CN112218343A - Cell different frequency switching method and device and computer equipment - Google Patents
Cell different frequency switching method and device and computer equipment Download PDFInfo
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Abstract
The embodiment of the application provides a method, a device and computer equipment for cell pilot frequency switching, 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 cell different frequency switching is needed or not according to the distance information; and selectively executing the processing of cell pilot 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 adjacent cell according to the pilot frequency switching result. Therefore, cross-system switching can be triggered in a correlated manner in the cell switching process, so that more pilot frequency adjacent cells can be selected as main service cells, cell switching is optimized, and switching reliability is improved.
Description
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a cell pilot frequency handover method, apparatus, and computer device.
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 (TDD) mode and a Frequency Division Duplex (FDD) mode, i.e. two modes used by many mobile users; in addition, with the overall construction and development of mobile communication technology, Voice over Long-Term Evolution (VoLTE) service has also been gradually accepted by the majority of mobile users.
Currently, in order to ensure the Continuity of the Voice service of VoLTE, a dual-mode Single-standby wireless Voice Call Continuity (SRVCC) scheme is proposed. However, in the SRVCC solution, only Reference Signal Receiving Power (RSRP) of the main serving cell and the neighboring cell is 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 that the VoLTE user is degraded to a Global System For Mobile Communications (GSM) service, and the experience of the user is reduced.
Therefore, how to provide a method can ensure the continuity of the VoLTE service of a User terminal (User Equipment; hereinafter, referred to as UE) under the current LTE system, and improve the User experience, and has a vital significance.
Disclosure of Invention
The embodiment of the application provides a cell pilot frequency switching method, a cell pilot frequency switching device and computer equipment, which can trigger cross-mode switching according to the relevance between the RSRP value of a neighboring cell and the sequencing value of the neighboring cell in the cell switching process, so that more pilot frequency neighboring cells can be selected as main service cells, cell switching is optimized, and switching reliability is improved.
In a first aspect, an embodiment of the present application provides a cell inter-frequency handover method, including:
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 service cell reported by the user terminal;
judging whether cell different frequency switching is needed or not according to the distance information;
and selectively executing the processing of cell pilot 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 adjacent cell according to the pilot frequency switching result.
In a possible implementation manner, the selectively performing, according to the determination result, the processing of cell pilot frequency handover so that each ue realizes continuous coverage from the primary serving cell to the best neighboring cell according to the result of pilot frequency handover includes:
when the judgment result is that the cell different frequency switching is required,
sending a first control request signal to the corresponding user terminal so that the user terminal can acquire adjacent 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 includes the reference signal received power of each neighbor cell and the handover parameter of each neighbor cell.
In a possible implementation manner, the obtaining the optimal neighboring cell corresponding to the user terminal according to the neighboring cell measurement information includes:
acquiring the reference signal receiving power of each adjacent cell;
screening each adjacent cell according to the comparison result of the reference signal receiving power and a first preset threshold;
acquiring the switching parameter of each neighboring cell after screening processing;
and acquiring the optimal adjacent cells according to the switching parameters, wherein the optimal adjacent cells comprise one or more than one.
In a possible implementation manner, the handover parameter includes:
switching success rate, switching times, physical resource block utilization rate and interference intensity value.
In a possible implementation manner, after obtaining the optimal 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 executes the processing of switching from the main service cell to the optimal adjacent cell according to the second control request signal.
In a possible implementation manner, the user equipment includes a terminal that has registered a long term evolution voice bearer service.
In a possible implementation manner, the primary serving cell includes a time division duplex cell, and the best neighbor cell includes a frequency division duplex cell.
In a second aspect, an embodiment of the present application further provides a cell inter-frequency handover apparatus, including:
a first obtaining module, configured to obtain distance information between each user equipment in a current base station and the base station, where the distance information is triggered and obtained based on one or more of reference signal received power, signal-to-interference-plus-noise ratio, and packet loss ratio of a main serving cell reported by the user equipment;
the first judging module is connected with the first acquiring module and used for judging whether cell different frequency switching is needed or not according to the distance information;
and the first execution module is connected with the first judgment module and used for selectively executing the processing of cell pilot 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 adjacent cell according to the result of pilot frequency switching.
In a third aspect, an embodiment of the present application further provides a computer device, 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 calls the program instructions to execute the cell inter-frequency handover method.
In a fourth aspect, an embodiment of the present application further provides a non-transitory computer-readable storage medium storing computer instructions, where the computer instructions cause the computer to execute the cell inter-frequency handover method.
In the above technical solution, after the distance information between each user terminal under the current base station and the base station is obtained, whether cell pilot frequency switching is required is determined according to the distance information, and then the process of cell pilot frequency switching is selectively executed according to the determination result, so that the corresponding user terminal realizes continuous coverage from the main serving cell to the best neighbor cell according to the result of pilot frequency switching. Therefore, cross-mode switching can be triggered according to the relevance between the RSRP value of the adjacent cell and the sequencing value of the adjacent cell in the cell switching process, so that more pilot frequency adjacent cells can be selected as the main service cell, cell switching is optimized, and switching reliability is improved.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart illustrating a method for inter-cell frequency handover according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating another embodiment of a method for inter-cell frequency handover according to the present application;
fig. 3 is a flowchart illustrating a method for inter-frequency handover in a cell according to another embodiment of the present invention;
fig. 4 is a schematic connection structure diagram of an embodiment of a cell inter-frequency handover apparatus according to the present application;
fig. 5 is a schematic connection structure diagram of another embodiment of a cell inter-frequency handover apparatus according to the present application;
fig. 6 is a schematic connection structure diagram of a cell pilot frequency switching device according to still another embodiment of the present application;
FIG. 7 is a schematic structural diagram of an embodiment of a computer apparatus according to the present application.
Detailed Description
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of 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, the method includes:
s101: the method comprises the steps of obtaining distance information between each user terminal under a current base station and the base station, wherein the distance information is triggered and obtained based on one or more of reference signal receiving power, signal to interference plus noise ratio and packet loss rate of a main service cell reported by the user terminal.
Specifically, the User Equipment is a Terminal Equipment under the coverage of the base Station, and the Terminal Equipment may be referred to as a Terminal, a User Equipment (UE), a Mobile Station (MS), or a Mobile Terminal (MT). The terminal equipment can be a mobile phone, a tablet, a computer with a wireless transceiving function, virtual reality terminal equipment, augmented reality terminal equipment, a wireless terminal in industrial control and the like.
Specifically, the distance information of the present application can be triggered and acquired based on the following three ways:
the first method is as follows:
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 the main service cell reported by the user terminal, and if so, the current base station triggers the distance information between the user terminal and the base station;
specifically, the first warning threshold may be set according to implementation requirements during specific implementation, and the size of the first warning threshold is not limited in this embodiment, for example, the first warning threshold may be-95 dbm.
The second method comprises the following steps:
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 if so, triggers the distance information between the user terminal and the base station.
The third method comprises the following steps:
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 if so, triggers the distance information between the user terminal and the base station.
Similarly, the second early warning threshold and the third early warning threshold may also be set by themselves according to implementation requirements, 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 present application may determine the distance from the base station to the user terminal based on the time advance related in the measurement report reported by the user terminal; or,
the embodiment of the application can also determine a first azimuth angle of the user terminal based on a Signal arrival angle related in a measurement report reported by the user terminal, and then determine a distance between the mobile terminal and the base station according to Reference Signal Receiving Power (RSRP) of the main serving cell and RSRP of a neighboring cell extracted in the measurement report.
S102: and judging whether the cell different frequency switching is needed or not according to the distance information.
Similarly, the distance information may reflect a distance between the ue and the base station, and in the embodiment of the present application, when the distance information is greater than or equal to 1 km, it is determined that there is a risk that the network cannot cover if the ue is always in the current cell; therefore, it is necessary to determine whether cell inter-frequency handover is necessary according to the distance information.
S103: and selectively executing the processing of cell pilot 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 adjacent cell according to the pilot frequency switching result.
Specifically, referring to fig. 2, S101 shown in fig. 1 of the present application may include:
s201: and when the judgment result is that the cell pilot frequency switching is required, sending a first control request signal to the corresponding user terminal so that the user terminal can acquire the 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 includes the reference signal received power of each neighbor cell and the handover parameter of each neighbor cell.
Thus, referring to fig. 3, the step S202 includes the following steps:
s301: and acquiring the reference signal receiving power of each adjacent cell.
S302: and screening each adjacent cell according to the comparison result of the reference signal receiving power and a first preset threshold value.
S303: and acquiring the switching parameters of each adjacent cell after the screening processing.
S304: and acquiring the optimal adjacent cells according to the switching parameters, wherein the optimal adjacent cells comprise one or more than one.
In the above S301 to S304, the RSRP of the neighboring cell may be obtained according to the measurement report reported by the user terminal, in the embodiment of the present application, the neighboring cell to be switched is preliminarily screened according to the RSRP of the neighboring cell, and then the best neighboring cell is selected according to the switching parameter and switched, so that the switching efficiency is improved.
Specifically, the handover parameter 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 cell based on formula one:
Resulti＝Ranki1+Ranki2+Ranki3+Ranki4formula (1)
In the above formula (1), Ranki1The ranking value, Rank, of each adjacent cell corresponding to the switching success rate of the adjacent cellsi2Rank, the Rank of each neighbor cell corresponding to the number of handovers of the neighbor celli3The Rank value of each adjacent cell corresponding to the physical resource block utilization rate of the adjacent cells is representedi4The sequencing value, Result, of each adjacent cell corresponding to the interference strength value of the adjacent cell is representediRepresenting the obtained final sequencing value of the adjacent cell;
among them, for Ranki1When the switching success rate is larger, Rank is carried outi1The smaller; for Ranki2When the switching times are higher, Rank is giveni2The smaller; for Ranki3When the physical resource block utilization rate is larger, Rank is carried outi3The smaller; for Ranki4When the interference strength value is lower, Rank is carried outi4The smaller.
Specifically, the best neighbor cell in the embodiment of the present application may be the neighbor cell with the smallest final ranking value; or,
the best neighbor cell in the embodiment of the application can also be the neighbor cell with the minimum first three ranking values, so that the situation that when the user terminal cannot be switched to the neighbor cell with the minimum ranking value due to the occurrence of the neighbor cell, the user terminal can still continue to switch to other neighbor cells can be avoided, and the switching success rate is improved.
Specifically, after S202 in the embodiment of the present application, the method further includes:
and sending a second control request signal to the user terminal so that the user terminal executes the processing of switching from the main service cell to the optimal adjacent cell according to the second control request signal.
Specifically, the user equipment in this embodiment includes a terminal that has registered a long term evolution voice bearer service.
Specifically, the primary serving cell in this embodiment of the present application includes a Time Division Duplex (TDD) cell, and the best neighbor cell includes a Frequency Division Duplex (FDD) cell. The cell different frequency switching method is suitable for switching the user terminal registered with the voice service from the TDD cell to the FDD cell, so that the network performance can be improved by fully utilizing the coverage characteristic of the FDD cell.
According to the cell pilot frequency switching method, after distance information between each user terminal under the current base station and the base station is acquired, whether cell pilot frequency switching is needed or not is judged according to the distance information, and then the cell pilot frequency switching is selectively executed according to the judgment result, so that the corresponding user terminal can realize continuous coverage from the main service cell to the optimal adjacent cell according to the pilot frequency switching result. Therefore, cross-mode switching can be triggered according to the relevance between the RSRP value of the adjacent cell and the sequencing value of the adjacent cell in the cell switching process, so that more pilot frequency adjacent cells can be selected as the main service cell, cell switching is optimized, and switching reliability is improved.
Fig. 4 is a cell inter-frequency handover apparatus according to an embodiment of the present application, and as shown in fig. 4, the apparatus may include: the device comprises 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 user terminal in the current base station and the base station, where the distance information is triggered and obtained based on one or more of reference signal received power, signal to interference plus noise ratio, and packet loss ratio of a main serving cell reported by the user terminal.
Specifically, the User Equipment is a Terminal Equipment under the coverage of the base Station, and the Terminal Equipment may be referred to as a Terminal, a User Equipment (UE), a Mobile Station (MS), or a Mobile Terminal (MT). The terminal equipment can be a mobile phone, a tablet, a computer with a wireless transceiving function, virtual reality terminal equipment, augmented reality terminal equipment, a wireless terminal in industrial control and the like.
Specifically, the distance information of the present application can be triggered and acquired based on the following three ways:
the first method is as follows:
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 the main service cell reported by the user terminal, and if so, the current base station triggers the distance information between the user terminal and the base station;
specifically, the first warning threshold may be set according to implementation requirements during specific implementation, and the size of the first warning threshold is not limited in this embodiment, for example, the first warning threshold may be-95 dbm.
The second method comprises the following steps:
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 if so, triggers the distance information between the user terminal and the base station.
The third method comprises the following steps:
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 if so, triggers the distance information between the user terminal and the base station.
Similarly, the second early warning threshold and the third early warning threshold may also be set by themselves according to implementation requirements, 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 present application may determine the distance from the base station to the user terminal based on the time advance related in the measurement report reported by the user terminal; or,
the embodiment of the application can also determine a first azimuth angle of the user terminal based on a Signal arrival angle related in a measurement report reported by the user terminal, and then determine a distance between the mobile terminal and the base station according to Reference Signal Receiving Power (RSRP) of the main serving cell and RSRP of a neighboring cell extracted in the measurement report.
The first judging module 12 is configured to judge whether cell inter-frequency handover needs to be performed according to the distance information.
Similarly, the distance information may reflect a distance between the ue and the base station, and in the embodiment of the present application, when the distance information is greater than or equal to 1 km, it is determined that there is a risk that the network cannot cover if the ue is always in the current cell; therefore, it is necessary to determine whether cell inter-frequency handover is necessary according to the distance information.
The first executing module 13 is configured to selectively execute a process of cell pilot frequency handover according to a determination result, so that the corresponding user terminal realizes continuous coverage from the primary serving cell to the best neighboring cell according to the result of pilot frequency handover.
Specifically, referring to fig. 5, when the determination result of the first determining module 12 is that the cell inter-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 the corresponding user terminal, so that the user terminal obtains neighboring cell measurement information according to the first control request signal.
The first obtaining unit 15 is configured to obtain the optimal neighboring cell corresponding to the user terminal according to the neighboring cell measurement information.
The neighbor cell measurement information includes the reference signal received power of each neighbor cell and the handover parameter of each neighbor cell.
Specifically, referring to fig. 6, the first obtaining 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 obtaining subunit 18 is configured to obtain the handover parameter of each neighboring cell after the screening processing.
The third obtaining subunit 19 is configured to obtain the optimal neighboring cell according to the handover parameter, where the optimal neighboring cell includes one or more optimal neighboring cells.
Specifically, the first obtaining subunit 16 may obtain RSRP of the neighboring cell according to a measurement report reported by the user terminal, and in the embodiment of the present application, the neighboring cell to be switched is preliminarily screened according to the RSRP of the neighboring cell, and then the best neighboring cell is selected according to the switching parameter and is switched, so that the switching efficiency is improved.
Specifically, the handover parameter 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 cell based on formula one:
Resulti＝Ranki1+Ranki2+Ranki3+Ranki4formula (1)
In the above formula I, Ranki1The ranking value, Rank, of each adjacent cell corresponding to the switching success rate of the adjacent cellsi2Rank, the Rank of each neighbor cell corresponding to the number of handovers of the neighbor celli3Indicating neighbouring zonesRanking value, Rank, in each neighbor cell corresponding to the physical resource block utilizationi4The sequencing value, Result, of each adjacent cell corresponding to the interference strength value of the adjacent cell is representediRepresenting the obtained final sequencing value of the adjacent cell;
among them, for Ranki1When the switching success rate is larger, Rank is carried outi1The smaller; for Ranki2When the switching times are higher, Rank is giveni2The smaller; for Ranki3When the physical resource block utilization rate is larger, Rank is carried outi3The smaller; for Ranki4When the interference strength value is lower, Rank is carried outi4The smaller.
Specifically, the best neighbor cell in the embodiment of the present application may be the neighbor cell with the smallest final ranking value; or,
the best neighbor cell in the embodiment of the application can also be the neighbor cell with the minimum first three ranking values, so that the situation that when the user terminal cannot be switched to the neighbor cell with the minimum ranking value due to the occurrence of the neighbor cell, the user terminal can still continue to switch to other neighbor cells can be avoided, and the switching success rate is improved.
Specifically, the above apparatus of the present application may further include: a first sending module;
the first sending module is configured to send a second control request signal to the user equipment, so that the user equipment performs processing for switching from the primary serving cell to the best neighboring cell according to the second control request signal.
Specifically, the user equipment in this embodiment includes a terminal that has registered a long term evolution voice bearer service.
Specifically, the primary serving cell in this embodiment of the present application includes a Time Division Duplex (TDD) cell, and the best neighbor cell includes a Frequency Division Duplex (FDD) cell.
In the above cell pilot frequency switching apparatus of the present application, after the first obtaining module 11 obtains the distance information between each user terminal under the current base station and the base station, the first determining module 12 determines whether cell pilot frequency switching is required according to the distance information, and then the first executing module 13 selectively executes the processing of cell pilot frequency switching according to the determination result, so that the corresponding user terminal realizes continuous coverage from the main serving cell to the best neighbor cell according to the result of pilot frequency switching. Therefore, cross-mode switching can be triggered according to the relevance between the RSRP value of the adjacent cell and the sequencing value of the adjacent cell in the cell switching process, so that more pilot frequency adjacent cells can be selected as the main service cell, cell switching is optimized, and switching reliability is improved.
FIG. 7 is a block diagram of one embodiment of a computer device, 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 pilot frequency switching method, so that the cell pilot 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 computer device may also be a computer device, for example: the present invention relates to a smart device, and more particularly, to a smart device such as a smart phone, a smart watch, a Personal Computer (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 only an example and should not bring any limitation to the function and scope of use of the embodiments of the present application.
As shown in FIG. 7, computer device 52 is in the form of a general purpose computing device. The components of computer device 52 may include, but are not limited to: one or more processors or processing units 56, a system memory 78, and a bus 58 that couples various system components including the system memory 78 and the processing unit 56.
Computer device 52 typically includes a variety of computer system readable media. Such media may 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 (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 and write to non-removable, nonvolatile magnetic media (not shown in FIG. 7, commonly referred to as a "hard drive"). Although not shown in FIG. 7, a disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a Compact disk Read Only Memory (CD-ROM), a Digital versatile disk Read Only Memory (DVD-ROM), or other optical media) may be provided. In these cases, each drive may be connected to the bus 58 by 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 that are 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 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 of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 82 generally perform the functions and/or methodologies of the embodiments described herein.
The computer device 52 may also communicate with one or more external devices 54 (e.g., keyboard, pointing device, display 64, etc.), with one or more devices that enable a user to interact with the computer device 52, and/or with any devices (e.g., network card, modem, etc.) that enable the computer device 52 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 62. Also, computer device 52 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public Network such as the Internet) via Network adapter 60. As shown in FIG. 7, the network adapter 60 communicates with the 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 conjunction with the computer device 52, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
The processing unit 56 executes programs stored in the system memory 78 to execute various functional applications and data processing, for example, implement the cell inter-frequency handover method provided in the embodiment of the present application.
An embodiment of the present application further provides a non-transitory computer-readable storage medium, which stores computer instructions, where the computer instructions cause the computer to execute the cell inter-frequency handover method.
The non-transitory computer readable storage medium described above may take 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. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination 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 (EPROM), a 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 the context of 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.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, 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 thereof. 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 herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," 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 application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited 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 steps of a custom logic function or process, and alternate 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, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. A method for cell inter-frequency handover, the method comprising:
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 service cell reported by the user terminal;
judging whether cell different frequency switching is needed or not according to the distance information;
and selectively executing the processing of cell pilot 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 adjacent cell according to the pilot frequency switching result.
2. The method of claim 1, wherein the selectively performing the cell inter-frequency handover according to the determination result so that each ue achieves continuous coverage from the primary serving cell to the best neighbor according to the inter-frequency handover result comprises:
when the judgment result is that the cell different frequency switching is required,
sending a first control request signal to the corresponding user terminal so that the user terminal can acquire adjacent 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 includes the reference signal received power of each neighbor cell and the handover parameter 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 comprises:
acquiring the reference signal receiving power of each adjacent cell;
screening each adjacent cell according to the comparison result of the reference signal receiving power and a first preset threshold;
acquiring the switching parameter of each neighboring cell after screening processing;
and acquiring the optimal adjacent cells according to the switching parameters, wherein the optimal adjacent cells comprise one or more than one.
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 of claim 2, wherein after obtaining the optimal neighboring cell corresponding to the ue according to the neighboring cell measurement information, the method further comprises:
and sending a second control request signal to the user terminal so that the user terminal executes the processing of switching from the main service cell to the optimal adjacent cell according to the second control request signal.
6. The method of claim 1, wherein the user terminal comprises a terminal that is registered for long term evolution voice bearer service.
7. The method of claim 1, wherein the primary serving cell comprises a time division duplex cell and the best neighbor cell comprises a frequency division duplex cell.
8. An apparatus for inter-cell frequency handover, the apparatus comprising:
a first obtaining module, configured to obtain distance information between each user equipment in a current base station and the base station, where the distance information is triggered and obtained based on one or more of reference signal received power, signal-to-interference-plus-noise ratio, and packet loss ratio of a main serving cell reported by the user equipment;
the first judging module is connected with the first acquiring module and used for judging whether cell different frequency switching is needed or not according to the distance information;
and the first execution module is connected with the first judgment module and used for selectively executing the processing of cell pilot 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 adjacent cell according to the result of pilot frequency switching.
9. 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 to 7.
10. A non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the method of any one of claims 1 to 7.
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