Communication method, communication device, communication system, storage medium and program product

Abstract

Provided in the present disclosure are a communication method, a communication device, a communication system, a storage medium and a program product. In the present disclosure, a terminal determines first time-frequency resource configuration information on the basis of a predefined rule or first indication information sent by a network device, the first time-frequency resource configuration information being used for a first terminal to perform CSS detection on the basis of a first time-frequency resource, so as to ensure that the first terminal can effectively determine a time-frequency resource used for CSS detection, such that the first terminal can perform CSS detection on the basis of the first time-frequency resource indicated by the first time-frequency resource configuration information.

Description

Communication methods, communication equipment, communication systems, storage media and software products Technical Field

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

[0002] Low Power Wide Area (LPWA) technology, as a low-power, long-range wireless communication technology suitable for large-scale device connections, can significantly improve the coverage and transmission efficiency of communication networks. By using LPWA technology, stable network connections can be provided over a wider area, especially suitable for remote areas that are difficult to cover with traditional communication technologies, thereby effectively expanding communication coverage and improving network service quality in remote areas. Summary of the Invention

[0003] To ensure that the terminal can effectively determine the time-frequency resources used for Common Search Space (CSS) detection, embodiments of this disclosure propose a communication method, communication device, communication system, storage medium, and program product.

[0004] According to a first aspect of the present disclosure, a communication method is proposed, executed by a first terminal, the method comprising: determining first time-frequency resource configuration information based on predefined rules or first indication information sent by a network device, wherein the first time-frequency resource configuration information is used by the first terminal to perform common search space (CSS) detection based on the first time-frequency resource.

[0005] According to a second aspect of the present disclosure, a communication method is provided, executed by a network device, the method comprising: sending a first indication information or a second indication information to a first terminal; wherein the first indication information is used by the first terminal to determine first time-frequency resource configuration information; the second indication information is used by the first terminal to determine second time-frequency resource configuration information, the second time-frequency resource configuration information being used by the first terminal to determine the first time-frequency resource configuration information based on predefined rules; and the first time-frequency resource configuration information being used by the first terminal to perform CSS detection based on the first time-frequency resource.

[0006] According to a third aspect of the present disclosure, a communication device is provided for performing the communication method as described in the first or second aspect above.

[0007] According to a fourth aspect of the present disclosure, a communication system is proposed, including a first terminal and a network device, wherein the first terminal is configured to implement the communication method as described in the first aspect above, and the network device is configured to implement the communication method as described in the second aspect above.

[0008] According to a fifth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform the communication method as described in the first or second aspect above.

[0009] According to a sixth aspect of the present disclosure, a program product is proposed, including at least one of a program and instructions, wherein when the program and instructions are executed by a communication device, they implement the communication method as described in the first or second aspect above.

[0010] In this embodiment of the disclosure, the network device sends a first indication information to the first terminal so that the first terminal can determine the first time-frequency resource configuration information based on the first indication information. Alternatively, the first terminal determines the first time-frequency resource configuration information based on predefined rules. The first time-frequency resource configuration information is used by the first terminal to perform CSS detection based on the first time-frequency resource, so as to ensure that the first terminal can effectively determine the time-frequency resource used for CSS detection, thereby enabling the first terminal to perform CSS detection based on the first time-frequency resource indicated by the first time-frequency resource configuration information. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0012] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0013] Figure 2A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0014] Figure 2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0015] Figure 3 is a schematic diagram illustrating the relationship between a first time-frequency resource and a second time-frequency resource according to an embodiment of the present disclosure.

[0016] Figure 4A is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0017] Figure 4B is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0018] Figure 5A is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0019] Figure 5B is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0020] Figure 6A is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0021] Figure 6B is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0022] Figure 7A is a schematic diagram of the structure of the first terminal proposed in an embodiment of this disclosure.

[0023] Figure 7B is a schematic diagram of the structure of the network device proposed in an embodiment of this disclosure.

[0024] Figure 8A is a schematic diagram of the structure of the communication device 8100 proposed in an embodiment of this disclosure.

[0025] Figure 8B is a schematic diagram of the structure of chip 8200 proposed in an embodiment of this disclosure. Detailed Implementation

[0026] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.

[0027] In a first aspect, embodiments of this disclosure propose a communication method executed by a first terminal. The method includes: determining first time-frequency resource configuration information based on predefined rules or first indication information sent by a network device. The first time-frequency resource configuration information is used by the first terminal to perform Common Search Space (CSS) detection based on the first time-frequency resource.

[0028] In the above embodiments, the first time-frequency resource configuration information is determined by the terminal based on the first indication information sent by the predefined rules or network device. The first time-frequency resource configuration information is used by the first terminal to perform CSS detection based on the first time-frequency resource, so as to ensure that the first terminal can effectively determine the time-frequency resource used for CSS detection, thereby enabling the first terminal to perform CSS detection based on the first time-frequency resource indicated by the first time-frequency resource configuration information.

[0029] In conjunction with some embodiments of the first aspect, in some embodiments, based on the first indication information sent by the network device, the method further includes: receiving a first signaling sent by the network device, wherein the first signaling includes the first indication information; wherein the first signaling is at least one of a Master Information Block (MIB), a System Information Block (SIB), and a dedicated signaling of the first terminal.

[0030] In the above embodiments, by using the first signaling as the carrier of the first indication information, the first signaling can be reused, thereby improving the signaling utilization rate of the first signaling. Furthermore, providing multiple optional first signaling options allows the first indication information to be carried through various types of first signaling, improving the flexibility and diversity of the transmission method of the first indication information.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, the first indication information is further used by the second terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

[0032] In the above embodiments, the first indication information is provided for the use of the second terminal, so that the second terminal can determine a second time-frequency resource that is different from the first time-frequency resource based on the same indication information received by the first terminal. The second time-frequency resource can then be used by the second terminal for CSS detection, thereby ensuring that different terminals can determine the time-frequency resource that is suitable for them based on the same first indication information, so as to ensure that both the first terminal and the second terminal can achieve effective CSS detection in the subsequent process.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the first time-frequency resource configuration information is determined based on predefined rules. The method further includes: receiving second indication information sent by the network device, the second indication information being used by the first terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information being used by the first terminal to determine the first time-frequency resource configuration information based on predefined rules.

[0034] In the above embodiments, when the first terminal determines the first time-frequency resource configuration information based on predefined rules, the network device provides the first terminal with second indication information to ensure that the first terminal can determine the second time-frequency resource configuration information based on the second indication information, thereby determining the first time-frequency resource configuration information based on the second time-frequency resource configuration information.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, receiving the second indication information sent by the network device includes: receiving a second signaling sent by the network device, wherein the second signaling includes the second indication information; wherein the second signaling is at least one of MIB, SIB, and dedicated signaling of the first terminal.

[0036] In the above embodiments, by using the second signaling as the carrier of the second indication information, the second signaling can be reused, thereby improving the signaling utilization rate of the second signaling. Furthermore, providing multiple optional second signaling methods allows the second indication information to be carried through various types of second signaling, improving the flexibility and diversity of the transmission methods for the second indication information.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the second indication information is further used by the second terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

[0038] In the above embodiments, the second indication information is provided for the use of the second terminal, so that the second terminal can determine a second time-frequency resource that is different from the first time-frequency resource based on the second indication information used by the terminal to determine the first time-frequency resource. The second time-frequency resource can then be used by the second terminal to perform CSS detection, thereby ensuring that different terminals can determine the time-frequency resource that is suitable for them based on the same second indication information, so as to ensure that both the first terminal and the second terminal can achieve effective CSS detection in the subsequent process.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the predefined rules are used to indicate offset information between the first time-frequency resource and the second time-frequency resource, wherein the second time-frequency resource is the time-frequency resource indicated by the second time-frequency resource configuration information.

[0040] In the above embodiments, one optional use of the predefined rules is to indicate the offset information between the first time-frequency resource and the second time-frequency resource through the predefined rules, so as to ensure that the first terminal can determine the first time-frequency resource configuration information for indicating the first time-frequency resource based on the second time-frequency resource configuration information for indicating the second time-frequency resource.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the offset information is used to indicate time-frequency resource offset and / or frequency domain resource offset.

[0042] In the above embodiments, multiple offset types indicated by the offset information are provided so that time and frequency resources can be determined based on the multiple optional offset types indicated by the offset information, thereby improving the flexibility and diversity of the time and frequency resource determination method.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the first time-frequency resource and the second time-frequency resource are different.

[0044] In the above embodiments, the first time-frequency resource is explicitly indicated to be different from the second time-frequency resource, thereby ensuring that the first terminal and the second terminal can determine the different time-frequency resources that are suitable for them based on the same indication information, so as to ensure that both the first terminal and the second terminal can achieve effective CSS detection in the subsequent process.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the first time-frequency resource and the second time-frequency resource are time-division multiplexing (TDM); or, the first time-frequency resource and the second time-frequency resource are frequency-division multiplexing (FDM); or, the first time-frequency resource and the second time-frequency resource overlap in terms of resources.

[0046] In the above embodiments, multiple optional relationships between the first time-frequency resource and the second time-frequency resource are provided, so that the first time-frequency resource and the second time-frequency resource that meet multiple relationships can both meet the time-frequency resource requirements of the present disclosure embodiments, thereby improving the flexibility and diversity of the time-frequency resource determination results.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the communication coverage of the first terminal is wider than that of the second terminal; and / or, the power consumption of the first terminal is lower than that of the second terminal; and / or, the processing performance of the second terminal is higher than that of the first terminal.

[0048] In the above embodiments, multiple optional relationships between the performance of the first terminal and the second terminal are provided to clarify the first terminal and the second terminal to which the solution provided by the embodiments of this disclosure is applicable, thereby improving the generalization ability of the solution provided by the embodiments of this disclosure.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal.

[0050] In the above embodiments, by specifying that the bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal, it is ensured that the first terminal can perform CSS detection based on the first time-frequency resource that meets its own capability limitations, thereby ensuring the smooth progress of the CSS detection process of the first terminal.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first time-frequency resource configuration information based on predefined rules or first indication information sent by network devices includes: the bandwidth occupied by cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal, and determining the first time-frequency resource configuration information based on predefined rules or first indication information sent by network devices.

[0052] In the above embodiments, by determining the first time-frequency resource configuration information based on predefined rules or the first indication information sent by the network device, the bandwidth occupied by the cell-specific transmission is greater than the maximum receiving bandwidth of the first terminal. This ensures that even when the cell-specific transmission exceeds the receiving capability of the first terminal, the first terminal can still determine the first time-frequency resource configuration information that meets its own capability limitations, thereby ensuring the smooth progress of the CSS detection process of the first terminal.

[0053] Secondly, embodiments of this disclosure propose a communication method executed by a network device. The method includes: sending a first indication information or a second indication information to a first terminal; wherein the first indication information is used by the first terminal to determine first time-frequency resource configuration information; the second indication information is used by the first terminal to determine second time-frequency resource configuration information, the second time-frequency resource configuration information is used by the first terminal to determine the first time-frequency resource configuration information based on predefined rules; and the first time-frequency resource configuration information is used by the first terminal to perform CSS detection based on the first time-frequency resource.

[0054] In the above embodiments, the network device sends a first indication information to the first terminal so that the first terminal can determine the first time-frequency resource configuration information based on the first indication information. Alternatively, the network device sends a second indication information to the terminal so that the first terminal can determine the second time-frequency resource configuration information based on the second indication information. Thus, the first time-frequency resource configuration information is determined based on the second time-frequency resource configuration information and predefined rules. The first time-frequency resource configuration information can be used by the first terminal to perform CSS detection based on the first time-frequency resource, so as to ensure that the first terminal can effectively determine the time-frequency resource used for CSS detection, thereby enabling the first terminal to perform CSS detection based on the first time-frequency resource indicated by the first time-frequency resource configuration information.

[0055] In conjunction with some embodiments of the second aspect, in some embodiments, sending the first indication information to the first terminal includes: sending a first signaling to the first terminal, wherein the first signaling includes the first indication information; wherein the first signaling is at least one of MIB, SIB, and dedicated signaling of the first terminal.

[0056] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending the first indication information to the second terminal, wherein the first indication information is further used by the second terminal to determine second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

[0057] In the above embodiments, by sending first indication information to the second terminal through the network device, the second terminal can determine the second time-frequency resource configuration information that is suitable for itself based on the first indication information. The second time-frequency resource configuration information can be used by the second terminal to perform CSS detection based on the second time-frequency resource, so as to ensure that the second terminal can effectively determine the time-frequency resource used for CSS detection, thereby enabling the second terminal to perform CSS detection based on the second time-frequency resource indicated by the second time-frequency resource configuration information.

[0058] In conjunction with some embodiments of the second aspect, in some embodiments, the predefined rules are used to indicate offset information between the first time-frequency resource and the second time-frequency resource, wherein the second time-frequency resource is the time-frequency resource indicated by the second time-frequency resource configuration information.

[0059] In conjunction with some embodiments of the second aspect, in some embodiments, the offset information is used to indicate time-frequency resource offset and / or frequency domain resource offset.

[0060] In conjunction with some embodiments of the second aspect, in some embodiments, sending the second indication information to the first terminal includes: sending a second signaling to the first terminal, wherein the second signaling includes the second indication information; wherein the second signaling is at least one of MIB, SIB, and dedicated signaling of the first terminal.

[0061] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending the second indication information to the second terminal, the second indication information being used by the second terminal to determine the second time-frequency resource configuration information, the second time-frequency resource configuration information being used by the second terminal to perform CSS detection based on the second time-frequency resource.

[0062] In the above embodiments, by sending second indication information to the second terminal through the network device, the second terminal can determine the second time-frequency resource configuration information that is suitable for itself based on the second indication information. The second time-frequency resource configuration information can be used by the second terminal to perform CSS detection based on the second time-frequency resources, so as to ensure that the second terminal can effectively determine the time-frequency resources used for CSS detection, thereby enabling the second terminal to perform CSS detection based on the second time-frequency resources indicated by the second time-frequency resource configuration information.

[0063] In conjunction with some embodiments of the second aspect, in some embodiments, the first time-frequency resource and the second time-frequency resource are different.

[0064] In conjunction with some embodiments of the second aspect, in some embodiments, the first time-frequency resource and the second time-frequency resource are TDM; or, the first time-frequency resource and the second time-frequency resource are FDM; or, the first time-frequency resource and the second time-frequency resource overlap in terms of resources.

[0065] In conjunction with some embodiments of the second aspect, in some embodiments, the communication coverage of the first terminal is wider than that of the second terminal; and / or, the power consumption of the first terminal is lower than that of the second terminal; and / or, the processing performance of the second terminal is higher than that of the first terminal.

[0066] In conjunction with some embodiments of the second aspect, in some embodiments, the bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal.

[0067] In conjunction with some embodiments of the second aspect, in some embodiments, the first indication information or the second indication information is used by the first terminal to determine the first time-frequency resource configuration information when the bandwidth occupied by the cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal.

[0068] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes any one of the following: transmitting downlink control information (DCI) for the first terminal on a first time-frequency resource; and transmitting DCI for the second terminal on a second time-frequency resource.

[0069] In the above embodiments, by having the network device send DCIs for the first terminal and the second terminal respectively on the first time-frequency resource and the second time-frequency resource, it is ensured that both the first terminal and the second terminal can detect and receive CSS on the time-frequency resource they have determined.

[0070] Thirdly, this disclosure provides a first terminal, including: a processing module configured to determine first time-frequency resource configuration information based on predefined rules or first indication information sent by a network device, wherein the first time-frequency resource configuration information is used by the first terminal to perform public search space (CSS) detection based on the first time-frequency resource.

[0071] Fourthly, this disclosure provides a network device, including: a transceiver module configured to send first indication information or second indication information to a first terminal; wherein the first indication information is used by the first terminal to determine first time-frequency resource configuration information; the second indication information is used by the first terminal to determine second time-frequency resource configuration information, the second time-frequency resource configuration information is used by the first terminal to determine the first time-frequency resource configuration information based on predefined rules; and the first time-frequency resource configuration information is used by the first terminal to perform CSS detection based on the first time-frequency resource.

[0072] Fifthly, embodiments of this disclosure provide a first terminal, comprising: one or more processors; wherein the first terminal is configured to perform the communication method as described in the first aspect above.

[0073] In a sixth aspect, embodiments of this disclosure provide a network device comprising: one or more processors; wherein the network device is configured to perform the communication method as described in the second aspect above.

[0074] In a seventh aspect, embodiments of this disclosure provide a communication device for performing the communication method as described in the first or second aspect above.

[0075] Eighthly, embodiments of this disclosure provide a communication system including a first terminal and a network device, wherein the first terminal is configured to implement the communication method as described in the first aspect above, and the network device is configured to implement the communication method as described in the second aspect above.

[0076] In a ninth aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method as described in the first or second aspect above.

[0077] In a tenth aspect, embodiments of this disclosure provide a program product comprising at least one of a program and instructions, wherein the program and instructions, when executed by a communication device, implement the communication method as described in the first or second aspect above.

[0078] In one aspect, embodiments of this disclosure provide a computer program that, when run on a communication device, causes the communication device to perform the communication method as described in the first or second aspect above.

[0079] In a twelfth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the communication methods described in the first or second aspect above.

[0080] It is understood that the aforementioned first terminal, network device, communication device, communication system, storage medium, program product, computer program, chip or chip system, etc., are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0081] This disclosure provides a communication method, a communication device, a communication system, a storage medium, and a program product. In some embodiments, the terms "communication method" and "information processing method," "communication transmission method," etc., can be used interchangeably, as can the terms "information processing system," "communication system," etc.

[0082] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0083] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0084] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0085] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0086] In the embodiments disclosed herein, "multiple" refers to two or more.

[0087] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0088] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0089] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0090] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0091] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0092] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0093] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0094] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0095] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0096] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0097] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0098] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0099] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0100] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0101] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 includes a first terminal 101 and a network device 102.

[0102] In some embodiments, the first terminal 101 includes, for example, at least one of the following: a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and a wireless terminal device in a smart home, but is not limited thereto.

[0103] In some embodiments, network device 102 includes at least one of access network device and core network device.

[0104] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0105] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0106] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0107] In some embodiments, the core network device may be a single device comprising multiple network elements, or it may be multiple devices or a group of devices, each comprising all or part of the multiple network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0108] In some embodiments, the core network equipment may include a first network element, such as an Access and Mobility Management Function (AMF).

[0109] In some embodiments, the first network element is used for user access management and mobility management, but is not limited thereto.

[0110] In some embodiments, the core network device may include a second network element, such as a Session Management Function (SMF).

[0111] In some embodiments, the second network element is used for session management of the control plane and user plane, but is not limited thereto.

[0112] In some embodiments, the core network device may include a third network element, such as a User Plane Function (UPF).

[0113] In some embodiments, the third network element is used for user plane data forwarding, traffic statistics, Quality of Service (QoS) management, etc., but is not limited to these.

[0114] In some embodiments, the core network device may include a fourth network element, such as a Policy Control Function (PCF).

[0115] In some embodiments, the fourth network element is used to implement user control policy management, including but not limited to QoS control, service access control, etc.

[0116] In some embodiments, the core network device may include a fifth network element, such as a unified data management function (UDM).

[0117] In some embodiments, the fifth network element is used to implement user subscription data management, roaming control, etc., but is not limited to these.

[0118] In some embodiments, the core network device may include a sixth network element, such as an Authentication Server Function (AUSF).

[0119] In some embodiments, the sixth network element is used to implement user authentication, but is not limited thereto.

[0120] In some embodiments, each of the above network elements can be independent of the core network equipment.

[0121] In some embodiments, each of the above network elements may be part of the core network equipment.

[0122] In other possible implementations, the communication system 100 may also include a second terminal.

[0123] In some embodiments, the second terminal includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, VR terminal device, AR terminal device, wireless terminal device in industrial control, wireless terminal device in autonomous driving, wireless terminal device in remote surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0124] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0125] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0126] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0127] In some embodiments, during the 4G and 5G eras, thanks to the vast market space and diverse product types, a great deal of research and standardization work has been carried out on how to support LPWA terminals.

[0128] In some embodiments, LPWA terminals can be used to achieve wide coverage and multi-scenario applications. For example, LPWA terminals can be used as Internet of Things (IoT) devices, monitoring devices, wearable devices, and many other purposes.

[0129] In some embodiments, due to business needs and specific application scenarios, LPWA terminals often possess only weak hardware capabilities in order to control costs and energy consumption. Therefore, there may be significant differences in hardware capabilities between LPWA terminals and high-end terminals.

[0130] In some embodiments, considering the differences in hardware capabilities between LPWA terminals and high-end terminals, LPWA terminals and high-end terminals often cannot share the same technologies. For example, the bandwidth supported by an LPWA terminal may be much smaller than that supported by a high-end terminal, or the processing power of an LPWA terminal may be much weaker than that of a high-end terminal, and so on.

[0131] In some embodiments, due to the limitations of LPWA terminal hardware capabilities, the following two technical approaches can be considered to achieve support for LPWA terminals:

[0132] Technical Approach 1: Design independent protocols for LPWA terminals. For example, define systems independent of high-end terminals for Narrow Band Internet of Things (NB-IoT) devices, enhanced Machine Type Communication (eMTC) devices, etc., to enable independent deployment of LPWA terminals.

[0133] Technical Approach 2: Restrict and simplify existing systems to make them compatible with LPWA terminals. For example, based on existing 5G systems, provide relevant configurations and methods based on the capabilities of Reduced Capability (RedCap) / enhanced Reduced Capability (eRedCap) terminals to ensure that RedCap / eRedCap terminals can smoothly access public 5G networks.

[0134] In the above embodiments, for technical route 1, this approach leads to protocol fragmentation, resulting in additional network deployment costs and limiting the application scenarios and scope of LPWA devices. For technical route 2, due to compatibility considerations, only minor modifications and limitations can be made to the protocol, thus failing to fully leverage the technical characteristics of LPWA terminals and adequately meet their performance requirements.

[0135] In some embodiments, the upper limit of blind decoding (BD) / control channel element (CCE) detection by a terminal on a cell can be defined by a protocol.

[0136] Optionally, for 5G terminals designed based on the 3rd Generation Partnership Project (3GPP) Release 15 (Rel-15) standard (i.e., Rel-15 terminals), their BD / CCE detection capabilities can be defined according to slots. For example, the BD and CCE detection capabilities of a Rel-15 terminal can be determined by the following two tables. See Table 1 and Table 2 below, where Table 1 shows the maximum number of candidate Physical Downlink Control Channels (PDCCHs) that can be monitored per slot in a single serving cell for a downlink (DL) bandwidth part (BWP) with a sub-carrier space (SCS) configuration μ∈{0,1,2,3}.

[0137] Table 1

[0138] Table 2 below shows the maximum number of non-overlapping CCEs in each slot for a DL BWP with SCS configuration μ∈{0,1,2,3} in a single serving cell.

[0139] Table 2

[0140] Optionally, for 5G terminals designed based on the 3GPP Release 16 (Rel-16) standard (i.e., Rel-16 terminals), their BD / CCE detection capabilities can be defined by span. For example, the BD and CCE detection capabilities of a Rel-16 terminal can be determined by the following two tables. See Tables 3 and 4 below, where Table 3 shows the maximum number of candidate PDCCHs that can be monitored per slot within a span in combination (X,Y) for a DL BWP with SCS configuration μ∈{0,1} in a single serving cell.

[0141] Table 3

[0142] Table 4 below shows the maximum number of non-overlapping CCEs in each slot for a DL BWP with SCS configuration μ∈{0,1,2,3} in a single serving cell.

[0143] Table 4

[0144] In some embodiments, for a serving cell, the terminal supports a maximum of 3+1 different downlink control information (DCI) payload sizes. That is, the DCI scrambled with the cell radio network temporary identifier (C-RNTI) can have a maximum of three different sizes, and the DCI scrambled with other radio network temporary identifiers (RNTI) can have a maximum of one additional size.

[0145] In some embodiments, before the terminal enters the connected state, the time-frequency resources for transmitting PDCCH can be obtained in the following ways: configuration #0 (CORESET#0) provided by the Master Information Block (MIB); and configuration (CORESET) for transmitting common DCI provided by System Information Block 1 (SIB1).

[0146] In summary, LPWA terminals and high-end terminals differ significantly in hardware capabilities. To reduce costs, LPWA terminals often support only limited radio frequency bandwidth and base station processing bandwidth, while high-end terminals, in order to achieve better performance, typically support larger system bandwidths.

[0147] Considering that both LPWA terminals and high-end terminals need to go through the same cell search process to access the network and need to receive the same cell-specific downlink control channel, it is necessary to consider the common downlink control channel transmission bandwidth.

[0148] If the downlink control channel transmission bandwidth is reduced to ensure compatibility with LPWA terminals, the performance of high-end terminals will be affected, including transmission performance and capacity. Conversely, if the downlink control channel transmission bandwidth is selected to meet the needs of high-end terminals, it will exceed the hardware processing capabilities of LPWA terminals, resulting in LPWA terminals being unable to access the network or deteriorating downlink transmission performance.

[0149] In view of this, the present disclosure aims to provide a communication method to enable network access for both LPWA terminals and high-end terminals while taking into account their hardware capabilities.

[0150] Figure 2A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2A, the embodiments of the present disclosure relate to a communication method, which includes:

[0151] Step S2101: The network device sends a first instruction message to the first terminal.

[0152] In some embodiments, the network device sends a first instruction message to a first terminal, but is not limited thereto; the network device may also send the first instruction message to a second terminal.

[0153] In some embodiments, the communication coverage of the first terminal is wider than that of the second terminal, and / or the power consumption of the first terminal is lower than that of the second terminal, and / or the processing performance of the second terminal is higher than that of the first terminal. For example, the first terminal can be a terminal supporting LPWA technology, and the second terminal can be a terminal supporting high-speed communication, powerful computing capabilities, low latency, and multiple wireless technologies; that is, the first terminal can be an LPWA terminal, and the second terminal can be a high-end terminal.

[0154] In some embodiments, the name of the first terminal is not limited, and may be, for example, "first type terminal", "first type terminal", etc.

[0155] In some embodiments, the name of the second terminal is not limited, and may be, for example, "second type terminal", "second type terminal", etc.

[0156] In some embodiments, the first indication information is used by the network device to provide relevant information about time-frequency resource configuration.

[0157] In some embodiments, the name of the first indication information is not limited, and it may be, for example, "first information".

[0158] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0159] In some embodiments, the terms “resource,” “resource set,” “resource group,” “precoding,” “precoder,” “weight,” “precoding weight,” “quasi-co-location (QCL),” “transmission configuration indication (TCI) status,” “spatial relation,” “spatial domain filter,” “transmission power,” “phase rotation,” “antenna port,” “antenna port group,” “layer,” “the number of layers,” “rank,” “beam,” “beam width,” “beam angular degree,” “antenna,” “antenna element,” and “panel” can be used interchangeably.

[0160] In some embodiments, the first terminal may receive first instruction information sent by the network device.

[0161] In some embodiments, the second terminal may receive first instruction information sent by the network device.

[0162] In some embodiments, a network device may send a first signaling message to a first terminal, the first signaling message including first indication information; the first terminal may receive the first signaling message sent by the network device to receive the first indication information included in the first signaling message.

[0163] In some embodiments, the first signaling can be at least one of MIB, SIB, and dedicated signaling for the first terminal (UE1-dedicated signaling), but is not limited thereto. The SIB can be SIB1, but is not limited thereto.

[0164] In some embodiments, the network device may send a third signaling message to the second terminal, the third signaling message including first indication information; the second terminal may receive the third signaling message sent by the network device to realize the reception of the first indication information included in the third signaling message.

[0165] In some embodiments, the third signaling can be at least one of MIB, SIB, and UE2-dedicated signaling, but is not limited thereto. SIB can be SIB1, but is not limited thereto.

[0166] Optionally, the first signaling and the third signaling can be the same type of signaling, or the first signaling and the third signaling can be different types of signaling; this disclosure does not limit this.

[0167] In some embodiments, the first terminal and the second terminal may determine the time-frequency resources that are adapted to their own hardware capabilities based on the same first indication information. The specific details of the relevant content will be described in detail below, and will not be repeated here.

[0168] In step S2102, the first terminal determines the first time-frequency resource configuration information based on the first indication information.

[0169] In some embodiments, the first terminal may determine first time-frequency resource configuration information that is compatible with its own hardware capabilities based on first indication information sent by the network device.

[0170] In some embodiments, the first time-frequency resource configuration information is used to provide relevant configurations for the first time-frequency resource, wherein the first time-frequency resource is a time-frequency resource adapted to the hardware capabilities of the first terminal, and the first time-frequency resource can be used by the first terminal to perform CSS detection. That is, the first time-frequency resource configuration information can be used by the first terminal to perform CSS detection based on the first time-frequency resource adapted to its own hardware capabilities.

[0171] In some embodiments, the name of the first time-frequency resource configuration information is not limited, and it may be, for example, "first time-frequency resource configuration", "first configuration information", "first configuration", etc.

[0172] In some embodiments, the first terminal may determine the first time-frequency resource configuration information based on the first indication information if the bandwidth occupied by the cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal.

[0173] In some embodiments, the terms "cell", "component carrier (CC)", "frequency carrier", and "carrier frequency" can be used interchangeably.

[0174] In some embodiments, the bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal, thereby ensuring that the first time-frequency resource configuration information determined by the first terminal based on the first indication information can be adapted to the hardware capabilities of the first terminal.

[0175] In some embodiments, the second terminal may determine second time-frequency resource configuration information that is compatible with its own hardware capabilities based on the first indication information sent by the network device.

[0176] In some embodiments, the second time-frequency resource configuration information is used to provide relevant configurations for the second time-frequency resource, wherein the second time-frequency resource is a time-frequency resource adapted to the hardware capabilities of the second terminal, and the second time-frequency resource can be used by the second terminal to perform CSS detection. That is, the second time-frequency resource configuration information can be used by the second terminal to perform CSS detection based on the second time-frequency resource adapted to its own hardware capabilities.

[0177] In some embodiments, the name of the second time-frequency resource configuration information is not limited, and it may be, for example, "second time-frequency resource configuration", "second configuration information", "second configuration", etc.

[0178] In some embodiments, the bandwidth of the second time-frequency resource is less than or equal to the maximum receiving bandwidth of the second terminal, thereby ensuring that the second time-frequency resource configuration information determined by the second terminal based on the first indication information can be adapted to the hardware capabilities of the second terminal.

[0179] In other words, for both the first terminal and the second terminal that have received the first indication information sent by the network device, the first terminal can determine the first time-frequency resource configuration information adapted to its own hardware capabilities based on the first indication information, and perform CSS detection and reception on the first time-frequency resource indicated by the first time-frequency resource configuration information. Similarly, the second terminal can determine the second time-frequency resource configuration information adapted to its own hardware capabilities based on the same indication information, and perform CSS detection and reception on the second time-frequency resource indicated by the second time-frequency resource configuration information. That is, the solution provided by this embodiment can ensure that the first terminal with weaker hardware capabilities can perform CSS detection and reception based on the first time-frequency resource within its own capability limitations without affecting the second terminal's CSS detection and reception.

[0180] In some embodiments, the first time-frequency resource and the second time-frequency resource are different. That is, the solution provided by the embodiments of this disclosure can ensure that the time-frequency resources for detecting CSS by the first terminal and the second terminal are different.

[0181] Optionally, the first time-frequency resource and the second time-frequency resource are different. For example, the first time-frequency resource is a time-frequency resource within the channel bandwidth (CBW), and the second time-frequency resource is a time-frequency resource within the localized channel bandwidth (L-CBW).

[0182] In some embodiments, the present disclosure does not limit the relationship between the first time-frequency resource and the second time-frequency resource. For example, the first time-frequency resource and the second time-frequency resource may be time-division multiplexing (TDM), or the first time-frequency resource and the second time-frequency resource may be frequency-division multiplexing (FDM), or the first time-frequency resource and the second time-frequency resource may overlap in terms of resources, including but not limited to the overlap of the first time-frequency resource and the second time-frequency resource in terms of time domain resources, the overlap of the first time-frequency resource and the second time-frequency resource in terms of frequency domain resources, and so on.

[0183] In some embodiments, the present disclosure does not limit the number of symbols occupied by the first time-frequency resource and the second time-frequency resource in the time domain. For example, the number of symbols occupied by the first time-frequency resource in the time domain may be the same as the number of symbols occupied by the second time-frequency resource in the time domain, or the number of symbols occupied by the first time-frequency resource in the time domain may be greater than the number of symbols occupied by the second time-frequency resource in the time domain, and so on, but is not limited thereto.

[0184] In step S2103, the network device sends a DCI for the first terminal on the first time-frequency resource.

[0185] In some embodiments, the network device may send a DCI for the first terminal to the first terminal on a first time-frequency resource, but is not limited thereto; the network device may also send a DCI for the second terminal to the second terminal on a second time-frequency resource.

[0186] In some embodiments, when the bandwidth occupied by cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal, the network device may transmit DCI for the first terminal on a first time-frequency resource and transmit DCI for the second terminal on a second time-frequency resource.

[0187] For example, the first time-frequency resource is the time-frequency resource within the CBW, and the second time-frequency resource is the time-frequency resource within the L-CBW. That is, the network device can send DCI for the second terminal within the time-frequency resources within the CBW, and send DCI for the first terminal within the time-frequency resources within the L-CBW.

[0188] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0189] In some embodiments, the first terminal detects and receives CSS on the first time-frequency resource, and the second terminal detects and receives CSS on the second time-frequency resource.

[0190] As mentioned above, the bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal, that is, the bandwidth of the first terminal for detecting CSS is not greater than its maximum supported receiving bandwidth; the bandwidth of the second time-frequency resource is less than or equal to the maximum receiving bandwidth of the second terminal, that is, the bandwidth of the second terminal for detecting CSS is also not greater than its maximum supported receiving bandwidth.

[0191] In some embodiments, detecting received CSS can also be interpreted as detecting received PDCCH.

[0192] In some embodiments, this disclosure does not limit the composition of the CSS. For example, the CSS transmitted in the first time-frequency resource and the CSS transmitted in the second time-frequency resource may have the same configuration, or the CSS transmitted in the first time-frequency resource and the CSS transmitted in the second time-frequency resource may have different configurations.

[0193] In some embodiments, the terms "search space", "search space set", "search space configuration", "search space set configuration", "control resource set (CORESET)", and "CORESET configuration" can be used interchangeably.

[0194] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0195] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0196] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0197] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0198] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0199] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2103. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2101+S2102 may be implemented as an independent embodiment, step S2101+S2103 may be implemented as an independent embodiment, and step S2102+S2103 may be implemented as an independent embodiment, but is not limited thereto.

[0200] In some embodiments, steps S2101 and S2103 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0201] In some embodiments, steps S2102 and S2103 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0202] Figure 2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2B, the embodiments of the present disclosure relate to a communication method, which includes:

[0203] Step S2201: The network device sends a second instruction message to the first terminal.

[0204] In some embodiments, the network device sends a second instruction message to the first terminal, but is not limited thereto; the network device may also send a second instruction message to the second terminal.

[0205] In some embodiments, the name of the second instruction information is not limited, and it may be, for example, "second information" or the like.

[0206] In some embodiments, the communication coverage of the first terminal is wider than that of the second terminal, and / or the power consumption of the first terminal is lower than that of the second terminal, and / or the processing performance of the second terminal is higher than that of the first terminal. For example, the first terminal can be a terminal supporting LPWA technology, and the second terminal can be a terminal supporting high-speed communication, powerful computing capabilities, low latency, and multiple wireless technologies; that is, the first terminal can be an LPWA terminal, and the second terminal can be a high-end terminal.

[0207] In some embodiments, the second indication information is used by the network device to provide relevant information about time-frequency resource configuration.

[0208] In some embodiments, the first terminal may receive second instruction information sent by the network device.

[0209] In some embodiments, the second terminal may receive second instruction information sent by the network device.

[0210] In some embodiments, the network device may send a second signaling message to the first terminal, the second signaling message including second indication information; the first terminal may receive the second signaling message sent by the network device to realize the reception of the second indication information included in the second signaling message.

[0211] In some embodiments, the second signaling may be at least one of MIB, SIB, and UE1-dedicated signaling of the first terminal, but is not limited thereto. SIB may be SIB1, but is not limited thereto.

[0212] In some embodiments, the network device may send a fourth signaling message to the second terminal, the fourth signaling message including second indication information; the second terminal may receive the fourth signaling message sent by the network device to realize the reception of the second indication information included in the fourth signaling message.

[0213] In some embodiments, the fourth signaling can be at least one of MIB, SIB, and UE2-dedicated signaling, but is not limited thereto. SIB can be SIB1, but is not limited thereto.

[0214] Optionally, the second signaling and the fourth signaling can be the same type of signaling, or the second signaling and the fourth signaling can be different types of signaling; this disclosure does not limit this.

[0215] In step S2202, the first terminal determines the second time-frequency resource configuration information based on the second indication information.

[0216] In some embodiments, the second terminal may also determine the second time-frequency resource configuration information based on the second indication information.

[0217] In some embodiments, the second time-frequency resource configuration information is used to provide relevant configurations for the second time-frequency resource, wherein the second time-frequency resource is a time-frequency resource adapted to the hardware capabilities of the second terminal, and the second time-frequency resource can be used by the second terminal to perform CSS detection. That is, the second time-frequency resource configuration information can be used by the second terminal to perform CSS detection based on the second time-frequency resource adapted to its own hardware capabilities.

[0218] In some embodiments, the bandwidth of the second time-frequency resource is less than or equal to the maximum receiving bandwidth of the second terminal, thereby ensuring that the second time-frequency resource configuration information determined by the second terminal based on the second indication information can be adapted to the hardware capabilities of the second terminal.

[0219] In other words, the first terminal and the second terminal can determine the second time-frequency resource configuration information based on the same second indication information. The second time-frequency resource configuration information can be directly used by the second terminal to perform CSS detection based on the second time-frequency resource adapted to its own hardware capabilities. As for the first terminal, the first terminal can further determine the first time-frequency resource adapted to its own hardware capabilities with the assistance of the second time-frequency resource. The relevant content will be detailed below and will not be repeated here.

[0220] In step S2203, the first terminal determines the first time-frequency resource configuration information based on the second time-frequency resource configuration information and predefined rules.

[0221] In some embodiments, the first terminal may determine the first time-frequency resource configuration information based on the second indication information and predefined rules, provided that the bandwidth occupied by the cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal.

[0222] In some embodiments, predefined rules are used to indicate offset information between the first time-frequency resource and the second time-frequency resource, so that the first terminal can determine the first time-frequency resource that is adapted to its own hardware capabilities based on the offset information indicated by the predefined rules and the second time-frequency resource, thereby realizing the determination of the configuration information of the first time-frequency resource used to indicate the first time-frequency resource.

[0223] In some embodiments, offset information may include time-domain offset and / or frequency-domain offset.

[0224] In some embodiments, the first time-frequency resource configuration information is used to provide relevant configurations for the first time-frequency resource, wherein the first time-frequency resource is a time-frequency resource adapted to the hardware capabilities of the first terminal, and the first time-frequency resource can be used by the first terminal to perform CSS detection. That is, the first time-frequency resource configuration information can be used by the first terminal to perform CSS detection based on the first time-frequency resource adapted to its own hardware capabilities.

[0225] In some embodiments, the bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal, thereby ensuring that the first time-frequency resource configuration information determined by the first terminal based on predefined rules can be adapted to the hardware capabilities of the first terminal.

[0226] In other words, for both the first terminal and the second terminal that have received the second indication information sent by the network device, the second terminal can determine the second time-frequency resource configuration information adapted to its own hardware capabilities based on the second indication information, and perform CSS detection and reception on the second time-frequency resource indicated by the second time-frequency resource configuration information. The first terminal can determine the same second time-frequency resource configuration information based on the same indication information, and with the assistance of the second time-frequency resource configuration information, further determine the first time-frequency resource configuration information adapted to its own hardware capabilities according to predefined rules, thereby performing CSS detection and reception on the first time-frequency resource indicated by the first time-frequency resource configuration information. That is, the solution provided by this embodiment can ensure that the first terminal with weaker hardware capabilities can perform CSS detection and reception based on the first time-frequency resource within its own capability limitations without affecting the second terminal's CSS detection and reception.

[0227] In some embodiments, the first time-frequency resource and the second time-frequency resource are different. That is, the solution provided by the embodiments of this disclosure can ensure that the time-frequency resources for detecting CSS by the first terminal and the second terminal are different.

[0228] Optionally, the first time-frequency resource and the second time-frequency resource are different. For example, the first time-frequency resource is a time-frequency resource within the L-CBW, and the second time-frequency resource is a time-frequency resource within the CBW.

[0229] In some embodiments, the present disclosure does not limit the relationship between the first time-frequency resource and the second time-frequency resource. For example, the first time-frequency resource and the second time-frequency resource may be TDM, or the first time-frequency resource and the second time-frequency resource may be FDM, or the first time-frequency resource and the second time-frequency resource may overlap in terms of resources, including but not limited to the overlap of the first time-frequency resource and the second time-frequency resource in terms of time domain resources, the overlap of the first time-frequency resource and the second time-frequency resource in terms of frequency domain resources, and so on.

[0230] In some embodiments, the present disclosure does not limit the number of symbols occupied by the first time-frequency resource and the second time-frequency resource in the time domain. For example, the number of symbols occupied by the first time-frequency resource in the time domain may be the same as the number of symbols occupied by the second time-frequency resource in the time domain, or the number of symbols occupied by the first time-frequency resource in the time domain may be greater than the number of symbols occupied by the second time-frequency resource in the time domain, and so on, but is not limited thereto.

[0231] In step S2204, the network device sends a DCI for the first terminal on the first time-frequency resource.

[0232] In some embodiments, the network device may send a DCI for the first terminal to the first terminal on a first time-frequency resource, but is not limited thereto; the network device may also send a DCI for the second terminal to the second terminal on a second time-frequency resource.

[0233] In some embodiments, when the bandwidth occupied by cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal, the network device may transmit DCI for the first terminal on a first time-frequency resource and transmit DCI for the second terminal on a second time-frequency resource.

[0234] For example, the first time-frequency resource is the time-frequency resource within the CBW, and the second time-frequency resource is the time-frequency resource within the L-CBW. That is, the network device can send DCI for the second terminal within the time-frequency resources within the CBW, and send DCI for the first terminal within the time-frequency resources within the L-CBW.

[0235] In some embodiments, the first terminal detects and receives CSS on the first time-frequency resource, and the second terminal detects and receives CSS on the second time-frequency resource.

[0236] As mentioned above, the bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal, that is, the bandwidth of the first terminal for detecting CSS is not greater than its maximum supported receiving bandwidth; the bandwidth of the second time-frequency resource is less than or equal to the maximum receiving bandwidth of the second terminal, that is, the bandwidth of the second terminal for detecting CSS is also not greater than its maximum supported receiving bandwidth.

[0237] In some embodiments, detecting received CSS can also be interpreted as detecting received PDCCH.

[0238] In some embodiments, this disclosure does not limit the composition of the CSS. For example, the CSS transmitted in the first time-frequency resource and the CSS transmitted in the second time-frequency resource may have the same configuration, or the CSS transmitted in the first time-frequency resource and the CSS transmitted in the second time-frequency resource may have different configurations.

[0239] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2204. For example, step S2203 may be implemented as a standalone embodiment, step S2201+S2203 may be implemented as a standalone embodiment, step S2202+S2203 may be implemented as a standalone embodiment, and step S2203+S2204 may be implemented as a standalone embodiment, but is not limited thereto.

[0240] In some embodiments, steps S2201, S2202, and S2204 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0241] In some embodiments, the solutions provided in Figures 2A and 2B can also be used in combination. For example, when the first terminal receives both the first instruction information and the second instruction information, it can determine the first time-frequency resource configuration information based on the first instruction information and the second instruction information respectively. If the first time-frequency resource configuration information determined based on the two types of information is consistent, CSS detection can be performed directly based on the first time-frequency resource indicated by the determined first time-frequency resource configuration information. If the first time-frequency resource configuration information determined based on the two types of information is inconsistent, the first terminal can select the first time-frequency resource configuration information to be used according to its own implementation, and then perform CSS detection based on the first time-frequency resource indicated by the selected first time-frequency resource configuration information. Similarly, when the second terminal receives both the first and second instruction information, it can determine the second time-frequency resource configuration information based on the first and second instruction information respectively. If the second time-frequency resource configuration information determined based on the two types of information is consistent, CSS detection can be performed directly based on the second time-frequency resource indicated by the determined second time-frequency resource configuration information. If the second time-frequency resource configuration information determined based on the two types of information is inconsistent, the second terminal can select the second time-frequency resource configuration information to use according to its own implementation, and then perform CSS detection based on the second time-frequency resource indicated by the selected second time-frequency resource configuration information.

[0242] In some embodiments, other alternative implementations may be described before or after the specifications corresponding to Figures 2A and 2B.

[0243] According to the solution provided in this disclosure, when the bandwidth occupied by cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal (such as an LPWA terminal), the first terminal can detect and receive the PDCCH according to its own maximum supported bandwidth. That is, when the bandwidth occupied by cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal, the first terminal can detect and receive CSS according to a predefined bandwidth.

[0244] Correspondingly, from the network side, when the bandwidth occupied by cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal, the base station transmits DCI for the second terminal (such as the high-end terminal) within the time-frequency resources within the CBW, and transmits DCI for the first terminal within the time-frequency resources within the L-CBW. The first terminal detects and receives CSS according to the predefined bandwidth.

[0245] In some embodiments, for a first terminal, it can determine the time-frequency resources for detecting CSS based on predefined rules and / or indication information from the base station. Optionally, the first terminal can determine the time-frequency resources for detecting CSS based on at least one of the following methods:

[0246] Method 1: The first terminal obtains the second time-frequency resource configuration of the CSS based on the common indication information carried by the MIB, SIB1, or UE-dedicated signaling. Based on the second time-frequency resource configuration, it determines the first time-frequency resource configuration information for detecting its CSS according to predefined rules, and detects the CSS within the time-frequency resources determined by the first time-frequency resource configuration information.

[0247] Optionally, the predefined rules include offset information between the first and second time-frequency resources defined in the protocol, including at least one of frequency domain resource offset and time-frequency resource offset.

[0248] It should be noted that the second terminal can determine the second time-frequency resource according to the same instruction information, and detect and receive CSS within the second time-frequency resource. That is, Method 1 does not affect the second terminal's detection and reception of CSS.

[0249] Method 2: The first terminal obtains the first time-frequency resource configuration of CSS based on the common indication information carried by MIB, SIB1 or UE-dedicated signaling, and detects CSS within the time-frequency resources determined by the first time-frequency resource configuration information.

[0250] The indication information indicates the time and frequency resources used to transmit the first terminal CSS.

[0251] It should be noted that the second terminal determines the second time-frequency resource according to the same instruction information and detects and receives the CSS within the second time-frequency resource. That is, Method 2 does not affect the second terminal's detection and reception of the CSS.

[0252] In some embodiments, the time-frequency resources for detecting CSS by the first terminal and the second terminal are different, that is, the first time-frequency resource is different from the second time-frequency resource.

[0253] In some embodiments, the bandwidth of the first terminal detecting CSS is not greater than its maximum supported bandwidth, that is, the bandwidth of the first time-frequency resource is not greater than the maximum supported bandwidth of the first terminal.

[0254] In some embodiments, this disclosure does not limit the relationship between the first time-frequency resource and the second time-frequency resource, such as whether they are TDM or FDM, or whether they overlap in resources.

[0255] In some embodiments, the present disclosure does not limit the composition of CSS. For example, the CSS transmitted in the first time-frequency resource and the CSS transmitted in the second time-frequency resource may have the same configuration, or the CSS transmitted in the first time-frequency resource and the CSS transmitted in the second time-frequency resource may have different configurations.

[0256] In some embodiments, this disclosure does not limit the number of symbols occupied by the first time-frequency resource in the time domain. For example, the number of symbols occupied by the first time-frequency resource in the time domain is the same as the number of symbols occupied by the second time-frequency resource in the time domain; or, the number of symbols occupied by the first time-frequency resource in the time domain is greater than the number of symbols occupied by the second time-frequency resource in the time domain, but is not limited thereto.

[0257] Referring to Figure 3, which is a schematic diagram of the relationship between a first time-frequency resource and a second time-frequency resource according to an embodiment of the present disclosure, as shown in Figure 3, the relationship between the first time-frequency resource and the second time-frequency resource can have multiple possibilities, and the number of symbols occupied by the first time-frequency resource in the time domain and the number of symbols occupied by the second time-frequency resource in the time domain can also have multiple possibilities.

[0258] It should be noted that the examples shown in Figure 3 are merely illustrative and do not constitute a limitation on the embodiments of this disclosure.

[0259] Figure 4A is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4A, the present disclosure relates to a communication method, which includes:

[0260] Step S4101: Obtain the first instruction information.

[0261] The optional implementation of step S4101 can be found in the optional implementation of step S2101 in Figure 2A and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0262] In some embodiments, the first terminal receives first indication information sent by a network device, but is not limited thereto; it may also receive first indication information sent by other entities.

[0263] In some embodiments, the first terminal obtains first instruction information as defined by the protocol.

[0264] In some embodiments, the first terminal obtains first indication information from the upper layer(s).

[0265] In some embodiments, the first terminal performs processing to obtain first instruction information.

[0266] In some embodiments, step S4101 is omitted, and the first terminal autonomously implements the function indicated by the first instruction information, or the above function is default or default.

[0267] Step S4102: Based on the first indication information, determine the first time-frequency resource configuration information.

[0268] The optional implementation of step S4102 can be found in the optional implementation of step S2102 in Figure 2A and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0269] Step S4103: Perform CSS detection based on the first time-frequency resource indicated by the first time-frequency resource configuration information.

[0270] The optional implementation of step S4103 can be found in the optional implementation of step S2103 in Figure 2A and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0271] In some embodiments, the first terminal detects CSS on the first time-frequency resource to receive DCI sent by the network device on the first time-frequency resource, but is not limited thereto, and may also receive DCI sent by other entities on the first time-frequency resource.

[0272] The communication method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4103. For example, step S4101 may be implemented as a standalone embodiment, step S4102 may be implemented as a standalone embodiment, step S4101+S4102 may be implemented as a standalone embodiment, step S4101+S4103 may be implemented as a standalone embodiment, and step S4102+S4103 may be implemented as a standalone embodiment, but is not limited thereto.

[0273] In some embodiments, steps S4101 and S4103 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0274] In some embodiments, steps S4102 and S4103 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0275] Figure 4B is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4B, the present disclosure relates to a communication method, which includes:

[0276] Step S4201: Send the first instruction information.

[0277] The optional implementations of step S4201 can be found in steps S2101 and S2102 in Figure 2A, steps S4101 and S4102 in Figure 4A, and other related parts in the embodiments involved in Figures 2A and 4A, which will not be repeated here.

[0278] In some embodiments, the network device may send the first instruction information to the first terminal, but is not limited thereto. It may also send the first instruction information to other entities, such as the second terminal.

[0279] In some embodiments, the first indication information is used by the first terminal to determine the first time-frequency resource configuration information, and the first time-frequency resource configuration information is used by the first terminal to perform CSS detection based on the first time-frequency resource.

[0280] In some embodiments, the first indication information is further used by the second terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

[0281] Step S4202: Send DCI for the first terminal on the first time-frequency resource.

[0282] The optional implementation of step S4202 can be found in step S2103 of Figure 2A, the optional implementation of step S4103 of Figure 4A, and other related parts in the embodiments involved in Figures 2A and 4A, which will not be repeated here.

[0283] In some embodiments, the network device sends a DCI for the first terminal to the first terminal on a first time-frequency resource, but is not limited thereto; the network device may also send a DCI for the second terminal to the second terminal on a second time-frequency resource.

[0284] The communication method involved in the embodiments of this disclosure may include at least one of steps S4201 to S4202. For example, step S4201 may be implemented as a standalone embodiment, step S4202 may be implemented as a standalone embodiment, and step S4201+S4202 may be implemented as a standalone embodiment, but is not limited thereto.

[0285] In some embodiments, step S4202 is optional and may be omitted or replaced in different embodiments.

[0286] In this embodiment of the disclosure, step S4201 can be combined with step S4101 of FIG4A, and step S4202 can be combined with step S4103 of FIG4A.

[0287] Figure 5A is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 5A, the present disclosure relates to a communication method, which includes:

[0288] Step S5101: Obtain the second instruction information.

[0289] The optional implementation of step S5101 can be found in the optional implementation of step S2201 in Figure 2B, and other related parts in the embodiments involved in Figure 2B, which will not be repeated here.

[0290] In some embodiments, the first terminal receives second indication information sent by a network device, but is not limited thereto; it may also receive second indication information sent by other entities.

[0291] In some embodiments, the first terminal obtains second instruction information as defined by the protocol.

[0292] In some embodiments, the first terminal obtains the second instruction information from the upper layer(s).

[0293] In some embodiments, the first terminal processes the information to obtain the second instruction information.

[0294] In some embodiments, step S5101 is omitted, and the first terminal autonomously implements the function indicated by the second instruction information, or the above function is default or default.

[0295] Step S5102: Determine the second time-frequency resource configuration information based on the second indication information.

[0296] The optional implementation of step S5102 can be found in the optional implementation of step S2202 in Figure 2B, and other related parts in the embodiments involved in Figure 2B, which will not be repeated here.

[0297] Step S5103: Determine the first time-frequency resource configuration information based on the second time-frequency resource configuration information and predefined rules.

[0298] The optional implementation of step S5103 can be found in the optional implementation of step S2203 in Figure 2B, and other related parts in the embodiments involved in Figure 2B, which will not be repeated here.

[0299] Step S5104: Perform CSS detection based on the first time-frequency resource indicated by the first time-frequency resource configuration information.

[0300] The optional implementation of step S5104 can be found in the optional implementation of step S2204 in Figure 2B, and other related parts in the embodiments involved in Figure 2B, which will not be repeated here.

[0301] The communication method involved in the embodiments of this disclosure may include at least one of steps S5101 to S5104. For example, step S5103 may be implemented as a standalone embodiment, step S5101+S5103 may be implemented as a standalone embodiment, step S5102+S5103 may be implemented as a standalone embodiment, and step S5103+S5104 may be implemented as a standalone embodiment, but is not limited thereto.

[0302] In some embodiments, steps S5101, S5102, and S5104 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0303] Figure 5B is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 5B, the present disclosure relates to a communication method, which includes:

[0304] Step S5201: Send the second instruction information.

[0305] The optional implementations of step S5201 can be found in steps S2201, S2202, and S2203 in Figure 2B, steps S5101, S5102, and S5103 in Figure 5A, and other related parts in the embodiments involved in Figures 2B and 5A, which will not be repeated here.

[0306] In some embodiments, the network device may send a second instruction message to a first terminal, but is not limited thereto. It may also send a first instruction message to other entities, for example, it may also send a second instruction message to a second terminal.

[0307] In some embodiments, the second indication information is used by the first terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the first terminal to determine the first time-frequency resource configuration information based on predefined rules.

[0308] In some embodiments, the second indication information is further used by the second terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

[0309] Step S5202: Send DCI for the first terminal on the first time-frequency resource.

[0310] The optional implementation of step S5202 can be found in the optional implementation of step S2204 in Figure 2B, step S5104 in Figure 5A, and other related parts in the embodiments involved in Figures 2B and 5A, which will not be repeated here.

[0311] In some embodiments, the network device sends a DCI for the first terminal to the first terminal on a first time-frequency resource, but is not limited thereto; the network device may also send a DCI for the second terminal to the second terminal on a second time-frequency resource.

[0312] The communication method involved in the embodiments of this disclosure may include at least one of steps S5201 to S5202. For example, step S5201 may be implemented as a standalone embodiment, step S5202 may be implemented as a standalone embodiment, and step S5201+S5202 may be implemented as a standalone embodiment, but is not limited thereto.

[0313] In some embodiments, step S5201 is optional and may be omitted or replaced in different embodiments.

[0314] In some embodiments, step S5202 is optional and may be omitted or replaced in different embodiments.

[0315] In this embodiment of the disclosure, step S5201 can be combined with step S5101 of FIG5A, and step S5202 can be combined with step S5104 of FIG5A.

[0316] Figure 6A is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 6A, the present disclosure relates to a communication method, which includes:

[0317] Step S6101: Determine the first time-frequency resource configuration information based on predefined rules or first indication information.

[0318] The optional implementations of step S6101 can be found in the optional implementations of steps S2101, S2102, and S2103 in Figure 2A, steps S2201, S2202, S2203, and S2204 in Figure 2B, steps S4101, S4102, and S4103 in Figure 4A, steps S5101, S5102, S5103, and S5104 in Figure 5A, and other related parts in the embodiments involved in Figures 2A, 2B, 4A, and 5A, which will not be repeated here.

[0319] In some embodiments, the first terminal may receive first instruction information sent by a network device, but is not limited thereto, and may also receive first instruction information sent by other entities.

[0320] In some embodiments, the first terminal obtains first instruction information as defined by the protocol.

[0321] In some embodiments, the first terminal obtains first indication information from the upper layer(s).

[0322] In some embodiments, the first terminal performs processing to obtain first instruction information.

[0323] In some embodiments, the first terminal does not need to obtain the first instruction information, and it can autonomously implement the function indicated by the first instruction information, or the above function is the default or default.

[0324] In some embodiments, the first terminal may receive a first signaling sent by a network device, the first signaling including first indication information; wherein the first signaling is at least one of MIB, SIB, and dedicated signaling of the first terminal.

[0325] In some embodiments, the first indication information is further used by the second terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

[0326] In some embodiments, when the first time-frequency resource configuration information is determined based on predefined rules, the first terminal may also receive second indication information sent by the network device, but is not limited thereto, and may also receive second indication information sent by other entities.

[0327] In some embodiments, the first terminal obtains second instruction information as defined by the protocol.

[0328] In some embodiments, the first terminal obtains the second instruction information from the upper layer(s).

[0329] In some embodiments, the first terminal processes the information to obtain the second instruction information.

[0330] In some embodiments, the first terminal does not need to obtain the second instruction information, and it can autonomously implement the function indicated by the second instruction information, or the above function is the default or default.

[0331] In some embodiments, the second indication information is used by the first terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the first terminal to determine the first time-frequency resource configuration information based on predefined rules.

[0332] In some embodiments, the first terminal may receive a second signaling sent by a network device, the second signaling including second indication information; wherein the second signaling is at least one of MIB, SIB, and dedicated signaling of the first terminal.

[0333] In some embodiments, the second indication information is further used by the second terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

[0334] In some embodiments, predefined rules are used to indicate offset information between a first time-frequency resource and a second time-frequency resource, wherein the second time-frequency resource is the time-frequency resource indicated by the second time-frequency resource configuration information.

[0335] In some embodiments, offset information is used to indicate time-frequency resource offset and / or frequency domain resource offset.

[0336] In some embodiments, the first time-frequency resource and the second time-frequency resource are different.

[0337] In some embodiments, the first time-frequency resource and the second time-frequency resource are TDM; or, the first time-frequency resource and the second time-frequency resource are FDM; or, the first time-frequency resource and the second time-frequency resource overlap in terms of resources.

[0338] In some embodiments, the communication coverage of the first terminal is wider than that of the second terminal; and / or, the power consumption of the first terminal is lower than that of the second terminal; and / or, the processing performance of the second terminal is higher than that of the first terminal.

[0339] In some embodiments, the bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal.

[0340] In some embodiments, the bandwidth occupied by cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal. The first terminal can determine the first time-frequency resource configuration information based on predefined rules or first indication information sent by network devices.

[0341] The communication method involved in the embodiments of this disclosure may include at least step S6101, and step S6101 may be implemented as a standalone embodiment, but is not limited thereto.

[0342] Figure 6B is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 6B, the present disclosure relates to a communication method, which includes:

[0343] Step S6201: Send the first instruction information or the second instruction information.

[0344] The optional implementations of step S6201 can be found in the optional implementations of steps S2101, S2102, and S2103 in Figure 2A, steps S2201, S2202, S2203, and S2204 in Figure 2B, steps S4201 and S4202 in Figure 4B, steps S5201 and S5202 in Figure 5B, and other related parts in the embodiments involved in Figures 2A, 2B, 4B, and 5B, which will not be repeated here.

[0345] In some embodiments, the network device may send the first instruction information to the first terminal, but is not limited thereto. It may also send the first instruction information to other entities, such as the second terminal.

[0346] In some embodiments, the first indication information is used by the first terminal to determine the first time-frequency resource configuration information, and the first time-frequency resource configuration information is used by the first terminal to perform CSS detection based on the first time-frequency resource.

[0347] In some embodiments, the network device may send a first signaling message to a first terminal, the first signaling message including first indication information; wherein the first signaling message is at least one of MIB, SIB, and dedicated signaling message of the first terminal.

[0348] In some embodiments, the first indication information is further used by the second terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

[0349] In some embodiments, the network device may send second indication information to the first terminal, but is not limited thereto. It may also send second indication information to other entities, such as the second terminal.

[0350] In some embodiments, the second indication information is used by the first terminal to determine the second time-frequency resource configuration information, the second time-frequency resource configuration information is used by the first terminal to determine the first time-frequency resource configuration information based on predefined rules, and the first time-frequency resource configuration information is used by the first terminal to perform CSS detection based on the first time-frequency resource.

[0351] In some embodiments, predefined rules are used to indicate offset information between a first time-frequency resource and a second time-frequency resource, wherein the second time-frequency resource is the time-frequency resource indicated by the second time-frequency resource configuration information.

[0352] In some embodiments, offset information is used to indicate time-frequency resource offset and / or frequency domain resource offset.

[0353] In some embodiments, the network device may send a second signaling message to the first terminal, the second signaling message including second indication information; wherein the second signaling message is at least one of MIB, SIB, and dedicated signaling message of the first terminal.

[0354] In some embodiments, the second indication information is further used by the second terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

[0355] In some embodiments, the first time-frequency resource and the second time-frequency resource are different.

[0356] In some embodiments, the first time-frequency resource and the second time-frequency resource are TDM; or, the first time-frequency resource and the second time-frequency resource are FDM; or, the first time-frequency resource and the second time-frequency resource overlap in terms of resources.

[0357] In some embodiments, the communication coverage of the first terminal is wider than that of the second terminal; and / or, the power consumption of the first terminal is lower than that of the second terminal; and / or, the processing performance of the second terminal is higher than that of the first terminal.

[0358] In some embodiments, the bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal.

[0359] In some embodiments, the first indication information or the second indication information is used by the first terminal to determine the first time-frequency resource configuration information when the bandwidth occupied by the cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal.

[0360] In some embodiments, the network device may also transmit downlink control information (DCI) for the first terminal on the first time-frequency resource; and / or, the network device may also transmit DCI for the second terminal on the second time-frequency resource.

[0361] The communication method involved in the embodiments of this disclosure may include at least step S6201, and step S6201 may be implemented as a standalone embodiment, but is not limited thereto.

[0362] In this embodiment of the disclosure, step S6201 can be combined with step S6101 of FIG6A.

[0363] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0364] This disclosure also proposes an apparatus for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the first terminal in any of the above methods. Alternatively, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0365] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0366] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0367] Figure 7A is a schematic diagram of the structure of the first terminal proposed in an embodiment of this disclosure. As shown in Figure 7A, the first terminal 7100 may include at least a processing module 7101. In some embodiments, the processing module 7101 is configured to determine first time-frequency resource configuration information based on predefined rules or first indication information sent by a network device. The first time-frequency resource configuration information is used by the first terminal to perform common search space (CSS) detection based on the first time-frequency resource. Optionally, the processing module 7101 is used to perform at least one of the other steps (e.g., steps S2102, S2202, and S2203, but not limited thereto) performed by the first terminal in any of the above methods, which will not be elaborated here. In some embodiments, the first terminal 7100 may also include a transceiver module. Optionally, the transceiver module is used to perform at least one of the communication steps (e.g., steps S2101, S2103, S2201, and S2204, but not limited thereto) performed by the first terminal in any of the above methods, which will not be elaborated here.

[0368] Figure 7B is a schematic diagram of the structure of a network device proposed in an embodiment of this disclosure. As shown in Figure 7B, the network device 7200 may include at least a transceiver module 7201. In some embodiments, the transceiver module 7201 is configured to send first indication information or second indication information to a first terminal; wherein, the first indication information is used by the first terminal to determine first time-frequency resource configuration information; the second indication information is used by the first terminal to determine second time-frequency resource configuration information, the second time-frequency resource configuration information is used by the first terminal to determine the first time-frequency resource configuration information based on predefined rules; the first time-frequency resource configuration information is used by the first terminal to perform CSS detection based on the first time-frequency resource. Optionally, the transceiver module 7201 is used to perform at least one of the communication steps (e.g., steps S2101, S2103, S2201, S2204, but not limited thereto) performed by the network device in any of the above methods, which will not be elaborated here. In some embodiments, the network device 7200 may further include a processing module. Optionally, the processing module is used to perform at least one of the other steps performed by the network device in any of the above methods, which will not be elaborated here.

[0369] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0370] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0371] Figure 8A is a schematic diagram of the structure of the communication device 8100 proposed in an embodiment of this disclosure. The communication device 8100 can be a network device (e.g., access network device, core network device, etc.), a first terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the first terminal in implementing any of the above methods. The communication device 8100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0372] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can 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 communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 8100 is used to execute any of the above methods.

[0373] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may also be located outside the communication device 8100.

[0374] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceivers 8103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2103, S2201, and S2204, but not limited thereto), and the processor 8101 performs at least one of other steps (e.g., steps S2102, S2202, and S2203, but not limited thereto).

[0375] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0376] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102, and the interface circuit 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0377] The communication device 8100 described in the above embodiments may be a network device or a first terminal, but the scope of the communication device 8100 described in this disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG8A. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0378] Figure 8B is a schematic diagram of the structure of chip 8200 according to an embodiment of this disclosure. For cases where the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of chip 8200 shown in Figure 8B, but it is not limited thereto.

[0379] Chip 8200 includes one or more processors 8201, which are used to perform any of the above methods.

[0380] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to memory 8203, and the interface circuit 8202 can be used to receive signals from memory 8203 or other devices, and the interface circuit 8202 can be used to send signals to memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in memory 8203 and send the instructions to processor 8201.

[0381] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2103, S2201, and S2204, but not limited thereto), and the processor 8201 performs at least one of other steps (e.g., steps S2102, S2202, and S2203, but not limited thereto).

[0382] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0383] In some embodiments, chip 8200 further includes one or more memories 8203 for storing instructions. Optionally, all or part of the memories 8203 may be located outside of chip 8200.

[0384] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device 8100, cause the communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0385] This disclosure also provides a program product that, when executed by the communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0386] This disclosure also proposes a computer program that, when run on a communication device, causes the communication device to perform any of the above methods.

[0387] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0388] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A communication method, executed by a first terminal, characterized in that, The method includes: Based on predefined rules or first indication information sent by network devices, first time-frequency resource configuration information is determined. The first time-frequency resource configuration information is used by the first terminal to perform public search space (CSS) detection based on the first time-frequency resource.

2. The method according to claim 1, characterized in that, Based on the first indication information sent by the network device, the method further includes determining the first time-frequency resource configuration information, wherein the method further comprises: Receive a first signaling message sent by the network device, wherein the first signaling message includes the first indication information; The first signaling includes at least one of the main information block (MIB), the system information block (SIB), and the dedicated signaling of the first terminal.

3. The method according to claim 1 or 2, characterized in that, The first indication information is also used by the second terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

4. The method according to claim 1, characterized in that, Based on predefined rules, the first time-frequency resource configuration information is determined, and the method further includes: The first terminal receives a second indication information sent by the network device. The second indication information is used by the first terminal to determine the second time-frequency resource configuration information. The second time-frequency resource configuration information is used by the first terminal to determine the first time-frequency resource configuration information based on predefined rules.

5. The method according to claim 4, characterized in that, The receipt of the second indication information sent by the network device includes: Receive a second signaling message sent by the network device, wherein the second signaling message includes the second indication information; The second signaling is at least one of MIB, SIB, and dedicated signaling of the first terminal.

6. The method according to claim 4 or 5, characterized in that, The second indication information is also used by the second terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

7. The method according to any one of claims 4 to 6, characterized in that, The predefined rules are used to indicate the offset information between the first time-frequency resource and the second time-frequency resource, wherein the second time-frequency resource is the time-frequency resource indicated by the second time-frequency resource configuration information.

8. The method according to claim 7, characterized in that, The offset information is used to indicate time-frequency resource offset and / or frequency domain resource offset.

9. The method according to any one of claims 3 to 8, characterized in that, The first time-frequency resource and the second time-frequency resource are different.

10. The method according to any one of claims 3 to 9, characterized in that, The first time-frequency resource and the second time-frequency resource are time-division multiplexed (TDM); or, The first time-frequency resource and the second time-frequency resource are frequency division multiplexing (FDM); or, The first time-frequency resource and the second time-frequency resource overlap in terms of resources.

11. The method according to any one of claims 3 to 10, characterized in that, The communication coverage of the first terminal is wider than that of the second terminal; and / or, The power consumption of the first terminal is lower than that of the second terminal; and / or, The second terminal has higher processing performance than the first terminal.

12. The method according to any one of claims 1 to 11, characterized in that, The bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal.

13. The method according to claim 1, characterized in that, The determination of the first time-frequency resource configuration information based on predefined rules or first indication information sent by network devices includes: The bandwidth occupied by the CSS transmission specific to the cell is greater than the maximum receiving bandwidth of the first terminal. Based on the predefined rules or the first indication information sent by the network device, the first time-frequency resource configuration information is determined.

14. A communication method, executed by a network device, characterized in that, The method includes: Send a first instruction message or a second instruction message to the first terminal; Wherein, the first indication information is used by the first terminal to determine the first time-frequency resource configuration information; The second indication information is used by the first terminal to determine the second time-frequency resource configuration information, and the second time-frequency resource configuration information is used by the first terminal to determine the first time-frequency resource configuration information based on predefined rules; The first time-frequency resource configuration information is used by the first terminal to perform CSS detection based on the first time-frequency resource.

15. The method according to claim 14, characterized in that, Send a first instruction message to the first terminal, including: Send a first signaling message to the first terminal, wherein the first signaling message includes the first indication information; Wherein, the first signaling is at least one of MIB, SIB, and dedicated signaling of the first terminal.

16. The method according to claim 14 or 15, characterized in that, The method further includes: The first indication information is sent to the second terminal. The first indication information is also used by the second terminal to determine the second time-frequency resource configuration information. The second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

17. The method according to claim 14, characterized in that, The predefined rules are used to indicate the offset information between the first time-frequency resource and the second time-frequency resource, wherein the second time-frequency resource is the time-frequency resource indicated by the second time-frequency resource configuration information.

18. The method according to claim 17, characterized in that, The offset information is used to indicate time-frequency resource offset and / or frequency domain resource offset.

19. The method according to claim 14, characterized in that, Send a second instruction message to the first terminal, including: Send a second signaling message to the first terminal, the second signaling message including the second indication information; The second signaling is at least one of MIB, SIB, and dedicated signaling of the first terminal.

20. The method according to claim 14, characterized in that, The method further includes: The second instruction information is sent to the second terminal. The second instruction information is also used by the second terminal to determine the second time-frequency resource configuration information. The second time-frequency resource configuration information is used by the second terminal to perform CSS detection based on the second time-frequency resource.

21. The method according to any one of claims 16 to 20, characterized in that, The first time-frequency resource and the second time-frequency resource are different.

22. The method according to any one of claims 16 to 21, characterized in that, The first time-frequency resource and the second time-frequency resource are TDM; or... The first time-frequency resource and the second time-frequency resource are FDM; or... The first time-frequency resource and the second time-frequency resource overlap in terms of resources.

23. The method according to any one of claims 16 to 22, characterized in that, The communication coverage of the first terminal is wider than that of the second terminal; and / or, The power consumption of the first terminal is lower than that of the second terminal; and / or, The second terminal has higher processing performance than the first terminal.

24. The method according to any one of claims 1 to 11, characterized in that, The bandwidth of the first time-frequency resource is less than or equal to the maximum receiving bandwidth of the first terminal.

25. The method according to claim 24, characterized in that, The first indication information or the second indication information is used by the first terminal to determine the first time-frequency resource configuration information when the bandwidth occupied by the cell-specific CSS transmission is greater than the maximum receiving bandwidth of the first terminal.

26. The method according to any one of claims 14 to 25, characterized in that, The method further includes any one of the following: Send downlink control information (DCI) for the first terminal on the first time-frequency resource; DCI for the second terminal is transmitted on the second time-frequency resource.

27. A communication device, characterized in that, The communication device is used to perform the communication method according to any one of claims 1-13 and 14-26.

28. A communication system, characterized in that, The device includes a first terminal and a network device, wherein the first terminal is configured to implement the communication method of any one of claims 1-13, and the network device is configured to implement the communication method of any one of claims 14-26.

29. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the communication method as described in any one of claims 1-13, 14-26.

30. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by the communication device, it implements the communication method according to any one of claims 1-13 and 14-26.

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