Method and device used in node for wireless communication

Abstract

The present application discloses a method and device used in a node for wireless communication. A node receives a first information block, the first information block indicating ephemeris information; and the node sends a first signal, wherein it is assumed that the position of the node keeps unchanged after a change in a positioning state, the timing of the first signal depends on the ephemeris information and the position of the node, and the change in the positioning state comprises at least one of the node losing a positioning capability, the node re-obtaining the positioning capability, and a change in positioning accuracy of the node. The present application improves synchronization accuracy.

Description

A method and apparatus for a node used in wireless communication Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to timing design schemes and apparatus in wireless communication. Background Technology

[0002] The application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios place different performance requirements on the system. To meet the diverse performance needs of various application scenarios, research on New Radio (NR) (or 5G) was initiated at the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting. With the widespread application of 5G, new business models and application scenarios are constantly emerging, and the existing 5G standard cannot fully meet the new demands. Therefore, 3GPP is preparing to begin preliminary research on 6G.

[0003] With the diversification of application scenarios and the emergence of new business models, the demand for ubiquitous coverage is increasing day by day. Therefore, 6G needs to explore wireless transmission methods that can guarantee coverage. Summary of the Invention

[0004] The 5G NR system initiated the WI (work item) standardization work based on NTN (non-terrestrial network) with Rel-17. According to the applicant's research, NTN will also be an important component of 6G. In NTN, User Equipment (UE) communicates via satellite or aircraft. Because the distance from the satellite or aircraft to the UE is much greater than the distance from the base station to the UE in TN (terrestrial networks), this results in a longer propagation delay during communication between the satellite / aircraft and the UE. When a satellite is used as a relay device for a ground station, the delay of the feeder link between the satellite and the ground station further increases the propagation delay between the UE and the base station. Furthermore, because the coverage area of ​​satellites and aircraft is much larger than that of terrestrial networks, and because the tilt angles between ground equipment and satellites / aircraft vary, the differences in delay within NTN are very large. In existing 5G NR NTNs, user equipment (UEs) pre-compensates uplink transmission timing based on satellite or spacecraft ephemeris information and the UE's own real-time location. The UE's real-time location is obtained via GNSS, ensuring uplink synchronization even with significant latency differences (or latency spreads), such as milliseconds or even tens of milliseconds. Therefore, in 5G NR NTNs, UEs need stable and continuous positioning capabilities. However, in 6G networks, the applicant's research indicates that due to the diversity of UE forms (e.g., some mobile terminals support certain positioning methods while others do not, and some UEs are non-mobile terminals) and the instability of positioning functions (e.g., GNSS-based positioning signals may be unstable), new designs are needed to ensure uplink synchronization in networks with large latency differences.

[0005] This application discloses a solution to the uplink transmission synchronization problem when a node's positioning status changes. It should be noted that NTN is only used as a typical application scenario or example in the description of this application; this application is also applicable to 6G networks or other scenarios facing similar problems in the future (e.g., scenarios with significant transmission latency differences, or other scenarios with large coverage areas, such as scenarios with particularly large cell radii, rural coverage scenarios, or maritime coverage scenarios). For different application scenarios, such as eMBB, URLLC, full-duplex networks, IoT, sensor networks, integrated sensing networks, smart metasurfaces, and terahertz networks, V2X can also achieve similar technical effects. Furthermore, using a unified solution for different scenarios (including but not limited to eMBB, URLLC, full-duplex networks, IoT, sensor networks, integrated sensing networks, smart metasurfaces, terahertz networks, and V2X scenarios) or different application parameters helps reduce hardware complexity and cost. Where there is no conflict, the embodiments and features used in the first node of this application can be applied to the embodiments used in the second node of this application, and vice versa.

[0006] This application discloses a method for a first node in wireless communication, characterized by comprising:

[0007] Receive the first information block, which indicates ephemeris information;

[0008] Send the first signal;

[0009] Wherein, the first node is assumed to remain in its position after the positioning status changes, and the timing of the first signal depends on the ephemeris information and the position of the first node; the positioning status change includes at least one of the following three: the first node loses its positioning capability, the first node regains its positioning capability, and the positioning accuracy of the first node changes.

[0010] It should be noted that receiving (or sending) the first information block and sending (or receiving) the first signal are common expressions in the art, respectively meaning receiving (or sending) the content in the first information block, and sending (or receiving) or sending (or receiving) information (e.g., modulation symbols, bits) on the first signal; the above expressions are beneficial for maintaining consistency with the general expressions in the art.

[0011] As an example, by assuming that the position remains unchanged after the positioning state changes, the inconsistency between the network's calculation of timing advance and the user equipment's understanding of the received Timing Advance Command (TAC) caused by the ambiguity of the position is avoided. This improves the uplink transmission reception performance after the positioning state changes (e.g., the first signal when the first signal is transmitted after the positioning state changes), while reducing the possibility of collisions caused by timing inconsistencies.

[0012] According to one aspect of this application, the method is characterized in that the first signal carries a first report, the first report indicating the positioning status of the first node in advance at a certain time, and the transmission of the first report is event-triggered.

[0013] According to one aspect of this application, the above method is characterized in that, after the location state changes, the first node assumes that the position of the first node is the same as the latest valid position of the first node before the location state changes.

[0014] According to one aspect of this application, the above method is characterized by comprising:

[0015] Receive the second information block;

[0016] The second information block indicates a first timing advance, the timing of the first signal depends on the first timing advance and a second timing advance, and the second timing advance depends on the ephemeris information and the position of the first node.

[0017] According to one aspect of this application, the method is characterized in that the first signal carries a first marker indicating that the first signal carries a timing advance domain following the change in the positioning state of the first node.

[0018] According to one aspect of this application, the above method is characterized in that the first information block indicates a third timing advance, the timing of the first signal depends on the third timing advance, and the third timing advance is time-varying.

[0019] According to one aspect of this application, the above method is characterized by comprising:

[0020] Send the first random access preamble;

[0021] Wherein, the first random access preamble belongs to the target random access preamble group, and the target random access preamble group is a random access preamble group associated with timing precompensation among multiple random access preamble groups.

[0022] This application discloses a method for a second node in wireless communication, characterized by comprising:

[0023] Send the first information block, which indicates ephemeris information;

[0024] Receive the first signal;

[0025] Wherein, the sender of the first signal is assumed to remain at the same position after the positioning status changes, and the timing of the first signal depends on the ephemeris information and the position of the sender of the first signal; the positioning status change includes at least one of the following three: the sender of the first signal loses positioning capability, the sender of the first signal regains positioning capability, and the positioning accuracy of the sender of the first signal changes.

[0026] According to one aspect of this application, the method is characterized in that the first signal carries a first report, the first report being a timed advance indication of the location status of the sender of the first signal, and the transmission of the first report being event-triggered.

[0027] According to one aspect of this application, the method is characterized in that, after the change in the positioning state, the sender of the first signal assumes that the position of the sender of the first signal is the same as the latest valid position of the sender of the first signal before the change in the positioning state.

[0028] According to one aspect of this application, the above method is characterized by comprising:

[0029] Send the second information block;

[0030] The second information block indicates a first timing advance, the timing of the first signal depends on the first timing advance and a second timing advance, the second timing advance depends on the ephemeris information and the location of the sender of the first signal.

[0031] According to one aspect of this application, the method is characterized in that the first signal carries a first marker indicating that the first signal carries a timing advance domain following the change in the positioning state of the sender of the first signal.

[0032] According to one aspect of this application, the above method is characterized in that the first information block indicates a third timing advance, the timing of the first signal depends on the third timing advance, and the third timing advance is time-varying.

[0033] According to one aspect of this application, the above method is characterized by comprising:

[0034] Receive the first random access preamble;

[0035] Wherein, the first random access preamble belongs to the target random access preamble group, and the target random access preamble group is a random access preamble group associated with timing precompensation among multiple random access preamble groups.

[0036] This application discloses a first node for wireless communication, characterized in that it comprises:

[0037] A first receiver receives a first information block, which indicates ephemeris information.

[0038] The first transmitter sends the first signal;

[0039] Wherein, the first node is assumed to remain in its position after the positioning status changes, and the timing of the first signal depends on the ephemeris information and the position of the first node; the positioning status change includes at least one of the following three: the first node loses its positioning capability, the first node regains its positioning capability, and the positioning accuracy of the first node changes.

[0040] This application discloses a second node for wireless communication, characterized in that it comprises:

[0041] The second transmitter sends a first information block, which indicates ephemeris information.

[0042] The second receiver receives the first signal;

[0043] Wherein, the sender of the first signal is assumed to remain at the same position after the positioning status changes, and the timing of the first signal depends on the ephemeris information and the position of the sender of the first signal; the positioning status change includes at least one of the following three: the sender of the first signal loses positioning capability, the sender of the first signal regains positioning capability, and the positioning accuracy of the sender of the first signal changes. Attached Figure Description

[0044] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0045] Figure 1 shows a flowchart of a first information block and a first signal according to an embodiment of this application;

[0046] Figure 2 shows a schematic diagram of a network architecture according to an embodiment of this application;

[0047] Figure 3 illustrates a schematic diagram of the wireless protocol architecture of the user plane and control plane according to an embodiment of this application;

[0048] Figure 4 shows a schematic diagram of a first node and a second node according to an embodiment of this application;

[0049] Figure 5 shows a flowchart of wireless signal transmission according to an embodiment of this application;

[0050] Figure 6 shows a schematic diagram of a first report according to an embodiment of this application;

[0051] Figure 7 shows a schematic diagram of the position of the first node according to an embodiment of this application;

[0052] Figure 8 shows a schematic diagram of a second timing advance according to an embodiment of this application;

[0053] Figure 9 shows a schematic diagram of a first mark according to an embodiment of this application;

[0054] Figure 10 shows a schematic diagram of a third timing advance according to an embodiment of this application;

[0055] Figure 11 shows a schematic diagram of a target random access preamble group according to an embodiment of this application;

[0056] Figure 12 shows a structural block diagram of a processing apparatus in a first node according to an embodiment of the present application;

[0057] Figure 13 shows a structural block diagram of the processing apparatus in a second node according to an embodiment of this application; Detailed Implementation

[0058] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0059] Example 1

[0060] Example 1 illustrates a flowchart 100 of a first information block and a first signal according to an embodiment of this application, as shown in Figure 1. In Figure 1, each block represents a step, and it is particularly important to emphasize that the order of the blocks in the figure does not restrict the temporal sequence of the represented steps.

[0061] In Embodiment 1, the first node in this application receives a first information block in step 101, the first information block indicating ephemeris information; the first node in this application sends a first signal in step 102; wherein, the first node is assumed to remain at the same position after the positioning state changes, and the timing of the first signal depends on the ephemeris information and the position of the first node; the positioning state change includes at least one of the following three: the first node loses positioning capability, the first node regains positioning capability, and the positioning accuracy of the first node changes.

[0062] As an example, the first node is in the RRC connected state (RRC_CONNECTED).

[0063] As an example, the first node is in an RRC inactive state (RRC_INACTIVE).

[0064] As one embodiment, the first information block is transmitted via an air interface or a wireless interface.

[0065] As one embodiment, the first information block includes all or part of a higher-layer signaling or a physical-layer signaling.

[0066] As one embodiment, the first information block includes all or part of an RRC (Radio Resource Control) layer signaling, or the first information block includes all or part of a MAC (Medium Access Control) layer signaling.

[0067] As one example, the first information block is cell-specific.

[0068] As one embodiment, the first information block is UE-specific.

[0069] As one embodiment, the first information block is UE group specific.

[0070] As one embodiment, the first information block is configured per carrier, or per BWP (bandwidth part), or per satellite type, or per coverage area (footprint).

[0071] As one embodiment, the first information block includes part or all of the system information block (SIB).

[0072] As one embodiment, the first information block includes all or part of the fields in the IE (Information Element) "ntn-Config".

[0073] As one example, the first information block includes all or part of the fields in the IE "EphemerisInfo".

[0074] As one example, the first information block includes all or part of the fields in IE's "PositionVelocity".

[0075] As one example, the first information block includes all or part of the fields in IE "Orbital".

[0076] As an example, the first information block is transmitted via PDCCH (Physical Downlink Control Channel).

[0077] As one embodiment, the first information block includes all or part of a DCI (Downlink Control Information) signaling field.

[0078] As one embodiment, the first information block includes all or part of the RAR (Random Access Response).

[0079] As one embodiment, the first information block includes all or part of Msg2 (message 2) in the random access process.

[0080] As one embodiment, the first information block includes all or part of the MsgB (message B) in the random access process.

[0081] As an example, transmitting the first information block via higher-level signaling can reduce signaling overhead and provide more detailed ephemeris information.

[0082] As an example, transmitting the first information block via physical layer signaling can adapt to changes in ephemeris more quickly and provide greater flexibility.

[0083] As an example, during random access, the transmission of the first information block can provide ephemeris information based on the type or capability of the accessing terminal, thereby optimizing overall performance.

[0084] As one example, the ephemeris information includes an ephemeris table.

[0085] As one example, the ephemeris information includes the ephemeris tables of satellites or spacecraft.

[0086] As one example, the ephemeris information includes the orbital information of a satellite or spacecraft.

[0087] As one example, the ephemeris information includes the speed and position information of the satellite or spacecraft.

[0088] As one example, the ephemeris information includes the motion trajectory information of satellites or spacecraft.

[0089] As one example, the ephemeris information includes the type or kind of satellite or spacecraft.

[0090] As an example, the first information block indicating ephemeris information includes: all or part of the fields included in the first information block explicitly or implicitly indicating the ephemeris information.

[0091] As one embodiment, the first information block indicating ephemeris information includes: the first information block indicating at least a portion of the ephemeris information.

[0092] As one embodiment, the first information block indicating ephemeris information includes: the first information block includes at least a portion of the ephemeris information.

[0093] As one embodiment, the first information block indicating ephemeris information includes: the first information block indicating the quantized value of the ephemeris table.

[0094] As one embodiment, the first information block indicating ephemeris information includes: the first information block indicating the quantization value corresponding to the ephemeris information from a plurality of quantization values.

[0095] As an example, the first signal is a physical layer signal.

[0096] As an example, the first signal is a physical layer channel.

[0097] As an example, the first signal is a baseband signal or a radio frequency signal.

[0098] As an example, the first signal is an uplink (UL) transmission.

[0099] As an example, the first signal is PRACH (Physical Random Access Channel).

[0100] As an example, the first signal is PUSCH (Physical Uplink Shared Channel).

[0101] As one embodiment, the first signal includes PUSCH and demodulation reference signal (DMRS).

[0102] As an example, the first signal is SRS (Sound Reference Signal).

[0103] As an example, the first signal is PUCCH (Physical Uplink Control Channel).

[0104] As one embodiment, the first signal includes PUCCH and demodulation reference signal (DMRS).

[0105] As one embodiment, the first signal is a signal transmitted in a non-terrestrial network (NTN).

[0106] As an example, the first signal is a signal that supports transmission via satellite or aircraft.

[0107] As an example, the first signal is used in the random access procedure.

[0108] As an example, the first signal is used in the LTM (L1 / L2-triggered mobility) process.

[0109] As an example, the first signal is used to trigger the random access procedure of LTM.

[0110] As an example, the first signal is transmitted after the positioning state of the first node changes.

[0111] As an example, the first signal is transmitted before the positioning state of the first node changes.

[0112] As an example, the first signal is transmitted x milliseconds later than the location status change of the first node, where x milliseconds is predefined, configured, or capability-related.

[0113] As an example, the positioning status of the first node is the current positioning status of the first node.

[0114] As an example, the positioning status of the first node includes the positioning capability of the first node.

[0115] As one embodiment, the positioning status of the first node includes being able to obtain location information or not being able to obtain location information.

[0116] As one embodiment, the positioning status of the first node includes having location information or not having (or losing) location information.

[0117] As an example, the positioning status of the first node includes having a valid location or having a valid positioning.

[0118] As one embodiment, the positioning status of the first node includes having a valid GNSS position or not having a valid GNSS position.

[0119] As an example, the positioning status of the first node includes not having (or losing) a valid location or losing a valid positioning.

[0120] As an example, the positioning status of the first node includes having the ability to locate or losing the ability to locate.

[0121] As an example, the positioning status of the first node includes GNSS availability or having GNSS-based positioning capabilities.

[0122] As an example, the positioning status of the first node includes GNSS unavailable or loss of GNSS-based positioning capability.

[0123] As an example, the positioning status of the first node includes either the positioning accuracy meeting the requirements or the positioning accuracy meeting a threshold.

[0124] As an example, the positioning status of the first node includes positioning accuracy not meeting the requirements or positioning accuracy not meeting a threshold.

[0125] As an example, the positioning status of the first node includes whether the GNSS signal strength meets the requirements or whether the GNSS signal strength is greater than or equal to a threshold.

[0126] As an example, the positioning status of the first node includes whether the GNSS signal strength does not meet the requirements or the GNSS signal strength is less than a threshold.

[0127] As an example, the positioning status of the first node includes GNSS-based positioning.

[0128] As an example, the positioning status of the first node includes positioning based on methods other than GNSS.

[0129] As an example, the positioning status of the first node includes positioning via signals from the second node.

[0130] As an example, the location status of the first node includes on-site location.

[0131] As an example, the positioning status of the first node includes positioning based on reference signals.

[0132] As an example, the positioning status of the first node includes having location information continuously over a period of time.

[0133] As an example, the positioning status of the first node includes not having (or losing) location information for a period of time.

[0134] As an example, the positioning status of the first node includes having a valid location or having a valid positioning over a period of time.

[0135] As an example, the positioning status of the first node includes not having (or losing) a valid location or losing a valid positioning for a period of time.

[0136] As an example, the positioning status of the first node includes the ability to locate over a period of time.

[0137] As an example, the positioning status of the first node includes the ability to lose positioning for a period of time.

[0138] As an example, the positioning status of the first node includes whether GNSS is available for a period of time or whether it has GNSS-based positioning capabilities for a period of time.

[0139] As an example, the positioning status of the first node includes GNSS being unavailable for a period of time or losing GNSS-based positioning capabilities for a period of time.

[0140] As an example, the positioning status of the first node includes whether the positioning accuracy meets the requirements for a period of time or whether the positioning accuracy meets a threshold for a period of time.

[0141] As an example, the positioning status of the first node includes the positioning accuracy not meeting the requirements for a period of time or the positioning accuracy not meeting a threshold for a period of time.

[0142] As an example, the positioning status of the first node includes whether the GNSS signal strength always meets the requirements for a period of time or whether the GNSS signal strength is always greater than or equal to a threshold for a period of time.

[0143] As an example, the positioning status of the first node includes the GNSS signal strength consistently failing to meet requirements for a period of time or the GNSS signal strength consistently being less than a threshold for a period of time.

[0144] As an example, assuming that the position of the first node remains unchanged after the change in positioning state includes: assuming that the first node is stationary after the change in positioning state.

[0145] As an example, the assumption that the position of the first node remains unchanged after the positioning state changes includes: the first node sends uplink transmission using the timing advance value obtained from the same reference position regardless of the actual position after the positioning state changes.

[0146] As an example, assuming that the position of the first node remains unchanged after the location state changes includes: assuming that the position of the first node after the location state change is the latest valid position of the first node before the location state change.

[0147] As an example, the assumption that the position of the first node remains unchanged after the change in positioning status includes: the first node assuming that its position after the change in positioning status is the same as the position of the first node before the change in positioning status.

[0148] As one embodiment, assuming that the position of the first node remains unchanged after the positioning state changes includes: the first node sends an uplink transmission based on the timing advance value (TA) obtained from the position before the positioning state change after the positioning state change.

[0149] As one embodiment, assuming the first node's position remains unchanged after a change in positioning state includes: the first node, after the change in positioning state, based on its position before the change in positioning state... Calculate the timing in advance.

[0150] As one embodiment, assuming that the position remains unchanged after the positioning state changes includes: the first node sends an uplink transmission after the positioning state changes based on the timing advance value (TA) obtained from the effective position before the positioning state change.

[0151] As an example, the assumption that the position of the first node remains unchanged after the change in positioning status includes: the timing advance of the uplink transmission of the first node after the change in positioning status all depends on the same position.

[0152] As one embodiment, assuming that the position of the first node remains unchanged after the location status changes includes: the first node sending uplink transmissions in advance based on the timing obtained from the same location after the location status changes.

[0153] As an example, the assumption that the position of the first node remains unchanged after the change in positioning status includes: the timing advance of all uplink transmissions of the first node for a period of time after the change in positioning status depends on the same position.

[0154] As an example, the assumption that the position of the first node remains unchanged after the change in positioning status includes: the timing advance of the uplink transmission of the first node after the change in positioning status but before the first node receives the timing advance command depends on the same position.

[0155] As an example, the assumption that the position of the first node remains unchanged after the location state changes includes: the timing advance of uplink transmissions of the first node after the location state change but before the first node receives the timing advance command by m milliseconds all depend on the same location, where m milliseconds is predefined, set, or related to capability.

[0156] As one embodiment, assuming that the position of the first node remains unchanged after the location state changes includes: assuming that the position of the first node remains unchanged after the location state changes until the first node receives the timing advance command.

[0157] As an example, assuming that the position of the first node remains unchanged after the location state changes includes: assuming that the position of the first node remains unchanged until m milliseconds later than the timed advance command received by the first node after the location state changes, wherein m milliseconds is predefined, set, or related to capability.

[0158] As an example, the timing of the first signal is the timing of its transmission.

[0159] As an example, the timing of the first signal is the timing advance (TA) of the first signal.

[0160] As an example, the timing of the first signal is the timing advance value maintained by the first node when the first signal is sent.

[0161] As an example, the timing of the first signal is such that the start time of the uplink frame of the first signal transmission is earlier than the start time of the downlink frame with the same frame number.

[0162] As an example, the timing of the first signal is the advance of the start time of the uplink frame of the first signal transmission compared to the start time of the downlink frame with the same frame number.

[0163] As an example, the timing of the first signal is T of the first signal. TA value.

[0164] As an example, the timing of the first signal is a pre-compensation value in the timing advance of the first signal.

[0165] As an example, the timing of the first signal is the time-domain position of the boundary of the frame when the first signal is sent.

[0166] As an example, the timing of the first signal is the boundary moment of the frame when the first signal is sent.

[0167] In one embodiment, the first node is the sender of the first signal.

[0168] As one embodiment, the sender of the first signal is a user equipment (UE) or a terminal.

[0169] As an example, the location of the first node is its geographical location.

[0170] As an example, the location of the first node is its surface location.

[0171] As an example, the location of the first node is its geographic coordinates.

[0172] As an example, the location of the first node is the WGS84-based geographic coordinates of the first node.

[0173] As an example, the location of the first node is the latitude and longitude of the first node.

[0174] As an example, the location of the first node is the longitude and latitude distance between the first node and the reference geographical location.

[0175] As one embodiment, the position of the first node is the position obtained by the first node itself through self-positioning.

[0176] As an example, the location of the first node is the location obtained by the first node according to the Global Navigation Satellite System (GNSS).

[0177] As an example, the position of the first node is the position obtained by the first node based on the reference signal.

[0178] As an example, the position of the first node is the position obtained by the first node before the positioning state changes.

[0179] As an example, the position of the first node is the position obtained by the first node according to the Global Navigation Satellite System (GNSS) before the change in positioning status.

[0180] As an example, the position of the first node is the position obtained by the first node based on the reference signal before the positioning state changes.

[0181] As an example, the position before the location state change is used as the uplink transmission timing after the location state change, which ensures a consistent understanding of timing advance between the network and user equipment, while reducing the complexity of implementation and the impact on the standard.

[0182] As an example, the position of the first node is the position obtained by the first node after the positioning state changes.

[0183] As an example, the position of the first node is the position obtained by the first node after the change in the positioning state, which meets the requirements of the positioning method.

[0184] As an example, the position of the first node is the position obtained by the first node after the change in the positioning state, and the positioning method of the first node after the change in the positioning state is related to implementation.

[0185] As an example, the position obtained by other means after the positioning state change is used as the uplink transmission timing after the positioning state change. Although this increases the implementation complexity, it improves the timing accuracy.

[0186] As one embodiment, the position of the first node is a virtual position of the first node.

[0187] As an example, the position of the first node is the actual position of the first node.

[0188] As an example, the position of the first node is a reference position of the first node.

[0189] As an example, the position of the first node is the assumed position of the first node.

[0190] As an example, when the first node is stationary, the position of the first node is the true position of the first node; otherwise, the position of the first node is not the true position of the first node.

[0191] As one embodiment, the position of the first node is the position used by the first node to determine the timing advance.

[0192] As an example, the position of the first node is the position assumed by the first node when determining the timing advance.

[0193] As an example, the position of the first node is the position used by the first node in the NTN to determine the timing advance.

[0194] As an example, the position of the first node is the position used by the first node to determine the timing advance after the positioning state changes.

[0195] As an example, the position of the first node is the position of the first node before the change in the positioning state.

[0196] As an example, the position of the first node is the effective position of the first node before the change in the positioning state.

[0197] As an example, the location of the first node is the location of the first node corresponding to the timing advance report (TAR) prior to the change in the positioning status.

[0198] As an example, the position of the first node is the position of the first node corresponding to the timing advance command (TAC) prior to the change in the positioning state.

[0199] As an example, the position of the first node is the position of the first node used in the timing advance report included before the change in the positioning state.

[0200] As an example, the position of the first node is the position of the first node when it receives the timing advance command before the positioning state changes.

[0201] As an example, the use of the location reported in advance at regular intervals ensures consistency between the network and user equipment when the TA is adjusted or updated subsequently, improves timing accuracy, enhances performance, and reduces the complexity of user equipment.

[0202] As an example, the latest timed advance location update is adopted, requiring user equipment to update its location in real time. This ensures consistency between the network and user equipment when the TA is adjusted or updated, while also improving the similarity of the reference location and further improving the timing accuracy.

[0203] As an example, the positioning method used by the sender of the first signal is related to implementation and is not defined by the standard.

[0204] As one embodiment, the timing of the first signal depends on the ephemeris information and the position of the first node, including: the timing of the first signal is related to both the ephemeris information and the position of the first node.

[0205] As one embodiment, the timing of the first signal depends on the ephemeris information and the position of the first node, including: the timing of the first signal depends on the ephemeris information and the virtual position (or assumed position) of the first node when transmitting the first signal.

[0206] As one embodiment, the timing of the first signal depends on the ephemeris information and the position of the first node, including: both the ephemeris information and the position of the first node are used to determine the timing of the first signal.

[0207] As one embodiment, the timing of the first signal depending on the ephemeris information and the position of the first node includes: the timing advance value of the first signal depending on the ephemeris information and the position of the first node.

[0208] As one embodiment, the timing of the first signal depending on the ephemeris information and the position of the first node includes: calculating the value of at least one parameter of the timing advance value of the first signal depending on the ephemeris information and the position of the first node.

[0209] As one embodiment, the timing of the first signal depending on the ephemeris information and the position of the first node includes: the value of at least one parameter used for the timing advance value of the first signal depends on the ephemeris information and the position of the first node.

[0210] As one embodiment, the timing of the first signal depends on the ephemeris information and the position of the first node, including: the pre-compensation value of the timing advance value of the first signal depends on the ephemeris information and the position of the first node.

[0211] As one embodiment, the timing of the first signal depends on the ephemeris information and the position of the first node, including: the pre-compensation value of the timing advance value of the first signal calculated by the user equipment depends on the ephemeris information and the position of the first node.

[0212] As one embodiment, the timing of the first signal depends on the ephemeris information and the position of the first node, including:

[0213] Wherein, the timing advance value of the first signal is equal to T. TA N TA It is the value indicated by the advance timing command (TAcommand), N TA,offset It is a value related to at least one of the following three factors: duplex type, frequency range, and whether it coexists with other systems. The value is calculated using high-level configuration parameters. It depends on the ephemeris information and the value of the position of the first node, T c It is a fixed time unit.

[0214] As one embodiment, the timing of the first signal depends on the ephemeris information and the position of the first node, including: the timing advance value of the first signal and the timing advance compensation value calculated together based on the ephemeris information and the position of the first node are linearly correlated.

[0215] As one embodiment, the timing of the first signal depends on the ephemeris information and the position of the first node, including: the timing advance value of the first signal and the timing advance adjustment value calculated together based on the ephemeris information and the position of the first node are linearly related.

[0216] As an example, the timing of the first signal depends on the ephemeris information and the position of the first node, including: the timing advance value and the timing advance adjustment value of the first signal are linearly correlated, the timing advance adjustment value is equal to a first distance value divided by the speed of light, and the first distance value is calculated based on the ephemeris information and the position of the first node.

[0217] As one embodiment, the timing of the first signal depends on the ephemeris information and the position of the first node, including: the timing advance value and the timing advance adjustment value of the first signal are linearly correlated, the timing advance adjustment value is equal to the first distance value divided by the speed of light, and the first distance value is calculated together with the current satellite position obtained from the ephemeris information and the position of the first node.

[0218] As an example, the timing of the first signal depends on the ephemeris information and the position of the first node, including: the timing advance value and the timing advance adjustment value of the first signal are linearly related, the timing advance adjustment value depends on the ephemeris information and the position of the first node, and the method for calculating the timing advance adjustment value based on the ephemeris information and the position of the first node is related to implementation and is not defined in the standard.

[0219] As an example, the first node has GNSS.

[0220] As an example, the hardware of the first node supports GNSS.

[0221] As an example, the first node is equipped with GNSS.

[0222] As an example, the first node has the ability to acquire location information based on a global navigation satellite system.

[0223] As an example, the position of the first node during the uplink transmission timing before calculating the first signal is obtained based on the Global Navigation Satellite System.

[0224] As an example, the change in positioning status includes at least one of the following three: the first node losing its positioning capability, the first node regaining its positioning capability, and a change in the positioning accuracy of the first node: the change in positioning status includes only the first node losing its positioning capability.

[0225] As an example, the change in positioning status includes at least one of the following three: the first node losing its positioning capability, the first node regaining its positioning capability, and a change in the positioning accuracy of the first node: the change in positioning status includes only the first node regaining its positioning capability.

[0226] As an example, the change in positioning status includes at least one of the following three: the first node losing its positioning capability, the first node regaining its positioning capability, and the change in the positioning accuracy of the first node: the change in positioning status includes only the change in the positioning accuracy of the first node.

[0227] As an example, the change in positioning status includes at least one of the following three: the first node losing its positioning capability, the first node regaining its positioning capability, and a change in the positioning accuracy of the first node. The change in positioning status includes two of the following three: the first node losing its positioning capability, the first node regaining its positioning capability, and a change in the positioning accuracy of the first node.

[0228] As an example, the change in positioning status includes at least one of the following three: the first node losing its positioning capability, the first node regaining its positioning capability, and a change in the positioning accuracy of the first node: the change in positioning status includes the first node losing its positioning capability, the first node regaining its positioning capability, and a change in the positioning accuracy of the first node.

[0229] As one embodiment, the first node losing its positioning capability includes: the first node losing its effective position for the timing advance.

[0230] As one embodiment, the first node losing its positioning capability includes: the first node changing from having positioning capability to not having positioning capability.

[0231] As an example, the first node losing its positioning capability includes: the positioning capability or positioning function of the first node being disabled or turned off.

[0232] As an example, the first node losing its positioning capability includes: the strength of the positioning signal received by the first node does not meet the requirements or does not reach a predefined or configured threshold.

[0233] As one embodiment, the first node losing its positioning capability includes: the first node changing from being able to obtain the true location to being unable to obtain the true location.

[0234] As one example, the first node losing its positioning capability includes: the first node can only use a virtual location (assumed location) to determine the timing advance.

[0235] As one embodiment, the first node losing its positioning capability includes: the first node changing from being able to use the real location to determine the timing advance to being able to only use the virtual location (hypothetical location) to determine the timing advance.

[0236] As one example, the first node losing its positioning capability includes: the first node losing its ability to obtain its own position through the Global Navigation Satellite System.

[0237] As an example, the first node losing its positioning capability includes: the first node being unable to obtain its own position through the Global Navigation Satellite System.

[0238] As an example, the first node losing its positioning capability includes: the first node continuously losing its position information based on the Global Navigation Satellite System for a period of time.

[0239] As an example, the first node losing its positioning capability includes: the first node being unable to obtain its own valid position through the Global Navigation Satellite System.

[0240] As one example, the first node losing its positioning capability includes: the first node failing to receive positioning information from the Global Navigation Satellite System.

[0241] As one embodiment, the first node losing its positioning capability includes: the first node not receiving signals from the Global Navigation Satellite System (GNSS), or the GNSS signals received by the first node do not meet the requirements, or the strength of the GNSS signals received by the first node does not reach a threshold.

[0242] As an example, the first node losing its positioning capability includes: the first node not receiving signals from the Global Navigation Satellite System for a period of time, or the signals from the Global Navigation Satellite System received by the first node for a period of time not meeting the requirements, or the strength of the signals from the Global Navigation Satellite System received by the first node for a period of time not reaching a threshold.

[0243] As one embodiment, the first node losing its positioning capability includes: the global navigation satellite system possessed by the first node being inoperable or not functioning correctly.

[0244] As an example, the first node losing its positioning capability includes: the first node losing the latest (or real-time) location information based on the Global Navigation Satellite System.

[0245] As an example, when the first node loses its location information based on the Global Navigation Satellite System, the first node may obtain location information through other means or it may not be able to obtain location information.

[0246] As an example, when the first node loses its location information based on the Global Navigation Satellite System, the first node may use old (or previously stored) location information or may not have any location information at all.

[0247] As one embodiment, the first node regaining its positioning capability includes: the first node regaining its valid position for the timing advance.

[0248] As one embodiment, the first node regaining its positioning capability includes: the first node changing from having no positioning capability to having positioning capability.

[0249] As one embodiment, the first node regaining its positioning capability includes: the positioning capability or positioning function of the first node being enabled or turned on.

[0250] As an example, the first node regaining its positioning capability includes: the strength of the positioning signal received by the first node meets the requirements or reaches a predefined or configured threshold.

[0251] As one embodiment, the first node regaining its positioning capability includes: the first node changing from being unable to obtain its true location to being able to obtain its true location.

[0252] As one embodiment, the first node regaining its positioning capability includes: the first node using its real (or valid) location to determine a timing advance.

[0253] As one embodiment, the first node regaining its positioning capability includes: the first node changing from using a virtual location (hypothetical location) to determine timing advance to using a real location to determine timing advance.

[0254] As one embodiment, the first node regaining its positioning capability includes: the first node regaining its ability to obtain its own position through the Global Navigation Satellite System.

[0255] As an example, the ability of the first node to regain its positioning includes: the first node being able to obtain its own position through a global navigation satellite system.

[0256] As an example, the first node regaining its positioning capability includes: the first node continuously using the location information of the Global Navigation Satellite System for a period of time.

[0257] As one embodiment, the first node regaining its positioning capability includes: the first node re-acquiring its own valid position through a global navigation satellite system.

[0258] As one embodiment, the first node regaining its positioning capability includes: the first node re-receiving positioning information from the Global Navigation Satellite System.

[0259] As an example, the first node regaining positioning capability includes: the first node re-receiving the signal from the Global Navigation Satellite System (GNSS), or the signal from the GNSS received by the first node once again meets the requirements, or the strength of the signal from the GNSS received by the first node once again reaches a threshold.

[0260] As an example, the first node regaining its positioning capability includes: the first node receiving a signal from a global navigation satellite system for a period of time, or the signal from the global navigation satellite system received by the first node for a period of time consistently meeting requirements, or the strength of the signal from the global navigation satellite system received by the first node for a period of time consistently reaching a threshold.

[0261] As an example, the first node regaining its positioning capability includes: the first node regaining the ability to obtain the latest (or real-time) location information based on the Global Navigation Satellite System.

[0262] As one embodiment, the first node regaining its positioning capability includes: the first node changing from a state of losing location information based on the Global Navigation Satellite System to a state of the first node having location information based on the Global Navigation Satellite System.

[0263] As one embodiment, the first node regaining its positioning capability includes: the global navigation satellite system possessed by the first node reactivating or reactivating correctly.

[0264] As one embodiment, the first node regaining its positioning capability includes: the first node being able to regain its position information based on the updated location information of the Global Navigation Satellite System over a period of time.

[0265] As one embodiment, the change in the positioning accuracy of the first node includes: the positioning accuracy of the first node increasing or decreasing.

[0266] As one embodiment, the change in the positioning accuracy of the first node includes: the positioning accuracy of the first node changing from reaching or exceeding a threshold to falling below or failing to reach a threshold.

[0267] As one embodiment, the change in the positioning accuracy of the first node includes: the positioning accuracy of the first node changing from not reaching or below a threshold to reaching or exceeding a threshold.

[0268] As one example, the change in the positioning accuracy of the first node includes: the positioning accuracy of the first node changing from meeting the requirements to not meeting the requirements.

[0269] As one example, the change in the positioning accuracy of the first node includes: the positioning accuracy of the first node changing from not meeting the requirements to meeting the requirements.

[0270] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the position obtained by the first node reaches or exceeds a threshold.

[0271] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the position obtained by the first node does not reach or is lower than a threshold.

[0272] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the position obtained by the first node consistently reaches or exceeds a threshold over a period of time.

[0273] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the position obtained by the first node does not reach a threshold for a period of time.

[0274] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the position information obtained by the first node based on the Global Navigation Satellite System decreases.

[0275] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the location information obtained by the first node based on the Global Navigation Satellite System becomes higher.

[0276] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the location information obtained by the first node based on the Global Navigation Satellite System reaches or exceeds a threshold.

[0277] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the location information obtained by the first node based on the Global Navigation Satellite System does not reach a certain threshold.

[0278] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the location information obtained by the first node based on the Global Navigation Satellite System consistently reaches or exceeds a threshold over a period of time.

[0279] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the location information obtained by the first node based on the Global Navigation Satellite System does not reach a threshold for a period of time.

[0280] As one embodiment, the change in the positioning accuracy of the first node includes: the accuracy of the position obtained by the first node based on the Global Navigation Satellite System changes from reaching or exceeding a threshold to falling below a threshold.

[0281] As one embodiment, the change in the positioning accuracy of the first node includes: the accuracy of the position obtained by the first node based on the Global Navigation Satellite System changes from less than a threshold to reaching or exceeding a threshold.

[0282] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the position obtained by the first node based on the Global Navigation Satellite System meets the requirement.

[0283] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the position obtained by the first node based on the Global Navigation Satellite System does not meet the requirements.

[0284] As one example, the change in the positioning accuracy of the first node includes: the accuracy of the position obtained by the first node based on the Global Navigation Satellite System changes from meeting the requirements to not meeting the requirements.

[0285] As an example, the change in the positioning accuracy of the first node includes: the accuracy of the position information obtained by the first node based on the Global Navigation Satellite System changes from not meeting the requirements to meeting the requirements.

[0286] As an example, the change in positioning status is for a timing advance.

[0287] As one example, the change in positioning status is used to advance the timing.

[0288] As an example, the change in positioning status refers to the change in the acquisition status of the position used when calculating the timing advance.

[0289] As an example, the change in positioning status does not include changes in the acquisition status of the location for scenarios other than timed advance.

[0290] As an example, different positioning status changes are considered, such as becoming better or worse, becoming available or becoming unavailable, thereby supporting accurate TA estimation and indication under different changing scenarios, enhancing uplink synchronization performance, and at the same time, adopting a unified solution can reduce system complexity and save standardization workload.

[0291] Example 2

[0292] Example 2 illustrates a schematic diagram of a network architecture according to this application, as shown in Figure 2. Figure 2 illustrates a network architecture 200 for 6G, 5G NR, 5G-Advanced, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 6G, 5G NR, or LTE network architecture 200 may be referred to as 6GS (6G System) / 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 6GS / 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 6GC (6G Core Network) / 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 6GS / 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, the 6GS / 5GS / EPS provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes network node 203 and other network nodes 204. Network node 203 provides user and control plane protocol termination toward UE 201. Network node 203 can connect to other network nodes 204 via backhaul. Network node 203 may also be referred to as eNB, gNB, base station, ground station, satellite base station, aircraft base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), TRP (Transmitter Receiver Node), or some other suitable term. Network node 203 provides UE 201 with an access point to 6GC / 5GC / EPC210.Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, Internet of Things (IoT) devices, machine-type communication devices, land vehicles, automobiles, wearable devices, test equipment, RFID devices, electronic tags, sensor devices, test instruments, test tools, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. Network node 203 connects to 6GC / 5GC / EPC210 via the S1 / NG interface. 6GC / 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMFs 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF211 is the control node that handles signaling between UE201 and 6GC / 5GC / EPC210. ​​Generally, MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF212, which is itself connected to the P-GW / UPF213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-compliant Internet Protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0293] As an example, the UE201 corresponds to the first node in this application.

[0294] As an example, the UE201 supports large latency difference network communication (e.g., NTN).

[0295] As an example, the network node 203 corresponds to the second node in this application.

[0296] As one embodiment, the network node 203 supports large latency difference network communication (e.g., NTN).

[0297] Example 3

[0298] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and control plane according to this application, as shown in Figure 3. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. Figure 3 shows the radio protocol architecture for the control plane 300 for a first node (UE) and a second node (gNB) using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the first node and the second node via PHY 301. L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node. PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. PDCP sublayer 304 also provides security through encrypted data packets and supports cross-regional mobility between second nodes to the first node. RLC sublayer 303 provides upper-layer data packet segmentation and reassembly, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell between first nodes. MAC sublayer 302 is also responsible for HARQ operations. RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second and first nodes. The radio protocol architecture of user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture for the first and second nodes in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for physical layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355 and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity. Although not illustrated, the first node may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, server, etc.).

[0299] As an example, the wireless protocol architecture in Figure 3 is applicable to the first node in this application.

[0300] As an example, the wireless protocol architecture in Figure 3 is applicable to the second node in this application.

[0301] As an example, the first information block in this application is generated in RRC306, or MAC302, or MAC352, or PHY301, or PHY351.

[0302] As an example, the first signal in this application is generated by the RRC306, or MAC302, or MAC352, or PHY301, or PHY351.

[0303] Example 4

[0304] Example 4 illustrates a schematic diagram of a first node and a second node according to an embodiment of this application, as shown in Figure 4.

[0305] The first node (450) may include a controller / processor 490, a memory 480, a receiver processor 452, a transmitter / receiver 456 and a transmitter processor 455, the transmitter / receiver 456 including an antenna 460.

[0306] The second node (410) may include a controller / processor 440, a memory 430, a receiver processor 412, a transmitter / receiver 416 and a transmitter processor 415, the transmitter / receiver 416 including an antenna 420.

[0307] In the transmission from the second node (410) to the first node (450), upper-layer packets are provided to the controller / processor 440. The controller / processor 440 implements functions of Layer 2 and above. The controller / processor 440 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first node 450 based on various priority metrics. The controller / processor 440 is also responsible for HARQ operation, retransmission of lost packets, and higher-layer signaling to the first node 450. The higher-layer information carried by the first information block in this application is generated in the controller / processor 440. The transmit processor 415 implements various signal processing functions for Layer 1 (i.e., physical layer), including encoding, interleaving, scrambling, modulation, power control / allocation, precoding, and physical layer control signaling generation, such as the physical layer signal carrying the first information block, which is completed in the transmit processor 415. The generated modulation symbols are divided into parallel streams, and each stream is mapped to a corresponding multicarrier subcarrier and / or multicarrier symbol. These are then transmitted by the transmit processor 415 via the transmitter 416 to the antenna 420 as radio frequency (RF) signals. At the receiver, each receiver 456 receives the RF signal through its corresponding antenna 460. Each receiver 456 recovers the baseband information modulated onto the RF carrier and provides the baseband information to the receive processor 452. The receive processor 452 implements various signal reception processing functions at Layer 1. These functions include receiving the physical layer signal carrying the first information block, demodulating the multicarrier symbols in the multicarrier symbol stream using various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)), followed by descrambling, decoding, and deinterleaving to recover the data or control transmitted by the second node 410 on the physical channel, and then providing the data and control signals to the controller / processor 490. The controller / processor 490 is responsible for Layer 2 and above, and interprets the higher-layer information. This includes interpreting the high-level information carried in the first information block of this application. The controller / processor may be associated with memory 480, which stores program code and data. Memory 480 may be referred to as computer-readable media.

[0308] In the transmission from the first node (450) to the second node (410), similar to the transmission from the second node (410) to the first node (450), higher-layer information (including higher-layer information carried by the first signal in this application, if the first signal carries higher-layer information) is generated by the controller / processor 490 and then processed by the transmitter processor 455 for various signal transmission processing functions for the L1 layer (i.e., the physical layer). The transmitter processor 455 transmits the signal as a radio frequency signal via the transmitter 456 mapped to the antenna 460. The receiver 416 receives the radio frequency signal through its corresponding antenna 420. Each receiver 416 recovers the baseband information modulated onto the radio frequency carrier and provides the baseband information to the receiver processor 412. The receiver processor 412 implements various signal reception processing functions for the L1 layer (i.e., the physical layer) and then provides data and / or control signals to the controller / processor 440. The L2 layer functions implemented by the controller / processor 440 include interpreting the higher-layer information (including higher-layer information carried by the first signal in this application, if the first signal carries higher-layer information). The controller / processor may be associated with memory 430, which stores program code and data. Memory 430 may be computer-readable media.

[0309] As one embodiment, the first node 450 device includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first node device 450 device at least: receives a first information block, the first information block indicating ephemeris information; transmits a first signal; the first node is assumed to remain in its position after a change in positioning state, the timing of the first signal depends on the ephemeris information and the position of the first node; the change in positioning state includes at least one of the following three: the first node loses its positioning capability, the first node regains its positioning capability, and the positioning accuracy of the first node changes.

[0310] As one embodiment, the first node 450 device includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: receiving a first information block indicating ephemeris information; sending a first signal; assuming the first node's position remains unchanged after a change in positioning state, the timing of the first signal depending on the ephemeris information and the position of the first node; the change in positioning state includes at least one of the following: the first node loses positioning capability, the first node regains positioning capability, and the positioning accuracy of the first node changes.

[0311] As one embodiment, the second node 410 device includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second node device 410 device at least: transmits a first information block, the first information block indicating ephemeris information; receives a first signal; the sender of the first signal is assumed to remain at a fixed position after a change in positioning status, the timing of the first signal depending on the ephemeris information and the position of the sender of the first signal; the change in positioning status includes at least one of the following: the sender of the first signal loses positioning capability, the sender of the first signal regains positioning capability, and the positioning accuracy of the sender of the first signal changes.

[0312] As one embodiment, the second node 410 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: sending a first information block indicating ephemeris information; receiving a first signal; the sender of the first signal is assumed to remain in a fixed position after a change in positioning status, the timing of the first signal depending on the ephemeris information and the position of the sender of the first signal; the change in positioning status includes at least one of the following: the sender of the first signal loses positioning capability, the sender of the first signal regains positioning capability, or the positioning accuracy of the sender of the first signal changes.

[0313] As an example, the first node 450 is a user equipment (UE).

[0314] As an example, the first node 450 is a user equipment that supports large latency difference network communication (e.g., NTN).

[0315] As one embodiment, the second node 410 is a base station device (gNB / eNB).

[0316] As an example, the second node 410 is a base station device for large latency difference network communication (e.g., NTN).

[0317] As one embodiment, receiver 456 (including antenna 460), receiver processor 452 and controller / processor 490 are used to receive the first information block in this application.

[0318] As one embodiment, a transmitter 456 (including an antenna 460), a transmitter processor 455, and a controller / processor 490 are used to transmit the first signal in this application.

[0319] As one embodiment, transmitter 416 (including antenna 420), transmitter processor 415 and controller / processor 440 are used to transmit the first information block in this application.

[0320] As one embodiment, receiver 416 (including antenna 420), receiver processor 412 and controller / processor 440 are used to receive the first signal in this application.

[0321] Example 5

[0322] Example 5 illustrates a wireless signal transmission flowchart according to an embodiment of this application, as shown in Figure 5. In Figure 5, the second node N500 is the serving base station device of the first node U550. It should be noted that the order in this example does not limit the signal transmission order or the order of implementation in this application.

[0323] For the second node N500, the first information block is sent in step S501, the first random access preamble is received in step S502, the second information block is sent in step S503, and the first signal is received in step S504.

[0324] For the first node U550, the first information block is received in step S551, the first random access preamble is sent in step S552, the second information block is received in step S553, and the first signal is sent in step S554.

[0325] In Embodiment 5, the first information block indicates ephemeris information; the first node is assumed to remain at the same position after a change in positioning status, and the timing of the first signal depends on the ephemeris information and the position of the first node; the change in positioning status includes at least one of the following three: the first node loses positioning capability, the first node regains positioning capability, and the positioning accuracy of the first node changes; the second information block indicates a first timing advance, the timing of the first signal depends on the first timing advance and a second timing advance, the second timing advance depends on the ephemeris information and the position of the first node; the first random access preamble belongs to a target random access preamble group, and the target random access preamble group is a random access preamble group associated with timing precompensation among multiple random access preamble groups.

[0326] As an example, the first access preamble precedes the second information block.

[0327] As one embodiment, the first random access preamble follows the second information block.

[0328] As one embodiment, the second information block is transmitted via an air interface or a wireless interface.

[0329] As one embodiment, the second information block includes all or part of a higher-level signaling.

[0330] As one embodiment, the second information block includes all or part of an RRC layer signaling, or the second information block includes all or part of a MAC layer signaling.

[0331] As one example, the second information block is cell-specific.

[0332] As one embodiment, the second information block is UE-specific.

[0333] As one embodiment, the second information block is configured per carrier, or per BWP (bandwidth part), or per satellite type, or per footprint.

[0334] As one embodiment, the second information block includes part or all of the system information block (SIB).

[0335] As one embodiment, the second information block includes all or part of the fields in the IE (Information Element) "ntn-Config".

[0336] As one embodiment, the second information block includes all or part of the fields in IE "ta-Info".

[0337] As one example, the second information block includes all or part of the fields in IE "ta-Common".

[0338] As one example, the second information block includes all or part of the fields in the IE “ta-CommonDrift”.

[0339] As one example, the second information block includes all or part of the fields in the IE “ta-CommonDriftVariant”.

[0340] As one embodiment, the second information block includes a timing advance command (TAcommand).

[0341] As one embodiment, the second information block includes all or part of the RAR (Random Access Response).

[0342] As one embodiment, the second information block includes all or part of Msg2 (message 2) in the random access process.

[0343] As one embodiment, the second information block includes all or part of the MsgB (message B) in the random access process.

[0344] As an example, the second information block further includes an identification bit indicating that the first timing advance occurs after the change in the positioning state of the sender of the first signal.

[0345] As one embodiment, the second information block is a part of the first information block.

[0346] As an example, the second information block and the first information block belong to the same IE.

[0347] As one example, the second information block and the first information block belong to different IEs.

[0348] As one embodiment, the second information block and the first information block are independent.

[0349] Example 6

[0350] Example 6 illustrates a schematic diagram of a first report according to one embodiment of this application, as shown in Figure 6. In Figure 6, the straight line with arrows from the UE to the NTN satellite or aircraft represents the first report. In one embodiment, the transmission of the first report is triggered by a change in the ability or accuracy of GNSS-based location acquisition.

[0351] In Embodiment 6, the first signal in this application carries a first report, which is a timed advance indication of the positioning status of the first node in this application. The transmission of the first report is event-triggered.

[0352] As an example, by reporting the positioning status of the first node (e.g., whether GNSS is available, whether the GNSS positioning accuracy is sufficient, the method of obtaining the location, etc.), the network can adjust the uplink timing strategy and scheduling strategy accordingly, thereby improving uplink reception performance while reducing the possibility of collisions caused by timing.

[0353] As an example, the first report is a timing advance report (TAR).

[0354] As an example, the first report is a Positioning Status Report.

[0355] As an example, the first report is a capability report.

[0356] As an example, the first report is a report from the user equipment to the network side.

[0357] As an example, the first report is transmitted on PUSCH.

[0358] As an example, the first report is transmitted on the PUCCH.

[0359] As an example, the first report is transmitted on UL-SCH (Uplink Shared Channel).

[0360] As one embodiment, the first report is transmitted at the MAC layer. As a supplementary embodiment to the above, transmission via the MAC layer can save signaling overhead and improve the accuracy of the report.

[0361] As one embodiment, the first report is transmitted at the physical layer. As a supplementary embodiment to the above, the advantage of transmitting via the physical layer is that it allows for timely reporting of positioning status, reducing the possibility of uplink synchronization failure.

[0362] As an example, the first report is an uplink transmission of a MAC layer message.

[0363] As an example, the first report is transmitted in the MAC CE (control element).

[0364] As an example, the first report is transmitted in a MAC PDU (Service Data Unit).

[0365] As an example, the first report is transmitted in the MAC header.

[0366] As an example, the first report is transmitted in a MAC subPDU (subservice data unit).

[0367] As an example, the first report is transmitted in the MAC sub-header.

[0368] As an example, the first report is carried via MAC CE, simplifying the design and providing flexible configuration.

[0369] As an example, the first report is carried through the MAC header or sub-header to reduce signaling overhead.

[0370] As an example, the first report is carried via a MAC PDU or a sub-PDU, increasing the amount of information in the report.

[0371] As an example, the first report includes MAC layer messages.

[0372] As an example, the first report is read at the MAC layer.

[0373] As an example, the first report is defined at the MAC layer.

[0374] As one embodiment, the first signal carrying the first report includes: the first report being transmitted on the first signal.

[0375] As one embodiment, the first signal carrying the first report includes: a transport block (TB) transmitted on the first signal including the first report.

[0376] As one embodiment, the first signal carrying the first report includes: the first report being included in the MAC PDU transmitted on the first signal.

[0377] As one embodiment, the first signal carrying the first report includes: the first report being included in the MAC CE transmitted on the first signal.

[0378] As one embodiment, the first signal carrying a first report includes: the first report being mapped onto the first signal.

[0379] As one embodiment, the first signal carrying a first report includes: the first report being used to generate the first signal.

[0380] As an example, the first report indicating the positioning status of the first node in advance at a set time includes: the first report explicitly or implicitly indicating the positioning status of the first node in advance at a set time.

[0381] As an example, the first report's advance indication of the first node's location status includes: the first report's advance indication of the first node's current location status.

[0382] As one embodiment, the first report for indicating the positioning status of the first node in advance of the timing includes: the first report includes the positioning status of the first node when the timing advance is calculated.

[0383] As one embodiment, the first report for indicating the positioning status of the first node in advance of the timing includes: in order to advance the timing, the first report indicates the positioning status of the first node.

[0384] As one embodiment, the first report for periodically informing the positioning status of the first node includes: the first report for periodically informing the changes in the positioning status of the first node.

[0385] As one embodiment, the first report provides advance indication of the positioning status of the first node at a given time, including: the first report provides advance indication of the first node changing from one positioning status to another positioning status at a given time.

[0386] As one embodiment, the first report, which provides an advance indication of the location status of the first node at a given time, includes: the MAC CE carrying the first report including a marker indicating that the first report is for the location status of the first node.

[0387] As one embodiment, the first report, which provides an advance indication of the location status of the first node at a given time, includes: the MAC CE carrying the first report including at least one bit indicating that the first report is for the location status of the first node.

[0388] As one embodiment, the first report indicating the positioning status of the first node in advance of the timing advance includes: the MAC CE carrying the first report includes at least one bit indicating that the included timing advance field is for the positioning status of the first node.

[0389] As one embodiment, the first report for the timed advance indication of the location status of the first node includes: the first report includes at least one bit indicating that the first report is for the location status of the first node.

[0390] As an example, the first report indicating the positioning status of the first node in advance of the timing includes: the first report includes at least one bit indicating that the timing advance field included in the first report is for the positioning status of the first node.

[0391] As one embodiment, the first report indicating the positioning status of the first node in advance of the timer includes: the first report includes the positioning status of the first node in advance of the timer.

[0392] As one embodiment, the first report indicating the positioning status of the first node in relation to timing advance includes: the first report indicating that the first node has the ability to obtain the location used to calculate timing advance via GNSS.

[0393] As one embodiment, the first report indicating the positioning status of the first node in relation to timing advance includes: the first report indicating that the first node has lost the ability to obtain the location used to calculate timing advance via GNSS.

[0394] As one embodiment, the first report indicating the positioning status of the first node in relation to timing advance includes: the first report indicating that the first node has GNSS to determine (or calculate) the (effective) position required for timing advance.

[0395] As an example, the first report indicating the positioning status of the first node in relation to timing advance includes: the first report indicating that the first node loses GNSS to determine (or calculate) the (effective) position required for timing advance.

[0396] As one embodiment, the first report indicating the positioning status of the first node in terms of timing advance includes: the first report instructing the first node to obtain the location used to calculate the timing advance via GNSS.

[0397] As one embodiment, the first report for indicating the positioning status of the first node in terms of timing advance includes: the first report instructing the first node to obtain the location used to calculate the timing advance through means other than GNSS.

[0398] As an example, the first report indicating the positioning status of the first node in advance of the timing includes: the first report indicating that the accuracy of the position used to calculate the timing advance via GNSS meets the requirements.

[0399] As an example, the first report indicating the positioning status of the first node in advance of the timing includes: the first report indicating that the accuracy of the position used to calculate the timing advance via GNSS does not meet the requirements.

[0400] As an example, the first report indicating the positioning status of the first node in advance of the time interval includes: the first report indicating that the position of the first node in advance of the time interval is the actual position obtained by positioning.

[0401] As an example, the first report indicating the positioning status of the first node in advance of the time period includes: the first report indicating that the position of the first node in advance of the time period is an assumed position.

[0402] As an example, the sending of the first report being event-triggered includes: the sending of the first report being irregular.

[0403] As one embodiment, the sending of the first report being event-triggered includes: the sending of the first report being a response to a triggering event.

[0404] As an example, the sending of the first report being event-triggered includes: the sending of the first report is in response to a triggering event.

[0405] As an example, the sending of the first report is event-triggered, which means that the first report is sent only after a triggering event occurs.

[0406] As an example, the triggering event for sending the first report is predefined.

[0407] As an example, the triggering event for sending the first report is configured.

[0408] As an example, the triggering event for sending the first report includes the first node losing its location capability.

[0409] As an example, the triggering event for sending the first report includes the first node regaining its location capability.

[0410] As an example, the triggering event for sending the first report includes at least one of the following three events: the first node loses its position information based on the Global Navigation Satellite System (GNSS), the first node regains its position information based on the GNSS, or the accuracy of the position information obtained by the first node based on the GNSS changes.

[0411] As an example, the triggering event for sending the first report includes the first node losing its location information based on the Global Navigation Satellite System for a period of time.

[0412] As an example, the triggering event for sending the first report includes the first node not receiving a signal from the Global Navigation Satellite System for a period of time, or the first node receiving a signal from the Global Navigation Satellite System for a period of time that does not meet the requirements, or the strength of the signal from the Global Navigation Satellite System received by the first node for a period of time that does not reach a threshold.

[0413] As an example, the triggering event for sending the first report includes the first node continuously acquiring location information based on the Global Navigation Satellite System over a period of time.

[0414] As an example, the triggering event for sending the first report includes the first node continuously receiving signals from the Global Navigation Satellite System (GNSS) for a period of time, or the GNSS signals received by the first node for a period of time continuously meeting the requirements, or the strength of the GNSS signals received by the first node for a period of time continuously reaching or exceeding a threshold.

[0415] As an example, the triggering event for sending the first report includes the first node being able to update its location information based on the Global Navigation Satellite System again over a period of time.

[0416] As an example, the triggering event for sending the first report includes the accuracy of the location information obtained by the first node based on the Global Navigation Satellite System consistently reaching or exceeding a threshold over a period of time.

[0417] As an example, the triggering event for sending the first report includes the fact that the accuracy of the location information obtained by the first node based on the Global Navigation Satellite System does not reach a threshold for a period of time.

[0418] As an example, the triggering event for sending the first report includes the first node losing its location information based on the Global Navigation Satellite System, thereby enabling the base station to improve reception performance by avoiding collisions caused by timing issues.

[0419] As an example, the triggering event for sending the first report includes the first node regaining its location information based on the Global Navigation Satellite System, so that the base station can perform scheduling based on synchronous transmission, thereby improving scheduling flexibility and resource utilization.

[0420] As an example, the triggering event for sending the first report includes the change in the accuracy of the location information obtained by the first node based on the Global Navigation Satellite System, so that the base station can adopt an appropriate resource allocation scheme based on the positioning accuracy to optimize the overall performance.

[0421] As an example, the triggering event for sending the first report includes a change in the positioning method of the first node.

[0422] As an example, the triggering event for sending the first report includes the first node changing from its actual location to a hypothetical location.

[0423] As an example, the triggering event for sending the first report includes the first node changing from a hypothetical location to a real location.

[0424] As an example, the triggering event for sending the first report includes the first node switching from GNSS-based positioning to non-GNSS-based positioning.

[0425] As an example, the triggering event for sending the first report includes the first node switching from non-GNSS-based positioning to GNSS-based positioning.

[0426] As an example, the triggering event for sending the first report caused (or caused) the sending of the first report.

[0427] As one embodiment, the first report includes a timing advance value used to send the first report.

[0428] As one embodiment, the first report includes the minimum number of time-domain symbols greater than or equal to the timing advance value used to send the first report.

[0429] As one embodiment, the first report includes the minimum number of time slots or subframes that are greater than or equal to the timing advance value used to send the first report.

[0430] Example 7

[0431] Example 7 illustrates a schematic diagram of the position of a first node according to an embodiment of this application, as shown in Figure 7. In Figure 7, the dashed line represents the effective position of the first node before the change in positioning state, and the solid line represents the actual position of the first node after the change in positioning state.

[0432] In Embodiment 7, it is assumed that the position of the first node after the change in the positioning state in this application is the same as the latest valid position of the first node before the change in the positioning state.

[0433] As an example, the timing advance value is obtained by using the latest valid position, minimizing the impact of changes in the timing advance value caused by the rapid movement of the satellite, thereby improving reception quality while reducing reception complexity.

[0434] As an example, the latest valid position of the first node before the change in the positioning state is the latest valid position of the first node x milliseconds before the change in the positioning state, where x milliseconds is predefined, configured, or related to the UE capability.

[0435] As an example, the latest valid position of the first node before the change in the positioning state is the latest valid position of the first node y time-domain symbols before the change in the positioning state, where the y time-domain symbols are predefined, configured, or related to the UE capabilities.

[0436] As an example, the latest valid position of the first node before the change in positioning status is the position obtained by the first node according to GNSS before the change in positioning status.

[0437] As an example, the latest valid position of the first node before the change in positioning state is the position of the first node that meets the given accuracy requirement before the change in positioning state.

[0438] As an example, the latest valid position of the first node before the change in positioning status is the position where the first node was located when the strength or power of the GNSS signal before the change in positioning status met the requirements.

[0439] As an example, the latest valid position of the first node before the change in the positioning state is the latest valid position of the first node before the change in the positioning state.

[0440] As an example, the latest valid position of the first node before the change in the positioning state is the position used by the first node in the latest timed advance update before the change in the positioning state.

[0441] As an example, the latest valid position of the first node before the change in the positioning state is the position that meets the positioning requirements used by the first node in the latest timed advance update before the change in the positioning state.

[0442] As an example, the latest valid position of the first node before the change in positioning status is the position at which the first node was positioned when it received the latest timing advance command before the change in positioning status.

[0443] As an example, the latest valid position of the first node before the change in positioning status is the position used by the timing advance value included in the latest timing advance report sent by the first node before the change in positioning status.

[0444] As an example, the latest valid position of the first node before the change in positioning state is the latest true position of the first node before the change in positioning state.

[0445] As an example, the latest valid position of the first node before the change in the positioning state is the position obtained by the first node under the condition that the position of the first node is still moving before the change in the positioning state.

[0446] As an example, the location in the advance time report is used as the location for time compensation after the location acquisition status changes, which ensures the consistency between the network and user equipment when the TA is adjusted or updated, improves timing accuracy, enhances performance, and reduces the complexity of user equipment.

[0447] As an example, the location in the latest timed advance update is used as the location used for timed compensation after the location acquisition state changes. This requires the user equipment to update the location in real time, ensuring the consistency between the network and the user equipment when the TA is adjusted or updated in the future, while improving the similarity of the reference location and further improving the timing accuracy.

[0448] As one embodiment, assuming that the position of the first node after the change in positioning status is the same as the latest valid position of the first node before the change in positioning status includes: the first node using the latest valid position of the first node before the change in positioning status to calculate the uplink timing advance after the change in positioning status.

[0449] As an example, assuming that the position of the first node after the change in positioning state is the same as the latest valid position of the first node before the change in positioning state includes: the position used by the first node after the change in positioning state is the same as the latest valid position of the first node before the change in positioning state.

[0450] As one embodiment, the assumption that the first node's position after the location state change is the same as the first node's latest valid position before the location state change includes: the first node assuming that its position after p milliseconds of the location state change is the same as the first node's latest valid position before the location state change, wherein p milliseconds is predefined, configured, or dependent on the capabilities of the user equipment.

[0451] As an example, the assumption that the first node's position after the location state change is the same as the first node's latest valid position before the location state change includes: the first node assuming that its position after q time-domain symbols of the location state change is the same as the first node's latest valid position before the location state change, wherein the q time-domain symbols are predefined, configured, or dependent on the capabilities of the user equipment.

[0452] As one embodiment, assuming that the position of the first node after the change in positioning state is the same as the latest valid position of the first node before the change in positioning state includes: the first node maintaining the latest valid position of the first node before the change in positioning state after the change in positioning state.

[0453] Example 8

[0454] Example 8 illustrates a schematic diagram of a second timing advance according to an embodiment of this application, as shown in Figure 8. In Figure 8, the dashed trajectory of the satellite represents the position of the satellite at different times obtained based on ephemeris information, and the second timing advance is a timing advance value pre-compensated by the UE in real time based on the position and ephemeris information.

[0455] In embodiment 8, the second information block in this application indicates a first timing advance, the timing of the first signal in this application depends on the first timing advance and a second timing advance, and the second timing advance depends on the ephemeris information in this application and the position of the first node in this application.

[0456] As an example, the first timing advance is relative to the sender of the first signal after the change in the positioning state.

[0457] As an example, both the first timing advance and the second timing advance are real numbers.

[0458] As an example, the units of the first timing advance and the second timing advance are both microseconds.

[0459] As an example, the units of the first timing advance and the second timing advance are both seconds.

[0460] As an example, the first timing advance is equal to an integer number of Tc, where T c =1 / (480·10 3 4096 seconds

[0461] As an example, the second timing advance is equal to an integer number of Tc, where Tc =1 / (480·10 3 4096 seconds

[0462] As an example, the first timing advance is N. TA_Old Or N TA_Old ·T c T c =1 / (480·10 3 4096 seconds.

[0463] As an example, the first timing advance is N. TA Or N TA ·T c T c =1 / (480·10 3 4096 seconds.

[0464] As an example, the first timing advance is or Where T c =1 / (480·10 3 4096 seconds.

[0465] As an example, the first timing advance is the timing advance (TA) maintained when the first signal is transmitted.

[0466] As an example, the first timing advance is the old timing advance (OldTA) of the first signal.

[0467] As an example, the first timing advance is a common timing advance compensated based on the satellite trajectory.

[0468] As an example, the first timing advance is a common timing advance compensated based on the satellite trajectory and epoch time.

[0469] As an example, the first timing advance is a timing advance value that compensates for the two-way transmission delay between the uplink synchronization reference point and the service satellite, wherein the uplink synchronization reference point is the point where the downlink and uplink are frame aligned under a given timing offset.

[0470] As an example, the second timing advance is an adjustment value of timing advance (TA) based on the first timing advance when the first signal is transmitted.

[0471] As an example, the second timing advance is or Where T c =1 / (480·10 3 4096 seconds.

[0472] As one embodiment, the second timing advance is the self-compensating timing advance value of the first node.

[0473] As an example, the second timing advance is the timing advance value pre-compensated by the first node based on its own position and the satellite position.

[0474] As an example, the second timing advance is the timing advance value of the first node based on its position and satellite ephemeris pre-compensated.

[0475] As an example, the second timing advance is a timing advance value for pre-compensating bidirectional transmission delay on the service link.

[0476] As one embodiment, the second information block indicating the first timing advance includes: all or only part of the second information block explicitly or implicitly indicating the first timing advance.

[0477] As one embodiment, the second information block indicating the first timing advance includes: the second information block indicating the value of at least one parameter used to calculate the first timing advance.

[0478] As one embodiment, the second information block indicating the first timing advance includes: the second information block updating the timing advance, wherein the first timing advance is equal to the sum of an old timing advance value and the timing advance value updated by the second information block.

[0479] As one embodiment, the second information block indicating the first timing advance includes: the second information block indicating an updated value of the timing advance, wherein the first timing advance is equal to the sum of an old timing advance value and the updated value of the timing advance indicated by the second information block.

[0480] As one embodiment, the second information block indicating the first timing advance includes: the second information block indicating at least one of the three: common timing advance (TA common), common timing advance drift (drift), and common timing advance drift variation (variant), wherein the three are used to calculate or determine the first timing advance.

[0481] As one embodiment, the second information block indicating the first timing advance includes: the second information block indicating TA Common ,TA CommonDrift , and TA CommonDriftVariant At least one of these three, TA Common ,TA CommonDrift , and TA CommonDriftVariant All three are used to calculate or determine the first timing advance.

[0482] As one embodiment, the second information block indicates that the first timing advance includes: the first timing advance is equal to twice the delay. common The value of (t) divided by the speed of light, where

[0483] The second information block indicates TA Common ,TA CommonDrift , and TA CommonDriftVariant At least one of these three, t epoch It's configured; 't' represents time.

[0484] As one embodiment, the timing of the first signal depending on the first timing advance and the second timing advance includes: the timing of the first signal is related to both the first timing advance and the second timing advance.

[0485] As one embodiment, the timing of the first signal depends on the first timing advance and the second timing advance, including: the first timing advance and the second timing advance are used together to determine or calculate the timing of the first signal.

[0486] As one embodiment, the timing of the first signal depending on the first timing advance and the second timing advance includes: the timing advance of the first signal is linearly related to the first timing advance, and the timing advance of the first signal is linearly related to the second timing advance.

[0487] As an example, the timing of the first signal depends on the first timing advance and the second timing advance, which includes: the first timing advance and the second timing advance are two parameters for calculating the timing advance of the first signal.

[0488] As one embodiment, the timing of the first signal depends on the first timing advance and the second timing advance, including: the sum of the first timing advance and the second timing advance is used to determine or calculate the timing advance of the first signal.

[0489] As one embodiment, the timing dependence of the first signal on the first timing advance and the second timing advance includes: the timing advance value of the first signal equals... Where, N TA It is the value indicated by the advance timing command (TA command), N TA,offset It is a value related to at least one of the following three factors: duplex type, frequency range, and whether it coexists with other systems. This represents the first timing advance. T represents the second timing advance. c =1 / (480·10 3 4096 seconds.

[0490] As one embodiment, the timing dependence of the first signal on the first timing advance and the second timing advance includes: the timing advance value of the first signal equals... , where N TA N represents the first timing advance. TA,offset It is a value related to at least one of the following three factors: duplex type, frequency range, and whether it coexists with other systems. The value is calculated using high-level configuration parameters. T represents the second timing advance. c =1 / (480·10 3 4096 seconds.

[0491] As one embodiment, the second timing advance depends on the ephemeris information and the position of the first node, including: the second timing advance is related to both the ephemeris information and the position of the first node.

[0492] As one embodiment, the second timing advance depends on the ephemeris information and the position of the first node, including: the ephemeris information and the position of the first node are both used to determine or calculate the second timing advance.

[0493] As one embodiment, the second timing advance depends on the ephemeris information and the position of the first node, including: the second timing advance, the ephemeris information, and the position of the first node have a corresponding relationship.

[0494] As one embodiment, the second timing advance depends on the ephemeris information and the position of the first node, including: the second timing advance is equal to a first distance value divided by the speed of light, where the first distance value is calculated based on the ephemeris information and the position of the first node together.

[0495] As one embodiment, the second timing advance depends on the ephemeris information and the position of the first node, including: the second timing advance is equal to the first distance value divided by the speed of light, and the first distance value is calculated together with the current satellite position obtained from the ephemeris information and the position of the first node.

[0496] As one embodiment, the second timing advance depends on the ephemeris information and the position of the first node, including: the second timing advance is equal to twice the first distance value divided by the speed of light, where the first distance value is the distance between the current satellite position obtained from the ephemeris information and the position of the first node.

[0497] As one embodiment, the second timing advance depends on the ephemeris information and the position of the first node, including: the second timing advance depends on twice the first delay value, where the first delay value is the one-way transmission delay between the current satellite position and the first node.

[0498] As one embodiment, the second timing advance depends on the ephemeris information and the position of the first node, including: the second timing advance depends on a first delay value, the first delay value being the two-way transmission delay between the current satellite position and the first node.

[0499] Example 9

[0500] Example 9 illustrates a schematic diagram of a first marker according to an embodiment of this application, as shown in Figure 9. In Figure 9, the thick frame represents all the bits carried by the first signal, and the two gray-filled thin frame rectangles within the thick frame represent the bits of the first marker and the bits in the timing advance value field, respectively.

[0501] In Embodiment 9, the first signal in this application carries a first marker, which indicates that the first signal carries a timing advance domain after the change in the positioning state of the first node in this application.

[0502] As an example, the type of timing advance domain is indicated by a first marker, so that the same information format is used before and after the location acquisition status changes or before and after the update, reducing the standardization workload and simplifying the system.

[0503] As an example, the first flag is a flag field.

[0504] As an example, the first tag is a tag bit.

[0505] As an example, the first tag is a field in the signaling carried by the first signal.

[0506] As an example, the first tag is a field in the MAC layer signaling carried by the first signal.

[0507] As an example, the first marker is a field in the MAC CE, MAC PDU, or MAC header carried by the first signal.

[0508] As an example, the first tag is a field in the first report of this application.

[0509] As an example, at least one bit is used for the first tag.

[0510] As an example, the first signal carries a timing advance field.

[0511] As an example, the timing advance field carried by the first signal is the field indicating the timing advance value included in the MAC layer signaling carried by the first signal.

[0512] As an example, the timing advance field carried by the first signal is a field that indicates the timing advance value transmitted on the first signal.

[0513] As an example, the timing advance field carried by the first signal is a field that indicates the timing advance value included in the MAC PDU, MAC CE, or MAC header transmitted on the first signal.

[0514] As one embodiment, the timing advance field carried by the first signal is multiple bits of the timing advance value indicated by the first signal.

[0515] As an example, the timing advance field carried by the first signal is the field carried by the first signal that is used for the timing advance value.

[0516] As one embodiment, the timing advance field carried by the first signal is the indication T included in the MAC layer signaling carried by the first signal.TA The field of values.

[0517] As one embodiment, the timing advance field carried by the first signal is an indication included in the MAC layer signaling carried by the first signal. value or The domain.

[0518] As an example, the timing advance field carried by the first signal is a field that carries the minimum number of time-domain symbols that indicate a timing advance value of not less than the timing advance value.

[0519] As an example, the timing advance field carried by the first signal is a field carried by the first signal that indicates the minimum number of time slots (or subframes) not less than the timing advance value.

[0520] As an example, the timing advance field carried by the first signal is the field of the minimum number of time-domain symbols carried by the first signal that indicate a value not less than at least one of the parameters in the timing advance value.

[0521] As an example, the timing advance field carried by the first signal is a field carried by the first signal that indicates the minimum number of time slots (or subframes) with a value not less than at least one of the parameters in the timing advance value.

[0522] As an example, the timing advance field carried by the first signal is an indication carried by the first signal that is not less than T. TA The minimum number of time-domain symbols in the domain.

[0523] As an example, the timing advance field carried by the first signal is an indication carried by the first signal that is not less than T. TA The field representing the minimum number of time slots (or subframes).

[0524] As one embodiment, the timing advance field carried by the first signal is an indication carried by the first signal that is not less than... The minimum number of time-domain symbols in the field.

[0525] As one embodiment, the timing advance field carried by the first signal is an indication carried by the first signal that is not less than... The field representing the minimum number of time slots (or subframes).

[0526] As one embodiment, the timing advance field carried by the first signal is an indication carried by the first signal. value or The domain.

[0527] As one embodiment, the first mark indicating the timing advance domain after the first signal carries the positioning state change for the first node includes: the first mark explicitly or implicitly indicating the timing advance domain after the first signal carries the positioning state change for the first node.

[0528] As one embodiment, the first mark indicating that the timing advance domain carried by the first signal after the change in the positioning state of the first node includes: the first mark indicating that the timing advance domain carried by the first signal is after the change in the positioning state of the first node.

[0529] As one embodiment, the first mark indicating that the first signal carries a timing advance domain after the change in the positioning state of the first node includes: the first mark indicating that the timing advance domain carried by the first signal is the positioning state after the change in the positioning state of the first node.

[0530] As one embodiment, the first marker indicating that the first signal carries a timing advance domain after the change in the positioning state of the first node includes: the first marker indicating that the change in the positioning state of the first node has occurred.

[0531] As one embodiment, the first mark indicating that the first signal carries a timing advance domain after the positioning state change of the first node includes: the first mark indicating that the timing advance domain carried by the first signal is associated with the positioning state change of the first node.

[0532] As one embodiment, the first mark indicating that the first signal carries a timing advance domain after the change in the positioning state of the first node includes: the first mark indicating that the timing advance domain carried by the first signal is associated with the positioning state of the first node after the change in the positioning state.

[0533] As one embodiment, the first mark indicating the timing advance domain carried by the first signal after the change in the positioning state of the first node includes: the first mark indicating the timing advance domain carried by the first signal corresponds to the change in the positioning state of the first node.

[0534] As one embodiment, the first mark indicating the timing advance domain carried by the first signal after the change in the positioning state of the first node includes: the first mark indicating the timing advance domain carried by the first signal corresponds to the positioning state of the first node after the change in the positioning state.

[0535] As one embodiment, the first mark indicating the timing advance domain carried by the first signal after the change in the positioning state of the first node includes: the first mark indicating the type of timing advance domain carried by the first signal.

[0536] As one embodiment, the first mark indicating the timing advance domain following the change in the positioning state of the first node carried by the first signal includes: the first mark indicating the type of timing advance report included in the timing advance domain carried by the first signal.

[0537] As one embodiment, the first mark indicating that the first signal carries a timing advance domain after the change in the positioning state of the first node includes: the first mark indicating that the timing advance domain carried by the first signal is for the positioning state after the change in the positioning state of the first node, rather than for the positioning state before the change in the positioning state of the first node.

[0538] As one embodiment, the first mark indicates that the timing advance field carried by the first signal after the change in the positioning state of the first node includes: the timing advance report included in the timing advance field carried by the first signal is obtained based on an assumed position rather than the actual position when the first signal was sent.

[0539] As one embodiment, the first mark indicates that the timing advance domain carried by the first signal after the change in the positioning state of the first node includes: the timing advance report included in the timing advance domain carried by the first signal is obtained based on an assumed position.

[0540] As one embodiment, the first mark indicates that the timing advance field carried by the first signal after the change in the positioning state of the first node includes: the timing advance report included in the timing advance field carried by the first signal is obtained based on the actual position of the first node before the change in the positioning state.

[0541] As one embodiment, the first mark indicating that the timing advance field carried by the first signal after the change in the positioning state of the first node includes: the timing advance report included in the timing advance field carried by the first signal depends on the timing advance value before the first report rather than on the timing advance value when the first report is sent.

[0542] As one embodiment, the first mark indicates that the timing advance domain carried by the first signal after the change in the positioning state of the first node includes: the timing advance report included in the timing advance domain carried by the first signal depends on an assumed timing advance value.

[0543] As one embodiment, the first mark indicates that the timing advance field carried by the first signal after the change in the positioning state of the first node includes: the timing advance report included in the timing advance field carried by the first signal depends on the timing advance value obtained assuming that the position of the first node remains unchanged after the change in the positioning state.

[0544] As one embodiment, the first mark indicates that the timing advance field carried by the first signal after the change in the positioning state of the first node includes: the timing advance report included in the timing advance field carried by the first signal depends on the timing advance value obtained assuming that the position of the first node remains unchanged after the change in the positioning state.

[0545] Example 10

[0546] Example 10 illustrates a schematic diagram of a third timing advance according to an embodiment of this application, as shown in Figure 10. In Figure 10, the black dots represent a synchronization reference point under satellite coverage, and the common timing compensation between the synchronization reference point and the satellite corresponds to the third timing advance.

[0547] In Embodiment 10, the first information block in this application indicates a third timing advance, and the timing of the first signal in this application depends on the third timing advance, which is time-varying.

[0548] As an example, the third timing advance is a real number.

[0549] As an example, the unit of the third timing advance is microseconds.

[0550] As an example, the unit of the third timing advance is seconds.

[0551] As an example, the third timing advance is equal to an integer number of Tc, where T c =1 / (480·10 3 4096 seconds

[0552] As an example, the third timing advance is or Where T c =1 / (480·103 4096 seconds.

[0553] As an example, the third timing advance is a common timing advance compensated based on the satellite trajectory.

[0554] As an example, the third timing advance is a common timing advance compensated based on the satellite trajectory and epoch time.

[0555] As an example, the third timing advance is a timing advance value that compensates for the two-way transmission delay between the uplink synchronization reference point and the service satellite, wherein the uplink synchronization reference point is the point where the downlink and uplink are frame aligned given a timing offset.

[0556] As an example, the third timing advance is the same as the first timing advance.

[0557] As an example, the third timing advance is different from the first timing advance.

[0558] As one embodiment, the first information block indicating a third timing advance includes: all or only part of the first information block explicitly or implicitly indicating the third timing advance.

[0559] As one embodiment, the first information block indicating a third timing advance includes: the first information block indicating the value of at least one parameter used to calculate the third timing advance.

[0560] As one embodiment, the first information block indicating the third timing advance includes: the first information block indicating at least one of the three: common timing advance (TA common), common timing advance drift (drift), and common timing advance drift variation (variant), wherein the three are used to calculate or determine the third timing advance.

[0561] As one embodiment, the first information block indicating a third timing advance includes: the first information block indicating TA Common ,TA CommonDrift , and TA CommonDriftVariant At least one of these three, TA Common ,TA CommonDrift , and TA CommonDriftVariant All three are used to calculate or determine the third timing advance.

[0562] As one embodiment, the first information block indicates that the third timing advance includes: the third timing advance is equal to twice the delay. common The value of (t) divided by the speed of light, where

[0563] The first information block indicates TA Common ,TA CommonDrift , and TA CommonDriftVariant At least one of these three, t epoch It's configured; 't' represents time.

[0564] As one embodiment, the third timing advance is time-varying, meaning that the calculation formula for the third timing advance includes a time parameter.

[0565] As an example, the third timing advance is time-varying, meaning that one value of the third timing advance is only for a single point in time (or moment).

[0566] As an example, the third timing advance is time-varying, meaning that one value of the third timing advance is only relevant to the transmission time of the first signal.

[0567] As an example, the third timing advance being time-varying includes the following: the value of the third timing advance drifts over time.

[0568] As one embodiment, the third timing advance is time-varying, including: using parameters that drift over time when calculating the third timing advance.

[0569] As one embodiment, the third timing advance is time-varying, including parameters that drift over time.

[0570] As one embodiment, the timing of the first signal depending on the third timing advance includes: the timing of the first signal is related to the third timing advance.

[0571] As one embodiment, the timing of the first signal depending on the third timing advance includes: the third timing advance being used to determine or calculate the timing of the first signal.

[0572] As one embodiment, the timing of the first signal depending on the third timing advance includes: the timing advance of the first signal and the third timing advance are linearly related.

[0573] As one embodiment, the timing of the first signal depending on the third timing advance includes: the third timing advance is a parameter for calculating the timing advance of the first signal.

[0574] As one embodiment, the timing of the first signal depending on the third timing advance includes: the sum of the first timing advance, the second timing advance, and the third timing advance is used to determine or calculate the timing advance of the first signal.

[0575] As one embodiment, the timing dependence of the first signal on the third timing advance includes: the timing advance value of the first signal equals... Where, N TA N represents the first timing advance. TA,offset It is a value related to at least one of the following three factors: duplex type, frequency range, and whether it coexists with other systems. This represents the third timing advance. T represents the second timing advance. c =1 / (480·10 3 4096 seconds.

[0576] As one embodiment, the timing dependence of the first signal on the third timing advance includes: the timing advance value of the first signal equals... Where, N TA It is the value indicated by the advance timing command (TAcommand), N TA The offset is a value related to at least one of the following three factors: duplex type, frequency range, and whether it coexists with other systems. This represents the third timing advance. It depends on the ephemeris information and the value of the position of the first node, T c =1 / (480·10 3 4096 seconds.

[0577] Example 11

[0578] Example 11 illustrates a schematic diagram of a target random access preamble group according to an embodiment of this application, as shown in Figure 11. In Figure 11, each ellipse represents one of a plurality of random access preamble groups, each rectangle represents a feature combination, and the diagonally filled ellipse represents a target random access preamble group. The feature combination associated with the target random access preamble group includes a timing precompensation feature.

[0579] In Embodiment 11, the first random access preamble in this application belongs to a target random access preamble group, which is a random access preamble group associated with timing precompensation among multiple random access preamble groups.

[0580] As an example, by using random access preamble packets to distinguish pre-compensation capabilities, the network can obtain the location status of user equipment earlier, optimize scheduling and resource allocation, and improve resource utilization efficiency and overall system performance.

[0581] As an example, the first random access preamble is a preamble that triggers or initiates the random access procedure.

[0582] As an example, the first random access preamble is generated from a sequence.

[0583] As an example, the ZC (Zadoff-Chu) sequence is used to generate the first random access preamble.

[0584] As an example, a pseudo-random sequence is used to generate the first random access preamble.

[0585] As an example, the first random access preamble adopts one of the preamble formats 0, 1, 2, and 3.

[0586] As an example, the first random access preamble adopts one of the preamble formats A1, A2, A3, B1, B2, B3, B4, C0, and C2.

[0587] As an example, the preamble format used in the first random access preamble is configured by signaling.

[0588] As an example, the sequence length of the first random access preamble is equal to 139, 571, 839, or 1151.

[0589] As an example, the target random access preamble group includes at least one random access preamble.

[0590] As an example, the first random access preamble is a random access preamble included in the target random access preamble group.

[0591] As an example, each of the plurality of random access preambles includes at least one random access preamble.

[0592] As an example, each of the plurality of random access preambles includes at least one preamble sequence.

[0593] As an example, each of the plurality of random access preambles corresponds to a feature combination.

[0594] As an example, each of the plurality of random access preambles corresponds to a capability combination.

[0595] As an example, each of the plurality of random access preambles is configured together with a feature.

[0596] As an example, each of the plurality of random access preambles and a feature combination is configured in the same IE (information element).

[0597] As an example, the plurality of random access preamble groups are predefined.

[0598] As an example, the plurality of random access preamble groups are configured.

[0599] As an example, each of the plurality of random access preambles is a preamble partition.

[0600] As one embodiment, the target random access preamble group is one of a plurality of random access preamble groups associated with a random access preamble group with timing precompensation, including: the target random access preamble group is one of a plurality of random access preamble groups that corresponds to the random access preamble group with timing precompensation.

[0601] As one embodiment, the target random access preamble group is a random access preamble group associated with timing precompensation among multiple random access preamble groups, including: the target random access preamble group is a random access preamble group associated with timing precompensation capability among multiple random access preamble groups.

[0602] As one embodiment, the target random access preamble group is one of multiple random access preamble groups associated with a random access preamble group having timing precompensation, including: the target random access preamble group is one of multiple random access preamble groups associated with a random access preamble group having GNSS positioning capability.

[0603] As one embodiment, the target random access preamble group is one of multiple random access preamble groups associated with a random access preamble group having timing precompensation, including: the target random access preamble group is one of multiple random access preamble groups associated with a random access preamble group having GNSS positioning capability and effective GNSS positioning.

[0604] As an example, the target random access preamble group is one of multiple random access preamble groups associated with a random access preamble group having timing precompensation, including: the target random access preamble group is one of multiple random access preamble groups associated with a random access preamble group having GNSS positioning capability and GNSS signal strength meeting the requirements.

[0605] As an example, the target random access preamble group is a random access preamble group associated with a timing precompensation among multiple random access preamble groups, including: the target random access preamble group is a random access preamble group associated with an effective positioning capability among multiple random access preamble groups, the effective positioning capability including at least the first of the following four: having positioning capability, positioning accuracy meeting requirements, receiving signal strength for positioning meeting requirements, and positioning delay meeting requirements.

[0606] As one embodiment, the target random access preamble group being associated with a random access preamble group having timing precompensation among multiple random access preamble groups includes: the target random access preamble group being associated with a random access preamble group having timing precompensation among multiple random access preamble groups. The ability to randomly access the preamble group.

[0607] As one embodiment, the target random access preamble group is one of a plurality of random access preamble groups associated with a random access preamble group having timing precompensation, including: the target random access preamble group is one of a plurality of random access preamble groups associated with a random access preamble group having the ability to precompensate timing advance values ​​based on location.

[0608] As one embodiment, the target random access preamble group is one of a plurality of random access preamble groups associated with a random access preamble group having timing precompensation, including: the target random access preamble group is one of a plurality of random access preamble groups associated with the ability to adjust timing advance values ​​in an open loop.

[0609] As one embodiment, the target random access preamble group is one of multiple random access preamble groups associated with a random access preamble group having timing precompensation, including: the target random access preamble group is one of multiple random access preamble groups associated with a random access preamble group having the ability to adjust the timing advance value without using a timing advance command.

[0610] As one embodiment, the target random access preamble group is one of a plurality of random access preamble groups associated with a random access preamble group having timing precompensation, including: the target random access preamble group is one of a plurality of random access preamble groups associated with a combination of features including timing precompensation features.

[0611] As one embodiment, the target random access preamble group is one of a plurality of random access preamble groups associated with a random access preamble group having timing precompensation, including: the target random access preamble group is one of a plurality of random access preamble groups associated with a combination of capabilities including timing precompensation capability.

[0612] As an example, the target random access preamble group is one of multiple random access preamble groups associated with a random access preamble group with timing precompensation, including: the target random access preamble group is a random access preamble group that a UE with timing precompensation characteristics (or capabilities) can select from multiple random access preamble groups.

[0613] As an example, the target random access preamble group is a random access preamble group associated with a timing precompensation random access preamble group among multiple random access preamble groups, including: the target random access preamble group is a random access preamble group composed of random access preambles that can be selected by a UE with timing precompensation characteristics (or capabilities) among multiple random access preamble groups.

[0614] As one embodiment, the target random access preamble group is one of a plurality of random access preamble groups associated with a random access preamble group having timing precompensation, including: the target random access preamble group is one of a plurality of random access preamble groups configured together with a combination of features including timing precompensation.

[0615] As one embodiment, the target random access preamble group is a random access preamble group associated with a timing precompensation feature among multiple random access preamble groups. This includes: the multiple random access preamble groups each correspond to multiple feature combinations, and each feature combination includes at least one feature; the timing precompensation feature belongs to a target feature combination among the multiple feature combinations, and the target random access preamble group is the random access preamble group among the multiple random access preamble groups that corresponds to the target feature combination. As a supplementary embodiment of the above embodiment, the correspondence between the multiple random access preamble groups and the multiple feature combinations is predefined or configured. As a supplementary embodiment of the above embodiment, the multiple feature combinations are predefined or configured.

[0616] As one embodiment, the target random access preamble group is a random access preamble group associated with timing precompensation among multiple random access preamble groups, including: the multiple random access preamble groups and multiple feature combinations are configured together, each of the multiple feature combinations includes at least one feature; the timing precompensation feature belongs to a target feature combination among the multiple feature combinations, and the target random access preamble group is a random access preamble group among the multiple random access preamble groups that is configured together with the target feature combination.

[0617] As an example, having timing pre-compensation means having the capability of timing pre-compensation.

[0618] As an example, the aforementioned timing pre-compensation means having the characteristic of timing pre-compensation.

[0619] As an example, the presence of timing pre-compensation is a feature (or capability) of GNSS positioning.

[0620] As an example, the timing pre-compensation feature is a characteristic (or capability) of having GNSS positioning and GNSS signal strength meeting requirements.

[0621] As an example, the presence of timing pre-compensation is a characteristic (or capability) of effective GNSS positioning.

[0622] As an example, having timing pre-compensation means having the characteristic (or capability) of effective positioning, and the effective positioning characteristic (or capability) includes at least one of the following four: having positioning capability, positioning accuracy meeting requirements, receiving signal strength for positioning meeting requirements, and positioning delay meeting requirements.

[0623] As one embodiment, the timing pre-compensation is to obtain Characteristics (or abilities).

[0624] As an example, the timing pre-compensation means having the characteristic (or capability) of pre-compensating for timing advance values ​​based on location.

[0625] As an example, the timing pre-compensation refers to the feature (or capability) of having a timing advance value to pre-compensate bidirectional transmission delay on a service link.

[0626] As one embodiment, the plurality of random access preambles includes a random access preamble associated with missing timing precompensation.

[0627] As an example, the plurality of random access preambles includes random access preambles that are not associated with timing precompensation features (or capabilities).

[0628] As an example, the plurality of random access preambles includes random access preambles associated with those that do not have effective location characteristics (or capabilities).

[0629] As an example, the plurality of random access preamble groups includes random access preamble groups that are not associated with GNSS effective positioning characteristics (or capabilities).

[0630] Example 12

[0631] Example 12 illustrates a structural block diagram of a processing device in a first node of an embodiment, as shown in Figure 12. In Figure 12, the first node processing device 1200 includes a first receiver 1201 and a first transmitter 1202. The first receiver 1201 includes the transmitter / receiver 456 (including antenna 460) in Figure 4 of this application, a receiving processor 452, and a controller / processor 490; the first transmitter 1202 includes the transmitter / receiver 456 (including antenna 460) in Figure 4 of this application, a transmitting processor 455, and a controller / processor 490.

[0632] In embodiment 12, the first receiver 1201 receives a first information block, which indicates ephemeris information; the first transmitter 1202 sends a first signal; wherein, the first node is assumed to remain in its position after a change in positioning status, and the timing of the first signal depends on the ephemeris information and the position of the first node; the change in positioning status includes at least one of the following three: the first node loses its positioning capability, the first node regains its positioning capability, and the positioning accuracy of the first node changes.

[0633] As one embodiment, the first signal carries a first report, which indicates the positioning status of the first node in advance at a certain time, and the transmission of the first report is event-triggered.

[0634] As an example, the first node is assumed to have the same position after the location state change as its latest valid position before the location state change.

[0635] As an example, the first receiver 1201 receives a second information block; wherein the second information block indicates a first timing advance, the timing of the first signal depends on the first timing advance and a second timing advance, and the second timing advance depends on the ephemeris information and the position of the first node.

[0636] As one embodiment, the first signal carries a first marker indicating that the first signal carries a timing advance domain following the change in the positioning state of the first node.

[0637] As an example, the first information block indicates a third timing advance, the timing of the first signal depending on the third timing advance, which is time-varying.

[0638] As an example, the first transmitter 1202 transmits a first random access preamble, which belongs to a target random access preamble group. The target random access preamble group is a random access preamble group associated with timing precompensation among multiple random access preamble groups.

[0639] Example 13

[0640] Example 13 illustrates a structural block diagram of a processing device in a second node of an embodiment, as shown in Figure 13. In Figure 13, the second node processing device 1300 includes a second transmitter 1301 and a second receiver 1302. The second transmitter 1301 includes the transmitter / receiver 416 (including antenna 460) in Figure 4 of this application, a transmission processor 415, and a controller / processor 440; the second receiver 1302 includes the transmitter / receiver 416 (including antenna 460) in Figure 4 of this application, a reception processor 412, and a controller / processor 440.

[0641] In embodiment 13, the second transmitter 1301 transmits a first information block, the first information block indicating ephemeris information; the second receiver 1302 receives a first signal; wherein, the sender of the first signal is assumed to remain at the same position after a change in positioning status, and the timing of the first signal depends on the ephemeris information and the position of the sender of the first signal; the change in positioning status includes at least one of the following three: the sender of the first signal loses positioning capability, the sender of the first signal regains positioning capability, and the positioning accuracy of the sender of the first signal changes.

[0642] As one embodiment, the first signal carries a first report, which is a timed advance indication of the location status of the sender of the first signal, and the transmission of the first report is event-triggered.

[0643] As an example, the sender of the first signal is assumed, after the change in the positioning state, to have the same position as the sender of the first signal before the change in the positioning state.

[0644] As one embodiment, the second transmitter 1301 transmits a second information block; wherein the second information block indicates a first timing advance, the timing of the first signal depends on the first timing advance and a second timing advance, the second timing advance depending on the ephemeris information and the location of the sender of the first signal.

[0645] As one embodiment, the first signal carries a first marker indicating that the first signal carries a timing advance domain following the change in the positioning state of the sender of the first signal.

[0646] As an example, the first information block indicates a third timing advance, the timing of the first signal depending on the third timing advance, which is time-varying.

[0647] As an example, the second receiver 1302 receives a first random access preamble; wherein the first random access preamble belongs to a target random access preamble group, and the target random access preamble group is a random access preamble group associated with timing precompensation among multiple random access preamble groups.

[0648] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The first node or second node or UE or terminal or device in this application includes, but is not limited to, mobile phones, tablets, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, Ambient IoT devices, RFID devices, reader devices, vehicle communication devices, aircraft, airplanes, drones, remote-controlled airplanes, testing devices, testing equipment, testing instruments, etc. The base station equipment or base station or network-side equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, Transmitter Receiver Nodes (TRPs), relay satellites, satellite base stations, airborne base stations, testing devices, testing equipment, testing instruments, etc.

[0649] Those skilled in the art will understand that the present invention can be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A first node for wireless communication, the first node comprising: include: A first receiver receives a first information block, which indicates ephemeris information. The first transmitter sends the first signal; Wherein, the first node is assumed to remain in its position after the positioning status changes, and the timing of the first signal depends on the ephemeris information and the position of the first node; the positioning status change includes at least one of the following three: the first node loses its positioning capability, the first node regains its positioning capability, and the positioning accuracy of the first node changes.

2. The first node of claim 1, characterized in that, The first signal carries a first report, which is a timed advance indication of the positioning status of the first node. The transmission of the first report is event-triggered.

3. The first node of claim 1 or 2, wherein, After the location state changes, the first node is assumed to have the same position as its latest valid position before the location state change.

4. The first node of any of claims 1 to 3, wherein, The first receiver receives a second information block; wherein the second information block indicates a first timing advance, the timing of the first signal depends on the first timing advance and a second timing advance, and the second timing advance depends on the ephemeris information and the position of the first node.

5. The first node of any of claims 1 to 4, wherein, The first signal carries a first marker indicating that the first signal carries a timing advance domain following the change in the positioning state of the first node.

6. The first node of any of claims 1 to 5, wherein, The first information block indicates a third timing advance, the timing of the first signal depends on the third timing advance, and the third timing advance is time-varying.

7. The first node of any of claims 1-6, wherein, The first transmitter sends a first random access preamble, which belongs to a target random access preamble group. The target random access preamble group is a random access preamble group associated with timing precompensation among multiple random access preamble groups. 8.A second node for wireless communication, comprising: include: The second transmitter sends a first information block, which indicates ephemeris information. The second receiver receives the first signal; Wherein, the sender of the first signal is assumed to remain at the same position after the positioning status changes, and the timing of the first signal depends on the ephemeris information and the position of the sender of the first signal; the positioning status change includes at least one of the following three: the sender of the first signal loses positioning capability, the sender of the first signal regains positioning capability, and the positioning accuracy of the sender of the first signal changes.

9. A method in a first node for wireless communication, the method comprising: include: Receive the first information block, which indicates ephemeris information; Send the first signal; Wherein, the first node is assumed to remain in its position after the positioning status changes, and the timing of the first signal depends on the ephemeris information and the position of the first node; the positioning status change includes at least one of the following three: the first node loses its positioning capability, the first node regains its positioning capability, and the positioning accuracy of the first node changes.

10. A method in a second node for wireless communication, the method comprising: include: Send the first information block, which indicates ephemeris information; Receive the first signal; The sender of the first signal assumes a position unchanged after a change in positioning state, and timing of the first signal depends on the ephemeris information and the position of the sender of the first signal; the change in positioning state includes at least one of loss of positioning capability of the sender of the first signal, regaining of positioning capability of the sender of the first signal, and change in positioning accuracy of the sender of the first signal.

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