CN112218343B - Cell different frequency switching method, device and computer equipment - Google Patents
Cell different frequency switching method, device and computer equipment Download PDFInfo
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Abstract
The embodiment of the application provides a cell different frequency switching method, a device and computer equipment, wherein the method comprises the steps of obtaining distance information between each user terminal under a current base station and the base station; judging whether the inter-cell frequency switching is required according to the distance information; and selectively executing the process of cell inter-frequency switching according to the judging result so as to enable the corresponding user terminal to realize continuous coverage from the main service cell to the optimal neighbor cell according to the result of the inter-frequency switching. Therefore, in the cell switching process, the cross-mode switching is triggered in an associated mode, so that more different-frequency adjacent cells can be the selection object of the main service cell, the cell switching is optimized, and the switching reliability is improved.
Description
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to a method, an apparatus, and a computer device for cell different frequency handover.
Background
The duplex mode used in the long term evolution (Long Term Evolution; hereinafter referred to as LTE) system is mainly a time division duplex (Time Division Duplex; hereinafter referred to as TDD) mode and a frequency division duplex (Frequency Division Duplex; hereinafter referred to as FDD) mode, that is, two modes used by a plurality of mobile users; in addition, with the development of the overall construction of mobile communication technology, the Long Term Evolution Voice-over-Term Evolution (VoLTE) service has been gradually accepted by a large number of mobile users.
Currently, in order to ensure the continuity of the VoLTE voice service, a dual-mode single standby wireless voice call continuity (Single Radio Voice Call Continuity; hereinafter referred to as SRVCC) scheme is proposed. However, in the SRVCC solution, only the reference signal received powers (Reference Signal Receiving Power; hereinafter referred to as RSRP) of the primary serving cell and the neighbor cell are considered in the handover decision process, and other factors are not considered, so that the success rate cannot be guaranteed; secondly, even if the handover is successful, due to the defect of the SRVCC scheme, there is still a risk of degrading the VoLTE user to the global system for mobile communications (Global System For Mobile Communications; hereinafter referred to as GSM) service, and the experience of the user is reduced.
Therefore, how to propose a method can ensure continuity of VoLTE service of a User Equipment (UE) under the current LTE system, improve User experience, and have important significance.
Disclosure of Invention
The embodiment of the application provides a method, a device and computer equipment for switching different frequencies of cells, which can trigger cross-mode switching according to the correlation between the RSRP value of adjacent cells and the sequencing value of the adjacent cells in the process of switching the cells, so that more different frequency adjacent cells can be the selection object of a main service cell, the switching of the cells is optimized, and the switching reliability is improved.
In a first aspect, an embodiment of the present application provides a method for cell different frequency handover, including:
acquiring distance information between each user terminal under a current base station and the base station, wherein the distance information is acquired by triggering one or more of signal to interference plus noise ratio and packet loss ratio based on reference signal receiving power of a main service cell reported by the user terminal;
judging whether the inter-cell frequency switching is required according to the distance information;
and selectively executing the process of cell inter-frequency switching according to the judging result so as to enable the corresponding user terminal to realize continuous coverage from the main service cell to the optimal neighbor cell according to the result of the inter-frequency switching.
In one possible implementation manner, the selectively performing the inter-cell handover according to the determination result, so that each ue performs continuous coverage from the primary serving cell to the best neighboring cell according to the inter-cell handover result includes:
when the judgment result is that the cell inter-frequency switching is needed,
sending a first control request signal to a corresponding user terminal so that the user terminal obtains neighbor cell measurement information according to the first control request signal;
acquiring an optimal neighbor cell corresponding to the user terminal according to the neighbor cell measurement information;
the neighbor cell measurement information comprises reference signal receiving power of each neighbor cell and switching parameters of each neighbor cell.
In one possible implementation manner, the obtaining, according to the neighbor cell measurement information, the optimal neighbor cell corresponding to the user terminal includes:
acquiring the reference signal receiving power of each adjacent cell;
according to the comparison result of the reference signal received power and the first preset threshold value, screening each adjacent cell;
acquiring switching parameters of each neighboring cell after screening treatment;
and acquiring the optimal neighbor cell according to the switching parameters, wherein the optimal neighbor cell comprises one or more than one neighbor cells.
Wherein in one possible implementation, the switching parameters include:
switching success rate, switching times, physical resource block utilization rate and interference intensity value.
In one possible implementation manner, after the obtaining the best neighboring cell corresponding to the user terminal according to the neighboring cell measurement information, the method further includes:
and sending a second control request signal to the user terminal so that the user terminal can execute the process of switching from the main service cell to the optimal neighbor cell according to the second control request signal.
Wherein in one possible implementation, the user terminal includes a terminal registered with a long term evolution voice bearer service.
Wherein in one possible implementation, the primary serving cell comprises a time division duplex cell and the best neighbor cell comprises a frequency division duplex cell.
In a second aspect, an embodiment of the present application further provides a device for switching different frequencies in a cell, including:
the first acquisition module is used for acquiring distance information between each user terminal under the current base station and the base station, wherein the distance information is acquired by triggering one or more of signal-to-interference-plus-noise ratio and packet loss rate based on reference signal receiving power of a main serving cell reported by the user terminal;
the first judging module is connected with the first acquiring module and is used for judging whether the cell inter-frequency switching is required according to the distance information;
and the first execution module is connected with the first judgment module and is used for selectively executing the processing of the inter-frequency switching of the cell according to the judgment result so as to enable the corresponding user terminal to realize continuous coverage from the main service cell to the optimal neighbor cell according to the result of the inter-frequency switching.
In a third aspect, an embodiment of the present application further provides a computer apparatus, including:
at least one processor; and
at least one memory communicatively coupled to the processor;
the memory stores program instructions executable by the processor, and the processor invokes the program instructions to perform the cell inter-frequency handover method described above.
In a fourth aspect, an embodiment of the present application further provides a non-transitory computer readable storage medium, where the non-transitory computer readable storage medium stores computer instructions, where the computer instructions cause the computer to execute the above-mentioned cell inter-frequency handover method.
In the above technical solution, after obtaining the distance information between each ue under the current base station and the base station, determining whether to perform cell inter-frequency handover according to the distance information, and then selectively performing cell inter-frequency handover according to the determination result, so that the corresponding ue realizes continuous coverage from the main serving cell to the best neighbor cell according to the inter-frequency handover result. Therefore, in the cell switching process, the cross-mode switching is triggered according to the correlation between the RSRP value of the adjacent cell and the sequencing value of the adjacent cell, so that more different-frequency adjacent cells can be the selection object of the main service cell, the cell switching is optimized, and the switching reliability is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a flowchart of an embodiment of a method for cell inter-frequency handover according to the present application;
fig. 2 is a flowchart of another embodiment of a method for cell inter-frequency handover according to the present application;
fig. 3 is a flowchart of another embodiment of a method for cell inter-frequency handover according to the present application;
fig. 4 is a schematic diagram of a connection structure of an embodiment of a cell inter-frequency handover apparatus according to the present application;
fig. 5 is a schematic diagram of a connection structure of another embodiment of the inter-cell frequency switching device according to the present application;
fig. 6 is a schematic diagram of a connection structure of another embodiment of the inter-cell frequency switching device according to the present application;
FIG. 7 is a schematic diagram of a computer device according to an embodiment of the present application.
Detailed Description
For a better understanding of the technical solution of the present application, the following detailed description of the embodiments of the present application refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Fig. 1 is a flowchart of an embodiment of a method for cell inter-frequency handover according to the present application, as shown in fig. 1, where the method includes:
s101: and acquiring distance information between each user terminal under the current base station and the base station, wherein the distance information is acquired by triggering one or more of signal to interference plus noise ratio and packet loss ratio based on the reference signal receiving power of the main service cell reported by the user terminal.
Specifically, the UE is a Terminal device under the coverage of the base Station, and the Terminal device may be called a Terminal, a User Equipment (UE), a Mobile Station (MS), and a Mobile Terminal (MT). The terminal device may be a mobile phone, tablet, computer with wireless transceiver function, virtual reality terminal device, augmented reality terminal device, wireless terminal in industrial control, etc.
Specifically, the distance information of the present application may be obtained by triggering based on the following three ways:
mode one:
the current base station judges whether the reference signal receiving power is lower than a first early warning threshold according to the reference signal receiving power of a main service cell reported by the user terminal, and when the result is yes, the current base station triggers the user terminal to report the distance information between the current base station and the base station;
specifically, the first early warning threshold may be set by itself according to implementation requirements when the first early warning threshold is specifically implemented, and the size of the first early warning threshold is not limited in this embodiment, for example, the first early warning threshold may be-95 dbm.
Mode two:
and the current base station judges whether the signal to interference plus noise ratio is lower than a second early warning threshold according to the signal to interference plus noise ratio of the main service cell reported by the user terminal, and when the result is yes, the distance information between the user terminal and the base station is triggered.
Mode three:
and the current base station judges whether the packet loss rate is higher than a third early warning threshold according to the packet loss rate of the main service cell reported by the user terminal, and when the result is yes, the distance information between the user terminal and the base station is triggered.
Similarly, the second early warning threshold and the third early warning threshold may be set according to the implementation requirement, for example, the second early warning threshold is set to 0db, and the third early warning threshold is set to 2%.
Specifically, the embodiment of the application can determine the distance from the base station to the user terminal based on the time advance in the measurement report reported by the user terminal; or,
the embodiment of the application can also determine the first azimuth angle of the user terminal based on the signal arrival angle in the measurement report reported by the user terminal, and then determine the distance between the mobile terminal and the base station according to the reference signal received power (Reference Signal Receiving Power; hereinafter referred to as RSRP) of the main serving cell and the RSRP of the neighbor cell extracted from the measurement report.
S102: and judging whether the inter-cell frequency switching is required according to the distance information.
Similarly, the distance information may reflect the distance between the ue and the base station, and when the distance information is greater than or equal to 1 km, the embodiment of the present application may consider that if the ue is always in the current cell, there is a risk that the network cannot cover the current cell; therefore, it is necessary to determine whether or not cell inter-frequency handover is required based on the distance information.
S103: and selectively executing the process of cell inter-frequency switching according to the judging result so as to enable the corresponding user terminal to realize continuous coverage from the main service cell to the optimal neighbor cell according to the result of the inter-frequency switching.
Specifically, referring to fig. 2, S101 shown in fig. 1 of the present application may include:
s201: and when the judging result is that the cell different frequency switching is needed, sending a first control request signal to the corresponding user terminal so that the user terminal obtains neighbor cell measurement information according to the first control request signal.
S202: and acquiring the optimal neighbor cell corresponding to the user terminal according to the neighbor cell measurement information.
The neighbor cell measurement information comprises reference signal receiving power of each neighbor cell and switching parameters of each neighbor cell.
Thus, referring to fig. 3, the step S202 may include the following steps:
s301: and acquiring the reference signal receiving power of each adjacent cell.
S302: and carrying out screening processing of each neighbor cell according to the comparison result of the reference signal received power and the first preset threshold value.
S303: and acquiring the switching parameters of each adjacent cell after the screening process.
S304: and acquiring the optimal neighbor cell according to the switching parameters, wherein the optimal neighbor cell comprises one or more than one neighbor cells.
In the above steps S301 to S304, the RSRP of the neighbor cell may be obtained according to the measurement report reported by the user terminal, and the embodiment of the present application performs preliminary screening on the neighbor cell to be switched according to the RSRP of the neighbor cell, and then selects the best neighbor cell according to the switching parameter and switches, thereby improving the switching efficiency.
Specifically, the above-mentioned handover parameters may include: switching success rate, switching times, physical resource block utilization rate and interference intensity value.
Specifically, the embodiment of the present application may select the best neighbor based on the formula one:
Result i ＝Rank i1 +Rank i2 +Rank i3 +Rank i4 formula (1)
In the above formula (1), rank i1 Ranking value, rank, corresponding to handover success rate of neighbor cells in each neighbor cell i2 Ranking value, rank, corresponding to number of times of switching of neighbor cells in each neighbor cell i3 Ranking value, rank, corresponding to physical resource block utilization rate of representing neighbor cells in each neighbor cell i4 Sequencing value, result, corresponding to interference intensity value representing neighbor cell in each neighbor cell i Representing the obtained final sorting value of the neighbor cells;
wherein, for Rank i1 When the success rate of the switching is larger, rank i1 The smaller; for Rank i2 When the switching times are higher, rank i2 The smaller; for Rank i3 When the utilization rate of the physical resource block is larger, rank i3 The smaller; for Rank i4 When the interference intensity value is lower, rank i4 The smaller.
Specifically, the best neighbor cell in the embodiment of the present application may be a neighbor cell with the smallest final ranking value; or,
the optimal neighbor cell in the embodiment of the application can also be the neighbor cell with the minimum ranking value, so that the situation that the user terminal cannot switch to the neighbor cell with the minimum ranking value due to the occurrence of the neighbor cell can be avoided, and the user terminal can also continue to switch to other neighbor cells, thereby improving the switching success rate.
Specifically, after S202 in the embodiment of the present application, it further includes:
and sending a second control request signal to the user terminal so that the user terminal can execute the process of switching from the main service cell to the optimal neighbor cell according to the second control request signal.
Specifically, the user terminal in the embodiment of the application comprises a terminal registered with a long term evolution voice bearer service.
Specifically, the primary serving cell in the embodiment of the present application includes a time division duplex (Time Divisio n Duplex; hereinafter referred to as TDD) cell, and the best neighbor cell includes a frequency division duplex (Frequency Division Duplex; hereinafter referred to as FDD) cell. The cell different frequency switching method is suitable for switching the user terminal registered with the Volte service from the TDD cell to the FDD cell, so that the coverage characteristic of the FDD cell can be fully utilized to improve the network performance.
In the above-mentioned cell inter-frequency switching method of the present application, after obtaining the distance information between each user terminal under the current base station and the base station, judging whether to need to perform cell inter-frequency switching according to the distance information, and then selectively executing the process of cell inter-frequency switching according to the judging result, so that the corresponding user terminal can realize continuous coverage from the main service cell to the best neighbor cell according to the inter-frequency switching result. Therefore, in the cell switching process, the cross-mode switching is triggered according to the correlation between the RSRP value of the adjacent cell and the sequencing value of the adjacent cell, so that more different-frequency adjacent cells can be the selection object of the main service cell, the cell switching is optimized, and the switching reliability is improved.
Fig. 4 is a schematic diagram of a cell inter-frequency switching apparatus according to an embodiment of the present application, as shown in fig. 4, the apparatus may include: a first acquisition module 11, a first judgment module 12, and a first execution module 13;
the first obtaining module 11 is configured to obtain distance information between each ue and the base station under the current base station, where the distance information is based on one or more of reference signal received power, signal-to-interference-plus-noise ratio, and packet loss ratio of the primary serving cell reported by the ue.
Specifically, the UE is a Terminal device under the coverage of the base Station, and the Terminal device may be called a Terminal, a User Equipment (UE), a Mobile Station (MS), and a Mobile Terminal (MT). The terminal device may be a mobile phone, tablet, computer with wireless transceiver function, virtual reality terminal device, augmented reality terminal device, wireless terminal in industrial control, etc.
Specifically, the distance information of the present application may be obtained by triggering based on the following three ways:
mode one:
the current base station judges whether the reference signal receiving power is lower than a first early warning threshold according to the reference signal receiving power of a main service cell reported by the user terminal, and when the result is yes, the current base station triggers the user terminal to report the distance information between the current base station and the base station;
specifically, the first early warning threshold may be set by itself according to implementation requirements when the first early warning threshold is specifically implemented, and the size of the first early warning threshold is not limited in this embodiment, for example, the first early warning threshold may be-95 dbm.
Mode two:
and the current base station judges whether the signal to interference plus noise ratio is lower than a second early warning threshold according to the signal to interference plus noise ratio of the main service cell reported by the user terminal, and when the result is yes, the distance information between the user terminal and the base station is triggered.
Mode three:
and the current base station judges whether the packet loss rate is higher than a third early warning threshold according to the packet loss rate of the main service cell reported by the user terminal, and when the result is yes, the distance information between the user terminal and the base station is triggered.
Similarly, the second early warning threshold and the third early warning threshold may be set according to the implementation requirement, for example, the second early warning threshold is set to 0db, and the third early warning threshold is set to 2%.
Specifically, the embodiment of the application can determine the distance from the base station to the user terminal based on the time advance in the measurement report reported by the user terminal; or,
the embodiment of the application can also determine the first azimuth angle of the user terminal based on the signal arrival angle in the measurement report reported by the user terminal, and then determine the distance between the mobile terminal and the base station according to the reference signal received power (Reference Signal Receiving Power; hereinafter referred to as RSRP) of the main serving cell and the RSRP of the neighbor cell extracted from the measurement report.
The first determining module 12 is configured to determine whether cell inter-frequency handover is required according to the distance information.
Similarly, the distance information may reflect the distance between the ue and the base station, and when the distance information is greater than or equal to 1 km, the embodiment of the present application may consider that if the ue is always in the current cell, there is a risk that the network cannot cover the current cell; therefore, it is necessary to determine whether or not cell inter-frequency handover is required based on the distance information.
The first execution module 13 is configured to selectively execute a process of performing inter-cell handover according to a determination result, so that the corresponding ue realizes continuous coverage from the primary serving cell to an optimal neighboring cell according to the result of the inter-cell handover.
Specifically, referring to fig. 5, when the determination result of the first determining module 12 indicates that the cell different frequency handover needs to be performed, the first obtaining module 11 shown in fig. 4 of the present application may include a first sending unit 14 and a first obtaining unit 15:
the first sending unit 14 is configured to send a first control request signal to a corresponding ue, so that the ue obtains neighbor measurement information according to the first control request signal.
The first obtaining unit 15 is configured to obtain an optimal neighboring cell corresponding to the user terminal according to the neighboring cell measurement information.
The neighbor cell measurement information comprises reference signal receiving power of each neighbor cell and switching parameters of each neighbor cell.
Specifically, referring to fig. 6, the first acquiring unit 15 shown in fig. 5 of the present application may further include: a first acquisition subunit 16, a first screening subunit 17, a second acquisition subunit 18, and a third acquisition subunit 19;
the first obtaining subunit 16 is configured to obtain the reference signal received power of each neighboring cell.
The first screening subunit 17 is configured to perform screening processing on each neighboring cell according to a comparison result between the reference signal received power and a first preset threshold.
The second acquiring subunit 18 is configured to acquire the handover parameter of each neighboring cell after the screening process.
The third obtaining subunit 19 is configured to obtain the best neighboring cell according to the handover parameter, where the best neighboring cell includes one or more than one best neighboring cells.
Specifically, the first obtaining subunit 16 may obtain the RSRP of the neighboring cell according to the measurement report reported by the user terminal, and in the embodiment of the present application, the neighboring cell to be switched is initially screened according to the RSRP of the neighboring cell, and then the best neighboring cell is selected and switched according to the switching parameter, thereby improving the switching efficiency.
Specifically, the above-mentioned handover parameters may include: switching success rate, switching times, physical resource block utilization rate and interference intensity value.
Specifically, the embodiment of the present application may select the best neighbor based on the formula one:
Result i ＝Rank i1 +Rank i2 +Rank i3 +Rank i4 formula (1)
In the first formula, rank i1 Ranking value, rank, corresponding to handover success rate of neighbor cells in each neighbor cell i2 Ranking value, rank, corresponding to number of times of switching of neighbor cells in each neighbor cell i3 Ranking value, rank, corresponding to physical resource block utilization rate of representing neighbor cells in each neighbor cell i4 Sequencing value, result, corresponding to interference intensity value representing neighbor cell in each neighbor cell i Representing the obtained final sorting value of the neighbor cells;
wherein, for Rank i1 When the success rate of the switching is larger, rank i1 The smaller; for Rank i2 When the switching times are higher, rank i2 The smaller; for Rank i3 When the utilization rate of the physical resource block is larger, rank i3 The smaller; for Rank i4 When the interference intensity value is lower, rank i4 The smaller.
Specifically, the best neighbor cell in the embodiment of the present application may be a neighbor cell with the smallest final ranking value; or,
the optimal neighbor cell in the embodiment of the application can also be the neighbor cell with the minimum ranking value, so that the situation that the user terminal cannot switch to the neighbor cell with the minimum ranking value due to the occurrence of the neighbor cell can be avoided, and the user terminal can also continue to switch to other neighbor cells, thereby improving the switching success rate.
Specifically, the device according to the present application may further include: a first transmitting module;
and the first sending module is used for sending a second control request signal to the user terminal so that the user terminal can execute the process of switching from the main service cell to the optimal neighbor cell according to the second control request signal.
Specifically, the user terminal in the embodiment of the application comprises a terminal registered with a long term evolution voice bearer service.
Specifically, the primary serving cell in the embodiment of the present application includes a time division duplex (Time Divisio n Duplex; hereinafter referred to as TDD) cell, and the best neighbor cell includes a frequency division duplex (Frequency Division Duplex; hereinafter referred to as FDD) cell.
In the above-mentioned inter-cell switching device of the present application, after the first obtaining module 11 obtains the distance information between each ue under the current base station and the base station, the first judging module 12 judges whether to perform inter-cell switching according to the distance information, and then the first executing module 13 selectively executes the inter-cell switching process according to the judging result, so that the corresponding ue realizes continuous coverage from the main serving cell to the best neighbor cell according to the inter-cell switching result. Therefore, in the cell switching process, the cross-mode switching is triggered according to the correlation between the RSRP value of the adjacent cell and the sequencing value of the adjacent cell, so that more different-frequency adjacent cells can be the selection object of the main service cell, the cell switching is optimized, and the switching reliability is improved.
FIG. 7 is a schematic diagram of an embodiment of a computer device of the present application, which may include at least one processor; and at least one memory communicatively coupled to the processor; the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the cell inter-frequency switching method, so that the cell inter-frequency switching method provided by the embodiment of the application can be realized.
The computer device may be a server, for example: the cloud server, or the above-mentioned computer device, may also be a computer device, for example: the embodiment of the present application is not limited to a specific form of a smart device such as a smart phone, a smart watch, a personal computer (Personal Computer; hereinafter referred to as a PC), a notebook computer, or a tablet computer.
Fig. 7 illustrates a block diagram of an exemplary computer device 52 suitable for use in implementing embodiments of the present application. The computer device 52 shown in fig. 7 is merely an example, and should not be construed as limiting the functionality and scope of use of embodiments of the present application.
As shown in fig. 7, the computer device 52 is in the form of a general purpose computing device. Components of computer device 52 may include, but are not limited to: one or more processors or processing units 56, a system memory 78, a bus 58 that connects the various system components, including the system memory 78 and the processing units 56.
Bus 58 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include industry Standard architecture (Industry Standard Architecture; hereinafter ISA) bus, micro channel architecture (Micro Channel Architecture; hereinafter MAC) bus, enhanced ISA bus, video electronics standards Association (Video Electronics Standards Association; hereinafter VESA) local bus, and peripheral component interconnect (Peripheral Component Interconnection; hereinafter PCI) bus.
Computer device 52 typically includes a variety of computer system readable media. Such media can be any available media that is accessible by computer device 52 and includes both volatile and nonvolatile media, removable and non-removable media.
The system memory 78 may include computer system readable media in the form of volatile memory, such as random access memory (Random Access Memory; hereinafter: RAM) 70 and/or cache memory 72. The computer device 52 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, the storage system 74 may be used to read from or write to non-removable, nonvolatile magnetic media (not shown in FIG. 7, commonly referred to as a "hard disk drive"). Although not shown in fig. 7, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a compact disk read only memory (Compact Disc Read Only Memory; hereinafter CD-ROM), digital versatile read only optical disk (Digital Video Disc Read Only Memory; hereinafter DVD-ROM), or other optical media) may be provided. In such cases, each drive may be coupled to bus 58 through one or more data media interfaces. Memory 78 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of embodiments of the application.
A program/utility 80 having a set (at least one) of program modules 82 may be stored, for example, in the memory 78, such program modules 82 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules 82 generally perform the functions and/or methods of the embodiments described herein.
The computer device 52 can also communicate with one or more external devices 54 (e.g., keyboard, pointing device, display 64, etc.), one or more devices that enable a user to interact with the computer device 52, and/or any device (e.g., network card, modem, etc.) that enables the computer device 52 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 62. Also, the computer device 52 may communicate with one or more networks such as a local area network (Local Area Network; hereinafter: LAN), a wide area network (Wide Area Network; hereinafter: WAN) and/or a public network such as the Internet via the network adapter 60. As shown in fig. 7, the network adapter 60 communicates with other modules of the computer device 52 via the bus 58. It should be appreciated that although not shown in fig. 7, other hardware and/or software modules may be used in connection with computer device 52, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
The processing unit 56 executes various functional applications and data processing by running programs stored in the system memory 78, for example, to implement the cell inter-frequency handover method provided by the embodiment of the present application.
The embodiment of the application also provides a non-transitory computer readable storage medium, which stores computer instructions that cause the computer to execute the cell inter-frequency handover method.
The non-transitory computer readable storage media described above may employ any combination of one or more computer readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory; EPROM) or flash Memory, an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
Depending on the context, the word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to detection". Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the application.
Claims (8)
1. The method for switching different frequencies of a cell is characterized by comprising the following steps:
acquiring distance information between each user terminal under a current base station and the base station, wherein the distance information is acquired by triggering one or more of signal to interference plus noise ratio and packet loss ratio based on reference signal receiving power of a main service cell reported by the user terminal, wherein the user terminal comprises a terminal registered with a long-term evolution voice bearing service, and the main service cell comprises a time division duplex cell;
judging whether the inter-cell frequency switching is required according to the distance information;
selectively executing the process of cell inter-frequency switching according to the judging result so as to enable the corresponding user terminal to realize continuous coverage from the main service cell to an optimal neighbor cell according to the inter-frequency switching result, wherein the optimal neighbor cell comprises a frequency division duplex cell;
when the inter-cell frequency switching is executed, triggering the inter-system switching according to the correlation between the reference signal receiving power of the adjacent cell and the sequencing value of the adjacent cell in the cell switching process;
obtaining distance information between each user terminal under a current base station and the base station comprises the following steps:
and triggering the user terminal to report the distance information between the user terminal and the base station when one of the signal-to-interference-plus-noise ratio, the reference signal receiving power or the packet loss rate is lower than a corresponding preset early warning threshold.
2. The method according to claim 1, wherein the selectively performing the inter-cell handover according to the determination result, so that each ue can achieve continuous coverage from the primary serving cell to the best neighbor cell according to the inter-cell handover result, comprises:
when the judgment result is that the cell inter-frequency switching is needed,
sending a first control request signal to a corresponding user terminal so that the user terminal obtains neighbor cell measurement information according to the first control request signal;
acquiring an optimal neighbor cell corresponding to the user terminal according to the neighbor cell measurement information;
the neighbor cell measurement information comprises reference signal receiving power of each neighbor cell and switching parameters of each neighbor cell.
3. The method of claim 2, wherein the obtaining the best neighbor cell corresponding to the ue according to the neighbor cell measurement information includes:
acquiring the reference signal receiving power of each adjacent cell;
according to the comparison result of the reference signal received power and the first preset threshold value, screening each adjacent cell;
acquiring switching parameters of each neighboring cell after screening treatment;
and acquiring the optimal neighbor cell according to the switching parameters, wherein the optimal neighbor cell comprises one or more than one neighbor cells.
4. The method of claim 2, wherein the handover parameters comprise:
switching success rate, switching times, physical resource block utilization rate and interference intensity value.
5. The method according to claim 2, wherein after the obtaining the best neighbor cell corresponding to the ue according to the neighbor cell measurement information, the method further comprises:
and sending a second control request signal to the user terminal so that the user terminal can execute the process of switching from the main service cell to the optimal neighbor cell according to the second control request signal.
6. A cell different frequency switching device, the device comprising:
the first acquisition module is used for acquiring distance information between each user terminal under a current base station and the base station, wherein the distance information is triggered and acquired based on one or more of reference signal receiving power, signal-to-interference-plus-noise ratio and packet loss rate of a main serving cell reported by the user terminal, wherein the user terminal comprises a terminal registered with a long-term evolution voice bearing service, and the main serving cell comprises a time division duplex cell;
the first judging module is connected with the first acquiring module and is used for judging whether the cell inter-frequency switching is required according to the distance information;
the first execution module is connected with the first judgment module and is used for selectively executing the process of cell inter-frequency switching according to the judgment result so as to enable the corresponding user terminal to realize continuous coverage from the main service cell to the optimal neighbor cell according to the inter-frequency switching result, wherein the optimal neighbor cell comprises a frequency division duplex cell; the method is also used for triggering cross-system switching according to the correlation between the reference signal receiving power of the adjacent cell and the ordering value of the adjacent cell in the cell switching process when the cell inter-frequency switching is executed;
the first obtaining module is specifically configured to trigger the ue to report the distance information between the ue and the base station when one of the signal-to-interference-plus-noise ratio, the reference signal received power, or the packet loss rate is lower than a corresponding preset early warning threshold.
7. A computer device, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor;
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1-5.
8. A non-transitory computer readable storage medium storing computer instructions that cause the computer to perform the method of any one of claims 1 to 5.
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| CN115707042A (en) * | 2021-08-03 | 2023-02-17 | 中国电信股份有限公司 | Non-terrestrial network switching method and device, storage medium and electronic equipment |
| CN114786223B (en) * | 2022-05-11 | 2023-05-30 | 大连市共进科技有限公司 | Frequency point switching method and device, mobile base station system and storage medium |
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