CN117280796A

CN117280796A - Information transmission method and device, communication equipment, communication system and storage medium

Info

Publication number: CN117280796A
Application number: CN202380010527.XA
Authority: CN
Inventors: 朱亚军
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2023-12-22

Abstract

The embodiment of the disclosure provides an information transmission method and device, a communication system and a storage medium. And the terminal transmits a second signal in a first time period after receiving the first signal transmitted by the network equipment, wherein the first signal and the second signal are used for determining the position information of the terminal.

Description

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

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an information transmission method and apparatus, a communication device, a communication system, and a storage medium.

Background

New generation of new internet applications such as augmented Reality (Augmented Reality, AR)/Virtual Reality (VR), vehicle-to-vehicle communication, etc., are continuously emerging, and higher requirements are put forward for wireless communication technologies, so as to drive the continuous evolution of the wireless communication technologies to meet the application requirements. Currently, cellular mobile communication technology is in the evolution phase of the new generation technology. An important feature of the new generation of technology is the flexible configuration that supports multiple service types. As different service types have different requirements on wireless communication technologies, the main requirements of the enhanced mobile broadband (Enhanced Mobile Broadband, eMBB) service types are focused on the aspects of large bandwidth, high speed and the like; the main requirements of the high reliability and low latency communication (Ultra-reliable and Low Latency Communications, URLLC) traffic types are focused on higher reliability and low latency; the main requirement of the business type of mass internet of things communication (Massive Machine Type Communication, mctc) is focused on the aspect of large connection number. Accordingly, new generation wireless communication systems require flexible and configurable designs to support the transmission of multiple traffic types.

Disclosure of Invention

As the functions of the terminal are enhanced, the energy consumption of the terminal is high, resulting in weak endurance.

The embodiment of the disclosure provides an information transmission method and device, communication equipment and storage medium.

According to a first aspect of the embodiments of the present disclosure, the embodiments of the present disclosure propose an information transmission method, where the method is performed by a terminal, the method includes:

and transmitting a second signal in a first time period after receiving the first signal transmitted by the network equipment, wherein the first signal and the second signal are used for determining the position information of the terminal.

According to a second aspect of the disclosed embodiments, the disclosed embodiments propose an information transmission method, wherein the method is performed by a network device, the method comprising:

and sending first information to a terminal, wherein the first information is used for indicating time domain resource configuration of a second signal, wherein the time domain position of the second information is located in a first time length after the first signal sent by the network equipment, and the first signal and the second signal are used for determining position information of the terminal.

According to a third aspect of the embodiments of the present disclosure, the embodiments of the present disclosure propose an information transmission method, where the method is performed by a terminal, the method includes:

And sending second information to a network device, wherein the second information is used for determining a positioning parameter associated with Timing Advance (TA) drift, and the positioning parameter is used for determining position information of the terminal.

According to a fourth aspect of the embodiments of the present disclosure, the embodiments of the present disclosure propose an information transmission method, where the method is performed by a network device, the method includes:

and receiving second information sent by the terminal, wherein the second information is used for determining a positioning parameter associated with TA drift, and the positioning parameter is used for determining the position information of the terminal.

According to a fifth aspect of the disclosed embodiments, the disclosed embodiments propose an information transmission method, wherein the method is performed by a communication system, the method comprising:

and the terminal transmits a second signal in a first time period after receiving the first signal transmitted by the network equipment, wherein the first signal and the second signal are used for determining the position information of the terminal.

According to a sixth aspect of the embodiments of the present disclosure, the embodiments of the present disclosure propose an information transmission method, wherein the method is performed by a communication system, the method comprising:

The terminal sends second information to the network device, wherein the second information is used for determining a positioning parameter associated with Timing Advance (TA) drift, and the positioning parameter is used for determining position information of the terminal.

According to a seventh aspect of the embodiments of the present disclosure, the embodiments of the present disclosure propose a terminal, the terminal including at least one of a transceiver module and a processing module; wherein the terminal is configured to perform the optional implementation manner of the first aspect.

According to an 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 configured to perform the optional implementation manner of the second aspect.

According to a ninth aspect of the embodiments of the present disclosure, the embodiments of the present disclosure propose a terminal, the terminal including at least one of a transceiver module and a processing module; wherein the terminal is configured to perform the optional implementation manner of the third aspect.

According to a tenth aspect of embodiments of the present disclosure, embodiments of the present disclosure propose a network device comprising at least one of a transceiver module, a processing module; wherein the network device is configured to perform the optional implementation manner of the fourth aspect.

According to an eleventh aspect of the disclosed embodiments, the disclosed embodiments propose a communication system, the information transmission system comprising a terminal and a network device, wherein,

the terminal is configured to implement the information transmission method of the first aspect or the third aspect,

the network device is configured to implement the information transmission method of the first aspect or the third aspect.

According to a twelfth aspect of the embodiments of the present disclosure, the embodiments of the present disclosure propose a communication device, wherein the communication device comprises:

one or more processors;

wherein the processor is configured to invoke instructions to cause the communication device to perform the information transmission method according to the first aspect or the second aspect or the third aspect or the fourth aspect.

According to a thirteenth aspect of the disclosed embodiments, the disclosed embodiments propose a storage medium, wherein the storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the information transmission method of the first aspect or the second aspect or the third aspect or the fourth aspect.

And limiting the time domain position of the second signal, so that the TA drift amount can be limited in a certain range, and the positioning accuracy is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of embodiments of the disclosure.

Drawings

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

FIG. 1a is a schematic diagram of an architecture of a communication system, shown according to an exemplary embodiment;

FIG. 1b is a diagram of an uplink and downlink timing sequence according to an example embodiment;

FIG. 1c is a diagram of an uplink and downlink timing sequence according to an example embodiment;

FIG. 1d is a multi-round trip time schematic diagram illustrating one example embodiment;

FIG. 1e is a diagram of an uplink and downlink timing sequence according to an example embodiment;

FIG. 2a is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 2b is a diagram of an uplink and downlink timing sequence according to an example embodiment;

FIG. 2c is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 2d is a diagram of an uplink and downlink timing sequence according to an example embodiment;

FIG. 2e is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 3a is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 3b is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 3c is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 3d is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 3e is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 4a is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 4b is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 4c is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 4d is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 4e is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

FIG. 5 is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

Fig. 6 is a flow chart illustrating a method of information transmission according to an exemplary embodiment;

fig. 7a is a schematic diagram of a terminal structure according to an exemplary embodiment;

FIG. 7b is a schematic diagram of a terminal structure according to an exemplary embodiment;

fig. 7c is a schematic diagram of an access network device according to an exemplary embodiment;

fig. 7d is a schematic diagram of an access network device according to an exemplary embodiment;

fig. 8a is a schematic diagram illustrating a structure of a UE according to an exemplary embodiment;

fig. 8b is a schematic diagram of a communication device according to an exemplary embodiment.

Detailed Description

The embodiment of the disclosure provides an information transmission method and device, a communication system and a storage medium.

In a first aspect, an embodiment of the present disclosure proposes an information transmission method, where the method is performed by a terminal, the method includes:

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

With reference to some embodiments of the first aspect, in some embodiments, the method further includes:

transmitting the second signal in the first time period after receiving the first signal according to the time domain resource configuration of the second signal, wherein the time domain resource configuration comprises at least one of the following:

transmitting a time domain position of the second signal;

and transmitting an offset value of the time domain position of the second signal relative to the time domain position of the first signal received by the terminal.

In the above embodiment, the time domain position of the second signal in the first time period is configured according to the time domain resource, on one hand, the time domain position of the second signal is limited, so that the TA drift amount can be limited in a certain range, and the positioning accuracy is improved. On the other hand, the time domain position of the second signal is indicated in a different way, so that the configuration flexibility is improved.

and receiving first information sent by the network equipment and used for indicating the time domain resource configuration.

In the above embodiment, the network device indicates the time domain position of the second signal in the first duration, and on one hand, limits the time domain position of the second signal, so that the TA drift amount can be limited in a certain range, and positioning accuracy is improved. On the other hand, the time domain position of the second signal is indicated in a different way, so that the configuration flexibility is improved.

With reference to some embodiments of the first aspect, in some embodiments, the TA drift amount in the first duration is less than a first value.

In the above embodiment, the second signal is sent within the first time period after the first signal, and the time domain position of sending the second signal is limited, so that the TA drift amount can be limited within the first value, and the positioning accuracy is improved.

With reference to some embodiments of the first aspect, in some embodiments, the first duration is configured by the network device; or,

the first time period is specified by a communication protocol.

In the above embodiment, the first time length is configured in different manners, so that the flexibility of configuring the first time length is improved.

In a second aspect, an embodiment of the present disclosure proposes an information transmission method, where the method is performed by a network device, the method including:

With reference to some embodiments of the second aspect, in some embodiments, the time domain resource configuration includes at least one of:

transmitting a time domain position of the second signal;

With reference to some embodiments of the second aspect, in some embodiments, the TA drift amount in the first period of time is less than a first value.

With reference to some embodiments of the second aspect, in some embodiments, the first duration is configured by the network device; or,

the first time period is specified by a communication protocol.

In a third aspect, an embodiment of the present disclosure proposes an information transmission method, where the method is performed by a terminal, the method includes:

and sending second information to the network equipment, wherein the second information is used for determining a positioning parameter associated with TA drift, and the positioning parameter is used for determining the position information of the terminal.

In the above embodiment, the terminal reports the positioning parameter related to the TA drift to the network device, and the network device may consider the influence of the TA drift when determining the terminal position information, thereby improving the positioning accuracy.

With reference to some embodiments of the third aspect, 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 the TA drift amount in combination with a first timestamp and a second timestamp.

In the above embodiment, the terminal reports the TA drift rate to the network device, and the network device may determine the TA drift amount, so that the influence of the TA drift amount may be considered when determining the terminal location information, thereby improving the positioning accuracy.

With reference to some embodiments of the third aspect, in some embodiments, the first timestamp is used to indicate a time at which the first signal was received by the terminal;

the second timestamp is used for indicating the moment when the terminal sends a second signal;

wherein the first signal and the second signal are used to determine location information of the terminal.

In the above embodiment, the terminal reports the first timestamp and the second timestamp to the network device, and the network device may determine a duration of determining the TA drift amount based on the TA drift rate, so as to improve accuracy of the determined TA drift amount.

With reference to 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) that compensates for the TA drift.

In the above embodiment, the terminal reports the receiving and transmitting time difference Rx-Tx time difference associated with compensating the TA drift amount to the network device, and the network device can compensate the influence of the TA drift when determining the terminal position information, thereby improving the positioning accuracy.

With reference to some embodiments of the third aspect, in some embodiments, the method further includes:

determining a change in position of the terminal based on a global navigation satellite system GNSS;

and determining the TA drift amount according to the position change of the terminal.

In a fourth aspect, an embodiment of the present disclosure proposes an information transmission method, where the method is performed by a network device, the method including:

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

The method further comprises the steps of: and determining the TA drift amount according to the TA drift rate, the first timestamp and the second timestamp.

With reference to some embodiments of the fourth aspect, in some embodiments, the method further includes:

the first timestamp is used for indicating the moment when the terminal receives a first signal;

With reference to 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 that compensates for TA drift.

With reference to 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.

In a fifth aspect, an embodiment of the present disclosure proposes an information transmission method, wherein the method is performed by a communication system, the method comprising:

In a sixth aspect, an embodiment of the present disclosure proposes an information transmission method, where the method is performed by a communication system, the method including:

the terminal sends second information to the network device, wherein the second information is used for determining a positioning parameter associated with TA drift, and the positioning parameter is used for determining position information of the terminal.

In a seventh aspect, an embodiment of the present disclosure proposes a terminal, where the terminal includes at least one of a transceiver module and a processing module; wherein the terminal is configured to perform the optional implementation manner of the first aspect.

In an eighth aspect, an embodiment of the present disclosure proposes a network device, where the network device includes at least one of a transceiver module and a processing module; wherein the network device is configured to perform the optional implementation manner of the second aspect.

In a ninth aspect, an embodiment of the present disclosure proposes a terminal, where the terminal includes at least one of a transceiver module and a processing module; wherein the terminal is configured to perform the optional implementation manner of the third aspect.

In a tenth aspect, an embodiment of the present disclosure proposes a network device, where the network device includes at least one of a transceiver module and a processing module; wherein the network device is configured to perform the optional implementation manner of the fourth aspect.

In an eleventh aspect, an embodiment of the present disclosure proposes a communication system, the information transmission system including a terminal and a network device, wherein,

In a twelfth aspect, an embodiment of the present disclosure proposes a communication device, wherein the communication device includes:

one or more processors;

In a thirteenth aspect, an embodiment of the present disclosure proposes a storage medium, where the storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the information transmission method of the first aspect or the second aspect or the third aspect or the fourth aspect.

The embodiment of the disclosure provides an information transmission method and device, a communication system and a storage medium. In some embodiments, terms of an information transmission method and an information processing method, an information transmission method, and the like may be replaced with each other, terms of an information transmission device and an information processing device, an information transmission device, and the like may be replaced with each other, and terms of a communication system, an information processing system, and the like may be replaced with each other.

The embodiments of the present disclosure are not intended to be exhaustive, but rather are exemplary of some embodiments and are not intended to limit the scope of the disclosure. In the case of no contradiction, each step in a certain embodiment may be implemented as an independent embodiment, and the steps may be arbitrarily combined, for example, a scheme in which part of the steps are removed in a certain embodiment may also be implemented as an independent embodiment, the order of the steps in a certain embodiment may be arbitrarily exchanged, and further, alternative implementations in a certain embodiment may be arbitrarily combined; furthermore, various embodiments may be arbitrarily combined, for example, some or all steps of different embodiments may be arbitrarily combined, and an embodiment may be arbitrarily combined with alternative implementations of other embodiments.

In the various embodiments of the disclosure, terms and/or descriptions of the various embodiments are consistent throughout the various embodiments and may be referenced to each other in the absence of any particular explanation or logic conflict, and features from different embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

In the presently disclosed embodiments, elements that are referred to in the singular, such as "a," "an," "the," "said," etc., may mean "one and only one," or "one or more," "at least one," etc., unless otherwise indicated. For example, where an article (article) is used in translation, such as "a," "an," "the," etc., in english, a noun following the article may be understood as a singular expression or as a plural expression.

In the presently disclosed embodiments, "plurality" refers to two or more.

In some embodiments, terms such as "at least one of (at least one of), at least one of (at least one of)", "one or more of", "multiple of", and the like may be substituted for each other.

In some embodiments, "A, B at least one of", "a and/or B", "a in one case, B in another case", "a in one case, B" and the like, may include the following technical solutions according to circumstances: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments, execution is selected from a and B (a and B are selectively executed); in some embodiments a and B (both a and B are performed). Similar to that described above when there are more branches such as A, B, C.

In some embodiments, the description modes such as "a or B" may include the following technical schemes according to circumstances: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments execution is selected from a and B (a and B are selectively executed). Similar to that described above when there are more branches such as A, B, C.

The prefix words "first", "second", etc. in the embodiments of the present disclosure are only for distinguishing different description objects, and do not limit the location, order, priority, number, content, etc. of the description objects, and the statement of the description object refers to the claims or the description of the embodiment context, and should not constitute unnecessary limitations due to the use of the prefix words. For example, if the description object is a "field", the ordinal words before the "field" in the "first field" and the "second field" do not limit the position or the order between the "fields", and the "first" and the "second" do not limit whether the "fields" modified by the "first" and the "second" are in the same message or not. For another example, describing an object as "level", ordinal words preceding "level" in "first level" and "second level" do not limit priority between "levels". As another example, the number of descriptive objects is not limited by ordinal words, and may be one or more, taking "first device" as an example, where the number of "devices" may be one or more. Furthermore, objects modified by different prefix words may be the same or different, e.g., the description object is "a device", then "a first device" and "a second device" may be the same device or different devices, and the types may be the same or different; for another example, the description object is "information", and the "first information" and the "second information" may be the same information or different information, and the contents thereof may be the same or different.

In some embodiments, "comprising a", "containing a", "for indicating a", "carrying a", may be interpreted as carrying a directly, or as indicating a indirectly.

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

In some embodiments, terms "responsive to … …", "responsive to determination … …", "in the case of … …", "at … …", "when … …", "if … …", "if … …", and the like may be interchanged.

In some embodiments, terms "greater than", "greater than or equal to", "not less than", "more than or equal to", "not less than", "above" and the like may be interchanged, and terms "less than", "less than or equal to", "not greater than", "less than or equal to", "not more than", "below", "lower than or equal to", "no higher than", "below" and the like may be interchanged.

In some embodiments, an apparatus or the like may be interpreted as an entity, or may be interpreted as a virtual, and the names thereof are not limited to the names described in the embodiments, "apparatus," "device," "circuit," "network element," "node," "function," "unit," "section," "system," "network," "chip system," "entity," "body," and the like may be replaced with each other.

In some embodiments, a "network" may be interpreted as an apparatus (e.g., access network device, core network device, etc.) contained in a network.

In some embodiments, "access network device (access network device, AN device)", "radio access network device (radio access network device, RAN device)", "Base Station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node (node)", "access point (access point)", "transmit point (transmission point, TP)", "Receive Point (RP)", "transmit receive point (transmit/receive point), the terms TRP)", "panel", "antenna array", "cell", "macrocell", "microcell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier (component carrier)", bandwidth part (BWP) and the like may be replaced with each other.

In some embodiments, "terminal," terminal device, "" user equipment, "" user terminal, "" mobile station, "" mobile terminal, MT) ", subscriber station (subscriber station), mobile unit (mobile unit), subscriber unit (subscriber unit), wireless unit (wireless unit), remote unit (remote unit), mobile device (mobile device), wireless device (wireless device), wireless communication device (wireless communication device), remote device (remote device), mobile subscriber station (mobile subscriber station), access terminal (access terminal), mobile terminal (mobile terminal), wireless terminal (wireless terminal), remote terminal (remote terminal), handheld device (handset), user agent (user agent), mobile client (mobile client), client (client), and the like may be substituted for each other.

In some embodiments, the access network device, core network device, or network device may be replaced with a terminal. For example, the embodiments of the present disclosure may also be applied to a configuration in which an access network device, a core network device, or communication between a network device and a terminal is replaced with communication between a plurality of terminals (for example, device-to-device (D2 b), vehicle-to-device (V2X), or the like). In this case, the terminal may have all or part of the functions of the access network device. In addition, terms such as "uplink", "downlink", and the like may be replaced with terms corresponding to communication between terminals (e.g., "side)". For example, uplink channels, downlink channels, etc. may be replaced with side-uplink channels, uplink, downlink, etc. may be replaced with side-downlink channels.

In some embodiments, the terminal may be replaced with 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 all or part of the functions of the terminal.

In some embodiments, the acquisition of data, information, etc. may comply with laws and regulations of the country of locale.

In some embodiments, data, information, etc. may be obtained after user consent is obtained.

Furthermore, each element, each row, or each column in the tables of the embodiments of the present disclosure may be implemented as a separate embodiment, and any combination of elements, any rows, or any columns may also be implemented as a separate embodiment.

Fig. 1a is a schematic architecture diagram of a communication system shown in accordance with an embodiment of the present disclosure.

As shown in fig. 1a, a communication system 100 includes a terminal (terminal) 101 and a network device 102. Network device 102 may include access network devices and core network devices.

In some embodiments, the terminal 101 includes at least one of a mobile phone (mobile phone), a wearable device, an internet of things device, a communication enabled car, a smart car, a tablet (Pad), a wireless transceiver enabled computer, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), for example, but is not limited thereto.

In some embodiments, the access network device may be, for example, a node or a device that accesses a terminal to a wireless network, and the access network device may include at least one of an evolved NodeB (eNB), a next generation NodeB (next generation eNB, ng-eNB), a next generation NodeB (next generation NodeB, gNB), a NodeB (node B, NB), a Home NodeB (HNB), a home NodeB (home evolved nodeB, heNB), a wireless backhaul device, a radio network controller (radio network controller, RNC), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a baseband 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, an access node in a Wi-Fi system, but is not limited thereto.

In some embodiments, the technical solutions of the present disclosure may be applied to an Open RAN architecture, where an access network device or an interface in an access network device according to the embodiments of the present disclosure may become an internal interface of the Open RAN, and flow and information interaction between these internal interfaces may be implemented by using software or a program.

In some embodiments, the access network device may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split the protocol layers of the access network device, where functions of part of the protocol layers are centrally controlled by the CU, and functions of the rest of all the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU, but is not limited thereto.

In some embodiments, the core network device comprises at least one of an evolved packet core (Evolved Packet Core, EPC), a 5G core network (5G Core Network,5GCN), a next generation core (Next Generation Core, NGC), for example.

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art may know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are applicable to similar technical problems.

The embodiments of the present disclosure described below may be applied to the communication system 100 shown in fig. 1a, or a part of the body, but are not limited thereto. The respective bodies shown in fig. 1a are examples, and the communication system may include all or part of the bodies in fig. 1a, or may include other bodies than fig. 1a, and the number and form of the respective bodies are arbitrary, and the connection relationship between the respective bodies is examples, and the respective bodies may not be connected or may be connected, and the connection may be arbitrary, direct connection or indirect connection, or wired connection or wireless connection.

Embodiments of the present disclosure may be applied to long term evolution (Long Term Evolution, LTE), LTE-Advanced (LTE-a), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, fourth generation mobile communication system (4th generation mobile communication system,4G)), fifth generation mobile communication system (5th generation mobile communication system,5G), 5G New air interface (New Radio, NR), future Radio access (Future Radio Access, FRA), new Radio access technology (New-Radio Access Technology, RAT), new Radio (New Radio, NR), new Radio access (New Radio access, NX), future generation Radio access (Future generation Radio access, FX), global System for Mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (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)), land public mobile network (Public Land Mobile Network, PLMN) network, device-to-Device (D2B) system, machine-to-machine (Machine to Machine, M2M) system, internet of things (Internet of Things, ioT) system, vehicle-to-eventing (V2X), system utilizing other information transmission methods, next generation system extended based on them, and the like. In addition, a plurality of system combinations (e.g., LTE or a combination of LTE-a and 5G, etc.) may be applied.

In the research of wireless communication technology, satellite communication is considered as an important aspect of future development of wireless communication technology. Satellite communication refers to communication by a radio communication apparatus on the ground using a satellite as a relay. The satellite communication system is composed of a satellite part and a ground part. The satellite communication is characterized in that: the communication range is large; communication can be performed from any two points as long as the communication is within the range covered by the electric wave emitted by the satellite; is not easily affected by land disasters (high reliability). Satellite communications, as a complement to current terrestrial cellular communications systems, may have the following benefits:

extension covering: for areas with high cost, such as ocean, desert, remote mountain areas and the like, which cannot be covered by the current cellular communication system, the problem of communication can be solved through satellite communication.

Emergency communication: in extreme cases where disasters such as earthquakes and the like have occurred that render the infrastructure for cellular communications unusable, a communication connection can be established quickly using satellite communications.

Industry applications are provided: for example, for long-distance transmission delay sensitive services, the delay of service transmission can be reduced by satellite communication.

It is expected that in future wireless communication systems, the satellite communication system and the terrestrial cellular communication system will gradually achieve deep convergence, and truly achieve intelligent networking.

In satellite communication systems, there is a large deviation in uplink and downlink time sequences (timing) due to a large propagation distance. As shown in fig. 1b and 1c, the terminal needs to maintain uplink synchronization based on GNSS measurements and some assistance information.

In the satellite communication scenario, the data transmission has a relatively long time due to a relatively long signal transmission distance between the transmitting end and the receiving end. For transmissions with uplink and downlink relationships, the introduction of delay parameters to compensate for transmission delays is determined in the current standardization discussion. In order to determine the delay parameter, the terminal needs to report the position information.

The terminal may acquire its own location information based on its own GNSS measurement and report it to the network side, but for the network side, the location information acquired by the terminal based on the GNSS is unreliable. Such as: the terminal reports inaccurate position information; the GNSS information of the terminal is tampered with, etc.

Whether the location information is reliable may be verified by way of the network device providing the location information.

For a network positioning based scenario in a satellite communication scenario. The multi-round trip time (multi Round Trip Time, multi-RTT) measurement may be performed at different measurement times (-x, 0, x) using one satellite, or the multi-RTT measurement may be performed at the same or different measurement times using a different satellite, as shown in fig. 1d, to obtain location information of the terminal.

In some embodiments, the location information of the terminal may be acquired by means of a multi-RTT, as shown in fig. 1 d.

In the multi-RTT scenario, as shown in fig. 1e, there is no limitation between the moment when the terminal transmits the SRS and the moment when the PRS is transmitted, and there may be a problem of timing drift (timing drift), which results in a decrease in positioning accuracy.

The embodiment of the disclosure shows an interaction schematic diagram of an information transmission method. As shown in fig. 2a, an embodiment of the present disclosure relates to an information transmission method for a communication system 100, the method comprising:

step S2101: the network device transmits the first information.

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

In some embodiments, the second signal is a signal that the terminal transmits 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 location information of the terminal.

In some embodiments, the location information of the terminal includes one of:

the geographic location of the terminal;

the relative position of the terminal with respect to the network device;

the distance between the terminal and the network equipment;

the orientation of the terminal with respect to the network device.

In some embodiments, the network device determines a distance between the network device and the terminal based on the transmission durations of the first signal and the second signal.

In some embodiments, the transmission of the first signal from the network device to the reception of the second signal transmitted by the terminal may be referred to as a Round Trip Time (RTT). The network device may determine a distance of the network device from the terminal based on round trip times of the first signal and the second signal.

In some embodiments, as shown in fig. 1d, the network device may determine the distance between the network device and the terminal, and thus the location of the terminal, at a plurality of different times, respectively.

In some embodiments, the network device may determine a distance of the network device from the terminal based on round trip times of the first signal and the second signal, and determine a relative position of the network device and the terminal based on an angle of arrival (Angles of Arrival, AOA) of the second signal, thereby determining a position of the terminal.

In some embodiments, the first signal may include a positioning reference signal (Positioning Reference Signal, PRS).

In some embodiments, the second signal may include a sounding reference signal (Sounding Reference Signal, SRS).

In some embodiments, the time domain resource configuration is used to indicate at least one of: transmitting a time domain position of the second signal; the time domain position at which the second signal is transmitted is offset from the time domain position at which the first signal is received by the terminal.

In some embodiments, the terminal determines the time domain location of the second signal from the time domain resource configuration of the received first signal.

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 of the first signal received by the terminal.

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

In some embodiments, the starting time of the first duration is a 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 first signal is received by the terminal.

In some embodiments, the TA drift amount is less than the first value for a first period of time.

Step S2102: the terminal transmits a second signal.

In some embodiments, the terminal transmits the second signal for a first time period after receiving the first signal transmitted by the network device as shown in fig. 2 b.

In some embodiments, the first duration may be expressed in absolute time units. For example, the first duration may take seconds or milliseconds as a unit. The first duration is X seconds/millisecond, X being a positive number.

In some embodiments, the first duration may be represented in logical time units. The logical time units may include one of: ofdm symbols; time slots; a sub-frame; a radio frame.

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

In some embodiments, the terminal transmits the second signal within M subframes after the wireless subframe in which the first signal is received, where M is a positive integer.

In some embodiments, the terminal determines the time domain location 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 according to the first information is located in a first time period after the terminal receives the first signal.

In some embodiments, the time domain resource configuration may be terminal configured. The terminal may set time domain resources of the second signal in the manner within the first time period.

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

In some embodiments, the network device determines the first information based on a first time length. The network device may set the time domain resource of the second signal within the first time duration. And the terminal determines the time domain position of the second signal according to the time domain resource configuration of the second signal.

In some embodiments, the first duration is network device configured.

In some embodiments, the first time period is specified by a communication protocol.

In some embodiments, the first time period is preconfigured.

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

In some embodiments, the duration of the first duration is inversely related to the relative movement speed. And when the movement speed is greater than the speed threshold, configuring the duration of the first duration to be less than the first duration.

In some embodiments, the TA drift amount is an amount characterizing the variation of TA over the first duration.

In some embodiments, the TA drift amount is positively correlated with the terminal positioning error. The TA drift amount is positively correlated with the error in the network device's determination of the location of the terminal.

The positioning error includes at least one of: an error in the distance between the network device and the terminal; the network equipment determines the error of the terminal position; the network device determines an error in the round trip time of the first signal and the second signal.

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

In some embodiments, the first value is inversely related to the positioning error.

In some embodiments, the second signal is sent in a first time period, and the TA offset in the first time period is smaller than the first value, so that the positioning accuracy degree can be improved.

In some embodiments, the terminal reports to the network device at least one of: 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 first signal was received by the terminal and the second timestamp of the second signal indicates the time when the second signal was transmitted by the terminal.

In some embodiments, rx_ Tx time difference includes a terminal rx_ Tx time difference. Rx_ Tx time difference may be the difference of the terminal's received downlink radio frame timing from the network device minus the terminal's transmitted uplink radio frame timing.

In some embodiments, rx_ Tx time difference can determine TA.

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 transmit time difference (rx_ Tx time difference), and/or the like.

For example, the network device transmitting a first signal to the receiving terminal transmitting a second signal may be referred to as a round trip. The network device may determine a distance of the network device from the terminal based on round trip times of the first signal and the second signal. And further determining location information of the terminal. For example, the network device may determine a distance of the network device from the terminal based on the time of flight of the first signal and the time of flight of the second signal.

In some embodiments, the term "information" may be interchangeable with terms of "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", "data", etc.

In some embodiments, the term "send" may be interchangeable with terms of "transmit," "report," "transmit," and the like.

The information transmission method according to the embodiment of the present disclosure may include at least one of step S2101 to step S2102. For example, step S2101 may be implemented as a separate embodiment, step S2102 may be implemented as a separate embodiment, and steps S2101 through S2102 may be implemented as a separate embodiment. But is not limited thereto.

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

In the embodiments of the present disclosure, some or all of the steps and alternative implementations thereof may be arbitrarily combined with some or all of the steps in other embodiments, and may also be arbitrarily combined with alternative implementations of other embodiments.

The embodiment of the disclosure shows an interaction schematic diagram of an information transmission method. As shown in fig. 2c, an embodiment of the present disclosure relates to an information transmission method for a communication system 100, the method comprising:

step S2201: the terminal transmits the second information.

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

In some embodiments, a network device may include: network element functions in the core network device. For example, the network device may be a location management function (Location Management Function, LMF) in a core network device.

In some embodiments, the terminal sends the second information to the core network device through the base station. An access and mobility management function (Access and Mobility Management Function, AMF) in the core network device receives the second information and forwards the second information to the LMF.

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

In some embodiments, the positioning parameter is a parameter that needs to be adopted in the process of determining the terminal position information by the network device.

In some embodiments, the network device determines a distance of the network device from the terminal according to Round Trip Times (RTTs) of the first signal and the second signal, thereby determining the terminal location information.

In some embodiments, the location information of the terminal includes one of:

The geographic location of the terminal;

the relative position of the terminal with respect to the network device;

the distance between the terminal and the network equipment;

the orientation of the terminal with respect to the network device.

In some embodiments, transmitting the first signal from the network device to receiving the second signal may be referred to as a round trip. The network device may determine a distance of the network device from the terminal according to Round Trip Times (RTTs) of the first signal and the second signal.

In some embodiments, the network device may determine a distance between the network device and the terminal according to Round Trip Times (RTTs) of the first signal and the second signal, and determine a relative position between the network device and the terminal according to an angle of arrival (Angles of Arrival, AOA) of the second signal, thereby determining a position of the terminal.

In some embodiments, the first signal may include a positioning reference signal (Positioning Reference Signal, PRS). PRS are sent by a network device to a terminal for use by the terminal in making measurements associated with positioning of the terminal.

In some embodiments, the second signal may include a sounding reference signal (Sounding Reference Signal, SRS). The SRS is transmitted by the terminal to the network for the network device to make measurements associated with the positioning of the terminal.

In some embodiments, the positioning parameters include parameters determined by the terminal during RTT measurements.

In some embodiments, the positioning parameters include parameters that the terminal determines during RTT measurements and sends to the network device.

In some embodiments, the positioning parameters include at least one of: TA; TA drift amount; the receiving and transmitting time difference Rx-Tx time difference.

In some embodiments, the second information is used to indicate a TA drift rate. TA drift rate is used to indicate: average rate of change of TA over a predetermined period of time.

In some embodiments, the timestamp may be represented in absolute time. For example, the timestamp may be represented in coordinated universal time (Universal Time Coordinated, UTC) time.

In some embodiments, the time stamp may be represented in logical time. The logic time includes one of the following: the logical time units may include one of: time slots; a sub-frame; a radio frame.

For example, the time stamp may be represented by a slot number or a radio frame number.

In some embodiments, the terminal rx_ Tx time difference can determine the TA. For example, terminal rx_ Tx time difference may determine TA in conjunction with base station rx_ Tx time difference.

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 the second information.

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 other information 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 the terminal measurement report.

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

Step S2202: the network device determines a TA drift amount.

In some embodiments, the network device determines the TA drift amount from the TA drift rate, the first timestamp and the second timestamp as shown in fig. 2 d.

In some embodiments, the TA drift rate is the drift rate of the TA for the duration of the interval between the terminal receiving the first signal and the terminal transmitting the second signal. The TA drift amount is the drift amount of TA in the interval duration between the terminal receiving the first signal and the terminal transmitting the second signal.

In some embodiments, the network device determines an interval duration between the terminal receiving the first signal and transmitting the second signal according to the first timestamp and the second timestamp, and determines an amount of TA drift of the terminal within the interval duration according to the interval duration and the TA drift rate.

Step S2203: the network device determines location information of the terminal.

In some embodiments, the network device determines the location information of the terminal based on at least one of: a first timestamp of the first signal, a second timestamp of the second signal, TA drift, rx_ Tx time difference.

In some embodiments, the rx_ Tx time difference that the network device receives the terminal transmission may be the terminal measured rx_ Tx time difference.

In some embodiments, the network device may compensate for the time associated with the first signal and/or the time associated with the second signal based on the TA drift amount. The time associated with the first signal includes at least one of a transmission time of the first signal and a reception time of the first signal. The time associated with the second signal includes at least one of a transmission time of the second signal and a reception time of the second signal.

Illustratively, the network device transmitting the first signal to the receiving terminal transmitting the second signal may be referred to as a round trip. The network device may determine a distance of the network device from the terminal based on round trip times of the first signal and the second signal. And further determining location information of the terminal. For example, the network device may determine a distance of the network device from the terminal based on the time of flight of the first signal and the time of flight of the second signal.

In some embodiments, the network device may determine the distance between the network device and the terminal at a plurality of measurement moments, as shown in fig. 1d, and thus determine the location information.

The information transmission method according to the embodiment of the present disclosure may include at least one of step S2201 to step S2203. For example, step S2201 may be implemented as a separate embodiment, step S2202 may be implemented as a separate embodiment, step S2203 may be implemented as a separate embodiment, and steps S2201 to S2203 may be implemented as a separate embodiment. But is not limited thereto.

The embodiment of the disclosure shows an interaction schematic diagram of an information transmission method. As shown in fig. 2e, an embodiment of the present disclosure relates to an information transmission method for a communication system 100, the method comprising:

step S2301: the terminal determines the TA drift amount.

In some embodiments, the terminal determines the amount of TA drift based on the terminal position change.

In some embodiments, as shown in fig. 2d, the terminal may determine the amount of TA drift based on the change in terminal position over the duration of the interval of the first and second time stamps.

In some embodiments, the terminal determines a change in the position of the terminal within the interval duration of the first timestamp and the second timestamp based on the GNSS.

In some embodiments, the first timestamp indicates a time at which the first signal was received by the terminal, and the second timestamp indicates a time at which the second signal was transmitted by the terminal.

In some embodiments, the TA drift amount is positively correlated with the amount of terminal position change during the interval of the first and second time stamps. For example, the larger the terminal displacement amount, the larger the TA drift amount within the interval duration of the first time stamp and the second time stamp.

In some embodiments, the location information of the terminal includes one of:

the geographic location of the terminal;

the relative position of the terminal with respect to the network device;

the distance between the terminal and the network equipment;

the orientation of the terminal with respect to the network device.

Step S2302: the terminal transmits the second information.

In some embodiments, a network device may include: network functions in the core network device. For example, the network device may be a location management function (Location Management Function, LMF) in a core network device.

In some embodiments, the second information is used to indicate a receive transmit time difference Rx-Tx time difference that compensates for the TA drift amount.

In some embodiments, the terminal may measure Rx_ Tx time difference in the RTT measurement and compensate for the TA drift amount, resulting in Rx-Tx time difference compensating for the TA drift amount.

Step S2303: the network device determines location information of the terminal.

In some embodiments, the network device determines the location information of the terminal based on at least one of: first timestamp of the first signal, second timestamp of the second signal, TA, rx_ Tx time difference. Here, rx_ Tx time difference may be a reception-transmission time difference Rx-Tx time difference that compensates for the TA drift amount.

The information transmission method according to the embodiment of the present disclosure may include at least one of step S2301 to step S2302. For example, step S2301 may be implemented as a stand-alone embodiment, step S2302 may be implemented as a stand-alone embodiment, and steps S2301 through S2302 may be implemented as stand-alone embodiments. But is not limited thereto.

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

Fig. 3a is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 3a, an embodiment of the present disclosure relates to an information transmission method, performed by a terminal 101, the method comprising:

step S3101: first information is acquired.

In some embodiments, the optional implementation of step S3101 may refer to the optional implementation of step S2101 of fig. 2a, and other relevant parts in the embodiment related to fig. 2a, which are not described herein.

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 subjects.

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

In some embodiments, the terminal acquires the first information from an upper layer(s).

In some embodiments, the terminal processes to obtain the first information.

In some embodiments, step S3102 is omitted, and the terminal autonomously implements the function indicated by the first information, or the above-mentioned function is default or default.

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

Step S3102: a second signal is transmitted.

In some embodiments, the optional implementation of step S3102 may refer to the optional implementation of step S2102 in fig. 2a, and other relevant parts in the embodiment related to fig. 2a, which are not described herein.

The information transmission method according to the embodiment of the present disclosure may include at least one of step S3101 to step S3102. For example, step S3101 may be implemented as a separate embodiment, step S3102 may be implemented as a separate embodiment, and steps S3101 through S3102 may be implemented as a separate embodiment. But is not limited thereto.

Fig. 3b is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 3b, an embodiment of the present disclosure relates to an information transmission method, performed by a terminal 101, the method comprising:

step S3201: and sending the second information.

In some embodiments, the optional implementation of step S3201 may refer to the optional implementation of step S2201 in fig. 2c, and other relevant parts in the embodiment related to fig. 2c, which are not described herein.

Fig. 3c is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 3c, an embodiment of the present disclosure relates to an information transmission method, which is performed by a terminal 101, the method comprising:

Step S3301: the TA drift amount is determined.

In some embodiments, the optional implementation of step S3301 may refer to the optional implementation of step S2301 in fig. 2e, and other relevant parts in the embodiment related to fig. 2c, which are not described herein.

Step S3302: and sending the second information.

In some embodiments, the optional implementation of step S3302 may refer to the optional implementation of step S2302 in fig. 2e, and other relevant parts in the embodiment related to fig. 2e, which are not described herein.

The information transmission method according to the embodiment of the present disclosure may include at least one of step S3301 to step S3302. For example, step S3301 may be implemented as a separate embodiment, step S3302 may be implemented as a separate embodiment, and steps S3301 through S3302 may be implemented as a separate embodiment. But is not limited thereto.

Fig. 3d is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 3d, an embodiment of the present disclosure relates to an information transmission method, which is performed by a terminal 101, the method including:

Step S3401: the second signal is transmitted for a first period of time.

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

In some embodiments, the method further comprises:

transmitting the second signal within the first time period according to a time domain resource configuration of the second signal, wherein the time domain resource configuration comprises at least one of the following:

transmitting a time domain position of the second signal;

the time domain position at which the second signal is transmitted is offset from the time domain position at which the first signal is received by the terminal.

In some embodiments, the method further comprises:

and receiving first information which is sent by the network equipment and indicates the time domain resource configuration.

In some embodiments, the amount of TA drift in the first time period is less than the first value.

In some embodiments, the first duration is network device configured; or,

the first time period is specified by the communication protocol.

Fig. 3e is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 3e, an embodiment of the present disclosure relates to an information transmission method, which is performed by a terminal 101, the method including:

Step S3501: and sending the second information.

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 location information of the terminal.

In some embodiments, the second information is used to indicate a TA drift rate, the TA drift rate, for the network device to determine the amount of TA drift in combination with the first timestamp and the second timestamp.

In some embodiments, the first timestamp is used to indicate a time at which the first signal was received by the terminal;

the second timestamp is used for indicating the moment when the terminal transmits the second signal;

In some embodiments, the method further comprises:

determining a position change of the terminal based on a Global Navigation Satellite System (GNSS);

Fig. 4a is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 4a, an embodiment of the present disclosure relates to a method for information transmission, performed by a network device 102, the method comprising:

Step S4101: and sending the first information.

In some embodiments, the optional implementation of step S4101 may be referred to as an optional implementation of step S2101 in fig. 2a, and other relevant parts in the embodiment related to fig. 2a, which are not described herein.

In some embodiments, the network device 102 transmits the first information to the terminal 101, but is not limited thereto, and the first information may also be transmitted to other subjects.

Optionally, the first information is used to indicate a time domain resource configuration of the second signal. Alternative implementations may be referred to other relevant parts of the embodiment related to fig. 2a, and will not be described here.

Fig. 4b is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 4b, an embodiment of the present disclosure relates to an information transmission method, performed by a network device 102, the method comprising:

step S4201: second information is acquired.

In some embodiments, the optional implementation of step S4201 may refer to the optional implementation of step S2201 of fig. 2c, and other relevant parts in the embodiment related to fig. 2c, which are not described herein.

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 subjects.

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

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

In some embodiments, the network device processes to obtain the second information.

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

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

Step S4202: the TA drift amount is determined.

In some embodiments, the optional implementation of step S4202 may refer to the optional implementation of step S2202 of fig. 2c, and other relevant parts in the embodiment related to fig. 2c, which are not described herein.

Step S4203: position information of the terminal is determined.

In some embodiments, the optional implementation of step S4203 may refer to the optional implementation of step S2203 of fig. 2c, and other relevant parts in the embodiment related to fig. 2c, which are not described herein.

The information transmission method according to the embodiment of the present disclosure may include at least one of step S4201 to step S4203. For example, step S4201 may be implemented as a separate embodiment, step S4202 may be implemented as a separate embodiment, step S4203 may be implemented as a separate embodiment, and steps S4201 through S4203 may be implemented as a separate embodiment. But is not limited thereto.

Fig. 4c is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 4c, an embodiment of the present disclosure relates to an information transmission method, performed by a network device 102, the method comprising:

step S4301: second information is acquired.

In some embodiments, the optional implementation of step S4301 may refer to the optional implementation of step S2201 in fig. 2e, and other relevant parts in the embodiment related to fig. 2e, which are not described herein.

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 subjects.

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

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

Step S4302: determining location information of a terminal

In some embodiments, the optional implementation of step S4302 may refer to the optional implementation of step S2303 in fig. 2e, and other relevant parts in the embodiment related to fig. 2e, which are not described herein.

The information transmission method according to the embodiment of the present disclosure may include at least one of step S4301 to step S4302. For example, step S4301 may be implemented as a stand-alone embodiment, step S4302 may be implemented as a stand-alone embodiment, and steps S4301 through step S4302 may be implemented as stand-alone embodiments. But is not limited thereto.

Fig. 4d is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 4d, an embodiment of the present disclosure relates to an information transmission method, performed by a network device 102, the method comprising:

Step S4401: and sending the first information.

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

In some embodiments, the time domain resource configuration comprises at least one of:

transmitting a time domain position of the second signal;

In some embodiments, the first duration is network device configured; or,

the first time period is specified by the communication protocol.

Fig. 4e is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 4e, an embodiment of the present disclosure relates to an information transmission method, performed by a network device 102, the method comprising:

step S4501: second information is received.

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 location information of the terminal.

the method further comprises the steps of: and determining the TA drift amount according to the TA drift rate, the first time stamp and the second time stamp.

With reference to some embodiments of the fourth aspect, in some embodiments, the method further comprises:

the first timestamp is used for indicating the moment when the terminal receives the first signal;

With reference to 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 that compensates for the TA drift amount.

With reference to some embodiments of the fourth aspect, in some embodiments, the TA drift amount is determined by the terminal based on a change in a terminal position determined by the global navigation satellite system GNSS.

Fig. 5 is an interactive schematic diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 5, an embodiment of the present disclosure relates to an information transmission method for a communication system 100, the method comprising one of the following steps:

step S5101: the terminal transmits a second signal within a first duration after receiving the first signal transmitted by the network device.

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

Alternative implementations of step S5101 may refer to step S2101 of fig. 2a, step S3102 of fig. 3a, and other relevant parts in the embodiments related to fig. 2a, fig. 3d, fig. 4a, fig. 4d, which are not described herein.

Fig. 6 is an interactive schematic diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in fig. 6, an embodiment of the present disclosure relates to an information transmission method for a communication system 100, the method comprising one of the following steps:

step S6101: the terminal sends the second information to the network device.

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

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

Alternative implementations of step S6101 may refer to step S2201 of fig. 2c, step S2301 of fig. 2e, step S3201 of fig. 3b, step S3302 of fig. 3c, step S4201 of fig. 4b, step S4301 of fig. 4c, and other relevant parts of the embodiments related to fig. 2c, 2e, 3b, 3e, 3c, 4b, 4c, and 4e, which will not be described here.

A specific example is provided below in connection with any of the embodiments described above:

Mode 1

As shown in fig. 2b, the time domain position of the terminal side receiving PRS and the time domain position of the transmitted SRS are restricted to be within a predefined time window (first duration).

-the terminal receives configuration information sent by the base station to determine the offset value of the SRS.

And the o terminal determines the time domain position of the SRS based on the time domain position of the PRS and the determined offset value.

The o or terminal directly acquires the time domain position of the SRS.

The terminal acquires the SRS configuration based on a predefined manner.

The length of the predefined time window is predefined or preconfigured.

After receiving the PRS, the terminal needs to transmit SRS within a predefined time window.

Mode 2

As shown in fig. 2d, the terminal reports the TA drift rate (drift rate).

The TA drift rate is acquired by the terminal based on GNSS measurements.

The LMF calculates the location information of the terminal based on the TA drift rate and the value of tx_ Rx time difference reported from the terminal side.

-LMF determining TA variation based on information of PRS time stamp (time stamp) and SRS time stamp, and the TA drift rate.

Mode 3

The terminal reports the receive transmit time difference (rx_ Tx time difference).

-the reported value (i.e. rx_ Tx time difference) contains a compensation value for the amount of TA drift (drift).

The reporting information contains the timestamp of the target SRS and the timestamp of the target PRS.

-the LMF determining location information of the terminal based on the reported information.

The embodiments of the present disclosure also provide an apparatus for implementing any of the above methods, for example, an apparatus is provided, where the apparatus includes a unit or a module for implementing each step performed by the terminal in any of the above methods. For another example, another apparatus is also proposed, which includes a unit or module configured to implement steps 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.

It should be understood that the division of each unit or module in the above apparatus is merely a division of a logic function, and may be fully or partially integrated into one physical entity or may be physically separated when actually implemented. Furthermore, units or modules in the apparatus may be implemented in the form of processor-invoked software: the device comprises, for example, a processor, the processor being connected to a memory, the memory having instructions stored therein, the processor invoking the instructions stored in the memory to perform any of the methods or to perform the functions of the units or modules of the device, wherein the processor is, for example, a general purpose processor, such as a central processing unit (Central Processing Unit, CPU) or microprocessor, and the memory is internal to the device or external to the device. Alternatively, the units or modules in the apparatus may be implemented in the form of hardware circuits, and part or all of the functions of the units or modules may be implemented by designing hardware circuits, which may be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the units or modules are implemented by designing the logic relationships of elements in the circuit; for another example, in another implementation, the above hardware circuit may be implemented by a programmable logic device (programmable logic device, PLD), for example, a field programmable gate array (Field Programmable Gate Array, FPGA), which may include a large number of logic gates, and the connection relationship between the logic gates is configured by a configuration file, so as to implement the functions of some or all of the above units or modules. All units or modules of the above device may be realized in the form of invoking software by a processor, or in the form of hardware circuits, or in part in the form of invoking software by a processor, and in the rest in the form of hardware circuits.

In the disclosed embodiments, the processor is a circuit with signal processing capabilities, and in one implementation, the processor may be a circuit with instruction reading and running capabilities, such as a central processing unit (Central Processing Unit, CPU), microprocessor, graphics processor (graphics processing unit, GPU) (which may be understood as a microprocessor), or digital signal processor (digital signal processor, DSP), etc.; in another implementation, the processor may implement a function through a logical relationship of hardware circuits that are fixed or reconfigurable, e.g., a hardware circuit implemented as an application-specific integrated circuit (ASIC) or a programmable logic device (programmable logic device, PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads the configuration document, and the process of implementing the configuration of the hardware circuit may be understood as a process of loading instructions by the processor to implement the functions of some or all of the above units or modules. Furthermore, hardware circuits designed for artificial intelligence may be used, which may be understood as ASICs, such as neural network processing units (Neural Network Processing Unit, NPU), tensor processing units (Tensor Processing Unit, TPU), deep learning processing units (Deep learning Processing Unit, DPU), etc.

Fig. 7a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. As shown in fig. 7a, the terminal 7100 may include: a transceiver module 7101. In some embodiments, the transceiver module 7101 is configured to send a second signal within a first duration after receiving a first signal sent by a network device, where the first signal and the second signal are used to determine location information of the terminal. Optionally, at least one of the communication steps (e.g., step S2101, step S2102, but not limited thereto) of the sending module for performing sending and/or receiving performed by the terminal 101 in any of the above methods is not described herein.

Fig. 7b is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. As shown in fig. 7b, the terminal 7200 may include: transceiver module 7201. In some embodiments, the transceiver module 7201 is configured to send second information to the network device, where the second information is used to determine a positioning parameter associated with TA drift, where the positioning parameter is used to determine location information of the terminal. Optionally, at least one of the communication steps (e.g., step S2201, step S2302, but not limited thereto) of the sending module for performing sending and/or receiving performed by the terminal 101 in any of the above methods is not described herein. Optionally, the terminal 7200 may further include a processing module for performing at least one of the communication steps (e.g., step S2301 but not limited thereto) performed by the terminal 101 in any of the above methods, which is not described herein.

Fig. 7c is a schematic structural diagram of a network device according to an embodiment of the present disclosure. As shown in fig. 7c, network device 7300 may include: transceiver module 7301. In some embodiments, the transceiver module 7301 is configured to send first information to a terminal, where the first information is used to indicate a time domain resource configuration of a second signal, where a time domain location of the second information is located in a first time period after the first signal sent by the network device, where the first signal and the second signal are used to determine location information of the terminal. Optionally, the transceiver module is configured to perform the communication steps (e.g., step S2101, step S2102, but not limited to the foregoing steps) of transmission and/or reception performed by the network device 102 in any of the foregoing methods, which are not described herein.

Fig. 7d is a schematic structural diagram of a network device according to an embodiment of the present disclosure. As shown in fig. 7d, the network device 7400 may include: a transceiver module 7401. In some embodiments, the transceiver module 7401 is configured to receive second information sent by a terminal, where the second information is used to determine a positioning parameter associated with TA drift, where the positioning parameter is used to determine location information of the terminal. Optionally, the transceiver module is configured to perform the communication steps (e.g., step S2201, step S2301, but not limited thereto) such as the sending and/or receiving performed by the network device 102 in any of the above methods, which are not described herein. Optionally, the network device 7400 may further include a processing module, where the processing module is configured to perform at least one of the communication steps (such as, but not limited to, step S2202, step S2203, and step S2303) performed by the network device 102 in any of the above methods, which is not described herein.

Fig. 8a is a schematic structural diagram of a communication device 8100 according to an embodiment of the present disclosure. The communication device 8100 may be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, etc.), a chip system, a processor, etc. that supports the network device to implement any of the above methods, or a chip, a chip system, a processor, etc. that supports the terminal to implement any of the above methods. The communication device 8100 may be used to implement the method described in the above method embodiments, and reference may be made in particular to the description of the above method embodiments.

As shown in fig. 8a, communication device 8100 includes one or more processors 8101. The processor 8101 may be a general-purpose processor or a special-purpose processor, etc., and may be, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process data for the programs. Optionally, the communication device 8100 is configured to perform any of the above methods. Optionally, the one or more processors 8101 are configured to invoke instructions to cause the communication device 8100 to perform any of the above methods.

In some embodiments, communication device 8100 also 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 (e.g., but not limited to, step S2101, step S2102, step S2201, step S2301) such as transmission and/or reception in the above-described method, and the processor 8101 performs at least one of the other steps. In alternative embodiments, the transceiver may include a receiver and/or a transmitter, which may be separate or integrated. Alternatively, terms such as transceiver, transceiver unit, transceiver circuit, interface, etc. may be replaced with each other, terms such as transmitter, transmitter unit, transmitter circuit, etc. may be replaced with each other, and terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

In some embodiments, communication device 8100 also includes one or more memories 8103 for storing data. Alternatively, all or part of memory 8103 may be external to communication device 8100. In alternative embodiments, communication device 8100 may include one or more interface circuits 8104. Optionally, an interface circuit 8104 is coupled to the memory 8102, the interface circuit 8104 being operable to receive data from the memory 8102 or other device, and being operable to transmit data to the memory 8102 or other device. For example, the interface circuit 8104 may read data stored in the memory 8102 and transmit the data to the processor 8101.

The communication device 8100 in the above embodiment description 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. 8 a. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be: 1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem; (2) A set of one or more ICs, optionally including storage means for storing data, programs; (3) an ASIC, such as a Modem (Modem); (4) modules that may be embedded within other devices; (5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like; (6) others, and so on.

Fig. 8b is a schematic structural diagram of a chip 8200 according to an embodiment of the disclosure. For the case where the communication device 8100 may be a chip or a chip system, reference may be made to a schematic structural diagram of the chip 8200 shown in fig. 8b, but is not limited thereto.

The chip 8200 includes one or more processors 8201. The chip 8200 is used to perform any of the above methods.

In some embodiments, the chip 8200 further comprises one or more interface circuits 8202. Alternatively, the terms interface circuit, interface, transceiver pin, etc. may be interchanged. In some embodiments, the chip 8200 further comprises one or more memories 8203 for storing data. Alternatively, all or part of the memory 8203 may be external to the chip 8200. Optionally, an interface circuit 8202 is coupled to the memory 8203, the interface circuit 8202 may be used to receive data from the memory 8203 or other device, and the interface circuit 8202 may be used to transmit data to the memory 8203 or other device. For example, the interface circuit 8202 may read data stored in the memory 8203 and send the data to the processor 8201.

In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., step S2101, step S2102, step S2201, step S2301, but not limited thereto) of sending and/or receiving in the above-described methods. The interface circuit 8202 performs the communication steps such as transmission and/or reception in the above-described method, for example, by: the interface circuit 8202 performs data interaction between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps.

The present disclosure also proposes a storage medium having stored thereon instructions that, when executed on a communication device 8100, cause the communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Alternatively, the storage medium described above is a computer-readable storage medium, but is not limited thereto, and it may be a storage medium readable by other devices. Alternatively, the above-described storage medium may be a non-transitory (non-transitory) storage medium, but is not limited thereto, and it may also be a transitory storage medium.

The present disclosure also proposes a program product which, when executed by a communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the above-described program product is a computer program product.

The present disclosure also proposes a computer program which, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. An information transmission method, wherein the method is performed by a terminal, the method comprising:

2. The method of claim 1, wherein the method further comprises:

transmitting a time domain position of the second signal;

3. The method of claim 2, wherein the method further comprises:

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

5. A method according to any one of claim 1 to 3, wherein,

the first duration is configured by the network device; or,

the first time period is specified by a communication protocol.

6. An information transmission method, wherein the method is performed by a network device, the method comprising:

7. The method of claim 6, wherein the time domain resource configuration comprises at least one of:

transmitting a time domain position of the second signal;

8. The method of claim 6 or 7, wherein the amount of TA drift in 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 time period is specified by a communication protocol.

10. An information transmission method, wherein the method is performed by a terminal, the method comprising:

and sending second information to the network equipment, wherein the second information is used for determining a positioning parameter associated with Timing Advance (TA) drift, and the positioning parameter is used for determining the position information of the terminal.

11. The method of claim 10, wherein,

the second information is used for indicating a TA drift rate, and the TA drift rate is used for determining the TA drift amount by the network equipment in combination with a first timestamp and a second timestamp.

12. The method of claim 11, wherein,

13. The method of claim 10, wherein the second information is used to indicate a receive transmit time difference, rx-Tx time difference, that compensates for the TA drift amount.

14. The method of claim 13, wherein the method further comprises:

15. An information transmission method, wherein the method is performed by a network device, the method comprising:

16. The method of claim 15, wherein,

the second information is used for indicating a TA drift rate;

17. The method of claim 16, wherein the method further comprises:

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

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

20. An information transmission method, wherein the method is performed by a communication system, the method comprising:

21. An information transmission method, wherein the method is performed by a communication system, the method comprising:

22. A terminal, wherein the terminal comprises:

and the receiving and transmitting module is configured to transmit a second signal in a first duration after receiving a first signal transmitted by the network equipment, wherein the first signal and the second signal are used for determining the position information of the terminal.

23. A network device, wherein the network device comprises:

and the receiving and transmitting module is configured to send first information to a terminal, wherein the first information is used for indicating time domain resource configuration of a second signal, the time domain position of the second information is located in a first time length after the first signal is sent by the network equipment, and the first signal and the second signal are used for determining position information of the terminal.

24. A terminal, wherein the terminal comprises:

and a transceiver module configured to send second information to the network device, wherein the second information is used for determining a positioning parameter associated with Timing Advance (TA) drift, and the positioning parameter is used for determining position information of the terminal.

25. A network device, wherein the network device comprises:

and the receiving and transmitting module is configured to receive second information sent by the terminal, wherein the second information is used for determining a positioning parameter related to TA drift, and the positioning parameter is used for determining the position information of the terminal.

26. A communication system, wherein the information transmission system comprises a terminal and a network device, wherein,

the terminal being configured to implement the information transmission method of any one of claims 1 to 5 and claims 10 to 14,

the network device is configured to implement the information transmission method of any one of claims 6 to 9, 15 to 19.

27. A communication device, wherein the communication device comprises:

one or more processors;

wherein the processor is configured to invoke instructions to cause the communication device to perform the information transmission method of any of claims 1 to 5, claims 10 to 14, claims 6 to 9, and claims 15 to 19.

28. A storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the information transmission method of any one of claims 1 to 5, 10 to 14, 6 to 9, 15 to 19.