WO2022067763A1

WO2022067763A1 - Wireless communication method and device

Info

Publication number: WO2022067763A1
Application number: PCT/CN2020/119658
Authority: WO
Inventors: 胡荣贻
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-04-07
Also published as: CN116097114A

Abstract

Provided in embodiments of the present application are a wireless communication method and device. The method comprises: determining at least one time calibration quantity, the at least one time calibration quantity being a calibration quantity for a time window offset of synchronization signal/PBCH block measurement timing configuration (SMTC); and sending the at least one time calibration quantity to a terminal. By means of the at least one time calibration quantity, measurement windows of different SMTCs can be aligned as much as possible, so that the measurement gap can cover the measurement windows of different SMTCs as much as possible. Correspondingly, not only can the loss of throughput be reduced, but also the efficiency of mobility handover can be improved.

Description

Wireless communication method and device

technical field

The embodiments of the present application relate to the field of communication, and more particularly, to wireless communication methods and devices.

Background technique

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

However, for the non-terrestrial communication network (Non Terrestrial Network, NTN) technology, communication services can be provided to terrestrial users by means of satellite communication. Compared with terrestrial cellular network communication, satellite communication has many unique characteristics. For example, a satellite can cover a large ground and orbit the earth.

Therefore, for the NTN technology, if the SMTC configuration scheme in the Rel-15/16NR system continues to be adopted, it is very likely that the measurement window of the SMTC cannot be covered by the measurement interval, which not only increases the throughput loss, but also increases the throughput loss. The efficiency of mobility handover is also reduced.

SUMMARY OF THE INVENTION

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 handover.

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

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

The at least one time calibration amount is sent to the terminal.

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

Receive at least one time calibration amount sent by the network device;

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

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

In a fifth aspect, a network device is provided, including 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, so as to execute the method in the above-mentioned first aspect or each implementation manner thereof.

In a sixth aspect, a terminal device is provided, including 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, so as to execute the method in the above-mentioned second aspect or each implementation manner thereof.

In a seventh aspect, a chip is provided for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof. Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes any one of the above-mentioned first to second aspects or each of its implementations method in .

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, and the computer program causes a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each implementation manner thereof.

In a ninth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions causing a computer to execute the method in any one of the above-mentioned first to second aspects or the 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 in any one of the above-mentioned first to second aspects or the respective implementations thereof.

Based on the above technical solutions, 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 intervals can cover as many measurement windows of different SMTCs as possible. The loss of throughput can be reduced, and the efficiency of mobility handover can also be improved.

Description of drawings

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

FIG. 4 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.

FIG. 5 is a schematic flowchart of a multi-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 by 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 ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

As shown in FIG. 1 , 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 through the air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120 .

It should be understood that the embodiment of the present application only uses the communication system 100 for exemplary description, but the embodiment of the present application is 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 (Long Term Evolution, LTE) system, LTE time division duplex (Time Division Duplex, TDD), universal mobile communication system (Universal mobile communication system) Mobile Telecommunication System, UMTS), 5G communication system (also known as New Radio (New Radio, NR) communication system), or future communication systems, etc.

In the communication system 100 shown in FIG. 1 , the network device 120 may be an access network device that communicates with the terminal device 110 . An access network device may provide communication coverage for a particular geographic area, and may communicate with terminal devices 110 (eg, 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 an NR system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 can be a relay station, an access point, a vehicle-mounted device, a wearable Devices, hubs, switches, bridges, routers, or network devices in the future evolved Public Land Mobile Network (PLMN).

The terminal device 110 may be any terminal device, which includes, but is not limited to, a terminal device that adopts a wired or wireless connection with the network device 120 or other terminal devices.

For example, the terminal equipment 110 may refer to an access terminal, a user equipment (UE), a subscriber unit, a subscriber 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, user agent, or 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 wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, end devices in 5G networks or end devices in future evolved networks, etc.

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

The wireless communication system 100 may further include a core network device 130 that communicates 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), another example, authentication server function (Authentication Server Function, AUSF), another example, user plane function (User Plane Function, UPF), another example, 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 an LTE network, for example, a session management function+core network data gateway (Session Management Function+Core Packet Gateway, SMF+PGW- C) Equipment. It should be understood that the SMF+PGW-C can simultaneously implement the functions that the SMF and the PGW-C can implement. In the process of network evolution, the above-mentioned core network equipment may also be called by other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited in this embodiment of the present application.

The various functional units in the communication system 100 may also establish a connection through a next generation network (next generation, NG) interface to implement communication.

For example, the terminal equipment establishes an air interface connection with the access network equipment through the NR interface to transmit user plane data and control plane signaling; the terminal equipment can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); access Network equipment, 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 equipment can establish a control plane signaling with the AMF through the NG interface 2 (N2 for short). connection; UPF can establish a control plane signaling connection with SMF through NG interface 4 (N4 for short); UPF can exchange user plane data with the data network through NG interface 6 (N6 for short); AMF can communicate with SMF through NG interface 11 (N11 for short) The SMF establishes a control plane signaling connection; the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (N7 for short).

FIG. 1 exemplarily shows one base station, one core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and the coverage area of each base station may include other numbers of terminals equipment, which is not limited in this embodiment of the present application.

FIG. 2 is a schematic structural diagram of another communication system provided by an embodiment of the present application.

As shown in FIG. 2 , a terminal device 1101 and a satellite 1102 are included, 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 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 2 , the satellite 1102 can function as a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. Under the system architecture, 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 the coverage of each network device 1102 may include other numbers of terminal devices, which are not limited in this embodiment of the present application.

FIG. 3 is a schematic structural diagram of another communication system provided by an embodiment of the present application.

As shown in FIG. 3 , it includes a terminal device 1201 , a satellite 1202 and a base station 1203 , the terminal device 1201 and the satellite 1202 can communicate wirelessly, and the satellite 1202 and the base station 1203 can communicate. 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 the base station, and the 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, the communication system may include multiple network devices 1203, and the coverage of each network device 1203 may include other numbers of terminal devices, which are not limited in this embodiment of the present application. The network device 1203 may be the network device 120 in FIG. 1 .

It should be understood that the above-mentioned satellite 1102 or satellite 1202 includes but is not limited to:

Low-Earth Orbit (Low-Earth Orbit,) LEO satellites, Medium-Earth Orbit (MEO) satellites, Geostationary Earth Orbit (Geostationary Earth Orbit, GEO) satellites, High Elliptical Orbit (High Elliptical Orbit, HEO) satellites, etc. Wait. 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 increase the system capacity of the entire satellite communication system.

As an example, the altitude range of LEO can be 500km to 1500km, the corresponding orbital period can be about 1.5 hours to 2 hours, the signal propagation delay of single-hop communication between users can generally be less than 20ms, the maximum satellite visibility time can be 20 minutes, LEO The signal propagation distance is short and the link loss is small, and the transmit power requirements of the user terminal are not high. The orbital height 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.

It should be noted that, FIG. 1 to FIG. 3 only illustrate systems to which the present application applies in the form of examples, and of course, the methods shown in the embodiments of the present application may also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship. It should also be understood that the "instruction" mentioned in the embodiments of this application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

FIG. 4 shows a schematic flowchart of a wireless pain communication method 200 according to an embodiment of the present application, and the method 200 may be executed interactively by a terminal device and a network device. The terminal device shown in FIG. 2 may be the terminal device shown in FIG. 1 to FIG. 3 , and the network device shown in FIG. 2 may be the access network device shown in FIG. 1 to FIG. 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 amount, where the at least one time calibration amount is a calibration amount for configuring the SMTC time window offset for the synchronization signal or the physical broadcast channel block measurement timing.

S220, the network device sends the at least one time calibration amount 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 auxiliary 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 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.

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

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 set of time calibration amounts.

To facilitate understanding of the present application, the SMTC is described below.

In some embodiments of the present application, the configuration of the SMTC may support {5, 10, 20, 40, 80, 160} ms periods and {1, 2, 3, 4, 5} ms window lengths, corresponding to the The offset (offset) is related to its period. For example, the value of the offset (offset) of the SMTC is {0, . . . , period-1}. Since a measurement object (Measurement Object, MO) may not contain a carrier frequency, the SMTC can be configured for each MO instead of each frequency point.

In other words, SMTC is configured by per MO. A frequency point may have multiple MOs and correspond to a cell list.

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 determined by the SMTC period and the SMTC offset (periodicityAndOffset). )get.

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

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

Among them, FLOOR represents the round-down operation, and Offset represents the SMTC offset.

For example, if the period is greater than the length of 5 subframes (if the Periodicity is larger than sf5), the first subframe (Subframe) is equal to the offset and the remainder of 10 (subframe=Offset mod 10); otherwise, the first subframe Subframe (Subframe) is equal to the offset or the value after the offset plus 5 (subframe=Offset or(Offset+5)); T=CEIL (Periodicity/10), CEIL means rounding to positive infinity, Periodicity means SMTC period .

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

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 with different offsets and the same period. For example, one two SMTCs have an offset of 0 and the other two SMTCs have an offset of 10ms. In addition, the periods of the two two SMTCs are both 40ms. The measurement windows of the two two SMTCs can be used to receive one or more synchronization signals/physical broadcast channel blocks (Synchronization Signal/PBCH Block, SSB).

The measurement interval will be described below.

In some embodiments of the present application, the network device may configure the user equipment (User Equipment, UE) to measure the reference signal received power (Reference Signal Received Power) of the reference signal of the same-frequency, inter-frequency or inter-network target neighbor cells in a specific time window Receiving Power, RSRP), reference signal receiving quality (Reference Signal Receiving Quality, RSRQ) or signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR), so that UE can better realize mobility handover. A specific time window can also be referred to as a Measurement Gap.

In addition, the frequency range of terminal equipment is not only below 6GHz, but also introduces the millimeter wave frequency band above 6GHz. Therefore, the measurement interval can be configured per UE and per FR according to whether the terminal equipment supports the capability of the FR1/FR2 frequency range. That is, the measurement interval may include gapFR1, gapFR2, and gapUE. Optionally, the terminal device may also send an independent gap (independent gap) capability indication (independentGapConfig) to the network device, which is used to indicate whether the measurement gap of per FR1/2 can be configured.

Optionally, gapFR1 applies only to FR1. gapFR1 and gapUE do not support simultaneous configuration. Optionally, in E-UTRA-NR Dual Connectivity (EN-DC) mode, gapFR1 does not support NR Radio Resource Control (RRC) configuration, only LTE RRC can configure FR1gap .

Optionally, gapFR2 only works with FR2. gapFR2 and gapUE do not support simultaneous configuration.

Optionally, gapUE applies to all frequency bands, namely 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 again.

Optionally, for the per-UE gap, the UE is not allowed to send any data, and does not expect 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 independently unaffected, the UE can configure the measurement interval of per-FR.

It should be noted that FR1 and FR2 can be the frequency range defined by 5G NR. For example, the frequency range FR1 may be the 5G Sub-6GHz (below 6GHz) band, and the frequency range FR2 may be the 5G millimeter wave band.

In some embodiments of the present application, 1 MG pattern can be used to configure a single UE (if UE supports per-UE MG only) or a single FR (if UE) within a measurement time supports per-FR MG). 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}.

Based on this, for the non-terrestrial communication network (Non Terrestrial Network, NTN) technology, communication services can be provided to terrestrial users by means of satellite communication. Compared with terrestrial cellular network communication, satellite communication has many unique characteristics. For example, a satellite can cover a large ground and orbit the earth.

Therefore, for the NTN technology, if a single MG pattern and multiple SMTCs continue to be 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 handoffs.

For example, for network equipment, the flexibility of network configuration MO will be limited, that is, network equipment is required to align SSBs at the base station side to ensure that a single MG pattern can cover SMTC of different frequency SSBs, or configure MOs in a certain order, which will cause delays Measurement and reporting of some candidate neighbors. For another example, for the 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.

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 the measurement windows of different SMTCs as much as possible, and accordingly, not only can the loss of throughput be reduced , and can also improve the efficiency of mobility handover.

In other words, through the at least one time calibration amount, the satellite (base station) can have a reference area to configure the SMTC (including length, period and offset), so that the interrupting device can complete the measurement and reporting more centrally and efficiently.

In particular, due to the large propagation delay of the NTN network, the actual time for the terminal equipment to receive the measurement reference signal of each serving cell and neighboring cells will vary with different propagation delays. Therefore, when each satellite (base station) in the NTN network is configured with SMTC, the offset (offset) of the measurement window is calibrated by the at least one time calibration amount, which helps to compensate for the time offset caused by the large path transmission delay, so that the The SMTCs of multiple cells should be aligned as much as possible to ensure that the per UE or per FR measurement interval MG configured in the serving cell can cover as much of the measurement window as possible.

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

determining the location of the satellite based on a satellite positioning map of the satellite;

The at least one time calibration amount is determined or selected based on the positions of the satellites and preset calibration information corresponding to the positions of the satellites.

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

For example, when each satellite configures measurement objects (meas-objects) for cells at different frequencies, it can obtain the current real-time corresponding time for SMTC offsets at different frequencies or greater to the frequency band level according to the satellite constellation map The calibration amount, which can be used as auxiliary information of the SMTC measured by the serving cell or the neighboring cell.

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

Obtaining the at least one time calibration amount by using the 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 that all cell measurements are completed and reported more quickly.

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

Obtain location information of the terminal device; obtain a propagation delay of the terminal device based on the location information of the terminal device; determine the at least one time calibration amount based on the propagation delay of the terminal device.

For example, when each satellite configures a measurement object (meas-object) for cells at different frequencies, it obtains the propagation delays of different frequencies or cells according to the UE location information obtained by request, and then converts it into a frequency or larger The amount of time calibration for the SMTC offset to the frequency band level to assist the configuration of the measured SMTC for each serving or neighbor cell of the UE.

Obtaining the at least one time calibration amount through the location information of the terminal enables the network device to configure the SMTC more reasonably, improves the measurement efficiency of the terminal device, and even allows the serving cell to configure a shorter MG for the terminal device, which not only reduces the Throughput loss can also improve the efficiency of mobility handover.

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 location information. In other words, before receiving the first report information, the network device sends the request information to the terminal device.

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

Obtaining a positioning measurement result of the terminal device; and determining the at least one time calibration amount based on the positioning measurement result of the terminal device.

For example, the positioning measurement result includes a reference signal time difference measurement (Reference Signal Time Difference measurement, RSTD), and the reference signal time difference measurement value may be referred to as a delay estimation difference or a reception time difference.

For example, in the case where multiple neighboring cells measure the mobility of the UE at the same frequency, the serving cell can trigger and request the UE to perform positioning measurement on the same frequency cell group at the same time to obtain the positioning measurement results (such as the receiving time difference, RSTD), or obtain the reported positioning measurement results through other methods (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, so as to assist the network device to configure the SMTC according to each frequency point (per frequency layer) or each group of cells (per cell group).

Determining the at least one time calibration amount based on the positioning measurement result is more accurate in real time than determining the at least one time calibration amount based on the location information of the terminal device. In addition, the network device can configure the SMTC more reasonably to improve each The efficiency measured by the terminal equipment even allows the serving cell to configure a shorter MG for the terminal equipment, which can not only reduce throughput loss, but also improve the efficiency of mobility handover.

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, before receiving the second reporting information, the network device sends the indication information to the terminal device.

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, where the auxiliary signaling includes the at least one time calibration amount.

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, thereby enabling the network device to configure the SMTC more reasonably, improving the performance of each terminal device. The measured efficiency even allows the serving cell to configure the terminal device with a shorter MG, which not only reduces throughput loss, but also improves mobility handover efficiency.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application. These simple modifications all belong to the protection scope of the present application. For example, the various specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner under the condition of no contradiction. In order to avoid unnecessary repetition, this application does not describe the various possible combinations. State otherwise. For another example, the various embodiments of the present application can also be combined arbitrarily, as long as they do not violate the idea of the present application, they should also be regarded as the content disclosed in the present application.

It should also be understood that, in the various method embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the present application. The implementation of the embodiments constitutes no limitation. In addition, in the embodiments of the present application, the terms "downlink" and "uplink" are used to indicate the transmission direction of signals or data, wherein "downlink" is used to indicate that the transmission direction of signals or data is from the site to the user equipment of the cell In the first direction, "uplink" is used to indicate that the transmission direction of the signal or data is the 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 this embodiment of the present application, the term "and/or" is only an association relationship for describing associated objects, indicating that there may be three kinds of relationships. Specifically, A and/or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this text generally indicates that the related objects are an "or" relationship.

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

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

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

a determining unit 310, configured to determine at least one time calibration amount, where the at least one time calibration amount is a calibration amount for configuring the SMTC time window offset for the synchronization signal or physical broadcast channel block measurement timing;

The sending unit 320 is configured to send the at least one time calibration amount to the terminal.

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

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.

obtain the location information of the terminal device;

obtaining the propagation delay of the terminal device based on the location information of the terminal device;

The at least one time calibration amount 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:

Receive first report information sent by the terminal device, where the first report information includes location information of the terminal device.

Sending request information to the terminal device, where the request information is used to request the terminal device to report location information.

obtaining a positioning measurement result of the terminal device;

The at least one time calibration amount is determined based on the location measurements of the terminal device.

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

Receive second report information sent by the terminal device, where the second report information includes a positioning measurement result of the terminal device.

Sending indication information to the terminal device, where the indication information is used to instruct the terminal device to perform positioning measurement.

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

Sending auxiliary signaling of timing advance TA information to the target terminal, the auxiliary signaling including the at least one time calibration amount.

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.

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

It should be understood that the apparatus embodiments and the method embodiments may correspond to each other, and similar descriptions may refer to the method embodiments. Specifically, the network device 300 shown in FIG. 6 may correspond to the corresponding subject in executing 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 for the purpose of realizing the method shown in FIG. 4 . For the sake of brevity, the corresponding processes in each of the methods are not repeated here.

FIG. 7 is a schematic block diagram of a terminal device 400 according to 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 amount sent by the network device;

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

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

Send first report information to the network device, where the first report information includes location information of the terminal device.

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

Send second report information to the network device, where the second report information includes a positioning measurement result of the terminal device.

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

Receive auxiliary signaling of timing advance TA information sent by the network device, where the auxiliary signaling includes the at least one time calibration amount.

It should be understood that the apparatus embodiments and the method embodiments may correspond to each other, and similar descriptions may refer to the method embodiments. Specifically, the terminal device 400 shown in FIG. 7 may correspond to the corresponding subject in executing the method 200 of the embodiment of the present application, and the aforementioned and other operations and/or functions of the various units in the terminal device 400 are respectively for the purpose of realizing the method shown in FIG. 4 . For the sake of brevity, the corresponding processes in each of the methods are not repeated here.

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

Specifically, the steps of the method embodiments in the embodiments of the present application may be completed by hardware integrated logic circuits in the processor and/or instructions in the form of software, and the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as hardware The execution of the decoding processor is completed, or the execution is completed by a combination of hardware and software modules in the decoding processor.

Optionally, the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, and other storage media mature in the art. 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 embodiments in combination with its hardware.

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 according to an embodiment of the present application.

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

The processor 510 may call and run a computer program from the memory to implement the methods in the embodiments of the present application.

Continuing to refer to FIG. 8 , the communication device 500 may further include a memory 520 .

Wherein, the memory 520 may be used to store instruction 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 methods in the embodiments 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 .

Continuing to refer to FIG. 8 , the communication device 500 may further include a transceiver 530 .

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

It should be understood that each component in the communication device 500 is connected through a bus system, wherein the bus system 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 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. The communication device 500 may correspond to the network device 300 in the embodiment of the present application, and may correspond to the corresponding subject in executing the method 200 according to the embodiment of the present application, which is not repeated here for brevity. Similarly, the communication device 500 may be the terminal device of the embodiments of the present application, and the communication device 500 may implement the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. That is to say, the communication device 500 in 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 executing the method 200 according to the embodiment of the present application, which is not omitted here for brevity. Repeat.

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

For example, the chip may be an integrated circuit chip, which has a signal processing capability, and can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The chip may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like. Optionally, the chip can be applied to various communication devices, so that the communication device installed with the chip can execute the methods, steps and logic block diagrams 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 .

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

Please continue to refer to FIG. 9 , the chip 600 may further include a memory 620 .

The processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application. The memory 620 may be used to store instruction information, and may also be used to store codes, instructions and the like 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 .

Please continue to refer 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 specifically, may acquire information or data sent by other devices or chips.

Please continue to refer to FIG. 9 , the chip 600 may further include an output interface 640 .

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

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 in the embodiments of the present application, and can also implement the various methods in the embodiments of the present application. For the sake of brevity, the corresponding process implemented by the terminal device in FIG. 1 is not repeated here.

It should also be understood that various components in the chip 600 are connected through a bus system, wherein the bus system 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:

General-purpose processor, Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates Or transistor logic devices, discrete hardware components, and so on.

The processor may be used to implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

The memory mentioned above includes but is not limited to:

Volatile memory and/or non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, 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 random access memory (Direct Rambus RAM, DR RAM).

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

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program. The computer-readable storage medium stores one or more programs, the one or more programs including instructions that, when executed by a portable electronic device including a plurality of application programs, enable the portable electronic device to perform the implementation shown in method 200 example method.

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 brevity, here No longer.

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 each method of the embodiments of the present application. , and are not repeated here for brevity.

The embodiments of the present application also provide a computer program product, including a computer program.

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 each method of the embodiments of the present application. Repeat.

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 each method of the embodiments of the present application, in order to It is concise and will not be repeated here.

A computer program is also provided in the embodiments of the present application. When the computer program is executed by a computer, the computer can execute the method of the embodiment shown in method 200 .

Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.

In addition, an embodiment of the present application further provides a communication system, which may include the above-mentioned terminal equipment and network equipment to form a communication system 100 as shown in FIG. 1 , which is not repeated here for brevity. It should be noted that the terms "system" and the like in this document may also be referred to as "network management architecture" or "network system" and the like.

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

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

Those skilled in the art can realize 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. Experts may use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of the embodiments of the present application.

If implemented in the form of a software functional unit and sold or used as a stand-alone product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that make contributions to the prior art or the parts of the technical solutions, and the computer software products are 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 execute all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk and other media that can store program codes.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

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

For example, the division of units, modules or components in the apparatus embodiments described above is only a logical function division, and other division methods may be used in actual implementation. For example, multiple units, modules or components may be combined or integrated. To another system, or some units or modules or components can be ignored, or not implemented.

For another example, the above-mentioned units/modules/components described as separate/display components may or may not be physically separated, that is, may be located in one place, or may be distributed to 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.

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

The above contents are only specific implementations of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Changes or substitutions should all be covered within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

A wireless communication method, comprising:

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

The at least one time calibration amount is sent to the terminal.
The method according to claim 1, wherein the determining at least one time calibration amount comprises:

determining the location of the satellite based on a satellite positioning map of the satellite;

The at least one time calibration amount is determined or selected based on the satellite's position and preset calibration information.
The method according to claim 1 or 2, wherein the determining at least one time calibration amount comprises:

obtain the location information of the terminal device;

obtaining the propagation delay of the terminal device based on the location information of the terminal device;

The at least one time calibration amount is determined based on the propagation delay of the terminal device.
The method according to claim 3, wherein the acquiring the location information of the terminal device comprises:

Receive first report information sent by the terminal device, where the first report information includes location information of the terminal device.
The method according to claim 4, wherein the method further comprises:

Sending request information to the terminal device, where the request information is used to request the terminal device to report location information.
The method according to any one of claims 1 to 5, wherein the determining at least one time calibration amount comprises:

obtaining a positioning measurement result of the terminal device;

The at least one time calibration amount is determined based on the location measurements of the terminal device.
The method according to claim 6, wherein the positioning measurement result comprises a reference signal time difference measurement value RSTD.
The method according to claim 6, wherein the acquiring a positioning measurement result of the terminal device comprises:

Receive second report information sent by the terminal device, where the second report information includes a positioning measurement result of the terminal device.
The method according to claim 8, wherein the method further comprises:

Sending indication information to the terminal device, where the indication information is used to instruct the terminal device to perform positioning measurement.
The method according to any one of claims 1 to 9, wherein the sending the at least one time calibration amount to the target terminal comprises:

Sending auxiliary signaling of timing advance TA information to the target terminal, the auxiliary signaling including the at least one time calibration amount.
The method according to any one of claims 1 to 10, wherein the at least one time calibration amount corresponds to a first frequency point or a first frequency band of the terminal device.
The method according to claim 11, wherein the first frequency point or the first frequency band corresponds to at least one measurement object MO.
The method according to claim 11, wherein the first frequency point or the first frequency band corresponds to at least one group of cells or at least one cell list.
The method according to claim 11, wherein the first frequency point includes at least one frequency point, or the first frequency band includes at least one frequency band.
A wireless communication method, comprising:

Receive at least one time calibration amount sent by the network device;

The synchronization signal or physical broadcast channel block measurement timing configuration SMTC offset is calibrated based on the at least one time calibration amount.
The method of claim 15, wherein the method further comprises:

Send first report information to the network device, where the first report information includes location information of the terminal device.
The method of claim 16, wherein 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.
The method according to any one of claims 15 to 17, wherein the method further comprises:

Send second report information to the network device, where the second report information includes a positioning measurement result of the terminal device.
The method of claim 18, wherein the positioning measurement result comprises a reference signal time difference measurement value RSTD.
The method of claim 18, wherein the method further comprises:

Sending indication information to the terminal device, where the indication information is used to instruct the terminal device to perform positioning measurement.
The method according to any one of claims 15 to 20, wherein the receiving at least one time calibration amount sent by the network device comprises:

Receive auxiliary signaling of timing advance TA information sent by the network device, where the auxiliary signaling includes the at least one time calibration amount.
The method according to any one of claims 15 to 21, wherein the at least one time calibration amount corresponds to a first frequency point or a first frequency band of the terminal device.
The method according to claim 22, wherein the first frequency point or the first frequency band corresponds to at least one measurement object MO.
The method according to claim 22, wherein the first frequency point or the first frequency band corresponds to at least one group of cells or at least one cell list.
The method according to claim 22, wherein the first frequency point includes at least one frequency point, or the first frequency band includes at least one frequency band.
A network device, characterized in that it includes:

a determining unit, configured to determine at least one time calibration amount, where the at least one time calibration amount is a calibration amount for configuring the SMTC time window offset for the synchronization signal or the physical broadcast channel block measurement timing;

A sending unit, configured to send the at least one time calibration amount to the terminal.
A wireless communication method, comprising:

a receiving unit, configured to receive at least one time calibration amount sent by the network device;

A calibration unit configured to calibrate the synchronization signal or the physical broadcast channel block measurement timing configuration SMTC offset based on the at least one time calibration amount.
A network device, characterized in that it includes:

A processor, a memory and a transceiver, the memory for storing a computer program, the processor for invoking and running the computer program stored in the memory to perform the method of any one of claims 1 to 14.
A terminal device, characterized in that it includes:

A processor, a memory and a transceiver, the memory for storing a computer program, the processor for invoking and running the computer program stored in the memory to perform the method of any one of claims 15 to 25.
A chip, characterized in that, comprising:

A processor for invoking and running a computer program from a memory, so that a device equipped with the chip executes the method as claimed in any one of claims 1 to 14 or executes the method described in any one of claims 15 to 25 Methods.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method as claimed in any one of claims 1 to 14 or to execute any one of claims 15 to 25 the method described.
A computer program product, characterized in that it comprises computer program instructions that cause a computer to perform the method of any one of claims 1 to 14 or to perform the method of any one of claims 15 to 25 Methods.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 1 to 14 or to perform the method of any one of claims 15 to 25.