Physical downlink control channel (PDCCH) resource configuration method and apparatus

Abstract

The embodiment of the application discloses a physical downlink control channel (PDCCH) resource configuration method and device. The method comprises the following steps: determining a candidate configuration set of a control resource set (CORESET) #0 corresponding to a PDCCH, the candidate configuration set being a first configuration set or a second configuration set, wherein at least one configuration in the first configuration set is different from that in the second configuration set; and sending first indication information to a terminal device, wherein the first indication information is used to indicate the configuration of the CORESET #0 from the candidate configuration set. The configuration of the control resource set (CORESET) #0 carrying a public channel can be flexibly determined based on a communication scenario, an actual transmission condition and the like, so that the resource configuration is more reasonable, the resource utilization rate is effectively improved, the channel transmission performance is improved, and the reliability of communication transmission is ensured.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method and apparatus for configuring Physical Downlink Control Channel (PDCCH) resources. Background Technology

[0002] Release 18 (R18) studies supporting New Radio (NR) technology on a portion of dedicated spectrum for Long Term Evolution (LTE) systems / Global System for Mobile Communications-Railway (GSM-R). This spectrum primarily serves dedicated services such as power / railway systems in certain countries and regions, including communications, public protection, and disaster relief. Typically, the system bandwidth supported by this spectrum is only 2.8 MHz to 3.6 MHz. Summary of the Invention

[0003] A first aspect of this application provides a method for configuring Physical Downlink Control Channel (PDCCH) resources, the method being executed by a network device, the method comprising:

[0004] Determine a candidate configuration set for the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0005] Send a first indication message to the terminal device, the first indication message being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0006] A second aspect of this application provides a method for configuring Physical Downlink Control Channel (PDCCH) resources, the method being executed by a terminal device, the method comprising:

[0007] Determine a candidate configuration set for the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0008] The system receives first indication information sent by a network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0009] A third aspect of this application provides a Physical Downlink Control Channel (PDCCH) resource configuration apparatus, the apparatus comprising:

[0010] The processing unit is configured to determine a candidate configuration set for the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH, wherein the candidate configuration set is a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0011] The transceiver unit is used to send first indication information to the terminal device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0012] A fourth aspect of this application provides a Physical Downlink Control Channel (PDCCH) resource configuration apparatus, which is applied to a terminal device and includes:

[0013] The processing unit is configured to determine a candidate configuration set for the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH, wherein the candidate configuration set is a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0014] The transceiver unit is used to receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0015] A fifth aspect of this application provides a communication apparatus, the apparatus including a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the apparatus to perform the Physical Downlink Control Channel (PDCCH) resource configuration method described in the first aspect of the application.

[0016] A sixth aspect of this application provides a communication apparatus, the apparatus including a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the apparatus to perform the Physical Downlink Control Channel (PDCCH) resource configuration method described in the second aspect of the application above.

[0017] A seventh aspect of this application provides a communication device including a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to execute the code instructions to cause the device to perform the Physical Downlink Control Channel (PDCCH) resource configuration method described in the first aspect of the application.

[0018] An eighth aspect of this application provides a communication device including a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to execute the code instructions to cause the device to perform the Physical Downlink Control Channel (PDCCH) resource configuration method described in the second aspect of the application.

[0019] A ninth aspect of this application provides a computer-readable storage medium for storing instructions that, when executed, enable the Physical Downlink Control Channel (PDCCH) resource configuration method described in the first aspect of this application to be implemented.

[0020] A tenth aspect of this application provides a computer-readable storage medium for storing instructions that, when executed, enable the Physical Downlink Control Channel (PDCCH) resource configuration method described in the second aspect of this application to be implemented.

[0021] The eleventh aspect of this application provides a computer program that, when run on a computer, causes the computer to execute the Physical Downlink Control Channel (PDCCH) resource configuration method described in the first aspect embodiment.

[0022] The twelfth aspect of this application provides a computer program that, when run on a computer, causes the computer to perform the Physical Downlink Control Channel (PDCCH) resource configuration method described in the second aspect embodiment.

[0023] This application provides a method and apparatus for configuring Physical Downlink Control Channel (PDCCH) resources. By determining a candidate configuration set for the control resource set CORESET#0 corresponding to the PDCCH, where the candidate configuration set is either a first configuration set or a second configuration set, and the first configuration set and the second configuration set contain at least one different configuration, a first indication information is sent to a terminal device. This first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set. This method can flexibly determine the configuration of the control resource set CORESET#0 carrying the common channel based on communication scenarios and actual transmission conditions, making resource configuration more reasonable, effectively improving resource utilization, improving channel transmission performance, and ensuring the reliability of communication transmission.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0026] Figure 1 This application provides a schematic diagram of the architecture of a communication system.

[0027] Figure 2 This is a flowchart illustrating a PDCCH resource configuration method provided in an embodiment of this application;

[0028] Figure 3 This is a flowchart illustrating a PDCCH resource configuration method provided in an embodiment of this application;

[0029] Figure 4 A flowchart illustrating a PDCCH resource configuration method provided in an embodiment of this application;

[0030] Figure 5 A flowchart illustrating a PDCCH resource configuration method provided in an embodiment of this application;

[0031] Figure 6 A flowchart illustrating a PDCCH resource configuration method provided in an embodiment of this application;

[0032] Figure 7 A flowchart illustrating a PDCCH resource configuration method provided in an embodiment of this application;

[0033] Figure 8 A flowchart illustrating a PDCCH resource configuration method provided in an embodiment of this application;

[0034] Figure 9 A flowchart illustrating a PDCCH resource configuration method provided in an embodiment of this application;

[0035] Figure 10 This is a schematic diagram of the structure of a PDCCH resource configuration device provided in an embodiment of this application;

[0036] Figure 11 This is a schematic diagram of the structure of a PDCCH resource configuration device provided in an embodiment of this application;

[0037] Figure 12 A schematic diagram of another PDCCH resource configuration device provided in this application embodiment;

[0038] Figure 13 This is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this application as detailed in the appended claims.

[0040] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a” and “the” as used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0041] It should be understood that although the terms first, second, third, etc., may be used to describe various information in the embodiments of this application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the words "if" and "suppose" as used herein can be interpreted as "when," "when," or "in response to a determination."

[0042] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0043] To better understand the Physical Downlink Control Channel (PDCCH) resource configuration method disclosed in this application, the communication system to which this application is applicable is described below.

[0044] Please see Figure 1 , Figure 1 This application provides a schematic diagram of the architecture of a communication system according to an embodiment. The communication system may include, but is not limited to, a first network device and a terminal device. Figure 1 The number and form of devices shown are for illustrative purposes only and do not constitute a limitation on the embodiments of this application. In actual applications, it may include two or more network devices and two or more terminal devices. Figure 1 The communication system shown is exemplified by a network device 101 and a terminal device 102.

[0045] It should be noted that the technical solutions of this application embodiment can be applied to various communication systems. For example, Long Term Evolution (LTE) systems, fifth-generation mobile communication systems, 5G New Radio systems, or other future new mobile communication systems.

[0046] The network device 101 in this embodiment is a network-side entity used for transmitting or receiving signals. For example, the network device 101 can be an evolved NodeB (eNB), a Transmission Reception Point (TRP), a Next Generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a Wireless Fidelity (WiFi) system. This embodiment does not limit the specific technology or device form used in the network device. The network device provided in this embodiment can be composed of a Central Unit (CU) and a Distributed Unit (DU). The CU can also be called a Control Unit. Using a CU-DU structure allows the protocol layer of a network device, such as a base station, to be separated. Some protocol layer functions are centrally controlled by the CU, while the remaining or all protocol layer functions are distributed in the DU, which is centrally controlled by the CU.

[0047] The terminal device 102 in this embodiment is a user-side entity used to receive or transmit signals, such as a mobile phone. The terminal device can also be called a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., and can also be a RedCap terminal device, an evolved RedCap terminal device, or a non-eRedCap terminal device. Terminal devices can be automobiles with communication capabilities, smart cars, mobile phones, wearable devices, tablets, computers with wireless transceiver capabilities, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminal devices in industrial control, wireless terminal devices in self-driving, wireless terminal devices in remote medical surgery, wireless terminal devices in smart grids, wireless terminal devices in transportation safety, wireless terminal devices in smart cities, wireless terminal devices in smart homes, and so on. The embodiments of this application do not limit the specific technology or device form used in the terminal devices.

[0048] Release 18 (R18) studies support for New Radio (NR) technology on a portion of dedicated spectrum in Long Term Evolution (LTE) systems / Global System for Mobile Communications-Railway (GSM-R). This spectrum primarily serves dedicated services such as power system / railway system communications, public protection, and disaster relief in certain countries and regions. Typically, the system bandwidth supported by this spectrum is only 2.8 MHz to 3.6 MHz.

[0049] In NR systems, the area where the Physical Downlink Control Channel (PDCCH) can be transmitted is called the Control Resource Set (CORESET). The CORESET comprises multiple Physical Resource Blocks (PRBs) in the frequency domain. CORESET#0 is primarily used to carry the common control channel, and the frequency resources it occupies are indicated by the pdcch-ConfigSIB information field in the Master Information Block (MIB) message. The pdcch-ConfigSIB information field indicates an index in a pre-defined configuration table within the protocol. Based on the configuration table and the index indicated in the MIB message, the terminal device can determine parameters such as the number of resource blocks (RBs) contained in CORESET#0, the number of orthogonal frequency division multiplexing (OFDM) symbols occupied, and the offset relative to the primary synchronization signal (PSS) / secondary synchronization signal (SSS).

[0050] In related technologies, the minimum bandwidth occupied by CORESET#0 in the pre-defined configuration table of the protocol is 24 PRBs, which is greater than the transmission bandwidth in the aforementioned dedicated frequency band. Therefore, it may be necessary to introduce a new configuration table for CORESET#0 to match the transmissions performed in the dedicated frequency band.

[0051] It is understood that the communication system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0052] The physical downlink control channel (PDCCH) resource configuration method and apparatus provided in this application will be described in detail below with reference to the accompanying drawings.

[0053] Please see Figure 2 , Figure 2This is a flowchart illustrating a Physical Downlink Control Channel (PDCCH) resource configuration method provided in an embodiment of this application. It should be noted that the PDCCH resource configuration method in this embodiment is executed by a network device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 2 As shown, the method may include the following steps:

[0054] Step 201: Determine the candidate configuration set of the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0055] In this embodiment of the application, the network device can determine the candidate configuration set of CORESET#0 corresponding to PDCCH, wherein the candidate configuration set is a first configuration set or a second configuration set, and the first configuration set and the second configuration set have at least one different configuration.

[0056] In this embodiment of the application, the first configuration set and the second configuration set contain at least one different configuration, which can refer to any one or more of the following:

[0057] The number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set;

[0058] The first configuration set includes at least one configuration that is different from the second configuration set;

[0059] The first configuration set includes at least one parameter from a configuration item that is different from the second configuration set.

[0060] As an example, both the first configuration set and the second configuration set are presented in tabular form. For instance, the second configuration set can be shown in Table 1 below:

[0061] Table 1 CORESET#0 Configuration Set

[0062]

[0063]

[0064] Similarly, if the first configuration set can also be presented in tabular form, then the first configuration set and the second configuration set contain at least one different configuration, which can refer to one or more of the following:

[0065] The number of rows included in the first configuration set (table) and the second configuration set (table) are different. That is, the number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set (for example, the first configuration set may only include 13 rows of configurations, that is, only 13 indexes correspond to specific configurations, while 3 rows are reserved).

[0066] The first configuration set (table) contains at least one row of configurations that are different from the second configuration set (table), that is, the first configuration set includes at least one configuration that is different from the second configuration set;

[0067] The first configuration set (table) contains at least one row in which at least one parameter value is different from that in the second configuration set (table), that is, the first configuration set includes at least one parameter in a configuration item that is different from that in the second configuration set.

[0068] It is understood that each element in Table 1 exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in Table 1. Therefore, those skilled in the art will understand that the value of each element in Table 1 is an independent embodiment.

[0069] In some implementations, the network device can determine whether the candidate configuration set of the terminal device is a first configuration set or a second configuration set based on the operating frequency bands of the network device and the terminal device.

[0070] Optionally, the network device and the terminal device operate in the first frequency band, and the network device can determine that the candidate configuration set is the first configuration set; or,

[0071] The network device and the terminal device operate in frequencies that do not belong to the first frequency band, and the network device can determine that the candidate configuration set is the second configuration set.

[0072] Optionally, the first frequency band includes any one or more of the following frequency bands: n100; n8; n26; n28.

[0073] It should be noted that n100, n8, 26, and n28 are frequency band numbers defined in the 5G New Radio (NR) system, which can be used to deploy NR systems with limited bandwidth. Among them, the available bandwidth of the n8, n26, and n28 bands is approximately 3MHz, while the available bandwidth of the n100 band is 5.6MHz.

[0074] In some implementations, the network device can determine whether the candidate configuration set is a first configuration set or a second configuration set based on the Synchronization Signal and Physical Broadcast Channel Block (SSB, Physical Broadcast Channel, PBCH) sent to the terminal device.

[0075] Optionally, the entire SSB is sent to the terminal device, allowing the network device to determine that the candidate configuration set is the second configuration set; or...

[0076] If the SSB is not fully sent to the terminal device, the network device can determine that the candidate configuration set is the first configuration set.

[0077] Understandably, network devices can determine whether the actual transmitted SSB is complete, and based on the actual transmission status of the SSB, determine the candidate configuration set for the terminal device.

[0078] In some implementations, after determining the candidate configuration set, the network device can also send a second indication information included in the PBCH to the terminal device. The second indication information is used to indicate whether the candidate configuration set is the first configuration set or the second configuration set.

[0079] Optionally, the second indication information is a free bit in the PBCH; or,

[0080] The second indication information is the information field in the PBCH used to indicate the subcarrier spacing; or...

[0081] The second indication information is the information field in the PBCH used to indicate the offset between SSB and CORESET#0.

[0082] That is, the idle bits in the PBCH can be used to indicate the candidate configuration set, or the information field in the PBCH used to indicate the subcarrier spacing can be reused to indicate the candidate configuration set, or the information field in the PBCH used to indicate the offset between SSB and CORESET#0 can be reused to indicate the candidate configuration set.

[0083] In some implementations, after determining the candidate configuration set, the network device can also send an SSB to the terminal device, and the frequency domain location of the synchronization raster corresponding to the SSB is used by the terminal device to determine the candidate configuration set.

[0084] In other words, after determining the candidate configuration set, the network device can also implicitly indicate the candidate configuration set to be used to the terminal device by the frequency domain location of the synchronization grid corresponding to the SSB.

[0085] Optionally, if the synchronization grid corresponding to the SSB is the synchronization grid in set#1, it can be used to implicitly indicate that the candidate configuration set is the first configuration set;

[0086] If the synchronization grid corresponding to the SSB is the synchronization grid in set#2, it can be used to implicitly indicate that the candidate configuration set is the second configuration set.

[0087] Step 202: Send a first indication message to the terminal device. The first indication message is used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0088] In this embodiment of the application, after determining the candidate configuration set used by the terminal device, the network device can send a first indication information to the terminal device. The first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0089] In some implementations, the first indication information can indicate an index value, and the terminal device can determine the configuration corresponding to the index value from the candidate configuration set based on the index value.

[0090] In summary, by determining the candidate configuration set of the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH, where the candidate configuration set is either a first configuration set or a second configuration set, and the first configuration set and the second configuration set contain at least one different configuration, a first indication information is sent to the terminal device. This first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set. This allows for flexible determination of the configuration of the control resource set CORESET#0 carrying the common channel based on communication scenarios and actual transmission conditions, resulting in more reasonable resource allocation, effectively improving resource utilization, enhancing channel transmission performance, and ensuring the reliability of communication transmission.

[0091] Please see Figure 3 , Figure 3 This is a flowchart illustrating a Physical Downlink Control Channel (PDCCH) resource configuration method provided in an embodiment of this application. It should be noted that the PDCCH resource configuration method in this embodiment is executed by a network device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 3 As shown, the method may include the following steps:

[0092] Step 301: Based on the operating frequency bands of the network device and the terminal device, determine the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0093] In this embodiment, the network device can determine whether the candidate configuration set for CORESET#0 corresponding to the PDCCH of the terminal device is a first configuration set or a second configuration set based on the operating frequency bands of the network device and the terminal device. The candidate configuration set is either the first configuration set or the second configuration set, and the first configuration set and the second configuration set contain at least one different configuration.

[0094] Optionally, the network device and the terminal device operate in the first frequency band, and the network device can determine that the candidate configuration set is the first configuration set; or,

[0095] The network device and the terminal device operate in frequencies that do not belong to the first frequency band, and the network device can determine that the candidate configuration set is the second configuration set.

[0096] Optionally, the first frequency band includes any one or more of the following frequency bands: n100; n8; n26; n28.

[0097] It should be noted that n100, n8, 26, and n28 are frequency band numbers defined in the 5G New Radio (NR) system, which can be used to deploy NR systems with limited bandwidth. Among them, the available bandwidth of the n8, n26, and n28 bands is approximately 3MHz, while the available bandwidth of the n100 band is 5.6MHz.

[0098] As an example, if the network device and the terminal device operate in any one of the frequency bands n100, n8, n26, and n28, the candidate configuration set is determined as the first configuration set; if the network device and the terminal device operate in other frequency bands, the candidate configuration set is determined as the second configuration set.

[0099] As another example, if the network device and the terminal device operate in any one of the frequency bands n8, n26, and n28, the candidate configuration set is determined as the first configuration set; if the network device and the terminal device operate in the other frequency bands, the candidate configuration set is determined as the second configuration set.

[0100] In this embodiment of the application, the first configuration set and the second configuration set contain at least one different configuration, which can refer to any one or more of the following:

[0101] The number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set;

[0102] The first configuration set includes at least one configuration that is different from the second configuration set;

[0103] The first configuration set includes at least one parameter from a configuration item that is different from the second configuration set.

[0104] As an example, both the first configuration set and the second configuration set are presented in tabular form. For instance, the second configuration set could be shown in the following table (consistent with Table 1 above):

[0105] CORESET#0 Configuration Collection

[0106]

[0107] Similarly, if the first configuration set can also be presented in tabular form, then the first configuration set and the second configuration set contain at least one different configuration, which can refer to one or more of the following:

[0108] The number of rows included in the first configuration set (table) and the second configuration set (table) are different. That is, the number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set (for example, the first configuration set may only include 13 rows of configurations, that is, only 13 indexes correspond to specific configurations, while 3 rows are reserved).

[0109] The first configuration set (table) contains at least one row of configurations that are different from the second configuration set (table), that is, the first configuration set includes at least one configuration that is different from the second configuration set;

[0110] The first configuration set (table) contains at least one row in which at least one parameter value is different from that in the second configuration set (table), that is, the first configuration set includes at least one parameter in a configuration item that is different from that in the second configuration set.

[0111] It is understood that each element in the table above exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in the table. Therefore, those skilled in the art will understand that the value of each element in this table is an independent embodiment.

[0112] Step 302: Send first indication information to the terminal device. The first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0113] In this embodiment of the application, after determining the candidate configuration set used by the terminal device, the network device can send a first indication information to the terminal device. The first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0114] In some implementations, the first indication information can indicate an index value, and the terminal device can determine the configuration corresponding to the index value from the candidate configuration set based on the index value.

[0115] In some embodiments, prior to step 302, this application may further include steps 303 and / or 304 (not shown in the figures) to indicate the determined set of candidate configurations to the terminal device:

[0116] Step 303: Send a second indication information included in the PBCH to the terminal device, the second indication information being used to indicate the candidate configuration set.

[0117] In some implementations, after determining the candidate configuration set, the network device can also send a second indication information included in the PBCH to the terminal device. The second indication information is used to indicate whether the candidate configuration set is the first configuration set or the second configuration set.

[0118] Optionally, the second indication information is a free bit in the PBCH; or,

[0119] The second indication information is the information field in the PBCH used to indicate the subcarrier spacing; or...

[0120] The second indication information is the information field in the PBCH used to indicate the offset between SSB and CORESET#0.

[0121] That is, the idle bits in the PBCH can be used to indicate the candidate configuration set, or the information field in the PBCH used to indicate the subcarrier spacing can be reused to indicate the candidate configuration set, or the information field in the PBCH used to indicate the offset between SSB and CORESET#0 can be reused to indicate the candidate configuration set.

[0122] Step 304: Send an SSB to the terminal device. The frequency domain location of the synchronization grid corresponding to the SSB is used by the terminal device to determine the candidate configuration set.

[0123] In some implementations, after determining the candidate configuration set, the network device can also send an SSB to the terminal device, and the frequency domain location of the synchronization raster corresponding to the SSB is used by the terminal device to determine the candidate configuration set.

[0124] In other words, after determining the candidate configuration set, the network device can also implicitly indicate the candidate configuration set to be used to the terminal device by the frequency domain location of the synchronization grid corresponding to the SSB.

[0125] As an example, optionally, if the synchronization grid corresponding to the SSB is the synchronization grid in set#1, it can be used to implicitly indicate that the candidate configuration set is the first configuration set;

[0126] If the synchronization grid corresponding to the SSB is the synchronization grid in set#2, it can be used to implicitly indicate that the candidate configuration set is the second configuration set.

[0127] In summary, by determining the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device based on the operating frequency bands of the network device and the terminal device, and the candidate configuration set being either a first configuration set or a second configuration set, wherein at least one configuration differs from the first configuration set and the second configuration set, a first indication information is sent to the terminal device. This first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set. This allows for flexible determination of the configuration of the control resource set CORESET#0 carrying the common channel based on communication scenarios and actual transmission conditions, resulting in more reasonable resource allocation, effectively improving resource utilization, enhancing channel transmission performance, and ensuring the reliability of communication transmission.

[0128] Please see Figure 4 , Figure 4 This is a flowchart illustrating a Physical Downlink Control Channel (PDCCH) resource configuration method provided in an embodiment of this application. It should be noted that the PDCCH resource configuration method in this embodiment is executed by a network device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 4 As shown, the method may include the following steps:

[0129] Step 401: Based on the SSB sent to the terminal device, determine the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0130] In this embodiment of the application, the network device can determine whether the candidate configuration set is a first configuration set or a second configuration set based on the SSB sent to the terminal device.

[0131] Optionally, the entire SSB is sent to the terminal device, allowing the network device to determine that the candidate configuration set is the second configuration set; or...

[0132] If the SSB is not fully sent to the terminal device, the network device can determine that the candidate configuration set is the first configuration set.

[0133] Understandably, network devices can determine whether the actual transmitted SSB is complete, and based on the actual transmission status of the SSB, determine the candidate configuration set for the terminal device.

[0134] In this embodiment of the application, the first configuration set and the second configuration set contain at least one different configuration, which can refer to any one or more of the following:

[0135] The number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set;

[0136] The first configuration set includes at least one configuration that is different from the second configuration set;

[0137] The first configuration set includes at least one parameter from a configuration item that is different from the second configuration set.

[0138] As an example, both the first configuration set and the second configuration set are presented in tabular form. For instance, the second configuration set may be shown as a table in any of the foregoing embodiments.

[0139] Similarly, if the first configuration set can also be presented in tabular form, then the first configuration set and the second configuration set contain at least one different configuration, which can refer to one or more of the following:

[0140] The number of rows included in the first configuration set (table) and the second configuration set (table) are different. That is, the number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set (for example, the first configuration set may only include 13 rows of configurations, that is, only 13 indexes correspond to specific configurations, while 3 rows are reserved).

[0141] The first configuration set (table) contains at least one row of configurations that are different from the second configuration set (table), that is, the first configuration set includes at least one configuration that is different from the second configuration set;

[0142] The first configuration set (table) contains at least one row in which at least one parameter value is different from that in the second configuration set (table), that is, the first configuration set includes at least one parameter in a configuration item that is different from that in the second configuration set.

[0143] It is understood that each element in the aforementioned table exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in the aforementioned table. Therefore, those skilled in the art will understand that the value of each element in this table is an independent embodiment.

[0144] Step 402: Send first indication information to the terminal device. The first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0145] In this embodiment of the application, after determining the candidate configuration set used by the terminal device, the network device can send a first indication information to the terminal device. The first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0146] In some implementations, the first indication information can indicate an index value, and the terminal device can determine the configuration corresponding to the index value from the candidate configuration set based on the index value.

[0147] In some embodiments, prior to step 402, this application may further include steps 403 and / or 404 (not shown in the figures) to indicate the determined set of candidate configurations to the terminal device:

[0148] Step 403: Send a second indication information included in the PBCH to the terminal device. The second indication information is used to indicate the candidate configuration set.

[0149] In some implementations, after determining the candidate configuration set, the network device can also send a second indication information included in the PBCH to the terminal device. The second indication information is used to indicate whether the candidate configuration set is the first configuration set or the second configuration set.

[0150] Optionally, the second indication information is a free bit in the PBCH; or,

[0151] The second indication information is the information field in the PBCH used to indicate the subcarrier spacing; or...

[0152] The second indication information is the information field in the PBCH used to indicate the offset between SSB and CORESET#0.

[0153] That is, the idle bits in the PBCH can be used to indicate the candidate configuration set, or the information field in the PBCH used to indicate the subcarrier spacing can be reused to indicate the candidate configuration set, or the information field in the PBCH used to indicate the offset between SSB and CORESET#0 can be reused to indicate the candidate configuration set.

[0154] Step 404: Send an SSB to the terminal device. The frequency domain location of the synchronization grid corresponding to the SSB is used by the terminal device to determine the candidate configuration set.

[0155] In some implementations, after determining the candidate configuration set, the network device can also send an SSB to the terminal device, and the frequency domain location of the synchronization raster corresponding to the SSB is used by the terminal device to determine the candidate configuration set.

[0156] In other words, after determining the candidate configuration set, the network device can also implicitly indicate the candidate configuration set to be used to the terminal device by the frequency domain location of the synchronization grid corresponding to the SSB.

[0157] As an example, optionally, if the synchronization grid corresponding to the SSB is the synchronization grid in set#1, it can be used to implicitly indicate that the candidate configuration set is the first configuration set;

[0158] If the synchronization grid corresponding to the SSB is the synchronization grid in set#2, it can be used to implicitly indicate that the candidate configuration set is the second configuration set.

[0159] In summary, by determining the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device based on the SSB sent to the terminal device, and the candidate configuration set being either a first configuration set or a second configuration set, wherein at least one configuration differs between the first configuration set and the second configuration set, a first indication information is sent to the terminal device. This first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set. This allows for flexible determination of the configuration of the control resource set CORESET#0 carrying the common channel based on communication scenarios and actual transmission conditions, resulting in more reasonable resource allocation, effectively improving resource utilization, enhancing channel transmission performance, and ensuring the reliability of communication transmission.

[0160] Please see Figure 5 , Figure 5 This is a flowchart illustrating a Physical Downlink Control Channel (PDCCH) resource configuration method provided in an embodiment of this application. It should be noted that the PDCCH resource configuration method in this embodiment is executed by a terminal device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 5 As shown, the method may include the following steps:

[0161] Step 501: Determine the candidate configuration set of the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0162] In this embodiment of the application, the terminal device can also determine the candidate configuration set of CORESET#0 corresponding to PDCCH, wherein the candidate configuration set is a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0163] In this embodiment of the application, the first configuration set and the second configuration set contain at least one different configuration, which can refer to any one or more of the following:

[0164] The number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set;

[0165] The first configuration set includes at least one configuration that is different from the second configuration set;

[0166] The first configuration set includes at least one parameter from a configuration item that is different from the second configuration set.

[0167] As an example, both the first configuration set and the second configuration set are presented in tabular form. For instance, the second configuration set could be shown in the following table:

[0168] CORESET#0 Configuration Collection

[0169]

[0170]

[0171] Similarly, if the first configuration set can also be presented in tabular form, then the first configuration set and the second configuration set contain at least one different configuration, which can refer to one or more of the following:

[0172] The number of rows included in the first configuration set (table) and the second configuration set (table) are different. That is, the number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set (for example, the first configuration set may only include 13 rows of configurations, that is, only 13 indexes correspond to specific configurations, while 3 rows are reserved).

[0173] The first configuration set (table) contains at least one row of configurations that are different from the second configuration set (table), that is, the first configuration set includes at least one configuration that is different from the second configuration set;

[0174] The first configuration set (table) contains at least one row in which at least one parameter value is different from that in the second configuration set (table), that is, the first configuration set includes at least one parameter in a configuration item that is different from that in the second configuration set.

[0175] It is understood that each element in the table above exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in the table. Therefore, those skilled in the art will understand that the value of each element in this table is an independent embodiment.

[0176] In some implementations, the terminal device can determine whether the candidate configuration set of the terminal device is a first configuration set or a second configuration set based on the network device and the operating frequency band of the terminal device.

[0177] Optionally, the network device and the terminal device operate in the first frequency band, and the terminal device can determine that the candidate configuration set is the first configuration set; or,

[0178] The network device and the terminal device operate in frequencies that do not belong to the first frequency band, and the terminal device is able to determine that the candidate configuration set is the second configuration set.

[0179] Optionally, the first frequency band includes any one or more of the following frequency bands: n100; n8; n26; n28.

[0180] It should be noted that n100, n8, 26, and n28 are frequency band numbers defined in the 5G New Radio (NR) system, which can be used to deploy NR systems with limited bandwidth. Among them, the available bandwidth of the n8, n26, and n28 bands is approximately 3MHz, while the available bandwidth of the n100 band is 5.6MHz.

[0181] In some implementations, the terminal device can determine whether the candidate configuration set is a first configuration set or a second configuration set based on the synchronization signal block (SSB) sent to the terminal device by the network device.

[0182] Optionally, the SSB is a complete SSB sent to the terminal device, enabling the terminal device to determine that the candidate configuration set is the second configuration set; or,

[0183] The SSB is an SSB that was not fully sent to the terminal device, and the terminal device is able to determine that the candidate configuration set is the first configuration set.

[0184] Understandably, the terminal device can know whether the actual transmitted SSB is complete, and based on the actual transmission status of the SSB, determine the candidate configuration set of the terminal device.

[0185] In some implementations, the terminal device can determine the candidate configuration set based on second indication information sent by the network device and included in the PBCH, the second indication information being used to indicate whether the candidate configuration set is a first configuration set or a second configuration set.

[0186] Optionally, the second indication information is a free bit in the PBCH; or,

[0187] The second indication information is the information field in the PBCH used to indicate the subcarrier spacing; or...

[0188] The second indication information is the information field in the PBCH used to indicate the offset between SSB and CORESET#0.

[0189] In other words, the network device can use the idle bits in the PBCH to indicate the candidate configuration set to the terminal device, or it can reuse the information field in the PBCH used to indicate the subcarrier spacing to indicate the candidate configuration set to the terminal device, or it can reuse the information field in the PBCH used to indicate the offset between SSB and CORESET#0 to indicate the candidate configuration set to the terminal device.

[0190] In some implementations, the terminal device can determine the candidate configuration set based on the frequency domain location of the synchronization grid corresponding to the SSB sent by the network device.

[0191] In other words, after determining the candidate configuration set, the network device can also implicitly indicate the candidate configuration set to be used to the terminal device by the frequency domain location of the synchronization grid corresponding to the SSB.

[0192] Optionally, if the synchronization grid corresponding to the SSB is the synchronization grid in set#1, it can be used to implicitly indicate that the candidate configuration set is the first configuration set;

[0193] If the synchronization grid corresponding to the SSB is the synchronization grid in set#2, it can be used to implicitly indicate that the candidate configuration set is the second configuration set.

[0194] Step 502: Receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0195] In this embodiment of the application, the terminal device is able to receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0196] In some implementations, the first indication information can indicate an index value, and the terminal device can determine the configuration corresponding to the index value from the candidate configuration set based on the index value.

[0197] In summary, by determining the candidate configuration set of the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH, where the candidate configuration set is either a first configuration set or a second configuration set, and the first configuration set and the second configuration set contain at least one different configuration, and by receiving first indication information sent by the network device, which is used to indicate the configuration of CORESET#0 from the candidate configuration set, the configuration of the control resource set CORESET#0 carrying the common channel can be flexibly determined based on the communication scenario and actual transmission conditions. This makes the resource configuration more reasonable, effectively improves resource utilization, enhances channel transmission performance, and ensures the reliability of communication transmission.

[0198] Please see Figure 6 , Figure 6 This is a flowchart illustrating a Physical Downlink Control Channel (PDCCH) resource configuration method provided in an embodiment of this application. It should be noted that the PDCCH resource configuration method in this embodiment is executed by a terminal device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 6 As shown, the method may include the following steps:

[0199] Step 601: Based on the operating frequency bands of the network device and the terminal device, determine the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0200] In this embodiment, the terminal device can determine whether the candidate configuration set for CORESET#0 corresponding to the PDCCH of the terminal device is a first configuration set or a second configuration set based on the operating frequency band of the network device and the terminal device. The first configuration set and the second configuration set contain at least one different configuration.

[0201] Optionally, if the network device and the terminal device operate in a first frequency band, then the candidate configuration set is determined as the first configuration set; or,

[0202] The network device and the terminal device operate in a frequency band that does not belong to the first frequency band, so the candidate configuration set is determined to be the second configuration set.

[0203] Optionally, the first frequency band includes any one or more of the following frequency bands: n100; n8; n26; n28.

[0204] It should be noted that n100, n8, 26, and n28 are frequency band numbers defined in the 5G New Radio (NR) system, which can be used to deploy NR systems with limited bandwidth. Among them, the available bandwidth of the n8, n26, and n28 bands is approximately 3MHz, while the available bandwidth of the n100 band is 5.6MHz.

[0205] As an example, if the network device and the terminal device operate in any one of the frequency bands n100, n8, n26, and n28, the candidate configuration set is determined as the first configuration set; if the network device and the terminal device operate in other frequency bands, the candidate configuration set is determined as the second configuration set.

[0206] As another example, if the network device and the terminal device operate in any one of the frequency bands n8, n26, and n28, the candidate configuration set is determined as the first configuration set; if the network device and the terminal device operate in the other frequency bands, the candidate configuration set is determined as the second configuration set.

[0207] In this embodiment of the application, the first configuration set and the second configuration set contain at least one different configuration, which can refer to any one or more of the following:

[0208] The number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set;

[0209] The first configuration set includes at least one configuration that is different from the second configuration set;

[0210] The first configuration set includes at least one parameter from a configuration item that is different from the second configuration set.

[0211] As an example, both the first configuration set and the second configuration set are presented in tabular form. For instance, the second configuration set may be shown as a table in any of the foregoing embodiments:

[0212] Similarly, if the first configuration set can also be presented in tabular form, then the first configuration set and the second configuration set contain at least one different configuration, which can refer to one or more of the following:

[0213] The number of rows included in the first configuration set (table) and the second configuration set (table) are different. That is, the number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set (for example, the first configuration set may only include 13 rows of configurations, that is, only 13 indexes correspond to specific configurations, while 3 rows are reserved).

[0214] The first configuration set (table) contains at least one row of configurations that are different from the second configuration set (table), that is, the first configuration set includes at least one configuration that is different from the second configuration set;

[0215] The first configuration set (table) contains at least one row in which at least one parameter value is different from that in the second configuration set (table), that is, the first configuration set includes at least one parameter in a configuration item that is different from that in the second configuration set.

[0216] It is understood that each element in the aforementioned table exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in the aforementioned table. Therefore, those skilled in the art will understand that the value of each element in this table is an independent embodiment.

[0217] Step 602: Receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0218] In this embodiment of the application, the terminal device is able to receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0219] In some implementations, the first indication information can indicate an index value, and the terminal device can determine the configuration corresponding to the index value from the candidate configuration set based on the index value.

[0220] In summary, by determining the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device based on the operating frequency bands of the network device and the terminal device, and the candidate configuration set being either a first configuration set or a second configuration set, wherein at least one configuration differs from the first configuration set and the second configuration set, and receiving first indication information sent by the network device, the first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set. This allows for flexible determination of the configuration of the control resource set CORESET#0 carrying the common channel based on communication scenarios and actual transmission conditions, resulting in more reasonable resource configuration, effectively improving resource utilization, enhancing channel transmission performance, and ensuring the reliability of communication transmission.

[0221] Please see Figure 7 , Figure 7 This is a flowchart illustrating a Physical Downlink Control Channel (PDCCH) resource configuration method provided in an embodiment of this application. It should be noted that the PDCCH resource configuration method in this embodiment is executed by a terminal device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 7 As shown, the method may include the following steps:

[0222] Step 701: Based on the SSB sent to the terminal device by the network device, determine the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0223] In this embodiment of the application, the terminal device can determine whether the candidate configuration set is the first configuration set or the second configuration set based on the synchronization signal block (SSB) sent to the terminal device by the network device.

[0224] Optionally, the SSB is a complete SSB sent to the terminal device, enabling the terminal device to determine that the candidate configuration set is the second configuration set; or,

[0225] The SSB is an SSB that was not fully sent to the terminal device, and the terminal device is able to determine that the candidate configuration set is the first configuration set.

[0226] Understandably, the terminal device can know whether the actual transmitted SSB is complete, and based on the actual transmission status of the SSB, determine the candidate configuration set of the terminal device.

[0227] In this embodiment of the application, the first configuration set and the second configuration set contain at least one different configuration, which can refer to any one or more of the following:

[0228] The number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set;

[0229] The first configuration set includes at least one configuration that is different from the second configuration set;

[0230] The first configuration set includes at least one parameter from a configuration item that is different from the second configuration set.

[0231] As an example, both the first configuration set and the second configuration set are presented in tabular form. For instance, the second configuration set may be shown as a table in any of the foregoing embodiments.

[0232] Similarly, if the first configuration set can also be presented in tabular form, then the first configuration set and the second configuration set contain at least one different configuration, which can refer to one or more of the following:

[0233] The number of rows included in the first configuration set (table) and the second configuration set (table) are different. That is, the number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set (for example, the first configuration set may only include 13 rows of configurations, that is, only 13 indexes correspond to specific configurations, while 3 rows are reserved).

[0234] The first configuration set (table) contains at least one row of configurations that are different from the second configuration set (table), that is, the first configuration set includes at least one configuration that is different from the second configuration set;

[0235] The first configuration set (table) contains at least one row in which at least one parameter value is different from that in the second configuration set (table), that is, the first configuration set includes at least one parameter in a configuration item that is different from that in the second configuration set.

[0236] It is understood that each element in the aforementioned table exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in the aforementioned table. Therefore, those skilled in the art will understand that the value of each element in this table is an independent embodiment.

[0237] Step 702: Receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0238] In this embodiment of the application, the terminal device is able to receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0239] In some implementations, the first indication information can indicate an index value, and the terminal device can determine the configuration corresponding to the index value from the candidate configuration set based on the index value.

[0240] In summary, by determining the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device based on the operating frequency bands of the network device and the terminal device, and the candidate configuration set being either a first configuration set or a second configuration set, wherein at least one configuration differs from the first configuration set and the second configuration set, and receiving first indication information sent by the network device, the first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set. This allows for flexible determination of the configuration of the control resource set CORESET#0 carrying the common channel based on communication scenarios and actual transmission conditions, resulting in more reasonable resource configuration, effectively improving resource utilization, enhancing channel transmission performance, and ensuring the reliability of communication transmission.

[0241] Please see Figure 8 , Figure 8 This is a flowchart illustrating a Physical Downlink Control Channel (PDCCH) resource configuration method provided in an embodiment of this application. It should be noted that the PDCCH resource configuration method in this embodiment is executed by a terminal device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 8 As shown, the method may include the following steps:

[0242] Step 801: Receive second indication information included in the PBCH sent by the network device.

[0243] Step 802: Based on the second instruction information, determine the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0244] In this embodiment, the terminal device can receive second indication information included in the PBCH sent by the network device. This second indication information indicates that the terminal device's candidate configuration set is a first configuration set, or that the terminal device's candidate configuration set is a second configuration set. The terminal device can determine whether the candidate configuration set is the first or the second configuration set based on the second indication information.

[0245] It is understood that this second indication information is sent by the network device after it has determined the set of candidate configurations.

[0246] Optionally, the second indication information is a free bit in the PBCH; or,

[0247] The second indication information is the information field in the PBCH used to indicate the subcarrier spacing; or...

[0248] The second indication information is the information field in the PBCH used to indicate the offset between SSB and CORESET#0.

[0249] In other words, the network device can use the idle bits in the PBCH to indicate the candidate configuration set to the terminal device, or it can reuse the information field in the PBCH used to indicate the subcarrier spacing to indicate the candidate configuration set to the terminal device, or it can reuse the information field in the PBCH used to indicate the offset between SSB and CORESET#0 to indicate the candidate configuration set to the terminal device.

[0250] In this embodiment of the application, the first configuration set and the second configuration set contain at least one different configuration, which can refer to any one or more of the following:

[0251] The number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set;

[0252] The first configuration set includes at least one configuration that is different from the second configuration set;

[0253] The first configuration set includes at least one parameter from a configuration item that is different from the second configuration set.

[0254] As an example, both the first configuration set and the second configuration set are presented in tabular form. For instance, the second configuration set may be shown as a table in any of the foregoing embodiments.

[0255] Similarly, if the first configuration set can also be presented in tabular form, then the first configuration set and the second configuration set contain at least one different configuration, which can refer to one or more of the following:

[0256] The number of rows included in the first configuration set (table) and the second configuration set (table) are different. That is, the number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set (for example, the first configuration set may only include 13 rows of configurations, that is, only 13 indexes correspond to specific configurations, while 3 rows are reserved).

[0257] The first configuration set (table) contains at least one row of configurations that are different from the second configuration set (table), that is, the first configuration set includes at least one configuration that is different from the second configuration set;

[0258] The first configuration set (table) contains at least one row in which at least one parameter value is different from that in the second configuration set (table), that is, the first configuration set includes at least one parameter in a configuration item that is different from that in the second configuration set.

[0259] It is understood that each element in the aforementioned table exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in the aforementioned table. Therefore, those skilled in the art will understand that the value of each element in this table is an independent embodiment.

[0260] Step 803: Receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0261] In this embodiment of the application, the terminal device is able to receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0262] In some implementations, the first indication information can indicate an index value, and the terminal device can determine the configuration corresponding to the index value from the candidate configuration set based on the index value.

[0263] In summary, by receiving the second indication information included in the PBCH sent by the network device, and determining the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device based on the second indication information, and receiving the first indication information sent by the network device, which is used to indicate the configuration of CORESET#0 from the candidate configuration set, the configuration of the control resource set CORESET#0 carrying the common channel can be flexibly determined based on the communication scenario and actual transmission conditions, making the resource configuration more reasonable, effectively improving resource utilization, improving channel transmission performance, and ensuring the reliability of communication transmission.

[0264] Please see Figure 9 , Figure 9 This is a flowchart illustrating a Physical Downlink Control Channel (PDCCH) resource configuration method provided in an embodiment of this application. It should be noted that the PDCCH resource configuration method in this embodiment is executed by a terminal device. This method can be executed independently or in conjunction with any other embodiment of this application. Figure 9 As shown, the method may include the following steps:

[0265] Step 901: Receive the synchronization signal block SSB sent by the network device.

[0266] Step 902: Based on the frequency domain location of the synchronization grid corresponding to the SSB, determine the candidate configuration set of CORESET#0 corresponding to the PDCCH of the terminal device. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set.

[0267] In this embodiment of the application, the terminal device can determine the candidate configuration set based on the frequency domain location of the synchronization grid corresponding to the SSB sent by the network device.

[0268] In other words, after determining the candidate configuration set, the network device can also implicitly indicate the candidate configuration set to be used to the terminal device by the frequency domain location of the synchronization grid corresponding to the SSB.

[0269] As an example, optionally, if the synchronization grid corresponding to the SSB is the synchronization grid in set#1, it can be used to implicitly indicate that the candidate configuration set is the first configuration set;

[0270] If the synchronization grid corresponding to the SSB is the synchronization grid in set#2, it can be used to implicitly indicate that the candidate configuration set is the second configuration set.

[0271] In this embodiment of the application, the first configuration set and the second configuration set contain at least one different configuration, which can refer to any one or more of the following:

[0272] The number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set;

[0273] The first configuration set includes at least one configuration that is different from the second configuration set;

[0274] The first configuration set includes at least one parameter from a configuration item that is different from the second configuration set.

[0275] As an example, both the first configuration set and the second configuration set are presented in tabular form. For instance, the second configuration set may be shown as a table in any of the foregoing embodiments.

[0276] Similarly, if the first configuration set can also be presented in tabular form, then the first configuration set and the second configuration set contain at least one different configuration, which can refer to one or more of the following:

[0277] The number of rows included in the first configuration set (table) and the second configuration set (table) are different. That is, the number of configurations included in the first configuration set is different from the number of configurations included in the second configuration set (for example, the first configuration set may only include 13 rows of configurations, that is, only 13 indexes correspond to specific configurations, while 3 rows are reserved).

[0278] The first configuration set (table) contains at least one row of configurations that are different from the second configuration set (table), that is, the first configuration set includes at least one configuration that is different from the second configuration set;

[0279] The first configuration set (table) contains at least one row in which at least one parameter value is different from that in the second configuration set (table), that is, the first configuration set includes at least one parameter in a configuration item that is different from that in the second configuration set.

[0280] It is understood that each element in the aforementioned table exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in the aforementioned table. Therefore, those skilled in the art will understand that the value of each element in this table is an independent embodiment.

[0281] Step 903: Receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0282] In this embodiment of the application, the terminal device is able to receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0283] In some implementations, the first indication information can indicate an index value, and the terminal device can determine the configuration corresponding to the index value from the candidate configuration set based on the index value.

[0284] In summary, by receiving the synchronization signal block (SSB) sent by the network device, and determining the candidate configuration set based on the frequency domain position of the synchronization grid corresponding to the SSB, and receiving the first indication information sent by the network device, which is used to indicate the configuration of CORESET#0 from the candidate configuration set, the configuration of the control resource set CORESET#0 carrying the common channel can be flexibly determined based on the communication scenario and actual transmission conditions. This makes the resource configuration more reasonable, effectively improves resource utilization, enhances channel transmission performance, and ensures the reliability of communication transmission.

[0285] Corresponding to the physical downlink control channel (PDCCH) resource configuration methods provided in the above embodiments, this application also provides a physical downlink control channel (PDCCH) resource configuration apparatus. Since the physical downlink control channel (PDCCH) resource configuration apparatus provided in this application corresponds to the methods provided in the above embodiments, the implementation of the physical downlink control channel (PDCCH) resource configuration method is also applicable to the physical downlink control channel (PDCCH) resource configuration apparatus provided in the following embodiments, and will not be described in detail in the following embodiments.

[0286] Please see Figure 10 , Figure 10 This is a schematic diagram of a Physical Downlink Control Channel (PDCCH) resource configuration device provided in an embodiment of this application.

[0287] like Figure 10 As shown, the Physical Downlink Control Channel (PDCCH) resource configuration device 1000 includes: a processing unit 1010 and a transceiver unit 1020, wherein:

[0288] Processing unit 1010 is used to determine a candidate configuration set of control resource set CORESET#0 corresponding to physical downlink control channel PDCCH, wherein the candidate configuration set is a first configuration set or a second configuration set, and the first configuration set and the second configuration set have at least one different configuration;

[0289] The transceiver unit 1020 is used to send first indication information to the terminal device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0290] Optionally, the processing unit 1010 is specifically used for:

[0291] The candidate configuration set is determined based on the operating frequency bands of the network device and the terminal device.

[0292] Optionally, the operating frequency band belongs to the first frequency band, and the candidate configuration set is the first configuration set; or

[0293] The operating frequency band does not belong to the first frequency band, and the candidate configuration set is the second configuration set.

[0294] Optionally, the processing unit 1010 is specifically used for:

[0295] The candidate configuration set is determined based on the synchronization signal block (SSB) sent to the terminal device.

[0296] Optionally, the complete SSB is sent to the terminal device, and the candidate configuration set is the second configuration set;

[0297] The SSB was not fully sent to the terminal device, and the candidate configuration set is the first configuration set.

[0298] Optionally, the transceiver unit 1020 is also used for:

[0299] Send the terminal device a second indication message included in the Physical Broadcast Channel (PBCH);

[0300] The second indication information is used to indicate that the candidate configuration set is the first configuration set, or the second indication information is used to indicate that the candidate configuration set is the second configuration set.

[0301] Optionally, the second indication information is a free bit in the PBCH; or,

[0302] The second indication information is the information field in the PBCH used to indicate the subcarrier spacing; or...

[0303] The second indication information is the information field in the PBCH used to indicate the offset between the synchronization signal block SSB and CORESET#0.

[0304] Optionally, the transceiver unit 1020 is also used for:

[0305] A synchronization signal block (SSB) is sent to the terminal device. The frequency domain position of the synchronization grid corresponding to the SSB is used by the terminal device to determine the candidate configuration set.

[0306] The Physical Downlink Control Channel (PDCCH) resource configuration device of this embodiment can determine the candidate configuration set of the control resource set CORESET#0 corresponding to the PDCCH. The candidate configuration set is either a first configuration set or a second configuration set. The first configuration set and the second configuration set have at least one different configuration. The device sends first indication information to the terminal device. The first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set. The device can flexibly determine the configuration of the control resource set CORESET#0 carrying the common channel based on the communication scenario and actual transmission conditions. This makes the resource configuration more reasonable, effectively improves the resource utilization rate, improves the channel transmission performance, and ensures the reliability of communication transmission.

[0307] Please see Figure 11 , Figure 11 This is a schematic diagram of a Physical Downlink Control Channel (PDCCH) resource configuration device provided in an embodiment of this application.

[0308] like Figure 11 As shown, the Physical Downlink Control Channel (PDCCH) resource configuration device 1100 includes: a processing unit 1110 and a transceiver unit 1120, wherein:

[0309] Processing unit 1110 is used to determine a candidate configuration set of control resource set CORESET#0 corresponding to physical downlink control channel PDCCH, wherein the candidate configuration set is a first configuration set or a second configuration set, and the first configuration set and the second configuration set have at least one different configuration;

[0310] The transceiver unit 1120 is used to receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set.

[0311] Optionally, the processing unit 1110 is specifically used for:

[0312] The candidate configuration set is determined based on the operating frequency bands of the network device and the terminal device.

[0313] Optionally, the operating frequency band belongs to the first frequency band, and the candidate configuration set is the first configuration set; or,

[0314] The operating frequency band does not belong to the first frequency band, and the candidate configuration set is the second configuration set.

[0315] Optionally, the processing unit 1110 is specifically used for:

[0316] The candidate configuration set is determined based on the synchronization signal block (SSB) sent by the network device to the terminal device.

[0317] Optionally, the SSB, which is sent in its entirety to the terminal device, is used to determine that the candidate configuration set is the second configuration set; or,

[0318] The SSB that was not fully sent to the terminal device is used to determine that the candidate configuration set is the first configuration set.

[0319] Optionally, the processing unit 1110 is specifically used for:

[0320] The network device receives a second indication information included in the Physical Broadcast Channel (PBCH), the second indication information being used to indicate that the candidate configuration set is the first configuration set, or the second indication information being used to indicate that the candidate configuration set is the second configuration set;

[0321] Based on the second instruction information, the candidate configuration set is determined.

[0322] Optionally, the second indication information is a free bit in the PBCH; or,

[0323] The second indication information is the information field in the PBCH used to indicate the subcarrier spacing; or...

[0324] The second indication information is the information field in the PBCH used to indicate the offset between the synchronization signal block SSB and CORESET#0.

[0325] Optionally, the processing unit 1110 is specifically used for:

[0326] Receive the synchronization signal block (SSB) sent by the network device;

[0327] The candidate configuration set is determined based on the frequency domain location of the synchronization grid corresponding to the SSB.

[0328] The Physical Downlink Control Channel (PDCCH) resource configuration device of this embodiment can determine the candidate configuration set of the control resource set CORESET#0 corresponding to the PDCCH. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set. The device receives first indication information sent by the network device. The first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set. The device can flexibly determine the configuration of the control resource set CORESET#0 carrying the common channel based on the communication scenario, actual transmission conditions, etc., so that the resource configuration is more reasonable, the resource utilization rate is effectively improved, the channel transmission performance is improved, and the reliability of communication transmission is guaranteed.

[0329] To implement the above embodiments, this application also proposes a communication device, including: a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform... Figures 2 to 4 The method shown in the embodiment.

[0330] To implement the above embodiments, this application also proposes a communication device, including: a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform... Figures 5 to 9 The method shown in the embodiment.

[0331] To implement the above embodiments, this application also proposes a communication device, including: a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to execute the code instructions to perform... Figures 2 to 4 The method shown in the embodiment.

[0332] To implement the above embodiments, this application also proposes a communication device, including: a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to execute the code instructions to perform... Figures 5 to 9 The method shown in the embodiment.

[0333] Please see Figure 12 , Figure 12 This is a schematic diagram of another physical downlink control channel (PDCCH) resource configuration device provided in this embodiment. The PDCCH resource configuration device 1200 can be a network device, a terminal device, a chip, chip system, or processor that supports the implementation of the above methods in a network device, or a chip, chip system, or processor that supports the implementation of the above methods in a terminal device. This device can be used to implement the methods described in the above method embodiments; please refer to the description in the above method embodiments for details.

[0334] The Physical Downlink Control Channel (PDCCH) resource configuration device 1200 may include one or more processors 1201. The processor 1201 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the PDCCH resource configuration device (e.g., base station, baseband chip, terminal equipment, terminal equipment chip, DU or CU, etc.), execute computer programs, and process the data in the computer programs.

[0335] Optionally, the Physical Downlink Control Channel (PDCCH) resource configuration device 1200 may further include one or more memories 1202, on which a computer program 1203 may be stored. The processor 1201 executes the computer program 1203 to cause the PDCCH resource configuration device 1200 to perform the method described in the above method embodiments. The computer program 1203 may be embedded in the processor 1201, in which case the processor 1201 may be implemented in hardware.

[0336] Optionally, the memory 1202 may also store data. The Physical Downlink Control Channel (PDCCH) resource configuration device 1200 and the memory 1202 can be configured separately or integrated together.

[0337] Optionally, the Physical Downlink Control Channel (PDCCH) resource configuration device 1200 may further include a transceiver 1205 and an antenna 1206. The transceiver 1205, which may be referred to as a transceiver unit, transceiver, or transceiver circuit, is used to implement transceiver functions. The transceiver 1205 may include a receiver and a transmitter. The receiver, which may be referred to as a receiver or receiving circuit, is used to implement the receiving function; the transmitter, which may be referred to as a transmitter or transmitting circuit, is used to implement the transmitting function.

[0338] Optionally, the Physical Downlink Control Channel (PDCCH) resource configuration device 1200 may further include one or more interface circuits 1207. The interface circuits 1207 are used to receive code instructions and transmit them to the processor 1201. The processor 1201 executes the code instructions to cause the Physical Downlink Control Channel (PDCCH) resource configuration device 1200 to perform the method described in the above method embodiments.

[0339] In one implementation, the processor 1201 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receiving and transmitting functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0340] In one implementation, the Physical Downlink Control Channel (PDCCH) resource allocation device 1200 may include circuitry capable of transmitting, receiving, or communicating as described in the aforementioned method embodiments. The processor and transceiver described in this disclosure can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal-oxide-semiconductor (CMOS), n-metal-oxide-semiconductor (NMOS), positive-channel metal-oxide-semiconductor (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon-germanium (SiGe), gallium arsenide (GaAs), etc.

[0341] The physical downlink control channel (PDCCH) resource configuration device described in the above embodiments can be a network device or a terminal device, but the scope of the physical downlink control channel (PDCCH) resource configuration device described in this disclosure is not limited to this, and the structure of the physical downlink control channel (PDCCH) resource configuration device can be unrestricted. Figures 10-12The physical downlink control channel (PDCCH) resource configuration device can be a standalone device or part of a larger device. For example, the physical downlink control channel (PDCCH) resource configuration device can be:

[0342] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0343] (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs;

[0344] (3) ASIC, such as modem;

[0345] (4) Modules that can be embedded in other devices;

[0346] (5) Receivers, terminal equipment, smart terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.

[0347] (6) Others, etc.

[0348] For cases where the Physical Downlink Control Channel (PDCCH) resource configuration device can be a chip or a chip system, please refer to [link / reference]. Figure 13 The diagram shows the structure of the chip. Figure 13 The chip shown includes a processor 1301 and an interface 1302. There can be one or more processors 1301, and multiple interfaces 1302.

[0349] For cases where the chip is used to implement the functions of the network device in the embodiments of this disclosure:

[0350] Interface 1302 is used for code instructions and their transmission to the processor;

[0351] Processor 1301 is used to run code instructions to perform tasks such as Figures 2 to 4 The method.

[0352] Regarding the case where the chip is used to implement the functions of the terminal device in the embodiments of this disclosure:

[0353] Interface 1302 is used for code instructions and their transmission to the processor;

[0354] Processor 1301 is used to run code instructions to perform tasks such as Figures 5 to 9 The method.

[0355] Optionally, the chip also includes a memory 1303, which is used to store necessary computer programs and data.

[0356] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this disclosure.

[0357] This disclosure also provides a communication system, which includes the aforementioned... Figures 10-11 The embodiments include a physical downlink control channel (PDCCH) resource configuration device as a network device and a physical downlink control channel (PDCCH) resource configuration device as a terminal device; alternatively, the system includes the aforementioned... Figure 12 The embodiments include a physical downlink control channel (PDCCH) resource configuration device as a terminal device and a physical downlink control channel (PDCCH) resource configuration device as a network device.

[0358] This disclosure also provides a readable storage medium having instructions stored thereon that, when executed by a computer, implement the functions of any of the above method embodiments.

[0359] This disclosure also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0360] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer programs. When a computer program is loaded and executed on a computer, it generates, in whole or in part, the flow or function according to the embodiments of this disclosure. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, a computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0361] Those skilled in the art will understand that the various numerical designations such as "first," "second," etc., used in this disclosure are merely for the convenience of description and are not intended to limit the scope of the embodiments of this disclosure, nor do they indicate the order of events.

[0362] At least one of the features described in this disclosure can also be described as one or more, and multiple features can be two, three, four or more, and this disclosure does not impose any limitations. In the embodiments of this disclosure, for a technical feature, the technical features in that technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no sequential order or size order among the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0363] The correspondences shown in the tables of this disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values; this disclosure is not limiting. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, the correspondences shown in some rows of the tables in this disclosure may not be configured. Furthermore, appropriate modifications and adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the headers of the above tables can also use other names that the communication device can understand, and the values ​​or representations of the parameters can also be other values ​​or representations that the communication device can understand. In the implementation of the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables, etc.

[0364] The predefined terms in this disclosure can be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0365] 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.

[0366] Those skilled in the art will 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.

[0367] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the embodiments of this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0368] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for configuring Physical Downlink Control Channel (PDCCH) resources, characterized in that, The method is performed by a network device, and the method includes: Determine a candidate configuration set for the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set. Send a first indication message to the terminal device, the first indication message being used to indicate the configuration of CORESET#0 from the candidate configuration set; A synchronization signal block (SSB) is sent to the terminal device, and the frequency domain position of the synchronization grid corresponding to the SSB is used by the terminal device to determine the candidate configuration set.

2. The method according to claim 1, characterized in that, The process of determining the candidate configuration set for CORESET#0 corresponding to PDCCH includes: The candidate configuration set is determined based on the operating frequency bands of the network device and the terminal device.

3. The method according to claim 2, characterized in that, The operating frequency band belongs to the first frequency band, and the candidate configuration set is the first configuration set; or The operating frequency band does not belong to the first frequency band, and the candidate configuration set is the second configuration set.

4. The method according to claim 1, characterized in that, The process of determining the candidate configuration set for CORESET#0 corresponding to PDCCH includes: The candidate configuration set is determined based on the synchronization signal block (SSB) sent to the terminal device.

5. The method according to claim 4, characterized in that, The complete configuration is sent to the SSB of the terminal device, and the candidate configuration set is the second configuration set; or... If the SSB is not completely sent to the terminal device, the candidate configuration set is the first configuration set.

6. The method according to any one of claims 1-5, characterized in that, The method further includes: Send the second indication information, which is included in the Physical Broadcast Channel (PBCH), to the terminal device; Wherein, the second indication information is used to indicate that the candidate configuration set is the first configuration set, or the second indication information is used to indicate that the candidate configuration set is the second configuration set.

7. The method according to claim 6, characterized in that, The second indication information is the free bit in the PBCH; or, The second indication information is the information field in the PBCH used to indicate the subcarrier spacing; or, The second indication information is the information field in the PBCH used to indicate the offset between the synchronization signal block SSB and CORESET#0.

8. A method for configuring Physical Downlink Control Channel (PDCCH) resources, characterized in that, The method is executed by a terminal device, and the method includes: Determine a candidate configuration set for the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH. The candidate configuration set is either a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set. Receive first indication information sent by the network device, the first indication information being used to indicate the configuration of CORESET#0 from the candidate configuration set; Receive the synchronization signal block (SSB) sent by the network device; The candidate configuration set is determined based on the frequency domain location of the synchronization grid corresponding to the SSB.

9. The method according to claim 8, characterized in that, The process of determining the candidate configuration set for CORESET#0 corresponding to PDCCH includes: The candidate configuration set is determined based on the operating frequency bands of the network device and the terminal device.

10. The method according to claim 9, characterized in that, The operating frequency band belongs to the first frequency band, and the candidate configuration set is the first configuration set; or... The operating frequency band does not belong to the first frequency band, and the candidate configuration set is the second configuration set.

11. The method according to claim 8, characterized in that, The process of determining the candidate configuration set for CORESET#0 corresponding to PDCCH includes: The candidate configuration set is determined based on the synchronization signal block (SSB) sent by the network device to the terminal device.

12. The method according to claim 11, characterized in that, The SSB, fully transmitted to the terminal device, is used to determine that the candidate configuration set is the second configuration set; or... The SSB that was not fully sent to the terminal device is used to determine that the candidate configuration set is the first configuration set.

13. The method according to claim 8, characterized in that, The process of determining the candidate configuration set for CORESET#0 corresponding to PDCCH includes: The network device receives second indication information included in the Physical Broadcast Channel (PBCH), wherein the second indication information is used to indicate that the candidate configuration set is a first configuration set, or the second indication information is used to indicate that the candidate configuration set is a second configuration set. The candidate configuration set is determined based on the second indication information.

14. The method according to claim 13, characterized in that, The second indication information is the free bit in the PBCH; or, The second indication information is the information field in the PBCH used to indicate the subcarrier spacing; or, The second indication information is the information field in the PBCH used to indicate the offset between the synchronization signal block SSB and CORESET#0.

15. A Physical Downlink Control Channel (PDCCH) resource allocation device, characterized in that, The device includes: The processing unit is configured to determine a candidate configuration set for the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH, wherein the candidate configuration set is a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set. A transceiver unit is configured to send first indication information to a terminal device, wherein the first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set; The transceiver unit is further configured to send a synchronization signal block (SSB) to the terminal device, wherein the frequency domain position of the synchronization grid corresponding to the SSB is used by the terminal device to determine the candidate configuration set.

16. A Physical Downlink Control Channel (PDCCH) resource allocation device, characterized in that, The device includes: The processing unit is configured to determine a candidate configuration set for the control resource set CORESET#0 corresponding to the physical downlink control channel PDCCH, wherein the candidate configuration set is a first configuration set or a second configuration set, and there is at least one different configuration in the first configuration set and the second configuration set. A transceiver unit is configured to receive first indication information sent by a network device, wherein the first indication information is used to indicate the configuration of CORESET#0 from the candidate configuration set; The transceiver unit is also used to receive the synchronization signal block (SSB) sent by the network device; The processing unit is further configured to determine the candidate configuration set based on the frequency domain location of the synchronization grid corresponding to the SSB.

17. A communication device, characterized in that, The device includes a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method as described in any one of claims 1 to 7, or to perform the method as described in any one of claims 8 to 14.

18. A communication device, characterized in that, include: Processor and interface circuitry; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to execute the code instructions to perform the method as described in any one of claims 1 to 7, or to perform the method as described in any one of claims 8 to 14.

19. A computer-readable storage medium for storing instructions that, when executed, cause the method of any one of claims 1 to 7 to be implemented, or cause the method of any one of claims 8 to 14 to be implemented.

20. A communication system, characterized in that, The system includes: A network device for performing the method as described in any one of claims 1 to 7; A terminal device for performing the method as described in any one of claims 8 to 14.

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