CN111654344A - Frequency band scanning method, device, equipment and storage medium - Google Patents
Frequency band scanning method, device, equipment and storage medium Download PDFInfo
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- CN111654344A CN111654344A CN202010563525.1A CN202010563525A CN111654344A CN 111654344 A CN111654344 A CN 111654344A CN 202010563525 A CN202010563525 A CN 202010563525A CN 111654344 A CN111654344 A CN 111654344A
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Abstract
The application provides a frequency band scanning method, a device, equipment and a storage medium, wherein the method comprises the following steps: determining at least two second frequency bands which support parallel scanning execution by the terminal equipment in a plurality of first frequency bands to be scanned by the terminal equipment; performing scanning in parallel on the at least two second frequency bands. According to the scheme, the scanning of a plurality of frequency bands can be executed in parallel, and the time of the Band Sweep process is reduced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a frequency band scanning method, apparatus, device, and storage medium.
Background
With the progress of communication technology, the channel bandwidth of 4G and 5G communication systems is wider and more spectrum resources are supported. Generally, when a terminal is turned on to find a network, drops the network and finds the network again or a user manually selects the network, a frequency band scanning BandSweep process is performed. The Band Sweep process refers to the process of scanning a power spectrum of a Band supported by a terminal, sequencing energy, and searching a cell based on a frequency point according to an energy sequencing result.
In the related art, when a terminal scans a Band Sweep process, the frequency bands supported by the terminal are scanned one by power spectrum scanning and energy sequencing, and a cell searching process based on frequency points is carried out according to energy sequencing results, so that the time consumption of the frequency Band scanning process is long.
Disclosure of Invention
The application provides a frequency Band scanning method, a frequency Band scanning device, frequency Band scanning equipment and a storage medium, so that time consumption of a Band Sweep process is reduced.
In a first aspect, the present application provides a frequency band scanning method, including:
determining at least two second frequency bands which support parallel scanning execution by the terminal equipment in a plurality of first frequency bands to be scanned by the terminal equipment;
performing scanning in parallel on the at least two second frequency bands.
In a possible implementation manner, the determining that the terminal device supports at least two second frequency bands for performing scanning in parallel includes:
and determining at least two second frequency bands which are supported by the terminal device to perform scanning in parallel in the plurality of first frequency bands according to the first number of parallel receiving paths supported by the terminal device and the frequency band information which is supported by the terminal device to perform scanning in parallel.
In one possible implementation manner, determining, in the plurality of first frequency bands, at least two second frequency bands in which the terminal device supports performing scanning in parallel includes:
determining the number of frequency bands in at least one frequency band combination which is supported by the terminal equipment and performs scanning in parallel according to the frequency band information which is supported by the terminal equipment and performs scanning in parallel; each frequency band combination comprises at least two first frequency bands, and the at least two first frequency bands are frequency bands which are supported by the terminal equipment and are used for executing scanning in parallel;
and determining at least two second frequency bands which are supported by the terminal equipment to perform scanning in parallel in at least one frequency band combination according to the number of the frequency bands in at least one frequency band combination and the first number of parallel receiving paths supported by the terminal equipment.
In a possible implementation manner, the determining, in at least one of the frequency band combinations, that the terminal device supports at least two second frequency bands for performing scanning in parallel includes:
if the second number is greater than or equal to the first number, selecting the first frequency band with the first number from any frequency band combination as the second frequency band; the second number is the minimum value of the number of the frequency bands of each frequency band combination;
if the third number is less than or equal to the first number, taking the first frequency band in any frequency band combination as the second frequency band; the third number is the maximum value of the number of the frequency bands of each frequency band combination;
if the second number is smaller than the first number and the third number is larger than the first number, selecting the first frequency bands of the first number from the frequency band combinations of which the frequency band number is larger than or equal to the first number as the second frequency bands.
In one possible implementation, the method further includes:
after at least one of the at least two second frequency bands is scanned, determining a fourth frequency band which is supported by the terminal device to execute scanning in parallel with the third frequency band; wherein, the third frequency band is a frequency band which is not scanned in the at least two second frequency bands;
performing a scan of the fourth frequency band.
In a second aspect, the present application provides a frequency band scanning apparatus, including:
the terminal equipment comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining at least two second frequency bands which support parallel execution of scanning in a plurality of first frequency bands to be scanned by the terminal equipment;
and the processing module is used for executing scanning on the at least two second frequency bands in parallel.
In a third aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the method of any one of the first aspect.
In a fourth aspect, an embodiment of the present application provides a terminal device, including:
a processor, a memory, an interface to communicate with other devices;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored by the memory, causing the processor to perform the method of any of the first aspects.
According to the frequency band scanning method, the frequency band scanning device, the frequency band scanning equipment and the storage medium, in a plurality of first frequency bands to be scanned of the terminal equipment, at least two second frequency bands which support the parallel scanning of the terminal equipment are determined; the scanning can be executed on at least two second frequency bands in parallel, compared with the scanning of a plurality of frequency bands executed in series in the prior art, the time consumed in the BandSweep process can be reduced, and the network searching time of scenes such as network searching when the terminal is started, network searching when the network is disconnected or network searching is carried out manually can be greatly shortened.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present application;
fig. 2 is a schematic flowchart of an embodiment of a frequency band scanning method provided in the present application;
fig. 3 is a schematic diagram illustrating a frequency band scanning method according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram illustrating a frequency band scanning method according to another embodiment of the present application;
fig. 5 is a schematic structural diagram of an embodiment of a frequency band scanning apparatus provided in the present application;
fig. 6 is a schematic structural diagram of an embodiment of a terminal device provided in the present application.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terms "comprising" and "having," and any variations thereof, in the description and claims of this application and the drawings described herein are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
First, the nouns and application scenarios referred to in the present application will be described:
band Sweep procedure (also known as cell search procedure or powersweep procedure): in the present application, the whole process of Cell Search (CS) is performed based on the energy sorting result after the terminal device is turned on to find a network or after a network is dropped, based on the power spectrum scanning of the frequency band, and energy sorting is performed.
A terminal device as referred to in this application may refer to a device that provides voice and/or data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. The terminal device may communicate with at least one core Network via a Radio Access Network (RAN). The terminal equipment may be mobile terminals such as mobile telephones (or so-called "cellular" telephones) and computers with mobile terminals, e.g. portable, pocket, hand-held, computer-included or car-mounted mobile devices, which exchange voice and/or data with a radio access network. The Terminal device may also be referred to as a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile Station), a Remote Station (Remote Station), an Access Point (Access Point), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), or a User device (User equipment), which is not limited herein.
The network device in the present application may be a Base Transceiver Station (BTS) in Global System for mobile communications (GSM) or Code Division Multiple Access (CDMA), a base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved NodeB (eNB) in Long Term Evolution (LTE) or enhanced Long Term Evolution (LTE), a next evolved NodeB (Access-evolved node b, ng-eNB) in WLAN, an Access Point (AP) or a relay Station in 5G NR, a gbb in a future communication network, and the like, and the Access to the network device is not limited.
Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present application, and the technical solution provided by the present application is based on the network architecture shown in fig. 1, where the network architecture includes at least one terminal device 10 and communicates with a network device 20 through a wireless interface, and for clarity, only one terminal device and one network device are shown in fig. 1.
The terminal device can be any electronic device with a mobile communication function, such as a smart phone, a tablet computer, a notebook computer, smart glasses, a smart bracelet and the like.
In the related art, for an LTE system, the implementation manner of the Band Sweep process is generally that the Band Sweep process is performed based on one frequency Band, and if a certain frequency Band is successfully found, the overall Band Sweep process is ended. That is, the energy sorting of the power spectrum is performed according to the currently scanned frequency band, and then the cell search process of the frequency band is directly performed.
For the NR system, the implementation manner of the Band Sweep process is generally to perform power spectrum scanning based on all frequency bands, then perform energy sorting, and perform a cell search process according to an energy sorting result. That is, the energy ordering of the power spectrum is done according to the scanning results of all frequency bands.
In addition, in the above scheme, when the power spectrum is scanned, the frequency bands are scanned one by one, and particularly for an NR system, the time consumption of the Band Sweep process is long, and the time for finding or reselecting the network is affected.
According to the method, the Band Sweep process is executed in parallel through the multiple frequency bands, so that the time for executing the Band Sweep process is shortened, and the network searching time of scenes such as starting up the terminal, searching for a network, dropping the network, searching for the network or manually searching for the network is further shortened.
The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 2 is a flowchart illustrating a frequency band scanning method according to an embodiment of the present disclosure. As shown in fig. 2, the method provided by this embodiment includes:
Specifically, with the progress of communication technology, the channel bandwidth of a communication system is wider and wider, and the supported spectrum resources are more and more. The terminal device may support multiple frequency bands, for example, a terminal device of an NR system of a certain operator supports N78, N79, and N41 frequency bands.
In one embodiment, for a terminal supporting a plurality of communication systems, especially for 4G and 5G systems which have been developed at a high speed in recent years, to support Carrier Aggregation (CA), the number of reception paths supported by hardware is generally greater than 1, and therefore, on the reception path of hardware, the possibility of multi-band concurrent scanning is supported. The terminal equipment has more frequency bands scanned in the processes of starting up and network searching, network searching after network dropping or network searching manually, and can perform parallel scanning on a plurality of frequency bands in order to reduce the time of frequency band scanning.
Therefore, among the plurality of first frequency bands, it is necessary to determine at least two second frequency bands in which the terminal device supports performing scanning in parallel.
For a plurality of first frequency bands, some frequency bands may be executed in parallel, and some frequency bands may not be executed in parallel, for example, the frequency band1 and the frequency band2 may be executed in parallel, one of the frequency band1 and the frequency band2 is a high frequency, and one of the frequency bands is a low frequency.
The number of parallel receiving paths supported by the hardware and the number of frequency bands for performing scanning in parallel supported by the terminal device may be the same or different.
For example, the number of receiving paths supported by hardware is 3, the terminal device supports frequency band1, frequency band2, and frequency band3, and the frequency bands that can be concurrently scanned are frequency band1 and frequency band2, or frequency band1 and frequency band3, or frequency band1, frequency band2, and frequency band3, it is determined that the second frequency band that the terminal device supports concurrently scanning is frequency band1 and frequency band2, or frequency band1 and frequency band3, or frequency band1, frequency band2, and frequency band 3.
Specifically, the parallel scanning is performed on a plurality of second frequency bands supporting the parallel scanning by the terminal device, so that the time for executing the Band Sweep process by the plurality of frequency bands can be greatly reduced.
Performing scanning in the embodiment of the present application refers to performing a Band Sweep procedure.
In the frequency band scanning method of this embodiment, in a plurality of first frequency bands to be scanned by a terminal device, at least two second frequency bands supporting parallel scanning by the terminal device are determined; the scanning can be executed to at least two second frequency bands in parallel, compared with the scanning of a plurality of frequency bands executed in series in the prior art, the time consumed in the Band Sweep process can be reduced, and the network searching time of scenes such as network searching when the terminal is started, network searching when the terminal is disconnected or network searching is carried out manually can be greatly shortened.
On the basis of the above embodiment, step 202 may be implemented as follows:
and determining at least two second frequency bands which are supported by the terminal equipment to perform scanning in parallel in the plurality of first frequency bands according to the first number of parallel receiving paths supported by the terminal equipment and the frequency band information which is supported by the terminal equipment to perform scanning in parallel.
The first number of parallel receiving paths supported by the terminal device may be pre-stored by the terminal device, for example, the first number of receiving paths supported by the terminal device hardware is greater than 1.
As shown in fig. 3, the receiver includes a receiving path a, a receiving path B, and a receiving path C, and it is assumed that the receiving path a supports reception of a frequency band1, the receiving path B supports reception of a frequency band2 and a frequency band 4, and the receiving path C supports reception of a frequency band 3.
The frequency band information for performing the scanning in parallel may be pre-stored by the terminal device, or obtained by the terminal device from other devices (such as a network device), which is not limited in this embodiment of the present application.
For example, the terminal device may pre-store frequency band information supporting parallel scanning, where the frequency band information may include combination information of multiple frequency bands, such as frequency band1, frequency band2, and frequency band3, which can perform scanning in parallel, and frequency band3 and frequency band 4, which can perform scanning in parallel.
In an embodiment, the frequency band information supporting the parallel scanning and the number of parallel receiving paths supported by the terminal device hardware may be pre-stored in a non-volatile memory (NV) of the terminal device.
As shown in fig. 3, if there are 3 parallel receiving paths supported by hardware, the terminal device may support, at most, 3 frequency bands to perform scanning in parallel, or two frequency bands to perform scanning in parallel, which is not limited in this application, that is, the number of the frequency bands to perform scanning in parallel may be less than or equal to the first number of the parallel receiving paths.
For example, band scanning of band1 is performed using receive path a, band2 is performed using receive path B, band3 is performed using receive path C, and band1, band2, and band3 are scanned in parallel, or band1, band2 are scanned in parallel.
Assuming that the number of the first frequency bands supported by the terminal device is greater than 3, at least two frequency bands capable of being scanned in parallel are determined from the plurality of first frequency bands, assuming that the frequency band1, the frequency band2 and the frequency band3 can be scanned in parallel, and the frequency band3 and the frequency band 4 can be scanned in parallel. The frequency band1, the frequency band2, and the frequency band3 may be used as the second frequency band to perform parallel scanning, and if the frequency band1 and/or the frequency band2 is scanned first, the frequency band3 and the frequency band 4 may also continue to be scanned in parallel.
In the above specific embodiment, according to the parallel receiving path supported by the terminal device hardware and the frequency Band information supporting the parallel execution of scanning, it is determined which frequency bands can be scanned on the receiving path in parallel, and compared with the prior art in which scanning of multiple frequency bands is executed serially, time consumed in the Band Sweep process can be reduced, and the network searching time in the scenarios such as network searching when the terminal is started, network searching when the terminal is disconnected, or network searching when the terminal is manually searched can be greatly shortened.
In an embodiment, determining, in the plurality of first frequency bands, at least two second frequency bands in which the terminal device supports parallel scanning may specifically be implemented as follows:
determining the number of frequency bands in at least one frequency band combination which is supported by the terminal equipment and performs scanning in parallel according to the frequency band information which is supported by the terminal equipment and performs scanning in parallel; each frequency band combination comprises at least two first frequency bands, and the at least two first frequency bands are frequency bands which are supported by the terminal equipment and are used for executing scanning in parallel;
and determining at least two second frequency bands which are supported by the terminal equipment to perform scanning in parallel in at least one frequency band combination according to the number of the frequency bands in the at least one frequency band combination and the first number of parallel receiving paths supported by the terminal equipment.
Specifically, according to the frequency band information of the parallel execution scanning supported by the terminal device, one or more frequency band combinations of the parallel execution scanning supported by the terminal device can be determined, and then the frequency band number in each frequency band combination, that is, the number of frequency bands included in each frequency band combination, is determined; the frequency band combination at least comprises two first frequency bands, and the plurality of first frequency bands can be scanned in parallel.
Further, according to the number of frequency bands in each frequency band combination and the first number of parallel receiving paths supported by the terminal device, at least two second frequency bands which are supported by the terminal device to perform scanning in parallel are determined in at least one of the frequency band combinations.
For example, the frequency band combination information supported by the terminal device is as follows: the frequency band combination 1 includes: frequency band1, frequency band2 and frequency band3, i.e. frequency band1, frequency band2 and frequency band3 can carry out the scanning in parallel, and frequency band combination 2 includes: the band3 and the band 4, i.e., the band3 and the band 4, can perform scanning in parallel.
Assuming that the first number of parallel receiving paths supported by the terminal device is 3, that is, the terminal device can simultaneously support at most 3 frequency bands to perform scanning in parallel, the frequency band in the frequency band combination 1 may be selected to perform scanning in parallel, that is, the frequency band in the frequency band combination 1 is used as the second frequency band, or the frequency band in the frequency band combination 2 may be selected to perform scanning in parallel, that is, the frequency band in the frequency band combination 2 is used as the second frequency band.
Further, according to the number of frequency bands in at least one frequency band combination and the first number of parallel receiving paths supported by the terminal device, at least two second frequency bands that the terminal device supports parallel scanning in at least one of the frequency band combinations may be specifically implemented as follows:
if the second number is greater than or equal to the first number, selecting the first frequency band with the first number from any frequency band combination as the second frequency band; the second number is the minimum value of the number of the frequency bands of each frequency band combination;
if the third number is less than or equal to the first number, taking the first frequency band in any frequency band combination as the second frequency band; the third number is the maximum value of the number of the frequency bands of each frequency band combination;
if the second number is smaller than the first number and the third number is larger than the first number, selecting the first frequency bands of the first number from the frequency band combinations of which the frequency band numbers are larger than the first number as the second frequency bands.
Specifically, the final second frequency band is selected according to the relationship between the number of frequency bands in each frequency band combination and the first number of parallel receiving paths supported by the terminal device.
If the minimum value of the frequency band numbers of each frequency band combination is greater than or equal to the first number, for example, the first number of parallel receiving paths supported by the terminal device is 2, and the minimum value of the frequency band numbers of each frequency band combination is 3, assuming that there are two frequency band combinations, where the frequency band combination 1 includes a frequency band1, a frequency band2, and a frequency band3, and the frequency band combination 2 includes a frequency band 4, a frequency band 5, and a frequency band 6, then the first number of frequency bands are selected as the second frequency band in any frequency band combination, that is, 2 frequency bands are selected as the second frequency band in any frequency band combination.
If the maximum value of the number of frequency bands of each frequency band combination is less than or equal to the first number, for example, the first number of parallel receiving paths supported by the terminal device is 3, and the maximum value of the number of frequency bands of each frequency band combination is 2, assuming that there are two frequency band combinations, the frequency band combination 1 includes a frequency band1 and a frequency band2, and the frequency band combination 2 includes a frequency band3 and a frequency band 4, then selecting a frequency band in any frequency band combination as the second frequency band, for example, selecting all frequency bands in the frequency band combination 1 as the second frequency band.
If the minimum value of the frequency band numbers of each frequency band combination is smaller than the first number and the maximum value is larger than the first number, for example, the first number of parallel receiving paths supported by the terminal device is 3, the minimum value of the number of frequency bands of each frequency band combination is 2, and the maximum value of the number of frequency bands of each frequency band combination is 4, assuming that there are a plurality of frequency band combinations, the frequency band combination 1 includes a frequency band1 and a frequency band2, the frequency band combination 2 includes a frequency band3, a frequency band 4 and a frequency band 5, the frequency band combination 3 includes a frequency band 6, a frequency band 7, a frequency band 8 and a frequency band 9, a first number of frequency bands is selected as the second frequency band among a combination of frequency bands whose number is greater than or equal to the first number, for example the combination of frequency bands with a number of frequency bands greater than or equal to the first number is frequency band combination 2 and frequency band combination 3, then 3 bands are selected as the second band from any of band combination 2 and band combination 3.
In an embodiment, the method of this embodiment further includes:
after at least one of the at least two second frequency bands is scanned, determining a fourth frequency band which is supported by the terminal device to execute scanning in parallel with the third frequency band; wherein, the third frequency band is a frequency band which is not scanned in the at least two second frequency bands;
performing a scan of the fourth frequency band.
Specifically, when a plurality of second frequency bands are scanned in parallel, it is possible that some of the second frequency bands are scanned, and in order to make full use of hardware resources and improve efficiency, after some second frequency bands are scanned, other frequency bands not scanned may be scanned in parallel with the frequency band being scanned. That is, one or more fourth bands are selected from the bands in which scanning is not performed, and scanning is performed in parallel with the third bands in which scanning is not performed in the second band.
The number of the fourth frequency bands may be equal to or smaller than the second frequency band that has been scanned, which is not limited in the embodiment of the present application.
For example, assuming that band1, band2 and band3 may be scanned in parallel, band1, band2 and band 4 may be scanned in parallel. And if the frequency band1 and the frequency band2 in the frequency band1 and the frequency band2 which execute the parallel scanning and the frequency band3 finish the scanning, selecting the frequency band 4 to scan with the frequency band1 and the frequency band2 in parallel.
For example, if the bandwidth of band3 is smaller than the bandwidth of band1 and band2, then band3 will generally be scanned first.
In the above embodiment, for the plurality of second frequency bands scanned in parallel, part of the second frequency bands are scanned completely, and the fourth frequency Band and the frequency Band that is not scanned completely in the plurality of second frequency bands are selected for scanning in parallel, without waiting for the completion of scanning of all the plurality of second frequency bands, so that the efficiency can be further improved, and the execution time of the Band Sweep process can be saved.
In one embodiment, step 202 may be implemented as follows:
distributing the scanning process of each second frequency band to the corresponding execution module;
and executing scanning in parallel by using the corresponding receiving paths through the corresponding executing modules of the second frequency bands.
Specifically, as shown in fig. 4, the terminal device initiates a Band Sweep process, performs matching operation according to a parallel receiving path supported by the terminal device hardware and frequency Band information for performing scanning in parallel, and in combination with all frequency Band information for performing the Band Sweep process, determines which frequency bands can perform scanning in parallel, and distributes the frequency bands to respective corresponding execution modules, and executes the Band Sweep sub-process of each frequency Band through the respective corresponding execution modules. And each execution module reports the result after executing the Band Sweep subprocess. The above steps in fig. 4 may be executed by a Physical Layer (PHY) module, and report the result to a Radio Resource Control (RRC) module.
In this embodiment, for a terminal supporting a plurality of communication systems, especially for 4G and 5G systems which have been developed rapidly in recent years, to support carrier aggregation CA, the number of reception paths supported by hardware is generally greater than 1, and therefore, on the reception path of hardware, the possibility of multiband concurrent scanning is supported. Therefore, according to the parallel receiving path supported by the terminal device hardware and the frequency Band information supporting the parallel execution of scanning, the method can be disassembled into a plurality of Band Sweep sub-processes based on the frequency Band and distributed to the receiving paths supporting different frequency bands. Therefore, in the Band Sweep process, the frequency Band combination capability of the terminal equipment is fully utilized to complete parallel scanning, and the network searching time can be greatly shortened.
In an embodiment, after step 202, information of at least two second frequency bands may also be stored in the frequency band information where the scanning has been performed.
When the remaining frequency bands are scanned, the frequency bands not scanned can be selected by using the information of the frequency bands already scanned.
In an embodiment, a radio resource control RRC module of a terminal device sends a frequency band scanning request to a physical layer PHY module of the terminal device; the frequency band scanning request comprises: the plurality of first frequency bands;
and the PHY module determines at least two second frequency bands which are supported by the terminal equipment to execute scanning in parallel in the plurality of first frequency bands according to the first number of parallel receiving channels supported by the terminal equipment and the frequency band information which is supported by the terminal equipment to execute scanning in parallel.
Specifically, the RRC module sends a scanning request for a plurality of first frequency bands to the PHY module, and the PHY module determines that the terminal device supports at least two second frequency bands for performing scanning in parallel.
In an embodiment, the PHY module performs scanning on the at least two second frequency bands in parallel, and sends a scanning result of each of the second frequency bands to the RRC module.
For example, taking the NR system as an example, the frequency bands supported by the terminal device are three frequency bands N78, N79, and N41. The three frequency bands can be received in parallel on the receiving path.
When the network is found and the Band Sweep process is initiated, the NR RRC module sends the information of the three frequency bands to the NRPHY module.
The NR PHY module will obtain, according to NV, parallel receiving paths supported by the current terminal device and frequency Band information for performing scanning in parallel, for example, if there are 3 parallel receiving paths, N78, N79, and N41 may perform scanning in parallel, the NR PHY module performs a Band Sweep sub-process of N78, N79, and N41; each sub-process will use its own independent receive path to complete the reception of the bandsweet sub-process.
Fig. 5 is a structural diagram of an embodiment of a frequency band scanning device provided in the present application, and as shown in fig. 5, the frequency band scanning device of the present embodiment includes:
a determining module 501, configured to determine, in a plurality of first frequency bands to be scanned by a terminal device, at least two second frequency bands that the terminal device supports parallel scanning;
a processing module 502, configured to perform scanning on the at least two second frequency bands in parallel.
In a possible implementation manner, the determining module 501 is specifically configured to:
and determining at least two second frequency bands which are supported by the terminal device to perform scanning in parallel in the plurality of first frequency bands according to the number of parallel receiving paths supported by the terminal device and the frequency band information which is supported by the terminal device to perform scanning in parallel.
In a possible implementation manner, the determining module 501 is specifically configured to:
determining the number of frequency bands in at least one frequency band combination which is supported by the terminal equipment and performs scanning in parallel according to the frequency band information which is supported by the terminal equipment and performs scanning in parallel; each frequency band combination comprises at least two first frequency bands, and the at least two first frequency bands are frequency bands which are supported by the terminal equipment and are used for executing scanning in parallel;
and determining at least two second frequency bands which are supported by the terminal equipment to perform scanning in parallel in at least one frequency band combination according to the number of the frequency bands in at least one frequency band combination and the first number of parallel receiving paths supported by the terminal equipment.
In a possible implementation manner, the determining module 501 is specifically configured to:
if the second number is greater than or equal to the first number, selecting the first frequency band with the first number from any frequency band combination as the second frequency band; the second number is the minimum value of the number of the frequency bands of each frequency band combination;
if the third number is less than or equal to the first number, taking the first frequency band in any frequency band combination as the second frequency band; the third number is the maximum value of the number of the frequency bands of each frequency band combination;
if the second number is smaller than the first number and the third number is larger than the first number, selecting the first frequency bands of the first number from the frequency band combinations of which the frequency band number is larger than or equal to the first number as the second frequency bands.
In a possible implementation manner, the determining module 501 is further configured to:
after at least one of the at least two second frequency bands is scanned, determining a fourth frequency band which is supported by the terminal device to execute scanning in parallel with the third frequency band; wherein, the third frequency band is a frequency band which is not scanned in the at least two second frequency bands;
the processing module 502 is further configured to perform scanning on the fourth frequency band.
In a possible implementation manner, the processing module 502 is specifically configured to:
distributing the scanning process of each second frequency band to the corresponding execution module;
and executing scanning in parallel by using the corresponding receiving paths through the corresponding executing modules of the second frequency bands.
The execution module corresponding to each of the second frequency bands may be included in the processing module 502.
In a possible implementation manner, the determining module 501 may be implemented by a radio resource control RRC module and a PHY module of the terminal device; the radio resource control RRC module of the terminal equipment is used for sending a frequency band scanning request to a physical layer (PHY) module of the terminal equipment; the frequency band scanning request comprises: the plurality of first frequency bands;
the PHY module is configured to determine, among the plurality of first frequency bands, at least two second frequency bands in which the terminal device supports parallel execution scanning according to the first number of parallel reception paths supported by the terminal device and the frequency band information of parallel execution scanning supported by the terminal device.
In one possible implementation, the processing module 502 may be implemented by a PHY module of the terminal device;
the PHY module is configured to perform scanning on the at least two second frequency bands in parallel, and send a scanning result of each of the second frequency bands to the RRC module.
In one possible implementation, the processing module 502 is further configured to: and storing information of at least two second frequency bands in the frequency band information on which scanning is performed.
The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
Fig. 6 is a structural diagram of an embodiment of a terminal device provided in the present application, and as shown in fig. 6, the terminal device includes:
a processor 601, and a memory 602 for storing executable instructions for the processor 601.
Optionally, the method may further include: an interface 603 for enabling communication with other devices.
The above components may communicate over one or more buses.
The processor 601 is configured to execute the corresponding method in the foregoing method embodiment by executing the executable instruction, and the specific implementation process thereof may refer to the foregoing method embodiment, which is not described herein again.
The embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method in the foregoing method embodiment is implemented.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A method for frequency band scanning, comprising:
determining at least two second frequency bands which support parallel scanning execution by the terminal equipment in a plurality of first frequency bands to be scanned by the terminal equipment;
performing scanning in parallel on the at least two second frequency bands.
2. The method of claim 1, wherein the determining that the terminal device supports at least two second frequency bands for performing scanning in parallel comprises:
and determining at least two second frequency bands which are supported by the terminal device to perform scanning in parallel in the plurality of first frequency bands according to the first number of parallel receiving paths supported by the terminal device and the frequency band information which is supported by the terminal device to perform scanning in parallel.
3. The method of claim 2, wherein determining, in the plurality of first frequency bands, at least two second frequency bands in which the terminal device supports performing scanning in parallel comprises:
determining the number of frequency bands in at least one frequency band combination which is supported by the terminal equipment and performs scanning in parallel according to the frequency band information which is supported by the terminal equipment and performs scanning in parallel; each frequency band combination comprises at least two first frequency bands, and the at least two first frequency bands are frequency bands which are supported by the terminal equipment and are used for executing scanning in parallel;
and determining at least two second frequency bands which are supported by the terminal equipment to perform scanning in parallel in at least one frequency band combination according to the number of the frequency bands in at least one frequency band combination and the first number of parallel receiving paths supported by the terminal equipment.
4. The method of claim 3, wherein the determining, in at least one of the frequency band combinations, that the terminal device supports at least two second frequency bands for performing scanning in parallel comprises:
if the second number is greater than or equal to the first number, selecting the first frequency band with the first number from any frequency band combination as the second frequency band; the second number is the minimum value of the number of the frequency bands of each frequency band combination;
if the third number is less than or equal to the first number, taking the first frequency band in any frequency band combination as the second frequency band; the third number is the maximum value of the number of the frequency bands of each frequency band combination;
if the second number is smaller than the first number and the third number is larger than the first number, selecting the first frequency bands of the first number from the frequency band combinations of which the frequency band number is larger than or equal to the first number as the second frequency bands.
5. The method according to any one of claims 1-4, further comprising:
after at least one of the at least two second frequency bands is scanned, determining a fourth frequency band which is supported by the terminal device to execute scanning in parallel with the third frequency band; wherein, the third frequency band is a frequency band which is not scanned in the at least two second frequency bands;
performing a scan of the fourth frequency band.
6. The method according to any of claims 1-4, wherein said performing a scan of said at least two second frequency bands in parallel comprises:
distributing the scanning process of each second frequency band to the corresponding execution module;
and executing scanning in parallel by using the corresponding receiving paths through the corresponding executing modules of the second frequency bands.
7. The method according to any of claims 1-4, wherein the determining that the terminal device supports at least two second frequency bands for performing scanning in parallel comprises:
a Radio Resource Control (RRC) module of the terminal equipment sends a frequency band scanning request to a physical layer (PHY) module of the terminal equipment; the frequency band scanning request comprises: the plurality of first frequency bands;
and the PHY module determines at least two second frequency bands which are supported by the terminal equipment to execute scanning in parallel in the plurality of first frequency bands according to the first number of parallel receiving channels supported by the terminal equipment and the frequency band information which is supported by the terminal equipment to execute scanning in parallel.
8. The method according to any of claims 1-4, wherein said performing a scan of said at least two second frequency bands in parallel comprises:
the PHY module performs scanning on the at least two second frequency bands in parallel, and sends the scanning result of each second frequency band to the RRC module.
9. The method according to any of claims 1-4, wherein after performing the scanning for the at least two second frequency bands in parallel, further comprising:
and storing information of at least two second frequency bands in the frequency band information on which scanning is performed.
10. A frequency band scanning apparatus, comprising:
the terminal equipment comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining at least two second frequency bands which support parallel execution of scanning in a plurality of first frequency bands to be scanned by the terminal equipment;
and the processing module is used for executing scanning on the at least two second frequency bands in parallel.
11. A terminal device, comprising:
a processor, a memory, an interface to communicate with other devices;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored by the memory, causing the processor to perform the method of any of claims 1 to 9.
12. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, perform the method of any one of claims 1 to 9.
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