Method and apparatus used in node for wireless communication

Abstract

Disclosed in the present application are a method and apparatus used in a node for wireless communication. The method comprises: a first node sending a first message and a first signal, wherein the first message indicates a guard time length, a change in a position acquisition state of the first node triggers the sending of the first message, the change in the position acquisition state of the first node comprises at least one of loss of a positioning capability, regaining of the positioning capability, and a change in the positioning accuracy, the timing of the first signal depends on the position of the first node, and the guard time length is associated with the first signal. In the present application, the first message indicates the guard time length, thereby reducing unnecessary resource waste and improving the transmission performance.

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 schemes and apparatus for designing guard time lengths 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. As application scenarios become more diversified and new business models emerge, the demand for ubiquitous coverage is increasing daily; therefore, 6G needs to explore wireless transmission methods that guarantee coverage.

[0003] In traditional 4G and 5G systems, when a terminal fails to obtain uplink timing or its uplink timing is inaccurate, it often initiates random access to re-establish uplink timing. The PRACH (Physical Random Access Channel) design for random access typically employs CP (Cyclic Prefix) and GP (Guard Period) to combat multipath latency and transmission delay. Compared to 4G systems, 5G systems introduce more random access preamble formats to address diverse needs. Before initiating random access, the format of the random access preamble used by the terminal is determined, and consequently, the lengths of the CP and GP corresponding to that format are also fixed. Summary of the Invention

[0004] The standardization process for 5G NR systems began with Rel-17, based on NTN (non-terrestrial network). According to the applicant's research, NTN will also be a crucial 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 significantly 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 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, the coverage area of ​​satellites and aircraft is much larger than that of terrestrial networks, and the varying tilt angles between ground equipment and satellites / aircraft lead to substantial differences in latency within NTN. In existing 5G NR NTNs, user equipment (UEs) pre-compensates uplink timing based on satellite or spacecraft ephemeris information and the UE's own location. This ensures synchronized uplink transmission even with significant latency differences (or latency spreads), such as a few milliseconds or even tens of milliseconds. Therefore, stable and continuous positioning functionality is essential for 5G NR NTNs. 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 functionality (e.g., GNSS-based positioning signals may be unstable), new designs are needed to guarantee uplink synchronization in networks with large latency differences.

[0005] This application discloses a solution to the transmission synchronization problem when a node's location acquisition state 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] Send a first message and a first signal, wherein the first message indicates the length of the protection period;

[0008] The first message is sent when the location acquisition status of the first node changes. The location acquisition status change of the first node includes at least one of the following: loss of positioning capability, regain of positioning capability, and change in positioning accuracy. The timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

[0009] It should be noted that receiving (or sending) the first information block and the first signal are common expressions in the art. They respectively mean receiving (or sending) the content of the first message and sending (or receiving) or sending (or receiving) information (such as modulation symbols or bits) on the first signal. The above expressions are beneficial to maintain consistency with the general expressions in the art.

[0010] As an example, the problem to be solved by the above method includes: how to perform uplink transmission when the first node loses its positioning capability or its positioning accuracy deteriorates.

[0011] As an example, the problem to be solved by the above method includes: how to perform uplink transmission when the first node regains its positioning capability or its positioning accuracy improves.

[0012] As an example, the above method is characterized by the following: In traditional TN (Terrestrial Networks), when the positioning of the first node is inaccurate, resulting in inaccurate uplink timing, uplink timing is often regained by re-initiating random access. However, in NTN (non-terrestrial network), this method leads to resource waste and excessive latency due to excessive transmission delay and latency spread. In contrast, when the first node performs uplink timing synchronization by sending a random access preamble, the lengths of the CP and GP used in the random access preamble are determined according to the format of the preamble selected by the first node and remain unchanged.

[0013] As an example, the above method is characterized by: the first node indicating the protection time length through the first message, thereby informing the receiving end of the first signal to reserve a portion of time domain resources for the first signal sent by the first node, so as to ensure the performance of the first signal reception.

[0014] As an example, the above method is characterized by: by indicating the protection time length, the first node can flexibly adjust the protection time length according to its own determined location information, thereby avoiding the waste of uplink resources and improving spectrum efficiency.

[0015] As an example, the above method is characterized by the following: when the first signal is used for random access, the format of the random access preamble adopted by the first signal does not need to be changed to a new CP length and GP length format, thereby ensuring compatibility with existing systems.

[0016] According to one aspect of this application, the above method is characterized in that the first node assumes that its position remains unchanged after the position acquisition state changes, and the protection time length depends on the position assumed by the first node.

[0017] As an example, the above method is characterized by: the first node assuming that its own position remains unchanged, and then compensating for the timing advance (TA) between itself and the receiver of the first message based on the above assumption, so as to avoid the waste of resources caused by indicating an excessively long protection time.

[0018] As an example, the above method is characterized by: the first node assuming that its own position remains unchanged, and then compensating for the timing advance (TA) between itself and the receiver of the first message based on the above assumption; and the remaining insufficient or incorrect self-compensation is ensured by the indication of the protection time length to ensure that the transmission performance of the first signal will not be degraded due to the inaccuracy of the compensated TA.

[0019] As an example, the application scenarios of the above method include: the first node is unable to accurately estimate the change in transmission delay caused by the change in location due to inaccurate positioning or lack of positioning capability, and the first node estimates and compensates for part of the transmission delay by means of position assumption, while the remaining error part is guaranteed by the indication of the protection time interval to ensure the performance of uplink transmission.

[0020] According to one aspect of this application, the above method is characterized in that the association of the protection time length with the first signal includes: at least one of the beginning or end of the time domain resources occupied by the first signal belongs to the protection time interval corresponding to the protection time length.

[0021] As an example, the above method is characterized by: the protection time interval being dynamically indicated to the receiver of the first message, so as to inform the receiver of the first message to reasonably perform uplink scheduling and uplink reception based on the protection time interval, so as to avoid interference to the reception of the first signal caused by transmission delay.

[0022] As an example, the above method is characterized by: the protection time interval being a scheduling suggestion from the first node to the receiver of the first message, and the receiver of the first message reserving some blank resources based on the protection time interval to ensure the reception performance of the first signal.

[0023] According to one aspect of this application, the above method is characterized in that the change in the location acquisition state of the first node includes at least one of losing positioning capability or regaining positioning capability.

[0024] As an example, the above method is characterized by the fact that the protection time interval can be indicated either based on the first node losing its positioning capability or based on the first node regaining its positioning capability, so as to ensure flexibility and compatibility.

[0025] According to one aspect of this application, the method is characterized in that the change in the position acquisition state of the first node includes at least one of the following: the positioning accuracy deteriorates to the point of not satisfying the first condition or the positioning accuracy improves to the point of satisfying the first condition.

[0026] As an example, the above method is characterized by the fact that the protection time interval can be indicated either based on the first node's positioning accuracy deteriorating to the point of not meeting the first condition, or based on the first node's positioning accuracy improving to meet the first condition, so as to ensure flexibility and compatibility.

[0027] According to one aspect of this application, the above method is characterized by comprising:

[0028] Receive the first information block, which indicates ephemeris information;

[0029] The protection time length indicated by the first message depends on the ephemeris information.

[0030] As an example, the above method is characterized by: the determination of the protection time interval based on the ephemeris information to ensure the accuracy of the protection time interval.

[0031] As an example, the above method is characterized by: the first node automatically compensating for the TA between itself and the receiver of the first message based on the ephemeris information, so as to ensure the accuracy of the protection time interval and minimize the length of the protection time interval to avoid excessive resource waste.

[0032] According to one aspect of this application, the above method is characterized in that the first message carries a first indication, which is used to determine the timing advance domain after the position acquisition state change of the first node.

[0033] As an example, the above method is characterized by: the interpretation of the timing advance field after the position acquisition state change of the first node is based on the first indication carried by the first message, thereby ensuring that the indication of the timing advance field is more accurate.

[0034] As an example, the above method is characterized by: the interpretation of the timing advance domain after the position acquisition state change of the first node includes the step size, unit, or range indicated by the timing advance domain, thereby ensuring that the indication of the timing advance domain can correspond more accurately to the compensation situation of the current TA of the first node.

[0035] As an example, the features of the above method include: the first node is a user equipment.

[0036] As an example, the features of the above method include: the first node is a terminal.

[0037] As an example, the features of the above method include: the first node has GNSS (Global Navigation Satellite System) capability.

[0038] As an example, the features of the above method include: the first node has positioning capability.

[0039] As an example, the features of the above method include: the first node has satellite-based positioning capabilities.

[0040] As an example, the features of the above method include: the first node has BeiDou-based positioning capabilities.

[0041] As an example, the features of the above method include: the first node includes a Handset.

[0042] This application discloses a method for a second node in model training for wireless communication, comprising:

[0043] Receive a first message and a first signal, wherein the first message indicates the length of the protection time;

[0044] The sender of the first message includes a first node; the sending of the first message is triggered by a change in the location acquisition status of the first node, and the change in the location acquisition status of the first node includes at least one of the following three: loss of positioning capability, regain of positioning capability, and change in positioning accuracy; the timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

[0045] According to one aspect of this application, the above method is characterized in that the first node assumes that its position remains unchanged after the position acquisition state changes, and the protection time length depends on the position assumed by the first node.

[0046] According to one aspect of this application, the above method is characterized in that the association of the protection time length with the first signal includes: at least one of the beginning or end of the time domain resources occupied by the first signal belongs to the protection time interval corresponding to the protection time length.

[0047] According to one aspect of this application, the above method is characterized in that the change in the location acquisition state of the first node includes at least one of losing positioning capability or regaining positioning capability.

[0048] According to one aspect of this application, the method is characterized in that the change in the position acquisition state of the first node includes at least one of the following: the positioning accuracy deteriorates to the point of not satisfying the first condition or the positioning accuracy improves to the point of satisfying the first condition.

[0049] According to one aspect of this application, the above method is characterized by comprising:

[0050] Send the first information block, which indicates ephemeris information;

[0051] The protection time length indicated by the first message depends on the ephemeris information.

[0052] According to one aspect of this application, the above method is characterized in that the first message carries a first indication, which is used to determine the timing advance domain after the position acquisition state change of the first node.

[0053] According to one aspect of this application, the above method is characterized in that the second node is a base station.

[0054] According to one aspect of this application, the above method is characterized in that the second node includes a TRP (transmitter-receiver point).

[0055] According to one aspect of this application, the method is characterized in that the second node includes a satellite.

[0056] This application discloses a first node for wireless communication, comprising:

[0057] The first transmitter sends a first message and a first signal, wherein the first message indicates the length of the protection time.

[0058] The first message is sent when the location acquisition status of the first node changes. The location acquisition status change of the first node includes at least one of the following: loss of positioning capability, regain of positioning capability, and change in positioning accuracy. The timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

[0059] This application discloses a second node for wireless communication, characterized in that it comprises:

[0060] The second receiver receives the first message and the first signal, wherein the first message indicates the length of the protection time.

[0061] The sender of the first message includes a first node; the sending of the first message is triggered by a change in the location acquisition status of the first node, and the change in the location acquisition status of the first node includes at least one of the following three: loss of positioning capability, regain of positioning capability, and change in positioning accuracy; the timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

[0062] As an example, compared with conventional solutions, this application has the following advantages, but is not limited to:

[0063] The first node indicates the length of the protection time through the first message, thereby informing the receiver of the first signal to reserve a portion of time domain resources for the first signal sent by the first node, so as to ensure the performance of uplink reception.

[0064] By indicating the protection time length, the first node can flexibly adjust the protection time length according to its own determined location information, thereby avoiding the waste of uplink resources and improving spectrum efficiency.

[0065] When the first signal is used for random access, the format of the random access preamble used by the first signal does not need to be changed to a new CP length and GP length format, thereby ensuring compatibility with existing systems. Attached Figure Description

[0066] 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:

[0067] Figure 1 illustrates a flowchart of a first message and a first signal according to an embodiment of this application;

[0068] Figure 2 shows a schematic diagram of a network architecture according to an embodiment of this application;

[0069] 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;

[0070] Figure 4 shows a schematic diagram of a first node and a second node according to an embodiment of this application;

[0071] Figure 5 shows a flowchart of wireless signal transmission according to an embodiment of this application;

[0072] Figure 6 shows a flowchart of a first information block according to an embodiment of this application;

[0073] Figure 7 shows a schematic diagram of the protection time length according to an embodiment of this application;

[0074] Figure 8 shows a schematic diagram of the protection time length according to another embodiment of this application;

[0075] Figure 9 shows a schematic diagram of the first message and first information according to this application;

[0076] Figure 10 shows a structural block diagram of a processing apparatus in a first node according to an embodiment of the present application;

[0077] Figure 11 shows a structural block diagram of a processing apparatus in a second node according to an embodiment of this application; Detailed Implementation

[0078] 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.

[0079] Example 1

[0080] Example 1 illustrates a flowchart 100 of a first information block, a first signal, and a first report according to an embodiment of this application, as shown in Figure 1.

[0081] In step 101, the first node sends a first message and a first signal, wherein the first message indicates the length of the protection time.

[0082] In Embodiment 1, the change in the location acquisition state of the first node triggers the sending of the first message. The change in the location acquisition state of the first node includes at least one of the following three: loss of positioning capability, regain of positioning capability, and change in positioning accuracy. The timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

[0083] As an example, the first node is in RRC (Radio Resource Control) connected state (RRC_CONNECTED).

[0084] As an example, the first node is in an RRC inactive state (RRC_INACTIVE).

[0085] As an example, the first message is transmitted via RRC signaling.

[0086] As an example, the first message is transmitted via MAC (Medium Access Control) CE (Control Elements).

[0087] As an example, the first message is transmitted via UCI (Uplink Control Information).

[0088] As an example, the physical layer channel occupied by the first message includes PUCCH (Physical Uplink Control Channel).

[0089] As an example, the physical layer channel occupied by the first message includes PUSCH (Physical Uplink Shared Channel).

[0090] As an example, the physical layer channel occupied by the first message includes PRACH.

[0091] As an example, the transmission channel occupied by the first message includes UL-SCH (Uplink Shared Channel).

[0092] As an example, the first message explicitly indicates the length of the protection time.

[0093] As an example, the first message implicitly indicates the length of the protection period.

[0094] As an example, the first message directly indicates the length of the protection time.

[0095] As an example, the first message indirectly indicates the length of the protection time.

[0096] As an example, the fields included in the first message indicate the length of the protection period.

[0097] As an example, at least one of the time-domain resources or frequency-domain resources occupied by the first message is used to determine the length of the protection time.

[0098] As an example, the code field resources used in the first message are used to determine the protection time length.

[0099] As an example, the sequence of the first message is used to determine the length of the protection time.

[0100] As an example, the unit of the protection time length includes milliseconds.

[0101] As one example, the unit of the protection time includes microseconds.

[0102] As an example, the protection time length is for a positive integer number of sampling times greater than 1.

[0103] As an example, the protection time length is for a positive integer number of T greater than 1. S .

[0104] As a sub-implementation of this embodiment, the T S The corresponding time length is fixed.

[0105] As a sub-implementation of this embodiment, the T S The corresponding time length is predefined.

[0106] As a sub-implementation of this embodiment, the T S The corresponding time length is configurable.

[0107] As an example, the protection time length is for a positive integer number of T greater than 1. C .

[0108] As one embodiment, the protection time length is in T C The quantity is represented by T, where T C = 1 / (480000*4096) seconds.

[0109] As an example, the protection time length is T S The quantity is represented by T, where T S = 1 / (15000*2048) seconds.

[0110] As an example, the protection time length is used to protect the transmission of the first signal in the time domain.

[0111] As an example, the protection time is reserved for CP.

[0112] As an example, the protection time length is reserved for GP.

[0113] As an example, the receiver of the first signal does not perform uplink scheduling in the time domain resources corresponding to the protection time length.

[0114] As an example, the location acquisition state changes of the first node include: losing positioning capability, regaining positioning capability, and changes in positioning accuracy.

[0115] As one embodiment, the change in the location acquisition state of the first node includes: loss of positioning capability.

[0116] As an example, the change in the location acquisition state of the first node includes: regaining the ability to locate.

[0117] As an example, the change in the position acquisition state of the first node includes: a change in positioning accuracy.

[0118] As an example, the change in the location acquisition state of the first node includes: GNSS available to GNSS unavailable.

[0119] As an example, the change in the location acquisition state of the first node includes: changing from having GNSS-based positioning capability to losing GNSS-based positioning capability.

[0120] As an example, the positioning capability described in this application includes: GNSS-based positioning capability.

[0121] As an example, the positioning capability described in this application includes: BeiDou-based positioning capability.

[0122] As an example, the positioning capability described in this application includes: Starlink-based positioning capability.

[0123] As an example, the positioning capability described in this application includes: satellite-based positioning capability.

[0124] As one example, the timing of the first signal depends on the location of the recipient of the first message.

[0125] As an example, the first signal is a physical layer signal.

[0126] As an example, the first signal is a physical layer channel.

[0127] As an example, the first signal is a baseband signal or a radio frequency signal.

[0128] As an example, the first signal is an uplink (UL) transmission.

[0129] As an example, the first signal is PRACH.

[0130] As an example, the first signal is PUSCH.

[0131] As one embodiment, the first signal includes PUSCH and demodulation reference signal (DMRS).

[0132] As an example, the first signal is SRS (Sound Reference Signal).

[0133] As an example, the first signal is PUCCH.

[0134] As one embodiment, the first signal includes PUCCH and demodulation reference signal (DMRS).

[0135] As one embodiment, the first signal is a signal transmitted in a non-terrestrial network (NTN).

[0136] As an example, the first signal is a signal that supports transmission via satellite or aircraft.

[0137] As an example, the first signal is used in the random access procedure.

[0138] As an example, the first signal is used in the LTM (L1 / L2-triggered mobility) process.

[0139] As an example, the first signal is used to trigger the random access procedure of LTM.

[0140] As an example, the timing of the first signal is the timing of its transmission.

[0141] As an example, the timing of the first signal is the timing advance (TA) of the first signal.

[0142] 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.

[0143] 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.

[0144] 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.

[0145] As an example, the timing of the first signal is T of the first signal. TA value.

[0146] As an example, the timing of the first signal is a pre-compensation value in the timing advance of the first signal.

[0147] 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.

[0148] As an example, the timing of the first signal is the boundary moment of the frame when the first signal is sent.

[0149] As an example, the location of the first node is the geographical location of the first node.

[0150] As one example, the location of the first node is its surface location.

[0151] As an example, the location of the first node is its geographic coordinates.

[0152] As an example, the location of the first node is its WGS84-based geographic coordinates.

[0153] As an example, the location of the first node is the latitude and longitude of the first node.

[0154] As an example, the position of the first node is the longitude and latitude distance between the first node's location and a reference geographical location.

[0155] As an example, the position of the first node is the position obtained by the first node itself through self-positioning.

[0156] 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).

[0157] As an example, the positioning method used by the first node is implemented in a manner that is not defined by the standard.

[0158] As an example, the first node implements the determination of the protection time length, which is not defined in the standard.

[0159] As an example, the first node determines the timing of the first signal based on the position of the first node.

[0160] As an example, the first node determines the timing of the first signal based on the assumed position of the first node.

[0161] As a sub-implementation of this embodiment, the first node determines the transmission delay between the first node and the second node in this application based on the assumed position of the first node, and then determines the timing of the first signal.

[0162] As a sub-implementation of this embodiment, the first node determines the RTT (Round Trip Time) between the first node and the second node in this application based on the assumed position of the first node, and then determines the timing of the first signal.

[0163] As one embodiment, the protection time length associated with the first signal includes: the protection time length is for uplink transmission, and the first signal is uplink transmission.

[0164] As one embodiment, the protection time length associated with the first signal includes: the protection time length being used for uplink transmission scheduling, where the first signal is an uplink transmission.

[0165] As one embodiment, the association between the protection time length and the first signal includes: the time domain resources occupied by the first signal are protected by the protection time interval corresponding to the protection time length both before and after it.

[0166] As one embodiment, the association of the protection time length with the first signal includes: the latter part of the time domain resources occupied by the first signal is protected by the protection time interval corresponding to the protection time length.

[0167] As an example, the first node is able to obtain a valid location before sending the first signal.

[0168] As an example, the first node is able to obtain its position based on GNSS before sending the first signal.

[0169] As an example, the first node can obtain a valid position based on GNSS before sending the first signal.

[0170] As an example, the candidates for the location acquisition state change include multiple location acquisition state changes, which include at least one of the following three: loss of positioning capability, regain of positioning capability, and change in positioning accuracy.

[0171] Example 2

[0172] 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.

[0173] As an example, the UE201 corresponds to the first node in this application.

[0174] As an example, the UE201 supports large latency difference network communication (e.g., NTN).

[0175] As an example, the network node 203 corresponds to the second node in this application.

[0176] As one embodiment, the network node 203 supports large latency difference network communication (e.g., NTN).

[0177] As an example, node B 203 is a macrocell base station.

[0178] As an example, node B 203 is a microcell base station.

[0179] As an example, node B 203 is a pico cell base station.

[0180] As an example, node B 203 is a femtocell.

[0181] As an example, node B 203 is a base station device that supports large latency differences.

[0182] As an example, node B 203 is a flight platform device.

[0183] As an example, node B 203 is a satellite device.

[0184] As one embodiment, the node B 203 is a test device (e.g., a transceiver device simulating part of the functions of a base station, a signaling tester).

[0185] As an example, the UE 201 includes a mobile phone.

[0186] As an example, the UE 201 is a vehicle including a car.

[0187] As an example, the wireless link from the UE 201 to the node B 203 is an uplink, which is used to perform uplink transmissions.

[0188] As an example, the radio link from the node B 203 to the UE 201 is a downlink, which is used to perform downlink transmissions.

[0189] As an example, the wireless link between the node B 203 and the UE 201 includes a cellular link.

[0190] As an example, the node B 203 and the UE 201 are connected via the Uu air interface.

[0191] As an example, the node B 203 supports the deployment of network-side (NW-side) AI / ML models.

[0192] As an example, the UE 201 supports the deployment of UE-side AI / ML models.

[0193] As an example, the UE 201 supports a 5G system.

[0194] As an example, the node B 203 supports a 5G system.

[0195] As an example, the UE 201 supports at least a 6G system.

[0196] As an example, the node B 203 supports at least a 6G system.

[0197] As an example, the sender of the first message in this application includes the UE 201.

[0198] As an example, the recipient of the first message in this application includes the node B 203.

[0199] As an example, the sender of the first signal in this application includes the UE 201.

[0200] As an example, the receiver of the first signal in this application includes the node B 203.

[0201] As an example, the sender of the first information block in this application includes the node B 203.

[0202] As an example, the recipient of the first information block in this application includes the UE 201.

[0203] Example 3

[0204] 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.).

[0205] As an example, the wireless protocol architecture in Figure 3 is applicable to the first node in this application.

[0206] As an example, the wireless protocol architecture in Figure 3 is applicable to the second node in this application.

[0207] As an example, in this application, the first message is generated by MAC302 or MAC352.

[0208] As an example, in this application, the first message is generated in the RRC306.

[0209] As an example, in this application, the first message is generated in the core network above the RRC306.

[0210] As an example, in this application, the first signal is generated in the PHY301 or PHY351.

[0211] As an example, in this application, the first signal is generated by MAC302 or MAC352.

[0212] As an example, in this application, the first signal is generated in the RRC306.

[0213] As an example, in this application, the first signal is generated in the core network above the RRC306.

[0214] As an example, in this application, the first information block is generated in the RRC306.

[0215] As an example, in this application, the first information block is generated in the core network above the RRC306.

[0216] Example 4

[0217] 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.

[0218] 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.

[0219] 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.

[0220] 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.

[0221] 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 the higher-layer information carried by the first signal in this application and the first report) 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 controller / processor 440 implements L2 layer functions, including interpreting the higher-layer information (including the higher-layer information carried by the first signal in this application and the first report). The controller / processor may be associated with memory 430, which stores program code and data. Memory 430 may be computer-readable media.

[0222] 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: sends a first message and a first signal, the first message indicating a protection time length; the transmission of the first message is triggered by a change in the location acquisition state of the first node, the change in the location acquisition state of the first node including at least one of the following three: loss of positioning capability, regain of positioning capability, and change in positioning accuracy; the timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

[0223] As one embodiment, the first node 450 device includes: a memory storing a computer-readable instruction program that generates actions when executed by at least one processor, the actions including: sending a first message and a first signal, the first message indicating a protection time length; the transmission of the first message being triggered by a change in the location acquisition state of the first node, the change in the location acquisition state of the first node including at least one of losing positioning capability, regaining positioning capability, and a change in positioning accuracy; the timing of the first signal depending on the location of the first node, and the protection time length being associated with the first signal.

[0224] 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: receives a first message and a first signal, the first message indicating a protection time length; the sender of the first message includes a first node; the transmission of the first message is triggered by a change in the location acquisition state of the first node, the change in the location acquisition state of the first node including at least one of loss of positioning capability, regain of positioning capability, and change in positioning accuracy; the timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

[0225] As one embodiment, the second node 410 includes: a memory storing a computer-readable instruction program that generates actions when executed by at least one processor, the actions including: receiving a first message and a first signal, the first message indicating a protection time length; the sender of the first message including a first node; the transmission of the first message being triggered by a change in the location acquisition state of the first node, the change in the location acquisition state of the first node including at least one of losing positioning capability, regaining positioning capability, and a change in positioning accuracy; the timing of the first signal depending on the location of the first node, and the protection time length being associated with the first signal.

[0226] As an example, the first node 450 is a user equipment (UE).

[0227] As an example, the first node 450 is a user equipment that supports large latency difference network communication (e.g., NTN).

[0228] As one embodiment, the second node 410 is a base station device (gNB / eNB).

[0229] As an example, the second node 410 is a base station device for large latency difference network communication (e.g., NTN).

[0230] As an example, at least one of {the antenna 452, the transmitter 454, the transmitter processor 468, the multi-antenna transmitter processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to transmit the first message and the first signal; at least one of {the antenna 420, the receiver 418, the receiver processor 470, the multi-antenna receiver processor 472, the controller / processor 475, and the memory 476} is used to receive the first message and the first signal.

[0231] As an example, at least one of {the antenna 420, the transmitter 418, the transmitter processor 416, the multi-antenna transmitter processor 471, the controller / processor 475, and the memory 476} is used to transmit the first information block; at least one of {the antenna 452, the receiver 454, the receiver processor 456, the multi-antenna receiver processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first information block.

[0232] Example 5

[0233] Example 5 illustrates a flowchart of a transmission between a first node and a second node according to an embodiment of this application, as shown in Figure 5. In Figure 5, the first node U1 and the second node N2 communicate via a wireless link.

[0234] For the first node U1, a first message and a first signal are sent in step S510.

[0235] For the second node N2, the first message and the first signal are received in step S520.

[0236] In Embodiment 5, the first message indicates the length of the protection period; the change in the location acquisition status of the first node triggers the sending of the first message, and the change in the location acquisition status of the first node includes at least one of the following three: loss of positioning capability, regain of positioning capability, and change in positioning accuracy; the timing of the first signal depends on the location of the first node, and the length of the protection period is associated with the first signal.

[0237] As an example, the first node U1 is the first node in this application.

[0238] As an example, the second node N2 is the second node in this application.

[0239] As an example, the first node U1 does not have positioning capabilities.

[0240] Typically, the first node assumes that its position remains unchanged after acquiring a positional state change, and the protection time depends on the assumed position of the first node.

[0241] As an example, by assuming that the position remains unchanged after the position 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, which improves uplink reception performance and reduces the possibility of collisions caused by timing inconsistency.

[0242] As an example, the assumption that the position remains unchanged after the first node acquires the position state change means that one of the K1 assumptions that the position remains unchanged remains unchanged.

[0243] As a sub-example of this embodiment, K1 is equal to 2.

[0244] As a sub-example of this embodiment, K1 equals 3.

[0245] As a sub-implementation of this embodiment, the K1 assumption that the position remains unchanged includes: assuming that the position of the first node remains unchanged.

[0246] As a sub-example of this embodiment, the K1 assumption that the positions remain unchanged includes: assuming that the position of the first node and the position of the receiver of the first message remain unchanged.

[0247] As a sub-implementation of this embodiment, the K1 assumption that the position remains unchanged includes: assuming that the position of the recipient of the first message remains unchanged.

[0248] As a sub-example of this embodiment, the first node assumes that its position remains unchanged after the position acquisition state changes. Which of the K1 assumptions that the position remains unchanged is used to determine the length of the protection time.

[0249] As one embodiment, the protection duration depends on the assumed position of the first node.

[0250] As one embodiment, the protection time length depends on the assumed position of the first node remaining constant.

[0251] As an example, the position assumed by the first node after obtaining a state change at the position is the same as the latest valid position before obtaining a state change at the position.

[0252] Typically, the association of the protection time length with the first signal means that at least one of the beginning or end of the time domain resources occupied by the first signal belongs to the protection time interval corresponding to the protection time length.

[0253] As an example, the association between the protection time length and the first signal means that the latter part of the time domain resources occupied by the first signal belongs to the protection time interval corresponding to the protection time length.

[0254] As an example, the association between the protection time length and the first signal means that the beginning and end of the time domain resources occupied by the first signal belong to the protection time interval corresponding to the protection time length.

[0255] As an example, the first node assumes that the recipient of the first message does not schedule uplink transmissions during the protection time interval corresponding to the protection time length.

[0256] As an example, the first node assumes that the recipient of the first message does not receive uplink signals other than the first signal during the protection time interval corresponding to the protection time length.

[0257] As an example, the time-domain resources in the protection time interval corresponding to the protection time length are reserved for the reception of the first signal.

[0258] As an example, the recipient of the first message can determine the time-domain resources occupied by the first signal after receiving the first message.

[0259] As a sub-example of this embodiment, the time-domain resources occupied by the first signal as determined by the recipient of the first message include the time-domain resources actually occupied by the first signal plus the protection time interval corresponding to the protection time length.

[0260] Typically, the change in the location acquisition state of the first node includes at least one of losing the ability to locate or regaining the ability to locate.

[0261] As one example, the change in the location acquisition state of the first node includes the loss of positioning capability.

[0262] As one embodiment, the change in the location acquisition state of the first node includes regaining the ability to locate.

[0263] As an example, the change in the location acquisition state of the first node includes losing the ability to locate and regaining the ability to locate.

[0264] Typically, the change in the location acquisition state of the first node includes at least one of the following: the positioning accuracy deteriorates to the point where it does not meet the first condition, or the positioning accuracy improves to the point where it meets the first condition.

[0265] As an example, the change in the position acquisition state of the first node includes a decrease in positioning accuracy to the point that the first condition is no longer met.

[0266] As an example, the change in the position acquisition state of the first node includes an improvement in positioning accuracy to the point that a first condition is met.

[0267] As an example, the change in the location acquisition state of the first node includes at least one of the following: the positioning accuracy deteriorates to the point of not meeting the first condition, and the positioning accuracy improves to the point of meeting the first condition.

[0268] As an example, the first condition is predefined.

[0269] As an example, the first condition is configurable.

[0270] As one embodiment, the first condition includes a first threshold, and the positioning accuracy deteriorating to the point of not meeting the first condition includes the positioning accuracy being lower than the first threshold.

[0271] As one embodiment, the first condition includes a first threshold, and the positioning accuracy improving to the point that the first condition is met includes the positioning accuracy not being lower than the first threshold.

[0272] Example 6

[0273] Example 6 illustrates a flowchart of the transmission of a first information block according to an embodiment of this application, as shown in Figure 6. In Figure 6, the first node U3 and the second node N4 communicate via a wireless link.

[0274] For the first node U3, the first information block is sent in step S610.

[0275] For the second node N4, the first information block is received in step S620.

[0276] In Embodiment 6, the protection duration indicated by the first message depends on the ephemeris information.

[0277] As one embodiment, the first information block is transmitted via an air interface or a wireless interface.

[0278] As one embodiment, the first information block includes all or part of a higher-layer signaling or a physical-layer signaling.

[0279] 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.

[0280] As one example, the first information block is cell-specific.

[0281] As one example, the first information block is UE-specific.

[0282] As one embodiment, the first information block is UE group specific.

[0283] 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).

[0284] As one embodiment, the first information block includes part or all of the system information block (SIB).

[0285] As one embodiment, the first information block includes all or part of the fields in the IE (Information Element) "ntn-Config".

[0286] As an example, the first information block includes all or part of the fields in the IE (Information Element) "EphemerisInfo".

[0287] As an example, the first information block includes all or part of the fields in the IE (Information Element) "PositionVelocity".

[0288] As one embodiment, the first information block includes all or part of the fields in the IE (Information Element) "Orbital".

[0289] As an example, the first information block is transmitted via PDCCH (Physical Downlink Control Channel).

[0290] As one embodiment, the first information block includes all or part of a DCI (Downlink Control Information) field.

[0291] As an example, the first information block includes all or part of the RAR (Random Access Response).

[0292] As one embodiment, the first information block includes all or part of Msg2 (message 2) in the random access process.

[0293] As one embodiment, the first information block includes all or part of the MsgB (message B) in the random access process.

[0294] As an example, transmitting the first information block via higher-level signaling can reduce signaling overhead and provide more detailed ephemeris information.

[0295] As an example, transmitting the first information block via physical layer signaling can adapt to changes in ephemeris more quickly and provide greater flexibility.

[0296] 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.

[0297] As one example, the ephemeris information includes the ephemeris of a satellite or spacecraft.

[0298] As one example, the ephemeris information includes the orbital information of a satellite or spacecraft.

[0299] As one example, the ephemeris information includes the speed and position information of the satellite or spacecraft.

[0300] As one example, the ephemeris information includes the motion trajectory information of satellites or spacecraft.

[0301] As one example, the ephemeris information includes the type or kind of satellite or spacecraft.

[0302] As one embodiment, 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.

[0303] As one embodiment, the first information block indicating ephemeris information includes: the first information block indicating at least a portion of the ephemeris information.

[0304] As one embodiment, the first information block indicating ephemeris information includes: the first information block includes at least a portion of the ephemeris information.

[0305] As one embodiment, the first information block indicating ephemeris information includes: the first information block indicating the quantized value of the ephemeris table.

[0306] 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.

[0307] As an example, the first node implements the determination of the protection time length based on the ephemeris information.

[0308] As an example, the first node determines the position of the second node based on ephemeris information, and determines the TA from the second node to the first node based on the position of the second node and performs uplink timing adjustment. The protection time length is used to compensate for the error after the uplink timing adjustment.

[0309] As an example, the timing of the first signal is related to the ephemeris information and the position of the first node.

[0310] As an example, the ephemeris information and the position of the first node are both used to determine or calculate the timing of the first signal.

[0311] As an example, the timing of the first signal depends on the ephemeris information and the position of the first node when sending the first signal.

[0312] As an example, the timing of the first signal depends on the ephemeris information and the latest position obtained by the first node before sending the first signal.

[0313] As an example, the timing of the first signal depends on the ephemeris information and the latest valid GNSS-based position obtained by the first node before transmitting the first signal.

[0314] As an example, the timing of the first signal depends on the ephemeris information and the position maintained by the first node when transmitting the first signal.

[0315] As an example, the timing of the first signal depends on the ephemeris information and the position maintained by the first node before sending the first signal.

[0316] As an example, the timing of the first signal depends on the ephemeris information and the current position of the first node.

[0317] As an example, the timing advance value of the first signal depends on the ephemeris information and the position of the first node.

[0318] As an example, the value of at least one parameter used to calculate the timing advance value of the first signal depends on the ephemeris information and the position of the first node.

[0319] As an example, the value of at least one parameter used in the timing advance value of the first signal depends on the ephemeris information and the position of the first node.

[0320] As an example, 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.

[0321] As an example, the pre-compensation value calculated by the user equipment for the timing advance value of the first signal depends on the ephemeris information and the position of the first node.

[0322] As an example, the timing advance value of the first signal is equal to T. TA T TA The determination of is based on the following formula:

[0323] Where, N TA It is the value indicated by the timed advance 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 position of the first node, T c It is a fixed time unit.

[0324] As an example, the timing advance value of the first signal is linearly correlated with the timing advance compensation value calculated based on the ephemeris information and the position of the first node.

[0325] As an example, the timing advance value of the first signal is linearly correlated with the timing advance adjustment value calculated based on the ephemeris information and the position of the first node.

[0326] As an example, the timing advance value and the timing advance adjustment value of the first signal are linearly related, and the timing advance modulation value is equal to the first distance value divided by the speed of light. The first distance value is calculated based on the ephemeris information and the position of the first node.

[0327] As an example, the timing advance value and the timing advance adjustment value of the first signal are linearly related. The timing advance adjustment value is equal to the first distance value divided by the speed of light. The first distance value is calculated together with the current satellite position obtained from the ephemeris information and the position of the first node.

[0328] As an example, 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. 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.

[0329] As an example, the pre-compensation value of the timing advance value of the first signal depends on the ephemeris information, and the protection time length depends on the pre-compensation value of the timing advance value.

[0330] As an example, the pre-compensation value of the timing advance value of the first signal depends on the ephemeris information, and the first node determines the protection time length under the condition that the position of the first node remains unchanged, and the protection time length depends on the pre-compensation value of the timing advance value.

[0331] As one embodiment, the length of the protection time indicated by the first message depends on the timing advance value of the first signal.

[0332] As a sub-example of this embodiment, the protection time length indicated by the first message includes the timing advance value of the first signal.

[0333] As a sub-example of this embodiment, the length of the protection time indicated by the first message depends on the difference between the timing advance value of the first signal and twice the transmission delay from the first node to the second node.

[0334] As a sub-example of this embodiment, the protection time length indicated by the first message depends on the difference between the timing advance value of the first signal assumed by the first node and the actual TA from the first node to the second node.

[0335] As an example, step S610 is located before step S510 in Example 5.

[0336] As an example, step S620 is located before step S510 in Example 5.

[0337] Example 7

[0338] Example 7 illustrates a schematic diagram of the protection time length according to an embodiment of this application, as shown in Figure 7. In Figure 7, the protection time length is located in the time domain after the time domain resources occupied by the first signal.

[0339] As an example, the first signal includes only the CP in CP and GP, and the CP is located at the beginning of the first signal, while the protection time length is located after the first signal.

[0340] As one embodiment, the first signal includes both CP and GP, with CP located at the beginning of the first signal and GP located at the end of the first signal, and the protection time length located after GP.

[0341] As an example, the second node in this application is assumed not to receive uplink transmission signals from nodes other than the first node during the protection time period.

[0342] Example 8

[0343] Example 8 illustrates a schematic diagram of the protection time length according to an embodiment of this application, as shown in Figure 8. In Figure 8, the protection time length in the time domain includes a first protection portion and a second protection portion, wherein the first protection portion is located before the occupied time domain resources, and the second protection portion is located after the occupied time domain resources.

[0344] As an example, the first signal includes only the CP in CP and GP, and the CP is located at the beginning of the first signal.

[0345] As one embodiment, the first signal includes both CP and GP, with CP located at the beginning of the first signal and GP located at the end of the first signal. The first protection portion is located before the CP, and the second protection portion is located after the GP.

[0346] As an example, the second node in this application is assumed not to receive uplink transmission signals from nodes other than the first node during the protection time period.

[0347] Example 9

[0348] Example 9 illustrates a schematic diagram of a first message and first information according to an embodiment of this application, as shown in Figure 9. In Figure 9, the first message indicates the protection time length used for the transmission of the first signal.

[0349] Typically, the first message carries a first indication, which is used to determine the timing advance domain after the position acquisition state change of the first node.

[0350] As an example, the value of the protection time length is one of a plurality of candidate values, and the first indication is used to indicate the candidate value corresponding to the protection time length from the plurality of candidate values.

[0351] As an example, the timing advance field is the TimingAdvance Command field in MAC CE.

[0352] As an example, the value of the timing advance field received by the first node is equal to T. A The uplink transmission of the first node uses N for time alignment. TA Value and T A The product of M and M is linearly related, and the first indication carried in the first message is used to determine the value of M, where M is a positive integer greater than 1.

[0353] As a sub-implementation of this embodiment, the N TA equal to T A ·M / 2 μ , where μ depends on the SCS of the first signal.

[0354] As a sub-implementation of this embodiment, the N TA equals N TA_old +T A ·M / 2 μ Where μ depends on the SCS of the first signal, N TA_old It is the timing advance value determined before the timing advance value is received.

[0355] Typically, the first message indicates the length of the protection period.

[0356] As an example, a field in the first message indicates the length of the protection time.

[0357] As an example, the sequence of the first message indicates the length of the protection time.

[0358] As an example, the air interface resources occupied by the first message indicate the length of the protection time.

[0359] As a sub-implementation of this embodiment, the air interface resources include time domain resources.

[0360] As a sub-implementation of this embodiment, the air interface resources include frequency domain resources.

[0361] As a sub-implementation of this embodiment, the air interface resources include time and frequency resources.

[0362] As a sub-implementation of this embodiment, the air interface resources include code field resources.

[0363] As a sub-implementation of this embodiment, the air interface resource is the resource pool or resource set occupied by the first message.

[0364] As an example, the first message and the first signal are orthogonal in the time domain.

[0365] As an example, the CP length and GP length used in the first message are predefined.

[0366] As an example, the CP length and GP length used in the first message are fixed.

[0367] As an example, the first message and the first signal are the preamble and PUSCH in message A, respectively.

[0368] Example 10

[0369] Example 10 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of the present application, as shown in Figure 10. In Figure 10, the processing apparatus 1000 in the first node includes a first receiver 1001 and a first transmitter 1002.

[0370] The first transmitter 1002 sends a first message and a first signal, wherein the first message indicates the length of the protection time;

[0371] In Example 10, the change in the location acquisition status of the first node triggers the sending of the first message. The change in the location acquisition status of the first node includes at least one of the following: loss of positioning capability, regain of positioning capability, and change in positioning accuracy. The timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

[0372] As an example, the first node assumes that its position remains unchanged after acquiring a positional state change, and the protection time length depends on the assumed position of the first node.

[0373] As an example, the association between the protection time length and the first signal means that at least one of the beginning or end of the time domain resources occupied by the first signal belongs to the protection time interval corresponding to the protection time length.

[0374] As an example, the change in the location acquisition state of the first node includes at least one of losing positioning capability or regaining positioning capability.

[0375] As an example, the change in the location acquisition state of the first node includes at least one of the following: the positioning accuracy deteriorates to the point of not meeting the first condition or the positioning accuracy improves to the point of meeting the first condition.

[0376] As one embodiment, the first node includes:

[0377] The first receiver 1001 receives a first information block, which indicates ephemeris information;

[0378] The protection time length indicated by the first message depends on the ephemeris information.

[0379] As one embodiment, the first message carries a first indication, which is used to determine the timing advance domain after the position acquisition state change of the first node.

[0380] As an example, the first node 1000 is a user equipment.

[0381] As an example, the first node 1000 is a Handset.

[0382] As an example, the first node 1000 is a terminal.

[0383] As an example, the first receiver 1001 includes at least one of the following in embodiment 4: the antenna 452, the receiver 454, the receiver processor 456, the multi-antenna receiver processor 458, the controller / processor 459, the memory 460, and the data source 467.

[0384] As an example, the first transmitter 1002 includes at least one of the following in embodiment 4: the antenna 452, the transmitter 454, the transmission processor 468, the multi-antenna transmission processor 457, the controller / processor 459, the memory 460, and the data source 467.

[0385] Example 11

[0386] Example 11 illustrates a structural block diagram of a processing apparatus for a second node according to an embodiment of the present application, as shown in Figure 11. In Figure 11, the processing apparatus 1100 in the second node includes a second transmitter 1101 and a second receiver 1102.

[0387] The second receiver 1102 receives a first message and a first signal, wherein the first message indicates the length of the protection time.

[0388] In Example 11, the sender of the first message includes a first node; the change in the location acquisition state of the first node triggers the sending of the first message, and the change in the location acquisition state of the first node includes at least one of the following three: loss of positioning capability, regain of positioning capability, and change in positioning accuracy; the timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

[0389] As an example, the first node assumes that its position remains unchanged after acquiring a positional state change, and the protection time length depends on the assumed position of the first node.

[0390] As an example, the association between the protection time length and the first signal means that at least one of the beginning or end of the time domain resources occupied by the first signal belongs to the protection time interval corresponding to the protection time length.

[0391] As an example, the change in the location acquisition state of the first node includes at least one of losing positioning capability or regaining positioning capability.

[0392] As an example, the change in the location acquisition state of the first node includes at least one of the following: the positioning accuracy deteriorates to the point of not meeting the first condition or the positioning accuracy improves to the point of meeting the first condition.

[0393] As one embodiment, the first node includes:

[0394] The second transmitter 1101 transmits a first information block, which indicates ephemeris information;

[0395] The protection time length indicated by the first message depends on the ephemeris information.

[0396] As one embodiment, the first message carries a first indication, which is used to determine the timing advance domain after the position acquisition state change of the first node.

[0397] As one embodiment, the second node 1100 is a base station device.

[0398] As one embodiment, the second node 1100 is a user equipment.

[0399] As an example, the second node 1100 is a TRP.

[0400] As one embodiment, the second node 1100 includes a satellite.

[0401] As an example, the second transmitter 1101 includes at least one of the following in embodiment 4: the antenna 420, the transmitter 418, the transmission processor 416, the multi-antenna transmission processor 471, the controller / processor 475, and the memory 476.

[0402] As one embodiment, the second receiver 1102 includes at least one of the following in embodiment 4: the antenna 420, the receiver 418, the receiver processor 470, the multi-antenna receiver processor 472, the controller / processor 475, and the memory 476.

[0403] 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.

[0404] 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: The first transmitter sends a first message and a first signal, wherein the first message indicates the length of the protection time. The first message is sent when the location acquisition status of the first node changes. The location acquisition status change of the first node includes at least one of the following: loss of positioning capability, regain of positioning capability, and change in positioning accuracy. The timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

2. The first node of claim 1, characterized in that, After the first node acquires a change in its position, it assumes that its position remains unchanged, and the protection time depends on the position assumed by the first node.

3. The first node of claim 1 or 2, wherein, The association between the protection time length and the first signal means that at least one of the front or back portions of the time domain resources occupied by the first signal belongs to the protection time interval corresponding to the protection time length.

4. The first node of any of claims 1 to 3, wherein, The change in the location acquisition state of the first node includes at least one of losing the ability to locate or regaining the ability to locate.

5. The first node of any of claims 1 to 4, wherein, The change in the location acquisition state of the first node includes at least one of the following: the positioning accuracy deteriorates to the point of not meeting the first condition or the positioning accuracy improves to the point of meeting the first condition.

6. The first node of any of claims 1 to 5, wherein, include: A first receiver receives a first information block, which indicates ephemeris information. The protection time length indicated by the first message depends on the ephemeris information.

7. The first node of any of claims 1-6, wherein, The first message carries a first indication, which is used to determine the timing advance domain after the position acquisition state change of the first node. 8.A second node for wireless communication, comprising: include: The second receiver receives the first message and the first signal, wherein the first message indicates the length of the protection time. The sender of the first message includes a first node; the sending of the first message is triggered by a change in the location acquisition status of the first node, and the change in the location acquisition status of the first node includes at least one of the following three: loss of positioning capability, regain of positioning capability, and change in positioning accuracy; the timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

9. A method for use in a first node in wireless communication, the method comprising include: Send a first message and a first signal, wherein the first message indicates the length of the protection period; The first message is sent when the location acquisition status of the first node changes. The location acquisition status change of the first node includes at least one of the following: loss of positioning capability, regain of positioning capability, and change in positioning accuracy. The timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

10. A method for use in a second node in wireless communication, characterized by include: Receive a first message and a first signal, wherein the first message indicates the length of the protection time; The sender of the first message includes a first node; the sending of the first message is triggered by a change in the location acquisition status of the first node, and the change in the location acquisition status of the first node includes at least one of the following three: loss of positioning capability, regain of positioning capability, and change in positioning accuracy; the timing of the first signal depends on the location of the first node, and the protection time length is associated with the first signal.

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