CN112770362A - Cell switching method, device and equipment - Google Patents
Cell switching method, device and equipment Download PDFInfo
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- CN112770362A CN112770362A CN201911002583.0A CN201911002583A CN112770362A CN 112770362 A CN112770362 A CN 112770362A CN 201911002583 A CN201911002583 A CN 201911002583A CN 112770362 A CN112770362 A CN 112770362A
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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
- H04W36/0085—Hand-off measurements
- H04W36/0088—Scheduling hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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Abstract
The embodiment of the invention relates to the technical field of wireless communication, and discloses a cell switching method, a device and equipment. Wherein, the method comprises the following steps: acquiring the level of a serving cell; judging whether the level of the serving cell is greater than a first switching event selection threshold; and if the level of the service cell is larger than the first switching event selection threshold, determining whether to perform cell switching according to an absolute threshold switching event. Through the mode, the embodiment of the invention can flexibly set the switching event aiming at the same pilot frequency point in different level intervals, thereby carrying out flexible switching.
Description
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a cell switching method, a device and equipment.
Background
Under the condition of a Long Term Evolution (LTE) system pilot frequency networking, a fixed switching event is usually set on a base station side for the same pilot frequency point, when a serving cell meets a pilot frequency measurement condition, a terminal starts to perform pilot frequency measurement, and if the receiving levels of the serving cell and a pilot frequency adjacent cell meet a switching time requirement, pilot frequency switching is triggered.
The current cell switching method can only set a fixed switching event and can not carry out flexible switching.
Disclosure of Invention
In view of the foregoing problems, embodiments of the present invention provide a cell handover method, apparatus, and device, which can flexibly set a handover event for the same inter-frequency point in different level intervals, so as to perform flexible handover.
According to an aspect of the embodiments of the present invention, there is provided a cell handover method, including: acquiring the level of a serving cell; judging whether the level of the serving cell is greater than a first switching event selection threshold; and if the level of the service cell is larger than the first switching event selection threshold, determining whether to perform cell switching according to an absolute threshold switching event.
In an optional manner, the determining whether to perform cell handover according to an absolute threshold handover event further includes: if receiving the information corresponding to the absolute threshold switching event, controlling the terminal to switch the cell; and the information corresponding to the absolute threshold switching event is sent by the terminal when the level of the pilot frequency adjacent cell is greater than the first switching threshold.
In an optional manner, the method further comprises: judging whether the level of the serving cell is smaller than a second switching event selection threshold; and if the level of the service cell is smaller than the second switching event selection threshold, determining whether to perform cell switching according to a relative threshold switching event.
In an alternative form, the first handover event selection threshold is greater than the second handover event selection threshold.
In an optional manner, the determining whether to perform cell handover according to the relative threshold handover event further includes: if receiving the information corresponding to the relative threshold switching event, carrying out cell switching; and the information corresponding to the relative threshold switching event is sent by the terminal when the difference value between the level of the pilot frequency adjacent cell and the level of the service cell is greater than a second switching threshold.
In an optional manner, the method further comprises: if the level of the service cell is greater than the first switching event selection threshold at a first moment and cell switching is not performed, continuing to determine whether to perform cell switching according to an absolute threshold event when the level of the service cell is not greater than the first switching event selection threshold and not less than the second switching event selection threshold at a second moment; if the level of the serving cell is smaller than the second switching event selection threshold at the third moment and the cell switching is not performed, continuing to determine whether to perform the cell switching according to the relative threshold event when the level of the serving cell is not larger than the first switching event selection threshold and not smaller than the second switching event selection threshold at the fourth moment.
In an optional manner, the method further comprises: judging whether the level of the serving cell meets pilot frequency measurement starting conditions or not; and if so, indicating the terminal to start the pilot frequency measurement.
According to another aspect of the embodiments of the present invention, there is provided a cell switching apparatus, including: the level acquisition module is used for acquiring the level of a serving cell; a first judging module, configured to judge whether a level of the serving cell is greater than a first handover event selection threshold; and the first switching module is used for determining whether to carry out cell switching according to an absolute threshold switching event if the level of the service cell is greater than the first switching event selection threshold.
According to still another aspect of the embodiments of the present invention, there is provided a cell switching apparatus, including: a processor, a memory, a communication interface, the processor, the memory, and the communication interface in communication with each other; the memory is configured to store at least one executable instruction that causes the processor to perform the operations of the cell handover method as described above.
According to another aspect of the embodiments of the present invention, there is provided a computer-readable storage medium having at least one executable instruction stored therein, the executable instruction causing a processor to execute the cell handover method as described above.
The embodiment of the invention judges whether the level of the service cell is greater than the first switching event selection threshold or not by acquiring the level of the service cell, and if the level of the service cell is determined to be greater than the first switching event selection threshold, whether the cell switching is carried out or not is determined according to the absolute threshold switching event, and the switching event can be flexibly set aiming at the same pilot frequency point in different level intervals, thereby carrying out flexible switching.
The foregoing description is only an overview of the technical solutions of the embodiments of the present invention, and the embodiments of the present invention can be implemented according to the content of the description in order to make the technical means of the embodiments of the present invention more clearly understood, and the detailed description of the present invention is provided below in order to make the foregoing and other objects, features, and advantages of the embodiments of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart illustrating a cell handover method according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a cell handover method according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present invention;
fig. 4 shows a schematic structural diagram of a cell switching device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 shows a flowchart of a cell handover method according to an embodiment of the present invention. The method is applied to cell switching equipment. As shown in fig. 1, the method comprises the steps of:
The serving cell is a cell where the terminal currently resides. The level of the serving cell is obtained, and the specific implementation may be: the terminal reports a Measurement Report (MR), wherein the Measurement Report includes the level of the serving cell, and the level of the serving cell is obtained from the Measurement Report.
The first handover event selection threshold is a preset level threshold value for selecting a handover event, and may be set according to a use situation in an actual application. For example, the first handover event selection threshold is-100 dBm.
Judging whether the level of the serving cell is greater than a first handover event selection threshold may specifically be: the cell switching device compares the level of the serving cell with a first switching event selection threshold to determine whether the level of the serving cell is greater than the first switching event selection threshold.
The absolute threshold switching event may be an a4 event, and the a4 event indicates that the neighbor level is greater than the threshold value.
In this embodiment, determining whether to perform cell handover according to an absolute threshold handover event further includes: if receiving the information corresponding to the absolute threshold switching event, controlling the terminal to switch the cell; and the information corresponding to the absolute threshold switching event is sent by the terminal when the level of the pilot frequency adjacent cell is greater than the first switching threshold. Then the specific implementation of step 130 may be: when the level of the service cell is determined to be larger than the first switching event selection threshold and the level of the pilot frequency adjacent cell is determined to be larger than the first switching threshold by the terminal, the terminal reports a pilot frequency switching measurement report, the pilot frequency switching measurement report comprises information corresponding to the absolute threshold switching event, the cell switching equipment receives the information corresponding to the absolute threshold switching event, and the cell switching equipment controls the terminal to carry out cell switching. For example, assuming that the first handover event selection threshold is-100 dBm and the first handover threshold is-80 dBm, if the level of the serving cell is-99 dBm, determining that the level of the serving cell is greater than the first handover event selection threshold, if the level of the inter-frequency neighboring cell is obtained to be-70 dBm, that is, the level of the inter-frequency neighboring cell is greater than the first handover threshold, triggering the terminal to report an a4 event, and after the cell handover device receives the a4 event, controlling the terminal to perform cell handover.
In some other implementations, determining whether to perform a cell handover based on an absolute threshold handover event further includes: the cell switching equipment acquires the level of the pilot frequency adjacent cell, judges whether the level of the pilot frequency adjacent cell is greater than a first switching threshold, and controls the terminal to carry out cell switching if the level of the pilot frequency adjacent cell is determined to be greater than the first switching threshold.
The control terminal performs cell switching, specifically: and the control terminal is switched to the pilot frequency adjacent cell from the service cell.
In some embodiments, the method further comprises: judging whether the level of the serving cell meets the pilot frequency measurement starting condition or not; and if so, indicating the terminal to start the pilot frequency measurement. After step 110, after the level of the serving cell is obtained, it is determined whether the level of the serving cell satisfies the inter-frequency measurement starting condition. The pilot frequency measurement starting condition may be a pilot frequency measurement starting threshold, where the pilot frequency measurement starting threshold is greater than the first handover event selection threshold, and when the level of the serving cell is less than the pilot frequency measurement starting threshold, the terminal is instructed to start pilot frequency measurement. Of course, in some other embodiments, the pilot frequency measurement starting condition may also be other index conditions, and when the pilot frequency measurement starting condition is met, the terminal starts to perform pilot frequency measurement. The pilot frequency measurement refers to measuring the level of a pilot frequency adjacent region. One embodiment may be: acquiring the level of a serving cell, and judging whether the level of the serving cell meets the pilot frequency measurement starting condition or not; if the level of the serving cell is greater than the first switching event selection threshold, indicating the terminal to start different frequency measurement, and determining whether to perform cell switching according to the absolute threshold switching event.
The embodiment of the invention judges whether the level of the service cell is greater than the first switching event selection threshold or not by acquiring the level of the service cell, and if the level of the service cell is determined to be greater than the first switching event selection threshold, whether the cell switching is carried out or not is determined according to the absolute threshold switching event, and the switching event can be flexibly set aiming at the same pilot frequency point in different level intervals, thereby carrying out flexible switching.
Fig. 2 shows a flowchart of a cell handover method according to another embodiment of the present invention. The method is applied to cell switching equipment. As shown in fig. 2, the method comprises the steps of:
For example, after determining that the level of the serving cell is not greater than the first handover event selection threshold, determining whether the level of the serving cell is less than the second handover event selection threshold. Wherein the first handover event selection threshold may be greater than or equal to the second handover event selection threshold. The second handover event selection threshold is another preset level threshold value for selecting a handover event, and may be set according to a use situation in an actual application. For example, the second handover event selection threshold is-105 dBm.
The relative threshold switching event may be an A3 event, and the A3 event means that the difference between the neighboring cell level and the serving cell level is greater than the threshold value.
In this embodiment, determining whether to perform cell handover according to the relative threshold handover event further includes: if receiving the information corresponding to the relative threshold switching event, carrying out cell switching; and the information corresponding to the relative threshold switching event is sent by the terminal when the difference value between the level of the pilot frequency adjacent cell and the level of the service cell is greater than the second switching threshold. Then the specific implementation of step 250 may be: when the level of the service cell is determined to be smaller than the second switching event selection threshold, and when the terminal determines that the difference value between the level of the pilot frequency adjacent cell and the level of the service cell is larger than the second switching threshold, the terminal reports a pilot frequency switching measurement report, the pilot frequency switching measurement report comprises information corresponding to the relative threshold switching event, the cell switching equipment receives the information corresponding to the relative threshold switching event, and the cell switching equipment controls the terminal to perform cell switching. For example, assuming that the first handover event selection threshold is-100 dBm, the second handover event selection threshold is-105 dBm, and the second handover threshold is 10dBm, if the level of the serving cell is-120 dBm, determining that the level of the serving cell is greater than the first handover event selection threshold, if the level of the inter-frequency neighboring cell is-90 dBm, that is, the difference between the level of the inter-frequency neighboring cell and the level of the serving cell is greater than the second handover threshold, triggering the terminal to report an A3 event, and after the cell handover device receives the A3 event, controlling the terminal to perform cell handover.
In some other implementations, determining whether to perform a cell handover based on a relative threshold handover event further comprises: the cell switching equipment acquires the level of the pilot frequency adjacent cell, judges whether the difference value between the level of the pilot frequency adjacent cell and the level of the service cell is larger than a second switching threshold, and controls the terminal to carry out cell switching if the difference value between the level of the pilot frequency adjacent cell and the level of the service cell is larger than the second switching threshold.
The first switching threshold and the second switching threshold may be equal or unequal, and may be set freely according to actual use conditions. In some embodiments, the method may further comprise: and sending the first switching threshold information and/or the second switching threshold information to the terminal so that the terminal judges whether the switching requirement is met according to the first switching threshold information or the second switching threshold information. For example, when the level of the serving cell is determined to be greater than the first handover event selection threshold, the first handover threshold information is issued to the terminal; and when the level of the service cell is determined to be smaller than the second switching event selection threshold, transmitting second switching threshold information to the terminal.
In some embodiments, the method further comprises: and if the level of the serving cell is greater than the first switching event selection threshold at the first moment and the cell switching is not carried out, continuing to determine whether to carry out the cell switching according to the absolute threshold event when the level of the serving cell is not greater than the first switching event selection threshold and not less than the second switching event selection threshold at the second moment. Wherein the first time is earlier than the second time. For example, assuming that the first handover event selection threshold is-100 dBm, the second handover event selection threshold is-105 dBm, and the first handover threshold is-80 dBm, if the level of the serving cell at the current moment is-99 dBm, the level of the different-frequency neighboring cell is-85 dBm, after 5 minutes, the level of the serving cell is changed to-103 dBm, and the level of the different-frequency neighboring cell is changed to-75 dBm, the terminal reports an a4 event, and after the cell switching device receives the a4 event, the terminal is controlled to perform cell switching.
In some embodiments, the method further comprises: and if the level of the serving cell is smaller than the second switching event selection threshold at the third moment and the cell switching is not carried out, continuing to determine whether to carry out the cell switching according to the relative threshold event when the level of the serving cell is not larger than the first switching event selection threshold and not smaller than the second switching event selection threshold at the fourth moment. Wherein the third time is earlier than the fourth time. For example, assuming that the first handover event selection threshold is-100 dBm, the second handover event selection threshold is-105 dBm, and the second handover threshold is 10dBm, if the level of the serving cell at the current time is-106 dBm, the level of the different-frequency neighboring cell is-99 dBm, after 5 minutes, the level of the serving cell is changed to-104 dBm, and the level of the different-frequency neighboring cell is changed to-93 dBm, the terminal reports an A3 event, and after receiving the A3 event, the cell handover device controls the terminal to perform cell handover.
The embodiment of the invention judges whether the level of the service cell is larger than the first switching event selection threshold or smaller than the second switching event selection threshold by acquiring the level of the service cell, if the level of the service cell is larger than the first switching event selection threshold, determining whether to perform cell handover based on the absolute threshold handover event, if it is determined that the level of the serving cell is less than a second handover event selection threshold, whether the cell switching is carried out or not is determined according to the relative threshold switching event, the switching event can be flexibly set aiming at the same pilot frequency point in different level intervals, thereby realizing flexible switching, and realizing the occupation of users in the sub-level areas of different areas through the switching threshold setting, meanwhile, the user can occupy the cell with better coverage in time when covering the weak field, the purposes of absolute occupation of the middle and near points and preferential occupation of the far point are met, and more reasonable residence of the user is realized.
Fig. 3 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present invention. As shown in fig. 3, the apparatus 300 includes: a level acquisition module 310, a first judgment module 320 and a first switching module 330.
The level obtaining module 310 is configured to obtain a level of a serving cell; the first determining module 320 is configured to determine whether the level of the serving cell is greater than a first handover event selection threshold; the first handover module 330 is configured to determine whether to perform cell handover according to an absolute threshold handover event if it is determined that the level of the serving cell is greater than the first handover event selection threshold.
In an alternative manner, the first switching module 330 is specifically configured to: if receiving the information corresponding to the absolute threshold switching event, controlling the terminal to switch the cell; and the information corresponding to the absolute threshold switching event is sent by the terminal when the level of the pilot frequency adjacent cell is greater than the first switching threshold.
In an optional manner, the apparatus 300 further comprises: the second judging module and the second switching module. The second judging module is used for judging whether the level of the service cell is smaller than a second switching event selection threshold or not; and the second switching module is used for determining whether to carry out cell switching according to a relative threshold switching event if the level of the service cell is smaller than the second switching event selection threshold.
In an alternative form, the first handover event selection threshold is greater than the second handover event selection threshold.
In an optional manner, the second switching module is specifically configured to: if receiving the information corresponding to the relative threshold switching event, carrying out cell switching; and the information corresponding to the relative threshold switching event is sent by the terminal when the difference value between the level of the pilot frequency adjacent cell and the level of the service cell is greater than a second switching threshold.
In an optional manner, the apparatus 300 further comprises: the device comprises a third switching module and a fourth switching module. The third switching module is used for: if the level of the service cell is greater than the first switching event selection threshold at a first moment and cell switching is not performed, continuing to determine whether to perform cell switching according to an absolute threshold event when the level of the service cell is not greater than the first switching event selection threshold and not less than the second switching event selection threshold at a second moment; the fourth switching module is used for: if the level of the serving cell is smaller than the second switching event selection threshold at the third moment and the cell switching is not performed, continuing to determine whether to perform the cell switching according to the relative threshold event when the level of the serving cell is not larger than the first switching event selection threshold and not smaller than the second switching event selection threshold at the fourth moment.
In an optional manner, the apparatus 300 further comprises: the device comprises a measurement starting judgment module and a measurement module. The measurement starting judging module is used for judging whether the level of the service cell meets the pilot frequency measurement starting condition or not; and the measurement module is used for indicating the terminal to start the pilot frequency measurement if the measurement is satisfied.
It should be noted that the cell handover apparatus provided in the embodiments of the present invention is an apparatus capable of performing the cell handover method, and all embodiments of the cell handover method are applicable to the apparatus and can achieve the same or similar beneficial effects.
The embodiment of the invention judges whether the level of the service cell is greater than the first switching event selection threshold or not by acquiring the level of the service cell, and if the level of the service cell is determined to be greater than the first switching event selection threshold, whether the cell switching is carried out or not is determined according to the absolute threshold switching event, and the switching event can be flexibly set aiming at the same pilot frequency point in different level intervals, thereby carrying out flexible switching.
An embodiment of the present invention provides a computer storage medium, where at least one executable instruction is stored in the storage medium, and the executable instruction causes a processor to execute a cell handover method in any of the above method embodiments.
The embodiment of the invention judges whether the level of the service cell is greater than the first switching event selection threshold or not by acquiring the level of the service cell, and if the level of the service cell is determined to be greater than the first switching event selection threshold, whether the cell switching is carried out or not is determined according to the absolute threshold switching event, and the switching event can be flexibly set aiming at the same pilot frequency point in different level intervals, thereby carrying out flexible switching.
An embodiment of the present invention provides a computer program product, which includes a computer program stored on a computer storage medium, where the computer program includes program instructions, and when the program instructions are executed by a computer, the computer is caused to execute a cell handover method in any of the above method embodiments.
The embodiment of the invention judges whether the level of the service cell is greater than the first switching event selection threshold or not by acquiring the level of the service cell, and if the level of the service cell is determined to be greater than the first switching event selection threshold, whether the cell switching is carried out or not is determined according to the absolute threshold switching event, and the switching event can be flexibly set aiming at the same pilot frequency point in different level intervals, thereby carrying out flexible switching.
Fig. 4 is a schematic structural diagram of a cell switching device according to an embodiment of the present invention, and the specific embodiment of the present invention does not limit the specific implementation of the cell switching device. For example, the cell switching device may be a base station device or other computing device, and so on.
As shown in fig. 4, the cell switching apparatus may include: a processor (processor)402, a Communications Interface 404, a memory 406, and a Communications bus 408.
Wherein: the processor 402, communication interface 404, and memory 406 communicate with each other via a communication bus 408. A communication interface 404 for communicating with network elements of other devices, such as clients or other servers. The processor 402 is configured to execute the program 410, and may specifically execute the cell handover method in any of the method embodiments described above.
In particular, program 410 may include program code comprising computer operating instructions.
The processor 402 may be a central processing unit CPU or an application Specific Integrated circuit asic or one or more Integrated circuits configured to implement embodiments of the present invention. The computing device includes one or more processors, which may be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
And a memory 406 for storing a program 410. Memory 406 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The embodiment of the invention judges whether the level of the service cell is greater than the first switching event selection threshold or not by acquiring the level of the service cell, and if the level of the service cell is determined to be greater than the first switching event selection threshold, whether the cell switching is carried out or not is determined according to the absolute threshold switching event, and the switching event can be flexibly set aiming at the same pilot frequency point in different level intervals, thereby carrying out flexible switching.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.
Claims (10)
1. A method of cell handover, comprising:
acquiring the level of a serving cell;
judging whether the level of the serving cell is greater than a first switching event selection threshold;
and if the level of the service cell is larger than the first switching event selection threshold, determining whether to perform cell switching according to an absolute threshold switching event.
2. The method of claim 1, wherein determining whether to perform a cell handover based on an absolute threshold handover event further comprises:
if receiving the information corresponding to the absolute threshold switching event, controlling the terminal to switch the cell;
and the information corresponding to the absolute threshold switching event is sent by the terminal when the level of the pilot frequency adjacent cell is greater than the first switching threshold.
3. The method of claim 1, further comprising:
judging whether the level of the serving cell is smaller than a second switching event selection threshold;
and if the level of the service cell is smaller than the second switching event selection threshold, determining whether to perform cell switching according to a relative threshold switching event.
4. The method of claim 3, wherein the first handover event selection threshold is greater than the second handover event selection threshold.
5. The method of claim 3, wherein determining whether to perform a cell handover based on a relative threshold handover event further comprises:
if receiving the information corresponding to the relative threshold switching event, carrying out cell switching;
and the information corresponding to the relative threshold switching event is sent by the terminal when the difference value between the level of the pilot frequency adjacent cell and the level of the service cell is greater than a second switching threshold.
6. The method of claim 4, further comprising:
if the level of the service cell is greater than the first switching event selection threshold at a first moment and cell switching is not performed, continuing to determine whether to perform cell switching according to an absolute threshold event when the level of the service cell is not greater than the first switching event selection threshold and not less than the second switching event selection threshold at a second moment;
if the level of the serving cell is smaller than the second switching event selection threshold at the third moment and the cell switching is not performed, continuing to determine whether to perform the cell switching according to the relative threshold event when the level of the serving cell is not larger than the first switching event selection threshold and not smaller than the second switching event selection threshold at the fourth moment.
7. The method according to any one of claims 1-6, further comprising:
judging whether the level of the serving cell meets pilot frequency measurement starting conditions or not;
and if so, indicating the terminal to start the pilot frequency measurement.
8. An apparatus for cell switching, the apparatus comprising:
the level acquisition module is used for acquiring the level of a serving cell;
a first judging module, configured to judge whether a level of the serving cell is greater than a first handover event selection threshold;
and the first switching module is used for determining whether to carry out cell switching according to an absolute threshold switching event if the level of the service cell is greater than the first switching event selection threshold.
9. A cell switching apparatus, comprising: the system comprises a processor, a memory and a communication interface, wherein the processor, the memory and the communication interface are communicated with each other;
the memory is configured to store at least one executable instruction that causes the processor to perform the operations of the cell handover method according to any one of claims 1 to 7.
10. A computer-readable storage medium having stored therein at least one executable instruction for causing a processor to perform a method for cell handover as claimed in any one of claims 1 to 7.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103597874A (en) * | 2011-06-15 | 2014-02-19 | 瑞典爱立信有限公司 | Handover event prioritization |
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