Communication methods, terminals, network devices, system, storage medium, and program product

Abstract

The present disclosure relates to communication methods, terminals, network devices, a system, a storage medium, and a program product. A communication method comprises: a terminal determining a frequency location of a synchronization channel on the basis of a mapping relationship, wherein the mapping relationship is a mapping relationship among a frequency range, the frequency location of the synchronization channel, and a global synchronization channel number (GSCN), and different communication protocols correspond to different mapping relationships; and the terminal receiving a synchronization signal at the frequency location. The present disclosure can avoid a situation in which terminals cannot distinguish among synchronization signals from base stations using different communication protocols, thereby ensuring as much as possible accurate identification of synchronization signals from different communication systems.

Description

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

[0001] This disclosure relates to the field of communication technology, and in particular to communication methods, terminals, network devices, systems, storage media, and program products. Background Technology

[0002] Currently, a synchronization sequence and a Physical Broadcast Channel (PBCH) are designed to ensure users obtain time and frequency synchronization upon initial cell access. The PBCH provides some basic system information for terminal access to the cell. A significant difference between LTE and NR systems is that the PBCH in LTE is located in the middle of the carrier bandwidth, while in NR systems it can be located at any position within the carrier bandwidth. Summary of the Invention

[0003] This disclosure provides communication methods, terminals, network devices, systems, storage media, and program products.

[0004] According to a first aspect of the present disclosure, a communication method is proposed, the method comprising: a terminal determining the frequency position of a synchronization channel based on a mapping relationship, wherein the mapping relationship is a mapping relationship between a frequency range, the frequency position of the synchronization channel, and a global synchronization channel number (GSCN); wherein different communication protocols correspond to different mapping relationships; and the terminal receiving a synchronization signal at the frequency position.

[0005] According to a second aspect of the present disclosure, a communication method is proposed, the method comprising: a network device transmitting a synchronization signal at a frequency position of a synchronization channel, the frequency position being determined based on a mapping relationship, the mapping relationship being a mapping relationship between a frequency range, the frequency position of the synchronization channel, and a global synchronization channel number (GSCN); wherein different communication protocols correspond to different mapping relationships.

[0006] According to a third aspect of the present disclosure, a terminal is provided, comprising: a processing module, configured to determine the frequency position of a synchronization channel based on a mapping relationship, wherein the mapping relationship is a mapping relationship between a frequency range, the frequency position of the synchronization channel, and a global synchronization channel number (GSCN); wherein different communication protocols correspond to different mapping relationships; and a transceiver module, configured to receive a synchronization signal at the frequency position.

[0007] According to a fourth aspect of the present disclosure, a network device is provided, comprising: a transceiver module, configured to transmit a synchronization signal at a frequency position of a synchronization channel, wherein the frequency position is determined based on a mapping relationship, the mapping relationship being a mapping relationship between a frequency range, the frequency position of the synchronization channel, and a global synchronization channel number (GSCN); wherein different communication protocols correspond to different mapping relationships.

[0008] According to a fifth aspect of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the communication methods in the first aspect.

[0009] According to a sixth aspect of the present disclosure, a network device is provided, comprising: one or more processors; wherein the network device is configured to perform the second aspect and any one of the communication methods in the second aspect.

[0010] According to a seventh aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the network device is configured to implement the second aspect and any one of the communication methods in the second aspect.

[0011] According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one thereof, or the second aspect and any one thereof.

[0012] According to a ninth aspect of the present disclosure, a program product is provided, comprising: a computer program, which, when executed by a communication device, causes the communication device to perform a communication method as described in the first aspect and any one of the first aspects or the second aspect and the second aspect.

[0013] This disclosure allows a terminal to determine the frequency position of a synchronization channel based on a mapping relationship, which is a mapping relationship between a frequency range, the frequency position of the synchronization channel, and the GSCN; the terminal receives a synchronization signal at the specified frequency position. Different communication protocols correspond to different mapping relationships, thereby avoiding situations where the terminal cannot distinguish the synchronization signals of base stations using different communication protocols, and ensuring, as far as possible, the correct identification of synchronization signals from different communication systems. Attached Figure Description

[0014] 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.

[0015] Figure 1a is a schematic diagram of spectrum coexistence.

[0016] Figure 1b is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0017] Figure 2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure.

[0018] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0019] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0020] Figure 5a is a schematic diagram of the structure of the terminal proposed in an embodiment of this disclosure.

[0021] Figure 5b is a schematic diagram of the structure of the network device proposed in an embodiment of this disclosure.

[0022] Figure 6a is a schematic diagram of the structure of a communication device proposed in an embodiment of this disclosure.

[0023] Figure 6b is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0024] This disclosure provides communication methods, terminals, network devices, systems, storage media, and program products.

[0025] In a first aspect, embodiments of this disclosure propose a communication method, the method comprising: a terminal determining the frequency position of a synchronization channel based on a mapping relationship, wherein the mapping relationship is a mapping relationship between a frequency range, the frequency position of the synchronization channel, and a global synchronization channel number (GSCN); wherein different communication protocols correspond to different mapping relationships; and the terminal receiving a synchronization signal at the frequency position.

[0026] In some alternative embodiments of the first aspect, the mapping relationship corresponding to the first communication protocol is determined based on the mapping relationship corresponding to the second communication protocol.

[0027] In some optional embodiments of the first aspect, the mapping relationship corresponding to the first communication protocol includes: a first frequency range, a first frequency position, and a first GSCN; the mapping relationship corresponding to the second communication protocol includes: a second frequency range, a second frequency position, and a second GSCN; the first frequency range and the second frequency range are the same, the first frequency position is determined based on the second frequency position and an offset value, and the first GSCN is determined based on the second GSCN.

[0028] In some alternative embodiments of the first aspect, the offset value is predefined in the protocol.

[0029] In some alternative embodiments of the first aspect, when the first frequency range and the second frequency range are a first range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same; when the first frequency range and the second frequency range are a second range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same or different.

[0030] In some alternative embodiments of the first aspect, the first frequency range and the second frequency range are 0 to 3000; the second frequency position is N*1200+M*50, and the first frequency position is N*K1+M*50+offset value; the first GSCN and the second GSCH are 3*N+(M-3) / 2; wherein N, M, and K1 are positive integers, and K1 is an integer multiple of 100.

[0031] In some alternative embodiments of the first aspect, the first frequency range and the second frequency range are 3000 to 24250; the second frequency position is 3000 + N * 1.44, and the first frequency position is 3000 + N * K2 + offset value; the second GSCH is 7499 + N, and the first GSCH is L1 + N, where L1 is predefined in the protocol; wherein N, M, K2, and L1 are positive integers, and K2 is an integer multiple of 180.

[0032] In some optional embodiments of the first aspect, the first frequency range and the second frequency range are 24250 to 100000; the second frequency position is 24250.08 + N * 17.28, and the first frequency position is 24250.08 + N * K3 + offset value; the second GSCH is 22256 + N, and the first GSCH is L2 + N, where L2 is predefined in the protocol; wherein N, M, K3, and L2 are positive integers, and K3 is an integer multiple of 180.

[0033] Secondly, a communication method is provided, the method comprising: a network device transmitting a synchronization signal at a frequency position of a synchronization channel, the frequency position being determined based on a mapping relationship, the mapping relationship being a mapping relationship between a frequency range, the frequency position of the synchronization channel, and a global synchronization channel number (GSCN); wherein different communication protocols correspond to different mapping relationships.

[0034] In some alternative embodiments of the second aspect, the mapping relationship corresponding to the first communication protocol is determined based on the mapping relationship corresponding to the second communication protocol.

[0035] In some optional embodiments of the second aspect, the mapping relationship corresponding to the first communication protocol includes: a first frequency range, a first frequency position, and a first GSCN; the mapping relationship corresponding to the second communication protocol includes: a second frequency range, a second frequency position, and a second GSCN; the first frequency range and the second frequency range are the same, the first frequency position is determined based on the second frequency position and an offset value, and the first GSCN is determined based on the second GSCN.

[0036] In some alternative embodiments of the second aspect, the offset value is predefined in the protocol.

[0037] In some alternative embodiments of the second aspect, when the first frequency range and the second frequency range are a first range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same; when the first frequency range and the second frequency range are a second range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same or different.

[0038] In some optional embodiments of the second aspect, the first frequency range and the second frequency range are 0 to 3000; the second frequency position is N*1200+M*50, and the first frequency position is N*K1+M*50+offset value; the first GSCN and the second GSCH are 3*N+(M-3) / 2; wherein, N, M, and K1 are positive integers, and K1 is an integer multiple of 100.

[0039] In some optional embodiments of the second aspect, the first frequency range and the second frequency range are 3000 to 24250; the second frequency position is 3000 + N * 1.44, and the first frequency position is 3000 + N * K2 + offset value; the second GSCH is 7499 + N, and the first GSCH is L1 + N, where L1 is predefined in the protocol; wherein N, M, K2, and L1 are positive integers, and K2 is an integer multiple of 180.

[0040] In some optional embodiments of the second aspect, the first frequency range and the second frequency range are 24250 to 100000; the second frequency position is 24250.08 + N * 17.28, and the first frequency position is 24250.08 + N * K3 + offset value; the second GSCH is 22256 + N, and the first GSCH is L2 + N, where L2 is predefined in the protocol; wherein N, M, K3, and L2 are positive integers, and K3 is an integer multiple of 180.

[0041] Thirdly, a terminal is provided, comprising: a processing module, configured to determine the frequency position of a synchronization channel based on a mapping relationship, wherein the mapping relationship is a mapping relationship between a frequency range, the frequency position of the synchronization channel, and a global synchronization channel number (GSCN); wherein different communication protocols correspond to different mapping relationships; and a transceiver module, configured to receive a synchronization signal at the frequency position.

[0042] Fourthly, a network device is provided, comprising: a transceiver module for transmitting a synchronization signal at a frequency position of a synchronization channel, wherein the frequency position is determined based on a mapping relationship, the mapping relationship being a mapping relationship between a frequency range, the frequency position of the synchronization channel, and a global synchronization channel number (GSCN); wherein different communication protocols correspond to different mapping relationships.

[0043] Fifthly, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the communication methods in the first aspect.

[0044] A sixth aspect provides a network device, comprising: one or more processors; wherein the network device is configured to perform the second aspect and any one of the communication methods in the second aspect.

[0045] A seventh aspect provides a communication system, including a terminal and a network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the network device is configured to implement the second aspect and any one of the communication methods in the second aspect.

[0046] Eighthly, a storage medium is provided that stores instructions, which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one thereof, or the second aspect and any one thereof.

[0047] Ninth aspect, a program product is provided, comprising: a computer program, which, when executed by a communication device, causes the communication device to perform a communication method as described in the first aspect and any one of the first aspects or the second aspect and the second aspect.

[0048] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in an optional implementation of the first or second aspect.

[0049] Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described in the optional implementations of the first or second aspect above.

[0050] It is understood that the terminals, access network devices, first network elements, other network elements, core network devices, communication systems, storage media, program products, computer programs, chips, or chip systems involved in the embodiments of this disclosure 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.

[0051] This disclosure provides communication methods, terminals, network devices, systems, storage media, and program products. In some embodiments, the terms "communication method" and "information processing method" can be used interchangeably, as can the terms "communication device" and "information processing device" and "communication device," and the terms "information processing system" and "communication system."

[0052] 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.

[0053] 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. The technical environments of different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0054] 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.

[0055] 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.

[0056] In the embodiments disclosed herein, "multiple" refers to two or more.

[0057] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0062] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0063] 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”.

[0064] 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.

[0065] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0066] 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)."

[0067] 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.

[0068] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0069] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0070] 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.

[0071] In NR systems, a synchronization grid is defined to indicate the frequency location of the Synchronization Signal Block (SSB), which can be used by the terminal to obtain system information. For initial terminal access, the possible frequency domain locations of the SSB and the default subcarrier spacing can be specified in the protocol for different frequency ranges and bands to search for the initial access SSB. A global synchronization grid is defined for all frequencies. The frequency domain location of the synchronization signal block is defined by SSREF, and the corresponding number is the Global Synchronization Channel Number (GSCN). For different frequency ranges, the frequency domain location SS of the synchronization signal block can be defined. REF The mapping relationship between the corresponding global synchronization channel number is shown in Tables 1 and 2.

[0072] Table 1

[0073] Table 2

[0074] In some embodiments, for a specific frequency band, its corresponding synchronization signal grid (Global Synchronization Channel Number (GSCN) range) and its sampling step size, as well as the subcarrier size of its corresponding SSB block and the default SSB block format, can be defined respectively, as shown in Tables 3 to 4.

[0075] Table 3

[0076] Table 4

[0077] In some embodiments, different communication protocols coexist and share spectrum, and during initial terminal access, it may be impossible to distinguish the synchronization signals of base stations using different communication protocols. Figure 1a is a schematic diagram of spectrum coexistence. Figure 1a takes the coexistence of 5G and 6G systems as an example. As shown in Figure 1a, for the deployment of 6G systems on existing 5G spectrum, for example, on FR1, the spectrum below 3 GHz is co-existent for LTE, NR, and 6G systems. From 3 GHz to 6 GHz, NR and 6G coexist. On FR2, FR2-1, i.e., 24.25–52.6 GHz, is co-existent for 6G and NR. The PBCH of the 5G system and the 6G PBCH will exist in the same frequency range, and during initial terminal access, it may be impossible for the terminal to distinguish the synchronization signals of the 5G system and the synchronization signals of the 6G system.

[0078] Therefore, this disclosure provides a communication method in which a terminal can determine the frequency position of a synchronization channel based on a mapping relationship, wherein the mapping relationship is a mapping relationship between a frequency range, the frequency position of the synchronization channel, and the GSCN; the terminal receives a synchronization signal at the frequency position. Different communication protocols correspond to different mapping relationships, thereby avoiding situations where the terminal cannot distinguish the synchronization signals of base stations with different communication protocols, and ensuring, as far as possible, the correct identification of synchronization signals from different communication systems.

[0079] Figure 1b is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0080] As shown in Figure 1b, the communication system 100 includes a terminal 101 and a network device 102.

[0081] In some embodiments, terminal 101 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, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0082] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0087] 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.

[0088] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1b, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1b are illustrative. The communication system may include all or some of the main bodies in FIG1b, or it may include other main bodies outside of FIG1b. 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.

[0089] 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), 6th generation mobile communication system (6G), 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).

[0090] Figure 2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure. As shown in Figure 2, this embodiment of the present disclosure relates to a communication method for a communication system 100, the method including:

[0091] In step S2101, terminal 101 determines the frequency position of the synchronization channel based on the mapping relationship.

[0092] In some embodiments, the mapping relationship is a mapping relationship between frequency range, frequency position of synchronization channel, and GSCN. Different communication protocols may correspond to different mapping relationships.

[0093] For example, the second communication protocol and the first communication protocol can correspond to different mapping relationships. For a network device supporting the second communication protocol, the frequency position of the synchronization channel can be determined based on the mapping relationship corresponding to the second communication protocol, and an SSB can be transmitted at the frequency position of the synchronization channel. Correspondingly, if a terminal supports the second communication protocol, it can determine the frequency position of the synchronization channel based on the mapping relationship corresponding to the second communication protocol, and receive an SSB at the frequency position of the synchronization channel. For a network device supporting the first communication protocol, the frequency position of the synchronization channel can be determined based on the mapping relationship corresponding to the first communication protocol, and an SSB can be transmitted at the frequency position of the synchronization channel. Correspondingly, if a terminal supports the first communication protocol, it can determine the frequency position of the synchronization channel based on the mapping relationship corresponding to the first communication protocol, and transmit an SSB at the frequency position of the synchronization channel. That is to say, for terminals supporting different communication protocols, they can receive SSBs transmitted by network devices supporting the same communication protocol at their respective frequency domain positions.

[0094] In some embodiments, the mapping relationship corresponding to the first communication protocol can be determined based on the mapping relationship corresponding to the second communication protocol.

[0095] In some embodiments, the first communication protocol is a newer version than the second communication protocol. Alternatively, the first communication protocol is later than the second communication protocol. For example, the first communication protocol may be a fifth-generation communication protocol, and the second communication protocol may be a sixth-generation communication protocol, where the sixth-generation protocol is a newer version than the fifth-generation protocol and is later than the fifth-generation protocol. However, it is understood that this disclosure uses the fifth-generation and sixth-generation communication protocols as examples for illustration, but is not limited to this.

[0096] In some embodiments, the mapping relationship corresponding to the first communication protocol includes: a first frequency range, a first frequency position, and a first GSCN; the mapping relationship corresponding to the second communication protocol includes: a second frequency range, a second frequency position, and a second GSCN; the first frequency range and the second frequency range are the same, the first frequency position is determined based on the second frequency position and an offset value, and the first GSCN is determined based on the second GSCN. For example, for the same frequency range, the second frequency position corresponding to the second communication protocol can be determined based on the first frequency position corresponding to the first communication protocol. The second GSCN corresponding to the second communication protocol can be determined based on the first GSCN corresponding to the first communication protocol.

[0097] In some embodiments, the offset value may be specified in the protocol. However, it is not limited to this; for example, the offset value may also be configured by the network device.

[0098] In some embodiments, the offset value may be an integer multiple of 100 kHz.

[0099] In some embodiments, when the first frequency range and the second frequency range are the same as the first range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same. For example, when the frequency range is the first range, the first frequency position can be equal to the sum of the second frequency position and the offset value, while the first GSCN can be the same as the second GSCN. For a terminal supporting the first communication protocol, it can determine the first frequency position based on the first GSCN and receive the SSB at the first frequency position. For a terminal supporting the second communication protocol, it can determine the second frequency position with an offset value from the first frequency position based on the same GSCN (i.e., the first GSCN and the second GSCN are the same), and receive the SSB at the second frequency position. That is, when the frequency range is the first range, different communication protocols can be assigned the same GSCN to save GSCN overhead, while the same GSCN for different communication protocols corresponds to different frequency positions, so as to correctly identify the synchronization signals of different communication systems.

[0100] For example, the first range may be 0 to 3000 MHz, but is not limited thereto.

[0101] In some embodiments, when the first frequency range and the second frequency range are the second range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN may be the same or different. For example, when the frequency range is the second range, the first frequency position may be equal to the sum of the second frequency position and the offset value, while the first GSCN may be the same or different from the second GSCN. For example, if they are the same, the same applies. Furthermore, the first GSCN and the second GSCN may be different, and different GSCNs correspond to different frequency positions, thereby increasing the possible possibilities for the second frequency position, increasing the possible frequency positions for the SSB of the second communication protocol, and improving communication efficiency.

[0102] For example, the second range can be any frequency range above 3000, but is not limited thereto.

[0103] In some embodiments, the first frequency range and the second frequency range are 0 to 3000; the second frequency position is N*1200+M*50, and the first frequency position is N*K1+M*50+offset value; the first GSCN and the second GSCH are 3*N+(M-3) / 2; where N, M, and K1 are positive integers, and K1 is an integer multiple of 100. * represents multiplication, and + represents addition.

[0104] For example, for a frequency range of 0–3000 GHz, the second frequency position is N*1200 + M*50, where N and M are positive integers. The value of N can range from 1 to N1, and the value of N1 can be predefined in the protocol. The value of M can be predefined by the protocol; for example, M can be 1, 3, or 5, but this disclosure does not limit this. The first frequency position can be N*K1 + M*50 + offset value. Here, K1 is an integer multiple of 100. K1 is the interval of the basic synchronization signal and can be predefined in the protocol. K1 can be 1200, in which case the second frequency position is equal to the first frequency position plus the offset value. K1 can also be other values ​​different from 1200, thus allowing for more possible values ​​for the second frequency position and improving flexibility. The second GSCN is the same as the first GSCN and can be 3N + (M-3) / 2.

[0105] For example, assume K1 = 1200kHz and the offset value is 300kHz. The first frequency position is N*1200+M*50+300.

[0106] For example, for a frequency range of 0 to 3000, the mapping relationship corresponding to the first communication protocol can be shown in Table 5.

[0107] Table 5

[0108] In some embodiments, the first frequency range and the second frequency range are 3000 to 24250; the second frequency position is 3000 + N * 1.44, the first frequency position is 3000 + N * K2 + offset value; the second GSCH is 7499 + N, the first GSCH is L1 + N, and L1 is predefined in the protocol; wherein, N, M, K2, and L1 are positive integers, and K2 is an integer multiple of 180.

[0109] For example, for a frequency range of 3000 to 24250 GHz, the second frequency position is 3000 + N * 1.44, where N is a positive integer. The value of N can range from 0 to N², where N² is a positive integer and its magnitude can be predefined in the protocol. The first frequency position can be 3000 + N * K² + offset value, where K² is an integer multiple of 180. K² is the interval of the basic synchronization signal and can be predefined in the protocol. K² can be 1.44, in which case the first frequency position is equal to the second frequency position plus the offset value. K² can also be other values ​​different from 1.44, allowing for more possible values ​​for the second frequency position and improving flexibility. The second GSCN and the first GSCN can be the same or different. For example, the second GSCN is 7499 + N, and the first GSCN is L1 + N. L1 can be 7499, in which case the first and second GSCNs are the same to save GSCN overhead. For example, L1 can be any value other than 7499, then the first GSCN and the second GSCN will be different, and the frequency positions corresponding to different GSCNs will be different, thereby increasing the possible situations of the second frequency position, increasing the possible frequency positions of the SSB of the first communication protocol, and improving communication efficiency.

[0110] For example, assuming K2 = 1.44MHz, the offset value is 300kHz, and L1 is 7499, then the first frequency position is 3000 + N * 1.44 + 300. The first GSCN is 7499 + N.

[0111] For example, assuming K2 = 1.44MHz, offset value equal to 0, and L1 equal to 7499, then the first frequency position is 3000 + N * 1.44. The first GSCN is 7499 + N.

[0112] For example, for a frequency range of 3000 to 24250 GHz, the mapping relationship corresponding to the first communication protocol can be shown in Table 6.

[0113] For example, N2 can be 14756.

[0114] Table 6

[0115] In some embodiments, the first frequency range and the second frequency range are 24250 to 100000; the second frequency position is 24250.08 + N * 17.28, the first frequency position is 24250.08 + N * K3 + offset value; the second GSCH is 22256 + N, the first GSCH is L2 + N, and L2 is predefined in the protocol; wherein, N, M, K3, and L2 are positive integers, and K3 is an integer multiple of 180.

[0116] For example, for a frequency range of 24250 to 100000 GHz, the second frequency position is 24250.08 + N * 17.28, where N is a positive integer. The value of N can range from 0 to N³, where N³ is a positive integer, and its magnitude can be predefined in the protocol. The first frequency position can be 24250.08 + N * K³ + offset value. K³ is an integer multiple of 180. K³ is the interval of the basic synchronization signal and can be predefined in the protocol. K³ can be 17.28 MHz, in which case the first frequency position is equal to the second frequency position plus the offset value. K³ can also be other values ​​besides 17.28, allowing for more possible values ​​for the second frequency position and increasing flexibility. The second GSCN and the first GSCN can be the same or different. For example, the second GSCN is 22256 + N, and the first GSCN is L2 + N. L2 can be 22256, in which case the first GSCN and the second GSCN are the same, saving GSCN overhead. For example, L2 can be any value other than 22256, then the first GSCN and the second GSCN will be different, and different GSCNs correspond to different frequency positions, thereby increasing the possible possibilities of the second frequency position, increasing the possible frequency positions of the SSB of the first communication protocol, and improving communication efficiency.

[0117] For example, assuming K3 = 17.28MHz, the offset value is 300kHz, and L2 is 22256, then the first frequency position is 24250.08 + N * 17.28 + 300. The first GSCN is 22256 + N.

[0118] For example, assuming K3 = 17.28MHz, offset value equal to 0, and L2 equal to 22256, then the first frequency position is 24250.08 + N * 17.28. The first GSCN is 22256 + N.

[0119] For example, for a frequency range of 24250 to 100000 GHz, the mapping relationship corresponding to the first communication protocol can be shown in Table 7.

[0120] For example, N2 can be 3757.

[0121] Table 7

[0122] It is understandable that there can be one or more mapping relationships corresponding to the first communication protocol. When there are multiple mapping relationships corresponding to the first communication protocol, each mapping relationship can be a separate table, or multiple mapping relationships can be combined into a single table. For example, Table 8 below shows a table composed of multiple mapping relationships.

[0123] Table 8

[0124] In some embodiments, the values ​​of K1, K2, and K3 can be determined by referring to the second frequency position in the mapping relationship corresponding to the second communication protocol, or they can be determined based on the synchronization signal block interval. Similarly, L1 and L2 can be determined based on the second GSCN in the mapping relationship corresponding to the second communication protocol, or they can be determined in other ways.

[0125] For example, K1 = 1200kHz, offset = 300kHz, K2 = 1.44MHz, N2 = 14756, L1 = 7499, K3 = 17.28MHz, L2 = 22256. The mapping relationship table corresponding to the first communication protocol is shown in Table 9:

[0126] Table 9

[0127] For example, K1 = 1200kHz, the offset value corresponding to the frequency range of 0 to 3000 kHz is 3000kHz; K2 = 2.16MHz, N2 = 9837, L1 = 7499; K3 = 20.16MHz, N3 = 3757, L2 = 17337, the offset value corresponding to the frequency range of 3000 to 100000 is 0. The mapping relationship table corresponding to the first communication protocol is shown in Table 10:

[0128] Table 10

[0129] In some embodiments, if the terminal is a terminal that supports the first communication protocol, the terminal determines the frequency position of the synchronization channel based on any one of the items in Tables 5 to 10 above, and receives SSB at that frequency position.

[0130] In some embodiments, the frequency position of the synchronization channel may also be referred to as the frequency position of the SSB, or the SSB frequency wave position, and this disclosure does not limit it in this way.

[0131] In some embodiments, the first communication protocol is a sixth-generation communication protocol and the second communication protocol is a fifth-generation communication protocol, but this disclosure does not limit this. The fifth-generation communication protocol can also be 5th-generation mobile communication technology (5G), and the sixth-generation communication protocol can also be 6th-generation mobile communication technology (6G).

[0132] In step S2102, terminal 101 receives a synchronization signal at a frequency location.

[0133] In some embodiments, network device 102 can transmit a synchronization signal at a frequency location determined based on a mapping relationship. Terminal 101 can receive the synchronization signal at a frequency location determined based on a mapping relationship, with different communication protocols corresponding to different mapping relationships.

[0134] It is understood that the specific numerical values ​​in the exemplary embodiments of this disclosure are for the purpose of making the illustration clearer, but are not intended to limit the scope of the invention.

[0135] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2102. The order of implementation is not limited. For example, step S2101 may be implemented as a standalone embodiment, but is not limited thereto.

[0136] In some embodiments, step S2102 is optional and may be omitted or replaced in different embodiments.

[0137] In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to.

[0138] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3, this embodiment of the present disclosure relates to a communication method executed by terminal 101, the method including:

[0139] Step S3101: Determine the frequency position of the synchronization channel based on the mapping relationship.

[0140] The optional implementation of step S3101 can be found in the optional implementation of step S2101 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0141] Step S3102: Obtain the synchronization signal at the frequency position.

[0142] The optional implementation of step S3102 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0143] In some embodiments, terminal 101 receives a synchronization signal sent by network device 102 at a frequency location, but is not limited thereto, and may also receive a synchronization signal sent by other entities at a frequency location.

[0144] The communication method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3102. The order of implementation is not limited. For example, step S3101 may be implemented as a standalone embodiment, but is not limited thereto.

[0145] In some embodiments, step S3102 is optional and may be omitted or replaced in different embodiments.

[0146] In some embodiments, other optional implementations may be described before or after the specification corresponding to FIG3.

[0147] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, this embodiment of the present disclosure relates to a communication method executed by a network device 102, the method comprising:

[0148] Step S4101: Determine the frequency position of the synchronization channel based on the mapping relationship.

[0149] The optional implementation of step S4101 can be found in the optional implementation of step S2101 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0150] Step S4102: Send a synchronization signal at the frequency position.

[0151] The optional implementation of step S4102 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0152] In some embodiments, network device 102 sends a synchronization signal to terminal 101 at a frequency location, but is not limited thereto; it may also send a synchronization signal to other entities at a frequency location.

[0153] The communication method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4102. The order of implementation is not limited. For example, step S4101 may be implemented as a standalone embodiment, but is not limited thereto.

[0154] In some embodiments, step S4102 is optional and may be omitted or replaced in different embodiments.

[0155] In some embodiments, other optional implementations may be described before or after the specification corresponding to Figure 4.

[0156] This disclosure provides a design method for a 6G synchronization grid, as follows:

[0157] In some embodiments, a synchronization channel grid is defined for a 6G system. This grid indicates the location mapping of potential synchronization channels initially accessed by a terminal in the frequency domain. The defined global synchronization grid applies to all frequency ranges, but the mapping differs for different frequency ranges. For a specific frequency band, a subset of the synchronization channel grid location range and a sampling step size are also defined.

[0158] In some embodiments, the location of 6G synchronization channels in different frequency ranges is determined by a predetermined channel grid mapping relationship for all frequency ranges of 6G synchronization channel grids and synchronization channel grid numbers (6G-GSCN).

[0159] (1) For frequencies below 3 GHz, the definition format is shown in Table 5.

[0160] The offset value is a predefined offset that is an integer multiple of 100kHz.

[0161] Where K1 is the interval of the basic synchronization signal as defined by the standard, which is a predefined value and is an integer multiple of 100kHz.

[0162] Where M is a predefined value in the standard, M∈{1,3,5}.

[0163] N is a positive integer that is a variable that can be used for global variables, where N = 1 to N1.

[0164] N1 is a positive integer predefined by the standard.

[0165] (2) The format defined for the frequency range of 3GHz to 24.25GHz is shown in Table 6.

[0166] The offset value is a predefined offset that is an integer multiple of 100kHz.

[0167] Wherein, K2 is the interval of the basic synchronization signal defined by the standard, which is an integer multiple of 180kHz as predefined by the standard.

[0168] N is a positive integer that is a variable applicable to global variables, N = 0 to N2.

[0169] N2 is a positive integer predefined by the standard.

[0170] L1 is the starting value for GSCN in this frequency range, and is a positive integer.

[0171] (3) The format defined for the frequency range of 24.25GHz-100GHz is shown in Table 7.

[0172] The offset value is a predefined offset that is an integer multiple of 100kHz.

[0173] Wherein, K3 is the interval of the basic synchronization signal defined by the standard, which is an integer multiple of 180kHz as predefined by the standard.

[0174] N is a positive integer that is a variable applicable to global variables, N = 0 to N3.

[0175] N3 is a positive integer predefined by the standard.

[0176] L2 is the starting value for GSCN in this frequency range, and it is a positive integer.

[0177] For example, the 6G system predefines a global synchronization channel grid and synchronization channel number, and their mapping relationship is shown in Table 8.

[0178] For example, K1 = 1200kHz, offset = 300kHz, K2 = 1.44MHz, N2 = 14756, L1 = 7499, K3 = 17.28MHz, L2 = 22256. The mapping relationship is shown in Table 9.

[0179] For example, K1 = 1200kHz, the offset value corresponding to the frequency range of 0 to 3000 is 3000kHz; K2 = 2.16MHz, N2 = 9837, L1 = 7499; K3 = 20.16MHz, N3 = 3757, L2 = 17337, the offset value corresponding to the frequency range of 3000 to 100000 is 0. The mapping relationship table is shown in Table 10.

[0180] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided 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.

[0181] 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.

[0182] 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).

[0183] Figure 5a is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. As shown in Figure 5a, the terminal 5100 may include at least one of a transceiver module 5101 and a processing module 5102. The processing module 5102 is used to determine the frequency position of the synchronization channel based on a mapping relationship, where the mapping relationship is a mapping relationship between a frequency range, the frequency position of the synchronization channel, and the Global Synchronization Channel Number (GSCN); different communication protocols correspond to different mapping relationships. The transceiver module 5101 is used to receive synchronization signals at the frequency position.

[0184] In some embodiments, the mapping relationship corresponding to the first communication protocol is determined based on the mapping relationship corresponding to the second communication protocol.

[0185] In some embodiments, the mapping relationship corresponding to the first communication protocol includes: a first frequency range, a first frequency position, and a first GSCN; the mapping relationship corresponding to the second communication protocol includes: a second frequency range, a second frequency position, and a second GSCN; the first frequency range and the second frequency range are the same, the first frequency position is determined based on the second frequency position and an offset value, and the first GSCN is determined based on the second GSCN.

[0186] In some embodiments, the offset value is predefined in the protocol.

[0187] In some embodiments, when the first frequency range and the second frequency range are the first range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same; when the first frequency range and the second frequency range are the second range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same or different.

[0188] In some embodiments, the first frequency range and the second frequency range are 0 to 3000; the second frequency position is N*1200+M*50, the first frequency position is N*K1+M*50+offset value; the first GSCN and the second GSCH are 3*N+(M-3) / 2; where N, M, and K1 are positive integers, and K1 is an integer multiple of 100.

[0189] In some embodiments, the first frequency range and the second frequency range are 3000 to 24250; the second frequency position is 3000 + N * 1.44, the first frequency position is 3000 + N * K2 + offset value; the second GSCH is 7499 + N, the first GSCH is L1 + N, and L1 is predefined in the protocol; wherein, N, M, K2, and L1 are positive integers, and K2 is an integer multiple of 180.

[0190] In some embodiments, the first frequency range and the second frequency range are 24250 to 100000; the second frequency position is 24250.08 + N * 17.28, the first frequency position is 24250.08 + N * K3 + offset value; the second GSCH is 22256 + N, the first GSCH is L2 + N, and L2 is predefined in the protocol; wherein, N, M, K3, and L2 are positive integers, and K3 is an integer multiple of 180.

[0191] Figure 5b is a schematic diagram of the network device proposed in an embodiment of this disclosure. As shown in Figure 5b, the network device 5200 may include at least one of a transceiver module 5201 and a processing module 5202. The transceiver module 5201 is used to transmit a synchronization signal at a frequency position on a synchronization channel. The frequency position is determined based on a mapping relationship, which is a mapping relationship between a frequency range, the frequency position of the synchronization channel, and the Global Synchronization Channel Number (GSCN). Different communication protocols correspond to different mapping relationships.

[0192] In some embodiments, the mapping relationship corresponding to the first communication protocol is determined based on the mapping relationship corresponding to the second communication protocol.

[0193] In some embodiments, the mapping relationship corresponding to the first communication protocol includes: a first frequency range, a first frequency position, and a first GSCN; the mapping relationship corresponding to the second communication protocol includes: a second frequency range, a second frequency position, and a second GSCN; the first frequency range and the second frequency range are the same, the first frequency position is determined based on the second frequency position and an offset value, and the first GSCN is determined based on the second GSCN.

[0194] In some embodiments, the offset value is predefined in the protocol.

[0195] In some embodiments, when the first frequency range and the second frequency range are the first range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same; when the first frequency range and the second frequency range are the second range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same or different.

[0196] In some embodiments, the first frequency range and the second frequency range are 0 to 3000; the second frequency position is N*1200+M*50, the first frequency position is N*K1+M*50+offset value; the first GSCN and the second GSCH are 3*N+(M-3) / 2; where N, M, and K1 are positive integers, and K1 is an integer multiple of 100.

[0197] In some embodiments, the first frequency range and the second frequency range are 3000 to 24250; the second frequency position is 3000 + N * 1.44, the first frequency position is 3000 + N * K2 + offset value; the second GSCH is 7499 + N, the first GSCH is L1 + N, and L1 is predefined in the protocol; wherein, N, M, K2, and L1 are positive integers, and K2 is an integer multiple of 180.

[0198] In some embodiments, the first frequency range and the second frequency range are 24250 to 100000; the second frequency position is 24250.08 + N * 17.28, the first frequency position is 24250.08 + N * K3 + offset value; the second GSCH is 22256 + N, the first GSCH is L2 + N, and L2 is predefined in the protocol; wherein, N, M, K3, and L2 are positive integers, and K3 is an integer multiple of 180.

[0199] Figure 6a is a schematic diagram of a communication device according to an embodiment of this disclosure. The communication device 6100 can be a network device, a terminal, or a chip, chip system, or processor that supports the network device in implementing any of the above methods; alternatively, the network device can be an access network device, a core network device, etc. Optionally, the terminal can be a user equipment, etc. The communication device 6100 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.

[0200] As shown in Figure 6a, the communication device 6100 includes one or more processors 6101. The processor 6101 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 the communication device, execute programs, and process program data. The communication device 6100 is used to execute any of the above methods. Optionally, the communication device can be a base station, a baseband chip, a terminal, a terminal chip, a DU, or a CU, etc.

[0201] In some embodiments, the communication device 6100 further includes one or more memories 6102 for storing instructions. Optionally, all or part of the memories 6102 may also be located outside the communication device 6100.

[0202] In some embodiments, the communication device 6100 further includes one or more transceivers 6103. When the communication device 6100 includes one or more transceivers 6103, the transceivers 6103 perform communication steps such as sending and / or receiving in the above-described method, such as steps S2101 and S2102, but are not limited thereto. The processor 6201 performs other steps, but is not limited thereto.

[0203] 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.

[0204] In some embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102, and the interface circuit 6104 can be used to receive signals from the memory 6102 or other devices, and can be used to send signals to the memory 6102 or other devices. For example, the interface circuit 6104 can read instructions stored in the memory 6102 and send the instructions to the processor 6101.

[0205] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. The communication device may be a standalone device or a 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, smart terminal, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0206] Figure 6b is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of the chip 6200 shown in Figure 6b, but it is not limited thereto.

[0207] Chip 6200 includes one or more processors 6201, which are used to perform any of the above methods.

[0208] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, the interface circuit 6202 is connected to memory 6203, and the interface circuit 6202 can be used to receive signals from memory 6203 or other devices, and the interface circuit 6202 can be used to send signals to memory 6203 or other devices. For example, the interface circuit 6202 can read instructions stored in memory 6203 and send the instructions to processor 6201.

[0209] In some embodiments, the interface circuit 6202 performs communication steps such as sending and / or receiving in the above method, such as steps S2101 and S2102, but is not limited thereto. The processor 6201 performs other steps, but is not limited thereto.

[0210] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0211] In some embodiments, chip 6200 further includes one or more memories 6203 for storing instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200.

[0212] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 6100, cause the communication device 6100 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.

[0213] This disclosure also provides a program product that, when executed by the communication device 6100, causes the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0214] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method characterized by comprising: The method includes: The terminal determines the frequency position of the synchronization channel based on a mapping relationship, which is a mapping relationship between frequency range, frequency position of synchronization channel and global synchronization channel number GSCN; Different communication protocols correspond to different mapping relationships; The terminal receives a synchronization signal at the frequency location.

2. The method according to claim 1, characterized in that, The mapping relationship corresponding to the first communication protocol is determined based on the mapping relationship corresponding to the second communication protocol.

3. The method according to claim 2, characterized in that, The mapping relationship corresponding to the first communication protocol includes: first frequency range, first frequency position, and first GSCN; The mapping relationship corresponding to the second communication protocol includes: second frequency range, second frequency position, and second GSCN; The first frequency range and the second frequency range are the same, the first frequency position is determined based on the second frequency position and the offset value, and the first GSCN is determined based on the second GSCN.

4. The method of claim 3, wherein, The offset value is predefined in the protocol.

5. The method according to any one of claims 3-4, characterized in that, When the first frequency range and the second frequency range are both within the first range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same. When the first frequency range and the second frequency range are the second range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same or different.

6. The method according to any one of claims 3-5, characterized in that, The first frequency range and the second frequency range are 0 to 3000; The second frequency position is N*1200+M*50, and the first frequency position is N*K1+M*50+offset value; The first GSCN and the second GSCH are 3*N+(M-3) / 2; Wherein, N, M, and K1 are positive integers, and K1 is an integer multiple of 100.

7. The method according to any one of claims 3-6, characterized in that, The first frequency range and the second frequency range are 3000 to 24250; The second frequency position is 3000 + N * 1.44, and the first frequency position is 3000 + N * K2 + offset value; The second GSCH is 7499+N, and the first GSCH is L1+N, where L1 is predefined in the protocol; Wherein, N, M, K2, and L1 are positive integers, and K2 is an integer multiple of 180.

8. The method according to any one of claims 3-7, characterized in that, The first frequency range and the second frequency range are 24250 to 100000; The second frequency position is 24250.08 + N * 17.28, and the first frequency position is 24250.08 + N * K3 + offset value; The second GSCH is 22256+N, and the first GSCH is L2+N, where L2 is predefined in the protocol; Wherein, N, M, K3, and L2 are positive integers, and K3 is an integer multiple of 180.

9. A communication method characterized by comprising: The method includes: Network devices transmit synchronization signals at frequency locations on synchronization channels, where the frequency locations are determined based on a mapping relationship, which is a mapping relationship between frequency range, frequency location of synchronization channels, and global synchronization channel number (GSCN). Different communication protocols correspond to different mapping relationships.

10. The method according to claim 9, characterized in that, The mapping relationship corresponding to the first communication protocol is determined based on the mapping relationship corresponding to the second communication protocol.

11. The method according to claim 10, characterized in that, The mapping relationship corresponding to the first communication protocol includes: first frequency range, first frequency position, and first GSCN; The mapping relationship corresponding to the second communication protocol includes: second frequency range, second frequency position, and second GSCN; The first frequency range and the second frequency range are the same, the first frequency position is determined based on the second frequency position and the offset value, and the first GSCN is determined based on the second GSCN.

12. The method of claim 11, wherein, The offset value is predefined in the protocol.

13. The method according to any one of claims 11-12, characterized in that, When the first frequency range and the second frequency range are both within the first range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same. When the first frequency range and the second frequency range are both the second range, the first frequency position is equal to the sum of the second frequency position and the offset value, and the first GSCN and the second GSCN are the same or different.

14. The method according to any one of claims 11-13, characterized in that, The first frequency range and the second frequency range are 0 to 3000; The second frequency position is N*1200+M*50, and the first frequency position is N*K1+M*50+offset value; The first GSCN and the second GSCH are 3*N+(M-3) / 2; Wherein, N, M, and K1 are positive integers, and K1 is an integer multiple of 100.

15. The method according to any one of claims 11-14, characterized in that, The first frequency range and the second frequency range are 3000 to 24250; The second frequency position is 3000 + N * 1.44, and the first frequency position is 3000 + N * K2 + offset value; The second GSCH is 7499+N, and the first GSCH is L1+N, where L1 is predefined in the protocol; Wherein, N, M, K2, and L1 are positive integers, and K2 is an integer multiple of 180.

16. The method according to any one of claims 11-15, characterized in that, The first frequency range and the second frequency range are 24250 to 100000; The second frequency position is 24250.08 + N * 17.28, and the first frequency position is 24250.08 + N * K3 + offset value; The second GSCH is 22256+N, and the first GSCH is L2+N, where L2 is predefined in the protocol; Wherein, N, M, K3, and L2 are positive integers, and K3 is an integer multiple of 180.

17. A terminal, characterized by include: The processing module is used to determine the frequency position of the synchronization channel based on a mapping relationship, wherein the mapping relationship is a mapping relationship between frequency range, frequency position of synchronization channel and global synchronization channel number GSCN; Different communication protocols correspond to different mapping relationships; A transceiver module is used to receive a synchronization signal at the said frequency position.

18. A network device, comprising: include: The transceiver module is used to transmit a synchronization signal at a frequency position of a synchronization channel. The frequency position is determined based on a mapping relationship, which is a mapping relationship between a frequency range, the frequency position of the synchronization channel, and the global synchronization channel number (GSCN). Different communication protocols correspond to different mapping relationships.

19. A terminal, characterized by include: One or more processors; The processor is used to execute the communication method according to any one of claims 1-8.

20. A network device, comprising: include: One or more processors; The processor is used to execute the communication method according to any one of claims 9-16.

21. A communication system, characterized by include: A terminal and a network device, wherein the terminal is configured to implement the communication method of any one of claims 1-8, and the network device is configured to implement the communication method of any one of claims 9-16.

22. A storage medium, characterized by include: The storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the communication method as described in any one of claims 1-8 or 9-16.

23. A program product, characterized by include: A computer program, when executed by a communication device, causes the communication device to perform the communication method as described in any one of claims 1-8 or 9-16.

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