Information transmission method and apparatus, communication device, communication system, and storage medium

Abstract

Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, a communication system, and a storage medium. A terminal sends a second signal within a first duration after receiving a first signal sent by a network device, wherein the first signal and the second signal are used for determining location information of the terminal.

Description

Information transmission method and device, communication equipment, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to information transmission methods and devices, communication equipment, communication systems, and storage media. Background Art

[0002] The continuous emergence of new internet applications such as augmented reality (AR) / virtual reality (VR) and vehicle-to-vehicle communications has placed higher demands on wireless communication technology, driving its continuous evolution to meet these demands. Currently, cellular mobile communication technology is in the process of evolving into a new generation of technology. A key feature of this new generation of technology is its flexible configuration to support a variety of service types. Different service types have different requirements for wireless communication technology. For example, enhanced mobile broadband (eMBB) services primarily require high bandwidth and high speed; ultra-reliable and low latency communications (URLLC) services primarily require high reliability and low latency; and massive machine type communications (mMTC) services primarily require a large number of connections. Therefore, the next generation of wireless communication systems requires flexible and configurable designs to support the transmission of various service types.

[0003] Summary of the Invention

[0004] As the functionality of terminals increases, their energy consumption increases, resulting in weak battery life.

[0005] Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, an information transmission method is provided. The method is performed by a terminal and includes:

[0007] A second signal is sent within a first time period after receiving a first signal sent by a network device, wherein the first signal and the second signal are used to determine the location information of the terminal.

[0008] According to a second aspect of an embodiment of the present disclosure, an information transmission method is provided. The method is performed by a network device and includes:

[0009] Sending first information to the terminal, wherein the first information is used to indicate the time domain resource configuration of the second signal, wherein the time domain position of the second information is located within a first time length after the first signal sent by the network device, wherein the first signal and the second signal are used to determine the location information of the terminal.

[0010] According to a third aspect of an embodiment of the present disclosure, an information transmission method is provided. The method is performed by a terminal and includes:

[0011] Second information is sent to a network device, wherein the second information is used to determine a positioning parameter associated with a timing advance (TA) drift, wherein the positioning parameter is used to determine location information of the terminal.

[0012] According to a fourth aspect of an embodiment of the present disclosure, an information transmission method is provided. The method is performed by a network device and includes:

[0013] Second information sent by a terminal is received, wherein the second information is used to determine a positioning parameter associated with a timing advance (TA) drift, wherein the positioning parameter is used to determine location information of the terminal.

[0014] According to a fifth aspect of an embodiment of the present disclosure, an information transmission method is provided. The method is performed by a communication system and includes:

[0015] The terminal sends a second signal within a first time period after receiving a first signal sent by a network device, wherein the first signal and the second signal are used to determine the location information of the terminal.

[0016] According to a sixth aspect of an embodiment of the present disclosure, an information transmission method is provided. The method is performed by a communication system and includes:

[0017] The terminal sends second information to the network device, wherein the second information is used to determine a positioning parameter associated with a timing advance (TA) drift, wherein the positioning parameter is used to determine location information of the terminal.

[0018] According to the seventh aspect of the embodiments of the present disclosure, the embodiments of the present disclosure propose a terminal, which includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute the optional implementation method of the first aspect.

[0019] According to the eighth aspect of the embodiments of the present disclosure, the embodiments of the present disclosure propose a network device, which includes at least one of a transceiver module and a processing module; wherein the network device is used to execute the optional implementation method of the second aspect.

[0020] According to a ninth aspect of an embodiment of the present disclosure, an embodiment of the present disclosure proposes a terminal, which includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute an optional implementation method of the third aspect.

[0021] According to the tenth aspect of the embodiment of the present disclosure, the embodiment of the present disclosure proposes a network device, which includes at least one of a transceiver module and a processing module; wherein the network device is used to execute the optional implementation method of the fourth aspect.

[0022] According to an eleventh aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a communication system, wherein the information transmission system includes a terminal and a network device, wherein:

[0023] The terminal is configured to implement the information transmission method according to the first aspect or the third aspect,

[0024] The network device is configured to implement the information transmission method described in the first aspect or the third aspect.

[0025] According to a twelfth aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a communication device, wherein the communication device includes:

[0026] one or more processors;

[0027] The processor is used to call instructions to enable the communication device to execute the information transmission method described in the first aspect, the second aspect, the third aspect, or the fourth aspect.

[0028] According to the thirteenth aspect of the embodiment of the present disclosure, the embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the information transmission method described in the first aspect or the second aspect or the third aspect or the fourth aspect.

[0029] The sending time domain position of the second signal is restricted so that the TA drift can be limited to a certain range, thereby improving the positioning accuracy.

[0030] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0032] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0033] FIG1b is a schematic diagram showing an uplink and downlink timing sequence according to an exemplary embodiment;

[0034] FIG1c is a schematic diagram showing an uplink and downlink timing sequence according to an exemplary embodiment;

[0035] FIG1d is a schematic diagram showing multiple round trip times according to an exemplary embodiment;

[0036] FIG1e is a schematic diagram showing an uplink and downlink timing sequence according to an exemplary embodiment;

[0037] FIG2a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0038] FIG2b is a schematic diagram showing an uplink and downlink timing sequence according to an exemplary embodiment;

[0039] FIG2c is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0040] FIG2 d is a schematic diagram showing an uplink and downlink timing sequence according to an exemplary embodiment;

[0041] FIG2e is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0042] FIG3a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0043] FIG3 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0044] FIG3c is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0045] FIG3 d is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0046] FIG3e is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0047] FIG4a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0048] FIG4 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0049] FIG4c is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0050] FIG4 d is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0051] FIG4e is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0052] FIG5 is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0053] FIG6 is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0054] FIG7a is a schematic diagram showing a terminal structure according to an exemplary embodiment;

[0055] FIG7b is a schematic diagram showing a terminal structure according to an exemplary embodiment;

[0056] FIG7c is a schematic structural diagram of an access network device according to an exemplary embodiment;

[0057] FIG7 d is a schematic structural diagram of an access network device according to an exemplary embodiment;

[0058] FIG8a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0059] Fig. 8b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0060] Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, a communication system, and a storage medium.

[0061] In a first aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a terminal and includes:

[0062] A second signal is sent within a first time period after receiving a first signal sent by a network device, wherein the first signal and the second signal are used to determine the location information of the terminal.

[0063] In the above embodiment, the second signal is sent within a first time period after the first signal, and the sending time domain position of the second signal is restricted, so that the TA drift amount can be limited to a certain range, thereby improving positioning accuracy.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0065] Sending the second signal within the first duration after receiving the first signal according to a time domain resource configuration of the second signal, wherein the time domain resource configuration includes at least one of the following:

[0066] a time domain position for sending the second signal;

[0067] An offset value of a time domain position at which the second signal is sent relative to a time domain position at which the first signal is received by the terminal.

[0068] In the above embodiment, the time domain position of the second signal within the first duration is configured based on the time domain resources. This, on the one hand, restricts the time domain position of the second signal, limiting the TA drift within a certain range and improving positioning accuracy. On the other hand, different methods are used to indicate the time domain position of the second signal, thereby increasing configuration flexibility.

[0069] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0070] Receive first information sent by the network device and used to indicate the time domain resource configuration.

[0071] In the above embodiment, the network device indicates the time domain position of the second signal within the first duration. This, on the one hand, limits the time domain position of the second signal, limiting the TA drift to a certain range and improving positioning accuracy. On the other hand, different methods for indicating the time domain position of the second signal improve configuration flexibility.

[0072] In combination with some embodiments of the first aspect, in some embodiments, the TA drift amount in the first time period is less than a first value.

[0073] In the above embodiment, the second signal is sent within a first time period after the first signal, and the sending time domain position of the second signal is restricted so that the TA drift amount can be limited to a first value, thereby improving positioning accuracy.

[0074] In conjunction with some embodiments of the first aspect, in some embodiments, the first duration is configured by the network device; or,

[0075] The first duration is specified in the communication protocol.

[0076] In the above embodiment, the first duration is configured in different ways to improve the configuration flexibility of the first duration.

[0077] In a second aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a network device and includes:

[0078] Sending first information to the terminal, wherein the first information is used to indicate the time domain resource configuration of the second signal, wherein the time domain position of the second information is located within a first time length after the first signal sent by the network device, wherein the first signal and the second signal are used to determine the location information of the terminal.

[0079] In the above embodiment, the network device indicates the time domain position of the second signal within the first duration. This, on the one hand, limits the time domain position of the second signal, limiting the TA drift to a certain range and improving positioning accuracy. On the other hand, different methods for indicating the time domain position of the second signal improve configuration flexibility.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the time domain resource configuration includes at least one of the following:

[0081] a time domain position for sending the second signal;

[0082] An offset value of a time domain position at which the second signal is sent relative to a time domain position at which the first signal is received by the terminal.

[0083] In combination with some embodiments of the second aspect, in some embodiments, the TA drift amount in the first time period is less than a first value.

[0084] In conjunction with some embodiments of the second aspect, in some embodiments, the first duration is configured by the network device; or,

[0085] The first duration is specified in the communication protocol.

[0086] In a third aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method is executed by a terminal and includes:

[0087] Second information is sent to the network device, wherein the second information is used to determine a positioning parameter associated with the TA drift, wherein the positioning parameter is used to determine the location information of the terminal.

[0088] In the above embodiment, the terminal reports the positioning parameters associated with TA drift to the network device. The network device can take the influence of TA drift into consideration when determining the terminal location information, thereby improving positioning accuracy.

[0089] In combination with some embodiments of the third aspect, in some embodiments, the second information is used to indicate a TA drift rate, and the TA drift rate is used by the network device to determine the TA drift amount in combination with the first timestamp and the second timestamp.

[0090] In the above embodiment, the terminal reports the TA drift rate to the network device, and the network device can determine the TA drift amount, and then consider the influence of the TA drift amount when determining the terminal position information, thereby improving positioning accuracy.

[0091] With reference to some embodiments of the third aspect, in some embodiments, the first timestamp is used to indicate a time when the terminal receives the first signal;

[0092] The second timestamp is used to indicate the time when the terminal sends the second signal;

[0093] The first signal and the second signal are used to determine the location information of the terminal.

[0094] In the above embodiment, the terminal reports the first timestamp and the second timestamp to the network device, and the network device can determine the duration of the TA drift amount based on the TA drift rate, thereby improving the accuracy of the determined TA drift amount.

[0095] In combination with some embodiments of the third aspect, in some embodiments, the second information is used to indicate a receive-transmit time difference (Rx-Tx time difference) for compensating for the TA drift.

[0096] In the above embodiment, the terminal reports the receive-transmit time difference (Rx-Tx time difference) associated with compensating for TA drift to the network device. The network device can compensate for the influence of TA drift when determining the terminal location information, thereby improving positioning accuracy.

[0097] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes:

[0098] determining a position change of the terminal based on a global navigation satellite system GNSS;

[0099] The TA drift amount is determined according to the position change of the terminal.

[0100] In a fourth aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a network device and includes:

[0101] Second information sent by a terminal is received, wherein the second information is used to determine a positioning parameter associated with TA drift, wherein the positioning parameter is used to determine location information of the terminal.

[0102] In the above embodiment, the terminal reports the positioning parameters associated with TA drift to the network device. The network device can take the influence of TA drift into consideration when determining the terminal location information, thereby improving positioning accuracy.

[0103] In conjunction with some embodiments of the fourth aspect, in some embodiments, the second information is used to indicate a TA drift rate;

[0104] The method further includes determining the TA drift amount according to the TA drift rate, the first timestamp, and the second timestamp.

[0105] In conjunction with some embodiments of the fourth aspect, in some embodiments, the method further includes:

[0106] The first timestamp is used to indicate the time when the terminal receives the first signal;

[0107] The second timestamp is used to indicate the time when the terminal sends the second signal;

[0108] The first signal and the second signal are used to determine the location information of the terminal.

[0109] In combination with some embodiments of the fourth aspect, in some embodiments, the second information is used to indicate a receive-transmit time difference Rx-Tx time difference for compensating for the TA drift.

[0110] In combination with some embodiments of the fourth aspect, in some embodiments, the TA drift amount is determined by the terminal based on the terminal position change determined by the global navigation satellite system GNSS.

[0111] In a fifth aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a communication system and includes:

[0112] The terminal sends a second signal within a first time period after receiving a first signal sent by a network device, wherein the first signal and the second signal are used to determine the location information of the terminal.

[0113] In a sixth aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a communication system, and the method includes:

[0114] The terminal sends second information to the network device, wherein the second information is used to determine a positioning parameter associated with TA drift, wherein the positioning parameter is used to determine the location information of the terminal.

[0115] In a seventh aspect, an embodiment of the present disclosure proposes a terminal, which includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute the optional implementation method of the first aspect.

[0116] In an eighth aspect, an embodiment of the present disclosure proposes a network device, which includes at least one of a transceiver module and a processing module; wherein the network device is used to execute the optional implementation method of the second aspect.

[0117] In a ninth aspect, an embodiment of the present disclosure proposes a terminal, which includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute the optional implementation method of the third aspect.

[0118] In the tenth aspect, an embodiment of the present disclosure proposes a network device, which includes at least one of a transceiver module and a processing module; wherein the network device is used to execute the optional implementation method of the fourth aspect.

[0119] In an eleventh aspect, an embodiment of the present disclosure provides a communication system, wherein the information transmission system includes a terminal and a network device, wherein:

[0120] The terminal is configured to implement the information transmission method according to the first aspect or the third aspect,

[0121] The network device is configured to implement the information transmission method described in the first aspect or the third aspect.

[0122] In a twelfth aspect, an embodiment of the present disclosure provides a communication device, wherein the communication device includes:

[0123] one or more processors;

[0124] The processor is used to call instructions to enable the communication device to execute the information transmission method described in the first aspect, the second aspect, the third aspect, or the fourth aspect.

[0125] In the thirteenth aspect, an embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the information transmission method described in the first aspect, the second aspect, the third aspect, or the fourth aspect.

[0126] The present disclosure provides an information transmission method and apparatus, a communication device, a communication system, and a storage medium. In some embodiments, the terms "information transmission method" and "information processing method" are interchangeable; the terms "information transmission apparatus" and "information processing apparatus" are interchangeable; and the terms "communication system" and "information processing system" are interchangeable.

[0127] 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.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0132] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0133] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "in one case A, in another case B," or "in one case A, in 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 same applies when there are more branches such as A, B, and C.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0138] 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.

[0139] 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.

[0140] 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.

[0141] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0142] 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.

[0143] 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.

[0144] 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 (D2b), 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.

[0145] 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.

[0146] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0147] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0148] 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.

[0149] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0150] As shown in Figure 1a, a communication system 100 includes a terminal 101 and a network device 102. The network device 102 may include an access network device and a core network device.

[0151] 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.

[0152] In some embodiments, the access network device may be, 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.

[0153] 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.

[0154] 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.

[0155] In some embodiments, the core network device includes, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0156] 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 provided by 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 provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0157] 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 a portion 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. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0158] 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 (D2b) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other information transmission methods, and next-generation systems based on and extending these systems. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0159] In the study of wireless communication technology, satellite communication is considered an important aspect of future wireless communication technology development. Satellite communication refers to communication conducted by ground-based radio communication equipment using satellites as relays. Satellite communication systems consist of satellite and ground components. Satellite communication features include: a wide communication range; communication between any two points within the coverage area of ​​the satellite's radio waves; and low susceptibility to land-based disasters (high reliability). As a supplement to current ground-based cellular communication systems, satellite communication can provide the following benefits:

[0160] Extended coverage: For areas that are not covered by current cellular communication systems or are costly to cover, such as oceans, deserts, and remote mountainous areas, satellite communications can be used to solve communication problems.

[0161] Emergency communications: In extreme situations such as disasters such as earthquakes, when cellular communication infrastructure is unavailable, satellite communications can be used to quickly establish communication connections.

[0162] Provide industry applications: For example, for delay-sensitive services in long-distance transmission, satellite communications can be used to reduce the delay of service transmission.

[0163] It can be foreseen that in future wireless communication systems, satellite communication systems and terrestrial cellular communication systems will gradually achieve deep integration, truly realizing the intelligent connection of all things.

[0164] In satellite communication systems, the long propagation distance leads to large deviations in uplink and downlink timing. As shown in Figures 1b and 1c, the terminal needs to maintain uplink synchronization based on GNSS measurements and some auxiliary information.

[0165] In satellite communications, data transmission takes a long time due to the long signal transmission distance between the transmitter and receiver. For uplink and downlink transmission, current standardization discussions have identified the introduction of a delay parameter to compensate for transmission delay. To determine this delay parameter, the terminal must report its location information.

[0166] The terminal can obtain its own location information based on its own GNSS measurements and report it to the network. However, for the network, the location information obtained by the terminal based on GNSS is unreliable. For example, the reported location information of the terminal is inaccurate or the GNSS information of the terminal has been tampered with.

[0167] The reliability of the location information can be verified by providing the location information through network devices.

[0168] For network-based positioning in satellite communication scenarios, as shown in Figure 1d, a single satellite can be used to perform multi-Round Trip Time (multi-RTT) measurements at different measurement times (-x, 0, x). Alternatively, different satellites can be used to perform multi-RTT measurements at the same or different measurement times to obtain the terminal's location information.

[0169] In some embodiments, the location information of the terminal may be acquired through a multi-RTT approach, as shown in FIG1d .

[0170] In a multi-RTT scenario, as shown in FIG1e , there is no restriction between the time when the terminal sends the SRS and the time when the PRS is sent. Timing drift may occur, resulting in a decrease in positioning accuracy.

[0171] An interactive diagram of an information transmission method shown in an embodiment of the present disclosure. As shown in FIG2a , an embodiment of the present disclosure relates to an information transmission method used in a communication system 100, the method comprising:

[0172] Step S2101: The network device sends first information.

[0173] In some embodiments, the network device sends first information to the terminal, where the first information is used to indicate a time domain resource configuration of the second signal.

[0174] In some embodiments, the second signal is a signal sent by the terminal to the network device after receiving the first signal. The first signal is sent by the network device to the terminal. The first signal and the second signal are used to determine the location information of the terminal.

[0175] In some embodiments, the location information of the terminal includes one of the following:

[0176] The geographical location of the terminal;

[0177] The relative position of the terminal to the network equipment;

[0178] The distance between the terminal and the network device;

[0179] The orientation of the terminal relative to the network device.

[0180] In some embodiments, the network device determines the distance between the network device and the terminal according to the transmission duration of the first signal and the second signal.

[0181] In some embodiments, the time from when the network device sends the first signal to when it receives the second signal sent by the terminal can be called a round trip time (RTT). The network device can determine the distance between the network device and the terminal based on the round trip time of the first signal and the second signal.

[0182] In some embodiments, as shown in FIG1d , the network device may determine the distance between the network device and the terminal at multiple different times, thereby determining the location of the terminal.

[0183] In some embodiments, the network device can determine the distance between the network device and the terminal based on the round-trip time of the first signal and the second signal, and determine the relative position of the network device and the terminal based on the angle of arrival (AOA) of the second signal, thereby determining the position of the terminal.

[0184] In some embodiments, the first signal may include a Positioning Reference Signal (PRS).

[0185] In some embodiments, the second signal may include a sounding reference signal (SRS).

[0186] In some embodiments, the time domain resource configuration is used to indicate at least one of the following: the time domain position for sending the second signal; and the offset value of the time domain position for sending the second signal relative to the time domain position at which the terminal receives the first signal.

[0187] In some embodiments, the terminal determines the time domain position of the second signal according to the time domain resource configuration of the received first signal.

[0188] In some embodiments, the terminal determines the time domain position of the second signal according to an offset value of the time domain position of the second signal configured by the time domain resource configuration relative to the time domain position at which the terminal receives the first signal.

[0189] In some embodiments, the network device configures the time domain resource configuration of the second signal based on the first duration. The network device sets the time domain resource of the second signal within the first duration. The first duration is after the terminal receives the first signal.

[0190] In some embodiments, the starting time of the first duration is the time when the terminal receives the first signal. For example, the time domain position of the starting subframe of the first duration is the same as the time domain position of the subframe in which the terminal receives the first signal.

[0191] In some embodiments, during a first period of time, the TA drift is less than a first value.

[0192] Step S2102: The terminal sends a second signal.

[0193] In some embodiments, as shown in FIG2b , the terminal sends a second signal within a first time period after receiving a first signal sent by the network device.

[0194] In some embodiments, the first duration can be expressed in absolute time units. For example, the first duration can be expressed in seconds or milliseconds. The first duration is X seconds / milliseconds, where X is a positive number.

[0195] In some embodiments, the first duration may be represented by a logical time unit, which may include one of the following: an OFDM symbol; a time slot; a subframe; or a radio frame.

[0196] In some embodiments, the terminal sends the second signal within N radio frames after the radio frame in which the first signal is received, where N is a positive integer.

[0197] In some embodiments, the terminal sends the second signal within M subframes after the radio subframe in which the first signal is received, where M is a positive integer.

[0198] In some embodiments, the terminal determines the time domain position of the second signal based on the time domain resource configuration indicated by the first information. The time domain position of the second signal determined by the terminal based on the first information is within a first time duration after the terminal receives the first signal.

[0199] In some embodiments, the time domain resource configuration may be configured by the terminal. The terminal may set the time domain resource for transmitting the second signal within the first duration.

[0200] In some embodiments, the time domain resource configuration of the second signal is specified by a communication protocol.

[0201] In some embodiments, the network device determines the first information based on the first duration. The network device may set the time domain resource of the second signal within the first duration. The terminal determines the time domain location of the second signal based on the time domain resource configuration of the second signal.

[0202] In some embodiments, the first duration is configured by the network device.

[0203] In some embodiments, the first duration is specified by a communication protocol.

[0204] In some embodiments, the first duration is preconfigured.

[0205] In some embodiments, the first duration is preconfigured by the terminal or the network device based on the relative movement speed between the terminal and the network device.

[0206] In some embodiments, the duration of the first duration is negatively correlated with the relative motion speed. When the motion speed is greater than a speed threshold, the duration of the first duration is configured to be less than the first duration.

[0207] In some embodiments, during a first period of time, the TA drift is less than a first value.

[0208] In some embodiments, the TA drift is an amount representing a change in TA within a first period of time.

[0209] In some embodiments, the TA drift is positively correlated with the terminal positioning error. The TA drift is positively correlated with the error in determining the location of the terminal by the network device.

[0210] The positioning error includes at least one of the following: an error in the distance between the network device and the terminal; an error in the terminal position determined by the network device; an error in the round-trip time between the first signal and the second signal determined by the network device.

[0211] In some embodiments, the first value is determined based on a positioning error.

[0212] In some embodiments, the first value is negatively correlated with the positioning error.

[0213] In some embodiments, the second signal is sent within a first time period, and the TA offset within the first time period is less than a first value, which can improve positioning accuracy.

[0214] In some embodiments, the terminal reports at least one of the following to the network device: a first timestamp of the first signal, a second timestamp of the second signal, and a terminal receive-transmit time difference (Rx_Tx time difference). The first timestamp of the first signal indicates the time when the terminal receives the first signal, and the second timestamp of the second signal indicates the time when the terminal sends the second signal.

[0215] In some embodiments, the Rx_Tx time difference includes the terminal Rx_Tx time difference, which may be the difference between the timing of receiving downlink radio frames from the network device by the terminal and the timing of sending uplink radio frames by the terminal.

[0216] In some embodiments, the Rx_Tx time difference may determine the TA.

[0217] In some embodiments, the network device may determine the location information of the terminal based on a first timestamp of the first signal, a second timestamp of the second signal, a terminal receive and transmit time difference (Rx_Tx time difference), and the like.

[0218] For example, the time between a network device sending a first signal and receiving a second signal sent by a terminal can be considered a round trip. The network device can determine the distance between the network device and the terminal based on the round-trip time between the first and second signals. This can then determine the terminal's location information. For example, the network device can determine the distance between the network device and the terminal based on the flight time of the first and second signals.

[0219] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0220] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0221] The information transmission 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 steps S2101 and S2102 may be implemented as independent embodiments, but the present disclosure is not limited thereto.

[0222] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0223] 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.

[0224] An interactive diagram of an information transmission method shown in an embodiment of the present disclosure. As shown in FIG2c , an embodiment of the present disclosure relates to an information transmission method used in a communication system 100, the method comprising:

[0225] Step S2201: The terminal sends the second information.

[0226] In some embodiments, the terminal sends second information to the network device, where the second information is used to determine a positioning parameter associated with TA drift, and the positioning parameter is used to determine the first location information of the terminal.

[0227] In some embodiments, the network device may include: a network element function in a core network device. For example, the network device may be a location management function (LMF) in the core network device.

[0228] In some embodiments, the terminal sends the second information to the core network device through the base station. The access and mobility management function (AMF) in the core network device receives the second information and forwards the second information to the LMF.

[0229] In some embodiments, the positioning parameters include parameters affected by TA drift.

[0230] In some embodiments, the positioning parameters are parameters that need to be used by the network device in determining the terminal location information.

[0231] In some embodiments, the network device determines the distance between the network device and the terminal based on the round trip time (RTT) between the first signal and the second signal, and further determines the terminal location information.

[0232] In some embodiments, the second signal is a signal sent by the terminal to the network device after receiving the first signal. The first signal is sent by the network device to the terminal. The first signal and the second signal are used to determine the location information of the terminal.

[0233] In some embodiments, the location information of the terminal includes one of the following:

[0234] The geographical location of the terminal;

[0235] The relative position of the terminal to the network equipment;

[0236] The distance between the terminal and the network device;

[0237] The orientation of the terminal relative to the network device.

[0238] In some embodiments, the network device determines the distance between the network device and the terminal according to the transmission duration of the first signal and the second signal.

[0239] In some embodiments, the time from the network device sending the first signal to receiving the second signal can be called a round trip. The network device can determine the distance between the network device and the terminal based on the round trip time (RTT) between the first signal and the second signal.

[0240] In some embodiments, as shown in FIG1d , the network device may determine the distance between the network device and the terminal at multiple different times, thereby determining the location of the terminal.

[0241] In some embodiments, the network device can determine the distance between the network device and the terminal based on the round trip time (RTT) of the first signal and the second signal, and determine the relative position of the network device and the terminal based on the angle of arrival (AOA) of the second signal, thereby determining the position of the terminal.

[0242] In some embodiments, the first signal may include a Positioning Reference Signal (PRS). The PRS is sent by a network device to a terminal for the terminal to perform measurements related to terminal positioning.

[0243] In some embodiments, the second signal may include a Sounding Reference Signal (SRS). The SRS is sent by the terminal to the network for the network device to perform measurements related to the terminal's positioning.

[0244] In some embodiments, the positioning parameters include parameters determined by the terminal during RTT measurement.

[0245] In some embodiments, the positioning parameters include parameters determined by the terminal during the RTT measurement process and sent to the network device.

[0246] In some embodiments, the positioning parameter includes at least one of the following: TA; TA drift; and Rx-Tx time difference.

[0247] In some embodiments, the second information is used to indicate a TA drift rate. The TA drift rate is used to indicate an average rate of change of the TA within a predetermined period of time.

[0248] In some embodiments, the terminal reports at least one of the following to the network device: a first timestamp of the first signal, a second timestamp of the second signal, and a terminal receive-transmit time difference (Rx_Tx time difference). The first timestamp of the first signal indicates the time when the terminal receives the first signal, and the second timestamp of the second signal indicates the time when the terminal sends the second signal.

[0249] In some embodiments, the timestamp may be expressed in absolute time, for example, in Coordinated Universal Time (UTC).

[0250] In some embodiments, the timestamp may be represented by logical time. The logical time includes one of the following: The logical time unit may include one of the following: a time slot; a subframe; or a radio frame.

[0251] For example, the timestamp may be represented by a timeslot number or a radio frame number.

[0252] In some embodiments, the Rx_Tx time difference includes the terminal Rx_Tx time difference, which may be the difference between the timing of receiving downlink radio frames from the network device by the terminal and the timing of sending uplink radio frames by the terminal.

[0253] In some embodiments, the terminal Rx_Tx time difference can be used to determine the TA. For example, the terminal Rx_Tx time difference can be combined with the base station Rx_Tx time difference to determine the TA.

[0254] In some embodiments, the network device may determine the location information of the terminal based on a first timestamp of the first signal, a second timestamp of the second signal, a terminal receive and transmit time difference (Rx_Tx time difference), and the like.

[0255] In some embodiments, at least one of a first timestamp of the first signal, a second timestamp of the second signal, and a terminal receiving and transmitting time difference (Rx_Tx time difference) may be carried in the second information.

[0256] In some embodiments, at least one of the first timestamp of the first signal, the second timestamp of the second signal, and the terminal receive-transmit time difference (Rx_Tx time difference) may be carried in information other than the second information. For example, at least one of the first timestamp of the first signal, the second timestamp of the second signal, and the terminal receive-transmit time difference (Rx_Tx time difference) may be carried in a terminal measurement report.

[0257] In some embodiments, the terminal determines the TA drift rate based on a change in the terminal position determined by GNSS.The terminal may determine the TA drift rate based on a change in the terminal position during an interval between the first timestamp and the second timestamp.

[0258] Step S2202: The network device determines the TA drift.

[0259] In some embodiments, as shown in FIG2 d , the network device determines the TA drift amount according to the TA drift rate, the first timestamp, and the second timestamp.

[0260] In some embodiments, the TA drift rate is the drift rate of the TA during the interval between the terminal receiving the first signal and the terminal sending the second signal. The TA drift amount is the drift amount of the TA during the interval between the terminal receiving the first signal and the terminal sending the second signal.

[0261] In some embodiments, the network device determines the interval between the terminal receiving the first signal and sending the second signal based on the first timestamp and the second timestamp, and determines the TA drift amount of the terminal within the interval based on the interval and the TA drift rate.

[0262] Step S2203: The network device determines the location information of the terminal.

[0263] In some embodiments, the network device determines the location information of the terminal based on at least one of the following: a first timestamp of the first signal, a second timestamp of the second signal, TA, TA drift, and Rx_Tx time difference.

[0264] In some embodiments, the Rx_Tx time difference sent by the terminal and received by the network device may be the Rx_Tx time difference measured by the terminal.

[0265] In some embodiments, the network device may compensate for time associated with the first signal and / or time associated with the second signal based on the TA drift. The time associated with the first signal includes at least one of a time when the first signal is transmitted and a time when the first signal is received. The time associated with the second signal includes at least one of a time when the second signal is transmitted and a time when the second signal is received.

[0266] For example, the time between a network device sending a first signal and receiving a second signal sent by a terminal can be considered a round trip. The network device can determine the distance between the network device and the terminal based on the round-trip time between the first and second signals. This can then determine the terminal's location information. For example, the network device can determine the distance between the network device and the terminal based on the flight time of the first signal and the flight time of the second signal.

[0267] In some embodiments, as shown in FIG. 1d , the network device may determine the distance between the network device and the terminal at multiple measurement moments, and further determine the location information.

[0268] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0269] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0270] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2201 to S2203. For example, step S2201 may be implemented as an independent embodiment, step S2202 may be implemented as an independent embodiment, and step S2203 may be implemented as an independent embodiment. However, the present disclosure is not limited thereto.

[0271] 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.

[0272] An interactive diagram of an information transmission method shown in an embodiment of the present disclosure. As shown in FIG2e , an embodiment of the present disclosure relates to an information transmission method used in a communication system 100, the method comprising:

[0273] Step S2301: The terminal determines the TA drift.

[0274] In some embodiments, the terminal determines the TA drift amount based on the change in the terminal position.

[0275] In some embodiments, as shown in FIG2 d , the terminal may determine the TA drift based on a change in the terminal position within an interval between the first timestamp and the second timestamp.

[0276] In some embodiments, the terminal determines a change in the terminal's position within a time interval between the first timestamp and the second timestamp based on GNSS.

[0277] In some embodiments, the first timestamp indicates the time when the terminal receives the first signal, and the second timestamp indicates the time when the terminal sends the second signal.

[0278] In some embodiments, the timestamp may be expressed in absolute time, for example, in Coordinated Universal Time (UTC).

[0279] In some embodiments, the timestamp may be represented by logical time. The logical time includes one of the following: The logical time unit may include one of the following: a time slot; a subframe; or a radio frame.

[0280] For example, the timestamp may be represented by a timeslot number or a radio frame number.

[0281] In some embodiments, the TA drift is positively correlated with the change in the terminal position during the interval between the first timestamp and the second timestamp. For example, the greater the terminal displacement during the interval between the first timestamp and the second timestamp, the greater the TA drift.

[0282] In some embodiments, the second signal is a signal sent by the terminal to the network device after receiving the first signal. The first signal is sent by the network device to the terminal. The first signal and the second signal are used to determine the location information of the terminal.

[0283] In some embodiments, the location information of the terminal includes one of the following:

[0284] The geographical location of the terminal;

[0285] The relative position of the terminal to the network equipment;

[0286] The distance between the terminal and the network device;

[0287] The orientation of the terminal relative to the network device.

[0288] In some embodiments, the first signal may include a Positioning Reference Signal (PRS). The PRS is sent by a network device to a terminal for the terminal to perform measurements related to terminal positioning.

[0289] In some embodiments, the second signal may include a Sounding Reference Signal (SRS). The SRS is sent by the terminal to the network for the network device to perform measurements related to the terminal's positioning.

[0290] Step S2302: The terminal sends the second information.

[0291] In some embodiments, the terminal sends second information to the network device, where the second information is used to determine a positioning parameter associated with TA drift, and the positioning parameter is used to determine the first location information of the terminal.

[0292] In some embodiments, the network device may include: a network function in a core network device. For example, the network device may be a location management function (LMF) in the core network device.

[0293] In some embodiments, the terminal sends the second information to the core network device through the base station. The access and mobility management function (AMF) in the core network device receives the second information and forwards the second information to the LMF.

[0294] In some embodiments, the positioning parameters include parameters affected by TA drift.

[0295] In some embodiments, the positioning parameters are parameters that need to be used by the network device in determining the terminal location information.

[0296] In some embodiments, the second information is used to indicate a receive-transmit time difference (Rx-Tx time difference) for compensating for the TA drift.

[0297] In some embodiments, the Rx_Tx time difference includes the terminal Rx_Tx time difference, which may be the difference between the timing of receiving downlink radio frames from the network device by the terminal and the timing of sending uplink radio frames by the terminal.

[0298] In some embodiments, the terminal may measure the Rx_Tx time difference during the RTT measurement and compensate for the TA drift to obtain the Rx-Tx time difference compensated for the TA drift.

[0299] Step S2303: The network device determines the location information of the terminal.

[0300] In some embodiments, the network device determines the location information of the terminal based on at least one of the following: a first timestamp of the first signal, a second timestamp of the second signal, TA, and Rx-Tx time difference, where the Rx-Tx time difference may be a receive-transmit time difference (Rx-Tx time difference) that compensates for TA drift.

[0301] In some embodiments, the network device determines the distance between the network device and the terminal according to the transmission duration of the first signal and the second signal.

[0302] In some embodiments, the time from the network device sending the first signal to receiving the second signal can be called a round trip. The network device can determine the distance between the network device and the terminal based on the round trip time (RTT) between the first signal and the second signal.

[0303] In some embodiments, as shown in FIG1d , the network device may determine the distance between the network device and the terminal at multiple different times, thereby determining the location of the terminal.

[0304] In some embodiments, the network device can determine the distance between the network device and the terminal based on the round trip time (RTT) of the first signal and the second signal, and determine the relative position of the network device and the terminal based on the angle of arrival (AOA) of the second signal, thereby determining the position of the terminal.

[0305] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0306] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0307] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2301 and S2302. For example, step S2301 may be implemented as an independent embodiment, step S2302 may be implemented as an independent embodiment, and steps S2301 and S2302 may be implemented as independent embodiments, but the present disclosure is not limited thereto.

[0308] In some embodiments, step S2303 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0309] 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.

[0310] FIG3a is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3a, the present disclosure embodiment relates to an information transmission method, which is executed by terminal 101 and includes:

[0311] Step S3101: Obtain first information.

[0312] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0313] In some embodiments, the terminal receives the first information sent by the network device, but is not limited thereto and may also receive the first information sent by other entities.

[0314] In some embodiments, the terminal obtains first information specified by the protocol.

[0315] In some embodiments, the terminal obtains the first information from an upper layer(s).

[0316] In some embodiments, the terminal performs processing to obtain the first information.

[0317] In some embodiments, step S3102 is omitted, the terminal autonomously implements the function indicated by the first information, or the above function is default or by default.

[0318] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0319] Step S3102: Send a second signal.

[0320] In some embodiments, the optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0321] The information transmission 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, and steps S3101 and S3102 may be implemented as independent embodiments, but the present disclosure is not limited thereto.

[0322] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0323] 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.

[0324] FIG3b is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3b, the present disclosure embodiment relates to an information transmission method, which is executed by terminal 101 and includes:

[0325] Step S3201: Send the second information.

[0326] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2201 in Figure 2c and other related parts of the embodiment involved in Figure 2c, which will not be repeated here.

[0327] 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.

[0328] FIG3c is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3c, the present disclosure embodiment relates to an information transmission method, which is executed by terminal 101 and includes:

[0329] Step S3301: Determine the TA drift.

[0330] In some embodiments, the optional implementation of step S3301 can refer to the optional implementation of step S2301 in Figure 2e and other related parts of the embodiment involved in Figure 2c, which will not be repeated here.

[0331] Step S3302: Send the second information.

[0332] In some embodiments, the optional implementation of step S3302 can refer to the optional implementation of step S2302 in Figure 2e and other related parts of the embodiment involved in Figure 2e, which will not be repeated here.

[0333] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S3301 and S3302. For example, step S3301 may be implemented as an independent embodiment, step S3302 may be implemented as an independent embodiment, and steps S3301 and S3302 may be implemented as independent embodiments, but the present disclosure is not limited thereto.

[0334] 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.

[0335] FIG3 d is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3 d , the present disclosure embodiment relates to an information transmission method, which is executed by terminal 101 and includes:

[0336] Step S3401: Send a second signal within a first duration.

[0337] In some embodiments, a second signal is sent within a first time period after receiving a first signal sent by a network device, wherein the first signal and the second signal are used to determine the location information of the terminal.

[0338] In some embodiments, the method further comprises:

[0339] Send the second signal within the first duration according to a time domain resource configuration of the second signal, where the time domain resource configuration includes at least one of the following:

[0340] a time domain position at which the second signal is sent;

[0341] The offset value of the time domain position of sending the second signal relative to the time domain position of receiving the first signal by the terminal.

[0342] In some embodiments, the method further comprises:

[0343] First information indicating time domain resource configuration sent by a network device is received.

[0344] In some embodiments, the TA drift within the first time period is less than a first value.

[0345] In some embodiments, the first duration is configured by the network device; or,

[0346] The first duration is specified in the communication protocol.

[0347] FIG3e is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3e , the present disclosure embodiment relates to an information transmission method, which is executed by terminal 101 and includes:

[0348] Step S3501: Send the second information.

[0349] In some embodiments, second information is sent to the network device, wherein the second information is used to determine a positioning parameter associated with the TA drift, wherein the positioning parameter is used to determine the location information of the terminal.

[0350] In some embodiments, the second information is used to indicate a TA drift rate, where the TA drift rate is used by the network device to determine a TA drift amount by combining the first timestamp and the second timestamp.

[0351] In some embodiments, the first timestamp is used to indicate a time when the terminal receives the first signal;

[0352] The second timestamp is used to indicate the time when the terminal sends the second signal;

[0353] The first signal and the second signal are used to determine the location information of the terminal.

[0354] In some embodiments, the second information is used to indicate a receive-transmit time difference (Rx-Tx time difference) for compensating for the TA drift.

[0355] In some embodiments, the method further comprises:

[0356] Determine the terminal's position change based on the Global Navigation Satellite System (GNSS);

[0357] The TA drift is determined based on the position change of the terminal.

[0358] FIG4a is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4a, the present disclosure embodiment relates to an information transmission method, which is executed by the network device 102 and includes:

[0359] Step S4101: Send the first message.

[0360] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0361] In some embodiments, the network device 102 sends the first information to the terminal 101, but is not limited thereto and may also send the first information to other entities.

[0362] Optionally, the first information is used to indicate the time domain resource configuration of the second signal. Optional implementations thereof can be found in other related parts of the embodiment involved in FIG2a and will not be described in detail here.

[0363] FIG4b is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4b, the present disclosure embodiment relates to an information transmission method, which is executed by the network device 102, and the method includes:

[0364] Step S4201: Obtain second information.

[0365] In some embodiments, the optional implementation of step S4201 can refer to the optional implementation of step S2201 in Figure 2c and other related parts of the embodiment involved in Figure 2c, which will not be repeated here.

[0366] In some embodiments, the network device receives the second information sent by the terminal, but is not limited thereto and may also receive the first information sent by other entities.

[0367] In some embodiments, the network device obtains second information specified by the protocol.

[0368] In some embodiments, the network device obtains the second information from an upper layer(s).

[0369] In some embodiments, the network device performs processing to obtain the second information.

[0370] In some embodiments, step S4201 is omitted, and the network device autonomously implements the function indicated by the second information, or the above function is default or by default.

[0371] In some embodiments, step S4201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0372] Step S4202: Determine the TA drift.

[0373] In some embodiments, the optional implementation of step S4202 can refer to the optional implementation of step S2202 in Figure 2c and other related parts of the embodiment involved in Figure 2c, which will not be repeated here.

[0374] Step S4203: Determine the location information of the terminal.

[0375] In some embodiments, the optional implementation of step S4203 can refer to the optional implementation of step S2203 in Figure 2c and other related parts of the embodiment involved in Figure 2c, which will not be repeated here.

[0376] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S4201 to S4203. For example, step S4201 may be implemented as an independent embodiment, step S4202 may be implemented as an independent embodiment, and step S4203 may be implemented as an independent embodiment. However, the present disclosure is not limited thereto.

[0377] 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.

[0378] FIG4c is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4c, the present disclosure embodiment relates to an information transmission method, which is executed by the network device 102 and includes:

[0379] Step S4301: Obtain the second information.

[0380] In some embodiments, the optional implementation of step S4301 can refer to the optional implementation of step S2201 in Figure 2e and other related parts of the embodiment involved in Figure 2e, which will not be repeated here.

[0381] In some embodiments, the network device receives the second information sent by the terminal, but is not limited thereto and may also receive the second information sent by other entities.

[0382] In some embodiments, the network device obtains second information specified by the protocol.

[0383] In some embodiments, the network device obtains the second information from an upper layer(s).

[0384] In some embodiments, the network device performs processing to obtain the second information.

[0385] In some embodiments, step S4301 is omitted, the network device autonomously implements the function indicated by the first information, or the above function is default or by default.

[0386] In some embodiments, step S4301 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0387] Step S4302: Determine the location information of the terminal

[0388] In some embodiments, the optional implementation of step S4302 can refer to the optional implementation of step S2303 in Figure 2e and other related parts of the embodiment involved in Figure 2e, which will not be repeated here.

[0389] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S4301 and S4302. For example, step S4301 may be implemented as an independent embodiment, step S4302 may be implemented as an independent embodiment, and steps S4301 and S4302 may be implemented as independent embodiments, but the present disclosure is not limited thereto.

[0390] 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.

[0391] FIG4 d is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4 d , the present disclosure embodiment relates to an information transmission method, which is executed by the network device 102 and includes:

[0392] Step S4401: Send the first message.

[0393] In some embodiments, first information is sent to the terminal, wherein the first information is used to indicate the time domain resource configuration of the second signal, wherein the time domain position of the second information is located within a first time length after the first signal sent by the network device, wherein the first signal and the second signal are used to determine the location information of the terminal.

[0394] In some embodiments, the time domain resource configuration includes at least one of the following:

[0395] a time domain position at which the second signal is sent;

[0396] The offset value of the time domain position of sending the second signal relative to the time domain position of receiving the first signal by the terminal.

[0397] In some embodiments, the TA drift within the first time period is less than a first value.

[0398] In some embodiments, the first duration is configured by the network device; or,

[0399] The first duration is specified in the communication protocol.

[0400] FIG4e is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4e , the present disclosure embodiment relates to an information transmission method, which is executed by the network device 102 and includes:

[0401] Step S4501: Receive second information.

[0402] In some embodiments, second information sent by the terminal is received, wherein the second information is used to determine a positioning parameter associated with the TA drift, wherein the positioning parameter is used to determine the location information of the terminal.

[0403] With reference to some embodiments of the fourth aspect, in some embodiments, the second information is used to indicate a TA drift rate;

[0404] The method further includes determining a TA drift amount according to the TA drift rate, the first timestamp, and the second timestamp.

[0405] In conjunction with some embodiments of the fourth aspect, in some embodiments, the method further includes:

[0406] The first timestamp is used to indicate the time when the terminal receives the first signal;

[0407] The second timestamp is used to indicate the time when the terminal sends the second signal;

[0408] The first signal and the second signal are used to determine the location information of the terminal.

[0409] In combination with some embodiments of the fourth aspect, in some embodiments, the second information is used to indicate a receive-transmit time difference Rx-Tx time difference for compensating for the TA drift.

[0410] In combination with some embodiments of the fourth aspect, in some embodiments, the TA drift amount is determined by the terminal based on the terminal position change determined by the global navigation satellite system GNSS.

[0411] FIG5 is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG5 , the present disclosure embodiment relates to an information transmission method for a communication system 100, and the method includes one of the following steps:

[0412] Step S5101: The terminal sends a second signal within a first time period after receiving a first signal sent by a network device.

[0413] In some embodiments, the first signal and the second signal are used to determine location information of the terminal.

[0414] Optional implementations of step S5101 may refer to step S2101 in FIG. 2a , step S3102 in FIG. 3a , and other related parts in the embodiments involved in FIG. 2a , FIG. 3a , FIG. 3d , FIG. 4a , and FIG. 4d , which will not be described in detail here.

[0415] FIG6 is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG6 , the present disclosure embodiment relates to an information transmission method for a communication system 100, and the method includes one of the following steps:

[0416] Step S6101: The terminal sends second information to the network device.

[0417] In some embodiments, the second information is used to determine a positioning parameter associated with TA drift.

[0418] In some embodiments, the positioning parameters are used to determine the location information of the terminal.

[0419] For optional implementation methods of step S6101, please refer to step S2201 of Figure 2c, step S2301 of Figure 2e, step S3201 of Figure 3b, step S3302 of Figure 3c, step S4201 of Figure 4b, step S4301 of Figure 4c, and other related parts in the embodiments involved in Figures 2c, 2e, 3b, 3e, 3c, 4b, 4c, and 4e, which will not be repeated here.

[0420] The following provides a specific example in combination with any of the above embodiments:

[0421] Method 1

[0422] ● As shown in FIG2 b , the time domain position for receiving the PRS and the time domain position for sending the SRS on the terminal side are restricted to be within a predefined time window (first duration).

[0423] - The terminal receives the configuration information sent by the base station and determines the offset value of the SRS.

[0424] o The terminal determines the time domain position of the SRS based on the time domain position of the PRS and the determined offset value.

[0425] o Or the terminal directly obtains the time domain position of the SRS.

[0426] - The terminal obtains the SRS configuration based on a predefined method.

[0427] • The length of the predefined time window is predefined or preconfigured.

[0428] ●After receiving the PRS, the terminal needs to send the SRS within a predefined time window.

[0429] Method 2

[0430] ●As shown in Figure 2d, the terminal reports the TA drift rate.

[0431] ●The TA drift rate is obtained by the terminal based on GNSS measurement.

[0432] LMF calculates the terminal's location information based on the TA drift rate and the Tx_Rx time difference reported by the terminal side.

[0433] -LMF is based on the information of PRS time stamp and SRS time stamp, as well as the TA drift rate

[0434] Determine the TA change.

[0435] Method 3

[0436] ●The terminal reports the receive and send time difference (Rx_Tx time difference).

[0437] The reported value (ie, Rx_Tx time difference) includes a compensation value for TA drift.

[0438] - The reporting information includes the timestamp of the target SRS and the timestamp of the target PRS.

[0439] -LMF determines the terminal's location information based on the reported information.

[0440] 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.

[0441] 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.

[0442] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, 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, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as 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.

[0443] Figure 7a is a schematic diagram of the structure of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 7a, the terminal 7100 may include: a transceiver module 7101. In some embodiments, the above-mentioned transceiver module 7101 is used to send a second signal within a first time period after receiving a first signal sent by a network device, wherein the first signal and the second signal are used to determine the location information of the terminal. Optionally, the above-mentioned sending module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, step S2102 but not limited thereto) performed by the terminal 101 in any of the above methods and is not repeated here.

[0444] Figure 7b is a structural diagram of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 7b, the terminal 7200 may include: a transceiver module 7201. In some embodiments, the above-mentioned transceiver module 7201 is used to send second information to the network device, wherein the second information is used to determine a positioning parameter associated with TA drift, wherein the positioning parameter is used to determine the location information of the terminal. Optionally, the above-mentioned sending module is used to execute at least one of the communication steps such as sending and / or receiving (such as step S2201, step S2302 but not limited to this) executed by the terminal 101 in any of the above methods, which are not repeated here. Optionally, the terminal 7200 may also include a processing module, and the above-mentioned processing module is used to execute at least one of the communication steps such as determination (such as step S2301 but not limited to this) executed by the terminal 101 in any of the above methods, which are not repeated here.

[0445] Figure 7c is a structural diagram of a network device proposed in an embodiment of the present disclosure. As shown in Figure 7c, the network device 7300 may include: a transceiver module 7301. In some embodiments, the above-mentioned transceiver module 7301 is used to send first information to the terminal, wherein the first information is used to indicate the time domain resource configuration of the second signal, wherein the time domain position of the second information is located within a first time length after the first signal sent by the network device, wherein the first signal and the second signal are used to determine the location information of the terminal. Optionally, the above-mentioned transceiver module is used to execute the communication steps such as sending and / or receiving performed by the network device 102 in any of the above methods (for example, step S2101, step S2102 but not limited thereto), which will not be repeated here.

[0446] Figure 7d is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure. As shown in Figure 7d, the network device 7400 may include: a transceiver module 7401. In some embodiments, the transceiver module 7401 is used to receive second information sent by the terminal, wherein the second information is used to determine a positioning parameter associated with TA drift, wherein the positioning parameter is used to determine the location information of the terminal. Optionally, the transceiver module is used to perform the communication steps such as sending and / or receiving performed by the network device 102 in any of the above methods (for example, step S2201, step S2301 but not limited thereto), which are not repeated here. Optionally, the network device 7400 may further include a processing module, and the processing module is used to perform at least one of the communication steps such as determination performed by the network device 102 in any of the above methods (for example, step S2202, step S2203, step S2303 but not limited thereto), which are not repeated here.

[0447] Figure 8a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 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 8100 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.

[0448] As shown in Figure 8a, the communication device 8100 includes one or more processors 8101. The processor 8101 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 the communication protocol 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 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0449] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, step S2102, step S2201, step S2301, but not limited thereto), and the processor 8101 performs at least one of the other steps. 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.

[0450] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memory 8102 and may be configured to receive data from the memory 8102 or other devices, or to send data to the memory 8102 or other devices. For example, the interface circuits 8104 may read data stored in the memory 8102 and send the data to the processor 8101.

[0451] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8a. 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 or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0452] FIG8b is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8b, but the present disclosure is not limited thereto.

[0453] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0454] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0455] In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., but not limited to, steps S2101, S2102, S2201, and S2301) of the aforementioned method. For example, the interface circuit 8202 performing the communication steps (e.g., sending and / or receiving) of the aforementioned method means that the interface circuit 8202 performs data exchange between the processor 8201, chip 8200, memory 8203, or a transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps.

[0456] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0457] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0458] 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 method for transmitting information, wherein: The method is executed by a terminal, and includes: A second signal is sent within a first time period after a first signal sent by a network device is received, wherein the first signal and the second signal are used to determine the location information of the terminal.

2. The method according to claim 1, wherein: The method further comprises: Sending the second signal within the first duration after receiving the first signal according to the time domain resource configuration of the second signal, wherein the time domain resource configuration includes at least one of the following: a time domain position at which the second signal is sent; An offset value of a time domain position at which the second signal is sent relative to a time domain position at which the first signal is received by the terminal.

3. The method according to claim 2, wherein: The method further comprises: Receive first information sent by the network device and used to indicate the time domain resource configuration.

4. The method according to any one of claims 1 to 3, wherein: The TA drift amount within the first time period is less than a first value.

5. The method according to any one of claims 1 to 3, wherein: The first duration is configured by the network device; or, The first duration is specified in the communication protocol.

6. A method for transmitting information, wherein: The method is performed by a network device, and the method includes: Sending first information to a terminal, wherein the first information is used to indicate a time domain resource configuration of a second signal, wherein the time domain position of the second information is located within a first time length after the first signal sent by the network device, and wherein the first signal and the second signal are used to determine the location information of the terminal.

7. The method according to claim 6, wherein: The time domain resource configuration includes at least one of the following: a time domain position at which the second signal is sent; An offset value of a time domain position at which the second signal is sent relative to a time domain position at which the first signal is received by the terminal.

8. The method according to claim 6 or 7, wherein: The TA drift amount within the first time period is less than a first value.

9. The method according to any one of claims 6 to 8, wherein: The first duration is configured by the network device; or, The first duration is specified in the communication protocol.

10. A method for transmitting information, wherein: The method is executed by a terminal, and includes: Second information is sent to the network device, wherein the second information is used to determine a positioning parameter associated with a timing advance (TA) drift, wherein the positioning parameter is used to determine the location information of the terminal.

11. The method according to claim 10, wherein: The second information is used to indicate a TA drift rate, and the TA drift rate is used by the network device to determine the TA drift amount in combination with the first timestamp and the second timestamp.

12. The method according to claim 11, wherein: The first timestamp is used to indicate the time when the terminal receives the first signal; The second timestamp is used to indicate the time when the terminal sends the second signal; The first signal and the second signal are used to determine the location information of the terminal.

13. The method according to claim 10, wherein: The second information is used to indicate a receive-transmit time difference Rx-Tx time difference for compensating the TA drift.

14. The method according to claim 13, wherein: The method further comprises: Determining a change in the position of the terminal based on a global navigation satellite system GNSS; The TA drift amount is determined according to the position change of the terminal.

15. A method for transmitting information, wherein: The method is performed by a network device, and the method includes: Second information sent by a receiving terminal is received, wherein the second information is used to determine a positioning parameter associated with a timing advance (TA) drift, wherein the positioning parameter is used to determine location information of the terminal.

16. The method according to claim 15, wherein: The second information is used to indicate a TA drift rate; The method further includes determining the TA drift amount according to the TA drift rate, the first timestamp, and the second timestamp.

17. The method according to claim 16, wherein: The method further comprises: The first timestamp is used to indicate the time when the terminal receives the first signal; The second timestamp is used to indicate the time when the terminal sends the second signal; The first signal and the second signal are used to determine the location information of the terminal.

18. The method according to claim 15, wherein: The second information is used to indicate a receive-transmit time difference Rx-Tx time difference for compensating for the TA drift.

19. The method according to claim 18, wherein: The TA drift amount is determined by the terminal based on a change in the terminal position determined by a global navigation satellite system GNSS.

20. A method for transmitting information, wherein: The method is performed by a communication system, and the method includes: The terminal sends a second signal within a first time period after receiving a first signal sent by a network device, wherein the first signal and the second signal are used to determine the location information of the terminal.

21. A method for transmitting information, wherein: The method is performed by a communication system, and the method includes: The terminal sends second information to the network device, wherein the second information is used to determine a positioning parameter associated with a timing advance TA drift, wherein the positioning parameter is used to determine the location information of the terminal.

22. A terminal, wherein: The terminal comprises: The transceiver module is configured to send a second signal within a first time period after receiving a first signal sent by a network device, wherein the first signal and the second signal are used to determine the location information of the terminal.

23. A network device, wherein: The network equipment includes: A transceiver module is configured to send first information to a terminal, wherein the first information is used to indicate a time domain resource configuration of a second signal, wherein the time domain position of the second information is located within a first time length after the first signal sent by the network device, and wherein the first signal and the second signal are used to determine the location information of the terminal.

24. A terminal, wherein: The terminal comprises: The transceiver module is configured to send second information to the network device, wherein the second information is used to determine a positioning parameter associated with a timing advance TA drift, wherein the positioning parameter is used to determine the location information of the terminal.

25. A network device, wherein: The network equipment includes: The transceiver module is configured to receive second information sent by the terminal, wherein the second information is used to determine a positioning parameter associated with a timing advance TA drift, wherein the positioning parameter is used to determine the location information of the terminal.

26. A communication system, wherein: The information transmission system includes a terminal and a network device, wherein: The terminal is configured to implement the information transmission method according to any one of claims 1 to 5 and claims 10 to 14, The network device is configured to implement the information transmission method according to any one of claims 6 to 9 and claims 15 to 19.

27. A communication device, wherein: The communication device comprises: one or more processors; The processor is used to call instructions so that the communication device executes the information transmission method according to any one of claims 1 to 5, claims 10 to 14, claims 6 to 9, and claims 15 to 19.

28. A storage medium, wherein: The storage medium stores instructions, and when the instructions are executed on the communication device, the communication device executes the information transmission method according to any one of claims 1 to 5, claims 10 to 14, claims 6 to 9, and claims 15 to 19.

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