Wireless communication method, terminal device and network device

Abstract

The embodiment of the application provides a wireless communication method, a terminal device and a network device. The method comprises: performing cell selection and / or cell reselection based on a first adjustment amount; wherein the first adjustment amount is used to represent an adjustment amount of a new cell signal quality of a terminal device when a new cell arrives compared with a serving cell signal quality of the terminal device when the serving cell leaves or when the new cell arrives. In the embodiment of the application, after introducing the configuration of the adjustment amount, when the new cell arrives, the terminal device can obtain the new cell signal quality as soon as possible, avoids that the terminal device can obtain the new cell signal quality only after measuring the new cell at T2, shortens the acquisition time of the new cell signal quality of the terminal device, makes the terminal device access the cell faster, reduces the service interruption time and improves the communication quality.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communications, and more particularly, to a wireless communication method, a terminal device and a network device. BACKGROUND

[0002] In a new radio (NR) system, a non-terrestrial network (NTN) is considered to be used to provide communication services to users.

[0003] After the introduction of NTN, when the satellite moves at a high speed, the connection between the satellite and the ground gateway also needs to be switched. Specifically, if two ground gateways are connected to two ground base stations or two cells under one ground base station, all user equipment (UE) in the area covered by the satellite needs to be switched from the original cell to the new cell after the feeder link switch. However, due to the large distance between the satellite and the ground in the NNT, the signal transmission delay between the terminal device and the satellite is also large. At this time, if the signal quality is obtained by the way of radio resource management (RRM) measurement, the waiting time will be too long, which may cause service interruption and reduce the communication quality.

[0004] Therefore, there is an urgent need for a method that can quickly access a new cell for NTN. SUMMARY

[0005] Embodiments of the present application provide a wireless communication method, a terminal device and a network device, which can quickly access a new cell for NTN, thereby reducing service interruption and improving communication quality.

[0006] In a first aspect, the embodiments of the present application provide a wireless communication method, comprising:

[0007] performing cell selection and / or cell reselection based on a first adjustment amount;

[0008] The first adjustment amount is used to represent the adjustment amount of the new cell signal quality of the terminal device when the new cell arrives compared with the service cell signal quality when the service cell leaves or the service cell signal quality of the terminal device when the new cell arrives.

[0009] In a second aspect, the embodiments of the present application provide a wireless communication method, comprising:

[0010] sending configuration information of a service cell;

[0011] The configuration information includes a first adjustment amount, and the first adjustment amount is used to represent an adjustment amount of a new cell signal quality of the terminal device when the new cell arrives compared with a serving cell signal quality of the terminal device when the serving cell leaves or when the new cell arrives.

[0012] In a third aspect, a terminal device is provided, which is configured to perform the method in the first aspect or any of the implementation forms thereof. Specifically, the terminal device includes functional modules configured to perform the method in the first aspect or any of the implementation forms thereof.

[0013] In an implementation form, the terminal device can include a processing unit configured to perform functions related to information processing. For example, the processing unit can be a processor.

[0014] In an implementation form, the terminal device can include a sending unit and / or a receiving unit. The sending unit is configured to perform functions related to sending, and the receiving unit is configured to perform functions related to receiving. For example, the sending unit can be a transmitter or a transmitter chip, and the receiving unit can be a receiver or a receiver chip. For another example, the terminal device is a communication chip, and the sending unit can be an input circuit or an interface of the communication chip, and the receiving unit can be an output circuit or an interface of the communication chip.

[0015] In a fourth aspect, a network device is provided, which is configured to perform the method in the second aspect or any of the implementation forms thereof. Specifically, the network device includes functional modules configured to perform the method in the second aspect or any of the implementation forms thereof.

[0016] In an implementation form, the network device can include a processing unit configured to perform functions related to information processing. For example, the processing unit can be a processor.

[0017] In an implementation form, the network device can include a sending unit and / or a receiving unit. The sending unit is configured to perform functions related to sending, and the receiving unit is configured to perform functions related to receiving. For example, the sending unit can be a transmitter or a transmitter chip, and the receiving unit can be a receiver or a receiver chip. For another example, the network device is a communication chip, and the receiving unit can be an input circuit or an interface of the communication chip, and the sending unit can be an output circuit or an interface of the communication chip.

[0018] In a fifth aspect, a terminal device is provided, which includes a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to perform the method in the first aspect or any of the implementation forms thereof.

[0019] In an implementation form, the processor is one or more, and the memory is one or more.

[0020] In an implementation form, the memory can be integrated with the processor, or the memory is located separately from the processor.

[0021] In an implementation form, the terminal device further comprises a transmitter (transmitter) and a receiver (receiver).

[0022] In a sixth aspect, the present application provides a network device, comprising a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory, so as to execute the method in the second aspect or each implementation form thereof.

[0023] In an implementation form, the processor is one or more, and the memory is one or more.

[0024] In an implementation form, the memory can be integrated with the processor, or the memory is located separately from the processor.

[0025] In an implementation form, the network device further comprises a transmitter (transmitter) and a receiver (receiver).

[0026] In a seventh aspect, the present application provides a chip for implementing the method in any one of the first aspect to the second aspect or each implementation form thereof. Specifically, the chip comprises a processor configured to invoke and run a computer program from a memory, so that a device installed with the chip executes the method in any one of the first aspect to the second aspect or each implementation form thereof.

[0027] In an eighth aspect, the present application provides a computer readable storage medium for storing a computer program, the computer program causing a computer to execute the method in any one of the first aspect to the second aspect or each implementation form thereof.

[0028] In a ninth aspect, the present application provides a computer program product comprising computer program instructions, the computer program instructions causing a computer to execute the method in any one of the first aspect to the second aspect or each implementation form thereof.

[0029] In a tenth aspect, the present application provides a computer program which, when running on a computer, causes the computer to execute the method in any one of the first aspect to the second aspect or each implementation form thereof.

[0030] In this embodiment, by introducing a first adjustment amount, the signal quality of the new cell of the terminal device can be directly determined based on the first adjustment amount. Then, cell selection and / or cell reselection can be performed based on the signal quality of the new cell of the terminal device. This avoids the need to first measure the signal quality of the new cell of the terminal device based on RRM after the arrival of the new cell, and then perform cell selection and / or cell reselection based on the signal quality of the new cell of the terminal device. That is, it avoids the waiting time for obtaining the signal quality through RRM measurement. In other words, by introducing the first adjustment amount, the waiting time for obtaining the signal quality of the new cell can be shortened, so that the terminal can obtain the signal quality of the new cell of the terminal device earlier, thereby enabling the terminal to access the new cell earlier, reducing service interruption and improving communication quality. Attached Figure Description

[0031] Figures 1 to 3 This is a schematic block diagram of the system framework provided in the embodiments of this application.

[0032] Figure 4 and Figure 5 Schematic diagrams of NTN scenarios based on transparent relay satellites and regenerative relay satellites are shown respectively.

[0033] Figure 6 This is an example of a scenario where the connection between the satellite and the ground gateway is switched, as provided in the embodiments of this application.

[0034] Figure 7 This is a schematic flowchart of the wireless communication method provided in the embodiments of this application.

[0035] Figure 8 This is another example of a scenario where the connection between the satellite and the ground gateway is switched, as provided in the embodiments of this application.

[0036] Figure 9 This is another illustrative flowchart of the wireless communication method provided in the embodiments of this application.

[0037] Figure 10 This is a schematic block diagram of the terminal device provided in the embodiments of this application.

[0038] Figure 11 This is a schematic block diagram of a network device provided in an embodiment of this application.

[0039] Figure 12 This is a schematic block diagram of a communication device provided in an embodiment of this application.

[0040] Figure 13 This is a schematic block diagram of the chip provided in the embodiments of this application. Detailed Implementation

[0041] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0042] Figure 1 is a schematic diagram of an application scenario of an embodiment of the present application.

[0043] As Figure 1 shown, the communication system 100 can include a terminal device 110 and a network device 120. The network device 120 can communicate with the terminal device 110 through an air interface. The terminal device 110 and the network device 120 support multi-service transmission.

[0044] It should be understood that the embodiments of the present application are only exemplarily described with the communication system 100, but the embodiments of the present application are not limited thereto. That is, the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunication System (UMTS), a 5G communication system (also referred to as a New Radio (NR) communication system), or a future communication system, etc.

[0045] In Figure 1 the communication system 100 shown, the network device 120 can be an access network device that communicates with the terminal device 110. The access network device can provide communication coverage for a specific geographic area and can communicate with the terminal device 110 (for example, a UE) located in the coverage area.

[0046] The network device 120 can be an Evolutional Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0047] The terminal device 110 can be any terminal device, including but not limited to a terminal device that uses a wired or wireless connection with the network device 120 or other terminal devices.

[0048] For example, the terminal device 110 can refer to an access terminal, a user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal can be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having wireless communication function, 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 evolved network, and the like.

[0049] The terminal device 110 can be used for Device to Device (D2D) communication.

[0050] The wireless communication system 100 can further include a core network device 130 in communication with the base station, which can be a 5G core network (5GC) device, for example, an Access and Mobility Management Function (AMF), for another example, an Authentication Server Function (AUSF), for another example, a User Plane Function (UPF), for another example, a Session Management Function (SMF). Alternatively, the core network device 130 can also be an Evolved Packet Core (EPC) device of an LTE network, for example, a Session Management Function + Core Packet Gateway (SMF + PGW-C) device. It should be understood that the SMF + PGW-C can simultaneously implement the functions that can be implemented by the SMF and the PGW-C. In the process of network evolution, the above-mentioned core network device can also be called other names, or new network entities can be formed by dividing the functions of the core network, and the embodiments of the present application do not limit this.

[0051] The various functional units in the communication system 100 can also be connected and communicate through a next generation (NG) interface.

[0052] For example, the terminal device establishes an air interface connection with the access network device through the NR interface, for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (referred to as N1); the access network device, for example, a next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (referred to as N3); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (referred to as N2); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (referred to as N4); the UPF can interact with the user plane data of the data network through the NG interface 6 (referred to as N6); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (referred to as N11); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (referred to as N7).

[0053] Figure 1 Exemplarily, one base station, one core network device and two terminal devices are shown, optionally, the wireless communication system 100 can include multiple base station devices and each base station can include other numbers of terminal devices within its coverage, which is not limited by the embodiments of the present application.

[0054] In a new radio (NR) system, a non-terrestrial network (NTN) is considered to provide communication services to users. The NTN generally provides communication services to ground users in the form of satellite communication. Compared with ground cellular network communication, satellite communication has many unique advantages. First, satellite communication is not limited by the user's region. For example, general terrestrial communication cannot cover oceans, mountains, deserts and other areas where communication equipment cannot be set up or where communication coverage cannot be provided due to sparse population. However, for satellite communication, since a satellite can cover a large area of the earth, and the satellite can orbit the earth, in theory, every corner of the earth can be covered by satellite communication. Second, satellite communication has great social value. Satellite communication can cover remote mountainous areas, poor countries or regions at a low cost, so that people in these areas can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital gap with developed areas and promoting the development of these areas. Third, satellite communication has a long distance, and the cost of communication does not increase significantly as the communication distance increases. Finally, satellite communication has high stability and is not limited by natural disasters.

[0055] Figure 2 Another architecture diagram of a communication system provided by the embodiments of the present application is provided.

[0056] As Figure 2As shown, the system includes terminal device 1101 and satellite 1102, which can communicate wirelessly. The network formed between terminal device 1101 and satellite 1102 can also be called an NTN. Figure 2 In the architecture of the communication system shown, satellite 1102 can function as a base station, and terminal device 1101 and satellite 1102 can communicate directly. In this system architecture, satellite 1102 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices 1102, and the coverage area of ​​each network device 1102 may include other numbers of terminal devices; this application does not limit this aspect.

[0057] Figure 3 This is a schematic diagram of the architecture of another communication system provided in an embodiment of this application.

[0058] like Figure 3 As shown, the system includes terminal device 1201, satellite 1202, and base station 1203. Terminal device 1201 and satellite 1202 can communicate wirelessly, and satellite 1202 can communicate with base station 1203. The network formed by terminal device 1201, satellite 1202, and base station 1203 can also be called an NTN. Figure 3 In the architecture of the communication system shown, satellite 1202 may not function as a base station, and communication between terminal device 1201 and base station 1203 requires relay through satellite 1202. In this system architecture, base station 1203 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices 1203, and the coverage area of ​​each network device 1203 may include other numbers of terminal devices; this application does not limit this. The network device 1203 may be... Figure 1 Network device 120.

[0059] It should be understood that the aforementioned satellite 1102 or satellite 1202 includes, but is not limited to:

[0060] Satellites are categorized into Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geostationary Earth Orbit (GEO), and High Elliptical Orbit (HEO) satellites. Satellites can employ multiple beams to cover the ground; for example, a single satellite can generate dozens or even hundreds of beams to cover the ground. In other words, a single satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers, ensuring satellite coverage and increasing the overall system capacity of the satellite communication system.

[0061] As an example, the height range of LEO can be 500km-1500km, the corresponding orbit period can be about 1.5 hours-2 hours, the signal propagation delay of single-hop communication between users can generally be less than 20ms, and the maximum satellite visible time can be 20 minutes. The signal propagation distance of LEO is short and the link loss is small, and the transmission power requirement of the user terminal is not high. The orbit height of GEO can be 35786km, and the rotation period around the earth can be 24 hours. The signal propagation delay of single-hop communication between users can generally be 250ms.

[0062] Generally, in order to ensure the coverage of the satellite and improve the system capacity of the entire satellite communication system, the satellite adopts multi-beam to cover the ground, and a satellite can form dozens or even hundreds of beams to cover the ground. One satellite beam can cover a ground area with a diameter of dozens to hundreds of kilometers.

[0063] It should be noted that, Figures 1 to 3 The system shown in the embodiments of the present application is only used as an example, and of course, the method shown in the embodiments of the present application can also be applied to other systems. In addition, the terms "system" and "network" are often used interchangeably in this paper. The term "and / or" in this paper is only used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the existence of A alone, the existence of A and B together, and the existence of B alone. In addition, the character " / " in this paper generally represents an "or" relationship between the front and rear associated objects. It should also be understood that the "indication" mentioned in the embodiments of the present application can be direct indication or indirect indication, and can also represent an associated relationship. For example, A indicates B, which can mean that B can be obtained through A; or it can mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; or it can mean that A and B have an associated relationship.

[0064] Satellites can be divided into two types according to the functions they provide: transparent payload and regenerative payload. For transparent payload satellites, only the functions of radio frequency filtering, frequency conversion and amplification are provided, only transparent forwarding of signals is provided, and the waveform signal of the forwarded signal is not changed. For regenerative payload satellites, in addition to the functions of radio frequency filtering, frequency conversion and amplification, the functions of demodulation / decoding, routing / conversion, and encoding / modulation can also be provided, which has part or all of the functions of a base station.

[0065] In NTN, one or more gateways (Gateway) can be included for communication between satellites and terminals.

[0066] Figure 4 AndFigure 5 The schematic diagrams of NTN scenarios based on transparent and regenerative repeating satellites are shown respectively.

[0067] As shown in Figure 4 , for NTN scenarios based on transparent repeating satellites, the gateway and the satellite communicate through a feeder link, and the satellite and the terminal can communicate through a service link. As shown in Figure 5 , for NTN scenarios based on regenerative repeating satellites, the satellite and the satellite communicate through an inter-satellite link, the gateway and the satellite communicate through a feeder link, and the satellite and the terminal can communicate through a service link.

[0068] With the pursuit of rate, delay, high mobility, energy efficiency and the diversity and complexity of services in future life, the 3GPP international standard organization began to develop 5G. The main application scenarios of 5G include: enhanced mobile broadband (eMBB), ultra-reliable and low latency communication (URLLC), and massive machine type of communication (mMTC). Among them, eMBB aims to provide users with multimedia content, services and data, and its demand is growing rapidly. Since eMBB may be deployed in different scenarios, such as indoor, urban, rural, etc., the differences in their capabilities and requirements are also quite large, so they cannot be generalized and can be analyzed in detail in combination with specific deployment scenarios. Typical applications of URLLC include industrial automation, power automation, remote medical operations (surgery), and traffic safety assurance. The typical characteristics of mMTC include high connection density, small data volume, delay-insensitive services, low-cost modules, and long service life, etc.

[0069] NR can be independently deployed, and in order to reduce air signaling and quickly recover wireless connection in 5G network environment, a new radio resource control (RRC) state, RRC_INACTIVE (deactivated) state, is defined for the purpose of quickly recovering data services. This state is different from RRC_IDLE (idle) and RRC_CONNECTED (connected) states.

[0070] In the RRC_IDLE state: mobility is UE-based cell selection reselection, paging is initiated by the core network (CN), and the paging area is configured by the CN. There is no UE access stratum (AS) context on the base station side, and there is no RRC connection.

[0071] In the RRC_CONNECTED state: there is an RRC connection, and there is a UE AS context on the base station and UE. The network device knows the location of the UE is a specific cell level. Mobility is network device-controlled mobility. Unicast data can be transmitted between the UE and the base station.

[0072] RRC_INACTIVE: mobility is UE-based cell selection reselection, there is a connection between the CN and the NR, the UE AS context exists on a certain base station, paging is triggered by the radio access network (RAN), the RAN-based paging area is managed by the RAN, and the network device knows the location of the UE is based on the RAN-based paging area level.

[0073] In order to facilitate the understanding of the scheme of the present application, the scheme of cell selection and cell reselection of the terminal device in the NR system is described below.

[0074] 1. Cell selection process.

[0075] The cell needs to meet the S criterion, and the terminal device performs cell selection when and only when the received power and signal quality of the current cell meet the following conditions at the same time: Srxlev>0 and Squal>0. Specifically, the terminal device can determine Srxlev and Squal according to the following formula:

[0076] Srxlev=Q rxlevmeas -(Q rxlevmin +Q rxlevminoffset )-P compensation -Qoffset temp ;

[0077] Squal=Q qualmeas -(Q qualmin +Q qualminoffset )-Qoffset temp .

[0078] Wherein, Q rxlevmeas and Q qualmeasCell received power measured for UE, i.e. Reference Signal Receiving Power (RSRP) and Reference Signal Receiving Quality (RSRQ);

[0079] Q rxlevmin and Q qualmin Minimum received power required for network side, i.e. minimum RSRP and minimum RSRQ;

[0080] Q rxlevminoffset and Q qualminoffset Offset to prevent ping-pong effect between two Public Land Mobile Networks (PLMNs) due to radio environment fluctuation. It is noted that the offset is only considered when camping on a suitable cell of a visited PLMN and periodically searching for a higher priority PLMN.

[0081] P compensation Power compensation, e.g. due to low UE power, when the maximum transmit power allowed by the network side is larger than the maximum uplink transmit power determined by the UE itself capability.

[0082] Qoffset temp Only used for special scenarios, not applicable in normal cases, e.g. "Chiba problem" scenario.

[0083] 2. Cell reselection procedure.

[0084] Cell reselection refers to a process in which a UE selects a best cell to provide a service signal by monitoring signal quality of a neighbor cell and a current cell in an idle mode. When signal quality and level of the neighbor cell satisfy S criteria and certain reselection decision criteria (R criteria) are satisfied, the terminal accesses the cell to camp. After the UE successfully camps, the UE continues to perform measurement of the current cell. Specifically, the terminal device calculates S criteria (Srxlev) according to RSRP measurement results through an RRC layer and compares it with an intra-frequency measurement start threshold (Sintrasearch) and an inter-frequency / inter-system measurement start threshold (Snonintrasearch) as a decision condition for whether to start measurement of the neighbor cell. For intra-frequency and inter-frequency, the network device assists the UE in measurement by configuring per frequency synchronization signal and / or physical broadcast channel block (SSB) measurement timing configuration (SMTC) to achieve the purpose of UE power saving.

[0085] For a process of acquiring cell signal quality, the terminal device can acquire per frequency parameters N and thresholds through system broadcast to select the best beam. Thus, the terminal device can linearly average signal quality of the best N beams satisfying the threshold as cell signal quality. If the per frequency parameters N and thresholds are not broadcast, signal quality of the best beam in the cell is taken as cell signal quality.

[0086] For a process of selecting a target cell, the terminal device can control candidate cells through rangeToBestCell to the best cell, that is, among all candidate cells within rangeToBestCell from the best cell signal quality, select a cell with the most beams satisfying the threshold as the target cell. Specifically, R is calculated according to the following formula: n and R s If continuously measured R n and R s can maintain R n > R s , cell reselection is needed.

[0087] R s = Q meas,s + Q hyst - Qoffset temp ;

[0088] R n =Q meas,n -Qoffset Qoffset temp .

[0089] Among them, R s Indicates the signal quality of the serving cell;

[0090] R n Indicates the signal quality of neighboring cells;

[0091] Q meas This indicates the RSRP measurement quantity used in cell reselections;

[0092] Q meas,s This represents the RSRP measurement value of the serving cell;

[0093] Q meas,n Indicates the RSRP measurement value of the neighboring cell;

[0094] Q hysts The re-election process for the community is delayed;

[0095] For the same frequency: if Qoffset s,n If it is valid, then Qoffset equals Qoffset. s,n Otherwise, it equals 0 (For intra-frequency: Equals to Qoffset) s,n if Qoffset s,n is valid,otherwise thisequalsto zero);

[0096] For different frequencies: if Qoffset s,n It is valid, equal to Qoffset. s,n Add Qoffset frequency Otherwise, it equals Qoffset. frequency (For inter-frequency:Equalsto Qoffset s,n plus Qoffset frequency ,ifQoffset s,n is valid,otherwise this equals to Qoffset frequency .).

[0097] Qoffset s,na difference of the signal quality requirements for two cells (i.e., a serving cell and a neighbor cell).

[0098] Qoffset temp represents an offset temporarily applied to a cell.

[0099] After the introduction of NTN, when the satellite moves at a high speed, the connection between the satellite and the ground gateway also needs to be switched. Specifically, if two ground gateways are connected to two ground base stations or two cells under one ground base station, all user equipment (UE) in the area covered by the satellite needs to be switched from the original cell to the new cell after the feeder link switch. However, due to the large distance between the satellite and the ground in the NNT, the signal transmission delay between the terminal device and the satellite is also large. At this time, if the signal quality is obtained through the way of radio resource management (RRM) measurement, the waiting time will be too long, which may cause service interruption and reduce the communication quality. Of course, if the two ground gateways are connected to the same cell under the same base station, the UE can not perform the switching operation.

[0100] Figure 6 is an example of a scenario in which the connection between the satellite and the ground gateway is switched.

[0101] As shown in Figure 6 , the ground gateway 1 is connected to the base station 1, and the ground gateway 2 is connected to the base station 2. At T1, the area covered by the satellite is a cell under the base station 1, and at T2, the area covered by the satellite is a cell under the base station 2. At this time, the feeder link switch needs to be performed, that is, the cell switching needs to be performed, so that the terminal device can be switched from the original cell to the new cell. For example, the switching threshold can be used to switch from the original cell to the new cell. The switching threshold can be a threshold related to cell selection or cell reselection.

[0102] In the embodiments of the present application, the first adjustment amount is introduced to assist the terminal device in cell selection or cell reselection. Since the ground coverage of the satellite cell is quasi-earth-fixed in a period of time, based on this, the terminal device can quickly obtain the new cell signal quality of the terminal device through an adjustment amount in this period of time, and then perform cell selection and / or cell reselection based on the new cell signal quality of the terminal device. This can avoid cell selection and / or cell reselection based on RRM measurement after reaching the cell, which is beneficial to the terminal device to quickly access the new cell, and thus can reduce service interruption and improve communication quality.

[0103] Figure 7 A schematic flowchart of a wireless communication method 200 according to the embodiments of the present application is shown, which can be performed by a terminal device. For example, it can be a terminal device as shown in Figure 1

[0104] As shown in Figure 7 The method 200 can include the following parts or all of them:

[0105] S210, performing cell selection and / or cell reselection based on the first adjustment amount;

[0106] The first adjustment amount is used to represent the adjustment amount of the new cell signal quality of the terminal device when the new cell arrives compared with the service cell signal quality when the service cell leaves or when the new cell arrives.

[0107] For NTN, the terminal device performs cell selection and / or cell reselection based on the first adjustment amount. For example, the terminal device determines the new cell signal quality of the terminal device based on the first adjustment amount, and then performs cell selection and / or cell reselection based on the new cell signal quality of the terminal device.

[0108] In the embodiments of the present application, by introducing the first adjustment amount, the new cell signal quality of the terminal device can be directly determined based on the first adjustment amount, and then cell selection and / or cell reselection can be performed based on the new cell signal quality of the terminal device. This avoids first measuring the new cell signal quality of the terminal device based on RRM after the new cell arrives, and then performing cell selection and / or cell reselection based on the new cell signal quality of the terminal device, i.e. avoiding the waiting time for obtaining the signal quality through RRM measurement. In other words, by introducing the first adjustment amount, the waiting time for obtaining the new cell signal quality can be shortened, so that the terminal can obtain the new cell signal quality of the terminal device earlier, and then the terminal can access the new cell earlier, reduce service interruption and improve communication quality.

[0109] ​It should be noted that in the embodiments of the present application, the new cell signal quality of the terminal device when the new cell arrives can be understood as the signal quality of the terminal device in the new cell when the new cell arrives, and the serving cell signal quality of the terminal device when the serving cell leaves or when the new cell arrives can be understood as the signal quality of the terminal device in the serving cell when the serving cell leaves or when the new cell arrives. It should also be noted that in the embodiments of the present application, the specific implementation of the new cell signal quality and the serving cell signal quality is not limited. For example, it can be RSRP, or RSRQ, or SINR. Of course, in other alternative embodiments of the present application, the first adjustment amount can also be used to represent the adjustment amount of the new cell signal quality of the terminal device when the new cell arrives compared with the serving cell signal quality of the terminal device when the serving cell is about to leave. Optionally, the serving cell is about to leave can be understood as the new cell has arrived and the serving cell is about to leave. For example, as a typical case, the time when the serving cell is about to leave can be the time when the new cell arrives.

[0110] In some embodiments, the first adjustment amount is used to represent the adjustment amount of the new cell signal quality of the terminal device when the new cell arrives compared with the serving cell signal quality of the terminal device when the serving cell leaves; based on this, the first serving cell signal quality of the terminal device when the serving cell leaves is obtained; the sum of the first serving cell signal quality, the first adjustment amount and the road loss difference is determined as the new cell signal quality of the terminal device when the new cell arrives; the road loss difference is the difference between the road loss of the serving link of the terminal device when the new cell arrives and the road loss of the serving link of the terminal device when the serving cell leaves; based on the new cell signal quality of the terminal device when the new cell arrives, cell selection and / or cell reselection is performed.

[0111] In other words, assuming that the time when the serving cell leaves is T1 time, and the arrival time of the new cell is T2 time, in the embodiments of the present application, the first adjustment amount is the new cell signal quality of the terminal device at T2 time relative to the serving cell signal quality of the terminal device at T1 time.

[0112] In one implementation, the time when the new cell arrives is after the time when the serving cell leaves.

[0113] In other words, assuming that the time when the serving cell leaves is T1 time, and the arrival time of the new cell is T2 time, then T1 < T2. Or in other words, the terminal device disconnects the connection with the old cell and then establishes a connection with the new cell.

[0114] In one implementation, the method 200 can further include:

[0115] determining the path loss difference based on at least one of the following:

[0116] the location information of the terminal device, the ephemeris information, the time information of the new cell arrival and the time information of the serving cell departure.

[0117] For example, the terminal device determines the path loss difference based on the location information of the terminal device, the ephemeris information, the time information of the new cell arrival and the time information of the serving cell departure. Specifically, the terminal device can determine, based on the location information and the ephemeris information of the terminal device at the time of the new cell arrival, the path loss of the serving link of the terminal device at the time of the new cell arrival based on the time information of the new cell arrival; similarly, the terminal device can determine, based on the location information and the ephemeris information of the terminal device at the time of the serving cell departure, the path loss of the serving link of the terminal device at the time of the serving cell departure based on the time information of the serving cell departure; further, the terminal device can determine the path loss difference based on the path loss of the serving link of the terminal device at the time of the new cell arrival and the path loss of the serving link of the terminal device at the time of the serving cell departure. For example, the terminal device can determine the path loss difference as the difference between the path loss of the serving link of the terminal device at the time of the new cell arrival and the path loss of the serving link of the terminal device at the time of the serving cell departure.

[0118] In an implementation manner, the method 200 can further include:

[0119] starting the neighbor cell measurement at the time of the serving cell departure.

[0120] In other words, the terminal device can perform cell selection and / or cell reselection based on the first adjustment amount at the time of the new cell arrival, and the terminal device can also start the neighbor cell measurement at the time of the serving cell departure and perform selection and / or cell reselection based on the measurement result. The two schemes can be used in combination or separately, which is not specifically limited in the present application.

[0121] In some embodiments, the first adjustment amount is used to represent the adjustment amount of the new cell signal quality of the terminal device at the time of the new cell arrival compared with the serving cell signal quality of the terminal device at the time of the new cell arrival; based on this, the second serving cell signal quality of the terminal device at the time of the new cell arrival is obtained; the sum of the second serving cell signal quality and the first adjustment amount is determined as the new cell signal quality of the terminal device at the time of the new cell arrival; and cell selection and / or cell reselection is performed based on the new cell signal quality of the terminal device at the time of the new cell arrival.

[0122] In other words, assuming that the time when the serving cell leaves is T1 and the time when the new cell arrives is T2, in the embodiment of the present application, the first adjustment amount is the new cell signal quality of the terminal device at T2 relative to the serving cell signal quality of the terminal device at T2.

[0123] In an implementation manner, the time when the new cell arrives is before the time when the serving cell leaves.

[0124] In other words, assuming that the time when the serving cell leaves is T1 and the time when the new cell arrives is T2, then T1 > T2. Alternatively, the terminal device establishes a connection with the new cell and then disconnects the connection with the old cell.

[0125] In an implementation manner, based on the new cell signal quality of the terminal device when the new cell arrives, the serving cell is excluded in the sorting operation of cell selection and / or cell reselection.

[0126] Since T1 > T2, which means that the terminal device establishes a connection with the new cell and then disconnects the connection with the old cell, in the reordering process of cell selection or cell reselection, the serving cell that is about to leave is also usually considered. In the embodiment of the present application, by excluding the serving cell that is about to leave in cell selection or cell reselection, the terminal device can be connected to the new cell earlier through signal quality sorting, thereby avoiding service interruption of the terminal device on the old serving cell.

[0127] In some embodiments, the method 200 can further include:

[0128] Receiving configuration information of the serving cell, wherein the configuration information includes the first adjustment amount.

[0129] In an implementation manner, the configuration information further includes time information of the serving cell leaving and / or time information of the new cell arriving. For example, the time information of the serving cell leaving can be the time when the serving cell leaves or a time period. The time information of the new cell arriving can be the time when the new cell arrives or a time period.

[0130] In an implementation manner, the configuration information of the serving cell is acquired through system information or Radio Resource Control (RRC) dedicated signaling. For example, the configuration information is carried in or piggybacked on the system information or RRC dedicated signaling.

[0131] In an implementation manner, the configuration information is applicable to a scenario of feeder link switching.

[0132] In other words, in the case of a handover of the feeder link, cell selection and / or cell reselection is performed based on the first adjustment amount.

[0133] In an implementation manner, the new cell includes a plurality of cells, and arrival times of part or all of the plurality of cells are the same, or arrival times of the plurality of cells are different.

[0134] In other words, the first adjustment amount can include a plurality of adjustment amounts, and the plurality of adjustment amounts correspond to the plurality of cells one by one, or different adjustment amounts correspond to cells with different arrival times. Based on this, the terminal device can perform cell selection and / or cell reselection based on the cell signal quality at the arrival time of each cell.

[0135] In an implementation manner, the first adjustment amount includes at least one of a difference between a path loss of the feeder link at the arrival time of the new cell and a path loss of the feeder link at the departure time of the serving cell, a difference between a synchronization signal and / or physical broadcast channel block (SSB) transmission power at the arrival time of the new cell and SSB transmission power at the departure time of the serving cell, or a difference between a satellite power amplification multiple at the arrival time of the new cell and a satellite power amplification multiple at the departure time of the serving cell. For example, the first adjustment amount includes a sum of the difference between the path loss of the feeder link at the arrival time of the new cell and the path loss of the feeder link at the departure time of the serving cell, the difference between the SSB transmission power at the arrival time of the new cell and the SSB transmission power at the departure time of the serving cell, or the difference between the satellite power amplification multiple at the arrival time of the new cell and the satellite power amplification multiple at the departure time of the serving cell.

[0136] In other words, assuming that the departure time of the serving cell is T1 and the arrival time of the new cell is T2, in the embodiment of the present application, the signal quality of the terminal device at T1 can be calculated by the following formula: P T1 = P SSB,1 -P service,1 -P feeder,1 + P Satellite,1 ; wherein P SSB,1 denotes the SSB transmission power of the base station at T1, P feeder,1 denotes the path loss of the feeder link at T1, P Satellite,1 denotes the satellite power amplification multiple at T1, and P service,1 denotes the path loss of the service link at T1. The signal quality of the terminal device at T2 can be calculated by the following formula: P T2 = P SSB,2 -P service,2 -P feeder,2 + P Satellite,2Among them, P SSB,2 P represents the base station's SSB transmission power at time T2. feeder,2 P represents the path loss of the feeder link at time T2. Satellite,2 P represents the satellite power amplification factor at time T2; service,2 This represents the path loss of the service link at time T2. Based on this, we can obtain:

[0137] P T2 -P T1 =(P SSB,2 -P SSB,1 )-(P service,2 -P service,1 )-(P feeder,2 -P feeder,1 )+(P Satellite,2 -P Satellite,1 );

[0138] In this embodiment of the application, the first adjustment amount may include (P) SSB,2 -P SSB,1 ), (P feeder,2 -P feeder,1 ) and (P Satellite,2 -P Satellite,1 ).

[0139] Figure 8 This is another example of a scenario where the connection between the satellite and the ground gateway is switched, as provided in the embodiments of this application.

[0140] like Figure 8 As shown, gateway 1 is connected to base station 1, and gateway 2 is connected to base station 2. Assume the satellite moves in the direction shown in the diagram, with the serving cell leaving at time T1 and the new cell arriving at time T2. In other words, at time T1, the satellite covers the area of ​​the cell under base station 1, and at time T2, the satellite covers the area of ​​the cell under base station 2. At this point, a feeder linkswitch is required, i.e., a cell handover, so that the terminal device can switch from the original cell to the new cell.

[0141] The following is based on Figure 8 Taking the scenario shown as an example, the solution of this application will be illustrated by way of example with specific embodiments.

[0142] Example 1:

[0143] In the embodiments of the present application, the network broadcasts the time information of the arrival of the new cell at the same time, and additionally broadcasts the adjustment amount of the new cell signal quality of the terminal device at the arrival of the new cell compared with the service cell signal quality of the terminal device at the beginning of the service cell, and the cell selection and / or cell reselection is performed through the adjustment amount (T1 < T2).

[0144] The terminal device receives the configuration information of the service cell, and the configuration information further includes the time information T1 of the departure of the service cell and / or the time information T2 of the arrival of the new cell. Further, the adjustment amount of the new cell signal quality of the terminal device at the arrival of the new cell compared with the service cell signal quality of the terminal device at the beginning of the service cell is included. Specifically:

[0145] a) The configuration information can be obtained through system messages or RRC dedicated signaling;

[0146] b) The configuration information is for the feeder link switch scenario;

[0147] c) The new cell can have multiple cells, and the T2 of the multiple cells can be the same or different;

[0148] d) The adjustment amount can include the feeder link loss difference between the new and old cells, and / or the SSB transmission power difference between the new and old cells, and / or the satellite power amplification difference between the new and old cells, etc.

[0149] At the time T1 when the service cell departs, the terminal device adds the adjustment amount of the new cell signal quality of the terminal device at the arrival of the new cell compared with the service cell signal quality of the terminal device at the beginning of the service cell to the service cell signal quality (such as RSRP / RSRQ / SINR) at the time T1, and further adds the feeder link loss difference between the time T2 and the time T1 (calculated through the terminal device position and ephemeris information) to obtain the new cell signal quality of the terminal device at the time T2, and uses the new cell signal quality of the terminal device at the time T2 for the sorting operation in the cell selection or cell reselection process. In addition, at the time T1, i.e., when the service cell departs, the terminal device can also start the neighbor cell measurement on the same frequency / frequency.

[0150] In the embodiments of the present application, after the introduction of the configuration of the adjustment amount, the terminal device at the time T2 can obtain the new cell signal quality as soon as possible, which avoids the measurement of the new cell at the time T2 and then the terminal device obtains the new cell signal quality, shortens the acquisition time of the new cell signal quality of the terminal device, makes the terminal device access the cell faster, reduces the service interruption time, and improves the communication quality.

[0151] Embodiment 2:

[0152] The network broadcasts the time information of the arrival of the new cell, and additionally broadcasts the adjustment amount of the new cell signal quality of the terminal device at the time of arrival of the new cell compared with the serving cell signal quality of the terminal device at the time of arrival of the new cell, and the terminal device performs cell selection and / or cell reselection at the time of arrival of the new cell through the adjustment amount, and excludes the serving cell about to leave (T1>T2) when ranking.

[0153] The terminal device receives the configuration information of the serving cell, and the configuration information further includes the time information T1 of departure of the serving cell and / or the time information T2 of arrival of the new cell. Further, the adjustment amount of the new cell signal quality of the terminal device at the time of arrival of the new cell compared with the serving cell signal quality of the terminal device at the time of departure of the serving cell. Specifically:

[0154] a) The configuration information can be obtained through system messages or RRC dedicated signaling;

[0155] b) The configuration information is for the feeder link switch scenario;

[0156] c) The new cell can have multiple cells, and the T2 of the multiple cells can be the same or different;

[0157] d) The adjustment amount can include the feeder link loss difference between the new and old cells, and / or the SSB transmission power difference between the new and old cells, and / or the satellite power amplification difference between the new and old cells, etc.

[0158] At the time T2 of arrival of the new cell, the terminal device adds the serving cell signal quality (for example, RSRP / RSRQ / SINR) at the time T2 to the adjustment amount of the new cell signal quality of the terminal device at the time of arrival of the new cell configured by the network compared with the serving cell signal quality of the terminal device at the time of arrival of the new cell, as the new cell signal quality of the terminal device at the time T2, and uses the new cell signal quality of the terminal device at the time T2 for ranking operation in the cell selection or cell reselection process. In the cell reselection ranking, the terminal device excludes the serving cell about to leave.

[0159] In the embodiments of the present application, the new cell signal quality at the time T2 is obtained through the introduced adjustment amount, which can accelerate the reselection to the new cell; in addition, by excluding the serving cell about to leave, the terminal device can be accessed to the new cell through signal quality ranking earlier, and avoid service interruption of the terminal device on the old serving cell.

[0160] In summary, the application provides a method for cell selection and / or cell reselection in an NTN scenario, mainly for a feeder link switching scenario. In some embodiments, the network broadcasts the time information of the arrival of the new cell, and additionally broadcasts the adjustment amount of the new cell signal quality of the terminal device at the arrival of the new cell compared with the service cell signal quality at the beginning of the service cell. The terminal device performs cell selection and / or cell reselection through the adjustment amount (T1 < T2). In other embodiments, the network broadcasts the time information of the arrival of the new cell, and additionally broadcasts the adjustment amount of the new cell signal quality of the terminal device at the arrival of the new cell compared with the service cell signal quality at the arrival of the new cell. The terminal device performs cell selection and / or cell reselection through the adjustment amount at the arrival of the new cell, and excludes the service cell about to leave when ranking (T1 > T2). In the embodiments of the application, after the introduction of the configuration of the adjustment amount, the terminal device at T2 can obtain the new cell signal quality as soon as possible, avoiding the need to measure the new cell at T2 before obtaining the new cell signal quality of the terminal device, shortening the acquisition time of the new cell signal quality of the terminal device, enabling the terminal device to access the cell faster, reducing the service interruption time, and improving the communication quality.

[0161] The preferred embodiments of the application are described in detail above with reference to the accompanying drawings, but the application is not limited to the specific details in the above-described embodiments. Within the technical concept of the application, various simple modifications can be made to the technical solutions of the application, and these simple modifications all belong to the protection scope of the application. For example, in the above-described specific embodiments, various specific technical features described can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combination manners are not described again in the application. For another example, various different embodiments of the application can also be combined in any manner, as long as it does not deviate from the idea of the application, and it should also be considered as disclosed in the application.

[0162] It should also be understood that in various method embodiments of the application, the size of the sequence number of the above-described processes does not mean the order of execution. The execution order of the processes should be determined according to their functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the application. In addition, in the embodiments of the application, the term "and / or" is only a description of the association relationship between the associated objects, indicating that there can be three relationships. Specifically, A and / or B can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents an "or" relationship between the front and rear associated objects.

[0163] The above describes the wireless communication method according to the embodiments of the application in detail from the perspective of the terminal device, and the following will be described in detail from the perspective of the network device. Figure 7 and Figure 8 The wireless communication method according to the embodiments of the application is described in detail from the perspective of the terminal device above, and the following will be described in detail from the perspective of the network device.Figure 9 The wireless communication method according to the embodiments of the present application is described from the perspective of a network device.

[0164] Figure 9 FIG. 3 is a schematic flowchart of a wireless communication method 300 provided by the embodiments of the present application. The method 300 can be performed by a network device, for example Figure 1 the network device shown in FIG. 1.

[0165] As shown in Figure 9 the method 300 can include the following steps.

[0166] S310, transmitting configuration information of a serving cell;

[0167] The configuration information includes a first adjustment amount, which is used to represent an adjustment amount of a new cell signal quality of a terminal device when a new cell arrives, compared with a serving cell signal quality of the terminal device when the serving cell leaves or when the new cell arrives.

[0168] In some embodiments, the configuration information further includes time information of the serving cell leaving and / or time information of the new cell arriving.

[0169] In some embodiments, the configuration information of the serving cell is acquired through system message broadcast or RRC dedicated signaling.

[0170] In some embodiments, the configuration information is applicable to a scenario where a feeder link switches.

[0171] In some embodiments, the new cell includes a plurality of cells, and arrival times of part of the plurality of cells or all of the plurality of cells are the same, or arrival times of the plurality of cells are different from each other.

[0172] In some embodiments, the first adjustment amount includes at least one of the following: a difference between a feeder link loss when the new cell arrives and a feeder link loss when the serving cell leaves, a difference between a synchronization signal and / or physical broadcast channel block (SSB) transmission power when the new cell arrives and a SSB transmission power when the serving cell leaves, or a difference between a satellite power amplification multiple when the new cell arrives and a satellite power amplification multiple when the serving cell leaves.

[0173] It should be understood that the steps in the method 300 can refer to the corresponding steps in the method 200, and for the sake of brevity, will not be repeated here.

[0174] The method embodiments of the present application are described in detail above, and the device embodiments of the present application are described in detail below in conjunction with Figures 10 to 13 .

[0175] Figure 10is a schematic block diagram of a terminal device 400 according to an embodiment of the present application.

[0176] As shown in Figure 10 the terminal device 400 can include:

[0177] a processing unit 410 configured to perform cell selection and / or cell reselection based on a first adjustment amount;

[0178] wherein the first adjustment amount is used to represent an adjustment amount of a new cell signal quality of the terminal device when a new cell arrives compared with a serving cell signal quality of the terminal device when a serving cell departs or when the new cell arrives.

[0179] In some embodiments, the first adjustment amount is used to represent an adjustment amount of the new cell signal quality of the terminal device when the new cell arrives compared with the serving cell signal quality of the terminal device when the serving cell departs; and the processing unit 410 is specifically configured to:

[0180] obtain a first serving cell signal quality of the terminal device when the serving cell departs;

[0181] determine a sum of the first serving cell signal quality, the first adjustment amount and a path loss difference as the new cell signal quality of the terminal device when the new cell arrives; the path loss difference is a difference of a path loss of a serving link of the terminal device when the new cell arrives compared with a path loss of the serving link of the terminal device when the serving cell departs;

[0182] perform cell selection and / or cell reselection based on the new cell signal quality of the terminal device when the new cell arrives.

[0183] In some embodiments, the time when the new cell arrives is after the time when the serving cell departs.

[0184] In some embodiments, the processing unit 410 is further configured to:

[0185] determine the path loss difference based on at least one of:

[0186] location information of the terminal device, ephemeris information, time information of the new cell arrival and time information of the serving cell departure.

[0187] In some embodiments, the processing unit 410 is further configured to:

[0188] start a neighbor cell measurement when the serving cell departs.

[0189] In some embodiments, the first adjustment amount is used to represent an adjustment amount of a new cell signal quality of the terminal device when the new cell arrives, compared with a serving cell signal quality of the terminal device when the new cell arrives; wherein the processing unit 410 is specifically configured to:

[0190] obtain a second serving cell signal quality of the terminal device when the new cell arrives;

[0191] determine a sum of the second serving cell signal quality and the first adjustment amount as the new cell signal quality of the terminal device when the new cell arrives;

[0192] perform cell selection and / or cell reselection based on the new cell signal quality of the terminal device when the new cell arrives.

[0193] In some embodiments, the time when the new cell arrives is before the time when the serving cell leaves.

[0194] In some embodiments, the processing unit 410 is specifically configured to:

[0195] exclude the serving cell in a ranking operation of cell selection and / or cell reselection based on the new cell signal quality of the terminal device when the new cell arrives.

[0196] In some embodiments, the terminal device further comprises:

[0197] a communication unit, configured to receive configuration information of the serving cell, the configuration information comprising the first adjustment amount.

[0198] In some embodiments, the configuration information further comprises time information of the serving cell leaving and / or time information of the new cell arriving.

[0199] In some embodiments, the communication unit is specifically configured to:

[0200] obtain the configuration information of the serving cell through system message or radio resource control (RRC) dedicated signaling.

[0201] In some embodiments, the configuration information is applicable to a scenario where a feeder link occurs switching.

[0202] In some embodiments, the new cell comprises a plurality of cells, and arrival times of part of the plurality of cells or all of the plurality of cells are the same, or the arrival times of the plurality of cells are different from each other.

[0203] In some embodiments, the first adjustment amount comprises at least one of the following:

[0204] a difference between a path loss of the feeder link when the new cell arrives and a path loss of the feeder link when the serving cell departs, a difference between a synchronization signal and / or physical broadcast channel block, SSB, transmission power when the new cell arrives and a SSB transmission power when the serving cell departs, or a difference between a satellite power amplification factor when the new cell arrives and a satellite power amplification factor when the serving cell departs.

[0205] Figure 11 is a schematic block diagram of a network device 500 according to an embodiment of the present application.

[0206] As shown in Figure 11 the network device 500 can include:

[0207] a communication unit 510 configured to transmit configuration information of a serving cell;

[0208] The configuration information includes a first adjustment amount, which is used to represent an adjustment amount of a new cell signal quality of a terminal device when a new cell arrives compared with a serving cell signal quality of the terminal device when the serving cell departs or when the new cell arrives.

[0209] In some embodiments, the configuration information further includes time information of the departure of the serving cell and / or time information of the arrival of the new cell.

[0210] In some embodiments, the communication unit 510 is specifically configured to:

[0211] obtain the configuration information of the serving cell through system message broadcast or RRC dedicated signaling.

[0212] In some embodiments, the configuration information is applicable to a scenario where a feeder link switching occurs.

[0213] In some embodiments, the new cell includes a plurality of cells, and arrival times of some or all of the plurality of cells are the same, or arrival times of the plurality of cells are different from each other.

[0214] In some embodiments, the first adjustment amount includes at least one of:

[0215] a difference between a path loss of the feeder link when the new cell arrives and a path loss of the feeder link when the serving cell departs, a difference between a synchronization signal and / or physical broadcast channel block, SSB, transmission power when the new cell arrives and a SSB transmission power when the serving cell departs, or a difference between a satellite power amplification factor when the new cell arrives and a satellite power amplification factor when the serving cell departs.

[0216] It should be understood that the apparatus embodiments and method embodiments can correspond to each other, and similar descriptions can be referred to the method embodiments. Specifically, Figure 10 The terminal device 400 shown can correspond to a corresponding subject in executing the method 200 of the embodiments of this application, and the foregoing and other operations and / or functions of each unit in the terminal device 400 are respectively for implementing Figure 7 The corresponding processes within each method are omitted here for brevity. Similarly, Figure 11 The network device 500 shown may correspond to a corresponding entity in performing the method 300 of the embodiments of this application, and the foregoing and other operations and / or functions of each unit in the network device 500 are respectively for implementing Figure 9 For the sake of brevity, the corresponding processes in each method are not described in detail here.

[0217] The communication device of this application embodiment has been described above from the perspective of functional modules in conjunction with the accompanying drawings. It should be understood that this functional module can be implemented in hardware, in software instructions, or in a combination of hardware and software modules. Specifically, the steps of the method embodiments in this application can be completed by integrated logic circuits in the processor's hardware and / or by software instructions. The steps of the method disclosed in this application embodiment can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. Optionally, the software module can be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps in the above method embodiments.

[0218] For example, the processing unit 410 and the communication unit 510 mentioned above can be implemented by a processor and a transceiver, respectively.

[0219] Figure 12 This is a schematic structural diagram of a communication device 600 according to an embodiment of this application.

[0220] like Figure 12 As shown, the communication device 600 may include a processor 610.

[0221] The processor 610 can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0222] like Figure 12 As shown, the communication device 600 may also include a memory 620.

[0223] The memory 620 can be used to store indication information, and can also be used to store codes, instructions, etc. executed by the processor 610. The processor 610 can call and run a computer program from the memory 620 to implement the method in the embodiments of the present application. The memory 620 can be a separate device independent of the processor 610, or can be integrated in the processor 610.

[0224] As shown in FIG. 6, the communication device 600 can further include a transceiver 630. Figure 12

[0225] The processor 610 can control the transceiver 630 to communicate with other devices, specifically, can send information or data to other devices, or receive information or data sent by other devices. The transceiver 630 can include a transmitter and a receiver. The transceiver 630 can further include an antenna, and the number of antennas can be one or more.

[0226] It should be understood that various components in the communication device 600 are connected through a bus system, where the bus system includes a data bus, a power bus, a control bus, and a state signal bus in addition to the data bus.

[0227] It should be understood that the communication device 600 can be a terminal device of the embodiments of the present application, and the communication device 600 can implement the corresponding processes in the various methods of the embodiments of the present application implemented by the terminal device, that is, the communication device 600 of the embodiments of the present application can correspond to the terminal device 400 in the embodiments of the present application, and can correspond to the corresponding subject executing the method 200 according to the embodiments of the present application. For the sake of brevity, details are not repeated here. Similarly, the communication device 600 can be a network device of the embodiments of the present application, and the communication device 600 can implement the corresponding processes in the various methods of the embodiments of the present application implemented by the network device. That is, the communication device 600 of the embodiments of the present application can correspond to the network device 500 in the embodiments of the present application, and can correspond to the corresponding subject executing the method 300 according to the embodiments of the present application. For the sake of brevity, details are not repeated here.

[0228] In addition, the embodiments of the present application also provide a chip.

[0229] For example, the chip can be an integrated circuit chip with signal processing capability, which can implement or execute the disclosed methods, steps and logic block diagrams in the embodiments of the present application. The chip can also be referred to as a system chip, a system chip, a chip system or a system on chip chip, etc. Alternatively, the chip can be applied to various communication devices, so that the communication device installed with the chip can execute the disclosed methods, steps and logic block diagrams in the embodiments of the present application.

[0230] Figure 13 ​is a schematic structural diagram of a chip 700 according to an embodiment of the present application.

[0231] As shown in Figure 13 the chip 700 includes a processor 710.

[0232] The processor 710 can call and run a computer program from the memory to implement the method in the embodiments of the present application.

[0233] As shown in Figure 13 the chip 700 can further include a memory 720.

[0234] The processor 710 can call and run a computer program from the memory 720 to implement the method in the embodiments of the present application. The memory 720 can be used to store indication information, and can also be used to store codes, instructions, etc. executed by the processor 710. The memory 720 can be a separate device independent of the processor 710, or can be integrated in the processor 710.

[0235] As shown in Figure 13 the chip 700 can further include an input interface 730.

[0236] The processor 710 can control the input interface 730 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

[0237] As shown in Figure 13 the chip 700 can further include an output interface 740.

[0238] The processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

[0239] It should be understood that the chip 700 can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of the present application, or can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

[0240] It should also be understood that the various components in the chip 700 are connected through a bus system, wherein the bus system includes a data bus, a power supply bus, a control bus and a state signal bus in addition to the data bus.

[0241] The processor mentioned above can include but is not limited to:

[0242] General processor, Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.

[0243] The processor can be configured to implement or execute the various methods, steps, and logical blocks disclosed in the embodiments of the present application. The steps of the methods disclosed in conjunction with the embodiments of the present application can be directly embodied in hardware code processing, or a combination of hardware and software modules in the code processing. The software modules can be located in storage media such as random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable memory, register, etc. in the art. The storage medium is located in the storage, and the processor reads the information in the storage and combines the hardware to complete the steps of the above method.

[0244] The storage mentioned above includes but is not limited to:

[0245] volatile memory and / or non-volatile memory. The non-volatile memory can be Read-Only Memory (ROM), Programmable ROM (PROM), Erasable PROM (EPROM), Electrically EPROM (EEPROM) or flash memory. The volatile memory can be Random Access Memory (RAM) used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synch link DRAM (SLDRAM) and Direct Rambus RAM (DR RAM).

[0246] It should be noted that the memory described herein is intended to include these and any other suitable types of memory.

[0247] The computer readable storage medium in the embodiments of the present application further provides a computer program. The computer readable storage medium stores one or more programs, and the one or more programs include instructions, which, when executed by a computer, enable the computer to perform the method of the embodiments shown in the method 200 or the method 300. 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 perform the corresponding procedures implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein. Alternatively, 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 perform the corresponding procedures implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein.

[0248] The computer program product in the embodiments of the present application further provides 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 perform the corresponding procedures implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein. Alternatively, 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 perform the corresponding procedures implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein.

[0249] The computer program in the embodiments of the present application further provides a computer program. When the computer program is executed by a computer, the computer can perform the method of the embodiments shown in the method 200 or the method 300. Optionally, the computer program can be applied to the network device in the embodiments of the present application, and when the computer program runs on the computer, the computer performs the corresponding procedures implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein. Alternatively, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application, and when the computer program runs on the computer, the computer performs the corresponding procedures implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein.

[0250] The communication system in the embodiments of the present application further provides a communication system, which can include the terminal device and the network device described above to form a system as shown in Figure 1The illustrated communication system 100, for simplicity, will not be described here. It should be noted that the term "system" and the like herein can also be referred to as "network management architecture" or "network system" and the like.

[0251] It should also be understood that the terms used in the present application and the appended claims are merely used for the purpose of describing particular embodiments and are not intended to limit the present application. For example, the singular forms "a", "an" and "the" used in the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0252] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be realized in electronic hardware, or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application. If realized in the form of software functional units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk, and various media that can store program codes.

[0253] Those skilled in the art can appreciate that, for the convenience and conciseness of the description, the specific working processes of the system, device and unit described above can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here. In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the division of the units or modules or components in the above-described device embodiments is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or modules or components can be combined or integrated into another system, or some units or modules or components can be ignored or not executed. For another example, the units / modules / components described above as separate / displayed components can or can not be physically separated, that is, they can be located in one place or distributed on a plurality of network units. Part or all of the units / modules / components can be selected according to actual needs to achieve the purpose of the embodiments of the present application. Finally, it should be noted that the coupling or direct coupling or communication connection between the units / modules / components shown or discussed above can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0254] The above is only a specific implementation of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the embodiments of the present application, which should 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

1. A wireless communication method, characterized in that, include: Cell selection and / or cell reselection are performed based on the first adjustment amount; Wherein, the first adjustment amount is used to characterize the adjustment amount of the signal quality of the new cell of the terminal device when the new cell arrives compared with the signal quality of the serving cell of the terminal device when the serving cell leaves or when the new cell arrives; Wherein, when the first adjustment amount is used to characterize the adjustment amount of the signal quality of the new cell of the terminal device when the new cell arrives compared to the adjustment amount of the signal quality of the serving cell of the terminal device when the serving cell leaves, the cell selection and / or cell reselection based on the first adjustment amount includes: Obtain the signal quality of the first serving cell of the terminal device when the serving cell leaves; The sum of the first serving cell signal quality, the first adjustment amount, and the path loss difference is determined as the new cell signal quality of the terminal device when the new cell arrives; the path loss difference is the difference between the path loss of the terminal device's serving link when the new cell arrives and the path loss of the terminal device's serving link when the serving cell leaves. Cell selection and / or cell reselection are performed based on the signal quality of the new cell when the new cell arrives at the terminal device.

2. The method according to claim 1, characterized in that, The arrival time of the new cell is after the departure time of the serving cell.

3. The method according to claim 1, characterized in that, The method further includes: The road loss difference is determined based on at least one of the following: The location information, ephemeris information, arrival time information of the new cell, and departure time information of the serving cell of the terminal device.

4. The method according to claim 1, characterized in that, The method further includes: Neighbor cell measurement is initiated when the serving cell leaves.

5. The method according to claim 1, characterized in that, When the first adjustment amount is used to characterize the adjustment of the new cell signal quality of the terminal device compared to the serving cell signal quality of the terminal device when the new cell arrives, the cell selection and / or cell reselection based on the first adjustment amount includes: Obtain the signal quality of the second serving cell of the terminal device when the new cell arrives; The sum of the signal quality of the second serving cell and the first adjustment amount is determined as the new cell signal quality of the terminal device when the new cell arrives; Cell selection and / or cell reselection are performed based on the signal quality of the new cell when the new cell arrives at the terminal device.

6. The method according to claim 5, characterized in that, The arrival time of the new cell is before the departure time of the serving cell.

7. The method according to claim 5, characterized in that, The cell selection and / or cell reselection based on the new cell signal quality of the terminal device when the new cell arrives includes: Based on the signal quality of the new cell when the new cell arrives, the serving cell is excluded during the sorting operation of cell selection and / or cell reselection.

8. The method according to any one of claims 1 to 7, characterized in that, The method further includes: The configuration information of the serving cell is received, and the configuration information includes the first adjustment amount.

9. The method according to claim 8, characterized in that, The configuration information also includes the time information of the departure of the serving cell and / or the time information of the arrival of the new cell.

10. The method according to claim 8, characterized in that, The step of receiving the configuration information of the serving cell includes: The configuration information of the serving cell is obtained through system messages or Radio Resource Control (RRC) dedicated signaling.

11. The method according to claim 8, characterized in that, The configuration information is applicable to scenarios where feeder links are switched.

12. The method according to claim 8, characterized in that, The new cell includes multiple cells, some or all of which have the same arrival time, or the arrival times of the multiple cells are different from each other.

13. The method according to claim 8, characterized in that, The first adjustment amount includes at least one of the following: The difference between the path loss of the feeder link when the new cell arrives and the path loss of the feeder link when the serving cell leaves, the difference between the transmission power of the synchronization signal and / or physical broadcast channel block (SSB) when the new cell arrives and the transmission power of the SSB when the serving cell leaves, or the difference between the satellite power amplification factor when the new cell arrives and the satellite power amplification factor when the serving cell leaves.

14. A wireless communication method, characterized in that, include: Send the configuration information of the serving cell to the terminal device; The configuration information includes a first adjustment amount, which is used to characterize the adjustment amount of the signal quality of the new cell of the terminal device when the new cell arrives compared with the signal quality of the serving cell of the terminal device when the serving cell leaves or when the new cell arrives. The first adjustment amount is used for the terminal device to perform cell selection and / or cell reselection based on the first adjustment amount. Wherein, when the first adjustment amount is used to characterize the adjustment of the signal quality of the new cell of the terminal device when the new cell arrives compared to the signal quality of the serving cell of the terminal device when the serving cell leaves, the first adjustment amount is used for the terminal device to perform the following operation: Obtain the signal quality of the first serving cell of the terminal device when the serving cell leaves; The sum of the first serving cell signal quality, the first adjustment amount, and the path loss difference is determined as the new cell signal quality of the terminal device when the new cell arrives; the path loss difference is the difference between the path loss of the terminal device's serving link when the new cell arrives and the path loss of the terminal device's serving link when the serving cell leaves. Cell selection and / or cell reselection are performed based on the signal quality of the new cell when the new cell arrives at the terminal device.

15. The method according to claim 14, characterized in that, The configuration information also includes the time information of the departure of the serving cell and / or the time information of the arrival of the new cell.

16. The method according to claim 14, characterized in that, The step of sending the configuration information of the serving cell includes: The configuration information of the serving cell is sent via system message broadcast or RRC dedicated signaling.

17. The method according to any one of claims 14 to 16, characterized in that, The configuration information is applicable to scenarios where feeder links are switched.

18. The method according to any one of claims 14 to 16, characterized in that, The new cell includes multiple cells, some or all of which have the same arrival time, or the arrival times of the multiple cells are different from each other.

19. The method according to any one of claims 14 to 16, characterized in that, The first adjustment amount includes at least one of the following: The difference between the path loss of the feeder link when the new cell arrives and the path loss of the feeder link when the serving cell leaves, the difference between the transmission power of the synchronization signal and / or physical broadcast channel block (SSB) when the new cell arrives and the transmission power of the SSB when the serving cell leaves, or the difference between the satellite power amplification factor when the new cell arrives and the satellite power amplification factor when the serving cell leaves.

20. A terminal device, characterized in that, include: Processing unit, configured to perform cell selection and / or cell reselection based on a first adjustment amount; Wherein, the first adjustment amount is used to characterize the adjustment amount of the signal quality of the new cell of the terminal device when the new cell arrives compared with the signal quality of the serving cell of the terminal device when the serving cell leaves or when the new cell arrives; Wherein, when the first adjustment amount is used to characterize the adjustment amount of the signal quality of the new cell of the terminal device when the new cell arrives compared to the adjustment amount of the signal quality of the serving cell of the terminal device when the serving cell leaves, the processing unit is specifically used for: Obtain the signal quality of the first serving cell of the terminal device when the serving cell leaves; The sum of the first serving cell signal quality, the first adjustment amount, and the path loss difference is determined as the new cell signal quality of the terminal device when the new cell arrives; the path loss difference is the difference between the path loss of the terminal device's serving link when the new cell arrives and the path loss of the terminal device's serving link when the serving cell leaves. Cell selection and / or cell reselection are performed based on the signal quality of the new cell when the new cell arrives at the terminal device.

21. The terminal device according to claim 20, characterized in that, The arrival time of the new cell is after the departure time of the serving cell.

22. The terminal device according to claim 20, characterized in that, The processing unit is also used for: The road loss difference is determined based on at least one of the following: The location information, ephemeris information, arrival time information of the new cell, and departure time information of the serving cell of the terminal device.

23. The terminal device according to claim 20, characterized in that, The processing unit is also used for: Neighbor cell measurement is initiated when the serving cell leaves.

24. The terminal device according to claim 20, characterized in that, When the first adjustment amount is used to characterize the adjustment amount of the new cell signal quality of the terminal device compared to the serving cell signal quality of the terminal device when the new cell arrives, the processing unit is specifically used for: Obtain the signal quality of the second serving cell of the terminal device when the new cell arrives; The sum of the signal quality of the second serving cell and the first adjustment amount is determined as the new cell signal quality of the terminal device when the new cell arrives; Cell selection and / or cell reselection are performed based on the signal quality of the new cell when the new cell arrives at the terminal device.

25. The terminal device according to claim 24, characterized in that, The arrival time of the new cell is before the departure time of the serving cell.

26. The terminal device according to claim 24, characterized in that, The processing unit is specifically used for: Based on the signal quality of the new cell when the new cell arrives, the serving cell is excluded during the sorting operation of cell selection and / or cell reselection.

27. The terminal device according to any one of claims 20 to 26, characterized in that, The terminal device also includes: A communication unit is configured to receive configuration information of the serving cell, the configuration information including the first adjustment amount.

28. The terminal device according to claim 27, characterized in that, The configuration information also includes the time information of the departure of the serving cell and / or the time information of the arrival of the new cell.

29. The terminal device according to claim 27, characterized in that, The communication unit is specifically used for: The configuration information of the serving cell is obtained through system messages or Radio Resource Control (RRC) dedicated signaling.

30. The terminal device according to claim 27, characterized in that, The configuration information is applicable to scenarios where feeder links are switched.

31. The terminal device according to claim 27, characterized in that, The new cell includes multiple cells, some or all of which have the same arrival time, or the arrival times of the multiple cells are different from each other.

32. The terminal device according to claim 27, characterized in that, The first adjustment amount includes at least one of the following: The difference between the path loss of the feeder link when the new cell arrives and the path loss of the feeder link when the serving cell leaves, the difference between the transmission power of the synchronization signal and / or physical broadcast channel block (SSB) when the new cell arrives and the transmission power of the SSB when the serving cell leaves, or the difference between the satellite power amplification factor when the new cell arrives and the satellite power amplification factor when the serving cell leaves.

33. A network device, characterized in that, include: The communication unit is used to send the configuration information of the serving cell to the terminal device; The configuration information includes a first adjustment amount, which is used to characterize the adjustment amount of the signal quality of the new cell of the terminal device when the new cell arrives compared with the signal quality of the serving cell of the terminal device when the serving cell leaves or when the new cell arrives. The first adjustment amount is used for the terminal device to perform cell selection and / or cell reselection based on the first adjustment amount. Wherein, when the first adjustment amount is used to characterize the adjustment of the signal quality of the new cell of the terminal device when the new cell arrives compared to the signal quality of the serving cell of the terminal device when the serving cell leaves, the first adjustment amount is used for the terminal device to perform the following operation: Obtain the signal quality of the first serving cell of the terminal device when the serving cell leaves; The sum of the first serving cell signal quality, the first adjustment amount, and the path loss difference is determined as the new cell signal quality of the terminal device when the new cell arrives; the path loss difference is the difference between the path loss of the terminal device's serving link when the new cell arrives and the path loss of the terminal device's serving link when the serving cell leaves. Cell selection and / or cell reselection are performed based on the signal quality of the new cell when the new cell arrives at the terminal device.

34. The network device according to claim 33, characterized in that, The configuration information also includes the time information of the departure of the serving cell and / or the time information of the arrival of the new cell.

35. The network device according to claim 33, characterized in that, The communication unit is specifically used for: The configuration information of the serving cell is sent via system message broadcast or RRC dedicated signaling.

36. The network device according to any one of claims 33 to 35, characterized in that, The configuration information is applicable to scenarios where feeder links are switched.

37. The network device according to any one of claims 33 to 35, characterized in that, The new cell includes multiple cells, some or all of which have the same arrival time, or the arrival times of the multiple cells are different from each other.

38. The network device according to any one of claims 33 to 35, characterized in that, The first adjustment amount includes at least one of the following: The difference between the path loss of the feeder link when the new cell arrives and the path loss of the feeder link when the serving cell leaves, the difference between the transmission power of the synchronization signal and / or physical broadcast channel block (SSB) when the new cell arrives and the transmission power of the SSB when the serving cell leaves, or the difference between the satellite power amplification factor when the new cell arrives and the satellite power amplification factor when the serving cell leaves.

39. A terminal device, characterized in that, include: A processor and a memory, the memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method of any one of claims 1 to 13.

40. A network device, characterized in that, include: A processor and a memory, the memory being used to store a computer program, the processor being used to invoke and run the computer program stored in the memory to perform the method of any one of claims 14 to 19.

41. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device having the chip mounted to perform the method as claimed in any one of claims 1 to 13 or the method as claimed in any one of claims 14 to 19.

42. A computer-readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as claimed in any one of claims 1 to 13 or the method as claimed in any one of claims 14 to 19.

43. A computer program product, characterized in that, Includes computer program instructions that cause a computer to perform the method as claimed in any one of claims 1 to 13 or the method as claimed in any one of claims 14 to 19.

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