Physical downlink control channel coverage enhancement method and apparatus, and storage medium

Abstract

The present disclosure relates to a physical downlink control channel (PDCCH) coverage enhancement method and apparatus, and a storage medium. By determining a repeated transmission mode of SIB1 PDCCHs, a terminal can receive, within at least one monitoring occasion, the SIB1 PDCCHs repeatedly transmitted by a network side device, so as to jointly decode the repeatedly transmitted SIB1 PDCCHs to obtain scheduling information of a physical downlink shared channel (PDSCH), and acquire SIB1 information on the basis of the scheduling information of the PDSCH, wherein the repeatedly transmitted SIB1 PDCCHs are combined to obtain a complete SIB1 PDCCH. In this way, the problem of inaccurate SIB1 PDCCH packet loss caused by reduction of beam transmission power is solved, such that the terminal can obtain more accurate SIB1 information, thereby enhancing the SIB1 PDCCHs, improving the coverage performance of the SIB1 PDCCHs, and increasing the network access success rate of the terminal.

Description

Methods, apparatus and storage media for enhancing coverage of physical downlink control channels

[0001] Cross-reference to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 202410938163.8, filed on July 12, 2024, entitled “Method, Apparatus and Storage Medium for Enhancing Coverage of Physical Downlink Control Channel”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of communication technology, specifically to a method, apparatus, and storage medium for enhancing coverage of a physical downlink control channel. Background Technology

[0004] The Physical Downlink Control Channel (PDCCH) of System Information Blocks 1 (SIB1) serves as the control channel before initial access. The Physical Downlink Shared Channel (PDSCH) scheduled by the PDCCH carries SIB1, and the performance of the PDCCH is crucial to whether the terminal can successfully access the network.

[0005] However, in the context of non-terrestrial network (NTN) scenarios, multi-beam communication may become the main mode of future satellite communication. Allocating the already scarce on-board power resources to multiple beams will inevitably lead to a shortage of transmission power for each beam, resulting in poor PDCCH performance and reduced success rate of terminal network access.

[0006] Therefore, there is an urgent need to provide a coverage enhancement solution for SIB1 PDCCH in order to improve the coverage performance of SIB1 PDCCH and increase the success rate of terminal network access. Summary of the Invention

[0007] At least one embodiment of this disclosure provides a method, apparatus, and storage medium for enhancing coverage of a physical downlink control channel.

[0008] In a first aspect, embodiments of this disclosure propose a method for enhancing the coverage of a physical downlink control channel, applied to a terminal, comprising:

[0009] Determine the repetition mode of the physical downlink control channel SIB1 PDCCH of system information block 1;

[0010] Based on the retransmission method, the SIB1 PDCCH is received repeatedly within at least one listening opportunity.

[0011] The repeatedly transmitted SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information is obtained based on the PDSCH scheduling information.

[0012] In some embodiments, determining the retransmission mode of the Physical Downlink Control Channel (SIB1) PDCCH of System Information Block 1 includes:

[0013] The repetitive transmission method of SIB1 PDCCH is pre-agreed with the network-side equipment;

[0014] Alternatively, based on the physical layer backup information of the physical broadcast channel, determine the retransmission method and the number of retransmissions for the SIB1 PDCCH.

[0015] In some embodiments, the retransmission method includes:

[0016] Repetitive transmission at fixed intervals;

[0017] Alternatively, repeated transmissions at variable intervals.

[0018] In some embodiments, receiving repeatedly transmitted SIB1PDCCH within at least one listening opportunity, based on a repeated transmission method, includes:

[0019] If the retransmission mode is fixed-interval retransmission, then within the fixed-interval listening time, the retransmission of the SIB1 PDCCH corresponding to the same SIB1 information will be received.

[0020] or,

[0021] If the repetitive transmission mode is variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, the repetitive transmission of SIB1 PDCCH corresponding to the same SIB1 information will be received.

[0022] In some embodiments, the repeatedly transmitted SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and SIB1 information is obtained based on the PDSCH scheduling information, including:

[0023] If the retransmission mode is fixed-interval retransmission, then if the retransmitted SIB1 PDCCH is received within the fixed-interval listening time, the retransmitted SIB1 PDCCH will be jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information will be obtained based on the PDSCH scheduling information.

[0024] or,

[0025] If the repetitive transmission mode is variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, if the repetitive transmission of SIB1 PDCCH is received and the number of repetitive transmissions of SIB1 PDCCH reaches the preset number of repetitive transmissions, then the repetitive transmission of SIB1 PDCCH is jointly decoded to obtain the scheduling information of the physical downlink shared channel PDSCH, and SIB1 information is obtained based on the scheduling information of PDSCH.

[0026] In some embodiments, determining the retransmission mode of the Physical Downlink Control Channel (SIB1) PDCCH of System Information Block 1 includes:

[0027] Obtain the configuration information for the listening timing from the main information block MIB;

[0028] Based on the configuration information of the listening timing, the radio frame in which the listening timing occurs and the time slot in the radio frame are determined.

[0029] In some embodiments, the physical layer spare information of the physical broadcast channel is information consisting of N bits in the physical layer spare bits of the physical broadcast channel, where N is an integer greater than or equal to 2;

[0030] N bits including 2 N The repetitive transmission method, where all N bits are zero, corresponds to the non-repetitive transmission method.

[0031] Secondly, this disclosure also proposes a method for enhancing the coverage of the physical downlink control channel, applied to network-side equipment, including:

[0032] Configure the repetitive transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1;

[0033] Based on the repeated transmission method, the SIB1 PDCCH is repeatedly transmitted within at least one listening time.

[0034] In some embodiments, the repetition mode of the physical downlink control channel (SIB1) PDCCH of system information block 1 is configured, including:

[0035] The repetitive transmission method of SIB1 PDCCH is agreed upon in advance with the terminal;

[0036] Alternatively, physical layer backup information can be set for the physical broadcast channel. This physical layer backup information is used to indicate the retransmission method and the number of retransmissions for the SIB1 PDCCH.

[0037] In some embodiments, the retransmission method includes:

[0038] Repetitive transmission at fixed intervals;

[0039] Alternatively, repeated transmissions at variable intervals.

[0040] In some embodiments, based on a retransmission method, the SIB1 PDCCH is repeatedly transmitted within at least one listening opportunity, including:

[0041] If the retransmission method is fixed-interval retransmission, then within the fixed-interval listening time, the SIB1 PDCCH corresponding to the same SIB1 information will be retransmitted.

[0042] or,

[0043] If the repetitive transmission mode is variable interval repetitive transmission, then within the listening time of the interval synchronization signal block SSB transmission cycle, the SIB1 PDCCH corresponding to the same SIB1 information will be repeatedly transmitted.

[0044] Thirdly, embodiments of this disclosure also propose a coverage enhancement device for the physical downlink control channel, applied to a terminal, comprising:

[0045] The determining unit is used to determine the repetition transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1;

[0046] The receiving unit is used to receive the repeatedly transmitted SIB1PDCCH within at least one listening opportunity based on the repeated transmission method.

[0047] The processing unit is used to jointly decode the repeatedly transmitted SIB1 PDCCH to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and to obtain SIB1 information based on the PDSCH scheduling information.

[0048] Fourthly, embodiments of this disclosure also propose a coverage enhancement device for the physical downlink control channel, applied to network-side equipment, comprising:

[0049] The setting unit is used to set the repetition transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1;

[0050] The transmission unit is used to repeatedly transmit the SIB1 PDCCH within at least one listening time based on a repeated transmission method.

[0051] Fifthly, embodiments of this disclosure also provide a terminal, which includes a memory, a transceiver, and a processor;

[0052] Memory is used to store computer programs; transceiver is used to send and receive data under the control of the processor; processor is used to read the computer program from memory and execute it.

[0053] Determine the repetition mode of the physical downlink control channel SIB1 PDCCH of system information block 1;

[0054] Based on the retransmission method, the SIB1 PDCCH is received repeatedly within at least one listening opportunity.

[0055] The repeatedly transmitted SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information is obtained based on the PDSCH scheduling information.

[0056] In some embodiments, determining the retransmission mode of the Physical Downlink Control Channel (SIB1) PDCCH of System Information Block 1 includes:

[0057] The repetitive transmission method of SIB1 PDCCH is pre-agreed with the network-side equipment;

[0058] Alternatively, based on the physical layer backup information of the physical broadcast channel, determine the retransmission method and the number of retransmissions for the SIB1 PDCCH.

[0059] In some embodiments, the retransmission method includes:

[0060] Repetitive transmission at fixed intervals;

[0061] Alternatively, repeated transmissions at variable intervals.

[0062] In some embodiments, receiving repeatedly transmitted SIB1PDCCH within at least one listening opportunity, based on a repeated transmission method, includes:

[0063] If the retransmission mode is fixed-interval retransmission, then within the fixed-interval listening time, the retransmission of the SIB1 PDCCH corresponding to the same SIB1 information will be received.

[0064] or,

[0065] If the repetitive transmission mode is variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, the repetitive transmission of SIB1 PDCCH corresponding to the same SIB1 information will be received.

[0066] In some embodiments, the repeatedly transmitted SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and SIB1 information is obtained based on the PDSCH scheduling information, including:

[0067] If the retransmission mode is fixed-interval retransmission, then if the retransmitted SIB1 PDCCH is received within the fixed-interval listening time, the retransmitted SIB1 PDCCH will be jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information will be obtained based on the PDSCH scheduling information.

[0068] or,

[0069] If the repetitive transmission mode is variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, if the repetitive transmission of SIB1 PDCCH is received and the number of repetitive transmissions of SIB1 PDCCH reaches the preset number of repetitive transmissions, then the repetitive transmission of SIB1 PDCCH is jointly decoded to obtain the scheduling information of the physical downlink shared channel PDSCH, and SIB1 information is obtained based on the scheduling information of PDSCH.

[0070] In some embodiments, determining the retransmission mode of the Physical Downlink Control Channel (SIB1) PDCCH of System Information Block 1 includes:

[0071] Obtain the configuration information for the listening timing from the main information block MIB;

[0072] Based on the configuration information of the listening timing, the radio frame in which the listening timing occurs and the time slot in the radio frame are determined.

[0073] In some embodiments, the physical layer spare information of the physical broadcast channel is information consisting of N bits in the physical layer spare bits of the physical broadcast channel, where N is an integer greater than or equal to 2;

[0074] N bits including 2 N The repetitive transmission method, where all N bits are zero, corresponds to the non-repetitive transmission method.

[0075] Sixthly, embodiments of this disclosure also provide a network-side device, which includes a memory, a transceiver, and a processor;

[0076] Memory is used to store computer programs; transceiver is used to send and receive data under the control of the processor; processor is used to read the computer program from memory and execute it.

[0077] Configure the repetitive transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1;

[0078] Based on the repeated transmission method, the SIB1 PDCCH is repeatedly transmitted within at least one listening time.

[0079] In some embodiments, the repetition mode of the physical downlink control channel (SIB1) PDCCH of system information block 1 is configured, including:

[0080] The repetitive transmission method of SIB1 PDCCH is agreed upon in advance with the terminal;

[0081] Alternatively, physical layer backup information can be set for the physical broadcast channel. This physical layer backup information is used to indicate the retransmission method and the number of retransmissions for the SIB1 PDCCH.

[0082] In some embodiments, the retransmission method includes:

[0083] Repetitive transmission at fixed intervals;

[0084] Alternatively, repeated transmissions at variable intervals.

[0085] In some embodiments, based on a retransmission method, the SIB1 PDCCH is repeatedly transmitted within at least one listening opportunity, including:

[0086] If the retransmission method is fixed-interval retransmission, then within the fixed-interval listening time, the SIB1 PDCCH corresponding to the same SIB1 information will be retransmitted.

[0087] or,

[0088] If the repetitive transmission mode is variable interval repetitive transmission, then within the listening time of the interval synchronization signal block SSB transmission cycle, the SIB1 PDCCH corresponding to the same SIB1 information will be repeatedly transmitted.

[0089] In a seventh aspect, embodiments of this disclosure also provide a processor-readable storage medium, wherein the processor-readable storage medium stores a program for causing a processor to execute a coverage enhancement method for the physical downlink control channel of system information block 1 as described in any embodiment of the first aspect or a coverage enhancement method for the physical downlink control channel of system information block 1 as described in any embodiment of the second aspect.

[0090] In at least one embodiment of this disclosure, the terminal, by determining the repetition mode of the SIB1 PDCCH, can receive the repetitively transmitted SIB1 PDCCH from the network-side device within at least one listening opportunity. It then jointly decodes the repetitively transmitted SIB1 PDCCH to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and obtains SIB1 information based on the PDSCH scheduling information. By combining the repetitively transmitted SIB1 PDCCH, a complete SIB1 PDCCH can be obtained, solving the problem of inaccurate SIB1 PDCCH packet loss due to reduced beam transmit power. This enables the terminal to obtain more accurate SIB1 information, thereby enhancing the SIB1 PDCCH, improving its coverage performance, and increasing the terminal's network access success rate.

[0091] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0092] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings.

[0093] Figure 1 is a flowchart illustrating a method for enhancing the coverage of a physical downlink control channel according to an embodiment of this disclosure;

[0094] Figure 2 is a schematic diagram of a fixed-interval repetitive transmission provided in an embodiment of this disclosure;

[0095] Figure 3 is a schematic diagram of a variable-interval repeated transmission provided in an embodiment of this disclosure;

[0096] Figure 4 is a flowchart illustrating another method for enhancing the coverage of the physical downlink control channel provided in an embodiment of this disclosure;

[0097] Figure 5 is a schematic diagram of a coverage enhancement device for a physical downlink control channel provided in an embodiment of this disclosure;

[0098] Figure 6 is a schematic diagram of another physical downlink control channel coverage enhancement device provided in an embodiment of this disclosure;

[0099] Figure 7 is a schematic diagram of a terminal provided in an embodiment of this disclosure;

[0100] Figure 8 is a schematic diagram of a network-side device provided in an embodiment of this disclosure. Detailed Implementation

[0101] To better understand the above-described objectives, features, and advantages of this disclosure, the present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the described embodiments are only some, not all, of the embodiments of this disclosure. The specific embodiments described herein are merely for explaining this disclosure and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure are within the scope of protection of this disclosure.

[0102] It should be noted that in this article, relational terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0103] Figure 1 is a flowchart illustrating a method for enhancing the coverage of a physical downlink control channel according to an embodiment of this disclosure. This method is applied to a terminal. As shown in Figure 1, the method for enhancing the coverage of the physical downlink control channel may include, but is not limited to, steps 101 to 103:

[0104] In step 101, the repetitive transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1 is determined.

[0105] In this embodiment, the terminal can receive the SIB1 PDCCH repeatedly transmitted by the network-side device by determining the repetition mode of the Physical Downlink Control Channel (PDCCH) of System Information Blocks 1 (SIB1).

[0106] In step 102, based on the repetitive transmission method, the SIB1 PDCCH is received repeatedly during at least one listening opportunity.

[0107] In this embodiment, the monitoring timing can be any of the following:

[0108] Radio frames, time slots within radio frames, and OFDM (Orthogonal Frequency Division Multiplexing) symbols.

[0109] In step 103, the repeatedly transmitted SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information is obtained based on the PDSCH scheduling information.

[0110] In this embodiment, the joint decoding of repeatedly transmitted SIB1 PDCCH can be understood as: combining (i.e. merging) the repeatedly transmitted SIB1 PDCCH to obtain a complete SIB1 PDCCH, and then decoding the complete SIB1 to prevent inaccuracies such as packet loss in a single SIB1 PDCCH.

[0111] As can be seen, in this embodiment, by determining the repetitive transmission mode of the SIB1 PDCCH, the terminal can receive the repetitively transmitted SIB1 PDCCH from the network-side device within at least one listening opportunity. It can then jointly decode the repetitively transmitted SIB1 PDCCH to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and obtain SIB1 information based on the PDSCH scheduling information. Furthermore, by combining the repetitively transmitted SIB1 PDCCH, a complete SIB1 PDCCH can be obtained, solving the problem of inaccurate SIB1 PDCCH packet loss due to reduced beam transmit power. This enables the terminal to obtain more accurate SIB1 information, thereby enhancing the SIB1 PDCCH, improving its coverage performance, and increasing the terminal's network access success rate.

[0112] In some embodiments, step 101 determines the retransmission mode of the physical downlink control channel (SIB1) PDCCH of system information block 1, including terminal blind detection or network-side device indication:

[0113] Terminal blind detection: The repeated transmission method of SIB1 PDCCH is agreed upon in advance with the network side equipment.

[0114] In this process, the terminal and the network-side equipment pre-agree to receive the SIB1 PDCCH repeatedly transmitted by the network-side equipment at a fixed resource location (i.e., the listening time). Then, the terminal can merge the repeatedly transmitted SIB1 PDCCH and jointly decode the repeatedly transmitted SIB1 PDCCH to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and obtain SIB1 information based on the PDSCH scheduling information.

[0115] Network-side device indication: Based on the physical layer backup information of the Physical Broadcast Channel (PBCH), determine the retransmission mode and the number of retransmissions for the SIB1 PDCCH.

[0116] In this process, the network-side equipment uses the physical layer backup information of the PBCH, such as N bits (e.g., 2 bits), to indicate the retransmission information related to the SIB1 PDCCH (including the retransmission mode and the number of retransmissions). The terminal can merge the retransmitted SIB1 PDCCH based on the PBCH physical layer backup information, and jointly decode the retransmitted SIB1 PDCCH to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and obtain the SIB1 information based on the PDSCH scheduling information.

[0117] It should be noted that terminals supporting SIB1 PDCCH enhancement (referred to as new terminals) can identify the physical layer backup information of the PBCH and then merge repeatedly transmitted SIB1 PDCCH based on the physical layer backup information of the PBCH. Terminals that do not support SIB1 PDCCH enhancement (referred to as original terminals) cannot identify the physical layer backup information of the PBCH and still use the existing method to receive SIB1 PDCCH.

[0118] In some embodiments, the repeated transmission method of SIB1 PDCCH in step 102 includes method one or method two:

[0119] Method 1: Repetitive transmission at fixed intervals.

[0120] Method 2: Repeated transmission with variable intervals.

[0121] In this embodiment, whether it is a terminal blind detection or a network-side device indication, the network-side device can repeatedly transmit the SIB1 PDCCH using either method one or method two.

[0122] In Method 1, fixed-interval repetitive transmission can be understood as: repeatedly transmitting the SIB1 PDCCH corresponding to the Synchronization Signal Block (SSB) within one PDCCH listening period (e.g., 20 milliseconds (ms)). Since the PDCCH listening period is fixed, this method is called fixed-interval repetitive transmission.

[0123] In Method 2, variable-interval repetitive transmission can be understood as binding the interval between two repetitive SIB1 PDCCHs to the SSB transmission cycle, and retransmitting the SIB1 PDCCH corresponding to the SSB every SSB transmission cycle. Since the SSB transmission cycle is variable, this method is called variable-interval repetitive transmission.

[0124] In some embodiments, step 102, based on the retransmission method, receiving the repeatedly transmitted SIB1 PDCCH within at least one listening opportunity includes (1) or (2):

[0125] (1) If the retransmission mode is fixed interval retransmission, then within the fixed interval listening time, the retransmission of SIB1 PDCCH corresponding to the same SIB1 information is received.

[0126] (2) If the repetitive transmission mode is variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, the repetitive transmission of SIB1 PDCCH corresponding to the same SIB1 information is received.

[0127] In both fixed-interval and variable-interval repetitive transmissions, what is received during each listening session is one repetitive transmission of the SIB1 PDCCH.

[0128] In this embodiment, when the terminal receives the SIB1 PDCCH, it can perform a blind detection or use the physical layer backup information of the PBCH indicated by the network-side device. When using the physical layer backup information of the PBCH indicated by the network-side device, the network-side device configures N bits (N is an integer greater than or equal to 2) of physical layer backup information in the PBCH of the SSB as 2. N There are several different repetition transmission methods, and the repetition transmission method corresponding to N bits being all zero is the non-repetition transmission method. Taking N=2 as an example, the physical layer reserve information of PBCH indicated by the network-side device is shown in Table 1 below:

[0129] Table 1. Physical Layer Backup Information for PBCH

[0130] As can be seen, new terminals supporting SIB1 PDCCH enhancement can determine the retransmission method and the number of retransmissions by identifying the physical layer backup information of the PBCH indicated by the network-side device. In Table 1, the maximum number of retransmissions is limited to 2, which can improve the performance of SIB1 PDCCH and reduce the complexity of blind detection when the terminal receives SIB1 PDCCH through blind detection.

[0131] In (1), if the repetitive transmission method is fixed-interval repetitive transmission and the terminal adopts blind detection, then the terminal and the network-side device pre-agree to receive the SIB1PDCCH repeatedly transmitted by the network-side device at a fixed resource location (i.e., the listening time). The terminal obtains the configuration information of the listening time from the Master Information Block (MIB), and based on the configuration information of the listening time, determines the radio frame in which the listening time is located and the time slot of the listening time in the radio frame.

[0132] For example, the terminal determines the M based on the least significant bits (LSB) of the pdcch-ConfigSIB1 parameter of the MIB. frame and n0, where M frame The value of n0 represents the radio frame containing the SIB1 PDCCH. When this value is 0, the listening time is in an even-numbered frame; when this value is 1, the listening time is in an odd-numbered frame. n0 is the time slot in which the SIB1 PDCCH resides within that radio frame. The terminal listens to two time slots within each radio frame being monitored. The network-side device configures M... frame The parameter values ​​for n0 can be freely selected to determine the time slot where the SIB1 PDCCH is located. The terminal determines M... frame After n0, when the first SIB1 PDCCH is detected, the second SIB1 PDCCH that is repeatedly transmitted can be blindly detected at a fixed resource location (i.e., the listening time) according to the pre-agreed agreement with the network-side equipment.

[0133] In (1), if the repetitive transmission mode is fixed-interval repetitive transmission, and the terminal is indicated by the network-side device, then the terminal determines the M based on the least significant bit (LSB) of the pdcch-ConfigSIB1 parameter of the MIB. frame After n0, taking the 2-bit PBCH physical layer backup information as an example, refer to Table 1. When the PBCH physical layer backup information is configured as 00, that is, when the network-side device configures the SIB1 PDCCH retransmission count to be 1, the terminal will receive the SIB1 PDCCH within the listening time; when the PBCH physical layer backup information is configured as 01, that is, when the network-side device configures the SIB1 PDCCH retransmission count to be 2, it indicates that the network-side device will receive the SIB1 PDCCH within the listening time. frame The terminal transmits the SIB1 PDCCH corresponding to the first group of SSBs at the listening time determined by n0, and then transmits the SIB1 PDCCH corresponding to the second group of SSBs in the adjacent time slot. The terminal receives the SIB1 PDCCH repeatedly transmitted by the network side device at fixed intervals, merges the two SIB1 PDCCHs, and then decodes the SIB1 information scheduled for transmission.

[0134] Figure 2 is a schematic diagram of a fixed-interval repetitive transmission provided by an embodiment of this disclosure. In Figure 2, each frame includes 10 time slots. 0 in time slot 2 represents the first transmission of SIB1 PDCCH 0, and 00 in time slot 6 represents the second transmission (i.e., repetitive transmission) of SIB1 PDCCH 0. Similarly, 1 in time slot 2 represents the first transmission of SIB1 PDCCH 1, and 11 in time slot 6 represents the second transmission (i.e., repetitive transmission) of SIB1 PDCCH 1. It can be understood that 0, 1, ..., 7 in Figure 2, and 00, 11, ..., 77 in Figure 2, all represent listening opportunities.

[0135] In Figure 2, if the terminal uses blind detection, when the terminal detects the first SIB1 PDCCH 0 at time slot 2(0), it can blindly detect the second SIB1 PDCCH 0, which is repeatedly transmitted, at time slot 6(00) according to the pre-agreed agreement with the network-side device. If the terminal is instructed by the network-side device, when the terminal detects the first SIB1 PDCCH 0 at time slot 2(0), it can receive the second SIB1 PDCCH 0, which is repeatedly transmitted by the network-side device, at fixed intervals at time slot 6(00).

[0136] In (2), if the repetitive transmission method is variable interval repetitive transmission and the terminal uses blind detection, then the transmission interval of the two SIB1 PDCCHs is bound to the SSB transmission cycle. Every SSB transmission cycle, the terminal receives the PDCCH corresponding to the SSB during the listening time. When the terminal receives the repetitive SIB1 PDCCH through blind detection, the terminal first checks whether there are two repetitive SIB1 PDCCHs corresponding to the SSB during the listening time of one SSB transmission cycle. If two SIB1 PDCCHs are detected, they are merged, received, and decoded. If two repetitive SIB1 PDCCHs corresponding to the SSB are not detected during the listening time of one SSB transmission cycle, the terminal checks the second SIB1 PDCCH corresponding to the SSB in the next SSB transmission cycle according to the SSB transmission cycle, merges, receives, and decodes the two SIB1 PDCCHs.

[0137] In (2), if the repetitive transmission mode is variable-interval repetitive transmission, and the terminal is instructed by the network-side device, then the transmission interval of the two SIB1 PDCCHs is bound to the SSB transmission cycle. Every SSB transmission cycle, the terminal receives the PDCCH corresponding to the SSB during the listening period. The terminal determines the M based on the least significant bits (LSB) of the pdcch-ConfigSIB1 parameter of the MIB. frameAfter n0, taking the 2-bit PBCH physical layer backup information as an example, refer to Table 1. When the PBCH physical layer backup information is configured as 00, that is, when the network-side device configures the SIB1 PDCCH retransmission count as 1, the terminal will receive the SIB1 PDCCH within the listening time. When the PBCH physical layer backup information is configured as 10, that is, when the network-side device configures the SIB1 PDCCH retransmission count as 2, the terminal receives the two SIB1 PDCCHs retransmitted corresponding to the SSBs of the two SSB transmission cycles, then merges the two SIB1 PDCCHs, and then decodes the SIB1 information scheduled for transmission.

[0138] Figure 3 is a schematic diagram of a variable-interval repetitive transmission provided by an embodiment of this disclosure. In Figure 3, the listening time in two SSB transmission cycles is shaded. In Figure 3, if the terminal uses a blind detection method, when the terminal detects the first SIB1 PDCCH at the listening time of the first SSB transmission cycle, it can blindly detect the repetitive transmission of the second SIB1 PDCCH at the listening time of the second SSB transmission cycle according to the pre-agreed agreement with the network-side device. If the terminal is instructed by the network-side device, when the terminal detects the first SIB1 PDCCH at the listening time of the first SSB transmission cycle, it can receive the repetitive transmission of the second SIB1 PDCCH from the network-side device at the listening time of the second SSB transmission cycle after an SSB transmission cycle.

[0139] In some embodiments, in step 103, the repeatedly transmitted SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and SIB1 information is obtained based on the PDSCH scheduling information, including method A or method B:

[0140] Method A: If the repetitive transmission method is fixed-interval repetitive transmission, then if the repetitive SIB1 PDCCH is received within the fixed-interval listening time, the repetitive SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information is obtained based on the PDSCH scheduling information.

[0141] Method B: If the repetitive transmission method is variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, if the repetitive transmission of SIB1 PDCCH is received and the number of repetitive transmissions of SIB1 PDCCH reaches the preset number of repetitive transmissions, then the repetitive transmission of SIB1 PDCCH is jointly decoded to obtain the scheduling information of the physical downlink shared channel PDSCH, and SIB1 information is obtained based on the scheduling information of PDSCH.

[0142] Example 1

[0143] The network-side device configures the 2 bits of physical layer spare information in the PBCH to 00. See Table 1. The SIB1 PDCCH is transmitted once.

[0144] The terminal identifies the content of the physical layer backup information of the PBCH and determines the M based on the least significant bits (LSB) of the pdcch-ConfigSIB1 parameter of the MIB. frame and n0, in M frame Within the listening time determined by n0, receive the SIB1 PDCCH and decode the SIB1 information.

[0145] After the terminal obtains SSB and SIB1 information and completes synchronization, it initiates a random access procedure.

[0146] Example 2

[0147] The network-side device configures the 2 bits of physical layer spare information in the PBCH to 01, as shown in Table 1. The network-side device will transmit the SIB1 PDCCH twice consecutively according to the channel conditions.

[0148] The terminal identifies the content of the physical layer backup information of the PBCH. Based on the LSB of the pdcch-ConfigSIB1 parameter of the MIB being 0011, indicating an index of 3, it determines the M... frame For n0, the first SIB1 PDCCH corresponding to SSBi is received in the third time slot of the even-numbered frame. Then, the second SIB1 PDCCH corresponding to SSBi is received in the seventh time slot of the even-numbered frame within a fixed interval (PDCCH listening period). Finally, the SIB1 information is decoded after being combined and received.

[0149] After the terminal obtains SSB and SIB1 information and completes synchronization, it initiates a random access procedure.

[0150] Example 3

[0151] The network-side device sends two SIB1 PDCCHs corresponding to SSBi at a fixed position within a PDCCH listening cycle.

[0152] Terminal determines LSB based on pdcch-ConfigSIB1 parameter of MIB. frame For n0, first receive the first SIB1 PDCCH corresponding to SSBi, then blindly detect the second SIB1 PDCCH corresponding to SSBi at a fixed position. When two SIB1 PDCCHs corresponding to SSBi are detected, merge the two SIB1 PDCCHs and decode the SIB1 information.

[0153] After the terminal obtains SSB and SIB1 information and completes synchronization, it initiates a random access procedure.

[0154] Example 4

[0155] The network-side device sends the first SIB1 PDCCH corresponding to SSBi within one PDCCH listening cycle, and sends the second SIB1 PDCCH corresponding to SSBi after an SSB transmission cycle.

[0156] Terminal determines LSB based on pdcch-ConfigSIB1 parameter of MIB. frame For n0, first receive the first SIB1 PDCCH corresponding to SSBi, then blindly detect the second SIB1 PDCCH corresponding to SSBi at a fixed position within the PDCCH listening period. When the second SIB1 PDCCH is not detected, receive the second SIB1 PDCCH corresponding to SSBi after an interval of one SSB transmission period. After successful detection, merge the two SIB1 PDCCHs and decode the SIB1 information.

[0157] After the terminal obtains SSB and SIB1 information and completes synchronization, it initiates a random access procedure.

[0158] Example 5

[0159] The network-side device configures the 2 bits of physical layer spare information in the PBCH to 10, as shown in Table 1. The network-side device will transmit the SIB1 PDCCH twice consecutively according to the channel conditions.

[0160] The terminal identifies the content of the physical layer backup information of the PBCH and determines the M based on the LSB of the pdcch-ConfigSIB1 parameter of the MIB. frame For n0, first receive the first SIB1 PDCCH corresponding to SSBi, and after one SSB transmission cycle, receive the second SIB1 PDCCH corresponding to SSBi. After merging the two SIB1 PDCCHs, decode the SIB1 information.

[0161] After the terminal obtains SSB and SIB1 information and completes synchronization, it initiates a random access procedure.

[0162] Figure 4 is a flowchart illustrating another method for enhancing the coverage of the physical downlink control channel provided in this embodiment of the present disclosure. This method is applied to a network-side device. The network-side device can be a base station. As shown in Figure 4, the method for enhancing the coverage of the physical downlink control channel of system information block 1 may include, but is not limited to, steps 401 and 402:

[0163] In step 401, the repetitive transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1 is set.

[0164] In step 402, based on the repeated transmission method, the SIB1 PDCCH is repeatedly transmitted within at least one listening opportunity.

[0165] In some embodiments, step 401, setting the repetition mode of the physical downlink control channel SIB1 PDCCH of system information block 1, includes:

[0166] The repetitive transmission method of SIB1 PDCCH is agreed upon in advance with the terminal;

[0167] Alternatively, physical layer backup information can be set for the physical broadcast channel. This physical layer backup information is used to indicate the retransmission method and the number of retransmissions for the SIB1 PDCCH.

[0168] In some embodiments, the retransmission method includes:

[0169] Repetitive transmission at fixed intervals;

[0170] Alternatively, repeated transmissions at variable intervals.

[0171] In some embodiments, step 402, based on a repeated transmission method, involves repeatedly transmitting the SIB1 PDCCH within at least one listening opportunity, including:

[0172] If the retransmission method is fixed-interval retransmission, then within the fixed-interval listening time, the SIB1 PDCCH corresponding to the same SIB1 information will be retransmitted.

[0173] or,

[0174] If the repetitive transmission mode is variable interval repetitive transmission, then within the listening time of the interval synchronization signal block SSB transmission cycle, the SIB1 PDCCH corresponding to the same SIB1 information will be repeatedly transmitted.

[0175] The details of the related embodiments in Figure 4 are the same as those in Figure 1, and will not be repeated here.

[0176] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art will understand that the embodiments of this disclosure are not limited to the described order of actions, because according to the embodiments of this disclosure, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art will understand that the embodiments described in the specification are all optional embodiments.

[0177] Figure 5 is a schematic diagram of a coverage enhancement device for the physical downlink control channel provided in an embodiment of this disclosure. This device is applied to a terminal. As shown in Figure 5, the coverage enhancement device for the physical downlink control channel of system information block 1 includes, but is not limited to, a determining unit 51, a receiving unit 52, and a processing unit 53, as described below:

[0178] The determining unit 51 is used to determine the repetition transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1;

[0179] The receiving unit 52 is configured to receive the repeatedly transmitted SIB1PDCCH within at least one listening opportunity based on the repeated transmission method.

[0180] Processing unit 53 is used to jointly decode the repeatedly transmitted SIB1 PDCCH to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and obtain SIB1 information based on the PDSCH scheduling information.

[0181] In some embodiments, the determining unit 51 is configured to:

[0182] The repetitive transmission method of SIB1 PDCCH is pre-agreed with the network-side equipment;

[0183] Alternatively, based on the physical layer backup information of the physical broadcast channel, determine the retransmission method and the number of retransmissions for the SIB1 PDCCH.

[0184] In some embodiments, the retransmission method includes:

[0185] Repetitive transmission at fixed intervals;

[0186] Alternatively, repeated transmissions at variable intervals.

[0187] In some embodiments, the receiving unit 52 is configured to:

[0188] If the retransmission mode is fixed-interval retransmission, then within the fixed-interval listening time, the retransmission of the SIB1 PDCCH corresponding to the same SIB1 information will be received.

[0189] or,

[0190] If the repetitive transmission mode is variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, the repetitive transmission of SIB1 PDCCH corresponding to the same SIB1 information will be received.

[0191] In some embodiments, the processing unit 53 is used to:

[0192] If the retransmission mode is fixed-interval retransmission, then if the retransmitted SIB1 PDCCH is received within the fixed-interval listening time, the retransmitted SIB1 PDCCH will be jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information will be obtained based on the PDSCH scheduling information.

[0193] or,

[0194] If the repetitive transmission mode is variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, if the repetitive transmission of SIB1 PDCCH is received and the number of repetitive transmissions of SIB1 PDCCH reaches the preset number of repetitive transmissions, then the repetitive transmission of SIB1 PDCCH is jointly decoded to obtain the scheduling information of the physical downlink shared channel PDSCH, and SIB1 information is obtained based on the scheduling information of PDSCH.

[0195] In some embodiments, the determining unit 51 is further configured to:

[0196] Obtain the configuration information for the listening timing from the main information block (MIB); based on the configuration information for the listening timing, determine the radio frame in which the listening timing occurs and the time slot within the radio frame.

[0197] In some embodiments, the physical layer spare information of the physical broadcast channel is information consisting of N bits in the physical layer spare bits of the physical broadcast channel, where N is an integer greater than or equal to 2;

[0198] N bits including 2 N The repetitive transmission method, where all N bits are zero, corresponds to the non-repetitive transmission method.

[0199] For details of the various embodiments of the coverage enhancement device for the physical downlink control channel of system information block 1 shown in Figure 5, please refer to the various embodiments of the coverage enhancement method for the physical downlink control channel of system information block 1 shown in Figure 1. To avoid repetition, these details will not be repeated.

[0200] Figure 6 is a schematic diagram of another physical downlink control channel coverage enhancement device provided in an embodiment of this disclosure. This device is applied to network-side equipment. As shown in Figure 6, the physical downlink control channel coverage enhancement device of system information block 1 includes, but is not limited to, a setting unit 61 and a transmission unit 62, as described below:

[0201] Setting unit 61 is used to set the repetition transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1;

[0202] The transmission unit 62 is used to repeatedly transmit SIB1PDCCH within at least one listening opportunity based on the repeated transmission method.

[0203] In some embodiments, the setting unit 61 is used for:

[0204] The repetitive transmission method of SIB1 PDCCH is agreed upon in advance with the terminal;

[0205] Alternatively, physical layer backup information can be set for the physical broadcast channel. This physical layer backup information is used to indicate the retransmission method and the number of retransmissions for the SIB1 PDCCH.

[0206] In some embodiments, the retransmission method includes:

[0207] Repetitive transmission at fixed intervals;

[0208] Alternatively, repeated transmissions at variable intervals.

[0209] In some embodiments, the transmission unit 62 is used for:

[0210] If the retransmission method is fixed-interval retransmission, then within the fixed-interval listening time, the SIB1 PDCCH corresponding to the same SIB1 information will be retransmitted.

[0211] or,

[0212] If the repetitive transmission mode is variable interval repetitive transmission, then within the listening time of the interval synchronization signal block SSB transmission cycle, the SIB1 PDCCH corresponding to the same SIB1 information will be repeatedly transmitted.

[0213] For details of the various embodiments of the coverage enhancement device for the physical downlink control channel of system information block 1 shown in Figure 6, please refer to the various embodiments of the coverage enhancement method for the physical downlink control channel of system information block 1 shown in Figure 4. To avoid repetition, these details will not be repeated.

[0214] This disclosure also provides a processor-readable storage medium storing a program for causing a processor to execute the steps of various embodiments of the physical downlink control channel coverage enhancement method for system information block 1. The processor-readable storage medium can be any available medium or data storage device accessible to the processor, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical memory (e.g., CD, DVD, BD, HVD, etc.), and semiconductor memory (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD), etc.).

[0215] Figure 7 is a schematic diagram of a terminal provided in an embodiment of this disclosure. As shown in Figure 7, the terminal provided in this embodiment includes a memory 71, a transceiver 72, and a processor 73.

[0216] Memory 71 is used to store computer programs; transceiver 72 is used to send and receive data under the control of processor 73; processor 73 is used to read the computer program from memory 71 and execute it.

[0217] Determine the repetition mode of the physical downlink control channel SIB1 PDCCH of system information block 1;

[0218] Based on the retransmission method, the SIB1 PDCCH is received repeatedly within at least one listening opportunity.

[0219] The repeatedly transmitted SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information is obtained based on the PDSCH scheduling information.

[0220] In some embodiments, determining the retransmission mode of the Physical Downlink Control Channel (SIB1) PDCCH of System Information Block 1 includes:

[0221] The repetitive transmission method of SIB1 PDCCH is pre-agreed with the network-side equipment;

[0222] Alternatively, based on the physical layer backup information of the physical broadcast channel, determine the retransmission method and the number of retransmissions for the SIB1 PDCCH.

[0223] In some embodiments, the retransmission method includes:

[0224] Repetitive transmission at fixed intervals;

[0225] Alternatively, repeated transmissions at variable intervals.

[0226] In some embodiments, receiving repeatedly transmitted SIB1PDCCH within at least one listening opportunity, based on a repeated transmission method, includes:

[0227] If the retransmission mode is fixed-interval retransmission, then within the fixed-interval listening time, the retransmission of the SIB1 PDCCH corresponding to the same SIB1 information will be received.

[0228] or,

[0229] If the repetitive transmission mode is variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, the repetitive transmission of SIB1 PDCCH corresponding to the same SIB1 information will be received.

[0230] In some embodiments, the repeatedly transmitted SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and SIB1 information is obtained based on the PDSCH scheduling information, including:

[0231] If the retransmission mode is fixed-interval retransmission, then if the retransmitted SIB1 PDCCH is received within the fixed-interval listening time, the retransmitted SIB1 PDCCH will be jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information will be obtained based on the PDSCH scheduling information.

[0232] or,

[0233] If the repetitive transmission mode is variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, if the repetitive transmission of SIB1 PDCCH is received and the number of repetitive transmissions of SIB1 PDCCH reaches the preset number of repetitive transmissions, then the repetitive transmission of SIB1 PDCCH is jointly decoded to obtain the scheduling information of the physical downlink shared channel PDSCH, and SIB1 information is obtained based on the scheduling information of PDSCH.

[0234] In some embodiments, determining the retransmission mode of the Physical Downlink Control Channel (SIB1) PDCCH of System Information Block 1 includes:

[0235] Obtain the configuration information for the listening timing from the main information block MIB;

[0236] Based on the configuration information of the listening timing, the radio frame in which the listening timing occurs and the time slot in the radio frame are determined.

[0237] In some embodiments, the physical layer spare information of the physical broadcast channel is information consisting of N bits in the physical layer spare bits of the physical broadcast channel, where N is an integer greater than or equal to 2;

[0238] N bits including 2 N The repetitive transmission method, where all N bits are zero, corresponds to the non-repetitive transmission method.

[0239] In Figure 7, transceiver 72 is used to receive and transmit data under the control of processor 73. The bus architecture can include any number of interconnected buses and bridges, linking various circuits of one or more processors represented by processor 73 and memory represented by memory 71. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 72 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. Processor 73 is responsible for managing the bus architecture and general processing, and memory 71 can store data used by processor 73 during operation.

[0240] In Figure 7, processor 73 can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed through integrated logic circuits in the hardware of processor 73 or through software instructions. Processor 73 can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor can be a microprocessor or any conventional processor.

[0241] Figure 8 is a schematic diagram of a network-side device provided in an embodiment of this disclosure. As shown in Figure 8, the network-side device provided in this embodiment includes a memory 81, a transceiver 82, and a processor 83.

[0242] Memory 81 is used to store computer programs; transceiver 82 is used to send and receive data under the control of processor 83; processor 83 is used to read the computer program from memory 81 and execute it.

[0243] Configure the repetitive transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1;

[0244] Based on the repeated transmission method, the SIB1 PDCCH is repeatedly transmitted within at least one listening time.

[0245] In some embodiments, the repetition mode of the physical downlink control channel (SIB1) PDCCH of system information block 1 is configured, including:

[0246] The repetitive transmission method of SIB1 PDCCH is agreed upon in advance with the terminal;

[0247] Alternatively, physical layer backup information can be set for the physical broadcast channel. This physical layer backup information is used to indicate the retransmission method and the number of retransmissions for the SIB1 PDCCH.

[0248] In some embodiments, the retransmission method includes:

[0249] Repetitive transmission at fixed intervals;

[0250] Alternatively, repeated transmissions at variable intervals.

[0251] In some embodiments, based on a retransmission method, the SIB1 PDCCH is repeatedly transmitted within at least one listening opportunity, including:

[0252] If the retransmission method is fixed-interval retransmission, then within the fixed-interval listening time, the SIB1 PDCCH corresponding to the same SIB1 information will be retransmitted.

[0253] or,

[0254] If the repetitive transmission mode is variable interval repetitive transmission, then within the listening time of the interval synchronization signal block SSB transmission cycle, the SIB1 PDCCH corresponding to the same SIB1 information will be repeatedly transmitted.

[0255] In Figure 8, transceiver 82 is used to receive and transmit data under the control of processor 83. The bus architecture can include any number of interconnected buses and bridges, linking various circuits of one or more processors represented by processor 83 and memory represented by memory 81. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 82 can be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. Processor 83 is responsible for managing the bus architecture and general processing, and memory 81 can store data used by processor 83 during operation.

[0256] In Figure 8, processor 83 can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed through integrated logic circuits in the hardware of processor 83 or through software instructions. Processor 83 can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor can be a microprocessor or any conventional processor.

[0257] In this embodiment of the disclosure, the terminal may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connectivity, or other processing devices connected to a wireless modem. The name of the terminal may differ in different systems; for example, in a 5G system, the terminal may be called User Equipment (UE). The wireless terminal device may be a USB storage device, other personal computer memory devices, or a dongle. It may also communicate with one or more core networks (CNs) via a Radio Access Network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device that exchanges voice and / or data with the radio access network. Examples of such devices include Personal Communication Service (PCS) telephones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), personal computers, tablets, and Machine-type Communication (MTC) terminal devices. Wireless terminal devices can also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile devices, remote stations, access points, remote terminals, access terminals, user terminals, user agents, user devices, and wireless access devices and routers / modems that meet the limitations of this definition, but are not limited to these in the embodiments of this disclosure.

[0258] The technical solutions provided in this disclosure are applicable to a variety of systems. For example, applicable systems may include Long Term Evolution Advanced (LTE-A) systems, Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5G New Radio (NR) systems and their evolved communication systems, and 6G (sixth generation mobile communication technology) systems. These systems may include terminal equipment and network equipment. The systems may also include a core network component, such as Evolved Packet Core (EPC) and 5G Core Network (5GC).

[0259] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0260] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of this disclosure and form different embodiments.

[0261] Those skilled in the art will understand that the descriptions of the various embodiments have different focuses, and for parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0262] Although embodiments of the present disclosure have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present disclosure, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A method for enhancing the coverage of a physical downlink control channel, applied to a terminal, comprising: Determine the repetition mode of the physical downlink control channel SIB1 PDCCH of system information block 1; Based on the aforementioned repetitive transmission method, the SIB1 PDCCH is received repeatedly within at least one listening opportunity. The repeatedly transmitted SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information is obtained based on the scheduling information of the PDSCH.

2. The method according to claim 1, wherein, The method for determining the repetitive transmission mode of the Physical Downlink Control Channel (SIB1PDCCH) of System Information Block 1 includes: The repetitive transmission method of SIB1 PDCCH is pre-agreed with the network-side equipment; Alternatively, based on the physical layer backup information of the physical broadcast channel, determine the retransmission method and the number of retransmissions for the SIB1 PDCCH.

3. The method according to claim 1 or 2, wherein, The repeated transmission method includes: Repetitive transmission at fixed intervals; Alternatively, repeated transmissions at variable intervals.

4. The method according to claim 3, wherein, The method of receiving repeatedly transmitted SIB1 PDCCH within at least one listening opportunity based on the repeated transmission method includes: If the repetitive transmission method is a fixed-interval repetitive transmission, then within the fixed-interval listening time, the repetitive transmission of the SIB1 PDCCH corresponding to the same SIB1 information is received. or, If the repetitive transmission mode is a variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, the repetitive transmission of SIB1 PDCCH corresponding to the same SIB1 information is received.

5. The method according to claim 4, wherein, The step of jointly decoding the repeatedly transmitted SIB1 PDCCH to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and obtaining SIB1 information based on the PDSCH scheduling information, includes: If the repetitive transmission method is a fixed-interval repetitive transmission, then if the repetitive transmission SIB1 PDCCH is received within the listening time of the fixed interval, the repetitive transmission SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and SIB1 information is obtained based on the scheduling information of the PDSCH. or, If the repetitive transmission method is a variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, if a repetitive transmission of SIB1 PDCCH is received and the number of repetitive transmissions of SIB1 PDCCH reaches the preset number of repetitive transmissions, then the repetitive transmission of SIB1 PDCCH is jointly decoded to obtain the scheduling information of the physical downlink shared channel PDSCH, and SIB1 information is obtained based on the scheduling information of the PDSCH.

6. The method according to claim 1, wherein, The method for determining the repetitive transmission mode of the Physical Downlink Control Channel (SIB1PDCCH) of System Information Block 1 includes: Obtain the configuration information for the listening timing from the main information block MIB; Based on the configuration information of the listening timing, the radio frame in which the listening timing occurs and the time slot of the listening timing in the radio frame are determined.

7. The method according to claim 2, wherein, The physical layer backup information of the physical broadcast channel is information consisting of N bits from the physical layer backup bits of the physical broadcast channel, where N is an integer greater than or equal to 2. The N bits include 2 N The repetitive transmission mode, where all N bits are zero, corresponds to a repetitive transmission mode where no repetitive transmission mode is used.

8. A method for enhancing coverage of the physical downlink control channel, applied to network-side equipment, comprising: Configure the repetitive transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1; Based on the aforementioned repeated transmission method, the SIB1 PDCCH is repeatedly transmitted within at least one listening opportunity.

9. The method according to claim 8, wherein, The repetitive transmission mode of the physical downlink control channel SIB1PDCCH of the system information block 1 includes: The repeated transmission method of SIB1 PDCCH is agreed upon in advance with the terminal; Alternatively, physical layer backup information can be set for the physical broadcast channel, which indicates the retransmission mode and number of retransmissions for the SIB1PDCCH.

10. The method according to claim 8 or 9, wherein, The repeated transmission method includes: Repetitive transmission at fixed intervals; Alternatively, repeated transmissions at variable intervals.

11. The method according to claim 10, wherein, The method of repeatedly transmitting the SIB1 PDCCH within at least one listening opportunity, based on the repeated transmission method, includes: If the repeated transmission method is a fixed-interval repeated transmission, then within the listening time interval of the fixed interval, the SIB1 PDCCH corresponding to the same SIB1 information will be repeatedly transmitted. or, If the repetitive transmission method is a variable interval repetitive transmission, then within the listening time of the interval synchronization signal block SSB transmission period, the SIB1 PDCCH corresponding to the same SIB1 information will be repeatedly transmitted.

12. A coverage enhancement device for a physical downlink control channel, applied to a terminal, comprising: The determining unit is used to determine the repetition transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1; The receiving unit is configured to receive the repeatedly transmitted SIB1PDCCH within at least one listening opportunity based on the repeated transmission method. The processing unit is used to jointly decode the repeatedly transmitted SIB1 PDCCH to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and to obtain SIB1 information based on the scheduling information of the PDSCH.

13. A coverage enhancement device for a physical downlink control channel, applied to network-side equipment, comprising: The setting unit is used to set the repetition transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1; The transmission unit is used to repeatedly transmit the SIB1 PDCCH within at least one listening time based on the repeated transmission method.

14. A terminal, wherein, Includes memory, transceiver, and processor; The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and execute them. Determine the repetition mode of the physical downlink control channel SIB1 PDCCH of system information block 1; Based on the aforementioned repetitive transmission method, the SIB1 PDCCH is received repeatedly within at least one listening opportunity. The repeatedly transmitted SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and the SIB1 information is obtained based on the scheduling information of the PDSCH.

15. The terminal according to claim 14, wherein, The method for determining the repetitive transmission mode of the Physical Downlink Control Channel (SIB1) PDCCH of System Information Block 1 includes: The repetitive transmission method of SIB1 PDCCH is pre-agreed with the network-side equipment; Alternatively, based on the physical layer backup information of the physical broadcast channel, determine the retransmission method and the number of retransmissions for the SIB1 PDCCH.

16. The terminal according to claim 14 or 15, wherein, The repeated transmission method includes: Repetitive transmission at fixed intervals; Alternatively, repeated transmissions at variable intervals.

17. The terminal according to claim 16, wherein, The method of receiving repeatedly transmitted SIB1 PDCCH within at least one listening opportunity based on the repeated transmission method includes: If the repetitive transmission method is a fixed-interval repetitive transmission, then within the listening time interval of the fixed interval, the repetitive transmission of the SIB1 PDCCH corresponding to the same SIB1 information is received. or, If the repetitive transmission mode is a variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, the repetitive transmission of SIB1 PDCCH corresponding to the same SIB1 information is received.

18. The terminal according to claim 17, wherein, The step of jointly decoding the repeatedly transmitted SIB1 PDCCH to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and obtaining SIB1 information based on the PDSCH scheduling information, includes: If the repetitive transmission method is a fixed-interval repetitive transmission, then if the repetitive transmission SIB1 PDCCH is received within the listening time of the fixed interval, the repetitive transmission SIB1 PDCCH is jointly decoded to obtain the scheduling information of the Physical Downlink Shared Channel (PDSCH), and SIB1 information is obtained based on the scheduling information of the PDSCH. or, If the repetitive transmission method is a variable interval repetitive transmission, then during the listening time of the interval synchronization signal block SSB transmission period, if a repetitive transmission of SIB1 PDCCH is received and the number of repetitive transmissions of SIB1 PDCCH reaches the preset number of repetitive transmissions, then the repetitive transmission of SIB1 PDCCH is jointly decoded to obtain the scheduling information of the physical downlink shared channel PDSCH, and SIB1 information is obtained based on the scheduling information of the PDSCH.

19. The terminal according to claim 14, wherein, The method for determining the repetitive transmission mode of the Physical Downlink Control Channel (SIB1) PDCCH of System Information Block 1 includes: Obtain the configuration information for the listening timing from the main information block MIB; Based on the configuration information of the listening timing, the radio frame in which the listening timing occurs and the time slot of the listening timing in the radio frame are determined.

20. The terminal according to claim 15, wherein, The physical layer backup information of the physical broadcast channel is information consisting of N bits from the physical layer backup bits of the physical broadcast channel, where N is an integer greater than or equal to 2. The N bits include 2 N The repetitive transmission mode, where all N bits are zero, corresponds to a repetitive transmission mode where no repetitive transmission mode is used.

21. A network-side device, wherein, Includes memory, transceiver, and processor; The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and execute them. Configure the repetitive transmission mode of the physical downlink control channel SIB1 PDCCH of system information block 1; Based on the aforementioned repeated transmission method, the SIB1 PDCCH is repeatedly transmitted within at least one listening opportunity.

22. The network-side device according to claim 21, wherein, The repetitive transmission mode of the Physical Downlink Control Channel (SIB1) PDCCH of the system information block 1 includes: The repeated transmission method of SIB1 PDCCH is agreed upon in advance with the terminal; Alternatively, physical layer backup information can be set for the physical broadcast channel, which indicates the retransmission mode and number of retransmissions for the SIB1PDCCH.

23. The network-side device according to claim 21 or 22, wherein, The repeated transmission method includes: Repetitive transmission at fixed intervals; Alternatively, repeated transmissions at variable intervals.

24. The network-side device according to claim 23, wherein, The method of repeatedly transmitting the SIB1 PDCCH within at least one listening opportunity, based on the repeated transmission method, includes: If the repeated transmission method is a fixed-interval repeated transmission, then within the listening time interval of the fixed interval, the SIB1 PDCCH corresponding to the same SIB1 information will be repeatedly transmitted. or, If the repetitive transmission method is a variable interval repetitive transmission, then within the listening time of the interval synchronization signal block SSB transmission period, the SIB1 PDCCH corresponding to the same SIB1 information will be repeatedly transmitted.

25. A processor-readable storage medium, wherein, The processor-readable storage medium stores a program for causing the processor to execute the coverage enhancement method for the physical downlink control channel of system information block 1 as described in any one of claims 1 to 7 or the coverage enhancement method for the physical downlink control channel of system information block 1 as described in any one of claims 8 to 11.

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