CN116097114B

CN116097114B - Wireless communication method and device

Info

Publication number: CN116097114B
Application number: CN202080103968.0A
Authority: CN
Inventors: 胡荣贻
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2025-05-13
Anticipated expiration: 2040-09-30
Also published as: CN116097114A; WO2022067763A1

Abstract

The embodiment of the application provides a wireless communication method and device. The method includes determining at least one time calibration quantity, which is a calibration quantity for configuring SMTC time window offset for synchronization signal or physical broadcast channel block measurement timing, and transmitting the at least one time calibration quantity to a terminal. Through the at least one time calibration quantity, measurement windows of different SMTCs can be aligned as much as possible, so that measurement intervals can cover the measurement windows of different SMTCs as much as possible, accordingly, throughput loss can be reduced, and mobility switching efficiency can be improved.

Description

Wireless communication method and device

Technical Field

Embodiments of the present application relate to the field of communications, and more particularly, to wireless communication methods and apparatuses.

Background

In the Rel-15/16NR system, the network device may configure a 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 make cell measurements. In addition, the network device may configure a Measurement Gap (Measurement Gap) for the terminal device to perform cell measurements within the Measurement Gap.

But for non-terrestrial communication network (Non Terrestrial Network, NTN) technologies, satellite communication may be employed to provide communication services to terrestrial users. Satellite communications have many unique features over terrestrial cellular communications. For example, one satellite may cover a larger ground surface and may orbit the earth.

Therefore, for NTN technology, if the scheme related to SMTC configuration in Rel-15/16NR system is continuously adopted, it is more likely that the measurement window of SMTC cannot be covered by the measurement interval (cover), which in turn increases throughput loss and reduces mobility handover efficiency.

Disclosure of Invention

The embodiment of the application provides a wireless communication method and equipment, which not only can reduce the loss of throughput, but also can improve the efficiency of mobility switching.

In a first aspect, a wireless communication method is provided, including:

determining at least one time calibration quantity, the at least one time calibration quantity being a calibration quantity that configures SMTC time window offsets for synchronization signal or physical broadcast channel block measurement timing;

and transmitting the at least one time calibration quantity to the terminal.

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

receiving at least one time calibration quantity transmitted by a network device;

Calibrating a synchronization signal or physical broadcast channel block measurement timing configuration SMTC offset based on the at least one time calibration quantity.

In a third aspect, a network device is provided for performing the method of the first aspect or implementations thereof. Specifically, the terminal device includes a functional module for executing the method in the first aspect or each implementation manner thereof.

In a fourth aspect, a terminal device is provided for performing the method of the second aspect or each implementation manner thereof. In particular, the network device comprises functional modules for performing the method of the second aspect or implementations thereof described above.

In a fifth aspect, a network device is provided that includes a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and execute the computer program stored in the memory, so as to perform the method in the first aspect or each implementation manner thereof.

In a sixth aspect, a terminal device is provided, comprising a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the second aspect or various implementation manners thereof.

A seventh aspect provides a chip for implementing the method of any one of the first to second aspects or each implementation thereof. In particular, the chip comprises a processor for calling and running a computer program from a memory, such that a device on which the chip is mounted performs the method as in any one of the above-mentioned first to second aspects or implementations thereof.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to perform the method of any one of the above first to second aspects or implementations thereof.

A ninth aspect provides a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

In a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

Based on the above technical scheme, through the at least one time calibration quantity, measurement windows of different SMTCs can be aligned as much as possible, and then measurement intervals can cover (cover) the measurement windows of different SMTCs as much as possible, accordingly, loss of throughput can be reduced, and efficiency of mobility switching can be improved.

Drawings

Fig. 1 to 3 are examples of application scenarios of the present application.

Fig. 4 is a schematic flow chart of a wireless communication method provided by an embodiment of the present application.

Fig. 5 is a schematic flow chart of a multiple SMTC provided by an embodiment of the present application.

Fig. 6 is a schematic block diagram of a network device provided by an embodiment of the present application.

Fig. 7 is a schematic block diagram of a terminal device provided in an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application.

Fig. 9 is a schematic block diagram of a chip provided by an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

As shown in fig. 1, communication system 100 may include a terminal device 110 and a network device 120. Network device 120 may communicate with terminal device 110 over the air interface. Multi-service transmission is supported between terminal device 110 and network device 120.

It should be understood that embodiments of the present application are illustrated by way of example only with respect to communication system 100, and embodiments of the present application are not limited thereto. That is, the technical solution of the embodiment of the present application may be applied to various communication systems, such as a long term evolution (Long Term Evolution, LTE) system, an LTE time division duplex (Time Division Duplex, TDD), a universal mobile telecommunication system (Universal Mobile Telecommunication System, UMTS), a 5G communication system (also referred to as a New Radio (NR) communication system), or a future communication system.

In the communication system 100 shown in fig. 1, the network device 120 may be an access network device in communication with the terminal device 110. The access network device may provide communication coverage for a particular geographic area and may communicate with terminal devices 110 (e.g., UEs) located within the coverage area.

The network device 120 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a long term evolution (Long Term Evolution, LTE) system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, or a base station (gNB) in a NR system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 may be a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

Terminal device 110 may be any terminal device including, but not limited to, a terminal device that employs a wired or wireless connection with network device 120 or other terminal devices.

For example, the terminal device 110 may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolution network, etc.

The terminal Device 110 may be used for Device-to-Device (D2D) communication.

The wireless communication system 100 may further comprise a core network device 130 in communication with the base station, which core network device 130 may be a 5G core,5gc device, e.g. an access and mobility management function (ACCESS AND Mobility Management Function, AMF), further e.g. an authentication server function (Authentication Server Function, AUSF), further e.g. a user plane function (User Plane Function, UPF), further e.g. a session management function (Session Management Function, SMF). Optionally, the Core network device 130 may also be a packet Core evolution (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 appreciated that SMF+PGW-C may perform the functions performed by both SMF and PGW-C. In the network evolution process, the core network device may also call other names, or form new network entities by dividing the functions of the core network, which is not limited in this embodiment of the present application.

Communication may also be achieved by establishing connections between various functional units in the communication system 100 through a next generation Network (NG) interface.

For example, the terminal device establishes an air interface connection with the access network device through an NR interface for transmitting user plane data and control plane signaling, the terminal device may establish a control plane signaling connection with the AMF through an NG interface 1 (abbreviated as N1), the access network device may establish a user plane data connection with the UPF through an NG interface 3 (abbreviated as N3), the access network device may establish a control plane signaling connection with the AMF through an NG interface 2 (abbreviated as N2), the UPF may establish a control plane signaling connection with the SMF through an NG interface 4 (abbreviated as N4), the UPF may interact user plane data with the data network through an NG interface 6 (abbreviated as N6), the AMF may establish a control plane signaling connection with the SMF through an NG interface 11 (abbreviated as N11), and the SMF may establish a control plane signaling connection with the PCF through an NG interface 7 (abbreviated as N7).

Fig. 1 exemplarily illustrates one base station, one core network device, and two terminal devices, alternatively, the wireless communication system 100 may include a plurality of base station devices and each base station may include other number of terminal devices within a coverage area, which is not limited by the embodiment of the present application.

Fig. 2 is a schematic diagram of another architecture of a communication system according to an embodiment of the present application.

As shown in FIG. 2, including a terminal device 1101 and a satellite 1102, wireless communication may be provided between terminal device 1101 and satellite 1102. The network formed between terminal device 1101 and satellite 1102 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 2, satellite 1102 may have the functionality of a base station and direct communication may be provided between terminal device 1101 and satellite 1102. Under the system architecture, satellite 1102 may be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1102 may be included in a communication system, and other numbers of terminal devices may be included within the coverage area of each network device 1102, which embodiments of the present application are not limited in this regard.

Fig. 3 is a schematic diagram of another architecture of a communication system according to an embodiment of the present application.

As shown in fig. 3, the system comprises a terminal device 1201, a satellite 1202 and a base station 1203, wherein wireless communication can be performed between the terminal device 1201 and the satellite 1202, and communication can be performed between the satellite 1202 and the base station 1203. The network formed between the terminal device 1201, the satellite 1202 and the base station 1203 may also be referred to as NTN. In the architecture of the communication system shown in fig. 3, the satellite 1202 may not have the function of a base station, and communication between the terminal device 1201 and the base station 1203 needs to be relayed through the satellite 1202. Under such a system architecture, the base station 1203 may be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1203 may be included in the communication system, and other number of terminal devices may be included in the coverage area of each network device 1203, which is not limited by the embodiment of the present application. The network device 1203 may be the network device 120 of fig. 1.

It should be appreciated that the satellites 1102 or 1202 include, but are not limited to:

low Earth Orbit (Low-Earth Orbit) LEO satellites, medium Earth Orbit (MEO) satellites, geosynchronous Orbit (Geostationary Earth Orbit, GEO) satellites, high elliptical Orbit (HIGH ELLIPTICAL Orbit, HEO) satellites, and the like. Satellites may cover the ground with multiple beams, e.g., a satellite may form tens or even hundreds of beams to cover the ground. In other words, one satellite beam may cover a ground area of several tens to hundreds of kilometers in diameter to ensure satellite coverage and to increase the system capacity of the overall satellite communication system.

As an example, the height range of the LEO may be 500 km-1500 km, the corresponding orbit period may be about 1.5 hours-2 hours, the signal propagation delay of single-hop communication between users may be generally less than 20ms, the maximum satellite visible time may be 20 minutes, the signal propagation distance of the LEO is short, the link loss is less, and the requirement on the transmitting power of the user terminal is not high. The orbit height of GEO may be 35786km, the period of rotation around the earth may be 24 hours, and the signal propagation delay for single hop communications between users may typically be 250ms.

It should be noted that fig. 1 to 3 illustrate, by way of example, a system to which the present application is applied, and of course, the method shown in the embodiment of the present application may be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean that a exists alone, while a and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship. It should also be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, the indication B may indicate that a directly indicates B, for example, B may be obtained by a, or may indicate that a indirectly indicates B, for example, a indicates C, B may be obtained by C, or may indicate that a and B have an association relationship.

Fig. 4 shows a schematic flow chart of a wireless pain communication method 200 according to an embodiment of the application, which method 200 may be performed interactively by a terminal device and a network device. The terminal device shown in fig. 2 may be a terminal device as shown in fig. 1 to 3, and the network device shown in fig. 2 may be an access network device as shown in fig. 1 to 3.

As shown in fig. 4, the method 200 may include some or all of the following:

s210, the network device determines at least one time calibration quantity, which is a calibration quantity for configuring SMTC time window offset for synchronization signal or physical broadcast channel block measurement timing.

S220, the network device sends the at least one time calibration quantity to the terminal.

S230, the terminal device calibrates the SMTC offset based on the at least one time calibration amount.

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

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

It should be noted that the at least one time calibration amount corresponds to a first frequency point or a 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.

It should be noted that the at least one time calibration amount may be used as auxiliary information. For example, assistance information for cell selection and reselection measurements. E.g. assistance information measured for neighbor radio resource management (Radio Resource Management, RRM). In other words, the at least one time alignment quantity may provide assistance information as a measurement configuration of the serving cell or the neighbor cell.

It should be noted that the at least one time calibration quantity may include a time calibration quantity in at least one set of time calibration quantities. In other words, the network device determining at least one time calibration quantity may be equivalent to the network device determining at least one set of time calibration quantities.

SMTC is described below to facilitate an understanding of the present application.

In some embodiments of the application, the configuration of SMTCs may support {5,10,20,40,80,160} ms periods and window lengths of {1,2,3,4,5} ms, with the offset (offset) of each SMTC being related to its period. For example, the offset (offset) of SMTC has a value of {0,... Since the measurement object (Measurement Object, MO) may not contain carrier frequencies, SMTC may be configured per MO, rather than per frequency bin.

In other words, SMTC is configured by per MO. One frequency point may have a plurality of MOs and corresponds to one cell list (celllist).

In addition, the first Subframe (Subframe) in each system frame number (SYSTEM FRAME number, SFN) of the corresponding NR special cell (SPECIAL CELL, spcell) of each SMTC entity is also derived from the SMTC period and SMTC offset (periodicityAndOffset).

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

SFN mod T=(FLOOR(Offset/10));

where FLOOR represents a down-rounding operation and Offset represents SMTC Offset.

For example, if the period is greater than the length of 5 subframes (if the Periodicity IS LARGER THAN SF), the first Subframe (Subframe) is equal to the sum 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+5)), (t=ceil (Periodicity/10), CEIL represents a rounding to positive infinity, periodicity represents the SMTC period.

In some embodiments of the present application, for intra-frequency (intra-frequency) measurements of the connected state, 1 on-channel frequency layer may be configured with 2 SMTCs (SMTC 1 and SMTC 2). Alternatively, the two SMTCs may have the same offset and different periods. Alternatively, the inter-frequency measurements may be configured with SMTC1 only. Alternatively, SMTC2 may have a shorter period than SMTC1. Alternatively, the offset (offset) of SMTC2 may follow SMTC1. Alternatively, the offset of SMTC2 may be equal to the sum of the period and the offset relative to the period (periodicityAndOffset mod periodicity). Alternatively, SMTC2 only supports intra-frequency (intra-frequency) measurement configuration.

Fig. 5 is a schematic block diagram of two SMTCs provided by an embodiment of the present application.

As shown in fig. 5, the two SMTCs may be two SMTCs having different offsets and identical periods. For example, one two SMTCs have an offset of 0 and the other two SMTCs have an offset of 10ms. Furthermore, the period of both SMTCs is 40ms. The measurement window of the two SMTCs may be used to receive one or more synchronization signal/physical broadcast channel blocks (Synchronization Signal/PBCH Block, SSB).

The measurement intervals are described below.

In some embodiments of the present application, the network device may configure a User Equipment (UE) to measure a reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) of a reference signal of a common frequency, different frequency or different network target neighbor in a specific time window, and a reference signal received Quality (REFERENCE SIGNAL RECEIVING Quality, RSRQ) or a signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR) so that the UE can better implement mobility handover. The particular time window may also be referred to as a Measurement Gap (Measurement Gap).

In addition, the frequency range of the terminal equipment is less than 6GHz, and millimeter wave frequency bands above 6GHz are also introduced. Therefore, depending on whether the terminal device supports the capability of the FR1/FR2 frequency range, the configuration of the measurement intervals of per UE and per FR may be performed. I.e. the measurement intervals may comprise gapFR, gapFR, and gapUE. Optionally, the terminal device may also send a capability indication (independentGapConfig) of the independent interval (INDEPENDENT GAP) to the network device for indicating whether the measurement interval of per FR1/2 can be configured.

Alternatively gapFR1 is applicable only to FR1.gapFR1 and gapUE do not support simultaneous configuration. Alternatively, in E-UTRA and NR dual connectivity (E-UTRA-NR Dual Connectivity, EN-DC) modes, gapFR does not support NR radio resource control (Radio Resource Control, RRC) configuration, only LTE RRC can configure FR1 gap.

Alternatively gapFR2 is only applicable to FR2.gapFR2 and gapUE do not support simultaneous configuration.

Alternatively gapUE is applicable to all frequency bands, namely FR1 and FR2. In EN-DC mode, only LTE RRC can configure gapUE, no NR RRC configuration is supported. If gapFE is configured, gapFR1 or gapFR2 cannot be reconfigured.

Alternatively, for the gap of the per-UE, the UE is not allowed to transmit any data, nor is it expected to adjust the receivers of the primary and secondary carriers. If the UE supports INDEPENDENT GAP capabilities, i.e. the measurements of FR1 and FR2 can be independently unaffected, the UE can configure the measurement interval of the per-FR.

Note that FR1 and FR2 may be frequency ranges defined for 5G NR. For example, the frequency range FR1 may be the 5G Sub-6GHz (6 GHz or less) band and the frequency range FR2 may be the 5G millimeter wave band.

In some embodiments of the present application, 1 MG pattern (pattern) may be utilized and may be configured to a single (single) UE (if UE supports per-UE MG only) or a single (single) FR (if UE supports per-FR MG) within a single measurement time. The supportable MG length (mgl) includes { ms1dot5, ms3, ms3dot5, ms4, ms5dot5, ms6}, where dot represents a decimal point and the supportable MG period (mgrp) includes { ms20, ms40, ms80, ms160}.

Based on this, for non-terrestrial communication network (Non Terrestrial Network, NTN) technologies, satellite communication may be employed to provide communication services to terrestrial users. Satellite communications have many unique features over terrestrial cellular communications. For example, one satellite may cover a larger ground surface and may orbit the earth.

Therefore, for NTN technology, if a single MG pattern (pattern) and a plurality of SMTCs are continuously adopted, it is highly likely that a case where a measurement window of SMTCs cannot be covered by MG (cover) occurs, which in turn increases not only throughput loss but also mobility handover efficiency.

For example, for a network device, the flexibility of the network configuration MO will be limited, i.e. the network device will be required to align SSBs on the base station side to ensure that a single MG pattern can cover SMTCs of different frequency SSBs, or to configure the MOs in a certain order, which may lead to delay of measurement and reporting of certain candidate neighbors. For another example, for a terminal device, if SMTCs on these MOs cannot be covered by a single MG pattern, the UE is restricted to perform measurements of the corresponding MOs in sequence.

Through the at least one time calibration amount, measurement windows of different SMTCs can be aligned as much as possible, so that measurement intervals can cover (cover) the measurement windows of different SMTCs as much as possible, accordingly, loss of throughput can be reduced, and efficiency of mobility switching can be improved.

In other words, by the at least one time alignment quantity, the satellite (base station) may have a reference regional configuration SMTC (including length, period and offset) to enable the interrupt device to more intensively and efficiently complete measurements and reporting.

In particular, due to the large propagation delay of the NTN network, the actual time for the terminal device to receive the measurement reference signal of each serving cell and neighbor cell may be shifted differently with different propagation delays. Therefore, when each satellite (base station) in the NTN network configures SMTC, the offset (offset) of the measurement window is calibrated by the at least one time calibration amount, so as to help compensate for time deviation caused by the large-path transmission delay, so that SMTC of a plurality of cells are aligned as much as possible, and it is ensured that the measurement interval MG of perUE or perFR configured by the serving cell can cover the measurement window as much as possible.

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

Determining a position of a satellite based on a 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 corresponding to the position of the satellite.

For example, the preset calibration information may be calibration information of time or calibration information of location. 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.

For example, when each satellite configures a measurement object (meas-object) for a cell in a different frequency point, according to a satellite constellation diagram, a time calibration quantity for SMTC offset of a different frequency point or more to a frequency band level corresponding to the current real time can be obtained, and the time calibration quantity can be used as auxiliary information of a measured SMTC of a serving cell or a neighboring cell.

For example, the time calibration amount of SMTC offset of a certain frequency point or band configured to the terminal device may be determined or selected from the pre-configured time calibration amounts according to the satellite constellation.

The at least one time calibration quantity is obtained through the satellite positioning chart, so that not only can the protocol framework be prevented from being changed, but also the reliability of network measurement configuration can be improved, the efficiency of UE measurement is improved, and the measurement and reporting of all cells are ensured to be completed more quickly.

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

The method comprises the steps of obtaining position information of terminal equipment, obtaining propagation delay of the terminal equipment based on the position information of the terminal equipment, and determining at least one time calibration quantity based on the propagation delay of the terminal equipment.

For example, when each satellite configures a measurement object (meas-object) for a cell under a different frequency point, according to the UE position information obtained by the request, the propagation delay of the different frequency point or cell is obtained, and then the time calibration quantity for SMTC offset of the frequency point or more to the frequency band level is converted to assist in the configuration of the SMTC for the measurement of each serving cell or neighbor cell of the UE.

The at least one time calibration quantity is obtained through the position information of the terminal, so that the network equipment can be more reasonably configured with the SMTC, the measurement efficiency of the terminal equipment can be improved, even a service cell is allowed to configure shorter MG for the terminal equipment, the throughput loss can be reduced, and the mobility switching efficiency can be improved.

In some embodiments of the present application, the network device receives first report information sent by the terminal device, where the first report information includes location information of the terminal device.

For example, the network device receives the first report information periodically sent by the terminal device.

For another example, the network device sends request information to the terminal device, where the request information is used to request the terminal device to report the location information. In other words, the network device sends the request information to the terminal device before receiving the first report information.

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

and determining the at least one time calibration quantity based on the positioning measurement result of the terminal equipment.

For example, the positioning measurements include reference signal time difference measurements (RSTD), which may be referred to as delay estimate differences or receive time differences.

For example, in the case that multiple neighboring cells measure mobility of the UE at the same frequency point, the serving cell may trigger a request to UE to perform positioning measurement on cells (cell groups) of the same frequency point at the same time to obtain a positioning measurement result (e.g., a reception time difference, RSTD), or obtain a reported positioning measurement result by other means (e.g., UE RRC dedicated signaling, other network assistance messages related to geographic location). Further, the satellite base station obtains the at least one time alignment based on the positioning measurements to assist the network device in configuring SMTC per frequency bin (per frequency layer) or per group of cells (per cell group).

The at least one time calibration quantity is determined through the positioning measurement result, and compared with the determination of the at least one time calibration quantity based on the position information of the terminal equipment, the method is more real-time and accurate, in addition, the network equipment can reasonably configure the SMTC, the measurement efficiency of each terminal equipment is improved, even a service cell is allowed to configure a shorter MG for the terminal equipment, the throughput loss can be reduced, and the mobility switching efficiency can be improved.

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

For example, the network device receives the second report information periodically sent by the terminal device.

For another example, the network device sends indication information to the terminal device, where the indication information is used to instruct the terminal device to perform positioning measurement. In other words, the network device sends the indication information to the terminal device before receiving the second report information.

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

The network device sends auxiliary signaling of timing advance, TA, information to the target terminal, the auxiliary signaling comprising the at least one time alignment quantity.

The at least one time calibration quantity is carried in the auxiliary signaling of the TA information, so that the configuration of the at least one time calibration quantity can be realized, the network equipment can more reasonably configure the SMTC, the measurement efficiency of each terminal equipment is improved, even a service cell is allowed to configure a shorter MG for the terminal equipment, the throughput loss can be reduced, and the mobility switching efficiency can be improved.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be regarded as the disclosure of the present application.

It should be further understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. Further, in the embodiment of the present application, the terms "downlink" and "uplink" are used to indicate a transmission direction of a signal or data, where "downlink" is used to indicate that the transmission direction of the signal or data is a first direction of a user equipment transmitted from a station to a cell, and "uplink" is used to indicate that the transmission direction of the signal or data is a second direction of a user equipment transmitted from a cell to a station, 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 merely an association relationship describing the association object, which means that three relationships may exist. Specifically, A and/or B may represent three cases where A alone exists, while A and B exist, and B alone exists. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The method embodiments of the present application are described above in detail with reference to fig. 1 to 5, and the apparatus embodiments of the present application are described below in detail with reference to fig. 6 to 9.

Fig. 6 is a schematic block diagram of a network device 300 of an embodiment of the present application.

As shown in fig. 6, the network device 300 may include:

A determining unit 310 for determining at least one time calibration amount, which is a calibration amount for configuring SMTC time window offset for synchronization signal or physical broadcast channel block measurement timing;

A transmitting unit 320, configured to transmit the at least one time calibration quantity to a terminal.

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

Acquiring the position information of the terminal equipment;

Acquiring the propagation delay of the terminal equipment based on the position information of the terminal equipment;

The at least one time alignment is determined based on the propagation delay of the terminal device.

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

and receiving first reporting information sent by the terminal equipment, wherein the first reporting information comprises the position information of the terminal equipment.

And sending request information to the terminal equipment, wherein the request information is used for requesting the terminal equipment to report the position information.

Obtaining a positioning measurement result of the terminal equipment;

In some embodiments of the application, the positioning measurement comprises a reference signal time difference measurement RSTD.

And receiving second reporting information sent by the terminal equipment, wherein the second reporting information comprises a positioning measurement result of the terminal equipment.

and sending indication information to the terminal equipment, wherein the indication information is used for indicating the terminal equipment to perform positioning measurement.

In some embodiments of the present application, the sending unit 320 is specifically configured to:

and sending auxiliary signaling of Timing Advance (TA) information to the target terminal, wherein the auxiliary signaling comprises the at least one time calibration quantity.

In some embodiments of the present application, the at least one time alignment corresponds to a first frequency bin or a first frequency band of the terminal device.

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

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.

In some embodiments of the present application, the first frequency bin includes at least one frequency bin, or the first frequency band includes at least one frequency band.

It should be understood that apparatus embodiments and method embodiments may correspond with each other and that similar descriptions may refer to the method embodiments. Specifically, the network device 300 shown in fig. 6 may correspond to a corresponding main body in the method 200 for executing the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 300 are respectively for implementing the corresponding flow in each method in fig. 4, which are not described herein for brevity.

Fig. 7 is a schematic block diagram of a terminal device 400 of an embodiment of the present application.

As shown in fig. 7, the terminal device 400 may include:

A receiving unit 410, configured to receive at least one time calibration quantity sent by a network device;

a calibration unit 420 for calibrating the SMTC offset of the synchronization signal or the physical broadcast channel block measurement timing configuration based on the at least one time calibration amount.

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

and sending first reporting information to the network equipment, wherein the first reporting information comprises the position information of the terminal equipment.

And receiving request information sent by the network equipment, wherein the request information is used for requesting the terminal equipment to report the position information.

And sending second reporting information to the network equipment, wherein the second reporting information comprises a positioning measurement result of the terminal equipment.

In some embodiments of the present application, the receiving unit 410 is specifically configured to:

And receiving auxiliary signaling of Timing Advance (TA) information sent by the network equipment, wherein the auxiliary signaling comprises the at least one time calibration quantity.

It should be understood that apparatus embodiments and method embodiments may correspond with each other and that similar descriptions may refer to the method embodiments. Specifically, the terminal device 400 shown in fig. 7 may correspond to a corresponding main body in the method 200 for executing the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 400 are respectively for implementing the corresponding flow in each method in fig. 4, which are not described herein for brevity.

The communication device according to the embodiment of the present application is described above from the perspective of the functional module in conjunction with the accompanying drawings. It should be understood that the functional module may be implemented in hardware, or may be implemented by instructions in software, or may be implemented by a combination of hardware and software modules.

Specifically, each step of the method embodiment in the embodiment of the present application may be implemented by an integrated logic circuit of hardware in a processor and/or an instruction in a software form, and the steps of the method disclosed in connection with the embodiment of the present application may be directly implemented as a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor.

Alternatively, the software modules may be located in a well-established storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, and the like. The storage medium is located in a memory, and the processor reads information in the memory, and in combination with hardware, performs the steps in the above method embodiments.

For example, the processing unit and the communication unit referred to above may be implemented by a processor and a transceiver, respectively.

Fig. 8 is a schematic structural diagram of a communication device 500 of an embodiment of the present application.

As shown in fig. 8, the communication device 500 may include a processor 510.

Wherein the processor 510 may call and run a computer program from a memory to implement the method in an embodiment of the application.

With continued reference to fig. 8, the communication device 500 may also include a memory 520.

The memory 520 may be used for storing instruction information, and may also be used for storing code, instructions, etc. to be executed by the processor 510. Wherein the processor 510 may call and run a computer program from the memory 520 to implement the method in an embodiment of the application. The memory 520 may be a separate device from the processor 510 or may be integrated into the processor 510.

With continued reference to fig. 8, the communication device 500 may also include a transceiver 530.

The processor 510 may control the transceiver 530 to communicate with other devices, and in particular, may send information or data to other devices or receive information or data sent by other devices. The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, the number of which may be one or more.

It should be appreciated that the various components in the communication device 500 are connected by a bus system that includes a power bus, a control bus, and a status signal bus in addition to a data bus.

It should also be understood that the communication device 500 may be a terminal device according to an embodiment of the present application, and the communication device 500 may implement a corresponding flow implemented by a network device in each method according to an embodiment of the present application, that is, the communication device 500 according to an embodiment of the present application may correspond to the network device 300 according to an embodiment of the present application, and may correspond to a corresponding main body in performing the method 200 according to an embodiment of the present application, which is not described herein for brevity. Similarly, the communication device 500 may be a terminal device according to an embodiment of the present application, and the communication device 500 may implement a corresponding flow implemented by the terminal device in each method according to the embodiment of the present application. That is, the communication device 500 according to the embodiment of the present application may correspond to the terminal device 400 according to the embodiment of the present application, and may correspond to the corresponding main body in performing the method 200 according to the embodiment of the present application, which is not described herein for brevity.

In addition, the embodiment of the application also provides a chip.

For example, the chip may be an integrated circuit chip having signal processing capabilities, and the methods, steps and logic blocks disclosed in the embodiments of the present application may be implemented or performed. The chip may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc. Alternatively, the chip may be applied to various communication devices so that the communication device mounted with the chip can perform the methods, steps and logic blocks disclosed in the embodiments of the present application.

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

As shown in fig. 9, the chip 600 includes a processor 610.

Wherein the processor 610 may call and run a computer program from a memory to implement the methods of embodiments of the present application.

With continued reference to fig. 9, the chip 600 may also include a memory 620.

Wherein the processor 610 may call and run a computer program from the memory 620 to implement the method in an embodiment of the application. The memory 620 may be used to store instruction information and may also be used to store code, instructions, etc. for execution by the processor 610. The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

With continued reference to fig. 9, the chip 600 may further include an input interface 630.

The processor 610 may control the input interface 630 to communicate with other devices or chips, and in particular, may acquire information or data sent by the other devices or chips.

With continued reference to fig. 9, the chip 600 may further include an output interface 640.

Wherein the processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

It should be understood that the chip 600 may be applied to a network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, or may implement a corresponding flow implemented by a terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should also be appreciated that the various components in the chip 600 are connected by a bus system that includes a power bus, a control bus, and a status signal bus in addition to a data bus.

The processors referred to above may include, but are not limited to:

A general purpose Processor, digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field programmable gate array (Field Programmable GATE ARRAY, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like.

The processor may be configured to implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory or erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

The above references to memory include, but are not limited to:

Volatile memory and/or nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDR SDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct memory bus RAM (DR RAM).

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

There is also provided in an embodiment of the present application a computer-readable storage medium storing a computer program. The computer readable storage medium stores one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiments shown in method 200.

Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

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

Optionally, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program makes a computer execute corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program. The computer program, when executed by a computer, enables the computer to perform the method of the embodiment shown in method 200.

Optionally, the computer program may be applied to a network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

In addition, the embodiment of the present application further provides a communication system, which may include the above-mentioned terminal device and network device, so as to form a communication system 100 as shown in fig. 1, which is not described herein for brevity. It should be noted that the term "system" and the like herein may also be referred to as "network management architecture" or "network system" and the like.

It is also to be understood that the terminology used in the embodiments of the present application and the appended claims is for the purpose of describing particular embodiments only, and is not intended to be limiting of the embodiments of the present application.

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

Those of skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

If implemented as a software functional unit and sold or used as a stand-alone product, may be stored on a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be embodied in essence or a part contributing to the prior art or a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present application. The storage medium includes various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners.

For example, the division of units or modules or components in the above-described apparatus embodiments is merely a logic function division, and there may be another division manner in actual implementation, for example, multiple units or modules or components may be combined or may be integrated into another system, or some units or modules or components may be omitted or not performed.

As another example, the units/modules/components described above as separate/display components may or may not be physically separate, i.e., may be located in one place, or may be distributed over multiple network elements. Some or all of the units/modules/components may be selected according to actual needs to achieve the objectives of the embodiments of the present application.

Finally, it is pointed out that the coupling or direct coupling or communication connection between the various elements shown or discussed above can be an indirect coupling or communication connection via interfaces, devices or elements, which can be in electrical, mechanical or other forms.

The foregoing is merely a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the embodiment of the present application, and the changes or substitutions are covered by the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to 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 comprises:

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, wherein determining 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, wherein obtaining the location information of the terminal device comprises:

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, wherein determining 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 , wherein the positioning measurement result comprises a reference signal time difference measurement value RSTD.

7. The method according to claim 5, characterized in that the obtaining of the positioning measurement result of the terminal device comprises:

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, wherein 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 value corresponds to a first frequency point or a first frequency band of the terminal device.

11. The method according to claim 10 is 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 , wherein 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 , wherein 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 comprises:

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.

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

19. The method according to claim 17, characterized in that the method further comprises:

20. The method according to claim 14, wherein 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 value corresponds to a first frequency point or a first frequency band of the terminal device.

22. The method according to claim 21 is 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 , wherein 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 NTN, and the network device comprises:

A determination 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 NTN, and the terminal device comprises:

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;

27. A network device, comprising:

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, comprising:

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, comprising:

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 it is used to store a computer program, wherein the computer program enables a computer to execute the method according to any one of claims 1 to 13 or the method according to any one of claims 14 to 24.

31. A computer program product, characterized by comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method according to any one of claims 1 to 13 or the method according to any one of claims 14 to 24.