Wireless communication method and device

Abstract

The embodiments of the present application provide a wireless communication method and device. The method includes: determining at least one time calibration quantity, the at least one time calibration quantity being a calibration quantity for configuring the SMTC time window offset for measuring the synchronization signal or physical broadcast channel block timing; and sending the at least one time calibration quantity to the terminal. Through the at least one time calibration quantity, the measurement windows of different SMTCs can be aligned as much as possible, so that the measurement interval can cover as many measurement windows of different SMTCs as possible. Accordingly, not only can the throughput loss be reduced, but also the efficiency of mobility switching can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and more specifically, to a wireless communication method and device. Background Art

[0002] In the Rel-15 / 16NR system, the network device can configure the synchronization signal or physical broadcast channel block measurement timing configuration (Synchronization Signal / PBCH Block measurement timing configuration, SMTC) for the terminal device so that the terminal device can perform cell measurement. In addition, the network device can configure the measurement gap for the terminal device to perform cell measurement within the measurement gap.

[0003] However, for non-terrestrial network (NTN) technology, satellite communication can be used to provide communication services to ground users. Compared with ground cellular network communication, satellite communication has many unique features. For example, a satellite can cover a large area and orbit around the earth.

[0004] Therefore, for NTN technology, if the solution for SMTC configuration in the Rel-15 / 16NR system is continued to be used, it is very likely that the measurement window of SMTC cannot be covered by the measurement interval, which not only increases the throughput loss but also reduces the efficiency of mobility switching. Summary of the invention

[0005] The embodiments of the present application provide a wireless communication method and device, which can not only reduce the loss of throughput but also improve the efficiency of mobility switching.

[0006] In a first aspect, a wireless communication method is provided, comprising:

[0007] Determine at least one time calibration amount, wherein the at least one time calibration amount is a calibration amount for a synchronization signal or physical broadcast channel block measurement timing configuration SMTC time window offset;

[0008] The at least one time alignment quantity is sent to a terminal.

[0009] In a second aspect, a wireless communication method is provided, including:

[0010] receiving at least one time calibration quantity sent by a network device;

[0011] The synchronization signal or physical broadcast channel block measurement timing configuration SMTC offset is calibrated based on the at least one time calibration quantity.

[0012] In a third aspect, a network device is provided, which is used to execute the method in the first aspect or its implementations. Specifically, the terminal device includes a functional module for executing the method in the first aspect or its implementations.

[0013] In a fourth aspect, a terminal device is provided, which is used to execute the method in the second aspect or its respective implementations. Specifically, the network device includes a functional module for executing the method in the second aspect or its respective implementations.

[0014] In a fifth aspect, a network device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect or its implementation manners.

[0015] In a sixth aspect, a terminal device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or its implementation manners.

[0016] In a seventh aspect, a chip is provided for implementing the method in any one of the first to second aspects or their respective implementations. Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes the method in any one of the first to second aspects or their respective implementations.

[0017] In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method of any one of the first to second aspects or any of their implementations.

[0018] In a ninth aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method in any one of the first to second aspects above or in each of their implementations.

[0019] In a tenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to second aspects or in each of their implementations.

[0020] Based on the above technical solution, through the at least one time calibration amount, the measurement windows of different SMTCs can be aligned as much as possible, so that the measurement interval can cover as many measurement windows of different SMTCs as possible. Accordingly, it can not only reduce the throughput loss, but also improve the efficiency of mobility switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figures 1 to 3 This is an example of the application scenario of this application.

[0022] Figure 4 It is a schematic flowchart of the wireless communication method provided in an embodiment of the present application.

[0023] Figure 5 It is a schematic flow chart of multiple SMTCs provided in an embodiment of the present application.

[0024] Figure 6 It is a schematic block diagram of a network device provided in an embodiment of the present application.

[0025] Figure 7 It is a schematic block diagram of a terminal device provided in an embodiment of the present application.

[0026] Figure 8 It is a schematic block diagram of a communication device provided in an embodiment of the present application.

[0027] Fig. 9 It is a schematic block diagram of the chip provided in the embodiment of the present application. DETAILED DESCRIPTION

[0028] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application.

[0030] like Figure 1 As shown, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 may communicate with the terminal device 110 via an air interface. The terminal device 110 and the network device 120 support multi-service transmission.

[0031] It should be understood that the embodiments of the present application are only exemplified by the communication system 100, but the embodiments of the present application are not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), 5G communication system (also known as New Radio (NR) communication system), or future communication systems.

[0032] exist Figure 1 In the communication system 100 shown, the network device 120 may be an access network device that communicates with the terminal device 110. The access network device may provide communication coverage for a specific geographical area, and may communicate with the terminal device 110 (eg, UE) located in the coverage area.

[0033] The network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device 120 may be a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0034] The terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.

[0035] For example, the terminal device 110 may refer to an access terminal, a user equipment (UE), a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolution network, etc.

[0036] The terminal device 110 may be used for device-to-device (D2D) communication.

[0037] The wireless communication system 100 may also include a core network device 130 for communicating with the base station, and the core network device 130 may be a 5G core network (5G Core, 5GC) device, for example, an access and mobility management function (Access and Mobility Management Function, AMF), and for example, an authentication server function (Authentication Server Function, AUSF), and for example, a user plane function (User Plane Function, UPF), and for example, a session management function (Session Management Function, SMF). Optionally, the core network device 130 may also be an evolved packet core (Evolved Packet Core, EPC) device of the LTE network, for example, a session management function + a data gateway (Session Management Function + Core Packet Gateway, SMF + PGW-C) device of the core network. It should be understood that SMF + PGW-C can simultaneously implement the functions that SMF and PGW-C can implement. In the process of network evolution, the above-mentioned core network device may also be called other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited to the embodiments of the present application.

[0038] The functional units in the communication system 100 may also establish connections through next generation (NG) network interfaces to achieve communication.

[0039] For example, the terminal device establishes an air interface connection with the access network device through the NR interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); the access network device, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (N3 for short); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (N2 for short); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (N4 for short); the UPF can exchange user plane data with the data network through the NG interface 6 (N6 for short); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (N11 for short); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (N7 for short).

[0040] Figure 1 A base station, a core network device and two terminal devices are shown exemplarily. Optionally, the wireless communication system 100 may include multiple base station devices and each base station may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0041] Figure 2 A schematic diagram of the architecture of another communication system provided in an embodiment of the present application.

[0042] like Figure 2 As shown, it includes a terminal device 1101 and a satellite 1102, and wireless communication can be performed between the terminal device 1101 and the satellite 1102. The network formed between the terminal device 1101 and the satellite 1102 can also be called NTN. Figure 2 In the architecture of the communication system shown, the satellite 1102 may have the function of a base station, and the terminal device 1101 and the satellite 1102 may communicate directly. In the system architecture, the satellite 1102 may be referred to as a network device. In some embodiments of the present application, the communication system may include multiple network devices 1102, and each network device 1102 may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0043] Figure 3 A schematic diagram of the architecture of another communication system provided in an embodiment of the present application.

[0044] like Figure 3 As shown, it includes terminal device 1201, satellite 1202 and base station 1203. Wireless communication can be performed between terminal device 1201 and satellite 1202, and satellite 1202 and base station 1203 can communicate with each other. The network formed by terminal device 1201, satellite 1202 and base station 1203 can also be called NTN. Figure 3In the architecture of the communication system shown in FIG. 1 , the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be transferred through the satellite 1202. In this system architecture, the base station 1203 can be called a network device. In some embodiments of the present application, the communication system may include multiple network devices 1203, and each network device 1203 may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application. The network device 1203 may be Figure 1 The network device 120 in.

[0045] It should be understood that the satellite 1102 or satellite 1202 includes but is not limited to:

[0046] Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (MEO) satellites, Geostationary Earth Orbit (GEO) satellites, High Elliptical Orbit (HEO) satellites, etc. Satellites can use multiple beams to cover the ground. For example, a satellite can form dozens or even hundreds of beams to cover the ground. In other words, a satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers to ensure satellite coverage and improve the system capacity of the entire satellite communication system.

[0047] As an example, the altitude range of LEO can be 500km~1500km, the corresponding orbital period can be about 1.5 hours~2 hours, the signal propagation delay of single-hop communication between users can generally be less than 20ms, the maximum satellite visible time can be 20 minutes, the signal propagation distance of LEO is short and the link loss is small, and the transmission power requirement of user terminals is not high. The orbital altitude of GEO can be 35786km, the rotation period around the earth can be 24 hours, and the signal propagation delay of single-hop communication between users can generally be 250ms.

[0048] It should be noted that Figures 1 to 3It is only to illustrate the system to which the present application is applicable in the form of an example. Of course, the method shown in the embodiment of the present application can also be applied to other systems. In addition, the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship. It should also be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0049] Figure 4 A schematic flow chart of a wireless pain communication method 200 according to an embodiment of the present application is shown, and the method 200 can be interactively executed by a terminal device and a network device. Figure 2 The terminal device shown in FIG. 1 may be a terminal device such as Figures 1 to 3 The terminal equipment shown in Figure 2 The network devices shown in can be Figures 1 to 3 The access network equipment shown in .

[0050] like Figure 4 As shown, the method 200 may include some or all of the following:

[0051] S210, the network device determines at least one time calibration amount, where the at least one time calibration amount is a calibration amount for a SMTC time window offset of a synchronization signal or physical broadcast channel block measurement timing configuration.

[0052] S220: The network device sends the at least one time calibration value to the terminal.

[0053] S230: The terminal device calibrates the SMTC offset based on the at least one time calibration value.

[0054] For example, the network device may determine the at least one time alignment amount based on various assistance information.

[0055] For example, the auxiliary information includes but is not limited to information determined by the network device and information reported by the terminal device.

[0056] It should be noted that the at least one time calibration value corresponds to the first frequency point or the first frequency band of the terminal device. Optionally, the first frequency point or the first frequency band corresponds to at least one measurement object MO. Optionally, the first frequency point or the first frequency band corresponds to at least one group of cells or at least one cell list.

[0057] It should be noted that the at least one time calibration amount can be used as auxiliary information. For example, auxiliary information for cell selection and reselection measurement. For example, auxiliary information for neighboring cell radio resource management (Radio Resource Management, RRM) measurement. In other words, the at least one time calibration amount can be used as auxiliary information for measurement configuration of a serving cell or a neighboring cell.

[0058] It should be noted that the at least one time calibration amount may include a time calibration amount in at least one group of time calibration amounts. In other words, the network device determining at least one time calibration amount may be equivalent to the network device determining at least one group of time calibration amounts.

[0059] To facilitate understanding of this application, SMTC is described below.

[0060] In some embodiments of the present application, the configuration of SMTC may support a period of {5, 10, 20, 40, 80, 160} ms and a window length of {1, 2, 3, 4, 5} ms, and the offset of each SMTC is related to its period. For example, the offset of SMTC is {0, ..., period - 1}. Since the measurement object (MO) may not contain a carrier frequency, SMTC may be configured per MO rather than per frequency point.

[0061] In other words, SMTC is configured per MO. A frequency point can have multiple MOs and correspond to a cell list (celllist).

[0062] In addition, the first subframe in each system frame number (SFN) of the corresponding NR special cell (Spcell) of each SMTC entity is also obtained by the SMTC period and SMTC offset (periodicityAndOffset).

[0063] For example, the SFN can be determined by the following formula:

[0064] SFN mod T=(FLOOR(Offset / 10));

[0065] Among them, FLOOR represents the rounding down operation, and Offset represents the SMTC offset.

[0066] For example, if the periodicity is larger than the length of 5 subframes (if the Periodicity is larger thansf5), the first subframe (Subframe) is equal to the modulo operation of the offset and 10 (subframe=Offset mod 10); otherwise, the first subframe (Subframe) is equal to the offset or the value of the offset plus 5 (subframe=Offset or(Offset+5)); T=CEIL(Periodicity / 10), CEIL represents the rounding operation towards positive infinity, and Periodicity represents the SMTC period.

[0067] In some embodiments of the present application, for intra-frequency measurements in a connected state, one same-frequency frequency layer can be configured with two SMTCs (SMTC1 and SMTC2). Optionally, the two SMTCs may have the same offset and different periods. Optionally, only SMTC1 may be configured for heterodyne measurements. Optionally, the period of SMTC2 may be shorter than that of SMTC1. Optionally, the offset of SMTC2 may follow that of SMTC1. Optionally, the offset of SMTC2 may be equal to the modulus of the sum of the period and the offset relative to the period (periodicityAndOffset mod periodicity). Optionally, SMTC2 only supports configuration for intra-frequency measurements.

[0068] Figure 5 It is a schematic block diagram of two SMTCs provided in an embodiment of the present application.

[0069] like Figure 5 As shown, the two SMTCs may be two SMTCs with different offsets and the same period. For example, the offset of one SMTC is 0, and the offset of the other SMTC is 10 ms. In addition, the periods of the two SMTCs are both 40 ms. The measurement windows of the two SMTCs may be used to receive one or more synchronization signals / physical broadcast channel blocks (Synchronization Signal / PBCH Block, SSB).

[0070] The measurement interval is described below.

[0071] In some embodiments of the present application, the network device may configure the user equipment (UE) to measure the reference signal receiving power (RSRP), reference signal receiving quality (RSRQ) or signal to interference plus noise ratio (SINR) of the reference signal of the same frequency, different frequency or different network target neighboring area in a specific time window, so that the UE can better implement mobility switching. The specific time window may also be called a measurement gap.

[0072] In addition, in addition to the frequency range below 6 GHz, the terminal device also introduces the millimeter wave frequency band above 6 GHz. Therefore, depending on whether the terminal device supports the FR1 / FR2 frequency range, the measurement interval can be configured per UE and per FR. That is, the measurement interval may include gapFR1, gapFR2 and gapUE. Optionally, the terminal device can also send an independent gap capability indication (independentGapConfig) to the network device to indicate whether the measurement interval per FR1 / 2 can be configured.

[0073] Optionally, gapFR1 is only applicable to FR1. gapFR1 and gapUE do not support simultaneous configuration. Optionally, in E-UTRA and NR Dual Connectivity (EN-DC) mode, gapFR1 does not support NR Radio Resource Control (RRC) configuration, and only LTE RRC can configure FR1 gap.

[0074] Optional, gapFR2 is only applicable to FR2. gapFR2 and gapUE do not support simultaneous configuration.

[0075] Optionally, gapUE applies to all frequency bands, i.e. FR1 and FR2. In EN-DC mode, only LTE RRC can configure gapUE, and NR RRC configuration is not supported. If gapUE is configured, gapFR1 or gapFR2 cannot be configured.

[0076] Optionally, for the per-UE gap, the UE is not allowed to send any data and is not expected to adjust the receivers of the primary carrier and the secondary carrier. If the UE supports the independent gap capability, that is, the measurement of FR1 and FR2 can be independent and unaffected, the UE can configure the per-FR measurement gap.

[0077] It should be noted that FR1 and FR2 may be frequency ranges defined for 5G NR. For example, the frequency range FR1 may be a 5G Sub-6GHz (below 6GHz) frequency band, and the frequency range FR2 may be a 5G millimeter wave frequency band.

[0078] In some embodiments of the present application, one MG pattern can be used to configure a single UE (if UE supports per-UE MG only) or a single FR (if UE supports per-FR MG) within a measurement time. The supported MG length (mgl) includes {ms1dot5, ms3, ms3dot5, ms4, ms5dot5, ms6}; where dot represents a decimal point, and the supported MG period (mgrp) includes {ms20, ms40, ms80, ms160}.

[0079] Based on this, for non-terrestrial network (NTN) technology, satellite communication can be used to provide communication services to ground users. Compared with ground cellular network communication, satellite communication has many unique features. For example, a satellite can cover a large area and orbit around the earth.

[0080] Therefore, for the NTN technology, if a single MG pattern and multiple SMTCs are still used, it is very likely that the measurement window of the SMTC cannot be covered by the MG, which not only increases the throughput loss but also reduces the efficiency of mobility switching.

[0081] For example, for network equipment, the flexibility of network configuration MO will be limited, that is, network equipment is required to align SSB on the base station side to ensure that a single MG pattern can cover the SMTC of SSBs with different frequencies, or configure MO in a certain order, which will delay the measurement and reporting of some candidate neighboring cells. For another example, for terminal equipment, if the SMTC on these MOs cannot be covered by a single MG pattern, the UE will be restricted to perform the measurement of the corresponding MOs in sequence.

[0082] By using the at least one time calibration amount, the measurement windows of different SMTCs can be aligned as much as possible, so that the measurement interval can cover as many measurement windows of different SMTCs as possible. Accordingly, not only can the throughput loss be reduced, but also the efficiency of mobility switching can be improved.

[0083] In other words, through the at least one time calibration quantity, the satellite (base station) can configure the SMTC (including length, period and offset) in a reference area so that the interruption device can complete the measurement and reporting more centrally and efficiently.

[0084] In particular, due to the large propagation delay of the NTN network, the actual time when the terminal device receives the measurement reference signal of each service cell and neighboring cell will be offset differently with different propagation delays. Therefore, when each satellite (base station) in the NTN network is configured with SMTC, the offset of the measurement window is calibrated by the at least one time calibration amount, which helps to compensate for the time deviation caused by the large path transmission delay, so that the SMTCs of multiple cells are aligned as much as possible, ensuring that the perUE or perFR measurement interval MG configured in the service cell can cover as much of the measurement window as possible.

[0085] In some embodiments of the present application, the S210 may include:

[0086] Determining the position of the satellite based on a satellite positioning map of the satellite;

[0087] The at least one time calibration amount is determined or selected based on the position of the satellite and preset calibration information corresponding to the position of the satellite.

[0088] For example, the preset calibration information may be time calibration information or position calibration information. For example, the preset calibration information may include at least one position of the satellite and calibration information corresponding to each of the at least one position.

[0089] For example, when each satellite configures a measurement object (meas-object) for a cell at a different frequency point, it can obtain the time calibration value for the SMTC offset corresponding to the current real-time different frequency points or even at the frequency band level according to the satellite constellation diagram. The calibration value can be used as auxiliary information for the SMTC measured in the service cell or the neighboring cell.

[0090] For example, the time calibration amount of the SMTC offset configured for a certain frequency point or frequency band of the terminal device can be determined or selected from the pre-configured time calibration amounts based on the satellite constellation diagram.

[0091] Acquiring the at least one time calibration value through a satellite positioning map can not only avoid changing the protocol framework, but also improve the reliability of network measurement configuration, improve the efficiency of UE measurement, and ensure faster completion and reporting of measurements of all cells.

[0092] In some embodiments of the present application, the S210 may include:

[0093] Acquire location information of the terminal device; acquire a propagation delay of the terminal device based on the location information of the terminal device; and determine the at least one time calibration amount based on the propagation delay of the terminal device.

[0094] For example, when each satellite configures a measurement object (meas-object) for a cell at a different frequency, it obtains the propagation delay of the different frequency points or cells based on the UE location information requested, and then converts it into a time calibration value for the SMTC offset at the frequency point or larger frequency band level to assist in the configuration of the SMTC for the measurement of each service cell or neighboring cell of the UE.

[0095] Acquiring the at least one time calibration value through the location information of the terminal can enable the network equipment to configure SMTC more reasonably, improve the efficiency of terminal equipment measurement, and even allow the service cell to configure a shorter MG for the terminal equipment, which can not only reduce throughput loss but also improve the efficiency of mobility switching.

[0096] In some embodiments of the present application, a network device receives first reporting information sent by the terminal device, where the first reporting information includes location information of the terminal device.

[0097] For example, the network device receives the first reporting information periodically sent by the terminal device.

[0098] For another example, the network device sends a request message to the terminal device, wherein the request message is used to request the terminal device to report the location information. In other words, the network device sends the request message to the terminal device before receiving the first reporting information.

[0099] In some embodiments of the present application, the S210 may include:

[0100] Acquire a positioning measurement result of the terminal device; and determine the at least one time calibration value based on the positioning measurement result of the terminal device.

[0101] For example, the positioning measurement result includes a reference signal time difference measurement value (Reference Signal Time Difference measurement, RSTD), and the reference signal time difference measurement value can be called a delay estimation difference or a receiving time difference.

[0102] For example, in the case where multiple neighboring cells measure the UE mobility at the same frequency, the serving cell can trigger a request for the UE to simultaneously perform positioning measurements on the cells (cell group) at the same frequency to obtain positioning measurement results (such as received time difference, RSTD), or obtain reported positioning measurement results through other means (such as UE RRC dedicated signaling, other network assistance messages related to geographic location). Furthermore, the satellite base station obtains the at least one time calibration amount based on the positioning measurement result to assist the network equipment in configuring SMTC per frequency layer or per cell group.

[0103] Determining the at least one time calibration value through the positioning measurement result is more real-time and accurate than determining the at least one time calibration value based on the location information of the terminal device. In addition, the network device can configure the SMTC more reasonably to improve the measurement efficiency of each terminal device, and even allow the service cell to configure a shorter MG for the terminal device, which can not only reduce the throughput loss but also improve the efficiency of mobility switching.

[0104] In some embodiments of the present application, the network device receives second reporting information sent by the terminal device, where the second reporting information includes a positioning measurement result of the terminal device.

[0105] For example, the network device receives the second reporting information periodically sent by the terminal device.

[0106] For another example, the network device sends instruction information to the terminal device, where the instruction information is used to instruct the terminal device to perform positioning measurement. In other words, before the network device receives the second reporting information, it sends the instruction information to the terminal device.

[0107] In some embodiments of the present application, the S220 may include:

[0108] The network device sends auxiliary signaling of timing advance TA information to the target terminal, where the auxiliary signaling includes the at least one time calibration value.

[0109] Carrying the at least one time calibration amount in the auxiliary signaling of the TA information can realize the configuration of the at least one time calibration amount and thus enable the network device to configure the SMTC more reasonably, improve the measurement efficiency of each terminal device, and even allow the service cell to configure a shorter MG for the terminal device, which can not only reduce the throughput loss but also improve the efficiency of mobility switching.

[0110] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will not further explain various possible combinations. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the ideas of the present application, they should also be regarded as the contents disclosed in the present application.

[0111] It should also be understood that in various method embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. In addition, in the embodiment of the present application, the terms "downlink" and "uplink" are used to indicate the transmission direction of the signal or data, wherein "downlink" is used to indicate that the transmission direction of the signal or data is a first direction sent from the site to the user equipment of the cell, and "uplink" is used to indicate that the transmission direction of the signal or data is a second direction sent from the user equipment of the cell to the site, for example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiment of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. Specifically, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0112] Combination of the above Figures 1 to 5 , describes in detail the method embodiment of the present application, and the following is combined with Figures 6 to 9 , describe in detail the device embodiments of the present application.

[0113] Figure 6 It is a schematic block diagram of a network device 300 according to an embodiment of the present application.

[0114] like Figure 6 As shown, the network device 300 may include:

[0115] The determining unit 310 is configured to determine at least one time calibration amount, wherein the at least one time calibration amount is a calibration amount for a SMTC time window offset of a synchronization signal or a physical broadcast channel block measurement timing configuration;

[0116] The sending unit 320 is configured to send the at least one time calibration value to the terminal.

[0117] In some embodiments of the present application, the determining unit 310 is specifically configured to:

[0118] Determining the position of the satellite based on a satellite positioning map of the satellite;

[0119] The at least one time calibration amount is determined or selected based on the position of the satellite and preset calibration information corresponding to the position of the satellite.

[0120] In some embodiments of the present application, the determining unit 310 is specifically configured to:

[0121] Obtaining location information of the terminal device;

[0122] Based on the location information of the terminal device, acquiring the propagation delay of the terminal device;

[0123] The at least one time alignment quantity is determined based on a propagation delay of the terminal device.

[0124] In some embodiments of the present application, the determining unit 310 is further configured to:

[0125] Receive first reporting information sent by the terminal device, where the first reporting information includes location information of the terminal device.

[0126] In some embodiments of the present application, the determining unit 310 is further configured to:

[0127] Send a request message to the terminal device, where the request message is used to request the terminal device to report location information.

[0128] In some embodiments of the present application, the determining unit 310 is specifically configured to:

[0129] Obtaining a positioning measurement result of the terminal device;

[0130] The at least one time calibration quantity is determined based on the positioning measurement result of the terminal device.

[0131] In some embodiments of the present application, the positioning measurement result includes a reference signal time difference measurement value RSTD.

[0132] In some embodiments of the present application, the determining unit 310 is further configured to:

[0133] Receive second reporting information sent by the terminal device, where the second reporting information includes a positioning measurement result of the terminal device.

[0134] In some embodiments of the present application, the determining unit 310 is further configured to:

[0135] Send indication information to the terminal device, where the indication information is used to instruct the terminal device to perform positioning measurement.

[0136] In some embodiments of the present application, the sending unit 320 is specifically used to:

[0137] An auxiliary signaling of timing advance TA information is sent to the target terminal, where the auxiliary signaling includes the at least one time alignment value.

[0138] In some embodiments of the present application, the at least one time calibration amount corresponds to a first frequency point or a first frequency band of the terminal device.

[0139] In some embodiments of the present application, the first frequency point or the first frequency band corresponds to at least one measurement object MO.

[0140] In some embodiments of the present application, the first frequency point or the first frequency band corresponds to at least one group of cells or at least one cell list.

[0141] In some embodiments of the present application, the first frequency point includes at least one frequency point, or the first frequency band includes at least one frequency band.

[0142] It should be understood that the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment. Specifically, Figure 6 The network device 300 shown may correspond to the corresponding subject in the method 200 of the embodiment of the present application, and the aforementioned and other operations and / or functions of each unit in the network device 300 are respectively to implement Figure 4 For the sake of brevity, the corresponding processes in each method are not repeated here.

[0143] Figure 7 It is a schematic block diagram of a terminal device 400 according to an embodiment of the present application.

[0144] like Figure 7 As shown, the terminal device 400 may include:

[0145] The receiving unit 410 is configured to receive at least one time calibration value sent by a network device;

[0146] The calibration unit 420 is configured to calibrate a synchronization signal or a physical broadcast channel block measurement timing configuration SMTC offset based on the at least one time calibration quantity.

[0147] In some embodiments of the present application, the receiving unit 410 is further configured to:

[0148] Send first reporting information to the network device, where the first reporting information includes location information of the terminal device.

[0149] In some embodiments of the present application, the receiving unit 410 is further configured to:

[0150] Receive request information sent by the network device, where the request information is used to request the terminal device to report location information.

[0151] In some embodiments of the present application, the receiving unit 410 is further configured to:

[0152] Send second reporting information to the network device, where the second reporting information includes the positioning measurement result of the terminal device.

[0153] In some embodiments of the present application, the positioning measurement result includes a reference signal time difference measurement value RSTD.

[0154] In some embodiments of the present application, the receiving unit 410 is further configured to:

[0155] Send indication information to the terminal device, where the indication information is used to instruct the terminal device to perform positioning measurement.

[0156] In some embodiments of the present application, the receiving unit 410 is specifically used to:

[0157] An auxiliary signaling of timing advance TA information sent by the network device is received, where the auxiliary signaling includes the at least one time alignment value.

[0158] In some embodiments of the present application, the at least one time calibration amount corresponds to a first frequency point or a first frequency band of the terminal device.

[0159] In some embodiments of the present application, the first frequency point or the first frequency band corresponds to at least one measurement object MO.

[0160] In some embodiments of the present application, the first frequency point or the first frequency band corresponds to at least one group of cells or at least one cell list.

[0161] In some embodiments of the present application, the first frequency point includes at least one frequency point, or the first frequency band includes at least one frequency band.

[0162] It should be understood that the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment. Specifically, Figure 7 The terminal device 400 shown may correspond to the corresponding subject in the method 200 of the embodiment of the present application, and the aforementioned and other operations and / or functions of each unit in the terminal device 400 are respectively to implement Figure 4 For the sake of brevity, the corresponding processes in each method are not repeated here.

[0163] The communication device of the embodiment of the present application is described above from the perspective of functional modules in conjunction with the accompanying drawings. It should be understood that the functional modules can be implemented in hardware form, can also be implemented by software instructions, and can also be implemented by a combination of hardware and software modules.

[0164] Specifically, each step of the method embodiment in the embodiment of the present application can be completed by the hardware integrated logic circuit and / or software instructions in the processor. The steps of the method disclosed in the embodiment of the present application can be directly reflected as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor.

[0165] Optionally, the software module may be located in a mature storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps in the above method embodiment in combination with its hardware.

[0166] For example, the processing unit and the communication unit mentioned above may be implemented by a processor and a transceiver, respectively.

[0167] Figure 8 It is a schematic structural diagram of a communication device 500 according to an embodiment of the present application.

[0168] like Figure 8 As shown, the communication device 500 may include a processor 510 .

[0169] The processor 510 may call and run a computer program from the memory to implement the method in the embodiment of the present application.

[0170] Please continue to see Figure 8 , the communication device 500 may further include a memory 520 .

[0171] The memory 520 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 510. The processor 510 may call and run a computer program from the memory 520 to implement the method in the embodiment of the present application. The memory 520 may be a separate device independent of the processor 510, or may be integrated in the processor 510.

[0172] Please continue to see Figure 8 , the communication device 500 may further include a transceiver 530 .

[0173] The processor 510 may control the transceiver 530 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices. The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of antennas may be one or more.

[0174] It should be understood that the various components in the communication device 500 are connected via a bus system, wherein the bus system includes not only a data bus but also a power bus, a control bus and a status signal bus.

[0175] It should also be understood that the communication device 500 may be a terminal device of an embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, that is, the communication device 500 of the embodiment of the present application may correspond to the network device 300 in the embodiment of the present application, and may correspond to the corresponding subject in the method 200 according to the embodiment of the present application, for the sake of brevity, it will not be repeated here. Similarly, the communication device 500 may be a terminal device of an embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. That is to say, the communication device 500 of the embodiment of the present application may correspond to the terminal device 400 in the embodiment of the present application, and may correspond to the corresponding subject in the method 200 according to the embodiment of the present application, for the sake of brevity, it will not be repeated here.

[0176] In addition, a chip is also provided in an embodiment of the present application.

[0177] For example, the chip may be an integrated circuit chip with signal processing capabilities, and can implement or execute the methods, steps, and logic diagrams disclosed in the embodiments of the present application. The chip may also be called a system-level chip, a system chip, a chip system, or a system-on-chip chip, etc. Optionally, the chip can be applied to various communication devices, so that the communication device equipped with the chip can execute the methods, steps, and logic diagrams disclosed in the embodiments of the present application.

[0178] Fig. 9 is a schematic structural diagram of a chip 600 according to an embodiment of the present application.

[0179] like Fig. 9 As shown, the chip 600 includes a processor 610 .

[0180] The processor 610 may call and run a computer program from the memory to implement the method in the embodiment of the present application.

[0181] Please continue to see Fig. 9 , the chip 600 may further include a memory 620 .

[0182] The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application. The memory 620 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 610. The memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.

[0183] Please continue to see Fig. 9 , the chip 600 may further include an input interface 630 .

[0184] The processor 610 may control the input interface 630 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0185] Please continue to see Fig. 9 , the chip 600 may further include an output interface 640 .

[0186] The processor 610 may control the output interface 640 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0187] It should be understood that the chip 600 can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of the present application, and can also implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be repeated here.

[0188] It should also be understood that the various components in the chip 600 are connected via a bus system, wherein the bus system includes not only a data bus but also a power bus, a control bus and a status signal bus.

[0189] The processors mentioned above may include but are not limited to:

[0190] General-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc.

[0191] The processor can be used to implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. The steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware decoding processor, or a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0192] The memory mentioned above includes but is not limited to:

[0193] Volatile memory and / or non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM) or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus random access memory (DR RAM).

[0194] It should be noted that the memory described herein is intended to include these and any other suitable types of memory.

[0195] In an embodiment of the present application, a computer-readable storage medium is further provided for storing computer programs. The computer-readable storage medium stores one or more programs, and the one or more programs include instructions, which, when executed by a portable electronic device including multiple application programs, enable the portable electronic device to execute the method of the embodiment shown in method 200.

[0196] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0197] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0198] A computer program product is also provided in an embodiment of the present application, including a computer program.

[0199] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0200] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0201] The present application also provides a computer program in an embodiment. When the computer program is executed by a computer, the computer can execute the method of the embodiment shown in method 200 .

[0202] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods in the embodiments of the present application. For the sake of brevity, they are not described here.

[0203] In addition, the embodiment of the present application also provides a communication system, which may include the terminal device and the network device involved above to form a communication system as follows: Figure 1 The communication system 100 shown is not described in detail for the sake of brevity. It should be noted that the term "system" and the like in this document may also be referred to as "network management architecture" or "network system" and the like.

[0204] It should also be understood that the terms used in the embodiments of the present application and the appended claims are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present application.

[0205] For example, as used in the embodiments of the present application and the appended claims, the singular forms "a," "said," "above," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0206] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present application.

[0207] If implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

[0208] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0209] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways.

[0210] For example, the division of units or modules or components in the device embodiment described above is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or modules or components can be combined or integrated into another system, or some units or modules or components can be ignored or not executed.

[0211] For another example, the units / modules / components described above as separation / display components may or may not be physically separated, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units / modules / components may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0212] Finally, it should be noted that the mutual coupling or direct coupling or communication connection shown or discussed above may be an indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

[0213] The above contents are only specific implementation methods of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the embodiments of the present application, which should be included in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: The wireless communication method is applied in NTN, and the wireless communication method includes: Determine at least one time calibration amount, wherein the at least one time calibration amount is a calibration amount for a synchronization signal or physical broadcast channel block measurement timing configuration SMTC offset during cell selection and reselection; sending the at least one time calibration quantity to a terminal device; Wherein, determining at least one time calibration quantity comprises: Determining the position of the satellite based on a satellite positioning map of the satellite; The at least one time calibration quantity is determined or selected based on the position of the satellite and preset calibration information, wherein the preset calibration information is calibration information corresponding to the position of the satellite.

2. The method according to claim 1, characterized in that The determining of at least one time calibration quantity further comprises: Obtaining location information of the terminal device; Based on the location information of the terminal device, acquiring the propagation delay of the terminal device; The at least one time alignment quantity is determined based on a propagation delay of the terminal device.

3. The method according to claim 2, characterized in that The obtaining the location information of the terminal device includes: Receive first reporting information sent by the terminal device, where the first reporting information includes location information of the terminal device.

4. The method according to claim 3, characterized in that The method further comprises: Send a request message to the terminal device, where the request message is used to request the terminal device to report location information.

5. The method according to claim 1, characterized in that The determining of at least one time calibration quantity comprises: Obtaining a positioning measurement result of the terminal device; The at least one time calibration quantity is determined based on the positioning measurement result of the terminal device.

6. The method according to claim 5, characterized in that The positioning measurement result includes a reference signal time difference measurement value RSTD.

7. The method according to claim 5, characterized in that The obtaining the positioning measurement result of the terminal device includes: Receive second reporting information sent by the terminal device, where the second reporting information includes a positioning measurement result of the terminal device.

8. The method according to claim 7, characterized in that The method further comprises: Send indication information to the terminal device, where the indication information is used to instruct the terminal device to perform positioning measurement.

9. The method according to claim 1, characterized in that: The sending the at least one time calibration value to the terminal device comprises: Auxiliary signaling of timing advance TA information is sent to the terminal device, and the auxiliary signaling includes the at least one time calibration amount.

10. The method according to any one of claims 1 to 9, characterized in that The at least one time calibration amount corresponds to the first frequency point or the first frequency band of the terminal device.

11. The method according to claim 10, characterized in that The first frequency point or the first frequency band corresponds to at least one measurement object MO.

12. The method according to claim 10, characterized in that The first frequency point or the first frequency band corresponds to at least one group of cells or at least one cell list.

13. The method according to claim 10, characterized in that The first frequency point includes at least one frequency point, or the first frequency band includes at least one frequency band.

14. A wireless communication method, characterized in that: The wireless communication method is applied in NTN, and the wireless communication method includes: receiving at least one time calibration quantity sent by a network device; Based on the at least one time calibration amount, calibrate the synchronization signal or physical broadcast channel block measurement timing configuration SMTC offset during cell selection and reselection; The at least one time calibration quantity is obtained by the network device determining the position of the satellite based on the satellite positioning map of the satellite, and determining or selecting the at least one time calibration quantity based on the position of the satellite and preset calibration information, wherein the preset calibration information is calibration information corresponding to the position of the satellite.

15. The method according to claim 14, characterized in that The method further comprises: Send first reporting information to the network device, where the first reporting information includes location information of the terminal device.

16. The method according to claim 15, characterized in that The method further comprises: Receive request information sent by the network device, where the request information is used to request the terminal device to report location information.

17. The method according to claim 14, characterized in that The method further comprises: Send second reporting information to the network device, where the second reporting information includes a positioning measurement result of the terminal device.

18. The method according to claim 17, characterized in that The positioning measurement result includes a reference signal time difference measurement value RSTD.

19. The method according to claim 17, characterized in that The method further comprises: Send indication information to the terminal device, where the indication information is used to instruct the terminal device to perform positioning measurement.

20. The method according to claim 14, characterized in that The receiving at least one time calibration value sent by the network device comprises: An auxiliary signaling of timing advance TA information sent by the network device is received, where the auxiliary signaling includes the at least one time alignment value.

21. The method according to any one of claims 14 to 20, characterized in that The at least one time calibration amount corresponds to the first frequency point or the first frequency band of the terminal device.

22. The method according to claim 21, characterized in that The first frequency point or the first frequency band corresponds to at least one measurement object MO.

23. The method according to claim 21, characterized in that The first frequency point or the first frequency band corresponds to at least one group of cells or at least one cell list.

24. The method according to claim 21, characterized in that The first frequency point includes at least one frequency point, or the first frequency band includes at least one frequency band.

25. A network device, characterized in that: The network device is a device in the NTN, and the network device includes: A determining unit, configured to determine at least one time calibration amount, wherein the at least one time calibration amount is a calibration amount for a synchronization signal or physical broadcast channel block measurement timing configuration SMTC offset during cell selection and reselection; A sending unit, configured to send the at least one time calibration value to a terminal device; The determination unit is specifically used to: determine the position of the satellite based on the satellite positioning map of the satellite; determine or select at least one time calibration amount based on the position of the satellite and preset calibration information, wherein the preset calibration information is calibration information corresponding to the position of the satellite.

26. A terminal device, characterized in that: The terminal device is a device in the NTN, and the terminal device includes: A receiving unit, configured to receive at least one time calibration value sent by a network device; A calibration unit, configured to calibrate a synchronization signal or physical broadcast channel block measurement timing configuration SMTC offset during cell selection and reselection based on the at least one time calibration amount; The at least one time calibration quantity is obtained by the network device determining the position of the satellite based on the satellite positioning map of the satellite, and determining or selecting the at least one time calibration quantity based on the position of the satellite and preset calibration information, wherein the preset calibration information is calibration information corresponding to the position of the satellite.

27. A network device, characterized in that: include: A processor, a memory and a transceiver, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 13.

28. A terminal device, characterized in that: include: A processor, a memory and a transceiver, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 14 to 24.

29. A chip, characterized in that: include: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 13 or executes a method as claimed in any one of claims 14 to 24.

30. A computer-readable storage medium, characterized in that: Used to store a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 13 or to execute the method according to any one of claims 14 to 24.

31. A computer program product, characterized in that The method comprises computer program instructions which cause a computer to execute the method according to any one of claims 1 to 13 or to execute the method according to any one of claims 14 to 24.

Images