WO2023284493A1 - 频段搜索方法、装置、移动终端及存储介质 - Google Patents
频段搜索方法、装置、移动终端及存储介质 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000001228 spectrum Methods 0.000 claims description 42
- 238000013507 mapping Methods 0.000 claims description 30
- 238000004590 computer program Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 6
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- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000001174 ascending effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- the present disclosure relates to the technical field of communications, and in particular, to a frequency band search method, a frequency band search device, a mobile terminal and a storage medium.
- the 3rd Generation Partnership Project (3GPP) has planned a number of frequency bands (Bands) with different frequency band identifiers. Each frequency band identifier has its own corresponding spectrum range, and the absolute frequency point numbers (Absolute Radio Frequency) Channel Number, ARFCN) are different, but different frequency bands may overlap, resulting in a certain frequency band belonging to multiple frequency bands.
- ARFCN Absolute Radio Frequency Channel Number
- the present disclosure provides a frequency band search method, a frequency band search device, a mobile terminal and a storage medium, aiming at effectively shortening the communication time delay in a multi-band search process and greatly improving user experience.
- an embodiment of the present disclosure provides a frequency band search method, including: acquiring a first frequency band to be searched from multiple frequency bands supported by a mobile terminal; acquiring a second frequency band that has been searched, wherein the second frequency band Including at least one frequency band among the plurality of frequency bands supported by the mobile terminal; determining a target frequency band that does not overlap with the second frequency band from the first frequency band, and searching for the target frequency band.
- an embodiment of the present disclosure further provides a frequency band search device, the frequency band search device includes a processor, a memory, a computer program stored in the memory and executable by the processor, and used to implement the A data bus connecting and communicating between the processor and the memory, wherein when the computer program is executed by the processor, the steps of any frequency band search method provided by the embodiments of the present disclosure are realized.
- an embodiment of the present disclosure further provides a mobile terminal, the mobile terminal includes a processor, a memory, a computer program stored on the memory and executable by the processor, and a computer program for implementing the processor A data bus connecting and communicating with the memory, wherein when the computer program is executed by the processor, the steps of any frequency band search method provided by the embodiments of the present disclosure are implemented.
- an embodiment of the present disclosure further provides a storage medium for computer-readable storage, the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors , so as to implement the steps of any frequency band search method provided by the embodiments of the present disclosure.
- FIG. 1 is a schematic flow chart of the steps of a frequency band search method provided by an embodiment of the present disclosure
- Fig. 2 is a schematic flow chart of the sub-steps of the frequency band search method in Fig. 1;
- FIG. 3 is a schematic flowchart of steps of another frequency band search method provided by an embodiment of the present disclosure
- FIG. 4 is a schematic structural block diagram of a frequency band search device provided by an embodiment of the present disclosure.
- FIG. 5 is a schematic structural block diagram of a mobile terminal provided by an embodiment of the present disclosure.
- Embodiments of the present disclosure provide a frequency band search method, device, mobile terminal and storage medium.
- the frequency band search method can be applied to a frequency band search device or a mobile terminal
- the mobile terminal can be electronic equipment 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 search device can be placed in a Inside the mobile terminal, this embodiment does not specifically limit it.
- FIG. 1 is a schematic flowchart of steps of a frequency band search method provided by an embodiment of the present disclosure.
- the frequency band search method includes steps S101 to S103.
- Step S101 Obtain a first frequency band to be searched from multiple frequency bands supported by the mobile terminal.
- the mobile terminal when the mobile terminal needs to realize the transmission with the network when the mobile terminal is turned on, it needs to perform a multi-frequency band search, that is, the physical layer of the mobile terminal will perform a frequency-by-frequency blind search process in multiple frequency bands supported by it.
- the frequency band to be searched is acquired from multiple frequency bands supported by the mobile terminal. After searching for at least one frequency band among the multiple frequency bands supported by the mobile terminal, it is necessary to determine the next search object, and continue to obtain the first frequency band to be searched from among the multiple frequency bands supported by the mobile terminal until the frequency-by-frequency of all frequency bands is completed search.
- step S101 includes: sub-step S1011 to sub-step S1012.
- Sub-step S1011 Establish a spectrum mapping table according to multiple frequency bands supported by the mobile terminal, and the spectrum mapping table is used to record the mapping relationship between frequency band identifiers and frequency bands.
- the establishment of a spectrum mapping table according to multiple frequency bands supported by the mobile terminal includes: obtaining the frequency band IDs of the multiple frequency bands supported by the mobile terminal, and sorting the multiple frequency band IDs according to a preset order; recording the arranged A mapping relationship between multiple frequency band identifiers and multiple frequency bands is obtained to obtain a spectrum mapping table.
- the frequency band identifiers of the frequency bands may be composed of letters and numbers, and the frequency band identifiers are sorted according to the size of the numbers.
- the preset order of arrangement may be the order of arrangement from large to small or the order of arrangement from small to large. In this embodiment Not specifically limited.
- the sorting order of the frequency band IDs the mapping relationship between multiple frequency band IDs and multiple frequency bands is recorded, and a neatly arranged spectrum mapping table is obtained, which is convenient for frequency-by-frequency search of all frequency bands.
- 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 ID n70 is 1695MHz-1710MHz, and the frequency band corresponding to the frequency band ID n71 is 663MHz-698MHz.
- establishing a spectrum mapping table according to multiple frequency bands supported by the mobile terminal includes: sorting the multiple frequency bands according to a preset arrangement order; recording the corresponding frequency band IDs of the multiple frequency bands arranged to obtain the frequency band ID and Spectrum mapping table between.
- each frequency band represents a spectrum range, and there are spectrum maximum values and spectrum minimum values in the spectrum range, and multiple frequency bands can be sorted according to the spectrum maximum values or spectrum minimum values of multiple frequency bands. Arrange from largest to smallest or from smallest to largest.
- the table is beneficial to select the first frequency band to be searched from the multiple frequency bands supported by the mobile terminal frequency by frequency through the frequency spectrum mapping table.
- Sub-step S1012 Select the first frequency band to be searched from the multiple frequency bands according to the arrangement sequence of the multiple frequency band identifiers in the spectrum mapping table.
- the multiple frequency band identifiers in the spectrum mapping table are arranged according to the preset order, and the first frequency band to be searched is selected from the multiple frequency bands according to the arrangement order of the multiple frequency band identifiers in the spectrum mapping table.
- the frequency band is conducive to selecting the first frequency band to be searched from the multiple frequency bands supported by the mobile terminal on a frequency-by-frequency basis, ensuring the completion of the full-frequency band search, avoiding searching for overlapping frequency bands, and effectively reducing communication delays.
- the frequency band 3300MHz-3800MHz corresponding to the frequency band identifier n78 after completing the search of the frequency band 3300MHz-3800MHz corresponding to the frequency band identifier n78, continue to obtain the first frequency band to be searched from the multiple frequency bands supported by the mobile terminal, according to the multiple frequency bands 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 Obtain a second frequency band that has been searched, where the second frequency band includes at least one frequency band among multiple frequency bands supported by the mobile terminal.
- the second frequency band includes at least one frequency band among multiple frequency bands supported by the mobile terminal.
- At least one frequency band that has been searched is obtained from multiple frequency bands supported by the mobile terminal as a searched frequency band; if there is only one frequency band that has been searched, then the searched frequency band is used as the second frequency band; If there are more than one, multiple searched frequency bands are combined to obtain the second frequency band.
- the second frequency band includes at least one frequency band that has been searched among the multiple frequency bands supported by the mobile terminal. When there are more than two searched frequency bands, it is necessary to combine more than two searched frequency bands to obtain the second frequency band.
- 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 that has been searched at this time is the frequency band identifier
- the frequency band corresponding to n78 is 3300MHz-3800MHz, and in this embodiment, the searched second frequency band 3300MHz-3800MHz is acquired.
- the first frequency band is selected in ascending order of the frequency band IDs, as shown in Table 1, after completing the search of the frequency bands corresponding to the frequency band IDs n70 and n71, select the frequency band 3300MHz-3800MHz corresponding to the frequency band ID n78 as the waiting list.
- the first frequency band searched, the second frequency band that has been searched at this time includes the frequency band 1695MHz-1710MHz corresponding to the frequency band identifier n70 and the frequency band 663MHz-698MHz corresponding to n71.
- Step S103 determining a target frequency band that does not overlap with the second frequency band from the first frequency band, and searching for the target frequency band.
- the current mobile terminal will search the supported multiple frequency bands frequency by frequency.
- the delay is long. Therefore, in this embodiment, a target frequency band that does not overlap with the second frequency band is determined from the first frequency band, and the target frequency band is searched. Avoiding searching for overlapping frequency bands and only searching for target frequency bands in the first frequency band that do not overlap with the second frequency band can effectively shorten the communication delay during multi-band searching and greatly improve user experience.
- the frequency band identification can also be composed of words and numbers.
- the frequency range of Band77 is 3300MHz-4200MHz
- the frequency range of Band78 is 3300MHz-3800MHz, and there is spectrum overlap.
- a target frequency band in the first frequency band that does not overlap with the second frequency band is 3800MHz-4200MHz.
- the first minimum value and the first maximum value in the first frequency band are determined, and the second minimum value and the second maximum value in the second frequency band are determined; the first minimum value is compared with the second minimum value to obtain the first A comparison result; comparing the first maximum value with the second maximum value to obtain a second comparison result; according to the first comparison result and the second comparison result, determining a target frequency band that does not overlap with the second frequency band from the first frequency band.
- the first comparison result includes that the first minimum value is less than the second minimum value
- the second comparison result includes that the first maximum value is greater than the second maximum value
- the first comparison result is that the first minimum value is less than the second minimum value
- the frequency band between the first minimum value and the second minimum value can be used as the first target frequency band
- the second comparison result is that the first maximum value is greater than the second maximum value
- the first maximum value to the second maximum value can be The frequency band between the values is used as the second target frequency band; according to the first target frequency band and/or the second target frequency band, the target frequency band is obtained.
- Band77 is the first frequency band
- Band78 is the second frequency band.
- the first minimum value and the first maximum value in the first frequency band Band77 are respectively 3300MHz and 4200MHz
- the second minimum value and the second maximum value in the second frequency band Band78 are respectively 3800MHz and 4200MHz
- the minimum value is compared, and the second comparison result is that the first comparison result is that the first minimum value is less than the second minimum value
- the first target frequency band is the frequency band 3300MHz–3800MHz between the first minimum value and the second minimum value
- a maximum value is compared with the second maximum value, both are 4200MHz, then the second comparison result is that the first maximum value is equal to the second maximum value, and the second target frequency band is empty; the first target frequency band and the second target frequency band Added together, the target frequency band is 3300MHz–3800MHz.
- the first frequency band to be searched is obtained from the multiple frequency bands supported by the mobile terminal; the second frequency band that has been searched is obtained, wherein the second frequency band includes the multiple frequency bands supported by the mobile terminal at least one frequency band; determine the target frequency band that does not overlap with the second frequency band from the first frequency band, and search for the target frequency band, which will not cause the problem of repeated frequency band search due to the existence of overlapping frequency bands, and effectively shorten the multi-band search process. Latency greatly improves user experience.
- FIG. 3 is a schematic flowchart of steps of another frequency band search method provided by an embodiment of the present disclosure.
- the frequency band search method includes steps S201 to S204.
- Step S201 acquiring a first frequency band to be searched from multiple frequency bands supported by the mobile terminal.
- the public land mobile network PLMN list broadcast by the base station is received; from the PLMN list, it is determined that the mobile terminal supports the target PLMN for multi-band overlapping spectrum identification; Get the first frequency band to be searched.
- Step S202 Obtain a second frequency band that has been searched, where the second frequency band includes at least one frequency band among multiple frequency bands supported by the mobile terminal.
- the second frequency band that has been searched includes at least one frequency band among the multiple frequency bands supported by the mobile terminal.
- by obtaining the second frequency band that has been searched in order to identify the overlapping frequency band between the first frequency band and the second frequency band in the subsequent process, and avoid searching for the overlapping frequency band, thereby effectively shortening the delay and improving user experience.
- the frequency band 2496MHz-2690MHz corresponding to the frequency band identifier Band41 is selected as the first frequency band to be searched, and the second frequency band that has been searched at this time is the frequency band identifier
- the frequency band corresponding to Band38 is 2570 MHz-2620 MHz, and in this embodiment, the searched second frequency band 2496 MHz-2690 MHz is acquired.
- Step S203 determining an overlapping frequency band between the first frequency band and the second frequency band.
- the target frequency band is determined and searched according to overlapping frequency bands, and the time delay of the multi-band search process is shortened.
- the first frequency band is used as the first interval
- the second frequency band is used as the second interval
- the intersection between the first interval and the second interval is obtained to obtain the overlap between the first frequency band and the second frequency band band.
- the first frequency band is the frequency band 2496MHz–2690MHz corresponding to the frequency band identifier Band41
- the second frequency band is the frequency band 2570MHz–2620MHz corresponding to the frequency band identifier Band38.
- the intersection processing is performed on the first frequency band and the second frequency band, and the overlapping frequency band obtained is 2570MHz– 2620MHz.
- an overlapping frequency band between the first frequency band and the second frequency band is determined according to the first minimum value and the first maximum value in the first frequency band. For example, determine whether the first minimum value and/or the first maximum value are within the interval range of the second frequency band; if both the first minimum value and the first maximum value are within the interval range of the second frequency band, then the first frequency band is used as The overlapping 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, then it is determined that the overlapping frequency band is from the first minimum value to the interval range of the second frequency band The spectrum range of the second maximum value of the second frequency band; 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, then it is determined that the overlapping frequency band is the second frequency band of the second frequency band Spectrum range from minimum to second minimum.
- the overlapping frequency band between the first frequency band and the second frequency band is determined according to the second minimum value and the second maximum value in the second frequency band.
- DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to the foregoing embodiments, if the second minimum value is within the interval range of the first frequency band, and the second maximum value is not within the interval range of the second frequency band, then it is determined that the overlapping frequency band is the distance from the second minimum value to the first frequency band The spectrum range of the first maximum value; 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, then it is determined that the overlapping frequency band is the first minimum value to the second frequency band of the first frequency band Spectrum range of two maxima.
- Step S204 delete overlapping frequency bands from the first frequency band, obtain a target frequency band that does not overlap with the second frequency band, and search for the target frequency band.
- the overlapping frequency band is deleted from the first frequency band to obtain the target frequency band not overlapping with the second frequency band in the first frequency band, and for the non-overlapping target frequency band with the second frequency band
- the target frequency band is searched to avoid the search of overlapping frequency bands, and the problem of repeated frequency band search will not be caused by the existence of overlapping frequency bands, so as to effectively shorten the delay and meet the requirements of 5G low delay.
- the first frequency band is the frequency band 2496MHz-2690MHz corresponding to the frequency band identifier Band41
- the second frequency band is the frequency band 2570MHz-2620MHz corresponding to the frequency band identifier Band38
- the overlapping frequency band between the first frequency band and the second frequency band is 2570MHz-2620MHz.
- the overlapping frequency bands are deleted from the first frequency band, and the target frequency bands obtained are 2496MHz-2570MHz and 2620MHz-2690MHz, and the target frequency bands include two frequency bands that do not overlap with the second frequency band.
- the target frequency band is the last frequency band in which the search is completed among the multiple frequency bands supported by the mobile terminal, and the cell with the strongest signal power can be selected according to the search result for connection. Helps ensure communication quality.
- the target frequency band is searched to obtain the frequency point numbers issued by multiple cells; the target frequency point number supported by the mobile terminal is selected from the multiple frequency point numbers, and the candidate cell corresponding to the target frequency point number is obtained to send The signal power of the signal; according to the signal power sent by the candidate cells, select the target cell with the highest signal power from the candidate cells.
- the signal power is, for example, the reference signal received power RSRP of the candidate cell.
- the target frequency band after searching the target frequency band, it also includes: obtaining the signal power of multiple operating spectrums searched in the target frequency band and the second frequency band; determining multiple candidate cells according to the multiple signal powers;
- the selection strategy selects a target cell from multiple candidate cells.
- both the target frequency band and the second frequency band include a plurality of working frequency spectrums, and during the search process of the target frequency band and the second frequency band, signal powers of the multiple working frequency spectrums can be received, and the signal power is sent by multiple cells, from multiple Selecting candidate cells corresponding to a plurality of candidate signal powers greater than or equal to the preset signal power from the cells, and then selecting a target cell from the plurality of candidate cells for connection.
- the preset selection strategy may be set according to actual conditions, for example, the preset selection strategy is cell selection S criterion or R criterion, which is not specifically limited in this embodiment.
- the first frequency band to be searched is obtained from the multiple frequency bands supported by the mobile terminal; the second frequency band that has been searched is obtained, wherein the second frequency band includes the multiple frequency bands supported by the mobile terminal at least one frequency band; determine the overlapping frequency band between the first frequency band and the second frequency band; delete the overlapping frequency band from the first frequency band to obtain a target frequency band that does not overlap with the second frequency band, and search for the target frequency band without overlapping
- the existence of frequency bands leads to the problem of repeated search of frequency bands, which effectively shortens the delay in the multi-band search process and greatly improves user experience.
- FIG. 4 is a schematic structural block diagram of a frequency band search device provided by an embodiment of the present disclosure.
- the frequency band search device 300 includes a processor 301 and a memory 302, and the processor 301 and the memory 302 are connected through a bus 303, such as an I2C (Inter-integrated Circuit) bus.
- a bus 303 such as an I2C (Inter-integrated Circuit) bus.
- the processor 301 is used to provide calculation and control capabilities to support the operation of the entire frequency band search device.
- the processor 301 can be a central processing unit (Central Processing Unit, CPU), and the processor 301 can also be other general processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC) ), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
- the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
- the memory 302 may be a Flash chip, a read-only memory (ROM, Read-Only Memory), a magnetic disk, an optical disk, a U disk, or a mobile hard disk.
- ROM read-only memory
- U disk optical disk
- mobile hard disk a mobile hard disk
- FIG. 4 is only a block diagram of a partial structure related to the embodiment of the present disclosure, and does not constitute a limitation on the frequency band search device to which the embodiment of the present disclosure is applied.
- the band search apparatus may include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.
- the processor is configured to run a computer program stored in the memory, and implement any one of the frequency band search methods provided in the embodiments of the present disclosure when executing the computer program.
- the processor is configured to run a computer program stored in the memory, and implement the following steps when executing the computer program: acquire the first frequency band to be searched from multiple frequency bands supported by the mobile terminal; the acquisition has been completed The second frequency band to be searched, wherein the second frequency band includes at least one frequency band among a plurality of frequency bands supported by the mobile terminal; a target frequency band not overlapping with the second frequency band is determined from the first frequency band, and the target frequency band is searched.
- the processor when the processor obtains the first frequency band to be searched from the multiple frequency bands supported by the mobile terminal, it is configured to: establish a spectrum mapping table according to the multiple frequency bands supported by the mobile terminal, and the spectrum mapping table It is used to record the mapping relationship between the frequency band ID and the frequency band; according to the sequence of the multiple frequency band IDs in the spectrum mapping table, the first frequency band to be searched is selected from the multiple frequency bands.
- the processor when the processor establishes the spectrum mapping table according to the multiple frequency bands supported by the mobile terminal, it is configured to: obtain the frequency band identifiers of the multiple frequency bands supported by the mobile terminal, and perform multiple The frequency band IDs are sorted; the mapping relationship between the arranged multiple frequency band IDs and multiple frequency bands is recorded to obtain the spectrum mapping table.
- the processor when the processor determines the target frequency band that does not overlap with the second frequency band from the first frequency band, it is used to: determine the overlapping frequency band between the first frequency band and the second frequency band; Delete overlapping frequency bands in the frequency band to obtain a target frequency band that does not overlap with the second frequency band; or determine according to the first minimum value and first maximum value in the first frequency band and the second minimum value and second maximum value in the second frequency band A target frequency band in the first frequency band that does not overlap with the second frequency band.
- the processor determines the sum of the first frequency band and the first maximum value of the first frequency band according to the first minimum value and the first maximum value and the second minimum value and the second maximum value of the second frequency band
- the processor determines the sum of the first frequency band and the first maximum value of the first frequency band according to the first minimum value and the first maximum value and the second minimum value and the second maximum value of the second frequency band
- the processor determines the sum of the first frequency band and the first maximum value of the first frequency band according to the first minimum value and the first maximum value and the second minimum value and the second maximum value of the second frequency band.
- the processor when it obtains the second frequency band that has been searched, it is configured to: acquire at least one frequency band that has been searched from a plurality of frequency bands supported by the mobile terminal as a searched frequency band; If there is one searched frequency band, the searched frequency band is used as the second frequency band; if there are multiple searched frequency bands, multiple searched frequency bands are combined to obtain the second frequency band.
- the processor after the processor realizes searching the target frequency band, it is further configured to: obtain the signal powers of multiple operating spectrums searched in the target frequency band and the second frequency band; Multiple candidate cells: select a target cell from multiple candidate cells according to a preset selection strategy.
- FIG. 5 is a schematic structural block diagram of a mobile terminal provided by an embodiment of the present disclosure.
- the mobile terminal 400 includes a processor 401 and a memory 402, and the processor 401 and the memory 402 are connected through a bus 403, such as an I2C (Inter-integrated Circuit) bus.
- the mobile terminal 400 may include the frequency band search apparatus 300 shown in FIG. 4 .
- the processor 401 is used to provide calculation and control capabilities to support the operation of the entire frequency band search device.
- the processor 401 can be a central processing unit (Central Processing Unit, CPU), and the processor 401 can also be other general processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC) ), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
- the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
- the memory 402 may be a Flash chip, a read-only memory (ROM, Read-Only Memory), a magnetic disk, an optical disk, a U disk, or a mobile hard disk.
- ROM read-only memory
- U disk optical disk
- mobile hard disk a mobile hard disk
- FIG. 5 is only a block diagram of a part of the structure related to the embodiment of the present disclosure, and does not constitute a limitation on the frequency band search device applied to the embodiment of the present disclosure.
- the band search apparatus may include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.
- the processor 401 is configured to run a computer program stored in a memory, and implement any one of the frequency band search methods provided in the embodiments of the present disclosure when the computer program is executed.
- An embodiment of the present disclosure also provides a storage medium for computer-readable storage, the storage medium stores one or more programs, and one or more programs can be executed by one or more processors to implement the present disclosure.
- the storage medium may be an internal storage unit of the frequency band search device described in the foregoing embodiments, such as a hard disk or a memory of the frequency band search device.
- the storage medium may also be an external storage device of the frequency band search device, such as a plug-in hard disk equipped on the frequency band search device, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) Card, Flash Card, etc.
- the first frequency band to be searched is obtained from the multiple frequency bands supported by the mobile terminal; the second frequency band that has been searched is obtained, wherein the first The second frequency band includes at least one of the multiple frequency bands supported by the mobile terminal; determine the target frequency band that does not overlap with the second frequency band from the first frequency band, and search for the target frequency band, and will not cause frequency band duplication due to the existence of overlapping frequency bands
- the search problem can effectively shorten the delay of the multi-band search process and greatly improve the user experience.
- the functional modules/units in the system, and the device can be implemented as software, firmware, hardware, and an appropriate combination thereof.
- 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 composed of several physical components. Components cooperate to execute.
- 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).
- computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media.
- Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer.
- 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 may include any information delivery media .
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Abstract
本公开提供一种频段搜索方法、频段搜索装置、移动终端及存储介质。该方法包括：从移动终端支持的多个频段中获取待搜索的第一频段；获取已完成搜索的第二频段，其中，第二频段包括移动终端支持的多个频段中的至少一个频段；从第一频段中确定不与第二频段重叠的目标频段，并对目标频段进行搜索。
Description
相关申请的交叉引用
本申请要求享有2021年07月15日提交的名称为“频段搜索方法、装置、移动终端及存储介质”的中国专利申请CN202110803144.0的优先权，其全部内容通过引用并入本申请中。
本公开涉及通信技术领域，尤其涉及一种频段搜索方法、频段搜索装置、移动终端及存储介质。
随着通信技术的迅速发展，移动终端已经普遍进入了人们的生活，为了保证移动终端的通信功能，通常在移动终端中采用射频技术来实现移动终端发射信号和接收信号的过程。第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)规划了多个具有不同频段标识的频段(Band)，每个频段标识存在各自对应的频谱范围，不同频段的绝对频点号(Absolute Radio Frequency Channel Number，ARFCN)不同，但不同频段可能出现重叠，从而导致某一频段隶属于多个频段。移动终端在选择目标小区的过程当中，会对支持的多个频段进行逐频搜索，然而重叠频段的存在会导致重复搜索的问题，使得多频段搜索过程的时延较长，不满足5G低时延的需求。
发明内容
本公开提供一种频段搜索方法、频段搜索装置、移动终端及存储介质，旨在有效缩短多频段搜索过程的通信时延，大大提升用户体验。
第一方面，本公开实施例提供一种频段搜索方法，包括：从移动终端支持的多个频段中获取待搜索的第一频段；获取已完成搜索的第二频段，其中，所述第二频段包括所述移动终端支持的多个频段中的至少一个频段；从所述第一频段中确定不与所述第二频段重叠的目标频段，并对所述目标频段进行搜索。
第二方面，本公开实施例还提供一种频段搜索装置，所述频段搜索装置包括处理器、存储器、存储在所述存储器上并可被所述处理器执行的计算机程序以及用于实现所述处理 器和所述存储器之间的连接通信的数据总线，其中所述计算机程序被所述处理器执行时，实现如本公开实施例提供的任一项频段搜索方法的步骤。
第三方面，本公开实施例还提供一种移动终端，所述移动终端包括处理器、存储器、存储在所述存储器上并可被所述处理器执行的计算机程序以及用于实现所述处理器和所述存储器之间的连接通信的数据总线，其中所述计算机程序被所述处理器执行时，实现如本公开实施例提供的任一项频段搜索方法的步骤。
第四方面，本公开实施例还提供一种存储介质，用于计算机可读存储，所述存储介质存储有一个或者多个程序，所述一个或者多个程序可被一个或者多个处理器执行，以实现如本公开实施例提供的任一项频段搜索方法的步骤。
图1为本公开实施例提供的一种频段搜索方法的步骤流程示意图；
图2为图1中的频段搜索方法的子步骤流程示意图；
图3为本公开实施例提供的另一种频段搜索方法的步骤流程示意图；
图4为本公开实施例提供的一种频段搜索装置的结构示意框图；
图5为本公开实施例提供的一种移动终端的结构示意框图。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
附图中所示的流程图仅是示例说明，不是必须包括所有的内容和操作/步骤，也不是必须按所描述的顺序执行。例如，有的操作/步骤还可以分解、组合或部分合并，因此实际执行的顺序有可能根据实际情况改变。
应当理解，在此本公开说明书中所使用的术语仅仅是出于描述特定实施例的目的而并不意在限制本公开。如在本公开说明书和所附权利要求书中所使用的那样，除非上下文清楚地指明其它情况，否则单数形式的“一”、“一个”及“该”意在包括复数形式。
本公开实施例提供一种频段搜索方法、装置、移动终端及存储介质。其中，该频段搜 索方法可应用于频段搜索装置或者移动终端中，该移动终端可以是手机、平板电脑、笔记本电脑、台式电脑、个人数字助理和穿戴式设备等电子设备，频段搜索装置可以安置于移动终端内部，本实施例对此不做具体限定。
下面结合附图，对本公开的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
请参照图1，图1为本公开实施例提供的一种频段搜索方法的步骤流程示意图。
如图1所示，该频段搜索方法包括步骤S101至步骤S103。
步骤S101、从移动终端支持的多个频段中获取待搜索的第一频段。
需要说明的是，对于国内5G网络，不同运营商使用的频段(Band)不同，不同品牌、不同型号的移动终端能够支持的频段也不尽相同。并且，移动终端在选择目标小区的过程当中，会对支持的多个频段进行逐频搜索。因此，在执行频段搜索时，需要从移动终端支持的多个频段中获取一个频段作为待搜索的第一频段，并在完成第一频段的搜索之后，继续从移动终端支持的多个频段中获取另一个频段作为待搜索的第一频段，直至完成全频段的逐频搜索。
示例性的，在移动终端开机时，需要实现与网络的传输，就要执行多频段搜索，即移动终端的物理层会在其所支持的多个频段进行逐频搜索的盲搜过程，首先要从移动终端支持的多个频段中获取待搜索的频段。在对移动终端支持的多个频段中的至少一个频段进行搜索之后，需要确定下一个搜索对象，继续从移动终端支持的多个频段中获取待搜索的第一频段，直至完成全频段的逐频搜索。
在一实施例中，如图2所示，步骤S101包括：子步骤S1011至子步骤S1012。
子步骤S1011、根据移动终端支持的多个频段建立频谱映射表，频谱映射表用于记录频段标识与频段之间的映射关系。
在一实施例中，根据移动终端支持的多个频段建立频谱映射表，包括：获取移动终端支持的多个频段的频段标识，并按照预设排列顺序对多个频段标识进行排序；记录排列的多个频段标识与多个频段之间的映射关系，得到频谱映射表。其中，频段的频段标识可由字母和数字组成，按照数字大小对频段标识进行排序，预设排列顺序可以是按照从大到小进行排列的顺序或者是按照从小到大进行排列的顺序，本实施例不做具体限定。按照频段标识的排序顺序，记录多个频段标识与多个频段之间的映射关系，得到排列整齐的频谱映射表，便于全频段的逐频搜索。
示例性的，请参阅表1，假设移动终端支持的多个频段包括n77、n78、n70和n71，其 中频段标识n77对应的频段为3300MHz–4200MHz(兆赫兹)，频段标识n78对应的频段为3300MHz–3800MHz。频段标识n70对应的频段为1695MHz–1710MHz，频段标识n71对应的频段为663MHz–698MHz。按照从大到小进行排列的顺序，对频段标识n77、n78、n70和n71进行排列，得到如表1所示的频谱映射表。
表1
| 频段标识 | 频段 |
| n78 | 3300MHz–3800MHz |
| n77 | 3300MHz–4200MHz |
| n71 | 663MHz–698MHz |
| n70 | 1695MHz–1710MHz |
在一实施例中，根据移动终端支持的多个频段建立频谱映射表，包括：按照预设排列顺序对多个频段进行排序；记录排列的多个频段各自对应的频段标识，得到频段标识与频段之间的频谱映射表。其中，每个频段代表一个频谱范围，频谱范围内存在频谱最大值和频谱最小值，可以根据多个频段的频谱最大值或者频谱最小值，对多个频段进行排序，预设排列顺序例如按照从大到小进行排列的顺序或者是按照从小到大进行排列。可选的，按照多个频段的频谱最大值从小到大进行排列的顺序，对多个频段进行排序，并记录排列的多个频段各自对应的频段标识，得到频段标识与频段之间的频谱映射表，有利于通过频谱映射表逐频地从移动终端支持的多个频段中选取待搜索的第一频段。
子步骤S1012、根据频谱映射表中的多个频段标识的排列顺序，从多个频段中选取待搜索的第一频段。
需要说明的是，频谱映射表中的多个频段标识都是按照预设排列顺序排列好的，根据频谱映射表中的多个频段标识的排列顺序，从多个频段中选取待搜索的第一频段，有利于逐频地从移动终端支持的多个频段中选取待搜索的第一频段，保证完成全频段搜索，避免对重叠频段进行搜索，有效减低通信时延。
示例性的，如表1所示，在完成频段标识n78对应的频段3300MHz–3800MHz的搜索之后，继续从移动终端支持的多个频段中获取待搜索的第一频段，按照表1中的多个频段标识的排列顺序，选取频段标识n77对应的频段3300MHz–4200MHz作为待搜索的第一频段。
步骤S102、获取已完成搜索的第二频段，其中，第二频段包括移动终端支持的多个频段中的至少一个频段。
需要说明的是，在选取待搜索的第一频段时，已经存在已完成搜索的第二频段，且该第二频段包括移动终端支持的多个频段中的至少一个频段。本实施例需要获取已完成搜索的第二频段，以便在后续过程中识别第一频段与第二频段之间的重叠频段，并避免对重叠频段进行搜索，从而有效缩短时延，提高用户体验。
在一实施例中，从移动终端支持的多个频段中获取已完成搜索的至少一个频段作为已搜索频段；若已搜索频段为一个，则将已搜索频段作为第二频段；若已搜索频段为多个，则合并多个已搜索频段，得到第二频段。可见，第二频段包括移动终端支持的多个频段中已完成搜索的至少一个频段，当已搜索频段为两个以上，需要合并两个以上的已搜索频段，得到第二频段。
示例性的，在完成频段标识n78对应的频段3300MHz–3800MHz的搜索之后，选取频段标识n77对应的频段3300MHz–4200MHz作为待搜索的第一频段，此时已完成搜索的第二频段即为频段标识n78对应的频段3300MHz–3800MHz，则本实施例获取已完成搜索的第二频段3300MHz–3800MHz。
示例性的，若按照频段标识从小到大的顺序选取第一频段，如表1所示，在完成频段标识n70和n71对应的频段的搜索之后，选取频段标识n78对应的频段3300MHz–3800MHz作为待搜索的第一频段，此时已完成搜索的第二频段包括频段标识n70对应的频段1695MHz–1710MHz和n71对应的频段663MHz–698MHz。
步骤S103、从第一频段中确定不与第二频段重叠的目标频段，并对目标频段进行搜索。
需要说明的是，当前的移动终端在选择目标小区的过程当中，会对支持的多个频段进行逐频搜索，多个频段之间的重叠频段会导致重复搜索的问题，使得多频段搜索过程的时延较长。因此本实施例从第一频段中确定不与第二频段重叠的目标频段，并对目标频段进行搜索。避免对重叠频段进行搜索，仅对第一频段中的不与第二频段重叠的目标频段进行搜索，能够有效缩短多频段搜索时的通信时延，极大地提高用户体验。
在一实施例中，根据第一频段中的第一最小值与第一最大值以及第二频段中的第二最小值与第二最大值，确定第一频段中的与第二频段不重叠的目标频段。其中，频段标识也可以由单词和数字组成，比如，Band77的频率范围为3300MHz–4200MHz，Band78的频率范围为3300MHz–3800MHz，存在频谱的重叠。假设Band77为第一频段，Band78为第二频段，那么根据Band77的频率范围中的第一最小值与第一最大值，以及Band78的频率范围中的第二最小值与第二最大值，能够确定第一频段中的与第二频段不重叠的目标频段为3800MHz–4200MHz。
其中，确定第一频段中的第一最小值与第一最大值，并确定第二频段中的第二最小值 与第二最大值；将第一最小值与第二最小值进行比较，得到第一比较结果；将第一最大值与第二最大值进行比较，得到第二比较结果；根据第一比较结果和第二比较结果，从第一频段中确定不与第二频段重叠的目标频段。需要说明的是，第一比较结果包括第一最小值小于第二最小值，第二比较结果包括第一最大值大于第二最大值；如果第一比较结果为第一最小值小于第二最小值，那么可以将第一最小值至第二最小值之间的频段作为第一目标频段；如果第二比较结果为第一最大值大于第二最大值，那么可以将第一最大值至第二最大值之间的频段作为第二目标频段；根据第一目标频段和/或第二目标频段，得到目标频段。
示例性的，Band77为第一频段，Band78为第二频段。第一频段Band77中的第一最小值与第一最大值分别为3300MHz和4200MHz，第二频段Band78中的第二最小值与第二最大值分别为3800MHz和4200MHz；将第一最小值与第二最小值进行比较，得到第二比较结果为第一比较结果为第一最小值小于第二最小值，第一目标频段为第一最小值至第二最小值之间的频段3300MHz–3800MHz；将第一最大值与第二最大值进行比较，两者均为4200MHz，则第二比较结果为第一最大值等于第二最大值，第二目标频段为空；将第一目标频段和第二目标频段相加，得到目标频段为3300MHz–3800MHz。
利用上述实施例提供的频段搜索方法，从移动终端支持的多个频段中获取待搜索的第一频段；获取已完成搜索的第二频段，其中，第二频段包括移动终端支持的多个频段中的至少一个频段；从第一频段中确定不与第二频段重叠的目标频段，并对目标频段进行搜索，不会由于重叠频段的存在而导致频段重复搜索的问题，有效缩短多频段搜索过程的时延，大大提升用户体验。
请参照图3，图3为本公开实施例提供的另一种频段搜索方法的步骤流程示意图。
如图3所示，该频段搜索方法包括步骤S201至S204。
步骤S201、从移动终端支持的多个频段中获取待搜索的第一频段。
需要说明的是，在对移动终端支持的多个频段中的至少一个频段进行搜索之后，需要确定下一个搜索对象，即从移动终端支持的多个频段中获取待搜索的第一频段。
在一实施例中，接收基站广播的公共陆地移动网络PLMN列表；从PLMN列表中确定移动终端支持进行多频段重叠频谱识别的目标PLMN；连接该目标PLMN，并从移动终端支持的多个频段中获取待搜索的第一频段。
步骤S202、获取已完成搜索的第二频段，其中，第二频段包括移动终端支持的多个频段中的至少一个频段。
已完成搜索的第二频段包括移动终端支持的多个频段中的至少一个频段。本实施例通 过获取已完成搜索的第二频段，以便在后续过程中识别第一频段与第二频段之间的重叠频段，并避免对重叠频段进行搜索，从而有效缩短时延，提高用户体验。
示例性的，在完成频段标识Band38对应的频段2570MHz–2620MHz的搜索之后，选取频段标识Band41对应的频段2496MHz–2690MHz作为待搜索的第一频段，此时已完成搜索的第二频段即为频段标识Band38对应的频段2570MHz–2620MHz，则本实施例获取已完成搜索的第二频段2496MHz–2690MHz。
步骤S203、确定第一频段与第二频段之间的重叠频段。
在一实施例中，持续检测移动终端的当前搜索频段，并根据检测结果判断移动终端的该当前搜索频段是否切换；若确定移动终端的该当前搜索频段切换，则获取切换前后的两段频段，并确定该切换前后的两段频段之间的重叠频段；将该重叠频段写入移动终端的射频芯片，以便后续执行多频段搜索时能够根据该切换前后的两段频段直接确定重叠频段，有利于根据重叠频段确定目标频段并进行搜索，缩短多频段搜索过程的时延。
在一实施例中，将第一频段作为第一区间，将第二频段作为第二区间；获取该第一区间和第二区间之间的交集，得到第一频段与第二频段之间的重叠频段。例如，第一频段为频段标识Band41对应的频段2496MHz–2690MHz，第二频段为频段标识Band38对应的频段2570MHz–2620MHz，对第一频段与第二频段进行取交集处理，得到的重叠频段为2570MHz–2620MHz。
在一实施例中，根据第一频段中的第一最小值与第一最大值，确定第一频段与第二频段之间的重叠频段。举例而言，确定第一最小值和/或第一最大值是否位于第二频段的区间范围；若第一最小值和第一最大值均位于第二频段的区间范围，则将第一频段作为第一频段与第二频段之间的重叠频段；若第一最小值位于第二频段的区间范围，且第一最大值不位于第二频段的区间范围，则确定重叠频段为第一最小值至第二频段的第二最大值的频谱范围；若第一最小值不位于第二频段的区间范围，且第一最大值位于第二频段的区间范围，则确定重叠频段为第二频段的第二最小值至第二最小值的频谱范围。
在一实施例中，根据第二频段中的第二最小值与第二最大值，确定第一频段与第二频段之间的重叠频段。具体实施方式可参考前述实施例，若第二最小值位于第一频段的区间范围，且第二最大值不位于第二频段的区间范围，则确定重叠频段为第二最小值至第一频段的第一最大值的频谱范围；若第二最小值不位于第一频段的区间范围，且第二最大值位于第一频段的区间范围，则确定重叠频段为第一频段的第一最小值至第二最大值的频谱范围。
步骤S204、从第一频段中删除重叠频段，得到与第二频段不重叠的目标频段，并对目 标频段进行搜索。
在确定第一频段与第二频段之间的重叠频段之后，从第一频段中删除该重叠频段，得到第一频段中的与第二频段不重叠的目标频段，对与第二频段不重叠的目标频段进行搜索，避免对重叠频段进行搜索，不会由于重叠频段的存在而导致频段重复搜索的问题，从而有效缩短时延，满足5G低时延的需求。
示例性的，第一频段为频段标识Band41对应的频段2496MHz–2690MHz，第二频段为频段标识Band38对应的频段2570MHz–2620MHz，第一频段与第二频段之间的重叠频段为2570MHz–2620MHz。从第一频段中删除重叠频段，得到的目标频段为2496MHz–2570MHz以及2620MHz–2690MHz，该目标频段包括两段均不与第二频段重叠的频段。
在一实施例中，当完成全频段的逐频搜索时，该目标频段为移动终端支持的多个频段中的最后一个完成搜索的频段，可以根据搜索结果选取信号功率最强的小区进行连接，有利于保障通信质量。
示例性的，对目标频段进行搜索，以获取多个小区下发的频点号；从多个频点号中选取移动终端支持的目标频点号，并获取目标频点号对应的候选小区发送的信号功率；根据候选小区发送的信号功率，从候选小区中选取信号功率最大的目标小区。其中，信号功率例如为候选小区的参考信号接收功率RSRP。
在一实施例中，对目标频段进行搜索之后，还包括：获取在目标频段和第二频段中搜索到的多个工作频谱的信号功率；根据多个信号功率确定多个候选小区；按照预设选取策略从多个候选小区中选取目标小区。其中，目标频段和第二频段均包括多个工作频谱，在目标频段和第二频段的搜索过程中，能够接收多个工作频谱的信号功率，该信号功率是由多个小区发送的，从多个小区中选取大于或者等于预设信号功率的多个候选信号功率对应的候选小区，再从多个候选小区中选取目标小区进行连接。需要说明的是，预设选取策略可以根据实际情况进行设置，例如预设选取策略为小区选择S准则或者R准则，本实施例不做具体限定。
利用上述实施例提供的频段搜索方法，从移动终端支持的多个频段中获取待搜索的第一频段；获取已完成搜索的第二频段，其中，第二频段包括移动终端支持的多个频段中的至少一个频段；确定第一频段与第二频段之间的重叠频段；从第一频段中删除重叠频段，得到与第二频段不重叠的目标频段，并对目标频段进行搜索，不会由于重叠频段的存在而导致频段重复搜索的问题，有效缩短多频段搜索过程的时延，大大提升用户体验。
请参阅图4，图4为本公开实施例提供的一种频段搜索装置的结构示意性框图。
如图4所示，频段搜索装置300包括处理器301和存储器302，处理器301和存储器302通过总线303连接，该总线303比如为I2C(Inter-integrated Circuit)总线。
举例而言，处理器301用于提供计算和控制能力，支撑整个频段搜索装置的运行。处理器301可以是中央处理单元(Central Processing Unit，CPU)，该处理器301还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。其中，通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
举例而言，存储器302可以是Flash芯片、只读存储器(ROM，Read-Only Memory)、磁盘、光盘、U盘或移动硬盘等。
本领域技术人员可以理解，图4中示出的结构，仅仅是与本公开实施例相关的部分结构的框图，并不构成对本公开实施例所应用于其上的频段搜索装置的限定，具体的频段搜索装置可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
其中，所述处理器用于运行存储在存储器中的计算机程序，并在执行计算机程序时实现本公开实施例提供的任意一种所述的频段搜索方法。
在一实施例中，所述处理器用于运行存储在存储器中的计算机程序，并在执行计算机程序时实现如下步骤：从移动终端支持的多个频段中获取待搜索的第一频段；获取已完成搜索的第二频段，其中，第二频段包括移动终端支持的多个频段中的至少一个频段；从第一频段中确定不与第二频段重叠的目标频段，并对目标频段进行搜索。
在一实施例中，所述处理器在实现从移动终端支持的多个频段中获取待搜索的第一频段时，用于实现：根据移动终端支持的多个频段建立频谱映射表，频谱映射表用于记录频段标识与频段之间的映射关系；根据频谱映射表中的多个频段标识的排列顺序，从多个频段中选取待搜索的第一频段。
在一实施例中，所述处理器在实现根据移动终端支持的多个频段建立频谱映射表时，用于实现：获取移动终端支持的多个频段的频段标识，并按照预设排列顺序对多个频段标识进行排序；记录排列的多个频段标识与多个频段之间的映射关系，得到频谱映射表。
在一实施例中，所述处理器在实现从第一频段中确定不与第二频段重叠的目标频段时，用于实现：确定第一频段与第二频段之间的重叠频段；从第一频段中删除重叠频段，得到与第二频段不重叠的目标频段；或者根据第一频段中的第一最小值与第一最大值以及第二 频段中的第二最小值与第二最大值，确定第一频段中的与第二频段不重叠的目标频段。
在一实施例中，所述处理器在实现根据第一频段中的第一最小值与第一最大值以及第二频段中的第二最小值与第二最大值，确定第一频段中的与第二频段不重叠的目标频段时，用于实现：确定第一频段中的第一最小值与第一最大值，并确定第二频段中的第二最小值与第二最大值；将第一最小值与第二最小值进行比较，得到第一比较结果；将第一最大值与第二最大值进行比较，得到第二比较结果；根据第一比较结果和第二比较结果，从第一频段中确定不与第二频段重叠的目标频段。
在一实施例中，所述处理器在实现获取已完成搜索的第二频段时，用于实现：从移动终端支持的多个频段中获取已完成搜索的至少一个频段作为已搜索频段；若已搜索频段为一个，则将已搜索频段作为第二频段；若已搜索频段为多个，则合并多个已搜索频段，得到第二频段。
在一实施例中，所述处理器在实现对目标频段进行搜索之后，还用于实现：获取在目标频段和第二频段中搜索到的多个工作频谱的信号功率；根据多个信号功率确定多个候选小区；按照预设选取策略从多个候选小区中选取目标小区。
需要说明的是，所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的频段搜索装置的具体工作过程，可以参考前述频段搜索方法实施例中的对应过程，在此不再赘述。
请参阅图5，图5为本公开实施例提供的一种移动终端的结构示意性框图。
如图5所示，移动终端400包括处理器401和存储器402，处理器401和存储器402通过总线403连接，该总线403比如为I2C(Inter-integrated Circuit)总线。其中，移动终端400可以包括图4所示的频段搜索装置300。
举例而言，处理器401用于提供计算和控制能力，支撑整个频段搜索装置的运行。处理器401可以是中央处理单元(Central Processing Unit，CPU)，该处理器401还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。其中，通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
举例而言，存储器402可以是Flash芯片、只读存储器(ROM，Read-Only Memory)、磁盘、光盘、U盘或移动硬盘等。
本领域技术人员可以理解，图5中示出的结构，仅仅是与本公开实施例相关的部分结 构的框图，并不构成对本公开实施例所应用于其上的频段搜索装置的限定，具体的频段搜索装置可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
其中，所述处理器401用于运行存储在存储器中的计算机程序，并在执行计算机程序时实现本公开实施例提供的任意一种所述的频段搜索方法。
本公开实施例还提供一种存储介质，用于计算机可读存储，所述存储介质存储有一个或者多个程序，一个或者多个程序可被一个或者多个处理器执行，以实现如本公开实施例提供的任一项频段搜索方法的步骤。
其中，所述存储介质可以是前述实施例所述的频段搜索装置的内部存储单元，例如所述频段搜索装置的硬盘或内存。所述存储介质也可以是所述频段搜索装置的外部存储设备，例如所述频段搜索装置上配备的插接式硬盘、智能存储卡(Smart Media Card，SMC)、安全数字(Secure Digital，SD)卡、闪存卡(Flash Card)等。
利用本公开实施例提供的频段搜索方法、频段搜索装置、移动终端及存储介质，从移动终端支持的多个频段中获取待搜索的第一频段；获取已完成搜索的第二频段，其中，第二频段包括移动终端支持的多个频段中的至少一个频段；从第一频段中确定不与第二频段重叠的目标频段，并对目标频段进行搜索，不会由于重叠频段的存在而导致频段重复搜索的问题，有效缩短多频段搜索过程的时延，大大提升用户体验。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的 调制数据信号中的其他数据，并且可包括任何信息递送介质。
应当理解，在本公开说明书和所附权利要求书中使用的术语“和/或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合，并且包括这些组合。需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者系统不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者系统所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者系统中还存在另外的相同要素。
上述本公开实施例序号仅仅为了描述，不代表实施例的优劣。以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。
Claims (10)
- 一种频段搜索方法，包括：从移动终端支持的多个频段中获取待搜索的第一频段；获取已完成搜索的第二频段，其中，所述第二频段包括所述移动终端支持的多个频段中的至少一个频段；从所述第一频段中确定不与所述第二频段重叠的目标频段，并对所述目标频段进行搜索。
- 根据权利要求1所述的频段搜索方法，其中，所述从移动终端支持的多个频段中获取待搜索的第一频段，包括：根据移动终端支持的多个频段建立频谱映射表，所述频谱映射表用于记录频段标识与频段之间的映射关系；根据所述频谱映射表中的多个所述频段标识的排列顺序，从多个所述频段中选取待搜索的第一频段。
- 根据权利要求2所述的频段搜索方法，其中，所述根据移动终端支持的多个频段建立频谱映射表，包括：获取移动终端支持的多个频段的频段标识，并按照预设排列顺序对多个所述频段标识进行排序；记录排列的多个所述频段标识与多个所述频段之间的映射关系，得到频谱映射表。
- 根据权利要求1所述的频段搜索方法，其中，所述从所述第一频段中确定不与所述第二频段重叠的目标频段，包括：确定所述第一频段与所述第二频段之间的重叠频段；从所述第一频段中删除所述重叠频段，得到与所述第二频段不重叠的目标频段；或者根据所述第一频段中的第一最小值与第一最大值以及所述第二频段中的第二最小值与第二最大值，确定所述第一频段中的与所述第二频段不重叠的目标频段。
- 根据权利要求4所述的频段搜索方法，其中，所述根据所述第一频段中的第一最小值与第一最大值以及所述第二频段中的第二最小值与第二最大值，确定所述第一频段中的与所述第二频段不重叠的目标频段，包括：确定所述第一频段中的第一最小值与第一最大值，并确定所述第二频段中的第二最小值与第二最大值；将所述第一最小值与所述第二最小值进行比较，得到第一比较结果；将所述第一最大值与所述第二最大值进行比较，得到第二比较结果；根据所述第一比较结果和第二比较结果，从所述第一频段中确定不与所述第二频段重叠的目标频段。
- 根据权利要求1所述的频段搜索方法，其中，所述获取已完成搜索的第二频段，包括：从移动终端支持的多个频段中获取已完成搜索的至少一个频段作为已搜索频段；若所述已搜索频段为一个，则将所述已搜索频段作为第二频段；若所述已搜索频段为多个，则合并多个所述已搜索频段，得到第二频段。
- 根据权利要求1-6中任一项所述的频段搜索方法，其中，所述对所述目标频段进行搜索之后，还包括：获取在所述目标频段和所述第二频段中搜索到的多个工作频谱的信号功率；根据多个所述信号功率确定多个候选小区；按照预设选取策略从所述多个候选小区中选取目标小区。
- 一种频段搜索装置，其中，所述频段搜索装置包括处理器、存储器、存储在所述存储器上并可被所述处理器执行的计算机程序以及用于实现所述处理器和所述存储器之间的连接通信的数据总线，其中所述计算机程序被所述处理器执行时，实现如权利要求1至7中任一项所述的频段搜索方法的步骤。
- 一种移动终端，其中，所述移动终端包括处理器、存储器、存储在所述存储器上并可被所述处理器执行的计算机程序以及用于实现所述处理器和所述存储器之间的连接通信的数据总线，其中所述计算机程序被所述处理器执行时，实现根据权利要求1至7中任一项所述的频段搜索方法的步骤。
- 一种存储介质，用于计算机可读存储，其中，所述存储介质存储有一个或者多个程序，所述一个或者多个程序可被一个或者多个处理器执行，以实现根据权利要求1至7中任一项所述的频段搜索方法的步骤。
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| US20090124224A1 (en) * | 2007-11-14 | 2009-05-14 | Infineon Technologies Ag | Radio communication device, receiver controller of a radio communication device, and method for searching for a radio cell |
| CN103229571A (zh) * | 2011-11-15 | 2013-07-31 | 联发科技股份有限公司 | 高效网络搜索方法和通信装置 |
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| CN1946236A (zh) * | 2005-10-06 | 2007-04-11 | 联发科技股份有限公司 | 移动台及其相关载波搜寻方法 |
| US20090124224A1 (en) * | 2007-11-14 | 2009-05-14 | Infineon Technologies Ag | Radio communication device, receiver controller of a radio communication device, and method for searching for a radio cell |
| CN103229571A (zh) * | 2011-11-15 | 2013-07-31 | 联发科技股份有限公司 | 高效网络搜索方法和通信装置 |
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