CN115708379A - Switching control method and device of user terminal and computer readable storage medium - Google Patents

Abstract

The invention discloses a switching control method and a device of a user terminal and a computer readable storage medium, wherein the switching control method of the user terminal comprises the following steps: obtaining a Buffer Status Report (BSR) of User Equipment (UE), and determining a data volume corresponding to the UE according to the BSR; determining a target data volume interval where the data volume is located, and acquiring a switching measurement starting threshold corresponding to the target data volume interval; determining an uplink signal-to-noise ratio (SINR) of the UE according to a demodulation reference signal (DMRS) and a channel Sounding Reference Signal (SRS) corresponding to the UE; and when the SINR is smaller than the switching measurement starting threshold, acquiring a measurement report corresponding to the UE, and performing cell switching control according to the measurement report. The invention can realize the effect of switching to the cell with better quality when the actual signal quality is poor.

Description

User terminal handover control method, device, and computer-readable storage medium

technical field

The present invention relates to the field of communication technology, and in particular to a user terminal switching control method, device and computer-readable storage medium.

Background technique

In order to continue to provide users with a good network experience in the 5th Generation Mobile Communication Technology (5G) network, the New Radio NR base station needs to control the user terminal (User Equipment, UE) to switch from the current cell to a cell with better signal quality.

In related technologies, when the UE moves to the coverage edge of the cell, the level RSRP (Reference Signal Receiving Power, Reference Signal Received Power) of the serving cell becomes weaker and weaker, and the level RSRP of the neighboring cell becomes stronger. When the level is higher than a certain threshold of the serving cell, a coverage-based handover is triggered. Since the solution recorded in the related art only decides whether to switch based on the change of the UE level, when the UE level is high, but the actual signal quality is already very poor due to factors such as interference, it is impossible to switch to a better quality one. district.

The above content is only used to assist in understanding the technical solution of the present invention, and does not mean that the above content is admitted as prior art.

Contents of the invention

The main purpose of the present invention is to provide a user terminal handover control method, device and computer-readable storage medium, aiming to achieve the effect of handover to a cell with better quality when the actual signal quality is already very poor.

In order to achieve the above object, the present invention provides a user terminal handover control method, which is applied to a new broadcast NR base station, and the user terminal handover control method includes:

Obtaining the buffer status report BSR of the user terminal UE, and determining the amount of data corresponding to the UE according to the BSR;

Determining the target data volume interval where the data volume is located, and acquiring a switching measurement start threshold corresponding to the target data volume interval;

Determine the uplink signal-to-noise ratio SINR of the UE according to the demodulation reference signal DMRS and the channel sounding reference signal SRS corresponding to the UE;

When the SINR is smaller than the handover measurement start threshold, acquire a measurement report corresponding to the UE, and perform cell handover control according to the measurement report.

Optionally, the step of obtaining a measurement report corresponding to the UE, and performing cell handover control according to the measurement report includes:

sending measurement control information to the UE, wherein, when the UE receives the measurement control information, it performs parameter measurement based on the measurement control information to obtain the measurement report;

receiving the measurement report sent by the UE;

Perform cell handover control according to the measurement report.

Optionally, the step of performing cell handover control according to the measurement report includes:

determining the first cell that satisfies the A3 event or the A4 event according to the measurement report;

selecting a second cell from the first cell according to a preset neighbor list, and selecting a target cell from the second cell;

Sending a switching instruction to the UE, where the UE switches from the currently occupied cell to the target cell when receiving the switching instruction.

Optionally, the step of selecting a second cell from the first cell according to the preset neighbor list, and selecting a target cell from the second cell includes:

When the first cell is included in the preset neighbor list, use the first cell as the second cell;

Obtain the level reference signal received power RSRP corresponding to the second cell, and select the target cell from the second cells according to the RSRP.

Optionally, the target data interval is the first interval, the second interval or the third interval; the value in the first interval is greater than the value in the second interval, and the value in the second interval is greater than the value in the second interval The value in the third interval; the switching measurement start threshold corresponding to the first interval is greater than the switching measurement start threshold corresponding to the second interval, and the switching measurement start threshold corresponding to the second interval is greater than The handover measurement start threshold corresponding to the third interval.

In addition, in order to achieve the above object, the present invention also provides a user terminal handover control method, which is applied to the user terminal UE, and the user terminal handover control method includes:

receiving measurement control information sent by the NR base station, wherein the measurement control information is sent when the NR base station detects that the uplink signal-to-noise ratio SINR of the UE is less than a handover measurement start threshold, and the handover measurement start threshold is determined by the NR Obtained by the base station according to the amount of data corresponding to the UE;

performing parameter measurement according to the measurement control information to obtain a measurement result;

When the measurement result meets the pre-configured A3 event or A4 event, generate a measurement report according to the measurement result, and send the measurement report to the NR base station for the NR base station to perform according to the measurement report Cell handover control.

Optionally, before the step of receiving the measurement control information sent by the NR base station, it also includes:

Sending a buffer status report BSR to the NR base station, so that the NR base station can determine the amount of data corresponding to the UE according to the BSR.

In addition, in order to achieve the above object, the present invention also provides a handover control device for a user terminal, the handover control device for a user terminal includes a memory, a processor, and an The switching control program of the user terminal, wherein:

When the handover control program of the user terminal is executed by the processor, any one of the steps of the handover control method applied to the user terminal of the NR base station is implemented;

Or, when the handover control program of the user terminal is executed by the processor, the steps of any user terminal handover control method applied to the user terminal are implemented.

In addition, in order to achieve the above object, the present invention also provides a user terminal handover control device, the user terminal handover control device includes an acquisition module, a determination module, a monitoring module, and a control module, wherein:

The acquiring module is configured to acquire the buffer status report BSR of the user terminal UE, and determine the amount of data corresponding to the UE according to the BSR;

The determining module is configured to determine a target data volume interval in which the data volume is located, and obtain a switching measurement start threshold corresponding to the target data volume interval;

The monitoring module is configured to determine the uplink signal-to-noise ratio SINR of the UE according to the demodulation reference signal DMRS and the channel sounding reference signal SRS corresponding to the UE;

The control module is configured to obtain a measurement report corresponding to the UE when the SINR is smaller than the handover measurement start threshold, and perform cell handover control according to the measurement report;

Alternatively, the handover control device of the user terminal includes a receiving module, a measuring module, and a sending module, wherein:

The receiving module is configured to receive the measurement control information sent by the NR base station, wherein the measurement control information is sent when the NR base station detects that the uplink signal-to-noise ratio SINR of the UE is less than the handover measurement start threshold, the The handover measurement start threshold is obtained by the NR base station according to the amount of data corresponding to the UE;

The measurement module is configured to perform parameter measurement according to the measurement control information to obtain a measurement result;

The sending module is configured to generate a measurement report according to the measurement result when the measurement result satisfies a pre-configured A3 event or A4 event, and send the measurement report to the NR base station for the NR The base station performs cell switching control according to the measurement report.

In addition, in order to achieve the above object, the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores a handover control program of the user terminal, and the handover control program of the user terminal is implemented when executed by a processor. The steps of the handover control method of the user terminal as described above.

A user terminal handover control method, device, and computer-readable storage medium proposed by the embodiments of the present invention first obtain the buffer status report BSR of the user terminal UE, and determine the corresponding data volume of the UE according to the BSR, and then determine the data volume corresponding to the UE. The target data volume interval at the location, and obtain the handover measurement start threshold corresponding to the target data volume interval, and determine the UE's uplink signal-to-noise ratio SINR according to the UE's corresponding demodulation reference signal DMRS and channel sounding reference signal SRS, and then when the SINR is less than the handover When measuring the start threshold, obtain the corresponding measurement report of the UE, and perform cell handover control according to the measurement report, wherein the handover measurement start threshold is determined according to the amount of data in the UE's BSR, and the uplink SINR analyzed based on the UE's uplink signal is used as the start handover The judgment condition of the measurement is that when the SINR is less than the handover measurement start threshold, the signal quality is already very poor, and at the same time it indicates that the service perception effect of the user is already very poor. To a cell with better quality, which solves the problem that the UE cannot switch to a cell with better quality when the signal quality is already very poor.

Description of drawings

Fig. 1 is a device schematic diagram of the hardware operating environment involved in the solution of the embodiment of the present invention;

FIG. 2 is a schematic flowchart of an embodiment of a user terminal handover control method according to the present invention;

FIG. 3 is a schematic flowchart of another embodiment of a method for controlling handover of a user terminal according to the present invention;

FIG. 4 is a schematic flowchart of another embodiment of a user terminal handover control method according to the present invention;

FIG. 5 is a schematic diagram of the modularization of the base station involved in the implementation of the present invention;

Fig. 6 is a schematic diagram of a modularization of a user terminal involved in the implementation of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in FIG. 1 , FIG. 1 is a schematic diagram of the device structure of the hardware operating environment involved in the solution of the embodiment of the present invention.

The apparatus shown in FIG. 1 may specifically be an NR base station, and the base station may include: a processor 1001 , such as a CPU, a memory 1003 , and a communication bus 1002 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The memory 1003 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1003 may also be a storage device independent of the foregoing processor 1001 .

Those skilled in the art can understand that the structure of the base station shown in FIG. 1 is not limited to the base station, and may include more or less components than those shown in the figure, or combine some components, or arrange different components.

As shown in FIG. 1 , the memory 1003 as a computer storage medium may include a handover control program of the user terminal.

In the base station shown in FIG. 1, the processor 1001 can be used to call the handover control program of the user terminal stored in the memory 1003, and perform the following operations:

Obtaining the buffer status report BSR of the user terminal UE, and determining the amount of data corresponding to the UE according to the BSR;

Determining the target data volume interval where the data volume is located, and acquiring a switching measurement start threshold corresponding to the target data volume interval;

Determine the uplink signal-to-noise ratio SINR of the UE according to the demodulation reference signal DMRS and the channel sounding reference signal SRS corresponding to the UE;

When the SINR is smaller than the handover measurement start threshold, acquire a measurement report corresponding to the UE, and perform cell handover control according to the measurement report.

Further, the processor 1001 may also be configured to call the handover control program of the user terminal stored in the memory 1003, and perform the following operations:

sending measurement control information to the UE, wherein, when the UE receives the measurement control information, it performs parameter measurement based on the measurement control information to obtain the measurement report;

receiving the measurement report sent by the UE;

Perform cell handover control according to the measurement report.

Further, the processor 1001 may also be configured to call the handover control program of the user terminal stored in the memory 1005, and perform the following operations:

determining the first cell that satisfies the A3 event or the A4 event according to the measurement report;

selecting a second cell from the first cell according to a preset neighbor list, and selecting a target cell from the second cell;

Sending a switching instruction to the UE, where the UE switches from the currently occupied cell to the target cell when receiving the switching instruction.

Further, the processor 1001 may also be configured to call the handover control program of the user terminal stored in the memory 1005, and perform the following operations:

When the first cell is included in the preset neighbor list, use the first cell as the second cell;

Obtain the level reference signal received power RSRP corresponding to the second cell, and select the target cell from the second cells according to the RSRP.

Alternatively, the apparatus shown in FIG. 1 is a user terminal, referred to as a terminal for short, and the terminal may include: a processor 1001 , such as a CPU, a memory 1003 , and a communication bus 1002 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The memory 1003 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1003 may also be a storage device independent of the foregoing processor 1001 .

Those skilled in the art can understand that the terminal structure shown in FIG. 1 does not constitute a limitation on the terminal, and may include more or less components than those shown in the figure, or combine some components, or arrange different components.

As shown in FIG. 1 , the memory 1003 as a computer storage medium may include a handover control program of the user terminal.

In the terminal shown in FIG. 1, the processor 1001 can be used to call the handover control program of the user terminal stored in the memory 1003, and perform the following operations:

receiving measurement control information sent by the NR base station, wherein the measurement control information is sent when the NR base station detects that the uplink signal-to-noise ratio SINR of the UE is less than a handover measurement start threshold, and the handover measurement start threshold is determined by the NR Obtained by the base station according to the amount of data corresponding to the UE;

performing parameter measurement according to the measurement control information to obtain a measurement result;

When the measurement result meets the pre-configured A3 event or A4 event, generate a measurement report according to the measurement result, and send the measurement report to the NR base station for the NR base station to perform according to the measurement report Cell handover control.

Further, the processor 1001 may also be configured to call the handover control program of the user terminal stored in the memory 1003, and perform the following operations:

Sending a buffer status report BSR to the NR base station, so that the NR base station can determine the amount of data corresponding to the UE according to the BSR.

In order to continuously provide users with a good network experience, the NR base station needs to control the UE to switch from the current cell to a cell with better signal quality.

In order to achieve handover, related technologies mainly include three types. The first is coverage-based handover. When the UE moves to the coverage edge of the cell, the serving cell level RSRP becomes weaker and the neighboring cell level RSRP becomes stronger. When the area level is higher than a certain threshold of the serving cell, coverage-based handover will be triggered. The second type is frequency priority-based handover. High-priority frequency points carry services, while low-priority frequency points provide basic coverage to ensure service continuity. UE first occupies low-priority frequency points. When the priority handover measurement start threshold, the inter-frequency measurement is started. When the measured high-priority frequency level RSRP is higher than the set handover decision threshold, the handover based on frequency priority is triggered. The third is based on service For inter-frequency handover, the NR base station configures a corresponding handover target frequency group for each QCI (QoS Class Identifier). The NR base station will continuously monitor the service status of the terminal. If the service QCI changes, it will trigger a service-based different frequency point group. frequency switching.

The above technical solutions are not combined with the actual perception of the service and the actual signal quality during the handover process. When the network has problems such as high interference and high overlapping coverage, even if the actual signal quality is already very poor, at the same time The user's actual service perception is already poor, and it is impossible to control the user to switch to a cell with better quality in a timely manner. There is a certain disconnect between the handover and service perception, which cannot adapt to the degradation of signal quality and affects the user's network experience.

In order to solve the above technical problems, an embodiment of the present invention proposes a handover control method of a user terminal. During the handover process, the buffered data amount in the BSR (Buffer Status Report, buffer status report) of the user UE is obtained, and according to the location where the data amount is Interval, determine the corresponding handover measurement start threshold, and at the same time, introduce the uplink SINR (Signal to Interference plus Noise Ratio, Signal to Noise Ratio), which is strongly related to user service perception, as an indicator for judging whether to start handover measurement. SINR is also used to indicate the signal The quality index, when the uplink SINR is lower than the handover measurement start judgment threshold, the NR base station controls the UE to start the handover measurement based on service perception, so as to ensure that when the actual signal quality deteriorates and the user network perception deteriorates, it can switch to a higher quality A good cell solves the problem of disconnection between handover control and actual service perception changes or actual signal quality, ensuring a good experience for users.

Hereinafter, the user terminal handover control method proposed by the present invention will be further explained through an exemplary implementation.

In an exemplary embodiment, please refer to FIG. 2, the handover control method of the user terminal includes the following steps:

Step S10, obtaining the buffer status report BSR of the user terminal UE, and determining the amount of data corresponding to the UE according to the BSR;

Step S20, determining the target data volume interval in which the data volume is located, and obtaining a switching measurement start threshold corresponding to the target data volume interval;

Step S30, determining the uplink signal-to-noise ratio SINR of the UE according to the demodulation reference signal DMRS and channel sounding reference signal SRS corresponding to the UE;

Step S40, when the SINR is smaller than the handover measurement start threshold, obtain a measurement report corresponding to the UE, and perform cell handover control according to the measurement report.

In this embodiment, the executor is the NR base station.

The NR base station can obtain the uplink data buffer status report BSR sent by the UE to the scheduler, and extract the data volume corresponding to the UE from the BSR.

In the corresponding relationship between the preset data volume and the preset data volume interval, it is determined that the data volume corresponding to the UE is preset with a corresponding target data volume interval, and each target data volume interval is preset with a corresponding handover measurement start threshold, and the handover The measurement start threshold is a signal-to-noise ratio used to indicate cell handover.

The NR base station continuously monitors the UE's uplink DMRS (Demodulation Reference Signal, demodulation reference signal) and SRS (Sounding Reference Signal, channel sounding reference signal), and analyzes the uplink SINR of the wireless environment where the UE is located, and starts the SINR and handover measurement The threshold is compared to determine whether the wireless signal quality is poor, and the measurement based on service quality is started when the wireless signal quality is poor. Otherwise, the NR base station does not process and continues to monitor the UE's uplink DMRS and SRS signals.

In addition, after the NR base station obtains the corresponding data volume of the UE, it can also determine the service type of the UE according to the target data volume range where the data volume is located. The associated handover measurement start threshold determines the handover measurement start threshold corresponding to the target data volume interval. The target data volume ranges corresponding to different service types are different, and the handover measurement start thresholds associated with different service types are different. The target data volume range is (4, +∞), the target data volume range corresponding to the medium package business is (1,4], and the target data volume range corresponding to the small package business is (0,1], and the unit is MByte, so that The service type is determined by the target data volume interval; in addition, the handover measurement start threshold associated with different service types meets a specific value range, for example, the handover measurement start threshold of the large package service is above 3 (including 3), and the handover measurement start threshold of the medium package service The measurement start threshold is between 0 and 3 (including 0, not including 3), and the switching measurement threshold of the small packet service is a negative value. The above-mentioned business type of the UER is judged according to the amount of data in the UE uplink data buffer status report BSR, According to different service types, different service-aware-based handover measurement startup thresholds are set. In the related technologies of service types, service types are mainly used in high-load expansion scenarios, while the present invention proposes to use the judgment of service types for Cell handover control. Moreover, the present invention proposes for the first time that SINR is used as a judgment condition for handover measurement and used for handover control.

In a specific scenario, the service feature recognition threshold is preset in the base station, the large packet service recognition threshold Data_Thr1, the medium packet service recognition threshold Data_Thr2, the small packet service recognition threshold Data_Thr3, Data_Thr1>4MByte, 1MByte<Data_Thr2<=4MByte, Data_Thr3<= 1MByte, the NR base station compares the acquired data amount Data_BSR with Data_Thr1, Data_Thr2, and Data_Thr3 respectively, and judges the service type of the UE according to the judgment rules of the following example:

Based on different service types, different service quality-based handover measurement start thresholds threshold_s are preset in the base station. Examples of threshold_s value rules and ranges are as follows:

business type threshold_j value range Large package business threshold_s>=3 Subcontracting business 0<=threshold_s<3 Parcel business threshold_s<0

The NR base station continuously detects the uplink DMRS and SRS of the UE, and analyzes the uplink SINR_UE of the wireless environment where the UE is located. After identifying the service type of the UE, it compares the SINR_UE with the threshold_s of the corresponding service type. If the condition "SINR_UE<threshold_s" is met ", then it is determined that the wireless signal quality of the UE is poor at this time, and the handover measurement based on the service quality can be started; otherwise, the base station does not perform any processing, and continues to monitor the UE's uplink DMRS, SRS and other signals.

The target data interval is the first interval, the second interval or the third interval, where the value in the first interval is greater than the value in the second interval, the value in the second interval is greater than the value in the third interval, and the first interval corresponds to The handover measurement start threshold corresponding to the second interval is greater than the handover measurement start threshold corresponding to the second interval, and the handover measurement start threshold corresponding to the second interval is greater than the handover measurement start threshold corresponding to the third interval.

In the technical solution disclosed in this embodiment, first obtain the buffer status report BSR of the user terminal UE, and determine the data volume corresponding to the UE according to the BSR, then determine the target data volume interval where the data volume is located, and obtain the target data volume interval The corresponding handover measurement start threshold, and determine the UE's uplink signal-to-noise ratio SINR according to the UE's corresponding demodulation reference signal DMRS and channel sounding reference signal SRS, and then when the SINR is smaller than the handover measurement start threshold, obtain the UE corresponding measurement report, and according to The measurement report performs cell handover control, wherein the handover measurement start threshold is determined according to the amount of data in the UE's BSR, and the uplink SINR analyzed based on the UE's uplink signal is used as the judgment condition for starting handover measurement. When the SINR is smaller than the handover measurement start threshold , the signal quality is already very poor, and it indicates that the service perception effect of the user is already very poor. At this time, cell handover is performed, so that when the signal quality is already very poor, the UE is handed over to a cell with better quality, which solves the problem that the signal quality is already very poor. When the quality is poor, the UE cannot switch to a cell with better quality.

Based on the above embodiment, in another exemplary implementation, please refer to FIG. 3, the step S40 includes:

Step S41, when the SINR is smaller than the handover measurement start threshold, send measurement control information to the UE, where the UE performs parameter measurement based on the measurement control information when receiving the measurement control information, and obtains said measurement report;

Step S42, receiving the measurement report sent by the UE;

Step S43, performing cell switching control according to the measurement report.

When the base station determines that the SINR is less than the handover measurement start threshold, it sends measurement control information to the UE. The measurement control information includes the target frequency point that needs to be measured by the UE, and the parameter configuration of the A3 event or A4 event that needs to be reported by the UE.

After sending the measurement control information to the UE, the UE measures the cell signal of the currently occupied cell and the target frequency point according to the measurement control information. When the measurement result meets the parameter configuration of the A3 event or A4 event, the UE sends a measurement report to the NR base station (Measurement Report, MR), the base station performs cell handover control according to the measurement report.

After receiving the measurement report, the base station determines the first cell that satisfies the A3 event or the A4 event according to the measurement report, selects a second cell from the first cell according to the preset neighbor cell list, and selects a target cell from the second cell; A handover instruction is sent to the UE, wherein, when the UE receives the handover instruction, it switches from the currently occupied cell to the target cell.

Wherein, in the process of selecting the second cell from the first cell according to the preset neighbor list and selecting the target cell from the second cell, when the first cell is included in the preset neighbor list, the The first cell serves as the second cell, obtains the level reference signal received power RSRP corresponding to the second cell, and selects a target cell from the second cells according to the RSRP.

In a specific scenario, after the NR base station receives the UE's measurement report Measure Report, it analyzes and obtains the cell list List that satisfies the A3 or A4 event, and then the NR base station compares the cells in the List with the pre-configured neighbor cell list List_n, If cell_n in the List exists in List_n at the same time, cell_n can be used as a handover target candidate cell, and the NR base station selects the cell_t with the highest signal level RSRP from cell_n as the handover target cell, and the NR base station further sends a handover message to UE1 The command requires UE1 to switch to cell_t, and UE1 initiates random access on cell_t to complete the handover based on service quality.

In the technical solution disclosed in this embodiment, by sending the measurement control information to the UE, wherein, when the UE receives the measurement control information, it performs parameter measurement based on the measurement control information, obtains a measurement report, and sends the measurement report to the NR base station, so that The NR base station performs cell handover control according to the measurement report, so that the UE can be handed over to a cell with better quality.

In another exemplary embodiment, please refer to FIG. 4, the handover control method of the user terminal includes the following steps:

Step S50, receiving the measurement control information sent by the NR base station, wherein the measurement control information is sent when the NR base station detects that the uplink signal-to-noise ratio SINR of the UE is less than the handover measurement start threshold, and the handover measurement start threshold is determined by The NR base station obtains according to the amount of data corresponding to the UE;

Step S60, performing parameter measurement according to the measurement control information, and obtaining a measurement result;

Step S70, when the measurement result meets the pre-configured A3 event or A4 event, generate a measurement report according to the measurement result, and send the measurement report to the NR base station for the NR base station to use according to the Measurement reports are used for cell handover control.

In this embodiment, the execution subject is a user terminal.

Among them, the measurement control information is sent by the NR base station when it detects that the SINR is less than the handover measurement start threshold. The SINR is obtained by the NR base station according to the DMRS and SRS corresponding to the UE. The data volume corresponding to the UE is obtained by the NR base station according to the BSR of the UE.

Before receiving the measurement control information sent by the NR base station, the UE can also send a buffer status report BSR to the NR base station, so that the NR base station can determine the data volume corresponding to the UE according to the BSR, and determine the target data volume interval where the data volume is located, and Obtain the handover measurement start threshold corresponding to the target data volume interval, determine the UE's uplink signal-to-noise ratio SINR according to the UE's corresponding demodulation reference signal DMRS and channel sounding reference signal SRS, and obtain the UE's corresponding measurement when the SINR is smaller than the handover measurement start threshold report, and perform cell handover control according to the measurement report.

After sending the measurement report to the NR base station, the UE can also receive the handover command returned by the base station according to the measurement report. The handover command includes the target cell, and the UE switches to the target cell according to the handover command to complete the cell handover and achieve high-quality cell switching. purpose of switching.

In the technical solution disclosed in this embodiment, the measurement control information sent by the NR base station is received, wherein the measurement control information is sent when the NR base station detects that the uplink SINR of the UE is less than the handover measurement start threshold , the handover measurement start threshold is obtained by the NR base station according to the amount of data of the UE, performs parameter measurement according to the measurement control information, and obtains a measurement result, when the measurement result meets the pre-configured A3 event or A4 event , generating a measurement report according to the measurement result, and sending the measurement report to the NR base station, so that the NR base station can perform cell switching control according to the measurement report, so that when the signal quality is already very poor, or When the user's actual perception is already very poor, the user terminal can switch to a cell with better quality.

In addition, referring to FIG. 5 , another embodiment of the present invention also proposes a handover control device 100 for a user terminal, the device 100 is an NR base station, and the device 100 includes:

An acquisition module 101, configured to acquire a buffer status report BSR of a user terminal UE, and determine the amount of data corresponding to the UE according to the BSR;

A determining module 102, configured to determine a target data volume interval in which the data volume is located, and obtain a switching measurement start threshold corresponding to the target data volume interval;

A monitoring module 103, configured to determine the uplink signal-to-noise ratio SINR of the UE according to the demodulation reference signal DMRS and the channel sounding reference signal SRS corresponding to the UE;

The control module 104 is configured to obtain a measurement report corresponding to the UE when the SINR is smaller than the handover measurement start threshold, and perform cell handover control according to the measurement report.

In addition, referring to FIG. 6 , another embodiment of the present invention also provides a user terminal switching control device 200, the device 200 is a user terminal, and the device 200 includes:

The receiving module 201 is configured to receive the measurement control information sent by the NR base station, wherein the measurement control information is sent when the NR base station detects that the uplink signal-to-noise ratio SINR of the UE is less than the handover measurement start threshold, the The handover measurement start threshold is obtained by the NR base station according to the amount of data corresponding to the UE;

A measurement module 202, configured to perform parameter measurement according to the measurement control information, and obtain a measurement result;

The sending module 203 is configured to generate a measurement report according to the measurement result when the measurement result meets the preconfigured A3 event or A4 event, and send the measurement report to the NR base station for the NR base station Perform cell handover control according to the measurement report.

It should be noted that, as used herein, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or system comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or system. Without further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present invention can be embodied in the form of a software product in essence or in other words, the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM) as described above. , magnetic disk, optical disk), including several instructions to make the handover control device (NR base station or user terminal) of the user terminal execute the method described in the corresponding embodiment of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (10)

1. A method for controlling handover of a user terminal is applied to a new broadcast NR base station, and comprises the following steps:

obtaining a Buffer Status Report (BSR) of User Equipment (UE), and determining a data volume corresponding to the UE according to the BSR;

determining a target data volume interval where the data volume is located, and acquiring a switching measurement starting threshold corresponding to the target data volume interval;

determining an uplink signal-to-noise ratio (SINR) of the UE according to a demodulation reference signal (DMRS) and a channel Sounding Reference Signal (SRS) corresponding to the UE;

and when the SINR is smaller than the switching measurement starting threshold, acquiring a measurement report corresponding to the UE, and performing cell switching control according to the measurement report.

2. The method as claimed in claim 1, wherein the step of obtaining the measurement report corresponding to the UE and performing cell handover control according to the measurement report comprises:

sending measurement control information to the UE, wherein when the UE receives the measurement control information, parameter measurement is carried out based on the measurement control information to obtain the measurement report;

receiving the measurement report sent by the UE;

and carrying out cell switching control according to the measurement report.

3. The method according to claim 2, wherein the step of performing cell handover control based on the measurement report comprises:

determining a first cell satisfying an A3 event or an A4 event according to the measurement report;

selecting a second cell from the first cell according to a preset adjacent cell list, and selecting a target cell from the second cell;

and sending a switching instruction to the UE, wherein the UE is switched to the target cell from the current occupied cell when receiving the switching instruction.

4. The method as claimed in claim 3, wherein the step of selecting the second cell from the first cell according to a preset neighbor cell list and selecting the target cell from the second cell comprises:

when the preset adjacent cell list comprises the first cell, taking the first cell as the second cell;

and acquiring the level Reference Signal Received Power (RSRP) corresponding to the second cell, and selecting the target cell from the second cell according to the RSRP.

5. The method of claim 1, wherein the target data interval is a first interval, a second interval, or a third interval; the numerical value in the first interval is larger than the numerical value in the second interval, and the numerical value in the second interval is larger than the numerical value in the third interval; the switching measurement starting threshold corresponding to the first interval is larger than the switching measurement starting threshold corresponding to the second interval, and the switching measurement starting threshold corresponding to the second interval is larger than the switching measurement starting threshold corresponding to the third interval.

6. A method for controlling handover of a User Equipment (UE) is applied to the UE, and comprises the following steps:

receiving measurement control information sent by an NR base station, wherein the measurement control information is sent when the NR base station detects that an uplink signal-to-noise ratio SINR of the UE is smaller than a switching measurement starting threshold, and the switching measurement starting threshold is obtained by the NR base station according to a data volume corresponding to the UE;

performing parameter measurement according to the measurement control information to obtain a measurement result;

and when the measurement result meets a preconfigured A3 event or A4 event, generating a measurement report according to the measurement result, and sending the measurement report to the NR base station so that the NR base station performs cell switching control according to the measurement report.

7. The method of claim 1, wherein the step of receiving the measurement control information transmitted by the NR base station is preceded by:

and sending a Buffer Status Report (BSR) to the NR base station so that the NR base station can determine the data volume corresponding to the UE according to the BSR.

8. A handover control apparatus of a user terminal, comprising a memory, a processor, and a handover control program of the user terminal stored on the memory and operable on the processor, wherein:

a step of implementing a handover control method of a user terminal according to any one of claims 1 to 5 when the handover control program of the user terminal is executed by the processor;

alternatively, the handover control program of the user terminal implements the steps of the handover control method of the user terminal according to claim 6 or 7 when executed by the processor.

9. The switching control device of the user terminal is characterized by comprising an acquisition module, a determination module, a monitoring module and a control module, wherein:

the acquisition module is used for acquiring a Buffer Status Report (BSR) of User Equipment (UE) and determining the data volume corresponding to the UE according to the BSR;

the determining module is configured to determine a target data volume interval where the data volume is located, and acquire a handover measurement starting threshold corresponding to the target data volume interval;

the monitoring module is used for determining the uplink signal-to-noise ratio SINR of the UE according to the demodulation reference signal DMRS and the channel sounding reference signal SRS corresponding to the UE;

the control module is configured to, when the SINR is smaller than the handover measurement starting threshold, obtain a measurement report corresponding to the UE, and perform cell handover control according to the measurement report;

or, the switching control device of the user terminal comprises a receiving module, a measuring module and a sending module, wherein:

the receiving module is configured to receive measurement control information sent by the NR base station, where the measurement control information is sent when the NR base station detects that an uplink signal-to-noise ratio SINR of the UE is smaller than a handover measurement starting threshold, and the handover measurement starting threshold is obtained by the NR base station according to a data amount corresponding to the UE;

the measurement module is used for carrying out parameter measurement according to the measurement control information to obtain a measurement result;

the sending module is configured to generate a measurement report according to the measurement result and send the measurement report to the NR base station when the measurement result satisfies a preconfigured A3 event or A4 event, so that the NR base station performs cell handover control according to the measurement report.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a handover control program of a user terminal, which when executed by a processor implements the steps of the handover control method of the user terminal according to any one of claims 1 to 7.

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