CN115623556A - Frequency band searching method and device, mobile terminal and storage medium - Google Patents
Frequency band searching method and device, mobile terminal and storage medium Download PDFInfo
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Abstract
The embodiment of the invention provides a frequency band searching method, a frequency band searching device, a mobile terminal and a storage medium, and belongs to the technical field of communication. The method comprises the following steps: acquiring a first frequency band to be searched from a plurality of frequency bands supported by a mobile terminal; acquiring a second frequency band which is searched, wherein the second frequency band comprises at least one frequency band in a plurality of frequency bands supported by the mobile terminal; and determining a target frequency band which is not overlapped with the second frequency band from the first frequency band, and searching the target frequency band. The technical scheme of the embodiment of the invention can effectively shorten the time delay of the multi-band searching process.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a frequency band searching method and apparatus, a mobile terminal, and a storage medium.
Background
With the rapid development of communication technology, mobile terminals have generally entered into people's lives, and in order to ensure the communication function of mobile terminals, radio frequency technology is usually adopted in mobile terminals to realize the processes of transmitting and receiving signals of mobile terminals. The third Generation Partnership project (3 rd Generation Partnership project,3 gpp) plans a plurality of bands (Band) with different Band identifiers, each Band identifier has a corresponding spectrum range, and Absolute Frequency Channel numbers (ARFCNs) of different bands are different, but different bands may overlap, so that a certain Band belongs to a plurality of bands. In the process of selecting the target cell, the mobile terminal searches the supported multiple frequency bands frequency by frequency, however, the existence of the overlapped frequency bands can cause the problem of repeated searching, so that the time delay of the multi-frequency band searching process is longer, and the requirement of 5G low time delay is not met.
Disclosure of Invention
The embodiment of the invention provides a frequency band searching method, a frequency band searching device, a mobile terminal and a storage medium, and aims to effectively shorten the communication time delay in a multi-frequency band searching process and greatly improve the user experience.
In a first aspect, an embodiment of the present invention provides a frequency band searching method, including:
acquiring a first frequency band to be searched from a plurality of frequency bands supported by a mobile terminal;
acquiring a second frequency band which is searched, wherein the second frequency band comprises at least one frequency band in a plurality of frequency bands supported by the mobile terminal;
and determining a target frequency band which is not overlapped with the second frequency band from the first frequency band, and searching the target frequency band.
In a second aspect, an embodiment of the present invention further provides a frequency band searching apparatus, where the frequency band searching apparatus includes a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for implementing connection communication between the processor and the memory, where when the computer program is executed by the processor, the steps of any one of the frequency band searching methods provided in the embodiments of the present invention are implemented.
In a third aspect, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for implementing connection communication between the processor and the memory, where when the computer program is executed by the processor, the steps of any frequency band searching method provided in the embodiment of the present invention are implemented.
In a fourth aspect, an embodiment of the present invention further provides a storage medium for a computer-readable storage, where the storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the steps of any one of the frequency band searching methods provided in the embodiment of the present invention.
The embodiment of the invention provides a frequency band searching method, a frequency band searching device, a mobile terminal and a storage medium, wherein a first frequency band to be searched is acquired from a plurality of frequency bands supported by the mobile terminal; acquiring a second frequency band which is searched, wherein the second frequency band comprises at least one frequency band in a plurality of frequency bands supported by the mobile terminal; the target frequency band which is not overlapped with the second frequency band is determined from the first frequency band, the target frequency band is searched, the problem of repeated searching of the frequency band due to the existence of the overlapped frequency band is solved, the time delay of a multi-frequency band searching process is effectively shortened, and the user experience is greatly improved.
Drawings
Fig. 1 is a schematic flowchart illustrating steps of a frequency band searching method according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating sub-steps of the frequency band searching method of FIG. 1;
fig. 3 is a schematic flowchart illustrating steps of another frequency band searching method according to an embodiment of the present invention;
fig. 4 is a block diagram schematically illustrating a structure of a frequency band searching apparatus according to an embodiment of the present invention;
fig. 5 is a block diagram illustrating a structure of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 invention.
The flowcharts shown in the figures are illustrative only and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention 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.
The embodiment of the invention provides a frequency band searching method, a frequency band searching device, a mobile terminal and a storage medium. The frequency band searching method can be applied to a frequency band searching device or a mobile terminal, the mobile terminal can be an electronic device such as a mobile phone, a tablet computer, a notebook computer, a desktop computer, a personal digital assistant and a wearable device, the frequency band searching device can be arranged inside the mobile terminal, and the embodiment is not limited to this.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating steps of a frequency band searching method according to an embodiment of the present invention.
As shown in fig. 1, the frequency band searching method includes steps S101 to S103.
Step S101, a first frequency band to be searched is obtained from a plurality of frequency bands supported by the mobile terminal.
It should be noted that, for the domestic 5G network, the frequency bands (bands) used by different operators are different, and the frequency bands that can be supported by mobile terminals of different brands and different models are also different. In addition, the mobile terminal performs frequency-by-frequency search on a plurality of supported frequency bands in the process of selecting the target cell. Therefore, when performing frequency band searching, it is necessary to acquire one frequency band from multiple frequency bands supported by the mobile terminal as a first frequency band to be searched, and after the searching of the first frequency band is completed, continue to acquire another frequency band from the multiple frequency bands supported by the mobile terminal as the first frequency band to be searched until the frequency-by-frequency searching of the full frequency band is completed.
For example, when the mobile terminal is powered on, and transmission with the network needs to be implemented, a multi-band search is performed, that is, a blind search process in which a physical layer of the mobile terminal performs a frequency-by-frequency search in a plurality of frequency bands supported by the mobile terminal is performed, and a frequency band to be searched is first acquired from the plurality of frequency bands supported by the mobile terminal. After searching at least one frequency band in the multiple frequency bands supported by the mobile terminal, determining a next search object, and continuously acquiring a first frequency band to be searched from the multiple frequency bands supported by the mobile terminal until the frequency-by-frequency search of the full frequency band is completed.
In one embodiment, as shown in fig. 2, step S101 includes: sub-step S1011 to sub-step S1012.
And a substep S1011, establishing a spectrum mapping table according to the plurality of frequency bands supported by the mobile terminal, wherein the spectrum mapping table is used for recording a mapping relation between the frequency band identifier and the frequency band.
In an embodiment, establishing a spectrum mapping table according to a plurality of frequency bands supported by a mobile terminal includes: acquiring frequency band identifiers of a plurality of frequency bands supported by the mobile terminal, and sequencing the frequency band identifiers according to a preset sequencing order; and recording the mapping relation between the arranged multiple frequency band identifications and the multiple frequency bands to obtain a frequency spectrum mapping table. The frequency band identifiers of the frequency band may be composed of letters and numbers, the frequency band identifiers are sorted according to the size of the numbers, the preset arrangement order may be an order arranged from large to small or an order arranged from small to large, and this embodiment is not particularly limited. And recording the mapping relation between the plurality of frequency band identifications and the plurality of frequency bands according to the sequencing sequence of the frequency band identifications to obtain a regularly arranged frequency spectrum mapping table, so that the full-frequency-band frequency-by-frequency search is facilitated.
For example, please refer to table 1. It is assumed that the multiple frequency bands supported by the mobile terminal include n77, n78, n70, and n71, where the frequency band corresponding to the frequency band identifier n77 is 3300MHz-4200MHz (megahertz), and the frequency band corresponding to the frequency band identifier n78 is 3300MHz-3800MHz. The frequency band corresponding to the frequency band identifier n70 is 1695MHz-1710MHz, and the frequency band corresponding to the frequency band identifier n71 is 663MHz-698MHz. The frequency band identifiers n77, n78, n70 and n71 are arranged according to the order of arrangement from large to small, so as to obtain the spectrum mapping table shown in table 1.
TABLE 1
| Frequency band identification | Frequency band |
| n78 | 3300MHz–3800MHz |
| n77 | 3300MHz–4200MHz |
| n71 | 663MHz–698MHz |
| n70 | 1695MHz–1710MHz |
In an embodiment, establishing a spectrum mapping table according to a plurality of frequency bands supported by a mobile terminal includes: sequencing the plurality of frequency bands according to a preset sequencing sequence; and recording the frequency band identification corresponding to each of the arranged frequency bands to obtain a frequency spectrum mapping table between the frequency band identification and the frequency band. Each frequency band represents a frequency spectrum range, a maximum frequency spectrum value and a minimum frequency spectrum value exist in the frequency spectrum range, the frequency bands can be sequenced according to the maximum frequency spectrum values or the minimum frequency spectrum values of the frequency bands, a preset sequencing sequence is arranged from large to small or from small to large, optionally, the frequency bands are sequenced according to the sequence in which the maximum frequency spectrum values of the frequency bands are arranged from small to large, frequency band identifiers corresponding to the arranged frequency bands are recorded, a frequency spectrum mapping table between the frequency band identifiers and the frequency bands is obtained, and the first frequency band to be searched can be selected from the frequency bands supported by the mobile terminal frequency by frequency spectrum mapping table.
And a substep S1012, selecting a first frequency band to be searched from the plurality of frequency bands according to the arrangement sequence of the plurality of frequency band identifiers in the frequency spectrum mapping table.
It should be noted that, the frequency band identifiers in the frequency spectrum mapping table are arranged according to a preset arrangement sequence, and the first frequency band to be searched is selected from the frequency bands according to the arrangement sequence of the frequency band identifiers in the frequency spectrum mapping table, which is beneficial to selecting the first frequency band to be searched from the frequency bands supported by the mobile terminal frequency by frequency, thereby ensuring that the full-frequency-band search is completed, avoiding searching the overlapped frequency bands, and effectively reducing the communication delay.
For example, as shown in table 1, after the frequency band 3300MHz-3800MHz corresponding to the frequency band identifier n78 is searched, the first frequency band to be searched is continuously obtained from the multiple frequency bands supported by the mobile terminal, and according to the arrangement sequence of the multiple frequency band identifiers in table 1, the frequency band 3300MHz-4200MHz corresponding to the frequency band identifier n77 is selected as the first frequency band to be searched.
Step S102, a second frequency band which is searched is obtained, wherein the second frequency band comprises at least one frequency band in a plurality of frequency bands supported by the mobile terminal.
It should be noted that, when the first frequency band to be searched is selected, a second frequency band already having been searched already exists, and the second frequency band includes at least one frequency band of the plurality of frequency bands supported by the mobile terminal. In this embodiment, the second frequency band that has been searched needs to be acquired, so as to identify the overlapping frequency band between the first frequency band and the second frequency band in the subsequent process, and avoid searching the overlapping frequency band, thereby effectively shortening the time delay and improving the user experience.
In an embodiment, at least one frequency band which is searched is acquired from a plurality of frequency bands supported by a mobile terminal and is used as a searched frequency band; if the searched frequency band is one, taking the searched frequency band as a second frequency band; and if the searched frequency bands are multiple, combining the multiple searched frequency bands to obtain a second frequency band. As can be seen, the second frequency band includes at least one frequency band that has been searched in the multiple frequency bands supported by the mobile terminal, and when the number of the searched frequency bands is more than two, the more than two searched frequency bands need to be combined to obtain the second frequency band.
For example, after the frequency band 3300MHz-3800MHz corresponding to the frequency band identifier n78 is searched, the frequency band 3300MHz-4200MHz corresponding to the frequency band identifier n77 is selected as the first frequency band to be searched, and at this time, the second frequency band that has been searched is the frequency band 3300MHz-3800MHz corresponding to the frequency band identifier n78, and then the second frequency band 3300MHz-3800MHz that has been searched is obtained in this embodiment.
Illustratively, if the first frequency band is selected according to the order of the frequency band identifiers from small to large, as shown in table 1, after the search of the frequency bands corresponding to the frequency band identifiers n70 and n71 is completed, the frequency band 3300MHz-3800MHz corresponding to the frequency band identifier n78 is selected as the first frequency band to be searched, and the second frequency band whose search is completed at this time includes the frequency band 1695MHz-1710MHz corresponding to the frequency band identifier n70 and the frequency band 663MHz-698MHz corresponding to the frequency band identifier n 71.
Step S103, determining a target frequency band which is not overlapped with the second frequency band from the first frequency band, and searching the target frequency band.
It should be noted that, in the process of selecting a target cell, a current mobile terminal performs frequency-by-frequency search on a plurality of supported frequency bands, and overlapping frequency bands among the frequency bands may cause a problem of repeated search, so that a multi-band search process has a long delay. Therefore, the present embodiment determines a target frequency band that does not overlap with the second frequency band from the first frequency band, and searches for the target frequency band. The method avoids searching the overlapped frequency band, only searches the target frequency band which is not overlapped with the second frequency band in the first frequency band, can effectively shorten the communication time delay during multi-frequency band searching, and greatly improves the user experience.
In an embodiment, a target frequency band in the first frequency band, which does not overlap with the second frequency band, is determined according to a first minimum value and a first maximum value in the first frequency band and a second minimum value and a second maximum value in the second frequency band. The frequency Band identifier may also be composed of words and numbers, for example, the frequency range of Band77 is 3300MHz-4200MHz, the frequency range of Band78 is 3300MHz-3800MHz, and there is an overlap of frequency spectrums. Assuming that Band77 is a first frequency Band and Band78 is a second frequency Band, a target frequency Band in the first frequency Band, which does not overlap with the second frequency Band, can be determined to be 3800MHz-4200MHz according to a first minimum value and a first maximum value in a frequency range of Band77 and a second minimum value and a second maximum value in a frequency range of Band 78.
Determining a first minimum value and a first maximum value in a first frequency band, and determining a second minimum value and a second maximum value in a second frequency band; comparing the first minimum value with the second minimum value to obtain a first comparison result; comparing the first maximum value with the second maximum value to obtain a second comparison result; and determining a target frequency band which is not overlapped with the second frequency band from the first frequency band according to the first comparison result and the second comparison result. It should be noted that the first comparison result includes that the first minimum value is smaller than the second minimum value, and the second comparison result includes that the first maximum value is larger than the second maximum value; if the first minimum value is smaller than the second minimum value as a result of the first comparison, a frequency band between the first minimum value and the second minimum value may be taken as a first target frequency band; if the second comparison result is that the first maximum value is greater than the second maximum value, the frequency band between the first maximum value and the second maximum value can be taken as a second target frequency band; and obtaining the target frequency band according to the first target frequency band and/or the second target frequency band.
Illustratively, band77 is the first Band and Band78 is the second Band. The first minimum value and the first maximum value in the first frequency Band77 are 3300MHz and 4200MHz respectively, and the second minimum value and the second maximum value in the second frequency Band78 are 3800MHz and 4200MHz respectively; comparing the first minimum value with the second minimum value to obtain a second comparison result, wherein the first comparison result is that the first minimum value is smaller than the second minimum value, and the first target frequency band is 3300MHz-3800MHz between the first minimum value and the second minimum value; comparing the first maximum value with the second maximum value, wherein the first maximum value and the second maximum value are both 4200MHz, and the second comparison result shows that the first maximum value is equal to the second maximum value and the second target frequency band is empty; and adding the first target frequency band and the second target frequency band to obtain a target frequency band of 3300MHz-3800MHz.
In the frequency band searching method provided in the above embodiment, a first frequency band to be searched is obtained from a plurality of frequency bands supported by a mobile terminal; acquiring a second frequency band which is searched, wherein the second frequency band comprises at least one frequency band in a plurality of frequency bands supported by the mobile terminal; the target frequency band which is not overlapped with the second frequency band is determined from the first frequency band, the target frequency band is searched, the problem of repeated searching of the frequency band due to the existence of the overlapped frequency band is solved, the time delay of a multi-frequency band searching process is effectively shortened, and the user experience is greatly improved.
Referring to fig. 3, fig. 3 is a flowchart illustrating steps of another frequency band searching method according to an embodiment of the present invention.
As shown in fig. 3, the frequency band searching method includes steps S201 to S204.
Step S201, a first frequency band to be searched is obtained from a plurality of frequency bands supported by the mobile terminal.
It should be noted that, after at least one frequency band of the multiple frequency bands supported by the mobile terminal is searched, a next search object needs to be determined, that is, a first frequency band to be searched is acquired from the multiple frequency bands supported by the mobile terminal.
In one embodiment, a Public Land Mobile Network (PLMN) list broadcast by a base station is received; determining a target PLMN which is supported by the mobile terminal to perform multi-band overlapping spectrum identification from the PLMN list; and connecting the target PLMN, and acquiring a first frequency band to be searched from a plurality of frequency bands supported by the mobile terminal.
Step S202, obtaining a second frequency band that has completed the search, where the second frequency band includes at least one frequency band of a plurality of frequency bands supported by the mobile terminal.
The second frequency band for which the search is completed includes at least one frequency band among a plurality of frequency bands supported by the mobile terminal. In the embodiment, the searched second frequency band is obtained, so that the overlapped frequency band between the first frequency band and the second frequency band is identified in the subsequent process, and the overlapped frequency band is prevented from being searched, thereby effectively shortening the time delay and improving the user experience.
For example, after the frequency Band 2596 MHz-2620MHz corresponding to the frequency Band identifier Band38 is searched, 2496MHz-2690MHz corresponding to the frequency Band identifier Band41 is selected as the first frequency Band to be searched, and at this time, the second frequency Band that has been searched is the frequency Band 2570MHz-2620MHz corresponding to the frequency Band identifier Band38, and then the second frequency Band 2496MHz-2690MHz that has been searched is obtained in this embodiment.
Step S203, determining an overlapped frequency band between the first frequency band and the second frequency band.
In one embodiment, the current searching frequency band of the mobile terminal is continuously detected, and whether the current searching frequency band of the mobile terminal is switched or not is judged according to the detection result; if the current search frequency band of the mobile terminal is determined to be switched, two frequency bands before and after switching are obtained, and an overlapped frequency band between the two frequency bands before and after switching is determined; the overlapped frequency band is written into a radio frequency chip of the mobile terminal, so that the overlapped frequency band can be directly determined according to the two frequency bands before and after switching when multi-frequency band searching is subsequently executed, a target frequency band can be determined according to the overlapped frequency band and searching is facilitated, and time delay of a multi-frequency band searching process is shortened.
In one embodiment, the first frequency band is used as a first interval, and the second frequency band is used as a second interval; and acquiring an intersection between the first interval and the second interval to obtain an overlapped frequency band between the first frequency band and the second frequency band. For example, the first frequency Band is 2496MHz-2690MHz corresponding to the frequency Band identifier Band41, the second frequency Band is 2570MHz-2620MHz corresponding to the frequency Band identifier Band38, and the intersection processing is performed on the first frequency Band and the second frequency Band, so that the obtained overlapped frequency Band is 2570MHz-2620MHz.
In an embodiment, an overlapping frequency band between the first frequency band and the second frequency band is determined according to a first minimum value and a first maximum value in the first frequency band. Specifically, whether the first minimum value and/or the first maximum value is/are located in an interval range of the second frequency band is determined; if the first minimum value and the first maximum value are both located in the interval range of the second frequency band, taking the first frequency band as an overlapped frequency band between the first frequency band and the second frequency band; if the first minimum value is located in the interval range of the second frequency band and the first maximum value is not located in the interval range of the second frequency band, determining the overlapped frequency band as the frequency spectrum range from the first minimum value to the second maximum value of the second frequency band; and if the first minimum value is not located in the interval range of the second frequency band and the first maximum value is located in the interval range of the second frequency band, determining the overlapped frequency band as the frequency spectrum range from the second minimum value to the second minimum value of the second frequency band.
In an embodiment, the overlapping frequency band between the first frequency band and the second frequency band is determined according to a second minimum value and a second maximum value in the second frequency band. In a specific implementation manner, referring to the foregoing embodiment, if the second minimum value is located in the interval range of the first frequency band, and the second maximum value is not located in the interval range of the second frequency band, the overlapped frequency band is determined to be the frequency spectrum range from the second minimum value to the first maximum value of the first frequency band; and if the second minimum value is not located in the interval range of the first frequency band and the second maximum value is located in the interval range of the first frequency band, determining the overlapped frequency band as the frequency spectrum range from the first minimum value to the second maximum value of the first frequency band.
And S204, deleting the overlapped frequency band from the first frequency band to obtain a target frequency band which is not overlapped with the second frequency band, and searching the target frequency band.
After the overlapped frequency band between the first frequency band and the second frequency band is determined, the overlapped frequency band is deleted from the first frequency band, a target frequency band which is not overlapped with the second frequency band in the first frequency band is obtained, the target frequency band which is not overlapped with the second frequency band is searched, the overlapped frequency band is prevented from being searched, the problem of frequency band repeated search caused by the existence of the overlapped frequency band is solved, time delay is effectively shortened, and the requirement of 5G low time delay is met.
Illustratively, the first frequency Band is 2496MHz-2690MHz corresponding to the frequency Band identification Band41, the second frequency Band is 2570MHz-2620MHz corresponding to the frequency Band identification Band38, and the overlapping frequency Band between the first frequency Band and the second frequency Band is 2570MHz-2620MHz. And deleting the overlapped frequency band from the first frequency band to obtain target frequency bands of 2496MHz-2570MHz and 2620MHz-2690MHz, wherein the target frequency bands comprise two frequency bands which are not overlapped with the second frequency band.
In an embodiment, when the frequency-by-frequency search of the full frequency band is completed, the target frequency band is the last frequency band to be searched in the multiple frequency bands supported by the mobile terminal, and a cell with the strongest signal power may be selected according to the search result to perform connection, which is beneficial to ensuring the communication quality.
Exemplarily, a target frequency band is searched to obtain frequency point numbers issued by a plurality of cells; selecting a target frequency point number supported by the mobile terminal from the plurality of frequency point numbers, and acquiring signal power sent by a candidate cell corresponding to the target frequency point number; and selecting a target cell with the maximum signal power from the candidate cells according to the signal power transmitted by the candidate cells. The signal power is, for example, reference signal received power RSRP of the candidate cell.
In an embodiment, after searching for the target frequency band, the method further includes: acquiring signal powers of a plurality of working frequency spectrums searched in a target frequency band and a second frequency band; determining a plurality of candidate cells according to the plurality of signal powers; and selecting a target cell from the candidate cells according to a preset selection strategy. The target frequency band and the second frequency band both comprise a plurality of working frequency spectrums, signal power of the working frequency spectrums can be received in the searching process of the target frequency band and the second frequency band, the signal power is sent by a plurality of cells, candidate cells corresponding to a plurality of candidate signal powers larger than or equal to preset signal power are selected from the plurality of cells, and then the target cell is selected from the plurality of candidate cells for connection. It should be noted that the preset selection policy may be set according to an actual situation, for example, the preset selection policy is an S criterion or an R criterion of cell selection, which is not specifically limited in this embodiment.
The frequency band searching method provided by the embodiment obtains a first frequency band to be searched from a plurality of frequency bands supported by the mobile terminal; acquiring a second frequency band which is searched, wherein the second frequency band comprises at least one frequency band in a plurality of frequency bands supported by the mobile terminal; determining an overlapping frequency band between the first frequency band and the second frequency band; the overlapped frequency band is deleted from the first frequency band, the target frequency band which is not overlapped with the second frequency band is obtained, the target frequency band is searched, the problem of frequency band repeated searching caused by the existence of the overlapped frequency band is solved, the time delay of a multi-frequency band searching process is effectively shortened, and the user experience is greatly improved.
Referring to fig. 4, fig. 4 is a block diagram schematically illustrating a structure of a frequency band searching apparatus according to an embodiment of the present invention.
As shown in fig. 4, the frequency band searching apparatus 300 includes a processor 301 and a memory 302, and the processor 301 and the memory 302 are connected by a bus 303, such as an I2C (Inter-integrated Circuit) bus.
In particular, the processor 301 is configured to provide computational and control capabilities to support the operation of the entire frequency band search apparatus. The Processor 301 may be a Central Processing Unit (CPU), and the Processor 301 may also be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Specifically, the Memory 302 may be a Flash chip, a Read-Only Memory (ROM) magnetic disk, an optical disk, a usb disk, or a removable hard disk.
It will be understood by those skilled in the art that the structure shown in fig. 4 is only a block diagram of a part of the structure related to the embodiment of the present invention, and does not constitute a limitation to the frequency band searching apparatus to which the embodiment of the present invention is applied, and a specific frequency band searching apparatus may include more or less components than those shown in the figure, or combine some components, or have different component arrangements.
The processor is configured to run a computer program stored in the memory, and when executing the computer program, implement any one of the frequency band searching methods provided in the embodiments of the present invention.
In an embodiment, the processor is configured to run a computer program stored in the memory and to implement the following steps when executing the computer program:
acquiring a first frequency band to be searched from a plurality of frequency bands supported by a mobile terminal;
acquiring a second frequency band which is searched, wherein the second frequency band comprises at least one frequency band in a plurality of frequency bands supported by the mobile terminal;
and determining a target frequency band which is not overlapped with the second frequency band from the first frequency band, and searching the target frequency band.
In an embodiment, when the processor is configured to obtain the first frequency band to be searched from the multiple frequency bands supported by the mobile terminal, the processor is configured to:
establishing a frequency spectrum mapping table according to a plurality of frequency bands supported by the mobile terminal, wherein the frequency spectrum mapping table is used for recording the mapping relation between the frequency band identification and the frequency band;
and selecting a first frequency band to be searched from the plurality of frequency bands according to the arrangement sequence of the plurality of frequency band identifiers in the frequency spectrum mapping table.
In an embodiment, when implementing the establishing of the spectrum mapping table according to a plurality of frequency bands supported by the mobile terminal, the processor is configured to implement:
acquiring frequency band identifiers of a plurality of frequency bands supported by a mobile terminal, and sequencing the frequency band identifiers according to a preset arrangement sequence;
and recording the mapping relation between the arranged multiple frequency band identifications and the multiple frequency bands to obtain a frequency spectrum mapping table.
In an embodiment, the processor, when implementing the determining the target frequency band that does not overlap with the second frequency band from the first frequency band, is configured to implement:
determining an overlapping frequency band between the first frequency band and the second frequency band;
deleting the overlapped frequency band from the first frequency band to obtain a target frequency band which is not overlapped with the second frequency band; or
And determining a target frequency band which is not overlapped with the second frequency band in the first frequency band according to the first minimum value and the first maximum value in the first frequency band and the second minimum value and the second maximum value in the second frequency band.
In an embodiment, the processor, when implementing the determining, according to a first minimum value and a first maximum value in the first frequency band and a second minimum value and a second maximum value in the second frequency band, a target frequency band that does not overlap with the second frequency band in the first frequency band, is configured to implement:
determining a first minimum value and a first maximum value in the first frequency band, and determining a second minimum value and a second maximum value in the second frequency band;
comparing the first minimum value with the second minimum value to obtain a first comparison result;
comparing the first maximum value with the second maximum value to obtain a second comparison result;
and determining a target frequency band which is not overlapped with the second frequency band from the first frequency band according to the first comparison result and the second comparison result.
In an embodiment, when the obtaining of the second frequency band for which the search is completed is implemented, the processor is configured to implement:
acquiring at least one frequency band which is searched from a plurality of frequency bands supported by the mobile terminal as a searched frequency band;
if the searched frequency band is one, taking the searched frequency band as a second frequency band;
and if the searched frequency bands are multiple, combining the multiple searched frequency bands to obtain a second frequency band.
In an embodiment, after the searching for the target frequency band is implemented, the processor is further configured to implement:
acquiring signal powers of a plurality of working frequency spectrums searched in the target frequency band and the second frequency band;
determining a plurality of candidate cells according to a plurality of the signal powers;
and selecting a target cell from the candidate cells according to a preset selection strategy.
It should be noted that, as will be clearly understood by those skilled in the art, for convenience and brevity of description, the specific working process of the frequency band searching apparatus described above may refer to the corresponding process in the foregoing frequency band searching method embodiment, and details are not described herein again.
Referring to fig. 5, fig. 5 is a block diagram schematically illustrating a structure of a mobile terminal according to an embodiment of the present invention.
As shown in fig. 5, the mobile terminal 400 includes a processor 401 and a memory 402, and the processor 401 and the memory 402 are connected by a bus 403, such as an I2C (Inter-integrated Circuit) bus. The mobile terminal 400 may include the frequency band searching apparatus 300 shown in fig. 4.
In particular, the processor 401 may be configured to provide computational and control capabilities to support the operation of the entire frequency band searching apparatus. The Processor 401 may be a Central Processing Unit (CPU), and the Processor 401 may also be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Specifically, the Memory 402 may be a Flash chip, a Read-Only Memory (ROM) magnetic disk, an optical disk, a usb disk, or a removable hard disk.
It will be understood by those skilled in the art that the structure shown in fig. 5 is only a block diagram of a part of the structure related to the embodiment of the present invention, and does not constitute a limitation to the frequency band searching apparatus to which the embodiment of the present invention is applied, and a specific frequency band searching apparatus may include more or less components than those shown in the figure, or combine some components, or have different component arrangements.
The processor 401 is configured to run a computer program stored in a memory, and when executing the computer program, implement any one of the frequency band searching methods provided in the embodiments of the present invention.
Embodiments of the present invention further provide a storage medium for a computer-readable storage, where the storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the steps of any frequency band searching method provided in the embodiments of the present invention.
The storage medium may be an internal storage unit of the frequency band search apparatus described in the foregoing embodiment, for example, a hard disk or a memory of the frequency band search apparatus. The storage medium may also be an external storage device of the frequency band searching apparatus, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the frequency band searching apparatus.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as is well known to those skilled in the art.
It should be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A frequency band search method, comprising:
acquiring a first frequency band to be searched from a plurality of frequency bands supported by a mobile terminal;
acquiring a second frequency band which is searched, wherein the second frequency band comprises at least one frequency band in a plurality of frequency bands supported by the mobile terminal;
and determining a target frequency band which is not overlapped with the second frequency band from the first frequency band, and searching the target frequency band.
2. The method of claim 1, wherein the obtaining a first frequency band to be searched from a plurality of frequency bands supported by a mobile terminal comprises:
establishing a frequency spectrum mapping table according to a plurality of frequency bands supported by the mobile terminal, wherein the frequency spectrum mapping table is used for recording the mapping relation between the frequency band identification and the frequency band;
and selecting a first frequency band to be searched from the plurality of frequency bands according to the arrangement sequence of the plurality of frequency band identifiers in the frequency spectrum mapping table.
3. The method according to claim 2, wherein the establishing a frequency spectrum mapping table according to a plurality of frequency bands supported by the mobile terminal comprises:
acquiring frequency band identifiers of a plurality of frequency bands supported by a mobile terminal, and sequencing the frequency band identifiers according to a preset arrangement sequence;
and recording the mapping relation between the arranged frequency band identifications and the frequency bands to obtain a frequency spectrum mapping table.
4. The method of claim 1, wherein the determining the target band that does not overlap with the second band from the first band comprises:
determining an overlapping frequency band between the first frequency band and the second frequency band;
deleting the overlapped frequency band from the first frequency band to obtain a target frequency band which is not overlapped with the second frequency band; or
And determining a target frequency band which is not overlapped with the second frequency band in the first frequency band according to the first minimum value and the first maximum value in the first frequency band and the second minimum value and the second maximum value in the second frequency band.
5. The method according to claim 4, wherein the determining a target band in the first band that does not overlap with the second band according to a first minimum value and a first maximum value in the first band and a second minimum value and a second maximum value in the second band comprises:
determining a first minimum value and a first maximum value in the first frequency band, and determining a second minimum value and a second maximum value in the second frequency band;
comparing the first minimum value with the second minimum value to obtain a first comparison result;
comparing the first maximum value with the second maximum value to obtain a second comparison result;
and determining a target frequency band which is not overlapped with the second frequency band from the first frequency band according to the first comparison result and the second comparison result.
6. The method of claim 1, wherein the obtaining the second frequency band for which the search is completed comprises:
acquiring at least one frequency band which is searched from a plurality of frequency bands supported by the mobile terminal as a searched frequency band;
if the searched frequency band is one, taking the searched frequency band as a second frequency band;
and if the searched frequency bands are multiple, combining the multiple searched frequency bands to obtain a second frequency band.
7. The method for searching for a frequency band according to any one of claims 1 to 6, wherein after the searching for the target frequency band, the method further comprises:
acquiring signal powers of a plurality of working frequency spectrums searched in the target frequency band and the second frequency band;
determining a plurality of candidate cells according to a plurality of the signal powers;
and selecting a target cell from the candidate cells according to a preset selection strategy.
8. A frequency band searching apparatus, comprising a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for implementing a connection communication between the processor and the memory, wherein the computer program, when executed by the processor, implements the steps of the frequency band searching method according to any one of claims 1 to 7.
9. A mobile terminal, characterized in that the mobile terminal comprises a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for enabling a connection communication between the processor and the memory, wherein the computer program, when executed by the processor, implements the steps of the frequency band searching method according to any one of claims 1 to 7.
10. A storage medium for computer readable storage, wherein the storage medium stores one or more programs, which are executable by one or more processors to implement the steps of the frequency band search method of any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110803144.0A CN115623556A (en) | 2021-07-15 | 2021-07-15 | Frequency band searching method and device, mobile terminal and storage medium |
| PCT/CN2022/099960 WO2023284493A1 (en) | 2021-07-15 | 2022-06-20 | Frequency band search method and apparatus, mobile terminal, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110803144.0A CN115623556A (en) | 2021-07-15 | 2021-07-15 | Frequency band searching method and device, mobile terminal and storage medium |
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| CN115623556A true CN115623556A (en) | 2023-01-17 |
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| CN202110803144.0A Pending CN115623556A (en) | 2021-07-15 | 2021-07-15 | Frequency band searching method and device, mobile terminal and storage medium |
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| WO (1) | WO2023284493A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070082698A1 (en) * | 2005-10-06 | 2007-04-12 | Mediatek Inc. | Carrier search methods and related devices |
| US8023896B2 (en) * | 2007-11-14 | 2011-09-20 | Infineon Technologies Ag | Radio communication device, receiver controller of a radio communication device, and method for searching for a radio cell |
| US9125166B2 (en) * | 2011-11-15 | 2015-09-01 | Mediatek Inc. | Methods for performing an efficient network search and communications apparatuses utilizing the same |
| US8923858B2 (en) * | 2012-02-21 | 2014-12-30 | Marvell World Trade Ltd. | Parallel multi-RAT PLMN search |
| KR102035193B1 (en) * | 2013-03-11 | 2019-10-22 | 삼성전자주식회사 | Method for sherching for network an electronic device thereof |
| CN105704786A (en) * | 2014-11-28 | 2016-06-22 | 展讯通信（上海）有限公司 | Cell rapid searching method and mobile terminal |
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- 2021-07-15 CN CN202110803144.0A patent/CN115623556A/en active Pending
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