Communication methods, terminals, network devices and system

Abstract

The present disclosure relates to communication methods, terminals, network devices, and a system. A communication method comprises: determining first information, the first information being used for representing global navigation satellite system (GNSS) validity period information of a terminal; and, when the GNSS validity period has expired, performing extended uplink transmission on the basis of the first information. The embodiments of the present disclosure effectively prevent terminals from entering idle states, improving the performance of systems.

Description

Communication method, terminal, network device and system Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to communication methods, terminals, network devices, and systems. Background Art

[0002] In the research of wireless communication technology, if there is a long signal transmission distance between the transmitter and the receiver, the data transmission will take a long time.

[0003] In order to ensure the quality of the transmission signal, it is usually undesirable for the communication signal to be out of synchronization.

[0004] Summary of the Invention

[0005] How to perform extended uplink transmission when the GNSS validity period expires.

[0006] The embodiments of the present disclosure provide a communication method, a terminal, a network device, and a system.

[0007] According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, including: determining first information, where the first information is used to represent the validity period information of the terminal global satellite navigation system GNSS; and performing extended uplink transmission when the validity period of the GNSS expires.

[0008] According to a second aspect of an embodiment of the present disclosure, a communication method is proposed, including: when the global satellite navigation system GNSS validity period of the terminal expires, performing extended uplink transmission with the terminal, the GNSS validity period information is based on a first information representation determined by the terminal.

[0009] According to a third aspect of an embodiment of the present disclosure, a communication method is proposed, comprising: a terminal determining first information, wherein the first information is used to indicate the validity period information of the global satellite navigation system GNSS of the terminal; when the validity period of the GNSS is expired, the terminal performs extended uplink transmission; a network device performs extended uplink transmission with the terminal

[0010] According to the fourth aspect of an embodiment of the present disclosure, a terminal is proposed, including: a processing module for determining first information, wherein the first information is used to represent the validity period information of the global satellite navigation system GNSS of the terminal; and a transceiver module for extending uplink transmission information when the validity period of the GNSS expires.

[0011] According to a fifth aspect of an embodiment of the present disclosure, a network device is proposed, comprising: a transceiver module for performing extended uplink transmission with a terminal when the global satellite navigation system GNSS validity period of the terminal expires; wherein the first information is used to indicate that the GNSS validity period information is based on the first information indicated by the terminal.

[0012] According to a sixth aspect of an embodiment of the present disclosure, a terminal and one or more processors are proposed; wherein the processor is used to execute the communication method of the first aspect.

[0013] According to a seventh aspect of an embodiment of the present disclosure, a network device and one or more processors are proposed; wherein the processor is used to execute the communication method of the second aspect.

[0014] According to an eighth aspect of an embodiment of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the communication method of the first aspect, and the network device is configured to implement the communication method of the second aspect.

[0015] According to a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method of any one of the first and second aspects.

[0016] Through the embodiments of the present disclosure, the terminal is effectively prevented from entering an idle state, thereby improving the performance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] FIG1A is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0019] FIG1B is a schematic diagram showing a state of uplink and downlink timing alignment according to an embodiment of the present disclosure.

[0020] FIG1C is a schematic diagram showing a state in which uplink and downlink timings are not aligned according to an embodiment of the present disclosure.

[0021] FIG2A is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure.

[0022] FIG2B is a schematic diagram showing an end position of an extended uplink transmission according to an embodiment of the present disclosure.

[0023] FIG2C is a schematic diagram showing an end position of an extended uplink transmission according to an embodiment of the present disclosure.

[0024] FIG2D is a schematic diagram showing an end position of an extended uplink transmission according to an embodiment of the present disclosure.

[0025] FIG2E is a schematic diagram showing an end position of an extended uplink transmission according to an embodiment of the present disclosure.

[0026] FIG2F is a schematic diagram showing an end position of an extended uplink transmission according to an embodiment of the present disclosure.

[0027] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure.

[0028] FIG4 is a flow chart showing a communication method according to an embodiment of the present disclosure.

[0029] FIG5A is a schematic structural diagram of a terminal proposed in an embodiment of the present disclosure.

[0030] FIG5B is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure.

[0031] FIG6A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0032] FIG6B is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] The embodiments of the present disclosure provide a communication method, a terminal, a network device, and a system.

[0034] In a first aspect, an embodiment of the present disclosure proposes a communication method, including: determining first information, where the first information is used to represent the validity period information of the global satellite navigation system GNSS of the terminal; and performing extended uplink transmission when the validity period of the GNSS expires.

[0035] In the above embodiment, by sending target information when the GNSS validity period expires, the probability of the terminal entering the idle state due to the expiration of the GNSS information validity period is reduced, thereby improving the stability of information communication.

[0036] In combination with some embodiments of the first aspect, in some embodiments, performing extended uplink transmission when the GNSS validity period expires includes: determining transmission time domain location information of the terminal for performing extended uplink transmission.

[0037] In the above embodiment, extended uplink transmission is performed through the first information, so that the terminal can send target information based on the extended uplink transmission, thereby preventing the terminal from entering an idle state.

[0038] In combination with some embodiments of the first aspect, in some embodiments, the transmission position information includes: a starting position and a duration of the extended uplink transmission, or; a starting position and an ending position of the extended uplink transmission.

[0039] In the above embodiment, the corresponding transmission position information of the extended uplink transmission is clarified, thereby enabling the terminal to complete the transmission of the target information at a valid transmission position.

[0040] In the above embodiment, by using the GNSS validity period expiration position as the starting position, the terminal can immediately enter the extended uplink transmission when the GNSS validity period expires, thereby reducing the transmission delay based on the extended uplink transmission.

[0041] In combination with some embodiments of the first aspect, in some embodiments, the end position of the extended uplink transmission is the end position of the first synchronization timer TAT, and the first TAT is the TAT activated by the first advance instruction TAC.

[0042] In the above embodiment, based on this, it can be ensured that the terminal can complete the information transmission at the end position of the first TAT, ensure the communication integrity, and avoid unnecessary resource overhead of extending uplink transmission.

[0043] In combination with some embodiments of the first aspect, in some embodiments, when the value of the first synchronization timer TAT is configured as a predefined value, the end position of the extended uplink transmission is determined based on the preconfigured value.

[0044] In the above embodiment, the end position of the extended uplink transmission can be adaptively adjusted according to the value configured by the TAT, so as to avoid unnecessary resource overhead.

[0045] In combination with some embodiments of the first aspect, in some embodiments, when the terminal performs extended uplink transmission, in response to the terminal obtaining the second TAT activated by the second TAC, the end position of the extended uplink transmission is the end position of the first TAT.

[0046] In the above embodiment, the terminal may be enabled to have the capability of performing only one extension when acquiring multiple TACs, thereby enabling the terminal to communicate in this scenario.

[0047] In combination with some embodiments of the first aspect, in some embodiments, when the terminal performs extended uplink transmission, in response to the terminal obtaining the second TAT activated by the second TAC, the end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

[0048] In the above embodiment, the terminal may be enabled to have the capability of performing multiple extensions only when acquiring multiple TACs, thereby enabling the terminal to communicate in this scenario.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: obtaining second information, where the second information is used to indicate whether the terminal can support multiple extended uplink transmissions; and the end position of the extended uplink transmission is determined based on the second information.

[0050] In the above embodiment, the terminal can indicate the number of extensions through the second information, thereby indirectly determining the end position of the extended uplink transmission, making the solution more widely applicable.

[0051] In combination with some embodiments of the first aspect, in some embodiments, when the second information indicates support for multiple extended uplink transmissions, in response to the terminal obtaining a third TAT activated by a third TAC during the extended uplink transmission process, the end position of the extended uplink transmission is determined based on the remaining duration of the third TAT.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the second information indicates that the terminal supports multiple extended uplink transmissions and indicates the number of extended uplink transmissions supported by the terminal;

[0053] The end position of the extended uplink transmission is determined based on the number of supported extensions.

[0054] With reference to some embodiments of the first aspect, in some embodiments, the second information is carried in a TAC currently acquired by the terminal;

[0055] In response to the second information indicating that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the TAT activated by the currently acquired TAC.

[0056] In combination with some embodiments of the first aspect, in some embodiments, when the second information indicates that the terminal does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently being performed by the terminal.

[0057] In combination with some embodiments of the first aspect, in some embodiments, the second information is at least one of the following: radio resource control RRC signaling; media access control control element MAC CE; physical layer signaling.

[0058] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving third information, where the third information is used to instruct the terminal to perform extended uplink transmission.

[0059] On the second aspect, an embodiment of the present disclosure proposes a communication method, including: when the validity period of the terminal's global satellite navigation system GNSS expires, performing extended uplink transmission with the terminal, and the GNSS validity period information is based on the first information determined by the terminal. In the above embodiment, by obtaining target information when the GNSS validity period expires, the probability of the terminal entering an idle state due to the expiration of the GNSS information is reduced, thereby improving the stability of information communication.

[0060] In combination with some embodiments of the second aspect, in some embodiments, extended uplink transmission is performed with the terminal based on transmission time domain position information of the extended uplink transmission.

[0061] In combination with some embodiments of the second aspect, in some embodiments, the transmission time domain location information includes: the starting position and duration of the extended uplink transmission, or; the starting position and end position of the extended uplink transmission.

[0062] In combination with some embodiments of the second aspect, in some embodiments, the starting position is a GNSS validity expired position.

[0063] In combination with some embodiments of the second aspect, in some embodiments, the method also includes: sending a first timing advance instruction TAC to the terminal, the first TAC is used to activate a first synchronization counter TAT; the first information includes: the first TAT activated by the first TAC; the end position of the extended uplink transmission is the end position of the first TAT.

[0064] In combination with some embodiments of the second aspect, in some embodiments, a first timing advance instruction TAC is sent to the terminal, and the first TAC is used to activate a first synchronization counter TAT; when the value of the first synchronization timer TAT is configured to a predefined value, the end position of the extended uplink transmission is determined by the terminal based on the preconfigured value.

[0065] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: in the case of extended uplink transmission, sending a second TAC to the terminal, the second TAC being used to activate a second TAT; the end position of the extended uplink transmission is the end position of the first TAT.

[0066] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: in the case of extended uplink transmission, sending a second TAC to the terminal, the second TAC being used to activate a second TAT; the end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

[0067] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: sending second information, where the second information is used to indicate whether the terminal can support multiple extended uplink transmissions; and the end position of the extended uplink transmission is determined based on the second information.

[0068] In combination with some embodiments of the second aspect, in some embodiments, when the second information indicates that the terminal supports multiple extended uplink transmissions, such as the second information indicates support for N extensions, the end position of the extended uplink transmission is determined based on the remaining duration of the Nth TAT activated by the Nth TAC, and the third TAC is the TAC received by the terminal during the extended uplink transmission process.

[0069] In combination with some embodiments of the second aspect, in some embodiments, the second information indicates that the terminal supports multiple extended uplink transmissions and indicates the number of extensions supported by the terminal for extended uplink transmission; wherein the end position of the extended uplink transmission is determined based on the number of extensions supported.

[0070] In combination with some embodiments of the second aspect, in some embodiments, the second information is carried by the TAC currently obtained by the terminal; in response to the second information indicating that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the TAT activated by the currently obtained TAC.

[0071] In combination with some embodiments of the second aspect, in some embodiments, when the second information indicates that the terminal does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently being performed by the terminal.

[0072] In combination with some embodiments of the second aspect, in some embodiments, the second information is at least one of the following: radio resource control RRC signaling; media access control control element MAC CE; physical layer signaling.

[0073] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: receiving third information, where the third information is used to instruct the terminal to perform extended uplink transmission.

[0074] In a third aspect, an embodiment of the present disclosure proposes a positioning method, which includes: a terminal determines first information, where the first information is used to represent the validity period information of the global satellite navigation system GNSS of the terminal; when the validity period of the GNSS expires, the terminal performs extended uplink transmission; and a network device performs extended uplink transmission with the terminal.

[0075] In the fourth aspect, an embodiment of the present disclosure proposes a terminal, including: a processing module for determining first information, where the first information is used to represent the validity period information of the terminal's global satellite navigation system GNSS; and a transceiver module for extending uplink transmission information when the GNSS validity period expires.

[0076] In combination with some embodiments of the fourth aspect, in some embodiments, the transceiver module performs extended uplink transmission in the following manner: determining transmission time domain position information of the terminal performing extended uplink transmission.

[0077] In combination with some embodiments of the fourth aspect, in some embodiments, the transmission time domain location information includes: the starting position and duration of the extended uplink transmission, or; the starting position and end position of the extended uplink transmission.

[0078] In combination with some embodiments of the fourth aspect, in some embodiments, the starting position is a GNSS validity expired position.

[0079] In combination with some embodiments of the fourth aspect, in some embodiments, the end position of the extended uplink transmission is the end position of the first synchronization timer TAT, and the first TAT is the TAT activated by the first advance instruction TAC.

[0080] In combination with some embodiments of the fourth aspect, in some embodiments, when the value of the first synchronization timer TAT is configured as a predefined value, the end position of the extended uplink transmission is determined based on the preconfigured value.

[0081] In combination with some embodiments of the fourth aspect, in some embodiments, when the terminal performs extended uplink transmission, in response to the terminal obtaining the second TAT activated by the second TAC, the end position of the extended uplink transmission is the end position of the first TAT.

[0082] In combination with some embodiments of the fourth aspect, in some embodiments, when the terminal performs extended uplink transmission, in response to the transceiver module obtaining the second TAT activated by the second TAC, the end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

[0083] In combination with some embodiments of the fourth aspect, in some embodiments, the transceiver module is used to obtain second information, where the second information is used to indicate whether the terminal can support multiple extended uplink transmissions; the end position of the extended uplink transmission is determined based on the second information.

[0084] In combination with some embodiments of the fourth aspect, in some embodiments, when the second information indicates support for multiple extended uplink transmissions, in response to the terminal obtaining a third TAT activated by a third TAC during the extended uplink transmission process, the end position of the extended uplink transmission is determined based on the remaining duration of the third TAT.

[0085] In conjunction with some embodiments of the fourth aspect, in some embodiments, the second information indicates that the terminal supports multiple extended uplink transmissions and indicates the number of extended uplink transmissions supported by the terminal;

[0086] The end position of the extended uplink transmission is determined based on the number of supported extensions and the number of currently performed extensions.

[0087] With reference to some embodiments of the fourth aspect, in some embodiments, the second information is carried in a TAC currently obtained by the terminal;

[0088] In response to the second information indicating that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the TAT activated by the currently acquired TAC.

[0089] In combination with some embodiments of the fourth aspect, in some embodiments, when the second information indicates that the terminal does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently being performed by the terminal.

[0090] In combination with some embodiments of the fourth aspect, in some embodiments, the second information is at least one of the following: radio resource control RRC signaling; media access control control element MAC CE; physical layer signaling.

[0091] In combination with some embodiments of the fourth aspect, in some embodiments, the transceiver module is further used to: receive third information, where the third information is used to indicate that the terminal supports extended uplink transmission.

[0092] In the fifth aspect, an embodiment of the present disclosure proposes a network device, including: a transceiver module, used to perform extended uplink transmission with the terminal when the validity period of the terminal's global satellite navigation system GNSS expires; wherein the GNSS validity period information is based on a first information representation determined by the terminal.

[0093] In combination with some embodiments of the fifth aspect, in some embodiments, the transceiver module performs extended uplink transmission with the terminal based on the transmission time domain position information of the extended uplink transmission.

[0094] In combination with some embodiments of the fifth aspect, in some embodiments, the transmission time domain location information includes: the starting position and duration of the extended uplink transmission, or; the starting position and end position of the extended uplink transmission.

[0095] In combination with some embodiments of the fifth aspect, in some embodiments, the starting position is a GNSS validity expired position.

[0096] In combination with some embodiments of the fifth aspect, in some embodiments, the transceiver module is also used to: send a first timing advance instruction TAC to the terminal, the first TAC is used to activate a first synchronization counter TAT; the first information includes: the first TAT activated by the first TAC; the end position of the extended uplink transmission is the end position of the first TAT.

[0097] In combination with some embodiments of the fifth aspect, in some embodiments, when the value of the first synchronization timer TAT is configured as a predefined value, the end position of the extended uplink transmission is determined by the terminal based on the preconfigured value.

[0098] In combination with some embodiments of the fifth aspect, in some embodiments, the transceiver module is also used to: send a second TAC to the terminal in the case of extended uplink transmission, and the second TAC is used to activate a second TAT; the end position of the extended uplink transmission is the end position of the first TAT.

[0099] In combination with some embodiments of the fifth aspect, in some embodiments, the transceiver module is also used to: send a second TAC to the terminal in the case of extended uplink transmission, and the second TAC is used to activate a second TAT; the end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

[0100] In combination with some embodiments of the fifth aspect, in some embodiments, the transceiver module is also used to: send second information, where the second information is used to indicate whether the terminal can support multiple extended uplink transmissions; and the end position of the extended uplink transmission is determined based on the second information.

[0101] In combination with some embodiments of the fifth aspect, in some embodiments, when the second information indicates that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is determined based on the remaining duration of the third TAT activated by the third TAC, and the third TAC is the TAC received by the terminal during the extended uplink transmission process.

[0102] With reference to some embodiments of the fifth aspect, in some embodiments, the second information indicates that the terminal supports multiple extended uplink transmissions and indicates an extended number of times the terminal supports extended uplink transmissions;

[0103] The end position of the extended uplink transmission is determined based on the number of supported extensions and the number of currently performed extensions.

[0104] With reference to some embodiments of the fifth aspect, in some embodiments, the second information is carried in a TAC currently obtained by the terminal;

[0105] In response to the second information indicating that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the TAT activated by the currently acquired TAC.

[0106] In combination with some embodiments of the fifth aspect, in some embodiments, when the second information indicates that the terminal does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently being performed by the terminal.

[0107] In combination with some embodiments of the fifth aspect, in some embodiments, the second information is at least one of the following: radio resource control RRC signaling; media access control control element MAC CE; physical layer signaling.

[0108] In combination with some embodiments of the fifth aspect, in some embodiments, the transceiver module is further used to send third information, where the third information is used to indicate that the terminal supports extended uplink transmission.

[0109] In a sixth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; wherein the processor is used to execute the communication method of the first aspect.

[0110] In a seventh aspect, an embodiment of the present disclosure proposes a network device, comprising: one or more processors; wherein the processor is used to execute the communication method of the second aspect.

[0111] In an eighth aspect, an embodiment of the present disclosure proposes a communication system, comprising: a terminal and a network device, wherein the terminal is configured to implement the communication method of the first aspect, and the network device is configured to implement the communication method of the second aspect.

[0112] In a ninth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions, which, when the instructions are executed on a communication device, enables the communication device to execute any one of the communication methods of the first aspect and the second aspect.

[0113] It is understandable that the above-mentioned terminal, access network device, first network element, second network element, core network device, communication system, storage medium, program product, computer program, chip or chip system are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0114] The present disclosure provides communication methods, terminals, network devices, and systems. In some embodiments, the terms "communication method" and "information processing method" and "data processing method" are interchangeable; the terms "communication device" and "information processing device" and "data processing device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0120] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0130] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0135] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0136] 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.

[0137] FIG1A is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1A , a communication system 100 includes a terminal 101 and a network device 102 .

[0138] 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.

[0139] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0140] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (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 at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0141] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0142] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0143] In some embodiments, the core network device may be a single device including a first network element, a second network element, etc., or may be a plurality of devices or a group of devices, each including all or part of the first network element, the second network element, etc. The network element may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0144] 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.

[0145] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system may include all or part of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities may be arbitrary, and 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.

[0146] 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), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (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 utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0147] In the research of wireless communication technology, if there is a long signal transmission distance between the transmitter and the receiver, the data transmission will take a long time.

[0148] In some embodiments, there is a scenario where there is a long signal transmission distance between the transmitting end and the receiving end, such as a satellite communication scenario, and the signal transmission between the terminal and the satellite can be understood as the signal transmission between the transmitting end and the receiving end.

[0149] It can be understood that the satellite communication scenario mentioned in the above embodiments refers to a scenario in which radio communication equipment (eg, a terminal) on the ground communicates using a satellite as a relay.

[0150] In some embodiments, in a communication scenario with both uplink and downlink communication, in order to ensure the quality of the transmitted signal, it is generally desired that the uplink and downlink communication signals remain synchronized in the time domain, that is, "timing alignment" is desired.

[0151] For example, Figure 1B is a schematic diagram illustrating a state of uplink and downlink timing alignment according to an embodiment of the present disclosure. As shown in Figure 1B , for uplink information obtained by a network device (i.e., the gNB UL in the figure) and downlink information sent by the network device (i.e., the gNB DL in the figure), the time domain resources where the time domain unit number "n" resides are aligned. This can be understood as achieving timing alignment for uplink and downlink communications for the network device.

[0152] In some embodiments, in a communication scenario with an uplink and downlink relationship, in order to ensure the quality of the transmitted signal, it is generally undesirable for the uplink and downlink communication signals to be out of sync in the time domain, that is, "timing misalignment" is undesirable.

[0153] For example, Figure 1C is a schematic diagram illustrating a state of uplink and downlink timing misalignment according to an embodiment of the present disclosure. As shown in Figure 1C, for the uplink information obtained by the network device (i.e., the gNB UL in the figure) and the downlink information sent by the network device (i.e., the gNB DL in the figure), the time domain resources where the time domain unit number "n" resides are misaligned. This can be understood as a timing misalignment of uplink and downlink communications for the network device.

[0154] In order to avoid the problem of misalignment of uplink and downlink communications, for communications with uplink and downlink relationships, the transmission delay can be compensated by introducing a timing offset value parameter, so that timing alignment can be achieved for communications with uplink and downlink relationships.

[0155] Optionally, the timing offset value parameter can be applied to various operations, such as: transmission of the physical uplink shared channel (PUSCH) based on downlink control information (DCI) scheduling, transmission based on hybrid automatic repeat request (HARQ), and transmission of the media access layer control element (MAC Control Element, MAC CE).

[0156] However, in some embodiments, the terminal needs to obtain location information to determine the timing compensation of the uplink transmission. For example, the terminal can determine its own location information through a measurement module related to the Global Navigation Satellite System (GNSS).

[0157] It is understandable that GNSS information has a validity period (also known as reliability time). After the terminal obtains the GNSS measurement result through measurement, the terminal reports the GNSS validity period information (Global Navigation Satellite System validity duration) to the network device.

[0158] It is understandable that when the GNSS validity period expires, the terminal will enter an idle state (IDLE). When the terminal enters the IDLE state, it needs to re-acquire the GNSS, which will introduce additional delays in the communication process.

[0159] In some embodiments, when the GNSS validity period information expires, an extended uplink transmission is used to maintain uplink transmission to prevent the terminal from entering the IDLE state. However, there is no clear solution for performing extended uplink transmission.

[0160] Based on the above problems, the embodiments of the present disclosure provide a communication method, a terminal, a network device, and a system.

[0161] FIG2A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2A , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0162] Step S2101: Terminal 101 determines first information.

[0163] In some embodiments, the first information is used to indicate information about the validity period of the GNSS corresponding to the terminal 101 .

[0164] In some embodiments, the name of the first information is not limited, and it can be, for example, “GNSS validity period information” or “GNSS validity duration information”.

[0165] Optionally, the first information is used by the terminal 101 to perform extended uplink transmission. For example, the terminal 101 determines the end position of the GNSS validity period based on the first information, and uses the end position of the GNSS validity period as the start position of the extended uplink transmission, thereby performing extended uplink transmission.

[0166] In some embodiments, when the first information is used to represent the GNSS validity period information corresponding to the terminal 101 , the first information is determined based on the terminal 101 .

[0167] Exemplarily, the terminal 101 performs measurement based on its own GNSS module to obtain the first information.

[0168] In some embodiments, the end position of the extended uplink transmission can be determined by the terminal 101 by obtaining indication information sent by the network device 102.

[0169] Optionally, the indication information includes, for example, a timed advance command (TAC).

[0170] Exemplarily, the first TAC may be the first TAC received by the terminal 101 that meets the conditions for extension. The terminal 101 determines the end position of the extended uplink transmission based on the first synchronization timer (Timer Absolute Time, TAT) activated corresponding to the first TAC. The first TAC may be: 1) a TAC received before the expiration of the GNSS validity period, whose TAT has an end position of validity that is later than the GNSS validity period expiration position (point b). If there are multiple TACs that meet this condition, the first TAC that meets this condition is the first TAC; 2) a TAC that has not been received before the expiration of the GNSS validity period, whose TAT has an end position of validity that is later than the GNSS validity period expiration position (point b). In this case, the first TAC received after the expiration of the GNSS validity period is the first TAC.

[0171] For example, as shown in FIG2B , the terminal 101 obtains a TAC sent from the network device 102 at the time domain position of point a before the GNSS expires. This TAC can be referred to as the first TAC, and the TAT activated by the first TAC can be understood as the first TAT. The terminal does not receive a TAC before point a, or the end position of the TAT activated by the received TAC is not after point b.

[0172] In another embodiment, if the terminal does not receive a TAC before the GNSS expiration position b, or the end position of the TAT activated by the received TAC is before point b, then the first TAC is the first TAC received by the terminal after point b. In step S2102 , the terminal 101 performs extended uplink transmission with the network device 102 .

[0173] In some embodiments, the terminal 101 performs extended uplink transmission based on the first information.

[0174] It can be understood that the extended uplink transmission is to perform time domain resource extension after the GNSS validity period of the terminal 101 expires, and perform uplink transmission of information based on the extended time domain resources.

[0175] For example, Figure 2B is a schematic diagram illustrating an extended uplink transmission end location according to an embodiment of the present disclosure. Assuming that point b represents the time domain location where the GNSS validity period of terminal 101 expires, then using the time domain resources extended after point a for uplink transmission of information can be understood as extended uplink transmission.

[0176] In some embodiments, when the GNSS validity period expires, the terminal 101 extends the uplink transmission information based on the first information.

[0177] In some embodiments, the terminal 101 performs extended uplink transmission based on the first information.

[0178] In some embodiments, the terminal 101 performs extended uplink transmission based on the first information, including: determining transmission position information of the terminal 101 performing the extended uplink transmission based on the first information.

[0179] Optionally, the terminal 101 performs extended uplink transmission based on the first information, including determining transmission position information for the terminal 101 to perform extended uplink transmission based on the first information, and performing extended uplink transmission based on the transmission position information.

[0180] In some embodiments, the transmission location information is determined by the terminal 101 based on configuration information of the network device 102 .

[0181] In some embodiments, the transmission location information includes any one of the following: a starting location and a duration of the extended uplink transmission, or a starting location and an ending location of the extended uplink transmission.

[0182] Based on this, determining the extended transmission location information also includes the following two methods: determining the starting location and duration of the extended uplink transmission, or determining the starting location and ending location of the extended uplink transmission.

[0183] It can be understood that, when the starting position and duration of the extended uplink transmission are known, the ending position of the extended uplink transmission can be obtained based on the two.

[0184] It can be understood that the transmission position information (eg, the starting position, or the ending position, etc.) represents the time domain position information, and its unit may be, for example, a time slot or a symbol.

[0185] In some embodiments, terms such as "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "symbol", and "transmission time interval (TTI)" can be used interchangeably.

[0186] In some embodiments, the starting position of the extended uplink transmission is a GNSS validity period expiration position, wherein the GNSS validity period expiration position is determined based on the first information. For example, the terminal 101 performs measurement using its own GNSS module to obtain GNSS measurement information and the validity period of the GNSS information.

[0187] In some embodiments, the end position of the extended uplink transmission may be determined based on a time alignment timer (TAT).

[0188] In some embodiments, the TAT may be a TAT activated by a Timing Advance Command (TAC).

[0189] In some embodiments, when TAT is activated, the validity period of the GNSS of the terminal 101 does not end.

[0190] In some embodiments, the end position of the extended uplink transmission may be the end position of the TAT.

[0191] In some embodiments, when the terminal 101 determines that the GNSS is expired, the end position corresponding to the activated TAT may be used as the end position of the extended transmission.

[0192] Continuing with the embodiment of FIG. 2B , in FIG. 2B , the end position of the first TAT corresponds to the time domain position of point c.

[0193] 2B , in FIG. 2B , the duration of the extended uplink transmission can be understood as the duration between the end position of the GNSS validity period and the end position of the first TAT, ie, the time domain position of point b and the time domain position of point c.

[0194] Continuing with the embodiment of FIG. 2B , the time domain location at which the GNSS validity period expires is the time domain location of point b, which is between the time domain location of point a and the location at which the first TAT ends (the time domain location of point c). This allows terminal 101 to use the end location of the first TAT as the end location of the extended uplink transmission based on the indication of the first information, thereby completing the extended uplink transmission.

[0195] It can be understood that the duration of the extended uplink transmission is the time interval between the time domain position of point b and the time domain position of point c.

[0196] It is understandable that the remaining time may also be referred to as the first TAT remaining duration, which is represented in FIG2B as the time interval between the time domain positions of point b and point c.

[0197] In some embodiments, when the terminal 101 determines that the GNSS is expired, the end position of the extended uplink transmission may also be determined based on the remaining time of the first TAT.

[0198] In some embodiments, the value of the first TAT may be a predefined value.

[0199] In some embodiments, when the value of the first TAT is configured as a predefined value, the position of the extended uplink transmission is determined based on the preconfigured value.

[0200] Exemplarily, Figure 2C is a schematic diagram of an extended uplink transmission end position shown in accordance with an embodiment of the present disclosure. As shown in Figure 2C, the time domain position corresponding to the GNSS validity period expiration position is the time domain position of point b, and the terminal 101 obtains the first TAC sent from the network device at the time domain position of point a before the GNSS expires. The TAT activated by the first TAC can be understood as the first TAT. The value of the first TAT is a predefined value. For example, the value of the first timer TAT is configured as a predefined value (infinite), and the predefined value is, for example, the interval between the time domain position corresponding to point a and the time domain position corresponding to point c in Figure 2C.

[0201] In this case, the end location of the extended uplink transmission can be determined by preconfiguration based on a preconfigured value. For example, in Figure 2C, the GNSS validity period expiration location (the time domain location of point b) is used as the initial location of the extended uplink transmission, and the preconfigured value represents the configured duration. Then, given the initial location and duration of the extended uplink transmission, the end location of the extended uplink transmission is determined to be the time domain location of point d.

[0202] It can be understood that the duration of the extended uplink transmission can be understood as the interval between the time domain position of point b and the time domain position of point d.

[0203] It can be understood that the above embodiment describes the description of determining the transmission position information of the extended uplink transmission when the terminal 101 supports one extended uplink transmission.

[0204] In the disclosed embodiment, if terminal 101 receives a new TAC during the extended uplink transmission period, it is subsequently referred to as a second TAC. The TAT activated by the second TAC is referred to as the second TAT. The second TAC is not limited to the second received TAC; rather, any new TAC received during the extended period can be referred to as the second TAC.

[0205] On the one hand, the transmission position information of the extended uplink transmission can be determined based on the second TAT. On the other hand, the extended uplink transmission may not be performed, that is, the end position of the extended uplink transmission is the end position of the currently performed extended uplink transmission.

[0206] In some embodiments, if multiple (more than one) extended uplink transmissions are supported for terminal 101, and if terminal 101 obtains a second TAC during the Kth extended uplink transmission, it is necessary to determine the transmission location information for the extended uplink transmission for this situation. In some embodiments, if terminal 101 obtains a second TAC during the Kth extended uplink transmission, it is not necessary to perform the extended uplink transmission. The end position of the extended uplink transmission is the end position of the Kth extended uplink transmission.

[0207] It should be noted that, in this case, the determination of the starting position in the transmission position information is the same as the content of the corresponding transmission position information when the first TAC is obtained, and will not be repeated here.

[0208] In some embodiments, during the Kth extended uplink transmission, the terminal 101 obtains the second TAC and can perform the extended uplink transmission. The end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

[0209] In some embodiments, the terminal 101 acquires the second TAC during the Kth extended uplink transmission and can perform extended uplink transmission, for example, performing the K+1th extension, and the end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

[0210] Exemplarily, FIG2D is a schematic diagram of an extended uplink transmission end position shown in accordance with an embodiment of the present disclosure. As shown in FIG2D , the time position corresponding to the GNSS validity period expiration position is the time domain position of point b, and the terminal 101 obtains the first TAC sent from the network device 102 at the time domain position of point a before the GNSS expires, and the TAT activated by the first TAC can be understood as the first TAT. It can be understood that the time interval corresponding to the first TAT is the time interval between the time domain position of point a and the time domain position of point e. The terminal 101 determines to start the extended uplink transmission at the time domain position of point b, that is, the time domain position of point b is used as the starting position of the extended uplink transmission. At the time domain position of point e, the terminal 101 obtains the second TAC sent by the network device 102, and the terminal activates the second TAT based on the second TAC, wherein, as shown in FIG2D , the effective time interval of the second TAT corresponds to the time interval between the time domain position of point e and the time domain position of point c.

[0211] In one example, the terminal 101 does not continue the extended uplink transmission, and the end position of the extended uplink transmission is the time domain position corresponding to the point e.

[0212] In one example, terminal 101 determines the end position of the extended uplink transmission based on the remaining duration of the second TAT. For example, if the time domain position of the end point corresponding to the second TAT is used as the end position of the extended transmission, terminal 101 uses the time domain position of point c as the end position of the extended transmission.

[0213] It can be understood that in the case of Figure 2D (that is, the time position at which the first TAT ends coincides with the time position at which the second TAC is obtained), the second TAT is the TAT activated in response to the second TAC, and the remaining duration of the second TAT can be understood as the time interval between the time domain position of point e and the time domain position of point c.

[0214] It is understood that the time domain position of the second TAT reception in the embodiment of the present disclosure is not limited, and may be before, after, or coincide with the end position of the first TAT.

[0215] Figure 2E is a schematic diagram of an extended uplink transmission end position according to an embodiment of the present disclosure. As shown in Figure 2E, the embodiment of Figure 2D is continued (the meaning of each point is the same as that of Figure 2D and will not be repeated here). In Figure 2E, when the time position at which the first TAT ends is after the time position of the second TAC is obtained, the second TAT is the TAT activated in response to the second TAC, and the remaining duration of the second TAT can be understood as the time interval between the time domain position of point e and the time domain position of point c.

[0216] In some embodiments, terminal 101 may also obtain second information.

[0217] In some embodiments, the second information is used to indicate whether the terminal 101 supports multiple extended uplink transmissions.

[0218] In some embodiments, the second information includes at least one of the following: Radio Resource Control (RRC) signaling, Media Access Control Controller Engine (MAC CE), or physical layer signaling.

[0219] In some embodiments, the end position of the extended uplink transmission is determined based on the second information.

[0220] In some embodiments, the second information indicates that the terminal supports multiple extended uplink transmissions. When the terminal 101 receives the second information, it determines that multiple extended uplink transmissions can be performed. During the extended uplink transmission, if a new TAC is received (hereinafter referred to as a third TAC, and the TAT activated by the third TAC is referred to as a third TAT), the terminal 101 can determine the end position of the extended uplink transmission based on the second information and / or the third TAT activated by the third TAC.

[0221] The second information may also indicate an extension count. This extension count may be the total number of extensions the terminal can perform for extended transmissions, or it may be an additional extension count (i.e., an extension count in addition to the first extension). For example, if the second information indicates a total extension count of n, the terminal can perform a maximum of n extended uplink transmissions. If the second information indicates an additional extension count of n, the terminal can perform a maximum of n+1 extended uplink transmissions.

[0222] In one example, the second information indicates that the terminal supports multiple extended uplink transmissions and indicates the number of times the terminal supports extending the extended uplink transmission, and the terminal determines the end position of the extended uplink transmission based on the supported number of extensions.

[0223] Exemplarily, Figure 2F is a schematic diagram of an extended uplink transmission end position shown in accordance with an embodiment of the present disclosure. As shown in Figure 2F, the time position corresponding to the end position of the GNSS validity period expiration is the time domain position of point b. The terminal 101 obtains the first TAC sent from the network device at the time domain position of point a before the GNSS expires, and the TAT activated by the first TAC can be understood as the first TAT. The time position at which the first TAT ends is the time domain position of point e. At the time domain position of point e, the terminal 101 obtains the second TAC sent by the network device 102. The TAT activated by the second TAC can be understood as the second TAT, and the time domain position at which the second TAT ends is the time domain position of point c. Within the second TAT time interval, for example, the time position is the time domain position of point d, the terminal 101 obtains the third TAC sent by the network device 102, the third TAC activates the third TAT, and the time position at which the third TAT ends is the time domain position of point e.

[0224] In one example, if the second information obtained by terminal 101 indicates that it can support extended uplink transmission, for example, indicating that terminal 101 can support two extended uplink transmissions, then terminal 101 can perform two extended uplink transmissions based on the second information. That is, although the third TAC is received at the time domain position of point d and the third TAT is activated, because terminal 101 can only perform two extended uplink transmissions based on the second information, the time domain position of point c (i.e., the end position of the second TAT) is determined as the end position of the extended uplink transmission.

[0225] In one example, if the second information obtained by the terminal 101 indicates that it can support extended uplink transmission, for example, indicating that the terminal 101 can support 3 extended uplink transmissions (the total number of extensions is 3), then the terminal 101 can perform 3 extended uplink transmissions based on the second information. That is, the terminal 101 determines the time domain position of the extended uplink transmission based on the remaining duration of the third TAT activated by the third TAC received at the time domain position of point d. For example, the end position of the third TAT activated by the third TAC is determined as the time domain position of the extended uplink transmission, that is, the time domain position of point e (that is, the end position of the third TAT) is determined as the end position of the extended uplink transmission.

[0226] In some embodiments, when the second information indicates that the terminal 101 does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently being performed by the terminal.

[0227] In one example, the second information indicates that the terminal 101 does not support multiple extended uplink transmissions, for example, the terminal supports one extended uplink transmission. Even if the terminal 101 receives a third TAT activated by a third TAC during the extended uplink transmission process, the end position of the extended uplink transmission is still the end position of the current extended uplink transmission.

[0228] Optionally, when the second information indicates that the terminal 101 supports 0 extended uplink transmissions, the end position of the extended uplink transmission is the initial end position of the uplink transmission, which can be understood as no extension.

[0229] It can be understood that, in the above embodiment, the second information indicates the number of extension times, thereby indirectly determining the end position of the extended uplink transmission.

[0230] In some embodiments, the second information is carried in the TAC currently acquired by the terminal 101 .

[0231] Optionally, the second information is the currently acquired TAC.

[0232] In some embodiments, when the second information is carried in the TAC currently acquired by the terminal 101, the second information may indicate that the terminal 101 supports extended uplink transmission, or the second information indicates that the terminal 101 does not support extended uplink transmission.

[0233] In some embodiments, in response to the second information indicating that the terminal 101 supports extended uplink transmission, the end position of the extended uplink transmission is the TAT activated by the currently acquired TAC.

[0234] In some embodiments, in response to the second information indicating that terminal 101 does not support extended uplink transmission, the end position of the extended uplink transmission is the end position of the previous extended uplink transmission. The end position of the previous extended uplink transmission can also be understood as the end position of the extended uplink transmission currently being performed by the terminal.

[0235] In some embodiments, any of the first, second, and third TACs involved in the embodiments of the present disclosure may be the TAC received by the terminal for the Mth time. The TAC received for the Mth time is used to activate the mth TAT. M and m may be equal or unequal. M and m are positive integers. That is, the first, second, and third TACs are not limited to being the first, second, or third TACs received.

[0236] It is understood that in the embodiment of the present disclosure, M and m can be determined based on the number of extension times of extended transmission supported by the terminal. For example, if the number of extension times supported is L, the values ​​of M and m can be greater than or equal to L.

[0237] In some embodiments, the network device sends third information, and the terminal receives the third information, where the third information is used to instruct the terminal to perform extended uplink transmission.

[0238] In some embodiments, the terminal reports capability indication information to the network, where the capability indication information is used to indicate whether the terminal supports maintaining its uplink transmission capability when the original GNSS validity duration expires, ie, whether the terminal supports extended uplink transmission.

[0239] The terminal receives third information, such as indication information, sent by the network device and determines that it can support maintaining its uplink transmission (extended UL transmission) when the original GNSS validity duration expires, that is, it can perform extended uplink transmission.

[0240] 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.

[0241] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0242] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0243] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, and terms such as "physical uplink shared channel (PUSCH)" and "UL data" can be used interchangeably.

[0244] In some embodiments, terms such as "moment", "time point", "time", "time position", "time domain position", "moment point" can be replaced with each other, and terms such as "duration", "period", "time window", "window", "time" can be replaced with each other.

[0245] 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.

[0246] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0247] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset 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 first A, etc., but not limited to this.

[0248] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0249] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 and S2102. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, and step S2101 + step S2102 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0250] In some embodiments, steps S2101 and S2102 may be executed in an interchanged order or simultaneously.

[0251] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0252] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2A , FIG. 2B , FIG. 2C , FIG. 2D , FIG. 2E , and FIG. 2F .

[0253] FIG3 is a flow chart 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:

[0254] Step S3101, determine the first information.

[0255] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2A, and other related parts of the embodiments involved in Figures 2A, 2B, 2C, 2D, 2E and 2F, which will not be repeated here.

[0256] Step S3102: perform extended uplink transmission.

[0257] The optional implementation of step S3102 can be found in the optional implementation of step S2102 in Figure 2A, and other related parts in the embodiments involved in Figures 2A, 2B, 2C, 2D, 2E and 2F, which will not be repeated here.

[0258] In some embodiments, when the GNSS validity period expires, extended uplink transmission is performed based on the first information.

[0259] In some embodiments, the transmission time domain location information includes: a starting position and a duration of the extended uplink transmission, or; a starting position and an ending position of the extended uplink transmission.

[0260] In some embodiments, the starting position is a GNSS validity period expiration position. In some embodiments, the first information includes: an end position of the extended uplink transmission, which is an end position of a first synchronization timer TAT, and the first TAT is a TAT at which the first advance instruction TAC is activated.

[0261] In some embodiments, when the value of the first synchronization timer TAT is configured as a predefined value, the end position of the extended uplink transmission is determined based on the preconfigured value.

[0262] In some embodiments, when the terminal performs extended uplink transmission, in response to the terminal acquiring a second TAT activated by a second TAC, the end position of the extended uplink transmission is the end position of the first TAT.

[0263] In some embodiments, in response to the terminal acquiring the second TAT activated by the second TAC, the end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

[0264] In some embodiments, the method further includes: acquiring second information, the second information being used to indicate whether the terminal can support multiple extended uplink transmissions, and determining an end position of the extended uplink transmission based on the second information.

[0265] In some embodiments, when the second information indicates support for multiple extended uplink transmissions, in response to the terminal obtaining a third TAT activated by a third TAC during the extended uplink transmission process, the end position of the extended uplink transmission is determined based on the remaining duration of the third TAT.

[0266] In some embodiments, the second information indicates that the terminal supports multiple extended uplink transmissions and indicates the number of times the terminal supports extended uplink transmission. The end position of the extended uplink transmission is determined based on the number of times the extended uplink transmission is supported.

[0267] In some embodiments, the second information is carried in the TAC currently acquired by the terminal; in response to the second information indicating that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the TAT activated by the currently acquired TAC.

[0268] In combination with some embodiments of the first aspect, in some embodiments, when the second information indicates that the terminal does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently being performed by the terminal.

[0269] In some embodiments, the second information is at least one of the following: RRC signaling; MAC CE; physical layer signaling or DCI.

[0270] In some embodiments, the terminal receives third information, where the third information is used to instruct the terminal to perform extended uplink transmission.

[0271] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 and S3102. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, step S3101 may be implemented as an independent embodiment, and step S3101 + step S3102 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0272] In some embodiments, steps S3101 and S3102 may be executed in an interchanged order or simultaneously.

[0273] In some embodiments, step S3102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0274] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0275] FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a communication method, which includes:

[0276] Step S4101: perform extended uplink transmission.

[0277] In some embodiments, the target information is information that the terminal performs extended uplink transmission based on the first information when the GNSS validity period expires; wherein the first information is determined by the terminal, and the first information is used to represent the terminal global satellite navigation system GNSS validity period information.

[0278] The optional implementation of step S4101 can be found in step S2101 of Figure 2A, the optional implementation of step S3101 of Figure 3, and other related parts of the embodiments involved in Figures 2A, 2B, 2C, 2D, 2E, 2F and 3, which will not be repeated here.

[0279] In some embodiments, extended uplink transmission is performed with the terminal based on the transmission time domain location information of the extended uplink transmission.

[0280] In some embodiments, the transmission time domain location information includes: a starting position and a duration of the extended uplink transmission, or; a starting position and an ending position of the extended uplink transmission.

[0281] In some embodiments, the starting position is a GNSS validity period expiration position. In some embodiments, the method further includes: sending a first timing advance command TAC to the terminal, the first TAC being used to activate a first synchronization counter TAT; the first information including: a first TAT activated by the first TAC; and the end position of the extended uplink transmission being the end position of the first TAT.

[0282] In some embodiments, when the value of the first synchronization timer TAT is configured as a predefined value, the end position of the extended uplink transmission is determined by the terminal based on the preconfigured value.

[0283] In some embodiments, the method further includes: in the case of extended uplink transmission, sending a second TAC to the terminal, where the second TAC is used to activate a second TAT; and an end position of the extended uplink transmission is an end position of the first TAT.

[0284] In some embodiments, the method further includes: in the case of extended uplink transmission, sending a second TAC to the terminal, wherein the second TAC is used to activate a second TAT; and the end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

[0285] In some embodiments, the network device sends second information, where the second information is used to indicate whether the terminal can support multiple extended uplink transmissions; and the end position of the extended uplink transmission is determined based on the second information.

[0286] In some embodiments, when the second information indicates that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is determined based on the remaining duration of the third TAT activated by the third TAC, and the third TAC is the TAC received by the terminal during the extended uplink transmission process.

[0287] In some embodiments, the second information indicates that the terminal supports multiple extended uplink transmissions and indicates the number of extensions supported by the terminal for the extended uplink transmission; wherein the end position of the extended uplink transmission is determined based on the number of extensions supported and the number of extensions currently performed.

[0288] In some embodiments, the second information is carried in the TAC currently acquired by the terminal; in response to the second information indicating that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the TAT activated by the currently acquired TAC.

[0289] In some embodiments, when the second information indicates that the terminal does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently being performed by the terminal.

[0290] In some embodiments, the second information is at least one of the following: RRC signaling; MAC CE; physical layer signaling; DCI.

[0291] In some embodiments, the method further includes: receiving third information, where the third information is used to instruct the terminal to perform extended uplink transmission.

[0292] The disclosed embodiment proposes a communication method, which is applied to a satellite communication system. When the original GNSS information expires, the terminal can maintain its uplink transmission, thereby effectively avoiding the terminal from unnecessarily entering the IDLE state and reducing the performance of the system.

[0293] In some embodiments, the terminal maintains uplink transmission capability by at least one of the following:

[0294] Report capability indication information to the network. The capability indication information is used to indicate whether the terminal supports the ability to maintain its uplink transmission when the original GNSS validity duration expires.

[0295] The terminal receives the instruction information from the network device and determines that it can support maintaining its uplink transmission (extended UL transmission) when the original GNSS validity duration expires.

[0296] The terminal determines the transmission position information of the uplink transmission based on the configuration information of the base station, where the transmission position information includes the starting position and duration of the target uplink transmission, or the starting position and ending position of the target uplink transmission.

[0297] In some embodiments, the end is determined by:

[0298] In some embodiments, the terminal determines that the end position of its activated TAT at the time when the GNSS validity duration expires is the end position of the extended UL transmission. When the TAT timer is set to a predefined value (infinite), the terminal determines that the end position of the extended UL transmission is determined based on a configurable value.

[0299] Optionally, if during the extended UL transmission period, the terminal receives a TAC again and starts a new TAT timer, then the end position of the extended UL transmission is not extended.

[0300] In some embodiments, the terminal determines that the end position of its TAT ​​timer is the end position of the extended UL transmission.

[0301] Optionally, when the TAT timer is set to an infinite value, the terminal determines the end position of the extended UL transmission based on a configurable value.

[0302] Optionally, if during the extended UL transmission, the terminal receives a TAC again and starts a new TAT timer, the end position of the extended UL transmission may be determined based on the remaining time of the new TAT timer.

[0303] In some embodiments, the terminal receives indication information from the base station to determine whether more than one uplink transmission duration extension can be supported.

[0304] Optionally, the indication information received by the terminal directly includes whether the extended UL transmission can be extended. When the terminal receives the indication information and determines that the extension can be supported, the terminal may extend the time of the extended UL transmission.

[0305] For example, when the terminal receives the indication information and determines that the transmission can be extended, the terminal starts the TAT timer after receiving a new TAC command, and determines the end position of the extended UL transmission based on the new TAT timer.

[0306] Optionally, when the terminal receives the indication information and determines that extension is not supported, the terminal determines that the end position of the current extended UL transmission is the end position of the extended UL transmission.

[0307] The indication information may be high-layer signaling such as RRC, MAC CE or physical layer signaling.

[0308] In some embodiments, the indication information received by the terminal indicates the number of times the extended UL transmission is extended.

[0309] Exemplarily, continuing with the embodiment of FIG. 2F , the terminal receives the indication information to determine that the extended UL transmission can be extended once, and then the end position of the TAT started when the terminal receives TAC2 is the end position of the extended UL transmission.

[0310] The indication information may be high-layer signaling such as RRC, MAC CE or physical layer signaling.

[0311] In some embodiments, the terminal obtains, from the received TAC, indication information indicating whether the currently enabled TAT is used to extend the extended uplink transmission.

[0312] Optionally, the TAC information carries indication information of whether the current TAC can be used to extend the extended UL transmission, and the terminal determines whether the extended UL transmission can be extended based on the indication information.

[0313] Exemplarily, if it is determined that the transmission can be extended, the terminal will determine the end position of the extended UL transmission based on the TAT opened by the TAC received this time.

[0314] Exemplarily, if the transmission cannot be extended, the terminal determines that the previously determined end position of the extended UL transmission is the end position of the extended UL transmission.

[0315] Through the embodiments of the present disclosure, it is possible to effectively avoid the terminal from unnecessarily entering the IDLE state and reducing the performance of the system.

[0316] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0317] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0318] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may 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 device, 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 can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0319] 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 central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the 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 application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing 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.

[0320] Figure 5A is a structural diagram of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 5A, the terminal 5100 may include: at least one of a processing module 5101, a transceiver module 5102, etc. In some embodiments, the processing module 5101 is used to determine the first information, and the first information is used to represent the terminal global satellite navigation system GNSS validity period information. Optionally, the processing module 5101 is used to execute at least one of the communication processing steps (such as step S2101, but not limited to this) performed by the terminal 101 in any of the above methods, which will not be repeated here. In some embodiments, the transceiver module 5102 is used to extend the uplink transmission information based on the first information when the GNSS validity period expires. Optionally, the transceiver module 5102 is used to execute at least one of the communication steps such as sending and / or receiving (such as step S2102, but not limited to this) performed by the terminal 101 in any of the above methods, which will not be repeated here.

[0321] In some embodiments, the transceiver module 5101 performs extended uplink transmission in the following manner: determining transmission time domain position information of the terminal for performing extended uplink transmission.

[0322] In some embodiments, the transmission time domain location information includes: a starting position and a duration of the extended uplink transmission, or; a starting position and an ending position of the extended uplink transmission.

[0323] In some embodiments, the end position of the extended uplink transmission is the end position of the first synchronization timer TAT, and the first TAT is the TAT at which the first advance instruction TAC is activated.

[0324] In some embodiments, the starting position is a GNSS validity period expired position.

[0325] In some embodiments, when the value of the first synchronization timer TAT is configured as a predefined value, the end position of the extended uplink transmission is determined based on the preconfigured value.

[0326] In some embodiments, when the terminal performs extended uplink transmission, in response to the terminal acquiring a second TAT activated by a second TAC, the end position of the extended uplink transmission is the end position of the first TAT.

[0327] In some embodiments, when the terminal performs extended uplink transmission, in response to the transceiver module 5102 acquiring the second TAT activated by the second TAC, the end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

[0328] In some embodiments, the transceiver module 5102 is further used to obtain second information, where the second information is used to indicate whether the terminal can support multiple extended uplink transmissions; and the end position of the extended uplink transmission is determined based on the second information.

[0329] In some embodiments, when the second information indicates that the terminal can support multiple extended uplink transmissions, in response to the terminal obtaining a third TAT activated by a third TAC during the extended uplink transmission process, the end position of the extended uplink transmission is determined based on the remaining duration of the third TAT.

[0330] In conjunction with some embodiments of the fourth aspect, in some embodiments, the second information indicates that the terminal supports multiple extended uplink transmissions and indicates the number of extended uplink transmissions supported by the terminal;

[0331] The end position of the extended uplink transmission is determined based on the number of supported extensions and the number of currently performed extensions.

[0332] In some embodiments, the second information is carried in the TAC currently acquired by the terminal; in response to the second information indicating that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the TAT activated by the currently acquired TAC.

[0333] In some embodiments, when the second information indicates that the terminal does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently being performed by the terminal.

[0334] In some embodiments, the second information is at least one of the following: radio resource control RRC signaling; MAC CE; physical layer signaling; DCI.

[0335] In some embodiments, the transceiver module 5102 is further used to: receive third information, where the third information is used to instruct the terminal to perform extended uplink transmission.

[0336] Figure 5B is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure. As shown in Figure 5B, the network device 5200 may include: a transceiver module 5201. In some embodiments, the above-mentioned transceiver module 5101 is used to obtain target information, and the target information is information for extended uplink transmission by the terminal based on the first information when the GNSS validity period expires; wherein the first information is determined by the terminal, and the first information is used to represent the terminal's global satellite navigation system GNSS validity period information. Optionally, the above-mentioned transceiver module 5201 is used to execute at least one of the communication steps such as sending and / or receiving (such as step S2101 but not limited thereto) performed by the network device 102 in any of the above methods, which will not be repeated here.

[0337] In some embodiments, the transceiver module 5201 performs extended uplink transmission with the terminal based on the transmission time domain position information of the extended uplink transmission.

[0338] In some embodiments, the transmission time domain location information includes: a starting position and a duration of the extended uplink transmission, or; a starting position and an ending position of the extended uplink transmission.

[0339] In some embodiments, the transceiver module 5201 is also used to: send a first timing advance instruction TAC to the terminal, the first TAC is used to activate the first synchronization counter TAT; the first information includes: the first TAT activated by the first TAC; the end position of the extended uplink transmission is the end position of the first TAT.

[0340] In some embodiments, when the value of the first synchronization timer TAT is configured as a predefined value, the end position of the extended uplink transmission is determined by the terminal based on the preconfigured value.

[0341] In some embodiments, the starting position is a GNSS validity period expired position.

[0342] In some embodiments, the transceiver module 5201 is further used to: send a second TAC to the terminal in the case of extended uplink transmission, the second TAC is used to activate the second TAT; the end position of the extended uplink transmission is the end position of the first TAT.

[0343] In some embodiments, the transceiver module 5201 is further used to: send a second TAC to the terminal in the case of extended uplink transmission, the second TAC is used to activate the second TAT; the end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

[0344] In some embodiments, the transceiver module 5201 is further used to send second information, where the second information is used to indicate whether the terminal can support multiple extended uplink transmissions; and the end position of the extended uplink transmission is determined based on the second information.

[0345] In some embodiments, when the second information indicates that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is determined based on the remaining duration of the third TAT activated by the third TAC, and the third TAC is the TAC received by the terminal during the extended uplink transmission process.

[0346] In some embodiments, the second information indicates that the terminal supports multiple extended uplink transmissions and indicates an extended number of times the terminal supports performing the extended uplink transmissions;

[0347] The end position of the extended uplink transmission is determined based on the number of supported extensions and the number of currently performed extensions.

[0348] In some embodiments, the second information is carried in the TAC currently acquired by the terminal;

[0349] In response to the second information indicating that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the TAT activated by the currently acquired TAC.

[0350] In some embodiments, when the second information indicates that the terminal does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently being performed by the terminal. In some embodiments, the second information is at least one of the following: radio resource control (RRC) signaling; media access control (MAC) control element (CE); or physical layer signaling.

[0351] In some embodiments, the transceiver module 5201 is further used to: send third information, where the third information is used to instruct the terminal to perform extended uplink transmission.

[0352] In some embodiments, the transceiver module 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 may be interchangeable with the transceiver.

[0353] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0354] Figure 6A is a schematic diagram of the structure of a communication device 6100 proposed in an embodiment of the present disclosure. Communication device 6100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 6100 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.

[0355] As shown in Figure 6A, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, 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 the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to perform any of the above methods. Optionally, one or more processors 6101 are used to call instructions to cause the communication device 6100 to perform any of the above methods.

[0356] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., step S2102, step S2102, but not limited thereto), and the processor 6101 performs at least one of the other steps (e.g., step S2101, but not limited thereto). In an optional 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 interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0357] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Alternatively, all or part of the memories 6103 may be located outside the communication device 6100. In alternative embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and may be configured to receive data from the memories 6103 or other devices, or to send data to the memories 6103 or other devices. For example, the interface circuits 6104 may read data stored in the memories 6103 and send the data to the processor 6101.

[0358] The communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited to FIG6A. The communication device may be an independent device or may be part of a larger device. For example, the communication device 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 and 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.; (6) others, etc.

[0359] 6B is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6B , but the present disclosure is not limited thereto.

[0360] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0361] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Alternatively, all or part of memory 6203 may be located external to chip 6200. Optionally, interface circuit 6202 is connected to memory 6203 and may be used to receive data from memory 6203 or other devices, or may be used to send data to memory 6203 or other devices. For example, interface circuit 6202 may read data stored in memory 6203 and send the data to processor 6201.

[0362] In some embodiments, the interface circuit 6202 performs at least one of the communication steps (e.g., step S2102, but not limited thereto) in the above method, such as sending and / or receiving. The interface circuit 6202 performing the communication steps (e.g., sending and / or receiving) in the above method, for example, means that the interface circuit 6202 performs data exchange between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps (e.g., step S2101, but not limited thereto).

[0363] 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.

[0364] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 6100, the communication device 6100 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 transient storage medium.

[0365] The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0366] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that, Applied to a terminal, the method includes: Determine first information, where the first information is used to represent the Global Navigation Satellite System (GNSS) validity period information of the terminal; In the case where the GNSS validity period expires, perform extended uplink transmission.

2. The method according to claim 1, wherein The method further includes: Determine the transmission time domain position information for the terminal to perform extended uplink transmission.

3. The method according to claim 2, wherein The transmission time domain position information includes: The start position and duration of the extended uplink transmission, or; The start position and end position of the extended uplink transmission.

4. The method according to claim 3, wherein The start position is the position where the GNSS validity period expires.

5. The method according to claim 3 or 4, wherein The end position of the extended uplink transmission is the end position of the first timing at transmission (TAT), and the first TAT is the TAT activated by the first timing advance command (TAC).

6. The method according to any one of claims 3 or 4, wherein In the case where the value of the first timing at transmission (TAT) is configured to a predefined value, the end position of the extended uplink transmission is determined based on a preconfigured value, and the first TAT is the TAT activated by the first timing advance command (TAC).

7. The method according to any one of claims 3 to 6, wherein In the case where the terminal performs extended uplink transmission, in response to the terminal obtaining the second TAT activated by the second TAC, the end position of the extended uplink transmission is the end position of the first TAT.

8. The method according to any one of claims 3 to 6, wherein In the case where the terminal performs extended uplink transmission, in response to the terminal obtaining the second TAT activated by the second TAC, the end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

9. The method according to claim 3, wherein The method further includes: Obtain second information, where the second information is used to indicate whether the terminal can support multiple extended uplink transmissions; The end position of the extended uplink transmission is determined based on the second information.

10. The method according to claim 9, wherein In the case where the second information indicates that the terminal supports multiple extended uplink transmissions, in response to the terminal obtaining the third TAT activated by the third TAC during the extended uplink transmission process, the end position of the extended uplink transmission is determined based on the remaining duration of the third TAT.

11. The method according to claim 9, wherein The second information indicates that the terminal supports multiple extended uplink transmissions and indicates the number of times the terminal supports the extension of the extended uplink transmission; Wherein, the end position of the extended uplink transmission is determined based on the supported number of extension times.

12. The method according to claim 9, wherein The second information is carried in the TAC currently obtained by the terminal; In response to the second information indicating that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission Is the end position of the TAT activated by the currently obtained TAC.

13. The method according to any one of claims 9 to 12, characterized in that, In the case where the second information indicates that the terminal does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently performed by the terminal.

14. The method according to any one of claims 9 to 13, characterized in that, The second information is at least one of the following: Radio Resource Control (RRC) signaling; Media Access Control Control Element MAC CE; Physical layer signaling.

15. The method according to any one of claims 1 to 14, characterized in that, The method further includes: Receiving third information, where the third information is used to instruct the terminal to perform extended uplink transmission.

16. A communication method, characterized in that, Applied to a network device, the method includes: In the case where the validity period of the Global Navigation Satellite System GNSS of the terminal expires, performing extended uplink transmission with the terminal, where the GNSS validity period information is represented based on the first information determined by the terminal.

17. The method according to claim 16, wherein Performing extended uplink transmission with the terminal based on the transmission time domain position information of the extended uplink transmission.

18. The method according to claim 17, characterized in that The transmission time domain position information includes: The start position and duration of the extended uplink transmission, or; The start position and end position of the extended uplink transmission.

19. The method according to claim 18, wherein The start position is the GNSS expiration position.

20. The method according to claim 18 or 19, characterized in that, The method further includes: Sending a first Timing Advance Command TAC to the terminal, where the first TAC is used to activate a first Timing Advance Timer TAT; The end position of the extended uplink transmission is the end position of the first TAT.

21. The method according to claim 18 or 19, characterized in that, The method further includes: Sending a first Timing Advance Command TAC to the terminal, where the first TAC is used to activate a first Timing Advance Timer TAT; In the case where the value of the first Timing Advance Timer TAT is configured to a predefined value, the end position of the extended uplink transmission is determined by the terminal based on a preconfigured value.

22. The method according to any one of claims 18 to 21, characterized in that The method further includes: When performing extended uplink transmission, sending a second TAC to the terminal, where the second TAC is used to activate a second TAT; The end position of the extended uplink transmission is the end position of the first TAT.

23. The method according to any one of claims 18 to 22, characterized in that, The method further includes: When performing extended uplink transmission, sending a second TAC to the terminal, where the second TAC is used to activate a second TAT; The end position of the extended uplink transmission is determined based on the remaining duration of the second TAT.

24. The method according to claim 18, characterized in that, The method further includes: Sending second information, where the second information is used to indicate whether the terminal can support multiple extended uplink transmissions; The end position of the extended uplink transmission is determined based on the second information.

25. The method according to claim 24, wherein In the case where the second information indicates that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is determined based on the remaining duration of the third TAT activated by a third TAC, where the third TAC is the TAC received by the terminal during the extended uplink transmission process.

26. The method according to claim 24, wherein The second information indicates that the terminal supports multiple extended uplink transmissions and indicates the number of extensions that the terminal supports for extended uplink transmission; Wherein, the end position of the extended uplink transmission is determined based on the supported number of extensions.

27. The method according to claim 24, characterized in that The second information is carried in the TAC currently obtained by the terminal; In response to the second information indicating that the terminal supports multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the TAT activated by the currently obtained TAC.

28. The method according to any one of claims 24 to 27, characterized in that, In the case where the second information indicates that the terminal does not support multiple extended uplink transmissions, the end position of the extended uplink transmission is the end position of the extended uplink transmission currently performed by the terminal.

29. The method according to any one of claims 24 to 28, characterized in that, The second information is at least one of the following: Radio Resource Control (RRC) signaling; Medium Access Control Control Element (MAC CE); Physical layer signaling.

30. The method according to any one of claims 15 to 29, characterized in that The method further includes: Sending third information, where the third information is used to instruct the terminal to perform extended uplink transmission.

31. A communication method, characterized in that, The method includes: The terminal determines first information, where the first information is used to represent the Global Navigation Satellite System (GNSS) validity period information of the terminal; When the GNSS validity period expires, the terminal performs extended uplink transmission; The network device performs extended uplink transmission with the terminal.

32. A terminal, characterized in that, Includes: A processing module, configured to determine first information, where the first information is used to represent the Global Navigation Satellite System (GNSS) validity period information of the terminal; A transceiver module, configured to perform information of extended uplink transmission when the GNSS validity period expires.

33. A network device, characterized in that, Includes: A transceiver module, configured to perform extended uplink transmission with the terminal when the Global Navigation Satellite System (GNSS) validity period of the terminal expires; Wherein, the GNSS validity period information is represented based on the first information determined by the terminal.

34. A terminal, characterized in that, Includes: One or more processors; Wherein, the processor is configured to execute the communication method according to any one of claims 1 to 15.

35. A network device, characterized in that, Includes: One or more processors; Wherein, the processor is configured to execute the communication method according to any one of claims 16 to 30.

36. A communication system, characterized in that, Includes a terminal and a network device, wherein the terminal is configured to implement the communication method according to any one of claims 1 to 15, and the network device is configured to implement the communication method according to any one of claims 16 to 30.

37. A storage medium storing instructions, characterized in that, When the instruction runs on the communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 15 or 16 to 30.

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