WO2022067813A1 - 一种应用于终端的小区搜索方法及通信装置 - Google Patents

一种应用于终端的小区搜索方法及通信装置 Download PDF

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Publication number
WO2022067813A1
WO2022067813A1 PCT/CN2020/119744 CN2020119744W WO2022067813A1 WO 2022067813 A1 WO2022067813 A1 WO 2022067813A1 CN 2020119744 W CN2020119744 W CN 2020119744W WO 2022067813 A1 WO2022067813 A1 WO 2022067813A1
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WIPO (PCT)
Prior art keywords
frequency
terminal
frequency band
search range
plmn
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PCT/CN2020/119744
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English (en)
French (fr)
Inventor
贺小旭
杨帆
冯坤
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20955833.7A priority Critical patent/EP4207879A4/en
Priority to PCT/CN2020/119744 priority patent/WO2022067813A1/zh
Priority to CN202080014864.2A priority patent/CN114586419B/zh
Publication of WO2022067813A1 publication Critical patent/WO2022067813A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a cell search method and a communication device applied to a terminal.
  • a frequency band can be used to define a frequency search range of radio waves.
  • a communication system of the same standard such as a long term evolution (long term evolution, LTE) communication system or a new radio (new radio, NR) communication system, etc.
  • LTE long term evolution
  • NR new radio
  • the frequency point search range defined by a frequency band is fixed, and a frequency band can be assigned to at least one operator. Among them, the frequency point search range that each operator can use may also be different.
  • the frequency search range defined by frequency band 40 is [2300MHz, 2400MHz], where the frequency search range [2300MHz, 2320MHz] is configured for China Unicom, and the frequency search range [2320MHz, 2370MHz] is configured for China Mobile, the frequency search range [2370MHz, 2390MHz] is configured for China Telecom, and the frequency search range [2390MHz, 2400MHz] is reserved.
  • the terminal After the terminal is powered on, the terminal needs to search for a suitable cell as soon as possible and complete the cell camping.
  • the process from initiating a cell search to camping on a suitable cell may be referred to as a cell search procedure of the terminal.
  • the terminal if the terminal does not store the prior information or does not search for a suitable cell according to the prior information, the terminal needs to scan at least one frequency band supported by the terminal in sequence until a suitable cell is searched. For a single frequency band, the terminal needs to search all the frequency point search range defined by the frequency band, and the search time is long, which affects the user experience.
  • Embodiments of the present application provide a cell search method and a communication device applied to a terminal, which are used to reduce the time for the terminal to search for a cell.
  • an embodiment of the present application provides a cell search method applied to a terminal, and the method may be executed by the terminal, or may also be executed by a component of the terminal (eg, a processor, a chip, or a chip system).
  • the terminal in the frequency band scanning phase of the cell search, the terminal obtains one or more frequency bands corresponding to the public land mobile network (PLMN), and the frequency band corresponding to each frequency band in the one or more frequency bands.
  • PLMN public land mobile network
  • Point search range in which the number of frequency points in the frequency point search range corresponding to each frequency band is less than the total number of frequency points in each frequency band; according to the frequency point search range corresponding to each frequency band, search for suitable cell, and try to camp on the searched suitable cell.
  • the PLMN corresponds to one or more frequency bands.
  • the one frequency band may be a part of the frequency band supported by the operator corresponding to the PLMN.
  • the multiple frequency bands may be part or all of the frequency bands supported by the operator corresponding to the PLMN.
  • the operator corresponding to the PLMN can be determined by the mobile network codes (mobile network codes, MNC) in the PLMN.
  • the terminal in the frequency band scanning phase of the cell search, the terminal needs to scan all the frequency points in the frequency band supported by the terminal, that is, the full frequency band scan.
  • the terminal searches for suitable cells within the frequency point search range corresponding to each frequency band in one or more frequency bands corresponding to the PLMN, wherein the number of frequency points in the frequency point search range corresponding to each frequency band, Less than the total number of frequency points in each frequency band.
  • the terminal scans a part of the frequency points of the frequency band.
  • the time for the terminal to scan a single frequency band can be reduced.
  • the above technical solution can shorten the time for the terminal to perform frequency band scanning as a whole, thereby reducing the time for the terminal to search for cells and improving user experience.
  • the frequency points within the frequency point search range corresponding to each frequency band include some or all of the frequency points selected based on one or more of the following a priori data information: the commercial frequency points of the operator corresponding to the PLMN point information, as well as the statistics information of the frequency point where the terminal resides corresponding to the PLMN.
  • the frequency points within the frequency point search range corresponding to each frequency band may be some or all of the frequency points screened by the cloud server based on one or more prior data information, or may be the terminal itself based on one or more of the frequency points. Some or all of the frequency points selected by the prior data information.
  • the cloud server may be a base station of an operator, a server maintained by an operator, or a server maintained by a terminal manufacturer, which is not limited in this application.
  • the frequency points (or supported frequency bands) used by the operator will cover the frequency points (or frequency bands) supported by the terminal, and the frequency points in the frequency search range corresponding to the frequency band are
  • the commercial frequency information of the operator (such as all the frequencies supported by the operator) can be determined, which can shorten the cell search time and ensure that the terminal can search for a suitable cell within the frequency search range corresponding to the frequency band.
  • the terminal scans some frequency points of the frequency band, resulting in the problem of missing a suitable cell.
  • the terminal camping frequency point statistics can be obtained through big data, which can reflect the frequency point information that the terminal has camped on.
  • the frequency point search range corresponding to the frequency band can be filtered from the terminal camping frequency point statistics information, and the cell search can also be shortened. At the same time, it ensures that the terminal can search for a suitable cell within the frequency point search range corresponding to the frequency band, so as to avoid the problem of missing a suitable cell due to the terminal scanning part of the frequency point of the frequency band.
  • the frequency point search range corresponding to each frequency band is stored inside the terminal with the PLMN as an index.
  • the terminal after the terminal enters the frequency band scanning stage, it can determine the frequency point search range corresponding to each frequency band in one or more frequency bands corresponding to the PLMN according to the selected PLMN, and according to the frequency point search range corresponding to each frequency band Search for a neighborhood.
  • the storage form may include a table, text, database, or picture, etc.
  • the method may further include: the terminal receives network data from the cloud server, where the network data is used to initialize or update the frequency point search range corresponding to each frequency band inside the terminal.
  • the terminal can update or initialize the frequency point search range corresponding to each frequency band inside the terminal according to the received network data, which can be compatible with the situation that the terminal does not configure the frequency point search range corresponding to the frequency band, and avoid the network side Upgrade (such as adding a PLMN, frequency band or frequency point, etc.) and the terminal is not upgraded, so that the frequency point search range corresponding to the frequency band is unavailable.
  • the network side Upgrade such as adding a PLMN, frequency band or frequency point, etc.
  • the network data of the cloud server includes one or more of the following data information: data information of one or more frequency bands corresponding to the PLMN, the frequency band corresponding to each frequency band in the one or more frequency bands Point search range data information, one or more prior data information.
  • the terminal when the network data includes data information of one or more frequency bands corresponding to the PLMN, the terminal can upgrade the frequency point search range corresponding to each frequency band within itself according to the network data.
  • the terminal may initialize the frequency point search range corresponding to each frequency band.
  • the terminal may determine the frequency point search range corresponding to each frequency band according to the one or more a priori data information, and store each frequency band with the PLMN as an index The corresponding frequency point search range.
  • the one or more frequency bands corresponding to the PLMN include frequency bands of the new radio NR system.
  • one or more frequency bands corresponding to the PLMN may include a frequency band of an NR system, a frequency band of an LTE system, or a frequency band of other standards, which is not limited in this embodiment of the present application.
  • an embodiment of the present application provides a cell search method applied to a terminal.
  • the method may be executed by a cloud server, or may also be executed by a component of the cloud server (such as a processor, a chip, or a chip system).
  • the cloud server determines network data, and the network data is used to initialize or update the frequency point search range corresponding to each frequency band inside the terminal, wherein the number of frequency points in the frequency point search range corresponding to each frequency band is less than The number of full frequency points; the cloud server sends the network data to the terminal.
  • the network data includes one or more of the following data information: data information of one or more frequency bands corresponding to the PLMN, a frequency point search range corresponding to each frequency band in the one or more frequency bands data information, one or more prior data information.
  • the method may further include: the cloud server determines one or more a priori data information , and determine the data information of the frequency point search range corresponding to each frequency band in the one or more frequency bands according to one or more a priori data information.
  • the frequency points in the frequency point search range corresponding to each frequency band include some or all of the frequency points selected based on one or more of the following a priori data information: the commercial frequency point information of the operator, And the terminal station frequency point statistics.
  • an embodiment of the present application provides a communication device, where the communication device may be a terminal or a device in a terminal.
  • the communication apparatus may include a processing module and a cell search module, and these modules may perform corresponding functions performed by the terminal in any one of the above-mentioned design examples of the first aspect. in:
  • the processing module can be used to obtain one or more frequency bands corresponding to the PLMN in the frequency band scanning phase of the cell search, and the frequency point search range corresponding to each frequency band in the one or more frequency bands, wherein the corresponding frequency bands of each frequency band are The number of frequency points in the frequency point search range is less than the total number of frequency points in each frequency band.
  • the cell search module can be used to search for a suitable cell according to the frequency point corresponding to each frequency band, and try to camp on the searched suitable cell.
  • the PLMN corresponds to one or more frequency bands.
  • the one frequency band may be a part of the frequency band supported by the operator corresponding to the PLMN.
  • the multiple frequency bands may be part or all of the frequency bands supported by the operator corresponding to the PLMN.
  • the operator corresponding to the PLMN may be determined by the MNC in the PLMN.
  • the frequency points within the frequency point search range corresponding to each frequency band include some or all of the frequency points selected based on one or more of the following a priori data information: the commercial frequency points of the operator corresponding to the PLMN point information, as well as the statistics information of the frequency point where the terminal resides corresponding to the PLMN.
  • the frequency point search range corresponding to each frequency band is stored inside the terminal with the PLMN as an index.
  • the cell search module can also be used to: receive network data from the cloud server, where the network data is used to initialize or update the frequency point search range corresponding to each frequency band inside the terminal.
  • the network data of the cloud server includes one or more of the following data information: data information of one or more frequency bands corresponding to the PLMN, the frequency band corresponding to each frequency band in the one or more frequency bands Point search range data information, one or more prior data information.
  • the one or more frequency bands corresponding to the PLMN include frequency bands of the new radio NR system.
  • one or more frequency bands corresponding to the PLMN may include a frequency band of an NR system, a frequency band of an LTE system, or a frequency band of other standards.
  • an embodiment of the present application provides a communication device, where the communication device may be a cloud server or a device in a cloud server.
  • the communication apparatus may include a processing module and a transceiver module, and these modules may perform the corresponding functions performed by the cloud server in any one of the above-mentioned design examples of the second aspect. in:
  • the processing module can be used to determine network data, and the network data is used to initialize or update the frequency point search range corresponding to each frequency band inside the terminal, wherein the frequency point number of the frequency point search range corresponding to each frequency band is less than The number of full frequency points in each frequency band.
  • the transceiver module can be used to send the network data to the terminal.
  • the network data includes one or more of the following data information: data information of one or more frequency bands corresponding to the PLMN, a frequency point search range corresponding to each frequency band in the one or more frequency bands data information, one or more prior data information.
  • the processing module is further configured to: the cloud server determines one or more a priori data information, and determines the frequency corresponding to each frequency band in the one or more frequency bands according to the one or more a priori data information Click the data information of the search range.
  • the frequency points in the frequency point search range corresponding to each frequency band include some or all of the frequency points selected based on one or more of the following a priori data information: the commercial frequency point information of the operator, And the terminal station frequency point statistics.
  • an embodiment of the present application provides a communication device, including a logic circuit and an interface circuit. in:
  • the logic circuit can be used to obtain one or more frequency bands corresponding to the public land mobile network PLMN, and the frequency point search range corresponding to each frequency band in the one or more frequency bands, so that the communication device performs the first aspect or the first
  • the interface circuit can be used to search for a suitable cell according to the frequency point search range corresponding to each frequency band, and try to camp on the searched suitable cell; wherein, the frequency point corresponding to each frequency band
  • the frequency points in the search range include some frequency points filtered based on one or more of the following prior data information:
  • the commercial frequency point information of the operator corresponding to the PLMN and the statistics information of the terminal resident frequency point corresponding to the PLMN.
  • an embodiment of the present application provides a communication device, including a logic circuit and an interface circuit. in:
  • a logic circuit that can be used to determine network data, where the network data is used to initialize or update the frequency point search range corresponding to each frequency band inside the terminal, so that the communication device executes the method described in the second aspect or any one of the second aspects , wherein the number of frequency points in the frequency point search range corresponding to each frequency band is less than the total number of frequency points in each of the frequency bands.
  • the interface circuit can be used to send the network data to the terminal.
  • an embodiment of the present application provides a communication device, including: a memory for storing a program; a processor for executing the program stored in the memory, and when the program is executed, the communication is enabled
  • the apparatus performs the method of the first aspect or any one of the first aspects.
  • the processor includes the memory.
  • the communication device is a chip or an integrated circuit.
  • an embodiment of the present application provides a communication device, including: a memory for storing a program; a processor for executing the program stored in the memory, and when the program is executed, the communication is enabled
  • the apparatus performs the method of the second aspect or any one of the second aspects.
  • the processor includes the memory.
  • the communication device is a chip or an integrated circuit.
  • an embodiment of the present application provides a computer-readable storage medium, where computer-readable instructions are stored in the computer-readable storage medium, and when the computer-readable instructions are executed on a communication device, the communication The apparatus performs the first aspect or the method of any one of the first aspects.
  • an embodiment of the present application provides a computer-readable storage medium, where computer-readable instructions are stored in the computer-readable storage medium, and when the computer-readable instructions are executed on a communication device, the communication
  • the apparatus performs the second aspect or the method of any one of the second aspects.
  • an embodiment of the present application provides a computer program product, which, when the computer program product runs on a communication device, enables the communication device in the first aspect or the method described in any one of the first aspects.
  • an embodiment of the present application provides a computer program product that, when the computer program product runs on a communication device, enables the communication device to perform the method described in the second aspect or any one of the second aspects.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the application is applicable;
  • FIG. 2 is a schematic structural diagram of a terminal in an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a terminal searching for a cell in an embodiment of the present application
  • FIG. 4 is a schematic flowchart of a cell search method applied to a terminal according to an embodiment of the present application
  • FIG. 5 is a schematic flowchart of a method for determining a frequency point search range corresponding to a frequency band according to an embodiment of the present application
  • FIG. 6 is a schematic diagram of interaction between a cloud communication module and a modem in an embodiment of the application
  • FIG. 7 is a schematic flowchart of another method for determining a frequency point search range corresponding to a frequency band according to an embodiment of the present application
  • FIG. 8 is a schematic diagram of a third frequency point search range in an embodiment of the present application.
  • FIG. 9 is still another schematic diagram of the search range of the third frequency point in the embodiment of the present application.
  • FIG. 10 is a schematic diagram of a cell search method applied to a terminal provided by an embodiment of the present application.
  • FIG. 11 is a schematic flowchart of another cell search method applied to a terminal provided in an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 13 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 14 is still another schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 1 it is a schematic diagram of a possible network architecture to which this application applies, including a network device and at least one terminal.
  • the network device and the terminal can work on an NR communication system, wherein the terminal can communicate with the network device through the 5th generation (the 5th generation, 5G) NR communication system.
  • the network device and the terminal may also work on other communication systems, which are not limited in this embodiment of the present application.
  • the network device may be a device in a wireless network, such as a radio access network (RAN) node that accesses a terminal to the wireless network.
  • RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B) B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (base band unit) , BBU), or wireless fidelity (wireless fidelity, Wifi) access point (access point, AP), etc.
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • base band unit base
  • the network device may include a centralized unit (centralized unit, CU) node, or a distributed unit (distributed unit, DU) node, or a RAN device including a CU node and a DU node.
  • the network device may be a server, such as a single server, a server cluster, or a cloud server.
  • the device that implements the function of the network device may be a network device, or may be a device that supports the network device to implement the function, such as a chip, a circuit, or other devices.
  • a terminal also known as terminal equipment, user equipment (UE), mobile station (MS), mobile terminal (MT), etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • devices such as handheld devices with wireless connectivity, or in-vehicle devices, etc.
  • some examples of terminals are: mobile phone (mobile phone), tablet computer, notebook computer, palmtop computer, mobile internet device (MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids wireless terminals, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, etc.
  • a device that implements a function of a terminal may be a terminal, or a device that supports the terminal to implement the function, such as a chip, a circuit, or other devices.
  • the terminal may include an application processor (application processor, AP) and a modem (modem).
  • application processor application processor
  • modem modem
  • the AP may be used for the execution of an operating system (operating system, OS), a user interface, or an application program.
  • the AP may include a task scheduler (task scheduler) for scheduling the execution of tasks such as users or applications.
  • a task scheduler for scheduling the execution of tasks such as users or applications.
  • an OS related scheduler may be included in the AP to schedule execution of OS related tasks.
  • the modem may forward digital signals to analog signals and analog signals to digital signals to complete communication between the two devices.
  • digital-to-analog conversion is performed on a global system for mobile communications (GSM) signal, a code division multiple access (code division multiple access, CDMA), an LTE signal, or an NR signal.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • LTE long term evolution
  • NR NR
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • LTE long-term evolution
  • NR NR signal.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • LTE long term evolution
  • NR NR signal.
  • DSP digital signal processing
  • SRAM static random access memory
  • ACC advanced clock calibration
  • the number and types of network devices and terminals included in the communication system shown in FIG. 1 are only an example, and the embodiments of the present application are not limited thereto.
  • the communication system to which the embodiments of the present application are applied may further include more network devices, or include more terminals capable of communicating with network devices, etc., which are not shown one by one in the accompanying drawings for concise description.
  • the communication system shown in FIG. 1 although network equipment and terminals are shown, the communication system may not be limited to including network equipment and terminals, for example, may also include core network equipment or be used to carry virtual It is obvious to a person of ordinary skill in the art that these devices can realize network functions, etc., and will not be described in detail here.
  • ordinal numbers such as “first”, “second”, “third”, and “fourth” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance.
  • the word "exemplary” is used to mean serving as an example, illustration or illustration. Any embodiments or designs described in the embodiments of the present application as “exemplary” should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present a concept in a concrete way.
  • the process from initiating a cell search to camping on a suitable cell may be referred to as a cell search procedure of the terminal. As shown in Figure 3. As shown in Figure 3, the process may include:
  • the terminal determines whether prior information is stored. If the terminal determines that the prior information is stored, the terminal executes the content shown in step S32; if the terminal determines that the prior information is not stored, the terminal enters the frequency band scanning stage, that is, the terminal executes the content shown in step S34.
  • the terminal may determine whether prior information is stored by reading a subscriber identity module (SIM) card.
  • SIM subscriber identity module
  • the a priori information may include at least one frequency point, and the at least one frequency point may be the frequency point of the cell where the terminal resides, for example, the frequency point of the cell where the terminal resides before powering off.
  • the terminal searches for a cell according to the prior information.
  • the terminal may sequentially search for cells on at least one frequency point.
  • the terminal determines whether a suitable cell is found according to the prior information. If the terminal determines that a suitable cell has not been searched according to the prior information, the terminal enters the frequency band scanning phase, that is, the terminal executes the content shown in step S34; if the terminal determines to search for a suitable cell according to the prior information, the terminal executes step S35. displayed content.
  • the terminal searches for a cell on at least one frequency band supported by the terminal, and searches for a suitable cell.
  • the terminal may sequentially scan the frequency bands supported by the terminal to obtain multiple frequency points, and then sequentially search and try to camp on the multiple scanned frequency points until a suitable cell is found.
  • the frequency bands supported by the terminal are frequency band 1 and frequency band 2
  • the frequency point search range defined by frequency band 1 is frequency point search range 1
  • the frequency point search range defined by frequency band 2 is frequency point search range 2.
  • the terminal scans in the frequency point search range 1 and the frequency point search range 2 in turn, and obtains the frequency point 1, the frequency point 2 and the frequency point 3.
  • the terminal searches for cells on frequency point 1, frequency point 2 and frequency point 3 in sequence.
  • the terminal searches for a cell on frequency point 1 first, but no suitable cell is found.
  • the terminal searches for a cell on frequency point 2 and finds a suitable cell.
  • the terminal ends the search and tries to camp on the suitable cell, that is, it does not need to search for a suitable cell on frequency point 3. Search for a cell on.
  • the terminal camps on a suitable cell.
  • the terminal can obtain frequency and time synchronization with the appropriate cell by receiving the primary synchronization signal/secondary synchronization signal physical broadcast channel (synchronization signal and physical broadcast channel block, SSB), and obtain the broadcast information and network side registration of the appropriate cell. Register to camp on the suitable cell.
  • primary synchronization signal/secondary synchronization signal physical broadcast channel synchronization signal and physical broadcast channel block, SSB
  • the transmission period of the SSB of the NR communication system is 20 milliseconds (ms).
  • the transmission period of SSB is less than 20ms; on the other hand, compared with other standards, the bandwidth of the frequency band supported by NR is wider.
  • the time required for the terminal to synchronize with the cell and the time required to search the entire frequency band in the NR communication system are longer. That is, the time required for the terminal to search for the cell in the NR communication system is longer than the time required for the terminal to search for the cell in other systems, which affects the user experience.
  • the embodiments of the present application provide a cell search method applied to a terminal, so as to reduce the time for the terminal to search for a cell and improve user experience.
  • FIG. 4 is a schematic flowchart of a cell search method applied to a terminal according to an embodiment of the present application, and the method can be applied to the communication system 100 shown in FIG. 1 .
  • the terminal in this embodiment of the present application may be the terminal shown in FIG. 1 .
  • the steps performed by the terminal may also be specifically performed by a module or component of the terminal, for example, may be performed by a chip or a chip system in the terminal.
  • the method may include:
  • S401 The terminal determines the PLMN.
  • the terminal can determine the PLMN. For example, after the terminal is powered on, the terminal can determine the PLMN. For example, when the terminal is in a roaming state, the terminal can determine the PLMN. For example, when the terminal is in a scenario with weak network coverage, such as a basement, an elevator, or a tunnel, the terminal can determine the PLMN. For another example, the initial stage of the independent networking (standalone, SA) construction is insufficient, and the terminal can determine the PLMN.
  • SA independent networking
  • the terminal may determine the PLMN.
  • the PLMN may correspond to one or more frequency bands.
  • PLMN 1 corresponds to Band 1
  • PLMN 2 corresponds to Band 2 and Band 3.
  • the one or more frequency bands may be part or all of the frequency bands supported by the operator corresponding to the PLMN.
  • the operator corresponding to PLMN supports 3 frequency bands, frequency band 1, frequency band 2 and frequency band 3, and frequency band 1 can be allocated to PLMN 1, and frequency band 2 and frequency band 3 can be allocated to PLMN 2.
  • the operator corresponding to the PLMN can serve the terminal.
  • the MNC in the PLMN can be used to determine the operator corresponding to the PLMN.
  • the operator corresponding to the PLMN may be China Mobile.
  • the operator corresponding to the PLMN may be China Unicom.
  • the number of operators serving the terminal may be one or more, which is not limited in this embodiment of the present application.
  • the terminal may determine a PLMN from a plurality of PLMNs maintained by itself.
  • the multiple PLMNs may be read from a SIM (or USIM) card, or stored locally, or read from a SIM (or USIM) card and stored locally.
  • the PLMN determined by the terminal may be the PLMN with the highest priority among the multiple PLMNs.
  • the terminal maintains multiple PLMNs and priorities of the multiple PLMNs.
  • the terminal may select the PLMN with the highest priority from the multiple PLMNs to perform frequency band scanning.
  • the priorities of the multiple PLMNs may be predefined, configured by an operator, or configured by a network device, etc., which are not limited in this embodiment of the present application.
  • the PLMN may correspond to one or more frequency bands, and a frequency point search range corresponding to each frequency band in the one or more frequency bands.
  • the frequency point search range corresponding to each frequency band can be stored in the terminal with the PLMN as an index, so that the terminal can determine one or more frequency bands according to the PLMN, and the frequency point corresponding to each frequency band in the one or more frequency bands Search scope.
  • the number of frequency points in the frequency point search range corresponding to each frequency band is less than the total number of frequency points in each frequency band.
  • the total number of frequency points in the frequency band may refer to the number of frequency points within the frequency point search range defined by the frequency band.
  • the frequency point search range defined by the frequency band 40 is [2300MHz, 2400MHz], and the frequency point search range corresponding to the frequency band 40 may be [2320MHz, 2380MHz].
  • the frequency point search range corresponding to each frequency band may be continuous or discontinuous, which is not limited in this embodiment of the present application.
  • the customized frequency search range corresponding to frequency band 40 may be [2320MHz, 2340MHz] and [2345MHz, 2360MHz].
  • the frequency point search range defined by the frequency band may refer to the frequency point search range divided for the frequency band in the communication protocol. It can be understood that, corresponding to the same frequency band, the frequency point search ranges divided by different communication protocols may be the same or may be different, which is not limited in this embodiment of the present application.
  • the frequency points within the frequency point search range corresponding to each frequency band may include some or all of the frequency points selected based on one or more of the following a priori data information: commercial frequency point information of the operator corresponding to the PLMN , or the statistical information of the frequency point where the terminal resides corresponding to the PLMN.
  • the commercial frequency point information of the operator corresponding to the PLMN may include one or more frequency points used by the operator corresponding to the PLMN.
  • the terminal camping frequency point statistics information corresponding to the PLMN may include the frequency points of the cell where some or all terminals registered with the PLMN once camped on.
  • the cloud server may screen the frequency points within the frequency point search range corresponding to each frequency band based on one or more prior data information.
  • the cloud server may be a server maintained by an operator, or a server maintained by a terminal manufacturer, or a base station of an operator, which is not limited in this embodiment of the present application.
  • the terminal itself may screen the frequency points within the frequency point search range corresponding to each frequency band based on one or more prior data information.
  • the cloud server may send network data to the terminal, and accordingly, the terminal may receive network data from the cloud server, and the network data may be used to initialize or update the frequency point search range corresponding to each frequency band inside the terminal.
  • the network data may include one or more of the following data information:
  • the data information of one or more frequency bands may include one or more frequency bands newly added by the operator, one or more frequency points used by the operator in the newly added frequency bands, or newly added frequency bands by the operator in the frequency bands supported by the operator One or more of one or more frequency points.
  • the data information of one or more frequency bands corresponding to the PLMN may include one or more frequency bands newly added by the operator corresponding to the PLMN, and one or more frequency points used by the operator corresponding to the PLMN in the newly added frequency band. , or one or more of one or more frequency points newly added by the operator corresponding to the PLMN in the frequency band supported by the PLMN.
  • the data information of one or more frequency bands corresponding to the PLMN may include frequency band 3 and the frequency band used by operator 1 in frequency band 3. one or more frequency points.
  • operator 1 supports frequency band 1. Originally, operator 1 only used frequency point 1 and frequency point 2 in frequency band 1. Now operator 1 uses frequency point 3 in frequency band 1.
  • One or more frequency bands corresponding to the PLMN The data information can include frequency point 2.
  • the data information of the frequency point search range corresponding to each frequency band in the one or more frequency bands may include the frequency point search range corresponding to each frequency band.
  • the cloud server can filter the frequency points within the frequency point search range corresponding to each frequency band according to one or more prior data information, obtain the frequency point search range corresponding to each frequency band, and then send it to the terminal.
  • the terminal receives one or more a priori data information from the cloud server, and screens the frequency points within the frequency point search range corresponding to each frequency band according to the one or more a priori data information, and obtains the frequency points corresponding to each frequency band frequency point search range.
  • the terminal can update the frequency point search range corresponding to each frequency band according to the data information of the one or more frequency bands corresponding to the PLMN .
  • the terminal can initialize the frequency point search range corresponding to each frequency band according to the data information of the one or more frequency bands corresponding to the PLMN .
  • the terminal may initialize the frequency point search range corresponding to each frequency band according to the one or more a priori data information.
  • the following describes the process of determining the frequency point search range corresponding to each frequency band with reference to FIG. 5 to FIG. 7 .
  • FIG. 5 shows a schematic flowchart of a method for determining a frequency point search range corresponding to a frequency band provided by an embodiment of the present application, and the method may be applied to the communication system 100 shown in FIG. 1 .
  • the terminal in the embodiment of the present application may be the terminal shown in FIG. 1
  • the cloud server in the embodiment of the present application may be the network device shown in FIG. 1 , or a server maintained by an operator, or a server maintained by a terminal manufacturer.
  • the steps performed by the terminal may also be specifically performed by a module or component of the terminal, for example, may be performed by a chip or a chip system in the terminal.
  • the steps performed by the cloud server may also be performed by a module or component of a specific network device, for example, by a chip or a chip system in the network device.
  • the method may include:
  • the cloud server determines one or more prior data information.
  • the cloud server may determine one or more prior data information.
  • a priori data information may correspond to an operator.
  • the cloud server may acquire the prior data information of the operator 1 to obtain a priori data information.
  • the cloud server may obtain the prior data information of operator 1 and operator 2 respectively, and obtain two prior data information.
  • the priori data information may include commercial frequency information of an operator, or the prior data information includes statistical information of terminal-resident frequencies, or operator's commercial frequency information and terminal-resident frequency statistical information.
  • the commercial frequency point information of the operator may include frequency bands supported by the operator and frequency points used by the operator in the frequency band.
  • the statistics of the frequency points where the terminal resides may include the frequencies of some or all of the cells served by the same operator where the terminal once resided.
  • the cloud server may determine the commercial frequency point information of the operator according to the operator's network deployment information.
  • the network deployment information may include all or part of information such as the name of the base station, the latitude and longitude of the site, the frequency band supported by the base station, or the frequency point supported by the base station.
  • the cloud server may determine the operator's commercial frequency point information by collecting the operator's network deployment information.
  • the cloud server may determine the commercial frequency point information of the operator by interacting with the operator.
  • the cloud server can obtain the operator's commercial frequency information by interacting with the operator, or the administrator can import the operator's commercial frequency information to the cloud server.
  • the cloud server can obtain the operator's network deployment information by interacting with the operator, and determine the operator's commercial frequency point information according to the operator's network deployment information; or , the administrator can import the operator's network deployment information to the cloud server, and the cloud server can determine the operator's commercial frequency point information according to the imported network deployment information.
  • the cloud server may determine statistical information of terminal residency frequency points through big data statistics. For example, the cloud server can determine the frequency of the cell where the terminal served by the same operator once camped through big data statistics, and can determine the statistics of the frequency of the terminal for different operators.
  • the cloud server determines network data according to one or more prior data information, where the network data includes a frequency point search range corresponding to each frequency band.
  • the network data includes the frequency point search range corresponding to each frequency band.
  • the cloud server may determine the frequency point search range corresponding to each frequency band according to the commercial frequency point information of the operator, or the cloud server may determine the frequency point search range corresponding to each frequency band according to the terminal resident frequency point statistics, Alternatively, the cloud server may determine the frequency search range corresponding to each frequency band according to the operator's commercial frequency information and terminal resident frequency statistics.
  • Step S52 is described below as an example of determining the frequency point search range corresponding to the first frequency band.
  • the cloud server may filter the frequency points within the frequency point search range corresponding to the first frequency band according to the commercial frequency point information of the operator.
  • the operator's commercial frequency point information includes multiple frequency points, and the cloud server may use some of the multiple frequency points as the frequency points within the frequency point search range corresponding to the first frequency band.
  • the part of the frequency points may be the frequency points whose usage rate is greater than the first threshold value among the multiple frequency points, and the first threshold value may be preset, may be configured by the network side, or may be configured by the operator, This embodiment of the present application does not limit this.
  • the operator's commercial frequency information includes one or more frequencies
  • the cloud server may use all of the one or more frequencies as the frequencies within the frequency search range corresponding to the first frequency band.
  • the cloud server can point to determine the first frequency and the second frequency.
  • the first frequency may be the minimum frequency in the frequency point search range corresponding to the first frequency band
  • the second frequency may be the maximum frequency in the frequency point search range corresponding to the first frequency band.
  • the first frequency may be less than or equal to the multiple frequencies corresponding to the multiple frequencies.
  • the minimum frequency among the frequencies, and is greater than the minimum frequency in the frequency point search range defined by the first frequency band, and the second frequency can be greater than or equal to the maximum frequency among the multiple frequencies corresponding to the multiple frequency points, and is smaller than the first frequency band definition The maximum frequency in the frequency point search range of .
  • the cloud server uses a frequency point in the operator's commercial frequency point information as a frequency point within the frequency point search range corresponding to the first frequency band
  • the first frequency point may be less than or equal to the frequency corresponding to the frequency point, and greater than the minimum frequency in the frequency point search range defined by the first frequency band
  • the second frequency may be greater than the frequency corresponding to the frequency point and less than the maximum frequency in the frequency point search range defined by the first frequency band.
  • the frequency point search range defined by frequency band 40 is [2300MHz, 2400MHz], and the cloud server determines that frequency point 1, frequency point 2 and frequency point 3 in the commercial frequency point information of the operator are used as the corresponding frequency points of the first frequency band.
  • the frequency corresponding to frequency point 1 is 2330MHz
  • the frequency corresponding to frequency point 2 is 2335MHz
  • the frequency corresponding to frequency point 3 is 2346MHz.
  • the cloud server customizes the frequency search range for frequency band 40, it can determine that the first frequency is 2327MHz and the second frequency is 2350MHz, and the frequency search range customized by the cloud server for frequency band 40 can be [2327MHz, 2350MHz].
  • the cloud server may filter the frequency points within the frequency point search range corresponding to the first frequency band according to the terminal resident frequency point statistics information.
  • the terminal resident frequency point statistical information includes multiple frequency points, and the cloud server may use some of the multiple frequency points as the frequency points within the frequency point search range corresponding to the first frequency band.
  • the part of the frequency points may be the frequency points whose usage rate is greater than the second threshold value among the multiple frequency points, and the second threshold value may be preset, or may be configured by the network side, or may be configured by the operator, This embodiment of the present application does not limit this.
  • the terminal resident frequency point statistics include one or more frequency points
  • the cloud server may use all of the one or more frequency points as the frequency points within the frequency point search range corresponding to the first frequency band.
  • the cloud server can point to determine the first frequency and the second frequency.
  • the first frequency may be the minimum frequency in the frequency point search range corresponding to the first frequency band
  • the second frequency may be the maximum frequency in the frequency point search range corresponding to the first frequency band.
  • the frequency point search range defined by frequency band 40 is [2300MHz, 2400MHz]
  • the terminal resident frequency point statistics may include frequency point 4, frequency point 5, and frequency point 6, and the frequency corresponding to frequency point 4 is 2325MHz.
  • the frequency corresponding to frequency point 5 is 2330MHz
  • the frequency corresponding to frequency point 6 is 2333MHz.
  • the cloud server customizes the frequency point search range for frequency band 40 according to the terminal resident frequency point statistics, it can determine that the first frequency is 2325MHz and the second frequency is 2335MHz, then the frequency point search range customized by the network device for frequency band 40 can be [ 2325MHz, 2335MHz].
  • the cloud server may filter the frequency points within the frequency point search range corresponding to the first frequency band according to the commercial frequency point information of the operator and the terminal resident frequency point statistics information. For example, the cloud server may use some or all of the frequencies included in the operator's commercial frequency information and some or all of the frequencies included in the terminal resident frequency statistics as the frequencies within the frequency search range corresponding to the first frequency band. point.
  • the frequency point search range defined by frequency band 40 is [2300MHz, 2400MHz]
  • the commercial frequency point information of the operator may include frequency point 1, frequency point 2 and frequency point 3, and the terminal resident frequency point statistics information can be Including frequency point 4, frequency point 5 and frequency point 6.
  • the frequency corresponding to frequency point 1 is 2330MHz
  • the frequency corresponding to frequency point 2 is 2335MHz
  • the frequency corresponding to frequency point 3 is 2346MHz
  • the frequency corresponding to frequency point 4 is 2325MHz
  • the frequency corresponding to frequency point 5 is 2330MHz
  • the frequency corresponding to frequency point 6 is 2330MHz.
  • the frequency is 2333MHz.
  • the network equipment customizes the frequency search range for frequency band 40 based on the operator's commercial frequency point information and terminal resident frequency point statistics, it can determine that the first frequency is 2325MHz and the second frequency is 2350MHz, then the network equipment is customized for frequency band 40.
  • the frequency point search range can be [2325MHz, 2350MHz].
  • S53 The cloud server sends network data to the terminal.
  • the terminal receives network data.
  • the terminal may store the frequency point search range corresponding to each frequency band with the PLMN as an index.
  • the storage form may be a table, a database, a text or a picture, etc., which is not limited in this embodiment of the present application.
  • One PLMN may correspond to one or more frequency bands, and one frequency band may correspond to one or more frequency point search ranges, as shown in Table 1.
  • PLMN 1 can be used to determine frequency band 1, and the frequency search range corresponding to frequency band 1 is [A1, B1];
  • PLMN 2 can be used to determine frequency band 2 and the frequency search range corresponding to frequency band 2 The range is [A2, B2] and [A3, B3];
  • PLMN 3 can be used to determine frequency band 1, the frequency point search range corresponding to frequency band 1 is [A4, B4] and [A5, B5], frequency band 3, and frequency band
  • the frequency point search range corresponding to 3 is [A6, B6].
  • the PLMN list may be stored in the AP of the terminal, such as in a cloud communication module in the AP, and the cloud communication module may be used to enable the terminal to support cloud communication.
  • the modem of the terminal can interact with the cloud communication module to obtain a list of PLMNs stored in the cloud communication module, as shown in FIG. 6 .
  • the modem may determine, according to the selected PLMN and the PLMN list, one or more frequency bands corresponding to the PLMN, and a frequency point search range corresponding to each frequency band in the one or more frequency bands.
  • the PLMN list may be stored in memory.
  • the modem of the terminal can directly obtain the PLMN list from the memory, and according to the selected PLMN and the PLMN list, determine one or more frequency bands corresponding to the PLMN, and the corresponding frequency band of each of the one or more frequency bands. frequency point search range.
  • the terminal may send a network data response message (such as a confirmation message or a negative message) to the cloud server to indicate whether the terminal successfully receives the network data.
  • the cloud server receives the response message of the network data.
  • the terminal may send a confirmation message to the cloud server to indicate that the terminal has successfully received the network data.
  • the terminal acquires and stores the frequency point search range corresponding to each frequency band.
  • FIG. 7 shows a schematic flowchart of a method for determining a frequency point search range corresponding to a frequency band provided by an embodiment of the present application, and the method can be applied to the communication system 100 shown in FIG. 1 .
  • the terminal in the embodiment of the present application may be the terminal shown in FIG. 1
  • the cloud server in the embodiment of the present application may be the network device shown in FIG. 1 , or a server maintained by an operator, or a server maintained by a terminal manufacturer.
  • the steps performed by the terminal may also be specifically performed by a module or component of the terminal, for example, may be performed by a chip or a chip system in the terminal.
  • the steps performed by the cloud server may also be performed by a module or component of a specific network device, for example, by a chip or a chip system in the network device.
  • the method may include:
  • the cloud server determines one or more prior data information.
  • the priori data information may include commercial frequency information of an operator, or the prior data information includes statistical information of terminal-resident frequencies, or operator's commercial frequency information and terminal-resident frequency statistical information.
  • the commercial frequency point information of the operator may include frequency bands supported by the operator and frequency points used by the operator in the frequency band.
  • the statistics of the frequency points where the terminal resides may include the frequencies of some or all of the cells served by the same operator where the terminal once resided.
  • the cloud server sends network data to the terminal.
  • the terminal receives network data.
  • the network data includes one or more prior data information.
  • the network data sent by the cloud server to the terminal includes one or more a priori data information.
  • the cloud server collects one or more a priori data information, it can send the collected one or more a priori data information to the terminal.
  • the cloud server determines the frequency point search range corresponding to each frequency band according to the network data.
  • the cloud server may determine the frequency point search range corresponding to each frequency band according to the one or more a priori data information. For example, the cloud server may determine the frequency point search range corresponding to each frequency band according to the commercial frequency point information of the operator, or the cloud server may determine the frequency point search range corresponding to each frequency band according to the terminal resident frequency point statistics, Alternatively, the cloud server may determine the frequency search range corresponding to each frequency band according to the operator's commercial frequency information and terminal resident frequency statistics. For the determination method and storage method of the frequency point search range corresponding to each frequency band, reference may be made to the content shown in steps S52 and S53 in FIG. 5 , which will not be repeated here.
  • the terminal may send a network data response message (such as a confirmation message or a negative message) to the cloud server to indicate whether the terminal successfully receives the network data.
  • the cloud server receives the response message of the network data.
  • the terminal may send a confirmation message to the cloud server to indicate that the terminal has successfully received the network data.
  • the terminal acquires and stores the frequency point search range corresponding to each frequency band.
  • the network data includes data information of one or more frequency bands.
  • the cloud server can determine the data information of one or more frequency bands, such as interactive acquisition by the operator, or import by the management personnel. After the cloud server determines the data information of one or more frequency bands, it can send the network data to the terminal, and correspondingly, the terminal receives the network data, where the network data includes the data information of one or more frequency bands. After receiving the network data, the terminal can update the frequency point search range corresponding to the corresponding frequency band according to the data information of one or more frequency bands.
  • the frequency point search range corresponding to the current frequency band 40 is [2325MHz, 2350MHz].
  • the data information of one or more frequency bands received by the terminal includes frequency band 40, frequency point 1 and frequency point 2.
  • the frequency corresponding to frequency point 1 is 2324 MHz
  • the frequency corresponding to frequency point 2 is 2351 MHz.
  • the frequency point search range corresponding to the frequency band 40 may be [2323MHz, 2352MHz].
  • step S402 The terminal determines whether prior information is stored. If the terminal determines that the prior information is stored, the terminal executes the content shown in step S403. If the terminal determines that no prior information is stored, the terminal enters the frequency band scanning phase, that is, the terminal executes the content shown in step S405.
  • the prior information may include at least one frequency point, and the at least one frequency point may be a frequency point of a cell where the terminal resides.
  • the a priori information may be frequency point information (such as a frequency point, a cell identifier, etc.) of a cell where the terminal resides before the terminal is powered off.
  • the a priori information may also include a cell identifier.
  • the terminal may determine whether prior information is stored. For example, the terminal may determine whether prior information is stored by reading a memory, a SIM card, or a universal subscriber identification (universal SIM, USIM) card. For example, when the terminal inserts the SIM card or the USIM card for the first time, the terminal may determine that no prior information is stored.
  • a memory For example, a SIM card, or a universal subscriber identification (universal SIM, USIM) card.
  • universal SIM, USIM universal subscriber identification
  • S403 The terminal searches for a suitable cell according to the prior information.
  • the terminal may search for a suitable cell on at least one frequency point included in the prior information.
  • the terminal can directly search for a suitable cell on the frequency point;
  • the terminal can search for suitable cells on the multiple frequency points in turn community.
  • the multiple frequency points include frequency point 1, frequency point 2, and frequency point 3.
  • the terminal may search for a suitable cell on frequency point 1 first, but it is not found; the terminal searches for a suitable cell on frequency point 2, but it is not found; the terminal Search for a suitable cell on frequency 3.
  • a suitable cell may refer to a cell that the terminal searches for and tries to camp on.
  • the terminal searches for multiple cells in a certain frequency band
  • a suitable cell may be a cell that satisfies a predetermined criterion among the multiple cells.
  • the predetermined criterion may be any one of the S criterion, the R criterion, or the H criterion, which is not limited in this embodiment of the present application.
  • step S404 The terminal determines whether a suitable cell is found according to the prior information. If the terminal determines that a suitable cell is found according to the prior information, the terminal executes the content shown in step S407. If the terminal determines that no suitable cell is found according to the prior information, the terminal enters the frequency band scanning phase, that is, the terminal executes the content shown in step S405.
  • the terminal may try to camp on the suitable cell, that is, the content shown in step S407 is executed. If the terminal does not search for a suitable cell on at least one frequency point included in the prior information, the terminal may perform frequency band scanning, that is, the terminal performs the content shown in step S405.
  • the terminal searches for a suitable cell on at least one frequency band included in the prior information, but fails to camp on a suitable cell, the terminal enters the frequency band scanning phase, that is, the terminal executes the content shown in step S407. For example, after searching for a suitable cell according to the prior information, the terminal is denied access by the suitable cell in the process of trying to camp on the suitable cell.
  • the terminal After the terminal fails to search for a suitable cell in the prior information, it scans the entire frequency band of the PLMN. Because the PLMN in this embodiment of the present application can indicate a frequency point search range corresponding to each frequency band in one or more frequency bands, and the number of frequency points in the frequency point search range corresponding to each frequency band is smaller than that in each frequency band Therefore, the scanning time in each frequency band can be reduced, so that the overall cell search time can be shortened. Specifically, the terminal may acquire the frequency point search range corresponding to each frequency band in one or more frequency bands corresponding to the PLMN, that is, the terminal executes the content shown in step S405.
  • S405 The terminal acquires one or more frequency bands corresponding to the PLMN, and a frequency point search range corresponding to each frequency band in the one or more frequency bands.
  • the terminal can determine one or more corresponding PLMNs according to the PLMN determined in step S401. frequency band, and the customized frequency point search range corresponding to each frequency band in the one or more frequency bands. For example, the terminal can query the PLMN list (as shown in Table 1) according to the PLMN, and obtain one or more frequency bands corresponding to the PLMN and the frequency point search range corresponding to each frequency band in the one or more frequency bands.
  • the PLMN determined in step S401 may be referred to as the first PLMN hereinafter, the first PLMN corresponds to the first operator, the first PLMN corresponds to the first frequency band, and the frequency point search range corresponding to the first frequency band It is called the first frequency point search range.
  • the terminal may determine the second PLMN according to the first frequency band, and the second PLMN corresponds to the second operator.
  • the terminal may acquire one or more frequency bands corresponding to the second PLMN, and a frequency point search range corresponding to each frequency band in the one or more frequency bands.
  • One or more frequency bands corresponding to the second PLMN include a first frequency band, and a frequency point search range corresponding to the first frequency band corresponding to the second PLMN is referred to as a second frequency point search range.
  • the terminal can query the PLMN list (as shown in Table 1) according to the first frequency band, and obtain the second PLMN and the search range of the second frequency point.
  • the terminal can search for a cell in a third frequency range, the third frequency range includes the first frequency range and the second frequency range, and the number of frequencies included in the third frequency range is less than the number of the third frequency range.
  • the first operator and the second operator may be the same operator, or may be different operators, which is not limited in this embodiment of the present application.
  • the first operator and the second operator both serve the terminal.
  • the first frequency search range includes part of the frequency used by the first operator in the first frequency band
  • the second frequency search range includes part of the frequency used by the second operator in the first frequency band
  • the first frequency The operator and the second operator may be the same operator.
  • the first frequency point search range or the second frequency point search range can be understood as the updated frequency point search range.
  • the protocol defines the frequency search range of frequency band 41 to be [2500MHz, 2690MHz] (referred to as frequency search range 1), and the frequency range of frequency band 41 is [2555MHz, 2575MHz] ] is assigned to operator 1, and [2575MHz, 2635MHz] in frequency band 41 is assigned to operator 2.
  • the cloud server can cut [2555MHz, 2575MHz] into [2560MHz, 2570MHz] according to the commercial frequency information of operator 1 (referred to as frequency search range 2), and use frequency band 41 and frequency search range 2 with PLMN 1 as an index Configured to the terminal.
  • [2575MHz, 2635MHz] can be cut into [2585MHz, 2625MHz] (referred to as frequency search range 3), and frequency band 41 and frequency search range 3 are configured with PLMN 2 as an index to terminal.
  • the terminal determines to scan frequency band 41, the terminal can determine the customized frequency search range of frequency band 41 according to PLMN 1 and PLMN 2 as [2560MHz, 2570MHz] and [2585MHz, 2625MHz], and then at [2560MHz, 2570MHz] and [2585MHz, 2625MHz], as shown in Figure 8.
  • the protocol defines the frequency search range of frequency band 41 to be [2500MHz, 2690MHz] (referred to as frequency search range 1), and the frequency range of frequency band 41 is [2555MHz, 2575MHz] ] configured to operator 1.
  • the terminal locally stores the PLMN 3 and the frequency point search range [2557MHz, 2568MHz] (which can be recorded as the frequency point search range 4).
  • the cloud server can cut [2555MHz, 2575MHz] into [2564MHz, 2573MHz] according to the commercial frequency information of operator 1 (referred to as frequency search range 5), and use frequency band 41 and frequency search range 5 with PLMN 4 as an index Configured to the terminal.
  • the terminal can determine that PLMN 3 and PLMN 4 determine the customized frequency search range of the frequency band 41 to be [2557MHz, 2573MHz], and then search for the appropriate frequency within [2557MHz, 2573MHz], as shown in Figure 9.
  • the terminal may determine a third PLMN according to the first frequency band, and the third PLMN is not configured with a frequency point search range. For example, after the terminal determines to search for a suitable cell in the first frequency band, the terminal can determine other PLMNs corresponding to the first frequency band according to the first frequency band and the PLMN list (as shown in Table 1), and obtain the third PLMN and whether the third PLMN is Configure the frequency search range. For example, the terminal has not upgraded the system, but the network has been upgraded, such as adding a PLMN, adding a frequency band, or adding a frequency point, etc., and the frequency point search range has not been configured for the third PLMN. In this case, the terminal searches for cells on all frequency points in the first frequency band (that is, suitable cells shown in the whole frequency band) to avoid the risk of missing the search for suitable cells, as shown in FIG. 10 .
  • S406 The terminal searches for a suitable cell according to the frequency point search range corresponding to each frequency band.
  • the number of frequency bands scanned by the terminal may be one or more.
  • the terminal can scan the frequency points with relatively strong signals within the frequency point search range corresponding to the frequency band to obtain multiple frequency points, and then the terminal sequentially searches for suitable cells on the multiple frequency points.
  • the terminal may sequentially scan for suitable cells within the frequency point search range corresponding to each frequency band in the multiple frequency bands.
  • the frequency bands scanned by the terminal are frequency band 1, frequency band 2 and frequency band 3.
  • the terminal can scan frequency points with relatively strong signals within the frequency point search range corresponding to frequency band 1 to obtain multiple frequency points. Searching for a suitable cell on the multiple frequency points, no suitable cell is found or it fails to camp on the searched suitable cell; after that, the terminal can scan the frequency point with relatively strong signal within the frequency point search range corresponding to the frequency band 2 , obtain multiple frequency points, and then the terminal searches for a suitable cell on the multiple frequency points in turn, searches for a suitable cell and successfully camps on it, and the cell search ends, that is, the terminal does not need to search for the frequency point corresponding to frequency band 3. scope.
  • S407 The terminal camps on a suitable cell.
  • the terminal may try to camp on the suitable cell.
  • the terminal can synchronize with the appropriate cell in time and frequency by receiving the SSB signal from the appropriate cell, receive broadcast information of the appropriate cell, and perform network registration. After the registration is successful, the terminal camps on the appropriate cell.
  • FIG. 11 shows another schematic flowchart of a cell search method applied to a terminal provided by an embodiment of the present application, and the method may be executed by the terminal shown in FIG. 2 .
  • the method may include:
  • S1101 The terminal enters the frequency band scanning phase.
  • the terminal when the SIM card (or USIM card) is inserted into the terminal for the first time, there is no prior information in the terminal, and after the terminal is powered on, the terminal enters the frequency band scanning phase. For example, after the terminal is powered on, no suitable cell is found according to the prior information, and the terminal enters the frequency band scanning phase. For another example, after the terminal is powered on, it searches for a suitable cell according to the prior information, but fails to camp, and the terminal enters the frequency band scanning phase. For example, in scenarios such as tunnels, garages, or insufficient network coverage in the initial stage of SA construction, the terminal will enter the frequency band scanning phase with a high probability.
  • S1102 The modem sends the first message to the application processor, and accordingly, the application processor receives the first message.
  • the first message may be used to apply for obtaining the PLMN list (as shown in Table 1), or to read the PLMN list.
  • the modem in the terminal can determine the PLMN and send the first message to the application processor to obtain the permission to read the PLMN list.
  • the PLMN is stored in the cloud communication module of the application processor, and the modem can determine the PLMN and directly send the first message to the cloud communication module to obtain the permission to read the PLMN list stored in the cloud communication module.
  • the determination of the PLMN may refer to the content shown in step S404 in FIG. 4 , which will not be repeated here. It can be understood that the interaction between the modem and the application processor (or the cloud communication module) may be implemented based on a protocol stack, which is not limited in this embodiment of the present application.
  • S1103 The application processor sends the second message to the modem, and accordingly, the modem receives the second message.
  • the second message may be a reply message of the first message, and may be used to provide the modem with the PLMN list.
  • the application processor or cloud communication module
  • the application processor or cloud communication module
  • the application processor does not allow the modem to access the PLMN list, and sends a negative message to the application processor (or the cloud communication module).
  • S1104 The modem determines the frequency point search range corresponding to the frequency band according to the PLMN list, and searches for a suitable cell within the frequency point search range corresponding to the frequency band.
  • the modem can determine the frequency point search range corresponding to the frequency band according to the PLMN list, and search for suitable cells within the frequency point search range corresponding to the frequency band.
  • the specific implementation process can be seen in Figure 4. The contents shown in steps S405 to S407 will not be repeated here.
  • the modem scans all frequency points of the frequency band.
  • the terminal searches for suitable cells within the frequency point search range corresponding to each frequency band in one or more frequency bands corresponding to the PLMN, wherein the frequency points in the frequency point search range corresponding to each frequency band are number, less than the total number of frequency points in each frequency band.
  • the terminal scans a part of the frequency points of the frequency band.
  • the time for the terminal to scan a single frequency band can be reduced.
  • the above technical solution can shorten the time for the terminal to perform frequency band scanning as a whole, thereby reducing the time for the terminal to search for cells and improving user experience.
  • FIG. 12 shows a schematic structural diagram of a communication apparatus 1200 .
  • the communication apparatus 1200 may be the terminal in the embodiments shown in FIG. 4 to FIG. 11 above, and can implement the functions of the terminal in the method provided by the embodiments of the present application; the communication apparatus 1200 may also be capable of supporting the terminal to implement the embodiments of the present application.
  • the method provides means for the function of the terminal.
  • the communication apparatus 1200 may be a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication apparatus 1200 may be implemented by a chip system. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication apparatus 1200 may include a processing module 1201 and a cell search module 1202 . in:
  • the processing module 1201 can be used to obtain one or more frequency bands corresponding to the public land mobile network PLMN and the frequency point search range corresponding to each frequency band in the one or more frequency bands in the frequency band scanning phase of the cell search, wherein, The number of frequency points in the frequency point search range corresponding to each frequency band is less than the total number of frequency points in each frequency band.
  • the cell search module 1202 can be used to search whether there is a suitable cell according to the frequency point search range corresponding to each frequency band, and try to camp on the searched suitable cell; wherein, the frequency point search range corresponding to each frequency band
  • the internal frequency points include some frequency points selected based on one or more of the following a priori data information: the commercial frequency point information of the operator corresponding to the PLMN, and the statistics information of the terminal resident frequency point corresponding to the PLMN.
  • the frequency point search range corresponding to each frequency band is stored in the terminal with the PLMN as an index.
  • the cell search module 1202 may be further configured to: receive network data from a cloud server, where the network data is used to initialize or update the frequency point search range corresponding to each frequency band inside the terminal.
  • the network data of the cloud server includes one or more of the following data information: data information of one or more frequency bands corresponding to the PLMN, data information corresponding to each frequency band in the one or more frequency bands The data information of the frequency point search range, and one or more prior data information.
  • one or more frequency bands corresponding to the PLMN include frequency bands of the new radio NR system.
  • the cell search module 1202 is used for the communication device 1200 to communicate with other modules, and it can be a circuit, a device, an interface, a bus, a software module, a transceiver, a transceiver module or any other device that can implement communication.
  • the processing module can also be called a processing unit, a processor, a processing device, or a processing board, etc.
  • the transceiver module can also be called a communication module, a transceiver, a transceiver, a transceiver unit, or a transceiver circuit.
  • the application examples are not limited to this.
  • the division of modules in the embodiments of the present application is schematic, and is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of the present application may be integrated into one processing unit. In the device, it can also exist physically alone, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules.
  • the communication device 1300 includes: an interface circuit 1301 for implementing the functions implemented by the cell search module 1202 ; and a logic circuit 1302 for implementing the functions implemented by the processing module 1201 .
  • the communication device may be a chip or an integrated circuit during specific implementation.
  • the communication device provided by this embodiment of the present application may be a terminal, or may be a device in a terminal (for example, a chip or a chip system or a chip set or a part of the chip for performing related method functions).
  • the device may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the apparatus 1400 includes at least one processor 1420, configured to implement the function of the terminal in the method provided by the embodiment of the present application.
  • the apparatus 1400 may also include a communication interface 1410 .
  • the communication interface 1410 may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces for communicating with other devices through a transmission medium.
  • the communication interface 1410 is used for the apparatus in the apparatus 1400 to communicate with other devices.
  • the other device may be a network device or a cloud server.
  • the processor 1420 uses the communication interface 1410 to send and receive data, and is used to implement the method implemented by the terminal in the above method embodiment.
  • the apparatus 1400 may also include at least one memory 1430 for storing program instructions and/or data.
  • Memory 1430 and processor 1420 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 1420 may cooperate with the memory 1430.
  • Processor 1420 may execute program instructions stored in memory 1430 . At least one of the at least one memory may be included in the processor.
  • the specific connection medium between the communication interface 1410 , the processor 1420 , and the memory 1430 is not limited in the embodiments of the present application.
  • the memory 1430, the processor 1420, and the communication interface 1410 are connected through a bus 1440 in FIG. 14.
  • the bus is represented by a thick line in FIG. 14, and the connection between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is shown in FIG. 14, but it does not mean that there is only one bus or one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which can implement or
  • a general purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or may also be a volatile memory (volatile memory), for example Random-access memory (RAM).
  • Memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in this embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing program instructions and/or data.
  • Embodiments of the present application further provide a computer-readable storage medium, including instructions, which, when executed on a computer, cause the computer to execute the method executed by the terminal in the foregoing embodiments.
  • Embodiments of the present application also provide a computer program product, including instructions, which, when run on a computer, cause the computer to execute the method executed by the terminal in the foregoing embodiments.
  • An embodiment of the present application provides a chip system, where the chip system includes a processor, and may also include a memory, for implementing the functions of the terminal in the foregoing method.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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Abstract

一种应用于终端的小区搜索方法及通信装置，用以减少终端搜索小区的时长，提高用户体验。在该方法中，在小区搜索的频段扫描阶段中，终端获取PLMN对应的一个或多个频段，以及该一个或多个频段中每个频段所对应的频点搜索范围，其中，每个频段所对应的频点搜索范围内的频点个数，小于每个频段内的全部频点个数；根据每个频段所对应的频点搜索范围，搜索是否有合适小区，并尝试在搜索到的合适小区上驻留。

Description

一种应用于终端的小区搜索方法及通信装置 技术领域
本申请涉及无线通信技术领域，尤其涉及一种应用于终端的小区搜索方法及通信装置。
背景技术
在移动通信系统中，频段(band)可以用于定义无线电波的频点搜索范围。在同一制式的通信系统中，如长期演进(long term evolution，LTE)通信系统或新无线电(new radio，NR)通信系统等。一个频段定义的频点搜索范围是固定的，一个频段可以配置给至少一个运营商。其中，每个运营商可使用的频点搜索范围也可能不一样。例如，在LTE通信系统中，频段40定义的频点搜索范围为[2300MHz，2400MHz]，其中，频点搜索范围[2300MHz，2320MHz]配置给中国联通，频点搜索范围[2320MHz，2370MHz]配置给中国移动，频点搜索范围[2370MHz，2390MHz]配置给中国电信，频点搜索范围[2390MHz，2400MHz]为保留频率。
终端开机后，终端需要尽快搜索到一个合适小区并完成小区驻留。从发起小区搜索到驻留到合适小区的这一过程可称为终端的小区搜索流程。在此过程中，如果终端未存储先验信息或者根据先验信息未搜索到合适小区，则终端需要依次对其支持的至少一个频段进行扫描，直至搜索到合适小区。对于单个频段，终端需要对频段定义的频点搜索范围进行全部搜索，搜索时间较长，影响用户体验。
发明内容
本申请实施例提供一种应用于终端的小区搜索方法及通信装置，用于减少终端搜索小区的时长。
第一方面，本申请实施例提供一种应用于终端的小区搜索方法，该方法可以由终端执行，或者也可以由终端的部件(如处理器、芯片或芯片系统)执行。该方法中，在小区搜索的频段扫描阶段中，终端获取公共陆地移动网(public land mobile network，PLMN)对应的一个或多个频段，以及该一个或多个频段中每个频段所对应的频点搜索范围，其中，每个频段所对应的频点搜索范围内的频点个数，小于每个频段内的全部频点个数；根据每个频段所对应的频点搜索范围，搜索是否有合适小区，并尝试在搜索到的合适小区上驻留。
其中，PLMN对应一个或多个频段，例如，当PLMN对应一个频段时，该一个频段可以为PLMN对应的运营商所支持的部分频段。例如，当PLMN对应多个频段时，该多个频段可以为PLMN对应的运营商所支持的部分或全部频段。其中，PLMN对应的运营商可以通过PLMN中的移动网络号码(mobile network codes，MNC)确定。
现有技术中，在小区搜索的频段扫描阶段中，终端需要对其支持的频段内的全部频点进行扫描，即全频段扫描。在上述技术方案中，终端在PLMN对应的一个或多个频段中每个频段所对应的频点搜索范围内搜索合适小区，其中，每个频段所对应的频点搜索范围的频点个数、小于每个频段的全部频点个数。意味着，针对单个频段，终端扫描的是该频段的部分频点，相较于现有技术中需要扫描该频段的全部频点而言，可以减少终端对单个频段扫描的时长。在需要对多个频段扫描时，上述技术方案可以整体缩短终端进行频段扫描的时长，从而可以减少终端搜索小区的时长，可以提高用户体验。
在一种可能的设计中，每个频段所对应的频点搜索范围内的频点包括基于以下一个或多个先验数据信息所筛选的部分或全部频点：PLMN对应的运营商的商用频点信息，以及PLMN对应的终端驻留频点统计信息。
可选的，每个频段所对应的频点搜索范围内的频点可以是云服务器基于一个或多个先验数据信息所筛选的部分或全部频点，也可以是终端自身基于一个或多个先验数据信息所筛选的部分或全部频点。例如，云服务器可以是为运营商的基站，也可以为运营商维护的服务器，还可以为终端厂商维护的服务器，本申请对此并不限定。
通过该设计，为了给终端提高良好的服务，运营商所使用的频点(或所支持的频段)会覆盖终端支持的频点(或频段)，频段所对应的频点搜索范围的频点由运营商的商用频点信息(如运营商所支持的全部频点)来确定，可以在缩短小区搜索时长的同时，确保终端能够在频段所对应的频点搜索范围内搜索到合适小区，避免因终端扫描频段的部分频点而导致错失合适小区的问题。终端驻留频点统计信息可以通过大数据获取，能够反映终端驻留过的频点信息，因此从终端驻留频点统计信息中筛选频段所对应的频点搜索范围，也可以在缩短小区搜索时长的同时，确保终端能够在频段所对应的频点搜索范围内搜索到合适小区，避免因终端扫描频段的部分频点而导致错失合适小区的问题。
在一种可能的设计中，每个频段所对应的频点搜索范围以PLMN为索引存储在终端内部。
通过该设计，终端进入频段扫描阶段后，可以根据选择的PLMN确定该PLMN对应的一个或多个频段中每个频段所对应的频点搜索范围，并根据每个频段所对应的频点搜索范围搜索小区。其中，存储形式可以包括表格、文字、数据库或图片等。
在一种可能的设计中，该方法还可以包括：终端接收来自云服务器的网络数据，网络数据用于初始化或更新终端内部的每个频段所对应的频点搜索范围。
通过该设计，终端可以根据接收到的网络数据更新或初始化终端内部的每个频段所对应的频点搜索范围，可以兼容终端未配置频段所对应的频点搜索范围的情况，以及避免因网络侧升级(如新增PLMN、频段或频点等)而终端未升级导致频段所对应的频点搜索范围不可用的情况。
在一种可能的设计中，云服务器的网络数据包括以下数据信息中的一种或多种：PLMN对应的一个或多个频段的数据信息，一个或多个频段中每个频段所对应的频点搜索范围的数据信息，一个或多个先验数据信息。
通过该设计，当网络数据包括PLMN对应的一个或多个频段的数据信息时，终端可根据网络数据升级自身内部的每个频段所对应的频点搜索范围。或者，当网络数据包括一个或多个频段中每个频段所对应的频点搜索范围的数据信息时，终端可以初始化每个频段所对应的频点搜索范围。或者，当网络数据包括一个或多个先验数据信息时，终端可根据该一个或多个先验数据信息确定每个频段所对应的频点搜索范围，并将以PLMN为索引存储每个频段所对应的频点搜索范围。
在一种可能的设计中，PLMN对应的一个或多个频段包括新无线电NR系统的频段。例如，PLMN对应的一个或多个频段可以包括NR系统的频段，或LTE系统的频段，或其它制式的频段，本申请实施例对此并不限定。
第二方面，本申请实施例提供一种应用于终端的小区搜索方法，该方法可以由云服务器执行，或者也可以由云服务器的部件(如处理器、芯片或芯片系统)执行。云服务器确 定网络数据，网络数据用于初始化或更新终端内部的每个频段所对应的频点搜索范围，其中，每个频段所对应的频点搜索范围的频点个数，小于每个频段的全频点个数；云服务器向终端发送该网络数据。
在一种可能的设计中，网络数据包括以下数据信息中的一种或多种：PLMN对应的一个或多个频段的数据信息，一个或多个频段中每个频段所对应的频点搜索范围的数据信息，一个或多个先验数据信息。
在一种可能的设计中，在网络数据包括一个或多个频段中每个频段所对应的频点搜索范围的数据信息时，该方法还可以包括，云服务器确定一个或多个先验数据信息，并根据一个或多个先验数据信息确定一个或多个频段中每个频段所对应的频点搜索范围的数据信息。
在一种可能的设计中，每个频段所对应的频点搜索范围内的频点包括基于以下一个或多个先验数据信息所筛选的部分或全部频点：运营商的商用频点信息，以及终端驻留频点统计信息。
第三方面，本申请实施例提供一种通信装置，该通信装置可以为终端，也可以为终端中的装置。该通信装置可以包括处理模块和小区搜索模块，这些模块可以执行上述第一方面中任一种设计示例中终端所执行的相应功能。其中：
处理模块，可用于在小区搜索的频段扫描阶段中获取PLMN对应的一个或多个频段，以及该一个或多个频段中每个频段所对应的频点搜索范围，其中，每个频段所对应的频点搜索范围内的频点个数，小于每个频段内的全部频点个数。
小区搜索模块，可用于根据每个频段所对应的频点搜索范围，搜索是否有合适小区，并尝试在搜索到的合适小区上驻留。
其中，PLMN对应一个或多个频段，例如，当PLMN对应一个频段时，该一个频段可以为PLMN对应的运营商所支持的部分频段。例如，当PLMN对应多个频段时，该多个频段可以为PLMN对应的运营商所支持的部分或全部频段。其中，PLMN对应的运营商可以通过PLMN中的MNC确定。
在一种可能的设计中，每个频段所对应的频点搜索范围内的频点包括基于以下一个或多个先验数据信息所筛选的部分或全部频点：PLMN对应的运营商的商用频点信息，以及PLMN对应的终端驻留频点统计信息。
在一种可能的设计中，每个频段所对应的频点搜索范围以PLMN为索引存储在终端内部。
在一种可能的设计中，小区搜索模块还可用于：接收来自云服务器的网络数据，网络数据用于初始化或更新终端内部的每个频段所对应的频点搜索范围。
在一种可能的设计中，云服务器的网络数据包括以下数据信息中的一种或多种：PLMN对应的一个或多个频段的数据信息，一个或多个频段中每个频段所对应的频点搜索范围的数据信息，一个或多个先验数据信息。
在一种可能的设计中，PLMN对应的一个或多个频段包括新无线电NR系统的频段。例如，PLMN对应的一个或多个频段可以包括NR系统的频段，或LTE系统的频段，或其它制式的频段。
第四方面，本申请实施例提供一种通信装置，该通信装置可以为云服务器，也可以为云服务器中的装置。该通信装置可以包括处理模块和收发模块，这些模块可以执行上述第 二方面中任一种设计示例中云服务器所执行的相应功能。其中：
处理模块，可以用于确定网络数据，网络数据用于初始化或更新终端内部的每个频段所对应的频点搜索范围，其中，每个频段所对应的频点搜索范围的频点个数，小于每个频段的全频点个数。
收发模块，可以用于向终端发送该网络数据。
在一种可能的设计中，网络数据包括以下数据信息中的一种或多种：PLMN对应的一个或多个频段的数据信息，一个或多个频段中每个频段所对应的频点搜索范围的数据信息，一个或多个先验数据信息。
在一种可能的设计中，处理模块进一步用于，云服务器确定一个或多个先验数据信息，并根据一个或多个先验数据信息确定一个或多个频段中每个频段所对应的频点搜索范围的数据信息。
在一种可能的设计中，每个频段所对应的频点搜索范围内的频点包括基于以下一个或多个先验数据信息所筛选的部分或全部频点：运营商的商用频点信息，以及终端驻留频点统计信息。
第五方面，本申请实施例提供一种通信装置，包括逻辑电路和接口电路。其中：
逻辑电路，可以用于获取公共陆地移动网PLMN对应的一个或多个频段，以及所述一个或多个频段中每个频段所对应的频点搜索范围，使得通信装置执行第一方面或第一方面中任一项所述的方法，其中，所述每个频段所对应的频点搜索范围内的频点个数，小于所述每个频段内的全部频点个数。
接口电路，可以用于根据所述每个频段所对应的频点搜索范围，搜索是否有合适小区，并尝试在搜索到的合适小区上驻留；其中，所述每个频段所对应的频点搜索范围内的频点包括基于以下一个或多个先验数据信息所筛选的部分频点：
所述PLMN对应的运营商的商用频点信息，以及所述PLMN对应的终端驻留频点统计信息。
第六方面，本申请实施例提供一种通信装置，包括逻辑电路和接口电路。其中：
逻辑电路，可以用于确定网络数据，网络数据用于初始化或更新终端内部的每个频段所对应的频点搜索范围，使得通信装置执行第二方面或第二方面中任一项所述的方法，其中，所述每个频段所对应的频点搜索范围内的频点个数，小于所述每个频段内的全部频点个数。
接口电路，可以用于向终端发送该网络数据。
第七方面，本申请实施例提供一种通信装置，包括：存储器，用于存储程序；处理器，用于执行所述存储器存储的所述程序，当所述程序被执行时，使得所述通信装置执行如第一方面或第一方面中任一项所述的方法。可选的，所述处理器包括所述存储器。可选的，所述通信装置为芯片或集成电路。
第八方面，本申请实施例提供一种通信装置，包括：存储器，用于存储程序；处理器，用于执行所述存储器存储的所述程序，当所述程序被执行时，使得所述通信装置执行如第二方面或第二方面中任一项所述的方法。可选的，所述处理器包括所述存储器。可选的，所述通信装置为芯片或集成电路。
第九方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机可读指令，当所述计算机可读指令在通信装置上运行时，使得所述通信装置 执行第一方面或第一方面中任一项所述的方法。
第十方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机可读指令，当所述计算机可读指令在通信装置上运行时，使得所述通信装置执行第二方面或第二方面中任一项所述的方法。
第十一方面，本申请实施例提供一种计算机程序产品，当所述计算机程序产品在通信装置上运行时，使得所述通信装置第一方面或第一方面中任一所述的方法。
第十二方面，本申请实施例提供一种计算机程序产品，当所述计算机程序产品在通信装置上运行时，使得所述通信装置第二方面或第二方面中任一所述的方法。
上述第二方面至第十二方面及其实现方式的有益效果可以分别参考对第一方面及其实现方式的有益效果的描述。
附图说明
图1为本申请实施例适用的通信系统的一种架构示意图；
图2为本申请实施例中终端的一种架构示意图；
图3为本申请实施例中终端搜索小区的一种流程示意图；
图4为本申请实施例提供的一种应用于终端的小区搜索方法的流程示意图；
图5为本申请实施例提供的一种确定频段所对应的频点搜索范围的方法流程示意图；
图6为本申请实施例中云通信模块与调制解调器交互的一种示意图；
图7为本申请实施例提供的另一种确定频段所对应的频点搜索范围的方法流程示意图；
图8为本申请实施例中第三频点搜索范围的一种示意图；
图9为本申请实施例中第三频点搜索范围的再一种示意图；
图10为本申请实施例提供的应用于终端的小区搜索方法的一种示意图；
图11为本申请实施例中提供的另一种应用于终端的小区搜索方法的流程示意图；
图12为本申请实施例提供的通信装置的一种结构示意图；
图13为本申请实施例提供的通信装置的另一种结构示意图；
图14为本申请实施例提供的通信装置的再一种结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。方法实施例中的具体操作方法也可以应用于装置实施例或系统实施例中。其中，在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
如图1所示，为本申请所适用的一种可能的网络架构示意图，包括网络设备和至少一个终端。该网络设备和终端可以工作NR通信系统上，其中，终端可以通过第5代(the 5th generation，5G)NR通信系统与网络设备通信。该网络设备和终端也可以在其它通信系统上工作，本申请实施例不做限制。
网络设备可以是无线网络中的设备，例如将终端接入到无线网络的无线接入网(radio access network，RAN)节点。目前，一些RAN节点的举例为：gNB、传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、 基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，或无线保真(wireless fidelity，Wifi)接入点(access point，AP)等。在一种网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点、或分布单元(distributed unit，DU)节点、或包括CU节点和DU节点的RAN设备。可选的，网络设备可以是服务器，如单服务器、服务器群集或云端服务器等。本申请实施例中，实现网络设备的功能的装置可以是网络设备，也可以是支持网络设备实现该功能的装置，例如芯片、电路或者其它装置。
终端，又可称之为终端设备、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等，是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、或车载设备等。目前，一些终端的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、或智慧家庭(smart home)中的无线终端等。本申请实施例中，实现终端的功能的装置可以是终端，也可以是支持终端实现该功能的装置，例如芯片、电路或者其它装置。
作为一种示例，终端的一种结构可以如图2所示。如图2所示，终端可以包括应用处理器(application processor，AP)和调制解调器(modem)。
示例的，AP可以用于操作系统(operating system，OS)、用户界面或应用程序等的执行。例如，AP中可以包括任务调度器(task scheduler)，用于调度用户或应用程序等任务的执行。例如，AP中可以包括操作系统相关调度器(OS related scheduler)，用以调度OS相关任务的执行。
示例的，调制解调器可以将数字信号转发为模拟信号，将模拟信号转发为数字信号，以完成两个设备之间的通信。例如，对全球移动通信系统(global system for mobile communications，GSM)信号、码分多址(code division multiple access，CDMA)、LTE信号或NR信号等信号进行数模转换。例如，调制解调器中可以包括高级精简指令集计算机(advanced reduced instruction set computing machines，ARM)，用于对数/模信号进行处理以完成调制解调。例如，调制解调器中可以包括数字信号处理(digital signal processing，DSP)，用于对数字信号进行处理。例如，调制解调器中可以包括静态随机存取存储器(static random access memory，SRAM)，用于存储数据和/或计算机指令等。例如，调制解调器中可以包括高级时钟校准(advanced clock calibration，ACC)，用于对时钟频率及运算误差进行校正。
需要说明的是，图1所示的通信系统中所包含的网络设备和终端的数量和类型仅仅是一种举例，本申请实施例也并不限制于此。例如，本申请实施例所应用的通信系统中还可以包含更多的网络设备，或者包含更多能够与网络设备进行通信的终端等，为简明描述，不在附图中一一示出。此外，在图1所示的通信系统中，尽管示出了网络设备及终端，但所述通信系统中可以并不限于包括网络设备和终端，例如，还可以包括核心网设备或用于承载虚拟化网络功能的设备等，这些对于本领域普通技术人员而言是显而易见的，在此不一一详述。
本申请实施例中的术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，如无特殊说明，一般表示前后关联对象是一种“或”的关系。
除非有相反的说明，本申请实施例提及“第一”、“第二”、“第三”以及“第四”等序数词用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。
另外，在本申请实施例中，“示例的”一词用于表示作例子、例证或说明。本申请实施例中被描述为“示例”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用示例的一词旨在以具体方式呈现概念。
下面介绍本申请实施例涉及的技术特征。
在移动通信系统中，终端开机后，需要尽快搜索到一个合适小区并完成小区驻留。从发起小区搜索到驻留到合适小区的这一过程可称为终端的小区搜索流程。如图3所示。如图3所示，该流程可以包括：
S31，终端确定是否存储有先验信息。如果终端确定存储有先验信息，则终端执行步骤S32所示的内容；如果终端确定未存储先验信息，则终端进入频段扫描阶段，也即是终端执行步骤S34所示的内容。
例如，终端可以通过读取用户识别(subscriber identity module，SIM)卡确定是否存储有先验信息。该先验信息中可以包括至少一个频点，该至少一个频点可以是终端驻留过的小区的频点，例如，终端关机前所驻留的小区的频点。
S32，终端根据先验信息搜索小区。
例如，终端可以依次在至少一个频点上搜索小区。
S33，终端确定根据先验信息是否搜索到合适小区。如果终端确定根据先验信息未搜索到合适小区，则终端进入频段扫描阶段，也即是终端执行步骤S34所示的内容；如果终端确定根据先验信息搜索到合适小区，则终端执行步骤S35所示的内容。
S34，终端在其支持的至少一个频段上搜索小区，并搜索到合适小区。
例如，终端可以依次对终端支持的频段进行扫描，得到多个频点，然后对扫描到的多个频点依次搜索尝试驻留，直到搜索到合适小区为止。举例而言，终端支持的频段为频段1和频段2，频段1定义的频点搜索范围为频点搜索范围1，频段2定义的频点搜索范围为频点搜索范围2。终端依次在频点搜索范围1和频点搜索范围2内扫描，得到频点1、频点2和频点3。终端依次在频点1、频点2和频点3上搜索小区。例如，终端先在频点1上搜索小区，未搜索到合适小区，终端在频点2上搜索小区，搜索到合适小区，终端结束搜索并尝试驻留到该合适小区，即无需在频点3上搜索小区。
S35，终端驻留到合适小区。
例如，终端可以通过接收主同步信号/辅同步信号物理广播信道(synchronization signal and physical broadcast channel block，SSB)与该合适小区取得频率和时间上的同步，获取该合适小区的广播信息和网络侧注册登记，以驻留到该合适小区。
至此，终端的小区搜索流程结束。
在NR通信系统中，一方面NR通信系统的SSB的发送周期为20毫秒(ms)，其他制式(如第二代移动通信系统、第三代移动通信系统或第四代移动通信系统等)的SSB的发送周期均小于20ms；另一方面，相较于其他制式，NR支持的频段的带宽更宽。这就意味 着，相较于其他制式，NR通信系统中终端与小区取得同步所需的时间以及搜索完整个频段所需的时间更长。也即是，NR通信系统中终端搜索小区所需的时间要比其他制式中终端搜索小区所需的时间更长，影响用户体验。
鉴于此，本申请实施例提供一种应用于终端的小区搜索方法，以减少终端搜索小区的时长，提高用户体验。
请参考图4，图4为本申请实施例提供的一种应用于终端的小区搜索方法的流程示意图，该方法可以应用于图1所示的通信系统100中。本申请实施例中的终端可以为图1所示的终端。可以理解的是，本申请实施例中，由终端执行的步骤也可以具体由终端的一个模块或部件执行，如可以由该终端中的芯片或芯片系统执行。如图4所示，该方法可以包括：
S401：终端确定PLMN。
例如，终端开机后，终端可以确定PLMN。例如，终端处于漫游状态时，终端可以确定PLMN。例如，终端处于地库、电梯或隧道等网络覆盖弱的场景下时，终端可以确定PLMN。再例如，独立组网(stand alone，SA)建设初期布网不足，终端可以确定PLMN。本申请触发终端确定PLMN的场景不作限定。
示例的，终端可以确定PLMN。该PLMN可以对应一个或多个频段。例如，PLMN 1对应频段1，PLMN 2对应频段2和频段3。该一个或多个频段可以为PLMN对应的运营商支持的频段中的部分或全部。例如，PLMN对应的运营商支持3个频段，频段1、频段2和频段3，可将频段1配置给PLMN 1，频段2和频段3配置给PLMN 2。其中，PLMN对应的运营商可以服务于终端。例如，PLMN中的MNC可以用于确定PLMN对应的运营商。例如，PLMN中的MNC为00，则该PLMN对应的运营商可以为中国移动。再例如，PLMN中的MNC为01，则该PLMN对应的运营商可以为中国联通。其中，服务于终端的运营商的个数可以是一个或多个，本申请实施例对此并不限定。
作为一个示例，终端可以从自身维护的多个PLMN中确定PLMN。该多个PLMN可以是从SIM(或USIM)卡中读取的，也可以是本地存储的，还可以是从SIM(或USIM)卡中读取和本地存储的等，本申请实施例对此并不限定。例如，终端确定的PLMN可以是该多个PLMN中的优先级最高的PLMN。例如，终端维护有多个PLMN以及该多个PLMN的优先级。终端可以从该多个PLMN中选取优先级最高的PLMN来进行频段扫描。其中，多个PLMN的优先级可以是预先定义的，也可以是运营商配置的，还可以是网络设备配置的等，本申请实施例对此并不限定。
作为一个示例，PLMN可以对应一个或多个频段，以及该一个或多个频段中每个频段所对应的频点搜索范围。例如，每个频段所对应的频点搜索范围可以以PLMN为索引存储在终端内部，从而终端可以根据PLMN确定一个或多个频段，以及该一个或多个频段中每个频段所对应的频点搜索范围。其中，每个频段所对应的频点搜索范围的频点个数、小于每个频段内的全部频点个数。频段内的全部频点个数可以指该频段定义的频点搜索范围内的频点个数。例如，频段40定义的频点搜索范围为[2300MHz，2400MHz]，该频段40所对应的频点搜索范围可以为[2320MHz，2380MHz]。每个频段所对应的频点搜索范围可以是连续的，也可以是不连续的，本申请实施例对此并不限定。例如，频段40所对应的定制频点搜索范围可以为[2320MHz，2340MHz]和[2345MHz，2360MHz]。其中，频段定义的频点搜索范围可以指通信协议中为该频段划分的频点搜索范围。可以理解的是，对应 同一个频段，不同的通信协议为其划分的频点搜索范围可能相同，也可能不同，本申请实施例对此并不限定。
作为另一个示例，每个频段所对应的频点搜索范围内的频点可以包括基于以下一个或多个先验数据信息所筛选的部分或全部频点：PLMN对应的运营商的商用频点信息，或PLMN对应的终端驻留频点统计信息。PLMN对应的运营商的商用频点信息中可以包括PLMN对应的运营商使用的一个或多个频点。PLMN对应的终端驻留频点统计信息中可以包括注册过该PLMN的部分或全部终端曾经驻留过的小区的频点。例如，云服务器可以基于一个或多个先验数据信息筛选每个频段所对应的频点搜索范围内的频点。其中，该云服务器可以为运营商维护的服务器，或者为终端厂商维护的服务器，或者为运营商的基站，本申请实施例对此并不限定。再例如，终端自身可以基于一个或多个先验数据信息筛选每个频段所对应的频点搜索范围内的频点。
在另一个示例中，云服务器可以向终端发送网络数据，相应地，终端可以接收来自云服务器的网络数据，该网络数据可用于初始化或更新终端内部的每个频段所对应的频点搜索范围。其中，网络数据可以包括以下数据信息中的一种或多种：
(1)PLMN对应的一个或多个频段的数据信息。例如，一个或多个频段的数据信息可以包括运营商新增的一个或多个频段，运营商在新增频段内使用的一个或多个频点，或者运营商在其支持的频段内新增的一个或多个频点中的一项或多项。相应的，该PLMN对应的一个或多个频段的数据信息中可以包括PLMN对应的运营商新增的一个或多个频段，PLMN对应的运营商在新增频段内使用的一个或多个频点，或者PLMN对应的运营商在其支持的频段内新增的一个或多个频点中的一项或多项。例如，原本为运营商1配置频段1和频段2，现在又为运营商1配置频段3，该PLMN对应的一个或多个频段的数据信息可以包括频段3以及运营商1在频段3内使用的一个或多个频点。再例如，运营商1支持频段1，原本运营商1只使用频段1内的频点1和频点2，现在运营商1使用频段1内的频点3，该PLMN对应的一个或多个频段的数据信息可以包括频点2。
(2)一个或多个频段中每个频段所对应的频点搜索范围的数据信息。例如，其中，一个或多个频段中每个频段所对应的频点搜索范围的数据信息中可以包括每个频段所对应的频点搜索范围。例如，云服务器可以根据一个或多个先验数据信息筛选每个频段所对应的频点搜索范围内的频点，得到每个频段所对应的频点搜索范围，然后发送给终端。
(3)一个或多个先验数据信息。例如，终端接收来自云服务器的一个或多个先验数据信息，并根据该一个或多个先验数据信息筛选每个频段所对应的频点搜索范围内的频点，得到每个频段所对应的频点搜索范围。
例如，如果网络数据包括PLMN对应的一个或多个频段的数据信息，则终端接收到网络数据后，可以根据PLMN对应的一个或多个频段的数据信息更新每个频段所对应的频点搜索范围。例如，如果网络数据包括PLMN对应的一个或多个频段的数据信息，则终端接收到网络数据后，可以根据PLMN对应的一个或多个频段的数据信息初始化每个频段所对应的频点搜索范围。再例如，如果网络数据包括一个或多个先验数据信息，则终端接收到网络数据后，可以根据一个或多个先验数据信息初始化每个频段所对应的频点搜索范围。
下面结合图5～图7介绍每个频段所对应的频点搜索范围的确定流程。
图5示出了本申请实施例提供的一种确定频段所对应的频点搜索范围的方法流程示意图，该方法可以应用于图1所示的通信系统100中。本申请实施例中的终端可以为图1所 示的终端，本申请实施例中的云服务器可以为图1所示网络设备，或者为运营商维护的服务器，或者为终端厂商维护的服务器。可以理解的是，本申请实施例中，由终端执行的步骤也可以具体由终端的一个模块或部件执行，如可以由该终端中的芯片或芯片系统执行。由云服务器执行的步骤也可以具体网络设备的一个模块或部件执行，如可以由该网络设备中的芯片或芯片系统执行。如图5所示，该方法可以包括：
S51：云服务器确定一个或多个先验数据信息。
例如，云服务器可以确定一个或多个先验数据信息。一个先验数据信息可以对应一个运营商。例如，云服务器可以获取运营商1的先验数据信息，得到一个先验数据信息。再例如，云服务器可以分别获取运营商1和运营商2的先验数据信息，得到两个先验数据信息。
示例的，先验数据信息可以包括运营商的商用频点信息，或者，先验数据信息包括终端驻留频点统计信息，或者运营商的商用频点信息和终端驻留频点统计信息。例如，运营商的商用频点信息可以包括运营商支持的频段以及运营商在该频段内使用的频点。终端驻留频点统计信息可以包括同一运营商服务的部分或全部终端曾经驻留过的小区的频点。
作为一个示例，云服务器可以根据运营商的布网信息确定该运营商的商用频点信息。其中，布网信息可以包括基站名称、站点经纬度、基站支持的频段或基站支持的频点等信息中的全部或部分。例如，当云服务器为运营商的基站或运营商维护的服务器时，云服务器可以通过收集运营商的布网信息来确定该运营商的商用频点信息。
作为另一个示例，云服务器可以通过与运营商交互确定运营商的商用频点信息。例如，当云服务器为终端厂商维护的服务器时，云服务器可以通过与运营商进行交互获取该运营商的商用频点信息，或者，管理人员可以将运营商的商用频点信息导入给云服务器。再例如，当云服务器为终端厂商维护的服务器时，云服务器可以通过与运营商进行交互获取运营商的布网信息，并根据运营商的布网信息确定该运营商的商用频点信息；或者，管理人员可以将运营商的布网信息导入给云服务器，云服务器可以根据导入的布网信息确定该运营商的商用频点信息。
作为另一个示例，云服务器可以通过大数据统计确定终端驻留频点统计信息。例如，云服务器可以通过大数据统计确定同一个运营商服务的终端曾经驻留过的小区的频点，可以确定针对不同运营商的终端驻留频点统计信息。
S52：云服务器根据一个或多个先验数据信息确定网络数据，网络数据中包括每个频段所对应的频点搜索范围。
在本示例中，网络数据包括每个频段所对应的频点搜索范围。
例如，云服务器可以根据运营商的商用频点信息确定每个频段所对应的频点搜索范围，或者，云服务器可以根据终端驻留频点统计信息确定每个频段所对应的频点搜索范围，或者，云服务器可以根据运营商的商用频点信息和终端驻留频点统计信息确定每个频段所对应的频点搜索范围。
下面以确定第一频段所对应的频点搜索范围为例，对步骤S52进行描述。
作为一个示例，云服务器可以根据运营商的商用频点信息筛选第一频段所对应的频点搜索范围内的频点。例如，运营商的商用频点信息中包括多个频点，云服务器可将该多个频点中的部分频点作为第一频段所对应的频点搜索范围内的频点。其中，该部分频点可以是多个频点中使用率大于第一阈值的频点，该第一阈值可以是预先设定的，也可以是网络 侧配置的，还可以是运营商配置的，本申请实施例对此并不限定。再例如，运营商的商用频点信息中包括一个或多个频点，云服务器可将该一个或多个频点中的全部频点作为第一频段所对应的频点搜索范围内的频点。示例的，在云服务器确定将运营商的商用频点信息中的一个或多个频点作为第一频段所对应的频点搜索范围内的频点后，云服务器可以根据该一个或多个频点确定第一频率和第二频率。其中，第一频率可以为第一频段所对应的频点搜索范围中的最小频率，第二频率为第一频段所对应的频点搜索范围中的最大频率。
例如，当云服务器将运营商的商用频点信息中的多个频点作为第一频段所对应的频点搜索范围内的频点时，第一频率可以小于或等于多个频点对应的多个频率中的最小频率，且大于第一频段定义的频点搜索范围中的最小频率，第二频率可以大于或等于多个频点对应的多个频率中的最大频率，且小于第一频段定义的频点搜索范围中的最大频率。再例如，当云服务器将运营商的商用频点信息中的一个频点作为第一频段所对应的频点搜索范围内的频点时，第一频率可以小于或等于该频点对应的频率、且大于第一频段定义的频点搜索范围中的最小频率，第二频率可以大于该频点对应的频率、且小于第一频段定义的频点搜索范围中的最大频率。
举例而言，频段40定义的频点搜索范围为[2300MHz，2400MHz]，云服务器确定将运营商的商用频点信息中的频点1、频点2和频点3作为第一频段所对应的频点搜索范围内的频点。其中，频点1对应的频率为2330MHz，频点2对应的频率为2335MHz，频点3对应的频率为2346MHz。云服务器在为频段40定制频点搜索范围时，可以确定第一频率为2327MHz，第二频率为2350MHz，则云服务器为频段40定制的频点搜索范围可以为[2327MHz，2350MHz]。
作为一个示例，云服务器可以根据终端驻留频点统计信息筛选第一频段所对应的频点搜索范围内的频点。例如，终端驻留频点统计信息包括多个频点，云服务器可将该多个频点中的部分频点作为第一频段所对应的频点搜索范围内的频点。其中，该部分频点可以是多个频点中使用率大于第二阈值的频点，该第二阈值可以是预先设定的，也可以是网络侧配置的，还可以是运营商配置的，本申请实施例对此并不限定。再例如，终端驻留频点统计信息中包括一个或多个频点，云服务器可将该一个或多个频点中的全部频点作为第一频段所对应的频点搜索范围内的频点。示例的，在云服务器确定将终端驻留频点统计信息中的一个或多个频点作为第一频段所对应的频点搜索范围内的频点后，云服务器可以根据该一个或多个频点确定第一频率和第二频率。其中，第一频率可以为第一频段所对应的频点搜索范围中的最小频率，第二频率为第一频段所对应的频点搜索范围中的最大频率。
举例而言，频段40定义的频点搜索范围为[2300MHz，2400MHz]，终端驻留频点统计信息中可以包括频点4、频点5和频点6，频点4对应的频率为2325MHz，频点5对应的频率为2330MHz，频点6对应的频率为2333MHz。云服务器在根据终端驻留频点统计信息为频段40定制频点搜索范围时，可以确定第一频率为2325MHz，第二频率为2335MHz，则网络设备为频段40定制的频点搜索范围可以为[2325MHz，2335MHz]。
作为另一个示例，云服务器可以根据运营商的商用频点信息和终端驻留频点统计信息筛选第一频段所对应的频点搜索范围内的频点。例如，云服务器可以将运营商的商用频点信息包括的部分或全部频点，以及终端驻留频点统计信息包括的部分或全部频点作为第一频段所对应的频点搜索范围内的频点。
举例而言，频段40定义的频点搜索范围为[2300MHz，2400MHz]，运营商的商用频 点信息中可以包括频点1、频点2和频点3，终端驻留频点统计信息中可以包括频点4、频点5和频点6。频点1对应的频率为2330MHz，频点2对应的频率为2335MHz，频点3对应的频率为2346MHz，频点4对应的频率为2325MHz，频点5对应的频率为2330MHz，频点6对应的频率为2333MHz。网络设备在运营商的商用频点信息和终端驻留频点统计信息为频段40定制频点搜索范围时，可以确定第一频率为2325MHz，第二频率为2350MHz，则网络设备为频段40定制的频点搜索范围可以为[2325MHz，2350MHz]。
S53：云服务器向终端发送网络数据。相应的，终端接收网络数据。
例如，终端接收到网络数据后，可以将每个频段所对应的频点搜索范围以PLMN为索引进行存储。存储形式可以为表格、数据库、文字或图片等，本申请实施例对此并不限定。其中，一个PLMN可以对应一个或多个频段，一个频段可以对应一个或多个频点搜索范围，如表1所示。如表1所示，PLMN 1可以用于确定频段1，以及频段1所对应的频点搜索范围为[A1，B1]；PLMN 2可以用于确定频段2，以及频段2所对应的频点搜索范围为[A2，B2]和[A3，B3]；PLMN 3可以用于确定频段1，频段1所对应的频点搜索范围为[A4，B4]和[A5，B5]，频段3，以及频段3所对应的频点搜索范围为[A6，B6]。
表1：PLMN列表
Figure PCTCN2020119744-appb-000001
作为一个示例，PLMN列表可以存储在终端的AP中，如存储在该AP中的云通信模块中，该云通信模块可用于使得终端支持云通信。当进入频段搜索阶段后，终端的调制解调器可以与云通信模块交互，以获取存在云通信模块中的PLMN列表，如图6所示。调制解调器可以根据选择的PLMN以及PLMN列表，确定PLMN对应的一个或多个频段，以及该一个或多个频段中每个频段所对应的频点搜索范围。
作为另一个示例，PLMN列表可以存储在内存中。当进入频段搜索阶段后，终端的调制解调器可以直接从内存中获取PLMN列表，根据选择的PLMN以及PLMN列表，确定PLMN对应的一个或多个频段，以及该一个或多个频段中每个频段所对应的频点搜索范围。
在一种可能的实现方式中，终端可以向云服务器发送网络数据的响应消息(如确认消息或否认消息)，用于指示终端是否成功接收到网络数据。相应地，云服务器接收该网络数据的响应消息。例如，终端接收到网络数据后，可以向云服务器发送确认消息，以指示终端成功接收到网络数据。
至此，终端获取到每个频段所对应的频点搜索范围，并存储。
图7示出了本申请实施例提供的一种确定频段所对应的频点搜索范围的方法流程示意图，该方法可以应用于图1所示的通信系统100中。本申请实施例中的终端可以为图1所示的终端，本申请实施例中的云服务器可以为图1所示网络设备，或者为运营商维护的服务器，或者为终端厂商维护的服务器。可以理解的是，本申请实施例中，由终端执行的步 骤也可以具体由终端的一个模块或部件执行，如可以由该终端中的芯片或芯片系统执行。由云服务器执行的步骤也可以具体网络设备的一个模块或部件执行，如可以由该网络设备中的芯片或芯片系统执行。如图7所示，该方法可以包括：
S71：云服务器确定一个或多个先验数据信息。
示例的，先验数据信息可以包括运营商的商用频点信息，或者，先验数据信息包括终端驻留频点统计信息，或者运营商的商用频点信息和终端驻留频点统计信息。例如，运营商的商用频点信息可以包括运营商支持的频段以及运营商在该频段内使用的频点。终端驻留频点统计信息可以包括同一运营商服务的部分或全部终端曾经驻留过的小区的频点。其中，云服务器确定先验数据信息的具体实施方式可以参见图5中步骤S51所示的内容，在此不再赘述。
S72：云服务器向终端发送网络数据。相应的，终端接收网络数据。网络数据包括一个或多个先验数据信息。
在本示例中，云服务器向终端发送的网络数据中包括一个或多个先验数据信息。例如，云服务器收集到一个或多个先验数据信息后，可以将收集到的一个或多个先验数据信息发送给终端。
S73：云服务器根据网络数据确定每个频段所对应的频点搜索范围。
例如，云服务器接收到一个或多个先验数据信息后，云服务器可以根据该一个或多个先验数据信息确定每个频段所对应的频点搜索范围。例如，云服务器可以根据运营商的商用频点信息确定每个频段所对应的频点搜索范围，或者，云服务器可以根据终端驻留频点统计信息确定每个频段所对应的频点搜索范围，或者，云服务器可以根据运营商的商用频点信息和终端驻留频点统计信息确定每个频段所对应的频点搜索范围。其中，每个频段所对应的频点搜索范围的确定方式以及存储方式可以参见图5中步骤S52和S53所示的内容，在此不再赘述。
在一种可能的实现方式中，终端可以向云服务器发送网络数据的响应消息(如确认消息或否认消息)，用于指示终端是否成功接收到网络数据。相应地，云服务器接收该网络数据的响应消息。例如，终端接收到网络数据后，可以向云服务器发送确认消息，以指示终端成功接收到网络数据。
至此，终端获取到每个频段所对应的频点搜索范围，并存储。
在另一种可能的实现方式中，网络数据中包括一个或多个频段的数据信息。在此情况下，可参考图7所示的方式流程，云服务器可以确定一个或多个频段的数据信息，如通过运营商进行交互获取，或者由管理人员导入等。云服务器确定一个或多个频段的数据信息后，可以将网络数据发送给终端，相应地，终端接收网络数据，该网络数据包括一个或多个频段的数据信息。终端接收到网络数据后，可以根据一个或多个频段的数据信息更新相应频段所对应的频点搜索范围。
举例而言，当前频段40所对应的频点搜索范围[2325MHz，2350MHz]。终端接收到的一个或多个频段的数据信息中包括频段40、频点1和频点2，频点1对应的频率为2324MHz，频点2对应的频率为2351MHz。终端根据一个或多个频段的数据信息更新相应频段对应的频点搜索范围后，该频段40所对应的频点搜索范围可以为[2323MHz，2352MHz]。
S402：终端确定是否存储有先验信息。如果终端确定存储有先验信息，则终端执行步骤S403所示的内容。如果终端确定没有存储先验信息，则终端进入频段扫描阶段，也即 是终端执行步骤S405所示的内容。
例如，先验信息中可以包括至少一个频点，该至少一个频点可以是该终端驻留过的小区的频点。例如，先验信息可以为终端关机前所驻留的小区的频点信息(如频点、小区标识等)，可选的，先验信息中还可以包括小区标识。
示例的，终端可以确定是否存储有先验信息。例如，终端可以通过读取内存、SIM卡或全球用户识别(universal SIM，USIM)卡，确定是否存储有先验信息。例如，当终端首次插入SIM卡或USIM卡时，终端可以确定没有存储先验信息。
S403：终端根据先验信息搜索合适小区。
示例的，终端可以在先验信息包括的至少一个频点上搜索合适小区。例如，当先验信息中包括1个频点个时，终端可以直接在该频点上搜索合适小区；当先验信息中包括多个频点时，终端可以依次在多个频点上搜索合适小区。例如，该多个频点包括频点1、频点2和频点3，终端可以先频点1上搜索合适小区，未搜索到；终端在频点2上搜索合适小区，未搜索到；终端在频点3上搜索合适小区。
需要说明的是，合适小区可以指终端搜索到的、并尝试驻留的小区。例如，终端在某个频段内搜索到多个小区，合适小区可以为该多个小区中满足预定准则的一个小区。该预定准则可以为S准则、R准则或H准则等中的任一个，本申请实施例对此并不限定。
S404：终端确定根据先验信息是否搜索到合适小区。如果终端确定根据先验信息搜索到合适小区，则终端执行步骤S407所示的内容。如果终端确定根据先验信息未搜索到合适小区，则终端进入频段扫描阶段，也即是终端执行步骤S405所示的内容。
例如，如果终端在先验信息包括的至少一个频点上搜索到合适小区，则终端可以尝试驻留到合适小区，也即是执行步骤S407所示的内容。如果终端在先验信息包括的至少一个频点上没有搜索到合适小区，则终端可以进行频段扫描，也即是终端执行步骤S405所示的内容。
示例的，如果终端在先验信息包括的至少一个频段上搜索到合适小区，但未成功驻留到合适小区，则终端进入频段扫描阶段，也即是终端执行步骤S407所示的内容。例如，终端根据先验信息搜索到合适小区后，尝试驻留到该合适小区的过程中，被该合适小区拒绝接入。
现有技术中，终端未能在先验信息中搜索到合适小区后，会对PLMN的全频段进行扫描。由于本申请实施例中的PLMN可以指示一个或多个频段中每个频段所对应的频点搜索范围，且，每个频段所对应的频点搜索范围内的频点个数小于每个频段内的全部频点个数，因此可以减少在每个频段内的扫描时长，从而能够整体缩短小区搜索的时长。具体的，终端可以获取PLMN对应的一个或多个频段中每个频段所对应的频点搜索范围，也即是终端执行步骤S405所示的内容。
S405：终端获取PLMN对应的一个或多个频段、以及该一个或多个频段中每个频段所对应的频点搜索范围。
示例的，由于频段和频段所对应的频点搜索范围是以PLMN为索引存储的，因此在小区搜索的频扫描阶段中，终端可以根据步骤S401所确定的PLMN确定该PLMN对应的一个或多个频段，以及该一个或多个频段中每个频段所对应的定制频点搜索范围。例如，终端可以根据PLMN查询PLMN列表(如表1所示)，获取该PLMN对应的一个或多个频段、以及该一个或多个频段中每个频段所对应的频点搜索范围。
为了便于表述，在下文中可以将步骤S401中确定的PLMN称为第一PLMN，该第一PLMN对应第一运营商，将第一PLMN对应第一频段，将第一频段所对应的频点搜索范围称为第一频点搜索范围。
在一种可能的实现方式中，终端可以根据第一频段确定第二PLMN，第二PLMN对应于第二运营商。终端可以获取第二PLMN所对应的一个或多个频段，以及一个或多个频段中每个频段所对应的频点搜索范围。其中，第二PLMN所对应的一个或多个频段中包括第一频段，将第二PLMN对应的第一频段所对应的频点搜索范围称为第二频点搜索范围。例如，终端可以根据第一频段查询PLMN列表(如表1所示)，获取第二PLMN和第二频点搜索范围。在此情况下，终端可以在第三频点范围内搜索小区，第三频点范围中包括第一频点范围和第二频点范围，且第三频点范围包括的频点个数小于第一频段的全部频点个数。
可选的，第一运营商与第二运营商可以为同一运营商，也可以为不同运营商，本申请实施例对此并不限定。其中，第一运营商与第二运营商皆服务于终端。例如，当第一频点搜索范围包括第一运营商在第一频段内使用的部分频点，第二频点搜索范围包括第二运营商在第一频段内使用的部分频点时，第一运营商与第二运营商可以为同一个运营商。在此情况下，第一频点搜索范围或第二频点搜索范围可以理解为更新得到的频点搜索范围。
以第一运营商与第二运营商为不同运营商为例，协议定义频段41的频点搜索范围为[2500MHz，2690MHz](记为频点搜索范围1)，频段41中的[2555MHz，2575MHz]配置给运营商1，频段41中的[2575MHz，2635MHz]配置给运营商2。云服务器可以根据运营商1的商用频点信息将[2555MHz，2575MHz]裁剪为[2560MHz，2570MHz](记为频点搜索范围2)，并将频段41以及频点搜索范围2以PLMN 1为索引配置给终端。根据运营商2的商用频点信息可以将[2575MHz，2635MHz]裁剪为[2585MHz，2625MHz](记为频点搜索范围3)，并将频段41以及频点搜索范围3以PLMN 2为索引配置给终端。当终端确定对频段41扫描时，终端可以根据PLMN 1和PLMN 2确定频段41的定制频点搜索范围为[2560MHz，2570MHz]和[2585MHz，2625MHz]，然后在[2560MHz，2570MHz]和[2585MHz，2625MHz]内搜索合适，如图8所示。
以第一运营商与第二运营商为同一运营商为例，协议定义频段41的频点搜索范围为[2500MHz，2690MHz](记为频点搜索范围1)，频段41中的[2555MHz，2575MHz]配置给运营商1。终端本地存储有PLMN 3以及频点搜索范围[2557MHz，2568MHz](可记为频点搜索范围4)。云服务器根据运营商1的商用频点信息可以将[2555MHz，2575MHz]裁剪为[2564MHz，2573MHz](记为频点搜索范围5)，并将频段41以及频点搜索范围5以PLMN 4为索引配置给终端。当终端确定对频段41扫描时，终端可以确定PLMN 3和PLMN 4确定频段41的定制频点搜索范围为[2557MHz，2573MHz]，然后在[2557MHz，2573MHz]内搜索合适，如图9所示。
在另一种可能的实现方式中，终端可以根据第一频段确定第三PLMN，第三PLMN未配置频点搜索范围。例如，在终端确定在第一频段内搜索合适小区后，终端可以根据第一频段和PLMN列表(如表1所示)，确定第一频段对应的其它PLMN，得到第三PLMN以及第三PLMN是否配置频点搜索范围。例如终端未升级系统，而网络发生升级，如新增PLMN、新增频段或新增频点等，尚未对第三PLMN配置频点搜索范围。在此情况下，终端在第一频段内的全部频点上搜索小区(也即是全频段所示合适小区)，以避免错过搜索到合适小区的风险，如图10所示。
S406：终端根据每个频段所对应的频点搜索范围搜索合适小区。
例如，终端扫描的频段个数可以为一个或多个。例如，当频段个数为一个时，终端可以在该频段所对应的频点搜索范围内扫描信号比较强的频点，得到多个频点，然后终端依次在该多个频点上搜索合适小区。再例如，当频段个数为多个时，终端可以依次该多个频段中每个频段所对应的频点搜索范围内扫描合适小区。
举例而言，终端扫描的频段为频段1、频段2和频段3，终端可以在该频段1所对应的频点搜索范围内扫描信号比较强的频点，得到多个频点，然后终端依次在该多个频点上搜索合适小区，未搜索到合适小区或者在搜索到的合适小区上驻留失败；之后，终端可以在该频段2所对应的频点搜索范围内扫描信号比较强的频点，得到多个频点，然后终端依次在该多个频点上搜索合适小区，搜索到合适小区并成功驻留，至此小区搜索结束，也即是终端可以不用搜索频段3所对应的频点搜索范围。
S407：终端驻留到合适小区。
示例的，终端搜索到合适小区后，终端可以尝试驻留在合适小区。例如，终端可以通过接收来自合适小区的SSB信号与合适小区在时间和频率上同步，并接收合适小区的广播信息以及进行网络侧注册登记，注册登记成功后，终端驻留到合适小区。
在一种可能的实现方式中，当PLMN列表存储在云通信模块时，上述图4所示的流程可通过终端中的云通信模块和调制解调器交互实现，如图11所示。图11示出了本申请实施例提供的应用于终端的小区搜索方法的另一种流程示意图，该方法可以由图2所示的终端执行。如图11所示，该方法可以包括：
S1101：终端进入频段扫描阶段。
例如，终端首次插入SIM卡(或USIM卡)，终端内部没有先验信息，在终端开机后，终端进入频段扫描阶段。例如，终端开机后，根据先验信息未搜索到合适小区，终端进入频段扫描阶段。再例如，终端开机后，根据先验信息搜索到合适小区，但驻留失败，终端进入频段扫描阶段。例如，隧道、车库或SA建设初期网络覆盖不足等场景下，终端会以较高的概率进入频段扫描阶段。
S1102：调制解调器向应用处理器发送第一消息，相应地，应用处理器接收第一消息。
其中，第一消息可用于申请获取PLMN列表(如表1所示)，或者读取PLMN列表。例如，终端进入频段扫描阶段后，终端中的调制解调器可以确定PLMN，并向应用处理器发送第一消息，以获取读取PLMN列表的权限。例如，PLMN存储在应用处理器的云通信模块中，调制解调器可以确定PLMN，并直接向云通信模块发送第一消息，以获取读取云通信模块中存储的PLMN列表的权限。其中，PLMN的确定可以参考图4中步骤S404所示的内容，在此不再赘述。可以理解的是，调制解调器与应用处理器(或云通信模块)之间的交互可以基于协议栈实现，本申请实施例对此不作限定。
S1103：应用处理器向调制解调器发送第二消息，相应地，调制解调器接收第二消息。
其中，第二消息可以是第一消息的应答消息，可以用于为调制解调器提供PLMN列表。例如，应用处理器(或云通信模块)接收到调制解调器的第一消息后，允许调制解调器访问PLMN列表，则向应用处理器(或云通信模块)发送确认消息。再例如，应用处理器(或云通信模块)接收到调制解调器的第一消息后，不允许调制解调器访问PLMN列表，则向应用处理器(或云通信模块)发送否认消息。
S1104：调制解调器根据PLMN列表确定频段所对应的频点搜索范围，并在该频段所 对应的频点搜索范围内搜索合适小区。
例如，调制解调器获取到访问PLMN列表的权限后，可以根据PLMN列表确定频段所对应的频点搜索范围，并在该频段所对应的频点搜索范围内搜索合适小区，具体实现过程可参见图4中步骤S405～S407所示的内容，在此不再赘述。再例如，如果调制解调器没有获取到访问PLMN列表的权限，则调制解调器扫描频段的全部频点。
本申请的上述实施例中，终端在PLMN对应的一个或多个频段中每个频段所对应的频点搜索范围内搜索合适小区，其中，每个频段所对应的频点搜索范围的频点个数、小于每个频段的全部频点个数。意味着，针对单个频段，终端扫描的是该频段的部分频点，相较于现有技术中需要扫描该频段的全部频点而言，可以减少终端对单个频段扫描的时长。在需要对多个频段扫描时，上述技术方案可以整体缩短终端进行频段扫描的时长，从而可以减少终端搜索小区的时长，可以提高用户体验。
图12示出了一种通信装置1200的结构示意图。其中，通信装置1200可以是上述图4至图11所示的实施例中的终端，能够实现本申请实施例提供的方法中终端的功能；通信装置1200也可以是能够支持终端实现本申请实施例提供的方法中终端的功能的装置。通信装置1200可以是硬件结构、软件模块、或硬件结构加软件模块。通信装置1200可以由芯片系统实现。本申请实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
通信装置1200可以包括处理模块1201和小区搜索模块1202。其中：
处理模块1201，可以用于在小区搜索的频段扫描阶段中，获取公共陆地移动网PLMN对应的一个或多个频段，以及一个或多个频段中每个频段所对应的频点搜索范围，其中，每个频段所对应的频点搜索范围内的频点个数，小于每个频段内的全部频点个数。
小区搜索模块1202，可以用于根据每个频段所对应的频点搜索范围，搜索是否有合适小区，并尝试在搜索到的合适小区上驻留；其中，每个频段所对应的频点搜索范围内的频点包括基于以下一个或多个先验数据信息所筛选的部分频点：PLMN对应的运营商的商用频点信息，以及PLMN对应的终端驻留频点统计信息。
在一种可能的实现方式中，每个频段所对应的频点搜索范围以PLMN为索引存储在终端内部。
在一种可能的实现方式中，小区搜索模块1202，进一步可以用于：接收来自云服务器的网络数据，网络数据用于初始化或更新终端内部的每个频段所对应的频点搜索范围。
在一种可能的实现方式中，云服务器的网络数据包括以下数据信息中的一种或多种：PLMN对应的一个或多个频段的数据信息，一个或多个频段中每个频段所对应的频点搜索范围的数据信息，一个或多个先验数据信息。
在一种可能的实现方式中，PLMN对应的一个或多个频段包括新无线电NR系统的频段。
小区搜索模块1202用于通信装置1200和其它模块进行通信，其可以是电路、器件、接口、总线、软件模块、收发器、收发模块或者其它任意可以实现通信的装置。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
需要说明的是，处理模块又可以称为处理单元、处理器、处理装置、或处理单板等，收发模块又可以称为通信模块、收发器、收发机、收发单元、或收发电路等，本申请实施 例对此并不限定。
本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
上述方法中的部分或全部可以通过硬件来实现也可以通过软件来实现。当通过硬件实现时，如图13所示，通信装置1300包括：接口电路1301，用于实现小区搜索模块1202所实现的功能；逻辑电路1302，用于实现处理模块1201所实现的功能。
可选的，通信装置在具体实现时可以是芯片或者集成电路。
如图14所示为本申请实施例提供的通信装置该装置可以是终端，也可以是终端中的装置(例如，芯片或者芯片系统或芯片组或芯片中用于执行相关方法功能的一部分)。其中，该装置可以为芯片系统。本申请实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。装置1400包括至少一个处理器1420，用于实现本申请实施例提供的方法中终端的功能。装置1400还可以包括通信接口1410。在本申请实施例中，通信接口1410可以是收发器、电路、总线、模块或其它类型的通信接口，用于通过传输介质和其它设备进行通信。例如，在实现编码装置的功能时，通信接口1410用于装置1400中的装置可以和其它设备进行通信。示例性地，该其它设备可以是网络设备或云服务器。处理器1420利用通信接口1410收发数据，并用于实现上述方法实施例终端所实现的方法。
装置1400还可以包括至少一个存储器1430，用于存储程序指令和/或数据。存储器1430和处理器1420耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器1420可能和存储器1430协同操作。处理器1420可能执行存储器1430中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
本申请实施例中不限定上述通信接口1410、处理器1420以及存储器1430之间的具体连接介质。本申请实施例在图14中以存储器1430、处理器1420以及通信接口1410之间通过总线1440连接，总线在图14中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图14中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中，存储器可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
本申请实施例中还提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行前述实施例中终端所执行的方法。
本申请实施例中还提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得计算机执行前述实施例中终端所执行的方法。
本申请实施例提供了一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现前述方法中终端的功能。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (16)

  1. 一种应用于终端的小区搜索方法，其特征在于，包括：
    在小区搜索的频段扫描阶段中，获取公共陆地移动网PLMN对应的一个或多个频段，以及所述一个或多个频段中每个频段所对应的频点搜索范围，其中，所述每个频段所对应的频点搜索范围内的频点个数，小于所述每个频段内的全部频点个数；
    根据所述每个频段所对应的频点搜索范围，搜索是否有合适小区，并尝试在搜索到的合适小区上驻留；其中，所述每个频段所对应的频点搜索范围内的频点包括基于以下一个或多个先验数据信息所筛选的部分频点：
    所述PLMN对应的运营商的商用频点信息，以及所述PLMN对应的终端驻留频点统计信息。
  2. 根据权利要求1所述的方法，其特征在于：
    所述每个频段所对应的频点搜索范围以所述PLMN为索引存储在所述终端内部。
  3. 根据权利要求1或2所述的方法，其特征在于，还包括：
    接收来自云服务器的网络数据，所述网络数据用于初始化或更新所述终端内部的所述每个频段所对应的频点搜索范围。
  4. 根据权利要求3所述的方法，其特征在于：
    所述云服务器的网络数据包括以下数据信息中的一种或多种：
    所述PLMN对应的一个或多个频段的数据信息，所述一个或多个频段中每个频段所对应的频点搜索范围的数据信息，所述一个或多个先验数据信息。
  5. 根据权利要求1至4中任一所述的方法，其特征在于：
    所述PLMN对应的一个或多个频段包括新无线电NR系统的频段。
  6. 一种通信装置，其特征在于，所述通信装置包括处理模块和小区搜索模块；
    所述处理模块，用于在小区搜索的频段扫描阶段中，获取公共陆地移动网PLMN对应的一个或多个频段，以及所述一个或多个频段中每个频段所对应的频点搜索范围，其中，所述每个频段所对应的频点搜索范围内的频点个数，小于所述每个频段内的全部频点个数；
    所述小区搜索模块，用于根据所述每个频段所对应的频点搜索范围，搜索是否有合适小区，并尝试在搜索到的合适小区上驻留；其中，所述每个频段所对应的频点搜索范围内的频点包括基于以下一个或多个先验数据信息所筛选的部分频点：
    所述PLMN对应的运营商的商用频点信息，以及所述PLMN对应的终端驻留频点统计信息。
  7. 根据权利要求6所述的通信装置，其特征在于：
    所述每个频段所对应的频点搜索范围以所述PLMN为索引存储在所述终端内部。
  8. 根据权利要求6或7所述的通信装置，其特征在于，所述小区搜索模块，进一步用于：
    接收来自云服务器的网络数据，所述网络数据用于初始化或更新所述终端内部的所述每个频段所对应的频点搜索范围。
  9. 根据权利要求8所述的通信装置，其特征在于：
    所述云服务器的网络数据包括以下数据信息中的一种或多种：
    所述PLMN对应的一个或多个频段的数据信息，所述一个或多个频段中每个频段所对应的频点搜索范围的数据信息，所述一个或多个先验数据信息。
  10. 根据权利要求6至9中任一所述的通信装置，其特征在于：
    所述PLMN对应的一个或多个频段包括新无线电NR系统的频段。
  11. 一种通信装置，其特征在于，包括：
    逻辑电路，用于获取公共陆地移动网PLMN对应的一个或多个频段，以及所述一个或多个频段中每个频段所对应的频点搜索范围，使得通信装置执行权利要求1～5中任一项所述的方法，其中，所述每个频段所对应的频点搜索范围内的频点个数，小于所述每个频段内的全部频点个数；
    接口电路，用于根据所述每个频段所对应的频点搜索范围，搜索是否有合适小区，并尝试在搜索到的合适小区上驻留；其中，所述每个频段所对应的频点搜索范围内的频点包括基于以下一个或多个先验数据信息所筛选的部分频点：
    所述PLMN对应的运营商的商用频点信息，以及所述PLMN对应的终端驻留频点统计信息。
  12. 一种通信装置，其特征在于，包括：
    存储器，用于存储程序；
    处理器，用于执行所述存储器存储的所述程序，当所述程序被执行时，使得所述通信装置执行如权利要求1～5中任一项所述的方法。
  13. 根据权利要求12所述的装置，其特征在于，所述处理器包括所述存储器。
  14. 根据权利要求12或13所述的装置，其特征在于，所述通信装置为芯片或集成电路。
  15. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机可读指令，当所述计算机可读指令在通信装置上运行时，使得所述通信装置执行权利要求1～5中任一项所述的方法。
  16. 一种计算机程序产品，其特征在于，当所述计算机程序产品在通信装置上运行时，使得所述通信装置执行权利要求1～5中任一所述的方法。
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