Communication methods and apparatus

Abstract

Communication methods and an apparatus, which are applied to the technical field of communications and are used for improving communication performance. A method comprises: a terminal device determining a first sequence, wherein the state of the terminal device comprises a first state, the terminal device is in the first state, and the first sequence may be any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; transmitting a first signal, or receiving a first signal, the first signal being generated on the basis of the first sequence, the first signal being carried by a first resource, the first resource being used for carrying at least one sequence, and the at least one sequence comprising the first sequence.

Description

Communication method and apparatus

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202410985577.6, filed on July 22, 2024, and titled “A Communication Method and Apparatus”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, and in particular, to a communication method and apparatus. BACKGROUND

[0004] With the development of mobile communication technology, wireless services are increasingly growing and rich, and users' demand for communication performance is also rising. Therefore, how to improve the communication performance is a current research direction. SUMMARY

[0005] Embodiments of the present application provide a communication method and apparatus for improving communication performance.

[0006] In a first aspect, the present application provides a communication method, which is applicable to a terminal device, for example, can be executed by a terminal device, or can be executed by an apparatus in a terminal device. Illustratively, the apparatus in the terminal device can refer to a component (e.g., a processor, a circuit, a chip, or a chip system, etc.) in the terminal device, or can also refer to a logical module or software capable of realizing all or part of the terminal device functions, etc.

[0007] Taking the terminal device as an execution subject, the method can include: determining a first sequence by the terminal device, the first sequence being any one of a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; transmitting or receiving a first signal, the first signal being generated based on the first sequence, the first signal being carried by a first resource, the first resource being used to carry at least one sequence, the at least one sequence including the first sequence; a state of the terminal device including a first state, the terminal device being in the first state.

[0008] Optionally, the at least one sequence can comprise at least one of a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data. It can be understood that the synchronization sequence, the paging sequence, the random access sequence, the reference signal sequence, the sequence for generating the wake-up signal, the sequence for generating the hybrid automatic repeat request signal, and the sequence for generating the data can be respectively referred to as a type of sequence.

[0009] In the above embodiments of the present application, when the terminal device is in the first state, the terminal device transmits multiple types of sequences through the first resource, which can simplify the resource configuration process and improve the communication performance.

[0010] In a possible implementation, the terminal device can further receive a fourth message from the first network device, and the fourth message comprises at least one of the first identifier, information for indicating the at least one sequence, or the first resource; wherein the first identifier is used for identifying the terminal device in multiple cells.

[0011] Through the above implementation, at least one of the first identifier, the at least one sequence, or the first resource can be configured by the first network device, so that the terminal device can transmit the at least one sequence to the network devices corresponding to the multiple cells according to the first identifier and the first resource, without frequently performing synchronization, measurement, configuration, and the like, which can simplify the mobility management and update, reduce the power consumption of the terminal device and the network devices, and improve the communication performance.

[0012] In a possible implementation, the first resource is used for carrying the at least one sequence, which can be replaced by: the first resource is used for carrying the at least one sequence in multiple cells.

[0013] Through the above implementation, the first resource carries the sequence indicated by the at least one sequence in the multiple cells, so that the terminal device can transmit the at least one sequence to the network devices corresponding to the multiple cells through the first resource when moving in the multiple cells, which can simplify the mobility management and update, reduce the power consumption of the terminal device and the network devices, and improve the communication performance.

[0014] In a second aspect, the present application provides a communication method, which is applicable to a terminal device, for example, can be executed by the terminal device, or can be executed by an apparatus in the terminal device. Illustratively, the apparatus in the terminal device can refer to a component (for example, a processor, a circuit, a chip, or a chip system, etc.) in the terminal device, or can also refer to a logic module or software capable of realizing all or part of the functions of the terminal device.

[0015] With the terminal device as an execution subject, the method can include: the terminal device receiving a fourth message from a first network device, the fourth message including at least one of the following: a first identifier, information indicating at least one sequence, or a first resource; wherein the first identifier is used to identify the terminal device within a plurality of cells, the first resource is used to carry the at least one sequence within the plurality of cells, the at least one sequence includes at least one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data, and a cell corresponding to the first network device belongs to the plurality of cells; and communicating with network devices corresponding to the plurality of cells according to the fourth message, and the state of the terminal device including a first state, and the terminal device being in the first state.

[0016] In a possible implementation, when communicating with the network devices corresponding to the plurality of cells according to the fourth message, the terminal device can send a first signal to the first network device, or receive a first signal from the first network device, the first signal being carried by the first resource, the first signal being generated based on a first sequence, the first sequence belonging to the at least one sequence, and the first sequence being any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data.

[0017] The technical effects achieved by the second aspect and any possible implementation thereof can be referred to the technical effects achieved by the first aspect and any possible implementation thereof, which will not be repeated here.

[0018] Based on the first aspect or the second aspect, in a possible implementation, the first state is associated with at least one of a connected state, an inactive state, or an idle state. For example, the first state is associated with the connected state, and the terminal device enters the first state (or wakes up the first state) when entering the connected state. For another example, the first state is associated with the inactive state, and the terminal device enters the first state (or wakes up the first state) when entering the inactive state. For another example, the first state is associated with the idle state, and the terminal device enters the first state (or wakes up the first state) when entering the idle state.

[0019] Based on the first aspect or the second aspect, in a possible implementation, the first state is a state other than the connected state, the inactive state, and the idle state.

[0020] In a possible implementation of the first aspect or the second aspect, before the sending or the receiving of the first signal, the terminal device can further receive a first message, where the first message indicates the terminal device to enter the first state, or the first message indicates the terminal device to switch from a second state to the first state, where the second state is the connected state, or the second state is the inactive state, or the second state is the idle state.

[0021] In a possible implementation of the first aspect or the second aspect, after the sending or the receiving of the first signal, the terminal device can further receive a second message, where the second message indicates the terminal device to enter a third state, or the second message indicates the terminal device to switch from the first state to the third state, where the third state is the connected state, or the third state is the inactive state, or the third state is the idle state.

[0022] In a possible implementation of the first aspect or the second aspect, before the sending or the receiving of the first signal, the terminal device can further switch from a second state to the first state when a first condition is met, where the first condition includes that a timer corresponding to the second state expires, and where the second state is the connected state, or the second state is the inactive state, or the second state is the idle state.

[0023] In a possible implementation of the first aspect or the second aspect, after the sending or the receiving of the first signal, the terminal device can further switch from the first state to a third state when a second condition is met, where the second condition includes that a timer corresponding to the first state expires, and where the third state is the connected state, or the third state is the inactive state, or the third state is the idle state.

[0024] With the above four implementations, the first state can be converted between the connected state, the inactive state, or the idle state based on dynamic signaling, or can be converted based on setting a timer, which can retain the connected state, the inactive state, and the idle state, has strong compatibility, and is conducive to application to more communication scenarios.

[0025] In a possible implementation of the first aspect or the second aspect, the first sequence is the sequence used for generating data, and the terminal device can further receive a third message, where the third message is used to indicate the terminal device to send or receive the first signal.

[0026] With the above implementation, data transmission in the first transmission mode can be grant-based transmission, or can be grant-free transmission.

[0027] In a possible implementation of the first aspect or the second aspect, the state of the terminal device further includes at least one of the following: a connected state, an inactive state, or an idle state.

[0028] In a possible implementation of the first aspect or the second aspect, the first resource occupies the same frequency domain resource in different time units, or the first resource occupies different frequency domain resources in different time units; the first resource is continuous in the frequency domain, or the first resource is discontinuous in the frequency domain; the first resource is continuous in the time domain, or the first resource is discontinuous in the time domain.

[0029] In a possible implementation of the first aspect or the second aspect, the first resource is consistent in a plurality of cells, or the first resource is unchanged in the plurality of cells. For example, the first resource is configured to be the same in the plurality of cells, or the first resource is shared by the plurality of cells, or the first resource is configured to be unchanged in the plurality of cells. The first resource can be configured for at least one terminal device to use, and the at least one terminal device can communicate with a network device corresponding to the plurality of cells through the first resource.

[0030] In a third aspect, a communication method is provided. The method is applicable to a first network device, for example, can be executed by the first network device, or can be executed by an apparatus in the first network device. Illustratively, the apparatus in the first network device can refer to a component (for example, a processor, a circuit, a chip, or a chip system, etc.) in the first network device, or can refer to a logical module or software capable of realizing all or part of the functions of the first network device.

[0031] Taking the first network device as an execution subject, the method can include: determining, by the first network device, a first sequence, the first sequence being any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; and transmitting, by the first network device, a first signal to a terminal device, or receiving, by the first network device, a first signal from the terminal device, wherein the first signal is generated based on the first sequence, the first signal is carried by a first resource, the first resource is used to carry at least one sequence, the at least one sequence includes the first sequence, and a state of the terminal device includes a first state, and the terminal device is in the first state.

[0032] Optionally, the at least one sequence can include at least one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data.

[0033] In a possible implementation, the first network device can further send a fourth message to the terminal device, the fourth message comprising at least one of the following: the first identifier, information indicating the at least one sequence, or the first resource; wherein the first identifier is used to identify the terminal device in a plurality of cells, and the plurality of cells comprise a cell corresponding to the first network device.

[0034] In a possible implementation, the first resource is used to carry the at least one sequence, which can be replaced with: the first resource is used to carry the at least one sequence in a plurality of cells, and the plurality of cells comprise a cell corresponding to the first network device.

[0035] In a fourth aspect, a communication method is provided, which is applicable to a first network device, for example, can be executed by the first network device, or can be executed by an apparatus in the first network device. Exemplarily, the apparatus in the first network device can refer to a component (for example, a processor, a circuit, a chip, or a chip system, etc.) in the first network device, or can also refer to a logical module or software, etc. capable of realizing all or part of the functions of the first network device.

[0036] Taking the first network device as an execution subject, the method can comprise: the first network device sends a fourth message to a terminal device, the fourth message comprising at least one of the following: a first identifier, information indicating at least one sequence, or a first resource; wherein the first identifier is used to identify the terminal device in a plurality of cells, and the first resource is used to carry the at least one sequence in the plurality of cells, and the at least one sequence comprises at least one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence used to generate a wake-up signal, a sequence used to generate a hybrid automatic repeat request signal, or a sequence used to generate data, and a cell corresponding to the first network device belongs to the plurality of cells; and the first network device communicates with the terminal device according to the fourth message, and a state of the terminal device comprises a first state, and the terminal device is in the first state.

[0037] In a possible implementation, when communicating with the terminal device according to the fourth message, the first network device can send a first signal to the terminal device, or receive a first signal from the terminal device, the first signal being carried by the first resource, the first signal being generated based on a first sequence, the first sequence belonging to the at least one sequence, and the first sequence being any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence used to generate a wake-up signal, a sequence used to generate a hybrid automatic repeat request signal, or a sequence used to generate data.

[0038] In a possible implementation manner of the third aspect or the fourth aspect, the first state is associated with at least one of the connected state, the inactive state, or the idle state.

[0039] In a possible implementation manner of the third aspect or the fourth aspect, the first state is a state other than the connected state, the inactive state, and the idle state.

[0040] In a possible implementation manner of the third aspect or the fourth aspect, before the first signal is transmitted or received, the first network device can further transmit, to the terminal device, a first message, where the first message indicates that the terminal device enters the first state, or the first message indicates that the terminal device switches from a second state to the first state, the second state being the connected state, or the second state being the inactive state, or the second state being the idle state.

[0041] In a possible implementation manner of the third aspect or the fourth aspect, after the first signal is transmitted or received, the first network device can further transmit, to the terminal device, a second message, where the second message indicates that the terminal device enters a third state, or the second message indicates that the terminal device switches from the first state to the third state, the third state being the connected state, or the third state being the inactive state, or the third state being the idle state.

[0042] In a possible implementation manner of the third aspect or the fourth aspect, the first sequence is the sequence used for generating data, and the first network device can further transmit, to the terminal device, a third message, where the third message is used to indicate that the terminal device transmits or receives the first signal.

[0043] In a possible implementation manner of the third aspect or the fourth aspect, the state of the terminal device further includes at least one of the connected state, the inactive state, or the idle state.

[0044] In a possible implementation manner of the third aspect or the fourth aspect, the first resource occupies same frequency domain resources in different time units, or the first resource occupies different frequency domain resources in different time units; the first resource is continuous in the frequency domain, or the first resource is discontinuous in the frequency domain; the first resource is continuous in the time domain, or the first resource is discontinuous in the time domain.

[0045] In a possible implementation manner of the third aspect or the fourth aspect, the first resource is consistent in a plurality of cells, or the first resource is unchanged in the plurality of cells, where the plurality of cells include a cell corresponding to the first network device.

[0046] The technical effects achieved by the third aspect or the fourth aspect and any possible implementation of the third aspect or the fourth aspect can refer to the technical effects achieved by the first aspect or the second aspect and any possible implementation of the first aspect or the second aspect, which will not be repeated here.

[0047] In a fifth aspect, a communication apparatus is provided, which can be used to execute the method in the first aspect or the second aspect and any possible implementation of the first aspect or the second aspect. The communication apparatus can be, for example, a terminal device, or a component in the terminal device. The communication apparatus can include a module, a unit, or a means corresponding to the method in the first aspect or the second aspect and any possible implementation of the first aspect or the second aspect, which can be implemented by hardware, software, or by executing corresponding software with hardware. The hardware or software includes one or more modules or units corresponding to the above functions.

[0048] In a possible implementation, the communication apparatus can include a baseband apparatus and a radio frequency apparatus.

[0049] In another possible implementation, the communication apparatus can include a processing module (also referred to as a processing unit) and a transceiving module (also referred to as a transceiving unit). The transceiving module can implement the sending function and the receiving function. When the transceiving module implements the sending function, it can be referred to as a sending module (also referred to as a sending unit). When the transceiving module implements the receiving function, it can be referred to as a receiving module (also referred to as a receiving unit). The sending module and the receiving module can be the same functional module, which is referred to as a transceiving module, and can implement the sending function and the receiving function. Alternatively, the sending module and the receiving module can be different functional modules, and the transceiving module refers to these functional modules in general.

[0050] In a sixth aspect, a communication apparatus is provided, which can be used to execute the method in the third aspect or the fourth aspect and any possible implementation of the third aspect or the fourth aspect. The communication apparatus can be, for example, a first network device, or a component in the first network device. The communication apparatus can include a module, a unit, or a means corresponding to the method in the third aspect or the fourth aspect and any possible implementation of the third aspect or the fourth aspect, which can be implemented by hardware, software, or by executing corresponding software with hardware. The hardware or software includes one or more modules or units corresponding to the above functions.

[0051] In a possible implementation, the communication apparatus can include a baseband apparatus and a radio frequency apparatus.

[0052] In another possible implementation, the communication apparatus can include a processing module (also referred to as a processing unit) and a transceiver module (also referred to as a transceiver unit). The transceiver module can implement the sending function and the receiving function. When the transceiver module implements the sending function, it can be referred to as a sending module (also referred to as a sending unit). When the transceiver module implements the receiving function, it can be referred to as a receiving module (also referred to as a receiving unit). The sending module and the receiving module can be the same functional module, which is referred to as a transceiver module and can implement the sending function and the receiving function. Alternatively, the sending module and the receiving module can be different functional modules, and the transceiver module refers to these functional modules in general.

[0053] In a seventh aspect, the present application provides a communication system, which can include the communication apparatus provided in the fifth aspect and / or the communication apparatus provided in the sixth aspect.

[0054] In an eighth aspect, the present application further provides a communication apparatus. The communication apparatus can include one or more processors. Optionally, the communication apparatus can further include a memory. The memory is configured to store one or more computer programs or instructions. The one or more processors are configured to execute the one or more computer programs or instructions stored in the memory, so that the communication apparatus performs the method in any one of the first aspect to the fourth aspect and any possible implementation thereof.

[0055] In a ninth aspect, the present application further provides a communication apparatus, including a processor and an interface circuit. The interface circuit is configured to receive a signal from another communication apparatus outside the communication apparatus and transmit the signal to the processor or send a signal from the processor to another communication apparatus outside the communication apparatus. The processor is configured to implement the method in any one of the aspects described above by means of a logic circuit or by executing computer programs or instructions. The communication apparatus can be the terminal device in the first aspect or the second aspect, or an apparatus including the terminal device, or an apparatus included in the terminal device, such as a chip; or the communication apparatus can be the first network device in the third aspect or the fourth aspect, or an apparatus including the first network device, or an apparatus included in the first network device.

[0056] In some possible designs, when the apparatus is a chip system, the apparatus can be composed of a chip or can include a chip and other discrete devices.

[0057] In a tenth aspect, the present application further provides a chip system, including at least one chip and a memory. The at least one chip is configured to read and execute a program stored in the memory, so as to implement the method in any one of the first aspect to the fourth aspect and any possible implementation thereof.

[0058] In a eleventh aspect, the present application also provides a computer readable storage medium for storing a computer program or instructions, which when executed, cause the method in any one of the first aspect to the fourth aspect and any possible implementation thereof to be implemented.

[0059] In a twelfth aspect, the present application also provides a computer program product comprising a computer program or instructions, which when executed on a computer, cause the method in any one of the first aspect to the fourth aspect and any possible implementation thereof to be implemented.

[0060] The technical effects achieved by the fifth aspect to the twelfth aspect and any possible implementation thereof can be referred to the technical effects achieved by any one of the first aspect to the fourth aspect and any possible implementation thereof, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0061] FIG. 1 is a schematic diagram of a network architecture of a communication system;

[0062] FIG. 2 is a schematic diagram of a base station-centered network architecture;

[0063] FIG. 3 is a schematic diagram of a user-centered network architecture;

[0064] FIG. 4 is a schematic diagram of multiple meta-BWPs provided by an embodiment of the present application;

[0065] FIG. 5 is a schematic diagram of multiple meta-BWPs provided by an embodiment of the present application;

[0066] FIG. 6 is a schematic diagram of a communication method provided by an embodiment of the present application;

[0067] FIG. 7 is a schematic diagram of a first state provided by an embodiment of the present application;

[0068] FIG. 8 is a schematic diagram of a structure of a communication apparatus provided by an embodiment of the present application;

[0069] FIG. 9 is a schematic diagram of a structure of another communication apparatus provided by an embodiment of the present application;

[0070] FIG. 10 is a schematic diagram of a structure of still another communication apparatus provided by an embodiment of the present application. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0072] The network architecture and service scenarios described in the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, as network architectures evolve and new service scenarios appear, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0073] First, in the embodiments of the present application, "multiple" can mean two or more. In view of this, "multiple" can also be understood as "at least two" in the embodiments of the present application. "At least one" can be understood as one or more, for example, one, two or more. For example, "including at least one" means including one, two or more, for example, including at least one of A, B and C, which can include A, B, C, A and B, A and C, B and C, or A, B and C. "And / or" describes the association relationship of the associated objects, and specifically can exist in three relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / ", if not specially stated, generally represents an "or" relationship between the associated objects before and after it.

[0074] Second, the terms "system" and "network" in the embodiments of the present application can be used interchangeably, and "according to" and "based on" can be used interchangeably.

[0075] The ordinal numbers "first", "second", etc. mentioned in the embodiments of the present application are generally used to distinguish different objects, and are not used to limit the order, time sequence, priority or importance of multiple objects. For example, the first state, the second state and the third state involved in the embodiments of the present application are used to distinguish different states, and do not limit the order, time sequence, priority or importance of the multiple states.

[0076] Third, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0077] Fourth, in the present application, "predefined" can include predefinition, for example, protocol definition. Wherein, "predefinition" can be realized by pre-saving corresponding codes, tables or other ways that can be used to indicate related information in devices (for example, including various network elements), and the present application does not limit the specific implementation manner thereof.

[0078] Five, the "storage" or "save" involved in the present application can refer to saving in one or more memories. The one or more memories can be separately arranged or integrated in the encoder or decoder, processor, or communication device. The one or more memories can also be partially separately arranged and partially integrated in the decoder, processor, or communication device. The type of memory can be any form of storage medium, which is not limited.

[0079] Six, the arrows or blocks shown by dashed lines in the schematic diagrams in the drawing part of the present application specification represent optional steps or optional modules.

[0080] Seven, in the present application, "indication" can include direct indication, indirect indication, display indication, and implicit indication. When describing that certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0081] In the present application, the information indicated by the indication information is referred to as the to-be-indicated information. In the specific implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or the index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a part, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of each information agreed in advance (for example, the protocol stipulates), thereby reducing the indication overhead to a certain extent. In addition, the to-be-indicated information can be sent as a whole, or can be sent separately as multiple sub-information, and the sending period and / or sending time of these sub-information can be the same or different.

[0082] Eight, in the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or can be carried out within a device, for example, between components, modules, chips, software modules or hardware modules within a device through a bus, wire or interface.

[0083] Nine, in the embodiments of the present application, the words such as "exemplarily", "for example", "such as" and the like are used to represent examples, illustrations or descriptions. Any embodiment or design scheme described as "example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the word "example" is intended to present the concept in a specific manner. In the embodiments of the present application, "of", "corresponding" and "corresponding" are sometimes used interchangeably, and it should be pointed out that when the difference is not emphasized, the meanings expressed are consistent.

[0084] Ten, the embodiments of the present application will be presented around a system including a plurality of devices, components, modules, etc. It should be understood that the system can include other devices, components, modules, etc. not mentioned, or can only include part of the devices, components, or modules mentioned in the embodiments. Alternatively, "component" and "part" in the present application can be replaced with each other.

[0085] The following first introduces a communication system to which the embodiments of the present application are applicable.

[0086] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a communication sensing integrated (integrated sensing and communication, ISAC) system, a universal mobile communication system (universal mobile telecommunications system, UMTS), a wireless local area network (wireless local area network, WLAN), a short-range wireless communication system (such as a sidelink, wireless fidelity (wireless fidelity, Wi-Fi), Bluetooth, etc.), a wired network, a vehicle to everything (vehicle to everything, V2X) communication system, a device-to-device (device-to-device, D2D) communication system, a vehicle networking communication system, a 4th generation (4th generation, 4G) mobile communication system (such as a long term evolution (long term evolution, LTE) system), an LTE frequency division duplex (frequency division duplex, FDD) system, an LTE time division duplex (time division duplex, TDD), a worldwide interoperability for microwave access (worldwide interoperability for microwave access, WiMAX) communication system, a 5th generation (5th generation, 5G) mobile communication system (such as a new radio (new radio, NR) system), a future communication system, or other similar communication systems, etc. The embodiments of the present application are described taking the communication system shown in FIG. 1 as an example. When the technical solutions of the embodiments of the present application are applied to other communication systems, the devices, components, modules, etc. in the embodiments can be replaced by corresponding devices, components, modules in other communication systems, without limitation.

[0087] Figure 1 is a schematic diagram of an architecture of a communication system to which embodiments of the present application are applied. As shown in Figure 1, the communication system includes an access network 100 and a core network 200. Optionally, the communication system can also include an Internet 300. Among them, the access network 100 can include at least one radio access network (RAN) node, such as 110a and 110b in Figure 1, and at least one terminal device, such as 120a-120j in Figure 1. Among them, 110a is a base station, 110b is a micro station, 120a, 120e, 120f and 120j are mobile phones, 120b is a car, 120c is a fuel dispenser, 120d is a home access point (HAP) arranged indoors or outdoors, 120g is a notebook computer, 120h is a printer, and 120i is a drone. Among them, the same terminal device or network device can provide different functions in different application scenarios. For example, the mobile phones in Figure 1 are 120a, 120e, 120f and 120j, the mobile phone 120a can access the base station 110a, connect the car 120b, communicate directly with the mobile phone 120e and access the HAP, the car 120b can access the HAP and communicate directly with the mobile phone 120a, the mobile phone 120f can access the micro station 110b, connect the notebook computer 120g, and connect the printer 120h, and the mobile phone 120j can control the drone 120i.

[0088] The network device is a network-side device with wireless transceiving function. The network device can be a device in a radio access network (RAN) that provides wireless communication function for a terminal device, referred to as a RAN device; or the network device can also be a core network device. For ease of understanding, the network device is taken as a RAN device in the following description. The RAN can be an access network in the 3rd generation partnership project (3GPP), for example, a 4G, 5G, or future-oriented network. The RAN can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), or a communication network of two or more of the above networks. The RAN device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, an access node in a WiFi system, a wireless relay node, or a wireless backhaul node, etc.

[0089] The RAN device can also be a module or unit that completes the function of the base station part, for example, can be a central unit (CU), can also be a distributed unit (DU), and can also be a radio unit (RU). The CU here completes the function of the radio resource control protocol and the packet data convergence layer protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the function of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete the function of part of the physical layer or the entire physical layer. For specific descriptions of the above-mentioned various protocol layers, refer to the relevant technical specifications of the 3rd generation partnership project (3GPP). The CU and the DU can be separately arranged, or can also be included in the same network element, for example, in a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, included in a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH). In different systems, the CU, the DU, or the RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an open CU (O-CU), the DU can also be referred to as an open DU (O-DU), and the RU can also be referred to as an open RU (O-RU). Any one of the CU (or CU-control plane (CU-CP) or CU-user plane (CU-UP)), the DU, and the RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The network device can be a macro base station (such as 110a in FIG. 1), can also be a micro base station or an indoor station (such as 110b in FIG. 1), and can also be a relay node or a donor node, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the network device.

[0090] In the embodiments of the present application, the functions of the network device can also be performed by a module (such as a chip) in the network device, or by a control subsystem containing the functions of the network device. The control subsystem containing the functions of the network device herein can be a control center in the above-mentioned application scenarios such as smart grid, industrial control, intelligent transportation, smart city, etc.

[0091] The terminal device is a user-side device with wireless transceiving function. The terminal device can also be referred to as a terminal, user equipment (UE), user terminal, user apparatus, user unit, user station, access terminal, access station, UE station, remote station, wireless communication device, mobile station, or mobile terminal, etc. The terminal device is usually provided with a communication module, circuit or chip for performing corresponding communication functions. The terminal device is also configured with program instructions for performing corresponding communication functions. The terminal device can be widely applied in various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, machine to machine (M2M) or machine-type communication (MTC), internet of things (IOT), virtual reality (VR), augmented reality (AR), industrial control, self driving, remote medical, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal device can be a mobile phone, tablet computer, computer with wireless transceiving function, wearable device, vehicle, unmanned aerial vehicle, helicopter, airplane, ship, robot, mechanical arm, smart home device, transport vehicle with wireless communication function, communication module, etc.

[0092] In the embodiments of the present application, the device for implementing the functions of the terminal device can be a terminal device, or a device capable of supporting the terminal device to implement the functions, such as a chip system or a combination device or component that can implement the functions of the terminal device, which can be installed in the terminal device. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

[0093] The network device and the terminal device can be fixed in position or movable. The network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can be deployed on water; and can be deployed on an airplane, a balloon, and a man-made satellite in the air. Embodiments of the present application do not limit the application scenarios of the network device and the terminal device.

[0094] The network device and the terminal device can communicate with each other through an air interface protocol. The air interface can be referred to as an air interface. The network device and the network device can communicate with each other through a network device-to-network device interface protocol. The terminal device and the terminal device can communicate with each other through a terminal device-to-terminal device interface protocol. The network device and the terminal device, the network device and the network device, and the terminal device and the terminal device can communicate through a licensed spectrum, an unlicensed spectrum, or both, without limitation.

[0095] The roles of the network device and the terminal device can be relative, for example, the helicopter or the unmanned aerial vehicle 120i in FIG. 1 can be configured as a mobile network device. For the terminal device 120j that accesses the wireless access network 100 through 120i, the terminal device 120i is a network device; but for the network device 110a, 120i is a terminal device, that is, 110a and 120i communicate with each other through a wireless air interface protocol. Of course, 110a and 120i can also communicate with each other through a network device-to-network device interface protocol, in which case, 120i is also a network device relative to 110a. Therefore, the network device and the terminal device can be collectively referred to as a communication apparatus. 110a and 110b in FIG. 1 can be referred to as a communication apparatus with a network device function, and 120a-120j in FIG. 1 can be referred to as a communication apparatus with a terminal device function.

[0096] It should be noted that the communication system described in the embodiments of the present application is used to more clearly illustrate the technical solutions of the embodiments of the present application, and does not limit the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0097] Next, the technical features related to the present application are introduced.

[0098] A mobile communication system is usually designed, deployed and managed in a base station centric manner in a physical layer, as shown in FIG. 2. Two network devices and three terminal devices are taken as examples in FIG. 2. The two network devices are denoted as network device 1 and network device 2, and the three terminal devices are denoted as terminal device 1, terminal device 2 and terminal device 3. The base station centric manner can be understood as that: a terminal device initially accesses a cell provided by a network device, and the network device configures the terminal device with related information of the cell and related information of neighboring cells of the cell; or the base station centric manner can also be understood as that: a network device configures a terminal device with resources in a unit of a cell, and the resources are only used in the cell and usually need to be reconfigured in other cells. Alternatively, the base station centric manner can also be referred to as a network device centric manner, or a cell centric manner, and is not limited in this regard.

[0099] The base station centric manner can reduce the processing complexity of a network device, and is beneficial to multiplexing of frequency or reference signal resources between different network devices, but the user experience is easily affected by the distance between a user terminal and a network device. For example, referring to terminal device 1 shown in FIG. 2, the terminal device 1 is located in the center of a cell and is close to network device 1, the signal-to-noise ratio of a communication link between the terminal device 1 and the network device 1 is high, the interference is small, and the user experience is good. For another example, referring to terminal device 2 shown in FIG. 2, the terminal device 2 is located at the edge of a cell and is far away from network device 1, the signal-to-noise ratio of a communication link between the terminal device 2 and the network device 1 is low, the interference is large, and the user experience is poor.

[0100] Referring to terminal device 3 shown in FIG. 2, the terminal device 3 is in a moving state, can move from a cell provided by network device 2 to a cell provided by network device 1, triggers a cell handover procedure, and can cause problems such as a decrease in communication quality, a communication interruption and the like, and also affects the user experience. During the cell handover procedure, a terminal device and a network device need to perform complicated signaling interaction for mobility management and updating, which is not conducive to energy saving of the terminal device and the network device. In addition, the terminal device also needs to periodically perform synchronization operations, measurement operations and the like, which is also not conducive to energy saving of the terminal device and the network device. Alternatively, the measurement operation can include but is not limited to at least one of the following: a measurement related to cell handover, a sensing measurement or a channel measurement.

[0101] In order to improve the problem of the cell edge in the base station centric network structure, the concept of user centric no cell (UCNC) is proposed in the development process of the mobile communication system. Alternatively, the user centric no cell can also be referred to as user centric. The concept of user centric is that the user is centered, and the cell switching process is triggered as little as possible or as few as possible, as shown in FIG. 3. Two network devices and two terminal devices are taken as examples in FIG. 3. Among them, the two network devices are denoted as network device 1 and network device 2, and the two terminal devices are denoted as terminal device 1 and terminal device 2. In an embodiment, the UCNC architecture can realize user centric through hyper cell, that is, the frequency resources of multiple cells and the specific format of signals to be transmitted and received by the user terminal are aligned, so that the user does not feel the cell switching to a certain extent. Essentially, the network device side still needs to perform tedious mobility management and update. The hyper cell is equivalent to enlarging the concept of the cell, and the number of users to be served by the system is increased. Usually, the reference signal sequences and other sequence resources allocated to different user terminals are different, resulting in insufficient reference signal sequences and other sequence resources.

[0102] In the UCNC architecture, although the user does not feel the cell switching to a certain extent, tedious mobility management and update still need to be performed, which is not conducive to the energy saving of the terminal device and the network device. For example, the terminal device and the network device need to frequently perform synchronization, measurement, configuration and other mobility management and update, which is not conducive to the energy saving of the terminal device and the network device.

[0103] With the development of mobile communication technology, wireless services are increasingly growing and rich, and the demand of users for communication performance is also rising. For example, in the aforementioned base station centric or UCNC architecture, when the terminal device moves between multiple cells, it needs to perform tedious mobility management and update, and frequently performs synchronization, measurement, configuration and other operations, which affects the user experience and makes the power consumption of the terminal device and the network device high. The high power consumption of the terminal device and the network device affects the communication performance and is not conducive to energy saving. Therefore, how to improve the communication performance is a current research direction.

[0104] In view of this, the embodiments of the present application provide a communication method and device for improving the communication performance. Among them, the method and device described in the present application are based on the same technical concept. Since the principles of the methods and devices for solving problems are similar, the implementation of the device and the method can be mutually referred to, and the repeated parts will not be described again.

[0105] Before introducing the communication method provided by the embodiments of the present application, the related terms involved in the embodiments of the present application are explained below. When not specifically explained, these explanations are to support the meaning of the related terms and make the embodiments of the present application easier to understand, and should not be regarded as strict limitation on the related terms in the protection scope claimed by the present application.

[0106] 1、first transmission mode and second transmission mode

[0107] The embodiments of the present application provide a transmission mode, which is referred to as a first transmission mode. The first transmission mode can be understood as a mode in which a terminal device communicates with network devices corresponding to a plurality of cells through fixed resources in the plurality of cells; or can also be understood as a mode in which a terminal device communicates with network devices corresponding to a plurality of cells through fixed resources in an area covered by the network devices. Optionally, the network device corresponding to a cell can be understood as that the cell is provided by the network device. The plurality of cells can correspond to one network device, or can correspond to a plurality of network devices, which is not limited. For example, the network devices corresponding to the plurality of cells can be referred to as M network devices, and M is an integer greater than or equal to 1. The area covered by the M network devices can be understood as a geographical range covered by the M network devices, or can also be understood as a logical range covered by the M network devices, which is not limited. For the sake of brevity, the area covered by the M network devices is referred to as a first area in the following description.

[0108] Optionally, the first transmission mode can also be referred to as a first communication mode, a first mode, a meta mode, a meta transmission mode, a dedicated mode, a dedicated transmission mode, a green light area mode, or a green light area transmission mode, etc. The naming of the first transmission mode is not limited by the embodiments of the present application.

[0109] It can be understood that the communication method provided by the embodiments of the present application can be applied to a scenario of a plurality of cells, or can be applied to a scenario of one cell. The implementation process in the scenario of one cell can be referred to the implementation process in the scenario of a plurality of cells.

[0110] Optionally, the fixed resource can be understood as a resource consistent in the multiple cells or the first area, or a resource without reconfiguration in the multiple cells or the first area, etc. For example, the fixed resource is configured to be the same in the multiple cells, or the fixed resource is shared by the multiple cells, or the fixed resource is configured to be unchanged in the multiple cells. For example, the fixed resource can be configured to be used by at least one terminal device, and the at least one terminal device can communicate with the network device corresponding to the multiple cells through the fixed resource. Optionally, the fixed resource can also be referred to as a meta resource, etc., and the naming of the fixed resource in the embodiments of the present application is not limited. For example, the fixed resource can include a sequence resource, or include a physical resource, or include a sequence resource and a physical resource.

[0111] The second transmission mode is different from the first transmission mode. For example, the second transmission mode can be understood as a transmission mode other than the first transmission mode. For example, the second transmission mode can be a base station-centered transmission mode. For another example, the second transmission mode can be a transmission mode in a single cell scenario. Optionally, the second transmission mode can also be referred to as a second communication mode, a second mode, a non-green light area mode, a non-green light area transmission mode, or a scheduled transmission mode, etc., and the naming of the second transmission mode in the embodiments of the present application is not limited.

[0112] 2, sequence resource and physical resource

[0113] The embodiments of the present application provide a sequence resource, which can include (or indicate) at least one sequence. For example, the sequence resource can include but is not limited to at least one of the following: a random access sequence, a synchronization (SYNC) sequence, a paging sequence, a reference signal (RS) sequence, a sequence for generating a wake up signal (WUS), a sequence for generating a hybrid automatic repeat request (HARQ) signal, or a sequence for generating data. Optionally, the sequence resource can also be referred to as a sequence set, a sequence resource pool, or a sequence pool, etc., and the naming of the sequence resource in the embodiments of the present application is not limited.

[0114] It can be understood that the synchronization sequence, the paging sequence, the random access sequence, the reference signal sequence, the sequence for generating the wake up signal, the sequence for generating the hybrid automatic repeat request signal, and the sequence for generating the data can be respectively referred to as a type of sequence.

[0115] Optionally, the reference signal sequence can include at least one of a sounding reference signal (SRS) sequence, a demodulation reference signal (DMRS) sequence, a positioning reference signal (PSR) sequence, a phase tracking reference signal (PTRS) sequence, or a channel state information-reference signal (CSI-RS) sequence, or the like. For brevity, the embodiments of the present application take the sounding reference signal as an example for description. It can be understood that in future communication systems, the sounding reference signal can still be referred to as SRS, or can be other names, which are not limited.

[0116] The embodiments of the present application provide a physical resource, which can be used to carry a sequence resource. For example, the physical resource can carry a sequence resource in multiple cells. For another example, the physical resource can carry a sequence resource in a first area. Optionally, carrying a sequence resource can be replaced by carrying at least one sequence included in the sequence resource. Optionally, the physical resource can also carry data and the like in multiple cells or the first area, which is not limited.

[0117] For example, the physical resource can occupy all bandwidth in the frequency domain and can occupy part of the time domain resource in the time domain; or the physical resource can occupy part of the bandwidth in the frequency domain and can occupy part of the time domain resource in the time domain; or the physical resource can occupy part of the bandwidth in the frequency domain and can occupy all time domain resources in the time domain. For ease of understanding, the present application takes the physical resource occupying part of the bandwidth in the frequency domain as an example. Optionally, the physical resource can also be referred to as a dedicated resource, a bandwidth part (BWP), or a dedicated BWP, and the like, and the naming of the physical resource in the embodiments of the present application is not limited. Hereinafter, the physical resource is taken as an example for description. Optionally, the meta-BWP can be referred to as meta-BWP, which is not limited. Optionally, the first transmission mode can be understood as a mode in which the terminal device and the M network devices communicate (for example, transmit a sequence resource) through the meta-BWP in multiple cells or the first area.

[0118] In one example, the meta-BWP can occupy the same frequency domain resources in different time units. For example, the meta-BWP occupies the same frequency domain resources in different time units, is continuous in the frequency domain, and is also continuous in the time domain, as shown in (1) of FIG. 4. For another example, the meta-BWP occupies the same frequency domain resources in different time units, is continuous in the frequency domain, and is discontinuous in the time domain, as shown in (2) of FIG. 4. For another example, the meta-BWP occupies the same frequency domain resources in different time units, is discontinuous in the frequency domain, and is continuous in the time domain, as shown in (3) of FIG. 4. For another example, the meta-BWP occupies the same frequency domain resources in different time units, is discontinuous in the frequency domain, and is also discontinuous in the time domain, as shown in (4) of FIG. 4.

[0119] In another example, the meta-BWP can also occupy different frequency domain resources in different time units. For example, the meta-BWP occupies different frequency domain resources in different time units, is continuous in the frequency domain, and is also continuous in the time domain, as shown in (1) of FIG. 5. For another example, the meta-BWP occupies different frequency domain resources in different time units, is continuous in the frequency domain, and is discontinuous in the time domain, as shown in (2) of FIG. 5. For another example, the meta-BWP occupies different frequency domain resources in different time units, is discontinuous in the frequency domain, and is continuous in the time domain, as shown in (3) of FIG. 5. For another example, the meta-BWP occupies different frequency domain resources in different time units, is discontinuous in the frequency domain, and is also discontinuous in the time domain, as shown in (4) of FIG. 5.

[0120] It can be understood that the meta-BWP time-frequency patterns shown in FIGS. 4 and 5 are examples and do not limit the meta-BWP time-frequency patterns.

[0121] Optionally, the meta-BWP can be divided into an uplink meta-BWP and a downlink meta-BWP. The uplink meta-BWP can be used for uplink transmission between the terminal device and the M network devices. For example, the uplink meta-BWP can occupy the same frequency domain resources in different time units, or the uplink meta-BWP can also occupy different frequency domain resources in different time units. For details, refer to the description of the meta-BWP, which will not be repeated here. The downlink meta-BWP can be used for downlink transmission between the terminal device and the M network devices. For example, the downlink meta-BWP can occupy the same frequency domain resources in different time units, or the uplink meta-BWP can also occupy different frequency domain resources in different time units. For details, refer to the description of the meta-BWP, which will not be repeated here.

[0122] Optionally, the meta-BWP time-frequency pattern can be predefined, or can also be determined based on pre-agreed information (for example, a formula, or a parameter, etc.), or can also be configured by the network device, which is not limited. For example, the network device can send configuration information of the meta-BWP to the terminal device; accordingly, the terminal device receives the configuration information of the meta-BWP from the network device. Wherein, the configuration information of the meta-BWP can be used to determine the meta-BWP time-frequency pattern. Optionally, the configuration information of the meta-BWP can be carried by a master information block (MIB); or the configuration information of the meta-BWP can also be carried by a system information block (SIB); or the configuration information of the meta-BWP can also be carried by high-layer signaling, which is not limited. Optionally, the MIB can be carried by a physical broadcast channel (PBCH). Optionally, the SIB can be carried by a physical downlink shared channel (PDSCH). Optionally, the high-layer signaling can be radio resource control (RRC) signaling, or medium access control-control element (MAC-CE) signaling, etc., which is not limited.

[0123] The time unit in the embodiments of the present application can be one or several symbols, or can also be one or several slots, or can also be one or several mini-slots, or can also be one or several sub-frames, or can also be one or several frames, etc., and the present application does not limit the implementation form of the time unit. Wherein, the plurality of time units can be continuous in time, or can be discrete, which is not limited.

[0124] 3, the first access mode and the second access mode

[0125] The embodiment of the application provides an access mode, which is referred to as a first access mode. The first access mode can be understood as an access mode corresponding to a first transmission mode. For example, a terminal device can obtain configuration information of the first transmission mode through the first access mode, and / or the terminal device can use (or access or enter) the first transmission mode through the first access mode. For example, the first access mode can be initial access, and can be used to obtain the configuration information of the first transmission mode. For another example, the first access mode can be non-initial access, and can be used to access (or enter or cut in, etc.) the first transmission mode. For another example, the first access mode can include initial access and non-initial access, and can be used to obtain the configuration information of the first transmission mode and access the first transmission mode.

[0126] Optionally, the first access mode can also be referred to as meta access or a dedicated access mode, and the naming of the first access mode in the embodiment of the application is not limited.

[0127] The second access mode is different from the first access mode. For example, the second access mode can be understood as an access mode other than the first access mode. For example, the second access mode can be an access mode corresponding to a second transmission mode. For example, the second access mode can be a base station-centered access mode.

[0128] 4, W sequence

[0129] Exemplarily, part or all of the sequences in the embodiment of the application can be generated based on a W sequence. The W sequence has low ambiguity, so that the sequence resource obtained based on the W sequence has good robustness. Based on the W sequence, more sequence resources can be obtained, which is beneficial to the expansion of sequence resources and can improve the problem of insufficient sequence resources, and provides services for more users.

[0130] The W sequence can be determined by a first length and a second length. The first length can be understood as a mapping length of the sequence, or a transmission length of the sequence, or an actual length of the sequence, or a generation length of the sequence, and the like, which is not limited. The second length can be understood as a length of the sequence in a generation period, or a length of the sequence in a complete period, and the like, which is not limited. For example, the first length is denoted as N, the second length is denoted as P, N is an integer greater than 1. P is an integer greater than 1.

[0131] Exemplarily, the W sequence can satisfy the following formula (1).

[0132] Wherein, x(n) is the W sequence, e is a constant, π is a circular constant, j is an imaginary unit, j 2= -1. n is an integer greater than 0 and less than or equal to N, or n is an integer greater than or equal to 0 and less than or equal to (N-1), N is the first length. P is the second length. p(n) can be a polynomial with the highest order d, d is an integer greater than or equal to 0. For example, p(n) can be understood as the generating polynomial of x(n).

[0133] Exemplarily, p(n) can satisfy the following formula (2). p(n) = p d n d + p d-1 n d-1 +…+ p1n + p0 Formula (2)

[0134] Wherein, p i may be referred to as the i-th order coefficient, i is an integer greater than 0 and less than or equal to d. For example, assuming d is greater than 1, p d is not 0, p d may be referred to as the highest order coefficient, p d-1 may be referred to as the second highest order coefficient, and p1may be referred to as the first order coefficient.

[0135] The sequence of the first P terms generated according to formula (1) and formula (2) is referred to as a generating period, or a complete period. Alternatively, the first length and the second length can be equal, or can also be unequal. For example, the first length and the second length are equal, i.e. N = P is equal, then the sequence in a generating period is taken for mapping. For another example, the first length is less than the second length, i.e. N < P, then the sequence of the first N terms in a generating period is taken for mapping. For another example, the first length is greater than the second length, i.e. N > P, then the sequence in a generating period and the sequence of the first (N-P) terms in a generating period are taken for mapping.

[0136] For an example, assuming P = 5, the sequence in a generating period is denoted as {x1, x2, x3, x4, x5}. If N = 5, then {x1, x2, x3, x4, x5} can be taken for mapping. Or, if N = 3, then {x1, x2, x3} can be taken for mapping. Or, if N = 7, then {x1, x2, x3, x4, x5, x1, x2} can be taken for mapping.

[0137] Alternatively, the value of the second length can be a prime number. That is, the value of P can be a prime number. Compared with the value of P being a composite number, the value of P being a prime number cannot be divided by other natural numbers, so that under the condition that d is the same and the length of the sequence satisfies certain conditions, more sequences with good autocorrelation and cross-correlation can be generated, thereby more users can be served and the capacity can be expanded.

[0138] The aforementioned d is an integer greater than or equal to 0. In an example, d = 2, i.e., the highest order term of the W sequence can be a quadratic term. Exemplarily, when d = 2, the W sequence can satisfy the following formula (3).

[0139] In another example, d = 3, i.e., the highest order term of the W sequence can be a cubic term. Exemplarily, when d = 3, the W sequence can satisfy the following formula (4).

[0140] In another example, d = 4, i.e., the highest order term of the W sequence can be a quartic term. Exemplarily, when d = 4, the W sequence can satisfy the following formula (5).

[0141] wherein Q is the number of cyclic shifts in the time domain, θ is a constant, and α, μ, γ and τ are all integers. For example, α can be an integer greater than or equal to 0 and less than or equal to (P-1). For example, μ can be an integer greater than or equal to 0 and less than or equal to (P-1). For example, γ can be an integer greater than or equal to 0 and less than or equal to (P-1). For example, τ can be an integer greater than or equal to 0 and less than or equal to (Q-1). The remaining parameters in the formula (3) to the formula (5) can be described with reference to the description of the formula (1), and will not be repeated here.

[0142] It can be understood that the above formula (3) to formula (5) are examples and are not limited thereto. For example, d can also be 1, and can also be 5 or other integers other than 2, 3 and 4. Exemplarily, the greater the value of d, the more terms of the polynomial used by the W sequence, and the greater the number of different sequences generated based on the W sequence.

[0143] 5, connected state, inactive state and idle state

[0144] 1) Connected state, which can also be referred to as RRC connected state, can be understood as a state in which an RRC connection is established between a terminal device and a network device. For example, when the terminal device is in the connected state, the terminal device has completed authentication and security negotiation with the network device, and the wireless resource has been allocated, and the terminal device can perform data and control signaling transmission with the network device.

[0145] In an example, the terminal device can enter the connected state by the following steps: step A1, the terminal device sends an RRC connection request message to the network device, and the network device receives the RRC connection request message from the terminal device; step A2, the network device sends an RRC connection confirmation message to the terminal device, and the terminal device receives the RRC connection confirmation message from the network device; step A3, the terminal device sends an RRC connection completion message to the network device, and the network device receives the RRC connection completion message from the terminal device; step A4, the network device sends an RRC configuration message to the terminal device, and the terminal device receives the RRC configuration message from the network device, the RRC configuration message including allocation of radio resources and negotiation of security parameters, etc.; and step A5, the terminal device performs corresponding configuration operations according to the RRC configuration message, completes RRC connection establishment, and enters the connected state.

[0146] It can be understood that the connected state is a relatively stable state, and once established, the terminal device and the network device can communicate for a long time. In addition, when the terminal device is in the connected state, the terminal device can periodically send an RRC connection maintenance message to the network device to maintain the stability of the connection.

[0147] 2) The inactive state, which can also be referred to as the RRC inactive state, can be understood as a state in which the RRC protocol stack is inactive. For example, when the terminal device is in the inactive state, there is no wireless signal transmission between the terminal device and the network device, which can prolong the battery life of the terminal device. For another example, when the terminal device is in the inactive state, the terminal device will not receive or send data, which can reduce the use of network resources. For another example, when the terminal device is in the inactive state, the terminal device cannot receive any messages or instructions from the network device. For another example, when the terminal device is in the inactive state, the terminal device can switch to the connected state, and the switching delay is small, and through the mutual switching of the connected state and the inactive state, the connection time and the use of network resources can be reduced.

[0148] In an example, when the terminal device is in the inactive state, the terminal device can perform at least one of the following: sending an RRC connection request message (e.g., an RRC connection request message) to request switching from the inactive state to the connected state; periodically sending an RRC connection release message (e.g., an RRC connection release message) to maintain the connection between the terminal device and the network device; periodically sending an RRC measurement report message (e.g., an RRC measurement report message) to send the measurement result of the terminal device to the network device, which is conducive to the network device obtaining a better network scheduling decision; periodically sending an RRC status message to enable the network device to obtain the status of the terminal device; or periodically sending an RRC idle message (e.g., an RRC idle message) to maintain the connection between the terminal device and the network device.

[0149] 3) The idle state, which can also be referred to as the RRC idle state, can be understood as a state in which the terminal device does not need to communicate directly with the network device. For example, when the terminal device is in the idle state, the terminal device does not establish an RRC connection with the network device and does not occupy network resources. For another example, when the terminal device is in the idle state, the terminal device can receive broadcast messages and system information, but cannot actively send information to the network device.

[0150] In an example, when the terminal device is in the idle state, the terminal device can perform at least one of the following: monitoring broadcast messages and system information to obtain information such as a cell identity, a frequency band, a system bandwidth, and a public land mobile network (PLMN); sending an RRC connection request message or sending an RRC connection release request message; or performing a timer-related operation, which can be, for example, a T300 timer, a T301 timer, or a T310 timer. For example, when the terminal device is in the idle state, the terminal device can send an RRC connection request message when the terminal device needs to establish an RRC connection with the network device. For another example, when the terminal device is in the idle state, the terminal device can send an RRC connection release request message when the terminal device needs to release an already established RRC connection.

[0151] It can be understood that when the terminal device is in the idle state, the terminal device passively receives broadcast messages and system messages, and generally cannot actively send messages to the network device except for an RRC connection request message or an RRC connection release request message. In addition, when the terminal device is in the idle state, the terminal device can ensure the stability of the RRC connection by performing a T300 timer, a T301 timer, or a T310 timer.

[0152] The communication method provided by the embodiments of the present application will be described below with reference to the drawings. The method can be applied to the communication system shown in FIG. 1 or FIG. 3, but is not limited thereto. The embodiments of the present application take the interaction between the terminal device and the first network device and the second network device as an example for description. It can be understood that the communication method provided by the embodiments of the present application can also be applied to the end-to-end communication scenarios such as V2X and D2D, and the implementation process can refer to the description of the communication between the terminal device and the network device in the following embodiments, which will not be described herein.

[0153] The first network device and the second network device belong to M network devices. Optionally, the first network device and the second network device can be the same network device, or can be two different network devices. In the absence of special description, the first network device and the second network device are taken as two different network devices in the following description.

[0154] In the absence of special description, the "terminal device" in the present application can be the terminal device itself, or can be a component (for example, a processor, a circuit, a chip, or a chip system, etc.) in the terminal device, or can be a logic module or software capable of realizing all or part of the terminal device functions. Similarly, in the absence of special description, the "first network device" in the present application can be the first network device itself, or can be a component (for example, a processor, a circuit, a chip, or a chip system, etc.) in the first network device, or can be a logic module or software capable of realizing all or part of the first network device functions. In the absence of special description, the "second network device" in the present application can be the second network device itself, or can be a component (for example, a processor, a circuit, a chip, or a chip system, etc.) in the second network device, or can be a logic module or software capable of realizing all or part of the second network device functions.

[0155] It can be understood that in the embodiments of the present application, the terminal device, the first network device or the second network device can perform part or all of the steps in the embodiments of the present application, and these steps or operations are only examples, and the embodiments of the present application can also perform other operations or various modifications of the operations. In addition, each step can be performed in a different order presented in the embodiments of the present application, and it is possible that not all the operations in the embodiments of the present application are performed.

[0156] FIG. 6 is a flow diagram of a communication method provided by an embodiment of the present application. As shown in FIG. 6, the method can include the following steps.

[0157] S601: The first network device sends a fourth message. For example, the first network device can send the fourth message to the terminal device.

[0158] The terminal device receives the fourth message. For example, the terminal device can receive the fourth message from the first network device.

[0159] S601 is an optional step, represented by a dashed line in FIG. 6. In S601, the cell corresponding to the first network device belongs to a plurality of cells, or the first network device belongs to M network devices, or the plurality of cells includes the cell corresponding to the first network device. Optionally, the fourth message can be a configuration message of the first transmission mode, that is, the fourth message carries configuration information of the first transmission mode.

[0160] The fourth message can include at least one of the following: the first identifier, information for indicating the at least one sequence, or the first resource. Optionally, the information for indicating the at least one sequence can be a sequence identifier set, a sequence identifier table, or the like. The implementation form of the information for indicating the at least one sequence is not limited in the embodiments of the present application. For example, the information for indicating the at least one sequence can be one or more sets, or one or more tables, or an identifier range, and the like.

[0161] For brevity, hereinafter, the first set is taken as an example of the information for indicating the at least one sequence. In other words, the first set is used to indicate the at least one sequence. It can be understood that in the following, the "first set" can be replaced by "at least one sequence" or "information for indicating the at least one sequence", and the "sequence indicated by the first set" can be replaced by "at least one sequence", and the "at least one sequence indicated by the first set" can be replaced by "at least one sequence". Correspondingly, the fourth message can include at least one of the first identifier, the first set, or the first resource.

[0162] The first identifier, the first set, and the first resource are described below, respectively.

[0163] (1) The first identifier can also be referred to as a UE identification (ID). The naming of the first identifier is not limited in the embodiments of the present application. The first identifier can be used to identify the terminal device in the plurality of cells; or the first identifier can be used to identify the terminal device in the first area; or the first identifier can be used to identify the terminal device in the first transmission mode; or the first identifier can be used to identify the context of the terminal device in the first transmission mode; or the first identifier can be used to identify the context of the terminal device in the first access mode; or the first identifier can be used to identify the context of the terminal device in the plurality of cells or the first area. Optionally, the context of the terminal device can include the first set and / or the first resource.

[0164] Optionally, the first identifier can be used to uniquely identify the terminal device within the plurality of cells or the first area; or the first identifier can be used to uniquely identify the terminal device in the first transmission mode; or the first identifier can be used to uniquely identify the context of the terminal device in the first transmission mode; or the first identifier can be used to uniquely identify the context of the terminal device in the first access mode; or the first identifier can be used to identify the context of the terminal device within the plurality of cells or the first area. For example, the first identifier can be a unique UE ID, which is used as an ID for scheduling the terminal device within the plurality of cells or the first area, or is used as an ID for scheduling the terminal device in the first transmission mode, or is used as an ID for scheduling the terminal device in the first access mode.

[0165] Optionally, the first identifier can also be used to identify a plurality of terminal devices. For example, the first identifier can be an identifier of a group of UEs. For example, the first identifier can be used to identify the plurality of terminal devices within the plurality of cells or the first area; or the first identifier can be used to identify the plurality of terminal devices in the first transmission mode; or the first identifier can be used to identify the context of the plurality of terminal devices in the first transmission mode; or the first identifier can be used to identify the context of the plurality of terminal devices within the plurality of cells or the first area; or the first identifier can be used to identify the context of the plurality of terminal devices in the first access mode.

[0166] Optionally, the first identifier can be used to page the terminal device within the plurality of cells or the first area.

[0167] In a possible implementation, the first identifier can be determined by a radio network temporary identity (RNTI) of the terminal device. For example, the first identifier can be an identifier obtained by extending the RNTI of the terminal device. For example, the first identifier can be referred to as an extended-RNTI (E-RNTI). For example, the length of the E-RNTI of different terminal devices can be the same or different. For example, the length of the E-RNTI can dynamically change according to the number of users using the first transmission mode within the plurality of cells or the first area. Optionally, the length of the E-RNTI that has been allocated has no effect on the length of the E-RNTI that is subsequently allocated.

[0168] In one example, the first identifier can be determined by an identifier of the first cell and an RNTI of the terminal device. For example, the first identifier comprises the identifier of the first cell and the RNTI of the terminal device. For example, the first identifier can comprise part or all of the information in the identifier of the first cell and part or all of the information in the RNTI of the terminal device. For example, the first identifier can comprise X bits of the identifier of the first cell and the RNTI of the terminal device, where X is a positive integer. The X bits can identify the terminal device in the plurality of cells without using the complete RNTI and the identifier of the cell, which is beneficial for saving transmission resources.

[0169] The first cell belongs to the plurality of cells. For example, the first cell can be a cell corresponding to the first network device, or the first cell can be an initially accessed cell, or the first cell can be a cell other than the initially accessed cell in the plurality of cells, without limitation.

[0170] In another example, the first identifier can also be determined by an identifier of the first area and an RNTI of the terminal device. For example, the first identifier comprises the identifier of the first area and the RNTI of the terminal device. For example, the first identifier can comprise part or all of the information in the identifier of the first area and part or all of the information in the RNTI of the terminal device. For example, the first identifier can comprise Y bits of the identifier of the first area and the RNTI of the terminal device, where Y is a positive integer. The Y bits can identify the terminal device in the first area without using the complete RNTI and the identifier of the area, which is beneficial for saving transmission resources. The first area is described above and will not be repeated here.

[0171] In another example, the first identifier can also be determined by an identifier of the first cell, an identifier of the first area, and an RNTI of the terminal device. For example, the first identifier comprises the identifier of the first cell, the identifier of the first area, and the RNTI of the terminal device. For example, the first identifier can comprise part or all of the information in the identifier of the first cell, part or all of the information in the identifier of the first area, and part or all of the information in the RNTI of the terminal device. For example, the first identifier can comprise Z bits of the identifier of the first cell, the identifier of the first area, and the RNTI of the terminal device, where Z is a positive integer. The Z bits can identify the terminal device in the first area and the plurality of cells without using the complete RNTI, the identifier of the cell, and the identifier of the area, which is beneficial for saving transmission resources. The first cell and the first area are described above and will not be repeated here.

[0172] Optionally, the first identifier can be configured by the first network device, or can be predefined, without limitation.

[0173] (2) A first set may be used to indicate at least one sequence. For example, the first set may include an identifier of at least one sequence. The at least one sequence belongs to the aforementioned sequence resources. For example, the at least one sequence indicated by the first set may be understood as: a sequence resource configured by the first network device for a terminal device; or as: a sequence resource configured by the first network device for a terminal device for transmission in multiple cells or a first area. Exemplarily, the at least one sequence may include at least one of the following: a random access sequence, a SYNC sequence, a paging sequence, an RS sequence, a sequence for generating WUS, a sequence for generating HARQ signals, or a sequence for generating data.

[0174] In one implementation, the first set may be associated with a first identifier. Associating the first set with the first identifier can be understood as: the identifier of at least one sequence indicated by the first set is determined by the first identifier. Accordingly, the terminal device can determine the first set based on the first identifier. Optionally, the identifiers of some or all of the sequences in the at least one sequence indicated by the first set may be determined by the first identifier.

[0175] Optionally, some or all of the sequences indicated by the first set can be sequences generated based on the W sequence, which has low ambiguity, thus making the sequences obtained based on the W sequence more robust. Furthermore, a larger number of sequences can be obtained based on the W sequence, which is beneficial for expanding sequence resources, alleviating the problem of insufficient sequence resources, and providing services to more users.

[0176] Optionally, the parameters of the W sequence used when generating part or all of the sequence may include at least one of the following: a first length, a second length, Q, θ, or at least one coefficient. Q and θ are explained in the terminology introduction and will not be repeated here. At least one coefficient can be understood as the coefficient of the polynomial or mononomial used in the W sequence. For example, if d = 2, at least one coefficient may include at least one of the following: γ or τ, as shown in formula (3). For another example, if d = 3, at least one coefficient may include at least one of the following: μ, γ, or τ, as shown in formula (4). For yet another example, if d = 4, at least one coefficient may include at least one of the following: α, μ, γ, or τ, as shown in formula (5). The descriptions of the first length, second length, Q, θ, α, μ, γ, and τ are explained in the terminology introduction above and will not be repeated here.

[0177] It is understandable that the parameters of the W sequence used for different types of sequences may differ, or be partially different. For example, the parameters of the W sequence used to generate a paging sequence are different from those used to generate a synchronization sequence. Similarly, the parameters of the W sequence used to generate a paging sequence are different from those used to generate a random access sequence. Other cases are similar and will not be listed further.

[0178] Optionally, the parameters related to the W sequence can be predefined, configured by the network device (e.g., the first network device), or some parameters can be predefined while the remaining parameters are configured by the network device (e.g., the first network device), without restriction. Optionally, the parameters related to the W sequence can be carried by the SIB, or by the MIB, or by higher-layer signaling, without restriction. The higher-layer signaling can be, for example, RRC signaling or MAC-CE signaling, without restriction.

[0179] Optionally, the first set can be configured by the first network device, or it can be predefined without restriction.

[0180] (3) A first resource can be used to carry a sequence indicated by a first set. For example, the first resource can be used to carry a sequence indicated by a first set in multiple cells or a first area. For example, the first resource belongs to the aforementioned meta-BWP. For example, the first resource can be understood as: a physical resource configured by the first network device for a terminal device to transmit sequence resources in multiple cells or a first area. Optionally, the first resource can be consistent in multiple cells or a first area; or, the first resource can be the same (or configured the same) in multiple cells or a first area; or, the first resource can remain unchanged (or its configuration remains unchanged) in multiple cells or a first area; or, the first resource does not need to be reconfigured in multiple cells or a first area; or, the first resource is shared by multiple cells or a first area. For example, the first resource can be configured for use by at least one terminal device, which can communicate with the network devices corresponding to the multiple cells through the first resource. Optionally, the first resource is a meta-BWP, or the first resource is a part of a meta-BWP.

[0181] For example, the frequency domain resources occupied by the first resource in different time units may be the same, or the frequency domain resources occupied by the first resource in different time units may be different; the first resource may be continuous in the frequency domain, or the first resource may be discontinuous in the frequency domain; the first resource may be continuous in the time domain, or the first resource may be discontinuous in the time domain. For details, please refer to the description of the meta-BWP, which will not be repeated here.

[0182] Optionally, the first resource can be configured by the first network device, or it can be predefined without restriction.

[0183] In one implementation, the first resource may be associated with a first identifier. Associating the first resource with the first identifier can be understood as the first resource being determined by the first identifier. Accordingly, the terminal device can determine the first resource based on the first identifier. Optionally, the identifiers of some or all of the resources within the first resource may be determined by the first identifier.

[0184] Optionally, the fourth message may also include other information. For example, if the sequence indicated by the first set includes at least one paging sequence, the fourth message may also include information indicating a first sub-resource, which is used to carry the at least one paging sequence indicated by the first set and belongs to the first resource. As another example, if the sequence indicated by the first set includes at least one random access sequence, the fourth message may also include information indicating a second sub-resource, which is used to carry the at least one random access sequence indicated by the first set and belongs to the first resource. Yet another example, if the sequence indicated by the first set includes at least one synchronization sequence, the fourth message may also include information indicating a third sub-resource, which is used to carry the at least one synchronization sequence indicated by the first set and belongs to the first resource.

[0185] In one possible implementation, the first network device can send a fifth message; correspondingly, the terminal device can receive the fifth message. The fifth message can be used to indicate whether the first network device supports a first transmission mode, and / or whether the first network device supports a first access method. Optionally, the fifth message can be carried by the MIB, or by the SIB, or by higher-layer signaling, without limitation. For example, the first network device can send the fifth message before sending the fourth message. In one example, the fifth message indicates that the first network device does not support the first transmission mode, and the terminal device can determine not to use the first transmission mode. For example, the fifth message indicates that the first network device does not support the first transmission mode, and the terminal device can determine to use a second transmission mode. In yet another example, the fifth message indicates that the first network device supports the first transmission mode, and the terminal device can determine to use the first transmission mode. In yet another example, the fifth message indicates that the first network device does not support the first access method, and the terminal device can determine not to use (or not to employ) the first access method. For example, the fifth message indicates that the first network device does not support the first access method, and the terminal device can determine to use (or employ) a second access method. In another example, the fifth message indicates that the first network device supports the first access method, and the terminal device can determine whether to use (or adopt) the first access method. This application embodiment describes an example where the fifth message indicates that the first network device supports the first transmission mode and / or the first access method.

[0186] Optionally, the second transmission mode can be replaced by: access (or request access, or enter, or cut in, or request cut in, etc.) second transmission mode. Optionally, the first transmission mode can be replaced by: access (or request access, or enter, or cut in, or request cut in, etc.) first transmission mode.

[0187] In one possible implementation, the first network device can send a sixth message; correspondingly, the terminal device receives the sixth message, which may include at least one of the following: identifiers of M network devices, identifiers of multiple cells, information of a first area, information indicating whether the first transmission mode is allowed, or information indicating whether the first access method is allowed. Optionally, the sixth message may be carried by an SIB, or it may also be carried by a MIB, or it may also be carried by higher-layer signaling, without limitation. For example, the first network device may send the sixth message before sending the fourth message. In one example, the first network device supports the use of the first transmission mode, and the sixth message includes information indicating that the first transmission mode is not allowed, so the terminal device can determine not to use the first transmission mode. For example, the first network device supports the use of the first transmission mode, and the sixth message includes information indicating that the first transmission mode is not allowed, so the terminal device can determine to use the second transmission mode. In yet another example, the first network device supports the use of the first transmission mode, and the sixth message includes information indicating that the first transmission mode is allowed, so the terminal device can determine to use the first transmission mode. In another example, the first network device supports the use of the first access method, and the sixth message includes information indicating that the first access method is not allowed, allowing the terminal device to determine that it will not use the first access method. For example, if the first network device supports the use of the first access method and the sixth message includes information indicating that the first access method is not allowed, the terminal device can determine that it will use the second access method. In yet another example, the first network device supports the use of the first access method and the sixth message includes information indicating that the first access method is allowed, allowing the terminal device to determine that it will use the first access method.

[0188] In one possible implementation, the terminal device can send a seventh message to the first network device; correspondingly, the first network device can receive the seventh message from the terminal device. This seventh message can be used to instruct the terminal device to use a first transmission mode, and / or to instruct the terminal device to use a first access method; alternatively, the seventh message can be used to instruct the terminal device not to use the first transmission mode, and / or to instruct the terminal device not to use the first access method. For example, if the first network device supports using the first transmission mode and / or supports using the first access method, the terminal device can send the seventh message to the first network device. For example, the terminal device can send the seventh message to the first network device before receiving the fourth message. The description of using the first transmission mode is provided above and will not be repeated here. For ease of understanding, unless otherwise specified, the following description will use the example of the seventh message instructing the terminal device to use the first transmission mode and / or the first access method.

[0189] Optionally, the seventh message, used to indicate that the terminal device does not use the first transmission mode, can be replaced by: the seventh message used to indicate that the terminal device uses the second transmission mode. Alternatively, the seventh message, used to indicate that the terminal device does not use the first access method, can be replaced by: the seventh message used to indicate that the terminal device uses the second access method. For a description of using the second transmission mode, please refer to the aforementioned relevant content, and it will not be repeated here.

[0190] Optionally, the seventh message can be used to request configuration information for the first transmission mode. The configuration information for the first transmission mode may include at least one of the following: a first identifier, a first set, or a first resource. For example, the terminal device sends the seventh message to the first network device; the first network device receives the seventh message and sends a fourth message to the terminal device based on the seventh message; correspondingly, the terminal device receives the fourth message from the first network device.

[0191] Optionally, the seventh message may be carried by RRC signaling, or the seventh message may be a random access message (or a random access request message), or the seventh message may be message 3 (Msg3), without limitation. Optionally, the seventh message being a random access message can be replaced by: the seventh message being a physical random access channel (PRACH); or it can also be replaced by: the seventh message being carried by PRACH.

[0192] In one possible implementation, after initial access is completed, or after an RRC connection is established between the terminal device and the first network device, the terminal device can send a seventh message to the first network device. This seventh message is carried by RRC signaling and is used to instruct the terminal device to use a first transmission mode, or to request configuration information for the first transmission mode. Correspondingly, the first network device can receive the seventh message from the terminal device and send a fourth message to the terminal device. For example, the first network device can send a fourth message to the terminal device based on the seventh message. In this implementation, the terminal device sends the seventh message to the first network device after initial access is completed, or after the RRC connection is established, without requiring changes to the initial access procedure, making it easy to implement.

[0193] In another possible implementation, during the initial access process, the terminal device may send a seventh message to the first network device; correspondingly, the first network device receives the seventh message from the terminal device. This seventh message can be a random access message or Msg3. The seventh message is used to instruct the terminal device to use a first transmission mode (or first access method), or to instruct the terminal device not to use the first transmission mode (or first access method).

[0194] For example, the first network device can determine whether to send the fourth message based on the seventh message; or, the first network device can determine whether to send configuration information for the first transmission mode or configuration information for the second transmission mode based on the seventh message. Here, determining to send configuration information for the first transmission mode can be replaced by determining to send the fourth message. For example, if the seventh message instructs the terminal device to use the first transmission mode (or the first access method), the first network device can determine to send configuration information for the first transmission mode, i.e., determine to send the fourth message. As another example, if the seventh message instructs the terminal device not to use the first transmission mode (or the first access method), the first network device can determine not to send configuration information for the first transmission mode, i.e., determine not to send the fourth message. Yet another example, if the seventh message instructs the terminal device to use the second transmission mode (or the second access method), the first network device can determine to send configuration information for the second transmission mode. It is understood that the implementation process of the configuration information for the second transmission mode in this application embodiment is not limited.

[0195] In one implementation, the seventh message is a random access message, and the first network device can determine whether to send a fourth message based on the resources occupied by the seventh message and / or the sequence used to generate the seventh message. Optionally, the fourth message can be a random access response message.

[0196] In one example, the seventh message may be carried by a second resource, whereby the sixth message instructs the terminal device to use the first transmission mode and / or instructs the terminal device to use the first access method; alternatively, the seventh message may be carried by a third resource, whereby the seventh message instructs the terminal device not to use the first transmission mode and / or instructs the terminal device not to use the first access method. Accordingly, if the seventh message is carried by a second resource, the first network device may determine to send a fourth message; or, if the seventh message is carried by a third resource, the first network device may determine not to send a fourth message.

[0197] Optionally, the seventh message, carried by a third resource, indicating that the terminal device does not use the first transmission mode, can be replaced by: the seventh message, carried by a third resource, indicating that the terminal device uses the second transmission mode. Alternatively, the seventh message, carried by a third resource, indicating that the terminal device does not use the first access method, can be replaced by: the seventh message, carried by a third resource, indicating that the terminal device uses the second access method. Accordingly, with the seventh message carried by the third resource, the first network device can determine the configuration information for sending the second transmission mode.

[0198] The second resource differs from the third resource. The second resource may include time-domain resources and / or frequency-domain resources, without limitation. The third resource may include time-domain resources and / or frequency-domain resources, without limitation. Optionally, the second resource may be predefined or configured by a network device (e.g., the first network device), without limitation. For example, the second resource may be carried by an SIB, or by a MIB, or by higher-layer signaling, without limitation. Similarly, the third resource may be predefined or configured by a network device (e.g., the first network device), without limitation. For example, the third resource may be carried by an SIB, or by a MIB, or by higher-layer signaling, without limitation.

[0199] In another example, the seventh message may be generated based on the second sequence, which instructs the terminal device to use the first transmission mode and / or instructs the terminal device to use the first access method; or, the seventh message may be generated based on the third sequence, which instructs the terminal device not to use the first transmission mode and / or instructs the terminal device not to use the first access method. Accordingly, if the seventh message is generated based on the second sequence, the first network device may determine to send the fourth message; or, if the seventh message is generated based on the third sequence, the first network device may determine not to send the fourth message.

[0200] Optionally, the seventh message, generated based on the third sequence, indicating that the terminal device does not use the first transmission mode, can be replaced by: the seventh message, generated based on the third sequence, indicating that the terminal device uses the second transmission mode. Alternatively, the seventh message, generated based on the third sequence, indicating that the terminal device does not use the first access method, can be replaced by: the seventh message, generated based on the third sequence, indicating that the terminal device uses the second access method.

[0201] The second sequence differs from the third sequence. Optionally, the second sequence can be predefined or configured by a network device (e.g., the first network device), without restriction. For example, the second sequence can be carried by an SIB, a MIB, or higher-layer signaling, without restriction. Similarly, the third sequence can be predefined or configured by a network device (e.g., the first network device), without restriction. For example, the third sequence can be carried by an SIB, a MIB, or higher-layer signaling, without restriction.

[0202] In another implementation, the seventh message is Msg3. The first network device can determine whether to send the fourth message based on the resources occupied by the seventh message and / or the scrambling information of the seventh message. The implementation process of the first network device determining whether to send the fourth message based on the resources occupied by the seventh message is described above and will not be repeated here.

[0203] In one example, the seventh message may be scrambled based on the first information. This seventh message is used to instruct the terminal device to use the first transmission mode and / or to instruct the terminal device to use the first access method. For example, the seventh message is Msg3, and the cyclic redundancy check (CRC) of Msg3 is scrambled by the first information; or, the information portion of Msg3 is scrambled by the first information. This Msg3 can be used to instruct the terminal device to use the first transmission mode and / or to instruct the terminal device to use the first access method. Alternatively, the seventh message may be scrambled based on the second information. This seventh message is used to instruct the terminal device not to use the first transmission mode and / or to instruct the terminal device not to use the first access method. For example, the seventh message is Msg3, and the CRC of Msg3 is scrambled by the second information; or, the information portion of Msg3 is scrambled by the second information. This Msg3 can be used to instruct the terminal device not to use the first transmission mode and / or to instruct the terminal device not to use the first access method. Accordingly, if the seventh message is scrambled based on the first information, the first network device can determine to send the fourth message; or, if the seventh message is scrambled based on the second information, the first network device can determine not to send the fourth message.

[0204] Optionally, the seventh message, scrambled based on the first information and used to indicate that the terminal device does not use the first transmission mode, can be replaced by: the seventh message, scrambled based on the first information and used to indicate that the terminal device uses the second transmission mode. Alternatively, the seventh message, scrambled based on the second information and used to indicate that the terminal device does not use the first access method, can be replaced by: the seventh message, scrambled based on the second information and used to indicate that the terminal device uses the second access method.

[0205] The first information and the second information are different. For example, the first information and the second information can be different RNTIs, without restriction. Optionally, the first information can be predefined or configured by the network device (e.g., the first network device), without restriction. For example, the first information can be carried by the SIB, or by the MIB, or by higher-layer signaling, without restriction. Optionally, the second information can be predefined or configured by the network device (e.g., the first network device), without restriction. For example, the second information can be carried by the SIB, or by the MIB, or by higher-layer signaling, without restriction.

[0206] In the above implementation, the terminal device sends a seventh message to the first network device during the initial access process, reusing the random access message or Msg3 in the initial access process, so that the first network device configures the terminal device with a first transmission mode, which can reduce signaling interaction and thus reduce the consumption of transmission resources.

[0207] In one possible implementation, the first network device can send an eighth message to the terminal device; correspondingly, the terminal device can receive the eighth message from the first network device. For example, the first network device can send the eighth message to the terminal device before receiving the seventh message. The eighth message may include information related to the first access method. For example, the eighth message may include at least one of the following: a second resource, a second sequence, or third information. Optionally, the eighth message may also include information related to the second access method. For example, the eighth message may also include at least one of the following: a third resource, a third sequence, or fourth information. Optionally, the eighth message may be carried by an SIB, or by a MIB, or by higher-layer signaling, without limitation.

[0208] In one possible implementation, the terminal device can communicate with at least one of the M network devices (not shown in Figure 6) according to a fourth message. Optionally, the at least one network device includes a first network device, meaning the terminal device can communicate with the first network device according to the fourth message. Figure 6 illustrates an example of the terminal device communicating with a second network device among the M network devices. The second network device and the first network device can be the same network device, or they can be two different network devices. Figure 6 illustrates an example where the second network device and the first network device are two different network devices.

[0209] S602: The terminal device determines the first sequence.

[0210] Step S602 is optional and is represented by a dashed line in Figure 6. For example, the terminal device can determine the first sequence based on the first set. For example, the terminal device can determine the first sequence based on the first identifier, without limitation. The implementation process of the terminal device determining the first sequence based on the first identifier can refer to the description of the terminal device determining at least one random access sequence based on the first identifier, and will not be repeated here.

[0211] The first sequence belongs to the sequence indicated by the first set. This first sequence can be any of the following: a random access sequence, a SYNC sequence, a paging sequence, an RS sequence, a sequence used to generate WUS, a sequence used to generate HARQ signals, or a sequence used to generate data. Optionally, the first sequence can be generated based on the W sequence, which will be described in the preceding terminology description and will not be repeated here.

[0212] Figure 6 illustrates an example of a terminal device determining a first sequence based on a first set. This application does not limit the implementation method of the terminal device determining the first sequence.

[0213] S603: The second network device determines the first sequence.

[0214] S603 is an optional step, indicated by dashed lines in Figure 6. For example, the second network device can determine the first sequence based on the first set. Alternatively, the second network device can determine the first sequence based on the first identifier, without limitation. Wherein, the cell corresponding to the second network device belongs to multiple cells, or the second network device belongs to M network devices, or multiple cells include the cell corresponding to the second network device.

[0215] In one possible implementation, the second network device and the first network device are two different network devices. The second network device can obtain the configuration information of the terminal device in the first transmission mode by interacting with the first network device, namely at least one of the first identifier, the first set, or the first resource. It is understood that the embodiments of this application do not limit the implementation method of the second network device obtaining the configuration information of the terminal device in the first transmission mode. For example, the second network device can also obtain the configuration information of the terminal device in the first transmission mode from a management device. The management device can be used to maintain (or manage) the configuration information of at least one terminal device in the first transmission mode, and the at least one terminal device includes the terminal device. For example, the first network device can send the configuration information of the terminal device in the first transmission mode to the management device; correspondingly, the management device can receive the configuration information of the terminal device in the first transmission mode from the first network device and store it. The embodiments of this application do not limit the specific implementation form of the management device.

[0216] Figure 6 illustrates an example of a second network device determining a first sequence based on a first set. This application does not limit the implementation method of the second network device determining the first sequence.

[0217] S604: The second network device transmits the first signal to the terminal device.

[0218] The first signal is generated based on a first sequence. This first sequence is carried by a first resource. For example, the first signal is transmitted between a second network device and a terminal device via the first resource. Optionally, the generation of the first signal based on the first sequence can be understood as: the first signal is obtained by mapping the first sequence onto the first resource; or it can also be understood as: the first signal is obtained by encoding the first sequence and then mapping it onto the first resource. For example, if the first sequence is a paging sequence, the first signal can be obtained by directly mapping the first sequence onto the first resource.

[0219] The transmission of the first signal between the second network device and the terminal device can be as follows: the terminal device sends the first signal to the second network device; the second network device receives the first signal from the terminal device; or it can be as follows: the second network device sends the first signal to the terminal device; the terminal device receives the first signal from the second network device. For example, the first sequence is any of the following: a SYNC sequence, a paging sequence, an RS sequence, a sequence for generating WUS, a sequence for generating HARQ signals, or a sequence for generating data; the second network device sends the first signal to the terminal device; and correspondingly, the terminal device receives the first signal from the second network device. As another example, the first sequence is any of the following: a random access sequence, an RS sequence, a sequence for generating HARQ signals, or a sequence for generating data; the terminal device sends the first signal to the second network device; and correspondingly, the second network device receives the first signal from the terminal device.

[0220] Optionally, the first sequence does not include the synchronization sequence indicated by the first set. The terminal device and the second network device can transmit the first signal in a synchronous mode or an asynchronous mode. For example, before transmitting the first signal, the terminal device and the second network device can synchronize using the synchronization sequence indicated by the first set. The implementation process can be found in S602 to S604 and will not be repeated here. Alternatively, before transmitting the first signal, the terminal device and the second network device can also synchronize using a synchronization signal block (SSB).

[0221] In one possible implementation, the first sequence can be a sequence used to generate data; that is, the first signal carries data, which can be based on a grant-based (GB) transmission or on a grant-free (GF) transmission. Optionally, the second network device can send a third message to the terminal device; correspondingly, the terminal device receives the third message. The third message can be used to instruct the terminal device to send or receive the first signal, i.e., to send or receive the data. In other words, the third message can be used to schedule the transmission of the data. For example, prior to S604, the second network device can send the third message to the terminal device.

[0222] In this embodiment, the state of the terminal device may include a first state. Optionally, the state of the terminal device may further include at least one of the following: connected state, inactive state, or idle state. The connected state, inactive state, and idle state are explained in the foregoing terminology description and will not be repeated here. The first state can be understood as the state corresponding to the first transmission mode. For example, when the terminal device is in the first state, it can communicate with a third network device through a first resource in multiple cells or a first area; or, when the terminal device is in the first state, it can communicate with the third network device through the first transmission mode. For example, when the terminal device is in the first state, it can execute the content of S604. The third network device belongs to M network devices. For example, the third network device is any one of the M network devices. Optionally, the third network device can be the first network device, or it can be the second network device, or it can be any of the M network devices other than the first and second network devices. Optionally, communicating with the third network device can be replaced by transmitting the sequence indicated by the first set to the third network device.

[0223] Optionally, when the terminal device is in the first state, it can also execute the content of S602. Optionally, when the terminal device is in the first state, it can also execute the content of S601. Figure 6 illustrates an example of the terminal device executing S601, S602, and S604 when it is in the first state.

[0224] Optionally, the first state may also be called a dedicated state or a meta-state, etc. The naming of the first state is not limited in the embodiments of this application.

[0225] In one possible implementation, the first state can reuse the RRC state. For example, the first state may include at least one of the following: connected state, inactive state, or idle state. For instance, if the first state is connected, then when the terminal device is in connected state, it can communicate with a third network device in multiple cells or within a first area using the first resource. Similarly, if the first state is inactive, then when the terminal device is inactive, it can communicate with a third network device in multiple cells or within a first area using the first resource. Again, if the first state is idle, then when the terminal device is idle, it can communicate with a third network device in multiple cells or within a first area using the first resource. Furthermore, if the first state includes both connected and inactive states, then when the terminal device is in connected or inactive state, it can communicate with a third network device in multiple cells or within a first area using the first resource. Other cases follow the same logic and will not be listed individually. In this implementation, the first state can reuse the RRC state without the need to define a new state. When the terminal device is in the reused RRC state, there is no need for cumbersome mobility management and updates, which can reduce the interaction between the network device and the terminal device, thereby helping to reduce the power consumption of the network device and the terminal device.

[0226] In another possible implementation, the first state can be a new state. For example, the first state can be a state other than the connected state, inactive state, and idle state. Optionally, the first state can be a new RRC state. For example, the first state can be an RRC dedicated state. The naming of the first state is not limited in this embodiment.

[0227] In one implementation, the first state is associated (or bound) to at least one of the connected state, inactive state, or idle state, as shown in (1) of Figure 7. Figure 7 (1) illustrates an example where the first state is associated with all three states: connected, inactive, and idle. Bidirectional arrows in Figure 7 indicate switching between states. The association of the first state with at least one of the connected, inactive, or idle states can be understood as: at least one of the connected, inactive, or idle states supports the first state; or it can be understood as: the terminal device also enters the first state when entering at least one of the connected, inactive, or idle states; or it can be understood as: the terminal device activates (or starts, or wakes up) the first state when entering at least one of the connected, inactive, or idle states. For example, the first state is associated with the connected state, so when the terminal device enters the connected state, it also enters the first state (or activates the first state, or wakes up the first state). Another example is the association of the first state with the inactive state, so when the terminal device enters the inactive state, it also enters the first state (or activates the first state, or wakes up the first state). For example, the first state is associated with the idle state; when the terminal device enters the idle state, it also enters the first state (either activating or waking up the first state). Another example is that the first state is associated with both the connected and inactive states; when the terminal device enters either the connected or inactive state, it also enters the first state (either activating or waking up the first state). Other cases follow the same logic and will not be listed individually. In this embodiment, the first state is a new state and is associated with at least one of the connected, inactive, or idle states. When the terminal device is in the RRC state associated with the first state, there is no need for cumbersome mobility management and updates, which reduces the interaction between the network device and the terminal device, thereby helping to reduce the power consumption of both the network device and the terminal device.

[0228] Optionally, the association information can be predefined or configured by the network device (e.g., the first network device), without limitation. This association information can be used to indicate that the first state is associated with at least one of the connected state, inactive state, or idle state. Optionally, this association information can be carried by a system message or by higher-layer signaling, without limitation.

[0229] In another implementation, the first state can switch between the connected state, the inactive state, and the idle state, as shown in (2) of Figure 7. Optionally, the switching between the first state and the connected state, the inactive state, and the idle state can be achieved by signaling or by a timer, without limitation. In this implementation, the first state is a new state that can be switched between the connected state, the inactive state, and the idle state, which is beneficial for adapting to a wide range of communication scenarios and has good compatibility.

[0230] In one example, a third network device may send a first message to a terminal device; correspondingly, the terminal device receives the first message from the third network device. This first message may be used to instruct the terminal device to enter a first state; or, it may be used to instruct the terminal device to switch from a second state to the first state. The second state may be a connected state, an inactive state, or an idle state. For example, the third network device may send the first message to the terminal device before transmitting the first signal.

[0231] In another example, a third network device may send a second message to a terminal device; correspondingly, the terminal device receives the second message from the third network device. This second message may be used to instruct the terminal device to enter a third state; or, it may be used to instruct the terminal device to switch from a first state to a third state. The third state may be a connected state, an inactive state, or an idle state. For example, after transmitting the first signal, the third network device may send the second message to the terminal device.

[0232] In another example, the terminal device can switch from the second state to the first state if a first condition is met. The first condition may include the expiration of a timer corresponding to the second state. The second state can be a connected state, an inactive state, or an idle state. For example, if the timer corresponding to the second state expires before transmitting the first signal, the terminal device can switch from the second state to the first state. Optionally, the timer corresponding to the connected state, the timer corresponding to the inactive state, and the timer corresponding to the idle state can be the same, different, or partially the same, without limitation.

[0233] In another example, the terminal device can switch from the first state to the third state if the second condition is met. The second condition includes the expiration of the timer corresponding to the first state. The third state can be a connected state, an inactive state, or an idle state. For example, after transmitting the first signal, if the timer corresponding to the first state expires, the terminal device can switch from the first state to the third state.

[0234] It is understood that the execution order of the steps shown in Figure 6 is an example and is not limited thereto. For example, the terminal device may determine the first sequence first, and then the second network device may determine the first sequence; or, the second network device may determine the first sequence first, and then the terminal device may determine the first sequence, that is, S603 may be executed first, and then S602 may be executed; or, the terminal device and the second network device may determine the first sequence simultaneously, without restriction.

[0235] In the method embodiment shown in Figure 6, when the terminal device is in the first state, the terminal device can transmit multiple types of sequences through the first resource, which can simplify the resource configuration process and improve communication performance.

[0236] The embodiments provided in this application describe the methods provided by the embodiments of this application from the perspective of interaction between multiple communication devices (e.g., terminal devices and first network devices). The steps performed by the communication devices (e.g., terminal devices or first network devices) can be implemented by different functional entities that make up the communication devices. The communication devices (e.g., terminal devices or first network devices) may include hardware structures and / or software modules, implementing the above functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Whether a particular function is implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules depends on the specific application and design constraints of the technical solution.

[0237] The communication device used to implement the above method in the embodiments of this application is described below with reference to the accompanying drawings. Therefore, the content above can be used in subsequent embodiments, and repeated content will not be described again.

[0238] Figure 8 illustrates a schematic diagram of a communication device 800. This communication device 800 can implement the functions or steps performed by the terminal device or the first network device in the various method embodiments described above.

[0239] For example, when the communication device 800 is used to implement the functions or steps implemented by the terminal device in the above method embodiments, the communication device 800 may be the terminal device or a component in the terminal device.

[0240] For example, when the communication device 800 is used to implement the functions or steps implemented by the first network device in the above method embodiments, the communication device 800 may be the first network device or a component in the first network device (such as DU and / or RU, etc.).

[0241] In one embodiment, the communication device 800 may include a processing module 801 and a transceiver module 802; or it may include a processing module 801 but not a transceiver module 802; or it may include a transceiver module 802 but not a processing module 801. Wherein:

[0242] The processing module 801 can be used to support the communication device 800 in performing the processing actions in the above method embodiments. The processing module 801 can be implemented using one or more processors. For example, the processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), microprocessors (MCUs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0243] In this application, the processing module 801 may also be referred to as a processing unit, etc., without limitation.

[0244] Transceiver module 802 is used for inputting and / or outputting information. Input information can be replaced by received information, and output information can be replaced by transmitted information. When outputting information, transceiver module 802 can output information to other devices outside of communication device 800, or to other units within communication device 800. In some embodiments, transceiver module 802 can be implemented through at least one of a physical interface, a communication module, a communication interface, and an input / output interface. In other embodiments, transceiver module 802 can be implemented through interface circuitry, such as a mobile communication module. The mobile communication module may include one or more of at least one antenna, at least one filter, a switch, a power amplifier, and a low-noise amplifier (LNA).

[0245] Optionally, the transceiver module 802 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiments. The receiving module is used to perform the receiving operation in the above method embodiments. It should be noted that the communication device 800 may include a sending module but not a receiving module. Alternatively, the communication device 800 may include a receiving module but not a sending module. Specifically, it depends on whether the above scheme performed by the communication device 800 includes sending and receiving actions.

[0246] In this application, the transceiver module 802 may also be referred to as a communication interface, a communication module, a transceiver unit, an interface module, an interface unit, or a communication unit, etc., without limitation.

[0247] It should be noted that the communication device 800 may include a processing module 801, but not a transceiver module 802. Alternatively, the communication device 800 may include a transceiver module 802, but not a processing module 801. Specifically, it depends on whether the above-described scheme executed by the communication device 800 includes processing and transceiver actions.

[0248] Optionally, the communication device 800 may further include a storage module, not shown in FIG8. The storage module may be used to store instructions and / or data, and the processing module 801 may read the instructions and / or data in the storage module to enable the communication device 800 to implement the aforementioned method embodiment.

[0249] Optionally, the communication device 800 may be a chip system, the transceiver module 802 may be the input / output interface of the chip (e.g., a baseband chip), and the processing module 801 may be the processor of the chip system.

[0250] In one possible design, when the communication device 800 is a communication equipment or a communication module within a communication equipment, the functionality of the processing module 801 can be implemented by one or more processors. Exemplarily, the processor may include a modem chip (also known as a baseband chip), or a system-on-a-chip (SoC) chip or system-in-package (SIP) chip containing a modem core. The functionality of the transceiver module 802 can be implemented by transceiver circuitry.

[0251] In one possible design, when the communication device 800 is a circuit or chip responsible for communication functions in a communication device, such as a modem chip or a system-on-a-chip (SoC) or SIP chip containing a modem core, the function of the processing module 801 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the transceiver module 802 can be implemented by the interface circuitry or data transceiver circuitry on the aforementioned chip.

[0252] The communication device can be a terminal device or an access network device.

[0253] In the first implementation, the communication device 800 can implement the functions of a terminal device and perform the following: a processing module 801 is used to determine a first sequence, which is any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; a transceiver module 802 is used to send a first signal or to receive a first signal, the first signal being carried by a first resource, the first resource being used to carry the at least one sequence, the at least one sequence including the first sequence; the state of the terminal device includes a first state, and the terminal device is in the first state.

[0254] In one possible implementation, the transceiver module 802 is further configured to receive a fourth message from the first network device, the fourth message including at least one of the following: a first identifier for indicating information of the at least one sequence, or the first resource; wherein the first identifier is used to identify the terminal device within a plurality of cells.

[0255] In one possible implementation, the first resource is used to carry at least one sequence, which can be replaced by: the first resource being used to carry the at least one sequence within multiple cells.

[0256] In the second implementation, the communication device 800 can implement the functions of a terminal device, performing the following: a transceiver module 802 is used to receive a fourth message from a first network device, the fourth message including at least one of the following: a first identifier, used to indicate information of at least one sequence, or a first resource; wherein, the first identifier is used to identify the terminal device in multiple cells, the first resource is used to carry the at least one sequence in the multiple cells, the at least one sequence including at least one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data, the cell corresponding to the first network device belongs to the multiple cells; and the terminal device communicates with the network devices corresponding to the multiple cells according to the fourth message, the state of the terminal device including a first state, the terminal device being in the first state.

[0257] In one possible implementation, when communicating with network devices corresponding to the plurality of cells according to the fourth message, the transceiver module 802 is configured to send a first signal to the first network device or receive a first signal from the first network device. The first signal is carried by the first resource and is generated based on a first sequence. The first sequence belongs to the at least one sequence, and the first sequence is any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data.

[0258] Optionally, based on the first or second implementation described above, the first state is associated with at least one of the connected state, the inactive state, or the idle state.

[0259] Optionally, based on the first or second implementation method described above, the first state is a state other than the connected state, the inactive state, and the idle state.

[0260] Optionally, based on the first or second implementation described above, before sending or receiving the first signal, the transceiver module 802 is further configured to receive a first message, wherein the first message indicates that the terminal device enters the first state, or the first message indicates that the terminal device switches from the second state to the first state, wherein the second state is the connected state, or the second state is the inactive state, or the second state is the idle state.

[0261] Optionally, based on the first or second implementation described above, after sending or receiving the first signal, the transceiver module 802 is further configured to receive a second message, the second message indicating that the terminal device enters a third state, or the second message indicating that the terminal device switches from the first state to the third state, the third state being the connected state, or the third state being the inactive state, or the third state being the idle state.

[0262] Optionally, based on the first or second implementation described above, before sending or receiving the first signal, the processing module 801 is further configured to switch from the second state to the first state if a first condition is met, wherein the first condition includes the expiration of the timer corresponding to the second state, the second state being the connected state, or the second state being the inactive state, or the second state being the idle state.

[0263] Optionally, based on the first or second implementation described above, after sending or receiving the first signal, the processing module 801 is further configured to switch from the first state to the third state if a second condition is met, wherein the second condition includes the expiration of the timer corresponding to the first state, and the third state is the connected state, or the third state is the inactive state, or the third state is the idle state.

[0264] Optionally, based on the first or second implementation described above, the first sequence is the sequence used to generate data, and the transceiver module 802 is further configured to receive a third message, which is used to instruct the terminal device to send or receive the first signal.

[0265] Optionally, based on the first or second implementation method described above, the state of the terminal device may further include at least one of the following: connected state, inactive state, or idle state.

[0266] Optionally, based on the first or second implementation described above, the first resource occupies the same frequency domain resources in different time units, or the first resource occupies different frequency domain resources in different time units; the first resource is continuous in the frequency domain, or the first resource is discontinuous in the frequency domain; the first resource is continuous in the time domain, or the first resource is discontinuous in the time domain.

[0267] Optionally, based on the first or second implementation method described above, the first resource is consistent across multiple cells, or the first resource remains unchanged across multiple cells.

[0268] In the third implementation, the communication device 800 can implement the functions of the first network device, performing the following: a processing module 801, configured to determine a first sequence, wherein the first sequence is any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; and a transceiver module 802, configured to send a first signal to a terminal device, or to receive a first signal from a terminal device, wherein the first signal is generated based on the first sequence, the first signal is carried by a first resource, the first resource is used to carry the at least one sequence, the at least one sequence includes the first sequence, the state of the terminal device includes a first state, and the terminal device is in the first state.

[0269] In one possible implementation, the first resource is used to carry at least one sequence, which can be replaced by: the first resource being used to carry the at least one sequence in multiple cells, the multiple cells including the cell corresponding to the first network device.

[0270] In one possible implementation, the transceiver module 802 is further configured to send a fourth message to the terminal device, the fourth message including at least one of the following: a first identifier, used to indicate information of the at least one sequence, or the first resource; wherein the first identifier is used to identify the terminal device in a plurality of cells, the plurality of cells including the cell corresponding to the first network device.

[0271] In the fourth implementation, the communication device 800 can implement the functions of the first network device, performing the following: a transceiver module 802, used to send a fourth message to a terminal device, the fourth message including at least one of the following: a first identifier, used to indicate information of at least one sequence, or a first resource; wherein, the first identifier is used to identify the terminal device in multiple cells, the first resource is used to carry the at least one sequence in the multiple cells, the at least one sequence including at least one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data, the cell corresponding to the first network device belongs to the multiple cells; communicating with the terminal device according to the fourth message, the state of the terminal device including a first state, the terminal device being in the first state.

[0272] In one possible implementation, when communicating with the terminal device according to the fourth message, the transceiver module 802 is configured to send a first signal to the terminal device or receive a first signal from the terminal device, the first signal being carried by the first resource, the first signal being generated based on a first sequence, the first sequence being one of the at least one sequence, the at least one sequence including at least one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data.

[0273] Optionally, based on the third or fourth implementation method described above, the first state is associated with at least one of the connected state, the inactive state, or the idle state.

[0274] Optionally, based on the third or fourth implementation method described above, the first state is a state other than the connected state, the inactive state, and the idle state.

[0275] Optionally, based on the third or fourth implementation described above, before sending or receiving the first signal, the transceiver module 802 is further configured to send a first message to the terminal device, wherein the first message indicates that the terminal device enters the first state, or the first message indicates that the terminal device switches from the second state to the first state, wherein the second state is the connected state, or the second state is the inactive state, or the second state is the idle state.

[0276] Optionally, based on the third or fourth implementation described above, after sending or receiving the first signal, the transceiver module 802 is further configured to send a second message to the terminal device, the second message instructing the terminal device to enter a third state, or the second message instructing the terminal device to switch from the first state to the third state, the third state being the connected state, or the third state being the inactive state, or the third state being the idle state.

[0277] Optionally, based on the third or fourth implementation method described above, the first sequence is the sequence used to generate data, and the transceiver module 802 is further used to send a third message to the terminal device, the third message being used to instruct the terminal device to send or receive the first signal.

[0278] Optionally, based on the third or fourth implementation method described above, the state of the terminal device may further include at least one of the following: connected state, inactive state, or idle state.

[0279] Optionally, based on the third or fourth implementation method described above, the first resource occupies the same frequency domain resources in different time units, or the first resource occupies different frequency domain resources in different time units; the first resource is continuous in the frequency domain, or the first resource is discontinuous in the frequency domain; the first resource is continuous in the time domain, or the first resource is discontinuous in the time domain.

[0280] Optionally, based on the third or fourth implementation method described above, the first resource is consistent across multiple cells, or the first resource remains unchanged across multiple cells.

[0281] Detailed descriptions of the above-mentioned processing module 801 and transceiver module 802 can be obtained directly from the relevant descriptions in the foregoing embodiments, and will not be repeated here.

[0282] As shown in Figure 9, this application provides a schematic diagram of another communication device 900. The communication device 900 may include a processor 920, used to implement or support the communication device 900 in implementing the functions of the first network device or terminal device in the aforementioned method embodiments. For details, please refer to the detailed descriptions in the aforementioned method embodiments, which will not be repeated here. For example, the processor 920 is used to read and execute program instructions through the communication interface 910, so that the communication device 900 implements the corresponding method. The processor 920 may include one or more processors, without limitation.

[0283] It should be noted that the aforementioned functional modules can be implemented by hardware or by a combination of hardware and software, without limitation. Furthermore, when the communication device 900 includes only the processor 920, the communication device 900 can be a chip or a chip system.

[0284] For example, the communication device 900 can be a chip system. The chip system can be composed of chips or can include chips and other discrete components, without limitation.

[0285] For example, when the communication device 900 is a chip, the communication interface 910 can be the chip's input / output interface, where input corresponds to receiving operations and output corresponds to sending operations.

[0286] Optionally, the communication device 900 may further include a memory 930 for storing program instructions and / or data. The memory 930 is coupled to the processor 920. This coupling can be understood as an indirect coupling or communication connection between devices, units, or modules, and can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 920 may operate in conjunction with the memory 930; the processor 920 and the memory 930 may be integrated together or disposed separately.

[0287] Furthermore, the processor 920 is used to execute program instructions stored in the memory 930 so that the communication device 900 implements the corresponding method.

[0288] One or more of the memories in memory 930 may be included in the processor, or memory 930 may exist independently, such as off-chip memory, and be connected to processor 920 via a communication bus (represented by thick line 940 in Figure 9). Memory 930 and processor 920 may also be integrated together.

[0289] Optionally, the communication device 900 further includes a communication interface 910 (shown as dashed lines in FIG9) for communicating with other devices via a transmission medium, thereby enabling the devices in the communication device 900 to communicate with other devices.

[0290] For example, when the communication device 900 is the first communication device, other devices can be second communication devices, etc. The processor 920 can use the communication interface 910 to send and receive data. For example, the processor 920 can be used to control the communication interface 910 to receive and / or send signals.

[0291] Specifically, the communication interface 910 can be a transceiver. In terms of hardware implementation, the transceiver can be used to implement the functions of the aforementioned transceiver module 802, and the transceiver is integrated into the communication device 900 to form the communication interface 910.

[0292] Optionally, the transceiver may include a transmitter and / or a receiver to respectively implement the sending and receiving operations in the method embodiment; other operations besides sending and receiving may be implemented by the processor 920.

[0293] It should be noted that the communication interface 910 may have both sending and receiving functions, enabling the transmission and reception of signals; or it may have a sending function but no receiving function, used for transmitting signals; or it may have a receiving function but no sending function, used for receiving signals.

[0294] It should be noted that the specific connection medium between the communication interface 910, processor 920, and memory 930 is not limited in the embodiments of this application. Figure 9 shows the memory 930, processor 920, and communication interface 910 connected via a communication bus 940. The connection methods between other components are merely illustrative and not intended to be limiting. The communication bus 940 can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used in Figure 9, but this does not indicate that there is only one communication bus or one type of communication bus.

[0295] In the embodiments of this application, the processor 920 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor may be a microprocessor or any conventional processor. The methods disclosed in the embodiments of this application may be executed by the hardware in the processor, or by a combination of hardware and software in the processor.

[0296] In this embodiment, the memory 930 can be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or it can be volatile memory, such as random-access memory (RAM). The memory can also be any other medium used to carry or store program code in the form of instructions or data structures that can be accessed by a computer; or it can be a circuit or any other device capable of implementing storage functions for storing program instructions and / or data.

[0297] In a first possible implementation, the communication device 900 may be a terminal device used to implement the relevant methods corresponding to the terminal device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0298] For example, the methods corresponding to the terminal device in the above embodiments include: determining a first sequence, wherein the first sequence is any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; sending a first signal, or receiving a first signal, wherein the first signal is generated based on the first sequence, the first signal is carried by a first resource, the first resource is used to carry the at least one sequence, the at least one sequence including the first sequence; the state of the terminal device includes a first state, and the terminal device is in the first state.

[0299] In a second possible implementation, the communication device 900 may be a terminal device used to implement the methods corresponding to the terminal device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0300] For example, the methods corresponding to the terminal device in the above embodiments include: receiving a fourth message from a first network device, the fourth message including at least one of the following: a first identifier, information indicating at least one sequence, or a first resource; wherein the first identifier is used to identify the terminal device in multiple cells, the first resource is used to carry the at least one sequence in the multiple cells, the at least one sequence including at least one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data, and the cell corresponding to the first network device belongs to the multiple cells; communicating with the network devices corresponding to the multiple cells according to the fourth message, the state of the terminal device including a first state, the terminal device being in the first state.

[0301] In a third possible implementation, the communication device 900 may be a first network device, used to implement the methods corresponding to the first network device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0302] For example, the methods corresponding to the first network device in the above embodiments include: determining a first sequence, wherein the first sequence is any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; sending a first signal to a terminal device, or receiving a first signal from a terminal device, wherein the first signal is generated based on the first sequence, the first signal is carried by a first resource, the first resource is used to carry the at least one sequence, the at least one sequence includes the first sequence, the state of the terminal device includes a first state, and the terminal device is in the first state.

[0303] In a fourth possible implementation, the communication device 900 may be a first network device, used to implement the methods corresponding to the first network device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0304] For example, the methods corresponding to the first network device in the above embodiments include: sending a fourth message to a terminal device, the fourth message including at least one of the following: a first identifier for indicating information of at least one sequence, or a first resource; wherein the first identifier is used to identify the terminal device in multiple cells, the first resource is used to carry the at least one sequence in the multiple cells, the at least one sequence including at least one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data, and the cell corresponding to the first network device belongs to the multiple cells; communicating with the terminal device according to the fourth message, the state of the terminal device including a first state, the terminal device being in the first state.

[0305] For the specific implementation process, please refer to the relevant content in the aforementioned embodiments; it will not be repeated here.

[0306] Based on the same concept, referring to Figure 10, this application embodiment also provides another communication device 1000, including: an input / output interface 1010 and a logic circuit 1020; the input / output interface 1010 is used to receive code instructions and transmit them to the logic circuit 1020; the logic circuit 1020 is used to run the code instructions to execute the method executed by the terminal device or the first network device in any of the above embodiments.

[0307] In a first implementation, the communication device 1000 can be applied to a terminal device to execute the methods performed by the terminal device, specifically, for example, the methods performed by the terminal device in the aforementioned method embodiments. For example, the communication device 1000 can determine a first sequence, which is any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; send a first signal, or receive a first signal, the first signal being generated based on the first sequence, the first signal being carried by a first resource, the first resource being used to carry the at least one sequence, the at least one sequence including the first sequence; the state of the terminal device includes a first state, and the terminal device is in the first state.

[0308] In the second implementation, the communication device 1000 can be applied to a terminal device to execute the methods performed by the terminal device, specifically, for example, the methods performed by the terminal device in the aforementioned method embodiments. For example, the communication device 1000 can receive a fourth message from a first network device, the fourth message including at least one of the following: a first identifier, used to indicate information of at least one sequence, or a first resource; wherein the first identifier is used to identify the terminal device within multiple cells, the first resource is used to carry the at least one sequence within the multiple cells, the at least one sequence including at least one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data, the cell corresponding to the first network device belonging to the multiple cells; and communicating with the network devices corresponding to the multiple cells according to the fourth message, the state of the terminal device including a first state, the terminal device being in the first state.

[0309] In the third implementation, the communication device 1000 can be applied to a first network device to execute the method performed by the first network device, specifically, for example, the method performed by the first network device in the aforementioned method embodiments. For example, the communication device 1000 can determine a first sequence, which is any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; send a first signal to a terminal device, or receive a first signal from a terminal device, wherein the first signal is generated based on the first sequence, the first signal is carried by a first resource, the first resource is used to carry the at least one sequence, the at least one sequence includes the first sequence, the state of the terminal device includes a first state, and the terminal device is in the first state.

[0310] In the fourth implementation, the communication device 1000 can be applied to a first network device to execute the method performed by the first network device, specifically, for example, the method performed by the first network device in the aforementioned method embodiments. For example, the communication device 1000 can send a fourth message to a terminal device, the fourth message including at least one of the following: a first identifier for indicating information of at least one sequence, or a first resource; wherein the first identifier is used to identify the terminal device within multiple cells, and the first resource is used to carry the at least one sequence within the multiple cells, the at least one sequence including at least one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data, and the cell corresponding to the first network device belongs to the multiple cells; communication is performed with the terminal device according to the fourth message, the state of the terminal device including a first state, and the terminal device is in the first state.

[0311] For the specific implementation process, please refer to the aforementioned method implementation examples, which will not be repeated here.

[0312] This application also provides a communication system, which may include one or more of the following: a first network device or a terminal device. Optionally, the communication system may further include a second network device. The first network device or the terminal device can be referred to the descriptions in the foregoing method embodiments, and will not be repeated here.

[0313] This application also provides a computer-readable storage medium for storing computer programs or instructions. When the computer programs or instructions are run, the methods or steps executed by the first network device or terminal device in the foregoing embodiments are implemented.

[0314] This application also provides a computer program product, including a computer program that, when run on a computer, enables the methods or steps executed by the first network device or terminal device in the foregoing embodiments to be implemented.

[0315] This application provides a chip system including a processor for implementing the functions of the first network device or terminal device in the aforementioned method (e.g., executing corresponding methods or steps). The chip system may be composed of a chip or may include a chip and other discrete components.

[0316] Optionally, the chip system also includes a memory for storing program instructions that the processor can read and execute to implement the corresponding method.

[0317] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0318] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0319] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0320] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0321] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0322] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0323] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essential contributing part of the technical solution of this application, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0324] The above description is merely a specific embodiment of this application, but the protection scope of the embodiments of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of this application should be included within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

A communication method characterized by comprising: A method applied to a terminal device or an apparatus in a terminal device, a state of the terminal device comprising a first state, the terminal device being in the first state, the method comprising: determining a first sequence, the first sequence being any one of a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; transmitting or receiving a first signal, the first signal being generated based on the first sequence, the first signal being carried by a first resource, the first resource being used to carry at least one sequence, the at least one sequence comprising the first sequence. The method of claim 1, wherein The first state is associated with at least one of a connected state, an inactive state, or an idle state. The method according to claim 1 or 2, characterized in that The first state is a state other than the connected state, the inactive state, and the idle state. The method according to any one of claims 1 to 3, characterized in that The first resource is used to carry at least one sequence indication, comprising: The first resource is used to carry the at least one sequence in multiple cells. The method according to any one of claims 1 to 4, characterized in that Before transmitting or receiving the first signal, the method further comprises: receiving a first message, the first message indicating the terminal device to enter the first state, or the first message indicating the terminal device to switch from a second state to the first state, the second state being the connected state, or the second state being the inactive state, or the second state being the idle state. The method according to any one of claims 1 to 5, characterized in that After transmitting or receiving the first signal, the method further comprises: receiving a second message, the second message indicating the terminal device to enter a third state, or the second message indicating the terminal device to switch from the first state to a third state, the third state being the connected state, or the third state being the inactive state, or the third state being the idle state. The method according to any one of claims 1 to 6, characterized in that Before transmitting or receiving the first signal, the method further comprises: switching from a second state to the first state if a first condition is met, the first condition comprising a timer corresponding to the second state expiring, the second state being the connected state, or the second state being the inactive state, or the second state being the idle state. The method according to any one of claims 1 to 7, characterized in that After transmitting or receiving the first signal, the method further comprises: switching from the first state to a third state if a second condition is met, the second condition comprising a timer corresponding to the first state expiring, the third state being the connected state, or the third state being the inactive state, or the third state being the idle state. The method according to any one of claims 1 to 8, characterized in that The first sequence is the sequence for generating data, the method further comprising: receiving a third message, the third message indicating the terminal device to transmit or receive the first signal. The method according to any one of claims 1 to 9, characterized in that The method further comprises: receiving a fourth message from a first network device, the fourth message comprising at least one of a first identifier, information indicating the at least one sequence, or the first resource, the first identifier being used to identify the terminal device in multiple cells. The method according to any one of claims 1 to 10, characterized in that The state of the terminal device further includes at least one of the following: a connected state, an inactive state, or an idle state. The method according to any one of claims 1 to 11, further characterized in that, The first resource occupies the same frequency domain resource on different time units, or the first resource occupies different frequency domain resources on different time units. The first resource is continuous in the frequency domain, or the first resource is discontinuous in the frequency domain. The first resource is continuous in the time domain, or the first resource is discontinuous in the time domain. The method according to any one of claims 1 to 12, characterized in that The first resource is consistent in multiple cells, or the first resource is unchanged in multiple cells. A communication method characterized by comprising: The method is applied to a first network device or an apparatus in the first network device, and the method includes: determining a first sequence, the first sequence being any one of the following: a synchronization sequence, a paging sequence, a random access sequence, a reference signal sequence, a sequence for generating a wake-up signal, a sequence for generating a hybrid automatic repeat request signal, or a sequence for generating data; sending a first signal to a terminal device or receiving a first signal from a terminal device, wherein the first signal is generated based on the first sequence, the first signal is carried by a first resource, the first resource is used to carry at least one sequence, the at least one sequence includes the first sequence, a state of the terminal device includes a first state, and the terminal device is in the first state. The method of claim 14, wherein The first state is associated with at least one of the following: a connected state, an inactive state, or an idle state. The method according to claim 14 or 15, characterized in that The first state is a state other than the connected state, the inactive state, and the idle state. The method according to any one of claims 14 to 16, characterized in that The first resource is used to carry a sequence of at least one sequence indication, including: The first resource is used to carry the at least one sequence in multiple cells, and the multiple cells include a cell corresponding to the first network device. The method according to any one of claims 14 to 17, characterized in that Before sending or receiving the first signal, the method further includes: sending a first message to the terminal device, the first message indicating that the terminal device enters the first state, or the first message indicating that the terminal device switches from a second state to the first state, the second state being the connected state, or the second state being the inactive state, or the second state being the idle state. The method according to any one of claims 14 to 18, characterized in that After sending or receiving the first signal, the method further includes: sending a second message to the terminal device, the second message indicating that the terminal device enters a third state, or the second message indicating that the terminal device switches from the first state to a third state, the third state being the connected state, or the third state being the inactive state, or the third state being the idle state. The method according to any one of claims 14 to 19, characterized in that The first sequence is the sequence for generating data, and the method further includes: sending a third message to the terminal device, the third message indicating that the terminal device sends or receives the first signal. The method according to any one of claims 14 to 20, characterized in that The method further includes: sending a fourth message to the terminal device, the fourth message comprising at least one of the following: the first identifier, information indicating the at least one sequence, or the first resource; wherein the first identifier is used to identify the terminal device within a plurality of cells, the plurality of cells including a cell corresponding to the first network device. The method according to any one of claims 14 to 21, characterized in that The state of the terminal device further comprises at least one of the following: a connected state, an inactive state, or an idle state. The method of any one of claims 14-22, wherein The first resource occupies same frequency domain resources in different time units, or the first resource occupies different frequency domain resources in different time units. The first resource is continuous in frequency domain, or the first resource is discontinuous in frequency domain. The first resource is continuous in time domain, or the first resource is discontinuous in time domain. The method according to any one of claims 14 to 23, characterized in that The first resource is consistent within a plurality of cells, or the first resource is invariant within the plurality of cells, wherein the plurality of cells includes a cell corresponding to the first network device. A communication device, characterized by comprising a module for performing the method of any one of claims 1-13, or a module for performing the method of any one of claims 14-24. A communication device, characterized by comprising at least one processor configured to perform the method of any one of claims 1-13, or the method of any one of claims 14-24. A communication system characterized by comprising a terminal device and / or a first network device, wherein the terminal device is configured to perform the method of any one of claims 1-13, and the first network device is configured to perform the method of any one of claims 14-24. A computer-readable storage medium, characterized by, a computer program or instructions stored therein, which when executed by a computer, cause the method of any one of claims 1-13 to be implemented, or the method of any one of claims 14-24 to be implemented. A computer program product, characterized in that The computer program product comprises a computer program which, when executed on a computer, causes the method of any one of claims 1-13 to be implemented, or the method of any one of claims 14-24 to be implemented.

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