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

Abstract

The present disclosure relates to the technical field of communications, and in particular to a communication method, a communication device, a storage medium, and a program product. The method comprises: sending first information and / or second information, the number of time-domain symbols occupied by the first information being greater than the number of time-domain symbols occupied by the second information. Thus, a network device can indicate, to a terminal by means of the first information and / or the second information, whether a complete synchronization signal and a complete system broadcast message are sent, or only a lightweight synchronization signal is sent, thereby facilitating corresponding processing by the terminal.

Description

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

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

[0002] In the field of communications, before a terminal and a network can transmit data, they must connect to the network through an initial access process, which includes stages such as cell search, system information reception, and random access. Summary of the Invention

[0003] This disclosure provides a communication method, communication device, storage medium, and program product that can be used in the field of communication technology. It can enable some cells to send only lightweight synchronization signals, and can instruct terminal network devices whether to send complete synchronization signals and system broadcast messages, or only lightweight synchronization signals. This can save resource overhead while the terminal can perform access and other services normally.

[0004] According to a first aspect of the present disclosure, a communication method is proposed, executed by a network device, comprising: sending first information and / or second information, wherein the number of time-domain symbols occupied by the first information is greater than the number of time-domain symbols occupied by the second information.

[0005] According to a second aspect of the present disclosure, a communication method is proposed, executed by a terminal, comprising: receiving first information and / or second information, wherein the number of time-domain symbols occupied by the first information is greater than the number of time-domain symbols occupied by the second information.

[0006] According to a third aspect of the present disclosure, a communication device is provided that can implement the communication methods described in the first and second aspects of the present disclosure.

[0007] According to a fourth aspect of the present disclosure, a computer storage medium is provided, wherein the computer storage medium stores computer-executable instructions; after being executed by a processor, the computer-executable instructions are able to implement the communication method described in any one of the first and second aspects of the present disclosure.

[0008] According to a fifth aspect of the present disclosure, a program product is provided, 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 described in any one of the first and second aspects of the present disclosure.

[0009] According to the communication method proposed in the embodiments of this disclosure, some cells can send only lightweight synchronization signals, saving resource overhead, and can indicate to the terminal device whether to send complete synchronization signals and system broadcast messages or only lightweight synchronization signals, so as to facilitate the terminal to perform corresponding processing. Attached Figure Description

[0010] 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.

[0011] Figure 1 is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0012] Figure 2 is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure;

[0013] Figure 3 is an interactive schematic diagram of another communication method provided according to an embodiment of the present disclosure;

[0014] Figure 4A is a schematic diagram of a novel lightweight design method for air interface signals provided according to an embodiment of the present disclosure;

[0015] Figure 4B is a schematic diagram of another novel lightweight design method for air interface signals provided according to an embodiment of the present disclosure;

[0016] Figure 4C is a schematic diagram of an SSB structure provided according to an embodiment of the present disclosure;

[0017] Figure 4D is a schematic diagram of another SSB structure provided according to an embodiment of the present disclosure;

[0018] Figure 4E is a schematic diagram of another SSB structure provided according to an embodiment of the present disclosure;

[0019] Figure 4F is a schematic diagram of another SSB structure provided according to an embodiment of the present disclosure;

[0020] Figure 5A is a schematic diagram of the structure of a terminal provided according to an embodiment of the present disclosure;

[0021] Figure 5B is a schematic diagram of the structure of a network device provided according to an embodiment of the present disclosure;

[0022] Figure 6A is a schematic diagram of the structure of a communication device according to an embodiment of the present 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 a communication method, communication device, storage medium, and program product.

[0025] In a first aspect, embodiments of this disclosure provide a communication method executed by a network device, comprising: sending first information and / or second information, wherein the number of time-domain symbols occupied by the first information is greater than the number of time-domain symbols occupied by the second information.

[0026] In the above embodiments, it is possible to enable some cells to send only lightweight synchronization signals, saving resource overhead, and to indicate to the terminal device whether the cell sends complete synchronization signals and system broadcast messages, or only lightweight synchronization signals, so that the terminal can perform services normally.

[0027] In conjunction with some embodiments of the first aspect, in some embodiments, the first information carries a first signal and a first system message, the first signal carries first indication information, the first indication information being used to indicate the identifier of a first cell of the network device; and / or the second information carries a second signal, the second signal carrying second indication information, the second indication information being used to indicate the identifier of a second cell of the network device.

[0028] In the above embodiments, the first information and / or the second information can be determined to facilitate determining whether the cell sends a complete synchronization signal and system broadcast message or only a lightweight synchronization signal, based on the first information and the second information. This allows some cells to send only a lightweight synchronization signal while the terminal is performing access and other services normally, thus saving resource overhead.

[0029] In conjunction with some embodiments of the first aspect, in some embodiments, the identifier of the first cell corresponds to the first information: the first information sent by the first cell carries the first signal and the first system message; the identifier of the second cell corresponds to the second information: the second information sent by the second cell carries the second signal.

[0030] In the above embodiments, the correspondence between cell identifiers and information can be determined, which makes it easier to determine whether the cell indicated by the information sends a complete synchronization signal and system broadcast message, or only a lightweight synchronization signal, based on the relationship. Under normal access and other services, some cells can send only a lightweight synchronization signal, saving resource overhead.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, the first signal includes at least one signal generated by a sequence, wherein each signal generated by a sequence is generated by at least one of a ZC sequence of length N, an m sequence of length N, and a Gold sequence of length N, where N is greater than zero information bits; the second signal includes at least one signal generated by a sequence, wherein each signal generated by a sequence is generated by at least one of a ZC sequence of length M, an m sequence of length M, and a Gold sequence of length M, where M is greater than zero information bits.

[0032] In the above embodiments, the signal carrying the information can be determined so that some cells can send only lightweight synchronization signals, thus saving resource overhead.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the transmission period of the first information is a first period; the transmission period of the second information is a second period.

[0034] In the above embodiments, the information transmission period can be determined so that the terminal can receive information according to the period. Under the condition that the terminal is performing access and other services normally, some cells only send lightweight synchronization signals, saving resource overhead.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, the second period is less than or equal to the first period.

[0036] In the above embodiments, sending a lightweight synchronization signal can shorten the information transmission cycle, making it easier for the terminal to synchronize in a timely manner, and making the synchronization between the terminal and network devices more stable.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the first signal and / or the second signal are further used to instruct the terminal to perform at least one of synchronization, measurement, and measurement result reporting.

[0038] In the above embodiments, the network device can instruct the terminal to perform synchronization, measurement, measurement result reporting, etc., through the first signal and / or the second signal. When the terminal is performing access and other services normally, some cells can send only lightweight synchronization signals to save resource overhead.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the values ​​of the first indication information and the second indication information are values ​​in a first set of values, wherein the first set of values ​​includes at least one of the following: at least one first subset, at least one second subset, and at least one third subset; the values ​​in the first subset correspond to the first indication information, the values ​​in the second subset correspond to the second indication information, and the values ​​in the third subset correspond to the first indication information and the second indication information.

[0040] In the above embodiments, the values ​​of the first indication information and the second indication information can be determined so that it can be determined whether the cell sends a complete synchronization signal and system broadcast message or only sends a lightweight synchronization signal, based on the values ​​of the first indication information and the second indication information. Under the condition that the terminal is performing access and other services normally, some cells can only send lightweight synchronization signals, saving resource overhead.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the value of the first indication information is determined jointly based on the values ​​in the second value set and the values ​​in the third value set; the value of the second indication information is determined jointly based on the values ​​in the second value set and the values ​​in the third value set, wherein the second value set includes P+1 values, where P is a positive integer, the third value set includes Q+1 values, where Q is a positive integer, the third value set includes P+1 subsets, and there is no intersection between the P+1 subsets, and each value in the second value set corresponds to one subset in the third value set.

[0042] In the above embodiments, the values ​​of the first indication information and the second indication information can be determined so that it can be determined whether the cell sends a complete synchronization signal and system broadcast message or only sends a lightweight synchronization signal, based on the values ​​of the first indication information and the second indication information. Under the condition that the terminal is performing access and other services normally, some cells can only send lightweight synchronization signals, saving resource overhead.

[0043] Secondly, embodiments of this disclosure provide a communication method executed by a terminal, comprising: receiving first information and / or second information, wherein the number of time-domain symbols occupied by the first information is greater than the number of time-domain symbols occupied by the second information.

[0044] In conjunction with some embodiments of the second aspect, in some embodiments, the first information carries a first signal and a first system message, the first signal carries first indication information, the first indication information being used to indicate the identifier of a first cell of the network device; and / or the second information carries a second signal, the second signal carries second indication information, the second indication information being used to indicate the identifier of a second cell of the network device.

[0045] In conjunction with some embodiments of the second aspect, in some embodiments, the identifier of the first cell corresponds to the first information: the first information sent by the first cell carries the first signal and the first system message; the identifier of the second cell corresponds to the second information: the second information sent by the second cell carries the second signal.

[0046] In conjunction with some embodiments of the second aspect, in some embodiments, the first signal includes at least one signal generated by a sequence, wherein each signal generated by a sequence is generated by at least one of a ZC sequence of length N, an m sequence of length N, and a Gold sequence of length N, where N is greater than zero information bits; the second signal includes at least one signal generated by a sequence, wherein each signal generated by a sequence is generated by at least one of a ZC sequence of length M, an m sequence of length M, and a Gold sequence of length M, where M is greater than zero information bits.

[0047] In conjunction with some embodiments of the second aspect, in some embodiments, the transmission period of the first information is a first period; the transmission period of the second information is a second period.

[0048] In conjunction with some embodiments of the second aspect, in some embodiments, the second period is less than or equal to the first period.

[0049] In conjunction with some embodiments of the second aspect, in some embodiments, at least one of synchronization, measurement, and measurement result reporting is performed based on a first signal and / or a second signal.

[0050] In conjunction with some embodiments of the second aspect, in some embodiments, the values ​​of the first indication information and the second indication information are values ​​in a first set of values, wherein the first set of values ​​includes at least one of the following: at least one first subset, at least one second subset, and at least one third subset; the values ​​in the first subset correspond to the first indication information, the values ​​in the second subset correspond to the second indication information, and the values ​​in the third subset correspond to the first indication information and the second indication information.

[0051] In conjunction with some embodiments of the second aspect, in some embodiments, the value of the first indication information is determined jointly based on the values ​​in the second value set and the values ​​in the third value set; the value of the second indication information is determined jointly based on the values ​​in the second value set and the values ​​in the third value set, wherein the second value set includes P+1 values, where P is a positive integer, the third value set includes Q+1 values, where Q is a positive integer, the third value set includes P+1 subsets, and there is no intersection between the P+1 subsets, and each value in the second value set corresponds to one subset in the third value set.

[0052] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes at least one of the following: determining the cell that transmits the first information and / or the second information based on the first information and / or the second information.

[0053] In the above embodiments, the terminal device can determine the cell that sends the first information and / or the second information based on the first information and / or the second information, so as to determine whether to send a complete synchronization signal and system broadcast message or only a lightweight synchronization signal based on the cell. This can save resource overhead by having some cells send only a lightweight synchronization signal when the terminal is performing access and other services normally.

[0054] In conjunction with some embodiments of the second aspect, in some embodiments, determining the cell that sends the first information and / or the second information based on the first information and / or the second information includes any one of the following: If, based on the first indication information, the value of the first indication information is determined to be a value in at least one first subset of a first value set, then the cell that sends the first information is determined to be a first cell, and the first information sent by the first cell carries a first signal and a first system message; If, based on the second indication information, the value of the second indication information is determined to be a value in at least one second subset of a first value set, then the cell that sends the second information is determined to be a second cell, and the second information sent by the second cell carries a second signal; If, based on the first indication information and the second indication information, the values ​​of the first indication information and the second indication information are determined to be values ​​in at least one third subset of a first value set, then the cell that sends the first information and the second information is determined to be a third cell, and the third cell sends the first information and the second information.

[0055] In the above embodiments, the terminal device can determine the cell that sends the first information and / or the second information based on the first information and / or the second information, so as to determine whether to send a complete synchronization signal and system broadcast message or only a lightweight synchronization signal based on the cell. This can save resource overhead by having some cells send only a lightweight synchronization signal when the terminal is performing access and other services normally.

[0056] Thirdly, embodiments of this disclosure provide a communication device for performing the methods described in any one of the first and second aspects of embodiments of this disclosure.

[0057] Fourthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in any one of the first or second aspects of embodiments of this disclosure.

[0058] Fifthly, embodiments of this disclosure provide a program product, including at least one of a program and instructions, wherein when the program or instructions are executed by a communication device, they implement the steps of the method described in any one of the first and second aspects of embodiments of this disclosure.

[0059] It is understood that the aforementioned communication equipment, storage medium, and program product are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0060] This disclosure provides a communication method, a communication device, a communication system, a storage medium, and a program product. In some embodiments, terms such as communication method and information processing method can be used interchangeably, as can terms such as network device, information processing apparatus, and communication apparatus, and terms such as information processing system and communication system.

[0061] 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. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0062] 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.

[0063] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the aforementioned," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0064] In the embodiments disclosed herein, "multiple" refers to two or more.

[0065] In some embodiments, the terms "at least one of A or B, at least one of A and B", "one or more", "a plurality of", "multiple" and the like can be used interchangeably.

[0066] 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 whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0067] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); 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, and C.

[0068] 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.

[0069] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0070] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0071] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0072] 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”.

[0073] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0074] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0075] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "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," and "bandwidth part (BWP)" can be used interchangeably.

[0076] In some embodiments, the terms "terminal", "terminal device", "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", and "client" can be used interchangeably.

[0077] In some embodiments, access network devices, core network devices, or network devices can be replaced with terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced with communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, uplink link, downlink link, etc., can be replaced with sidelink link.

[0078] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0079] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0080] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0081] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0082] 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.

[0083] This disclosure proposes a communication method, communication device, communication system, storage medium, and program product that can enable some cells to send complete synchronization signals and system broadcast messages, while others only send lightweight synchronization signals. This saves resource overhead while ensuring that the terminal can synchronize and access normally. It can also indicate to the terminal device whether to send complete synchronization signals and system broadcast messages or only lightweight synchronization signals, facilitating corresponding processing by the terminal.

[0084] The method proposed in this disclosure is applicable to various communication systems, including but not limited to 4G, 5G, 5G-advance and subsequent communication technologies (such as 6G).

[0085] 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 may include a terminal 101 and a network device 102.

[0086] In some embodiments, the method disclosed herein can be applied to a communication system. Optionally, the network device can send first information and / or second information to the terminal device. The terminal can determine the cell that sent the first information and / or the second information based on the first information and / or the second information, thereby determining whether to send a complete synchronization signal and system broadcast message or only a lightweight synchronization signal, so that the terminal can perform corresponding processing. This can save resource overhead when the terminal can synchronize and access normally.

[0087] In some embodiments, the 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, 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.

[0088] 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 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, but is not limited thereto.

[0089] 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 the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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), 6th generation mobile communication system (6G), 6G 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), and IEEE 802.16 (WiMAX, a registered trademark), 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. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0095] In the field of communications, before a UE can transmit data with the network, it must connect to the network through an initial access procedure. The initial access procedure includes stages such as cell search, system information reception, and random access. Cell search is the process by which the UE uses cell synchronization signals to perform downlink time and frequency synchronization and obtain the Physical Cell Identity (PCID). After completing downlink synchronization through cell search, the UE receives and decodes the Physical Broadcast Channel and the PDSCH carrying the minimum remaining system information to obtain the system information necessary for subsequent random access. After obtaining the system information, the UE achieves uplink time synchronization through the random access procedure, transitioning from a non-RRC (Radio Resource Control) connected state (RRC_IDLE and RRC INACTIVE) to an RRC connected state (RRC_CONNECTED), preparing for uplink and downlink data transmission. The paging procedure is used to help the network page UEs that are in a non-RRC connected state.

[0096] In the 5G NR downlink synchronization process, the NR synchronization block (Synchronization Signal PBCH Block, SSB, SS / PBCH Block) includes the primary synchronization signals (PSS), secondary synchronization signals (SSS), and the physical broadcast channel (PBCH). The PBCH contains the demodulation reference symbol (DM-RS). When a UE accesses the NR system, it first detects the PSS and SSS to obtain downlink time-frequency synchronization and the PCID, and then decodes the PBCH. The PBCH includes the Master Information Block (MIB) and other information related to the SSB transmission time. The MIB carries a portion of the minimum system information required for the UE to access the NR system. Several SSBs form an SSB burst, which is transmitted periodically.

[0097] In a 5G NR system, an SS / PBCH block, or SSB, consists of three parts: PSS, SSS, PBCH, and DM-RS. The SSB has the following characteristics in the time-frequency domain:

[0098] Time domain: The time domain occupies 4 consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols, with PSS in symbol #0, SSS in symbol #2, and PBCH in symbols #1, #2, and #3, where PBCH contains DM-RS.

[0099] Frequency Domain: A SSB occupies 20 consecutive Physical Resource Blocks (PRBs) in the frequency domain. The PSS and SSS are mapped to 127 Resource Elements (REs) in the center of PRBs #4 to #15 (a total of 12 PRBs) within their respective OFDM symbols. The 17 REs in these 12 PRBs that are not mapped to the PSS or SSS are mapped to 0. The mappings of PBCH and DM-RS in OFDM symbols #1 and #3 respectively occupy all 240 REs of the 20 PRBs. The mapping in OFDM symbol #2 occupies all 96 REs of the first and last 8 PRBs. Therefore, the mapping of PBCH in an SSB occupies a total of 576 REs. Optionally, the center frequencies of PSS / SSS and PBCH are aligned, and they all use the same subcarrier spacing.

[0100] In some embodiments, the terms “resource block (RB)”, “physical resource block (PRB)”, “sub-carrier group (SCG)”, “resource element group (REG)”, “PRB pair”, “RB pair”, “resource element (RE)”, and “sub-carrier” can be used interchangeably.

[0101] The NR SSB synchronization signal includes the primary synchronization signal PSS and the secondary synchronization signal SSS. The PSS has three sequences corresponding to three IDs. One PSS corresponds to 336 SSS sequences, and the ID of the SSS is... NR supports a total of 1008 cell identifiers (PCIDs). The ID of each cell is determined by a combination of the PSS sequence and the SSS sequence.

[0102] The NR PSS sequence is obtained by modulating a 127-length m sequence with binary phase shift keying (BPSK), and the three PSS sequences are obtained by different cyclic shifts. The NR SSS sequence is obtained by modulating a 127-length Gold sequence with BPSK, and the 336 SSS sequences are obtained by different cyclic shifts.

[0103] Gold sequences exhibit good autocorrelation and cross-correlation properties, and their cross-correlation properties are the same as those of m sequences, but their autocorrelation properties are not as good. When using generator polynomials of the same order, the number of generated Gold sequences far exceeds the number of generated m sequences; therefore, SSS uses Gold sequences.

[0104] An SSB burst set, also known as an SSB burst collection, is a method used in 5G NR systems to transmit SSBs using beamforming and beam scanning technologies. A group of multiple SSBs transmitted by a cell in one beam scan (i.e., one round-robin) is called an SSB burst set.

[0105] The reason for using SSB burst sets is that NR systems support higher frequency bands, and the higher the frequency, the shorter the transmission distance. Beamforming can increase transmission distance by concentrating energy transmission, but this leads to a reduction in the coverage angle. To ensure both transmission distance and coverage, beam scanning is used. As the frequency increases, the path loss of wireless signals in space also increases, requiring narrower beams to compensate for the path loss. This means more beams are needed to achieve coverage of the entire cell.

[0106] An SSB burst set contains multiple SSBs. The order of each SSB within the burst set, along with the total number of SSBs in the burst set, determines the location information of an SSB within a radio half-frame. Therefore, within an SSB burst set, each SSB corresponds to an SSB index. The UE can obtain the location of which four OFDM symbols within which time slot of a radio half-frame based on the received SSB's index. Within a radio half-frame, the SSB indices are ordered from 0 to Lmax-1, where Lmax is the maximum number of SSBs a cell can transmit within a radio half-frame. Since the maximum number of SSBs in an SSB burst set differs across frequency ranges, the number of bits required to represent the SSB index also varies.

[0107] During the initial cell search, the protocol stipulates that the UE will default to sending SSB burst sets with a period of 20ms, which is the length of two radio frames. Therefore, for cells that support initial cell search, the actual SSB transmission period cannot exceed 20ms, and can be configured to 5ms, 10ms, or 20ms.

[0108] After completing the initial cell search, each serving cell provides the UE with the transmission period of the SSB burst set (contained in the semi-radio frame) through the configuration parameter ssb-periodicityServingCell. The period value includes 5ms, 10ms, 20ms, 40ms, 80ms, and 160ms. If the serving cell does not configure a period value, the UE will default to a transmission period of 5ms for the SSB burst set. The UE assumes that all SSB burst sets within the same cell have the same period.

[0109] The NR protocol specifies the maximum number of SSBs (SSBs) in an SSB burst set for each frequency range, Lmax{4, 8, 64}. In actual system deployment, the network can configure the actual number of SSBs transmitted in each cell's SSB burst set and their corresponding specific time-domain locations / indexes. In other words, the actual number of SSBs transmitted within an SSB burst set must be less than or equal to Lmax. The specific reasons are as follows:

[0110] In actual network deployment, operators can configure the SSBs for each cell's burst-concentration transmission based on multiple factors, such as the size of the cell's coverage area, the angular range covered by each SSB beam, the transmit power of the base station equipment, and the number of beams supported by the base station equipment. For example, when deploying macro cells in high-frequency spectrum, more beams are used to combat path loss, and cell coverage is improved through individual beamforming gain; when using low-frequency spectrum, fewer beams can be used to achieve better coverage.

[0111] Resources not used for transmitting SSBs can be used for transmitting PDSCHs. The protocol specifies that symbols and PRBs occupied by SSBs cannot be used for PDSCH transmission. PDSCHs can be used to carry system messages, RAR response messages, and paging messages, etc. Notifying the UE of the specific transmission location of SSBs as early as possible allows the UE to know which resources originally used for transmitting SSBs can actually be used for receiving PDSCHs, thus enabling the UE to perform correct rate matching when receiving PDSCHs.

[0112] The NR protocol specifies that the UE is notified of the actual location and number of SSBs transmitted via the higher-layer parameter SSB PositionsInBurst. SSB PositionsInBurst informs the UE of the actual SSB bitmap in two ways, as shown in the table below.

[0113] Method 1: 16 bits in total, indicating relatively low granularity and flexibility, but also low overhead.

[0114] In FR1, when the maximum number of SSB transmissions is 4, the first 4 bits of inOneGroup indicate the transmission status at the 4 SSB candidate positions within an SSB burst set. "1" indicates an SSB is sent, and "0" indicates no SSB is sent. The k-th bit of the bitmap corresponds to the SSB index k-1. When the maximum number of SSB transmissions is 8, the 8 bits of inOneGroup indicate the transmission status at the 8 SSB candidate positions within an SSB burst set, using a similar method. In FR1, the 8 bits of groupPresence have no practical meaning.

[0115] FR2 specifies a maximum of 64 SSB transmissions. The 8 bits of inOneGroup divide the 64 SSB candidate positions within an SSB burst set into 8 groups, with each bit corresponding to one group. When the (m-th)th bit inInOneGroup is "1", and the corresponding 8 bits in the (m-th)th group of InOneGroup are also set to "1", it indicates that an SSB has actually been transmitted at that position. When the (m-th)th bit inInOneGroup is "0", the corresponding 8 SSB candidate positions in the (m-th)th group do not transmit an SSB.

[0116] Method 2: 4 bits, 8 bits, or 64 bits in total, providing high granularity and flexibility, but with high overhead for FR2.

[0117] Method 2 directly corresponds to all SSB candidate positions within an SSB burst set, with bit diagrams for the three cases of 4, 8, or 64. For example, a "1" bit at the k-th position indicates that an SSB was actually sent at that position, while a "0" bit indicates that no SSB was actually sent at that position. Furthermore, the k-th bit directly corresponds to the SSB index k-1.

[0118] Although the NR protocol includes the two indication methods mentioned above, TS 38.331 imposes a restriction on the definition of ssb-PositionsInBurst in method 2: "The network configures the same pattern in this field as in the corresponding field in ServingCellConfigCommonSIB." In other words, when the network configures the bit map of the actual SSB transmission position using method 2, it must be consistent with the bit map configured in method 1.

[0119] To minimize the system resource overhead used for the periodic broadcast PBCH, improve the success rate of PBCH decoding during initial access, and ensure reliable reception with sufficient cell coverage and edge coverage, the basic principle of PBCH design is to minimize the PBCH payload. As shown in the table below, the NR PBCH payload is 56 bits, of which 24 bits come from the higher-layer broadcast channel BCCH-BCH, including 23 bits of MIB; the physical layer provides the remaining 32 bits of the PBCH, including 8 bits of information related to SSB transmission time and 24 bits of CRC. Within an SSB burst set, the PBCH content of all SSBs is identical, except for the SSB index and CRC.

[0120] In 5G NR systems, the maximum transmission period for Synchronization Signal Blocks (SSBs) is 160ms. However, the network typically transmits SSBs at smaller periods (e.g., 20ms) to ensure network-wide terminal synchronization performance, random access speed and reliability, terminal system message acquisition speed, SSB-based measurements, and cell reselection timeliness. However, frequent and intensive SSB transmissions incur significant overhead, including time- and frequency-domain resource overhead, fragmentation of these resources, and increased power consumption on both the network and terminal sides. Reducing the overhead caused by SSB transmission while maintaining system performance would be highly beneficial. However, if all cells transmit SSBs in a lightweight manner—for example, only transmitting synchronization signals or simplified synchronization signals and simplified system messages—terminals will struggle to find suitable cells for access / camping in a timely and efficient manner. Therefore, this invention addresses this issue from the perspective of multiple cells: some cells transmit complete synchronization signals and broadcast system messages, while others transmit lightweight information solely for terminal synchronization and measurement.

[0121] Based on the above scheme, the terminal needs to determine whether the cell sends a complete synchronization signal and broadcast system message in order to determine whether the terminal can perform random access and the corresponding measurement method, etc. Therefore, in order to solve the above technical problems, this disclosure proposes a communication method that can indicate first information and / or second information to the terminal, so that the terminal can determine whether the cell sends a complete synchronization signal and broadcast system message or lightweight information.

[0122] The following is a schematic diagram of a communication method provided in this disclosure. Embodiments of this disclosure relate to a communication method that can be executed by a communication system, such as the communication system 100 shown in FIG1. ​​The communication system includes a terminal 101 and a network device 102. The communication method may include the following specific methods:

[0123] Figure 2 is one of the interactive schematic diagrams of the communication method provided in this embodiment of the present disclosure. As shown in Figure 2, the method includes the following steps:

[0124] Step 2101: The network device sends the first information and / or the second information to the terminal.

[0125] In the scheme disclosed herein, the first information and the second information can be "information block," "resource block," "time-frequency resource block," "resource block set," etc. Specifically, the first information and the second information can be an SSB burst set or an SSB. Optionally, the number of time-domain symbols occupied by the first information is greater than the number of time-domain symbols occupied by the second information. The time-domain symbols can be Orthogonal Frequency Division Multiplexing (OFDM) symbols. Optionally, the first information can occupy 4 consecutive OFDM symbols in the time domain, and the second information can occupy 1-3 consecutive OFDM symbols in the time domain.

[0126] 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.

[0127] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" can be used interchangeably. For example, a codebook can be a collection of one or more codewords / precoding matrices.

[0128] In some embodiments, the network device may send first information and / or second information to the terminal, but is not limited thereto; it may also send the first information to other entities. The terminal device may receive the first information and / or second information sent by the network device, but is not limited thereto; the terminal device may also receive the first information and / or second information sent by other entities, which is not limited in this disclosure.

[0129] In some embodiments, network devices may send first information and / or second information via the downlink. Terms such as "downlink control information (DCI)," "downlink (DL) assignment," "DL DCI," "uplink (UL) grant," and "UL DCI" may be used interchangeably.

[0130] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".

[0131] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0132] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0133] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0134] In some embodiments, the terms "synchronization signal (SS)," "synchronization signal block (SSB)," "reference signal (RS)," "pilot," and "pilot signal" can be used interchangeably.

[0135] In some embodiments, the SSB burst set can be a set of time-frequency resource blocks transmitted by a cell within a period. For example, a first cell can transmit 4 SSBs within a first period, that is, the first information of the first cell within a period contains 4 SSBs.

[0136] In some embodiments, the first information carries a first signal and a first system message, the first signal carrying first indication information, the first indication information being used to indicate the identifier of a first cell of the network device; and / or the second information carries a second signal, the second signal carrying second indication information, the second indication information being used to indicate the identifier of a second cell of the network device.

[0137] The first signal can be a synchronization signal carried in the SSB, including at least one of PSS and SSS; the first system message can be the PBCH in the SSB, specifically the Master Information Block (MIB) in the PBCH. Similarly, the second signal can be a synchronization signal carried in the SSB, including at least one of PSS and SSS. Optionally, the first message can carry PSS, SSS, and PBCH, and the second message can carry at least one of PSS and SSS. For example, the second message can carry PSS, or it can carry both PSS and SSS, or it can carry only PBCH. Preferably, the first message carries PSS, SSS, and PBCH, and the second message carries PSS and SSS.

[0138] In other words, the first information can carry complete information, while the second information can carry only partial information, achieving lightweight information carrying. That is, the second information can be lightweight information; for example, the second information could be a lightweight SSB, while the first information could be a complete SSB. The terminal can obtain the system messages contained in the PBCH carried by the complete first information. The system messages can instruct the terminal on the information required for random access. The terminal can access the network based on the first information. Similarly, the terminal can also perform at least one of synchronization, measurement, and measurement result reporting based on the first signal carried by the first information. However, the terminal cannot simultaneously achieve synchronization and access based on the lightweight second information. For example, when the second information carries a signal, the terminal can only perform at least one of synchronization, measurement, and measurement result reporting, and cannot perform random access.

[0139] Therefore, the method of this scheme can enable some cells to send complete first information, while other cells send lightweight second information. Terminal devices can access the network upon receiving the first information, saving resources and avoiding the need for all cells to send complete first information. Simultaneously, because the period for sending the lightweight second information is shorter, cells can send synchronization signals more frequently for terminal synchronization, avoiding the loss of synchronization between the terminal and network devices due to the longer period for sending complete first information. According to the above embodiments, the first and second signals can be used by the terminal to perform at least one of synchronization, measurement, and measurement result reporting.

[0140] In some embodiments, the first indication information and the second indication information can be used to indicate the identifier of the cell sending the information. The cell can be, for example, a base station, and the cell identifier can be a Physical Cell Identifier (PCID). That is, a first cell can send first information, and the first signal carried by the first information carries the first indication information to indicate the identifier of the first cell. A second cell can send second information, and the second signal carried by the second information carries the second indication information to indicate the identifier of the second cell. The terminal can determine the identifier of the cell sending the information based on the indication information, and can determine whether the information sent by the cell is complete information or lightweight information based on the cell identifier and the information carried.

[0141] In some embodiments, the identifier of the first cell corresponds to the first information: the first information sent by the first cell carries a first signal and a first system message; the identifier of the second cell corresponds to the second information: the second information sent by the second cell carries a second signal.

[0142] In other words, the identifier of the first cell corresponds to the fact that the first information sent by the first cell carries the first signal and the first system message. That is, when the cell is identified as the first cell based on the identifier, it can be determined that the first information sent by the first cell carries the first signal and the first system message. Similarly, the identifier of the second cell corresponds to the fact that the second information sent by the second cell carries the second signal. That is, when the cell is identified as the second cell based on the identifier, it can be determined that the second information sent by the second cell carries the second signal.

[0143] In some embodiments, the correspondence between the cells and the information may be pre-configured by the network device for the terminal or defined in the protocol. After receiving the cell identifier, the terminal can determine whether the information sent by the cell is first information or second information. That is, the terminal can determine which cell sent a complete SSB and which cell sent a lightweight SSB based on the cell identifier, and thus perform corresponding processing according to the different types of SSBs sent. For example, when it is determined that the cell sent a complete SSB, the terminal can obtain random access related information and perform network access. It can perform synchronization and measurement based on the PSS, SSS and reference signal in the complete SSB. When it is determined that the cell sent a lightweight SSB, it can perform synchronization and measurement based on the PSS and SSS in the lightweight SSB. This disclosure does not limit this.

[0144] In some embodiments, the first signal includes at least one signal generated by a sequence, wherein each signal generated by a sequence is generated by at least one of a ZC sequence of length N, an m sequence of length N, and a Gold sequence of length N, where N is greater than zero information bits; the second signal includes at least one signal generated by a sequence, wherein each signal generated by a sequence is generated by at least one of a ZC sequence of length M, an m sequence of length M, and a Gold sequence of length M, where M is greater than zero information bits.

[0145] In other words, the first signal includes at least one signal generated by a sequence, wherein each signal generated by the sequence is obtained by modulation and cyclic shifting of at least one of a ZC sequence, an m sequence, and a Gold sequence of length N, where N is greater than zero information bits; the second signal includes at least one signal generated by a sequence, wherein each signal generated by the sequence is obtained by modulation and cyclic shifting of at least one of a ZC sequence, an m sequence, and a Gold sequence of length M, where M is greater than zero information bits.

[0146] In other words, the synchronization signal may include at least one of PSS and SSS, which is generated from the sequence, where M can be equal to N. Preferably, M is less than N. Optionally, M is greater than N.

[0147] In some embodiments, the transmission period of the first information is a first period; the transmission period of the second information is a second period. Optionally, the second period is less than or equal to the first period. That is, the period for transmitting the lightweight SSB can be less than or equal to the period for transmitting the complete SSB. This can save transmission resources while enabling the cell to transmit synchronization signals at a more frequent interval for terminal synchronization, avoiding the loss of synchronization between the terminal and network equipment due to the longer period for transmitting the complete first information.

[0148] Optionally, the first period is a positive integer, and the value of the first period includes, but is not limited to, {5, 10, 20, 40, 80, 160, 320, 640, 1280} milliseconds; the second period is a positive integer, and the value of the second period includes, but is not limited to, {5, 10, 20, 40, 80, 160, 320, 640, 1280} milliseconds.

[0149] In some embodiments, the values ​​of the first indication information and the second indication information are values ​​in a first set of values, wherein the first set of values ​​includes at least one of the following: at least one first subset, at least one second subset, and at least one third subset; the values ​​in the first subset correspond to the first indication information, the values ​​in the second subset correspond to the second indication information, and the values ​​in the third subset correspond to the first indication information and the second indication information.

[0150] The first set of values ​​contains integer values ​​that can be represented as {0, 1, 2, ..., K}, where K is a positive integer greater than 0, and typical values ​​for K are 503, 1007, and 2015. The first set of values ​​may contain at least one first subset, where the values ​​correspond to first indication information, i.e., the PCID value of the cell can be determined. When the cell's PCID value belongs to the first subset, the cell sends the first information. The values ​​in the second subset correspond to second indication information; that is, when the cell's PCID value belongs to the second subset, the cell sends the second information. The values ​​in the third subset correspond to both the first and second indication information; that is, when the cell's PCID value belongs to the third subset, the cell has the ability to send both the first and second information simultaneously. In this case, the cell can send the first information in the first cycle and the second information in the second cycle.

[0151] Optionally, different cells can transmit the first and second information independently. That is, when each cell transmits its own first or second information, the period used and the time and frequency domain resources occupied are determined independently by each cell. In other words, there may be cases where the time and frequency domains overlap when different cells transmit information.

[0152] In some embodiments, the value of the first indication information is determined jointly based on the values ​​in the second value set and the values ​​in the third value set; the value of the second indication information is determined jointly based on the values ​​in the second value set and the values ​​in the third value set, wherein the second value set includes P+1 values, where P is a positive integer, the third value set includes Q+1 values, where Q is a positive integer, the third value set includes P+1 subsets, and there is no intersection between the P+1 subsets, and each value in the second value set corresponds to one subset in the third value set.

[0153] In other words, the PCID of a cell can be determined by combining the second set of values ​​and the third set of values. The second set of values ​​can be the set of values ​​for the PSS (Personal Segment Class), and the third set of values ​​can be the set of values ​​for the SSS (Segment Class Class). The integer values ​​in the second set can be represented as {0, 1, ..., M}, where M is a positive integer greater than 0, and a typical value for M is 2 (i.e., the values ​​0, 1, and 2). The positive integer values ​​in the third set of values ​​can be represented as {0, 1, 2, ..., N}, where N is a positive integer greater than 0, and a typical value for N is 503 or 1007.

[0154] In some embodiments, the values ​​of PSS and SSS can be determined, and the cell's PCID can be determined based on the values ​​of PSS and SSS. Then, the type of information sent by the cell can be determined based on the set to which the cell's PCID belongs. For example, when the value of the cell's PCID belongs to the first subset of the first set of values, the information sent by the cell is first information; when the value of the cell's PCID belongs to the second subset of the first set of values, the information sent by the cell is second information; when the value of the cell's PCID belongs to the third subset of the first set of values, the cell has the ability to send both first information and second information. In this case, the cell can send first information in the first cycle and second information in the second cycle.

[0155] Alternatively, P can be 2, meaning the second set of values ​​can include 3 values, the third set of values ​​includes Q+1 values ​​(Q is a positive integer), and the third set of values ​​includes 3 subsets with no overlap. Each value in the second set corresponds to one subset in the third set. In this case, the corresponding subset in the third set can be determined based on the value of PSS. If the PSS value corresponds to the first subset in the third set, the cell sends the first information; if the PSS value corresponds to the second subset, the cell sends the second information; if the PSS value corresponds to the third subset, the cell has the ability to send both the first and second information simultaneously. In this case, the cell can send the first information in the first cycle and the second information in the second cycle.

[0156] Step 2102: The terminal determines the cell that sent the first information and / or the second information based on the first information and / or the second information.

[0157] In some embodiments, the terminal may receive first information and / or second information. Optionally, the terminal attempts to receive / detect a first signal according to a first period value, wherein the first period value may be pre-configured or agreed upon by a protocol. When the first signal is detected, the terminal may determine that the current cell is the first cell and its corresponding cell ID information based on the first indication information in the detected first signal; the terminal may determine that the first cell is sending first information based on the first indication information in the detected first signal; subsequently, the terminal may further receive / decode the first system message in the first information for performing access; the terminal may measure the received power and report the measurement results based on the first signal.

[0158] Optionally, the terminal attempts to receive / detect the second signal according to the second period value, where the second period value can be pre-configured or agreed upon by the protocol. Upon detecting the first signal, the terminal can determine that the current cell is the second cell and its corresponding cell ID information based on the second indication information in the detected second signal. The terminal can then determine that the second cell is transmitting second information based on the second indication information in the detected second signal. Afterwards, the terminal can measure the received power and report the measurement results based on the second signal.

[0159] In some embodiments, the terminal determines the cell that sends the first information and / or the second information based on the first information and / or the second information, including any one of the following: if the value of the first indication information is determined to be a value in at least one first subset of a first value set according to the first indication information, then the cell that sends the first information is determined to be a first cell, and the first information sent by the first cell carries a first signal and a first system message; if the value of the second indication information is determined to be a value in at least one second subset of a first value set according to the second indication information, then the cell that sends the second information is determined to be a second cell, and the second information sent by the second cell carries a second signal; if the values ​​of the first indication information and the second indication information are determined to be values ​​in at least one third subset of a first value set according to the first indication information and the second indication information, then the cell that sends the first information and the second information is determined to be a third cell, and the third cell sends the first information and the second information.

[0160] In other words, the terminal can attempt to receive / detect signals according to the first cycle value or the second cycle value, and determine the value of the indication information (the cell's PCID) based on the indication information in the signal. Then, it can determine whether the cell is used to send the first information or the second information, or it can determine whether the cell can send the first information and the second information simultaneously, based on the value of the indication information.

[0161] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0162] Figure 3 is a schematic diagram of one of the communication methods provided in this disclosure. As shown in Figure 3, the method includes the following steps:

[0163] Step 3101: The network device sends the first information and / or the second information to the terminal.

[0164] In some embodiments, the steps and their optional implementations in other embodiments (such as the embodiment in Figure 2) described before or after this embodiment, as well as other related parts in the specification, can be referred to, which will not be repeated here.

[0165] The following is an exemplary description of the above method.

[0166] The method illustrated in this disclosure relates to a novel method for lightweight design of air interface signals, the full content of which is as follows.

[0167] Network side:

[0168] 1) Cell A (base station A) sends the first information, and cell B (base station B) sends the second information.

[0169] 2) The aforementioned first information possesses at least one of the following characteristics:

[0170] a) The first information carries the first signal and the first system message;

[0171] The first signal described above has at least one of the following characteristics: the first signal carries first indication information, which is typically cell ID information; the first indication information indicates that the first information sent by cell A carries the first signal and the first system message; the first signal includes at least one signal generated by a sequence, each signal being obtained by modulation and cyclic shifting of a ZC sequence, m sequence or Gold sequence of length N (N>0); the first signal is used by the terminal for synchronization and / or measurement and / or reporting.

[0172] b) The first message is sent according to the first period. The first period is a positive integer, and its value includes but is not limited to {5, 10, 20, 40, 80, 160, 320, 640, 1280} milliseconds.

[0173] 3) The aforementioned second information possesses at least one of the following characteristics:

[0174] a) The second information carries the second signal;

[0175] The second signal has at least one of the following characteristics: the second signal carries second indication information, which is typically cell ID information; the second indication information indicates that the second information sent by cell B carries the second signal; the second signal includes at least one signal generated by a sequence, each signal being obtained by modulation and cyclic shifting of a ZC sequence, m sequence, or Gold sequence of length N (N>0); the second signal is used by the terminal for synchronization and / or measurement and / or reporting.

[0176] b) The second period is a positive integer, and its values ​​include, but are not limited to, {5, 10, 20, 40, 80, 160, 320, 640, 1280} milliseconds. Optionally, the value of the second period is less than or equal to the value of the first period.

[0177] 4) The values ​​of the first and second indication information mentioned above have at least one of the following characteristics:

[0178] a) Feature 1: A first set of values, containing integer values ​​{0, 1, 2, ..., K}, where K is a positive integer greater than 0, and typical values ​​of K are 503, 1007, and 2015; the first set of values ​​contains L subsets, where L is greater than or equal to 0; the first set of values ​​contains at least one first subset: the values ​​in the first subset correspond to the first indication information; the first set of values ​​contains at least one second subset: the values ​​in the second subset correspond to the second indication information; the first set of values ​​contains at least one third subset: the values ​​in the third subset correspond to the first indication information and / or the second indication information; the first set of values ​​may contain one, two, or three of the above three subsets.

[0179] b) Feature 2: The second set of values ​​contains integer values ​​{0, 1, ..., M}, where M is a positive integer greater than 0, and the typical value of M is 2 (i.e., the three values ​​0, 1, and 2); the third set of values ​​contains positive integer values ​​{0, 1, 2, ..., N}, where N is a positive integer greater than 0, and the typical value of N is 503 or 1007; the third set of values ​​contains M+1 subsets, and these subsets have no intersection: each value in the second set of values ​​corresponds to one subset in the third set of values, and there is a one-to-one correspondence between them; at least one value in the second set of values ​​corresponds to one subset in the third set of values, and this subset corresponds to the first indication information; at least one value in the second set of values ​​corresponds to one subset in the third set of values, and this subset corresponds to the second indication information; at least one value in the second set of values ​​corresponds to one subset in the third set of values, and this subset corresponds to the first indication information and / or the second indication information.

[0180] Terminal side:

[0181] 1) The terminal receives the first information and possesses at least one of the following characteristics:

[0182] a) The terminal attempts to receive / detect according to the first cycle value;

[0183] b) Based on the first indication information in the detected first signal, the terminal determines that the current cell is cell A and its corresponding ID information;

[0184] c) The terminal determines that cell A is sending the first information based on the first indication information detected in the first signal;

[0185] d) The terminal further receives / decodes the first system message in the first information;

[0186] e) The terminal measures the received power and reports the measurement results based on the first signal.

[0187] 2) The terminal receives the second information and possesses at least one of the following characteristics:

[0188] a) The terminal attempts to receive / detect according to the second cycle value;

[0189] b) Based on the second indication information in the detected second signal, the terminal determines that the current cell is cell B and its corresponding ID information;

[0190] c) The terminal determines that cell B sent the second information based on the second indication information in the detected second signal.

[0191] d) The terminal measures the received power and reports the measurement results based on the second signal.

[0192] The above method will be explained and illustrated below through specific examples.

[0193] Example 1

[0194] As shown in Figure 4A, cell A (i.e., the first cell mentioned above) transmits the first information according to the first cycle, and cell B (i.e., the second cell mentioned above) transmits the second information according to the second cycle. Figure 4A shows that the first and second information are time-division multiplexed (TDM) in the time domain. This scheme does not restrict this; that is, when each cell transmits its own first or second information, the cycle used and the time and frequency domain resources occupied are determined independently by each cell, meaning that there is a situation of time / frequency domain overlap.

[0195] Example 2

[0196] As shown in Figure 4B, cell A sends the first information according to the first cycle, and cell B sends the second information according to the second cycle. The value of the first cycle is greater than the value of the second cycle.

[0197] In cell A, the first information within one cycle comprises four time-frequency information blocks (e.g., four SSBs). Each time-frequency information block considers the transmission characteristics of beam scanning, meaning each block corresponds to a transmission beam and an index value. As shown in Figure 4C, each time-frequency information block occupies four OFDM symbols in the time domain. Two of these OFDM symbols carry the first signal; for example, symbols #0 and #2 carry the primary synchronization signal (PSS) and the secondary synchronization signal (SSS), respectively, thus the first signal includes both the PSS and SSS. The other two OFDM symbols carry the first system message; for example, symbols #1 and #3 carry the PBCH.

[0198] In cell B, the first information within one cycle comprises four time-frequency information blocks. Each time-frequency information block considers the transmission characteristics of beam scanning, meaning each block corresponds to a transmission beam and an index value. As shown in Figure 4D, each time-frequency information block occupies two OFDM symbols in the time domain. These two symbols carry the second information, which in turn carries the second signal. For example, symbols #0 and #1 carry the primary synchronization signal PSS and the secondary synchronization signal SSS, respectively; therefore, the second signal includes both PSS and SSS.

[0199] Alternatively, as shown in Figure 4E, each time-frequency information block of cell B occupies one OFDM symbol in the time domain. This symbol carries the second information, which in turn carries the second signal. For example, if symbol #0 carries the primary synchronization signal PSS, then the second signal includes the PSS.

[0200] Alternatively, as shown in Figure 4F, each time-frequency information block of cell B occupies two OFDM symbols in the time domain. These symbols carry the second information, which in turn carries the second system message. For example, symbols #0 and #1 carry the PBCH.

[0201] Example 3

[0202] This corresponds to feature one mentioned above.

[0203] The first information sent by cell A carries the first signal, which in turn carries the first indication information. For example, during the process of the terminal receiving the SSB, the cell ID information can be obtained through the PSS and SSS, which is also the cell's unique identification information.

[0204] Similarly, the second information sent by cell B carries a second signal, which in turn carries a second indication information, indicating the ID information of cell B.

[0205] The first set of values ​​is {0, 1, 2, ..., 1007}, which contains 1008 ID values. The first set of values ​​contains three subsets, for example, the first subset is {0, 1, 2, ..., 335}, the second subset is {336, 337, ..., 671}, and the third subset is {672, 673, ..., 1007}.

[0206] When the value of the first indication information is any one of the values ​​in the first subset, the terminal can determine that the current cell is sending the first information through this value. That is, the first information sent by the cell includes the first signal and the first system message. After the terminal successfully receives the first signal, it will further receive / decode the first system message.

[0207] When the value of the second indication information is any one of the values ​​in the second subset, the terminal can determine the second information sent by the current cell through this value. That is, the second information sent by the cell only contains the second signal and does not contain any second system message. The terminal can only perform time and frequency synchronization and measurement in the current cell and cannot perform subsequent cell access and other operations.

[0208] When a terminal receives an indication message whose value is any one of the values ​​in the third subset, the terminal determines that the current cell is sending both the first and second information.

[0209] Example 4

[0210] This corresponds to feature two mentioned above.

[0211] The first indication information is obtained through a first signal, which includes PSS and SSS. The value information carried by the PSS sequence is obtained from the second value set, namely {0,1,2}. The value (cell ID) of the first indication information obtained by combining PSS and SSS is a value in the third value set {0,1,2,...,1007}.

[0212] When the terminal receives the corresponding value of 0 from the PSS, it means that the current cell is sending the first information, which includes the first signal and the first system message. The terminal does not need to obtain the complete cell ID information through the PSS and SSS, but can know that the current cell is sending the first information just by obtaining the value from the PSS.

[0213] When the terminal receives the corresponding value of 1 from the PSS, it indicates that the current cell is sending the second information. The second information only contains the second signal, and the current cell does not send any system messages. The terminal does not need to obtain the complete cell ID information through the PSS and SSS; it can know that the current cell is sending the second information simply by obtaining the value from the PSS.

[0214] When the terminal receives the PSS and obtains a value of 2, the current cell sends both the first and second information. The terminal does not need to obtain the complete cell ID information through PSS and SSS; it can know that the current cell is sending both the first and second information simply by obtaining the value from PSS.

[0215] In summary, the above examples disclosed herein can be used to determine whether the current cell is sending complete synchronization signals and system broadcast messages, or only lightweight synchronization signals, by using the cell ID.

[0216] 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.

[0217] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed, which includes units or modules for implementing the steps performed by the terminal in any of the above methods.

[0218] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through a configuration file, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0219] 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).

[0220] Figure 5A is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. The terminal 5100 is used to perform any of the above methods. In some embodiments, as shown in Figure 5A, the terminal 5100 may include a transceiver module 5101.

[0221] In some embodiments, the transceiver module is used to receive first information and / or second information sent by the network device, wherein the number of time domain symbols occupied by the first information is greater than the number of time domain symbols occupied by the second information; optionally, the transceiver module is used to perform at least one of the communication steps such as receiving / sending performed by the terminal 5100 in any of the above methods (e.g., step 2101, step 3101, etc., but not limited thereto), which will not be elaborated here.

[0222] In some embodiments, the terminal further includes a processing module for performing at least one of synchronization, measurement, and measurement result reporting based on a first signal and / or a second signal.

[0223] The processing module is also used to determine the cell that sent the first information and / or the second information based on the first information and / or the second information.

[0224] 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.

[0225] In some embodiments, the processing module can be interchanged with the processor, and the transceiver module can include a transmitting module and / or a receiving module. The transmitting module and the receiving module can be separate or integrated together, and the transceiver module can be interchanged with the transceiver.

[0226] Figure 5B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. The network device 5200 is used to perform any of the above methods. In some embodiments, as shown in Figure 5B, the terminal 5200 may include a transceiver module 5201.

[0227] In some embodiments, the transceiver module is used to send first information and / or second information to the terminal, wherein the number of time domain symbols occupied by the first information is greater than the number of time domain symbols occupied by the second information; optionally, the transceiver module is used to perform at least one of the communication steps such as receiving and / or sending performed by the network device 5200 in any of the above methods (e.g., step 2101, step 3101, etc., but not limited thereto), which will not be elaborated here.

[0228] 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.

[0229] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a 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 terminal in implementing any of the above methods. 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.

[0230] As shown in Figure 6A, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may 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. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0231] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps (e.g., steps 2101, 3101, but not limited thereto) in the above method, such as sending and / or receiving, and the processor 6101 performs at least one of other steps (e.g., step 2102, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated together. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0232] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102 and can be used to receive data and / or instructions from the memory 6102 or other devices, and can be used to send data and / or instructions to the memory 6102 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6102 and send the data and / or instructions to the processor 6101.

[0233] 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, programs and / or instructions; (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.

[0234] Figure 6B is a schematic diagram of the structure of chip 6200 according to 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 chip 6200 shown in Figure 6B, but it is not limited thereto.

[0235] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0236] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.

[0237] In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps 2101, 3101, but not limited thereto). For example, the interface circuit 6202 performing the communication steps such as sending and / or receiving in the above-described method means that the interface circuit 6202 performs data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of other steps (e.g., step 2102, but not limited thereto).

[0238] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0239] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device 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.

[0240] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0241] 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 in that, The method is performed by a network device, and the method includes: Send a first message and / or a second message, wherein the number of time-domain symbols occupied by the first message is greater than the number of time-domain symbols occupied by the second message.

2. The method according to claim 1, characterized in that: The first information carries a first signal and a first system message. The first signal carries first indication information, which is used to indicate the identifier of the first cell of the network device. and / or The second information carries a second signal, which in turn carries second indication information, which is used to indicate the identifier of the second cell of the network device.

3. The method according to claim 2, characterized in that: The identifier of the first cell corresponds to the first information: the first information sent by the first cell carries the first signal and the first system message; The identifier of the second cell corresponds to the second information: the second information sent by the second cell carries the second signal.

4. The method according to claim 2 or 3, characterized in that, The first signal includes at least one signal generated by a sequence, wherein each signal generated by the sequence is generated by at least one of a ZC sequence of length N, an m sequence of length N, and a Gold sequence of length N, where N is greater than zero information bits; The second signal includes at least one signal generated by a sequence, wherein each signal generated by the sequence is generated by at least one of a ZC sequence of length M, an m sequence of length M, and a Gold sequence of length M, wherein M is greater than zero information bits.

5. The method according to any one of claims 1 to 4, characterized in that, The sending period of the first information is the first period; The sending period of the second information is the second period.

6. The method according to claim 5, characterized in that, The second period is less than or equal to the first period.

7. The method according to any one of claims 2 to 6, characterized in that, The first signal and / or the second signal are further used to instruct the terminal to perform at least one of synchronization, measurement, and measurement result reporting.

8. The method according to any one of claims 2 to 7, characterized in that, The values ​​of the first indication information and the second indication information are values ​​from the first value set. The first set of values ​​includes at least one of the following: at least one first subset, at least one second subset, and at least one third subset; the values ​​in the first subset correspond to the first indication information, the values ​​in the second subset correspond to the second indication information, and the values ​​in the third subset correspond to both the first indication information and the second indication information.

9. The method according to any one of claims 2 to 8, characterized in that, The value of the first indication information is determined jointly based on the values ​​in the second value set and the third value set; the value of the second indication information is determined jointly based on the values ​​in the second value set and the third value set. The second set of values ​​includes P+1 values, where P is a positive integer. The third set of values ​​includes Q+1 values, where Q is a positive integer. The third set of values ​​includes P+1 subsets, and there is no intersection between the P+1 subsets. Each value in the second set of values ​​corresponds to one subset in the third set of values.

10. A communication method, characterized in that, The method is executed by a terminal, and the method includes: Receive first information and / or second information, wherein the number of time-domain symbols occupied by the first information is greater than the number of time-domain symbols occupied by the second information.

11. The method according to claim 10, characterized in that, The first information carries a first signal and a first system message. The first signal carries first indication information, which is used to indicate the identifier of the first cell of the network device. and / or The second information carries a second signal, which in turn carries second indication information, which is used to indicate the identifier of the second cell of the network device.

12. The method according to claim 11, characterized in that, The identifier of the first cell corresponds to the first information: the first information sent by the first cell carries the first signal and the first system message; The identifier of the second cell corresponds to the second information: the second information sent by the second cell carries the second signal.

13. The method according to any one of claims 11 to 12, characterized in that, The first signal includes at least one signal generated by a sequence, wherein each signal generated by the sequence is generated by at least one of a ZC sequence of length N, an m sequence of length N, and a Gold sequence of length N, where N is greater than zero information bits; The second signal includes at least one signal generated by a sequence, wherein each signal generated by the sequence is generated by at least one of a ZC sequence of length M, an m sequence of length M, and a Gold sequence of length M, wherein M is greater than zero information bits.

14. The method according to any one of claims 11 to 13, characterized in that, The sending period of the first information is the first period; The sending period of the second information is the second period.

15. The method according to claim 14, characterized in that, The second period is less than or equal to the first period.

16. The method according to any one of claims 11 to 15, characterized in that, The method further includes: Based on the first signal and / or the second signal, perform at least one of the following: synchronization, measurement, and measurement result reporting.

17. The method according to any one of claims 11 to 16, characterized in that, The values ​​of the first indication information and the second indication information are values ​​from the first value set. The first set of values ​​includes at least one of the following: at least one first subset, at least one second subset, and at least one third subset; the values ​​in the first subset correspond to the first indication information, the values ​​in the second subset correspond to the second indication information, and the values ​​in the third subset correspond to both the first indication information and the second indication information.

18. The method according to any one of claims 11 to 17, characterized in that, The value of the first indication information is determined jointly based on the values ​​in the second value set and the third value set; the value of the second indication information is determined jointly based on the values ​​in the second value set and the third value set. The second set of values ​​includes P+1 values, where P is a positive integer. The third set of values ​​includes Q+1 values, where Q is a positive integer. The third set of values ​​includes P+1 subsets, and there is no intersection between the P+1 subsets. Each value in the second set of values ​​corresponds to one subset in the third set of values.

19. The method according to any one of claims 11 to 12, characterized in that, The method further includes at least one of the following: Based on the first information and / or the second information, determine the cell that sent the first information and / or the second information.

20. The method according to claim 19, characterized in that, The determination of the cell that sent the first information and / or the second information based on the first information and / or the second information includes any one of the following: Based on the first indication information, if the value of the first indication information is determined to be a value in at least one first subset of the first value set, then the cell that sent the first information is determined to be the first cell, and the first information sent by the first cell carries a first signal and a first system message; Based on the second indication information, if the value of the second indication information is determined to be a value in at least one second subset of the first value set, then the cell that sent the second information is determined to be the second cell, and the second information sent by the second cell carries the second signal; Based on the first indication information and the second indication information, if the values ​​of the first indication information and the second indication information are determined to be values ​​in at least one third subset of the first value set, then the cell that sent the first information and the second information is determined to be the third cell, and the third cell sent the first information and the second information.

21. A communication device, characterized in that, The communication device is used to perform the method according to any one of claims 1-9 or 10-20.

22. A storage medium storing instructions, characterized in that, When the instructions are executed on the communication device, the communication device performs the method as described in any one of claims 1-9 or 10-20.

23. 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 a communication device, it implements the steps of the method according to any one of claims 1-9 or 10-20.

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