Communication methods, apparatuses and system, storage medium and program product

Abstract

The present disclosure relates to communication methods, apparatuses and system, a storage medium and a program product. A method comprises: receiving first indication information from a network device, wherein the first indication information is used for indicating: the number of repeated transmissions of a physical downlink control channel (PDCCH) corresponding to a system information block (SIB1) and / or the number of repeated transmissions of a physical downlink shared channel (PDSCH) corresponding to SIB1. The communication methods, apparatuses and system, the storage medium and the program product provided in the present disclosure are used for increasing the number of transmissions of downlink channels so as to enhance the coverage of the downlink channels, thereby enhancing the coverage of SIB1.

Description

Communication methods, devices, systems, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, apparatus, system, storage medium, and program product. Background Technology

[0002] In related technologies, the downlink channel between network devices and terminal devices includes the Physical Downlink Control Channel (PDCCH) and the Physical Downlink Shared Channel (PDSCH). The PDCCH is used to schedule the PDSCH, and the PDSCH can carry broadcast information, which may include at least system information block 1 (SIB 1).

[0003] Currently, related technologies only support one downlink channel transmission, that is, only one SIB 1 transmission. Summary of the Invention

[0004] This disclosure provides a communication method, apparatus, system, storage medium, and program product for increasing the number of downlink channel transmissions to enhance downlink channel coverage and thus enhance SIB 1 coverage.

[0005] In a first aspect, embodiments of this disclosure provide a communication method executed by a terminal device, the method comprising:

[0006] Receive the first instruction information from the network device;

[0007] The first indication information is used to indicate the number of times the physical downlink control channel (PDCCH) corresponding to system information block SIB1 is repeatedly transmitted, and / or the number of times the physical downlink shared channel (PDSCH) corresponding to SIB1 is repeatedly transmitted.

[0008] In conjunction with the communication method provided in the first aspect, the terminal device receives first indication information from the network device. This first indication information indicates the number of times the PDCCH corresponding to SIB1 is repeatedly transmitted and / or the number of times the PDSCH corresponding to SIB1 is repeatedly transmitted. This ensures that the terminal device correctly receives the downlink channel when the network device repeatedly transmits the downlink channel (PDCCH and PDSCH), thereby enhancing the coverage of the downlink channel and consequently enhancing the coverage of SIB1.

[0009] Secondly, embodiments of this disclosure provide a communication method executed by a network device, the method comprising:

[0010] Send the first instruction information to the terminal device;

[0011] The first indication information is used to indicate the number of times the physical downlink control channel (PDCCH) corresponding to system information block SIB1 is repeatedly transmitted, and / or the number of times the physical downlink shared channel (PDSCH) corresponding to SIB1 is repeatedly transmitted.

[0012] In conjunction with the communication method provided in the first aspect, the network device sends a first indication information to the terminal device. The first indication information is used to indicate the number of times the PDCCH corresponding to SIB1 is repeatedly transmitted and / or the number of times the PDSCH corresponding to SIB1 is repeatedly transmitted. This can ensure that the terminal device correctly receives the downlink channel when the network device repeatedly transmits the downlink channel (PDCCH and PDSCH), thereby enhancing the coverage of the downlink channel and thus enhancing the coverage of SIB1.

[0013] Thirdly, embodiments of this disclosure provide a communication device, including:

[0014] The transceiver module is used to receive first indication information from the network device;

[0015] The first indication information is used to indicate the number of times the physical downlink control channel (PDCCH) corresponding to system information block SIB1 is repeatedly transmitted, and / or the number of times the physical downlink shared channel (PDSCH) corresponding to SIB1 is repeatedly transmitted.

[0016] Fourthly, embodiments of this disclosure provide a communication device, comprising:

[0017] The transceiver module is used to send the first instruction information to the terminal device;

[0018] The first indication information is used to indicate the number of times the physical downlink control channel (PDCCH) corresponding to system information block SIB1 is repeatedly transmitted, and / or the number of times the physical downlink shared channel (PDSCH) corresponding to SIB1 is repeatedly transmitted.

[0019] Fifthly, embodiments of this disclosure provide a terminal device, including: one or more processors; wherein the terminal device is configured to execute the communication method of any one of the first aspects.

[0020] In a sixth aspect, embodiments of this disclosure provide a network device comprising: one or more processors; wherein the network device is configured to perform the communication method of any of the second aspects.

[0021] In a seventh aspect, embodiments of this disclosure provide a communication system, including: a terminal device and a network device; wherein the terminal device is configured to implement the communication method of any one of the first aspects; and the network device is configured to implement the communication method of any one of the second aspects.

[0022] Eighthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, implement a communication method as described in either the first or second aspect.

[0023] In a ninth aspect, embodiments of this disclosure provide a program product comprising a program and / or instructions, which, when executed by a communication device, implement the communication method as described in the first or second aspect. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0025] Figure 1a is a schematic diagram of the multiplexing mode 1 of the synchronization signal block (SS / PBCH block, SSB) and control resource set (CORESET#0) provided in the embodiments of this disclosure;

[0026] Figure 1b is a schematic diagram of the structure of the multiplexing mode 2 of SSB and CORESET#0 provided in the embodiments of this disclosure;

[0027] Figure 1c is a schematic diagram of the structure of the multiplexing mode 3 of SSB and CORESET#0 provided in the embodiments of this disclosure;

[0028] Figure 2a is an exemplary flowchart of a communication method provided in an embodiment of this disclosure;

[0029] Figure 2b is an exemplary flowchart of a communication method provided in an embodiment of this disclosure;

[0030] Figure 2c is an exemplary flowchart of a communication method provided in an embodiment of this disclosure;

[0031] Figure 2d is an exemplary flowchart of a communication method provided in an embodiment of this disclosure;

[0032] Figure 3a is a repeating pattern of PDCCH and PDSCH provided in an embodiment of this disclosure;

[0033] Figure 3b is a repeating pattern of PDCCH and PDSCH provided in an embodiment of this disclosure;

[0034] Figure 3c is a repeating pattern of PDCCH and PDSCH provided in an embodiment of this disclosure;

[0035] Figure 4a is an exemplary structural schematic diagram of a communication device provided according to an embodiment of the present disclosure;

[0036] Figure 4b is an exemplary structural schematic diagram of a communication device provided according to an embodiment of the present disclosure;

[0037] Figure 5a is an exemplary structural diagram of a communication device provided according to an embodiment of the present disclosure;

[0038] Figure 5b is an exemplary structural diagram of a chip provided according to an embodiment of the present disclosure. Detailed Implementation

[0039] This disclosure provides a communication method, apparatus, system, storage medium, and program product for increasing the number of downlink channel transmissions to enhance downlink channel coverage and thus enhance SIB 1 coverage.

[0040] In a first aspect, embodiments of this disclosure provide a communication method executed by a terminal device, the method comprising:

[0041] Receive the first instruction information from the network device;

[0042] The first indication information is used to indicate the number of times the physical downlink control channel (PDCCH) corresponding to system information block SIB1 is repeatedly transmitted, and / or the number of times the physical downlink shared channel (PDSCH) corresponding to SIB1 is repeatedly transmitted.

[0043] In conjunction with the communication method provided in the first aspect, the terminal device receives first indication information from the network device. This first indication information indicates the number of times the PDCCH corresponding to SIB1 is repeatedly transmitted and / or the number of times the PDSCH corresponding to SIB1 is repeatedly transmitted. This ensures that the terminal device correctly receives the downlink channel when the network device repeatedly transmits the downlink channel (PDCCH and PDSCH), thereby enhancing the coverage of the downlink channel and consequently enhancing the coverage of SIB1.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, receiving first indication information from a network device includes:

[0045] Receive the Physical Broadcast Channel (PBCH) from the network device. The PBCH carries the first indication information.

[0046] In this embodiment, by carrying the first indication information through PBCH, there is no need to use other signaling / or messages to carry the first indication information, which can save the signaling overhead of transmitting the first indication information.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the main information block (MIB) of the PBCH carries first indication information.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the reserved bits of the MIB carry first indication information.

[0049] In this embodiment, by using the reserved bits of the MIB to carry the first indication information, the reserved bits can be effectively utilized, avoiding wasted bit overhead.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, the load information of the PBCH carries first indication information, and the load information is load information generated by the physical layer of the network device.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, the reserved bits of the load information carry the first indication information.

[0052] In this embodiment, by using the reserved bits of the load information to carry the first indication information, the reserved bits can be effectively utilized, avoiding wasted bit overhead.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the first indication information occupies 1 bit;

[0054] The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is K, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1 is K;

[0055] Where K is an integer greater than or equal to 2.

[0056] In conjunction with this embodiment, the first indication information can indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is K and / or the number of repeated transmissions of the PDSCH corresponding to SIB1 is K, where K is an integer greater than or equal to 2, which can achieve the purpose of flexibly indicating K through the first indication information.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the first indication information occupies 2 bits;

[0058] The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is M, and the number of repeated transmissions of the PDSCH corresponding to SIB1 is N.

[0059] Where M is an integer greater than or equal to 2, N is an integer greater than or equal to 2, and M is greater than or equal to N.

[0060] In conjunction with this embodiment, the first indication information can indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is K and / or the number of repeated transmissions of the PDSCH corresponding to SIB1 is K, where K is an integer greater than or equal to 2. This allows for flexible indication of the number of repeated transmissions of the PDCCH corresponding to SIB1 and / or the number of repeated transmissions of the PDSCH corresponding to SIB1 through the first indication information.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the first indication information indicates that the number of repeated transmissions of the PDCCH corresponding to SIB1 is greater than or equal to 2; the method further includes: receiving at least two repeatedly transmitted PDCCHs from the network device, wherein the SIB1 corresponding to the at least two repeatedly transmitted PDCCHs is the same.

[0062] In conjunction with some embodiments of the first aspect, in some embodiments, at least two repeatedly transmitted PDCCHs include a first PDCCH and a second PDCCH; receiving at least two repeatedly transmitted PDCCHs includes: detecting the reception of the first PDCCH according to a first listening timing; and detecting the reception of the second PDCCH according to a second listening timing.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: receiving second indication information from a network device. The second indication information is used to indicate a first set of PDCCH listening timing parameters corresponding to the first PDCCH, and the first set of PDCCH listening timing parameters is used by the terminal device to determine the first listening timing.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the index n0 of the first time slot in which the first listening opportunity occurs satisfies:

[0065] Where O0 represents the time offset for listening to the first PDCCH in a radio frame, M0 represents the first number of control resource sets in the time slot associated with the first PDCCH, μ represents the subcarrier spacing parameter of the control resource set CORESET#0 corresponding to the first PDCCH, and i represents the index of the synchronization signal block SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. The floor function represents rounding down, and mod represents modulo operation.

[0066] The first set of PDCCH monitoring timing parameters includes O0 and M0.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the time interval between the second listening time and the end time of the first symbol is a first duration; the first symbol is the last symbol of the control resource set CORESET#0 corresponding to the first PDCCH.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the first duration is the total duration of L1 time slots, where L1 is an integer greater than or equal to 1; or, the first duration is the total duration of L2 symbols, where L2 is an integer greater than or equal to 2.

[0069] In conjunction with some embodiments of the first aspect, in some embodiments, the second indication information is also used to indicate a second set of PDCCH listening timing parameters, which are used by the terminal device to determine the second listening timing.

[0070] In conjunction with this embodiment, by indicating the first set of PDCCH listening timing parameters and the second set of PDCCH listening timing parameters through the second indication information, the bit overhead of indicating the first set of PDCCH listening timing parameters and the second set of PDCCH listening timing parameters can be reduced.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: receiving third indication information from a network device. The third indication information is used to indicate a second set of PDCCH listening timing parameters corresponding to the second PDCCH, and the second set of PDCCH listening timing parameters is used by the terminal device to determine the second listening timing.

[0072] In conjunction with this embodiment, by indicating the first set of PDCCH monitoring timing parameters through the second indication information and by indicating the second set of PDCCH monitoring timing parameters through the third indication information, it can be ensured that the terminal device correctly determines the second monitoring timing.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, the index n1 of the first time slot in which the second listening opportunity occurs satisfies: Where O1 represents the time offset for listening to the second PDCCH in a radio frame, M1 represents the second number of control resource sets in the time slot associated with the second PDCCH, μ represents the subcarrier spacing parameter of control resource set CORESET#0, CORESET#0 is used to indicate the size of the time-frequency domain resources where at least two repetitive PDCCHs are located, and i represents the index of the SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. The first option indicates the floor function, and the second option indicates the modulo function. The second set of PDCCH listening timing parameters includes O1 and M1. The CORESET#0 corresponding to the second PDCCH is the same as the CORESET#0 corresponding to the first PDCCH.

[0074] Secondly, embodiments of this disclosure provide a communication method performed by a network device, the method comprising:

[0075] Send the first instruction information to the terminal device;

[0076] The first indication information is used to indicate the number of times the physical downlink control channel (PDCCH) corresponding to system information block SIB1 is repeatedly transmitted, and / or the number of times the physical downlink shared channel (PDSCH) corresponding to SIB1 is repeatedly transmitted.

[0077] In conjunction with some embodiments of the second aspect, in some embodiments, sending first instruction information to the terminal device includes:

[0078] The Physical Broadcast Channel (PBCH) is sent to the terminal device, and the PBCH carries the first indication information.

[0079] In conjunction with some embodiments of the second aspect, in some embodiments, the main information block (MIB) of the PBCH carries first indication information.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the reserved bits of the MIB carry first indication information.

[0081] In conjunction with some embodiments of the second aspect, in some embodiments, the load information of the PBCH carries first indication information, and the load information is load information generated by the physical layer of the network device.

[0082] In conjunction with some embodiments of the second aspect, in some embodiments, the reserved bits of the load information carry the first indication information.

[0083] In conjunction with some embodiments of the second aspect, in some embodiments, the first indication information occupies 1 bit;

[0084] The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is K, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1 is K;

[0085] Where K is an integer greater than or equal to 2.

[0086] In conjunction with some embodiments of the second aspect, in some embodiments, the first indication information occupies 2 bits;

[0087] The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is M, and the number of repeated transmissions of the PDSCH corresponding to SIB1 is N.

[0088] Where M is an integer greater than or equal to 2, N is an integer greater than or equal to 2, and M is greater than or equal to N.

[0089] In conjunction with some embodiments of the second aspect, in some embodiments, the first indication information indicates that the number of repeated transmissions of the PDCCH corresponding to SIB1 is greater than or equal to 2; the method further includes:

[0090] Send at least two duplicate PDCCHs to the terminal device, wherein the SIB1 corresponding to the at least two duplicate PDCCHs is the same.

[0091] In conjunction with some embodiments of the second aspect, in some embodiments, at least two repeatedly transmitted PDCCHs include a first PDCCH and a second PDCCH;

[0092] Send at least two repeated PDCCH transmissions, including:

[0093] At the first listening opportunity, send the first PDCCH;

[0094] At the second listening time, send the second PDCCH.

[0095] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0096] Send a second indication message to the terminal device. The second indication message is used to indicate the first set of PDCCH listening timing parameters corresponding to the first PDCCH. The first set of PDCCH listening timing parameters is used by the terminal device to determine the first listening timing.

[0097] In conjunction with some embodiments of the second aspect, in some embodiments, the index n0 of the first time slot in which the first listening opportunity occurs satisfies: Where O0 represents the time offset for listening to the first PDCCH in a radio frame, M0 represents the first number of control resource sets in the time slot associated with the first PDCCH, μ represents the subcarrier spacing parameter of the control resource set CORESET#0 corresponding to the first PDCCH, and i represents the index of the synchronization signal block SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. 0 represents floor operation, mod represents modulo operation; the first group of PDCCH listening timing parameters includes O0 and M0.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, the time interval between the second listening opportunity and the end time of the first symbol is a first duration;

[0099] The first symbol is the last symbol of the control resource set CORESET#0 corresponding to the first PDCCH.

[0100] In conjunction with some embodiments of the second aspect, in some embodiments, the first duration is the total duration of L1 time slots, where L1 is an integer greater than or equal to 1; or, the first duration is the total duration of L2 symbols, where L2 is an integer greater than or equal to 2.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, the second indication information is also used to indicate a second set of PDCCH listening timing parameters, which are used by the terminal device to determine the second listening timing.

[0102] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending third indication information to a terminal device, the third indication information being used to indicate a second set of PDCCH listening timing parameters corresponding to the second PDCCH, the second set of PDCCH listening timing parameters being used by the terminal device to determine the second listening timing.

[0103] In conjunction with some embodiments of the second aspect, in some embodiments, the index n1 of the first time slot where the second listening opportunity occurs satisfies: Where O1 represents the time offset for listening to the second PDCCH in a radio frame, M1 represents the second number of control resource sets in the time slot associated with the second PDCCH, μ represents the subcarrier spacing parameter of CORESET#0 corresponding to the second PDCCH, and i represents the index of the SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. The first option indicates the floor function, and the second option indicates the modulo function. The second set of PDCCH listening timing parameters includes O1 and M1. The CORESET#0 corresponding to the second PDCCH is the same as the CORESET#0 corresponding to the first PDCCH.

[0104] Thirdly, embodiments of this disclosure provide a communication device, including:

[0105] The transceiver module is used to receive first indication information from the network device;

[0106] The first indication information is used to indicate the number of times the physical downlink control channel (PDCCH) corresponding to system information block SIB1 is repeatedly transmitted, and / or the number of times the physical downlink shared channel (PDSCH) corresponding to SIB1 is repeatedly transmitted.

[0107] Fourthly, embodiments of this disclosure provide a communication device, comprising:

[0108] The transceiver module is used to send the first instruction information to the terminal device;

[0109] The first indication information is used to indicate the number of times the physical downlink control channel (PDCCH) corresponding to system information block SIB1 is repeatedly transmitted, and / or the number of times the physical downlink shared channel (PDSCH) corresponding to SIB1 is repeatedly transmitted.

[0110] Fifthly, embodiments of this disclosure provide a terminal device, including: one or more processors; wherein the terminal device is configured to execute the communication method of any one of the first aspects.

[0111] In a sixth aspect, a network device is proposed, comprising: one or more processors; wherein the network device is used to perform the communication method of any of the second aspects.

[0112] In the seventh aspect, a communication system is proposed, including: terminal equipment and / or network equipment;

[0113] The terminal device is configured to implement the communication method of any one of the first aspects; the network device is configured to implement the communication method of any one of the second aspects.

[0114] Eighthly, a storage medium is proposed, which stores instructions that, when executed on a communication device, implement a communication method as described in either the first or second aspect.

[0115] In the ninth aspect, a program product is proposed, comprising a program and / or instructions, which, when executed by a communication device, implement a communication method as described in either the first or second aspect.

[0116] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform a communication method as described in either the first or second aspect.

[0117] Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the communication method described in either the first or second aspect.

[0118] It is understood that the aforementioned communication devices, terminal equipment, network equipment, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the first aspect, and will not be repeated here.

[0119] This disclosure provides a communication method, apparatus, system, storage medium, and program product. In some embodiments, the terms "communication method" and "bearer processing method," "information transmission method," etc., can be used interchangeably; the terms "communication method apparatus" and "bearer processing apparatus," "communication apparatus," etc., can be used interchangeably.

[0120] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0121] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0122] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0123] The following explains the terminology used in the embodiments of this disclosure.

[0124] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the aforementioned," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0125] In the embodiments of this disclosure, "multiple" refers to two or more.

[0126] In the embodiments disclosed herein, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., can be used interchangeably.

[0127] In the embodiments of this disclosure, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0128] In the embodiments of this disclosure, the notation "A or B" may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0129] In the embodiments of this disclosure, prefixes such as "first" and "second" are used merely to distinguish different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is based on the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0130] In the embodiments disclosed herein, "including A", "containing A", "for indicating A", and "carrying A" can be interpreted as directly carrying A or indirectly indicating A.

[0131] In the embodiments disclosed herein, terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not lower than”, and “above” can be substituted for each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “not more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be substituted for each other.

[0132] In the embodiments of this disclosure, the apparatus and device can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0133] In this embodiment of the disclosure, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0134] In this embodiment of the disclosure, data, information, etc., can be obtained after obtaining the user's consent.

[0135] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0136] The following explains the terminology used in the embodiments of this disclosure.

[0137] Terminal devices include, but are not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0138] Network equipment includes, for example, nodes or devices that connect terminal devices to a wireless network. Network equipment can be satellites, spaceborne base stations, or base stations. Base stations can be at least one of the following in 5G communication systems: evolved NodeB (eNB), next-generation eNB (ng-eNB), next-generation NodeB (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul equipment, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in 6G communication systems, open RAN, cloud RAN, base stations in other communication systems, and access nodes in Wi-Fi systems, but are not limited to these.

[0139] Control resource set 0 (CORESET#0) represents the size of the resources used for blind detection of the PDCCH corresponding to SIB1. The PDCCH corresponding to SIB1 is used to schedule the PDSCH corresponding to SIB1. The PDSCH carries broadcast information. The broadcast information includes at least SIB1, and also includes at least paging messages and random access responses. The downlink control information format 0 (DCI format 0) of the PDCCH carries the downlink control information for scheduling this broadcast information.

[0140] The Type0-PDCCH Common Search Space (Type0-PDCCH CSS) includes a set of PDCCH listening timing parameters, which are used to determine the listening timing for blind detection of the PDCCH corresponding to SIB1.

[0141] The four most significant bits (MSB) in the field (pdcch-ConfigSIB1) of the Master Indication Block (MIB) are used to indicate the resource configuration of CORESET#0. The four least significant bits (LSB) in pdcch-ConfigSIB1 are used to indicate a set of PDCCH listening timing parameters.

[0142] In some embodiments, the resource configuration of CORESET#0 is obtained from the table related to CORESET#0 based on the indexes corresponding to the four MSBs. The resource configuration of CORESET#0 includes: the multiplexing pattern between SSB and CORESET#0 (SS / PBCH block and CORESET multiplexing pattern), and the number of contiguous resource blocks (RBs) occupied by CORESET#0. Number of consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols and the number of resource blocks with frequency offset (Offset(RBs)).

[0143] For example, when the subcarrier spacing (SCS) of the SSB is 15 kHz, the subcarrier spacing of the PDCCH is 15 kHz, and the minimum channel bandwidth is 5 MHz (Set of resource blocks and slot symbols of CORESET for Type 0-PDCCH search space set when {SS / PBCH block,PDCCH}SCS is {15,15} kHz for frequency bands with minimum channel bandwidth 3 MHz and channel bandwidth 3 MHz or 5 MHz), the relevant table for CORESET#0 is shown in Table 1 below.

[0144] Table 1

[0145] In some embodiments, the PDCCH listening timing parameters are obtained from the table related to the Type0-PDCCH CSS based on the indices corresponding to the four LSBs. The PDCCH listening timing parameters include O, the number of search space sets per slot, M, and the first symbol index. Here, O represents the time offset for listening to the PDCCH in a radio frame, and M represents the number of control resource sets in a slot. For example, M = 1 means there is 1 control resource set in 1 slot, M = 1 / 2 means there are 2 control resource sets in 1 slot, and M = 2 means there is 1 control resource set in 2 slots.

[0146] For example, when the multiplexing mode of SSB and CORESET#0 is multiplexing mode 1 and the carrier frequency range is FR1, the PDCCH monitoring occasions for Type0 PDCCH CSS set are shown in Table 2 below.

[0147] Table 2

[0148] After obtaining a set of PDCCH listening timing parameters based on the indices corresponding to the four LSBs, the listening timing of the PDCCH is determined according to these parameters. The listening timing can be understood as the radio frame in which the PDCCH is located, the time slot in which the PDCCH is located within that radio frame, and the OFDM symbol in which the PDCCH is located within that time slot.

[0149] The radio frame containing the PDCCH satisfies the following formula: Among them, M frame This indicates the radio frame in which the PDCCH resides, i represents the index of the synchronization signal block (SS / PBCH block, SSB) associated with SIB1, and μ represents the subcarrier spacing parameter of CORESET#0. This indicates the total number of time slots included in a radio frame.

[0150] The index n of the time slot where the PDCCH is located satisfies the following formula:

[0151] The OFDM symbol containing PDCCH is the symbol indicated by the First symbol index.

[0152] When the terminal device performs blind PDCCH detection, it performs blind PDCCH detection / detection reception / listening according to the PDCCH listening timing, or in other words, blind detection / detection reception / listening to PDCCH.

[0153] The following explains the multiplexing modes of SSB and CORESET#0.

[0154] Figure 1a is a schematic diagram of the structure of multiplexing mode 1 of SSB and CORESET#0 provided in the embodiments of this disclosure. As shown in Figure 1a, in multiplexing mode 1 of SSB and CORESET#0, SSB and CORESET#0 are time-division multiplexed in the time domain, that is, SSB and CORESET#0 are located on different symbols in the time domain.

[0155] In multiplexing mode 1 of SSB and CORESET#0, the frequency domain range of CORESET#0 includes the frequency domain range of SSB.

[0156] Figure 1b is a schematic diagram of the structure of multiplexing mode 2 of SSB and CORESET#0 provided in the embodiments of this disclosure. As shown in Figure 1b, in multiplexing mode 2 of SSB and CORESET#0, SSB and CORESET#0 are frequency-division multiplexed in the frequency domain, that is, SSB and CORESET#0 are different in the frequency domain, but SSB and CORESET#0 are located in the same time slot in the time domain.

[0157] In multiplexing mode 2 of SSB and CORESET#0, the frequency domain range of CORESET#0 does not include the frequency domain range of SSB.

[0158] The multiplexing mode 2 of SSB and CORESET#0 is only applicable to cases where the carrier frequency is greater than 6 GHz. It only supports two seed carrier combinations of SSB and PDCCH, namely <120 kHz, 60 kHz> and <240 kHz, 120 kHz>.

[0159] Figure 1c is a schematic diagram of the structure of multiplexing mode 3 of SSB and CORESET#0 provided in the embodiments of this disclosure. As shown in Figure 1c, in multiplexing mode 3 of SSB and CORESET#0, SSB and CORESET#0 are time-division multiplexed in the time domain, that is, SSB and CORESET#0 are in different time slots. SSB and CORESET#0 are frequency-division multiplexed in the frequency domain, that is, SSB and CORESET#0 are not the same in the frequency domain.

[0160] In multiplexing mode 3 of SSB and CORESET#0, the frequency domain range of CORESET0 does not include the frequency domain range of SSB.

[0161] The multiplexing mode 3 of SSB and CORESET#0 is only applicable to carrier frequency range of FR2 and only supports one subcarrier combination of SSB and PDCCH, namely <120kHz, 120kHz>.

[0162] In related technologies, the downlink channel between network devices and terminal devices includes PDCCH and PDSCH. PDCCH is used to schedule PDSCH, and PDSCH can carry broadcast information, which may include at least SIB 1, as well as random access responses and paging messages. Currently, related technologies only support one downlink channel transmission, which can be understood as supporting only one SIB 1 transmission.

[0163] In non-terrestrial networks (NTNs), the distance between network equipment (or satellites) and ground-based terminal equipment is relatively long, resulting in weak downlink coverage when the number of downlink transmissions is low.

[0164] To enhance downlink channel coverage, particularly broadcast information coverage (e.g., enhancing SIB 1 coverage), embodiments of this disclosure provide a communication method, apparatus, system, storage medium, and program product. In this method, a network device sends first indication information to a terminal device. This first indication information indicates the number of times the PDCCH corresponding to SIB 1 is repeatedly transmitted and / or the number of times the PDSCH corresponding to SIB 1 is repeatedly transmitted. Further, the PDCCH and PDSCH corresponding to SIB 1 are repeatedly transmitted according to the number of repetitions to enhance downlink channel coverage, thereby enhancing broadcast information coverage, such as enhancing SIB 1 coverage.

[0165] The following detailed description of the communication methods, apparatus, systems, storage media, and program products provided in this disclosure, in conjunction with various embodiments, provides a comprehensive overview. The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), Super 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications (GSM), 3G mobile communication system (Code Division Multiple Access 2000, CDMA2000), Ultra Mobile Broadband (UMB), Ultra-Wideband (UWB), Bluetooth, and Public Land Mobile Networks. Networks (PLMNs), device-to-device (D2D) systems, machine-to-machine (M2M) systems, Internet of Things (IoT) systems, vehicle-to-everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0166] In some embodiments, the first indication information is used to indicate: the number of repeated transmissions of the PDCCH corresponding to SIB1, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1.

[0167] For example, the first indication information is used to indicate the number of times the PDCCH corresponding to SIB1 is repeatedly transmitted.

[0168] For example, the first indication information is used to indicate the number of times the PDSCH corresponding to SIB1 is repeatedly transmitted.

[0169] For example, the first indication information is used to indicate the number of repeated transmissions of the PDCCH corresponding to SIB1 and the number of repeated transmissions of the PDSCH corresponding to SIB1.

[0170] In some embodiments, the PDCCH corresponding to SIB1 can also be called the PDCCH for scheduling SIB1.

[0171] In some embodiments, the PDSCH corresponding to SIB1 can also be referred to as the PDSCH carrying SIB1.

[0172] In some embodiments, the PDCCH corresponding to SIB1 is used to schedule the PDSCH corresponding to SIB1.

[0173] The following description, in conjunction with Examples 1A and 1B, illustrates how the PBCH carries the first indication information.

[0174] Example 1A: The MIB of the PBCH carries the first indication information.

[0175] In some embodiments, the spare bit of the MIB carries first indication information.

[0176] Example 1B: The PBCH load information carries the first indication information, which is the load information generated by the physical layer of the network device.

[0177] In some embodiments, the reserved bits of the payload information carry first indication information.

[0178] In some embodiments, the reserved bits for the payload information may include the PBCH payload bits. The sixth bit in and / or the seventh bit

[0179] In some embodiments, the first indication information occupies 1 bit or 2 bits.

[0180] When the first indication information occupies 1 bit, this bit is a reserved bit for the MIB, or this bit is part of the PBCH payload bits. Or this bit is a PBCH payload bit.

[0181] When the first indication information occupies 2 bits, these 2 bits include the PBCH payload bits. and

[0182] The following explanation, in conjunction with Examples 2A and 2B, will illustrate the proportion of the first instruction information and the content indicated by the first instruction information.

[0183] Example 2A: When the first indication information occupies 1 bit, the first indication information is used to indicate that: the number of repeated transmissions of the PDCCH corresponding to SIB1 is K, and / or, the number of repeated transmissions of the PDSCH corresponding to SIB1 is K. Wherein, K is an integer greater than or equal to 2.

[0184] In some embodiments, when the first indication information occupies 1 bit, the first indication information may be a first preset value or a second preset value.

[0185] In some embodiments, the first preset value is 0 and the second preset value is 1; or, the first preset value is 1 and the second preset value is 0.

[0186] In some embodiments, when the first indication information is a first preset value, it indicates that repeated transmission is enabled. At this time, the first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is K, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1 is K.

[0187] In some embodiments, the value of K can be configured by a higher layer or agreed upon by a protocol.

[0188] For example, when the first indication information is a first preset value, K can be 2, 3, or 4, etc.

[0189] In some embodiments, when the first indication information is a second preset value, it indicates that repeated transmission is disabled / paused / disabled. In this case, the first indication information is used to indicate that the PDCCH corresponding to SIB1 is not to be transmitted repeatedly and / or the PDSCH corresponding to SIB1 is not to be transmitted repeatedly.

[0190] Example 2B: When the first indication information occupies 2 bits, the first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is M, and the number of repeated transmissions of the PDSCH corresponding to SIB1 is N. M is an integer greater than or equal to 2, N is an integer greater than or equal to 2, and M≥N.

[0191] For example, when the first indication information occupies 2 bits, the first indication information can be 00, 01, 10, or 11.

[0192] The following example illustrates M=N in conjunction with the first instruction information.

[0193] Example 3A, when the first indication information is 00, is used to indicate M=N=2.

[0194] Example 3B, when the first indication information is 01, is used to indicate M=N=3.

[0195] Example 3C, when the first indication information is 10, is used to indicate M=N=4.

[0196] Example 3D, when the first indication information is 11, is used to indicate M=N=5.

[0197] Examples 3A to 3D above are merely illustrative examples. In some applications, the first instruction information, as well as the values ​​of M and N, can be arbitrarily combined and / or adjusted.

[0198] The following example illustrates M>N in conjunction with the first instruction information.

[0199] Example 4A, when the first indication information is 00, is used to indicate M=3 and N=2.

[0200] Example 4B, when the first indication information is 01, is used to indicate M=4, N=3 or 2.

[0201] Example 4C, when the first indication information is 10, is used to indicate M=5, N=4, 3, or 2.

[0202] Example 4D, when the first indication information is 11, is used to indicate M=6, N=5, 4, 3, or 2.

[0203] Examples 4A to 4D above are merely illustrative examples. In some applications, the first instruction information, as well as the values ​​of M and N, can be arbitrarily combined and / or adjusted.

[0204] In some embodiments, when the first indication information is a part of 00, 01, 10, or 11 (e.g., 00, 01, 11), M equals N; when the first indication information is the remaining part of 00, 01, 10, or 11 (e.g., 10), M>N.

[0205] For example, the first indication information is 00, M=N=2; the first indication information is 01, M=N=3; the first indication information is 11, M=N=5; the first indication information is 10, M=5, N=3.

[0206] For example, the first indication information is 00, M=N=3; the first indication information is 01, M=N=4; the first indication information is 11, M=N=4; the first indication information is 10, M=4, N=2.

[0207] In some embodiments, the first indication information indicates that the number of repeated transmissions of the PDCCH corresponding to SIB1 is greater than or equal to 2, and / or that the number of repeated transmissions of the PDSCH corresponding to SIB1 is greater than or equal to 2.

[0208] The following first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is 2. Taking this as an example, and referring to Figure 2a, the repeated transmission process of PDCCH and PDSCH will be explained.

[0209] Figure 2a is an exemplary flowchart of a communication method provided in an embodiment of this disclosure. As shown in Figure 2a, the communication method includes the following steps:

[0210] In step S2101, the network device sends a Physical Broadcast Channel (PBCH) to the terminal device. The PBCH carries first indication information, which indicates that the number of retransmissions of the PDCCH corresponding to SIB1 is 2, and the number of retransmissions of the PDCCH corresponding to SIB1 is the same as the number of retransmissions of the PDSCH corresponding to SIB1. Accordingly, the terminal device receives the PBCH.

[0211] The PDCCH transmitted twice includes the first PDCCH corresponding to SIB1 and the second PDCCH corresponding to SIB1.

[0212] The PDSCH transmitted twice includes the first PDSCH corresponding to SIB1 and the second PDSCH corresponding to SIB1.

[0213] The time-frequency domain resources indicated by DCI format 0 in the first PDCCH are used to schedule the first PDSCH.

[0214] The time-frequency domain resources indicated by DCI format 0 in the second PDCCH are used to schedule the second PDSCH.

[0215] In step S2102, the network device sends a second indication message to the terminal device. The second indication message is used to indicate the first set of PDCCH listening timing parameters.

[0216] In some embodiments, the second indication information may be information carried by the four LSBs of pdcch-ConfigSIB1.

[0217] In some embodiments, the first set of PDCCH listening timing parameters includes: O0 (which can be equal to O in Table 2), Number of search space sets per slot, M0 (which can be equal to M in Table 2), and First symbol index 0 (which can be equal to First symbol index in Table 2).

[0218] In some embodiments, steps S2201 and S2202 can be combined, and the combined steps include: the network device sending a PBCH to the terminal device, wherein the PBCH carries first indication information and second indication information.

[0219] Step S2103: The terminal device determines the first listening time based on the first set of PDCCH listening time parameters.

[0220] In some embodiments, the terminal device determines the index of the first time slot where the first listening opportunity is located based on the first set of PDCCH listening opportunity parameters; and determines the first listening opportunity as the symbol indicated by First symbol index 0 in the time slot indicated by the index.

[0221] In some embodiments, the index n0 of the first time slot where the first listening opportunity occurs satisfies: Where O0 represents the time offset for listening to the first PDCCH in a radio frame, M0 represents the first number of control resource sets in the time slot associated with the first PDCCH, μ represents the subcarrier spacing parameter of the control resource set CORESET#0 corresponding to the first PDCCH, and i represents the index of the synchronization signal block SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. 0 represents floor operation, mod represents modulo operation; the first group of PDCCH listening timing parameters includes O0 and M0.

[0222] In some embodiments, the wireless frame in which the first listening opportunity occurs satisfies the following formula:

[0223] In step S2104, the network device sends the first PDCCH corresponding to SIB1 to the terminal device.

[0224] In step S2105, the terminal device detects and receives the first PDCCH corresponding to SIB1 according to the first listening time.

[0225] In step S2106, the network device sends the first PDSCH corresponding to SIB1 to the terminal device. Correspondingly, the terminal device receives the first PDSCH corresponding to SIB1 based on the first PDCCH corresponding to SIB1.

[0226] In step S2107, the network device sends the second PDCCH corresponding to SIB1 to the terminal device.

[0227] In step S2108, the terminal device determines the second listening opportunity based on the first duration and the end time of the first symbol, wherein the first symbol is the last symbol of CORESET#0 corresponding to the first PDCCH.

[0228] In some embodiments, the first duration can be a duration configured by a higher layer or a duration predefined by the protocol.

[0229] In some embodiments, the first duration is the total duration of L1 time slots, where L1 is an integer greater than or equal to 1.

[0230] For example, if L1 equals 1, then the first duration is the total duration of one time slot.

[0231] In some embodiments, the first duration is the total duration of L2 symbols, where L2 is an integer greater than or equal to 2.

[0232] For example, if L2 equals 5, then the first duration is the total duration of 5 symbols.

[0233] It should be noted that the CORESET#0 corresponding to the first PDCCH is obtained according to relevant technologies.

[0234] In step S2109, the terminal device detects and receives the second PDCCH corresponding to SIB1 according to the second listening time.

[0235] In step S2110, the network device sends the second PDSCH corresponding to SIB1 to the terminal device. Correspondingly, the terminal device receives the second PDSCH corresponding to SIB1 based on the second PDCCH corresponding to SIB1.

[0236] In some embodiments, the first indication information is used to indicate that when the number of repeated transmissions of the PDCCH corresponding to SIB1 is X, the PDCCH that is repeatedly transmitted X times includes the first PDCCH corresponding to SIB1, the second PDCCH corresponding to SIB1, ... and the Xth PDCCH corresponding to SIB1, where X is an integer greater than or equal to 2.

[0237] When the number of repeated transmissions of the PDCCH corresponding to SIB1 is the same as the number of repeated transmissions of the PDSCH corresponding to SIB1, the PDSCH with X repeated transmissions includes the first PDSCH corresponding to SIB1, the second PDSCH corresponding to SIB1, and the Xth PDSCH corresponding to SIB1.

[0238] For the xth PDCCH corresponding to SIB1 and the xth PDSCH corresponding to SIB1, where 1 < x ≤ X and x is an integer, the transmission process of the xth PDCCH corresponding to SIB1 and the xth PDSCH corresponding to SIB1 is as follows:

[0239] The network device sends the xth PDCCH corresponding to SIB1 to the terminal device;

[0240] The terminal device determines the xth listening opportunity according to the first duration and the end time of the (x - 1)th symbol;

[0241] The terminal device detects and receives the xth PDCCH corresponding to SIB1 according to the xth listening opportunity, where Y is an integer greater than or equal to 2, and the (x - 1)th symbol is the last symbol of CORESET#0 corresponding to the (x - 1)th PDCCH;

[0242] The network device sends the xth PDSCH to the terminal device;

[0243] The terminal device receives the xth PDSCH corresponding to SIB1 according to the xth PDCCH corresponding to SIB, where the time-frequency domain resources indicated by DCI format 0 in the xth PDCCH are used to schedule the xth PDSCH.

[0244] In some embodiments, the CORESET#0 corresponding to each PDCCH in the PDCCH with X repeated transmissions is the same.

[0245] It should be noted that the communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to step S2110. For example, steps S2101 to S2103 may be implemented as an independent embodiment; steps S2101 to S2103 and step S2108 may be implemented as an independent embodiment.

[0246] In some embodiments, the order of some steps in steps S2101 to step S2110 may be exchanged or executed simultaneously. The order of step S2101 and step S2102 may be exchanged or executed simultaneously. For example, the order of step S2103 and step S2104 may be exchanged. For example, the order of step S2104 and step S2104 may also be exchanged.

[0247] In some embodiments, steps S2102 to S2110 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0248] Figure 2b is an exemplary flowchart of a communication method provided in an embodiment of this disclosure. As shown in Figure 2b, the communication method includes the following steps:

[0249] In step S2201, the network device sends a PBCH to the terminal device. The PBCH carries first indication information, which indicates that the number of retransmissions of the PDCCH corresponding to SIB1 is 2, and the number of retransmissions of the PDCCH corresponding to SIB1 is the same as the number of retransmissions of the PDSCH corresponding to SIB1. Accordingly, the terminal device receives the PBCH.

[0250] The PDCCH transmitted twice includes the first PDCCH corresponding to SIB1 and the second PDCCH corresponding to SIB1.

[0251] The PDSCH transmitted twice includes the first PDSCH corresponding to SIB1 and the second PDSCH corresponding to SIB1.

[0252] The time-frequency domain resources indicated by DCI format 0 in the first PDCCH are used to schedule the first PDSCH.

[0253] The time-frequency domain resources indicated by DCI format 0 in the second PDCCH are used to schedule the second PDSCH.

[0254] In step S2202a, the network device sends a second indication information to the terminal device. The second indication information is used to indicate the first set of PDCCH listening timing parameters and the second set of PDCCH listening timing parameters.

[0255] The first set of PDCCH listening timing parameters is used to determine the first listening timing of the first PDCCH.

[0256] The second set of PDCCH listening timing parameters is used to determine the first listening timing of the second PDCCH.

[0257] In some embodiments, the second indication information may be information carried by the four LSBs of pdcch-ConfigSIB1.

[0258] In some embodiments, the second indication information is used to indicate the index of the first set of PDCCH listening timing parameters and / or the index of the second set of PDCCH listening timing parameters, wherein the index of the first set of PDCCH listening timing parameters is the same as the index of the second set of PDCCH listening timing parameters.

[0259] In some embodiments, the first set of PDCCH listening timing parameters includes: O0, Number of search space sets per slot 0, M0, and First symbol index 0.

[0260] In some embodiments, the second set of PDCCH listening timing parameters includes: O1, Number of search space sets per slot 1, M1, and First symbol index 1.

[0261] In some embodiments, the tables containing the first set of PDCCH listening timing parameters and the second set of PDCCH listening timing parameters may be the same or different.

[0262] For example, when the tables containing the first set of PDCCH listening timing parameters and the second set of PDCCH listening timing parameters are the same, the first row of the table can be as shown in Table 3 below.

[0263] Table 3

[0264] In some embodiments, the columns of Table 3 can be adjusted to obtain a new Table 3.

[0265] For example, when the tables containing the first set of PDCCH listening timing parameters and the second set of PDCCH listening timing parameters are different, the table containing the first set of PDCCH listening timing parameters can be as shown in Table 2 above, and the first row of the table containing the second set of PDCCH listening timing parameters can be as shown in Table 4 below.

[0266] Table 4

[0267] In some embodiments, steps S2201 and S2202a can be combined, and the combined steps include: the network device sending a PBCH to the terminal device, wherein the PBCH carries first indication information and second indication information.

[0268] In step S2202b, the network device sends a second indication message and a third indication message to the terminal device. The second indication message is used to indicate the first set of PDCCH listening timing parameters, and the third indication message is used to indicate the second set of PDCCH listening timing parameters.

[0269] The first set of PDCCH listening timing parameters is used to determine the first listening timing of the first PDCCH.

[0270] The second set of PDCCH listening timing parameters is used to determine the first listening timing of the second PDCCH.

[0271] In some embodiments, the second indication information is used to indicate the index of the first set of PDCCH listening timing parameters.

[0272] In some embodiments, the third indication information is used to indicate the index of the second set of PDCCH listening timing parameters.

[0273] For an explanation of the indexes of the first group of PDCCH listening timing parameters and the indexes of the second group of PDCCH listening timing parameters, as well as an explanation of the first group of PDCCH listening timing parameters and the second group of PDCCH listening timing parameters, please refer to step S2202a, which will not be repeated here.

[0274] In some embodiments, steps S2201 and S2202b can be combined, and the combined steps include: the network device sending a PBCH to the terminal device, wherein the PBCH carries first indication information, second indication information and third indication information.

[0275] Step S2203: The terminal device determines the first listening time based on the first set of PDCCH listening time parameters.

[0276] In some embodiments, the terminal device determines the index of the first time slot where the first listening opportunity is located based on the first set of PDCCH listening opportunity parameters; and determines the first listening opportunity as the symbol indicated by First symbol index 0 in the time slot where the index is located; wherein, the first set of PDCCH listening opportunity parameters includes First symbol index 0.

[0277] In some embodiments, the index n0 of the first time slot where the first listening opportunity occurs satisfies: Where O0 represents the time offset for listening to the first PDCCH in a radio frame, M0 represents the first number of control resource sets in the time slot associated with the first PDCCH, μ represents the subcarrier spacing parameter of CORESET#0 corresponding to the first PDCCH, and i represents the index of the SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. 1 represents the floor operation, and mod represents the modulo operation.

[0278] In some embodiments, the number of repeated transmissions of the PDCCH corresponding to SIB1 and the number of repeated transmissions of the PDSCH corresponding to SIB1 can be the same.

[0279] Step S2204: The network device sends the first PDCCH corresponding to SIB1 to the terminal device.

[0280] In step S2205, the terminal device detects and receives the first PDCCH corresponding to SIB1 according to the first listening time.

[0281] In step S2206, the network device sends the first PDSCH corresponding to SIB1 to the terminal device. Correspondingly, the terminal device receives the first PDSCH corresponding to SIB1 based on the first PDCCH corresponding to SIB1.

[0282] In step S2207, the network device sends the second PDCCH corresponding to SIB1 to the terminal device.

[0283] Step S2208: The terminal device determines the second listening time based on the second set of PDCCH listening time parameters.

[0284] In some embodiments, the terminal device determines the index of the first time slot where the second listening opportunity is located based on the second set of PDCCH listening opportunity parameters; and determines the second listening opportunity as the symbol indicated by First symbol index 1 in the time slot where the index is located; wherein, the second set of PDCCH listening opportunity parameters includes First symbol index 1.

[0285] In some embodiments, the index of the first time slot n1 where the second listening opportunity occurs satisfies: Where O1 represents the time offset for listening to the second PDCCH in a radio frame, M1 represents the second number of control resource sets in the time slot associated with the second PDCCH, μ represents the subcarrier spacing parameter of the control resource set CORESET#0 corresponding to the second PDCCH, and i represents the index of the SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. The first option indicates the floor function, and the second option indicates the modulo function. The second set of PDCCH listening timing parameters includes O1 and M1. The CORESET#0 corresponding to the second PDCCH is the same as the CORESET#0 corresponding to the first PDCCH.

[0286] In step S2209, the terminal device detects and receives the second PDCCH corresponding to SIB1 according to the second listening time.

[0287] In step S2210, the network device sends the second PDSCH corresponding to SIB1 to the terminal device. Correspondingly, the terminal device receives the second PDSCH corresponding to SIB1 based on the second PDCCH corresponding to SIB1.

[0288] In some embodiments, when the first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is X, the X repeated transmissions of the PDCCH include the first PDCCH corresponding to SIB1, the second PDCCH corresponding to SIB1,..., and the Xth PDCCH corresponding to SIB1, where X is an integer greater than or equal to 2.

[0289] When the number of repeated transmissions of the PDCCH corresponding to SIB1 is the same as the number of repeated transmissions of the PDSCH corresponding to SIB1, the X repeated transmissions of the PDSCH include the first PDSCH corresponding to SIB1, the second PDSCH corresponding to SIB1, and the Xth PDSCH corresponding to SIB1.

[0290] For the xth PDCCH corresponding to SIB1 and the xth PDSCH corresponding to SIB1, where 1 < x ≤ X and x is an integer, the transmission processes of the xth PDCCH corresponding to SIB1 and the xth PDSCH corresponding to SIB1 are as follows:

[0291] The network device sends the xth PDCCH corresponding to SIB1 to the terminal device;

[0292] The terminal device determines the xth listening opportunity according to the xth set of PDCCH listening opportunity parameters;

[0293] The terminal device detects and receives the xth PDCCH corresponding to SIB1 according to the xth listening opportunity, where Y is an integer greater than or equal to 2, and the (x - 1)th symbol is the last symbol of CORESET #0 corresponding to the (x - 1)th PDCCH;

[0294] The network device sends the xth PDSCH to the terminal device;

[0295] The terminal device receives the xth PDSCH corresponding to SIB1 according to the xth PDCCH corresponding to SIB1, where the time-frequency domain resources indicated by DCI format 0 in the xth PDCCH are used to schedule the xth PDSCH.

[0296] In some embodiments, the second indication information is further used to indicate the xth set of PDCCH listening opportunity parameters.

[0297] It should be noted that for the method by which the terminal device determines the xth listening opportunity according to the xth set of PDCCH listening opportunity parameters, please refer to step S2203 or step S2208.

[0298] It should be noted that the communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2210. For example, step S2201 may be implemented as an independent embodiment; for example, steps S2201 and S2202a may be implemented as independent embodiments; for example, steps S2201 and S2202b may be implemented as independent embodiments; for example, steps S2201 to S2202a and S2203 to S2210 may be implemented as independent embodiments; for example, steps S2201 to S2202a and S2203 to S2210 may be implemented as independent embodiments.

[0299] In some embodiments, some steps in steps S2201 to S2210 may be swapped in order or executed simultaneously. For example, steps S2201 and S2202 may be swapped in order or executed simultaneously; for example, steps S2203 and S2204 may be swapped in order; for example, steps S2204 and S2205 may also be swapped in order.

[0300] In some embodiments, step S2202a or step S2202b is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0301] The above example illustrates the process when the number of repeated transmissions of the PDCCH corresponding to SIB1 is the same as the number of repeated transmissions of the PDSCH corresponding to SIB1. Referring to Figure 2c, the following explanation illustrates the repeated transmission process of PDCCH and PDSCH when the number of repeated transmissions of the PDCCH corresponding to SIB1 is different from the number of repeated transmissions of the PDSCH corresponding to SIB1.

[0302] Figure 2c is an exemplary flowchart of a communication method provided in an embodiment of this disclosure. As shown in Figure 2c, the communication method includes the following steps:

[0303] In step S2301, the network device sends a PBCH to the terminal device. The PBCH carries first indication information, which indicates that the number of repeated transmissions of the PDCCH corresponding to SIB1 is 4 and the number of repeated transmissions of the PDSCH corresponding to SIB1 is 2. Accordingly, the terminal device receives the PBCH.

[0304] The four repeated PDCCH transmissions include the first PDCCH corresponding to SIB1, the second PDCCH corresponding to SIB1, the third PDCCH corresponding to SIB1, and the fourth PDCCH corresponding to SIB1.

[0305] The PDSCH transmitted twice includes the first PDSCH corresponding to SIB1 and the third PDSCH corresponding to SIB1.

[0306] The time-frequency domain resources indicated by DCI format 0 in the first PDCCH are used to schedule the first PDSCH.

[0307] The time-frequency domain resources indicated by DCI format 0 in the third PDCCH are used to schedule the third PDSCH.

[0308] In step S2302, the network device sends a second indication message to the terminal device. The second indication message is used to indicate the first set of PDCCH listening timing parameters.

[0309] In some embodiments, steps S2301 and S2302 can be combined, and the combined steps include: the network device sending a PBCH to the terminal device, wherein the PBCH carries first indication information and second indication information.

[0310] In step S2303, the terminal device determines the first listening timing based on the first set of PDCCH listening timing parameters. The first listening timing is used by the terminal device to detect and receive the first PDCCH corresponding to SIB1.

[0311] Specifically, the execution method of step S2303 is the same as that of step S2108, and the execution process of step S2403 will not be described again here.

[0312] Step S2304: The network device sends the first PDCCH corresponding to SIB1 to the terminal device.

[0313] In step S2305, the terminal device detects and receives the first PDCCH corresponding to SIB1 according to the first listening time.

[0314] In step S2306, the network device sends the first PDSCH corresponding to SIB1 to the terminal device. Correspondingly, the terminal device receives the first PDSCH corresponding to SIB1 based on the first PDCCH corresponding to SIB1.

[0315] In step S2307, the network device sends the second PDCCH corresponding to SIB1 to the terminal device.

[0316] In step S2308, the terminal device determines the second listening opportunity based on the first duration and the end time of the first symbol, wherein the first symbol is the last symbol of CORESET#0 corresponding to the first PDCCH.

[0317] Specifically, the execution method of step S2308 is the same as that of step S2108, and the execution process of step S2308 will not be described again here.

[0318] The second listening time is used by the terminal device to detect and receive the second PDCCH corresponding to SIB1.

[0319] In step S2309, the terminal device detects and receives the second PDCCH corresponding to SIB1 according to the second listening time.

[0320] In step S2310, the network device sends the third PDCCH corresponding to SIB1 to the terminal device.

[0321] Step S2311: The terminal device determines the third listening opportunity based on the end time of the first duration and the second symbol, wherein the first symbol is the last symbol of CORESET#0 corresponding to the second PDCCH.

[0322] Specifically, the execution method of step S2311 is similar to that of step S2108, and the execution process of step S2311 will not be described again here.

[0323] The third listening time is used by the terminal device to detect the reception of the third PDCCH corresponding to SIB1. The CORESET#0 corresponding to the second PDCCH is the same as the CORESET#0 corresponding to the first PDCCH.

[0324] In step S2312, the terminal device detects and receives the third PDCCH corresponding to SIB1 according to the third listening time.

[0325] In step S2313, the network device sends the third PDSCH corresponding to SIB1 to the terminal device. Correspondingly, the terminal device receives the third PDSCH corresponding to SIB1 based on the third PDCCH corresponding to SIB1.

[0326] In step S2314, the network device sends the fourth PDCCH corresponding to SIB1 to the terminal device.

[0327] In step S2315, the terminal device determines the fourth listening opportunity based on the first duration and the end time of the third symbol, wherein the first symbol is the last symbol of CORESET#0 corresponding to the third PDCCH.

[0328] The fourth listening time is used by the terminal device to detect and receive the fourth PDCCH corresponding to SIB1.

[0329] The CORESET#0 corresponding to the third PDCCH is the same as the CORESET#0 corresponding to the second PDCCH.

[0330] Specifically, the execution method of step S2315 is similar to that of step S2108, and the execution process of step S2315 will not be described again here.

[0331] In step S2316, the terminal device detects and receives the fourth PDCCH corresponding to SIB1 according to the fourth listening time.

[0332] It should be noted that Figure 2c is an example of the network device sending the first PDSCH corresponding to SIB1 and the third PDSCH corresponding to SIB1 to the terminal device.

[0333] In some embodiments, the network device sends a first PDSCH corresponding to SIB1 and a second PDSCH corresponding to SIB1 to the terminal device. The terminal device receives the first PDSCH corresponding to SIB1 and the second PDSCH corresponding to SIB1.

[0334] In some embodiments, the network device sends the third PDSCH corresponding to SIB1 and the fourth PDSCH corresponding to SIB1 to the terminal device. The terminal device receives the third PDSCH corresponding to SIB1 and the fourth PDSCH corresponding to SIB1.

[0335] It should be noted that the communication method involved in the embodiments of this disclosure may include at least one of steps S2301 to S2316. For example, step S2301 may be implemented as a standalone embodiment; for example, steps S2301 and S2302 may be implemented as standalone embodiments.

[0336] In some embodiments, some steps in steps S2301 to S2316 may be swapped in order or performed simultaneously. For example, steps S2301 and S2302 may be swapped in order or performed simultaneously; steps S2303 and S2304 may be swapped in order; and steps S2304 and S2305 may also be swapped in order.

[0337] In some embodiments, the first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is M, and the number of repeated receptions of the PDSCH corresponding to SIB1 is N, wherein the number of repeated transmissions of the PDCCH corresponding to SIB1 is equal to the number of repeated transmissions of the PDSCH corresponding to SIB1. M is greater than or equal to N, and N is an integer greater than or equal to 2. Based on this embodiment, the repeated transmission process of PDCCH and PDSCH will be described below with reference to FIG2d.

[0338] Figure 2d is an exemplary flowchart of a communication method provided in an embodiment of this disclosure. As shown in Figure 2d, the communication method includes the following steps:

[0339] In step S2401, the network device sends a PBCH to the terminal device. The PBCH carries first indication information, which indicates that the number of repeated transmissions of the PDCCH corresponding to SIB1 is 4 and the number of repeated receptions of the PDSCH corresponding to SIB1 is 2. Accordingly, the terminal device receives the PBCH.

[0340] The number of repeated transmissions of the PDCCH corresponding to SIB1 is the same as the number of repeated transmissions of the PDSCH corresponding to SIB1.

[0341] The four repeated PDCCH transmissions include the first PDCCH corresponding to SIB1, the second PDCCH corresponding to SIB1, the third PDCCH corresponding to SIB1, and the fourth PDCCH corresponding to SIB1.

[0342] The four repeated PDSCH transmissions include the first PDSCH corresponding to SIB1, the second PDSCH corresponding to SIB1, the third PDSCH corresponding to SIB1, and the fourth PDSCH corresponding to SIB4.

[0343] The time-frequency domain resources indicated by DCI format 0 in the first PDCCH are used to schedule the first PDSCH.

[0344] The time-frequency domain resources indicated by DCI format 0 in the second PDCCH are used to schedule the second PDSCH.

[0345] The time-frequency domain resources indicated by DCI format 0 in the third PDCCH are used to schedule the third PDSCH.

[0346] The time-frequency domain resources indicated by DCI format 0 in the fourth PDCCH are used to schedule the fourth PDSCH.

[0347] In step S2402, the network device sends a second indication message to the terminal device. The second indication message is used to indicate the first set of PDCCH listening timing parameters.

[0348] In some embodiments, steps S2401 and S2402 can be combined, and the combined steps include: the network device sending a PBCH to the terminal device, wherein the PBCH carries first indication information and second indication information.

[0349] In step S2403, the terminal device determines the first listening time based on the first set of PDCCH listening time parameters.

[0350] Specifically, the execution method of step S2403 is the same as that of step S2103, and the execution process of step S2403 will not be described again here.

[0351] In step S2404, the network device sends the first PDCCH corresponding to SIB1 to the terminal device.

[0352] In step S2405, the terminal device detects and receives the first PDCCH corresponding to SIB1 according to the first listening time.

[0353] In step S2406, the network device sends the first PDSCH corresponding to SIB1 to the terminal device. Correspondingly, the terminal device receives the first PDSCH corresponding to SIB1 based on the first PDCCH corresponding to SIB1.

[0354] In step S2407, the network device sends the second PDCCH corresponding to SIB1 to the terminal device.

[0355] In step S2408, the terminal device determines the second listening opportunity based on the first duration and the end time of the first symbol, wherein the first symbol is the last symbol of CORESET#0 corresponding to the first PDCCH.

[0356] Specifically, the execution method of step S2408 is the same as that of step S2108, and the execution process of step S2408 will not be described again here.

[0357] In step S2409, the terminal device detects and receives the second PDCCH corresponding to SIB1 according to the second listening time.

[0358] In step S2410, the network device sends the second PDSCH corresponding to SIB1 to the terminal device. Correspondingly, the terminal device cancels the reception of the second PDSCH corresponding to SIB1 based on the second PDCCH corresponding to SIB1.

[0359] In this embodiment of the disclosure, "cancel" can be understood as the terminal device ignoring the time-frequency domain resources indicated by DCI format 0 in the PDCCH and not receiving the decoded PDSCH.

[0360] For example, if the terminal device cancels receiving the second PDSCH corresponding to SIB1 based on the second PDCCH corresponding to SIB1, it can be understood that the terminal device ignores the time-frequency domain resources indicated by DCI format 0 in the second PDCCH.

[0361] In step S2411, the network device sends the third PDCCH corresponding to SIB1 to the terminal device.

[0362] In step S2412, the terminal device determines the third listening opportunity based on the end time of the first duration and the second symbol, wherein the first symbol is the last symbol of CORESET#0 corresponding to the second PDCCH.

[0363] Specifically, the execution method of step S2412 is similar to that of step S2108, and the execution process of step S2412 will not be described again here.

[0364] In step S2413, the terminal device detects and receives the third PDCCH corresponding to SIB1 according to the third listening time.

[0365] In step S2414, the network device sends the third PDSCH corresponding to SIB1 to the terminal device. Correspondingly, the terminal device receives the third PDSCH corresponding to SIB1 based on the third PDCCH corresponding to SIB1.

[0366] In step S2415, the network device sends the fourth PDCCH corresponding to SIB1 to the terminal device.

[0367] In step S2416, the terminal device determines the fourth listening opportunity based on the first duration and the end time of the third symbol, wherein the first symbol is the last symbol of CORESET#0 corresponding to the third PDCCH.

[0368] Specifically, the execution method of step S2416 is similar to that of step S2108, and the execution process of step S2416 will not be described again here.

[0369] In step S2417, the terminal device detects and receives the fourth PDCCH corresponding to SIB1 according to the fourth listening time.

[0370] In step S2418, the network device sends the fourth PDSCH corresponding to SIB1 to the terminal device. Correspondingly, the terminal device cancels the reception of the fourth PDSCH corresponding to SIB1 based on the fourth PDCCH corresponding to SIB1.

[0371] For example, if the terminal device cancels receiving the fourth PDSCH corresponding to SIB1 based on the fourth PDCCH corresponding to SIB1, it can be understood that the terminal device ignores the time-frequency domain resources indicated by DCI format 0 in the fourth PDCCH.

[0372] It should be noted that Figure 2d is illustrated using the example of the terminal device receiving the first PDSCH corresponding to SIB1 and the third PDSCH corresponding to SIB1.

[0373] In some embodiments, the terminal device may also receive the first PDSCH corresponding to SIB1 and the second PDSCH corresponding to SIB1.

[0374] In some embodiments, the terminal device may also receive the third PDSCH corresponding to SIB1 and the fourth PDSCH corresponding to SIB1.

[0375] It should be noted that the communication method involved in the embodiments of this disclosure may include at least one of steps S2401 to S2418. For example, step S2401 may be implemented as a standalone embodiment; for example, steps S2401 and S2402 may be implemented as standalone embodiments.

[0376] In some embodiments, some steps in steps S2401 to S2410 may be swapped in order or performed simultaneously. For example, steps S2401 and S2402 may be swapped in order or performed simultaneously; for example, steps S2403 and S2404 may be swapped in order; for example, steps S2404 and S2405 may also be swapped in order.

[0377] It should be noted that when the terminal device determines the x-th listening opportunity of the x-th PDCCH based on the first duration and the end time of the (x-1)-th symbol, if there is overlap between the listening resources of the x-th PDCCH and the listening resources of other SSBs, then the (x+1)-th listening opportunity of the (x+1)-th PDCCH will continue to be determined based on the first duration and the end time of the x-th symbol. Other SSBs are SSBs that are different from the SSBs associated with the SIB.

[0378] In this embodiment of the disclosure, the terminal device detects and receives the xth PDCCH according to the xth listening time, including: the terminal device detects and receives the xth PDCCH in the CORESET#0 corresponding to the xth PDCCH at the xth listening time.

[0379] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0380] It should be noted that the above embodiments are illustrated using the example of repeated transmissions including the first / first transmission.

[0381] In some embodiments, the number of repeated transmissions may exclude the first / first transmission and include other transmissions besides the first / first transmission.

[0382] When the number of repeated transmissions includes the first / first transmission, the number of repeated transmissions in the above examples can be reduced by 1.

[0383] Based on the above embodiments, the following example, taking the case where the number of repeated transmissions of the PDCCH corresponding to SIB1 and the number of repeated transmissions of the PDSCH corresponding to SIB1 are the same, illustrates the repeat patterns of PDCCH and PDSCH under various repeat modes of SSB and CORESET#0.

[0384] Figure 3a is a repeating pattern of PDCCH and PDSCH provided in an embodiment of this disclosure. As shown in Figure 3a, in multiplexing mode 1 of SSB and CORESET#0, the number of repeated transmissions of PDCCH corresponding to SIB1 and the number of repeated transmissions of PDSCH corresponding to SIB1 are the same, both being 2.

[0385] Figure 3b is a repeating pattern of PDCCH and PDSCH provided in an embodiment of this disclosure. As shown in Figure 3b, in multiplexing mode 2 of SSB and CORESET#0, the number of repeated transmissions of PDCCH corresponding to SIB1 and the number of repeated transmissions of PDSCH corresponding to SIB1 are the same, both being 2.

[0386] Figure 3c is a repeating pattern of PDCCH and PDSCH provided in an embodiment of this disclosure. As shown in Figure 3c, in multiplexing mode 3 of SSB and CORESET#0, the number of repeated transmissions of PDCCH corresponding to SIB1 and the number of repeated transmissions of PDSCH corresponding to SIB1 are the same, both being 2.

[0387] This disclosure also provides embodiments of an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal device in any of the above methods. Furthermore, another apparatus is provided that includes units or modules for implementing the steps performed by the network device in any of the above methods.

[0388] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through a configuration file, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0389] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0390] Figure 4a is an exemplary structural schematic diagram of a communication device provided according to an embodiment of the present disclosure. The communication device can be software and / or hardware disposed in a terminal device. As shown in Figure 4a, the communication device 4100 may include:

[0391] Transceiver module 4101 is used to receive first indication information from network device;

[0392] The first indication information is used to indicate the number of times the physical downlink control channel (PDCCH) corresponding to system information block SIB1 is repeatedly transmitted, and / or the number of times the physical downlink shared channel (PDSCH) corresponding to SIB1 is repeatedly transmitted.

[0393] In some embodiments, the transceiver module 4101 is specifically configured to receive the physical broadcast channel PBCH from the network device, wherein the PBCH carries first indication information.

[0394] In some embodiments, the main information block (MIB) of the PBCH carries first indication information.

[0395] In some embodiments, the reserved bits of the MIB carry first indication information.

[0396] In some embodiments, the load information of the PBCH carries first indication information, and the load information is load information generated by the physical layer of the network device.

[0397] In some embodiments, the reserved bits of the payload information carry first indication information.

[0398] In some embodiments, the first indication information occupies 1 bit;

[0399] The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is K, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1 is K;

[0400] Where K is an integer greater than or equal to 2.

[0401] In some embodiments, the first indication information occupies 2 bits;

[0402] The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is M, and the number of repeated transmissions of the PDSCH corresponding to SIB1 is N.

[0403] Where M is an integer greater than or equal to 2, N is an integer greater than or equal to 2, and M is greater than or equal to N.

[0404] In some embodiments, the first indication information indicates that the number of repeated transmissions of the PDCCH corresponding to SIB1 is greater than or equal to 2; the transceiver module 4101 is further configured to receive at least two repeatedly transmitted PDCCHs from the network device, wherein the SIB1 corresponding to the at least two repeatedly transmitted PDCCHs is the same.

[0405] In some embodiments, at least two repeatedly transmitted PDCCHs include a first PDCCH and a second PDCCH;

[0406] Receive at least two repeated PDCCH transmissions, including:

[0407] Based on the first listening timing, detect and receive the first PDCCH;

[0408] Based on the second listening timing, detect the reception of the second PDCCH.

[0409] In some embodiments, the transceiver module 4101 is further configured to receive second indication information from the network device;

[0410] The second indication information is used to indicate the first set of PDCCH listening timing parameters, which are used by the terminal device to determine the first listening timing.

[0411] In some embodiments, the index n0 of the first time slot where the first listening opportunity occurs satisfies: Where O0 represents the time offset for listening to the first PDCCH in a radio frame, M0 represents the first number of control resource sets in the time slot associated with the first PDCCH, μ represents the subcarrier spacing parameter of the control resource set CORESET#0 corresponding to the first PDCCH, and i represents the index of the synchronization signal block SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. 0 represents floor operation, mod represents modulo operation; the first group of PDCCH listening timing parameters includes O0 and M0.

[0412] In some embodiments, the time interval between the second listening time and the end time of the first symbol is a first duration; the first symbol is the last symbol of the control resource set CORESET#0 corresponding to the first PDCCH.

[0413] In some embodiments, the first duration is the total duration of L1 time slots, where L1 is an integer greater than or equal to 1; or, the first duration is the total duration of L2 symbols, where L2 is an integer greater than or equal to 2.

[0414] In some embodiments, the second indication information is further used to indicate a second set of PDCCH listening timing parameters, which are used by the terminal device to determine the second listening timing.

[0415] In some embodiments, the transceiver module 4101 is further configured to receive third indication information from the network device, the third indication information being used to indicate a second set of PDCCH listening timing parameters, the second set of PDCCH listening timing parameters being used by the terminal device to determine a second listening timing.

[0416] In some embodiments, the index n1 of the first time slot where the second listening opportunity occurs satisfies: Where O1 represents the time offset for listening to the second PDCCH in a radio frame, M1 represents the second number of control resource sets in the time slot associated with the second PDCCH, μ represents the subcarrier spacing parameter of CORESET#0 corresponding to the second PDCCH, and i represents the index of the SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. The first option indicates the floor function, and the second option indicates the modulo function. The second set of PDCCH listening timing parameters includes O1 and M1. The CORESET#0 corresponding to the second PDCCH is the same as the CORESET#0 corresponding to the first PDCCH.

[0417] Figure 4b is an exemplary structural schematic diagram of a communication device provided according to an embodiment of the present disclosure. The communication device can be software and / or hardware disposed in a network device. As shown in Figure 4b, the communication device 4200 may include:

[0418] The transceiver module 4201 is used to send first indication information to the terminal device;

[0419] The first indication information is used to indicate the number of times the physical downlink control channel (PDCCH) corresponding to system information block SIB1 is repeatedly transmitted, and / or the number of times the physical downlink shared channel (PDSCH) corresponding to SIB1 is repeatedly transmitted.

[0420] In some embodiments, the transceiver module 4201 is specifically used to send a physical broadcast channel PBCH to a terminal device, wherein the PBCH carries first indication information.

[0421] In some embodiments, the main information block (MIB) of the PBCH carries first indication information.

[0422] In some embodiments, the reserved bits of the MIB carry first indication information.

[0423] In some embodiments, the load information of the PBCH carries first indication information, and the load information is load information generated by the physical layer of the network device.

[0424] In some embodiments, the reserved bits of the payload information carry first indication information.

[0425] In some embodiments, the first indication information occupies 1 bit;

[0426] The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is K, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1 is K;

[0427] Where K is an integer greater than or equal to 2.

[0428] In some embodiments, the first indication information occupies 2 bits;

[0429] The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is M, and the number of repeated transmissions of the PDSCH corresponding to SIB1 is N.

[0430] Where M is an integer greater than or equal to 2, and N is an integer greater than or equal to 2, where M is greater than or equal to N.

[0431] In some embodiments, the first indication information indicates that the number of repeated transmissions of the PDCCH corresponding to SIB1 is greater than or equal to 2; the transceiver module 4201 is further configured to send at least two repeatedly transmitted PDCCHs to the terminal device, wherein the SIB1 corresponding to the at least two repeatedly transmitted PDCCHs is the same.

[0432] In some embodiments, at least two repeatedly transmitted PDCCHs include a first PDCCH and a second PDCCH; the transceiver module 4201 is specifically used for:

[0433] At the first listening opportunity, send the first PDCCH;

[0434] At the second listening time, send the second PDCCH.

[0435] In some embodiments, the transceiver module 4201 is further configured to send a second indication information to the terminal device. The second indication information is used to indicate a first set of PDCCH listening timing parameters, and the first set of PDCCH listening timing parameters is used by the terminal device to determine a first listening timing.

[0436] In some embodiments, the index n0 of the first time slot where the first listening opportunity occurs satisfies: Where O0 represents the time offset for listening to the first PDCCH in a radio frame, M0 represents the first number of control resource sets in the time slot associated with the first PDCCH, μ represents the subcarrier spacing parameter of the control resource set CORESET#0 corresponding to the first PDCCH, and i represents the index of the synchronization signal block SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. 0 represents floor operation, mod represents modulo operation; the first group of PDCCH listening timing parameters includes O0 and M0.

[0437] In some embodiments, the time interval between the second listening opportunity and the end time of the first symbol is a first duration;

[0438] The first symbol is the last symbol of the control resource set CORESET#0 corresponding to the first PDCCH.

[0439] In some embodiments, the first duration is the total duration of L1 time slots, where L1 is an integer greater than or equal to 1; or,

[0440] The first duration is the total duration of L2 symbols, where L2 is an integer greater than or equal to 2.

[0441] In some embodiments, the second indication information is further used to indicate a second set of PDCCH listening timing parameters, which are used by the terminal device to determine the second listening timing.

[0442] In some embodiments, the transceiver module 4201 is further configured to send a third indication information to the terminal device, the third indication information being used to indicate a second set of PDCCH listening timing parameters, the second set of PDCCH listening timing parameters being used by the terminal device to determine a second listening timing.

[0443] In some embodiments, the index n1 of the first time slot where the second listening opportunity occurs satisfies: Where O1 represents the time offset for listening to the second PDCCH in a radio frame, M1 represents the second number of control resource sets in the time slot associated with the second PDCCH, μ represents the subcarrier spacing parameter of CORESET#0 corresponding to the second PDCCH, and i represents the index of the SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. The first option indicates the floor function, and the second option indicates the modulo function. The second set of PDCCH listening timing parameters includes O1 and M1. The CORESET#0 corresponding to the second PDCCH is the same as the CORESET#0 corresponding to the first PDCCH.

[0444] Figure 5a is an exemplary structural diagram of a communication device provided according to an embodiment of the present disclosure. The communication device can be any of a terminal device or a network device, or it can be a chip, chip system, or processor, etc., that supports any of the terminal devices or network devices in implementing any of the above methods. It can be used to implement the methods described in the above method embodiments, and for details, please refer to the description in the above method embodiments.

[0445] As shown in Figure 5a, the communication device 5100 includes one or more processors 5101. The processor 5101 can be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The communication device 5100 is used to execute any of the above methods.

[0446] In some embodiments, the processor 5101 is used to execute processing steps. For example, steps S2103, S2105, S2108, and S2109; steps S2203, S2205, S2208, and S2209; steps S2303, S2305, S2308, S2309, S2311, S2312, S2315, and S2316; and steps S2403, S2405, S2408, S2409, S2412, S2416, and S2417.

[0447] In some embodiments, the communication device 5100 further includes one or more memories 5102 for storing instructions. Optionally, all or part of the memories 5102 may also be located outside the communication device 5100.

[0448] In some embodiments, the communication device 5100 further includes one or more transceivers 5103. When the communication device 5100 includes one or more transceivers 5103, the transceivers 5103 perform communication steps such as sending and / or receiving in the above method. For example, steps S2101, S2102, S2104, S2106, S2107, and S2110. For example, steps S2201, S2202a, S2202b, S2204, S2206, S2207, and S2110. For example, steps S2301, S2302, S2304, S2306, S2307, S2310, S2313, and S2314. For example, steps 2401, S2402, S2404, S2406, S2407, S2410, S2411, S2414, S2415, and S2418.

[0449] In some embodiments, transceiver 5103 may include a receiver and / or a transmitter, which may be separate or integrated together. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0450] In some embodiments, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5102, and the interface circuit 5104 can be used to receive signals from the memory 5102 or other devices, and can be used to send signals to the memory 5102 or other devices. For example, the interface circuit 5104 can read instructions stored in the memory 5102 and send the instructions to the processor 5101.

[0451] The communication device 5100 described in the above embodiments can be any of the terminal devices or network devices, but the scope of the communication device 5100 described in this disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5a. The communication device can be an independent device or a part of a larger device. For example, the communication device can be at least one of the following: (1) an independent integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, network device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0452] Figure 5b is an exemplary structural diagram of a chip provided according to an embodiment of the present disclosure. For cases where the communication device can be a chip or a chip system, please refer to the structural diagram of chip 5200 shown in Figure 5b, but it is not limited thereto.

[0453] Chip 5200 includes one or more processors 5201, which are used to perform the above communication methods.

[0454] In some embodiments, the processor 5201 is used to execute processing steps. For example, steps S2103, S2105, S2108, and S2109. For example, steps S2203, S2205, S2208, and S2209. For example, steps S2303, S2305, S2308, S2309, S2311, S2312, S2315, and S2316. For example, steps S2403, S2405, S2408, S2409, S2412, S2416, and S2417.

[0455] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, the interface circuit 5202 is connected to memory 5203, and the interface circuit 5202 can be used to receive signals from memory 5203 or other devices, and the interface circuit 5202 can be used to send signals to memory 5203 or other devices. For example, the interface circuit 5202 can read instructions stored in memory 5203 and send the instructions to processor 5201.

[0456] In some embodiments, the interface circuit 5202 performs communication steps such as sending and / or receiving in the above method. Examples include steps S2101, S2102, S2104, S2106, S2107, and S2110; steps S2201, S2202a, S2202b, S2204, S2206, S2207, and S2110; steps S2301, S2302, S2304, S2306, S2307, S2310, S2313, and S2314; and steps S2401, S2402, S2404, S2406, S2407, S2410, S2411, S2414, S2415, and S2418.

[0457] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0458] In some embodiments, chip 5200 further includes one or more memories 5203 for storing instructions. Optionally, all or part of the memories 5203 may be located outside of chip 5200.

[0459] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0460] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 5100, cause the communication device 5100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0461] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by the communication device 5100, cause the communication device 5100 to perform any of the above methods. Optionally, the above program product is a computer program product.

[0462] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0463] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0464] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0465] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A communication method characterized by comprising: The method is executed by a terminal device, and the method includes: Receive the first instruction information from the network device; Wherein, the first indication information is used to indicate: the number of repeated transmissions of the physical downlink control channel (PDCCH) corresponding to system information block (SIB1), and / or the number of repeated transmissions of the physical downlink shared channel (PDSCH) corresponding to SIB1.

2. The method of claim 1, wherein, Receiving the first indication information from the network device includes: The network device receives a Physical Broadcast Channel (PBCH), which carries the first indication information.

3. The method of claim 2, wherein, The main information block (MIB) of the PBCH carries the first indication information.

4. The method of claim 3, wherein, The reserved bits in the MIB carry the first indication information.

5. The method of claim 2, wherein, The load information of the PBCH carries the first indication information, and the load information is the load information generated by the physical layer of the network device.

6. The method of claim 5, wherein, The reserved bits of the load information carry the first indication information.

7. The method according to any one of claims 1 to 6, characterized in that, The first indication information occupies 1 bit; The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is K, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1 is K; Where K is an integer greater than or equal to 2.

8. The method according to any one of claims 1 to 6, characterized in that, The first indication information occupies 2 bits; The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is M, and the number of repeated transmissions of the PDSCH corresponding to SIB1 is N; Wherein, M is an integer greater than or equal to 2, N is an integer greater than or equal to 2, and M is greater than or equal to N.

9. The method according to any one of claims 1 to 8, characterized in that, The first indication information indicates that the number of repeated transmissions of the PDCCH corresponding to SIB1 is greater than or equal to 2; the method further includes: The network device receives at least two repeatedly transmitted PDCCHs, wherein the at least two repeatedly transmitted PDCCHs correspond to the same SIB1.

10. The method of claim 9, wherein, The at least two repeatedly transmitted PDCCHs include a first PDCCH and a second PDCCH; Receiving at least two retransmitted PDCCHs includes: Based on the first listening timing, the first PDCCH is detected and received; Based on the second listening timing, the second PDCCH is detected and received.

11. The method of claim 10, wherein, The method further includes: Receive second instruction information from the network device; The second indication information is used to indicate the first set of PDCCH listening timing parameters corresponding to the first PDCCH, and the first set of PDCCH listening timing parameters is used by the terminal device to determine the first listening timing.

12. The method according to claim 11, characterized in that, An index n0 of a first time slot where the first listening occasion is located satisfies: Wherein, O0 represents the time offset for listening to the first PDCCH in a radio frame, M0 represents the first number of control resource sets in the time slot associated with the first PDCCH, μ represents the subcarrier spacing parameter of the control resource set CORESET#0 corresponding to the first PDCCH, and i represents the index of the synchronization signal block SSB associated with SIB1. represents the total number of slots included in a radio frame, The floor function represents rounding down, and mod represents modulo operation. The first set of PDCCH monitoring timing parameters includes O0 and M0.

13. The method according to any one of claims 10 to 12, characterized in that, The time interval between the second listening opportunity and the end time of the first symbol is the first duration; The first symbol is the last symbol of the control resource set CORESET#0 corresponding to the first PDCCH.

14. The method of claim 13, wherein, The first duration is the total duration of L1 time slots, where L1 is an integer greater than or equal to 1; or, The first duration is the total duration of L2 symbols, where L2 is an integer greater than or equal to 2.

15. The method according to claim 11 or 12, characterized in that, The second indication information is also used to indicate a second set of PDCCH listening timing parameters, which are used by the terminal device to determine the second listening timing.

16. The method according to any one of claims 10 to 12, characterized in that, The method further includes: Receive third-party instruction information from network devices; The third indication information is used to indicate the second set of PDCCH listening timing parameters corresponding to the second PDCCH, and the second set of PDCCH listening timing parameters is used by the terminal device to determine the second listening timing.

17. The method according to claim 15 or 16, characterized in that, An index n1 of a first time slot in which the second listening occasion is located satisfies: Wherein, O1 represents the time offset for listening to the second PDCCH in a radio frame, M1 represents the second number of control resource sets in the time slot associated with the second PDCCH, μ represents the subcarrier spacing parameter of CORESET#0 corresponding to the second PDCCH, and i represents the index of the SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. The floor function represents rounding down, and mod represents modulo operation. The second set of PDCCH listening timing parameters includes O1 and M1, and the CORESET#0 corresponding to the second PDCCH is the same as the CORESET#0 corresponding to the first PDCCH.

18. A communication method, characterized in that, The method is performed by a network device, and the method includes: Send the first instruction information to the terminal device; The first indication information is used to indicate the number of repeated transmissions of the PDCCH corresponding to SIB1, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1.

19. The method according to claim 18, characterized in that, Sending the first instruction information to the terminal device includes: The physical broadcast channel PBCH is sent to the terminal device, and the PBCH carries the first indication information.

20. The method of claim 19, wherein, The main information block (MIB) of the PBCH carries the first indication information.

21. The method according to claim 20, characterized in that, The reserved bits in the MIB carry the first indication information.

22. The method according to claim 19, characterized in that, The load information of the PBCH carries the first indication information, and the load information is the load information generated by the physical layer of the network device.

23. The method according to claim 22, characterized in that, The reserved bits of the load information carry the first indication information.

24. The method according to any one of claims 18 to 23, characterized in that, The first indication information occupies 1 bit; The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is K, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1 is K; Where K is an integer greater than or equal to 2.

25. The method according to any one of claims 18 to 23, characterized in that, The first indication information occupies 2 bits; The first indication information is used to indicate that the number of repeated transmissions of the PDCCH corresponding to SIB1 is M, and the number of repeated transmissions of the PDSCH corresponding to SIB1 is N; Wherein, M is an integer greater than or equal to 2, N is an integer greater than or equal to 2, and M is greater than or equal to N.

26. The method according to any one of claims 18 to 25, characterized in that, The first indication information indicates that the number of repeated transmissions of the PDCCH corresponding to SIB1 is greater than or equal to 2; the method further includes: Send at least two repeated PDCCHs to the terminal device, wherein the at least two repeated PDCCHs correspond to the same SIB1.

27. The method according to claim 26, characterized in that, The at least two repeatedly transmitted PDCCHs include a first PDCCH and a second PDCCH; The transmission of at least two repeated PDCCHs includes: At the first listening opportunity, the first PDCCH is sent; At the second listening time, the second PDCCH is sent.

28. The method according to claim 27, characterized in that, The method further includes: Send a second instruction message to the terminal device; The second indication information is used to indicate the first set of PDCCH listening timing parameters corresponding to the first PDCCH, and the first set of PDCCH listening timing parameters is used by the terminal device to determine the first listening timing.

29. The method according to claim 28, characterized in that, The index n0 of the first time slot where the first listening opportunity occurs satisfies: Wherein, O0 represents the time offset for listening to the first PDCCH in a radio frame, M0 represents the first number of control resource sets in the time slot associated with the first PDCCH, μ represents the subcarrier spacing parameter of CORESET#0 corresponding to the first PDCCH, and i represents the index of the SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. The floor function represents rounding down, and mod represents modulo operation. The first set of PDCCH monitoring timing parameters includes O0 and M0.

30. The method according to any one of claims 27 to 29, characterized in that, The time interval between the second listening opportunity and the end time of the first symbol is the first duration; The first symbol is the last symbol of the control resource set CORESET#0 corresponding to the first PDCCH.

31. The method according to claim 30, characterized in that, The first duration is the total duration of L1 time slots, where L1 is an integer greater than or equal to 1; or, The first duration is the total duration of L2 symbols, where L2 is an integer greater than or equal to 2.

32. The method according to claim 28 or 29, characterized in that, The second indication information is also used to indicate a second set of PDCCH listening timing parameters, which are used by the terminal device to determine the second listening timing.

33. The method according to any one of claims 27 to 29, characterized in that, The method further includes: Send a third instruction message to the terminal device; The third indication information is used to indicate the second set of PDCCH listening timing parameters corresponding to the second PDCCH, and the second set of PDCCH listening timing parameters is used by the terminal device to determine the second listening timing.

34. The method according to claim 32 or 33, characterized in that, The index n1 of the first time slot where the second listening opportunity occurs satisfies: Wherein, O1 represents the time offset for listening to the second PDCCH in a radio frame, M1 represents the second number of control resource sets in the time slot associated with the second PDCCH, μ represents the subcarrier spacing parameter of CORESET#0 corresponding to the second PDCCH, CORESET#0 is used to indicate the size of the time-frequency domain resources where the at least two repeatedly transmitted PDCCHs are located, and i represents the index of the SSB associated with SIB1. This indicates the total number of time slots included in a radio frame. The floor function represents rounding down, and mod represents modulo operation. The second set of PDCCH listening timing parameters includes O1 and M1, and the CORESET#0 corresponding to the second PDCCH is the same as the CORESET#0 corresponding to the first PDCCH.

35. A communication device, characterized in that, include: The transceiver module is used to receive first indication information from the network device; The first indication information is used to indicate the number of repeated transmissions of the PDCCH corresponding to SIB1, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1.

36. A communication device, characterized in that, include: The transceiver module is used to send the first instruction information to the terminal device; The first indication information is used to indicate the number of repeated transmissions of the PDCCH corresponding to SIB1, and / or the number of repeated transmissions of the PDSCH corresponding to SIB1.

37. A terminal device, characterized in that, include: One or more processors; The terminal device is used to execute the communication method according to any one of claims 1 to 17.

38. A network device, characterized in that, include: One or more processors; The network device is used to perform the communication method according to any one of claims 18 to 34.

39. A communication system, characterized in that, include: Terminal equipment and network equipment; The terminal device is configured to implement the communication method according to any one of claims 1 to 17; The network device is configured to implement the communication method according to any one of claims 18 to 34.

40. A storage medium storing instructions, characterized in that, When the instructions are executed on the communication device, the communication device performs the communication method as described in any one of claims 1 to 17, or 18 to 34.

41. A program product comprising a program and / or instructions, characterized in that, When the program and / or instructions are executed by the communication device, they implement the communication method as described in any one of claims 1 to 17, or 18 to 34.

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