CN115708379A - Switching control method and device of user terminal and computer readable storage medium - Google Patents
Switching control method and device of user terminal and computer readable storage medium Download PDFInfo
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- CN115708379A CN115708379A CN202110955891.6A CN202110955891A CN115708379A CN 115708379 A CN115708379 A CN 115708379A CN 202110955891 A CN202110955891 A CN 202110955891A CN 115708379 A CN115708379 A CN 115708379A
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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
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for controlling handover of a user equipment, and a computer-readable storage medium.
Background
In order to continuously provide a good network experience for users in a fifth Generation Mobile Communication technology (5 g) network, a New Radio NR base station needs to control a User Equipment (UE) to switch from a current cell to a cell with better signal quality.
In the related art, when the UE moves to a cell coverage edge, a Reference Signal Receiving Power (RSRP) of a serving cell is weaker, a RSRP of a neighbor cell is stronger, and when the RSRP of the neighbor cell is higher than a certain threshold of the serving cell, the handover based on the coverage is triggered. Since the solution described in the related art only determines whether to switch according to the UE level change, when the UE level is high, but the actual signal quality is poor due to factors such as interference, the UE cannot switch to a cell with better quality.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The present invention is directed to a method, an apparatus, and a computer-readable storage medium for controlling handover of a ue, and aims to achieve the effect of handover to a cell with better quality when the actual signal quality is poor.
In order to achieve the above object, the present invention provides a method for controlling handover of a ue, which is applied to a new broadcast NR base station, and the method for controlling handover of the ue includes:
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.
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, 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.
Optionally, the step of performing cell handover control according to the measurement report includes:
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.
Optionally, the selecting a second cell from the first cell according to a preset neighbor cell list, and selecting a target cell from the second cell includes:
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.
Optionally, 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.
In addition, to achieve the above object, the present invention further provides a method for controlling handover of a UE, which is applied to a UE, and the method for controlling handover of the UE includes:
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.
Optionally, before the step of receiving the measurement control information sent by the NR base station, the method further includes:
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.
In addition, to achieve the above object, the present invention further provides a handover control apparatus of a user terminal, including a memory, a processor, and a handover control program of the user terminal, stored in the memory and operable on the processor, wherein:
a step of implementing any one of the handover control methods applied to the user terminal of the NR base station when the handover control program of the user terminal is executed by the processor;
or, the handover control program of the user terminal implements any of the steps of the handover control method applied to the user terminal of the user terminal when executed by the processor.
In addition, in order to achieve the above object, the present invention further provides a handover control device of a user terminal, where the handover control device of the user terminal includes an obtaining module, a determining module, a monitoring module, and a control module, where:
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 measuring parameters 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.
Further, to achieve the above object, the present invention also provides a computer readable storage medium having 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 as described above.
The invention provides a method, a device and a computer readable storage medium for controlling switching of a user terminal, which are provided by the embodiment of the invention, the method comprises the steps of firstly obtaining a Buffer State Report (BSR) of a user terminal (UE), determining a data volume corresponding to the UE according to the BSR, then determining a target data volume interval in which the data volume is positioned, obtaining 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) corresponding to the UE and a channel Sounding Reference Signal (SRS) corresponding to the UE, further obtaining a measurement report corresponding to the UE when the SINR is smaller than the switching measurement starting threshold, and controlling the switching of a cell according to the measurement report, wherein the switching measurement starting threshold is determined according to the data volume in the BSR of the UE, and the uplink SINR analyzed based on the uplink signal of the UE is used as a judgment condition for starting the switching measurement, when the SINR is smaller than the switching measurement starting threshold, the signal quality is poor, and the service perception effect of the user is poor, and the cell switching is carried out at the time, so that the UE can not be switched to the cell with the poor signal quality.
Drawings
FIG. 1 is a schematic diagram of an apparatus for a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a handover control method of a ue according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a handover control method of a ue according to another embodiment of the present invention;
fig. 4 is a flowchart illustrating a handover control method of a ue according to another embodiment of the present invention;
FIG. 5 is a block diagram of a base station in accordance with an embodiment of the present invention;
fig. 6 is a schematic block diagram of a user terminal according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, fig. 1 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the present invention.
The apparatus shown in fig. 1 may specifically be an NR base station, and the NR base station may include: a processor 1001, such as a CPU, a memory 1003, and a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The memory 1003 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1003 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the base station architecture shown in fig. 1 is not meant to be limiting, and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1003 as a kind of computer storage medium may include therein a handover control program of the user terminal.
In the base station shown in fig. 1, the processor 1001 may be configured to call a handover control program of the user terminal stored in the memory 1003, and perform the following operations:
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.
Further, the processor 1001 may be further configured to call a 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, 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.
Further, the processor 1001 may be further configured to call a handover control program of the user terminal stored in the memory 1005, and perform the following operations:
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.
Further, the processor 1001 may be further configured to call a handover control program of the user terminal stored in the memory 1005, and perform the following operations:
when the preset adjacent cell list comprises the first cell, taking the first cell as the second cell;
and acquiring a level Reference Signal Received Power (RSRP) corresponding to the second cell, and selecting the target cell from the second cell according to the RSRP.
Alternatively, the apparatus shown in fig. 1 is a user terminal, which is 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 a communication bus 1002 is used to enable connective communication between these components. The memory 1003 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1003 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1003 as a kind of computer storage medium may include therein a handover control program of the user terminal.
In the terminal shown in fig. 1, the processor 1001 may be configured to call a handover control program of the user terminal stored in the memory 1003, and perform the following operations:
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.
Further, the processor 1001 may be further configured to call a handover control program of the user terminal stored in the memory 1003, and perform the following operations:
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.
In order to continuously provide a good network experience for users, 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 realize the switching, the related technology mainly comprises three types, the first type is switching based on coverage, when UE moves to a cell coverage edge, the RSRP of a service cell is weaker and stronger, the RSRP of an adjacent cell is stronger and stronger, when the level of the adjacent cell is higher than a certain threshold of the service cell, the switching based on the coverage is triggered, the second type is switching based on frequency priority, for a multi-band same-coverage networking scene, when the frequency points of high priority and low priority are covered, service is carried by the frequency points of high priority, and the frequency points of low priority provide basic coverage to ensure service continuity, the UE firstly occupies the frequency points of low priority, as the RSRP of the occupied cell is higher, when the threshold is started for the switching measurement based on the frequency priority, pilot frequency measurement is started, when the level RSRP of the frequency points of the high priority is higher than a set switching judgment threshold, the switching based on the frequency priority is triggered, the third type is pilot frequency switching based on the service, and when the level RSRP of the high priority is higher than the set switching judgment threshold, the switching judgment threshold is configured for each type of Class Identifier (Class Identifier) in a QCI (Class) base station, the service, the terminal continuously monitors the service state of service, and the service change based on the service, if the service change of the service is triggered.
According to the technical scheme, in the switching process, actual sensing of services and actual signal quality are not combined, when the network has the problems of high interference, high overlapping coverage and the like, even if the actual signal quality is poor, the actual service sensing of a user is poor, the user cannot be controlled to be switched to a cell with better quality in time, certain disjunction exists between the switching and the service sensing, the reduction of the signal quality cannot be adapted, and the network experience of the user is influenced.
In order to solve the above technical problem, an embodiment of the present invention provides a handover control method for a user equipment, where in a handover process, a Buffer data amount in a BSR (Buffer Status Report) of a user UE is obtained, a corresponding handover measurement start threshold is determined according to an interval where the data amount is located, meanwhile, an uplink SINR (Signal to Interference plus Noise Ratio) strongly related to user service sensing is introduced as an index for determining whether to start handover measurement, and the SINR is also an index for indicating Signal quality, when the uplink SINR is lower than a handover measurement start decision threshold, an NR base station controls the UE to start handover measurement based on service sensing, and when actual Signal quality is ensured to be degraded and user network sensing is degraded, a handover control method may be switched to a cell with better quality, so as to solve a problem that handover control and actual service sensing change conditions or actual Signal quality are disconnected, and ensure good experience of a user.
Hereinafter, the handover control method of the ue proposed by the present invention is further explained by exemplary embodiments.
In an exemplary embodiment, referring to fig. 2, the method for controlling handover of a ue includes the following steps:
step S10, obtaining a Buffer Status Report (BSR) of User Equipment (UE), and determining a data volume corresponding to the UE according to the BSR;
step S20, 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;
step S30, 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;
and step S40, 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.
In the present embodiment, the execution subject is an NR base station.
The NR base station may obtain an uplink data buffer status report BSR sent by the UE to the scheduler, and extract a data amount corresponding to the UE from the BSR.
In the corresponding relation 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 starting threshold, wherein the handover measurement starting threshold is a signal-to-noise ratio used for indicating cell handover.
The NR base station analyzes uplink SINR of a wireless environment where the UE is located by continuously monitoring uplink DMRS (Demodulation Reference Signal) and SRS (Sounding Reference Signal) of the UE, compares the SINR with a switching measurement starting threshold to judge whether the quality of a wireless Signal is poor, and starts switching measurement based on service quality when the quality of the wireless Signal is poor, otherwise, the NR base station does not process, and continuously monitors the uplink DMRS and SRS signals of the UE.
In addition, after acquiring the data volume corresponding to the UE, the NR base station may further determine the service type of the UE according to a target data volume interval where the data volume is located, where the service types are divided into a large packet service, a medium packet service, and a small packet service, and determine a handover measurement start threshold corresponding to the target data volume interval according to a handover measurement start threshold associated with the service type, where the target data volume intervals corresponding to different service types are different, and the handover measurement start thresholds associated with different service types are different, for example, the target data volume interval corresponding to the large packet service is (4, + ∞) and the target data volume interval corresponding to the medium packet service is (1,4), the target data volume interval corresponding to the small packet service is (0,1) and the unit is MByte, so that the service type may be determined through the target data volume interval, in addition, the handover measurement start threshold associated with different service types satisfies a specific value range, for example, the handover measurement start threshold of the large packet service is more than 3 (including 0 to 3), and is used for performing a handover measurement on a BSR measurement report based on a primary handover measurement condition, and a BSR measurement report that the service type is determined based on a high traffic load measurement report that the primary handover measurement of the high packet service type.
In a specific scenario, a service characteristic identification threshold, a large packet service identification threshold Data _ Thr1, a medium packet service identification threshold Data _ Thr2, a small packet service identification threshold Data _ Thr3, data _ Thr1>4mbyte,1mbyte Data _ _thr2< =4mbyte, data _thr3< =1mbyte, and an 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 following judgment rules:
based on different service types, different handover measurement starting thresholds threshold _ s based on service quality are preset in a base station, and the value rules and range examples of the threshold _ s are as follows:
| type of service | threshold _ j value range |
| Big packet service | threshold_s>＝3 |
| Middle packet service | 0<＝threshold_s<3 |
| Packet service | threshold_s<0 |
The NR base station continuously detects uplink DMRS and SRS of the UE, analyzes uplink SINR _ UE of a wireless environment where the UE is located, compares the SINR _ UE with threshold _ s corresponding to the service type after identifying the service type of the UE, judges that the wireless signal quality of the UE is poor at the moment if the condition 'SINR _ UE < threshold _ s' is met, and can start measurement based on the service quality, otherwise, the base station does not process and continues to monitor signals of the uplink DMRS, SRS and the like of the UE.
The target data interval is a first interval, a second interval or a third interval, wherein 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, the switching measurement starting threshold corresponding to the first interval is greater than the switching measurement starting threshold corresponding to the second interval, and the switching measurement starting threshold corresponding to the second interval is greater than the switching measurement starting threshold corresponding to the third interval.
In the technical scheme disclosed in this embodiment, a buffer status report BSR of a UE is first obtained, a data volume corresponding to the UE is determined according to the BSR, a target data volume interval in which the data volume is located is then determined, a handover measurement starting threshold corresponding to the target data volume interval is obtained, an uplink signal-to-noise ratio SINR of the UE is determined according to a demodulation reference signal DMRS corresponding to the UE and a channel sounding reference signal SRS corresponding to the UE, and when the SINR is smaller than the handover measurement starting threshold, a measurement report corresponding to the UE is obtained, and cell handover control is performed according to the measurement report, wherein the handover measurement starting threshold is determined according to the data volume in the BSR of the UE, and an uplink SINR analyzed based on an uplink signal of the UE is used as a decision condition for starting handover measurement, and when the SINR is smaller than the handover measurement starting threshold, the signal quality is already poor, and at the service sensing effect of the user is already poor, cell handover is performed at this time, so that the UE is handed over to a cell with better quality when the signal quality is already poor, the problem that the UE cannot be handed over to a cell with better quality is solved.
In another exemplary implementation based on the above embodiment, referring to fig. 3, the step S40 includes:
step S41, when the SINR is smaller than the switching measurement starting threshold, 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;
step S42, receiving the measurement report sent by the UE;
and S43, carrying out cell switching control according to the measurement report.
And when the base station judges that the SINR is smaller than the switching measurement starting threshold, sending measurement control information to the UE, wherein the measurement control information comprises a target frequency point required to be measured by the UE and the parameter configuration of an A3 event or an A4 event required to be reported by the UE.
After sending Measurement control information to the UE, the UE measures cell signals of a currently occupied cell and a target frequency point according to the Measurement control information, and when a Measurement result satisfies parameter configuration of an A3 event or an A4 event, the UE sends a Measurement Report (MR) to an NR base station, and the base station performs cell switching control according to the Measurement Report.
After receiving the measurement report, the base station determines a first cell meeting an A3 event or an A4 event according to the measurement report, selects a second cell from the first cell according to a preset adjacent cell list, and selects a target cell from the second cell; and sending a switching instruction to the UE, wherein the UE is switched to a target cell from the current occupied cell when receiving the switching instruction.
In the process of selecting a second cell from the first cell according to the preset neighbor cell list and selecting a target cell from the second cell, when the preset neighbor cell list includes the first cell, the first cell is used as the second cell, level Reference Signal Received Power (RSRP) corresponding to the second cell is obtained, and the target cell is selected from the second cell according to the RSRP.
In a specific scenario, after receiving a measurement Report Measure Report of the UE, the NR base station parses the measurement Report to obtain a cell List that satisfies an event A3 or A4, then compares a cell in the List with a pre-configured neighbor cell List _ n, if a cell _ n in the List exists in the List _ n at the same time, the cell _ n may serve as a handover target candidate cell, the NR base station selects a cell _ t with a highest signal level RSRP from the cell _ n as a handover target cell, and further sends a handover command to the UE1 to request the UE1 to handover to the cell _ t, and the UE1 initiates random access on the cell _ t to complete handover based on service quality.
In the technical scheme disclosed in this embodiment, measurement control information is sent to the UE, wherein when the UE receives the measurement control information, the UE performs parameter measurement based on the measurement control information to obtain a measurement report, and sends the measurement report to the NR base station, so that the NR base station performs cell switching control according to the measurement report, and thus the UE can be switched to a cell with better quality.
In another exemplary embodiment, referring to fig. 4, the method for controlling handover of a user equipment includes the following steps:
step S50, 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;
step S60, performing parameter measurement according to the measurement control information to obtain a measurement result;
and step S70, when the measurement result meets a 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.
In this embodiment, the execution subject is a user terminal.
The measurement control information is sent when the NR base station detects that SINR is smaller than a switching measurement starting threshold, the SINR is obtained by the NR base station according to DMRS and SRS corresponding to the UE, the switching measurement starting threshold is obtained by the NR base station according to a target data volume interval where the data volume corresponding to the UE is located, and the data volume corresponding to the UE is obtained by the NR base station according to the BSR of the UE.
Before receiving measurement control information sent by the NR base station, the UE may also send a buffer status report BSR to the NR base station, so that the NR base station determines a data volume corresponding to the UE according to the BSR, determines a target data volume interval in which the data volume is located, obtains a handover measurement start threshold corresponding to the target data volume interval, determines 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, obtains a measurement report corresponding to the UE when the SINR is less than the handover measurement start threshold, and performs cell handover control according to the measurement report.
After the measurement report is sent to the NR base station, the UE may further receive a handover instruction returned by the base station according to the measurement report, where the handover instruction includes a target cell, and the UE switches to the target cell according to the handover instruction to complete cell handover and achieve the purpose of handover to a high-quality cell.
In the technical scheme disclosed in this embodiment, measurement control information sent by an NR base station is received, 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 less than a handover measurement starting threshold, the handover measurement starting threshold is obtained by the NR base station according to a data amount of the UE, parameter measurement is performed according to the measurement control information to obtain a measurement result, and when the measurement result satisfies a preconfigured A3 event or A4 event, a measurement report is generated according to the measurement result and sent to the NR base station, so that the NR base station performs cell handover control according to the measurement report, so that a user terminal can be handed over to a cell with better quality when signal quality is already poor or when actual perception of a user is already poor.
In addition, referring to fig. 5, another embodiment of the present invention further provides a handover control apparatus 100 for a ue, where the apparatus 100 is an NR base station, and the apparatus 100 includes:
an obtaining module 101, configured to obtain a buffer status report BSR of a user equipment UE, and determine a data amount corresponding to the UE according to the BSR;
a determining module 102, configured to determine a target data volume interval where the data volume is located, and obtain a handover measurement starting threshold corresponding to the target data volume interval;
a monitoring module 103, configured to determine an uplink signal-to-noise ratio SINR of the UE according to a demodulation reference signal DMRS and a channel sounding reference signal SRS that correspond to the UE;
a control module 104, configured to obtain a measurement report corresponding to the UE when the SINR is smaller than the handover measurement starting threshold, and perform cell handover control according to the measurement report.
In addition, referring to fig. 6, another embodiment of the present invention further provides a handover control apparatus 200 of a ue, where the apparatus 200 is a ue, and the apparatus 200 includes:
a receiving module 201, 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 less 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 202 is configured to perform parameter measurement according to the measurement control information to obtain a measurement result;
a sending module 203, configured to generate a measurement report according to the measurement result when the measurement result meets a preconfigured A3 event or a preconfigured A4 event, and send the measurement report to the NR base station, so that the NR base station performs cell handover control according to the measurement report.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present invention or portions thereof contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above and includes several instructions for enabling a handover control device (NR base station or user terminal) of the user terminal to execute the method according to the corresponding embodiment of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
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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| CN202110955891.6A CN115708379A (en) | 2021-08-19 | 2021-08-19 | Switching control method and device of user terminal and computer readable storage medium |
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| CN202110955891.6A CN115708379A (en) | 2021-08-19 | 2021-08-19 | Switching control method and device of user terminal and computer readable storage medium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116489703A (en) * | 2023-06-21 | 2023-07-25 | 中国电信股份有限公司 | Sensing node determining method, sensing node control method and related equipment |
| CN116744386A (en) * | 2023-08-11 | 2023-09-12 | 上海移芯通信科技股份有限公司 | Method, device and medium for rapidly switching cells by Internet of things terminal |
| CN116801364A (en) * | 2023-08-22 | 2023-09-22 | Tcl通讯科技（成都）有限公司 | Cell measurement method, device, storage medium and terminal |
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2021
- 2021-08-19 CN CN202110955891.6A patent/CN115708379A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116489703A (en) * | 2023-06-21 | 2023-07-25 | 中国电信股份有限公司 | Sensing node determining method, sensing node control method and related equipment |
| CN116489703B (en) * | 2023-06-21 | 2023-09-29 | 中国电信股份有限公司 | Sensing node determining method, sensing node control method and related equipment |
| CN116744386A (en) * | 2023-08-11 | 2023-09-12 | 上海移芯通信科技股份有限公司 | Method, device and medium for rapidly switching cells by Internet of things terminal |
| CN116744386B (en) * | 2023-08-11 | 2023-11-10 | 上海移芯通信科技股份有限公司 | Method, device and medium for rapidly switching cells by Internet of things terminal |
| CN116801364A (en) * | 2023-08-22 | 2023-09-22 | Tcl通讯科技（成都）有限公司 | Cell measurement method, device, storage medium and terminal |
| CN116801364B (en) * | 2023-08-22 | 2023-12-15 | Tcl通讯科技（成都）有限公司 | Cell measurement method, device, storage medium and terminal |
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