CN111132245B - Network switching method, device, system, terminal and storage medium - Google Patents
Network switching method, device, system, terminal and storage medium Download PDFInfo
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- CN111132245B CN111132245B CN201811291437.XA CN201811291437A CN111132245B CN 111132245 B CN111132245 B CN 111132245B CN 201811291437 A CN201811291437 A CN 201811291437A CN 111132245 B CN111132245 B CN 111132245B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/38—Reselection control by fixed network equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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Abstract
The embodiment of the invention discloses a network switching method, a device, a system, a terminal and a storage medium, wherein the method comprises the following steps: the terminal receives a switching instruction issued by a network side; the terminal responds to the switching instruction and determines a special beam meeting a preset first condition from a last measurement report as a target switching beam; and executing the switching instruction, and switching to the target switching beam.
Description
Technical Field
Embodiments of the present invention relate to communications technologies, and in particular, to a network switching method, an apparatus, a system, a terminal, and a storage medium.
Background
With the fifth generation mobile communication technology (5G, 5)thGeneration) has largely applied Massive antenna technology (Massive MIMO, Multiple-Input Multiple-Output) and beam forming technology (Beamforming), and the coverage mode of radio signals is changed from the traditional almost omnidirectional fixed direction coverage to movable energy concentration beams. The base station and the terminal can track the beam to the movement of the user through a series of operations, and the beam moves along with the movement of the user.
However, since 5G employs a large amount of high-band spectrum, the radio signal is severely attenuated and is easily blocked by small obstacles, so that a specific Beam (Beam) causes a relatively large communication performance to fluctuate sharply in a short time. In addition, in order to track the movement of the terminal, the network side needs to continuously report the state of the terminal, and if the report delay or report error occurs, the moving accuracy of the beam is affected. Therefore, the moving beam cannot track the terminal in time in some cases, which may cause a delay or interruption of communication. Especially, after the 5G introduces high-frequency millimeter waves, the cell coverage is smaller, the base stations are deployed more frequently, and when the switching and the like are more frequent, the mobile tracking beam is adopted, so that misjudgment may occur.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a network switching method and apparatus, a system, a terminal, and a storage medium to solve at least one problem in the prior art.
The technical scheme of the embodiment of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a network handover method, where the method includes:
the terminal receives a switching instruction issued by a network side;
the terminal responds to the switching instruction and determines a special beam meeting a preset first condition from a last measurement report as a target switching beam;
and executing the switching instruction, and switching to the target switching beam.
In a second aspect, an embodiment of the present invention provides a method for allocating dedicated handover beams, where the method includes:
the network side allocates a special beam set to the terminal and informs the terminal through downlink signaling, wherein the special beams in the special beam set are used for preparing measurement before switching.
In a third aspect, an embodiment of the present invention provides a network switching method, where the method includes:
a network side receives a measurement report sent by a terminal on a special beam, wherein the measurement report carries a signal measurement value of a beam of a serving cell and a signal measurement value of a beam of a target cell;
and when the network side determines that the signal measurement value of the beam of the serving cell and the signal measurement value of the beam of the target cell meet a preset second condition, the network side sends a switching signaling to a terminal on the special beam.
In a fourth aspect, an embodiment of the present invention provides a network switching apparatus, where the apparatus includes:
the first receiving unit is configured to receive a switching instruction issued by a network side;
a first determining unit configured to determine, in response to the handover instruction, a dedicated beam satisfying a preset first condition from a last measurement report as a target handover beam;
and the execution unit is configured to execute the switching instruction and switch to the target switching beam.
In a fifth aspect, an embodiment of the present invention provides an apparatus for allocating dedicated handover beams, where the apparatus includes:
an allocation unit configured to allocate a dedicated set of beams to a terminal;
and a notification unit configured to notify the terminal through downlink signaling, wherein a dedicated beam in the dedicated beam set is used for preparation measurement before handover.
In a sixth aspect, an embodiment of the present invention provides a network switching apparatus, where the apparatus includes:
a third receiving unit, configured to receive, on a dedicated beam, a measurement report sent by a terminal, where the measurement report carries a signal measurement value of a beam of a serving cell and a signal measurement value of a beam of a target cell;
and the transmitting unit is configured to send a handover signaling to the terminal on the dedicated beam by the network side when it is determined that the signal measurement value of the beam of the serving cell and the signal measurement value of the beam of the target cell satisfy a preset second condition.
In a seventh aspect, an embodiment of the present invention provides a terminal, including a memory and a processor, where the memory stores a computer program that is executable on the processor, and the processor implements the steps in the network handover method when executing the program.
In an eighth aspect, an embodiment of the present invention provides a network-side handover apparatus, including a memory and a processor, where the memory stores a computer program that is executable on the processor, and the processor implements the method for allocating dedicated handover beams or the steps in the network handover method when executing the program.
In a ninth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored, and the computer program is configured to implement the steps in the network handover method when executed.
The embodiment of the invention provides a network switching method, a device, a system, a terminal and a storage medium, comprising the following steps: the terminal receives a switching instruction issued by a network side; the terminal responds to the switching instruction and determines a special beam meeting a preset first condition from a last measurement report as a target switching beam; and executing the switching instruction, and switching to the target switching beam. Therefore, the special directional fixed beam is used as the switching measurement, so that the switching measurement based on beam forming in 5G is more accurate and stable.
Drawings
FIG. 1A is a schematic diagram of a 5G large-scale antenna and a beam forming principle;
fig. 1B is a schematic diagram of a 5G large-scale antenna and beamforming application scenario;
fig. 1C is a schematic diagram of a series of arithmetic units involved in the beamforming process;
FIG. 1D is a schematic view of a superimposed beam;
FIG. 1E is a schematic view of a measurement model;
FIG. 1F is a schematic diagram of a 5G large-scale antenna and a signal measurement and evaluation process model during beamforming;
fig. 1G is a schematic diagram when no dedicated handover beam is allocated;
fig. 1H is a diagram illustrating the allocation of dedicated handover beams;
fig. 2A is a schematic diagram of an implementation flow of a network switching method according to an embodiment of the present invention;
fig. 2B is a schematic flow chart illustrating an implementation of another network handover method according to an embodiment of the present invention;
fig. 2C is a schematic diagram illustrating an implementation flow of another network handover method according to an embodiment of the present invention;
fig. 3A is a schematic flow chart illustrating an implementation of a method for allocating dedicated handover beams according to an embodiment of the present invention;
fig. 3B is a schematic flow chart illustrating an implementation of a method for allocating dedicated handover beams according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an implementation flow of another network handover method according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating an implementation flow of another network handover method according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating an implementation flow of another network handover method according to an embodiment of the present invention;
fig. 7A is a schematic diagram illustrating an application of a network handover method according to an embodiment of the present invention;
fig. 7B is a schematic diagram illustrating coverage of a cell switching beam configuration set according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a configuration of a network switching apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an apparatus for allocating dedicated handover beams according to an embodiment of the present invention;
fig. 10 is a schematic diagram illustrating a structure of a network switching apparatus according to another embodiment of the present invention;
fig. 11 is a schematic diagram of a hardware entity of a network-side switching device according to an embodiment of the present invention.
Detailed Description
With the fifth generation mobile communication technology (5G, 5)thGeneration) has largely applied Massive antenna technology (Massive MIMO, Multiple-Input Multiple-Output) and beam forming technology (Beamforming), as shown in fig. 1A, the coverage of radio signals is changed from the traditional almost omnidirectional fixed direction to a movable energy-concentrated beam, as shown in fig. 1B, and the base station and the terminal can track the beam to the user's movement through a series of operations, and move along with the user's movement.
However, since 5G employs a large amount of high-band spectrum, the radio signal is severely attenuated and is easily blocked by small obstacles, so that a specific Beam causes a large communication performance to fluctuate sharply in a short time.
In order to track the movement of the terminal, the network side needs to continuously report the state of the terminal, and if the report delay or report error occurs, the moving accuracy of the beam is affected. As shown in fig. 1C, a series of operation units involved in the beamforming process are shown, and through evaluation and calculation, the signal weight of each antenna is obtained, and finally, a beam is superimposed as shown in fig. 1D. Therefore, the moving beam cannot track the terminal in time in some cases, which may cause a delay or interruption of communication.
Especially, after the 5G introduces high-frequency millimeter waves, the cell coverage is smaller, the base stations are deployed more frequently, and when the switching and the like are more frequent, the mobile tracking beam is adopted, so that misjudgment may occur.
In order to solve the stability and accuracy of the handover when Beamforming is adopted at the edges of a plurality of cells, the embodiment of the invention provides a method based on a special directional fixed beam as a handover measurement basis, so that the handover measurement based on Beamforming in 5G is more accurate.
Considering that the signal measurement and evaluation flow model is generally shown in fig. 1E, after the signal strength (RSRP) measured by the bottom Layer of the terminal is filtered by the first Layer (Layer1) and the third Layer (Layer3), the filtered RSRP is compared with the threshold of handover, and if a certain threshold condition is exceeded, the terminal may handover to another cell, which is a 4G procedure.
In the embodiment of the present invention, 5G adds a new dimension, called Beam (Beam), and two important selection modules, as compared to 4G, as shown in fig. 1F, the Beam selection module (Beam association/selection) is used for downlink Beam selection to perform conventional signal measurement such as signal strength measurement (RSRP), signal quality measurement (RSRQ), and the like. A Beam selection for reporting module (Beam selection) is used to evaluate the downlink channel Quality cqi (channel Quality indicator), RI (rank indication); and a beam selection module for reporting uplink after a Precoding Matrix Indicator (PMI).
That is to say, great innovation and modification are made on the measurement and switching module in 5G, wherein Beam selection is a very critical functional module, and how to select the most suitable Beam for measurement and communication in a specific scene greatly affects the performance reliability and stability of the 5G product.
In some embodiments, the third generation mobile communication technology (3G, 3)rdGeneration), such as "candidate beam threshold rsrp-Range" in the code below, is determined by a simple signal strength threshold which beams are selected as the currently used beams. However, such a disadvantage is that the signal will change rapidly when the terminal moves, which makes it easy to jitter back and forth, thereby affecting the subsequent measurement and the switching thereof.
ControlResourceSetId
OPTIONAL,--Need S
--Search space to use for BFR RAR.If the field is absent,the UE uses the initial Serach Space(SearchSpaceId＝0).
recoverySearchSpaceId
SearchSpaceId
OPTIONAL,
--Need S
In the embodiment of the present invention, as shown in fig. 1G, fig. 1G represents a schematic diagram when a dedicated Beam (Handover Beam) is not allocated, and as shown in fig. 1H, fig. 1H represents a schematic diagram when a dedicated Beam (Handover Beam) is allocated, so that, intuitively, allocation of the Handover Beam can make signal coverage of a terminal at a network edge more seamless, and the terminal purposefully measures the corresponding Beam in advance, thereby avoiding a time delay caused by temporarily searching the Beam, and also avoiding a measurement error caused by untimely movement of the Beam in the direction of the Beam.
The technical solution of the present invention is further elaborated below with reference to the drawings and the specific embodiments.
Example one
The embodiment of the invention provides a network switching method, which is applied to a terminal, wherein the functions realized by the method can be realized by calling a program code through a processor in the terminal, and the program code can be saved in a computer storage medium.
Fig. 2A is a schematic diagram of an implementation flow of a network switching method according to an embodiment of the present invention, and as shown in fig. 2A, the method includes:
step S101, a terminal receives a switching instruction issued by a network side;
here, the method provided by the embodiment is executed by a terminal, and the terminal may be a mobile device such as a mobile phone and a tablet computer.
Step S102, the terminal responds to the switching instruction and determines a special beam meeting a preset first condition from a latest measurement report as a target switching beam;
here, the Beam (Beam) is divided into a dedicated Beam and a normal Beam (other beams), the normal Beam needs to be measured each time, and the dedicated Beam may not be measured if an unmeasured condition is satisfied. When an operator deploys a network, each cell and a target cell of an opposite terminal adopt wide beams (dedicated beams) in a relatively fixed direction to perform certain overlapping coverage, the pointing direction and the width of the beams are ensured, no blind area is left, a unique address (ID) structure of the cell where the beams are located is configured to a network side, and the network side allocates a specific dedicated beam set to a terminal. The network side will inform the terminal of the parameter configuration of the special Beam sets through broadcasting or special signaling regularly, and the terminal can read the network configuration messages of the current cell (also called serving cell) and the target cell. When the terminal is located at the edge of the network coverage, signals of the dedicated Beam sets of the current cell and the target cell need to be measured, the signals include but are not limited to signal strength (RSRP) and signal quality (RSRQ), a measurement report is sent to the network side on the dedicated Beam, and a receiving terminal at the network side sends the measurement report on the dedicated Beam.
The measurement report is that the results of the terminal performing unified measurement on the dedicated Beam address (Beam ID) sets of the serving cell and the possible target cell can be sorted according to ascending and descending, and the measurement results, the Beam highest value and the ID of the target cell, and the Beam highest value and the ID of the serving cell are reported to the network in a measurement report mode.
Step S103 executes the handover command to handover to the target handover beam.
Here, the target Handover Beam, also called Handover Beam, belongs to a dedicated Beam.
In other embodiments, the determining, from the last measurement report, a beam that satisfies a first condition as a target handover beam includes:
in a first mode, the terminal determines one of the special beams with the signal measurement value greater than a first threshold value in the last measurement report as a target handover beam;
here, the signal measurement value includes signal strength (RSRP) and/or signal quality (RSRQ), and any one of the dedicated beams having the signal measurement value greater than the first threshold is selected as the target handover beam in the measurement report. For example, there are 3 beams with signal measurement values greater than the first threshold, and the 1 st or 2 nd or 3 rd beam may be selected from the 3 beams as the target handover beam, that is, one of the dedicated beams with signal measurement values greater than the first threshold in the last measurement report is determined as the target handover beam from the terminal.
In a second mode, the terminal determines the dedicated beam with the largest signal measurement value in the last measurement report as the target handover beam.
Here, the Beam with the highest value of the dedicated Beam (the strongest Beam signal) of the target cell in the measurement report is used as the target handover Beam.
Example two
Fig. 2B is a schematic diagram of an implementation flow of another network handover method according to an embodiment of the present invention, as shown in fig. 2B, the method includes:
step S111, the terminal receives a switching instruction issued by the network side;
step S112, the terminal responds to the switching instruction, and determines a special beam meeting a preset first condition from a latest measurement report as a target switching beam;
step S113, executing the switching instruction, and switching to the target switching beam;
step S114, after the terminal is successfully switched to the target switching beam, measuring other beams except the special beam in the serving cell, wherein the serving cell is a cell to which the target switching beam belongs;
here, the Beam (Beam) is divided into a dedicated Beam and a normal Beam (other beams), the normal Beam needs to be measured each time, and the dedicated Beam may not be measured if an unmeasured condition is satisfied. The measurement of the beams other than the dedicated beam in the serving cell refers to a normal beam.
Step S115, determining a signal strength value of the serving cell according to the signal measurement values of other beams in the serving cell;
here, the signal measurement value includes a signal strength (RSRP) and a signal quality (RSRQ).
Step S116, if the signal strength value of the serving cell is greater than or equal to the second threshold, the terminal stops measuring the dedicated beam in the serving cell from the next measurement period, and continues to measure the other beams.
Here, the second threshold is set according to actual conditions; and if the signal strength value of the serving cell is greater than or equal to the second threshold value, namely the terminal is in the core coverage area of the network at the moment, the terminal does not need to prepare any action related to handover measurement, and the terminal stops measuring the dedicated beam in the serving cell from the next measurement period, but continues measuring the other beams (normal beams).
EXAMPLE III
Fig. 2C is a schematic diagram of an implementation flow of another network handover method according to an embodiment of the present invention, as shown in fig. 2C, the method includes:
step S121, the terminal receives a switching instruction issued by the network side;
step S122, the terminal responds to the switching instruction, and determines a special beam meeting a preset first condition from a last measurement report as a target switching beam;
step S123, executing the switching instruction, and switching to the target switching beam;
step S124, after the terminal is successfully switched to the target switching beam, measuring other beams in the serving cell except for the dedicated beam, where the serving cell is a cell to which the target switching beam belongs;
step S125, determining a signal strength value of the serving cell according to the signal measurement values of other beams in the serving cell;
step S126, if the signal measurement value of the serving cell is smaller than the corresponding second threshold, the terminal measures the dedicated beam of the serving cell and the dedicated beam of the target cell;
here, the second threshold is set according to actual conditions; and the beam is divided into a special beam and a common beam, if the signal strength value of the serving cell is smaller than the corresponding second threshold value, the terminal is indicated to be located at the coverage edge of the network soon, and measurement preparation is needed, and the terminal measures the special beam of the serving cell and the special beam of the target cell.
Step S127, the terminal determines a first dedicated beam in the serving cell whose signal measurement value satisfies a second condition and a second dedicated beam in the target cell whose signal measurement value satisfies a third condition;
here, the serving cell is a cell to which the target handover beam belongs, and the second condition and the third condition may be set according to an actual situation, and may also be similar to the first condition.
Step S128, the terminal forms a measurement report according to the identification and the signal measurement value of the first special beam and the identification and the signal measurement value of the second special beam;
here, the identification of the Beam includes, but is not limited to, a Beam address (Beam ID) which has a correspondence with the signal measurement value.
Step S129, the terminal reports the measurement report to the network side on a dedicated beam.
In other embodiments, the method further comprises: the terminal receives a switching beam identification list issued by a network side;
the terminal determines the beam identifier of the special beam of the serving cell and the beam identifier of the special beam of the target cell according to the switching beam identifier list;
storing a beam identification of the dedicated beam of the serving cell and a beam identification of the dedicated beam of the target cell;
correspondingly, the terminal measuring the dedicated beam of the serving cell and the dedicated beam of the target cell includes: measuring the dedicated beam of the serving cell according to the beam identity of the dedicated beam of the serving cell, and measuring the dedicated beam of the target cell according to the beam identity of the dedicated beam of the target cell.
Here, the handover beam identification list includes a beam identification of a dedicated beam of a serving cell and a beam identification of a dedicated beam of a target cell, and the dedicated beam of the cell can be measured through the beam identifications.
In other embodiments, the method further comprises: reading the beam identifier of the dedicated beam of each cell in the switching beam identifier list;
measuring each special beam according to the beam identifier of the special beam of each cell to obtain a signal measurement value of each special beam;
correspondingly, the determining, by the terminal, a first beam in the serving cell and a second beam in the target cell, where the signal measurement value satisfies a second condition, includes:
sorting the special beams of the service cell according to the signal measurement value to obtain a first special beam meeting a second condition;
and sequencing the special beams of the target cell according to the signal measurement value to obtain a second special beam meeting a third condition.
Here, the handover Beam identification list includes Beam identifications of the dedicated beams of each cell, where the Beam identifications include but are not limited to a Beam address (Beam ID), the Beam address and the signal measurement value have a corresponding relationship, the serving cell and the target cell of each dedicated Beam may be measured by the Beam identification of the dedicated Beam of each cell to obtain the signal measurement value of the serving cell and the target cell of each dedicated Beam, and the signal measurement values of the dedicated beams of the serving cell and the target cell may be sorted up and down to obtain a first dedicated Beam satisfying the second condition and a second dedicated Beam satisfying the third condition.
Example four
The embodiment of the invention provides a method for allocating dedicated switching beams, which is applied to a network side switching device, wherein the functions realized by the method can be realized by calling a program code through a processor in the network side switching device, and the program code can be saved in a computer storage medium.
An embodiment of the present invention provides a schematic implementation flow diagram of a method for allocating dedicated handover beams, as shown in fig. 3A, the method includes:
step S201, a network side allocates a special beam set to a terminal;
here, the dedicated beams in the dedicated beam set are used for preparation measurement before handover, and the signal radiation directions of the dedicated beams do not follow the movement of the terminal.
Step S202, the network side informs the terminal through the downlink signaling.
Here, the signaling includes handover signaling, and Beam identifications included in the signaling include, but are not limited to, Beam IDs, corresponding signal strengths (RSRPs) and signal qualities (RSRQs).
EXAMPLE five
The embodiment of the invention provides a network switching method, which is applied to network side switching equipment, wherein the functions realized by the method can be realized by calling a program code through a processor in the network side switching equipment, and the program code can be saved in a computer storage medium.
Fig. 3B is a schematic flow chart of an implementation of a method for allocating dedicated handover beams, as shown in fig. 3B, the method includes:
step S301, a network side receives a measurement report sent by a terminal on a special beam, wherein the measurement report carries a signal measurement value of a beam of a serving cell and a signal measurement value of a beam of a target cell;
here, the signal measurement value includes signal strength (RSRP) and signal quality (RSRQ), and the Beam used for the dedicated Beam may be the best Beam of the Handover Beam signal in the present cell.
Step S301, when the network side determines that the signal measurement value of the beam of the serving cell and the signal measurement value of the beam of the target cell satisfy a preset second condition, the network side sends a handover signaling to a terminal on the dedicated beam.
Here, the second condition may be set according to actual conditions, and may be similar to the first condition.
EXAMPLE six
Based on the foregoing embodiment, a schematic flow chart of an implementation of a network handover method according to another embodiment of the present invention is shown in fig. 4, where the method includes:
step S401, a network side allocates a specific special beam set to a terminal;
here, the Beam is divided into a dedicated Beam (Handover Beam) and a general Beam (Beam), the dedicated Beam (Beam) means that a signal radiation direction of the Beam is relatively fixed without tracking movement with movement of the terminal, and the dedicated Beam (Beam) includes but is not limited to a Handover Beam (Handover Beam).
When an operator deploys a network, each cell and a target cell of an opposite end adopt wide beams (special beams Beam) in relatively fixed directions to perform certain overlapping coverage, the pointing direction and the width of the beams are ensured, no blind area is left, a unique address (ID) structure of the cell where the beams are located is configured to a network side, and the network side allocates a specific special Beam set to a terminal.
Step S402, the network side informs the special beam set to the terminal through the downlink signaling;
here, the network side periodically informs the terminal of the parameter configuration of the dedicated Beam sets through broadcasting or dedicated signaling, so that the terminal can read the network configuration messages of the current cell (also called serving cell) and the target cell.
Step S403, the network side receiving terminal sends a measurement report on the special beam;
here, when the terminal is located at the edge of the network coverage, signals of the dedicated Beam sets of the current cell and the target cell, including but not limited to signal strength (RSRP) and signal quality (RSRQ), need to be measured, and a measurement report is sent to the network side on the dedicated Beam, and a network side receiving terminal sends the measurement report on the dedicated Beam.
Step S404, the network side determines the magnitude relation between the signal measurement value and the switching threshold value according to the measurement report;
here, the measurement report is that the result of the terminal performing unified measurement on the Handover Beam address (Handover Beam ID) sets of the serving cell and a possible target cell may be sorted according to ascending and descending, and the maximum value and the ID of the Handover Beam of the target cell and the maximum value and the ID of the Handover Beam of the serving cell are reported to the network by using a measurement report, and the Beam used in the reporting may be the Beam with the best Handover Beam signal of the serving cell.
Step S405, if the signal measurement value is larger than the switching threshold value, a switching signal is sent to the terminal on the wave beam of the received measurement report;
here, the handover threshold is determined according to actual conditions, for example, the handover threshold of the network is that the target cell must be stronger than the RSRP of the current cell by 5dB and the RSRQ by 3dB, and if the signal measurement value at this time is greater than the handover threshold, the handover signaling is sent to the terminal on the Beam of the received measurement report.
Step S406, the network side receives the feedback that the terminal sends the switch to the target cell.
Here, the terminal switches to the target cell, and feeds back the executed switching instruction to the network side.
EXAMPLE seven
Based on the foregoing embodiment, an embodiment of the present invention provides a schematic implementation flow diagram of another network handover method, as shown in fig. 5, where the method includes:
step S501, the terminal receives the network issued signaling;
here, the signaling includes Handover Beam (Handover Beam) signaling that includes a Beam ID including, but not limited to, a Beam ID that may correspond to a signal strength (RSRP) and a signal quality (RSRQ) of a Beam.
Here, the Handover Beam (Handover Beam) includes beams of a current cell (also called a serving cell) and a target cell.
Step S502, the terminal measures that the signal intensity or/and quality of the serving cell is lower than a certain threshold value, and obtains the beam signal corresponding to the stored beam address;
step S503, the beam address sets of the service cell and the target cell are measured in a unified way;
here, it is mainly performed by a measurement module of the terminal, and the signal strength (RSRP) and the signal quality (RSRQ) of the Beam may be measured in consideration that the Beam ID may correspond to the signal strength (RSRP) and the signal quality (RSRQ) of the Beam.
Step S504, sequencing the measurement results;
here, the sorting may be ascending and descending sorting, resulting in a sorting result.
Step S505, reporting the highest value of the sequencing results of the service cell and the target cell and the ID thereof to the network in a measurement report mode;
here, the maximum value and ID of the Handover Beam of the target cell, the maximum value and ID of the Handover Beam of the serving cell are reported to the network in a measurement report manner, and the Beam used in the reporting may be the Beam with the best Handover Beam signal of the serving cell.
Step S506, if the terminal receives a switching instruction issued by the network, executing the switching instruction;
here, after receiving a Handover instruction issued by the network, the terminal performs Handover to the target Handover Beam by using the Handover Beam ID with the strongest target cell measured in the last measurement report as the preferred Beam of the Handover target cell.
Step S507, the terminal measures all other beams except the switched beam to acquire the signal intensity of the new cell;
here, after the Handover to the target Handover Beam is successful, all Beam (normal Beam) measurements except the Handover Beam are performed, and the signal strength of the new cell is acquired.
Step S508, when the signal strength or/and quality of the new cell is greater than a certain threshold, the dedicated beam is stopped from being measured.
Here, the measurement of the Handover Beam (Handover Beam) is stopped when the signal strength or/and quality of the new cell is greater than a certain threshold.
Example eight
An embodiment of the present invention provides a schematic implementation flow diagram of another network handover method, as shown in fig. 6, the method includes:
step S601, the terminal reads the network configuration message of the current cell;
when an operator deploys a network, each cell and a target cell of an opposite end adopt wide beams in a relatively fixed direction to carry out certain overlapping coverage, the pointing direction and the width of the beams are ensured, and no blind area is left. And configures a unique address (ID) structure of the cell where these beams are located to the network side. And the network side will inform the terminal of these parameter configurations through broadcasting or dedicated signaling regularly, the terminal can read the network configuration message of the current cell.
Step S602, the terminal obtains the beam addresses to be measured of the current service cell and the possible future target cell in the configuration information;
step S603, the terminal judges whether the signal quality and the signal strength of the serving cell are greater than a set threshold value;
here, if the signal quality and the signal strength of the serving cell are greater than the set threshold, that is, the terminal is in the core coverage area of the network at this time, and there is no need to prepare any action related to handover measurement, step S604 is executed; if the signal quality and the signal strength of the serving cell are not greater than the set threshold, it indicates that the terminal is already in the coverage edge of the network, and needs to perform measurement in preparation for performing step S605.
Step S604, the terminal does not need to obtain the wave beam in the configuration information for measurement;
step S605, the terminal acquires the wave beam in the configuration information for measurement;
here, the terminal performs unified measurement on the acquired Handover Beam address (Handover Beam ID) sets of the serving cell and the possible target cell.
Step S606, the terminal respectively sequences the beam intensity measured by the serving cell and the candidate handover target cell;
here, the results of the terminal performing unified measurement on the Handover Beam address (Handover Beam ID) sets of the serving cell and the possible target cells may be sorted according to ascending and descending, and the measured Handover Beam highest value and ID of the target cell, the Handover Beam highest value and ID of the serving cell are reported to the network in a measurement report manner, and the Beam adopted in the reporting may be the Beam with the best Handover Beam signal of the serving cell;
step S607, the network side judges whether the difference value of the signal quality of the service cell and the target cell is larger than the threshold of switching to the target cell;
here, if the difference in signal quality of the serving cell and the target cell is not greater than the threshold for handover to the target cell, step S608 is performed; if the difference value of the signal quality of the serving cell and the target cell is greater than the threshold for switching to the target cell, executing step S609;
step S608, the terminal waits for a certain time interval and measures the beam in the switching beam set again;
step S609, the network side interrupts the data communication of the switching wave beam of the service cell and sends a switching signaling through the current optimal switching wave beam;
here, the currently optimal Handover Beam is a Beam corresponding to the maximum value of the Handover Beam of the serving cell and the ID thereof;
step S610, switching to the optimal switching wave beam of the target cell, and sending a switching completion message to the network by the terminal on the optimal switching wave beam;
here, the optimal handover Beam of the target cell is a Beam corresponding to the Hanover Beam peak and the ID of the target cell.
Step S611, completing the handover, and receiving the beam of other non-handover beam in the new serving cell to recover the user data service.
Example nine
Based on the foregoing embodiments, an embodiment of the present invention provides an application of a network switching method, and fig. 7A is a schematic diagram of an application of a network switching method according to an embodiment of the present invention, as shown in fig. 7A, the method includes:
step S701, a network side informs a terminal of the beam parameter configuration of a cell through signaling;
generally, when an operator deploys a network, each cell and a target cell of an opposite end adopt wide beams in a relatively fixed direction to perform certain overlapping coverage, so that the pointing direction and the width of the beams are ensured, and no blind area is left. And configures a unique address (ID) of a cell where these beams are located to the network side through the structure as described in table 1. And the network side will periodically inform the terminal of these parameter configurations by broadcasting or dedicated signaling.
Step S702, if the signal measurement value of the current terminal position A is larger than the set threshold value, no action related to switching measurement needs to be prepared;
assuming that the current terminal is at location a at network node 1(Cell1), the RSRP measurement value of location a is RSRP-90 and RSRQ-5, which fails to fall below the set threshold Thresh _ value (-98, -10). I.e., when a is in the core coverage area of Cell1, there is no need to prepare any handover measurement related actions.
Step S703, if the signal measurement value of the current terminal position B is smaller than the set threshold value, reporting the corresponding measurement result to the network;
as the terminal moves to location B, it is assumed that the RSRP of location B is-100 and RSRQ is-11, and this time is lower than the set threshold Thresh _ value (-98, -10), which indicates that the terminal is already in the coverage edge of Cell1 soon and needs to be ready for measurement. The parameters known by the terminal at this time are the candidate Beam IDs as described in table 1. For the measurement of the serving cell, the terminal needs to try to acquire Beam in the set of BeamIDSet ═ {1,2,3} and measure the signal value at this time. For the target cell, it is necessary to attempt to acquire BeamIDSet ═ {21,22,23} and BeamIDSet ═ 31,32,33 }. Assuming that the results of each Beam measured at this time are as follows:
TABLE 1
It can be seen that the Beam of the best serving Cell is Beam id 1, and the Beam of the target Cell is the best 21, that is, corresponds to Cell 2. At this time, the measurement result corresponding to Beam with Beam ID 21 of Cell2 and its ID are reported to the network.
The switching threshold of the network is assumed to be that the target cell has to be 5dB stronger than the current cell RSRP and 3dB stronger than the current cell RSRQ. Then the comparison shows that the handover is not yet sufficient. The network does not issue any handover indication. The terminal continues to measure periodically.
Step S704, if the signal measurement difference value between the current service cell and the target cell exceeds the switching threshold value, the terminal is switched to the target cell;
assuming that the terminal continues to move to location C. the results of the Handover Beam measurements at location C are assumed to be as in table 2 below:
TABLE 2
It can be seen that the signal of BeamID ═ 22 is already significantly stronger than the signal of BeamID ═ 1, and the difference has exceeded the set handover threshold. At this time, after the terminal reports the measurement result to the network. The network issues a switching instruction on the Beam with the Beam ID of 1. And after the terminal completes the handover, the terminal is handed over to the target cell with the BeamID of 22.
After the handover is completed, the measurement and selection are performed according to the existing 3GPP method for other beams except for the configured handover Beam {21,22,23}, and RSRP and RSRQ of the terminal at the Cell2 are obtained, assuming that the measured RSRP is-92 dBm and RSRQ is-8 dB. In this case, the set Thresh _ value { -90, -7} is also lower. Periodic measurements of the Handover Beam are continued in order to avoid the terminal again needing to be prepared for Handover.
Step S705, if the signal measurement value of the current terminal position D is greater than the set threshold, the terminal abandons the acquisition and measurement of the beam.
As the terminal moves to position D, at this point the RSRP and RSRQ of Cell2, assume that the measured RSRP is-85 dBm and RSRQ-5 dB, already significantly higher than Thresh _ value { -90, -7 }. At the moment, the terminal gives up the acquisition and measurement work for any Handover Beam, and the whole process is completed.
The structure of the parameter configuration of the Handover BeamSetList in this embodiment is shown in table 3.
TABLE 3
In table 3, a handover beamsetlist is represented as a dedicated beam allocation table, a physical cell id ═ 1 is represented as an identity of a serving cell, a beam idset ═ {1,2,3} is represented as a beam in a set, a Thresh _ type ═ { RSRP, RSRQ } is represented as a signal strength (RSRP) and a signal quality (RSRQ) of a corresponding beam, a physical cell id ═ 2 and a physical cell id ═ 3 are represented as an identity of a target cell, a BeamIDSet { (21, 22,23} and a BeamIDSet { (31, 32,33} are respectively identified as a corresponding beam set, a Thresh _ value { -98, -10}, a Thresh _ value { -90, -7} and a Thresh _ value { -95, -8} are respectively set as a threshold value.
Fig. 7B is a schematic diagram illustrating coverage of a Handover Beam configuration set in an embodiment, as shown in fig. 7B, a Beam (Beam) is divided into a dedicated Beam and a common Beam, wherein the dedicated Beam is used for preparation measurement before Handover, and a signal radiation direction of the dedicated Beam does not follow movement of a terminal. In this embodiment, except for the configured dedicated Beam Handover Beam ═ 21,22,23, the measurement for other Beam (regular Beam) is as shown as a, b corresponding to Celln in the figure. The beam sets corresponding to beamsets {1,2,3} of the serving cell, beamsets {21,22,23} and beamsets {31,32,33} of the target cell are all covered by the configuration set in fig. 7B, and a schematic diagram is shown.
Based on the foregoing embodiments, an embodiment of the present invention provides a network switching apparatus, where the apparatus includes each included unit, each module included in each unit, and each sub-module included in each module, which may be implemented by a processor in a computer device; of course, may be implemented by logic circuits; in implementation, the processor may be a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.
Fig. 8 is a schematic diagram of a structure of a network switching apparatus according to an embodiment of the present invention, and as shown in fig. 8, the apparatus 800 includes:
a first receiving unit 801 configured to receive a switching instruction issued by a network side;
a first determining unit 802 configured to determine, in response to the handover instruction, a dedicated beam satisfying a preset first condition from a last measurement report as a target handover beam;
an executing unit 803 configured to execute the handover instruction to handover to the target handover beam.
In another embodiment, the dedicated beam is used for preparation measurement before handover, and the signal radiation direction of the dedicated beam does not follow the movement of the terminal, and the first determining unit includes:
a first determining module configured to determine one of the dedicated beams with the signal measurement value greater than a first threshold value in the last measurement report as a target handover beam; or
And the second determination module is configured to determine the special beam with the largest signal measurement value in the last measurement report as the target handover beam.
In other embodiments, the apparatus further comprises:
a first measurement unit, configured to measure beams other than the target handover beam in the serving cell after successful handover to the target handover beam, where the serving cell is a cell to which the target handover beam belongs;
a second determining unit configured to determine a signal strength value of the serving cell according to signal measurement values of other beams in the serving cell;
and a second measurement unit configured to stop measuring the dedicated target handover beam in the serving cell from a next measurement period and continue measuring the other beams if the signal strength value of the serving cell is greater than or equal to a second threshold value.
In other embodiments, the apparatus further comprises:
a third measuring unit configured to measure the dedicated beam of the serving cell and the dedicated beam of the target cell if the signal measurement value of the serving cell is smaller than a corresponding second threshold;
a third determining unit configured to determine a first dedicated beam in the serving cell for which a signal measurement value satisfies a second condition and a second dedicated beam in the target cell for which a signal measurement value satisfies a third condition;
a forming unit configured to form a measurement report from the identity and signal measurements of the first dedicated beam and the identity and signal measurements of the second dedicated beam;
and the reporting unit is configured to report the measurement report to a network side on the special beam.
In other embodiments, the apparatus further comprises:
the second receiving unit is configured to receive a switching beam identifier list issued by a network side;
a fourth determining unit, configured to determine the beam identifier of the dedicated beam of the serving cell and the beam identifier of the dedicated beam of the target cell according to the handover beam identifier list;
a storage unit configured to store a beam identification of the dedicated beam of the serving cell and a beam identification of the dedicated beam of the target cell;
correspondingly, the third measurement unit is configured to measure the dedicated beam of the serving cell according to the beam identifier of the dedicated beam of the serving cell, and measure the dedicated beam of the target cell according to the beam identifier of the dedicated beam of the target cell.
In other embodiments, the apparatus further comprises:
a reading unit configured to read a beam identifier of a dedicated beam of each cell in the handover beam identifier list;
a fourth measurement unit, configured to measure each dedicated beam according to the beam identifier of the dedicated beam of each cell in the cell, so as to obtain a signal measurement value of each dedicated beam;
correspondingly, the third determining unit includes:
a first sequencing module configured to sequence the dedicated beams of the serving cell according to the signal measurement values to obtain a first dedicated beam satisfying a second condition;
and the second sequencing module is configured to sequence the special beams of the target cell according to the signal measurement values to obtain second special beams meeting a third condition.
Fig. 9 is a schematic structural diagram of an apparatus for allocating dedicated handover beams according to an embodiment of the present invention, as shown in fig. 9, the apparatus 900 includes:
an allocating unit 901 configured to allocate a dedicated beam set to a terminal;
an informing unit 902 configured to inform the terminal through downlink signaling, wherein a dedicated beam in the dedicated beam set is used for preparation measurement before handover.
Fig. 10 is a schematic diagram of a structure of a network switching apparatus according to another embodiment of the present invention, as shown in fig. 10, the apparatus 1000 includes:
a third receiving unit 1001, configured to receive a measurement report sent by a terminal on a dedicated beam, where the measurement report carries a signal measurement value of a beam of a serving cell and a signal measurement value of a beam of a target cell;
a sending unit 1002, configured to send a handover signaling to a terminal on the dedicated beam when it is determined that the signal measurement value of the beam of the serving cell and the signal measurement value of the beam of the target cell meet a preset second condition.
The above description of the apparatus embodiments, similar to the above description of the method embodiments, has similar beneficial effects as the method embodiments. For technical details not disclosed in the embodiments of the apparatus according to the invention, reference is made to the description of the embodiments of the method according to the invention for understanding.
It should be noted that, in the embodiment of the present invention, if the method is implemented in the form of a software functional module and sold or used as a standalone product, the method may also be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a network-side switching device (which may be a terminal or a network) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
Correspondingly, an embodiment of the present invention provides a network-side handover apparatus, including a memory and a processor, where the memory stores a computer program operable on the processor, and the processor implements the foregoing dedicated handover beam allocation method or the foregoing steps in the network handover method when executing the program.
Correspondingly, an embodiment of the present invention provides a computer-readable storage medium, in which a computer program is stored, and the computer program is configured to implement the steps in the network handover method when executed.
Here, it should be noted that: the above description of the storage medium and device embodiments is similar to the description of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the storage medium and the apparatus according to the invention, reference is made to the description of the embodiments of the method according to the invention.
It should be noted that fig. 11 is a schematic diagram of a hardware entity of a network-side switching device in an embodiment of the present invention, and as shown in fig. 11, the hardware entity of the computer device 1100 includes: a processor 1101, a communication interface 1102 and a memory 1103, wherein
The processor 1101 generally controls the overall operation of the computer device 1100.
The communication interface 1102 may enable the computer device to communicate with other terminals or servers via a network.
The Memory 1103 is configured to store instructions and applications executable by the processor 1101, and may also buffer data (e.g., image data, audio data, voice communication data, and video communication data) to be processed or already processed by the processor 1101 and modules in the computer device 1100, and may be implemented by a FLASH Memory (FLASH) or a Random Access Memory (RAM).
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (13)
1. A method for network handover, the method comprising:
the terminal receives a switching instruction issued by a network side;
the terminal responds to the switching instruction and determines a special beam meeting a preset first condition from a last measurement report as a target switching beam;
executing the switching instruction, and switching to the target switching beam;
after the terminal is successfully switched to the target switching wave beam, measuring other wave beams except the special wave beam in a service cell, wherein the service cell is a cell to which the target switching wave beam belongs;
determining a signal strength value of the serving cell according to signal measurement values of other beams in the serving cell;
and if the signal strength value of the serving cell is greater than or equal to a second threshold value, the terminal stops measuring the special beam in the serving cell from the next measurement period and continues measuring other beams.
2. The method according to claim 1, wherein the dedicated beam is used for the preparation measurement before handover, the signal radiation direction of the dedicated beam does not follow the movement of the terminal, and the determining the dedicated beam satisfying the preset first condition from the last measurement report as the target handover beam comprises:
the terminal determines one of the dedicated beams having the signal measurement value greater than the first threshold in the last measurement report as a target handover beam, or,
and the terminal determines the special beam with the maximum signal measurement value in the last measurement report as a target switching beam.
3. The method of claim 1, further comprising:
if the signal intensity value of the serving cell is smaller than the corresponding second threshold value, the terminal measures the special beam of the serving cell and the special beam of the target cell;
the terminal determines a first special beam of which the signal measurement value in the serving cell meets a second condition and a second special beam of which the signal measurement value in the target cell meets a third condition;
the terminal forms a measurement report according to the identification and the signal measurement value of the first special beam and the identification and the signal measurement value of the second special beam;
and the terminal reports the measurement report to a network side on a special beam.
4. The method of claim 3, further comprising:
the terminal receives a special beam identification list issued by a network side;
the terminal determines the beam identifier of the special beam of the serving cell and the beam identifier of the special beam of the target cell according to the special beam identifier list;
storing a beam identification of the dedicated beam of the serving cell and a beam identification of the dedicated beam of the target cell;
correspondingly, the terminal measuring the dedicated beam of the serving cell and the dedicated beam of the target cell includes: measuring the dedicated beam of the serving cell according to the beam identity of the dedicated beam of the serving cell, and measuring the dedicated beam of the target cell according to the beam identity of the dedicated beam of the target cell.
5. The method of claim 4, further comprising:
reading the beam identifier of the dedicated beam of each cell in the dedicated beam identifier list;
measuring each special beam according to the beam identifier of the special beam of each cell to obtain a signal measurement value of each special beam;
correspondingly, the determining, by the terminal, a first beam in the serving cell and a second beam in the target cell, where the signal measurement value satisfies a second condition, includes:
sorting the special beams of the service cell according to the signal measurement value to obtain a first special beam meeting a second condition;
and sequencing the special beams of the target cell according to the signal measurement value to obtain a second special beam meeting a third condition.
6. A method for allocating dedicated handover beams, the method comprising:
a network side allocates a special beam set to a terminal and informs the terminal through downlink signaling, wherein the special beam in the special beam set is used for preparing measurement before switching;
the network side sends a switching instruction to the terminal so that the terminal receives the switching instruction sent by the network side; the terminal responds to the switching instruction and determines a special beam meeting a preset first condition from a last measurement report as a target switching beam; executing the switching instruction, and switching to the target switching beam; after the terminal is successfully switched to the target switching wave beam, measuring other wave beams except the special wave beam in a service cell, wherein the service cell is a cell to which the target switching wave beam belongs; determining a signal strength value of the serving cell according to signal measurement values of other beams in the serving cell; and if the signal strength value of the serving cell is greater than or equal to a second threshold value, the terminal stops measuring the special beam in the serving cell from the next measurement period and continues measuring other beams.
7. A method for network handover, the method comprising:
a network side receives a measurement report sent by a terminal on a special beam, wherein the measurement report carries a signal measurement value of a beam of a serving cell and a signal measurement value of a beam of a target cell;
when the network side determines that the signal measurement value of the beam of the serving cell and the signal measurement value of the beam of the target cell meet a preset second condition, the network side sends a handover signaling to a terminal on the dedicated beam, so that the terminal responds to the handover instruction and determines the dedicated beam meeting the preset first condition from the last measurement report as a target handover beam; executing the switching instruction, and switching to the target switching beam; after the terminal is successfully switched to the target switching wave beam, measuring other wave beams except the special wave beam in the service cell, wherein the service cell is a cell to which the target switching wave beam belongs; determining a signal strength value of the serving cell according to signal measurement values of other beams in the serving cell; and if the signal strength value of the serving cell is greater than or equal to a second threshold value, the terminal stops measuring the special beam in the serving cell from the next measurement period and continues measuring other beams.
8. A network switching apparatus, the apparatus comprising:
the first receiving unit is configured to receive a switching instruction issued by a network side;
a first determining unit configured to determine, in response to the handover instruction, a dedicated beam satisfying a preset first condition from a last measurement report as a target handover beam;
the execution unit is configured to execute the switching instruction and switch to the target switching beam;
a first measurement unit, configured to measure beams other than the target handover beam in a serving cell after successful handover to the target handover beam, where the serving cell is a cell to which the target handover beam belongs;
a second determining unit configured to determine a signal strength value of the serving cell according to signal measurement values of other beams in the serving cell;
and a second measurement unit configured to stop measuring the dedicated target handover beam in the serving cell from a next measurement period and continue measuring the other beams if the signal strength value of the serving cell is greater than or equal to a second threshold value.
9. An apparatus for allocating dedicated handover beams, the apparatus comprising:
an allocation unit configured to allocate a dedicated set of beams to a terminal;
a notification unit configured to notify a terminal through downlink signaling, wherein a dedicated beam in the dedicated beam set is used for preparation measurement before handover; and a switching instruction issued to the terminal so that the terminal receives the switching instruction issued by the network side; the terminal responds to the switching instruction and determines a special beam meeting a preset first condition from a last measurement report as a target switching beam; executing the switching instruction, and switching to the target switching beam; after the terminal is successfully switched to the target switching wave beam, measuring other wave beams except the special wave beam in a service cell, wherein the service cell is a cell to which the target switching wave beam belongs; determining a signal strength value of the serving cell according to signal measurement values of other beams in the serving cell; and if the signal strength value of the serving cell is greater than or equal to a second threshold value, the terminal stops measuring the special beam in the serving cell from the next measurement period and continues measuring other beams.
10. A network switching apparatus, the apparatus comprising:
a third receiving unit, configured to receive, on a dedicated beam, a measurement report sent by a terminal, where the measurement report carries a signal measurement value of a beam of a serving cell and a signal measurement value of a beam of a target cell;
a sending unit, configured to determine that the signal measurement value of the beam of the serving cell and the signal measurement value of the beam of the target cell satisfy a preset second condition, the network side sends a handover signaling to a terminal on the dedicated beam, so that the terminal responds to the handover instruction, and determines, from a last measurement report, the dedicated beam that satisfies the preset first condition as a target handover beam; executing the switching instruction, and switching to the target switching beam; after the terminal is successfully switched to the target switching wave beam, measuring other wave beams except the special wave beam in the service cell, wherein the service cell is a cell to which the target switching wave beam belongs; determining a signal strength value of the serving cell according to signal measurement values of other beams in the serving cell; and if the signal strength value of the serving cell is greater than or equal to a second threshold value, the terminal stops measuring the special beam in the serving cell from the next measurement period and continues measuring other beams.
11. A terminal comprising a memory and a processor, the memory storing a computer program operable on the processor, wherein the processor when executing the program performs the steps in the network handover method according to any of claims 1 to 5.
12. A network side handover device comprising a memory and a processor, the memory storing a computer program operable on the processor, wherein the processor implements the method for allocating dedicated handover beams according to claim 6 or the steps in the method for network handover according to claim 7 when executing the program.
13. A computer-readable storage medium, in which a computer program is stored, which, when being executed, is configured to implement the steps of the network handover method according to any one of claims 1 to 5.
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| CN114071623A (en) * | 2020-08-03 | 2022-02-18 | 中国移动通信集团山东有限公司 | Method, device, equipment and storage medium for 5G beam fast switching |
| CN114390648A (en) * | 2020-10-20 | 2022-04-22 | 上海大唐移动通信设备有限公司 | Energy saving method, network device, apparatus and storage medium |
| CN115604828A (en) * | 2021-07-09 | 2023-01-13 | 中国移动通信有限公司研究院（Cn） | Beam transmission method, device, base station, terminal and storage medium |
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