WO2025199999A1 - Communication methods, communication apparatuses, terminal, access network device and storage medium - Google Patents

Abstract

The embodiments of the present disclosure relate to communication methods, communication apparatuses, a terminal, an access network device and a storage medium. A communication method can be applied to a terminal, wherein the terminal supports a store-and-forward function. The method comprises: when a serving cell has activated a store-and-forward function, determining on the basis of the signal quality of the serving cell whether to measure a neighboring cell. Thus, in the embodiments of the present disclosure, when the terminal supports the store-and-forward function and the serving cell has activated the store-and-forward function, whether to measure the neighboring cell is determined on the basis of the signal quality of the serving cell, so that the terminal is prevented from performing unnecessary measurement, thereby reducing power consumption.

Description

Communication method, communication device, terminal, access network equipment and storage medium Technical Field

The present disclosure relates to the field of communication technology, and in particular to a communication method, a communication apparatus, a terminal, an access network device, and a storage medium.

Background Art

The evolution of telecommunications network technology has integrated non-terrestrial network (NTN) technologies and supported satellite access technology. This allows terminals to access the core network and conduct services via satellite access networks. However, due to issues such as insufficient satellite deployments and limited coverage, satellite access networks may not provide continuous satellite connectivity. This discontinuous satellite connectivity occurs when the connection between the satellite and the terminal or between the satellite and the ground station is interrupted.

Summary of the Invention

For satellite access, a regenerative architecture—where at least the base station functionality is deployed on the satellite—requires satellite support for data storage and forwarding. This allows for latency-tolerant services to be delivered even with discontinuous satellite connectivity. However, when both the satellite and the terminal support this functionality, the question of whether to measure neighboring cells remains a pressing issue.

The embodiments of the present disclosure provide a communication method, a communication apparatus, a terminal, an access network device, and a storage medium, which can prevent the terminal from performing unnecessary measurements, thereby saving power consumption.

According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by a terminal that supports a store and forward function; the method includes: when the store and forward function has been turned on in a serving cell, determining whether to measure a neighboring cell based on the signal quality of the serving cell.

According to a second aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by an access network device, and the access network device is deployed on a satellite; the method includes: sending first information, wherein the first information is used to indicate that the service cell has turned on the storage and forwarding function.

According to a third aspect of an embodiment of the present disclosure, a communication device is proposed, including: a processing module configured to determine whether to measure a neighboring cell according to a signal quality of a serving cell when a store and forward function is enabled in the serving cell.

According to a fourth aspect of an embodiment of the present disclosure, a communication device is proposed, including: a transceiver module, configured to send first information, wherein the first information is used to indicate that a serving cell has enabled a store and forward function.

According to a fifth aspect of an embodiment of the present disclosure, a terminal is provided. The terminal includes: at least one processor and a memory storing instructions. When the instructions are executed by the terminal, the terminal implements the communication method described in the first aspect.

According to a sixth aspect of an embodiment of the present disclosure, an access network device is provided. The access network device includes: at least one processor and a memory storing instructions. When the instructions are executed by the access network device, the access network device implements the communication method described in the second aspect.

According to a seventh aspect of an embodiment of the present disclosure, a communication system is provided. The communication system includes a terminal and an access network device. The terminal is configured to execute the communication method described in the first aspect, and the access network device is configured to execute the communication method described in the second aspect.

According to an eighth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the communication method as described in the first aspect or the second aspect is implemented.

According to a ninth aspect of the embodiments of the present disclosure, a computer program product is provided, which includes a computer program, and when the computer program is executed by a processor, it implements the communication method described in the first aspect or the second aspect.

According to a tenth aspect of the embodiments of the present disclosure, a computer program is provided, which, when executed on a computer, causes the computer to execute the communication method according to the first aspect or the second aspect.

According to an eleventh aspect of the embodiments of the present disclosure, a chip or a chip system is provided. The chip or chip system includes a processing circuit. The processing circuit is configured to execute the communication method described in the first aspect or the second aspect.

Through the embodiments of the present disclosure, when the terminal supports the store and forward function and the serving cell has enabled the store and forward function, whether to measure the neighboring cell is determined according to the signal quality of the serving cell, thereby avoiding unnecessary measurements of the terminal and saving power consumption.

It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and do not constitute limitations on the embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

FIG1A is a schematic diagram showing an architecture of a communication system according to an embodiment of the present disclosure.

FIG1B is a schematic diagram of a satellite communication system architecture based on transparent transmission payload according to an embodiment of the present disclosure.

FIG1C is a schematic diagram of a satellite communication system based on regenerative payload according to an embodiment of the present disclosure.

FIG2A is a schematic diagram illustrating normal or default satellite operation according to an embodiment of the present disclosure.

FIG2B is a schematic diagram illustrating the operation of a store and forward satellite according to an embodiment of the present disclosure.

FIG3A is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure.

FIG3B is another interaction diagram of the communication method provided according to an embodiment of the present disclosure.

FIG4A is a flow chart of a method for executing communication on a terminal side according to an embodiment of the present disclosure.

FIG4B is a flow chart of a method for executing communication on a terminal side according to an embodiment of the present disclosure.

FIG4C is a flow chart of a communication method executed on an access network device side according to an embodiment of the present disclosure.

FIG5A is another schematic diagram of a flow chart of a communication method executed on a terminal side according to an embodiment of the present disclosure.

FIG5B is another flowchart illustrating a communication method executed on an access network device side according to an embodiment of the present disclosure.

FIG6A is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.

FIG6B is a schematic structural diagram of a communication device provided according to an embodiment of the present disclosure.

FIG7A is a schematic structural diagram of a communication device provided in an embodiment of the present disclosure.

FIG7B is a schematic structural diagram of a chip provided in an embodiment of the present disclosure.

DETAILED DESCRIPTION

The embodiments of the present disclosure provide a communication method, a communication apparatus, a terminal, an access network device, and a storage medium.

In a first aspect, an embodiment of the present disclosure proposes a communication method, which is executed by a terminal that supports a store and forward function; the method includes: when the store and forward function has been turned on in a serving cell, determining whether to measure a neighboring cell based on the signal quality of the serving cell.

In an embodiment of the present disclosure, when the terminal supports the store and forward function and the serving cell has enabled the store and forward function, whether to measure the neighboring cell is determined according to the signal quality of the serving cell, thereby avoiding unnecessary measurements by the terminal and saving power consumption.

In some embodiments, the method further includes: when the serving cell has enabled a store and forward function, ignoring the received time information, the time information being used to instruct the terminal to measure a neighboring cell before a time indicated by the time information.

In an embodiment of the present disclosure, when the terminal supports the storage and forwarding function and the serving cell has turned on the storage and forwarding function, the terminal can ignore the received time information instructing the terminal to measure the neighboring cell before the moment indicated by the time information, that is, the terminal can determine whether to measure the neighboring cell.

In some embodiments, the time information is used to indicate one of the following: the time when the service cell provides service to the terminal; the time when the feeder link between the satellite and the ground station is switched; the time when the service link between the satellite and the terminal is switched.

In some embodiments, measuring a neighboring cell includes at least one of the following: intra-frequency measurement; inter-frequency measurement; inter-system measurement; intra-frequency cell measurement; inter-frequency cell measurement; and inter-system cell measurement.

In some embodiments, the serving cell has enabled the storage and forwarding function, and determines whether to measure the neighboring cell based on the signal quality of the serving cell, including one of the following: when time information is received and the signal quality of the serving cell is greater than a first value, determining not to measure the neighboring cell; when time information is received and the signal quality of the serving cell is less than or equal to the first value, determining to measure the neighboring cell.

In some embodiments, when time information is received and the signal quality of the serving cell is greater than a first value, determining not to measure the neighboring cell includes one of the following: when time information is received and a first parameter is greater than a first threshold value, determining not to measure the neighboring cell; when time information is received, the first parameter is greater than the first threshold value and the second parameter is greater than the second threshold value, determining not to measure the neighboring cell, the first parameter and/or the second parameter is used to represent the signal quality of the serving cell.

In some embodiments, when time information is received and the signal quality of the serving cell is less than or equal to a first value, determining to measure the neighboring cell includes one of the following: when time information is received and the first parameter is less than or equal to a first threshold value, determining to measure the neighboring cell; when time information is received, the first parameter is less than or equal to the first threshold value and the second parameter is less than or equal to the second threshold value, determining to measure the neighboring cell, the first parameter and/or the second parameter is used to represent the signal quality of the serving cell.

In some embodiments, when time information is received and the signal quality of the serving cell is greater than a first value, determining not to measure the neighboring cell includes one of the following: when time information is received and the signal quality of the serving cell is greater than the first value, determining not to measure the neighboring cell before the moment indicated by the time information; when time information is received and the signal quality of the serving cell is greater than the first value, determining not to measure the neighboring cell after the moment indicated by the time information.

In some embodiments, when time information is received and the signal quality of the serving cell is greater than a first value, it is determined not to measure the neighboring cell before the moment indicated by the time information, including one of the following: when time information is received and a first parameter is greater than a first threshold value, it is determined not to measure the neighboring cell before the moment indicated by the time information; when time information is received, the first parameter is greater than the first threshold value and the second parameter is greater than the second threshold value, it is determined not to measure the neighboring cell before the moment indicated by the time information, and the first parameter and/or the second parameter are used to represent the signal quality of the serving cell.

In some embodiments, when time information is received and the signal quality of the serving cell is greater than a first value, after the moment indicated by the time information, it is determined not to measure the neighboring cell, including one of the following: when time information is received and the first parameter is greater than a first threshold value, after the moment indicated by the time information, it is determined not to measure the neighboring cell; when time information is received, the first parameter is greater than the first threshold value and the second parameter is greater than the second threshold value, after the moment indicated by the time information, it is determined not to measure the neighboring cell, and the first parameter and/or the second parameter are used to represent the signal quality of the serving cell.

In some embodiments, the serving cell has enabled a store and forward function, and the method further includes: upon receiving the time information and when the signal quality of the serving cell is less than or equal to the first value, determining to measure a neighboring cell before the moment indicated by the time information.

In some embodiments, when time information is received and the signal quality of the serving cell is less than or equal to a first value, determining to measure the neighboring cell before the moment indicated by the time information includes one of the following: when time information is received and the first parameter is less than or equal to a first threshold value, determining to measure the neighboring cell before the moment indicated by the time information; when time information is received, the first parameter is less than or equal to the first threshold value and the second parameter is less than or equal to the second threshold value, determining to measure the neighboring cell before the moment indicated by the time information, the first parameter and/or the second parameter are used to represent the signal quality of the serving cell.

In some embodiments, the first parameter is used to indicate the received power of the serving cell; the second parameter is used to indicate the received signal quality of the serving cell.

In a second aspect, an embodiment of the present disclosure proposes a communication method, which is executed by an access network device deployed on a satellite; the method includes: sending first information, wherein the first information is used to indicate that the service cell has enabled the storage and forwarding function.

In an embodiment of the present disclosure, by sending first information indicating that the serving cell has turned on the storage and forwarding function, the terminal can receive the first information, and when the terminal supports the storage and forwarding function, it determines whether to measure the neighboring cell based on the signal quality of the serving cell, thereby avoiding unnecessary measurements of the terminal and saving power consumption.

In some embodiments, the method further includes: sending time information, wherein the time information is used to instruct the terminal to measure neighboring cells before a time indicated by the time information.

In some embodiments, the time information is used to indicate one of the following: the time when the serving cell provides service to the terminal; the time when the feeder link between the satellite and the ground station is switched; the time when the service link between the satellite and the terminal is switched.

In some embodiments, measuring a neighboring cell includes at least one of the following: intra-frequency measurement; inter-frequency measurement; inter-system measurement; intra-frequency cell measurement; inter-frequency cell measurement; and inter-system cell measurement.

In a third aspect, an embodiment of the present disclosure proposes a communication device, including: a processing module, configured to determine whether to measure a neighboring cell according to the signal quality of the serving cell when the storage and forwarding function of the serving cell is enabled.

In some embodiments, the processing module is further configured to: when the serving cell has enabled the store and forward function, ignore the received time information, where the time information is used to instruct the terminal to measure the neighboring cell before the time indicated by the time information.

In some embodiments, the time information is used to indicate one of the following: the time when the service cell provides service to the terminal; the time when the feeder link between the satellite and the ground station is switched; the time when the service link between the satellite and the terminal is switched.

In some embodiments, measuring a neighboring cell includes at least one of the following: intra-frequency measurement; inter-frequency measurement; inter-system measurement; intra-frequency cell measurement; inter-frequency cell measurement; and inter-system cell measurement.

In some embodiments, the serving cell has enabled the storage and forwarding function, and the processing module is configured to perform one of the following: when time information is received and the signal quality of the serving cell is greater than a first value, determine not to measure the neighboring cell; when time information is received and the signal quality of the serving cell is less than or equal to the first value, determine to measure the neighboring cell.

In some embodiments, the processing module is configured to perform one of the following: when time information is received and the first parameter is greater than a first threshold value, determine not to measure the neighboring cell; when time information is received, the first parameter is greater than the first threshold value and the second parameter is greater than the second threshold value, determine not to measure the neighboring cell, and the first parameter and/or the second parameter is used to represent the signal quality of the serving cell.

In some embodiments, the processing module is configured to perform one of the following: determining to measure a neighboring cell when time information is received and the first parameter is less than or equal to a first threshold value; determining to measure a neighboring cell when time information is received, the first parameter is less than or equal to the first threshold value, and the second parameter is less than or equal to a second threshold value, where the first parameter and/or the second parameter are used to represent the signal quality of the serving cell.

In some embodiments, the processing module is configured to perform one of the following: when time information is received and the signal quality of the serving cell is greater than a first value, determine not to measure the neighboring cell before the moment indicated by the time information; when time information is received and the signal quality of the serving cell is greater than the first value, determine not to measure the neighboring cell after the moment indicated by the time information.

In some embodiments, the processing module is configured to perform one of the following: when time information is received and the first parameter is greater than a first threshold value, determine not to measure the neighboring cell before the moment indicated by the time information; when time information is received, the first parameter is greater than the first threshold value and the second parameter is greater than the second threshold value, determine not to measure the neighboring cell before the moment indicated by the time information, and the first parameter and/or the second parameter are used to represent the signal quality of the serving cell.

In some embodiments, the processing module is configured to perform one of the following: when time information is received and the first parameter is greater than a first threshold value, after the moment indicated by the time information, determine not to measure the neighboring cell; when time information is received, the first parameter is greater than the first threshold value and the second parameter is greater than the second threshold value, after the moment indicated by the time information, determine not to measure the neighboring cell, and the first parameter and/or the second parameter are used to represent the signal quality of the serving cell.

In some embodiments, the serving cell has enabled the storage and forwarding function, and the processing module is further configured to: when the time information is received and the signal quality of the serving cell is less than or equal to the first value, determine to measure the neighboring cell before the moment indicated by the time information.

In some embodiments, the processing module is configured to perform one of the following: when time information is received and the first parameter is less than or equal to the first threshold value, determine to measure the neighboring cell before the moment indicated by the time information; when time information is received, the first parameter is less than or equal to the first threshold value and the second parameter is less than or equal to the second threshold value, determine to measure the neighboring cell before the moment indicated by the time information, and the first parameter and/or the second parameter are used to represent the signal quality of the serving cell.

In some embodiments, the first parameter is used to indicate the received power of the serving cell; the second parameter is used to indicate the received signal quality of the serving cell.

In a fourth aspect, an embodiment of the present disclosure proposes a communication device, including: a transceiver module, configured to send first information, wherein the first information is used to indicate that a serving cell has enabled a store and forward function.

In some embodiments, the transceiver module is further configured to: send time information, wherein the time information is used to instruct the terminal to measure a neighboring cell before a moment indicated by the time information.

In some embodiments, the time information is used to indicate one of the following: the time when the serving cell provides service to the terminal; the time when the feeder link between the satellite and the ground station is switched; the time when the service link between the satellite and the terminal is switched.

In some embodiments, measuring a neighboring cell includes at least one of the following: intra-frequency measurement; inter-frequency measurement; inter-system measurement; intra-frequency cell measurement; inter-frequency cell measurement; and inter-system cell measurement.

In a fifth aspect, embodiments of the present disclosure provide a terminal. The terminal includes at least one processor and a memory storing instructions. When the instructions are executed by the terminal, the terminal implements the communication method described in the first aspect and possible implementations thereof.

In a sixth aspect, embodiments of the present disclosure provide an access network device. The access network device includes at least one processor and a memory storing instructions. When executed by the access network device, the instructions enable the access network device to implement the communication method described in the second aspect and possible implementations thereof.

In a seventh aspect, embodiments of the present disclosure provide a communication system. The communication system includes a terminal and an access network device. The terminal is configured to execute the communication method described in the first aspect and possible implementations thereof, and the access network device is configured to execute the communication method described in the second aspect and possible implementations thereof.

In an eighth aspect, an embodiment of the present disclosure proposes a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, it implements the communication method as described in the first aspect, the second aspect and possible implementations thereof.

In a ninth aspect, an embodiment of the present disclosure provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, it implements the communication method described in the first aspect, the second aspect, and possible implementations thereof.

In a tenth aspect, an embodiment of the present disclosure provides a computer program. When the computer program is executed on a computer, the computer executes the communication method as described in the first aspect, the second aspect, and possible implementations thereof.

In an eleventh aspect, embodiments of the present disclosure provide a chip or a chip system. The chip or chip system includes a processing circuit. The processing circuit is configured to execute the communication method as described in the first aspect, the second aspect, and possible implementations thereof.

It is understandable that the above-mentioned terminals, access network devices, communication systems, computer-readable storage media, computer program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

The present disclosure provides a communication method, communication device, terminal, access network equipment, and storage medium. In some embodiments, the terms communication method, information processing method, information transmission method, neighboring cell measurement method, and method for measuring neighboring cells are interchangeable. The terms terminal, access network equipment, communication device, and information processing device are interchangeable. The terms information processing system and communication system are interchangeable.

The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and/or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

In the embodiments of the present disclosure, “plurality” refers to two or more.

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

In some embodiments, descriptions such as "at least one of A and B," "A and/or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

In some embodiments, “network devices”, “access network device (AN device)”, “radio access network device (RAN device)”, “base station (BS)”, “radio base station (radio base station)”, “fixed station (fixed station)”, “node (node)”, “access network node”, “access point (access point)”, “transmission point (TP)”, “reception point (RP)”, “transmission and/or The terms transmission/reception point (TRP),” “panel,” “antenna panel,” “antenna array,” “cell,” “macro cell,” “small cell,” “femtocell,” “picocell,” “sector,” “cell group,” “serving cell,” “carrier,” “component carrier,” and “bandwidth part (BWP)” are used interchangeably.

In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

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

In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

As shown in FIG1A , FIG1A is a schematic diagram illustrating an architecture of a communication system according to an embodiment of the present disclosure. Communication system 100 includes a terminal 101 , an access network device 102 , and a core network device 103 .

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

In some embodiments, the access network device 102, for example, is a node or device that accesses a terminal to a wireless network, and may include at least one of an evolved node B (eNB), a next generation eNB (ng-eNB), a next generation node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.

In some embodiments, the technical solution of the present disclosure may be applicable to an open radio access network (Open RAN) architecture. In this case, the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

In some embodiments, the access network device may be composed of a centralized unit (CU) and a distributed unit (DU), where the CU may also be called a control unit. The CU-DU structure may be used to split the protocol layers of the access network device, with some functions of the protocol layers centrally controlled by the CU, and the remaining functions of some or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

In some embodiments, the core network device 103 may be a single device including one or more network elements, or may be multiple devices or device groups, each including all or part of one or more network elements. The network elements may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC) network, a 5G core (5GC) network, or a next generation core (NGC) network.

In some embodiments, the core network may be an EPC network in a 4G system. In this case, the access network device 102 may be, for example, an eNB.

In some embodiments, the core network device 103 may include a first core network network element, such as a serving gateway (S-GW) or a packet data gateway (Packet Data Network Gateway, PDN-GW).

In some embodiments, the first core network element may be used for functions such as user plane processing, routing and forwarding of data packets, and its name is not limited thereto.

In some embodiments, the core network device 103 may include a second core network element, such as a mobility management entity (MME).

In some embodiments, the second core network element can be used for user mobility management, bearer management, user authentication, S-GW selection, etc., and its name is not limited thereto.

In some embodiments, the core network may be a 5G 5G network in a 5G system. In this case, the access network device 102 may be, for example, a gNB.

In some embodiments, the core network device 103 may include a first core network element, such as a user plane function (UPF).

In some embodiments, the first core network network element may be used for routing and forwarding core network user plane data packets, and its name is not limited thereto.

In some embodiments, the core network device 103 may include a second core network element, such as a session management function (SMF) or an access mobility function (AMF).

In some embodiments, the second core network element may be used to process user services, and its name is not limited thereto.

In some embodiments, each network element in the core network device 103 may also be referred to as a network device, a network function, a network entity, etc., without limitation to the name.

It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or some of the entities in the communication system 100 , but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system 100 may include all or some of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities are arbitrary. The entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), etc. ), Global System for Mobile communications (GSM (registered trademark)), CDMA 2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-Wide Band (UWB), Bluetooth (registered trademark)), Public Land Mobile Network (PLMN)) networks, Device to Device (D2D) systems, Machine to Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle to Everything (V2X), systems using other communication methods, and next-generation systems based on them, etc. Furthermore, combinations of multiple systems (for example, combinations of LTE or LTE-A with 5G) may also be applied.

The various embodiments of the present disclosure may be applicable to non-terrestrial networks (NTNs), including networks or network segments that utilize transmission equipment relay nodes or base stations carried on airborne or space vehicles, or any network involving non-terrestrial flying objects. For example, NTNs may include satellite communication networks and high-altitude platform systems (HAPs). In the embodiments of the present disclosure, a satellite communication NTN is used as an example for illustration.

With the development of communication technology, satellite communication technology is considered an important aspect of the future development of wireless communication technology. Communication systems that support satellite access technology (such as 4G and 5G networks) can also be called satellite communication networks. In this communication network, terminals can access the core network (such as EPC and 5GC) through the satellite access network and conduct business. However, due to the insufficient number of satellite deployments, satellite access networks may have problems such as limited coverage. Therefore, satellites may not be able to provide continuous connection services. This discontinuous satellite connection includes interruptions in the service connection between the satellite and the terminal or the feeder connection between the satellite and the ground station.

In some embodiments, the connection between the satellite and the terminal may also be called a service link, and the connection between the satellite and the ground station may also be called a feeder link.

In some embodiments, the satellite communication network can have two different architectures: a satellite communication network architecture based on transparent payloads (i.e., transparent mode) and a satellite communication network architecture based on regenerative payloads (i.e., regenerative mode).

In some embodiments, as shown in FIG1B , FIG1B is a schematic diagram of a satellite communication system architecture based on a transparent transmission payload according to an embodiment of the present disclosure. In this satellite communication system architecture, the core network is described as 5GC. Of course, the core network can also be other evolved versions of the core network, and the embodiments of the present disclosure do not specifically limit this. In the transparent transmission mode, the gNB 20 is deployed on the ground, and the satellite 10 implements the radio frequency function of the gNB 20. The ground station sends the signal of the gNB 20 to the satellite 10. The satellite 10 converts the signal to the satellite frequency band and then sends it to the terminal through the satellite frequency band. In addition to frequency conversion and signal amplification, the satellite 10 does not demodulate the signal of the gNB 20. The role of the satellite 10 is equivalent to a repeater.

In some embodiments, as shown in FIG1C , FIG1C is a schematic diagram of a satellite communication system architecture based on a regenerative payload according to an embodiment of the present disclosure. In this satellite communication system architecture, the core network is still described as 5GC. Of course, the core network can also be other evolved versions of the core network, and the embodiments of the present disclosure do not specifically limit this. In regeneration mode, gNB 20 is deployed on satellite 10. In this case, the gNB can be called a satellite-borne gNB. After the ground station sends the signal to the satellite, the satellite 10 demodulates and decodes the signal, then re-encodes and modulates it (this process can be called regeneration) and sends the regenerated signal to the terminal via the satellite frequency band.

In some embodiments, the operation mode of the satellite communication system based on the transparent mode or the regeneration mode described above can be described as normal or default satellite operation.

In some embodiments, to provide delay-tolerant communication services, a satellite communication system supports store and forward (S&F) functionality. Store and forward (S&F) satellite operation is an operating mode of a communication system with satellite access (i.e., a satellite communication system). When satellite connectivity is intermittent or temporarily unavailable, the communication system can provide a certain level of service (e.g., storing and forwarding data). For example, this can provide communication services to terminals within satellite coverage without requiring simultaneous connection to a ground segment feeder link.

In some embodiments, S&F satellite operations are a common data transmission method used in satellite communications. This mode can be used in scenarios where real-time communication is not possible or where the communication link is unstable. In some embodiments, S&F satellite operations can be applied in areas such as ocean monitoring, environmental monitoring, telemedicine, and disaster response. This mode enables efficient data transmission even without a stable real-time communication link.

Under S&F satellite operation, its data transmission method generally includes at least one of the following steps:

Step 1. Terminal uplink data transmission: First, the terminal sends data to the satellite. When there is no connection between the satellite and the ground station (such as a gateway) (for example, there is no feeder link), the satellite stores the data. Then, when there is a connection between the satellite and the ground station (for example, there is a feeder link), the satellite forwards the data to the ground station. Finally, the ground station receives the data sent by the terminal.

Step 2. The terminal receives downlink data: First, when the ground station is not connected to the satellite (for example, there is no feeder link), the ground station (such as S-GW or MME) caches the data. Then, when the ground station establishes a connection with the satellite (such as a feeder link), the ground station sends the data to the satellite. When the satellite establishes a connection with the terminal, the satellite sends the data to the terminal. 4. When the satellite does not establish a connection with the terminal, the satellite caches the data until the satellite and the terminal establish a connection. The satellite then sends the data to the terminal. Finally, the terminal receives the data sent by the ground station.

In some embodiments, S&F satellite operations have the following advantages: they can overcome geographical limitations, that is, since satellites can cover any place on the earth, communications with remote areas or mobile targets can be achieved; they can cope with unstable communication links, that is, when the communication link is unstable or unavailable, the data can be temporarily stored on the satellite and transmitted when the link is restored; they can achieve batch transmission of data, that is, the satellite can collect a large amount of data and transmit it at one time, which can improve communication efficiency.

In some embodiments, as shown in FIG2A , FIG2A is a schematic diagram illustrating normal or default satellite operation according to an embodiment of the present disclosure. In the "normal/default satellite operation" mode, the interaction of signaling and data transmission between the terminal and the remote terrestrial network (TN) via the satellite requires that the service link and the feeder link are simultaneously active. Therefore, when the terminal interacts with the satellite via the service link, a continuous, end-to-end connection path exists between the terminal, the satellite, and the terrestrial network.

In some embodiments, as shown in FIG2B , FIG2B is a schematic diagram of a store and forward satellite operation according to an embodiment of the present disclosure. Compared with the normal satellite operation described above, under S&F satellite operation, the interaction of end-to-end signaling or data transmission is processed as a combination of two steps that are not performed simultaneously (such as steps A and B in FIG2B ). In step A, signaling or data transmission is exchanged between the terminal and the satellite. At this time, the satellite may not be connected to the ground network (that is, the satellite can use the service link in the absence of an available feeder link connection). In step B, a connection is established between the satellite and the ground network (that is, a feeder link is established), so that communication can be carried out between the satellite and the ground network. Therefore, the satellite moves from being connected to the terminal in step A to being connected to the ground network in step B.

In some embodiments, support for S&F satellite operations is particularly applicable to non-geostationary satellite orbit (NGSO) satellites providing delay-tolerant or non-real-time IoT satellite services.

The following describes and explains the terms involved in the embodiments of the present disclosure.

1. Introduction to Neighboring Cell Measurement

If t-Service is present in the system information of the serving cell (e.g., SystemInformationBlockType3), the terminal shall perform intra-frequency, inter-frequency, or inter-RAT measurements before time t-Service, regardless of whether the serving cell satisfies Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ , or Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} . The exact time to start measurements before t-Service may depend on the terminal implementation. If t-ServiceStartNeigh is present in the system information (e.g., SystemInformationBlockType33), it may be used to decide when to start measurements. The terminal shall perform higher priority inter-frequency or inter-RAT measurements regardless of the remaining service time of the serving cell.

Among them, Srxlev is the received power of the serving cell; Squal is the received signal quality of the serving cell; S _IntraSearchP represents the Srxlev threshold for intra-frequency measurement; S _IntraSearchQ represents the Squal threshold for intra-frequency measurement; S _{nonIntraSearchP} represents the Srxlev threshold for inter-frequency measurement and inter-system measurement of access network equipment; S _{nonIntraSearchQ} represents the Squal threshold for inter-frequency measurement and inter-system measurement of access network equipment.

In some embodiments, the neighbor cell measurement may include at least one of intra-frequency cell measurement, inter-frequency cell measurement, inter-system cell measurement, intra-frequency measurement, inter-frequency measurement, and inter-system measurement performed by a terminal in a radio resource control (RRC) idle state. In some embodiments, the neighbor cell measurement may include at least one of intra-frequency cell measurement, inter-frequency cell measurement, inter-system cell measurement, intra-frequency measurement, inter-frequency measurement, and inter-system measurement performed by a terminal in an RRC inactive state.

In some embodiments, the terms "intra-frequency cell measurement", "intra-frequency measurement", "intra-frequency measurement of neighboring cells" and the like can be used interchangeably.

In some embodiments, the terms "inter-frequency cell measurement", "inter-frequency measurement", "inter-frequency measurement of neighboring cells" and the like can be used interchangeably.

In some embodiments, the terms "inter-system cell measurement", "inter-system measurement", "inter-system measurement on neighboring cells" and the like can be used interchangeably.

In some embodiments, "neighbor cell measurement" and "measure neighbor cell" can be used interchangeably.

2. Introduction to t-Service

t-Service indicates the time when the serving cell provided by the NTN system will stop providing service to the area it currently covers. This field applies to service link transitions in NTN quasi-Earth fixed systems and feeder link transitions in NTN quasi-Earth fixed and Earth moving systems.

For the aforementioned regenerative architecture of satellite access, gNB functions are deployed on the satellite. Even with discontinuous satellite connectivity, delay-tolerant services can still be delivered. This requires the satellite to support store-and-forward data capabilities. This allows for data to be stored on the satellite in the event of a satellite connection interruption and forwarded when the connection is restored. However, when both the satellite and the terminal support store-and-forward functionality, the need for neighboring cell measurements remains a pressing issue.

To solve the above problems, the embodiments of the present disclosure provide a communication method, a communication apparatus, a terminal, an access network device, and a storage medium, which can determine whether to measure neighboring cells, thereby avoiding unnecessary measurements by the terminal and saving power consumption.

In the embodiment of the present disclosure, the access network device may be deployed on a satellite. In this case, the access network device may be described as a satellite-borne access network device.

FIG3A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a communication method, which includes steps S3101 to S3104.

In step S3101, the access network device sends first information.

In some embodiments, the terminal receives first information.

In some embodiments, the first information is used to indicate that the access network device has enabled a store and forward function. In some embodiments, the first information is used to indicate that the serving cell has enabled a store and forward function.

In some embodiments, the first information is used to indicate that the access network device supports a store and forward function. In some embodiments, the first information is used to indicate that the serving cell supports a store and forward function.

In some embodiments, the access network device or serving cell supports the store-and-forward function, which can be understood as the access network device or serving cell having the ability to provide the store-and-forward function. In some embodiments, the access network device or serving cell enabling the store-and-forward function can be understood as the access network device or serving cell supporting the store-and-forward function and enabling the store-and-forward function.

In some embodiments, enabling the store and forward function in the access network or serving cell can be understood as: the access network or serving cell supports the store and forward function and authorizes the terminal to use the store and forward function.

In some embodiments, the serving cell supporting the store and forward function may be understood as: the serving cell having resources to perform the store and forward function.

In some embodiments, authorizing a terminal to use the storage and forwarding function can be understood as: the access network device allocates resources required for the storage and forwarding function to the terminal, such as storage space, uplink and downlink resources for forwarding, etc.

In some embodiments, the first information may be carried in at least one of RRC signaling, media access control-control element (MAC-CE) signaling, downlink control information (DCI), and a system message. In some embodiments, the system message may include a master information block (MIB) and a system information block (SIB).

In some embodiments, when the storage and forwarding function is not enabled in the serving cell, step S3101 may be omitted.

In some embodiments, when the serving cell does not support the store and forward function, step S3101 may be omitted.

In some embodiments, when the terminal does not support the store and forward function, step S3101 can be omitted.

In some embodiments, the terminal not supporting the store and forward function can be understood as: the terminal is not capable of performing the store and forward function, or the terminal is capable of performing the store and forward function but is not authorized to use the store and forward function.

In step S3102, the access network device sends time information.

In some embodiments, the terminal receives time information. In some embodiments, the time information may be used to instruct the terminal to measure neighboring cells before a time indicated by the time information.

In some embodiments, the time information may be used to indicate the time (e.g., t-Service) that the serving cell provides service to the terminal. In some embodiments, the time information may be used to indicate the time when a feeder link is switched. In some embodiments, the time information may be used to indicate the time when a service link is switched.

In some embodiments, the time when the serving cell provides service to the terminal can be understood as the time when the serving cell will stop providing service to the terminal.

In some embodiments, "time" and "moment" can be used interchangeably.

In some embodiments, the time when the feeder link is switched can be understood as the time when the connection between the satellite and the ground station is switched, for example, the moment when the satellite is switched from the current ground station to another ground station.

In some embodiments, the time when the service link is switched can be understood as the time when the connection between the terminal and the satellite is switched, for example, the moment when the terminal switches from the current satellite to another satellite.

In some embodiments, measuring neighboring cells may include at least one of intra-frequency measurement, inter-frequency measurement, inter-RAT measurement, intra-frequency cell measurement, inter-frequency cell measurement, and inter-system cell measurement.

In some embodiments, the time information may be carried in system information. In some embodiments, the time information may also be carried in other information, such as RRC signaling, MAC CE signaling, and DCI.

In some embodiments, the order in which step S3101 and step S3102 are performed is not limited. In one example, step S3101 and step S3102 can be performed simultaneously. In one example, step S3101 can be performed before step S3102. In another example, step S3102 can be performed before step S3101.

In step S3103, the terminal ignores the time information.

In some embodiments, when the terminal receives the first information, the terminal may ignore the time information. In some embodiments, the terminal ignoring the time information may be understood as the terminal not measuring the neighboring cell before the time indicated by the time information.

In some embodiments, when the terminal receives the first information and the terminal supports a store and forward function, the terminal may ignore the time information.

In some embodiments, the terminal supporting the store and forward function can be understood as: the terminal is capable of performing the store and forward function, or the terminal is capable of performing the store and forward function and is authorized to use the store and forward function.

In some embodiments, the terminal ignoring the time information can be understood as the terminal determining whether to measure the neighboring cell only according to the signal quality of the serving cell when receiving the first information and the time information.

In step S3104, the terminal determines not to measure neighboring cells based on the signal quality of the serving cell.

In some embodiments, upon receiving the first information and time information and the signal quality of the serving cell being greater than a first value, the terminal determines not to measure the neighboring cell. In some implementations, the terminal's determination not to measure the neighboring cell may indicate that the terminal may choose not to measure the neighboring cell.

In some embodiments, the terms “determine not to measure”, “may choose not to measure”, “expect not to measure”, “may choose not to measure”, etc. may be used interchangeably.

In some embodiments, when the terminal supports a store and forward function, receives the first information and the time information, and the signal quality of the serving cell is greater than a first value, the terminal determines not to measure the neighboring cell.

In some embodiments, upon receiving the first information and the time information, and when the signal quality of the serving cell is greater than a first value, the terminal determines not to measure the neighboring cell before the time indicated by the time information.

In some embodiments, when the terminal supports the store and forward function, receives the first information and time information, and the signal quality of the serving cell is greater than a first value, the terminal determines not to measure the neighboring cell before the time indicated by the time information.

In some embodiments, upon receiving the first information and the time information, and when the signal quality of the serving cell is greater than the first value, the terminal determines not to measure the neighboring cell after the time indicated by the time information.

In some embodiments, when the terminal supports a store and forward function and receives the first information and time information and the signal quality of the serving cell is greater than a first value, the terminal determines not to measure the neighboring cell after the time indicated by the time information.

In some embodiments, S3102 is omitted, indicating that after receiving the first information, the terminal directly executes step S3104. That is, after step S3101, step S3104 is directly executed. In some embodiments, after receiving the first information, the terminal determines whether to measure the neighboring cell based on the signal quality of the serving cell. In some embodiments, after receiving the first information, the terminal determines whether to measure the neighboring cell based on the signal quality of the serving cell, regardless of whether the time information is received.

In some embodiments, determining whether to measure a neighboring cell according to the signal quality of the serving cell may include step S3104, and the terminal determines to measure a neighboring cell according to the signal quality of the serving cell.

It should be noted that: the terminal determines to measure the neighboring cell according to the signal quality of the serving cell, which will be described in the subsequent step S3203.

In some embodiments, when the access network device does not send time information, when the first information is received and the signal quality of the serving cell is greater than a first value, the terminal may choose not to measure the neighboring cell.

In some embodiments, when the terminal receives the first information and the time information and the signal quality of the serving cell is greater than the first value, determining not to measure the neighboring cell can be divided into the following two situations:

Case 1: When the terminal receives the first information and the time information and the first parameter is greater than the first threshold, the terminal determines not to measure the neighboring cell;

Case 2: upon receiving the first information and time information, the first parameter being greater than the first threshold, and the second parameter being greater than the second threshold, the terminal determines not to measure the neighboring cell.

In some embodiments, the terminal may determine the first parameter and/or the second parameter.

In some embodiments, the first parameter and/or the second parameter may be used to indicate the signal quality of the serving cell.

In some embodiments, the first parameter may be used to indicate the received power of the serving cell. For example, the first parameter may be Srxlev.

In one example, when the first parameter is Srxlev, the first threshold value may include: S _IntraSearchP and/or S _{nonIntraSearchP} . Here, S _IntraSearchP may be understood as the threshold value corresponding to Srxlev in intra-frequency measurement, and S _{nonIntraSearchP} may be understood as the threshold value corresponding to Srxlev in inter-frequency measurement and/or inter-system measurement.

In an example, case one may include: upon receiving the first information and the time information, and when Srxlev>S _IntraSearchP , the terminal determines not to perform intra-frequency measurement on the neighboring cell.

In an example, case one may include: upon receiving the first information and the time information, and when Srxlev>S _{nonIntraSearchP} , the terminal determines not to perform inter-frequency measurement on the neighboring cell.

In an example, case 1 may include: upon receiving the first information and the time information, and when Srxlev>S _{nonIntraSearchP} , the terminal determines not to perform inter-system measurement on the neighboring cell.

In an example, case one may include: upon receiving the first information and the time information, and when Srxlev>S _{nonIntraSearchP} , the terminal determines not to perform inter-frequency measurement and not to perform inter-system measurement on the neighboring cell.

In some embodiments, the second parameter may be used to indicate the received signal quality of the serving cell. For example, the second parameter may be Squal.

In one example, when the second parameter is Squal, the second threshold value may include: S _IntraSearchQ and/or S _{nonIntraSearchQ} . Here, S _IntraSearchQ may be understood as the threshold value corresponding to Squal in intra-frequency measurement, and S _{nonIntraSearchQ} may be understood as the threshold value corresponding to Squal in inter-frequency measurement and/or inter-system measurement.

In an example, case 2 may include: upon receiving the first information and the time information, and when Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ , the terminal determines not to perform intra-frequency measurement on the neighboring cell.

In an example, case 2 may include: upon receiving the first information and the time information, and when Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the terminal determines not to perform inter-frequency measurement on the neighboring cell.

In an example, case 2 may include: upon receiving the first information and the time information, and when Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the terminal determines not to perform inter-system measurement on the neighboring cell.

In an example, case 2 may include: upon receiving the first information and time information, Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the terminal determines not to perform inter-frequency measurement and not to perform inter-system measurement on the neighboring cell.

In some embodiments, when the terminal receives the first information and the time information and the signal quality of the serving cell is greater than the first value, before the time indicated by the time information, determining not to measure the neighboring cell can be divided into the following two cases:

Case 1: When the terminal receives the first information and the time information and the first parameter is greater than the first threshold, the terminal determines not to measure the neighboring cell before the time indicated by the time information;

Case 2: upon receiving the first information and time information, the first parameter being greater than the first threshold and the second parameter being greater than the second threshold, the terminal determines not to measure the neighboring cell before the time indicated by the time information.

In an example, case 1 may include: when the terminal receives the first information and the time information and Srxlev>S _IntraSearchP , the terminal determines not to perform intra-frequency measurement on the neighboring cell before the time indicated by the time information.

In an example, case 1 may include: upon receiving the first information and the time information, and when Srxlev>S _{nonIntraSearchP} , the terminal determines not to perform inter-frequency measurement on the neighboring cell before the time indicated by the time information.

In an example, case 1 may include: upon receiving the first information and the time information, and when Srxlev>S _{nonIntraSearchP} , the terminal determines not to perform inter-system measurement on the neighboring cell before the time indicated by the time information.

In one example, case 1 may include: when the terminal receives the first information and time information and Srxlev>S _{nonIntraSearchP} , before the moment indicated by the time information, determining not to perform inter-frequency measurement and not to perform inter-system measurement on the neighboring cell.

In an example, case 2 may include: upon receiving the first information and time information, when Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ , the terminal determines not to perform intra-frequency measurement on the neighboring cell before the time indicated by the time information.

In an example, case 2 may include: upon receiving the first information and time information, when Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the terminal determines not to perform inter-frequency measurement on the neighboring cell before the time indicated by the time information.

In an example, case 2 may include: upon receiving the first information and time information, when Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the terminal determines not to perform inter-system measurement on the neighboring cell before the time indicated by the time information.

In one example, case 2 may include: when the terminal receives the first information and time information, Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , before the moment indicated by the time information, determining not to perform inter-frequency measurement and not to perform inter-system measurement on the neighboring cell.

In some embodiments, when the terminal receives the first information and the time information and the signal quality of the serving cell is greater than the first value, after the time indicated by the time information, determining not to measure the neighboring cell can be divided into the following two situations:

Case 1: When the terminal receives the first information and the time information and the first parameter is greater than the first threshold, the terminal determines not to measure the neighboring cell after the time indicated by the time information;

Second case: after receiving the first information and time information, the first parameter is greater than the first threshold, and the second parameter is greater than the second threshold, the terminal determines not to measure the neighboring cell after the time indicated by the time information.

In an example, the first case may include: when the terminal receives the first information and the time information and Srxlev>S _IntraSearchP , after the time indicated by the time information, determining not to perform intra-frequency measurement on the neighboring cell.

In an example, the first case may include: when the terminal receives the first information and the time information and Srxlev>S _{nonIntraSearchP} , after the time indicated by the time information, determining not to perform inter-frequency measurement on the neighboring cell.

In an example, the first case may include: when the terminal receives the first information and the time information and Srxlev>S _{nonIntraSearchP} , after the time indicated by the time information, determining not to perform inter-system measurement on the neighboring cell.

In one example, the first case may include: when the terminal receives the first information and time information, and Srxlev>S _{nonIntraSearchP} , after the moment indicated by the time information, determining not to perform inter-frequency measurement and not to perform inter-system measurement on the neighboring cell.

In an example, the second case may include: when the terminal receives the first information and the time information, Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ , after the time indicated by the time information, determining not to perform intra-frequency measurement on the neighboring cell.

In an example, the second case may include: when the terminal receives the first information and the time information, Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , after the time indicated by the time information, determining not to perform inter-frequency measurement on the neighboring cell.

In an example, the second case may include: upon receiving the first information and time information, when Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the terminal determines not to perform inter-system measurement on the neighboring cell after the time indicated by the time information.

In one example, the second situation may include: when the terminal receives the first information and time information, Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , after the moment indicated by the time information, determining not to perform inter-frequency measurement and not to perform inter-system measurement on the neighboring cell.

In some embodiments, when the access network device does not send the time information, when the first information is received and the signal quality of the serving cell is greater than the first value, the terminal may choose not to measure the neighboring cell, which may include the following implementation methods:

Mode 1: When the first information is received and the first parameter is greater than the first threshold, the terminal determines not to measure the neighboring cell;

Method 2: When the first information is received, the first parameter is greater than the first threshold, and the second parameter is greater than the second threshold, the terminal determines not to measure the neighboring cell.

In an example, the first method may include: when the first information is received and Srxlev>S _IntraSearchP , the terminal determines not to perform intra-frequency measurement on the neighboring cell.

In an example, the first method may include: when the first information is received and Srxlev>S _{nonIntraSearchP} , the terminal determines not to perform inter-frequency measurement on the neighboring cell.

In an example, the first method may include: when the first information is received and Srxlev>S _{nonIntraSearchP} , the terminal determines not to perform inter-system measurement on the neighboring cell.

In an example, the first method may include: when the first information is received and Srxlev>S _{nonIntraSearchP} , the terminal determines not to perform inter-frequency measurement on the neighboring cell and not to perform inter-system measurement on the neighboring cell.

In an example, the second manner may include: when the first information is received, Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ , the terminal determines not to perform intra-frequency measurement on the neighboring cell.

In an example, the second manner may include: when the first information is received, Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the terminal determines not to perform inter-frequency measurement on the neighboring cell.

In an example, the second manner may include: when the first information is received, Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the terminal determines not to perform inter-system measurement on the neighboring cell.

In an example, the second approach may include: upon receiving the first information, Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the terminal determines not to perform inter-frequency measurement and not to perform inter-system measurement on the neighboring cell.

The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3104. For example, step S3101 can be implemented as an independent embodiment. Step S3104 can be implemented as an independent embodiment. The combination of step S3101 and step S3104 can be implemented as an independent embodiment. The combination of step S3102 and step S3104 can be implemented as an independent embodiment. For example, the combination of step S3101, step S3102, and step S3104 can be implemented as an independent embodiment, but is not limited thereto.

In some embodiments, step S3101 and step S3102 may be executed in an interchangeable order or simultaneously.

In some embodiments, step S3102, step S3103, and step S3104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S3101, step S3102, and step S3103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S3103 and step S3104 may be executed in an interchangeable order or simultaneously.

Figure 3B is another interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 3B, the embodiment of the present disclosure relates to a communication method, which includes steps S3201 to S3203.

In step S3201, the access network device sends first information.

The optional implementation of step S3201 can refer to the optional implementation of step S3101 in Figure 3A and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.

In step S3202, the access network device sends time information.

The optional implementation of step S3202 can refer to the optional implementation of step S3102 in Figure 3A and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.

In step S3203, the terminal determines a neighboring cell to measure based on the signal quality of the serving cell.

In some embodiments, upon receiving the first information and the time information, and when the signal quality of the serving cell is less than or equal to the first value, the terminal determines to measure the neighboring cell.

In some embodiments, when the terminal supports a store and forward function, receives the first information and time information, and the signal quality of the serving cell is less than or equal to a first value, the terminal determines to measure a neighboring cell.

In some embodiments, upon receiving the first information and time information, and the signal quality of the serving cell is less than or equal to the first value, the terminal determines to measure the neighboring cell before the time indicated by the time information. In some embodiments, upon supporting the store and forward function, upon receiving the first information and time information, and the signal quality of the serving cell is less than or equal to the first value, the terminal determines to measure the neighboring cell before the time indicated by the time information.

In some embodiments, when the storage and forwarding function is not enabled in the serving cell, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether the first parameter is greater than the first threshold.

In some embodiments, when the serving cell does not support the store and forward function, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether the first parameter is greater than the first threshold.

In some embodiments, when the terminal does not support a store and forward function, the terminal determines to measure a neighboring cell before the time indicated by the time information, regardless of whether the first parameter is greater than a first threshold.

In some embodiments, when the storage and forwarding function is not enabled in the serving cell, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether the first parameter is greater than the first threshold and the second parameter is greater than the second threshold.

In some embodiments, when the serving cell does not support the store and forward function, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether the first parameter is greater than the first threshold and the second parameter is greater than the second threshold.

In some embodiments, when the terminal does not support the store and forward function, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether the first parameter is greater than the first threshold and the second parameter is greater than the second threshold.

In some embodiments, when the terminal receives the first information and the time information and the signal quality of the serving cell is less than or equal to the first value, determining to measure the neighboring cell can be divided into the following two cases:

Case 1: when the first information and time information are received and the first parameter is less than or equal to the first threshold, determining to measure the neighboring cell;

Case 2: when the first information and time information are received, the first parameter is less than or equal to the first threshold, and the second parameter is less than or equal to the second threshold, it is determined to measure the neighboring cell.

For the description of the first parameter and the second parameter, please refer to the description of the first parameter and the second parameter in step S3104 of FIG3A , which will not be repeated here.

In an example, case 1 may include: when the terminal receives the first information and the time information and Srxlev≤S _IntraSearchP , the terminal determines to perform intra-frequency measurement on the neighboring cell.

In an example, case 1 may include: when the terminal receives the first information and the time information and Srxlev≤S _{nonIntraSearchP} , determining to perform inter-frequency measurement on a neighboring cell.

In an example, case 1 may include: when the terminal receives the first information and the time information and Srxlev≤S _{nonIntraSearchP} , determining to perform inter-system measurement on a neighboring cell.

In an example, case 1 may include: when the terminal receives the first information and the time information and Srxlev≤S _{nonIntraSearchP} , determining to perform inter-frequency measurement on the neighboring cell and to perform inter-system measurement on the neighboring cell.

In an example, case 2 may include: upon receiving the first information and the time information, and when Srxlev≤S _IntraSearchP and Squal≤S _IntraSearchQ , the terminal determines to perform intra-frequency measurement on a neighboring cell.

In an example, case 2 may include: upon receiving the first information and the time information, Srxlev≤S _{nonIntraSearchP} , and Squal≤S _{nonIntraSearchQ} , the terminal determines to perform inter-frequency measurement on a neighboring cell.

In an example, case 2 may include: upon receiving the first information and the time information, and when Srxlev≤S _{nonIntraSearchP} and Squal≤S _{nonIntraSearchQ} , the terminal determines to perform inter-system measurement on a neighboring cell.

In an example, case 2 may include: upon receiving the first information and time information, and when Srxlev≤S _{nonIntraSearchP} and Squal≤S _{nonIntraSearchQ} , the terminal determines to perform inter-frequency measurement and inter-system measurement on the neighboring cell.

In some embodiments, when the terminal receives the first information and the time information and the signal quality of the serving cell is less than or equal to the first value, before the time indicated by the time information, determining to measure the neighboring cell can be divided into the following two cases:

Case 1: When the terminal receives the first information and the time information and the first parameter is less than or equal to the first threshold, the terminal determines to measure the neighboring cell before the time indicated by the time information;

Case 2: upon receiving the first information and time information, the first parameter being less than or equal to the first threshold and the second parameter being less than or equal to the second threshold, the terminal determines to measure the neighboring cell before the time indicated by the time information.

In an example, case one may include: when the first information and time information are received and Srxlev≤S _IntraSearchP , the terminal determines to perform intra-frequency measurement on a neighboring cell before a time indicated by the time information.

In an example, case one may include: when the terminal receives the first information and the time information and Srxlev≤S _{nonIntraSearchP} , the terminal determines to perform inter-frequency measurement on the neighboring cell before the time indicated by the time information.

In an example, case one may include: when the terminal receives the first information and the time information and Srxlev≤S _{nonIntraSearchP} , before the time indicated by the time information, determining to perform inter-system measurement on the neighboring cell.

In an example, case one may include: when the terminal receives the first information and time information and Srxlev≤S _{nonIntraSearchP} , before the time indicated by the time information, determining to perform inter-frequency measurement and inter-system measurement on the neighboring cell.

In an example, case 2 may include: upon receiving the first information and the time information, when Srxlev≤S _IntraSearchP and Squal≤S _IntraSearchQ , the terminal determines to perform intra-frequency measurement on the neighboring cell before the time indicated by the time information.

In an example, case 2 may include: upon receiving the first information and the time information, when Srxlev≤S _{nonIntraSearchP} and Squal≤S _{nonIntraSearchQ} , the terminal determines to perform inter-frequency measurement on the neighboring cell before the time indicated by the time information.

In an example, case 2 may include: upon receiving the first information and the time information, and when Srxlev≤S _{nonIntraSearchP} and Squal≤S _{nonIntraSearchQ} , the terminal determines to perform inter-system measurement on a neighboring cell before a time indicated by the time information.

In an example, case 2 may include: upon receiving the first information and time information, Srxlev≤S _{nonIntraSearchP} and Squal≤S _{nonIntraSearchQ} , the terminal determines to perform inter-frequency measurement and inter-system measurement on the neighboring cell before the moment indicated by the time information.

For the above case where the storage and forwarding function is not enabled in the serving cell, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether the first parameter is greater than the first threshold value, which may include the following examples:

In one example, when the store and forward function is not enabled in the serving cell, the terminal determines to perform intra-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _IntraSearchP is satisfied.

In an example, when the store and forward function is not enabled in the serving cell, the terminal determines to perform inter-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} is satisfied.

In an example, when the store and forward function is not enabled in the serving cell, the terminal determines to perform inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} is satisfied.

In an example, when the store and forward function is not enabled in the serving cell, the terminal determines to perform inter-frequency measurement and inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} is satisfied.

For the above case where the serving cell does not support the store and forward function, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether the first parameter is greater than the first threshold value, which may include the following examples:

In an example, when the serving cell does not support the store and forward function, the terminal determines to perform intra-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _IntraSearchP is satisfied.

In an example, when the serving cell does not support the store and forward function, the terminal determines to perform inter-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether the condition Srxlev>S _{nonIntraSearchP} is satisfied.

In an example, when the serving cell does not support the store and forward function, the terminal determines to perform inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether the condition Srxlev>S _{nonIntraSearchP} is satisfied.

In an example, when the serving cell does not support the store and forward function, the terminal determines to perform inter-frequency measurement and inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} is satisfied.

In the case where the terminal does not support the store and forward function, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether the first parameter is greater than the first threshold value, which may include the following examples:

In an example, when the terminal does not support the store and forward function, the terminal determines to perform intra-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _IntraSearchP is satisfied.

In an example, when the terminal does not support the store and forward function, the terminal determines to perform inter-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether the condition Srxlev>S _{nonIntraSearchP} is satisfied.

In an example, when the terminal does not support the store and forward function, the terminal determines to perform inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} is satisfied.

In one example, when the terminal does not support the store and forward function, the terminal determines to perform inter-frequency measurement and inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether the following conditions are met: Srxlev>S _{nonIntraSearchP} . Regarding the above situation where the store and forward function is not enabled on the serving cell, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether the following conditions are met: the first parameter is greater than the first threshold value and the second parameter is greater than the second threshold value. Examples may include:

In one example, when the store and forward function is not enabled in the serving cell, the terminal determines to perform intra-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ are satisfied.

In an example, when the serving cell does not enable the store and forward function, the terminal determines to perform inter-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} are satisfied.

In an example, when the store and forward function is not enabled in the serving cell, the terminal determines to perform inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} are satisfied.

In one example, when the serving cell does not have the store and forward function enabled, the terminal determines to perform inter-frequency measurement and inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} are satisfied.

For the above case where the serving cell does not support the store and forward function, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether: the first parameter is greater than the first threshold value and the second parameter is greater than the second threshold value, which may include the following examples:

In an example, when the serving cell does not support the store and forward function, the terminal determines to perform intra-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ are satisfied.

In an example, when the serving cell does not support the store and forward function, the terminal determines to perform inter-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} are satisfied.

In an example, when the serving cell does not support the store and forward function, the terminal determines to perform inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} are satisfied.

In one example, when the serving cell does not support the store and forward function, the terminal determines to perform inter-frequency measurement and inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} are satisfied.

For the above case where the terminal does not support the store and forward function, the terminal determines to measure the neighboring cell before the time indicated by the time information, regardless of whether: the first parameter is greater than the first threshold value and the second parameter is greater than the second threshold value, which may include the following examples:

In an example, when the terminal does not support the store and forward function, the terminal determines to perform intra-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether the following conditions are met: Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ .

In an example, when the terminal does not support the store and forward function, the terminal determines to perform inter-frequency measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} are satisfied.

In an example, when the terminal does not support the store and forward function, the terminal determines to perform inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} are satisfied.

In an example, when the terminal does not support the store and forward function, the terminal determines to perform inter-frequency measurement and inter-system measurement on the neighboring cell before the time indicated by the time information, regardless of whether Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} are satisfied.

The communication method according to the embodiments of the present disclosure may include at least one of steps S3201 to S3203. For example, step S3201 may be implemented as an independent embodiment. Step S3203 may be implemented as an independent embodiment. The combination of step S3201 and step S3203 may be implemented as an independent embodiment. For example, the combination of step S3201, step S3202, and step S3203 may be implemented as an independent embodiment, but is not limited thereto.

In some embodiments, step S3201 and step S3202 may be executed in an interchangeable order or simultaneously.

In some embodiments, step S3202 and step S3203 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S3201 and step S3202 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

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

In some embodiments, terms such as "component carrier (CC)", "cell", "serving cell", "frequency carrier", and "carrier frequency" can be used interchangeably.

In some embodiments, the terms "carry", "include", "comprises", etc. can be used interchangeably.

In some embodiments, the terms "bearer", "radio bearer", "connection", "resource" and the like may be used interchangeably.

In some embodiments, terms such as wireless access scheme and waveform can be used interchangeably.

In some embodiments, the terms "operating mode," "operation," "mode," "state," etc. may be used interchangeably.

In some embodiments, terms such as "downlink", "downlink", "physical downlink" can be interchangeable, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication" can be interchangeable.

In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and/or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

In some embodiments, terms such as "send", "transmit", "report", "send", "transmit", "request", "bidirectional transmission", "send and/or receive" can be used interchangeably.

In some embodiments, terms such as "certain", "predetermined", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "predetermined A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or the first A, etc., but not limited to this.

In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited thereto.

Figure 4A is a flow chart of a communication method performed by a terminal according to an embodiment of the present disclosure. As shown in Figure 4A, the present disclosure embodiment relates to a communication method, which is applied to the above-mentioned terminal, and the above-mentioned method includes steps S4101 to S4104.

In step S4101, first information is obtained.

The optional implementation of step S4101 can refer to the optional implementation of step S3101 in Figure 3A, step S3201 in Figure 3B, and other related parts in the embodiments involved in Figures 3A and 3B, which will not be repeated here.

In step S4102, time information is obtained.

The optional implementation of step S4102 can refer to the optional implementation of step S3102 in Figure 3A, step S3202 in Figure 3B, and other related parts in the embodiments involved in Figures 3A and 3B, which will not be repeated here.

In step S4103, the time information is ignored.

The optional implementation of step S4103 can refer to the optional implementation of step S3103 in Figure 3A and other related parts of the embodiment involved in Figure 3A, which will not be repeated here.

In step S4104, it is determined not to measure neighboring cells based on the signal quality of the serving cell.

The optional implementation of step S4104 can refer to the optional implementation of step S3104 in Figure 3A and other related parts of the embodiment involved in Figure 3A, which will not be repeated here.

The communication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4104. For example, step S4101 can be implemented as an independent embodiment. Step S4104 can be implemented as an independent embodiment. The combination of step S4101 and step S4104 can be implemented as an independent embodiment. The combination of step S4102 and step S4104 can be implemented as an independent embodiment. For example, the combination of step S4101, step S4102, and step S4104 can be implemented as an independent embodiment, but is not limited thereto.

In some embodiments, step S4101 and step S4102 may be executed in an interchangeable order or simultaneously.

In some embodiments, step S4102, step S4103, and step S4104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S4101, step S4102, and step S4103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S4103 and step S4104 may be executed in an interchangeable order or simultaneously.

Figure 4B is a flow chart of a communication method performed by a terminal according to an embodiment of the present disclosure. As shown in Figure 4B, the present disclosure embodiment relates to a communication method, which is applied to the above-mentioned terminal, and the above-mentioned method includes steps S4201 to S4203.

In step S4201, first information is obtained.

The optional implementation of step S4201 can refer to the optional implementation of step S3101 in Figure 3A, step S3201 in Figure 3B, and other related parts in the embodiments involved in Figures 3A and 3B, which will not be repeated here.

In step S4202, time information is obtained.

The optional implementation of step S4202 can refer to the optional implementation of step S3102 in Figure 3A, step S3202 in Figure 3B, and other related parts in the embodiments involved in Figures 3A and 3B, which will not be repeated here.

In step S4203, a neighboring cell to be measured is determined based on the signal quality of the serving cell.

The optional implementation of step S4203 can refer to the optional implementation of step S3203 in Figure 3B and other related parts of the embodiment involved in Figure 3B, which will not be repeated here.

The communication method involved in the embodiments of the present disclosure may include at least one of steps S4201 to S4203. For example, step S4201 may be implemented as an independent embodiment. Step S4203 may be implemented as an independent embodiment. The combination of step S4201 and step S4203 may be implemented as an independent embodiment. For example, the combination of step S4201, step S4202, and step S4203 may be implemented as an independent embodiment, but is not limited thereto.

In some embodiments, step S4201 and step S4202 may be executed in an interchangeable order or simultaneously.

In some embodiments, step S4202 and step S4203 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S4201 and step S4202 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

Figure 4C is a flow chart of a communication method performed by an access network device according to an embodiment of the present disclosure. As shown in Figure 4C, the present disclosure embodiment relates to a communication method, which is applied to the access network device, and the method includes steps S4301 to S4302.

In step S4301, the first information is sent.

The optional implementation of step S4301 can refer to the optional implementation of step S3101 in Figure 3A, step S3201 in Figure 3B, and other related parts in the embodiments involved in Figures 3A and 3B, which will not be repeated here.

In step S4302, time information is sent.

The optional implementation of step S4302 can refer to the optional implementation of step S3102 in Figure 3A, step S3202 in Figure 3B, and other related parts in the embodiments involved in Figures 3A and 3B, which will not be repeated here.

The communication method according to the embodiments of the present disclosure may include at least one of steps S4301 and S4302. For example, step S4301 may be implemented as an independent embodiment. For example, step S4302 may be implemented as an independent embodiment. For example, a combination of step S4301 and step S4302 may be implemented as an independent embodiment, but the present disclosure is not limited thereto.

In some embodiments, step S4301 and step S4302 may be executed in an interchangeable order or simultaneously.

In some embodiments, step S4301 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S4302 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

FIG5A is a flow chart of a communication method executed by a terminal side according to an embodiment of the present disclosure. As shown in FIG5A , the embodiment of the present disclosure relates to a communication method, which is applied to the terminal, and the method includes step S5101.

In step S5101, it is determined whether to measure a neighboring cell according to the signal quality of the serving cell.

The optional implementation of step S5101 can be found in the optional implementation of steps S3103 and S3104 in Figure 3A, the optional implementation of step S3203 in Figure 3B and other related parts in the embodiments involved in Figures 3A and 3B, which will not be repeated here.

Figure 5B is a flow chart of a communication method performed by an access network device according to an embodiment of the present disclosure. As shown in Figure 5B, the present disclosure embodiment relates to a communication method, which is applied to the access network device, and the method includes step S5201.

In step S5201, the first information is sent.

The optional implementation of step S5201 can refer to the optional implementation of step S3101 in Figure 3A, step S3201 in Figure 3B, and other related parts in the embodiments involved in Figures 3A and 3B, which will not be repeated here.

In some embodiments, if the UE supports the store and forward function and the serving cell has the store and forward function enabled, the UE determines whether to measure the neighboring cell based on the signal quality of the serving cell.

In some embodiments, if the UE supports the store and forward function and the serving cell has the store and forward function enabled, if the network configures time information for neighbor cell measurement, the UE ignores the time information and determines whether to measure the neighbor cell based on the signal quality of the serving cell.

In some embodiments, the time information is t-service, which includes service link switching in the NTN quasi-geo-fixed system and feeder link switching in the NTN quasi-geo-fixed and geo-mobile systems.

In some embodiments, the time information is the time to switch the feeder link (such as a feeder link switch).

In some embodiments, neighbor cell measurement includes intra-frequency measurement, inter-frequency measurement, and inter-system measurement.

In some embodiments, if the UE supports the store and forward function and the serving cell has the store and forward function enabled, if the network configures time information for neighbor cell measurement, and if the signal quality of the serving cell is higher than the threshold, the UE may choose not to perform neighbor cell measurement.

In some embodiments, if the UE supports the store and forward function and the serving cell has the store and forward function enabled, if the network configures time information for neighbor cell measurement, if the signal quality of the serving cell is lower than the threshold, the UE should perform neighbor cell measurement before the time information.

In one example, if measurement is performed using a specified received signal strength (RSS) and the serving cell satisfies Srxlev>S _IntraSearchP , the time information exists in the system information, the UE supports the store and forward function, and the serving cell has the store and forward function enabled, the UE may choose not to perform intra-frequency measurement; if the UE does not support the store and forward function, and/or the serving cell does not have the store and forward function enabled, regardless of whether the serving cell satisfies Srxlev>S _IntraSearchP , the UE should perform intra-frequency measurement before the time information; if the time information does not exist in the system information, the UE may choose not to perform intra-frequency measurement.

In one example, if the serving cell satisfies Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ , the time information exists in the system information, the UE supports the storage and forwarding function, and the serving cell has the storage and forwarding function enabled, the UE may choose not to perform the intra-frequency measurement; if the UE does not support the storage and forwarding function, and/or the serving cell has the storage and forwarding function enabled, regardless of whether the serving cell satisfies Srxlev>S _IntraSearchP and Squal>S _IntraSearchQ , the UE should perform the intra-frequency measurement before the time information; if the time information does not exist in the system information, the UE may choose not to perform the intra-frequency measurement.

In one example, if measurements are performed using the specified RSS and the serving cell satisfies Srxlev>S _{nonIntraSearchP} , the time information exists in the system information, the UE supports the storage and forwarding function, and the serving cell has the storage and forwarding function enabled, the UE may choose not to perform inter-frequency measurements and/or inter-system measurements; if the UE does not support the storage and forwarding function, and/or the serving cell has the storage and forwarding function enabled, regardless of whether the serving cell satisfies Srxlev>S _{nonIntraSearchP} , the UE should perform inter-frequency measurements and/or inter-system measurements before the time information; if the time information does not exist in the system information, the UE may choose not to perform inter-frequency measurements and/or inter-system measurements.

In one example, if the serving cell satisfies Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the time information exists in the system information, the UE supports the storage and forwarding function, and the serving cell has the storage and forwarding function turned on, the UE may choose not to perform inter-frequency measurement and/or inter-system measurement; if the UE does not support the storage and forwarding function, and/or the serving cell has the storage and forwarding function turned on, regardless of whether the serving cell satisfies Srxlev>S _{nonIntraSearchP} and Squal>S _{nonIntraSearchQ} , the UE should perform inter-frequency measurement and/or inter-system measurement before the time information; if the time information does not exist in the system information, the UE may choose not to perform inter-frequency measurement and/or inter-system measurement.

The present disclosure also provides an apparatus for implementing any of the above methods. For example, a device is provided that includes units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another device is provided that includes units or modules for implementing each step performed by an access network device in any of the above methods.

It should be understood that the division of the various units or modules in the above devices is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above devices, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits. The hardware circuits may be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules may be implemented by designing the logical relationships between the components within the circuit. For another example, in another implementation, the hardware circuit may be implemented by a programmable logic device (PLD). For example, a field programmable gate array (FPGA) may include a large number of logic gate circuits, and the connection relationships between the logic gate circuits may be configured through configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented entirely by a processor calling software, or entirely by a hardware circuit, or partially by a processor calling software, with the remainder implemented by a hardware circuit.

In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a CPU, a microprocessor, a graphics processing unit (GPU) (which can also be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of a hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an ASIC or PLD, such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

As shown in Figure 6A, Figure 6A is a structural diagram of a communication device provided according to an embodiment of the present disclosure. The structure of the communication device 6100 may be as shown in Figure 6A. The communication device 6100 may be a terminal. The communication device 6100 includes: a processing module 6101. In some embodiments, the processing module 6101 is used to determine whether to measure a neighboring cell based on the signal quality of the serving cell when the serving cell has a store and forward function turned on. In some embodiments, the above-mentioned processing module 6101 is configured to execute at least one of the processing steps (for example, step S4103, step S4104, step S4203) performed by the terminal in any of the above methods, which will not be repeated here.

As shown in Figure 6B, Figure 6B is a structural diagram of a communication device provided according to an embodiment of the present disclosure. The structure of the above-mentioned communication device 6200 can be as shown in Figure 6B. The communication device 6200 can be an access network device. The communication device 6200 includes: a transceiver module 6201. In some embodiments, the transceiver module 6201 is used to send a first message, wherein the first information is used to indicate that the serving cell has turned on the storage and forwarding function. In some embodiments, the above-mentioned transceiver module 6201 is configured to perform at least one of the communication steps such as sending and/or receiving (for example, step S4301, step S4302) performed by the access network device in any of the above methods, which will not be repeated here.

In some embodiments, the transceiver module 6201 may include a transmitting module and/or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module 6201 may be interchangeable with a transceiver.

Figure 7A is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure. Communication device 7100 can be an access network device (e.g., a satellite-borne base station), a terminal (e.g., user equipment, etc.), a chip, a chip system, or a processor that supports the communication device to implement any of the above methods, or a chip, a chip system, or a processor that supports the terminal to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control network nodes (such as base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 7100 is used to perform any of the above methods. Optionally, one or more processors 7101 are used to call instructions to enable the communication device 7100 to perform any of the above methods.

In some embodiments, the communication device 7100 further includes one or more transceivers 7102. When the communication device 7100 includes one or more transceivers 7102, the transceiver 7102 performs at least one of the communication steps (e.g., steps S3101, S3102, S3201, and S3202, but not limited thereto) of the sending and/or receiving in the above method, and the processor 7101 performs at least one of the other steps (e.g., steps S3103, S3104, and S3203, but not limited thereto). In an alternative embodiment, the transceiver may include a receiver and/or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be used interchangeably, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably, and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

In some embodiments, the communication device 7100 further includes one or more memories 7103 for storing data. Alternatively, all or part of the memories 7103 may be located outside the communication device 7100. In alternative embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuits 7104 are connected to the memories 7103 and may be configured to receive data from the memories 7103 or other devices, or to send data to the memories 7103 or other devices. For example, the interface circuits 7104 may read data stored in the memories 7103 and send the data to the processor 7101.

The communication device 7100 described in the above embodiment may be an access network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7A. The access network device may be an independent device or may be part of a larger device. For example, the terminal may be: (1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (7) others, etc.

FIG7B is a schematic diagram of a chip structure provided by an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the chip structure 7200 shown in FIG7B , but the present disclosure is not limited thereto.

The chip 7200 includes one or more processors 7201. The chip 7200 is configured to execute any of the above methods.

In some embodiments, chip 7200 further includes one or more interface circuits 7202. Alternatively, terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 7200 further includes one or more memories 7203 for storing data. Alternatively, all or part of memory 7203 may be located external to chip 7200. Optionally, interface circuit 7202 is connected to memory 7203 and may be used to receive data from memory 7203 or other devices, or may be used to send data to memory 7203 or other devices. For example, interface circuit 7202 may read data stored in memory 7203 and send the data to processor 7201.

In some embodiments, the interface circuit 7202 performs at least one of the communication steps of sending and/or receiving in the above method. For example, the interface circuit 7202 performing the communication steps of sending and/or receiving in the above method means that the interface circuit 7202 performs data exchange between the processor 7201, the chip 7200, the memory 7203, or the transceiver device.

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

The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the above program product is a computer program product.

The embodiments of the present disclosure also provide a computer program, which, when executed on a computer, enables the computer to execute any one of the above methods.

Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the embodiments disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow from the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (24)

A communication method, performed by a terminal, wherein the terminal supports a store and forward function; the method comprises: In the case that the store and forward function is enabled in the serving cell, whether to measure the neighboring cell is determined according to the signal quality of the serving cell. The method according to claim 1, further comprising: In a case where the storage and forwarding function is enabled in the serving cell, the received time information is ignored, where the time information is used to instruct the terminal to measure a neighboring cell before a time indicated by the time information. The method according to claim 2, wherein the time information is used to indicate one of the following: The time during which the serving cell provides service to the terminal; The time for switching the feeder link between the satellite and the ground station; The time when the service link between the satellite and the terminal is switched. The method according to any one of claims 1 to 3, wherein the measuring of the neighboring cell comprises at least one of the following: Same frequency measurement; Different frequency measurement; Heterosystem measurement; Same-frequency cell measurement; Inter-frequency cell measurement; Measurement of cells in different systems. The method according to any one of claims 1 to 4, wherein the serving cell has a store and forward function enabled, and the determining whether to measure the neighboring cell based on the signal quality of the serving cell comprises one of the following: When the time information is received and the signal quality of the serving cell is greater than a first value, determining not to measure the neighboring cell; When the time information is received and the signal quality of the serving cell is less than or equal to the first value, it is determined to measure a neighboring cell. The method according to claim 5, wherein, when the time information is received and the signal quality of the serving cell is greater than the first value, determining not to measure the neighboring cell comprises one of the following: When the time information is received and the first parameter is greater than the first threshold, determining not to measure the neighboring cell; When time information is received, a first parameter is greater than a first threshold, and a second parameter is greater than a second threshold, it is determined not to measure a neighboring cell, where the first parameter and/or the second parameter is used to represent a signal quality of the serving cell. The method according to claim 5, wherein, when the time information is received and the signal quality of the serving cell is less than or equal to the first value, determining to measure the neighboring cell comprises one of the following: When the time information is received and the first parameter is less than or equal to the first threshold, determining to measure a neighboring cell; When time information is received, a first parameter is less than or equal to a first threshold, and a second parameter is less than or equal to a second threshold, it is determined to measure a neighboring cell, where the first parameter and/or the second parameter is used to represent the signal quality of the serving cell. The method according to claim 5, wherein, when the time information is received and the signal quality of the serving cell is greater than the first value, determining not to measure the neighboring cell comprises one of the following: When the time information is received and the signal quality of the serving cell is greater than a first value, determining not to measure the neighboring cell before the time indicated by the time information; When the time information is received and the signal quality of the serving cell is greater than a first value, it is determined not to measure the neighboring cell after the time indicated by the time information. The method according to claim 8, wherein, when the time information is received and the signal quality of the serving cell is greater than a first value, determining not to measure the neighboring cell before the time indicated by the time information comprises one of the following: When the time information is received and the first parameter is greater than the first threshold, determine not to measure the neighboring cell before the time indicated by the time information; When time information is received, the first parameter is greater than a first threshold value, and the second parameter is greater than a second threshold value, it is determined not to measure the neighboring cell before the moment indicated by the time information, and the first parameter and/or the second parameter are used to represent the signal quality of the serving cell. The method according to claim 8, wherein, when the time information is received and the signal quality of the serving cell is greater than a first value, determining not to measure the neighboring cell after the time indicated by the time information comprises one of the following: When the time information is received and the first parameter is greater than the first threshold, determine not to measure the neighboring cell after the time indicated by the time information; When time information is received, the first parameter is greater than a first threshold value, and the second parameter is greater than a second threshold value, after the moment indicated by the time information, it is determined not to measure the neighboring cell, and the first parameter and/or the second parameter are used to represent the signal quality of the serving cell. The method according to claim 1, wherein the serving cell has a store and forward function enabled, the method further comprising: When the time information is received and the signal quality of the serving cell is less than or equal to a first value, it is determined to measure a neighboring cell before a time indicated by the time information. The method according to claim 11, wherein, when the time information is received and the signal quality of the serving cell is less than or equal to the first value, determining the neighboring cell to measure before the time indicated by the time information comprises one of the following: When the time information is received and the first parameter is less than or equal to the first threshold, determining to measure a neighboring cell before the time indicated by the time information; When time information is received, the first parameter is less than or equal to the first threshold value, and the second parameter is less than or equal to the second threshold value, before the moment indicated by the time information, determine to measure the neighboring cell, and the first parameter and/or the second parameter is used to represent the signal quality of the serving cell. The method according to any one of claims 6, 7, 9, 10 and 12, wherein the first parameter is used to indicate the received power of the serving cell; and the second parameter is used to indicate the received signal quality of the serving cell. A communication method, performed by an access network device, wherein the access network device is deployed on a satellite; the method comprises: Sending first information, wherein the first information is used to indicate that the serving cell has enabled a store and forward function. The method according to claim 14, wherein the method further comprises: Time information is sent, where the time information is used to instruct the terminal to measure a neighboring cell before a time indicated by the time information. The method according to claim 15, wherein the time information is used to indicate one of the following: The time during which the serving cell provides service to the terminal; The time for switching the feeder link between the satellite and the ground station; The time when the service link between the satellite and the terminal is switched. The method according to claim 15 or 16, wherein the measuring the neighboring cell comprises at least one of the following: Same frequency measurement; Different frequency measurement; Heterosystem measurement; Same-frequency cell measurement; Inter-frequency cell measurement; Measurement of cells in different systems. A communication device, comprising: The processing module is configured to determine whether to measure a neighboring cell according to the signal quality of the serving cell when the store and forward function is enabled in the serving cell. A communication device, comprising: The transceiver module is configured to send first information, wherein the first information is used to indicate that the serving cell has enabled the store and forward function. A terminal, comprising: at least one processor; a memory storing instructions; When the instruction is executed by the terminal, the terminal implements the communication method according to any one of claims 1 to 13. An access network device, comprising: at least one processor; a memory storing instructions; When the instruction is executed by the access network device, the access network device implements the communication method according to any one of claims 14 to 17. A communication system comprising: A terminal configured to implement the communication method according to any one of claims 1 to 13; An access network device, configured to implement the communication method according to any one of claims 14 to 17. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 17 are implemented. A computer program product comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 17.