CN113678475B

CN113678475B - Method and equipment for cell switching

Info

Publication number: CN113678475B
Application number: CN201980095130.9A
Authority: CN
Inventors: 尤心
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2024-02-02
Anticipated expiration: 2039-09-29
Also published as: CN113678475A; WO2021056561A1

Abstract

A method and apparatus for cell switching are provided, which can achieve efficient cell switching in an NTN system. The method comprises the following steps: the terminal device sends the location information of the terminal device to the network device based on at least one of the following information: the mobile terminal comprises a timer, a counter, a moving distance of the terminal equipment and an area where the terminal equipment is located, wherein the position information is used for cell switching.

Description

Method and equipment for cell switching

Technical Field

Embodiments of the present application relate to the field of communications, and more particularly, to a method of cell handover.

Background

In a cellular network, a terminal device may perform cell measurements based on measurement events configured by the network and send measurement reports to the network device when conditions are met. The source base station may select a target base station to be handed over based on the measurement report. However, for the non-terrestrial communication network (Non Terrestrial Network, NTN) system, since the satellite communication is adopted to provide communication service for terrestrial users, the signal transmission delay between the terminal device and the satellite is greatly increased, and the problem of near-far effect exists, so that the effectiveness of measurement report is greatly reduced, and the performance of cell switching is affected.

Disclosure of Invention

The application provides a cell switching method and device, which can realize effective cell switching in an NTN system.

In a first aspect, a method for cell handover is provided, including: the terminal device sends the location information of the terminal device to the network device based on at least one of the following information: the mobile terminal comprises a timer, a moving distance of the terminal equipment and an area where the terminal equipment is located, wherein the position information is used for cell switching.

In a second aspect, a terminal device is provided, which may perform the method of the first aspect or any optional implementation of the first aspect. In particular, the terminal device comprises functional modules for performing the method of the first aspect or any possible implementation of the first aspect.

In a third aspect, a communication device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the first aspect or any possible implementation of the first aspect.

In a fourth aspect, an apparatus for cell handover is provided for implementing the method of the first aspect or any possible implementation of the first aspect. In particular, the apparatus comprises a processor for calling and running a computer program from a memory, such that a device in which the apparatus is installed performs the method as described above in the first aspect or any possible implementation of the first aspect.

The device may be, for example, a chip.

In a fifth aspect, a computer readable storage medium is provided for storing a computer program. The computer program causes a computer to carry out the method of the first aspect or any possible implementation of the first aspect.

In a sixth aspect, a computer program product is provided comprising computer program instructions. The computer program instructions cause a computer to perform the method of the first aspect or any possible implementation of the first aspect.

In a seventh aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the first aspect or any of the possible implementations of the first aspect.

Based on the technical scheme, the terminal equipment reports the position information of the terminal equipment to the network equipment based on the information of the timer, the moving distance of the terminal equipment, the area where the terminal equipment is located and the like, so that the network equipment can execute related operations of cell switching. The network equipment can realize effective cell switching in the NTN system based on the channel quality and the real-time position of the terminal equipment, and the success rate of the cell switching is improved.

Drawings

Fig. 1 is a schematic diagram of one possible wireless communication system to which embodiments of the present application apply.

Fig. 2 is a flow chart interaction diagram of a cell handover.

Fig. 3 is a flow chart interaction diagram of conditional switching.

Fig. 4 is a schematic flow chart of a method of cell handover according to an embodiment of the present application.

Fig. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of an apparatus for cell handover according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile Communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, universal mobile telecommunication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), 5G system or other communication system, etc.

In general, conventional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), and inter-vehicle (Vehicle to Vehicle, V2V) communication, etc., to which the embodiments of the present application are also applicable.

In addition, the communication system of the embodiment of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, an independent (SA) networking scenario, and the like.

Exemplary, a communication system 100 to which embodiments of the present application apply is shown in fig. 1. Communication system 100 includes a network device 110. Network device 110 may be a device in communication with terminal device 120. Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area.

In the embodiment of the present application, the network device 110 may be, for example, a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system; base stations (NodeB, NB) in WCDMA systems; an evolved node b (Evolutional Node B, eNB or eNodeB) in the LTE system; a wireless controller in a cloud wireless access network (Cloud Radio Access Network, CRAN). Alternatively, the network device 110 may be a mobile switching center, a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network device in a 5G network or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc. Alternatively, the network device 110 may be a satellite in an NTN system.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 may be mobile or stationary. The terminal device 120 may be, for example, a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., as the embodiments of the application are not limited in this respect. In addition, direct terminal (D2D) communication may be performed between the terminal devices 120.

Network device 110 may serve a cell through which terminal device 120 communicates with network device 110. The cell may be a cell corresponding to network device 110. The cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell). The small cells herein may include urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells), etc. The small cells have the characteristics of small coverage area and low transmitting power, and are suitable for providing high-rate data transmission service.

Fig. 1 exemplarily shows one network device and two terminal devices, but the present application is not limited thereto. Communication system 100 may include multiple network devices and may include other numbers of terminal devices within the coverage area of each network device. In addition, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like.

The embodiments of the present application may be applied to non-terrestrial communication network (Non Terrestrial Network, NTN) systems. At this time, the network device 110 in fig. 1 may communicate with the terminal device through a satellite, or the network device 110 itself may be a satellite.

NTN typically provides communication services to terrestrial users by way of satellite communications. Satellite communications have many unique advantages over terrestrial cellular communications. First, satellite communications are not limited by the user region, for example, general land communications cannot cover areas where communication devices cannot be installed, such as oceans, mountains, deserts, etc., or communication coverage is not performed due to rarity of population, while for satellite communications, since one satellite can cover a larger ground, and the satellite can orbit around the earth, theoretically every corner on the earth can be covered by satellite communications. And secondly, satellite communication has great social value. Satellite communication can be covered in remote mountain areas, poor and backward countries or regions with lower cost, so that people in the regions enjoy advanced voice communication and mobile internet technology, and the digital gap between developed regions is reduced, and the development of the regions is promoted. Again, the satellite communication distance is far, and the communication cost does not increase significantly as the communication distance increases. And finally, the satellite communication has high stability and is not limited by natural disasters.

Communication satellites are classified into Low Earth Orbit (LEO) satellites, medium Earth Orbit (MEO) satellites, geosynchronous Orbit (Geostationary Earth Orbit, GEO) satellites, high elliptical Orbit (High Elliptical Orbit, HEO) satellites, and the like according to the Orbit heights. LEO satellites and GEO satellites are mainly studied in the current stage. Wherein the LEO satellite has a height range of 500 km-1500 km and a corresponding orbital period of about 1.5 hours-2 hours. The signal propagation delay for single hop communications between users is typically less than 20ms. The maximum satellite visible time is 20 minutes, the signal propagation distance is short, the link loss is small, and the requirement on the transmitting power of the user terminal is low. GEO satellites have an orbital altitude of 35786km and a period of 24 hours around earth rotation, with signal propagation delays of 250ms for single hop communications between users.

In order to ensure the coverage of the satellite and improve the system capacity of the whole satellite communication system, the satellite adopts multiple beams to cover the ground, and one satellite can form tens or hundreds of beams to cover the ground; a satellite beam may cover a ground area of several tens to hundreds of kilometers in diameter.

In the current NR system, when a terminal using a network service moves from one cell to another cell, or due to radio transmission traffic load adjustment, active operation maintenance, equipment failure, etc., in order to ensure continuity of communication and quality of service, the system transfers a communication link between the terminal device and a source cell to a new cell, i.e., performs a cell handover procedure. It should be understood that a handover cell may be understood as a handover of a network device, e.g. a terminal device, from a Source base station (Source gNB) to a target base station (targetnb).

For ease of understanding, the flow of cell handover is described below by taking an Xn interface based handover procedure as an example. As shown in fig. 2, the switching process mainly includes three processes of switching preparation, performing switching, and switching completion, and specifically includes some or all of the following steps:

in 201, the terminal device performs measurement control and measurement reporting (Measurement Control and Report).

In 202, the source base station makes a handover decision (Handover Decision).

In 203, the source base station sends a Handover Request (Handover Request) message to the target base station.

Wherein, the switching request message includes the relevant information of the switching preparation.

In 204, the target base station performs admission control (Admission Request) to improve the success rate of the handover.

In 205, the target base station sends a handover request acknowledge (Handover Request Acknowledge) message to the source base station.

The handover request confirmation message includes a handover command generated by the target base station, and the source base station does not allow any modification to the handover command generated by the target base station, but directly forwards the handover command to the terminal device.

In 206, a radio access network (Wireless Access Network, RAN) handover begins (Handover Initiation).

The terminal device immediately performs the handover procedure after receiving the handover command, i.e. disconnects the source base station and connects with the target base station, e.g. initiates random access, sends an RRC handover complete message to the target base station, etc.

At 207, the SN state transitions (SN Status Transfer).

The source base station transmits a Sequence Number (SN) status to the target base station.

At 208, the handoff is complete.

In 209, the target base station sends a path switch request (Path Switch Request) message to the AMF informing its terminal device that the cell has been changed.

The switching of the air interface has been successfully completed at this time.

At 210, path switching (Path Switch in UPF (s)) is performed at the user plane function (User Plane Function, UPF).

In 211, the access and mobility management function (Access and Mobility Management Function, AMF) sends a path switch request acknowledgement (Path Switch Request Acknowledge) message to the target base station.

In steps 209 to 211, the target base station completes a path conversion procedure with the AMF and the UPF, the purpose of which is to convert the data path of the user plane from the source base station to the target base station.

After switching paths, packets of the forward path and the new path may arrive alternately at the target base station. The target base station may deliver all forwarded data packets to the terminal device before delivering packets received from the new path. This ensures the correct transmission sequence. To assist the reordering function at the target base station, the AMF may send one or more "end markers" on the old path immediately after switching paths, excluding the user data. After sending the packet containing the end identifier, the AMF should not send any data packets on the old path. After receiving the packet containing the end identifier, the source base station should send the packet to the target base station if forward forwarding is active for this bearer. After detecting the packet containing the end identifier, the target base station should discard it and initiate any necessary procedures to maintain the user's in-order delivery.

In 212, the target base station sends a UE context release message to the source base station.

And after receiving the path conversion confirmation message, the target base station informs the source base station that the switching is successful and triggers the resource release of the source base station. After receiving the UE context release message, the source base station may release the radio bearer and the control plane resources related to the UE context.

In addition, for some special scenarios, such as a terminal device moving at a high speed or under a high frequency condition, the terminal device needs to be frequently Handed Over (HO). Thus, conditional switching (Conditional handover) can be employed. The conditional handover avoids the problem that the handover preparation time is too long, which results in that the terminal equipment needs to be handed over later, and the HO command (HO command) can be configured for the terminal equipment in advance. On the other hand, for the high-speed rail scenario, the moving track of the terminal device is specific, so the source base station may configure the target base station to the terminal device in advance, and carry the condition for triggering the terminal device to perform handover in the HO command. And when the configured condition is met, the terminal equipment initiates an access request to the target base station.

For example, as shown in fig. 3, in 301, the terminal device sends a measurement report to a source base station.

In 302, handover preparation is performed between a source base station and a target base station.

In 303, the source base station sends a handover command to the terminal device.

In 304, when the handover condition is satisfied, random access is performed between the terminal device and the target base station.

The process related to measurement reporting, handover preparation, and handover command may refer to the corresponding descriptions in fig. 2, and for brevity, will not be repeated here.

Before the cell handover is performed, measurement configuration is required, and the network device may configure a measurement object, a measurement condition, a handover condition, or the like to the terminal device, so that the terminal device may determine whether the cell handover is required. The measurement refers to mobility measurement in a connected state.

The measurement objects take frequency points as basic units, each configured measurement object is an independent frequency point and has independent measurement object identification, and for common-frequency and different-frequency measurement of evolved universal terrestrial radio access (Evolved Universal Terrestrial Radio Access, E-UTRA), the measurement objects are a single E-UTRA carrier frequency. The cell associated with the carrier frequency, E-UTRA may configure a cell Offset (Offset) list and a blacklisted cell list. No operations are performed on the blacklisted cells in the measurement evaluation and measurement report.

The reporting configuration is divided into event triggering reporting and periodic triggering reporting according to types, and each reporting configuration has an independent identifier. The event Trigger reporting configuration includes an event type and a threshold value, and a Time To Trigger (TTT) that satisfies a Trigger condition, which may also be referred to as a Trigger Time. The reporting configuration of the periodic trigger type comprises a reporting period and a periodic trigger purpose.

Measurement events supported in current NR systems include the following:

event A1: the serving cell is above an absolute threshold (serving > threshold);

event A2: the serving cell is below an absolute threshold (serving < threshold);

event A3: the neighbor cell is higher than the primary cell/the primary and secondary cells by an offset;

event A4: neighbor cells are above an absolute threshold (neighbor > threshold);

event A5: the primary cell/primary secondary cell is below one absolute threshold 1 and the neighbor cell/secondary cell is above another absolute threshold 2;

event A6: the neighbor cell is higher than the auxiliary cell by an offset;

event B1: the neighbor cell is above an absolute threshold;

event B2: the primary cell is above one absolute threshold 1 and the neighbor cell is above another absolute threshold 2.

The independent measurement identifier associates the measurement object with a specific reporting configuration, and if the terminal device reaches a measurement start threshold, the terminal device determines whether to perform the measurement according to the existence of the measurement identifier.

After the terminal equipment finishes the measurement, when meeting certain triggering conditions, the terminal equipment performs measurement report evaluation, if meeting reporting conditions, the terminal equipment performs measurement report filling and sends the measurement report to the network equipment.

Measurement reporting is mainly divided into three categories:

1. event triggering

The terminal device triggers the sending of the measurement report only when the measurement event of the network configuration enters the threshold and lasts for a period of time, and the process is finished after the measurement report is sent once. The reporting configuration corresponding to this criterion is:

the trigger type is an event and comprises a measurement event obtained from A1-A6 and B1-B2 and a threshold parameter thereof;

reporting times are 1;

the reporting interval is ignored by the UE no matter what value is allocated.

2. Periodic reporting

After the network configuration measurement, the terminal equipment performs measurement of corresponding frequency points according to the configuration content and sends measurement reports according to a specified reporting period and interval.

The trigger period is "period" including "reportCGI", "reportStrongestCell".

If the reporting destination is "reportCGI" and the number of reporting times is equal to 1, if the reporting destination is "reportstrongstcell", the number of reporting times may be greater than 1.

The terminal device will start the T321 timer once it is configured for reporting of the "reportCGI" purpose. In order for the network to be able to obtain the information needed to build the neighbor cell list as soon as possible. If the content required for the report has been obtained before the timer expires, the terminal device may stop T321 and initiate the report in advance.

3. Event triggered period reporting

The terminal device triggers the sending of the measurement report only when the measurement event of the network configuration enters the threshold for a period of time. After the measurement report is triggered, a timer between a plurality of times of measurement and a counter of the number of times of measurement are started until the number of times of report reaches the requirement, and the process is finished. The reporting configuration corresponding to this criterion is:

the trigger type is an event, and comprises one measurement event from A1 to A5 and a threshold parameter thereof;

reporting times are more than 1;

the reporting interval is effective, and the network sets a reporting period timer according to the configured interval parameters.

In NTN systems, the satellite is far from the ground, the signal transmission delay between the terminal device and the satellite increases substantially, and the source base station may fail when receiving a measurement report. In addition, due to the continuous movement of the satellite, the measurement report reported by the terminal device for the satellite also fails. Thus, an efficient cell handover cannot be guaranteed.

Therefore, the cell switching scheme provided by the application can obtain more accurate measurement reports, and effectively realize cell switching in the NTN system.

Fig. 4 is a schematic flow chart of a method of cell handover according to an embodiment of the present application. The method shown in fig. 4 may be performed by a terminal device. Such as terminal device 120 in fig. 1. As shown in fig. 4, the method 400 includes some or all of the following steps.

In 410, the terminal device sends location information of the terminal device to the network device based on at least one of the following information: a timer, a counter, a moving distance of the terminal device, and an area where the terminal device is located.

Wherein the location information is used for cell handover.

In this embodiment, the terminal device needs to report its location information to the network device for the network device to perform the cell handover related operation. The network device may implement efficient cell switching in the NTN system based on the channel quality and the real-time location of the terminal device.

The network device may be a satellite; or a ground station, such as a base station, etc.

When the network equipment is a satellite, the distance between the terminal equipment and the network equipment is the distance between the terminal equipment and the satellite; when the network device is a ground station, the distance between the terminal device and the network device is the sum of the distance between the terminal device and the satellite and the distance between the satellite and the ground station.

For example, in the case of transparent GEO/LEO, the satellite may implement the function of a base station, so that the network device is a satellite, or the satellite is used as a network device to communicate with the terminal device. At this time, the distance between the terminal device and the network device is the distance between the terminal device and the satellite. For another example, in the case of regenerative GEO/LEO, the uplink data from the terminal device is transmitted to the ground station through the satellite, and the downlink data from the ground station is transmitted to the terminal device through the satellite, so the network device is the ground station. In this case, the distance between the terminal device and the network device includes the sum of the distance between the terminal device and the satellite and the distance between the satellite and the ground station. And after receiving the measurement report reported by the terminal equipment, the satellite forwards the measurement report to the ground station.

For the LEO case, the satellite is moving and the distance between the satellite and the ground station is also changing; whereas for the GEO case the satellite is stationary and the distance between the satellite and the ground station is fixed.

And the terminal equipment performs cell measurement to obtain a measurement report and sends the measurement report to the network equipment. The network device may perform mobility management for the terminal device, such as cell handover, etc., based on the measurement report and the location information of the terminal device. For example, the network device may determine the distance between the current terminal device and the network device according to the location information of the terminal device, and adjust the measurement value in the measurement report according to the change situation of the distance between the current terminal device and the network device, so that the measurement report is applicable to the terminal device and the network device in the current location, and the network device may perform the related operation of cell handover based on the adjusted measurement report, for example, perform the related operation performed by the source base station in fig. 2 and fig. 3, so as to select a suitable target cell for the terminal device, so as to implement cell handover in the NTN system.

The terminal equipment can report the position information based on a timer, a counter, the movement condition of the terminal equipment and the like. The movement condition of the terminal equipment can be characterized by the movement distance of the terminal equipment, the area where the terminal equipment is located and other information. The process of transmitting the location information by the terminal device will be described in detail.

Mode 1

In 410, the terminal device sends location information of the terminal device to the network device based on the timer.

For example, when the terminal device meets a preset condition, starting the timer; and when the timer expires, transmitting its location information to the network device.

For another example, the terminal device sends its location information to the network device and starts the timer when the preset condition is satisfied. Wherein the terminal device no longer transmits the location information to the network device before the timer expires.

It is to be understood that the preset conditions may include, for example, at least one of the following:

the terminal equipment receives indication information which is sent by the network equipment and used for indicating the terminal equipment to send the position information;

the terminal equipment enters a connection state;

a measurement event configured by the network device occurs;

triggering a measurement report of cell measurement;

the channel quality of the serving cell of the terminal device is lower than a first threshold;

the channel quality of the neighbor cell of the terminal equipment is higher than a second threshold;

the terminal device transmits the location information each time.

In this embodiment, the timer controls the behavior of reporting the location information by the terminal device, so that frequent reporting can be avoided. The timing duration of the timer may be configured by the network device, preconfigured, or determined by the terminal device itself.

For example, the terminal device may select, from among a plurality of timers having different time durations, a timer corresponding to the moving speed according to the moving speed.

Assume that the network device configures 3 timers for the terminal device, namely timer 1, timer 2 and timer 3. If the terminal equipment is in a low-speed moving state, selecting a timer 1; if the terminal equipment is in a medium-speed moving state, selecting a timer 2; the terminal device selects the timer 3 if it is in a high-speed moving state. Wherein, for example, the timing duration of timer 1 > the timing duration of timer 2 > the timing duration of timer 3 may be set.

The terminal device may determine whether it is in a low-speed moving state, a medium-speed moving state, or a high-speed moving state according to the distance moved in the time T. For example, if the distance moved during time T is greater than D1, it is considered to be in a high-speed moving state; if the distance moved during time T is less than D2, then the device is considered to be in a low-speed movement state; if the distance moved during time T is between D1 and D2, then it is considered to be in a medium speed movement.

After selecting the timer, the terminal device performs reporting of the location information based on the timer.

The terminal equipment can start a timer based on the preset condition; the network device may also instruct the terminal device to start the timer by means of the instruction information.

The terminal device starts the timer when the preset condition is met, and sends the position information to the network device when the timer is overtime. At this time, the terminal device may restart the timer when sending the location information to the network device, so as to implement periodic location reporting; alternatively, for aperiodic location reporting, the terminal device can stop the timer when sending the location information to the network device.

The terminal device may also start or restart the timer under other conditions. For example, when the terminal device enters a connected state, the timer is started; starting the timer when a measurement event configured by the network device occurs, such as the aforementioned times A1-A6 and B1-B2; when triggering a measurement report, starting the timer; starting the timer when the channel quality of the service cell is poor to a certain extent; starting the timer when the channel quality of the adjacent cell is better than a certain degree; alternatively, the timer is started when the terminal device previously transmitted the location information.

Further, alternatively, the terminal device may stop the timer when receiving the instruction information sent by the network device for instructing the terminal device to stop the timer.

Mode 2

In 410, the terminal device sends the location information to the network device based on its distance of movement.

For example, the terminal device determines whether the distance between the current position and the position where the position information was last transmitted is greater than a third distance; if the distance is larger than the third distance, the terminal equipment sends the position information to the network equipment.

Specifically, in the moving process, if the distance between the current position of the terminal equipment and the position of the terminal equipment when the position information is transmitted last time exceeds the third distance, the terminal equipment transmits the position information to the network equipment. If the distance between the current position and the position at which the position information was last transmitted does not exceed the third distance, the position information does not need to be transmitted.

The third distance may be configured by the network device, preconfigured, or determined by the terminal device itself. For example, the terminal device may select the third distance corresponding to the moving speed among a plurality of preset distances according to the moving speed thereof.

Assume that the network device configures 3 distance values for the terminal device, D1, D2 and D3, respectively. If the terminal equipment is in a low-speed moving state, selecting a third distance as D1; if the terminal equipment is in a medium-speed moving state, selecting a third distance as D2; if the terminal device is in a high-speed moving state, the third distance is selected to be D3. Wherein, for example, D1 < D2 < D3 can be set.

In this embodiment, the terminal device sends its location information to the network device based on the movement distance. Because the moving distance of the terminal equipment is larger, for example, the moving distance exceeds the third distance, when the cell switching is greatly affected, the terminal equipment needs to send the position information to the network equipment so that the network equipment can adjust the measurement result and be used for the cell switching; and when the moving distance of the terminal equipment is smaller and the influence on the cell switching is not great, the position information of the terminal equipment can not be sent, so that frequent signaling interaction is avoided.

Mode 3

In 410, the terminal device sends the location information to the network device based on the area in which it is located.

For example, the terminal device transmits the location information to the network device when moving from the first area to the second area.

The embodiment of the application does not limit the division of the area. For example, the first region and the second region are different regions within the same cell; or the first area and the second area are areas where different cells are located; alternatively, the first region and the second region are regions covered by different beams of the satellite.

That is, each cell may be regarded as one area; a cell may also be divided into a plurality of areas; the coverage area of each beam of the satellite may also be an area.

Different regions may have different identifications. The area size and number may be obtained from the area information. The area information may be transmitted from the network device to the terminal device, which receives the area information, thereby determining the range of each area. The region information may also be preconfigured, e.g. protocol agreed.

The area information includes, for example, at least one of the following information: the length of each region, the width of each region, the number of regions in the longitudinal direction, and the number of regions in the latitudinal direction.

Each time the terminal device moves to a new area, its location information may be sent to the network device. If the area in which the terminal device is located is unchanged, i.e. the terminal device moves within an area, the terminal device does not need to send its location information.

In this embodiment, the terminal device sends its location information to the network device based on the area in which it is located. When the mobile distance of the terminal equipment is large, so that the terminal equipment enters another area and has great influence on cell switching, the terminal equipment needs to send the position information of the terminal equipment to the network equipment; and when the terminal equipment does not leave the area, the influence on the cell switching is not great, and the position information of the terminal equipment can not be sent, so that frequent signaling interaction is avoided.

In addition, in the embodiment of the present application, the terminal device may further combine part or all of the information such as the timer, the counter, the moving distance, the located area, and the like, so as to implement more effective reporting of the location information.

In one implementation, the terminal device may send its location information to the network device based on the timer, the counter, and the distance traveled.

For example, when the terminal device meets a preset condition, starting the timer; during the timing period of the timer, the terminal equipment adds the count value of the counter and restarts the timer every time the terminal equipment moves a first distance; and during the timing period of the timer, if the count value of the counter reaches a preset value, the terminal equipment sends the position information to the network equipment.

That is, when the number of times the terminal device moves beyond the first distance reaches the threshold value, the location information is transmitted to the network device.

The first distance may be configured by the network device, preconfigured, or determined by the terminal device itself. For example, the terminal device may select the first distance corresponding to the moving speed among a plurality of preset distances according to the moving speed thereof.

In another implementation, the terminal device may send its location information to the network device based on the timer and the distance traveled.

For example, when the terminal device meets a preset condition, starting the timer; during the timing of the timer, if the moving distance of the terminal device is greater than the second distance, the terminal device sends the location information to the network device.

The second distance may be configured by the network device, preconfigured, or determined by the terminal device itself. For example, the terminal device may select the second distance corresponding to the moving speed among a plurality of preset distances according to the moving speed thereof.

In this embodiment, the terminal device only needs to report the location information once during the timing period of the timer, and does not report the location information multiple times. After the terminal equipment starts the timer, if the moving distance of the terminal equipment is larger than the second distance during the timing period of the timer, the terminal equipment sends the position information of the terminal equipment to the network equipment; if the moving distance of the terminal device is smaller than the second distance, the terminal device does not need to send the position information to the network device.

For another example, the terminal device sends its location information to the network device based on the timer and the moving distance, including: when the terminal equipment meets the preset condition, starting the timer; if the timer is overtime, the moving distance of the terminal equipment is larger than the fourth distance, and the terminal equipment sends the position information to the network equipment.

If the position information is sent when the timer is overtime, the terminal equipment may not move when the timer is overtime, and the position information does not need to be updated. Therefore, in this embodiment, when the timer expires and the moving distance of the terminal device is greater than the fourth distance, the terminal device sends the location information to the network device, thereby avoiding unnecessary location reporting. For example, the terminal device starts the timer when the aforementioned preset condition is satisfied. And if the terminal equipment does not send the position information before, sending the position information to the network equipment when the moving distance of the terminal equipment exceeds the fourth distance. If the terminal device has previously sent location information, it sends its location information to the network device when the timer expires and the movement distance exceeds a fourth distance. The terminal device may restart the timer when transmitting the location information.

For another example, the terminal device sends location information of the terminal device to the network device based on the counter and the moving distance, including: when the terminal equipment meets the preset condition, starting the counter; every time the terminal equipment moves a fifth distance, the terminal equipment adds one to the count value of the counter; if the count value of the counter reaches a preset value, the terminal equipment sends the position information to the network equipment.

In addition, the terminal device may also transmit location information based on the timer and the mobile area. For example, during the timing of the timer, if the terminal device moves from the first area to the second area, its location information is transmitted to the network device.

When the terminal equipment transmits the position information by combining the factors of a timer, a counter, a moving distance, a location area and the like, unnecessary position reporting, such as position reporting generated when the terminal equipment does not move, can be avoided, so that signaling interaction is reduced.

In this embodiment of the present application, the location information reported by the terminal device may be carried in radio resource control (Radio Resource Control, RRC) signaling, for example. Wherein the location information and the measurement report may be carried in the same or different RRC signaling.

The position information reported by the terminal equipment can be an absolute position, namely, the coordinate of the current position of the terminal equipment; alternatively, the position information may be a relative position, for example, the position information is a distance between the current position and a position where the position information was previously transmitted.

It should be noted that, on the premise of no conflict, the embodiments described in the present application and/or the technical features in the embodiments may be arbitrarily combined with each other, and the technical solutions obtained after the combination should also fall into the protection scope of the present application.

In various embodiments of the present application, the sequence number of each process does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

The method for transmitting a downlink signal according to the embodiment of the present application is described above in detail, and in the following, with reference to fig. 5 to fig. 7, an apparatus according to the embodiment of the present application will be described, and technical features described in the method embodiment are applicable to the following apparatus embodiments.

Fig. 5 is a schematic block diagram of a communication device 500 according to an embodiment of the present application. As shown in fig. 5, the communication device 500 includes a transceiving unit 510 and a processing unit 520.

The transceiver unit 510 is configured to: for transmitting location information of the terminal device to a network device based on at least one of the following information: the mobile terminal comprises a timer, a counter, a moving distance of the terminal equipment and an area where the terminal equipment is located, wherein the position information is used for cell switching.

Therefore, the terminal device reports its location information to the network device based on the information such as the timer, the moving distance of the terminal device, and the area where the terminal device is located, so as to be used for the network device to perform the related operation of cell handover. The network equipment can realize effective cell switching in the NTN system based on the channel quality and the real-time position of the terminal equipment, and the success rate of the cell switching is improved.

Optionally, the transceiver unit 510 is specifically configured to: when a preset condition is met, sending the position information to the network equipment and starting the timer; wherein the processing unit 520 is further configured to: before the timer expires, the control transceiver unit 510 no longer transmits the location information to the network device.

Optionally, the processing unit 520 is configured to: when a preset condition is met, starting the timer; the transceiver unit 510 is specifically configured to: and sending the position information to the network equipment when the timer expires.

Optionally, the processing unit 520 is configured to: when a preset condition is met, starting the timer; during the timing period of the timer, adding the count value of the counter and restarting the timer every time the terminal equipment moves a first distance; the transceiver unit 510 is specifically configured to: and sending the position information to the network equipment if the count value of the counter reaches a preset value during the timing period of the timer.

Optionally, the processing unit 520 is further configured to: and resetting the counter when the timer expires.

Optionally, the processing unit 520 is configured to: when a preset condition is met, starting the timer; the transceiver unit 510 is specifically configured to: and during the timing of the timer, if the moving distance of the terminal equipment is larger than a second distance, the terminal equipment sends the position information to the network equipment.

Optionally, the processing unit 520 is configured to: when a preset condition is met, starting the timer; the transceiver unit 510 is specifically configured to: and if the movement distance of the terminal equipment is larger than the fourth distance when the timer is overtime, sending the position information to the network equipment.

Optionally, the processing unit 520 is further configured to: and selecting the timer corresponding to the moving speed from a plurality of timers with different timing duration according to the moving speed of the terminal equipment.

Optionally, the processing unit 520 is further configured to: and restarting the timer when the terminal equipment sends the position information to the network equipment.

Optionally, the processing unit 520 is further configured to: and stopping the timer when the terminal equipment sends the position information to the network equipment.

Optionally, the processing unit 520 is further configured to: and stopping the timer when the terminal equipment receives the indication information which is sent by the network equipment and is used for indicating the terminal equipment to stop the timer.

Optionally, the processing unit 520 is configured to: when a preset condition is met, starting the counter; every time the terminal equipment moves a fifth distance, adding one to the count value of the counter; the transceiver unit 510 is specifically configured to: and if the count value of the counter reaches a preset value, sending the position information to the network equipment.

Optionally, the preset condition includes at least one of the following: the terminal equipment receives indication information which is sent by the network equipment and used for indicating the terminal equipment to send position information; the terminal equipment enters a connection state; a measurement event configured by the network equipment occurs; triggering a measurement report of cell measurement; the channel quality of the serving cell of the terminal device is lower than a first threshold; the channel quality of the neighbor cell of the terminal equipment is higher than a second threshold; the terminal device transmits the position information each time.

Optionally, the processing unit 520 is configured to: judging whether the distance between the current position and the position where the position information is transmitted last time is larger than a third distance; the transceiver unit 510 is specifically configured to: and when the distance between the current position and the position where the position information is transmitted last time is larger than the third distance, transmitting the position information to the network equipment.

Optionally, the processing unit 520 is further configured to: and selecting the third distance corresponding to the moving speed from a plurality of preset distances according to the moving speed.

Optionally, the transceiver unit 510 is configured to: and when the terminal equipment moves from the first area to the second area, sending the position information of the terminal equipment to the network equipment.

Optionally, the first area and the second area are different areas in the same cell; or the first area and the second area are areas where different cells are located; alternatively, the first region and the second region are regions covered by different beams of a satellite.

Optionally, the transceiver unit 510 is further configured to: receiving area information sent by network equipment, wherein the area information comprises at least one of the following information: the length of each region, the width of each region, the number of regions in the longitudinal direction, and the number of regions in the latitudinal direction.

Optionally, the location information is carried in radio resource control RRC signaling.

Alternatively, the location information and the measurement report are carried in the same or different RRC signaling.

Optionally, the location information includes: the current position of the terminal equipment; or, a distance between the current position and a position at which the position information was previously transmitted.

Optionally, the processing unit 520 is further configured to: cell measurement is carried out, and a measurement report is obtained; the transceiver unit 510 is further configured to: and sending the measurement report to the network equipment, wherein the measurement report is used for cell switching.

Optionally, the network device is a satellite, and the distance between the terminal device and the network device is: a distance between the terminal device and the satellite; or, the network device is a ground station, and the distance between the terminal device and the network device is: the distance between the terminal device and the satellite, and the sum of the distances between the satellite and the ground station.

It should be understood that the terminal device 500 may perform the corresponding operations performed by the terminal device in the method shown in fig. 4, and are not described herein for brevity.

Fig. 6 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 shown in fig. 6 comprises a processor 610, from which the processor 610 may call and run a computer program to implement the method in the embodiments of the present application.

Optionally, as shown in fig. 6, the communication device 600 may also include a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the methods in embodiments of the present application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

Optionally, as shown in fig. 6, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

The transceiver 630 may include a transmitter and a receiver, among others. Transceiver 630 may further include antennas, the number of which may be one or more.

Optionally, the communication device 600 may be specifically a terminal device in the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 600 may be specifically a network device in the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity. The network device may be a satellite or a ground station.

Fig. 7 is a schematic block diagram of an apparatus for cell handover according to an embodiment of the present application. The apparatus 700 shown in fig. 7 includes a processor 710, and the processor 710 may call and run a computer program from a memory to implement the methods in the embodiments of the present application.

Alternatively, as shown in fig. 7, the apparatus 700 may include a memory 720. Wherein the processor 710 may call and run a computer program from the memory 720 to implement the methods in embodiments of the present application.

Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.

Optionally, the apparatus 700 comprises an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the apparatus 700 comprises an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the apparatus 700 may be applied to a network device in the embodiment of the present application, and the communication apparatus may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity. The network device may be a satellite or a ground station.

Optionally, the apparatus 700 may be applied to a terminal device in the embodiment of the present application, and the communication apparatus may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

The device 700 is, for example, a chip. The chip may be a system-on-chip, or a system-on-chip, etc.

The processor in the embodiments of the present application may be an integrated circuit chip with signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

The memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM).

The foregoing memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program. Optionally, the computer readable storage medium may be applied to a terminal device in an embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the terminal device in each method of the embodiment of the present application, which is not described in detail for brevity. Optionally, the computer readable storage medium may be applied to a network device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described in detail for brevity. The network device may be a satellite or a ground station.

Embodiments of the present application also provide a computer program product comprising computer program instructions. Optionally, the computer program product may be applied to a terminal device in an embodiment of the present application, and the computer program instructions cause the computer to execute a corresponding procedure implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity. Optionally, the computer program product may be applied to a network device in the embodiments of the present application, and the computer program instructions cause the computer to execute corresponding flows implemented by the network device in the methods in the embodiments of the present application, which are not described herein for brevity. The network device may be a satellite or a ground station.

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

In the present embodiments, the terms "system" and "network" are often used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the present embodiment, "B corresponding to (corresponding to) a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.

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

Those skilled in the art will clearly understand that, for convenience and brevity, the specific working process of the system, apparatus and unit described above may refer to the corresponding process in the foregoing method embodiment, which is not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purposes of the solution of the embodiment of the present application.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

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

Claims

1. The cell switching method is characterized by being applied to terminal equipment in a non-ground communication network system, wherein the non-ground communication network system further comprises network equipment, the network equipment is a satellite, and the distance between the terminal equipment and the network equipment is as follows: a distance between the terminal device and the satellite; or, the network device is a ground station, and the distance between the terminal device and the network device is: the sum of the distances between the terminal device and the satellite and the distances between the satellite and the ground station; the method comprises the following steps:

the terminal device sends the location information of the terminal device to a network device based on: the mobile terminal comprises a timer, a counter and a mobile distance of the terminal equipment, wherein the position information is used for cell switching;

specific: when the terminal equipment meets preset conditions, starting the timer; during the timing period of the timer, the terminal equipment restarts the timer by adding the count value of the counter together every time the terminal equipment moves a first distance, wherein the first distance corresponds to the movement speed of the terminal equipment; during the timing period of the timer, if the count value of the counter reaches a preset value, the terminal equipment sends the position information to the network equipment;

The preset condition includes at least one of the following:

the terminal equipment receives indication information which is sent by the network equipment and used for indicating the terminal equipment to send position information;

the terminal equipment enters a connection state;

a measurement event configured by the network equipment occurs;

triggering a measurement report of cell measurement;

the terminal device transmits the position information each time.

2. The method according to claim 1, wherein the method further comprises:

when the terminal equipment meets the preset condition, sending the position information to the network equipment and starting the timer;

wherein the method further comprises: before the timer expires, the terminal device no longer transmits the location information to the network device.

3. The method according to claim 1, wherein the method further comprises:

when the terminal equipment meets the preset condition, starting the timer;

and the terminal equipment sends the position information to the network equipment when the timer expires.

4. The method according to claim 1, wherein the method further comprises:

and resetting the counter when the timer expires.

5. The method according to any one of claims 2 to 4, further comprising:

and the terminal equipment selects the timer corresponding to the moving speed from a plurality of timers with different timing duration according to the moving speed.

6. The method according to any one of claims 3 to 5, further comprising:

and restarting the timer when the terminal equipment sends the position information to the network equipment.

7. The method according to any one of claims 3 to 5, further comprising:

and the terminal equipment stops the timer when sending the position information to the network equipment.

8. The method according to any one of claims 2 to 6, further comprising:

and the terminal equipment stops the timer when receiving the indication information which is sent by the network equipment and is used for indicating the terminal equipment to stop the timer.

9. The method according to claim 1, wherein the method further comprises:

And when the terminal equipment moves from the first area to the second area, sending the position information of the terminal equipment to the network equipment.

10. The method of claim 9, wherein the step of determining the position of the substrate comprises,

the first area and the second area are different areas in the same cell; or,

the first area and the second area are areas where different cells are located; or,

the first region and the second region are regions covered by different beams of a satellite.

11. The method according to claim 9 or 10, characterized in that the method further comprises:

the terminal equipment receives area information sent by the network equipment, wherein the area information comprises at least one of the following information: the length of each region, the width of each region, the number of regions in the longitudinal direction, and the number of regions in the latitudinal direction.

12. The method according to any of claims 1 to 11, wherein the location information is carried in radio resource control, RRC, signaling.

13. The method of claim 12, wherein the location information and the measurement report are carried in the same or different RRC signaling.

14. The method according to any one of claims 1 to 13, wherein the location information comprises:

the current position of the terminal equipment; or,

and the distance between the current position and the position where the position information was previously sent.

15. The method according to any one of claims 1 to 14, further comprising:

the terminal equipment performs cell measurement to obtain a measurement report;

the terminal device sends the measurement report to the network device, wherein the measurement report is used for cell switching.

16. The terminal equipment is characterized by being applied to terminal equipment in a non-ground communication network system, wherein the non-ground communication network system further comprises network equipment, the network equipment is a satellite, and the distance between the terminal equipment and the network equipment is as follows: a distance between the terminal device and the satellite; or, the network device is a ground station, and the distance between the terminal device and the network device is: the sum of the distances between the terminal device and the satellite and the distances between the satellite and the ground station; comprising the following steps:

a transceiver unit, configured to send location information of the terminal device to a network device based on the following information: the mobile terminal comprises a timer, a counter and a mobile distance of the terminal equipment, wherein the position information is used for cell switching;

The processing unit is used for starting the timer when a preset condition is met; during the timing period of the timer, the terminal equipment restarts the timer by adding the count value of the counter together every time the terminal equipment moves a first distance, wherein the first distance corresponds to the movement speed of the terminal equipment; during the timing period of the timer, if the count value of the counter reaches a preset value, the terminal equipment sends the position information to the network equipment;

the preset condition includes at least one of the following:

the terminal equipment enters a connection state;

a measurement event configured by the network equipment occurs;

triggering a measurement report of cell measurement;

the terminal device transmits the position information each time.

17. The terminal device according to claim 16, wherein the transceiver unit is specifically configured to:

when the preset condition is met, sending the position information to the network equipment;

The terminal device further comprises a processing unit, wherein the processing unit is used for:

starting the timer while the terminal equipment transmits the position information;

and before the timer is overtime, controlling the transceiver unit to not send the position information to the network equipment.

18. The terminal device of claim 16, wherein the terminal device further comprises a processing unit configured to:

when the preset condition is met, starting the timer;

the receiving and transmitting unit is specifically configured to: and sending the position information to the network equipment when the timer expires.

19. The terminal device of claim 16, wherein the processing unit is further configured to:

and resetting the counter when the timer expires.

20. The terminal device according to any of the claims 17 to 19, wherein the processing unit is further configured to:

and selecting the timer corresponding to the moving speed from a plurality of timers with different timing duration according to the moving speed of the terminal equipment.

21. The terminal device according to any of the claims 18 to 20, wherein the processing unit is further configured to:

22. The terminal device according to any of the claims 18 to 20, wherein the processing unit is further configured to:

and stopping the timer when the terminal equipment sends the position information to the network equipment.

23. The terminal device according to any of the claims 17 to 21, wherein the processing unit is further configured to:

and stopping the timer when the terminal equipment receives the indication information which is sent by the network equipment and is used for indicating the terminal equipment to stop the timer.

24. The terminal device according to claim 16, wherein the transceiver unit is further specifically configured to:

25. The terminal device of claim 24, wherein the terminal device,

the first area and the second area are different areas in the same cell; or,

26. The terminal device according to claim 24 or 25, wherein the transceiving unit is further configured to:

receiving area information sent by network equipment, wherein the area information comprises at least one of the following information: the length of each region, the width of each region, the number of regions in the longitudinal direction, and the number of regions in the latitudinal direction.

27. The terminal device according to any of the claims 16 to 26, characterized in that the location information is carried in radio resource control, RRC, signalling.

28. The terminal device of claim 27, wherein the location information and the measurement report are carried in the same or different RRC signaling.

29. The terminal device according to any of the claims 16 to 28, characterized in that the location information comprises:

the current position of the terminal equipment; or,

30. The terminal device according to any of the claims 16 to 29, wherein the processing unit is further configured to:

Cell measurement is carried out, and a measurement report is obtained;

the transceiver unit is further configured to: and sending the measurement report to the network equipment, wherein the measurement report is used for cell switching.

31. A communication device comprising a processor and a memory for storing a computer program, the processor for invoking and running the computer program stored in the memory to perform the method of any of claims 1 to 15.

32. A chip comprising a processor for invoking and running a computer program from memory, such that a device on which the chip is mounted performs the method of any of claims 1-15.

33. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 15.