second target resource set includes at least one of the following methods:

[0411] Option 1 (Alt1) (Using the first table to determine the listening timing): Based on the same first table, for the same half-frame and slot corresponding to different SFN frames, all determined temporal resource locations (listening timings) are the same, but the mapping between temporal resource locations (listening timings) and SSB indexes can be different. Based on the first and second mapping relationships, the first target resource set and the second target resource set associated with a given SSB index are determined respectively. For example:

[0412] 1) SFN 1 frame, according to the first mapping relationship, the i-th time domain resource location (listening timing) is associated with SSB index i.

[0413] 2) SFN 2 frames, according to the second mapping relationship, the i-th time domain resource location (listening timing) is associated with SSB index j, where i and j are not necessarily equal.

[0414] 3) Within the same half-frame and slot in different frames, the i-th temporal resource position (listening timing) has the same starting symbol and length in its respective slot.

[0415] Option 2 (Alt2) (Use different tables to determine the timing of the monitoring):

[0416] Optional Sub-method 1 (SubAlt1): Define a second table similar to the existing SS#0 table (see Table 6), where one slot is not filled with candidate positions of the target resource set, and define a second mapping relationship. The second mapping relationship is used to determine the correspondence between SSB index i and the associated second target resource set.

[0417] Table 6: PDCCH Listening Timing Parameters for Type 0-PDCCH CSS Set Repetition – Synchronization Signal Block and CORESET Multiplexing Mode 1 and FR1.

[0418] Optionally, the parameters in Table 6, such as O1 and O2, can be defined by the protocol or indicated by MIB, SIB, DCI, MAC CE, or RRC (e.g., first information).

[0419] Optionally, the second table (e.g., Table 6) is used to determine the second target resource set, wherein the first target resource set is the target resource set determined based on the first table and the first mapping relationship.

[0420] Optionally, the second mapping relationship is defined by the protocol. This second mapping relationship can be used to determine the correspondence between SSB index i and the listening timing of the associated second target resource set, for example:

[0421] UE in SFN C And slot n0 listens to the downlink channel, where,

[0422] if SFN c mod(P+X) = 0;

[0423] if SFN c mod(P+X)=1.

[0424] Where P is the first period, such as SSB, Cell DTX, DRX, or Beam hopping period (in units of 10ms or SFN). X is the number of SFN intervals between the frame containing the second resource set and the frame containing the first resource set.

[0425] Optional SubAlt2: Define a second table (see Table 7) in which the symbols in the slot are filled with candidate positions of the target resource set, and one or more candidate positions are invalidated by indication or agreement (e.g., by mask) for transmission of certain channels, such as SIB1 PDSCH.

[0426] Table 7: PDCCH listening timing parameters for Type 0-PDCCH CSS set repeating – synchronization signal block and CORESET multiplexing mode 1 and FR1.

[0427] Optionally, a mask or pattern can be specified via protocol definition, or MIB, SIB, DCI, MAC, CE, or RRC (e.g., first information) to indicate which repetitions are enabled or disabled, for example, mask = {x1, x2, ..., x...} m} represents the x-th x1, x2, ..., x-th ... m The} candidate positions are disabled.

[0428] As a sub-implementation of the previous embodiment, when the target resource set to which the initial transmission belongs corresponds to multiple target resource sets to which repeated transmissions belong (multiple repeated transmissions), assuming that the target resource set to which the initial transmission belongs is associated with the SSB index, then the multiple target resource sets to which repeated transmissions belong can be associated and mapped with the SSB index through the second mapping method.

[0429] Optionally, the second mapping method includes at least one of the following:

[0430] 1) Continuous mapping: After mapping all the target resource sets of repeated transmissions belonging to a certain SSB index, the next SSB index is mapped.

[0431] For example, referring to Figure 7a, there are 4 candidate transmission or listening positions (second target resource sets) for repeated transmissions of SS#0. Each SSB index is associated with two target resource sets of SS#0. After mapping all the target resource sets (second target resource sets) of repeated transmissions associated with SSB 0, the target resource sets (second target resource sets) of repeated transmissions associated with the next SSB 1 are mapped.

[0432] 2) Sequential mapping: After mapping the target resource set to which one duplicate transmission belongs to all SSB indexes is mapped, the next duplicate transmission is mapped, and so on.

[0433] For example, referring to Figure 7b, there are 4 candidate transmission or listening positions (second target resource sets) for repeated transmissions of SS#0. Each SSB index is associated with two target resource sets (second target resource sets) of repeated transmissions of SS#0. After mapping one target resource set (second target resource set) of repeated transmissions associated with SSB 0 and SSB 1, the next mapping is performed on one target resource set (second target resource set) of repeated transmissions associated with SSB 0 and SSB 1.

[0434] Implementation Method Six:

[0435] This implementation method mainly focuses on the repetition configuration method after obtaining SIB1.

[0436] In the current SS linking mechanism, the two search spaces linked for repeated transmissions must have the same period, duration, and offset. Therefore, it can only be used for intra-slot repetition, and the maximum number of repetitions is two. For other cases, a new configuration method needs to be defined.

[0437] In some embodiments (CSS linking), two or more CSSs of Type 0 or Type 0A or Type 1 or Type 1A or Type 2 or Type 2A are associated as multiple target resource sets for the transmission target downlink channel.

[0438] For example, the methods for determining the target resource set include at least one of the following:

[0439] 1) MIB, SIB, RRC, MAC, CE, or DCI contain a first identifier in the Search space configuration belonging to CSS. Multiple Search spaces with the same first identifier are multiple target resource sets for transmitting target downlink channels.

[0440] Optionally, the first information associates each target resource set with a target downlink channel.

[0441] Optionally, the first information associates only one of the multiple target resource sets with the target downlink channel. For example, a certain search space is configured with only one search space ID, and all other search spaces associated with that ID are associated with the target downlink channel. The associated other search spaces can be search spaces with the same first identifier.

[0442] 2) In configuring the transmission resources of the target downlink channel, SIB, RRC, MAC CE, or DCI associates multiple target resource sets with the target downlink channel. For example, a Search space (-list) contains the configurations or IDs of multiple Search spaces. These multiple Search spaces belong to the CSS and are used to transmit the target downlink channel.

[0443] In some embodiments (inter-slot linking), it is possible to configure the same periodicity and different offsets for multiple target resource sets associated with a linking ID. For example:

[0444] The period of the first target resource set (or search space) is X, and the offset is O1;

[0445] The period of the second target resource set (or search space) is X, and the offset is O2;

[0446] The first target resource set and the second target resource set appear in different slots, but carry the same target downlink channel.

[0447] Referring to Figure 9a, the first target resource set is SS1, and the second target resource set is SS2. The period of SS1 and SS2 is P time slots. SS1 is located in time slot O1, and SS2 is located in time slot O2.

[0448] In some embodiments, multiple target resource sets associated by a linking ID are used, with the period of one target resource set serving as the period of all target resource sets, and the offset plus bias value of that target resource set serving as the offset of the other target resource sets. For example:

[0449] The period of the first target resource set (or search space) is X, and the offset is O1;

[0450] The second target resource set (or Search Space) is not configured with a period, and the offset value is O'. The offset of the second target resource set (or SS) is O1+O'.

[0451] The first and second target resource sets appear in different slots, but carry the same target downlink channel.

[0452] Optionally, the first target resource set is configured with a period and an offset, while the second target resource set is configured with only an offset; or, both the first and second target resource sets are configured with a period and an offset, but the period value of the second target resource set is ignored when applied.

[0453] Referring to Figure 9b, the first target resource set is SS1, the second target resource set is SS2, the period of SS1 is P time slots, SS2 has no period configured, SS1 is located in time slot O1, and SS2 is located in time slot O1+O'.

[0454] In some embodiments, the first information indicates at least one of the following:

[0455] 1) Enable or disable the target transmission function for the target downlink channel;

[0456] For example, the first information indicates that the target transmission function and multiple target resource sets are explicitly configured to be enabled for a specific target downlink channel, or the target transmission function is implicitly enabled by configuring multiple target resource sets.

[0457] Alternatively, the first information indicates that the target transmission function is explicitly disabled for a specific target downlink channel, or the target transmission function is implicitly disabled by releasing a set of target resources.

[0458] 2) Configure or reconfigure multiple target resource sets that enable target transmission functions for the target downlink channel.

[0459] For example, the first information indicates that multiple target resource sets are explicitly modified for a specific target downlink channel.

[0460] In some embodiments, the first information may indicate at least one of the following through a first indication method: enabling or disabling the target transmission function, configuring or reconfiguring at least one target resource set;

[0461] The first instruction method includes at least one of the following:

[0462] 1) RRC, MIB, SIB, or MAC CE indication;

[0463] 2) Specific DCI format instructions;

[0464] For example, a DCI format scrambled with one or more Radio Network Temporary Identifiers (RNTIs) can be used to enable or disable target transmission functions, and / or to configure or reconfigure the multiple target resource sets.

[0465] 3) DCI indication carried by a specific target resource set;

[0466] For example, DCI transmitted on one or more specific target resource sets is used to enable or disable target transmission functions, and / or to configure or reconfigure the multiple target resource sets.

[0467] 4) Neighbor cell indication;

[0468] Optionally, neighbor cell indication includes indications of signaling such as RRC, MAC CE, DCI, and Handover command of neighbor cells.

[0469] 5) Inter-system (inter-RAT) indication;

[0470] Optionally, the inter-system indication includes indications of inter-system signaling such as RRC or MAC CE or DCI, Handover command, etc.

[0471] In some embodiments (SIB1 indicates more than 4 CSSs), the first information indicates more than 4 CSSs by at least one of the following methods:

[0472] 1) A list of configuration CSSs specified by SIB1 (such as commonSearchSpaceList) can contain more than 4 CSSs. For example, the list can be a sequence containing multiple configurations (such as SearchSpace) that define target resource sets, and the length of the sequence is greater than 4.

[0473] 2) SIB1 indicates that the extended configuration CSS list (such as commonSearchSpaceList-Ext) contains configurations for additionally defined CSS, where each CSS in the CSS list (such as commonSearchSpaceList) and the extended CSS list (such as commonSearchSpaceList-Ext) has a different searchSpaceId.

[0474] Implementation method seven: Determine the candidate transmission location or monitoring location of the target resource set based on the first-time information.

[0475] This implementation mainly considers the impact of the first information on determining the candidate transmission location or listening location of the target resource set.

[0476] In some embodiments, the first information includes first time information, and the UE determines the candidate transmission location or monitoring location of the target resource set based on the first time information, specifically including:

[0477] UE in SFN C And slot n0 listens to the downlink channel, where,

[0478] if SFN c mod(X) = 0;

[0479] if SFN c mod(X) = 1.

[0480] Where X is the first period, such as SSB or Cell DTX or DRX or Beam hopping or Beam revisit period (in units of 10ms or SFN).

[0481] In some embodiments, the first information includes first time information and second time information. The UE determines the candidate transmission location or listening location of the target resource set based on the first time information and the second time information, specifically including:

[0482] 1) The first time information includes information related to the time domain window used to transmit the target channel.

[0483] Example 1 (Case 1): The time-domain window includes: the SI window, the RAR window, the paging frame, or the paging occasion, where,

[0484] The SI Window is a periodically appearing window. The window's period, offset, and size can be configured. Within this window, the PDCCH that schedules the SIB PDSCH is received.

[0485] A Paging Frame or Paging Occasion is a periodically occurring window. The window period and offset are configurable, and the window size is fixed. Within this window, the PDCCH that schedules the Paging PDSCH is received.

[0486] The RAR Window is a non-periodic window whose size is configurable (RAR Window, indicated by ra-ResponseWindow). Within this window, PDCCHs for scheduling message 2 (Msg2) or message B (MsgB) are received.

[0487] Example 2 (Case 2): Determine the first window based on SIB1.

[0488] Optionally, the first window is the TTI of the target downlink channel, such as the TTI of SIB1.

[0489] Optionally, the position (offset) of the first window within the period and the size of the first window are associated with the target downlink channel, or the position of the target resource set of the target downlink control channel that schedules the target downlink channel. For example, the position and size of the first window are determined based on the Searchspace Zero of the SIB1PDCCH.

[0490] 2) The second time information includes at least one of the following: information about the time window for beam activation or on, information about the time window for Cell DTX or DRX on, and information about the time window for transmitting SSB;

[0491] 3) Based on the first time information and the second time information, the UE can determine the temporal domain position of the target resource set outside the first window, and redetermine the temporal domain position of that part so that it is located within the subsequent first window. Optionally:

[0492] Assuming the target resource set (first target resource set) determined by the first window has a slot index of n and an SFN of f outside the first window, then based on the period P (slots) of the second time information, the update position of the first target resource set can be determined as slot index (n+P) mod 10 and SFN (f+ceil((n+P) / 10) mod 1024, where ceil() represents rounding up.

[0493] If the target resource set located in the i-th first window is updated to the j-th first window using the above method, and it overlaps at least partially with the target resource set in the j-th time window in the time domain, it can be resolved by at least one of the following methods:

[0494] 1) Ignore part or all of the target resource set in the i-th first window;

[0495] 2) Ignore part or all of the target resource set in the j-th first window.

[0496] Where i and j are integers.

[0497] Referring to Figure 10, some of the target resource set in the SI window is outside the beam-on time window. Adjust the position of this part of the target resource set so that it is within the next beam-on time window.

[0498] Implementation Method 8: Handling conflicts between the target resource set and SSB or other channels.

[0499] In some embodiments, when the target resource set and the first channel or signal occupied resources (such as resource elements (REs)) at least partially overlap, the terminal also performs at least one of the following operations:

[0500] 1) Ignore or skip the first channel or signal;

[0501] 2) Ignore or skip overlapping target resource sets;

[0502] 3) When receiving the first channel or signal, perform puncturing or rate matching (RM) on REs that overlap with the target resource set;

[0503] 4) When receiving the target downlink channel in the target resource set, perform puncturing or RM on the REs that overlap with the first channel or signal.

[0504] Optionally, the first channel or signal includes at least one of the following:

[0505] 1) SSB;

[0506] 2) Potential (potentially transmitted) SSBs;

[0507] 3) Other uplink or downlink signals or channels;

[0508] 4) Not applicable to transmissions in the current transmission direction, such as uplink slots or symbols.

[0509] Implementation Method Nine: Repeated Transmission of SIB1 PDSCH.

[0510] In some embodiments, the first information indicating the target downlink channel (for PDSCH) can be carried in at least one of the following ways:

[0511] 1) The target downlink channel includes, but is not limited to, at least one of the following channels: initial transmission or retransmission PDSCH:

[0512] a)SIB1,

[0513] b) Other system messages (Other SI, OSI), or SI messages other than SIB1.

[0514] c) Message 2 (Msg2), Message 4 (Msg4), Message B (MsgB), or Paging channels.

[0515] 2) The target downlink control channel associated with the scheduling target downlink channel;

[0516] For example, if the PDCCH of the target PDSCH has the target transmission function enabled, then the target PDSCH will also have the target transmission function enabled.

[0517] Furthermore, when the PDCCH is transmitted through a first target resource set of quantity X, the PDSCH is also transmitted through a second target resource set of quantity X or X*Y, where Y is a target downlink control channel indication, or a signaling indication such as RRC or MAC CE, or a value specified by the protocol.

[0518] 3) Target downlink control channel indication via scheduling the target downlink channel;

[0519] For example, the target downlink control channel indication for scheduling the target downlink channel includes at least one of the following:

[0520] a) The PDCCH of the target PDSCH is used to indicate whether the SIB1 PDSCH enables the target transmission function;

[0521] b) The PDCCH of the scheduling target PDSCH indicates the number of target resource sets, or the resource location, of the SIB1 PDSCH;

[0522] c) The PDCCH of the target PDSCH is in a specific format, or is scrambled with a specific RNTI, indicating whether the target transmission function is enabled.

[0523] 4) MIB or SIB indication;

[0524] Optionally, the MIB or SIB indication includes at least one of the following: a) whether the PDSCH enables the target transmission function, b) the number of target resource sets of the PDSCH, or the resource location.

[0525] Optionally, SIB1 can indicate first information related to SIB1 PDSCH. For example, before receiving SIB1, the configuration of SIB1 PDSCH is the default configuration, such as the target downlink control channel associated with the scheduling target downlink channel. After receiving SIB1, the relevant configuration is overridden or updated.

[0526] 5) RRC indication;

[0527] Optionally, the RRC indication includes at least one of the following:

[0528] a) RRC configures a specific PDSCH Time Domain Resource Allocation (TDRA) table, with at least one row in the table representing the first information related to PDSCH, such as at least one of the following: i) enabling or disabling the target transmission function of PDSCH, ii) parameters related to the target transmission function (such as the number of target resource sets, or, resource location);

[0529] b) By scheduling the target PDSCH, the PDCCH indicates a specific row in the TDRA table, indicating the first information related to the PDSCH.

[0530] In some embodiments, the UE determines the resource location of the target resource set for the target downlink channel in a manner that:

[0531] 1) Pre-configured, or, protocol-specified, or, the target downlink control channel for scheduling the target downlink channel indicates the interval between multiple target resource sets of the target downlink channel, such as an interval of X slots between adjacent target resource sets;

[0532] 2) The target downlink control channel for scheduling the target downlink channel indicates the interval between the target downlink channel and the target downlink control channel, specifically including:

[0533] a) Pre-configured, or the protocol specifies candidate values ​​for the interval, such as defining multiple specific k0 values; the target downlink control channel for scheduling the target downlink channel indicates at least one of the multiple candidate values; the UE determines the interval according to k0;

[0534] b) Pre-configured, or, as specified in the protocol, or, the target downlink control channel indicates the offset value; the target downlink control channel indicates the k0 of the target downlink channel; the UE determines the interval according to k0+offset.

[0535] Where k0 is an integer.

[0536] Implementation Method 10: Instruction Method via MIB

[0537] In some embodiments, the first information is carried using certain fields in the MIB:

[0538] 1) Common Subcarrier Spacing: Currently 1 bit, used to indicate one of the two candidate subcarrier spacings (SCS). If the candidate SCS of the current network is uniquely determined, this 1 bit can be used to carry other information.

[0539] 2) SSB Subcarrier Offset (ssb-SubcarrierOffset)(k_ssb): Currently 4 bits, used to indicate the offset between the center frequency of the least significant subcarrier in the SSB and the center frequency of the least significant subcarrier in the Common Resource Block (CRB). When the SSB and CRB have the same SCS, the most significant bit (MSB) of this field does not carry useful information, but other information can be carried using the MSB of this field.

[0540] 3) Specific fields, such as the repetition indicator field;

[0541] Optionally, the specific field may be located in the last bit of the MIB, or in other positions;

[0542] Optionally, the specific field is effective for the UE or network defined in the first version, and is a spare bit for the UE or network defined in the second version; the first version includes, but is not limited to, 3GPP Release 19 (R19) or later, and the second version includes 3GPP R19 or earlier.

[0543] 4) Half-frame indication: Currently 1 bit, used to indicate whether the current SSB is located in the first or second half of the frame. When the SSB is fixed in the first or second half of the frame for transmission, this 1 bit can be used to carry other information.

[0544] As a sub-implementation of the above embodiments, the bits capable of carrying other information represent the first information, such as:

[0545] a) Use one bit of the field in 1) to 3) above to indicate whether repeated transmission of the target downlink channel is enabled;

[0546] Optionally, the target downlink channel may include at least one of the following: target downlink control channel, target downlink control scheduled target downlink channel, such as: PDCCH, PDSCH, PDCCH and PDSCH.

[0547] In other words, whether to enable repeated transmission can be applied to multiple target downlink channels. For example, when the target PDCCH enables repeated transmission, its scheduled PDSCH also enables repeated transmission.

[0548] b) Use X bits of the fields in 1) to 3) above to represent at least one of the following: the number of target resource sets, the number of candidate transmission / monitoring locations of the target resource sets, and the number of repeated transmissions of the target channel.

[0549] c) Use Y bits of the fields in 1) to 3) above to characterize the resource location-related parameters of the target resource set (including at least some of the parameters mentioned in the foregoing embodiments).

[0550] d) The protocol predefines multiple sets of parameters, wherein each set of parameters includes at least one of the following: whether to enable repeated transmission of the target downlink channel, the number of target resource sets, the number of candidate transmission / listening positions of the target resource sets, the number of repeated transmissions of the target channel, and resource location-related parameters for determining the target resource set (including at least some of the parameters mentioned in the foregoing embodiments). K bits of the fields in 1) to 3) above are used to represent enabling one of the multiple sets of parameters.

[0551] Where X, Y, and K are integers.

[0552] In some embodiments, modifying or adding a specific row to the CORESET#0 resource instruction table, when the instruction selects that row, indicates at least one of the following information:

[0553] 1) Enable or disable repeated transmission of the target downlink channel;

[0554] 2) At least one of the following: the number of target resource sets, the number of candidate transmission / monitoring locations for the target resource sets, and the number of repeated transmissions for the target channel;

[0555] 3) Determine the resource location-related parameters of the target resource set (including at least some of the parameters mentioned in the foregoing embodiments).

[0556] In some embodiments, the value of at least one of the following parameters in the first information is determined based on at least one parameter of MIB, SIB, RRC, MAC CE, or DCI, including:

[0557] 1) Enable or disable repeated transmission of the target downlink channel;

[0558] 2) At least one of the following: the number of target resource sets, the number of candidate transmission locations or monitoring locations of the target resource sets, and the number of repeated transmissions of the target channel;

[0559] 3) Determine the resource location-related parameters of the target resource set (including at least some of the parameters mentioned in the foregoing embodiments).

[0560] As a sub-example of the above embodiment, when CORESET is 24 Physical Resource Blocks (PRBs), repeated transmission of the downlink control channel is enabled, and other related parameters are set to values ​​specified by the protocol or pre-configured.

[0561] Implementation Method Eleven: The downlink data channel scheduled by the control channel carried by the target resource set conflicts with the SSB transmission.

[0562] When the downlink data channel scheduled by the control channel carried by the target resource set conflicts with the SSB transmission, the number of repetitions of the downlink data channel is counted according to the available time slots or available repetitive transmissions. The available time slots / available repetitive transmissions are determined by at least one of the SSB candidate positions, the previous frame configuration, and the downlink frame configuration.

[0563] In some embodiments, the candidate SSB position is determined by protocol agreement or higher-layer parameters (e.g., the SSB position in a burst (ssb-PositionsInBurst)). For SIB1 PDSCH, ssb-PositionsInBurst can be configured through ServingCellConfigCommon; for msg2, msgB, msg4, or paging PDSCH, ssb-PositionsInBurst can be configured through ServingCellConfigCommon or ServingCellConfigCommonSIB.

[0564] In some embodiments, the uplink and downlink frame configuration is configured through higher-layer parameters, such as the Time Division Duplexing (TDD) uplink or downlink configuration common parameter (tdd-UL-DL-ConfigurationCommon).

[0565] In some embodiments, if a candidate SSB exists in a time slot, then that time slot is not used for the downlink data channel transmission, i.e., it is an unavailable time slot or an unavailable repeated transmission count, and is not counted in the available time slots or available repeated counts of the downlink data channel.

[0566] In some embodiments, depending on the uplink and downlink frame configuration, the uplink time slot is not used for downlink data channel transmission, i.e., it is an unavailable time slot / unavailable repetition, and is therefore not included in the available time slot or available repetition of the downlink data channel.

[0567] It should be noted that the number of retransmissions of the downlink data channel indicated or configured is the available time slot or the number of available retransmissions.

[0568] Implementation Method Twelve: Scheduling the new DCI format for the downlink data channel.

[0569] In some embodiments, the control channel that schedules the downlink data channel uses a first DCI format. The first DCI format uses a new RNTI scrambling, where "new" refers to a new name or a new value configured or defined for an existing RNTI in this scenario. For example, the System Information RNTI (SI-RNTI) may have one or more new values ​​configured or defined for scheduling repeated transmissions of SIB1 PDSCH; the Paging RNTI (P-RNTI) may have one or more new values ​​configured or defined for scheduling repeated transmissions of Paging PDSCH; and the Temporary Cell RNTI (TC-RNTI) may have one or more new values ​​configured or defined for scheduling repeated transmissions of Msg4 PDSCH.

[0570] Optionally, the length of the RNTI, or the number of bits in the payload and cyclic redundancy check (CRC) of the first DCI format, is no greater than 24 bits, 32 bits, or 48 bits. For example, 20 bits, 18 bits, 16 bits, 12 bits, 10 bits, or 8 bits.

[0571] Optionally, the payload bit count of the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

[0572] Optionally, the number of CRC bits in the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

[0573] Optionally, the MSB or Least Significant Bit (LSB) of the new RNTI can be 0 bits or 1 bit of a given length L, where the length L is the difference between the first CRC length and the second CRC length. The first CRC length is the longest CRC length used by each DCI format in the system, such as 24 bits, and the second CRC length is the CRC length of the first DCI format, such as 4 bits, 6 bits, 8 bits, 10 bits, 12 bits, 14 bits, or 16 bits.

[0574] In some embodiments, when the control channel for scheduling the downlink data channel uses a first DCI format, and the downlink data channel is a SIB1 PDSCH retransmission, the first DCI format includes at least one of the following fields:

[0575] 1) Frequency domain resource assignment, X bits, the value of X is based on the bandwidth of CORESET#0, or is fixed at 5MHz bandwidth.

[0576] In some embodiments, if the PDSCH bandwidth and location are assumed to be the same as CORESET#0 or the target resource set bandwidth and location, then X = 0.

[0577] Alternatively, X=1 can indicate whether the bandwidth of PDSCH is in the first or second half of the CORESET#0 bandwidth.

[0578] Further optionally, X=2 can indicate which 1 / 4 of the bandwidth of CORESET#0 the PDSCH bandwidth is located in.

[0579] Alternatively, the maximum bandwidth can be set to CORESET#0, with FDRA indicating the starting position or length of the PDSCH bandwidth within the CORESET#0 bandwidth. In this case, the total number of bits for X is... in, This indicates the number of resource blocks in CORESET0.

[0580] 2) Time domain resource assignment: 0 bits, 1 bit, 2 bits, 3 bits, or 4 bits.

[0581] Optionally, 0 bits indicate the use of a fixed TDRA.

[0582] Optionally, different numbers of bits correspond to the maximum number of entries or the number of indices in the TDRA table. For example, 1 bit means that the TDRA table has only 2 entries.

[0583] 3) Modulation and coding scheme (MCS): 0 bits, 1 bit, 2 bits, 3 bits, or 4 bits.

[0584] Optionally, 0 bits indicate the use of a fixed MCS.

[0585] Optionally, different numbers of bits correspond to the maximum number of entries or the number of indexes in the MCS table. For example, 1 bit means that the TDRA table has only 2 entries.

[0586] One possible design is to select specific rows from a first table to form the MCS table of the first DCI format, which limits the modulation order to no more than a certain threshold or the spectral efficiency to no more than a certain threshold. The first table can be the MCS table used by other DCI formats or PDSCH.

[0587] 4) System message indication, 1 bit, 2 bits, 3 bits, or 4 bits.

[0588] For example, 1 bit is used to indicate whether the PDSCH is SIB1 or OSI. If there are more bits, it can also indicate which SIB in OSI the PDSCH belongs to.

[0589] In some embodiments, when the control channel for scheduling the downlink data channel uses a first DCI format, and the downlink data channel is a paging PDSCH repeated transmission, the first DCI format includes at least one of the following fields:

[0590] 1) Frequency domain resource allocation, X bits, the value of X is based on the bandwidth of CORESET#0, or is fixed at 5MHz bandwidth.

[0591] In some embodiments, if the PDSCH bandwidth and location are assumed to be the same as CORESET#0 or the target resource set bandwidth and location, then X = 0.

[0592] Alternatively, X=1 can indicate whether the bandwidth of PDSCH is in the first or second half of the CORESET#0 bandwidth.

[0593] Further optionally, X=2 can indicate which 1 / 4 of the bandwidth of CORESET#0 the PDSCH bandwidth is located in.

[0594] Alternatively, the maximum bandwidth can be set to CORESET#0, with FDRA indicating the starting position or length of the PDSCH bandwidth within the CORESET#0 bandwidth. In this case, the total number of bits for X is... in, This indicates the number of resource blocks in CORESET0.

[0595] 2) Time-domain resource allocation: 1 bit, 2 bits, 3 bits, or 4 bits.

[0596] 3) MCS, 1 bit, 2 bits, 3 bits, or 4 bits.

[0597] Optionally, different numbers of bits correspond to the maximum number of entries or the number of indexes in the MCS table. For example, 1 bit means that the TDRA table has only 2 entries.

[0598] One possible design is to select specific rows from a first table to form the MCS table of the first DCI format, which limits the modulation order to no more than a certain threshold or the spectral efficiency to no more than a certain threshold. The first table can be the MCS table used by other DCI formats or PDSCH.

[0599] 4) Short Message Indicator, 1 bit, 2 bits, 3 bits, or 4 bits.

[0600] Optionally, the SMS indicator indicates whether the DCI is an SMS message, or, if so, which type of SMS message.

[0601] 5) Short message: 6 bits, 7 bits, or 8 bits.

[0602] When a short message indicates that the DCI is a short message, the FDRA, TDRA, and MCS fields in the DCI do not need to exist. Instead, the short message bits are carried before or after the short message indication, and the short message bits carry the short message information.

[0603] 6) TB scaling indication, 0 bits, 1 bit, or 2 bits.

[0604] Optionally, when the TB scaling indicator is 0 bits, it indicates that a fixed TB scaling value is used.

[0605] Optionally, when the TB scaling indicator is 1 bit, the indicator selects one from a maximum of two candidate values. The two candidate values ​​can be two fixed values ​​from four candidate values, for example, only four candidate values ​​are defined, but two fixed values ​​are selected for the 1-bit indicator.

[0606] Optionally, when the TB scaling indicator is 2 bits, the indicator selects 1 from a maximum of 4 candidate values.

[0607] In some embodiments, when the control channel scheduling the downlink data channel uses a first DCI format, and the downlink data channel is a repeated transmission of msg2 or msgB PDSCH, the first DCI format includes at least one of the following fields:

[0608] 1) Frequency domain resource allocation, X bits, where the value of X is referenced to the bandwidth of CORESET#0, or fixed to a 5MHz bandwidth. In some embodiments, if the PDSCH bandwidth and location are the same as those of CORESET#0 or the target resource set, then X = 0.

[0609] Alternatively, X=1 can indicate whether the bandwidth of PDSCH is in the first or second half of the CORESET#0 bandwidth.

[0610] Further optionally, X=2 can indicate which 1 / 4 of the bandwidth of CORESET#0 the PDSCH bandwidth is located in.

[0611] Alternatively, the maximum bandwidth can be set to CORESET#0, with FDRA indicating the starting position or length of the PDSCH bandwidth within the CORESET#0 bandwidth. In this case, the total number of bits for X is... in, This indicates the number of resource blocks in CORESET0.

[0612] 2) Time domain resource assignment: 1 bit, 2 bits, 3 bits, or 4 bits.

[0613] Optionally, different numbers of bits correspond to the maximum number of entries or the number of indices in the TDRA table. For example, 1 bit means that the TDRA table has only 2 entries.

[0614] 3) MCS (Modulation and Coding Scheme), 1 bit, 2 bits, 3 bits, or 4 bits.

[0615] Optionally, different numbers of bits correspond to the maximum number of entries or the number of indexes in the MCS table. For example, 1 bit means that the TDRA table has only 2 entries.

[0616] One possible design is to select specific rows from a first table to form the MCS table of the first DCI format, which limits the modulation order to no more than a certain threshold or the spectral efficiency to no more than a certain threshold. The first table can be the MCS table used by other DCI formats or PDSCH.

[0617] 4) TB scaling indication, 1 bit or 2 bits.

[0618] Optionally, when the TB scaling indicator is 1 bit, the indicator selects one from a maximum of two candidate values. The two candidate values ​​can be two fixed values ​​from four candidate values, for example, only four candidate values ​​are defined, but two fixed values ​​are selected for the 1-bit indicator.

[0619] Optionally, when the TB scaling indicator is 2 bits, the indicator selects 1 from a maximum of 4 candidate values.

[0620] Implementation Method Thirteen: Timing Determination of PDCCH Repetition and its Scheduled PDSCH.

[0621] In some embodiments, the transmission timing of a target downlink channel scheduled through a target downlink control channel carried by multiple target resource sets is determined by at least one of the following methods:

[0622] 1) Based on the earliest target resource set (e.g., slot, frame, symbol) t1 in multiple target resource sets, and the timing of the target downlink control channel scheduling (e.g., k0), or the timing defined by the protocol (e.g., k0), the time of the target downlink channel is determined to be t1+k0.

[0623] 2) Based on the latest target resource set time (e.g., slot, frame, symbol) t1 in multiple target resource sets, and the timing of the target downlink control channel scheduling (e.g., k0), or the timing defined by the protocol (e.g., k0), the target downlink channel time is determined to be t1+k0.

[0624] 3) Based on the time (e.g., slot, frame, symbol) t1 of the Xth target resource set in multiple target resource sets, and the timing of the target downlink control channel scheduling (e.g., k0), or the timing defined by the protocol (e.g., k0), the time of the target downlink channel is determined to be t1+k0.

[0625] Optionally, X is a protocol definition, or a MIB, SIB, RRC, MAC CE, or DCI (such as first information) indication.

[0626] 4) Based on the time (e.g., slot, frame, symbol) t1, t2, ... of at least two target resource sets in multiple target resource sets, and the timing of the target downlink control channel scheduling (e.g., k0), or the timing defined by the protocol (e.g., k0), determine the time of the target downlink channel as t1+k0, t2+k0, ...

[0627] The target resource set for a given time can be selected from multiple target resource sets in one of the following ways:

[0628] a) Select one target resource set at intervals of K target resource sets;

[0629] b) Select several target resource sets forward / backward from the Zth target resource set. Optionally, select one target resource set every K intervals.

[0630] Optionally, K and Z are protocol definitions, or K and Z are indicated by MIB, SIB, RRC, MAC CE, or DCI (such as first information).

[0631] Where K, Z, X, t1, t2, and k0 are integers.

[0632] The above embodiments one through thirteen propose a general downlink channel retransmission mechanism. Specifically, these embodiments are applicable to the UE-specific Search Space (USS), Common Search Space (CSS) PDCCH, and their associated PDSCH. By defining various retransmission mechanisms such as intra-slot, intra-SSB-burst-sets, inter-slot, inter-half-frame inter-slot, and inter-frame inter-slot, the transmission reliability of the downlink control channel in both connected and disconnected states is improved. Furthermore, the above embodiments also propose various methods for indicating downlink control channel retransmission-related parameters through the MIB, enabling the UE to obtain relevant parameters in the disconnected state for use in retransmission of, for example, Type 0CSS PDCCH.

[0633] Referring to Figure 11, an embodiment of this application provides a downlink channel transmission device applied to a terminal. The device 1100 includes: a first transceiver unit 1101 and a first processing unit 1102.

[0634] The first processing unit 1102 is configured to determine at least one of the following based on the first information: whether the target transmission function is enabled, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmissions of the target downlink channel, and the resource positions of the target resource sets.

[0635] The first transceiver unit 1101 is used to receive a target downlink channel in at least one target resource set;

[0636] The target downlink channel repeatedly transmits or carries the same content on one or more target resource sets.

[0637] In one embodiment of this application, when transmitting a target downlink channel using multiple target resource sets of the plurality of target resource sets,

[0638] The multiple target resource sets are located in the same first time unit; or, the multiple target resource sets are located in different first time units.

[0639] Wherein, when the plurality of target resource sets are located in the same first time unit, at least one target resource set in the plurality of target resource sets and the candidate synchronization signal block (SSB) position occupying the second time unit do not overlap, or at least one target resource set in the plurality of target resource sets and the candidate SSB position occupying the second time unit have at least partial overlap;

[0640] Alternatively, if the multiple target resource sets are located in different first time units...

[0641] When at least one target resource set in the plurality of target resource sets is associated with a first SSB index, and the first SSB index is the SSB index in which the transmission actually occurred, the other target resource sets in the plurality of target resource sets are associated with candidate SSB indices that are not the first SSB index, and the number of candidate SSB indices is at least one.

[0642] or,

[0643] The plurality of target resource sets include at least two target resource sets, and the interval between the at least two target resource sets is X third time units. The X third time units include the time interval occupied by one SSB burst, or the time interval occupied by half a system frame, or the time interval occupied by one system frame, where X is a positive integer.

[0644] In one embodiment of this application, when the plurality of target resource sets include: a first target resource set and a second target resource set,

[0645] The starting position of the first target resource set within the first time unit is a specific time position, and the time position is at least one of absolute time, system frame number, time slot index, and symbol index.

[0646] or,

[0647] The first target resource set and the second target resource set are separated by one or more time units, and the time unit is at least one of time slot, symbol, system frame, and millisecond.

[0648] In one embodiment of this application, the first information includes a first parameter, which is used to determine at least one of the following: the resource location of the target resource set, and the candidate transmission location or listening location of the target resource set;

[0649] The first parameter is obtained through at least one of the following methods: protocol definition, network-side indication;

[0650] The network-side indication includes at least one of the following:

[0651] The network side directly indicates the first parameter;

[0652] The network side indicates at least one set of first parameters from a plurality of sets of first parameters, wherein the plurality of sets of first parameters are defined by the protocol.

[0653] In one embodiment of this application, the first parameter is associated with at least one of the following:

[0654] The target downlink channel;

[0655] At least one repeated transmission of the target downlink channel;

[0656] At least one of the plurality of target resource sets.

[0657] In one embodiment of this application, where the first information indicates that multiple target resource sets are used for repeated transmission on the same downlink channel through association, the first information further includes at least one of the following:

[0658] The period and first offset of each target resource set in the plurality of target resource sets, wherein at least some of the target resource sets in the plurality of target resource sets have the same period, or at least some of the target resource sets in the plurality of target resource sets have different first offsets;

[0659] The period of at least one target resource set in the plurality of target resource sets, and the second offset of each target resource set in the plurality of target resource sets;

[0660] The period of at least one target resource set in the plurality of target resource sets, the third offset of at least one target resource set in the plurality of target resource sets, and the fourth offset of other target resource sets in the plurality of target resource sets;

[0661] Wherein, the first offset, the second offset, or the third offset is used to indicate the position of the target resource set within the period, and the fourth offset is used to indicate the offset of the other target resource set relative to the third offset of the at least one target resource set.

[0662] In one embodiment of this application, the plurality of target resource sets are associated with the SSB index through a first mapping method, wherein the first mapping method includes at least one of the following: continuous mapping and sequential mapping;

[0663] The continuous mapping refers to establishing associations between the SSB indexes and the multiple target resource sets according to the order of the SSB indexes.

[0664] The sequential mapping refers to establishing associations between all SSB indices and N target resource sets in the plurality of target resource sets, then establishing associations between all SSB indices and M target resource sets in the plurality of target resource sets, repeating this process until all target resource sets in the plurality of target resource sets are mapped, where M and N are positive integers.

[0665] In one embodiment of this application, at least a portion of the bits of the first information are carried by at least one of the following:

[0666] At least some bits of the MIB;

[0667] At least a portion of the bits of the resource block offset of the first control resource set CORESET, the first CORESET being used to schedule the transmission of the physical downlink control channel PDCCH of system information block SIB1;

[0668] A portion of the entries in the table indicated by the first CORESET;

[0669] in,

[0670] At least a portion of the bits in the MIB include at least one of the following:

[0671] At least a portion of the bits of the common subcarrier spacing (subCarrierSpacingCommon) of the MIB;

[0672] At least a portion of the bits of the MIB's synchronization signal block subcarrier offset ssb-SubcarrierOffset;

[0673] At least a portion of the bits in the half-frame bit of the MIB;

[0674] Specific fields defined in the MIB.

[0675] In one embodiment of this application, the first information is associated with some parameters or configurations of at least one of MIB, SIB, and SSB.

[0676] In one embodiment of this application, the first information further includes first time information, which is used to determine at least one of the following: the number of target resource sets, the number of repeated transmissions of the target downlink channel, the resource location of the target resource set, and the candidate transmission location or monitoring location of the target resource set.

[0677] In one embodiment of this application, the first time information includes at least one of the following: the length of the first window, the period of the first window, and the offset of the first window;

[0678] Wherein, the first window satisfies at least one of the following:

[0679] The first window may be periodic or aperiodic;

[0680] The first window is the transmission time interval (TTI) of the target downlink channel;

[0681] The first window is a time window used for transmitting a specific channel;

[0682] The first window is a time window for beam activation or beam start, or a time window for initiating discontinuous cell transmission or discontinuous cell reception, or a time window for transmitting SSB.

[0683] In one embodiment of this application, when multiple target resource sets of the transmission target downlink channel are located in the same first time unit, the first processing unit 1102 is further configured to: perform a first operation if at least one target resource set and the first channel or signal occupied resources at least partially overlap, the first operation including at least one of the following:

[0684] Ignore or skip the first channel or signal;

[0685] Ignore or skip overlapping target resource sets;

[0686] Upon receiving the first channel or signal, perform puncturing or rate matching on resources that overlap with the target resource set;

[0687] When the target resource set receives the target downlink channel, the resources that overlap with the resources occupied by the first channel or signal are punctured or rate matched.

[0688] In one embodiment of this application, the first information indicates at least one of the following: enabling or disabling the target transmission function of a specific downlink channel, and configuring or reconfiguring a plurality of target resource sets that enable the target transmission function of the specific downlink channel.

[0689] In one embodiment of this application, the first information indicates at least one of the following via a first indication method: enabling or disabling the target transmission function of a specific downlink channel, configuring or reconfiguring at least one target resource set that enables the target transmission function of the specific downlink channel;

[0690] The first indication method includes at least one of the following:

[0691] RRC or MIB or SIB or MAC CE indication;

[0692] Specific downlink control information DCI format indication;

[0693] DCI indication carried by a specific target resource set;

[0694] Instructions for neighboring communities;

[0695] Indicator of different systems.

[0696] In one embodiment of this application, when the first information explicitly or implicitly indicates that the target transmission function is enabled, the terminal receives a target downlink channel in at least one target resource set, including:

[0697] The terminal determines multiple target resource sets according to the instructions or protocol agreements of the first information;

[0698] The terminal receives a target downlink channel in at least one of the plurality of target resource sets;

[0699] or,

[0700] When the first information explicitly or implicitly indicates that the target transmission function is disabled, the terminal receives a target downlink channel in at least one target resource set, including:

[0701] The terminal determines a target resource set based on the instructions or protocol agreed upon in the first information;

[0702] The terminal receives a target downlink channel in a target resource set.

[0703] In one embodiment of this application, the first information explicitly or implicitly indicates that the target transmission function is enabled, including at least one of the following:

[0704] The first information indicates a target resource set that has the target transmission function enabled;

[0705] The first information indicates that multiple target resource sets are associated with the same target downlink channel.

[0706] In one embodiment of this application, the first information is carried in at least one of the following ways:

[0707] The target downlink control channel associated with the scheduling target downlink channel;

[0708] The target downlink control channel for scheduling the target downlink channel;

[0709] RRC or MIB or SIB or MAC CE.

[0710] In one embodiment of this application, when the first information is carried by a target downlink control channel that schedules the target downlink channel, the method further includes:

[0711] The terminal determines the resource location of the target resource set of the target downlink channel according to the target downlink control channel indication of the target downlink channel.

[0712] Wherein, the target downlink control channel indication of the scheduling target downlink channel is used to indicate at least one of the following:

[0713] 1) The interval between multiple target resource sets in the target downlink channel. The interval can be the interval between the start or end position of a target resource set and the start or end position of an adjacent target resource set.

[0714] 2) The interval between the target downlink channel and the target downlink control channel. The interval can be the interval between the start or end position of the target downlink channel and the start or end position of the target downlink control channel.

[0715] In one embodiment of this application, when the downlink data channel scheduled by the control channel carried by the target resource set conflicts with the SSB transmission, the number of time slots or repetitions of the downlink data channel is counted according to the available time slots or available repetitions, and the available time slots or available repetitions are determined by at least one of the SSB candidate position, uplink frame configuration, and downlink frame configuration.

[0716] In one embodiment of this application, the target resource set carries a downlink data channel scheduled by the control channel, and the DCI format of the control channel is a first DCI format, wherein the first DCI format satisfies at least one of the following:

[0717] The first DCI format uses a specific RNTI scrambling method;

[0718] The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, and system message indication domain;

[0719] The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, short message indication domain, and TB scaling indication;

[0720] The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, and transport block TB scaling indication;

[0721] The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and system message indication field;

[0722] The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and short message indication field;

[0723] The first DCI format does not include any of the following fields: frequency domain resource allocation field, time domain resource allocation field, MCS field, TB scaling indication, and other fields.

[0724] The first DCI format is used for scheduling SIB PDSCH, or paging PDSCH, or message 2 or message BPDSCH;

[0725] The number of bits for the payload and cyclic redundancy check (CRC) in the first DCI format is no more than 24 bits, 32 bits, or 48 bits.

[0726] The payload bit count of the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

[0727] The number of CRC bits in the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

[0728] In one embodiment of this application, the first information further includes at least one of the following: the number of repetitions of a resource set, the interval between adjacent resource sets, wherein the interval can be the interval between the start or end position of a resource set and the start or end position of an adjacent resource set.

[0729] The apparatus provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG2 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0730] Referring to Figure 12, an embodiment of this application provides a downlink channel transmission device applied to a network-side device, including: a second transceiver unit 1201 and a second processing unit 1202;

[0731] The second transceiver unit 1201 is used to send first information, which is used to determine at least one of the following: whether the target transmission function is enabled; the number of target resource sets; the number of candidate transmission positions or monitoring positions of the target resource sets; the number of repeated transmissions of the target downlink channel; and the resource location of the target resource set.

[0732] The second transceiver unit 1201 is also used to transmit the target downlink channel through at least one target resource set.

[0733] In one embodiment of this application, when a target downlink channel is transmitted using multiple target resource sets of the plurality of target resource sets, the plurality of target resource sets are located in the same first time unit; or, the plurality of target resource sets are located in different first time units.

[0734] Wherein, when the plurality of target resource sets are located in the same first time unit, at least one target resource set in the plurality of target resource sets and the candidate synchronization signal block (SSB) position occupying the second time unit do not overlap, or at least one target resource set in the plurality of target resource sets and the candidate SSB position occupying the second time unit have at least partial overlap;

[0735] Alternatively, if the multiple target resource sets are located in different first time units...

[0736] If at least one target resource set in the plurality of target resource sets is associated with a first SSB index, and the first SSB index is an SSB index in which actual transmission has occurred, the other target resource sets in the plurality of target resource sets are associated with candidate SSB indices that are not in the first SSB index, and the number of candidate SSB indices is at least one; or, the plurality of target resource sets include at least two target resource sets, and the interval between the at least two target resource sets is X third time units, wherein the X third time units include the time interval occupied by one SSB burst, or the time interval occupied by half a system frame, or the time interval occupied by one system frame, where X is a positive integer.

[0737] In one embodiment of this application, when the plurality of target resource sets include: a first target resource set and a second target resource set,

[0738] The starting position of the first target resource set within the first time unit is a specific time position, and the time position is at least one of absolute time, system frame number, time slot index, and symbol index.

[0739] or,

[0740] The first target resource set and the second target resource set are separated by one or more time units, and the time unit is at least one of time slot, symbol, system frame, and millisecond.

[0741] In one embodiment of this application, the first information includes a first parameter, which is used to determine at least one of the following: the resource location of the target resource set, and the candidate transmission location or listening location of the target resource set.

[0742] The first parameter is associated with at least one of the following:

[0743] The target downlink channel;

[0744] At least one repeated transmission of the target downlink channel;

[0745] At least one of the plurality of target resource sets.

[0746] In one embodiment of this application, where the first information indicates that multiple target resource sets are used for repeated transmission on the same downlink channel through association, the first information further includes at least one of the following:

[0747] The period and first offset of each target resource set in the plurality of target resource sets, wherein at least some of the target resource sets in the plurality of target resource sets have the same period, or at least some of the target resource sets in the plurality of target resource sets have different first offsets;

[0748] The period of at least one target resource set in the plurality of target resource sets, and the second offset of each target resource set in the plurality of target resource sets;

[0749] The period of at least one target resource set in the plurality of target resource sets, the third offset of at least one target resource set in the plurality of target resource sets, and the fourth offset of other target resource sets in the plurality of target resource sets;

[0750] Wherein, the first offset, the second offset, or the third offset is used to indicate the position of the target resource set within the period, and the fourth offset is used to indicate the offset of the other target resource set relative to the third offset of the at least one target resource set.

[0751] In one embodiment of this application, at least a portion of the bits of the first information are carried by at least one of the following:

[0752] At least a portion of the bits in the Master Information Block (MIB);

[0753] At least a portion of the bits of the resource block offset of the first control resource set CORESET, the first CORESET being used to schedule the transmission of the physical downlink control channel PDCCH of system information block SIB1;

[0754] A portion of the entries in the table indicated by the first CORESET;

[0755] in,

[0756] At least a portion of the bits in the MIB include at least one of the following:

[0757] At least a portion of the bits of the common subcarrier spacing (subCarrierSpacingCommon) of the MIB;

[0758] At least a portion of the bits of the MIB's synchronization signal block subcarrier offset ssb-SubcarrierOffset;

[0759] At least a portion of the bits in the half-frame bit of the MIB;

[0760] Specific fields defined in the MIB.

[0761] In one embodiment of this application, the first information indicates at least one of the following: enabling or disabling the target transmission function of a specific downlink channel, configuring or reconfiguring at least one target resource set of the target transmission function of the specific downlink channel;

[0762] Wherein, the first information indicates at least one of the following through a first indication method: enabling or disabling the target transmission function of a specific downlink channel, configuring or reconfiguring at least one target resource set of the target transmission function of the specific downlink channel;

[0763] The first indication method includes at least one of the following:

[0764] Radio Resource Control (RRC), MIB, SIB, or Media Access Control (MAC) control element CE indication;

[0765] Specific downlink control information DCI format indication;

[0766] DCI indication carried by a specific target resource set;

[0767] Instructions for neighboring communities;

[0768] Indicator of different systems.

[0769] In one embodiment of this application, the target resource set carries a downlink data channel scheduled by the control channel, and the DCI format of the control channel is a first DCI format, wherein the first DCI format satisfies at least one of the following:

[0770] The first DCI format uses a specific radio network temporary identifier (RNTI) for scrambling;

[0771] The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, and system message indication domain;

[0772] The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, short message indication domain, and TB scaling indication;

[0773] The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, and TB scaling indicator;

[0774] The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and system message indication field;

[0775] The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, short message indication field, and TB scaling indication field;

[0776] The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and TB scaling indicator;

[0777] The first DCI format is used for scheduling SIB PDSCH, or paging PDSCH, or message 2 or message BPDSCH;

[0778] The number of bits for the payload and cyclic redundancy check (CRC) in the first DCI format is no more than 24 bits, 32 bits, or 48 bits.

[0779] The payload bit count of the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

[0780] The number of CRC bits in the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

[0781] The apparatus provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG3 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0782] As shown in Figure 13, this application embodiment also provides a communication device 1300, including a processor 1301 and a memory 1302. The memory 1302 stores a program or instructions that can run on the processor 1301. For example, when the communication device 1300 is a terminal, the program or instructions executed by the processor 1301 implement the various steps of the method embodiment shown in Figure 2 above, and can achieve the same technical effect. When the communication device 1300 is a network-side device, the program or instructions executed by the processor 1301 implement the various steps of the method embodiment shown in Figure 3 above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0783] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiment shown in FIG2. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal may be the communication processing device shown in FIG11. Specifically, FIG14 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0784] The terminal 1400 includes, but is not limited to, at least some of the following components: radio frequency unit 1401, network module 1402, audio output unit 1403, input unit 1404, sensor 1405, display unit 1406, user input unit 1407, interface unit 1408, memory 1409, and processor 1410.

[0785] Those skilled in the art will understand that the terminal 1400 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 1410 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 14 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0786] It should be understood that, in this embodiment, the input unit 1404 may include a graphics processor 14041 and a microphone 14042. The graphics processor 14041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1406 may include a display panel 14061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1407 includes at least one of a touch panel 14071 and other input devices 14072. The touch panel 14071 is also called a touch screen. The touch panel 14071 may include a touch detection device and a touch controller. Other input devices 14072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0787] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1401 can transmit it to the processor 1410 for processing; in addition, the radio frequency unit 1401 can send uplink data to the network-side device. Typically, the radio frequency unit 1401 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0788] The memory 1409 can be used to store software programs or instructions, as well as various data. The memory 1409 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1409 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1409 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0789] Processor 1410 may include one or more processing units; optionally, processor 1410 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1410.

[0790] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment shown in Figure 2, and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0791] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG3. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0792] Specifically, this application embodiment also provides a network-side device, which can be the communication processing device shown in FIG12. As shown in FIG15, the network-side device 1500 includes: an antenna 1501, a radio frequency device 1502, a baseband device 1503, a processor 1504, and a memory 1505. The antenna 1501 is connected to the radio frequency device 1502. In the uplink direction, the radio frequency device 1502 receives information through the antenna 1501 and sends the received information to the baseband device 9003 for processing. In the downlink direction, the baseband device 1503 processes the information to be transmitted and sends it to the radio frequency device 1502, which processes the received information and then transmits it through the antenna 1501.

[0793] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1503, which includes a baseband processor.

[0794] The baseband device 1503 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG15. One of the chips is, for example, a baseband processor, which is connected to the memory 1505 via a bus interface to call the program in the memory 1505 and execute the network device operation shown in the above method embodiment.

[0795] The network-side device may also include a network interface 1506, such as a Common Public Radio Interface (CPRI).

[0796] Specifically, the network-side device 1500 in this application embodiment further includes: instructions or programs stored in memory 1505 and executable on processor 1504. Processor 1504 calls the instructions or programs in memory 1505 to execute the methods executed by each module shown in FIG12 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0797] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment shown in Figure 3, and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0798] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the method embodiments shown in FIG2 or FIG3 above and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0799] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0800] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the method embodiments shown in FIG2 or FIG3 above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0801] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0802] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the method embodiments shown in FIG2 or FIG3 above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0803] This application also provides a wireless communication system, including a terminal and a network-side device. The terminal can be used to perform the steps of the method shown in FIG2 provided in this application embodiment, and the network-side device can be used to perform the steps of the method shown in FIG3 provided in this application embodiment.

[0804] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0805] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0806] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method for transmitting data in a downlink channel, comprising: Based on the first information, the terminal determines at least one of the following: whether the target transmission function is enabled, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmissions of the target downlink channel, and the resource location of the target resource set. The terminal receives a target downlink channel in at least one target resource set; The target downlink channel repeatedly transmits or carries the same content on one or more target resource sets.

2. The method according to claim 1, wherein, The multiple target resource sets are located in the same first time unit; or, the multiple target resource sets are located in different first time units. Wherein, when the plurality of target resource sets are located in the same first time unit, at least one target resource set in the plurality of target resource sets and the candidate synchronization signal block (SSB) position occupying the second time unit do not overlap, or at least one target resource set in the plurality of target resource sets and the candidate SSB position occupying the second time unit have at least partial overlap; Alternatively, if the multiple target resource sets are located in different first time units... When at least one target resource set in the plurality of target resource sets is associated with a first SSB index, and the first SSB index is the SSB index in which the transmission actually occurred, the other target resource sets in the plurality of target resource sets are associated with candidate SSB indices that are not the first SSB index, and the number of candidate SSB indices is at least one. or, The plurality of target resource sets include at least two target resource sets, and the interval between the at least two target resource sets is X third time units. The X third time units include the time interval occupied by one SSB burst, or the time interval occupied by half a system frame, or the time interval occupied by one system frame, where X is a positive integer.

3. The method according to claim 2, wherein, If at least one target resource set in the plurality of target resource sets is associated with a first SSB index, where the first SSB index is the SSB index in which the transmission actually occurred, and other target resource sets in the plurality of target resource sets are associated with candidate SSB indices that are not in the first SSB index, the first information further indicates at least one of the following: The list of non-first SSB indices; The number of non-first SSB indexes; The offset of the non-first SSB index; At least one listening opportunity or transmission opportunity associated with the non-first SSB index is taken as the target resource set of the first SSB index; Wherein, at least one of the list of non-first SSB indexes, the number of non-first SSB indexes, and the offset of the non-first SSB indexes is used to determine the target resource set associated with the first SSB index.

4. The method according to claim 2, wherein, In the case where the plurality of target resource sets include: a first target resource set and a second target resource set, The starting position of the first target resource set within the first time unit is a specific time position, and the time position is at least one of absolute time, system frame number, time slot index, and symbol index. or, The first target resource set and the second target resource set are separated by one or more time units, and the time unit is at least one of time slot, symbol, system frame, and millisecond.

5. The method according to any one of claims 1 to 4, wherein, The first information includes a first parameter, which is used to determine at least one of the following: the resource location of the target resource set, and the candidate transmission location or listening location of the target resource set; The first parameter is obtained through at least one of the following methods: protocol definition, network-side indication; The network-side indication includes at least one of the following: The network side directly indicates the first parameter; The network side indicates at least one set of first parameters from a plurality of sets of first parameters, wherein the plurality of sets of first parameters are defined by the protocol.

6. The method according to claim 5, wherein, The first parameter is associated with at least one of the following: The target downlink channel; At least one repeated transmission of the target downlink channel; At least one of the plurality of target resource sets.

7. The method according to claim 1, wherein, When the first information indicates, through association, that multiple target resource sets are used for repeated transmission on the same downlink channel, the first information further includes at least one of the following: The period and first offset of each target resource set in the plurality of target resource sets, wherein at least some of the target resource sets in the plurality of target resource sets have the same period, or at least some of the target resource sets in the plurality of target resource sets have different first offsets; The period of at least one target resource set in the plurality of target resource sets, and the second offset of each target resource set in the plurality of target resource sets; The period of at least one target resource set in the plurality of target resource sets, the third offset of at least one target resource set in the plurality of target resource sets, and the fourth offset of other target resource sets in the plurality of target resource sets; Wherein, the first offset, the second offset, or the third offset is used to indicate the position of the target resource set within the period, and the fourth offset is used to indicate the offset of the other target resource set relative to the third offset of the at least one target resource set.

8. The method according to claim 1, wherein, The multiple target resource sets are associated with the SSB index through a first mapping method, the first mapping method including at least one of the following: continuous mapping, sequential mapping; The continuous mapping refers to establishing associations between the SSB indexes and the multiple target resource sets according to the order of the SSB indexes. The sequential mapping refers to establishing associations between all SSB indices and N target resource sets in the plurality of target resource sets, then establishing associations between all SSB indices and M target resource sets in the plurality of target resource sets, repeating this process until all target resource sets in the plurality of target resource sets are mapped, where M and N are positive integers.

9. The method according to claim 1, wherein, At least some bits of the first information are carried by at least one of the following: At least a portion of the bits in the Master Information Block (MIB); At least a portion of the bits of the resource block offset of the first control resource set CORESET, the first CORESET being used to schedule the transmission of the physical downlink control channel PDCCH of system information block SIB1; A portion of the entries in the table indicated by the first CORESET; in, At least a portion of the bits in the MIB include at least one of the following: At least a portion of the bits of the common subcarrier spacing (subCarrierSpacingCommon) of the MIB; At least a portion of the bits of the MIB's synchronization signal block subcarrier offset ssb-SubcarrierOffset; At least a portion of the bits in the half-frame bit of the MIB; Specific fields defined in the MIB.

10. The method according to claim 1, wherein, The first information is associated with some parameters or configurations of at least one of MIB, SIB, and SSB.

11. The method according to claim 1, wherein, The first information also includes first time information, which is used to determine at least one of the following: the number of target resource sets, the number of repeated transmissions of the target downlink channel, the resource location of the target resource set, and the candidate transmission location or monitoring location of the target resource set.

12. The method according to claim 11, wherein, The first time information includes at least one of the following: the length of the first window, the period of the first window, and the offset of the first window; Wherein, the first window satisfies at least one of the following: The first window may be periodic or aperiodic; The first window is the transmission time interval (TTI) of the target downlink channel; The first window is a time window used for transmitting a specific channel; The first window is a time window for beam activation or beam start, or a time window for initiating discontinuous cell transmission or discontinuous cell reception, or a time window for transmitting SSB.

13. The method according to claim 2, further comprising: If at least one target resource set and the first channel or signal occupy resources at least partially overlap, the terminal performs a first operation, the first operation including at least one of the following: Ignore or skip the first channel or signal; Ignore or skip overlapping target resource sets; Upon receiving the first channel or signal, perform puncturing or rate matching on resources that overlap with the target resource set; When the target resource set receives the target downlink channel, the resources that overlap with the resources occupied by the first channel or signal are punctured or rate matched.

14. The method according to claim 1, wherein, The first information indicates at least one of the following: enabling or disabling the target transmission function of a specific downlink channel, configuring or reconfiguring at least one target resource set of the target transmission function of a specific downlink channel.

15. The method according to claim 14, wherein, The first information indicates at least one of the following through a first indication method: enabling or disabling the target transmission function of a specific downlink channel, configuring or reconfiguring at least one target resource set of the target transmission function of the specific downlink channel; The first indication method includes at least one of the following: Radio Resource Control (RRC), MIB, SIB, or Media Access Control (MAC) control element CE indication; Specific downlink control information DCI format indication; DCI indication carried by a specific target resource set; Instructions for neighboring communities; Indicator of different systems.

16. The method of claim 14, wherein, When the first information explicitly or implicitly indicates that the target transmission function is enabled, the terminal receives a target downlink channel in at least one target resource set, including: The terminal determines multiple target resource sets according to the instructions or protocol agreements of the first information; The terminal receives a target downlink channel in at least one of the plurality of target resource sets; or, When the first information explicitly or implicitly indicates that the target transmission function is disabled, the terminal receives a target downlink channel in at least one target resource set, including: The terminal determines a target resource set based on the instructions or protocol agreed upon in the first information; The terminal receives a target downlink channel in a target resource set.

17. The method according to claim 16, wherein, The first information explicitly or implicitly indicates that the target transmission function is enabled, including at least one of the following: The first information indicates a target resource set that has the target transmission function enabled; The first information indicates that multiple target resource sets are associated with the same target downlink channel.

18. The method according to claim 1, wherein, The first information is carried in at least one of the following ways: The target downlink control channel associated with the scheduling target downlink channel; The target downlink control channel for scheduling the target downlink channel; RRC or MIB or SIB or MAC CE.

19. The method according to claim 18, wherein, When the first information is carried by the target downlink control channel of the scheduling target downlink channel, the method further includes: The terminal determines the resource location of the target resource set of the target downlink channel according to the target downlink control channel indication of the target downlink channel. Wherein, the target downlink control channel indication of the scheduling target downlink channel is used to indicate at least one of the following: The interval between multiple target resource sets in the target downlink channel; The interval between the target downlink channel and the target downlink control channel.

20. The method according to claim 1, wherein, In the event of a conflict between the downlink data channel scheduled by the control channel carried by the target resource set and the SSB transmission, the number of time slots or repetitions of the downlink data channel is counted according to the available time slots or available repetitions, which are determined by at least one of the SSB candidate position, uplink frame configuration, and downlink frame configuration.

21. The method according to claim 1, wherein, The target resource set carries downlink data channels scheduled by the control channel, and the DCI format of the control channel is a first DCI format, which satisfies at least one of the following: The first DCI format uses a specific radio network temporary identifier (RNTI) for scrambling; The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, modulation and coding strategy (MCS) domain, system message indication domain, short message indication domain, and transport block (TB) scaling indication. The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and system message indication field; The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, short message indication field, and TB scaling indication field; The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and TB scaling indicator; The first DCI format is used to schedule the SIB Physical Downlink Shared Channel (PDSCH), or to paging the PDSCH, or to message 2 or message B PDSCH; The number of bits for the payload and cyclic redundancy check (CRC) in the first DCI format is no more than 24 bits, 32 bits, or 48 bits. The payload bit count of the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits. The number of CRC bits in the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

22. The method according to claim 1, wherein, The first information also includes at least one of the following: the number of times the resource set is repeated, and the interval between adjacent resource sets.

23. A method for transmitting data in a downlink channel, comprising: The network-side device sends first information, which is used to determine at least one of the following: whether to enable the target transmission function; The number of target resource sets; The number of candidate transmission locations or monitoring locations in the target resource set; the number of repeated transmissions in the target downlink channel; The location of resources in the target resource set; The network-side device transmits the target downlink channel through at least one target resource set.

24. The method according to claim 23, wherein, The multiple target resource sets are located in the same first time unit; or, the multiple target resource sets are located in different first time units. Wherein, when the plurality of target resource sets are located in the same first time unit, at least one target resource set in the plurality of target resource sets and the candidate synchronization signal block (SSB) position occupying the second time unit do not overlap, or at least one target resource set in the plurality of target resource sets and the candidate SSB position occupying the second time unit have at least partial overlap; Alternatively, if the multiple target resource sets are located in different first time units... If at least one target resource set in the plurality of target resource sets is associated with a first SSB index, and the first SSB index is an SSB index in which actual transmission has occurred, the other target resource sets in the plurality of target resource sets are associated with candidate SSB indices that are not in the first SSB index, and the number of candidate SSB indices is at least one; or, the plurality of target resource sets include at least two target resource sets, and the interval between the at least two target resource sets is X third time units, wherein the X third time units include the time interval occupied by one SSB burst, or the time interval occupied by half a system frame, or the time interval occupied by one system frame, where X is a positive integer.

25. The method according to claim 24, wherein, In the case of multiple target resource sets, including: a first target resource set and a second target resource set. The starting position of the first target resource set within the first time unit is a specific time position, and the time position is at least one of absolute time, system frame number, time slot index, and symbol index. or, The first target resource set and the second target resource set are separated by one or more time units, and the time unit is at least one of time slot, symbol, system frame, and millisecond.

26. The method according to any one of claims 23 to 25, wherein, The first information includes a first parameter, which is used to determine at least one of the following: the resource location of the target resource set, and the candidate transmission location or listening location of the target resource set; The first parameter is associated with at least one of the following: The target downlink channel; At least one repeated transmission of the target downlink channel; At least one of multiple target resource sets.

27. The method according to claim 23, wherein, When the first information indicates, through association, that multiple target resource sets are used for repeated transmission on the same downlink channel, the first information further includes at least one of the following: The period and first offset of each target resource set in the plurality of target resource sets, wherein at least some of the target resource sets in the plurality of target resource sets have the same period, or at least some of the target resource sets in the plurality of target resource sets have different first offsets; The period of at least one target resource set in the plurality of target resource sets, and the second offset of each target resource set in the plurality of target resource sets; The period of at least one target resource set in the plurality of target resource sets, the third offset of at least one target resource set in the plurality of target resource sets, and the fourth offset of other target resource sets in the plurality of target resource sets; Wherein, the first offset, the second offset, or the third offset is used to indicate the position of the target resource set within the period, and the fourth offset is used to indicate the offset of the other target resource set relative to the third offset of the at least one target resource set.

28. The method according to claim 23, wherein, At least some bits of the first information are carried by at least one of the following: At least some bits of the MIB; At least a portion of the bits of the resource block offset of the first CORESET, the first CORESET being used to schedule the transmission of the PDCCH of SIB1; A portion of the entries in the table indicated by the first CORESET; in, At least a portion of the bits in the MIB include at least one of the following: At least a portion of the bits of the subCarrierSpacingCommon of the MIB; At least a portion of the bits of the MIB's ssb-SubcarrierOffset; At least a portion of the bits of the half-frame bit in the MIB; Specific fields defined in the MIB.

29. The method according to claim 23, wherein, The first information indicates at least one of the following: enabling or disabling the target transmission function of a specific downlink channel, configuring or reconfiguring at least one target resource set of the target transmission function of a specific downlink channel; Wherein, the first information indicates at least one of the following through a first indication method: enabling or disabling the target transmission function of a specific downlink channel, configuring or reconfiguring at least one target resource set of the target transmission function of the specific downlink channel; The first indication method includes at least one of the following: Radio Resource Control (RRC), MIB, SIB, or Media Access Control (MAC) control element CE indication; Specific downlink control information DCI format indication; DCI indication carried by a specific target resource set; Instructions for neighboring communities; Indicator of different systems.

30. The method according to claim 23, wherein, The target resource set carries downlink data channels scheduled by the control channel, and the DCI format of the control channel is a first DCI format, which satisfies at least one of the following: The first DCI format uses a specific radio network temporary identifier (RNTI) for scrambling; The first DCI format includes at least one of the following: frequency domain resource allocation domain, time domain resource allocation domain, MCS domain, system message indication domain, short message indication domain, and TB scaling indication; The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and system message indication field; The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, short message indication field, and TB scaling indication field; The first DCI format does not include any fields other than: frequency domain resource allocation field, time domain resource allocation field, MCS field, and TB scaling indicator; The first DCI format is used for scheduling SIB PDSCH, or paging PDSCH, or message 2 or message BPDSCH; The number of bits for the payload and cyclic redundancy check (CRC) in the first DCI format is no more than 24 bits, 32 bits, or 48 bits. The payload bit count of the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits. The number of CRC bits in the first DCI format is 8 bits, or 12 bits, or 14 bits, or 16 bits, or 18 bits, or 20 bits, or 24 bits.

31. A transmission apparatus for a downlink channel, comprising: First transceiver unit and first processing unit; The first processing unit is configured to determine at least one of the following based on the first information: whether the target transmission function is enabled, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmissions of the target downlink channel, and the resource location of the target resource set. The first transceiver unit is used to receive a target downlink channel in at least one target resource set; The target downlink channel repeatedly transmits or carries the same content on multiple target resource sets.

32. The apparatus according to claim 31, wherein, The multiple target resource sets are located in the same first time unit; or, the multiple target resource sets are located in different first time units. Wherein, when the plurality of target resource sets are located in the same first time unit, at least one target resource set in the plurality of target resource sets and the candidate synchronization signal block (SSB) position occupying the second time unit do not overlap, or at least one target resource set in the plurality of target resource sets and the candidate SSB position occupying the second time unit have at least partial overlap; Alternatively, if the multiple target resource sets are located in different first time units... When at least one target resource set in the plurality of target resource sets is associated with a first SSB index, and the first SSB index is the SSB index in which the transmission actually occurred, the other target resource sets in the plurality of target resource sets are associated with candidate SSB indices that are not the first SSB index, and the number of candidate SSB indices is at least one. or, The plurality of target resource sets include at least two target resource sets, and the interval between the at least two target resource sets is X third time units. The X third time units include the time interval occupied by one SSB burst, or the time interval occupied by half a system frame, or the time interval occupied by one system frame, where X is a positive integer.

33. A transmission apparatus for a downlink channel, comprising: Second transceiver unit and second processing unit; The second transceiver unit is used to send first information, which is used to determine at least one of the following: whether the target transmission function is enabled; the number of target resource sets; the number of candidate transmission positions or monitoring positions of the target resource sets; and the number of repeated transmissions of the target downlink channel. The location of resources in the target resource set; The second transceiver unit is also configured to transmit the target downlink channel through at least one target resource set.

34. The apparatus according to claim 33, wherein, Multiple target resource sets are located in the same first time unit; or, multiple target resource sets are located in different first time units. Wherein, when multiple target resource sets are located in the same first time unit, at least one target resource set in the multiple target resource sets and the candidate synchronization signal block (SSB) position occupying the second time unit do not overlap, or at least one target resource set in the multiple target resource sets and the candidate SSB position occupying the second time unit have at least partial overlap. Alternatively, if the multiple target resource sets are located in different first time units... When at least one target resource set in the plurality of target resource sets is associated with a first SSB index, and the first SSB index is the SSB index in which the transmission actually occurred, the other target resource sets in the plurality of target resource sets are associated with candidate SSB indices that are not the first SSB index, and the number of candidate SSB indices is at least one. or, The plurality of target resource sets include at least two target resource sets, and the interval between the at least two target resource sets is X third time units. The X third time units include the time interval occupied by one SSB burst, or the time interval occupied by half a system frame, or the time interval occupied by one system frame, where X is a positive integer.

35. A terminal comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as claimed in any one of claims 1 to 22.

36. A network-side device comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as claimed in any one of claims 23 to 30.

37. A readable storage medium on which a program or instructions are stored, wherein the program or instructions, when executed by a processor, implement the steps of the method as claimed in any one of claims 1 to 30.

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