CN111654875B - Frequency band scanning method, device, equipment and storage medium - Google Patents

Frequency band scanning method, device, equipment and storage medium Download PDF

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Publication number
CN111654875B
CN111654875B CN202010567801.1A CN202010567801A CN111654875B CN 111654875 B CN111654875 B CN 111654875B CN 202010567801 A CN202010567801 A CN 202010567801A CN 111654875 B CN111654875 B CN 111654875B
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frequency band
scanning
parallel
terminal equipment
module
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CN111654875A (en
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孙强
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a frequency band scanning method, a device, equipment and a storage medium, wherein the method is applied to terminal equipment, a first user identification card and a second user identification card are arranged in the terminal equipment, and the method comprises the following steps: when a first frequency band of a first user identification card is scanned, determining whether a terminal device supports the first frequency band and a second frequency band which is executing scanning to execute scanning in parallel; the second frequency band is a frequency band for the second user identification card to perform scanning; and if the terminal equipment supports the first frequency band and the second frequency band to perform scanning in parallel, performing scanning on the first frequency band. According to the scheme, the frequency bands of the plurality of user identification cards can be scanned in parallel, the time of the whole Band Sweep process of the plurality of user identification cards is reduced, and the time for finding or reselecting the network by the terminal equipment is further reduced.

Description

Frequency band scanning method, device, equipment and storage medium
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 the 4G/5G communication system is wider and wider, and the supported spectrum resources are more and more. Usually, when a terminal is powered on to find a network, or loses the network to find the network again, or a user manually selects the network, a frequency Band scanning (Band Sweep) process is performed. The Band Sweep process refers to the process of scanning a power spectrum of a frequency 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, for a terminal supporting multiple subscriber identity cards, when one subscriber identity card initiates a Band Sweep process, another subscriber identity card may wait (pending) first when initiating the Band Sweep process, and after the previous subscriber identity card completes the Band Sweep process, the Band Sweep process is continued, which results in a long time for another subscriber identity card to access or select a network.
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 the time consumption of a Band Sweep process is reduced.
In a first aspect, the present application provides a frequency band scanning method, which is applied to a terminal device, where a first user identification card and a second user identification card are arranged in the terminal device, and the method includes:
when a first frequency band of a first user identification card is scanned, determining whether the terminal equipment supports the first frequency band and a second frequency band which is executing scanning to execute scanning in parallel; the second frequency band is a frequency band for the second user identification card to perform scanning;
and if the terminal equipment supports the first frequency band and the second frequency band to perform scanning in parallel, performing scanning on the first frequency band.
In a possible implementation manner, the determining whether the terminal device supports the first frequency band to perform scanning in parallel with a second frequency band in which scanning is being performed includes:
and determining whether the terminal equipment supports the parallel execution scanning of the first frequency band and the second frequency band according to the frequency band information supported by the terminal equipment and used for the parallel execution scanning.
In a possible implementation manner, the determining whether the terminal device supports the first frequency band to perform scanning in parallel with a second frequency band in which scanning is being performed includes:
determining whether the second frequency band in which scanning is being performed exists;
and if the second frequency band exists, determining whether the terminal equipment supports the first frequency band and the second frequency band to execute scanning in parallel.
In one possible implementation, the method further includes:
if the terminal equipment does not support the first frequency band and the second frequency band to execute scanning in parallel, determining that the terminal equipment supports a third frequency band which executes scanning in parallel with the second frequency band; the third frequency band is a frequency band to be scanned by the first subscriber identity module card;
performing a scan of the third frequency band.
In a second aspect, the present application provides a frequency band scanning device, which is applied to a terminal device, where a first user identification card and a second user identification card are disposed in the terminal device, and the device includes:
the terminal equipment comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining whether the terminal equipment supports a first frequency band of a first subscriber identity module card to perform scanning in parallel with a second frequency band which is performing scanning when the terminal equipment scans the first frequency band; the second frequency band is a frequency band for the second user identification card to perform scanning;
and the processing module is used for executing the scanning of the first frequency band if the determining module determines that the terminal device supports the first frequency band and the second frequency band to execute the scanning 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 described in 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 executing computer executable instructions stored by the memory causes the processor to perform the method of any one of the first aspects.
According to the frequency Band scanning method, the frequency Band scanning device and the storage medium, when a first frequency Band of a first user identification card is scanned, whether the terminal device supports the first frequency Band and a second frequency Band which is executing scanning to execute scanning in parallel is determined, wherein the second frequency Band is the frequency Band which is executing scanning of a second user identification card, if the second frequency Band supports the first frequency Band and the second frequency Band, the first frequency Band and the second frequency Band can be executed in parallel, compared with the prior art in which two cards execute scanning in series, time consumed in the whole Band Sweep process of multiple cards can be reduced, and network searching or network re-selecting time of the multiple cards 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 flowchart of another embodiment of a frequency band scanning method provided in the present application;
fig. 5 is a schematic diagram of another embodiment of a frequency band scanning method provided in the present application;
fig. 6 is a schematic structural diagram of an embodiment of a frequency band scanning apparatus provided in the present application;
fig. 7 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 "including" and "having," and any variations thereof in the description and claims of this application and the drawings described herein, are intended to cover a non-exclusive inclusion. 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 but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
First, the nouns and application scenarios referred to in the present application will be introduced:
band Sweep procedure (also known as cell search procedure or powersweep procedure): in the application, after a terminal device is started up to find a network, and a network is found after the network is dropped or is manually searched, energy sorting is performed based on power spectrum scanning of a certain frequency band, and then the whole process of Cell Search (CS) based on the energy sorting in the frequency band is initiated.
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 (otherwise known as "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 Equipment (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 communication (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-generation evolved NodeB (next generation evolved node b), an Access Point (AP, AP) or a relay Station in WLAN, a gbb in 5G NR, a gsb in future communication network, and the like.
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.
Wherein, terminal equipment can be for arbitrary electronic equipment that has the mobile communication function, for example smart mobile phone, panel computer, notebook computer, intelligent glasses, intelligent bracelet etc.. The terminal device is configured with a card slot into which a user Identity Module (SIM) card can be inserted, and the user Identity Module card may be, for example, a Subscriber Identity Module (SIM) card, a Universal Subscriber Identity Module (USIM) card, an Embedded SIM card (Embedded-SIM), or other user Identity modules.
In the related art, for a terminal supporting multiple user identity cards, when one user identity card initiates a Band Sweep process, another user identity card waits (pending) first when initiating the Band Sweep process, and after the previous user identity card completes the Band Sweep process, the Band Sweep process is continued, that is, the Band Sweep affects network searching or network re-selection time of the other user identity card, and the overall Band Sweep process of the two user identity cards consumes a long time.
For example, in an LTE + NR scenario, it is assumed that an NR card initiates scanning first, there are many frequency bands supported by NR, and cell search needs to be performed according to energy sorting results of all frequency bands after power spectrum scanning of all frequency bands is completed, which is long in time.
According to the method, the Band Sweep process is executed in parallel through the plurality of user identity identification cards, so that the time for the plurality of user identity identification cards to execute the Band Sweep process is reduced, the execution time of the Band Sweep process with the plurality of cards can be greatly saved, and the time of scenes such as starting up, finding networks in a network switching-off mode or manually searching networks in a terminal device 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 in this embodiment is applied to a terminal device, where the terminal device is provided with a first user identification card and a second user identification card, and includes:
step 201, when scanning is performed for a first frequency band of a first subscriber identity module card, determining whether a terminal device supports the first frequency band and performs scanning in parallel with a second frequency band on which scanning is being performed; the second frequency band is a frequency band for the second subscriber identity module card to scan.
The embodiment of the application can be applied to terminal equipment provided with a plurality of user identification cards, for example, a first user identification card and a second user identification card are arranged, and the number of the user identification cards is not limited in the application.
In the embodiment of the application, the Band Sweep process of a plurality of user identity identification cards is completed in parallel to the greatest extent by using the frequency Band combination capability supported by the terminal equipment, namely the frequency Band information supported by the terminal equipment for parallel scanning execution.
Specifically, when a first frequency band of a first subscriber identity module card (hereinafter, referred to as a card 1) is scanned, it is determined whether the terminal device supports the first frequency band and performs scanning in parallel with a second frequency band in which scanning is being performed, where the second frequency band is a frequency band in which scanning is performed by a second subscriber identity module card (hereinafter, referred to as a card 2).
The number of the second frequency bands in which scanning is being performed may be one or more, which is not limited in this application.
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 the hardware of the terminal device is generally greater than 1, and therefore, on the reception paths of the hardware, the possibility of performing scanning in parallel in multiple frequency bands is supported. When the terminal device scans the frequency bands of a plurality of user identification cards, the frequency bands of the plurality of user identification cards can be scanned in parallel in order to reduce the time for scanning the whole frequency band.
In an embodiment, the number of parallel receiving paths supported by the terminal device hardware may be equal to the number of the set user identification cards, or may be greater than or less than the number of the user identification cards, which is not limited in this embodiment of the present application.
For example, the number of parallel receiving paths supported by the terminal device hardware is equal to the number of the user identification cards set by the terminal device, for example, 2, that is, the terminal device supports two frequency bands to perform scanning in parallel.
As shown in fig. 3, a receiving path a and a receiving path B are included, and it is assumed that the receiving path a supports reception of the band 1 and the band 2 and the receiving path B supports reception of the band 3 and the band 4.
The frequency band information for performing the scanning in parallel may be pre-stored by the terminal device, or the terminal device may obtain the frequency band information 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 performing scanning in parallel, for example, frequency band 1 and frequency band 3 can perform scanning in parallel, frequency band 2 and frequency band 3 can perform scanning in parallel, and frequency band 1 and frequency band 4 can perform scanning in parallel.
In an embodiment, the frequency band information supporting the parallel scanning and the number of receiving channels supported by the terminal device hardware may be pre-stored in a non-volatile memory (NV) of the terminal device.
In an embodiment, for example, two frequency bands, one high frequency and one low frequency, are scanned in parallel, or, for example, the devices on the receive path of the two frequency bands are scanned in parallel without multiplexing.
Step 202, if the terminal device supports the first frequency band and the second frequency band to perform scanning in parallel, performing scanning on the first frequency band.
If the terminal device supports the first frequency band and the second frequency band to perform scanning in parallel, the terminal device performs scanning on the first frequency band, and at the moment, the first frequency band and the second frequency band perform scanning in parallel.
Further, if the terminal device does not support the first frequency band and the second frequency band to perform scanning in parallel, the frequency band to be scanned by the first subscriber identity module card may be replaced, and the terminal device supports the replaced frequency band and the second frequency band to perform scanning in parallel.
Therefore, the time for executing the Band Sweep process by multiple cards can be greatly reduced, and the network searching or selecting time of multiple cards is greatly shortened.
In an embodiment, after the second frequency band of the second subscriber identity card of the terminal device is scanned, it is determined whether other frequency bands corresponding to the second subscriber identity card can be scanned in parallel with the first frequency band of the first subscriber identity card, that is, it may be selected that the terminal device supports other frequency bands (one or more, depending on the number of parallel receiving channels supported by the terminal device) corresponding to the second subscriber identity card that is scanned in parallel with the first frequency band, if the terminal device supports other frequency bands corresponding to the second subscriber identity card to be scanned in parallel with the first frequency band, the parallel scanning is continuously performed, and so on, until the plurality of frequency bands of the plurality of subscriber identity cards are scanned.
In the frequency Band scanning method of the embodiment, when scanning is performed on a first frequency Band of a first subscriber identity module card, it is determined whether a terminal device supports the first frequency Band and a second frequency Band which is performing scanning in parallel, wherein the second frequency Band is a frequency Band in which the second subscriber identity module card performs scanning, and if so, the scanning of the first frequency Band and the second frequency Band can be performed in parallel.
In an embodiment, when scanning is performed on a frequency band to be scanned of a first subscriber identity module card, a first frequency band which is supported by a terminal device and is scanned in parallel with a second frequency band in which scanning is being performed is selected; the second frequency band is a frequency band for scanning by the second subscriber identity module card;
performing a scan of the first frequency band.
Specifically, the first frequency band may be one frequency band or multiple frequency bands, and the first frequency band may be determined according to frequency band information that is supported by the terminal device and is used for performing scanning in parallel, and the number of parallel receiving paths supported by the terminal device.
The number of parallel receiving paths supported by the terminal device may be pre-stored by the terminal device, for example, the number of receiving paths supported by the terminal device hardware is equal to or greater than 2.
As shown in fig. 3, it is assumed that the reception path a supports reception of the frequency bands 1 and 3, and the reception path B supports reception of the frequency bands 2 and 4.
The frequency band information for performing the scanning in parallel may be pre-stored by the terminal device, or the terminal device may obtain the frequency band information 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 performing scanning in parallel, where the frequency band information may include combination information of multiple frequency bands, such as frequency band 1, frequency band 2, and frequency band 3, which can perform scanning in parallel, and frequency band 3 and frequency band 4, which can perform scanning in parallel.
For example, the terminal device performs scanning for band 2 of card 2, at which time it may choose to perform parallel scanning for band 1 or band 3 of card 1.
On the basis of the above embodiment, step 201 can be implemented as follows:
and determining whether the terminal equipment supports the parallel execution scanning of the first frequency band and the second frequency band according to the frequency band information supported by the terminal equipment and used for the parallel execution scanning.
The frequency band information for performing scanning in parallel supported by the terminal device includes, for example, which combinations of frequency bands can perform scanning in parallel.
Assuming that a card 1 is ready to initiate a Band Sweep process, determining a first frequency Band (set as frequency Band 1) to be executed with the Band Sweep; inquiring whether a Band condition of a Band Sweep process which is being executed exists at present, namely whether a second frequency Band (set as a frequency Band 2) which is being scanned exists, wherein the frequency Band 2 is a frequency Band of the card 2 which is being scanned; if there is no second frequency Band in which scanning is being performed, a Band Sweep procedure of frequency Band 1 is directly initiated.
If there is a second frequency band which is executing scanning, determining whether the frequency band 1 and the current frequency band 2 can execute scanning in parallel according to the frequency band information (frequency band combination capability supported by the terminal device) which is supported by the terminal device and executes scanning in parallel, that is, whether the terminal device supports the frequency band 1 and the current frequency band 2 to execute scanning in parallel; and if the frequency Band 1 and the current frequency Band 2 are supported to execute scanning in parallel, executing a Band Sweep process of the frequency Band 1, and acquiring a result.
The behavior of the first user identification card and the second user identification card initiating the Band Sweep process is arbitrary, and may be the same time, or one card may be in front of the other, and one card is behind the other.
In an embodiment, if there is a second frequency band in which scanning is being performed, it is determined that the terminal device supports a first frequency band in which scanning is performed in parallel with the second frequency band; the first frequency band is a frequency band for the first user identification card to perform scanning; the second frequency band is a frequency band for the second user identification card to perform scanning;
performing a scan of the first frequency band.
Specifically, assuming that the card 2 has already started the Band Sweep process, the card 1 performs scanning in parallel by combining with the frequency Band 2 of the card 2 that is performing the Band Sweep process, that is, it is necessary to determine the frequency Band in which the card 1 preferentially performs the Band Sweep process, that is, the frequency Band 1 that can perform scanning in parallel with the frequency Band 2 of the card 2 that is performing scanning. Further, when the card 2 completes the Band Sweep procedure of the current Band 2 and starts the Band Sweep procedure of the next Band, the card 2 may also combine with the Band 1 of the Band Sweep procedure being executed by the card 1 to determine the next Band to execute the Band Sweep procedure.
Before determining whether the terminal device supports the first frequency band and the second frequency band to perform scanning in parallel, it is required to determine whether the second frequency band which is performing scanning exists; and if the second frequency band exists, executing a step of determining whether the terminal equipment supports the first frequency band and the second frequency band to execute scanning in parallel.
And if the second frequency band in which the scanning is executed does not exist, directly executing the scanning of the first frequency band.
In other embodiments, after determining that the second frequency band exists, it may further be determined whether the second frequency band is different from the first frequency band;
and if the frequency bands are different, determining whether the terminal equipment supports the first frequency band and the second frequency band which is executing scanning to execute scanning in parallel.
And if the first frequency band and the second frequency band are determined to be the same frequency band, directly obtaining a scanning result of the second frequency band. The scanning of the first frequency band need not be performed.
In an embodiment, after step 202, information of the first frequency band may be further stored in the frequency band information for which the scanning has been performed.
When scanning the next frequency band, the frequency band not to be scanned may be selected by using the information of the frequency band to be scanned.
Further, if the terminal device does not support the first frequency band and the second frequency band to perform scanning in parallel, determining that the terminal device supports a third frequency band to perform scanning in parallel with the second frequency band; the third frequency band is a frequency band to be scanned by the first subscriber identity module card;
performing a scan of the third frequency band.
Specifically, if it is determined that the terminal device does not support the Band 1 and the current Band 2 to perform scanning in parallel, in order to improve the efficiency of performing Band Sweep on multiple cards, the third Band 3 capable of performing scanning in parallel with the current Band 2 is further determined according to the information of the bands supported by the terminal device, that is, the Band 3 supported by the terminal device and the current Band 2 perform scanning in parallel, and the Band 3 does not perform overscan, that is, a Band capable of performing scanning in parallel with the Band 2 is selected as much as possible. The frequency band 3 is a frequency band to be scanned by the first subscriber identity module card.
The scanning is performed in parallel for band 2 and band 3.
The method of the embodiment of the application supports Carrier Aggregation (CA) for terminals supporting a plurality of communication systems, especially for 4G and 5G systems which are developed at a high speed in recent years, and supports the possibility of multi-band concurrent reception on a hardware receiving path. Therefore, multiple cards can complete the Band Sweep process in parallel according to the frequency Band combination capability, namely, multiple frequency bands can execute scanning in parallel as much as possible, and the network searching time of the multiple cards is greatly shortened.
As shown in fig. 4, it is assumed that the card 1 starts to initiate a Band Sweep process, and determines whether to issue a Band Sweep process request for the first time;
if the request of the Band Sweep process is issued for the first time or the request is not the last frequency Band (or the last frequency Band but the result is not received), generating a frequency Band sequence of the Band Sweep process according to the information of the frequency Band to be scanned and issuing an execution module; for example, the frequency band to be currently scanned is frequency band 1, and the frequency band to be scanned next is frequency band 3, or the frequency band to be currently scanned is determined, for example, frequency band 1.
Inquiring whether a Band condition for executing a Band Sweep process exists; if there is a currently executed frequency band, determining whether parallel execution is possible according to a frequency band combination capability (i.e., frequency band information of parallel execution scanning supported by the terminal device), for example, determining whether parallel execution is possible between a frequency band 1 and a currently executed frequency band 2; if the frequency bands can be executed in parallel or if no frequency Band is currently executed, the frequency Band which is currently executed by the card 1 is updated, then the frequency Band 1 is scanned, and the result of the Band Sweep process of the current frequency Band 1 is reported.
If the parallel execution cannot be performed, the frequency band is changed, for example, the next frequency band 3 is changed, whether the frequency band 3 and the currently executed frequency band 2 can be performed in parallel or not is judged, and the process similar to the frequency band 1 is repeatedly performed.
Further, after the Band Sweep procedure of the Band 3 is executed, if there is no currently executed Band at this time, or if the Band 1 and other currently executed bands can be executed in parallel, the Band Sweep procedure of the Band 1 is continuously executed.
Fig. 4 shows the logic of the Band Sweep process inside one user id card, that is, each time the Band Sweep process is initiated, it is necessary to query whether another card has the frequency Band occupation situation of the Band Sweep process, if so, the frequency Band needs to be changed, otherwise, the execution can be performed in parallel.
In an embodiment, a Radio Resource Control (RRC) module of a terminal device sends a scanning request for a first frequency band to a Physical Layer (PHY) module of the terminal device;
the PHY module determines whether there is a second frequency band in which scanning is being performed.
Specifically, the RRC module sends a scanning request for a first frequency band to the PHY module, the PHY module determines whether a second frequency band exists in which scanning is being performed, and the PHY module may further determine whether the terminal device supports parallel scanning of the first frequency band and the second frequency band.
In an embodiment, if the PHY module determines that the terminal device supports the first frequency band and the second frequency band to perform scanning in parallel, the PHY module performs scanning on the first frequency band and sends a scanning result of the first frequency band to the RRC module of the terminal device.
In an embodiment, if the PHY module determines that the terminal device does not support the first frequency band and the second frequency band to perform scanning in parallel, the PHY module sends, to an RRC module of the terminal device, indication information for indicating that the RRC module determines that the terminal device supports a third frequency band to perform scanning in parallel with the second frequency band.
As shown in fig. 5, the Band sweet procedure management module may be, for example, an RRC module of an NR or LTE system, and may be implemented by other modules in other embodiments, for example, a PHY module, which is not limited in this embodiment of the present invention. The Band Sweep procedure execution module may be, for example, a PHY module or another module, which is not limited in this embodiment of the present application.
The card 1Band Sweep process management module sends a Band Sweep process request of a frequency Band 1 to the Band Sweep process execution module 1;
if the Band Sweep process execution module 1 determines that the Band Sweep process cannot be executed, it sends response information to the card 1Band Sweep process management module, and instructs the card 1Band Sweep process management module to change the frequency Band.
And if the Band Sweep process execution module 1 determines that the Band Sweep process can be executed, executing the Band Sweep process of the frequency Band 1, and reporting a Band Sweep process result to the card 1Band Sweep process management module.
When the frequency Band is replaced, the Band Sweep process management module inquires the frequency Band information of the Band Sweep process, and selects the frequency Band which does not execute the Band Sweep process.
In addition, when determining whether the Band Sweep process of the frequency Band 1 can be executed, the Band Sweep process execution module 1 needs to determine whether the terminal device supports the frequency Band 1 and performs scanning in parallel with other frequency bands in which the Band Sweep is being executed, for example, the frequency Band 2 of the card 2, and if so, the Band Sweep process execution module 1 executes the Band Sweep process of the frequency Band 1; otherwise, the Band Sweep process management module is instructed to replace the frequency Band.
The Band Sweep procedure for card 2 is similar to that for card 1, and reference is made to the description of card 1 above, and the description is omitted here.
In the above specific embodiment, when one card 1 starts the Band Sweep process first and another card 2 is started again, the frequency Band situation that the card 1 has already occupied is queried and fed back to the management module to adjust the frequency Band sequence of the Band Sweep process, that is, the frequency Band is changed. If the second frequency Band is initiated after the Band Sweep process of the first frequency Band of the card 1 is completed, the frequency Band situation occupied by the card 2 in the Band Sweep process needs to be queried to determine whether the scanning can be executed in parallel, and if not, the frequency Band sequence is adjusted to change the frequency Band.
For example, taking NR + LTE dual cards as an example, it is assumed that NR supports band N78 and band N41, and LTE supports band B41. Assume that two cards are currently in the NR system, one in the LTE system, and hereinafter referred to as NR card and LTE card. N78 corresponds to receive path a of fig. 3, and N41 and B41 correspond to receive path B of fig. 3. When an LTE card initiates a Band Sweep procedure of B41 first, then an NR card also initiates the Band Sweep procedure, and if the NR card attempts N41 first, since B41 and N41 use the same receiving path, it is determined that the frequency Band combination of B41 and N41 cannot perform scanning in parallel, and a process of feeding back and replacing the frequency Band is performed, the NR card replaces N41 with N78, and when the NR card attempts to initiate the Band Sweep procedure of N78, it is found that B41 and N78 can perform scanning in parallel, and thus the scanning of B41 and N78 is performed in parallel. After the B41 scan is completed, the NR card resumes the N41 scan.
In the embodiment of the application, the network searching strategy in the multi-card Band sweet process can be optimized by utilizing the common receiving capacity of the terminal equipment, namely parallel receiving paths, so that the execution time in the multi-card Band sweet process can be greatly saved, and the 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 is further shortened.
Fig. 6 is a structural diagram of an embodiment of a frequency band scanning device provided in the present application, and as shown in fig. 6, the frequency band scanning device of the present embodiment includes:
a determining module 601, configured to determine, when scanning a first frequency band of a first subscriber identity module card, whether the terminal device supports parallel scanning of the first frequency band and a second frequency band in which scanning is being performed; the second frequency band is a frequency band for the second user identification card to perform scanning;
a processing module 602, configured to execute scanning on the first frequency band if the determining module 601 determines that the terminal device supports the first frequency band and the second frequency band to execute scanning in parallel.
In a possible implementation manner, the determining module 601 is specifically configured to:
and determining whether the terminal equipment supports the parallel execution scanning of the first frequency band and the second frequency band according to the frequency band information supported by the terminal equipment and used for the parallel execution scanning.
In a possible implementation manner, the determining module 601 is specifically configured to:
determining whether there is the second frequency band in which scanning is being performed;
and if the second frequency band exists, determining whether the terminal equipment supports the first frequency band and the second frequency band to execute scanning in parallel.
In a possible implementation manner, the determining module 601 is further configured to:
if the terminal equipment does not support the first frequency band and the second frequency band to execute scanning in parallel, determining that the terminal equipment supports a third frequency band which executes scanning in parallel with the second frequency band; the third frequency band is a frequency band to be scanned by the first subscriber identity module card;
performing a scan of the third frequency band.
In a possible implementation manner, the determining module 601 is further configured to:
determining that the second frequency band is different from the first frequency band before determining whether the first frequency band and a second frequency band in which scanning is being performed can be scanned in parallel.
In a possible implementation manner, the determining module 601 is further configured to:
and if the first frequency band and the second frequency band are determined to be the same frequency band, directly acquiring a scanning result of the second frequency band.
In a possible implementation manner, the determining module 601 may be implemented by a radio resource control RRC module and a PHY module of a terminal device, where the radio resource control RRC module of the terminal device is configured to send a scanning request for the first frequency band to a physical layer PHY module of the terminal device;
the PHY module is configured to determine whether a second frequency band in which scanning is being performed exists.
In a possible implementation manner, if the PHY module of the terminal device determines that the terminal device does not support the first frequency band and the second frequency band to perform scanning in parallel, the PHY module is configured to send indication information to an RRC module of the terminal device, where the indication information is used to indicate the RRC module to determine that the terminal device supports a third frequency band to perform scanning in parallel with the second frequency band.
In a possible implementation manner, the processing module 602 may be implemented by a PHY module, and the PHY module of the terminal device is configured to perform scanning on the first frequency band and send a scanning result of the first frequency band to an RRC module of the terminal device.
In one possible implementation, the processing module 602 is further configured to:
and storing the information of the first frequency band in the frequency band information which is scanned.
The apparatus of this embodiment may be configured to implement the technical solutions of the method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
Fig. 7 is a structural diagram of an embodiment of a terminal device provided in the present application, and as shown in fig. 7, the terminal device includes:
a processor 701, and a memory 702 for storing executable instructions for the processor 701.
Optionally, the method may further include: an interface 703 for enabling communication with other devices.
The above components may communicate over one or more buses.
The processor 701 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 that have been 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 (11)

1. A frequency band scanning method is characterized in that the method is applied to terminal equipment, a first user identification card and a second user identification card are arranged in the terminal equipment, and the method comprises the following steps:
when a first frequency band of a first user identification card is scanned, determining whether the terminal equipment supports the first frequency band and a second frequency band which is executing scanning to execute scanning in parallel; the second frequency band is a frequency band for the second user identification card to perform scanning;
if the terminal equipment supports the first frequency band and the second frequency band to perform scanning in parallel, performing scanning on the first frequency band;
the determining whether the terminal device supports the first frequency band to perform scanning in parallel with the second frequency band on which scanning is being performed includes:
determining whether the second frequency band in which scanning is being performed exists;
if the second frequency band exists, determining whether the terminal equipment supports the first frequency band and the second frequency band to execute scanning in parallel;
if the terminal equipment does not support the first frequency band and the second frequency band to execute scanning in parallel, determining that the terminal equipment supports a third frequency band which executes scanning in parallel with the second frequency band; the third frequency band is a frequency band to be scanned by the first subscriber identity module card;
performing a scan of the third frequency band.
2. The method of claim 1, wherein the determining whether the terminal device supports the first frequency band to perform scanning in parallel with a second frequency band in which scanning is being performed comprises:
and determining whether the terminal equipment supports the parallel execution scanning of the first frequency band and the second frequency band according to the frequency band information supported by the terminal equipment and used for the parallel execution scanning.
3. The method of claim 1 or 2, wherein before determining whether the first frequency band and the second frequency band in which scanning is being performed can be scanned in parallel, the method further comprises:
and determining that the second frequency band is different from the first frequency band.
4. The method of claim 3, further comprising:
and if the first frequency band and the second frequency band are determined to be the same frequency band, directly obtaining a scanning result of the second frequency band.
5. The method of claim 1, wherein the determining whether the second frequency band exists for which scanning is being performed comprises:
a Radio Resource Control (RRC) module of the terminal equipment sends a scanning request aiming at the first frequency band to a physical layer (PHY) module of the terminal equipment;
the PHY module determines whether there is a second frequency band in which scanning is being performed.
6. The method of claim 1, wherein the determining that the terminal device supports a third frequency band in which scanning is performed in parallel with the second frequency band comprises:
if the PHY module of the terminal device determines that the terminal device does not support the first frequency band and the second frequency band to perform scanning in parallel, the PHY module sends indication information to an RRC module of the terminal device, so as to indicate the RRC module to determine a third frequency band which is supported by the terminal device and performs scanning in parallel with the second frequency band.
7. The method of claim 1 or 2, wherein the performing the scan for the first frequency band comprises:
and the PHY module of the terminal equipment executes scanning of the first frequency band and sends a scanning result of the first frequency band to the RRC module of the terminal equipment.
8. The method according to claim 1 or 2, wherein after the performing the scanning of the first frequency band, further comprising:
and storing the information of the first frequency band in the frequency band information which is scanned.
9. The utility model provides a frequency channel scanning device which characterized in that is applied to terminal equipment, be provided with first user identification card and second user identification card in the terminal equipment, the device includes:
the terminal equipment comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining whether the terminal equipment supports a first frequency band of a first subscriber identity module card to perform scanning in parallel with a second frequency band which is performing scanning when the terminal equipment scans the first frequency band; the second frequency band is a frequency band for the second user identification card to perform scanning;
the processing module is configured to perform scanning on the first frequency band if the determining module determines that the terminal device supports the first frequency band and the second frequency band to perform scanning in parallel;
the determining module is specifically configured to:
determining whether there is the second frequency band in which scanning is being performed;
if the second frequency band exists, determining whether the terminal equipment supports the first frequency band and the second frequency band to execute scanning in parallel;
the determining module is further configured to:
if the terminal equipment does not support the first frequency band and the second frequency band to execute scanning in parallel, determining that the terminal equipment supports a third frequency band which executes scanning in parallel with the second frequency band; the third frequency band is a frequency band to be scanned by the first subscriber identity module card;
performing a scan of the third frequency band.
10. A terminal device, comprising:
a processor, a memory, an interface to communicate with other devices;
the memory stores computer execution instructions;
the processor executing computer-executable instructions stored by the memory causes the processor to perform the method of any of claims 1 to 8.
11. A computer-readable storage medium having stored thereon computer-executable instructions for implementing the method of any one of claims 1 to 8 when executed by a processor.
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