Physical Downlink Control Channel Repetition Transmission Method, Apparatus, and User Equipment

Abstract

The present application discloses a physical downlink control channel repeated transmission method, apparatus, and user equipment. In an embodiment of the PDCCH repeated transmission method of the present application, the method includes: when a UE receives a repeatedly transmitted PDCCH, the UE determines X (X is an integer greater than 1) repeatedly transmitted PDCCH candidates; and the UE performs an overbooking rule based on an assumed first blind decoding number of the X PDCCH candidates, or the UE performs a target operation based on a time domain resource of a target PDCCH candidate, where a search space corresponding to the X PDCCH candidates is associated, and the target PDCCH candidate is a PDCCH candidate among the X PDCCH candidates that satisfies a predetermined condition.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application filed with the State Intellectual Property Office on April 2, 2021, bearing application number 202110363014.X and entitled "Physical downlink control channel repeat transmission method, apparatus, and user equipment," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of communications technology, and more particularly to a method, apparatus and user equipment for repeatedly transmitting a physical downlink control channel (PDCCH). [Background technology]

[0003] In order to improve the transmission performance of PDCCH, 5G NR introduces a PDCCH repeat transmission scheme in Release 17, where different repeat transmission occasions may be from different transmission points TRP, and when the transmission by one of the TRPs is blocked, the PDCCH transmission on another TRP can be received by the terminal, further improving the reliability of the PDCCH. When the terminal detects the repeatedly transmitted PDCCH, it adopts different receiver algorithms, for example, in addition to attempting to demodulate the PDCCH in each PDCCH repeat transmission occasion, the terminal also integrates the soft bit information on all occasions and performs one extra decoding. Different receiver algorithms affect the blind decoding times and also affect the overbooking calculation rules. In order to ensure the consistency of the understanding of transmission and reception, the terminal may report the demodulation behavior and the assumed blind decoding times to the base station. In addition, when the PDCCH carries the BWP switching indication signaling, the switching start time generally refers to the slot where the PDCCH is located, but when the PDCCH adopts repeated transmission, the time it takes for the terminal to successfully detect the PDCCH increases, so the switching time also needs to be redesigned. In addition, when the terminal receives a PDCCH carrying the BWP switching indication signaling or semi-persistent PDSCH scheduling release signaling, the PDCCH reports a hybrid automatic repeat request acknowledgement (HARQ-ACK) in response to PDCCH decoding to the base station after the PDCCH finishes N symbols, and when the PDCCH adopts repeated transmission, the reference PDCCH candidate needs to be redefined. Finally, the PDCCH repeated transmission may break the conventional scheduling rules in some scheduling scenarios, such as whether the scheduled PDSCH can be earlier than the late candidate on the time domain of the PDCCH repeated transmission, in order to be supported, some rule determination needs to be considered. Summary of the Invention [Problem to be solved by the invention]

[0004] The embodiments of the present application provide a PDCCH repetitive transmission method, apparatus and user equipment, which can solve the problem that the reliability of the operation performed by the UE is relatively low. [Means for solving the problem]

[0005] According to a first aspect, there is provided a PDCCH repeated transmission method for a UE, the method including: when the UE receives a repeatedly transmitted PDCCH, the UE determines X (X is an integer greater than 1) repeatedly transmitted PDCCH candidates; and the UE executes an overbooking rule based on an assumed first blind decoding number of the X PDCCH candidates, or the UE executes a target operation based on a time domain resource of a target PDCCH candidate, where a search space corresponding to the X PDCCH candidates is associated, and the target PDCCH candidate is a PDCCH candidate among the X PDCCH candidates that satisfies a predetermined condition.

[0006] According to a second aspect, a PDCCH repeated transmission device is provided, which includes a determining module and an executing module, where the determining module is used to determine X (X is an integer greater than 1) PDCCH candidates repeatedly transmitted when receiving a repeatedly transmitted PDCCH. The executing module is used to execute an overbooking rule according to a first assumed blind decoding number of the X PDCCH candidates determined by the determining module, or execute a target operation according to a time domain resource of a target PDCCH candidate, where a search space corresponding to the X PDCCH candidates is associated, and the target PDCCH candidate is a PDCCH candidate among the X PDCCH candidates that satisfies a predetermined condition.

[0007] According to a third aspect, there is provided a PDCCH repeated transmission method for use in a network side device, the method including: the network side device sending X repeatedly transmitted PDCCH candidates to a UE; and the network side device sending a hypothesized first blind decoding number of the X PDCCH candidates to the UE.

[0008] According to a fourth aspect, a PDCCH repeated transmission device is provided, the PDCCH repeated transmission device includes a transmitting module, where the transmitting module is used for transmitting the repeatedly transmitted X PDCCH candidates to a UE, and transmitting a hypothesized first blind decoding number of the X PDCCH candidates to the UE.

[0009] According to a fifth aspect, there is provided a terminal comprising a processor, a memory and a program or instructions stored in the memory and operable to run on the processor, the program or instructions being operable when executed by the processor to implement the steps of the method of the first aspect.

[0010] According to a sixth aspect, a terminal is provided, the terminal including: a processor and a communication interface, where the processor is used for, when a UE receives a repeatedly transmitted PDCCH, the UE determines X (X is an integer greater than 1) repeatedly transmitted PDCCH candidates, and the UE performs an overbooking rule based on an assumed first blind decoding number of the X PDCCH candidates, or the UE performs a target operation based on a time domain resource of a target PDCCH candidate, where a search space corresponding to the X PDCCH candidates is associated, and the target PDCCH candidate is a PDCCH candidate among the X PDCCH candidates that satisfies a predetermined condition.

[0011] According to a seventh aspect, there is provided a network side device comprising a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, the program or instructions, when executed by the processor, realising the steps of the method according to the first aspect.

[0012] According to an eighth aspect, there is provided a network side equipment, the network side equipment including: a processor and a communication interface, where the communication interface is used for sending X repeatedly transmitted PDCCH candidates to a UE, and sending a hypothesized first blind decoding number of the X PDCCH candidates to the UE.

[0013] According to a ninth aspect, there is provided a readable storage medium having a program or instructions stored on the readable storage medium, the program or instructions being operable, when executed by a processor, to effectuate steps of the method according to the first aspect or to effectuate steps of the method according to the third aspect.

[0014] According to a tenth aspect, there is provided a chip, the chip including a processor and a communication interface, the communication interface coupled to the processor, the processor running a program or instructions to implement the method of the first aspect or used to implement the method of the third aspect.

[0015] According to an eleventh aspect, there is provided a computer program / program product, the computer program / program product being stored in a non-volatile storage medium, and the program / program product being executed by at least one processor to realize the steps of the PDCCH repetitive transmission method described in the first aspect. Effect of the Invention

[0016] In the embodiment of the present application, when the UE receives the repeatedly transmitted PDCCH, the UE can determine X PDCCH candidates, and the search space corresponding to the X PDCCH candidates is associated with the X PDCCH candidates, and the UE executes the overbooking rule based on the assumed first blind decoding number of the X PDCCH candidates, or the UE executes the target operation based on the time domain resource of the target PDCCH candidate. The UE executes the overbooking rule based on the assumed first blind decoding number of the X PDCCH candidates, thereby avoiding the situation where the number of blind decoding times of the X PDCCH candidates exceeds the maximum blind decoding number of the UE, and thus the reliability of the execution of the blind decoding by the UE can be improved; or the UE executes the target operation based on the time domain resource of the PDCCH candidate that satisfies a predetermined condition among the X PDCCH candidates, thereby avoiding the situation where the UE cannot determine the time after the reservation time to execute the target operation, thereby improving the reliability of the execution of the operation. In this way, the reliability of the execution of the operation by the UE can be improved. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present application; [Diagram 2] 1 is a schematic diagram of a PDCCH repetition transmission method according to an embodiment of the present application; [Diagram 3] FIG. 1 is a schematic diagram of a BWP switching process according to an embodiment of the present application. [Figure 4] FIG. 2 is a schematic diagram of a BWP switching process according to an embodiment of the present application; [Diagram 5] FIG. 2 is a schematic diagram of transmitting decision information according to an embodiment of the present application; [Figure 6] FIG. 2 is a schematic diagram of a first parameter value according to an embodiment of the present application; [Figure 7]FIG. 2 is a second schematic diagram of a first parameter value according to an embodiment of the present application. [Figure 8] 1 is a schematic diagram of a PDCCH repetitive transmission device according to an embodiment of the present application. [Figure 9] 2 is a second schematic diagram of a PDCCH repetitive transmission device according to an embodiment of the present application. [Figure 10] 1 is a schematic diagram of a communication device according to an embodiment of the present application; [Figure 11] 2 is a schematic diagram of a hardware structure of a UE according to an embodiment of the present application; [Figure 12] FIG. 2 is a schematic diagram of the hardware structure of a network side device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The following clearly describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application are all within the scope of protection of the present application.

[0019] The following describes terms related to the embodiments of the present application.

[0020] 1. Control resource set (CORESET) In the New Radio (NR) system, downlink control signaling introduces CORESET, where one CORESET defines the location of frequency domain resources and continuous time domain resources that a downlink channel (e.g., a Physical Downlink Control Channel (PDCCH)) may occupy.

[0021] 2. Search space In an NR system, the search space is used to instruct a user equipment (UE) to monitor the PDCCH at some monitoring occasions (and some PDCCH candidates at the corresponding monitoring occasions) on a time domain resource.

[0022] 3. Blind Decoding (BD) In an NR system, after a network side device configures a PDCCH transmission for a UE, the UE may not be able to determine the number, size, positions, etc. of control channel elements (CCEs) occupied by the PDCCH. Therefore, the UE needs to determine multiple PDCCH candidates based on at least one CORESET and at least two search spaces (one CORESET is associated with two search spaces) configured by the network side device, and decode each PDCCH candidate to receive information carried on the PDCCH.

[0023] 4. Blind decoding capability The blind decoding capability information is capability information reported by the UE to the network side device, and the blind decoding capability information may include any one of the maximum blind decoding number of the UE and whether the UE supports the capability of performing soft bit integration.

[0024] 5. Maximum blind decoding times for UE The maximum blind decoding number of the UE, i.e., the blind decoding capability of the UE, is used to indicate the decoding capability of the UE for a polar code of a downlink channel (e.g., PDCCH). Specifically, it may be used to indicate the maximum number of decodings that the UE can support within one slot or one period (e.g., one span).

[0025] 6. BWP switching process When the UE receives downlink control information (DCI) carried on the PDCCH in one slot, and this DCI carries BWP switching command signaling, the UE determines the BWP switching reservation time (T BWPswitchDelay ) slots, the UE can switch to a new BWP. From the start of transmission of this slot to the time the UE switches to the new BWP, the UE cannot receive or transmit any signal.

[0026] 7. Other terms The terms "first," "second," etc. in the specification and claims of the present application are intended to distinguish between similar objects and are not intended to describe a particular order or sequence. It is to be understood that the terms so used are interchangeable where appropriate, such that the embodiments of the present application may be performed in an order other than that shown or described herein, and that the objects distinguished by "first" and "second" are generally of the same type and do not limit the number of objects, e.g., the first object may be one or more. It is to be noted that "and / or" in the specification and claims represents at least one of the objects connected, and the character " / " generally represents an "or" relationship between the related objects.

[0027] In the following, a communication system relating to a transmission method according to an embodiment of the present application will be described.

[0028] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are always used interchangeably, and the techniques described may be used in the above-mentioned systems and radio technologies, or in other systems and radio technologies. Although the following description describes a New Radio (NR) system for illustrative purposes and uses NR terminology in most of the description below, these techniques may be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

[0029] FIG. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer (or called a notebook computer), a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc., and the wearable device includes a smart watch, a bracelet, an earphone, a pair of glasses, etc. It should be noted that the specific type of the terminal 11 in the embodiment of the present application is not limited. The network side equipment 12 may be a base station or a core network, where the base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or any other suitable term in the art, and as long as the same technical effect is achieved, the base station is not limited to a specific technical term, and it should be explained that in the embodiments of this application, only a base station in an NR system is taken as an example, but the specific type of the base station is not limited.

[0030] In the following, the PDCCH repetitive transmission according to the embodiments of the present application will be described in detail through several embodiments and application scenarios thereof in conjunction with the drawings.

[0031] 2 shows a flow chart of PDCCH repeat transmission according to an embodiment of the present application. As shown in FIG. 2, PDCCH repeat transmission according to an embodiment of the present application may include the following steps 101 and 102 (or step 103).

[0032] Step 101: when a PDCCH repetitive transmission device receives a repeatedly transmitted PDCCH, the PDCCH repetitive transmission device determines X repeatedly transmitted PDCCH candidates.

[0033] In the embodiments of the present application, X is an integer greater than one.

[0034] Optionally, in an embodiment of the present application, the PDCCH repeat transmission device may receive higher layer signaling from a network side device, the higher layer signaling including Radio Resource Control (RRC) signaling, and the RRC signaling including a CORESET and at least two search spaces configured by the network side device for the PDCCH repeat transmission device, so that the PDCCH repeat transmission device can determine the X PDCCH candidates to be repeatedly transmitted based on the CORESET group and the at least one search space.

[0035] Optionally, in an embodiment of the present application, the CORESET corresponds to at least one Transmission Reception Point (TRP).

[0036] In the embodiment of the present application, a search space corresponding to the X PDCCH candidates is associated.

[0037] Optionally, in an embodiment of the present application, each search space among the at least two search spaces associated with a CORESET may correspond to one PDCCH candidate.

[0038] Optionally, in an embodiment of the present application, M search space related groups are transmitted in the same transmission unit, and each search space related group includes X search spaces, and the X search spaces correspond one-to-one to the X PDCCH candidates; Each search space-related group has K candidate PDCCH sets, each candidate PDCCH set includes X PDCCH candidates; The total number of candidate PDCCH sets transmitted in the same transmission unit is H, Here, the value of M is determined by one of a preset value and a value determined by the network side equipment based on the capability reported by the PDCCH repeat transmission device, the value of K is determined by one of a preset value and a value determined by the network side equipment based on the capability reported by the PDCCH repeat transmission device, and the value of H is determined by one of a preset value and a value determined by the network side equipment based on the capability reported by the PDCCH repeat transmission device.

[0039] Further optionally, in an embodiment of the present application, the transmission unit may include any one of a time-domain transmission symbol (Orthogonal Frequency Division Multiplexing (OFDM) symbol), a slot, a mini-slot, a subframe, a radio frame, etc.

[0040] Optionally, in the embodiment of the present application, the PDCCH repetitive transmission device may determine X PDCCH candidates based on the CORESET and at least two search spaces.

[0041] It should be noted that for the description of the PDCCH repetitive transmission device determining the PDCCH based on the CORESET and the search space, reference can be made to the specific description in the related art, and the embodiment of this application will not be further described here.

[0042] Step 102, the PDCCH repetitive transmission device executes an overbooking rule based on the assumed first blind decoding times of the X PDCCH candidates.

[0043] As can be understood, the PDCCH repeat transmission device executing the overbooking rule based on the assumed first blind decoding number of X PDCCH candidates may be considered as the PDCCH repeat transmission device determining the blind decoding number of the repeatedly transmitted PDCCH based on the overbooking rule.

[0044] Step 103, the PDCCH repetition transmission device performs a target operation according to the time domain resource of the target PDCCH candidate.

[0045] In an embodiment of the present application, the target PDCCH candidate is a PDCCH candidate that satisfies a predetermined condition among the X PDCCH candidates.

[0046] Optionally, in an embodiment of the present application, the preset condition is: the last PDCCH candidate on the time domain resource; a first PDCCH candidate on the time domain resource; the PDCCH candidate with the highest associated search space index value; the PDCCH candidate with the smallest associated search space index value; the PDCCH candidate with the highest index value of the associated control resource set; and the PDCCH candidate with the smallest index value of the associated control resource set.

[0047] Optionally, in the embodiment of the present application, the target operation may include any one of: switching BWP, sending decision information, and determining a scheduling pattern of other transmissions.

[0048] According to the PDCCH repeat transmission method of the embodiment of the present application, when a PDCCH repeat transmission device receives a repeatedly transmitted PDCCH, the PDCCH repeat transmission device can determine X PDCCH candidates, and corresponding search spaces are associated with the X PDCCH candidates, and executes an overbooking rule based on the assumed first blind decoding times of the X PDCCH candidates, or the PDCCH repeat transmission device performs a target operation based on the time domain resource of a target PDCCH candidate. The PDCCH repeat transmission device executes an overbooking rule based on the assumed first blind decoding number of X PDCCH candidates, thereby avoiding a situation in which the number of blind decodings of the X PDCCH candidates exceeds the maximum blind decoding number of the PDCCH repeat transmission device, and thus the reliability of the execution of blind decoding by the PDCCH repeat transmission device can be improved, or the PDCCH repeat transmission device executes a target operation based on a time domain resource of a PDCCH candidate that satisfies a predetermined condition among the X PDCCH candidates, thereby avoiding a situation in which the PDCCH repeat transmission device cannot determine after what time of the reservation time to execute the target operation, thereby improving the reliability of the execution of the operation. In this way, the reliability of the execution of the operation by the PDCCH repeat transmission device can be improved.

[0049] Optionally, in the embodiment of the present application, the first blind decoding number is: The number of blind decodings for demodulating the repeatedly transmitted PDCCH, which is assumed by default, and The number of blind decodings for demodulating the repeatedly transmitted PDCCH reported by the PDCCH repeat transmission device; the number of blind decodings determined by the network side device based on the number of blind decodings for demodulating the repeatedly transmitted PDCCH reported by the PDCCH repeat transmission device.

[0050] Further alternatively, in an embodiment of the present application, when the first blind decoding number is determined by a blind decoding number determined by the network side equipment based on the blind decoding number of times for demodulating the repeatedly transmitted PDCCH reported by the PDCCH repeat transmission device, the PDCCH repeat transmission device may report the blind decoding number of times for demodulating the repeatedly transmitted PDCCH to the network side equipment. In this way, the network side equipment re-determines one blind decoding number based on the reported blind decoding number of times for demodulating the repeatedly transmitted PDCCH, and the PDCCH repeat transmission device can execute the overbooking rule according to the re-determined one blind decoding number.

[0051] As can be seen, if a PDCCH repetition is configured in a PDCCH repetition transmission device, the PDCCH repetition is transmitted via at least two PDCCH candidates, and an overbooking rule is implemented based on a default assumed capability to demodulate the PDCCH repetition or a reported capability to demodulate the PDCCH repetition by the PDCCH repetition transmission device.

[0052] Here, the number of blind decoding BDs assumed by default may be 2 or 3, and the PDCCH repetition transmission device reports its ability to demodulate the PDCCH repetition (this ability includes the number of BDs and / or the ability of whether to perform soft bit integration).

[0053] Here, even if the PDCCH repeat transmission device reports one blind decoding number, the network side equipment can instruct the PDCCH repeat transmission device by signaling to execute an overbooking rule according to another blind decoding number assumption, where this other blind decoding number is less than or equal to this one blind decoding number.

[0054] The following takes an example to describe how a PDCCH repetitive transmission device implements an overbooking rule based on the assumed first blind decoding times of X PDCCH candidates.

[0055] Optionally, in the embodiment of the present application, the above step 102 may be specifically realized by the following step 102a.

[0056] Step 102a: the PDCCH repetitive transmission device executes an overbooking rule based on a first blind decoding number according to a predetermined rule.

[0057] Optionally, in one possible implementation of the embodiment of the present application, the predetermined rule is: Each PDCCH candidate among the X PDCCH candidates is associated with a different search space; The PDCCH candidates associated with the search space having a small index value are calculated according to a third blind decoding number, and the PDCCH candidates associated with the search space having a large index value are calculated according to a fourth blind decoding number; Here, the fourth blind decoding number is equal to or greater than the third blind decoding number.

[0058] Further optionally, in the embodiment of the present application, the index value may specifically be an ID value.

[0059] For example, when the PDCCH repetition follows the 3 BD assumption, when the PDCCH repetition number is 2 and each PDCCH candidate is associated with a different search space, the PDCCH candidate associated with a smaller search space ID is calculated according to 1 BD, and the PDCCH candidate associated with a larger search space ID is calculated according to 2 BD.

[0060] Optionally, in an embodiment of the present application, if each PDCCH candidate of the X PDCCH candidates is transmitted in the same transmission unit, and the X PDCCH candidates do not completely overlap on the time domain resource, the last symbol of a PDCCH candidate associated with a search space having a larger index value is later than the last symbol of a PDCCH candidate associated with a search space having a smaller index value; Or, the first symbol of a PDCCH candidate associated with a search space having a larger index value may be later than the first symbol of a PDCCH candidate associated with a search space having a smaller index value.

[0061] For example, if both PDCCH repetitions are in the same transmission unit (e.g., slot) and two PDCCH candidates do not completely overlap in the time domain, the last symbol of the PDCCH candidate associated with the larger search space ID is later than the last symbol of the PDCCH candidate associated with the smaller search space ID, or the first symbol of the PDCCH candidate associated with the larger search space ID is later than the first symbol of the PDCCH candidate associated with the smaller search space ID.

[0062] Optionally, in another possible implementation of the embodiment of the present application, the predetermined rule is: When the first blind decoding number is equal to X, each PDCCH candidate is calculated by one blind decoding, and if the Xth blind decoding exceeds the blind decoding capability reported by the PDCCH repeated transmission device, the repeatedly transmitted PDCCH is calculated by X-1 times blind decoding; When the first blind decoding number is equal to X, each PDCCH candidate is calculated by one blind decoding, and if the Xth blind decoding does not exceed the blind decoding capability reported by the PDCCH repeated transmission device, the repeatedly transmitted PDCCH is calculated by Xth blind decoding, and the Xth blind decoding is a combination of soft bit information corresponding to the X PDCCH candidates, and blind decoding is performed on the combined soft bit information.

[0063] Here, the blind decoding performed on the combined soft bit information is associated with a first search space, which is a predetermined specific search space or a specific search space configured by a network side device, and this first search space is used to blind decode the combined soft bit information.

[0064] For example, when PDCCH repetition calculates the overbooking rule according to three BD assumptions, each PDCCH candidate is calculated according to one BD. If the third BD does not exceed the blind decoding capability reported by the PDCCH repetition transmission device, the repeatedly transmitted PDCCH is calculated by three blind decodings, and the third blind decoding is performed by combining soft bit information corresponding to X PDCCH candidates and performing blind decoding on the combined soft bit information.

[0065] Here, the first search space may be a virtual search space not indicated by higher layer signaling. The priority of the first search space in the overbooking rule is assumed to be the lowest. Here, the blind decoding ability of the CCE is not calculated on the first search space.

[0066] Optionally, in the embodiment of the present application, the above step 102 may be specifically realized by the following step 102b.

[0067] Step 102b: if any one of the X PDCCH candidates satisfies a first condition, the PDCCH repeat transmission device determines that the transmission behavior of the X PDCCH candidates is a repeat transmission behavior, and executes an overbooking rule based on the assumed first blind decoding number of the X PDCCH candidates.

[0068] In an embodiment of the present application, the first condition is that the time-frequency resource of any one of the PDCCH candidates conflicts with the target time-frequency resource.

[0069] Optionally, in an embodiment of the present application, the target time-frequency resource includes any one of a time-frequency resource of a synchronization signal block SSB, a time-frequency resource of a specific reference signal CRS of a cell configured by a higher layer, a time-frequency resource for indicating other physical downlink shared channel PDSCH rate matching, and an unavailable time-frequency resource configured by a higher layer.

[0070] As can be seen, the PDCCH repeat transmission device still assumes that the PDCCH is a repeat transmission behavior, and the overbooking rule of the PDCCH repeat transmission device is not affected by time-frequency resource collision.

[0071] Optionally, in the embodiment of the present application, after the above step 102, the PDCCH repeated transmission according to the embodiment of the present application may further include the following step 201:

[0072] Step 201, if a second condition is met, the PDCCH repetitive transmission device monitors X PDCCH candidates and Y PDCCH candidates.

[0073] Here, the second condition includes that the PDCCH repeat transmission device reports target capability, that Y PDCCH candidates are not used for PDCCH repeat transmission, that the receiving beams associated with the Y PDCCH candidates are different, and that the time domain resources of the Y PDCCHs overlap, and the target capability is the capability of the PDCCH repeat transmission device to simultaneously receive PDCCH candidates associated with different beams.

[0074] As can be seen, when the PDCCH repetition transmission device reports its ability to simultaneously receive PDCCH repetitions, and the network side device also configures a number Y of PDCCH candidates that are not used for the PDCCH repetitions, where the Y PDCCH candidates are associated with different QCL-type D, and the Y PDCCHs overlap on time-frequency resources, then the PDCCH repetition transmission device can simultaneously monitor the X PDCCH candidates and the Y PDCCH candidates.

[0075] The following takes an example to describe how a PDCCH repetitive transmission device performs a BWP switching process based on the time domain resource of a target PDCCH candidate.

[0076] The PDCCH repeat transmission device can receive the PDCCH from the network side device. As shown in FIG. 3, when the PDCCH carries the BWP switching indication signaling, in the conventional NR communication system, this PDCCH candidate can only be transmitted within the first three symbols of the time domain resource of one transmission unit (corresponding to one slot). Thus, the PDCCH repeat transmission device can transmit the reservation time (T BWPswitchDelay ), the BWP switching process may be performed. However, when the network side equipment configures PDCCH repeat transmission for the PDCCH repeat transmission device, multiple PDCCH candidates may not always be transmitted within the first three symbols of the time domain resource of one transmission unit, where one transmission unit corresponds to one slot concept in the NR communication system. The terminal can correctly solve the DCI information only by soft bit integration on the last PDCCH candidate in the slot in cooperation with multiple PDCCH candidates, and the time to solve the DCI is extended compared with the conventional design. In order to ensure that the terminal accurately performs BWP switching (mainly the PDCCH repeat transmission device adjusts the (Radio Frequency, RF) radio frequency) within the specified time, the parameter T BWPswitchDelay You need to add one preset time on the

[0077] In an embodiment of the present application, when a network side equipment configures PDCCH repeat transmission for a PDCCH repeat transmission device, the PDCCH repeat transmission device may perform a BWP switching process based on a BWP switching indication signaling and a time domain resource of one PDCCH candidate, that is, the PDCCH repeat transmission device may determine to perform a BWP switching process after a reserved time from the transmission start time of a transmission unit in which one PDCCH candidate is located, in order to solve the problems existing in the above related art.

[0078] Optionally, in an embodiment of the present application, before the above step 103, the PDCCH repeated transmission according to the embodiment of the present application may further include the following step 301, and the above step 103 may be specifically realized by the following step 103a.

[0079] Step 301, a PDCCH repeat transmission device receives a BWP switch indication signaling.

[0080] Further optionally, in the embodiment of the present application, the PDCCH repetition transmission device may blindly decode the X PDCCH candidates to obtain the BWP switch indication signaling.

[0081] Step 103a: the PDCCH repetition transmission device performs a BWP switching process according to the BWP switching indication signaling and the time domain resource of the target PDCCH candidate.

[0082] In an embodiment of the present application, the target PDCCH candidate is the last PDCCH candidate on the time domain resource among the X PDCCH candidates.

[0083] Further optionally, in an embodiment of the present application, the PDCCH repeat transmission device may obtain a reservation time (e.g., a pre-set switching reservation time in the embodiment below) configured by a network side device based on a BWP switching instruction signaling, and perform a BWP switching process based on this reservation time and the time domain resource of the target PDCCH candidate.

[0084] The following provides four different examples to describe how a PDCCH repetitive transmission device performs a BWP switching process based on the reservation time and the time domain resource of a target PDCCH candidate.

[0085] Optionally, in one possible implementation manner of the present application, the above step 103a may be specifically implemented by the following step 103a1.

[0086] In step 103a1, the PDCCH repeat transmission device performs a BWP switching process according to the BWP switching indication signaling and the time domain resource of the target PDCCH candidate after a first time length from the transmission start time where the target PDCCH candidate is located.

[0087] In an embodiment of the present application, the first time length includes a preset switching reservation time and a preset time length.

[0088] As can be seen, the first length of time is the sum of a preset switch reservation time and a preset length of time.

[0089] Further, optionally, in the embodiment of the present application, the preset switching reservation time (T BWPswitchDelay ) may be a reservation time specifically defined by a communication protocol.

[0090] Specifically, in the embodiment of the present application, when the BWP switching process occurs on different cells, the preset switching reservation time may be different.

[0091] Exemplarily, when the BWP switching process occurs on a secondary cell (scell), the pre-configured switching reservation time may be a prescribed time in a secondary cell dormancy (scell domancy) scenario.

[0092] Further optionally, in an embodiment of the present application, the preset time length may be Z slots, where Z is a positive integer.

[0093] Specifically, in the embodiment of the present application, the above-mentioned preset time length may specifically be one slot.

[0094] In the embodiment of the present application, since a terminal needs a certain time to demodulate a repeatedly transmitted PDCCH, for example, soft bit integration increases the PDCCH decoding time, the PDCCH repeated transmission device transmits T BWPswitchDelay +Z slots are reserved, the BWP switch can be completed only after reserving the +Z slots, where multiple PDCCH candidates used for repeated transmission may fall within the same slot or occupy different slots.

[0095] Alternatively, in another possible implementation manner of the present application, the above step 103a may be specifically implemented by the following step 103a2.

[0096] Step 103a2, the PDCCH repeat transmission device performs a BWP switching process after a first time length from the transmission start time of the first transmission unit, when, based on the BWP switching instruction signaling and the time domain resources of the target PDCCH candidate, the X PDCCH candidates satisfy a third condition and the time domain resources occupied by the target PDCCH candidate in one transmission unit exceed a first threshold.

[0097] In an embodiment of the present application, the first transmission unit is a transmission unit in which a second PDCCH candidate is located, and the second PDCCH candidate is the first PDCCH candidate on the time domain resource among the X PDCCH candidates.

[0098] Optionally, in an embodiment of the present application, the third condition is that the X PDCCH candidates are transmitted in the same transmission unit.

[0099] Further optionally, in the embodiment of the present application, the time domain resource occupied by the target PDCCH candidate in one transmission unit may be specifically a symbol.

[0100] Further optionally, in an embodiment of the present application, the first threshold value may be a threshold value specifically defined by a communication protocol.

[0101] Specifically, in the embodiment of the present application, the first threshold value may specifically be 3.

[0102] As can be seen, when X PDCCH candidates are transmitted in the same transmission unit (i.e. when intra-slot repetition transmission is configured by the network side equipment) and the symbols occupied by the target PDCCH candidate in one transmission unit exceed three symbols, the PDCCH repetition transmission device may perform the BWP switching process after a first time length from the transmission start time of the first transmission unit.

[0103] Further alternatively, in the embodiments of the present application, the above "the symbols occupied by the target PDCCH candidate in one transmission unit exceed the third symbol" may be understood to mean that the first symbol (or the last symbol) on the time domain resource of the target PDCCH candidate exceeds the third symbol of the transmission unit in which the target PDCCH candidate is located.

[0104] To explain by way of example, as shown in FIG. 4, when intra-slot repetition transmission is configured by a network side device and X PDCCH candidates (e.g., PDCCH candidate 1 and PDCCH candidate 2) are transmitted in the same transmission unit (e.g., slot #1), if the symbol occupied by PDCCH candidate 2 in this slot #1 exceeds the third symbol, the PDCCH repetition transmission device may perform a BWP switching process after a first time length from the transmission start time of the first transmission unit (i.e., slot #1).

[0105] In an embodiment of the present application, when the X PDCCH candidates satisfy the third condition and the time domain resource occupied by the target PDCCH candidate in one transmission unit exceeds a first threshold, the PDCCH may not be blind decoded in the first PDCCH candidate on the time domain resource among the X PDCCH candidates, so the PDCCH repeat transmission device may perform the BWP switching process only after a first time length from the transmission start time of the first transmission unit in which the first PDCCH candidate is located, that is, after a time length of the sum of the preset switching reservation time and the preset time length.

[0106] Optionally, in another possible implementation manner of the present application, the above step 103a may be specifically implemented by the following step 103a3.

[0107] Step 103a3, the PDCCH repetition transmission device performs a BWP switching process after a first time length from the transmission start time of the first transmission unit, when, based on the BWP switching instruction signaling and the time domain resource of the target PDCCH candidate, the X PDCCH candidates satisfy a third condition and the time offset amount between the first time of the target PDCCH candidate and the first time of the second PDCCH candidate is greater than a second threshold.

[0108] In an embodiment of the present application, the first time includes one of a transmission start time and a transmission end time.

[0109] As can be seen, when X PDCCH candidates are transmitted in the same transmission unit (i.e. when intra-slot repetition transmission is configured by the network side equipment) and a time offset between the transmission start time (or transmission end time) of the target PDCCH candidate and the transmission start time (or transmission end time) of the second PDCCH candidate is greater than a second threshold, the PDCCH repetition transmission device may perform a BWP switching process after a first time length from the transmission start time of the first transmission unit.

[0110] In the embodiment of the present application, the second threshold value is a threshold value reported by the PDCCH repetitive transmission device to the network side device.

[0111] Further optionally, in an embodiment of the present application, if the X PDCCH candidates satisfy a third condition and the time offset amount between the first time of the target PDCCH candidate and the first time of the second PDCCH candidate is less than or equal to a second threshold, the PDCCH repeat transmission device may perform a BWP switching process after a preset switching reservation time (i.e., a second time length in the embodiment below) from the transmission start time of the first transmission unit.

[0112] In an embodiment of the present application, when the X PDCCH candidates satisfy the third condition and the time offset between the first time of the target PDCCH candidate and the first time of the second PDCCH candidate is greater than a second threshold, the PDCCH may not be blind decoded in the first PDCCH candidate on the time domain resource among the X PDCCH candidates, so the PDCCH repetitive transmission device may perform the BWP switching process only after a first time length from the transmission start time of the first transmission unit in which the second PDCCH candidate is located, i.e., after the sum of the predetermined switching reservation time and the predetermined time length.

[0113] Optionally, in another possible implementation manner of the present application, the above step 103a may be specifically implemented by the following step 103a4.

[0114] Step 103a4: based on the BWP switching instruction signaling and the time domain resources of the target PDCCH candidate, if the X PDCCH candidates satisfy a fourth condition, the PDCCH repeat transmission device performs a BWP switching process after a second time length from the transmission start time of the second transmission unit or after a first time length from the transmission start time of the first transmission unit.

[0115] Optionally, in an embodiment of the present application, the above fourth condition is that the X PDCCH candidates are transmitted in different transmission units.

[0116] Optionally, in an embodiment of the present application, the second transmission unit is a transmission unit in which a target PDCCH candidate is located.

[0117] Optionally, in an embodiment of the present application, the second time period is a preset scheduled switching time.

[0118] As can be seen, when X PDCCH candidates are transmitted in different transmission units (i.e. when inter-slot repetition transmission is configured by the network side equipment), the PDCCH repetition transmission device may perform the BWP switching process after a pre-configured switching reservation time from the transmission start time of the second transmission unit.

[0119] In an embodiment of the present application, when the X PDCCH candidates satisfy the fourth condition, there may be cases where the PDCCH has not been blind decoded in the first PDCCH candidate on the time domain resource among the X PDCCH candidates, so the PDCCH repeat transmission device may perform the BWP switching process only after a second time length from the transmission start time of the second transmission unit, i.e., after a predetermined switching reservation time, or the PDCCH repeat transmission device may perform the BWP switching process only after a first time length from the transmission start time of the first transmission unit, i.e., after the sum of the predetermined switching reservation time and the predetermined time length.

[0120] As can be seen from this, the PDCCH repeat transmission device can perform the BWP switching process based on the BWP switching instruction signaling and the time domain resource of one PDCCH candidate, i.e., the PDCCH repeat transmission device can determine to perform the BWP switching process after the reserved time from the transmission start time of the transmission unit in which one PDCCH candidate is located, thereby improving the reliability of the execution of the BWP switching process by the PDCCH repeat transmission device.

[0121] The following takes an example to describe how the PDCCH repetitive transmission device sends decision information to the network side device based on the time domain resource of the target PDCCH candidate.

[0122] In the related art, when the PDCCH repeat transmission device successfully detects or does not detect a PDCCH candidate, the PDCCH repeat transmission device transmits ACK / NACK information to a network side device, so that the network side device can perform related operations based on the ACK / NACK information. However, when the network side device configures PDCCH repeat transmission for the PDCCH repeat transmission device, how the PDCCH repeat transmission device transmits the ACK / NACK to the network side device is not specified in the related art.

[0123] However, in an embodiment of the present application, when the network side equipment configures PDCCH repeat transmission for the PDCCH repeat transmission device, the PDCCH repeat transmission device may send decision information to the network side equipment based on the first signaling and the time domain resource of one PDCCH candidate, in order to solve the problems existing in the above related technology.

[0124] Optionally, in an embodiment of the present application, before the above step 103, the PDCCH repeated transmission according to the embodiment of the present application may further include the following step 401, and the above step 103 may be specifically realized by the following step 103b.

[0125] Step 401: a PDCCH repeat transmission device receives a first signaling.

[0126] It should be noted that for the description of the acquisition of the first signaling by the PDCCH repeat transmission device, reference can be made to the specific description of the acquisition of the BWP switching instruction signaling by the PDCCH repeat transmission device in the above embodiment, and the embodiment of the present application will not be further described here.

[0127] In an embodiment of the present application, the first signaling includes one of: a secondary cell dormancy indication signaling; and a semi-persistent PDSCH scheduling release indication signaling.

[0128] Step 103b: the PDCCH repetitive transmission device sends decision information to a network side device according to the first signaling and the time domain resource of the target PDCCH candidate.

[0129] In an embodiment of the present application, the target PDCCH candidate is the last PDCCH candidate on the time domain resource among the X PDCCH candidates.

[0130] Optionally, in the embodiment of the present application, the above step 103b may be specifically realized by the following step 103b1.

[0131] In step 103b1, the PDCCH repetition transmission device sends decision information to a network side device according to the first signaling and the time domain resource of the target PDCCH candidate after Q symbols from the end symbol on the time domain resource of the target PDCCH candidate.

[0132] In the embodiments of the present application, Q is a positive integer.

[0133] In an embodiment of the present application, the target PDCCH candidate is the last PDCCH candidate on the time domain resource among the X PDCCH candidates.

[0134] As can be seen, the starting position of the first symbol on the time domain resource of Q symbols is calculated from the end of the last symbol on the time domain resource of the target PDCCH candidate.

[0135] For example, as shown in Fig. 5, the X PDCCH candidates include PDCCH candidate 1 and PDCCH candidate 2, and the PDCCH candidate 2 is the last PDCCH candidate on the time domain resource among the PDCCH candidate 1 and the PDCCH candidate 2. The PDCCH repetitive transmission device may transmit decision information to the network side device after Q symbols from the last symbol (e.g., symbol 10) on the time domain resource of the PDCCH candidate 2 based on the first signaling and the time domain resource of the PDCCH candidate 2.

[0136] Further optionally, in the embodiment of the present application, the above-mentioned determination information may specifically be ACK / NACK information, where the ACK / NACK information is used to indicate whether the PDCCH repeat transmission device has successfully detected the PDCCH candidate.

[0137] As can be seen from this, the PDCCH repeat transmission device can transmit decision information to a network side device based on the first signaling and the time domain resource of one PDCCH candidate, i.e., the PDCCH repeat transmission device can determine to transmit the decision information to the network side device after at least one symbol from one symbol on the time domain resource of one PDCCH candidate, thereby improving the reliability of the transmission of the decision information by the PDCCH repeat transmission device.

[0138] The following takes an example to describe how a PDCCH repetitive transmission device determines a scheduling pattern of a PDSCH based on the time domain resource of a target PDCCH candidate.

[0139] Optionally, in an embodiment of the present application, before the above step 103, the PDCCH repeated transmission according to the embodiment of the present application may further include the following step 501, and the above step 103 may be specifically realized by the following step 103c.

[0140] Step 501, a PDCCH repeat transmission device obtains a PDSCH scheduling signaling.

[0141] It should be noted that for the description of the PDCCH repeat transmission device obtaining the PDSCH scheduling signaling, reference can be made to the specific description of the PDCCH repeat transmission device obtaining the BWP switching indication signaling in the above embodiment, and the embodiment of this application will not be further described here.

[0142] Step 103c, the PDCCH repetition transmission device determines a scheduling pattern of the PDSCH according to the PDSCH scheduling signaling and the time domain resource of the target PDCCH candidate.

[0143] In an embodiment of the present application, the starting symbol on the time domain resource of the target PDCCH candidate is transmitted in the same transmission unit as the starting symbol on the time domain resource of the PDSCH.

[0144] In an embodiment of the present application, the target PDCCH candidate is: Among the X PDCCH candidates, the first PDCCH candidate or the last PDCCH candidate on the time domain resource; Among the X PDCCH candidates, the PDCCH candidate with the largest associated search space index value or the PDCCH candidate with the smallest associated search space index value; Among the X PDCCH candidates, the PDCCH candidate with the largest index value of the associated control resource set or the PDCCH candidate with the smallest index value of the associated control resource set is included.

[0145] It can be understood that the PDCCH repetitive transmission device may define one reference PDCCH candidate (ie, a target PDCCH candidate) among the X PDCCH candidates, and determine a scheduling pattern of the PDSCH according to the PDSCH scheduling signaling and the time domain resource of the reference PDCCH candidate.

[0146] Optionally, in an embodiment of the present application, when the PDSCH adopts a first mapping scheme, the symbols on the time domain resources of the target PDCCH candidate are located in the first R symbols of the same transmission unit, where R is a positive integer.

[0147] Further optionally, in the embodiment of the present application, the above first mapping manner may specifically be a type A mapping manner.

[0148] Further optionally, in the embodiments of the present application, the value of R may specifically be 3.

[0149] Optionally, in the embodiment of the present application, when the PDSCH adopts the second mapping scheme, the starting symbol on the time domain resource of the target PDCCH candidate is not later than the starting symbol on the time domain resource of the PDSCH.

[0150] Further optionally, in the embodiment of the present application, the second mapping manner may specifically be type B.

[0151] Optionally, in an embodiment of the present application, when the target PDCCH candidate is the last PDCCH candidate on the time domain resource among the X PDCCH candidates, the scheduling pattern of the PDSCH is determined based on the first parameter value.

[0152] Alternatively, in the embodiments of the present application, A starting symbol on the time domain resource of the PDSCH is advanced by T symbols or delayed by T symbols with respect to a starting symbol position on the time domain resource of the target PDCCH candidate, where T is a positive integer; and a position of a scheduling start symbol of the PDSCH relative to a target symbol; Here, the interval between the target symbol and the first symbol or the last symbol on the time domain resource of any one of the X PDCCH candidates is a target numerical value; The target value is determined by either a preset value or a value determined by the network side device based on the capability reported by the PDCCH repetitive transmission device.

[0153] Further optionally, in the embodiment of the present application, the first parameter value may specifically be a SLIV(startSymbolAndLength) value.

[0154] As can be seen, the DCI carries one Time Domain Resource Assignment (TDRA) table indicating the scheduling pattern of the PDSCH to the PDCCH (including slot offset, PDSCH start symbol position, and PDSCH symbol length), where TDRA is represented by N bits.

[0155] The pattern represented by the different bits is configured by higher layer signaling.

[0156] The following provides an explanation using two examples.

[0157] Example 1: A network side device configures one parameter by higher layer signaling, represented by 1 bit, and is used to distinguish whether the start symbol information carried in the SLIV characterizes the PDSCH being T symbols ahead of the PDCCH or T symbols behind the PDSCH.

[0158] For example, bit=0 indicates a delay, and bit=1 indicates an advance.

[0159] In the embodiment of the present application, bit may be equal to 1, ie, the PDSCH may be advanced relative to the PDCCH.

[0160] Take an example, as shown in FIG. 6, the PDSCH start symbol is advanced by 5 symbols relative to the start symbol of the second PDCCH.

[0161] Example 2: A PDCCH repetition transmission device reports the capability to indicate the maximum interval from the PDSCH scheduling start symbol to the start symbol of the first PDCCH candidate or the second candidate in any one PDCCH candidate.

[0162] Take an example, as shown in Figure 7, the PDSCH start symbol is delayed by one symbol with respect to the target symbol, where the target value of the gap between the target symbol and the start symbol of the second PDCCH candidate is gap=5 symbols, where the gap value may be predefined or may refer to the capability reported by the terminal.

[0163] It should be noted that in the PDCCH repeat transmission method according to the embodiment of the present application, the execution body may be a PDCCH repeat transmission device, or a control module for executing the PDCCH repeat transmission method in the PDCCH repeat transmission device. In the embodiment of the present application, the execution of the PDCCH repeat transmission method by the PDCCH repeat transmission device is taken as an example to describe the embodiment of the present application.

[0164] It should be noted that the embodiment of the network side equipment corresponds to the embodiment of the terminal side, and all the implementation methods of the embodiment of the terminal side can be applied to the embodiment of the network side and can achieve the same technical effects, so they will not be described further.

[0165] 8 shows a possible structural schematic diagram of a PDCCH repeat transmission device according to an embodiment of the present application, where the PDCCH repeat transmission device is a UE. As shown in FIG. 8, the PDCCH repeat transmission device 60 may include a determining module 61 and an executing module 62.

[0166] Here, the determining module 61 is used to determine X (X is an integer greater than 1) PDCCH candidates that are repeatedly transmitted when receiving a repeatedly transmitted PDCCH. The executing module 62 is used to execute an overbooking rule based on the assumed first blind decoding times of the X PDCCH candidates determined by the determining module 61, or to execute a target operation based on the time domain resource of a target PDCCH candidate. Here, a search space corresponding to the X PDCCH candidates is associated, and the target PDCCH candidate is a PDCCH candidate that satisfies a predetermined condition among the X PDCCH candidates.

[0167] In one possible implementation method, the first blind decoding number is determined by any one of the blind decoding number assumed by default for demodulating the repeatedly transmitted PDCCH, the blind decoding number reported by the PDCCH repeated transmission device for demodulating the repeatedly transmitted PDCCH, and the blind decoding number determined by the network side equipment based on the blind decoding number reported by the PDCCH repeated transmission device for demodulating the repeatedly transmitted PDCCH.

[0168] In one possible implementation manner, the execution module 62 is specifically used for the PDCCH repetitive transmission device to execute an overbooking rule based on a first blind decoding number according to a predetermined rule.

[0169] In one possible implementation manner, the above-mentioned predetermined rule includes any one of the following: each PDCCH candidate among the X PDCCH candidates is associated with a different search space; and the PDCCH candidate associated with the search space with a smaller index value is calculated according to a third blind decoding number, and the PDCCH candidate associated with the search space with a larger index value is calculated according to a fourth blind decoding number, where the fourth blind decoding number is equal to or greater than the third blind decoding number.

[0170] In one possible implementation, when each PDCCH candidate among the X PDCCH candidates is transmitted in the same transmission unit and the X PDCCH candidates do not completely overlap on the time domain resource, the last symbol of the PDCCH candidate associated with the search space with a higher index value is later than the last symbol of the PDCCH candidate associated with the search space with a lower index value, or the first symbol of the PDCCH candidate associated with the search space with a higher index value is later than the first symbol of the PDCCH candidate associated with the search space with a lower index value.

[0171] In one possible implementation, the above-mentioned predetermined rule is as follows: when the first blind decoding number is equal to X, each PDCCH candidate is calculated by one blind decoding, and if the Xth blind decoding exceeds the blind decoding capability reported by the PDCCH repeated transmission device, the repeatedly transmitted PDCCH is calculated by X-1 blind decoding; when the first blind decoding number is equal to X, each PDCCH candidate is calculated by one blind decoding, and if the Xth blind decoding does not exceed the blind decoding capability reported by the PDCCH repeated transmission device, the repeatedly transmitted PDCCH is calculated by X-1 blind decoding. , the repeatedly transmitted PDCCH is calculated by X blind decoding, the X-th blind decoding is performed by aggregating soft bit information corresponding to the X PDCCH candidates, and blind decoding is performed on the aggregated soft bit information, where the blind decoding performed on the aggregated soft bit information is related to a first search space, the first search space is a predetermined specific search space or a specific search space configured by a network side device, and the first search space is used to blind decode the aggregated soft bit information.

[0172] In one possible implementation manner, M search space-related groups are transmitted in the same transmission unit, each search space-related group includes X search spaces, and the X search spaces correspond one-to-one to the X PDCCH candidates, and each search space-related group has K candidate PDCCH sets, and each candidate PDCCH set includes X PDCCH candidates, and the total number of candidate PDCCH sets transmitted in the same transmission unit is H, where the value of M is determined by one of a preset value and a value determined by the network side equipment based on the capability reported by the PDCCH repeat transmission device, the value of K is determined by one of a preset value and a value determined by the network side equipment based on the capability reported by the PDCCH repeat transmission device, and the value of H is determined by one of a preset value and a value determined by the network side equipment based on the capability reported by the PDCCH repeat transmission device.

[0173] In one possible implementation manner, the execution module 62 is specifically used for determining that the transmission behavior of the X PDCCH candidates is a repeated transmission behavior when any one of the X PDCCH candidates satisfies a first condition, and executing an overbooking rule based on the assumed first blind decoding number of the X PDCCH candidates, where the first condition is that the time-frequency resource of any one of the PDCCH candidates conflicts with the target time-frequency resource.

[0174] In one possible implementation manner, the target time-frequency resource includes any one of a time-frequency resource of a synchronization signal block SSB, a time-frequency resource of a specific reference signal CRS of a cell configured by a higher layer, a time-frequency resource for indicating other physical downlink shared channel PDSCH rate matching, and an unavailable time-frequency resource configured by a higher layer.

[0175] In one possible implementation manner, the execution module 62 is further used to monitor the X PDCCH candidates and the Y PDCCH candidates when a second condition is met, where the second condition includes: the PDCCH repeated transmission device reports a target capability; the Y PDCCH candidates are not used for repeated transmission of the PDCCH; the receiving beams associated with the Y PDCCH candidates are different; and the time domain resources of the Y PDCCHs overlap, and the target capability is the capability of the PDCCH repeated transmission device to simultaneously receive PDCCH candidates associated with different beams.

[0176] In one possible implementation manner, the PDCCH repeat transmission device further includes an acquisition module, which is used to acquire a BWP switching indication signaling. The execution module 62 is specifically used to execute a BWP switching process according to the BWP switching indication signaling and the time domain resource of the target PDCCH candidate acquired by the acquisition module, where the target PDCCH candidate is the last PDCCH candidate on the time domain resource among the X PDCCH candidates.

[0177] In one possible implementation manner, the execution module specifically performs the BWP switching process after a first time length from the transmission start time of the transmission unit where the target PDCCH candidate is located; or, when the X PDCCH candidates meet a third condition and the time domain resource occupied by the target PDCCH candidate in a transmission unit exceeds a first threshold, the PDCCH repeat transmission device performs the BWP switching process after a first time length from the transmission start time of the first transmission unit; or, when the X PDCCH candidates meet the third condition and the time offset amount between the first time of the target PDCCH candidate and the first time of the second PDCCH candidate is greater than a second threshold, the PDCCH repeat transmission device performs the BWP switching process after a first time length from the transmission start time of the first transmission unit. The PDCCH repeat transmission device is used for performing a BWP switching process, or, when the X PDCCH candidates satisfy a fourth condition, for performing a BWP switching process after a second time length from a transmission start time of a second transmission unit or after a first time length from a transmission start time of a first transmission unit, where the first transmission unit is a transmission unit where a second PDCCH candidate is located, and the second PDCCH candidate is a first PDCCH candidate on a time domain resource among the X PDCCH candidates, the first time includes any one of a transmission start time and a transmission end time, the second transmission unit is a transmission unit where a target PDCCH candidate is located, the first time length includes a preset switching reservation time and a preset time length, and the second time length is the preset switching reservation time.

[0178] In one possible implementation, the third condition is that the X PDCCH candidates are transmitted in the same transmission unit, the fourth condition is that the X PDCCH candidates are transmitted in different transmission units, and the second threshold is a threshold reported by the PDCCH repetition transmission device to the network side equipment.

[0179] In one possible implementation manner, the PDCCH repeated transmission device further includes an acquisition module, where the acquisition module is used to acquire a first signaling, the first signaling including one of a secondary cell dormancy indication signaling and a semi-persistent PDSCH scheduling release indication signaling. The execution module 62 is specifically used to send decision information to a network side device according to the first signaling acquired by the acquisition module and the time domain resource of the target PDCCH candidate, where the target PDCCH candidate is the last PDCCH candidate on the time domain resource among the X PDCCH candidates.

[0180] In one possible implementation manner, the execution module 62 is specifically used for sending decision information to a network side device after J symbols from the end symbol on the time domain resource of the target PDCCH candidate, where J is a positive integer.

[0181] In one possible implementation, the PDCCH repeat transmission device further includes an acquisition module, where the acquisition module is used for acquiring PDSCH scheduling signaling. The execution module 62 is specifically used for determining a scheduling pattern of PDSCH according to the PDSCH scheduling signaling acquired by the acquisition module and the time domain resource of the target PDCCH candidate, where the start symbol on the time domain resource of the target PDCCH candidate is transmitted in the same transmission unit as the start symbol on the time domain resource of the PDSCH, and the target PDCCH candidate includes any one of the following: the first PDCCH candidate or the last PDCCH candidate on the time domain resource among the X PDCCH candidates; the PDCCH candidate with the largest index value of the associated search space among the X PDCCH candidates, or the PDCCH candidate with the smallest index value of the associated search space among the X PDCCH candidates; and the PDCCH candidate with the largest index value of the associated control resource set among the X PDCCH candidates, or the PDCCH candidate with the smallest index value of the associated control resource set among the X PDCCH candidates.

[0182] In one possible implementation manner, if the target PDCCH candidate is the last PDCCH candidate on the time domain resource among the X PDCCH candidates, the scheduling pattern of the PDSCH is determined based on the first parameter value.

[0183] In one possible implementation manner, the first parameter value is specifically used to characterize one of the following: a start symbol on the time domain resource of the PDSCH is advanced by T symbols or delayed by T symbols with respect to a position of the start symbol on the time domain resource of the target PDCCH candidate, where T is a positive integer; and a position of the scheduling start symbol of the PDSCH with respect to the target symbol, where the interval between the target symbol and the first symbol or the last symbol on the time domain resource of any one of the X PDCCH candidates is a target numerical value, and the target numerical value is determined by one of a preset numerical value and a numerical value determined by the network side equipment based on the capability reported by the PDCCH repetition transmission device.

[0184] In one possible implementation, when the PDSCH adopts a first mapping scheme, the symbols on the time domain resources of the target PDCCH candidate are located at the first R symbols of the same transmission unit, where R is a positive integer, and when the PDSCH adopts a second mapping scheme, the starting symbol on the time domain resources of the target PDCCH candidate is not later than the starting symbol on the time domain resources of the PDSCH.

[0185] According to the PDCCH repeat transmission device of the embodiment of the present application, the PDCCH repeat transmission device executes an overbooking rule based on the assumed first blind decoding number of X PDCCH candidates, thereby avoiding a situation in which the number of blind decodings of the X PDCCH candidates exceeds the maximum blind decoding number of the PDCCH repeat transmission device, thereby improving the reliability of the execution of blind decoding by the PDCCH repeat transmission device, or the PDCCH repeat transmission device executes a target operation based on the time domain resource of a PDCCH candidate that satisfies a predetermined condition among the X PDCCH candidates, thereby avoiding a situation in which the PDCCH repeat transmission device cannot determine the time after which the reservation time to execute the target operation, thereby improving the reliability of the execution of the operation. In this way, the reliability of the execution of the operation by the PDCCH repeat transmission device can be improved.

[0186] The PDCCH repeat transmission device in the embodiment of the present application may be a device, a device having an operating system, or an electronic device, and may be a component, an integrated circuit, or a chip in a terminal. The device or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a deposit machine or a self-service machine, and the embodiment of the present application is not specifically limited.

[0187] The PDCCH repeat transmission device according to the embodiment of the present application can realize each process realized by the method embodiments of Figures 1 to 7, and achieve the same technical effects, and will not be described further here in order to avoid repetition of description.

[0188] 9 shows a possible structural schematic diagram of a PDCCH repeat transmission device according to an embodiment of the present application, where the PDCCH repeat transmission device is a network side device. As shown in FIG. 9, the PDCCH repeat transmission device 70 may include: a sending module 71.

[0189] Here, the sending module 71 is used for sending the repeatedly transmitted X PDCCH candidates to the UE, and sending the assumed first blind decoding times of the X PDCCH candidates to the UE.

[0190] In one possible implementation, the PDDCH repeated transmission device includes a receiving module and a determining module, where the receiving module is used to receive a blind decoding number of demodulating the repeatedly transmitted PDCCH reported by the UE, and the determining module is used to determine a first blind decoding number according to the blind decoding number of demodulating the repeatedly transmitted PDCCH.

[0191] The embodiment of the network side equipment corresponds to the embodiment of the terminal side, and all the implementation methods of the embodiment of the terminal side can be applied to the embodiment of the network side and can achieve the same technical effects, so they will not be described further.

[0192] The PDCCH repeat transmission device in the embodiment of the present application may be a device, a device having an operating system, or an electronic device, and may be a component, an integrated circuit, or a chip in a terminal. The device or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a deposit machine or a self-service machine, and the embodiment of the present application is not specifically limited.

[0193] Optionally, as shown in Figure 10, the embodiment of the present application further provides a communication device m00, including a processor m01, a memory m02, and a program or instruction stored in the memory m02 and capable of running on the processor m01, for example, when the communication device m00 is a terminal, when the program or instruction is executed by the processor m01, each process of the embodiment of the PDCCH repeat transmission method can be realized, and the same technical effect can be achieved. When the communication device m00 is a network side device, when the program or instruction is executed by the processor m01, each process of the embodiment of the PDCCH repeat transmission method can be realized, and the same technical effect can be achieved. In order to avoid repetition, no further description will be given here.

[0194] The embodiment of the present application further provides a terminal, which includes a processor and a communication interface, and the processor is used for the UE to determine X (X is an integer greater than 1) PDCCH candidates repeatedly transmitted when the UE receives a repeatedly transmitted physical downlink control channel PDCCH, and to perform an overbooking rule according to the assumed first blind decoding times of the X PDCCH candidates, or to perform a target operation according to the time domain resource of the target PDCCH candidate. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and realization manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and the same technical effect can be achieved. Specifically, FIG. 11 is a schematic diagram of a hardware structure of a UE for realizing the embodiment of the present application.

[0195] The terminal 100 includes at least some of the following components, but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110.

[0196] As can be understood by those skilled in the art, the terminal 100 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 110 by a power management system, so that the power management system can realize functions such as charge / discharge management and power consumption management. The terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal may include more or less components than the number of components shown, or a combination of some components, or a different arrangement of components, and will not be further described here.

[0197] It should be understood that in the embodiment of the present application, the input unit 104 may include a graphics processor (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes image data of still or video images obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, and the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. The other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and an operation lever, which will not be described further herein.

[0198] In the embodiment of the present application, the radio frequency unit 101 receives downlink data from the network side device, and then causes the processor 110 to process the data, and transmits uplink data to the network side device. In general, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0199] The memory 109 may be used to store software programs or instructions and various data. The memory 109 may mainly include a program or instruction storage area and a data storage area, where the program or instruction storage area can store an operating system, an application program or instruction required for at least one function (e.g., a sound playback function, an image playback function, etc.), etc. The memory 109 may include a high-speed random access memory or a non-volatile memory, where the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, the memory 109 may be at least one magnetic disk memory device, a flash memory device, or other non-volatile solid-state memory device.

[0200] The processor 110 may include one or more processing units. Optionally, the processor 110 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and application programs or instructions, and the modem processor mainly processes wireless communication, such as a baseband processor. As can be understood, the modem processor does not have to be integrated into the processor 110.

[0201] Here, the processor 110 is used for, when the UE receives a repeatedly transmitted physical downlink control channel PDCCH, the UE determines X (X is an integer greater than 1) repeatedly transmitted PDCCH candidates, and the UE performs an overbooking rule based on the assumed first blind decoding times of the X PDCCH candidates, or the UE performs a target operation based on the time domain resource of the target PDCCH candidate.

[0202] Here, a search space corresponding to the X PDCCH candidates is associated, and the target PDCCH candidate is a PDCCH candidate that satisfies a predetermined condition among the X PDCCH candidates.

[0203] In the embodiment of the present application, the UE executes an overbooking rule based on the assumed first blind decoding number of X PDCCH candidates, thereby avoiding a situation in which the number of blind decodings of the X PDCCH candidates exceeds the maximum blind decoding number of the UE, thereby improving the reliability of the blind decoding execution by the UE; or the UE executes a target operation based on the time domain resource of a PDCCH candidate that satisfies a predetermined condition among the X PDCCH candidates, thereby avoiding a situation in which the UE cannot determine the time after the reservation time to execute the target operation, thereby improving the reliability of the operation execution. In this way, the reliability of the operation execution by the UE can be improved.

[0204] An embodiment of the present application further provides a network side equipment, which includes a processor and a communication interface, and the communication interface is used for sending the repeatedly transmitted X PDCCH candidates to the UE, and sending the assumed first blind decoding times of the X PDCCH candidates to the UE. This embodiment of the network side equipment corresponds to the embodiment of the method of the above-mentioned network side equipment, and each implementation process and realization manner of the embodiment of the method can be applied to this embodiment of the network side equipment, and the same technical effects can be achieved.

[0205] Specifically, an embodiment of the present application further provides a network side device. As shown in Fig. 12, the network side device 200 includes an antenna 21, a radio frequency device 22, and a baseband device 23. The antenna 21 and the radio frequency device 22 are connected. In the uplink direction, the radio frequency device 22 receives information through the antenna 21, and transmits the received information to the baseband device 23 for processing. In the downlink direction, the baseband device 23 processes the information to be transmitted and transmits it to the radio frequency device 22, and the radio frequency device 22 processes the received information and then sends it out through the antenna 21.

[0206] The above frequency band processing device may be located in a baseband device 23, and the methods performed by the network side equipment in the above embodiments may be implemented in the baseband device 23, which includes a processor 24 and a memory 25.

[0207] The baseband device 23 may include, for example, at least one baseband board, on which a plurality of chips are installed, and as shown in FIG. 12, one of the chips is, for example, a processor 24, which is connected to a memory 25, calls a program in the memory 25, and performs the operation of the network side equipment shown in the embodiment of the above method.

[0208] The baseband unit 23 may further include a network interface 26, which is used to exchange information with the radio frequency unit 22, and which is for example a common public radio interface (abbreviated as CPRI).

[0209] Specifically, the network side equipment of the embodiment of the present invention further includes instructions or programs stored in memory 25 and capable of running on processor 24, and processor 24 can call the instructions or programs in memory 25 to execute the method performed by each module shown in FIG. 9 and achieve the same technical effect, which will not be described further here in order to avoid repetition.

[0210] The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, each process of the above-mentioned PDCCH repetitive transmission method embodiment can be realized and the same technical effect can be achieved. In order to avoid repetition, no further description will be given here.

[0211] Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0212] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor runs a program or instruction, and is used to realize each process of the embodiment of the PDCCH repetitive transmission method, and can achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0213] It should be understood that the chips referred to in the embodiments of the present application may be referred to as system level chips, system chips, chip systems, or systems on chips.

[0214] It should be explained that in this specification, the terms "comprise", "include", or any other variants thereof are intended to cover the non-exclusive "comprise", whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly listed or inherent to such process, method, article, or apparatus. In the absence of further limitations, an element limited by the phrase "comprises a" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes this element. It should be pointed out that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions in an essentially simultaneous manner or in reverse order based on the functions involved, for example, the described method can be performed in a different order than described, and various steps can be added, omitted, or combined. Also, features described with reference to some examples can be combined in other examples.

[0215] From the above description of the embodiments, it is clear to those skilled in the art that the methods of the above embodiments can be realized in the form of software and a necessary general-purpose hardware platform. Of course, they can also be realized in hardware, but in many cases the former is a more preferred embodiment. In light of this understanding, the technical proposal of the present application may be substantially or the part that contributes to the prior art may be embodied in the form of a computer software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes some instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0216] The above describes the embodiments of the present application in conjunction with the drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not limiting. Those skilled in the art can take the suggestions of this application and make many forms without departing from the spirit and scope of the claims of this application, all of which belong to the protection scope of this application.

Claims

1. A physical downlink control channel (PDCCH) repetitive transmission method, comprising: determining X (X is an integer greater than 1) PDCCH candidates that are repeatedly transmitted when a user equipment (UE) receives a repeatedly transmitted physical downlink control channel (PDCCH); The UE performs an overbooking rule based on the assumed first blind decoding times of the X PDCCH candidates, or the UE performs a target operation based on a time domain resource of a target PDCCH candidate; wherein a search space corresponding to the X PDCCH candidates is associated with the target PDCCH candidate, and the target PDCCH candidate is a PDCCH candidate among the X PDCCH candidates that satisfies a predetermined condition.

2. The first blind decoding iteration is The number of blind decoding times for demodulating the repeatedly transmitted PDCCH, which is assumed by default; A blind decoding count for demodulating the repeatedly transmitted PDCCH reported by the UE; and a blind decoding number determined by a network side device based on a blind decoding number for demodulating a repeatedly transmitted PDCCH reported by the UE.

3. The UE performing an overbooking rule based on a hypothesized first blind decoding number of the X PDCCH candidates, The method of claim 1 , comprising: the UE executing the overbooking rule based on the first blind decoding count according to a predetermined rule.

4. The predetermined rule is: Each PDCCH candidate among the X PDCCH candidates is associated with a different search space; and The PDCCH candidates associated with the search space having a small index value are calculated according to a third blind decoding number, and the PDCCH candidates associated with the search space having a large index value are calculated according to a fourth blind decoding number; The method of claim 3 , wherein the fourth blind decoding number is equal to or greater than the third blind decoding number.

5. If each PDCCH candidate among the X PDCCH candidates is transmitted in the same transmission unit, and the X PDCCH candidates do not completely overlap on the time domain resource, The last symbol of a PDCCH candidate associated with a search space having a larger index value is later than the last symbol of a PDCCH candidate associated with a search space having a smaller index value; The method according to claim 4, wherein the first symbol of a PDCCH candidate associated with a search space having a higher index value is later than the first symbol of a PDCCH candidate associated with a search space having a lower index value.

6. The predetermined rule is: When the first blind decoding number is equal to X, each PDCCH candidate is calculated by one blind decoding, and if the Xth blind decoding exceeds the blind decoding capability reported by the UE, the repeatedly transmitted PDCCH is calculated by X-1 blind decodings; When the first blind decoding number is equal to X, each PDCCH candidate is calculated by one blind decoding, and if the X-th blind decoding does not exceed the blind decoding capability reported by the UE, the repeatedly transmitted PDCCH is calculated by X-th blind decoding, and the X-th blind decoding is a combination of soft bit information corresponding to the X PDCCH candidates and a blind decoding performed on the combined soft bit information; Wherein, the blind decoding performed on the combined soft bit information is related to a first search space, The method according to claim 3, wherein the first search space is a predetermined specific search space or a specific search space configured by a network side device, and the first search space is used for blind decoding of the integrated soft bit information.

7. Transmit M search space-related groups in the same transmission unit, each search space-related group including X search spaces, and the X search spaces correspond one-to-one to the X PDCCH candidates; In each search space-associated group, there are K candidate PDCCH sets, each candidate PDCCH set including X PDCCH candidates; The total number of candidate PDCCH sets transmitted in the same transmission unit is H, 2. The method of claim 1, wherein the value of M is determined by one of a preset value and a value determined by a network side device based on the capabilities reported by the UE, the value of K is determined by one of a preset value and a value determined by a network side device based on the capabilities reported by the UE, and the value of H is determined by one of a preset value and a value determined by a network side device based on the capabilities reported by the UE.

8. The UE performing an overbooking rule based on a hypothesized first blind decoding number of the X PDCCH candidates, When any one PDCCH candidate among the X PDCCH candidates satisfies a first condition, the UE determines that the transmission behavior of the X PDCCH candidates is a repeated transmission behavior, and executes an overbooking rule based on a first assumed blind decoding number of the X PDCCH candidates; The method according to claim 1 , wherein the first condition is that a time-frequency resource of any one of the PDCCH candidates collides with a target time-frequency resource.

9. 9. The method of claim 8, wherein the target time-frequency resource includes any one of a time-frequency resource of a synchronization signal block (SSB), a time-frequency resource of a specific reference signal (CRS) of a cell configured by a higher layer, a time-frequency resource for indicating another physical downlink shared channel (PDSCH) rate matching, and an unavailable time-frequency resource configured by a higher layer.

10. After the UE executes an overbooking rule based on the assumed first blind decoding times of the X PDCCH candidates, the method includes: If a second condition is met, the UE monitors the X PDCCH candidates and the Y PDCCH candidates; Wherein, the second condition includes: the UE reports target capability; the Y PDCCH candidates are not used for repeated transmission of PDCCH; the receiving beams associated with the Y PDCCH candidates are different; and the time domain resources of the Y PDCCHs overlap; The method of claim 1 , wherein the target capability is the capability of the UE to simultaneously receive PDCCH candidates associated with different beams.

11. Before the UE performs a target operation based on a time domain resource of a target PDCCH candidate, the method includes: The UE further includes obtaining a broadband partial BWP switching indication signaling; The UE performing a target operation based on a time domain resource of a target PDCCH candidate, The UE performs a BWP switching process according to the BWP switching indication signaling and the time domain resource of the target PDCCH candidate; The method of claim 1 , wherein the target PDCCH candidate is a last PDCCH candidate on a time domain resource among the X PDCCH candidates.

12. The step of performing the target operation includes: The UE performs a BWP switching process after a first time length from a transmission start time of a transmission unit in which the target PDCCH candidate is located; Or, When the X PDCCH candidates satisfy a third condition and a time domain resource occupied by the target PDCCH candidate in one transmission unit exceeds a first threshold, the UE performs a BWP switching process after a first time length from a transmission start time of a first transmission unit; Or, when the X PDCCH candidates satisfy a third condition and a time offset amount between a first time of the target PDCCH candidate and a first time of a second PDCCH candidate is greater than a second threshold, the UE performs a BWP switching process after a first time length from a transmission start time of a first transmission unit; Or, performing a BWP switching process by the UE after a second length of time from a transmission start time of a second transmission unit or after a first length of time from a transmission start time of a first transmission unit, if the X PDCCH candidates satisfy a fourth condition; Wherein, the first transmission unit is a transmission unit in which the second PDCCH candidate is located, the second PDCCH candidate is a first PDCCH candidate on a time domain resource among the X PDCCH candidates, the first time includes any one of a transmission start time and a transmission end time, and the second transmission unit is a transmission unit in which the target PDCCH candidate is located; The method of claim 11 , wherein the first length of time comprises a preset reservation switch time and a preset length of time, and the second length of time is the preset reservation switch time.

13. The third condition is that the X PDCCH candidates are transmitted in the same transmission unit, and the fourth condition is that the X PDCCH candidates are transmitted in different transmission units; The method of claim 12 , wherein the second threshold is a threshold that the UE reports to the network side equipment.

14. Before the UE performs a target operation based on a time domain resource of a target PDCCH candidate, the method includes: The method further includes the UE obtaining a first signaling, the first signaling including one of a secondary cell dormancy indication signaling and a semi-persistent PDSCH scheduling release indication signaling; The UE performing a target operation based on a time domain resource of a target PDCCH candidate, The UE sends decision information to a network side device according to the first signaling and the time domain resource of the target PDCCH candidate; The method of claim 1 , wherein the target PDCCH candidate is a last PDCCH candidate on a time domain resource among the X PDCCH candidates.

15. The step of transmitting the determination information to the network side device includes: The method of claim 14, comprising: the UE transmitting the decision information to the network side equipment J symbols after a stop symbol on the time domain resource of the target PDCCH candidate, where J is a positive integer.

16. Before the UE performs a target operation based on a time domain resource of a target PDCCH candidate, the method includes: The method further includes the UE obtaining a PDSCH scheduling signaling. The UE performing a target operation based on a time domain resource of a target PDCCH candidate, determining a scheduling pattern of a PDSCH by the UE based on the PDSCH scheduling signaling and a time domain resource of the target PDCCH candidate; Wherein, the starting symbol on the time domain resource of the target PDCCH candidate is transmitted in the same transmission unit as the starting symbol on the time domain resource of the PDSCH, and the target PDCCH candidate is: Among the X PDCCH candidates, a first PDCCH candidate or a last PDCCH candidate on a time domain resource; Among the X PDCCH candidates, a PDCCH candidate having a largest index value of an associated search space or a PDCCH candidate having a smallest index value of an associated search space; The method of claim 1 , wherein the X PDCCH candidates include one of a PDCCH candidate with a highest index value of an associated control resource set or a PDCCH candidate with a lowest index value of an associated control resource set.

17. 17. The method of claim 16, wherein if a target PDCCH candidate is a last PDCCH candidate on a time domain resource among the X PDCCH candidates, the scheduling pattern of the PDSCH is determined based on a first parameter value.

18. Specifically, the first parameter value is A starting symbol on the time domain resource of the PDSCH is advanced by T symbols or delayed by T symbols with respect to a starting symbol position on the time domain resource of the target PDCCH candidate, where T is a positive integer; and a position of the scheduling start symbol of the PDSCH relative to a target symbol; Here, an interval between the target symbol and a first symbol or a last symbol on a time domain resource in any one of the X PDCCH candidates is a target numerical value; The method of claim 17, wherein the target value is determined by one of a preset value and a value determined by a network side device based on capabilities reported by the UE.

19. When the PDSCH adopts a first mapping manner, the symbols on the time domain resources of the target PDCCH candidate are located in the first R symbols of the same transmission unit, where R is a positive integer; 17. The method of claim 16, wherein if the PDSCH employs a second mapping scheme, a starting symbol on a time domain resource of the target PDCCH candidate is not later than a starting symbol on a time domain resource of the PDSCH.

20. A PDCCH repetitive transmission method, A network side device transmits the repeatedly transmitted X PDCCH candidates to a UE; The network side device transmits a hypothesized first blind decoding number of the X PDCCH candidates to the UE.

21. Before the network side equipment transmits the assumed first blind decoding times of the X PDCCH candidates to the UE, the method further comprises: The network side device receives a blind decoding count for demodulating the repeatedly transmitted PDCCH reported by the UE; The method of claim 20, further comprising: determining the first blind decoding number based on a blind decoding number for demodulating the repeatedly transmitted PDCCH by the network side device.

22. A PDCCH repetitive transmission device, comprising: a determining module and an executing module, The determination module is used to determine X (X is an integer greater than 1) PDCCH candidates that are repeatedly transmitted when receiving a repeatedly transmitted PDCCH; The execution module is used for executing an overbooking rule based on the assumed first blind decoding times of the X PDCCH candidates determined by the determination module, or for performing a target operation based on a time domain resource of a target PDCCH candidate; Here, a search space corresponding to the X PDCCH candidates is associated with the target PDCCH candidate, and the target PDCCH candidate is a PDCCH candidate among the X PDCCH candidates that satisfies a predetermined condition.

23. The first blind decoding iteration is The number of blind decoding times for demodulating the repeatedly transmitted PDCCH, which is assumed by default; The number of blind decodings for demodulating the repeatedly transmitted PDCCH reported by the PDCCH repeated transmission device; The PDCCH repeat transmission device of claim 22, wherein the network side equipment determines the number of blind decodings based on the number of blind decodings for demodulating the repeatedly transmitted PDCCH reported by the PDCCH repeat transmission device.

24. The PDCCH repeat transmission device according to claim 22, wherein the execution module is specifically used for the PDCCH repeat transmission device to execute the overbooking rule based on the first blind decoding number according to a predetermined rule.

25. The predetermined rule is: Each PDCCH candidate among the X PDCCH candidates is associated with a different search space; and The PDCCH candidates associated with the search space having a small index value are calculated according to a third blind decoding number, and the PDCCH candidates associated with the search space having a large index value are calculated according to a fourth blind decoding number; The PDCCH repetition transmission device according to claim 24, wherein the fourth blind decoding count is equal to or greater than the third blind decoding count.

26. If each PDCCH candidate among the X PDCCH candidates is transmitted in the same transmission unit, and the X PDCCH candidates do not completely overlap on the time domain resource, The last symbol of a PDCCH candidate associated with a search space having a larger index value is later than the last symbol of a PDCCH candidate associated with a search space having a smaller index value; Alternatively, a first symbol of a PDCCH candidate associated with a search space having a larger index value is later than a first symbol of a PDCCH candidate associated with a search space having a smaller index value.

27. The predetermined rule is: When the first blind decoding number is equal to X, each PDCCH candidate is calculated by one blind decoding, and if the Xth blind decoding exceeds the blind decoding capability reported by the PDCCH repeated transmission device, the repeatedly transmitted PDCCH is calculated by X-1 times blind decoding; When the first blind decoding number is equal to X, each PDCCH candidate is calculated by one blind decoding, and if the X-th blind decoding does not exceed the blind decoding capability reported by the PDCCH repeated transmission device, the repeatedly transmitted PDCCH is calculated by X-th blind decoding, and the X-th blind decoding is a blind decoding performed on the combined soft bit information corresponding to the X PDCCH candidates, Wherein, the blind decoding performed on the combined soft bit information is related to a first search space, The PDCCH repetition transmission device according to claim 24, wherein the first search space is a predetermined specific search space or a specific search space configured by a network side device, and the first search space is used for blind decoding of the integrated soft bit information.

28. Transmit M search space-related groups in the same transmission unit, each search space-related group including X search spaces, and the X search spaces correspond one-to-one to the X PDCCH candidates; In each search space-associated group, there are K candidate PDCCH sets, each candidate PDCCH set including X PDCCH candidates; The total number of candidate PDCCH sets transmitted in the same transmission unit is H, wherein the value of M is determined by one of a preset value and a value determined by a network side device based on the capability reported by the UE; the value of K is determined by one of a preset value and a value determined by a network side device based on the capability reported by the UE; and the value of H is determined by one of a preset value and a value determined by a network side device based on the capability reported by the UE.

29. The execution module is specifically used for: determining that the transmission behavior of the X PDCCH candidates is a repeated transmission behavior when any one PDCCH candidate among the X PDCCH candidates satisfies a first condition; and executing an overbooking rule based on a first assumed blind decoding number of the X PDCCH candidates; The PDCCH repeat transmission device according to claim 22, wherein the first condition is that a time-frequency resource of any one of the PDCCH candidates collides with a target time-frequency resource.

30. 30. The PDCCH repetitive transmission device of claim 29, wherein the target time-frequency resource includes any one of a time-frequency resource of a synchronization signal block (SSB), a time-frequency resource of a specific reference signal (CRS) of a cell configured by a higher layer, a time-frequency resource for indicating another physical downlink shared channel (PDSCH) rate matching, and an unavailable time-frequency resource configured by a higher layer.

31. The execution module is further used for monitoring the X PDCCH candidates and the Y PDCCH candidates when a second condition is satisfied; Wherein, the second condition includes that the PDCCH repeat transmission device reports target capability, that the Y PDCCH candidates are not used for PDCCH repeat transmission, that the reception beams associated with the Y PDCCH candidates are different, and that the time domain resources of the Y PDCCHs overlap; The PDCCH repeat transmission apparatus according to claim 22, wherein the target capability is a capability of the PDCCH repeat transmission apparatus to simultaneously receive PDCCH candidates associated with different beams.

32. The PDCCH repeat transmission device further includes an acquisition module; The acquiring module is used for acquiring a BWP switching indication signaling; The executing module is specifically used for performing a BWP switching process according to the BWP switching indication signaling and the time domain resource of the target PDCCH candidate acquired by the acquiring module; The PDCCH repeat transmission apparatus according to claim 22, wherein the target PDCCH candidate is a last PDCCH candidate on a time domain resource among the X PDCCH candidates.

33. The execution module specifically includes: the PDCCH repetition transmission device executes a BWP switching process after a first time length from a transmission start time of a transmission unit in which the target PDCCH candidate is located; Or, When the X PDCCH candidates satisfy a third condition and a time domain resource occupied by the target PDCCH candidate in one transmission unit exceeds a first threshold, the PDCCH repetitive transmission device performs a BWP switching process after a first time length from a transmission start time of a first transmission unit; Or, When the X PDCCH candidates satisfy a third condition and a time offset amount between a first time of the target PDCCH candidate and a first time of a second PDCCH candidate is greater than a second threshold, the PDCCH repetitive transmission device performs a BWP switching process after a first time length from a transmission start time of a first transmission unit; Or, When the X PDCCH candidates satisfy a fourth condition, the PDCCH repetition transmission device is used to perform a BWP switching process after a second time length from a transmission start time of a second transmission unit or after a first time length from a transmission start time of a first transmission unit; Wherein, the first transmission unit is a transmission unit in which the second PDCCH candidate is located, the second PDCCH candidate is a first PDCCH candidate on a time domain resource among the X PDCCH candidates, the first time includes any one of a transmission start time and a transmission end time, and the second transmission unit is a transmission unit in which the target PDCCH candidate is located; The PDCCH repetitive transmission device according to claim 32 , wherein the first time length includes a preset switching reservation time and a preset time length, and the second time length is the preset switching reservation time.

34. The third condition is that the X PDCCH candidates are transmitted in the same transmission unit, and the fourth condition is that the X PDCCH candidates are transmitted in different transmission units; The PDCCH repeat transmission device according to claim 33, wherein the second threshold value is a threshold value reported by the PDCCH repeat transmission device to the network side device.

35. The PDCCH repeat transmission device further includes an acquisition module; The acquiring module is used to acquire a first signaling, and the first signaling includes one of a secondary cell dormancy indication signaling and a semi-persistent PDSCH scheduling release indication signaling; The executing module is specifically used for sending decision information to a network side device according to the first signaling and the time domain resource of the target PDCCH candidate acquired by the acquiring module; The PDCCH repeat transmission apparatus according to claim 22, wherein the target PDCCH candidate is a last PDCCH candidate on a time domain resource among the X PDCCH candidates.

36. The PDCCH repeat transmission device of claim 35, wherein the execution module is specifically used for sending the decision information to the network side device after J symbols from an end symbol on the time domain resource of the target PDCCH candidate, where J is a positive integer.

37. The PDCCH repeat transmission device further includes an acquisition module; The acquiring module is used to acquire PDSCH scheduling signaling, The executing module is specifically used for determining a scheduling pattern of a PDSCH according to the PDSCH scheduling signaling and the time domain resource of the target PDCCH candidate acquired by the acquiring module; Wherein, the starting symbol on the time domain resource of the target PDCCH candidate is transmitted in the same transmission unit as the starting symbol on the time domain resource of the PDSCH, and the target PDCCH candidate is: Among the X PDCCH candidates, a first PDCCH candidate or a last PDCCH candidate on a time domain resource; Among the X PDCCH candidates, a PDCCH candidate having a largest index value of an associated search space or a PDCCH candidate having a smallest index value of an associated search space; The PDCCH repeat transmission device of claim 22, wherein the X PDCCH candidates include one of a PDCCH candidate having a highest index value of an associated control resource set, or a PDCCH candidate having a lowest index value of an associated control resource set.

38. The PDCCH repeat transmission device according to claim 37, wherein, when a target PDCCH candidate is a last PDCCH candidate on a time domain resource among the X PDCCH candidates, the scheduling pattern of the PDSCH is determined based on a first parameter value.

39. Specifically, the first parameter value is A starting symbol on the time domain resource of the PDSCH is advanced by T symbols or delayed by T symbols with respect to a starting symbol position on the time domain resource of the target PDCCH candidate, where T is a positive integer; and a position of the scheduling start symbol of the PDSCH relative to a target symbol; Here, an interval between the target symbol and a first symbol or a last symbol on a time domain resource in any one of the X PDCCH candidates is a target numerical value; The PDCCH repeat transmission apparatus of claim 38, wherein the target value is determined by one of a preset value and a value determined by a network side device based on a capability reported by the UE.

40. When the PDSCH adopts a first mapping manner, the symbols on the time domain resources of the target PDCCH candidate are located in the first R symbols of the same transmission unit, where R is a positive integer; The PDCCH repeat transmission device according to claim 37, wherein, when the PDSCH employs a second mapping scheme, a starting symbol on a time domain resource of the target PDCCH candidate is not later than a starting symbol on a time domain resource of the PDSCH.

41. A PDCCH repetitive transmission device, comprising: a transmission module, A PDCCH repeated transmission device, wherein the transmission module is used for transmitting X PDCCH candidates repeatedly transmitted to a UE, and transmitting a hypothesized first blind decoding number of the X PDCCH candidates to the UE.

42. The PDDCH repeat transmission device includes a receiving module and a determining module; The receiving module is used for receiving a blind decoding number of demodulating a repeatedly transmitted PDCCH reported by the UE; The PDCCH repeated transmission device according to claim 41, wherein the determination module is used for determining the first blind decoding number based on a blind decoding number for demodulating the repeatedly transmitted PDCCH.

43. A UE comprising a processor, a memory, and a program or instructions stored in the memory and operable on the processor, the program or instructions implementing the steps of a PDCCH repeat transmission method according to any one of claims 1 to 19 when executed by the processor.

44. A network side device comprising a processor, a memory, and a program or instructions stored in the memory and operable on the processor, the network side device realizing the steps of the PDCCH repeat transmission method according to claim 20 or 21 when the program or instructions are executed by the processor.

45. A readable storage medium having a program or instructions stored therein, the program or instructions being executed by a processor to realize the PDCCH repeat transmission method according to any one of claims 1 to 19, or to realize the steps of the PDCCH repeat transmission method according to claim 20 or 21.

Images